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32 results about "Pressure relief equipment" patented technology

Full-hydraulic drill type pressure relieving equipment with double drill bits and pressure relieving method

The invention discloses full-hydraulic drill type pressure relieving equipment with double drill bits and a pressure relieving method. The full-hydraulic drill type pressure reliving equipment and the pressure relieving method are applicable to tunneling operation on mine roadways with outstanding pressures or coal seam stress concentration. The full-hydraulic drill type pressure reliving equipment comprises a drilling tool assembly, an embracing claw assembly, an obliquity adjusting assembly, a main unit, a cooling assembly, anchor rod assemblies and a hydraulic assembly. The full-hydraulic drill type pressure relieving equipment and the pressure relieving method have the advantages that supporting and fixing effects can be realized by anchor rods, drilling and production angles can be adjusted by the obliquity adjusting assembly, and drilling pipes can be changed over, so that pressure relieving holes can be drilled and can collapse after drilling tools are withdrawn, and coal seam stress can be relieved; the holes can be stably formed and are high in drilled depths, pressures of coal can be sufficiently relieved, and high power phenomena such as large coal blasting during wall caving and coal breaking of the roadways can be eliminated; the contour lines of the roadways and coal and rock outside the roadways are complete and stable after the pressures are relieved, accordingly, the roadway construction cost and the dangerous level can be lowered, and the roadway tunneling efficiency can be improved; the full-hydraulic drill type pressure relieving equipment is hydraulically controlled, and accordingly the labor intensity can be relieved for workers; tunneling equipment such as tunneling machines can conveniently enter the roadways to work in the roadways owing to a narrow body of the full-hydraulic drill type pressure relieving equipment, and the flexibility of drilling machines can be improved by crawler travel units.
Owner:CHINA UNIV OF MINING & TECH

Pressure relief valve with rapid cover opening function

The invention discloses a pressure relief valve with a rapid cover opening function, and belongs to the technical field of automatic pressure relief equipment. The pressure relief valve with the rapidcover opening function comprises a valve base, a valve cover, electromagnets, a pressure sensor and a PLC; one end of the valve cover realizes opening and closing connection with the valve base through an opening and closing mechanism; a pair of lock catches is arranged at the other end, corresponding to the opening and closing mechanism, of the valve cover; the lock catches are provided with iron cores in the middles of the front ends of the lock catches; the electromagnets are arranged on the valve base and correspond to the iron cores; the PLC controls the electromagnets to be powered on or off according to pressure data detected by a pressure sensor; the electromagnets attract the iron cores when being powered on, so that the valve cover is tightly fastened to the valve base; and theelectromagnets lose magnetism when being powered off, and at this time the valve cover is opened by pressure in a pressure relief channel. The pressure relief valve has the advantages that air leakageand pressure relief can be realized by quickly opening the cover, so that explosion caused by too high air pressure in a cabin is avoided and the safety is improved; and the pressure relief valve canbe reused after the completion of pressure relief work, so that the waste of resources and articles is reduced greatly.
Owner:CHANGSHU HAIZHOU ELECTRIC CO LTD

Explosion-proof valve

ActiveCN111946877ARealize repeated explosion protectionGuaranteed independenceEqualizing valvesSafety valvesEngineeringPhysics
The invention discloses an explosion-proof valve. The explosion-proof valve comprises a sliding block, wherein vent holes are formed in the sliding block; a body structure, wherein the sliding block and the body structure are in sliding fit, the body structure is provided with a vent channel communicating with the vent holes, and the body structure is suitable for being mounted on equipment to besubjected to pressure relief; and an elastic piece structure, wherein the elastic piece structure is provided with a vent port and elastic pieces capable of being elastically opened, the vent port communicates with the vent channel, and a vent film is arranged on the vent port. The explosion-proof valve is configured in the manner that when the pressure of an inner cavity of the equipment to be subjected to pressure relief is larger than preset pressure, the sliding block ejects the elastic pieces to form vent gaps, and the vent gaps communicate with the inner cavity of the equipment to be subjected to pressure relief. According to the explosion-proof valve, the ventilation and waterproof effects can be achieved, when thermal runaway happens, the sliding block ejects the elastic pieces toform the vent gaps, the safety and explosion prevention can be achieved, the elastic pieces can restore to original positions after pressure relief, and the explosion-proof function is repeatedly used.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Wind energy collecting system for expressway

The invention discloses a wind energy collection system for an expressway, which comprises an isolation belt, a wind energy collection device, a wind energy collection device and a wind energy collection device, the air storage cylinder is mounted at the bottom of the isolation belt, and an air storage cavity is formed in the air storage cylinder; the flow guide frame is fixed to the outer surface of the isolation belt, and a blocking net is arranged in the flow guide frame; the fixing seats and the air storage cylinders are alternately distributed; the vertical rod is upwards inserted into the isolation belt; the top of the baffle plate is hung on the fixed shaft; the electric equipment is connected with the fixed seat through a wire; and the pressure relief equipment is connected with the air storage cylinder through a main pipeline and a branch pipeline. According to the wind energy collecting system for the expressway, wind power is guided into the cavity through the guide frame, the pressure in the cavity is increased, and therefore the included angle of the baffles is reduced, the wind power conveniently enters the air storage cylinders through the communicating holes, the wind power blows the films in the air storage cylinders, and the films rub against one another to generate electric energy.
Owner:杨书彦

Sludge waste gas comprehensive treatment system and operation method thereof

The invention discloses a sludge waste gas comprehensive treatment system and an operation method thereof. The system comprises a monitoring host, the monitoring host is in bidirectional connection with the control host, the sludge treatment system layer and the waste gas treatment system layer, the sludge treatment system layer and the waste gas treatment system layer are communicated with the recovery system layer through a conveying device, the sludge treatment system layer is communicated with the waste gas treatment system layer through a waste gas connecting pipeline, and the sludge treatment system layer sequentially comprises a sludge drying pool, sludge crushing equipment and sludge incineration equipment. According to the sludge waste gas comprehensive treatment system and the operation method thereof, waste gas in the sludge treatment process is collected through the waste gas storage equipment, and meanwhile, the waste gas storage equipment can monitor the waste gas, the safety problem is prevented, and the pressure relief equipment can prevent the problem of safety accidents caused by excessive pressure of the waste gas.
Owner:杭州国泰环保科技股份有限公司

Impact ground pressure intelligent prevention and control system and control method

The invention discloses an impact ground pressure intelligent prevention and control system and a control method. The impact ground pressure intelligent prevention and control system comprises a shockwave detector, an impact ground pressure prevention and control controller and pressure relief equipment, wherein the shock wave detector is arranged in a detection region of a mine and is used for performing shock wave detection in the detection region according to a shock wave detection instrument sent by the impact ground pressure prevention and control controller; the impact ground pressure prevention and control controller is connected with the shock wave detector through a relay station and is used for controlling the pressure relief equipment to work according to shock wave data received from the shock wave detector; the pressure relief equipment is connected with the impact ground pressure prevention and control controller through the relay station and is used for performing pressure relief operation in the detection region. The shock wave detector and the pressure relief equipment automatically complete the shock wave detection work and the pressure relief work; the artificial participation is not needed; the casualties in the impact ground pressure prevention and control work are fundamentally avoided; the influence of human factors on the prevention and control work iseliminated; the prevention and control efficiency is improved.
Owner:TIANDI SCI & TECH CO LTD

Oil-immersed transformer release valve capable of preventing oil oxidation

The invention relates to the field of transformer pressure relief equipment, in particular to an oil-immersed transformer release valve capable of preventing oil oxidation. The technical problems that when a pressure relief valve is replaced, the environment in an oil tank cannot be isolated from the outside, the pressure relief valve is connected with the oil tank through a bolt, and the sealing effect between the pressure relief valve and the oil tank is poor are solved. An oil-immersed transformer release valve capable of preventing oil oxidation comprises a partition mechanism, a sealing mechanism, a low-voltage induction mechanism, an identification mechanism and the like, the sealing mechanism is arranged on the upper portion of the partition mechanism, the low-voltage induction mechanism is arranged above the sealing mechanism, and the identification mechanism is arranged on the upper portion of the low-voltage induction mechanism. The effect of separating the environment in the oil tank from the external environment is achieved through the separating mechanism, the effect of releasing the pressure in the oil tank is achieved through the low-pressure sensing mechanism, the better sealing effect is achieved through the sealing mechanism, and the effect of limiting the marking rod is achieved through the marking mechanism.
Owner:STATE GRID CORP OF CHINA +2

VR technology oriented multi-mode experience fitness equipment

The invention relates to the technical field of VR (Virtual Reality) fitness, in particular to VR technology oriented multi-mode experience fitness equipment. The equipment comprises an experience table, a jogging area, a massage area and a riding area are arranged in the experience table, movable supporting pipes are installed on the two sides of the experience table respectively, jogging equipment is installed in the jogging area, hidden massage equipment is installed in the massage area, riding equipment is installed in the riding area, and foldable pressure relief equipment is installed atthe tops of the supporting pipes. According to the invention, a user wearing a VR eyeshade does jogging exercise on the jogging equipment or does riding exercise on the riding equipment or beats thepressure relief equipment to relieve pressure, the user is in a virtual environment in the process, and by using all the equipment on the experience table, the user can feel the integration of the virtual and real worlds, the interestingness of exercise is improved, the exercise time is prolonged, and the exercise is promoted to achieve a good effect.
Owner:六安逸风羽信息科技有限公司

Pressure tank

The invention discloses a pressure tank, and relates to the technical field of high-pressure storage equipment. The pressure tank comprises a pressure tank body and pressurizing / depressurizing equipment, the pressure tank body comprises a tank body, an inner barrel body and a cover body, one end of the tank body and one end of the inner barrel body are opened, the tank body arranged outside the inner barrel body in a sleeving mode, and the openings of the tank body and the inner barrel body are arranged in the same direction. The cover body is detachably connected to the tank body and can sealthe inner barrel body and the tank body, and the pressurizing / depressurizing end of the pressurizing / depressurizing equipment can pressurize or depressurize the interior of the inner barrel body and / or the tank body. A liquid inlet and a liquid outlet are further formed in the pressure tank body, the inner barrel body is made of a corrosion-resistant material, and the tank body is made of a high-pressure-resistant material. According to the pressure tank, the cleanliness of chemicals stored in the pressure tank can be improved, and the service life of the pressure tank can be prolonged.
Owner:CHANGZHOU RUIZE MICROELECTRONICS +1

Hydraulic pressure relief device and method

One or more embodiments of the invention provide a hydraulic pressure relief device and method. The hydraulic pressure relief device comprises a cartridge valve and a control unit; the cartridge valve is arranged on an oil pipe connected with an oil tank; the cartridge valve is provided with an oil inlet, an oil outlet and a control cavity; a control piston capable of sliding is arranged in the control cavity, and the control cavity is connected with the control unit; and the control unit is configured to detect the pressure intensity of fluid in the oil pipe through connection with the oil pipe so as to control sliding of the control piston in the control cavity and control a communication state of the oil inlet and the oil outlet. One or more embodiments of the invention detect the fluid pressure in the oil pipe through the control unit, control the communication state of the oil pipe through the cartridge valve according to the pressure, reduce an opening of the oil pipe flowing to the oil tank when the fluid pressure in the oil pipe is high, release pressure stably, increase the opening of the oil pipe flowing to the oil tank after the fluid pressure in the oil pipe is reduced, and release pressure quickly, therefore, the pressure relief efficiency is ensured while the device and operators are protected, and the effects of increasing the speed and efficiency are achieved.
Owner:SHANDONG TAIFENG INTELLIGENT CONTROL CO LTD

A comprehensive treatment system for sludge and waste gas and its operating method

The invention discloses a sludge waste gas comprehensive treatment system and an operation method thereof, comprising a monitoring host, the monitoring host is bidirectionally connected with the control host, the sludge treatment system layer and the waste gas treatment system layer, and the sludge treatment system layer is connected to the waste gas treatment system layer. The waste gas treatment system layer is connected with the recovery system layer through the conveying device, and the sludge treatment system layer is connected with the waste gas treatment system layer through the waste gas connection pipeline. The sludge treatment system layer includes sludge drying tank, sludge crushing equipment and Sludge incineration equipment, the invention relates to the technical field of sludge treatment. The sludge waste gas comprehensive treatment system and its operation method collect the waste gas during the sludge treatment process through the waste gas storage equipment, so as to prevent the waste gas from spreading into the processing environment. At the same time, the waste gas storage equipment can monitor the waste gas to prevent In the event of a safety problem, the pressure relief device can prevent the excessive pressure of the exhaust gas from causing a safety accident.
Owner:杭州国泰环保科技股份有限公司

Pressure relief device for explosion-proof workshop

The invention belongs to the technical field of workshop pressure relief, and particularly relates to a pressure relief device for an explosion-proof workshop. The pressure relief device comprises a plurality of groups of pressure relief modules mounted on a roof. According to the pressure relief device, four designed water leakage-proof shells wrap the positions where four triangular baffles arein contact with one another in a matched mode, in rainy days, due to aging of sealing strips, rainwater which can enter through the positions where the four triangular baffles are in contact with oneanother in the matched mode can flow into mounting blocks on the lower side through the four water leakage-proof shells, and flows into the roof from drainage holes in the mounting blocks to be drained, so that the rainwater is prevented from flowing into the workshop from the positions where the four triangular baffles are in contact with one another in the matched mode, and the pressure relief roof has a rainproof function. Each pressure relief unit is provided with a swing sensing structure, the windward direction can be flexibly and freely adjusted according to the wind direction, and windvibration is reduced.
Owner:陈琇

Stamping ground pressure relief method and equipment

The invention is suitable for the technical field of coal mine excavation and provides stamping ground pressure relief equipment which comprises a supporting device, a pressure relief device and a conveying device. The supporting device comprises a supporting frame, an opening and closing device and anchor rods, the supporting frame comprises an arc-shaped section and a straight edge section, theopening and closing device comprises a fixing base, a rotating plate and a plurality of blocking pieces, a containing space and a moving groove are formed in the fixing base, a limiting groove is annularly formed in the rotating plate, and a limiting column and a fixing column are arranged on the blocking pieces; the pressure relief device comprises a pressure relief drill hole and a blasting part, and the blasting part is located at the tail end of the pressure relief drill hole; the conveying device comprises a bearing plate, a guide rod, a moving rod and a rotating rod, the plurality of anchor rods are arranged on the bearing plate, the width of a guide groove is smaller than the diameter of the anchor rods, the moving rod is vertically connected with the guide rod in a sleeve mode, andan ejection column is arranged on a sliding block and located under the guide groove. Therefore, effective supporting and pressure relief of a rock burst roadway can be achieved through the stampingground pressure relief equipment, and the safety quality of follow-up work is improved.
Owner:SHANDONG DONGSHAN GUCHENG COAL MINE

Direct current switch cabinet used for rail traffic

The invention relates to the technical field of direct current switch cabinets, and discloses a direct current switch cabinet used for rail traffic. The direct current switch cabinet comprises a direct current switch cabinet body. The direct current switch cabinet solves the problem that most pressure relief equipment are arranged on the front face of the switch cabinet to cause the injury of personnel when pressure is relived, the left wall of a hollow cylinder is connected to a first placing box, a second placing box and a third placing box, a ventilation effect is achieved, elongated equipment placing grooves are formed in the left walls of the first placing box, the second placing box and the third placing box in a connecting manner transparently, secondly, a closing plate is connectedonto the left wall of the hollow cylinder, ventilation holes are formed in the outer wall of the closing plate for discharging gas, air pressure is relieved through a hollow block connected with thepressure relief equipment connected to the top of the hollow cylinder, and a ventilation pipe connected to the bottom of the hollow block is used for discharging air pressure.
Owner:JIANGSU ANHE ELECTRIC CO LTD

Intelligent pressure relief equipment for box-type substation

The invention provides intelligent pressure relief equipment for a box-type substation, and relates to the technical field of box-type substations. The intelligent pressure relief equipment for the box-type substation comprises a conventional pressure relief assembly, a pressure relief pipe is arranged in the conventional pressure relief assembly, a fixing rod is welded to the top of the interior of the pressure relief pipe, and the outer wall of the fixing rod is slidably connected with a dust blocking plate. And when the air pressure in the box body is continuously increased, the heat dissipation net can deflect rightwards in the heat dissipation window, so that the effect of automatically releasing the pressure to avoid the explosion accident of the transformer substation when the air pressure in the box-type transformer substation is too high is achieved. And when the air pressure in the box body gradually recovers, a time delay effect can be achieved when hydraulic oil in the second hydraulic groove enters the first hydraulic groove, so that the heat dissipation net is slowly reset to the interior of the heat dissipation window, and the situation that high pressure occurs in the box-type substation again due to the fact that the pressure relief channel is rapidly closed during high-pressure pressure relief is avoided.
Owner:柴祥杰

Chain arm saw type top cutting pressure relief device

The invention discloses a chain arm saw type top cutting pressure relief device. The chain arm saw type top cutting pressure relief device comprises a chassis system, a sliding guide rail system, a sliding platform system and a chain cutter system; the chain cutter system is mounted on the sliding platform system; the sliding platform system is mounted on the chassis system; and the chassis system is used for driving the sliding platform system to move. When the chain arm saw type top cutting pressure relief device is used, the whole equipment is moved to the operation position through the chassis system, then supporting legs at the two ends of the sliding guide rail system stretch out, then the chain cutter system is started, and cutting operation can be achieved; and along with control of a drive assembly, stepping operation of the chain cutter system can be achieved, invalid actions of cutter retreating are reduced, cutter clamping faults are effectively reduced, and the work efficiency is improved. Through cooperation of guide rails and wheels, the linearity of cut seams of the chain cutter system is better; and in addition, wheel assemblies are rotationally connected with a platform through connecting shafts, all the wheel assemblies can make contact with the guide rails, and therefore stability during cutting feeding is guaranteed, and the cutting quality is improved.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Lateral top cutting and pressure relief equipment and top cutting and pressure relief method for coal pillar dam body of underground reservoir

The invention discloses a lateral top cutting and pressure relief equipment and a top cutting and pressure relief method for a coal pillar dam body of an underground reservoir, and belongs to the technical field of underground mining of coal mines. The equipment comprises an upper plate, a bracket bottom plate, a supporting unit, a cutting unit, a cutting movement unit and a pushing unit, whereinthe supporting unit is used for supporting the upper plate to move up and down; the cutting unit is arranged between the upper plate and the bracket bottom plate, a main body upper plate is provided with a cutting receding opening, and the working end of the cutting unit penetrates through the cutting receding opening and extends out of the upper surface of the main body upper plate; the cutting movement unit drives the cutting unit to move and work; and the pushing unit drives the lateral top cutting and pressure relief equipment for the coal pillar dam body of the underground reservoir to move. According to the equipment, on the one hand, stable placement can be ensured during the top cutting and pressure relief operation, on the other hand, the disturbed hanging exposed roof covering rock can be effectively supported in the cutting process through the supporting upper plate, and a good construction environment is provided; and then, the cutting unit can smoothly and orderly cut thehanging exposed roof covering rock, and the equipment moves automatically after the top cutting and pressure relief is finished, so that the roof cutting and pressure relief operation of a lateral hanging exposed roof is ensured to be performed in time.
Owner:CHINA UNIV OF MINING & TECH

Rupture disk protection device

The invention belongs to the technical field of nuclear reactor vapor generator pressure relief protection, and particularly relates to a rupture disk protection device. The rupture disk protection device is used for pressure relief protection when sodium-water reaction occurs in a vapor generator in a sodium-cooled fast reactor. The rupture disk protection device comprises a connection pipe whichis arranged in a cavity formed by connecting a top cover with a shell in a sealing mode; a connection pipe inlet formed in the bottom end of the connection pipe is connected to a base at the bottom end of the shell and used for communicating with the vapor generator and serves as a relief channel for pressure of gas in the vapor generator during sodium-water reaction; the top end of the connection pipe is sealed through a changeable rupture disk; the shell is further provided with a pressure relief outlet for communicating pressure relief equipment, the rupture disk can rupture when the pressure of inner gas reaches the set value, and thus, the gas enters the cavity through the connection pipe and then enters the pressure relief equipment through the pressure relief outlet. The rupture disk protection device can conduct fast pressure relief, prevent accidents from spreading, and is low in maintaining cost and easy to maintain and replace.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Top cutting pressure relief equipment and top cutting pressure relief method

The invention discloses top cutting pressure relief equipment and a top cutting pressure relief method.The top cutting pressure relief equipment comprises a base, a lifting top plate, a cutting board and a lifting rotation driving mechanism used for driving the cutting board to ascend and descend and rotate, the lifting rotation driving mechanism drives the cutting board to rotate and ascend, and the cutting board can selectively stretch out of a first through opening and a second through opening of the lifting top plate; the rock stratum can be subjected to two-way cutting and pressure relief at the same position by adopting one set of top cutting and pressure relief equipment, the occupied space is small, the number of needed personnel is small, and the working efficiency is improved.
Owner:SHENHUA SHENDONG COAL GRP +1

VR technology oriented multi-mode fitness exercise method

The invention relates to the technical field of VR (Virtual Reality) fitness, in particular to a VR technology oriented multi-mode fitness exercise method, which comprises a jogging stage in a joggingarea, a massaging stage in a massaging area, a riding stage in a riding area and a step of beating a sandbag in front of supporting pipes to relieve pressure. According to the invention, a user wearing a VR eyeshade does jogging exercise on jogging equipment or does riding exercise on riding equipment or beats pressure relief equipment to relieve pressure, the user is in a virtual environment inthe process, and by using all the equipment on an experience table, the user can feel the integration of the virtual and real worlds, the interestingness of exercise is improved, the exercise time isprolonged, and the exercise is promoted to achieve a good effect.
Owner:六安逸风羽信息科技有限公司

Explosion-proof valve

ActiveCN111946877BRealize repeated explosion protectionGuaranteed independenceEqualizing valvesSafety valvesEngineeringPhysics
The invention discloses an explosion-proof valve. The explosion-proof valve comprises: a slider, the slider is provided with air holes; a main structure, the slider is slidably matched with the main structure, the main structure is provided with the A ventilation passage connected to the ventilation hole, the main structure is suitable for being installed on the equipment to be pressure relieved; a shrapnel structure, the shrapnel structure is provided with a ventilation port and a shrapnel that can be stretched elastically, and the ventilation opening communicates with the ventilation passage And a gas-permeable film is provided at the vent port; wherein, the explosion-proof valve is configured such that when the inner cavity pressure of the device to be depressurized is greater than a preset pressure, the slider pushes away the shrapnel and forms a vent gap, The air-permeable gap is in communication with the inner cavity of the device to be depressurized. The explosion-proof valve of the embodiment of the present invention can realize the functions of ventilation and waterproof, and when thermal runaway occurs, the slider pushes away the shrapnel to form a breathable gap, which can realize safe explosion-proof, and the shrapnel can return to the original position after the pressure is released, realizing The explosion-proof function can be used repeatedly.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Opposite-direction pressure relief equipment

The invention discloses opposite-direction pressure relief equipment which comprises two pressure relief devices. The upper end of an outer barrel body is closed, and the lower end of the outer barrel body is open. The upper end of an inner barrel body is open, and the lower end of the inner barrel body is closed. A damping body is arranged at the upper end of the inner barrel body and provided with a damping hole and a thin and weak ring groove. A floating piston is arranged in the inner barrel body. A piston is arranged in a pressure storage cylinder. A piston rod penetrates through the top end of the pressure storage cylinder to be connected with the piston. The pressure storage cylinder is arranged in the inner barrel body and connected with the bottom end of the inner barrel body. The piston rod is connected with the floating piston. The two ends of a communicating pipe communicate with a rod cavity and a rodless cavity of the pressure storage cylinder correspondingly. A damping block is fixed in the communicating pipe and provided with small damping holes. The inner barrel body is arranged in the outer barrel body in a sliding mode. The opposite-direction pressure relief equipment is composed of the two pressure relief devices, so that the stroke is greatly increased, and the problems that an existing pressure relief device is short in stroke and cannot provide enough vibration attenuation performance are solved.
Owner:巴南区伟鹏机械加工厂

A double-drill full-hydraulic drill type pressure relief device and pressure relief method

The invention discloses full-hydraulic drill type pressure relieving equipment with double drill bits and a pressure relieving method. The full-hydraulic drill type pressure reliving equipment and the pressure relieving method are applicable to tunneling operation on mine roadways with outstanding pressures or coal seam stress concentration. The full-hydraulic drill type pressure reliving equipment comprises a drilling tool assembly, an embracing claw assembly, an obliquity adjusting assembly, a main unit, a cooling assembly, anchor rod assemblies and a hydraulic assembly. The full-hydraulic drill type pressure relieving equipment and the pressure relieving method have the advantages that supporting and fixing effects can be realized by anchor rods, drilling and production angles can be adjusted by the obliquity adjusting assembly, and drilling pipes can be changed over, so that pressure relieving holes can be drilled and can collapse after drilling tools are withdrawn, and coal seam stress can be relieved; the holes can be stably formed and are high in drilled depths, pressures of coal can be sufficiently relieved, and high power phenomena such as large coal blasting during wall caving and coal breaking of the roadways can be eliminated; the contour lines of the roadways and coal and rock outside the roadways are complete and stable after the pressures are relieved, accordingly, the roadway construction cost and the dangerous level can be lowered, and the roadway tunneling efficiency can be improved; the full-hydraulic drill type pressure relieving equipment is hydraulically controlled, and accordingly the labor intensity can be relieved for workers; tunneling equipment such as tunneling machines can conveniently enter the roadways to work in the roadways owing to a narrow body of the full-hydraulic drill type pressure relieving equipment, and the flexibility of drilling machines can be improved by crawler travel units.
Owner:CHINA UNIV OF MINING & TECH

Integrated intelligent fire-fighting opening electromagnetic valve

The invention provides an integrated intelligent fire-fighting opening electromagnetic valve which comprises a base, the bottom end of the base is provided with an insertion pipe used for being connected with a fire-fighting bottle in an inserted mode, the top end of the base is provided with an integrated block, an integrated hole used for external automatic gas filling is formed in the integrated block in a penetrating mode, and one side of the integrated block is provided with a pressure reduction alarm integrated mounting hole; the integrated block is symmetrically provided with a pressure gauge temperature intelligent integrated mounting hole and a manual pressure relief integrated mounting hole. Compared with the prior art, the electromagnetic valve has the following beneficial effects that a magnetic track pipe seat is inserted into the intelligent control fire fighting equipment in a sliding manner, so that the integrated block can be conveniently mounted on the intelligent control fire fighting equipment; a three-hole plug is inserted into a three-hole socket, power supply for intelligent control fire fighting equipment is facilitated, manual pressure relief equipment is mounted through the manual pressure relief integrated mounting hole, so that the fire fighting electromagnetic valve can be manually opened under the condition of power failure and can be automatically opened under the condition of no power failure, and the practicability is better.
Owner:余姚市舜通电磁阀有限公司
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