66results about How to "No freezing" patented technology

The invention relates to royal jelly. The royal jelly is in the form of water-in-oil type royal jelly micro-capsules which are obtained by microencapsulation of a water-phase material and an oil-phase material in the presence of an emulsifying agent, wherein the water-phase material is fresh and liquid royal jelly. The royal jelly in the form of micro-capsules provided by the invention has the advantages that the flavor and the taste of the royal jelly are improved, ice crystals formed at the temperature of -18 DEG C are small, the royal jelly is easily taken and used, and no loss of functional active ingrediens of the fresh royal jelly can be furthest guaranteed.

A decorative heat-preserved wall board with solar and air heat collection is provided, which comprises a back board, a panel, a rim and an inner cavity. The back board is a shallow box-like heat-preservation sandwich board, an air inlet is provided at the lower part of the box bottom, an air outlet is provided at the upper part of the box bottom, at the air outlet, a solar fan is installed. The power supply of the fan is a solar photovoltaic power generating board at inner side at front of the panel. The panel is a flat glass. Between the panel and the back board, the rim is connected. On the rim, some concave ports for connecting are provided. In the inner cavity enclosed by the panel, back board and the rim, a corrugated heat-absorbing board is fixedly connected on the inner bottom side of the shallow box-like heat-preservation sandwich board. The outer surface of the corrugated heat-absorbing board is provided with a heat-absorbing coating. The inner wall of the corrugated heat-absorbing board is connected with heat-exchanging fins. The inside of the corrugated heat-absorbing board forms a heat-exchanging cavity, which is communicated with the air inlet and the air outlet. The invention greatly reduces the cost of the wall board integrating solar with a building, is easy to maintain, improves the service life and is easy to spread and apply in large area.

The invention relates to an anti-freezing and anti-theft watering gathering and transportation process flow valve bank for an oil well. The anti-freezing and anti-theft watering gathering and transportation process flow valve bank for the oil well comprises a watering pipe, an incoming water total cut-off valve, a thermal washing cut-off valve, a watering one-way valve, a central watering pipe 1, a central casing pipe, a vertical watering pipe, an oil-gas inlet pipe, a central watering pipe 2, a watering regulating valve, an oil return one-way valve, a vertical oil return pipe, an oil return total cut-off valve and an oil outlet pipe. According to the device, the watering pipe is arranged in a gathering and transportation pipeline, waste heat of watering is utilized to perform cyclic heat preservation on the whole valve bank, if maintenance and well shutdown are needed due to faults of an operation, a wellhead device, a Christmas tree and an oil pumping unit, the overall cyclic heat preservation of the valve bank can be still ensured, and freezing blockage can be avoided.

The invention provides an engine coolant concentration automatic regulating device. The engine coolant concentration automatic regulating device comprises a separation device, a concentration branch, a dilution branch and a control system; a separation membrane is arranged in the separation device and divides the space inside the separation device into two parts, namely a concentrated solution area and a solvent area; the concentrated solution area is in series connection with a trunk pipeline; the solvent area is provided with an exhaust port and a drainage port; one end of a concentration branch pipeline is connected with the exhaust port of the solvent area of the separation device, and the other end of the concentration branch pipeline is connected with a water pump; a concentration valve is arranged on the concentration branch pipeline; one end of a dilution branch pipeline is connected with a water outlet of a water storage container, and the other end of the dilution branch pipeline is connected with a coolant circulation loop; a dilution valve is arranged on the dilution branch pipeline; the control system controls the concentration valve and the dilution valve to be opened and closed according to water temperature signals of an engine, outside-car air temperature signals and LLC current concentration signals. The engine coolant concentration automatic regulating device can be used for realizing automatic regulation of engine coolant concentration according to various working conditions and service environments of vehicles.

The invention discloses a vacuum type liquid heating conveying pipeline. The vacuum type liquid heating conveying pipeline comprises a flange plate and an oil conveying pipeline. The oil conveying pipeline is in fixed sealing connection with the flange plate. The oil conveying pipeline is provided with an outer pipeline layer and an inner pipeline layer. A vacuum cavity is formed between the outerpipeline layer and the inner pipeline layer. The outer pipeline layer and the inner pipeline layer are provided with a channel for installing a heating pipe. The channel is in sealed connection withthe outer pipeline layer and the inner pipeline layer. The heating pipe is arranged in a pipeline body of the inner pipeline layer. A gear pump is arranged between a water inlet and a water outlet ofthe heating pipe. The outer pipeline layer is provided with a water tank. The water tank is internally provided with an electric heating pipe. The water inlet and the water outlet of the heating pipeare connected with the water tank. The vacuum type liquid heating conveying pipeline is provided with the heating pipe, the heating pipe can heat petroleum when the petroleum is conveyed for a long distance, the viscosity of the heated petroleum is reduced, the heating pipe in a heating cavity heats the petroleum through hot water, and compared with electric heating for directly heating the petroleum, water heating is safer.

A hydraulic safety valve of an antifreezing oil storage tank is applied to pressure balance of the oil storage tank. A cylinder is welded at the lower of the center hole of an installation flange, a transverse diaphragm plate is welded in the cylinder, a fixing pipe is welded at the upper part of the transverse diaphragm plate, a flame arrester is connected at the top of the fixing pipe, and a breathing pipe is connected at the top of the fire arrester. A supporting rod and an impingement baffle are welded around the center hole of a bottom plate of the cylinder. A central hydraulic guide pipe is welded at the lower part of the center hole of the bottom plate of the cylinder, a metal plate and a liquid storage box are welded on the outer wall of the lower end of the central liquid guide pipe; and an arc-shaped steel plate is welded on the inner wall of the liquid storage box, and a clearance is left between the arc-shaped steel plate and the inner wall of the liquid storage box. a gapis arranged on the wall of the liquid storage box at the outer side of the arc-shaped steel plate. The hydraulic safety valve has the effects of changing the installation positions of the hydraulic safety valve and the fire arrester, sinking the hydraulic safety valve into the storage tank, and utilizing temperature of products in the storage tank to conduct insulation, and further being not frozen.

The invention provides a process for recovering ethane from natural gas. The process comprises the following steps: 1) crude decarburization of natural gas; 2) pressurization of CO2 regeneration gas;3) dehydration of natural gas; 4) recovery of ethane; 5) fractionation of condensate; 6) fine decarburization of ethane. According to the invention, high CO2 (CO2 is more than or equal to 1.4 percent(v / v)) raw material gas is not subjected to CO2 removal, or only preliminary CO2 removal is carried out, and engineering wages and equipment operating energy consumption are greatly reduced.

The invention belongs to the architectural engineering technology field, and particularly relates to a roof gutter system of a material yard arch covering. The roof gutter system of the material yardarch covering comprises a main body structure and a bracket connected with the main body structure, wherein a purlin is fixed on the upper portion of the bracket, a stainless steel gutter is arrangedon the purlin and connected with the purlin, a snow melting device is installed on the lower portion of the stainless steel gutter, and snow stop structures are arranged on two sides of the stainlesssteel gutter. By arranging the snow stop structures on the two sides of the stainless steel gutter, the roof gutter system of the material yard arch covering can prevent that large size accumulated snow blocks on two sides of the covering slip off, and then impact the stainless steel gutter and the covering, enables snow water and small size snow blocks to pass through the snow stop structures andfall into the gutter, can melt ice and snow which fall into the gutter by using heat generated by the snow melting system on the lower portion of the gutter, discharges the molten ice and snow through a downpipe, and guarantees that a whole drainage system can smoothly work in cold icy and snowy weather.

The invention discloses magnetic bead mixed liquid. The magnetic bead mixed liquid is prepared from magnetic beads, protease, a denaturing agent, glycerinum, a buffer agent and a nucleic acid settlingagent. The invention further disclose a nucleic acid preservation method, a nucleic acid extraction reagent and a reagent kit. The components of the magnetic bead mixed liquid are pre-mixed accordingto certain proportions, corresponding volume can be taken for one time when nucleic acid extraction is conducted, the needed components can be uniformed added then, the dosage is more accurate, and operation is more simple; and the packaging cost and transportation cost can be lowered by pre-mixing the components according to the proportions. The magnetic bead mixed liquid can enable the temperature range for preserving the magnetic beads to be wider. The magnetic bead mixed liquid is adopted to serve as a nucleic acid (or carrier particles containing nucleic acid) solvent, extraction of nucleic acid can be monitored when nucleic acid is extracted, the step that a sample is added into the nucleic acid extraction reagent by using a magnetic bead method is saved, and meanwhile, the homogeneity of the concentration of nucleic acid being added among multiple holes can be guaranteed. Nucleic acid can be stably preserved by adopting the magnetic bead mixed liquid.

The invention discloses a central heating system of a solar water heater, which comprises a water tank connected with a heat collector and a sensor for testing water temperature and water amount, wherein the heat collector is connected with a plurality of non-bearing water tanks which are connected with bearing water tank through pipelines; the bottom of the bearing water tank is connected with a hot water pipe and a heating return pipe; the hot water pipe is connected with a shower head of each bath; the heating return pipe is connected with a heating strip of each heating room; the upper part of the non-bearing water tank is connected with a temperature control circulating pipe; and both the hot water pipe and the heating return pipe are communicated with the temperature control circulating pipe. The heating system is automatically controlled, safe and reliable; the outside of the bearing water tank connected with the user terminal is provided with an auxiliary heating device to ensure the stability of the water temperature; the water can be used at any moment; at the same time, the heating system avoids the process of exhausting cold water before using hot water, and saves water resource and user time.

The invention relates to a test probe for monitoring the pore water pressure in frozen soil. The probe includes a clay head, a rigid plastic pipe, a pressure sensor and an adapter. The pressure sensor is connected with the adapter, and the adapter is connected with one end of the rigid plastic pipe through a quick connector. The other end of the rigid plastic pipe is bonded to the clay head. The adapter is provided with an air vent, and a nut is arranged on the air vent. The test probe is stable, reliable and convenient to use, and can be used to monitor the change of pore water pressure in the soil freezing process so as to provide a basis for analyzing the moisture migration and ice condensation process of soil during freezing and thawing.

The invention discloses a fuel gasification and combined cooling heating and power supply system and method for an LNG power driven vessel. The fuel gasification and combined cooling heating and powersupply system comprises an LNG gasification and cooling capacity recovery unit, a main engine waste gas heat recovery unit, a low-temperature Rankine cycle unit, a power generating unit, a surplus cooling capacity recovery unit and a vessel steam, cooling capacity and power supply channel connected among the units. According to the fuel gasification and combined cooling heating and power supply system and method for the LNG power driven vessel, by means of the ingenious design, large-temperature difference heat exchanging of cold fluid and hot fluid is achieved in the LNG gasification processso that thorough gasification can be guaranteed; in the cold energy recovering process, small-temperature different heat exchanging is carried out through the cold fluid and the hot fluid so that thecold energy recovery efficiency can be improved; and the problems of freezing, low efficiency and the like of a traditional gasifier are solved through the unique circular self-evaporation design andcold energy recovering through circular secondary refrigerator. According to the fuel gasification and combined cooling heating and power supply system and method for the LNG power driven vessel, cold energy and waste heat recovery and power cycle generation of the vessel can be carried out at the same time, the cold energy and waste head recovery rate is relatively high, the safety coefficient is relatively large, and the energy conversion utilization efficiency of the LNG power driven vessel is effectively improved.

The invention discloses a heating and heat-insulating type petroleum conveying pipeline assembly which comprises a flange disc and a petroleum conveying pipeline. The petroleum conveying pipeline andthe flange disc are fixedly connected in a sealed mode. The petroleum conveying pipeline is provided with a pipeline outer layer, a pipeline middle layer and a pipeline inner layer. A vacuum cavity isformed between the pipeline outer layer and the pipeline middle layer. A heating cavity is formed between the pipeline middle layer and the pipeline inner layer. A heating pipe is arranged in the heating cavity, and a water injection opening leading to the heating cavity is formed in the outer wall of the pipeline outer layer. The water injection opening is connected with the pipeline outer layerand the pipeline middle layer in a sealed mode. According to the petroleum conveying pipeline assembly, the vacuum cavity is formed between the pipeline outer layer and the pipeline middle layer, a vacuum can effectively prevent temperature spreading, thus, the low temperature cannot be transmitted to the pipeline middle layer, it is ensured that petroleum in the pipeline cannot be frozen, and the anti-freezing effect is achieved on the petroleum; and meanwhile, the heating cavity is formed between the pipeline middle layer and the pipeline inner layer, and it is ensured that the petroleum smoothly flow in the petroleum conveying pipeline.

The invention relates the injection containing propyl benzene glycosides and preparing method. The method comprises the following steps: using labiate as raw material, extracting it, separating it, getting medicinal findings, and getting solution injection or sterilized powder agent for injection. The solution injection contains 10-20mg propyl benzene glycosides per mg, and the sterilized powder agent for injection contains 20-40mg propyl benzene glycosides per mg. The invention has the advantages of high curative effect and quality.

The invention relates to a gas or liquid ultrasonic purification device which comprises a shell, fiber filter pipes, a hard net pipe, an internal support body and an ultrasonic vibration element, the shell is a shell with an input port, a purification output port and a pollution discharge output port, and the fiber filter pipes are arranged in the hard net pipe in a sleeved mode to form a composite filter pipe assembly. The inner support body is provided with an installation space, the composite filter pipe assembly is sleeved and stacked in the installation space in a penetrating mode, the inner support body is sleeved with the shell, and the ultrasonic vibration element is installed on the inner support body. High-frequency ultrasonic vibration energy generated by the ultrasonic vibration element is applied to the internal support body, is fed back to the hard net pipe and then acts on the fiber filter pipes, so that the fiber filter pipes generate high-frequency ultrasonic resonance and internal molecular motion, impurities in gas or liquid do not block capillary pores of the fiber filter pipes and are prevented from being blocked and passivated, the service life is prolonged, the quality and efficiency of filtration and purification are ensured, and the replacement frequency and loss of the fiber filter pipes are reduced.

The present invention is multi-compartment refrigerator with separate temperature control and belongs to the field of refrigerator technology. The refrigerator includes control circuit and compressor, condenser, molecular sieve and liquid storage tank connected successively via pipeline. In the pipeline between the molecular sieve and the liquid storage tank, there are several parallel refrigerating pipelines comprising successively connected solenoid valve, capillary and evaporator. In the control units, at least one has the 'open' control logic of solenoid valve opposite to that of the others. In the pipeline between the evaporator and the liquid storage tank, there is secondary throttle valve installed. The present invention can avoid refrigerating loop blocking caused by strong electric interference to shutting all the solenoid valves, and has good refrigerating effect and high power saving effect.

The invention relates to the technical field of EUV light source heat dissipation systems, in particular to a semiconductor photoetching machine. The machine comprises an electrode sleeve, and an EUV light emitting end is arranged at the axis in the electrode sleeve in a penetrating mode. When purified cooling water passes through a first cooling sleeve arranged on a water inlet pipe, the purified cooling water can enable heat dissipation annular plates to rotate, cold water in a second circulating water pipe is evenly dispersed in a cylindrical water tank, so that cooling water can enter water cooling plates from open annular blocks. The multiple heat dissipation annular plates rotate between the two water cooling plates, and in this way, the indirect contact area of cooling water in the water cooling plates and the heat dissipation annular plates can be increased. The cooling water used for the electrode sleeve is located between the heat dissipation annular plates and the water cooling plates, then heat conduction can be rapidly conducted, it can be guaranteed that water cooled through liquid nitrogen in a cooling tank can be rapidly recycled into a purified water tank after being used, and the cooling speed and efficiency of cooling water in the cooling mechanism can be improved.

The invention provides a crude oil safety heating tank special for crude oil transportation, and relates to the technical field of oil and gas exploitation safety control. The crude oil safety heatingtank comprises an oil tank body, an oil inlet pipe, an oil outlet pipe, an oil heating structure and an internal liquid level control device, wherein the oil tank body is composed of an inner shell and an outer shell which are arranged in a sleeving manner inside and outside; the inner shell is used for storing oil; a cavity between the inner shell and the outer shell is an insulating cavity; a hot water injection pipe and a recycling pipe which extend into the insulating cavity, and a gas inlet pipe and a gas outlet pipe which extend into the inner shell are arranged on the outer shell; theend parts, positioned in the inner shell, of the gas inlet pipe and the gas outlet pipe are higher than the oil level; the end part, positioned in the inner shell, of the gas inlet pipe is connected with a gas dispersion pipe; the end part of the end, away from the gas inlet pipe, of the gas dispersion pipe is sealed; and gas dispersion small pipes are uniformly distributed at the part, positionedin oil, of the gas dispersion pipe.

The invention discloses a tunnel lining construction joint waterproof structure. A water stop strip hole way arranged along a construction joint is arranged at the position, positioned at the construction joint, in a tunnel secondary lining, a groove which is arranged along the construction joint and penetrates through the water stop strip hole way is formed in the position, positioned at the construction joint, of the external wall of the tunnel secondary lining. The water stop strip hole way is internally filled with water stop materials to form a water stop strip. The invention further discloses a waterproof method of a tunnel lining construction joint. A drainage channel for circulation of percolating water is formed between the water stop strip and the bottom of the groove, compared with an existing pre-buried type water stop structure, the percolating water can smoothly flow out from both sides of the water stop strip, and hydraulic pressure is not formed to cause invalidation ofthe water stop strip. In addition, the waterproof structure can be conveniently dismantled and replaced after the invalidation of the waterproof structure, and secondary damage is not caused to a tunnel lining.

The invention relates to a cyclone type reverse-circulation well flushing and fishing device. The device comprises a body, wherein a milling shoe is arranged at the bottom of the body; a chip removingchannel is the center channel of the body; reducing channels are uniformly distributed in the wall of the body along the peripheral direction, and openings of the reducing channels extend to the upper end face of the body; an inner rotating orifice and outer orifice are alternately arranged in the body along the peripheral direction, a certain reducing channel is connected with the inner rotatingorifice, and two reducing channels adjacent to the certain reducing channel are respectively connected with the outer orifice; a chip removing channel is communicated with the bottom end of the corresponding reducing channel through the inner rotating orifice; the outlet of the outer orifice is formed in the outer wall of the body, and the inlet of the outer orifice is formed in the bottom end ofthe corresponding reducing channel; and the included angle between the axis of the inner rotating orifice and the bottom horizontal plane of the body is 20-70 degrees, and the included angle betweenthe center line of the outer orifice and the center line of the reducing channel is 20-70 degrees. According to the cyclone type reverse-circulation well flushing and fishing device, chips at the orifice bottom can be washed without a dead angle, and the chip removing performance of the flushing device can be greatly improved.

The invention provides a floating type backwater pumping station, and relates to the technical field of tailings pond backwater pumping stations. The technical problem existing in the prior art that afloating pumping station is difficult to use due to ice on the water surface of a tailings pond is solved. The floating type backwater pumping station comprises a floating device and a water flow driving device, wherein the floating device is connected with the water flow driving device, the floating device can float on the water surface of the tailings pond, and the water flow driving device extends into the water surface of the tailings pond and can drive the water near the floating device to flow. The floating type backwater pumping station is suitable for tailings ponds in high and cold areas of metal mining industries.

The invention relates to the technical field of chemical industry production, particularly to an anti-freezing white latex capable of resisting low temperature, wherein the anti-freezing white latex comprises, by weight, 90-110 parts of polyvinyl acetate, 60-80 parts of vinyl acetate, 30-40 parts of polyvinyl alcohol, 10-15 parts of acrylic acid, 6-13 parts of butyl acrylate, 10-15 parts of ammonium persulfate, 30-40 parts of diethylene glycol dibenzoate, 15-25 parts of sodium bicarbonate, 10-15 parts of dibutyl phthalate, 0.5-3 parts of an emulsifier, and 60-80 parts of water, wherein the acrylic acid is sulfuric acid acrylic acid, and the polyvinyl alcohol is polyvinyl butanol.

The invention discloses a magnetic bead mixed liquid, which comprises magnetic beads, protease, denaturing agent, glycerin, buffer and nucleic acid sedimentation aid. The invention also discloses a nucleic acid preservation method, a nucleic acid extraction reagent and a kit. The components of the magnetic bead mixture are premixed in a certain proportion. When nucleic acid extraction is performed, the corresponding volume can be taken at one time to add the required components evenly. The dosage is more accurate and the operation is simpler; the components are premixed in proportion. Can reduce packaging cost and transportation cost. The magnetic bead mixture solution of the present invention can make the temperature range of magnetic beads storage wider. Adopt magnetic bead mixed solution of the present invention as nucleic acid (or the carrier particle containing nucleic acid) solvent, can monitor the extraction of nucleic acid simultaneously when nucleic acid is extracted, save the sample adding step of magnetic bead method nucleic acid extraction reagent, can guarantee simultaneously the multiple hole Uniformity of nucleic acid addition concentration. The magnetic bead mixture can stably preserve the nucleic acid.

The invention discloses an energy-saving anti-freezing insulation cover which comprises a cover top, a cover wall, a cover bottom, an electric heating device, and a temperature controller. The cover top is connected with the cover wall by means of sealing. The cover wall sleeves the cover bottom. The electric heating device and the temperature controller are arranged on the cover bottom. The temperature inside the anti-freezing cover can be kept above 0 DEG C. The cover has an obvious anti-freezing effect, and there is no freezing phenomenon. The intact rate of equipment is improved greatly. The service life of camera monitors in cold regions is prolonged.

The invention relates to a device which can prevent glaze ice, rim and icing freezing injury from affecting normal work of or damaging a wind speed sensor or a wind sensor used in an automatic weather station. The device consists of a heating wire, a temperature sensor and a power supply, wherein the heating wire can be arranged in a shell of the wind sensor and can be arranged outside a sensor bearing; the temperature sensor can be arranged on the heating wire or can be arranged between the heating wire and the sensor bearing; the power supply is controlled by the temperature sensor, is used for supplying power to the heating wire and has a working voltage of 36 V; and the on-off temperature of the temperature sensor is set to be between 3 and 40 DEG C.

The invention provides a gel material and a preparation method thereof. The gel material provided by the present invention is prepared from raw materials comprising the following components in parts by weight: 5-30 parts of acrylamide monomer, 0.01-0.08 parts of cross-linking agent, 10-30 parts of water, 0.01-0.25 parts photoinitiator, 5 to 25 parts of polysiloxane modified body and 0.2 to 5 parts of organic solvent; the polysiloxane modified body is a polymer formed by polymerization reaction of polysiloxane body ; The polysiloxane body is selected from the group consisting of diamino-terminated polydimethylsiloxane, vinyl-terminated hydroxyl-terminated polydimethylsiloxane, vinyl-terminated aminopolydimethylsiloxane, hydrogen-based One or more of hydroxyl-terminated polydimethylsiloxane, hydrogen-terminated amino-polydimethylsiloxane and vinyl-terminated hydrogen-based polydimethylsiloxane. The gel material provided by the invention has excellent mechanical properties and impact hardening properties, and endows the gel material with low-temperature non-freezing properties.

The invention relates to a foam lift chemical agent diluents, preparation method and application thereof. The liquid phase components in the diluents comprise the following components by weight percentage: 30-50% of water, 50-70% of propylene glycol and the total weight of the liquid phase components is 100%. The solid phase dissolved matters in the diluents comprises the following components by weight percentage: 3-6 g / L of sodium molybdate, 0.1-0.3 g / L of orthophosphate and 0.2-0.4 g / L of zinc sulfate.

The invention relates to the technical field of chemical industry production, particularly to a low-temperature-resistant white latex, which comprises, by weight, 300 kg of polyvinyl acetate, 100 kg of vinyl acetate, 80 kg of polyvinyl alcohol, 30 kg of ethylene dimethacrylate, 10 kg of dibutyl phthalate, 35 kg of alkenyl ethyl methacrylate, 15 kg of sodium bicarbonate, 5 kg of an emulsifier, 20 kg of methylol acrylamide, and 55 kg of water, wherein the emulsifier is sodium tetradecylbenzene sulfonate, the polyvinyl alcohol is polyvinyl propanol, the polyvinyl alcohol is polyvinyl octanol, andthe polyvinyl alcohol is a mixture of polyvinyl propanol and polyvinyl octanol.

The invention provides a steam waste heat recovery system for industrial energy conservation. The steam waste heat recovery system for industrial energy conservation comprises a water tank, an air passing chamber, an air inlet pipe, an air outlet pipe, two first coiled pipes and an exhaust fan, wherein the air passing chamber is arranged on one side of the water tank; the air inlet pipe is arranged outside one side, far away from the air passing chamber, of the water tank; the air outlet pipe is arranged between the water tank and the air passing chamber; the two first coiled pipes are arranged in the water tank, the air inlet ends of the two first coiled pipes extend out of the water tank and are fixedly connected with the air inlet pipe, and the air outlet ends of the two first coiled pipes extend out of the water tank and are fixedly connected with the air outlet pipe; and the exhaust fan is fixedly mounted on the outer wall of one side of the water tank. The steam waste heat recovery system for industrial energy conservation has the advantages that steam waste heat can be fully utilized, steam can be neutralized and improved, and air pollution is reduced.

The invention discloses a universal industrial glue. The universal industrial glue comprises, by weight, 40-50 parts of polyvinyl alcohol, 3-5 parts of formaldehyde, 2-5 parts of hydrochloric acid, 6-9 parts of sodium hydroxide, 2 parts of a whole chain agent, 400-600 parts of water, 300-420 parts of vinyl acetate, 4-6 parts of OP-10, 36-39 parts of dibutyl phthalate and 0.2-0.8 part of potassiumpersulfate. A technology in the production process is stable, and the product does not freeze at -3 to -5 DEG C; and the production cost of the product of the invention is lower than that of industrial glue produced from 1788 type polyvinyl alcohol.