CN211039033U - Drying device for treating compressed air by utilizing waste heat of screw air compressor - Google Patents
Drying device for treating compressed air by utilizing waste heat of screw air compressor Download PDFInfo
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- CN211039033U CN211039033U CN201921800829.4U CN201921800829U CN211039033U CN 211039033 U CN211039033 U CN 211039033U CN 201921800829 U CN201921800829 U CN 201921800829U CN 211039033 U CN211039033 U CN 211039033U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 27
- 238000001035 drying Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 239000006096 absorbing agent Substances 0.000 claims abstract description 40
- 239000000498 cooling water Substances 0.000 claims abstract description 29
- 238000007605 air drying Methods 0.000 claims abstract description 16
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 9
- 241000190070 Sarracenia purpurea Species 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 10
- 239000003507 refrigerant Substances 0.000 description 27
- 239000003921 oil Substances 0.000 description 15
- 239000010687 lubricating oil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The utility model discloses an utilize screw compressor machine waste heat treatment compressed air's drying device belongs to screw compressor machine waste heat utilization and compressed air drying technical field. The device comprises a screw air compressor and a refrigeration cycle consisting of a generator and a condenser which are communicated with each other, an evaporator and an absorber which are communicated with each other, wherein an inner water pipe is connected with a pipe bundle pipe of the generator, the screw air compressor is respectively connected with an outer air pipe and an outer oil pipe, the outer air pipe is sequentially communicated with a compressed air precooler and a compressed air drying treatment heat exchanger, the inner water pipe and the pipe bundle pipe of the generator form waste hot water circulation, the pipe bundle pipes of the condenser and the absorber form cooling water circulation, the pipe bundle pipes of the compressed air drying treatment heat exchanger and the evaporator form chilled water circulation, and the generator and the absorber form solution circulation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an utilize screw compressor machine waste heat treatment compressed air's drying device belongs to screw compressor machine waste heat utilization and compressed air drying process technical field.
[ background of the invention ]
The motor manufacturing industry commonly adopts a screw air compressor as air source power equipment, and the provided air source power is supplied to a large amount of motor tool equipment and automatic manufacturing equipment. On one hand, in the operation process of the screw air compressor, heat energy is generated by air compression and lubricating oil in an oil way has sealing movement heat when the air is compressed, but the lubricating oil is inefficiently discharged as industrial waste heat by existing motor manufacturing enterprises, and the oil temperature of about 90 ℃ is not well utilized; on the other hand, the use of the moisture-containing gas source has great influence on the motor tool equipment and the automatic manufacturing equipment, and a high-precision transmission system of the equipment is easy to rust.
In view of this, how to effectively utilize the operation waste heat of the screw air compressor to provide dry compressed air for the manufacturing and production of the motor is an urgent need in the motor industry.
In the prior art, a generator, a condenser, an evaporator and an absorber of a refrigeration cycle usually adopt a coil pipe for heat exchange, and the coil pipe has the defect of small heat exchange area.
[ Utility model ] content
The utility model discloses to the not enough of above-mentioned prior art and provide an utilize screw compressor machine waste heat treatment compressed air's drying device.
In order to solve the technical problem, the utility model provides a following solution:
the utility model provides an utilize screw compressor machine waste heat treatment compressed air's drying device, includes generator, condenser, evaporimeter, absorber and interconnect's screw compressor machine, oil and gas separator, and generator, condenser, evaporimeter, absorber have generator shell and tube, condenser shell and tube, evaporimeter shell and tube and absorber shell and tube respectively, and its improvement point lies in: the compressed air drying treatment heat exchanger comprises a heat exchanger shell tube, a fifth finned heat exchange tube bundle tube positioned in the heat exchanger shell tube, and air blocking sheets staggered and inserted on the fifth finned heat exchange tube bundle tube at intervals, wherein the main cavity is communicated with the heat exchanger shell tube through a first bridge interface, and the heat exchanger shell tube is sequentially communicated with a second bridge interface, a first auxiliary cavity, a second auxiliary cavity, The heat exchange tube and a second auxiliary cavity, the second auxiliary cavity is externally connected with gas equipment, the sleeve-type heat exchanger consists of an outer gas tube, an outer oil tube and a heat exchange inner water tube which is sequentially arranged in the outer gas tube and the outer oil tube in a penetrating way, the exhaust end of the oil-gas separator is connected with the inlet of the main cavity through the outer gas tube, the oil exhaust end of the oil-gas separator is fed back to the screw air compressor through the outer oil tube, a generator spray head and a first fin type heat exchange tube bundle tube are respectively arranged in the generator shell tube from top to bottom, a second fin type heat exchange tube bundle tube is arranged in the condenser shell tube, an evaporator spray head and a third fin type heat exchange tube bundle tube are respectively arranged in the evaporator shell tube from top to bottom, an absorber spray head and a fourth fin type heat exchange tube bundle tube are respectively arranged in the absorber shell tube from top to bottom, the upper space of the generator shell tube is communicated, a solution pipeline I and a solution pipeline II are arranged between the generator shell tube and the absorber shell tube, two ends of the solution pipeline I are respectively connected with a solution cup a arranged at the bottom of the generator shell tube and a solution cup b arranged at the bottom of the absorber shell tube, the bottom port of the solution cup b is communicated with an absorber spray head through a solution pump, two ends of the solution pipeline II are respectively connected with the bottom port of the solution cup b and the generator spray head, the solution pipeline II is provided with another solution pump, the bottom of the condenser shell tube is communicated to the upper part of the shell tube of the evaporator through a U-shaped throttling spray pipe, a water cup arranged at the bottom of the shell tube of the evaporator is communicated with the spray head of the evaporator through an evaporator circulating water pump, a fourth fin type heat exchange tube bundle tube and a second fin type heat exchange tube bundle tube form a cooling water circulating pipeline, a heat exchange inner water pipe and a first fin type heat exchange tube bundle form a waste hot, and the third fin type heat exchange tube bundle tube and the fifth fin type heat exchange tube bundle tube form a chilled water circulation pipeline.
The waste hot water heat supply circulating pipeline is connected with a water storage device and a waste hot water circulating pump for waste heat recovery.
A water vapor channel a is connected between the upper space of the generator shell tube and the upper space of the condenser shell tube.
The cooling water circulation pipeline is connected with a cooling water tower and a cooling water circulation pump.
The chilled water circulating pipeline is connected with a chilled water reservoir and a chilled water circulating pump.
And a water vapor channel b is connected between the upper space of the evaporator shell tube and the upper space of the absorber shell tube.
The solution pipeline 1 and the solution pipeline II penetrate through a sealed shell to form a solution heat exchanger.
The condenser shell tube is externally connected with a vacuumizing device.
The heat exchanger shell and tube is provided with a water storage cup with a drainer at the bottom wall.
The purpose of setting up the evacuating device is in preventing that outside air from leaking into refrigeration cycle system, ensures that refrigeration cycle system inside is in good vacuum state, takes out the noncondensable gas in the refrigeration cycle system simultaneously.
The utility model has the advantages of as follows and beneficial effect:
the generator, the solution heat exchanger, the condenser, the U-shaped section spray pipe, the evaporator, the absorber, the cooling water circulation pipeline and the like form a refrigeration cycle, the refrigeration cycle fully absorbs the working waste heat of compressed air and lubricating oil carried by the screw air compressor to be used as a refrigeration heat source, the sleeve type heat exchanger continuously transmits heat to the generator to heat the solution in the shell of the generator, proper low-temperature refrigerant water is continuously prepared in the refrigeration cycle process by utilizing the change of the concentration of the solution, the low-temperature refrigerant water is continuously vaporized under the low-pressure condition of the refrigeration cycle to be used for cooling chilled water, the cooled chilled water is continuously output to the compressed air drying processor to flow through the fifth finned heat exchange tube bundle, and the chilled water cools the compressed air flowing through the compressed air drying processor to promote the compressed air to be dried.
This device electric energy consumption is extremely low, only need for cooling tower's fan, two solution pumps and four water pumps provide the minimum electric quantity can, not only avoided screw compressor to external environment's heat emission, the lubricating oil that returns to supply with screw compressor after the heat transfer of bushing type heat exchanger is low temperature lubricating oil moreover, avoids lubricating oil to reduce because of high temperature viscosity is too fast, ensures that screw compressor lasts sealed lubrication.
Compared with the coil pipe in the prior art, the first finned heat exchange tube bundle pipe arranged in the shell pipe of the generator has a larger heat exchange area, and can evaporate water in the solution only by a small amount of heat supply; compared with the coil pipe in the prior art, the second fin type heat exchange tube bundle pipe arranged in the condenser shell pipe has a larger heat exchange area, and can be beneficial to accelerating the condensation of water vapor; compared with the coil pipe in the prior art, the third finned heat exchange tube bundle pipe arranged in the shell pipe of the evaporator has a larger heat exchange area and can accelerate the vaporization of refrigerant water; compared with the coil pipe in the prior art, the fourth finned heat exchange tube bundle pipe arranged in the absorption shell pipe has a larger heat exchange area, and solution cooling is accelerated.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, a drying device for processing compressed air by using waste heat of a screw air compressor comprises a generator, a condenser, an evaporator, an absorber, and a screw air compressor 11 and an oil-gas separator 12 connected with each other, wherein the generator, the condenser, the evaporator, and the absorber respectively have a generator shell tube 5, a condenser shell tube 6, an evaporator shell tube 7, and an absorber shell tube 8, and the improvement is that: the compressed air drying treatment device comprises a compressed air precooler 3 and a compressed air drying treatment heat exchanger 4, wherein the compressed air precooler 3 comprises a precooler shell tube and heat exchange tubes 31, the precooler shell tube is divided into a main cavity 30, a first auxiliary cavity 30a and a second auxiliary cavity 30b, the main cavity 30 is provided with an inlet h1, the heat exchange tubes 31 arranged at intervals extend along the length direction of the main cavity 30, two ends of each heat exchange tube 31 are respectively communicated with the first auxiliary cavity 30a and the second auxiliary cavity 30b, the compressed air drying treatment heat exchanger 4 comprises a heat exchanger shell tube 40, fifth finned heat exchange tube bundle tubes 41 positioned in the heat exchanger shell tube 40 and air baffles 42 which are staggered and inserted on the fifth finned heat exchange tube bundle tubes 41 at intervals, the main cavity 30 is communicated with the heat exchanger shell tube 40 through a first bridge connector 40a, the heat exchanger shell and tube 40 is sequentially communicated with a second bridge connector 40b, a first auxiliary cavity 30a, a heat exchange tube 31 and a second auxiliary cavity 30b, the second auxiliary cavity 30b is externally connected with gas equipment through an outlet h2, the sleeve type heat exchanger 2 is composed of an outer air tube 21, an outer oil tube 22 and a heat exchange inner water tube 23 sequentially penetrating in the outer air tube 21 and the outer oil tube 22, an exhaust end 121 of an oil-gas separator 12 is connected with an inlet h1 of the main cavity 30 through the outer air tube 21, an oil discharge end 122 of the oil-gas separator 12 is connected with the other end of the screw air compressor 11 through the outer oil tube 22, a generator spray header 51 and a first finned heat exchange tube bundle tube 50 are respectively arranged in the generator shell and tube 5 from top to bottom, a second finned heat exchange tube bundle tube 60 is arranged in the condenser shell and tube 6, an evaporator spray header 71 and a third finned heat exchange tube bundle tube 70 are respectively arranged in the evaporator shell and tube 7 from top to bottom, A fourth finned heat exchange tube bundle tube 80, the upper space of the generator shell tube 5 is communicated with the upper space of the condenser shell tube 6, the upper space of the evaporator shell tube 7 is communicated with the upper space of the absorber shell tube 8, a solution tube I91 and a solution tube II92 are arranged between the generator shell tube 5 and the absorber shell tube 8, two ends of the solution tube I91 are respectively connected with a solution cup a 52 arranged at the bottom of the generator shell tube 5 and a solution cup b82 arranged at the bottom of the absorber shell tube 8, the bottom port of the solution cup b82 is communicated with the absorber spray header 81 through a solution pump P1, two ends of the solution tube II92 are respectively connected with the bottom port of the solution cup b82 and the generator spray header 51, another solution pump P2 is arranged on the solution tube II92, the bottom of the condenser shell tube 6 is communicated with the upper part of the evaporator shell tube 7 through a U-shaped throttle spray pipe 73, and a water cup 72 arranged at the bottom of the evaporator shell tube 7 is communicated with the evaporator spray header 7 through an evaporator circulating water pump b3 The fourth finned heat exchange tube bundle tube 80 and the second finned heat exchange tube bundle tube 60 form a cooling water circulation pipeline, the heat exchange inner water tube 23 and the first finned heat exchange tube bundle tube 50 form a waste hot water heat supply circulation pipeline, and the third finned heat exchange tube bundle tube 70 and the fifth finned heat exchange tube bundle tube 41 form a chilled water circulation pipeline.
The lithium bromide solution (hereinafter referred to as solution) used in the utility model adopts a binary working medium pair mixture consisting of refrigerant water and absorbent lithium bromide. Wherein, the boiling point of water is low under the condition of low pressure, and lithium bromide is easy to absorb and refrigerate.
The waste hot water heat supply circulation pipeline is connected with a water storage device T1 for waste heat recovery and a waste hot water circulation pump b 1.
The water flows out from the water receiver T1, flows through the heat exchange inner water pipe 23, the waste hot water circulating pump b1 and the first finned heat exchange tube bundle tube 50, and then flows back to the water receiver T1, forming a waste hot water heat supply circulating pipeline, and the circulation is used for absorbing the waste heat of high-temperature compressed air flowing in the outer air pipe 21 and the waste heat of high-temperature oil flowing in the outer oil pipe 22 when the water flows through the whole heat exchange inner water pipe 23, and heating the dilute solution sprayed on the pipe when the heat carrier water flows into the first finned heat exchange tube bundle tube 50.
A water vapor passage a 5-6 is connected between the upper space of the generator shell tube 5 and the upper space of the condenser shell tube 6.
When the dilute solution is sprayed onto the first finned heat exchange tube bundle tube 50, the water content of the dilute solution is evaporated to water vapor, which flows into the upper space of the condenser shell-and-tube 6 from the upper space of the generator shell-and-tube 5, as the hot water flowing in the tube heats the dilute solution.
The cooling water circulating pipeline is connected with a cooling water tower T2 and a cooling water circulating pump b 2.
The cooling water flows out from the cooling water tower T2, is supplied to the fourth finned heat exchange tube bundle tube 80 by the cooling water circulating pump b2, flows into the second finned heat exchange tube bundle tube 60, and then flows back to the cooling water tower T2, thereby forming a cooling water circulating pipeline. However, the cooling water flowing in the second finned heat exchange tube bundle tubes 60 condenses the water vapor inside the condenser shell and tube 6 into refrigerant water, which flows out of the condenser shell and tube 6.
The refrigerant water flows through the U-shaped throttle spraying pipe 73, under the action of the pressure difference formed at the two ends of the U-shaped throttle spraying pipe, the refrigerant water flowing into the evaporator shell pipe 7 drips onto the third finned heat exchange tube bundle pipe 70 and flows down to be collected into the water cup 72 at the bottom of the evaporator shell pipe 7, and the evaporator circulating water pump b3 continuously conveys the refrigerant water in the water cup 72 to the evaporator spray header 71 and sprays the refrigerant water onto the third finned heat exchange tube bundle pipe 70, so that the refrigerant water absorbs the heat of the frozen water flowing in the third finned heat exchange tube bundle pipe 70.
The chilled water circulating pipeline is connected with a chilled water reservoir T3 and a chilled water circulating pump b 4.
The chilled water flows out from the chilled water reservoir T3, sequentially flows through the chilled water circulating pump, the third fin type heat exchange tube bundle tube 70 and the fifth fin type heat exchange tube bundle tube 41, and then flows back to the chilled water reservoir T3, so that a chilled water circulating pipeline is formed.
A water vapor passage b 7-8 is connected between the upper space of the evaporator shell tube 7 and the upper space of the absorber shell tube 8.
When the refrigerant water falls onto the third fin heat exchange tube bundle tube 70 in which the chilled water flows, the refrigerant water is vaporized into water vapor by absorbing the heat of the chilled water, and the water vapor flows from the upper space of the evaporation shell tube 7 into the upper space of the absorber shell tube 8.
The solution line I91 and the solution line II92 are disposed through a sealed case 90, and the solution line I91, the solution line II92 and the sealed case 90 constitute the solution heat exchanger 9.
Solution line I91 and solution line II92 flow solutions that are at different concentrations, different temperatures, and in opposite directions. In detail, the solution heated in the generator shell tube 5 is evaporated to become a concentrated solution with higher temperature, the concentrated solution flows automatically into the solution cup b82 at the bottom of the absorber shell tube 8, the concentrated solution in the solution cup b82 is conveyed to the absorber spray header 81 by means of a solution pump P1 and then is sprayed on the fourth finned heat exchange tube bundle tube 80, the water vapor filled in the absorber shell tube 8 is absorbed in the spraying process, so that the concentrated solution is diluted into a dilute solution and flows back to the solution cup b82 again, the dilute solution flows in the solution tube II92 by means of another solution pump P2 and is sprayed on the first finned heat exchange tube bundle tube 50 by means of the generator spray header 51, and the process is repeated.
The high-temperature concentrated solution flowing through the line I91 and the low-temperature dilute solution flowing through the line II92 in the sealed case 90 exchange heat with each other in the sealed case 90.
The condenser shell tube 6 is externally connected with a vacuum extractor 61.
The utility model discloses the generator shell and tube 5, condenser shell and tube 6, evaporator shell and tube 7 and the absorber shell and tube 8 that use ensure all shell and tubes through evacuation device 61 and all be in vacuum state.
The compressed air containing moisture cooled by heat exchange in the double pipe heat exchanger 2 flows into the main chamber 30 through the inlet h1 and flows into the heat exchanger shell and tube 40 around the gap between the heat exchange tubes 31, at the same time, the chilled water flowing through the third finned heat exchange tube bundle tubes 70 has completed heat exchange with the refrigerant water (located within the evaporator shell and tube 7), the chilled water is cooled and then flows to the fifth finned heat exchange tube bundle tube 41, so that the moisture-containing compressed air flowing outside the fifth finned heat exchange tube bundle tube 41 and inside the heat exchanger shell tube 40 is indirectly cooled, when the cooling reaches a certain dew point temperature, the moisture contained in the compressed air is separated out, the dried compressed air flows out from the second bridge port 40b, and flows through the first sub-chamber 30a, the heat exchange pipe 31 and the second sub-chamber 30b in sequence to provide the compressed air power without moisture for the gas-using equipment.
The heat exchanger shell and tube 40 is provided at its bottom wall with a water reservoir cup 43 with a drain.
The utility model discloses a working process is: after the high-temperature and high-pressure oil-gas mixture flowing out of one end of the screw air compressor 11 is processed by the oil-gas separator 12, the compressed air flows into the outer air pipe 21 through the exhaust end 121, the lubricating oil flows into the outer oil pipe 22 through the oil exhaust end 122, meanwhile, the circulating water for absorbing waste heat flows in the heat exchange inner water pipe 23, the water performs reverse heat exchange in the sleeve-type heat exchanger 2 in a way of mutually reverse flowing with the high-temperature compressed air and the high-temperature lubricating oil, and the heat exchange result is as follows: the water absorbs the waste heat of the high-temperature compressed air and the high-temperature lubricating oil to be heated, flows through the first finned heat exchange tube bundle tube 50 under the action of a waste hot water circulating pump b1, is cooled and then flows back to the water storage device T1, wherein the high-temperature hot water flowing in the first finned heat exchange tube bundle tube 50 is used for uninterruptedly heating the solution sprayed on the surface of the tube 50; meanwhile, the compressed air and the lubricating oil are respectively cooled, the cooled compressed air flows into the main cavity 30 of the compressed air precooler 3, and the cooled lubricating oil flows back into the main cavity from the other end of the screw air compressor 11, so that the requirement of low-temperature lubrication of the screw air compressor 11 is met.
The solution is stored in a solution cup b82 at the bottom of the absorber shell and tube 8, and is supplied to a generator spray header 51 through a solution pipeline II92 under the pressurization action of another solution pump P2, and is continuously sprayed to the first finned heat exchange tube bundle tube 50, and water vapor evaporated by the solution under heat is subjected to heat exchange with the heat in the tube 50 in the solution spraying process, and enters the condenser shell and tube 6 through a water vapor channel 5-6 (the thickened solution is stored in a solution cup a 52 and flows back to the solution cup b82 through a solution pipeline I91).
The water vapor enters the condenser shell and tube 6 and exchanges heat with the second finned heat exchange tube bundle tube 60, cooling water from a cooling water tower T2 continuously flows in the tube 60 (under the pressurization action of a cooling water circulating pump b2, the cooling water flowing out of the cooling water tower T2 flows through the second finned heat exchange tube bundle tube 60 through a fourth finned heat exchange tube bundle tube 80 and then flows back to the cooling water tower T2), the water vapor exchanges heat with the cooling water in the second finned heat exchange tube bundle tube 60 and then is condensed into refrigerant water, the refrigerant water flowing out from the condenser shell and tube 6 is depressurized and throttled through a U-shaped throttling spray tube 73 and then is dripped on the third finned heat exchange tube bundle tube 70 in the evaporator shell and tube 7 at a low temperature to absorb the heat of the refrigerant water in the tube 70, and an evaporator circulating water pump b3 is used for pressurizing the refrigerant water stored in a water cup 72 at the bottom of the evaporator shell and tube 7 and spraying the refrigerant water on the third finned heat exchange tube bundle tube 70 through an evaporator spray header 71. However, the chilled water from the chilled water reservoir T3 continuously flows in the third finned heat exchange tube bundle 70, and the chilled water also flows in the fifth finned heat exchange tube bundle 41, and exchanges heat with the compressed air flowing in the heat exchanger shell tube 40 (the chilled water flowing out of the chilled water reservoir T3 flows through the third finned heat exchange tube bundle 70, the fifth finned heat exchange tube bundle 41 under pressurization by the chilled water circulation pump b4, and then flows back to the chilled water reservoir T3). When the refrigerant water sprayed on the third finned heat exchange tube bundle tube 70 absorbs the heat of the chilled water in the tube 70, the refrigerant water is vaporized into refrigerant vapor, and the refrigerant vapor enters the absorber shell tube 8 through the vapor channel 7-8.
Since the solution in the solution cup b82 is continuously sprayed by the absorber spray header 81 through the solution pump P1 by the absorber shell and tube 8, the refrigerant vapor is mixed with the sprayed concentrated solution, so that the refrigerant vapor is absorbed by the concentrated solution, when the concentrated solution becomes a dilute solution, a large amount of heat is generated by absorbing the refrigerant vapor, the heated solution is sprayed and dropped on the fourth finned heat exchange tube bundle tube 80, as mentioned above, the cooling water flows in the fourth finned heat exchange tube bundle tube 80, the circulating cooling water absorbs the heat of the solution outside the fourth finned heat exchange tube bundle tube 80, enters the second finned heat exchange tube bundle tube 60 to absorb the heat of the vapor entering the condenser shell and tube 6 from the generator shell and tube 5 again, so that the vapor is condensed into the refrigerant water again, and the process is repeated in a continuous circulating manner.
The compressed air cooled in the double pipe heat exchanger 2 flows from the outlet pipe opening 211 of the outer air pipe 21 into the main chamber 30 of the compressed air precooler 3 through the inlet h1, and the flow path of the compressed air flows along the main chamber 30, then flows into the heat exchange shell pipe 40 of the compressed air drying heat exchanger 4 through the first bridge connector 40a, then flows into the first sub-chamber 30a through the second bridge connector 40b, then flows into the heat exchange pipe 31, then flows into the second sub-chamber 30b, and finally is delivered to the external air supply device through the outlet h2 of the second sub-chamber 30 b. Wherein,
when the chilled water is in the third fin type heat exchange tube bundle tube 70, the chilled water absorbs the cold energy of the refrigerant water, the low-temperature chilled water flowing out of the tube 70 enters the fifth fin type heat exchange tube bundle tube 41, the low-temperature chilled water exchanges heat with the compressed air flowing in the heat exchanger shell tube 40 in the flowing process, the flow of the compressed air is slowed down after being blocked by the air blocking pieces 42 for multiple times, the compressed air fully contacts with the fins of the fifth fin type heat exchange tube bundle tube 41, the heat of the compressed air is taken away by the chilled water, the compressed air is rapidly cooled, the moisture contained in the moist compressed air reaches the saturation temperature and is rapidly condensed, the moisture in the compressed air is condensed to form water drops, and therefore the drying treatment of the compressed air is achieved. Most of the water vapor contacts with the fins and condenses into liquid water, the liquid water flowing downwards is collected into a water storage cup 43 with a water drainer (not shown), when the water storage cup 43 does not reach a certain water level, the compressed air filled in the heat exchanger shell tube 40 closes the water drainer under the pressure of the compressed air, air flow leakage cannot be caused, when the water level rises to a certain height, the water storage cup 43 with the water drainer automatically opens under the action of water buoyancy, the liquid water is quickly drained under the action of air pressure, the water drainer after draining loses the action of water buoyancy, and the water drainer automatically closes and drains under the self-gravity and the air pressure.
When the compressed air after drying and cooling treatment flows into the heat exchange pipe 31, the compressed air exchanges heat with high-temperature water-containing compressed air which flows into the main cavity 30 subsequently but is not treated in the compressed air precooler 3, and the heat exchange results in that on one hand, the cold energy carried by the dry cold-state compressed air is recovered, and the cold energy is used for cooling the compressed air carrying a large amount of water vapor and having higher temperature, so that the heat load of the compressed air drying treatment heat exchanger 4 is reduced, and the purpose of saving energy is achieved; on the other hand, the temperature of the low-temperature dry compressed air in the compressed air precooler 3 is raised, so that the dry compressed air is prevented from rusting caused by dewing on the outer wall of the pipe due to the fact that the temperature of the outer wall of the gas transmission pipeline is lower than the temperature of the external environment in the process of supplying and conveying the dry compressed air to gas equipment.
Claims (9)
1. The utility model provides an utilize screw compressor machine waste heat treatment compressed air's drying device, includes generator, condenser, evaporimeter, absorber and interconnect's screw compressor machine, oil and gas separator, and generator, condenser, evaporimeter, absorber have generator shell and tube, condenser shell and tube, evaporimeter shell and tube and absorber shell and tube, its characterized in that respectively: also comprises a compressed air drying processor and a double-pipe heat exchanger,
the compressed air drying processor consists of a compressed air precooler and a compressed air drying heat exchanger, the compressed air precooler comprises a precooler shell tube and a heat exchange tube, the precooler shell tube is divided into a main cavity, a first auxiliary cavity and a second auxiliary cavity, the main cavity is provided with an inlet, the heat exchange tubes arranged at intervals extend along the length direction of the main cavity, two ends of each heat exchange tube are respectively communicated with the first auxiliary cavity and the second auxiliary cavity, the compressed air drying heat exchanger comprises a heat exchanger shell tube, a fifth fin type heat exchange tube bundle tube positioned in the heat exchanger shell tube and air blocking sheets which are staggered and inserted on the fifth fin type heat exchange tube bundle tube at intervals, the main cavity is communicated with the heat exchanger shell tube through a first bridge interface, the heat exchanger shell tube is sequentially communicated with a second bridge interface, the first auxiliary cavity, the heat exchange tube and a second auxiliary cavity, and the second auxiliary cavity is externally connected with an,
the sleeve type heat exchanger consists of an outer air pipe, an outer oil pipe and a heat exchange inner water pipe which is sequentially penetrated in the outer air pipe and the outer oil pipe, the exhaust end of the oil-gas separator is connected with the inlet of the main cavity body through the outer air pipe, the oil exhaust end of the oil-gas separator is supplied to the screw air compressor through the outer oil pipe,
a generator spray header and a first finned heat exchange tube bundle tube are respectively arranged in the generator shell tube from top to bottom, a second finned heat exchange tube bundle tube is arranged in the condenser shell tube, an evaporator spray header and a third finned heat exchange tube bundle tube are respectively arranged in the evaporator shell tube from top to bottom, an absorber spray header and a fourth finned heat exchange tube bundle tube are respectively arranged in the absorber shell tube from top to bottom, the upper space of the generator shell tube is communicated with the upper space of the condenser shell tube, the upper space of the evaporator shell tube is communicated with the upper space of the absorber shell tube, a solution pipeline I and a solution pipeline II are arranged between the generator shell tube and the absorber shell tube, two ends of the solution pipeline I are respectively connected with a solution cup a arranged at the bottom of the generator shell tube and a solution cup b arranged at the bottom of the absorber shell tube, the bottom port of the solution cup b is communicated with the spray header through a solution pump, and two ends of the solution pipeline II are respectively connected with the bottom port, The generator spray header is connected, the solution pipeline II is provided with another solution pump, the bottom of the condenser shell tube is communicated to the upper part of the evaporator shell tube through a U-shaped throttle spray tube, a water cup arranged at the bottom of the evaporator shell tube is communicated to the evaporator spray header through an evaporator circulating water pump,
the fourth finned heat exchange tube bundle tube and the second finned heat exchange tube bundle tube form a cooling water circulation pipeline, the heat exchange inner water tube and the first finned heat exchange tube bundle tube form a waste hot water heat supply circulation pipeline, and the third finned heat exchange tube bundle tube and the fifth finned heat exchange tube bundle tube form a chilled water circulation pipeline.
2. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: the waste hot water heat supply circulating pipeline is connected with a water storage device and a waste hot water circulating pump for waste heat recovery.
3. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: and a water vapor channel a is connected between the upper space of the generator shell tube and the upper space of the condenser shell tube.
4. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: and the cooling water circulating pipeline is connected with a cooling water tower and a cooling water circulating pump.
5. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: the chilled water circulating pipeline is connected with a chilled water reservoir and a chilled water circulating pump.
6. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: and a water vapor channel b is connected between the upper space of the evaporator shell tube and the upper space of the absorber shell tube.
7. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: the solution pipeline I and the solution pipeline II penetrate through a sealed shell to form a solution heat exchanger.
8. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: and the condenser shell tube is externally connected with a vacuumizing device.
9. The drying device for treating compressed air by using waste heat of the screw air compressor as claimed in claim 1, wherein: the heat exchanger shell and tube is provided with a water storage cup with a water drainage device at the bottom wall of the heat exchanger shell and tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800829.4U CN211039033U (en) | 2019-10-17 | 2019-10-17 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800829.4U CN211039033U (en) | 2019-10-17 | 2019-10-17 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN211039033U true CN211039033U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921800829.4U Withdrawn - After Issue CN211039033U (en) | 2019-10-17 | 2019-10-17 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
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| CN (1) | CN211039033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762003A (en) * | 2019-10-17 | 2020-02-07 | 浙江迪贝电气股份有限公司 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
-
2019
- 2019-10-17 CN CN201921800829.4U patent/CN211039033U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762003A (en) * | 2019-10-17 | 2020-02-07 | 浙江迪贝电气股份有限公司 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
| CN110762003B (en) * | 2019-10-17 | 2024-06-07 | 浙江迪贝电气股份有限公司 | Drying device for treating compressed air by utilizing waste heat of screw air compressor |
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