80results about How to "Stable drainage" patented technology

The invention discloses a plate evaporator type MVC heat pump evaporation system. The system comprises a feed preheating pipeline, an evaporation circulation pipeline, a compressing pipeline, a condensing pipeline, a water spray pipeline, a water discharge pipeline and a material discharging pipeline. The system is designed to recycle steam in order to realize energy saving, and can effectively protect a compressor and realize the automatic control adjust of the system. The evaporation system is mainly used for evaporation of chemical industry aqueous solutions, evaporation of salt forming industrial salt solutions, concentration of environmentally-friendly industrial wastewater, and other efficient evaporative concentration of clean liquids; and compared with traditional evaporation systems, the system disclosed in the invention has the obvious advantages of energy saving and great economic benefit.

A draining structure of demoistener for draining in ordinary mode or continuous mode has a casing containing a heat exchanger, a draining tray with draining outlet for collecting the condensed water dropped from heat exchanger, a water tank under said draining outlet, a draining tube for draining the condensed water from said draining outlet, and a connecting tube able to be turned for making a selection between water tank and draining tube, that is, selecting ordinary mode or continuous mode.

The invention discloses an air-conditioner air supplier and a floor air conditioner. The air-conditioner air supplier comprises a plurality of hollow air guiders with air inlets and air outlets, the air guiders are arranged front and back in sequence and through air passages running through front and back are formed between the air guiders. Heat exchange air passages are formed between every two adjacent air guiders, a supplier mixed air outlet and a supplier non-heat-exchange air inlet are formed in the front end and the rear end of the air-conditioner air supplier respectively, and drainage portions extending outwards away from the through air passages and guiding the airflow into the heat exchange at least form the front air guiders of the mixed air outlet in the air guiders. The air guiders of the air-conditioner air supplier are provided with the drainage portions, the airflow can be stably, smoothly and orderly guided into the heat exchange air passages of the supplier, flow velocity of the airflow is increased and air feed noise is reduced.

The invention discloses a ventricular drainage adjustable height support which comprises a fixing plate, clamping plates, a fixing sleeve, a lifting rod, a rack, a clamp sleeve, a rotating shaft, a first gear, a gear sleeve, a second gear, a limiting plate, a first spring, a fixing shaft, a connecting plate, a holding box, a holding groove, a chute, a conductive plate, an insulating pressing plate, a second spring, an alarm, a storage battery, a first wiring terminal and a second wiring terminal. Firstly, due to monitoring alarm design, a medical operator can be reminded that a drainage bottleis full of a drainage liquid in time, convenience can be brought to the medical operator to handle the situation in time, and the security of ventricular drainage of a patient can be ensured; secondly, due to a cooperation effect of a lifting drainage drip cup holding mechanism, not only is the drainage drip cup placed at a higher place, but also the height of the drainage drip cup can be adjusted by the medical operator according to clinical practical situations, finally by adopting the mode, the stability and the security of ventricular drainage of the patient can be greatly improved, the burden of the medical operator is also alleviated, and clinical popularization and application can be facilitated.

The invention discloses a method for treating low-concentration wastewater containing strong complex nickel. Firstly, the pH of the nickel-containing wastewater is adjusted to be neutral, and after being pretreated by a multi-media filter and an activated carbon filter, the nickel-containing wastewater is processed in a reverse osmosis system; after adjusting of the pH of concentrated water treated by the reverse osmosis system, iron-carbon microelectrolysis and Fenton reaction are sequentially performed; an oxidizing agent is added to effluent after the Fenton reaction; a reducing agent is added into the effluent after the oxidation; the effluent after the reduction reaction is added with an alkali and then precipitated; after adjusting of the pH of supernatant obtained after the precipitation, the supernatant is adsorbed by selective chelate ion exchange resin and discharged. The method improves the pertinence and reaction efficiency of subsequent complexing destructive measures; thewater production rate is high, and the membrane pollution degree is low; the total nickel content of the final effluent can stably reach a level less than 0.1 mg / L; and the operating cost is low.

The invention discloses a pavement drainage structure. According to the technical scheme, the pavement drainage structure is characterized in that a protection cover is arranged at a wellhead of eachdrainage well, water leaking holes are formed in the protection cover, drainage pipelines are connected on side walls of the drainage well, a filter part is arranged in the connected position of eachdrainage pipeline and the drainage well, and a guiding mechanism for guiding rainwater to the drainage pipelines is arranged in the drainage well and can transfer garbage filtered out by the filter parts, so that the filter parts cannot be blocked by the garbage. The pavement drainage structure has functions of low probability of blockage and stable drainage efficiency.

The invention relates to a reservoir flood discharge device which comprises a dam, a first gate, a connecting rod, a transmission device and a movable gate. The dam is arranged at an exit of areservoir and connects mountains at both ends of the reservoir. The dam comprises a dam body and a dam bottom, and a water drainage hole is formed inthe lower part of the dam body, the dam body is provided with a first abrasion resistance ring, a connecting rodis fixed to the upper part of the first gate, the transmission device comprises a worm wheel, a worm, a shell and a hand wheel, and the edge of theworm wheel is connected with a stud, aflood discharge hole is formed in the upper part ofthe dam body, andthe movable gate is hinged to the step surface in the flood discharge hole; and the movable gate is hinged to a hinge shaft, and the hinge shaft is a shaft body inclined from the front upper direction and the lower part in a vertical surface.The problems that an existing reservoir flood discharge device must rely on a power supply, a driving device and testing equipment to enable a gate to flexibly adjust the water level,it is necessary to repeatedly inspect and monitor the water level ifthe gate isopened and closed by using manpower to adjust the water level,the gate opening and closing is adjusted according to the water level, and manpower is wasted are solved.

The invention discloses an anti-water-accumulation floor drain. The floor drain comprises a shell, a connection pipe is communicated with the lower end of the shell, and a thread is arranged at the exterior of the connection pipe; a first annular groove is formed in the upper end of the inner side wall of the shell, a cover plate is arranged at the upper end in the shell, and each end of the coverplate extends in the first annular groove. The anti-water-accumulation floor drain has the advantages that a second water outlet mechanism can be automatically started when a filter plate is blocked,so that accumulated water enters the shell from the edge of the upper end of the shell, the accumulated water flows out from the shell and the connection pipe through a filter cover, and accordinglystable drainage of the floor drain continues; since the area of the opening of the upper end of the shell is larger than that of the filter plate, the drainage flower is increased, the drainage efficiency is improved, and the drainage function and the filter function achieve a balance; the filter cover can filter impurities to the greatest degree during effective drainage, secondary blocking is avoided, and the floor drain can be used multiple times and is convenient and easy to use and install again.

The invention relates to the technical field of water and soil loss monitoring equipment, and specifically provides an automatic muddy water weighting instrument for a water and soil loss monitoring device. The instrument comprises a weighting bottle body, a water inlet formed in the top part of the weighting bottle body, and a first siphon device arranged in the weighting bottle body, wherein the water inlet of the first siphon device is clung to the bottom part of the weighting bottle body; a weighting sensor is arranged on the weighting bottle body. With the adoption of the instrument, the data can be measured immediately, so that the working hours can be greatly saved; the observing precision is superior to the original manual observing; the measured data are close to the actual water and soil loss condition to the maximum; the instrument has a wide application prospect and popularization value in the industry.

The invention discloses a ventricular drainage tube postoperative anti-disengagement device and a use method. The ventricular drainage tube postoperative anti-disengagement device comprises a drainagebox fixing device and a drainage tube fixing device. The drainage box fixing device comprises an installation base. A telescopic sleeve plate is fixedly connected to the installation base. The end, away from the installation base, of the telescopic sleeve plate is fixedly connected with a limiting device. Two symmetrical installation screws are arranged on the installation base and located on thetwo sides of the telescopic sleeve plate respectively. The drainage tube fixing device comprises a first head fixing belt. Two symmetrical second head fixing belts are fixedly connected with the sidewall of the first head fixing belt. A tube clamping device is arranged between the two second head fixing belts, and comprises a first clamping plate and a second clamping plate. Through the cooperation of the drainage box fixing device and the drainage tube fixing device, the drainage box and the drainage tube are stably fixed respectively, and it is ensured that the drainage tube can be stablyused for continuing to conduct drainage after a patient undergoes ventricular surgery.

The invention discloses a drainage structure of a municipal road and a construction method of the drainage structure. The drainage structure comprises a drainage well which is arranged between a motor way and a non-motorized vehicle lane, wherein a grating component is arranged at the well mouth of the drainage well; the grating component is of a cylindrical structure and the latticed component (the grating component) is transversely arranged at the well mouth of the drainage well; the grating component is arranged in a mode of being partially higher than the well mouth of the drainage well; the sides, close to the motor way and the non-motor way, of the edge of the well mouth of the drainage well are provided with concave accommodating grooves, and the sides, facing the well mouth, of the accommodating grooves are connected to the well mouth; the parts, connected to the well mouth, of the accommodating grooves are provided with filter screen frames; the filter screen frames are in clearance fit with the surface of the grating component; the grating component comprises a central shaft and blades which are connected between the outer circle of the grating component and the central shaft; the central shaft is rotatably connected to the inner wall of the drainage well; and two ends, in an axial direction of the grating component, of the blades are provided with hollowed-out parts. The drainage structure provided by the invention has the characteristics of being not easy to block and stable in drainage effect.

The invention discloses an urban road pavement structure which comprises a drainage layer, a support layer, a foundation layer, a drainage degradation layer and a drainage cooling system. The supportlayer is directly paved on an urban road foundation and comprises a plurality of laminated metal perforated plates and gravel arranged between the metal perforated plates in a filling manner; the drainage layer is arranged below the support layer and is inserted into the urban road foundation; the foundation layer is arranged above the support layer and sinks along the middle portion of the uppersurface of a road in the length direction in an inclined downward manner, the longitudinal section of the foundation layer is in an isosceles trapezoid shape with the large upper portion and the smalllower portion; the drainage degradation layer is arranged above the foundation layer, and the upper surface of the drainage degradation layer is horizontal; and the drainage cooling system comprisesa heat exchange tube, a heat exchange main chamber, and a vertical tube, a pipe cap and a water storage tank; the middle portion of the upper portion of the water storage tank is provided with an opening, and the opening is opposite to the sinking position of the upper surface of the foundation layer. The pavement structure has good stability, has good water permeability and water storage performance and has high pavement high temperature deformation resistance.

The invention provides an instant heating water dispenser, belongs to the technical field of water dispensers, and aims to solve the technical problems that an existing instant heating water dispenser unstably discharges water and has potential safety hazards. The instant heating water dispenser comprises a heating device, a water tank and an external water source, at least one quartz tube is arranged in the heating device, the water tank is provided with at least two independent chambers and a steam outlet, one chamber provides cold water for the heating device to heat, the other chamber is used for receiving hot water heated by the heating device and separating steam and water, the steam is emitted from the steam outlet after the steam and the water are separated, and the external water source provides cold water for the water tank. The instant heating water dispenser has the advantages of steam-water separating effect and water discharge stability.

Compared with the prior art, the scheme of the invention relates to a kayak, which comprises a kayak body, the place, which is used for containing an athlete, of the kayak body is formed into an interior, a low-lying water accumulation place is formed at the place, in which water can be easily accumulated, of the interior, and the kayak also comprises a sucker, an air bag, a drain tube, a liquid accumulation chamber and an air tube; after being squashed, the air bag can be self-restored, so the air bag can be compressed when stressed, and can be self-expanded after stress is removed; due to the position of the air bag, the air bag can be alternately compressed and self-expanded in the sliding process of the kayak; the front end of the sucker is connected with the low-lying water accumulation place, and the tail end of the sucker is connected with the liquid accumulation chamber; one end of the drain tube is connected with the bottom of the liquid accumulation chamber, and the other end of the drain tube stretches out of the kayak body; the front end of the air tube is connected with the liquid accumulation chamber, and the tail end of the liquid accumulation chamber is connected with the air bag. The scheme of the invention has the following advantages that water can be drained as the kayak advances, moreover, the drainage efficiency is high, and the drainage performance is stable.

The invention discloses a floor drain capable of preventing hair blockage. The floor drain comprises a conical drain body, wherein the conical drain body comprises a water leakage cavity; a drain pipeis inserted into the lower end of the conical drain body; the upper end of the drain pipe is higher than the inner bottom surface of the water leakage cavity; a support frame is mounted on the conical drain body; a filter cover covers the support frame; a rotating shaft is rotationally mounted in the center of the support frame; a shaft sleeve is mounted at the upper end of the rotating shaft; aplurality of cleaning rods are symmetrically mounted on the shaft sleeve; and the lower end of each cleaning rod is positioned between the outer wall of the upper end of the drain pipe and the inner side wall of the water leakage cavity. The cleaning rods are driven by water flow and swirl vanes to rotate to collect hair in the water leakage cavity, the hair is prevented from entering a sewer pipethrough the drain pipe, and the anti-blocking effect is improved; and by means of the design that the upper end of the drain pipe is higher than the bottom surface of the water leakage cavity, an undisturbed vortex is formed in the water leakage cavity, the drainage speed is increased, and the collected hair is conveniently cleaned out of the water leakage cavity by the aid of a first movable rodand a second movable rod.

The invention provides a solar street lamp which comprises a hollow lamp post, a lamp arm, a lamp bulb, a solar component, a horizontal box and a box cover, wherein the lamp arm is arranged on one side of the lamp post, the lamp bulb is mounted on the lamp arm, the solar component can supply power for the lamp bulb, and the box cover is arrange don the box. A first connecting hole is formed in thebottom wall of the box in a penetrating manner, a second connecting hole directly facing the first connecting hole is formed in the box cover in a penetrating manner, the upper end of the lamp post sequentially penetrates the first connecting hole and the second connecting hole, the lamp post is hermetically and fixedly connected with the box, the box cover is vertically provided with a pluralityof water inlet micro-holes, a water drainage hole is formed in the side wall of the lamp post, a box inner cavity is communicated with a lamp post inner cavity through the water drainage hole, and awater outlet is formed in the side wall of the lower end of the lamp post in a penetrating manner, the lamp post inner cavity is communicated with the outside through the water outlet, a gas inlet isformed in the upper side wall of the lamp post in a penetrating manner, a fan is mounted at the gas inlet, gas can be led into the lamp post by the fan, the solar component supplies power for the fan,and a controller for controlling opening and closing of the water outlet is arranged on the lamp post. The solar street lamp is stable in working.

A pneumatic tire tread that maintains a good level of water drainage performance up to the final stage of wear of a tread part formed with a plurality of flexible fences which are disposed inside at least one main groove extending from the bottom surface of the main groove and obstructing at least 70% of the cross-sectional area of the main groove, the flexible fences comprising an inside portion having a connecting part which is connected to the main groove, and an outside portion which is radially outside a predetermined height D1 from the bottom surface of the main groove, and the average angle of inclination of the inside portion with respect to a line perpendicular to the surface of the tread part in contact with the road surface is greater than the average angle of inclination of the outside portion.

The invention discloses a surface treatment device for furniture production. The surface treatment device comprises a working table, wherein a polishing device is fixedly connected with the left sideof the top of the working table. Through cooperative application of the working table, the polishing device, an air cylinder, a movable clamping plate, a sliding block, a first sliding chute, a fixedclamping plate, a transmission case, a motor, a rotating block, a swivel pin, a movable block, a movable column, a spring, a fixed block, a movable pin, a transmission block, a first transmission column, a sliding sleeve, a second sliding chute, a positioning column, a second transmission column, a suction hood, an opening groove, a dust treatment box, an exhaust fan, a hose, a dust exhausting pipe, a filtering sleeve, a water filling pipe, a non-slip mat, landing legs, an antiskid base, a sealing ring, a drain pipe, a sealed cap and a control valve, the problem that the existing polishing device does not have the dust absorption function is solved. The surface treatment device has the advantage of absorbing dust, ensures the working environment of a user and avoids the problem that the producing and processing quality of furniture is affected.

The invention relates to a soft soil foundation heavy traffic road subgrade, which is characterized in that the overall thickness of a subgrade working area is 150cm to 200cm, and is sequentially provided with slag, steel-plastic grids, broken stone, lime soil, cement lime soil and cemented soil. A subgrade processing method under a soft foundation heavy traffic condition is determined according to the depth of the working area, the subgrade within the depth of the working area is processed by sequentially paving the slag, the steel-plastic grids and the broken stone from bottom to top (the thickness of the slag is 40cm to 60cm, the thickness of the steel-plastic grid is 1cm to 3cm, and the thickness of the broken stone is 20cm to 40cm), and then the lime soil which is 20cm to 60cm thick, the cement lime soil which is 20cm to 60cm thick and the cemented oil which is 20cm to 40cm thick are paved. The subgrade has the advantages of high strength, good stability, good duration and the like, and the expense of the road in the full-service-life period can be remarkably reduced. The invention relates to an environment-friendly road design method.

The invention discloses a drainage structure of a municipal road and a construction method of the drainage structure. The drainage structure comprises a drainage well which is arranged between a motor way and a non-motorized vehicle lane, wherein a grating component is arranged at the well mouth of the drainage well; the grating component is of a cylindrical structure and the latticed component (the grating component) is transversely arranged at the well mouth of the drainage well; the grating component is arranged in a mode of being partially higher than the well mouth of the drainage well; the sides, close to the motor way and the non-motor way, of the edge of the well mouth of the drainage well are provided with concave accommodating grooves, and the sides, facing the well mouth, of the accommodating grooves are connected to the well mouth; the parts, connected to the well mouth, of the accommodating grooves are provided with filter screen frames; the filter screen frames are in clearance fit with the surface of the grating component; the grating component comprises a central shaft and blades which are connected between the outer circle of the grating component and the central shaft; the central shaft is rotatably connected to the inner wall of the drainage well; and two ends, in an axial direction of the grating component, of the blades are provided with hollowed-out parts. The drainage structure provided by the invention has the characteristics of being not easy to block and stable in drainage effect.

A pneumatic tire tread that maintains a good level of water drainage performance up to the final stage of wear of a tread part formed with a plurality of flexible fences which are disposed inside at least one main groove extending from the bottom surface of the main groove and obstructing at least 70% of the cross-sectional area of the main groove, the flexible fences comprising an inside portion having a connecting part which is connected to the main groove, and an outside portion which is radially outside a predetermined height D1 from the bottom surface of the main groove, and the average angle of inclination of the inside portion with respect to a line perpendicular to the surface of the tread part in contact with the road surface is greater than the average angle of inclination of the outside portion.

The invention relates to a fabricated empty box inclined retaining wall. The fabricated empty box inclined retaining wall comprises an upper-layer box, a middle-layer box and a lower-layer box, wherein conical heads are arranged on the two sides of the outer wall of the bottom of the upper-layer box, a sliding groove is formed in the inner wall of one side of the upper-layer box, a clamping sliding block is arranged on the inner wall of the sliding groove, and the clamping sliding block and the sliding groove are used cooperatively; grooves are formed in the two sides of the outer wall of the top of the middle-layer box, the grooves are matched with the conical heads at the bottom of the upper-layer box, a sliding groove is formed in the inner wall of one side of the middle-layer box, a clamping sliding block is arranged on the inner wall of the sliding groove in the middle-layer box, the clamping sliding block on the middle-layer box and the sliding groove in the middle-layer box are used cooperatively; and grooves are formed in the two sides of the outer wall of the top of the lower-layer box, and the grooves in the lower-layer box are matched with conical heads on the middle-layer box. The fabricated empty box inclined retaining wall has the technical effects of simplicity and high efficiency in installation, strong pertinence and stable effect.

The invention relates to a disturbance compaction method for high-sensitivity natural sedimentary soft clay foundations and belongs to the technical field of building foundation treatment. According to the method, rapid disturbance and vacuum pre-compaction are combined to perform compaction treatment on high-sensitivity natural sedimentary soft clay foundations. The method comprises the steps of foundation soil rapid disturbance, drainage board insertion, pipe connection, covering and sealing and vacuum negative-pressure drainage. Firstly, an original structure of the soil mass is destroyed in advance through rapid disturbance, and secondly, negative pressure is created in soil layers to be treated through drainage boards to achieve drainage consolidation. The method is capable of improving construction efficiency and consolidation of high-sensitivity natural sedimentary soft clay foundations, simple and reliable and economic and practical.

The invention provides a variable-liquid-level periodic uniform-flow water outlet device. The variable-liquid-level periodic uniform-flow water outlet device comprises a flow outlet pipe, a guide rail, magnetic valves and a floating body triggering cylinders; the floating body triggering cylinders sequentially make contact with and push the magnetic valves at the corresponding positions to swing along with descending of the liquid level, so that transverse flow pipes at the corresponding positions are opened, the pushing force to the magnetic valves at the upper positions is cancelled to reset the transverse flow pipes, so that water flows out of a water outlet of a water tank periodically while the liquid level continuously descends, drainage is stable, and periodic equal-flow drainage can be achieved. The floating body triggering cylinders sequentially make contact with and push the magnetic valves at the corresponding positions to swing along with descending of the liquid level, so that the transverse flow pipes at the corresponding positions are opened to achieve periodical uniform flow drainage, an external power source does not need to be additionally provided, power supply is stable, and the power cost and the maintenance cost are effectively reduced; and periodic uniform water outlet can be achieved, the application range is wide, uniform and stable water outlet is achieved, and meanwhile the unexpected influence possibly caused by continuous water outlet is avoided.

The invention provides a granulating water filling device and a granulating system, and relates to the technical field of granulating water filtering. A first water inlet pipe of the granulating waterfilling device is communicated with the upper part of a first filter, and a second water inlet pipe is communicated with the upper part of a second filter; a first water outlet pipe and a second water outlet pipe are communicated with the first filter and the second filter respectively; one end of a first drain pipe is communicated with the lower part of the first filter, and the other end is communicated with a main drain; one end of a second drain pipe is communicated with the lower part of the second filter, and the other end is communicated with the main drain; valves are arranged on thefirst water inlet pipe, the second water inlet pipe, the first water outlet pipe, the second water outlet pipe, the first drain pipe, the second drain pipe and the main drain respectively. By means ofthe arrangement, safety and stability are realized during switching between the two filters; when the reserve filter is filled with water, less influence is produced on pressure and flow of a granulating water system; besides, transformation of the conventional device is easy to realize.

The invention discloses an industrial sewage treatment machine, and relates to the field of machines. The industrial sewage treatment machine comprises a shell, a flow equalizing assembly, a power generator, a filter assembly and a sludge collection assembly, the flow equalizing assembly comprises a rotating disc, a dialing piece, a water shield and a flow equalizing plate, the filter assembly ismounted in the shell and located below the flow equalizing plate, the filter assembly is used for filtering sewage, the side surface of the filter assembly is connected with a water outlet tube, and the sludge collection assembly is mounted at the bottom of the shell, is used for collecting and discharging sludge, and concretely includes a sludge collection cylinder, a collection box, a separatorplate and a seal cover. The machine realizes the conversion and utilization of the kinetic energy of the sewage, realizes the preliminary purification treatment of the sewage through stably guiding the sewage into the shell by means of the water shield and the flow equalizing plate which are designed with special structures, and achieves miniaturization and small occupied space.

The invention discloses a plate evaporator type MVC heat pump evaporation system. The system comprises a feed preheating pipeline, an evaporation circulation pipeline, a compressing pipeline, a condensing pipeline, a water spray pipeline, a water discharge pipeline and a material discharging pipeline. The system is designed to recycle steam in order to realize energy saving, and can effectively protect a compressor and realize the automatic control adjust of the system. The evaporation system is mainly used for evaporation of chemical industry aqueous solutions, evaporation of salt forming industrial salt solutions, concentration of environmentally-friendly industrial wastewater, and other efficient evaporative concentration of clean liquids; and compared with traditional evaporation systems, the system disclosed in the invention has the obvious advantages of energy saving and great economic benefit.

A cerebrospinal fluid drainage monitoring device disclosed by the present invention comprises a sickbed, a connecting plate and a monitoring assembly body, the sickbed is internally provided with a connecting rod, the right end face of the connecting rod is provided with a handle, the outer side of the connecting rod is provided with a connecting block, and the upper end face of the connecting block is fixedly connected with a mounting rod. A supporting rod is arranged at the left end of the sickbed, a connecting block is arranged on the outer side of the supporting rod, a connecting groove is formed in the inner side of the connecting block, a limiting rod is installed in the connecting block, a drainage bottle is connected to the outer side of the connecting block, a catheter is arranged at the lower end of the drainage bottle, and a supporting frame is arranged at the left end of the supporting rod. And a monitoring assembly body is arranged at the upper end of the supporting frame. According to the cerebrospinal fluid drainage monitoring device, the speed can be monitored in real time, constant pressure and constant speed during drainage can be guaranteed, the head of a patient is fixed, long-time stable drainage can be determined, and meanwhile the height of a drainage bottle can be conveniently adjusted.

The invention discloses a disposable infusion apparatus. A regulation assembly comprises a pressure regulating cavity corresponding to a liquid injecting opening and a pressure stabilizing cavity corresponding to a liquid draining opening, the pressure regulating cavity communicates with the pressure stabilizing cavity through a regulation opening, and the regulation assembly also comprises a regulation plug of which the regulation end is inserted into the pressure regulating cavity and the pressure stabilizing end is inserted into the pressure stabilizing cavity. The area of the cross sectionof the pressure stabilizing end is greater than that of the regulating end, when flow at the liquid injection opening is increased, intensity of pressure of the regulation end is increased along withincrement of the pressure of the pressure regulating cavity, the pressure of the pressure stabilizing cavity is increased until the pressure of the pressure stabilizing cavity and the pressure of thepressure regulating cavity are consistent, if the pressure of the pressure stabilizing cavity is increased, the intensity of pressure of the pressure stabilizing end is not obviously changed, the flow of the liquid draining opening is unchanged, and the liquid draining speed of the liquid draining opening is stable. When the flow at the liquid injection opening is reduced, the intensity of pressure of the regulation end is reduced along with reduction of the pressure of the pressure adjusting cavity, the pressure of the pressure stabilizing cavity is reduced until, the pressure of the pressure stabilizing cavity and the pressure of the pressure adjusting cavity are consistent, and if the pressure of the pressure stabilizing cavity is reduced, the intensity of pressure of the pressure stabilizing end is not obviously changed, so that the flow of the liquid draining opening is maintained unchanged, and the liquid draining speed of the liquid draining opening is stable. Stable liquid drainage can be realized.

The present invention discloses a kind of electric desalting and dewatering tank for use in oil field and oil refinery, and aims at reducing oil in exhausted water of electric desalting and dewatering tank. The electric desalting and dewatering tank has inside the tank at least three axial water exhaust stabilizing devices in the bottom, and each of the water exhaust stabilizing devices consists of metal plate and lattice. The metal plate is perpendicular to the tank axis and has two ends connected to the inner wall of the tank, and there is gap between the plate and the tank wall for deposited water to flow through. The lattice set in the top of the metal plate consists of metal strips perpendicular to the metal plate. The present invention is used mainly for desalting and dewatering raw oil.