阅读说明：本技术 制冷机组余热提级热水利用系统及方法 (Refrigeration unit waste heat is promoted to a higher rank hot water utilization system and method ) 是由 菅从光 张辉 于 2019-08-30 设计创作，主要内容包括：一种制冷机组余热提级热水利用系统,适用于矿井下废热回收与利用。包括设置在湿热环境中的喷淋式空气除湿装置和设置在制冷压缩机后面的余热提级联合装置,溶液在喷淋式空气除湿装置喷淋吸湿浓溶液吸收水蒸汽的潜热,循环冷却水余热提级热水利用系统采用波纹板式回热器内的高温吸湿浓溶液与相变换热装置Ⅱ内的水蒸汽串联与循环水进行分级换热,有效利用不同温度的余热,该系统利用中抽汽泵及电磁控制阀调控余热提级联合装置工作压力,实现相变换热装置中水蒸汽的温度,从而实现制冷机组余热提级热水利用系统中循环冷却水出口温度的调节。(A kind of refrigeration unit waste heat is promoted to a higher rank hot water utilization system, is suitable for Waste Heat Recovery under mine and is utilized.It promotes to a higher rank combined unit including the spray-type air dehumidification device that is arranged in hygrothermal environment and setting in the subsequent waste heat of refrigeration compressor, solution absorbs the latent heat of water vapour in spray-type air dehumidification device spray moisture absorption concentrated solution, circulating cooling water afterheat hot water utilization system of promoting to a higher rank is connected using the high temperature moisture absorption concentrated solution in corrugated plate dst regenerator with the water vapour in phase change heat exchange device II and recirculated water carries out classification heat exchange, efficiently use the waste heat of different temperatures, the system utilize in steam extraction pump and solenoid electric valve regulation waste heat promote to a higher rank combined unit operating pressure, realize the temperature of water vapour in phase change heat exchange device, to realize that refrigeration unit waste heat is promoted to a higher rank the adjusting of circulating cooling water outlet temperature in hot water utilization system.)

The hot water utilization system 1. a kind of refrigeration unit waste heat is promoted to a higher rank, it is characterised in that: it includes the spray being arranged in hygrothermal environment Leaching formula air dehumidifier (21) and it is arranged and in refrigeration compressor (1) subsequent waste heat promotes to a higher rank combined unit (5),

The spray-type air dehumidification device (21) is box structure, and spray-type air dehumidification device (21) side surface upper part is equipped with dry Air outlet slit, side lower are equipped with humid air import (24), and the middle part in spray-type air dehumidification device (21) is equipped with spray tube Road spray piping is equipped with multiple spiral nozzles (22), and the bottom of box is equipped with the liquid reserve tank to collect moisture absorption weak solution (26) (25), liquid reserve tank (25) is connected by pipeline and waste heat combined unit (5) of promoting to a higher rank, and moisture absorption weak solution work is sequentially on pipeline It pumps (28), moisture absorption weak solution working barrel (28) two sides are respectively equipped with third valve (27) and the 4th valve (29), from heat user The recirculated cooling water (12) for recycling return, which is introduced into after corrugated plate dst regenerator (11) absorb heat, enters back into phase-change heat-exchange Device II (14) absorbs steam heat water temperature and further increases, and the cooling water supply heat user after heating is recycled；

Waste heat combined unit (5) of promoting to a higher rank includes phase change heat exchange device I (6), corrugated plate dst regenerator (11) and phase-change heat-exchange Device II (14) is wherein equipped with both ends pipeline and external linkage in phase change heat exchange device I (6) and phase change heat exchange device II (14) Spiral coil, two groups of hot fluid coiled pipes are equipped in corrugated plate dst regenerator (11), one group of hot fluid coiled pipe one end passes through Pipeline is connected with the spiral nozzle (22) on spray piping, and the other end passes through concentrated solution circulating pump (9) and phase change heat exchange device I (6) side wall piping connection, wherein the entrance of concentrated solution circulating pump (9) is connected with phase change heat exchange device I (6), outlet and wave The entrance of the snakelike piping connection of hot fluid in line plate regenerator (11), concentrated solution circulating pump (9) is equipped with filter (8), The entrance pipe of concentrated solution circulating pump (9) is equipped with the first valve (7), export pipeline is equipped with the second valve (10), corrugated plating Another way fluid one end of formula regenerator (11) is connect with the circulating cooling water inlet that heat user returns, corrugated plate dst regenerator (11) circulating cooling water out is connected with spiral coil one end in phase change heat exchange device II (14) in, and recirculated cooling water is in spiral shell It is heated again in capstan pipe, the recirculated cooling water (12) after heating supplies hot water user, phase change heat exchange device II (14) top It is connect by jet chimney with phase change heat exchange device I (6), jet chimney is equipped with solenoid electric valve II (18), phase inversion hot charging It sets and is additionally provided with exhaust pipe on II (14), solenoid electric valve I (15) and aspiration pump (16), phase are sequentially set on exhaust pipe It converts thermal II (14) bottom and condensation water discharging valve (13) is equipped with by pipeline；Spiral in the phase change heat exchange device I (6) Coil pipe both ends by pipeline respectively with the high pressure-temperature working medium exit port of refrigeration unit compressor (1) and electric expansion valve (4) Entrance connection, wherein the pipeline between the outlet of electric expansion valve (4) and refrigeration unit compressor (1) is equipped with evaporator (2), serpentine coil is equipped in evaporator (2), have on the outside of serpentine coil in evaporator (2) discharge chilled water (3) import and Outlet, refrigerant enter the serpentine coil being arranged in evaporator (2) after expanding by electric expansion valve (4) and receive chilled water (3) it is laggard into refrigeration unit compressor (1) to wash away cooling, evaporator (2) is equipped with the import of discharge chilled water (3) and goes out Mouthful.

The hot water utilization system 2. refrigeration unit waste heat according to claim 1 is promoted to a higher rank, it is characterised in that: the spiral nozzle (22) side wall below is equipped with the corrugated plate packing (23) of PVC material.

3. a kind of promoted to a higher rank the utilization method of hot water utilization system using refrigeration unit waste heat described in claim 1, it is characterised in that Step are as follows:

To the air spray moisture absorption concentrated solution (20) of entrance to absorb humid air (24) in spray-type air dehumidification device (21) In water vapour, spraying and absorbing the moisture absorption concentrated solution (20) after water vapour becomes moisture absorption weak solution (26), moisture absorption weak solution (26) absorb humid air water vapour heat of condensation temperature increase, by third valve (27), moisture absorption weak solution working barrel (28) and After 4th valve (29) in the phase change heat exchange device I (6) that pipeline enters that waste heat promotes to a higher rank combined unit (5), in phase-change heat-exchange Dilute calcium chloride hygroscopic solution (26) is inhaled from the spiral coil in phase change heat exchange device I (6) under device I (6) setting pressure condition The condensation heat for receiving refrigeration unit compressor (1) discharge carries out water evaporation, and moisture absorption weak solution (26) is condensed into moisture absorption concentrated solution (20), enter in corrugated plate dst regenerator (11) after moisture absorption concentrated solution (20) is pressurizeed by concentrated solution circulating pump (9), in corrugated plating It carries out heat by corrugated cardboard sheet with the cooling water for recycling return from heat user in formula regenerator (11) to exchange, moisture absorption is dense molten Enter spray-type air dehumidification device (21) after liquid (20) is cooled and continues hygroscopic solution by above process recycling；

Waste heat promote to a higher rank combined unit (5) persistently to refrigeration unit compressor (1) discharge heat recycle, refrigeration unit compression The condensation waste heat of machine (1) heats moisture absorption weak solution (26) in phase change heat exchange device I (6) along pipeline to generate water vapour, water Steam enters phase change heat exchange device II (14), recirculated cooling water (12) In by jet chimney (17) and solenoid electric valve II (18) Heat friendship is carried out with by the moisture absorption concentrated solution (20) after phase change heat exchange device I (6) heating concentration in corrugated plate-type heat exchangers (11) It changes, recirculated cooling water (12), which absorbs after moisture absorption concentrated solution (20) thermal temperature increases, enters phase change heat exchange device II (14), phase transformation The heat discharged by moisture absorption weak solution (26) in phase change heat exchange device I (6) by compressor (1) in heat-exchanger rig II (14) The water vapour of generation and recirculated cooling water (12) carry out condensation heat transfer, and water vapour releases condensation heat, phase change heat exchange device II (14) condensed water that steam condensation generates on the outside of serpentine coil in passes through condensation water discharging valve (13) discharge, recirculated cooling water (12) By corrugated plate-type heat exchangers (11) and phase change heat exchange device II (14), heating temperature can be promoted to 40 DEG C~60 DEG C twice, and can Combine dress to control waste heat by the solenoid electric valve I (15) being connected with phase change heat exchange device II (14) and aspiration pump (16) and promote to a higher rank Operating pressure in (5) is set, and then controls steam temperature in phase change heat exchange device I (6) and phase change heat exchange device II (14), water steams Stripping temperature control range are as follows: 40 DEG C~65 DEG C, realize that refrigeration unit waste heat is promoted to a higher rank thermal water utilization.

Technical field

The present invention designs a kind of refrigeration unit waste heat and promotes to a higher rank using system and method, is particularly suitable for underground coal mine waste heat and returns Receive promote to a higher rank with the refrigeration unit waste heat used using technical field hot water utilization system and method.

Background technique

The discharge of refrigeration unit waste heat of condensation is refrigeration system important component, generally passes through sky using surface-type heat exchanger Gas or cooling water take away condenser heat, and condensation heat Drainage feature is that quantity is big (being greater than refrigerating capacity), and temperature levels are lower, and one As,Condensation temperatureSlightly above environment temperature (specific value, related by working medium, compressor compresses grade etc.) cannot obtain effectively It utilizes.

Summary of the invention

Shortcoming in view of the above technology, it is simple to provide a kind of structure, easy to use, is not only able to have underground Effect dehumidifying, moreover it is possible to which the refrigeration unit waste heat for efficiently using the waste heat of refrigeration unit compressor, which is promoted to a higher rank, utilizes system and method.

To realize the above-mentioned technical purpose, a kind of refrigeration unit waste heat of the invention is promoted to a higher rank hot water utilization system, including setting Spray-type air dehumidification device in hygrothermal environment and setting are promoted to a higher rank combined unit in the subsequent waste heat of refrigeration compressor,

The spray-type air dehumidification device is box structure, and spray-type air dehumidification device side surface upper part is equipped with dry air Outlet, side lower are equipped with humid air import, and the middle part in spray-type air dehumidification device is equipped on spray piping spray piping Equipped with multiple spiral nozzles, the bottom of box is equipped with the liquid reserve tank to collect moisture absorption weak solution, and liquid reserve tank passes through pipeline and waste heat Combined unit of promoting to a higher rank is connected, and moisture absorption weak solution working barrel is sequentially on pipeline, and moisture absorption weak solution working barrel two sides are set respectively There are third valve and the 4th valve, the recirculated cooling water for recycling return from heat user is introduced into the absorption of corrugated plate dst regenerator It enters back into the absorption of phase change heat exchange device II steam heat water temperature after heat further to increase, the cooling water supply heat user after heating It is recycled；

Waste heat combined unit of promoting to a higher rank includes phase change heat exchange device I, corrugated plate dst regenerator and phase change heat exchange device II, The spiral coil of both ends pipeline and external linkage, corrugated plating are wherein equipped in phase change heat exchange device I and phase change heat exchange device II Two groups of hot fluid coiled pipes are equipped in formula regenerator, one group of hot fluid coiled pipe one end passes through the spiral on pipeline and spray piping Nozzle is connected, and the other end passes through the side wall piping connection of concentrated solution circulating pump and phase change heat exchange device I, and wherein concentrated solution recycles The entrance of pump is connected with phase change heat exchange device I, outlet and the snakelike piping connection of hot fluid in corrugated plate dst regenerator, dense molten The entrance of liquid circulating pump is equipped with filter, and the entrance pipe of concentrated solution circulating pump is equipped with the first valve, sets on export pipeline There is the second valve, another way fluid one end of corrugated plate dst regenerator is connect with the circulating cooling water inlet that heat user returns, wave Circulating cooling water out is connected with spiral coil one end in phase change heat exchange device II in line plate regenerator, recirculated cooling water It is heated again in spiral coil, the recirculated cooling water after heating supplies hot water user, passes through at the top of phase change heat exchange device II Jet chimney is connect with phase change heat exchange device I, and jet chimney is equipped with solenoid electric valve II, is additionally provided on phase change heat exchange device II Exhaust pipe is sequentially set with solenoid electric valve I and aspiration pump on exhaust pipe, and II bottom of phase change heat exchange device passes through pipeline Equipped with condensation water discharging valve；It is compressed respectively with refrigeration unit by pipeline at spiral coil both ends in the phase change heat exchange device I The high pressure-temperature working medium exit port of machine is connected with the entrance of electric expansion valve, wherein the outlet and refrigeration unit of electric expansion valve Pipeline between compressor is equipped with evaporator, and serpentine coil is equipped in evaporator, has row on the outside of serpentine coil in evaporator The inlet and outlet of chilled water out, refrigerant enter the serpentine coil being arranged in evaporator and receive after expanding by electric expansion valve It is laggard into refrigeration unit compressor, inlet and outlet of the evaporator equipped with discharge chilled water that cooling is washed away to chilled water.

Side wall below the spiral nozzle is equipped with the corrugated plate packing of PVC material

A kind of cold group waste heat is promoted to a higher rank the utilization method of hot water utilization system, the steps include:

The air spray moisture absorption concentrated solution of entrance is steamed to absorb the water in humid air in spray-type air dehumidification device Vapour, spraying and absorbing the moisture absorption concentrated solution after water vapour becomes moisture absorption weak solution, and moisture absorption weak solution absorbs humid air water vapour Heat of condensation temperature increases, and is promoted to a higher rank by entering waste heat along pipeline after third valve, moisture absorption weak solution working barrel and the 4th valve In the phase change heat exchange device I of combined unit, in the case where phase change heat exchange device I sets pressure condition, dilute calcium chloride hygroscopic solution is from phase transformation The condensation heat that absorption refrigerating machine group compressor is discharged in spiral coil in heat-exchanger rig I carries out water evaporation, and moisture absorption is dilute molten Liquid is condensed into moisture absorption concentrated solution, and moisture absorption concentrated solution enters in corrugated plate dst regenerator after being pressurizeed by concentrated solution circulating pump, in wave It carries out heat by corrugated cardboard sheet with the cooling water for recycling return from heat user in line plate regenerator to exchange, moisture absorption is dense molten Enter spray-type air dehumidification device after liquid is cooled and continues hygroscopic solution by above process recycling；

Waste heat combined unit of promoting to a higher rank persistently recycles the heat of refrigeration unit compressor discharge, refrigeration unit compressor Condensation waste heat heat moisture absorption weak solution in phase change heat exchange device I along pipeline to generating water vapour, water vapour passes through steam Pipeline and solenoid electric valve II enter phase change heat exchange device II, and recirculated cooling water is in corrugated plate-type heat exchangers and by phase-change heat-exchange Moisture absorption concentrated solution after the heating concentration of device I carries out heat exchange, and recirculated cooling water absorbs moisture absorption concentrated solution thermal temperature and increases Enter phase change heat exchange device II afterwards, is arranged by moisture absorption weak solution in phase change heat exchange device I by compressor in phase change heat exchange device II The water vapour and recirculated cooling water that the heat put generates carry out condensation heat transfer, and water vapour releases condensation heat, phase inversion The condensed water that steam condensation generates on the outside of serpentine coil in thermal II is passed through by condensation water discharging valve discharge, recirculated cooling water Heating temperature can be promoted to 40 DEG C~60 DEG C twice for corrugated plate-type heat exchangers and phase change heat exchange device II, and can by with phase transformation The connected solenoid electric valve I of heat-exchanger rig II and aspiration pump control waste heat are promoted to a higher rank operating pressure in combined unit, and then control phase Convert steam temperature in thermal I and phase change heat exchange device II, steam temperature control range are as follows: 40 DEG C~65 DEG C, realize Refrigeration unit waste heat is promoted to a higher rank thermal water utilization.

The utility model has the advantages that

It is promoted to a higher rank combined unit, compressor, evaporator, electric expansion valve, circulation using spray-type air dehumidification device, waste heat The refrigeration unit waste heat of the compositions such as cooling water, solution circulation pump, steam extraction pump, pipeline and valve is promoted to a higher rank hot water utilization system, can be real Effective use air latent heat now, to recirculated cooling water using in corrugated plate dst regenerator primary heating and phase change heat exchange device II Water vapour reheating joint, increase the caloric receptivity of recirculated cooling water, it is horizontal to improve circulating water outlet temperature, makes refrigeration unit Waste heat is utilized effectively.

Specifically advantage are as follows:

1, solution sprays water in moisture absorption concentrated solution absorption air by spiral nozzle in spray-type air dehumidification device and steams The latent heat of vapour increases the caloric receptivity of recirculated cooling water；

2, circulating cooling water afterheat promotes to a higher rank hot water utilization system using the high temperature moisture absorption concentrated solution in corrugated plate dst regenerator It connects with the water vapour in phase change heat exchange device II and recirculated water carries out classification heat exchange, efficiently use the waste heat of different temperatures, and And the vapour condensation heat transfer in phase change heat exchange device II has phase-state change, convection transfer rate is higher than single-phase heat exchange, improves and follows Ring cooling water caloric receptivity promotes circulating cooling water outlet temperature to 40 DEG C~60 DEG C, and waste heat recovering effect is significant；

3, the system utilize in steam extraction pump and solenoid electric valve regulation waste heat promote to a higher rank combined unit operating pressure, may be implemented The temperature of water vapour in phase change heat exchange device, to realize that refrigeration unit waste heat recirculated cooling water in hot water utilization system of promoting to a higher rank goes out The adjusting of mouth temperature, meets the effective use of waste heat.

Detailed description of the invention

Fig. 1 is that refrigeration unit waste heat of the present invention is promoted to a higher rank hot water utilization system schematic diagram.

In figure: 1- refrigeration unit compressor；2- evaporator；3- chilled water；4- electric expansion valve；5- waste heat, which is promoted to a higher rank, combines dress It sets；6- phase change heat exchange device I；The first valve of 7-；8- filter；9- concentrated solution circulating pump；The second valve of 10-；11 corrugated plate dsts Regenerator；12- recirculated cooling water；13- condenses water discharging valve；14- phase change heat exchange device II；15- solenoid electric valve I；16- pumping Pump；17- water vapour pipeline；18- solenoid electric valve II；19- dehumidifying dry air；20- moisture absorption concentrated solution；21- spray-type air removes Wet device；22- spiral nozzle；23- corrugated plate packing；24- humid air；25- liquid reserve tank；26- moisture absorption weak solution；27- third valve Door；28- moisture absorption weak solution working barrel；The 4th valve of 29-.

Specific embodiment

The present invention is made further instructions below in conjunction with attached drawing.

The hot water utilization system as shown in Figure 1, refrigeration unit waste heat of the invention is promoted to a higher rank, including being arranged in hygrothermal environment Spray-type air dehumidification device 21 and setting are promoted to a higher rank combined unit 5 in the subsequent waste heat of refrigeration compressor 1,

The spray-type air dehumidification device 21 is box structure, and 21 side surface upper part of spray-type air dehumidification device is equipped with dry Air outlet slit, side lower are equipped with humid air import 24, and the middle part in spray-type air dehumidification device 21 is sprayed equipped with spray piping Shower pipe road is equipped with multiple spiral nozzles 22, and the side wall of 22 lower section of spiral nozzle is equipped with the corrugated plate packing of PVC material 23, the bottom of box is equipped with the liquid reserve tank 25 to collect moisture absorption weak solution 26, and liquid reserve tank 25, which is promoted to a higher rank by pipeline with waste heat, combines Device 5 is connected, and moisture absorption weak solution working barrel 28 is sequentially on pipeline, and 28 two sides of moisture absorption weak solution working barrel are respectively equipped with Three valves 27 and the 4th valve 29, the recirculated cooling water 12 for recycling return from heat user are introduced into corrugated plate dst regenerator 11 It enters back into the absorption of phase change heat exchange device II 14 steam heat water temperature after absorption heat further to increase, the cooling water supply after heating Heat user is recycled；

The waste heat promote to a higher rank combined unit 5 include phase change heat exchange device I 6, corrugated plate dst regenerator 11 and phase inversion hot charging II 14 are set, the helical disk of both ends pipeline and external linkage is wherein equipped in phase change heat exchange device I 6 and phase change heat exchange device II 14 Pipe, corrugated plate dst regenerator 11 is interior to be equipped with two groups of hot fluid coiled pipes, and one group of hot fluid coiled pipe one end passes through pipeline and spray Spiral nozzle 22 on pipeline is connected, and the other end is connected by the side wall pipeline of concentrated solution circulating pump 9 and phase change heat exchange device I 6 It connects, wherein the entrance of concentrated solution circulating pump 9 is connected with phase change heat exchange device I 6, outlet and the heat in corrugated plate dst regenerator 11 The snakelike piping connection of fluid, the entrance of concentrated solution circulating pump 9 are equipped with filter 8, set on the entrance pipe of concentrated solution circulating pump 9 There are the first valve 7, export pipeline to be equipped with the second valve 10, another way fluid one end of corrugated plate dst regenerator 11 and heat user The circulating cooling water inlet of return connects, in corrugated plate dst regenerator 11 in circulating cooling water out and phase change heat exchange device II 14 Spiral coil one end be connected, recirculated cooling water is heated again in spiral coil, and recirculated cooling water 12 after heating supplies Hot water user is given, II 14 top of phase change heat exchange device is connect with phase change heat exchange device I 6 by jet chimney, set on jet chimney There is solenoid electric valve II 18, exhaust pipe is additionally provided on phase change heat exchange device II 14, electromagnetism control is sequentially set on exhaust pipe Valve I 15 and aspiration pump 16 processed, II 14 bottom of phase change heat exchange device are equipped with condensation water discharging valve 13 by pipeline；The phase inversion Spiral coil both ends in thermal I 6 by pipeline respectively with the high pressure-temperature working medium exit port of refrigeration unit compressor 1 and The entrance of electric expansion valve 4 connects, and wherein the pipeline between the outlet of electric expansion valve 4 and refrigeration unit compressor 1 is equipped with Evaporator 2 is equipped with serpentine coil in evaporator 2, has the import of discharge chilled water 3 in evaporator 2 on the outside of serpentine coil and goes out Mouthful, refrigerant enters setting in evaporator 2 serpentine coil after expanding by electric expansion valve 4 receives chilled water 3 and washes away drop Temperature is laggard to enter refrigeration unit compressor 1, and evaporator 2 is equipped with the inlet and outlet of discharge chilled water 3.

A kind of refrigeration unit waste heat is promoted to a higher rank the utilization method of hot water utilization system, the steps include:

To the air spray moisture absorption concentrated solution 20 of entrance to absorb in humid air 24 in spray-type air dehumidification device 21 Water vapour, spraying and absorbing the moisture absorption concentrated solution 20 after water vapour becomes moisture absorption weak solution 26, and moisture absorption weak solution 26 absorbs wet The heat of condensation temperature of air-steam increases, by suitable after third valve 27, moisture absorption weak solution working barrel 28 and the 4th valve 29 Pipeline enter waste heat promote to a higher rank combined unit 5 phase change heat exchange device I 6 in, phase change heat exchange device I 6 set pressure condition under The condensation that absorption refrigerating machine group compressor 1 is discharged from the spiral coil in phase change heat exchange device I 6 of dilute calcium chloride hygroscopic solution 26 Heat carries out water evaporation, moisture absorption weak solution 26 is condensed into moisture absorption concentrated solution 20, moisture absorption concentrated solution 20 passes through concentrated solution circulating pump 9 Enter in corrugated plate dst regenerator 11 after pressurization, recycles in corrugated plate dst regenerator 11 and from heat user the cooling of return Water carries out heat exchange by corrugated cardboard sheet, enters spray-type air dehumidification device 21 after moisture absorption concentrated solution 20 is cooled and continues to inhale Wet solution is recycled by the above process；

Waste heat promote to a higher rank combined unit 5 persistently to refrigeration unit compressor 1 discharge heat recycle, refrigeration unit compression The condensation waste heat of machine 1 heats moisture absorption weak solution 26 in phase change heat exchange device I 6 along pipeline to generate water vapour, and water vapour is logical It crosses jet chimney 17 and solenoid electric valve II 18 enters phase change heat exchange device II 14, recirculated cooling water 12 is in corrugated plate-type heat exchangers It is exchanged in 11 with by the progress heat of moisture absorption concentrated solution 20 after the heating concentration of phase change heat exchange device I 6, recirculated cooling water 12, which absorbs, to be inhaled Wet 20 thermal temperature of concentrated solution enters phase change heat exchange device II 14 after increasing, pass through phase inversion hot charging in phase change heat exchange device II 14 It sets moisture absorption weak solution 26 in I 6 and condense by water vapour and recirculated cooling water 12 that the heat that compressor 1 discharges generates and change Heat, water vapour release condensation heat, and the condensed water that steam condensation generates on the outside of serpentine coil in phase change heat exchange device II 14 is logical The discharge of condensation water discharging valve 13 is crossed, recirculated cooling water 12 adds twice by corrugated plate-type heat exchangers 11 and phase change heat exchange device II 14 Hot temperature can be promoted to 40 DEG C~60 DEG C, and by the solenoid electric valve I 15 that is connected with phase change heat exchange device II 14 and can take out Air pump 16 controls waste heat and promotes to a higher rank operating pressure in combined unit 5, and then controls phase change heat exchange device I 6 and phase change heat exchange device II Steam temperature in 14, steam temperature control range are as follows: 40 DEG C~65 DEG C, realize that refrigeration unit waste heat is promoted to a higher rank thermal water utilization.

Waste heat promotes to a higher rank combined unit 5 to the use classification recycling of refrigeration unit waste heat, and condensation waste heat is in phase change heat exchange device I 6 The water vapour that middle heating moisture absorption weak solution 26 generates enters phase change heat exchange device by jet chimney 17 and solenoid electric valve II 18 II 14, recirculated cooling water 12 exchanges heat in corrugated plate-type heat exchangers 11 with the moisture absorption concentrated solution 20 being heated after being concentrated, and follows Ring cooling water 12 enters phase change heat exchange device II 14, water vapour and recirculated cooling water 12 in phase change heat exchange device II 14 after heating up Condensation heat transfer is carried out, condensation heat is released, the condensed water in phase change heat exchange device II 14 is discharged by condensation water discharging valve 13, Recirculated cooling water 12 is further increased by heating temperature twice, and can be by the electromagnetism that is connected with phase change heat exchange device II 14 Control valve I 15 and aspiration pump 16 control waste heat and promote to a higher rank operating pressure in combined unit 5, and then vapor (steam) temperature in control system, real Existing refrigeration unit waste heat is promoted to a higher rank thermal water utilization.

Refrigeration unit waste heat provided by the invention is promoted to a higher rank hot water utilization system, on the basis of the Background Conventional chiller units method of operation On, using spray-type air dehumidification device 21 absorb air latent heat, by waste heat promote to a higher rank combined unit 5 realize refrigeration unit more than The utilization of promoting to a higher rank of heat, realizes effective recycling of waste heat, achieves energy-saving and emission reduction purposes.And structure of the invention is novel, improves remaining The temperature levels of heat create condition for effective use refrigeration unit waste heat, have preferable prospect of the application, can widely apply It is recycled in waste-heat of refrigerating system.