CN218096679U - Industrial waste heat air conditioner refrigerating system - Google Patents

Abstract

The utility model relates to an industry waste heat air conditioner refrigerating system, the one end of lithium bromide refrigerator body is provided with the cooling box that is used for cooling down the high temperature flue gas, one side of lithium bromide refrigerator body is provided with the cooling tower, lithium bromide refrigerator body is linked together through thin solution pipe and cooling box, the cooling box is linked together with the cooling tower through thick solution pipe and steam pipe, lithium bromide refrigerator body is linked together with the cooling tower through low temperature solution pipe and low temperature water pipe, the one end through connection that the cooling box is close to thin solution pipe has and is used for the exhaust pipe of the flue gas through the cooling, the one end through connection that the cooling box is close to thick solution pipe has the inlet tobacco pipe that is used for being linked together with the fume extractor output, the refrigerant pipe that is used for outwards exporting low temperature refrigerant is installed to the other end of lithium bromide refrigerator body, fully absorb the industry waste heat, carry out heat absorption refrigeration and hot water supply in step, thereby fully utilize the industry waste heat, improve the heat utilization efficiency.

Description

Industrial waste heat air conditioner refrigerating system

Technical Field

The utility model relates to a waste heat recovery technical field, concretely relates to industry waste heat air conditioner refrigerating system.

Background

In industrial production, various high-temperature flue gases are often required to be discharged, the flue gases can be discharged only through steps of cooling and the like, and the heat of the flue gases is absorbed through an industrial waste heat air conditioning and refrigerating system.

Patent document CN215637274U discloses a waste heat utilization system, which includes: the flue is used for discharging high-temperature flue gas outwards; the two-stage heat exchanger is provided with a first-stage heat exchange surface and a second-stage heat exchange surface, the first-stage heat exchange surface and the second-stage heat exchange surface are arranged on the flue, and the second-stage heat exchange surface is arranged at the downstream of the first-stage heat exchange surface along the discharge direction of flue gas in the flue; the water return end of the first heat collection pipeline is connected with one end of the first-stage heat exchange surface, and the water supply end of the first heat collection pipeline is connected with the other end of the first-stage heat exchange surface; the heat pump unit and the second heat collecting pipeline have the advantages that sensible heat energy of the flue gas can be absorbed and utilized through the first-stage heat exchange surface, latent heat energy of the flue gas can be absorbed and utilized through the second-stage heat exchange surface, accordingly, the waste heat of the flue gas is absorbed and utilized, the utilization rate of the waste heat of the flue gas is improved, and the size of the heat exchanger is reduced.

The device has the following defects that when the device is used, the water is heated simply by using the waste heat of the flue gas, the latent heat of the water when the water is converted from liquid to gas cannot be fully utilized, the device cannot adapt to high-temperature flue gas, the device can only provide hot water, multiple functions of heating and refrigerating cannot be synchronously performed, and the heat utilization efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the problem that exists with not enough above-mentioned, provide an industry waste heat air conditioner refrigerating system, promoted holistic work efficiency.

The utility model solves the technical problems that:

(1) When the device is used, water is heated simply by using the waste heat of the flue gas, the latent heat of the water in the process of converting liquid into gas cannot be fully utilized, and the device cannot adapt to high-temperature flue gas;

(2) The device can only provide hot water, can not synchronously perform multiple functions of heating and refrigerating, and has low heat utilization efficiency.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an industry waste heat air conditioner refrigerating system, including lithium bromide refrigerator body, the one end of lithium bromide refrigerator body is provided with the cooling box that is used for cooling down the high temperature flue gas, one side of lithium bromide refrigerator body is provided with the cooling tower, lithium bromide refrigerator body is linked together through thin solution pipe and cooling box, the cooling box is linked together with the cooling tower through thick solution pipe and steam pipe, lithium bromide refrigerator body is linked together through low temperature solution pipe and low temperature water pipe and cooling tower, the one end through connection that the cooling box is close to thin solution pipe has and is used for the exhaust pipe of the flue gas exhaust through the cooling, the one end through connection that the cooling box is close to thick solution pipe has the inlet tobacco pipe that is used for being linked together with the fume extractor output, the refrigerant pipe that is used for outwards exporting the low temperature refrigerant is installed to the other end of lithium bromide refrigerator body.

Preferably, a heat insulation layer used for isolating heat and preventing the temperature of the periphery of the cooling box from being too high is arranged on the inner side wall of the cooling box, a heat-resistant layer bearing high-temperature corrosion of smoke is arranged on the inner side wall of the heat insulation layer, and the smoke exhaust pipe and the smoke inlet pipe are connected with the side wall of the cooling box through connecting pipe sleeves.

Preferably, the middle part of the inner side of the cooling box is provided with a plurality of evaporation trays for conducting heat side by side, and the top of each evaporation tray is connected with a steam collection cover for collecting steam in a penetrating manner.

Preferably, one side that is located the pipe of discharging fume in the cooling box is provided with annotates the liquid standpipe, and the upper end of annotating the liquid standpipe runs through the cooling box and is linked together with weak solution pipe, and one side through connection who annotates the liquid standpipe has a plurality of to be the liquid distribution pipe of equidistance evenly distributed, liquid distribution pipe and evaporating dish one-to-one, and liquid distribution pipe and the evaporating dish through connection that corresponds.

Preferably, a first liquid guide plate is arranged on one side of the evaporation disc and on one side of the lower end of the liquid distribution pipe, and a second liquid guide plate is arranged on the other side of the lower end of the liquid distribution pipe in the evaporation disc.

Preferably, the cross-section of the first liquid guide plate is S-shaped, the middle part of the first liquid guide plate is inclined, the second liquid guide plate is inclined and matched with the first liquid guide plate, one side of the second liquid guide plate is fixedly connected with the inner side wall of the evaporation disc, and a gap is kept between the other side of the second liquid guide plate and the middle part of the first liquid guide plate.

Preferably, a plurality of first heat-conducting plates which are uniformly distributed at equal intervals are fixedly connected to the upper surface of the bottom of the inner side of the evaporation disc, one end of each first heat-conducting plate is fixedly connected with the first liquid guide plate, a plurality of grid-shaped grooves which are uniformly distributed at equal intervals are formed in the lower portion of each first liquid guide plate in a penetrating mode, and the grid-shaped grooves and the first heat-conducting plates are arranged in a staggered mode and located between every two adjacent first heat-conducting plates.

Preferably, the other end of the evaporation pan close to the first heat conduction plate is of an open structure, and the evaporation pan is communicated with a concentrated solution pipe located on one side of the evaporation pan through a solution communicating pipe.

Preferably, the top fixedly connected with second heat-conducting plate of first heat-conducting plate, the cover is collected to the steam is linked together through steam communicating pipe and steam conduit, and one side that the cover is close to the liquid distribution pipe is the arcsurface form to the steam.

The beneficial effects of the utility model are that:

(1) Injecting the lithium bromide dilute solution into the liquid injection vertical pipe through the dilute solution pipe by the lithium bromide refrigerator body, then injecting the lithium bromide dilute solution into one side of the evaporation disc one by one through each liquid distribution pipe communicated with the liquid injection vertical pipe, the evaporating disc is used for containing a lithium bromide dilute solution which is dispersed on the lower side surface of the first liquid guide plate under the common limit of a gap formed between the first liquid guide plate and the second liquid guide plate, so that the lithium bromide dilute solution uniformly flows to the bottom of the evaporation disc along the lower part of the first liquid guide plate and then flows to the space between every two adjacent first heat conduction plates through the grid-shaped grooves on the first liquid guide plate, the lithium bromide dilute solution in the evaporation tray is divided into a plurality of liquid flows through the diversion of the first liquid guide plate and the second liquid guide plate and the division of each first heat conduction plate, after the heat conducted by the evaporation disc is conducted into the lithium bromide dilute solution through the first heat conducting plate, the shunted lithium bromide dilute solution is quickly heated and heated, thereby improving the boiling speed of water in the lithium bromide dilute solution, quickly flattening the lithium bromide dilute solution contained in the evaporating pan through the large cross-sectional area and the flat thickness of the evaporating pan, the heat in the flue gas is quickly conducted to the lithium bromide dilute solution contained in the evaporation tray through the quick heat conduction of the metal material of the evaporation tray, the heat of the flue gas is further conducted to the moisture in the evaporation tray through the second heat conduction plate, when the water vapor is accumulated in the vapor collecting cover, the water vapor is continuously heated through the second heat conducting plate, so that the latent heat capacity of the water vapor is further utilized for absorbing heat, meanwhile, the heat conducting efficiency and the heating area are improved, the cooling and heat absorbing capacity of the flue gas is improved, so that the lithium bromide dilute solution can quickly absorb heat and boil, thereby absorbing the heat of the flue gas and reducing the temperature.

(2) The lithium bromide refrigerator body cools the refrigerant, low-temperature refrigerant is output outwards, dilute lithium bromide solution in the refrigeration process is conveyed to the cooling box through the dilute solution pipe, meanwhile, the cooling box guides high-temperature smoke gas exhausted by smoke exhaust equipment into the cooling box through the smoke inlet pipe, the dilute lithium bromide solution is heated by using heat of the high-temperature smoke gas, water in the dilute lithium bromide solution absorbs heat and is heated and boiled, the heat is absorbed in a water vapor mode and is exhausted into the cooling tower through the steam guide pipe to be cooled, then the water vapor is cooled into low-temperature water, the low-temperature water is exhausted into the lithium bromide refrigerator body through the low-temperature water pipe, the dilute lithium bromide solution is heated in the cooling box and then a large amount of water is exhausted to form high-temperature lithium bromide concentrated solution, the high-temperature lithium bromide concentrated solution is exhausted into the cooling tower through the concentrated solution pipe to be cooled to form low-temperature lithium bromide solution, then the low-temperature lithium bromide concentrated solution is conveyed into the lithium bromide refrigerator body through the low-temperature solution pipe, the low-temperature lithium bromide concentrated solution is combined with the low-temperature water phase through the lithium bromide refrigerator body again to perform refrigeration on the refrigerant, the high-temperature waste heat is fully utilized, and the high-temperature waste heat is synchronously, and the high-temperature waste heat is fully utilized.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the cooling box of the present invention;

fig. 3 is a schematic view of the internal structure of the evaporation pan of the present invention;

in the figure: 1. a lithium bromide refrigerator body; 2. a cooling box; 3. a cooling tower; 4. a dilute solution pipe; 5. a smoke exhaust pipe; 6. a smoke inlet pipe; 7. a concentrated solution pipe; 8. a steam conduit; 9. a low-temperature liquid dissolving tube; 10. a low-temperature water pipe; 11. a refrigerant pipe; 12. a thermal insulation layer; 13. a heat resistant layer; 14. a connecting pipe sleeve; 15. injecting a liquid standpipe; 16. an evaporation pan; 17. a steam collection hood; 18. a liquid separating pipe; 19. a first liquid guide plate; 20. a second liquid guide plate; 21. a first heat-conducting plate; 22. a second heat-conducting plate; 23. a vapor communicating tube; 24. and a solution communicating pipe.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-3: the utility model provides an industry waste heat air conditioner refrigerating system, including lithium bromide refrigerator body 1, the one end of lithium bromide refrigerator body 1 is provided with the cooling box 2 that is used for cooling down the high temperature flue gas, one side of lithium bromide refrigerator body 1 is provided with cooling tower 3, lithium bromide refrigerator body 1 is linked together through weak solution pipe 4 and cooling box 2, cooling box 2 is linked together through dense solution pipe 7 and steam conduit 8 and cooling tower 3, lithium bromide refrigerator body 1 is linked together through low temperature solution pipe 9 and low temperature water pipe 10 and cooling tower 3, cooling box 2 is close to the one end through connection of weak solution pipe 4 and is used for the pipe 5 of discharging fume through the flue gas exhaust of cooling, cooling box 2 is close to the one end through connection of dense solution pipe 7 and is used for advancing the tobacco pipe 6 that is linked together with the fume extractor output, the refrigerant pipe 11 that is used for outwards exporting low temperature is installed to the refrigerant of lithium bromide refrigerator body 1's the other end.

When the refrigerator works, the lithium bromide refrigerator body 1 cools and refrigerates a refrigerant, low-temperature refrigerants are output outwards, dilute lithium bromide solution in the refrigerating process is conveyed to the cooling box 2 through the dilute solution pipe 4, meanwhile, the cooling box 2 guides high-temperature smoke exhausted by smoke exhaust equipment into the cooling box 2 through the smoke inlet pipe 6, the dilute lithium bromide solution is heated by using the heat of the high-temperature smoke, water in the dilute lithium bromide solution absorbs heat, is heated and boiled, the heat is absorbed in a steam mode and is exhausted into the cooling tower 3 through the steam guide pipe 8 to be cooled, then the steam is cooled into low-temperature water, the low-temperature water is exhausted into the lithium bromide refrigerator body 1 through the low-temperature water pipe 10, the dilute lithium bromide solution is heated in the cooling box 2, a large amount of water is exhausted out to form high-temperature lithium bromide concentrated solution, the high-temperature lithium bromide concentrated solution is exhausted into the cooling tower 3 through the concentrated lithium bromide solution pipe 7 to form low-temperature lithium bromide solution, the low-temperature lithium bromide concentrated solution is then conveyed into the lithium bromide refrigerator body 1 through the low-temperature solution liquid pipe 9, the low-temperature lithium bromide refrigerator body 1 and the low-temperature refrigerant solution are combined with the high-temperature refrigerator body 1 to fully cool the high-temperature lithium bromide solution, the high-temperature concentrated solution, the high-temperature refrigerating industrial waste heat is used for refrigerating, and the high-temperature steam refrigerating industrial waste heat is fully utilized, and the industrial refrigeration, and the industrial waste heat is fully, and the industrial refrigeration, and the industrial waste heat is utilized, and the industrial refrigeration.

The inner side wall of the cooling box 2 is provided with a heat insulation layer 12 for isolating heat and preventing the temperature of the periphery of the cooling box 2 from being too high, the inner side wall of the heat insulation layer 12 is provided with a heat-resistant layer 13 bearing high-temperature corrosion of flue gas, and the smoke exhaust pipe 5 and the smoke inlet pipe 6 are connected with the side wall of the cooling box 2 through a connecting pipe sleeve 14.

The inboard middle part of cooling box 2 is provided with a plurality of side by side and is used for conducting the evaporating pan 16 of heat, the top through connection of evaporating pan 16 has the steam collection cover 17 that is used for collecting vapor, in operation, through the dilute solution of evaporating pan 16 splendid attire lithium bromide, the dilute solution of splendid attire lithium bromide is shakeout fast with flat thickness through the large cross sectional area of evaporating pan 16, and the metal material through evaporating pan 16 self conducts heat fast, conduct the heat in the flue gas to the dilute solution of lithium bromide of splendid attire fast, thereby make the dilute solution of lithium bromide absorb heat fast and the boiling, thereby absorb the flue gas heat and cool down.

One side that is located pipe 5 of discharging fume in cooling box 2 is provided with annotates liquid standpipe 15, the upper end of annotating liquid standpipe 15 runs through cooling box 2 and is linked together with weak solution pipe 4, the one side through connection who annotates liquid standpipe 15 has a plurality of to be the liquid distribution pipe 18 of equidistance evenly distributed, divide liquid pipe 18 and evaporating dish 16 one-to-one, and divide liquid pipe 18 and the evaporating dish 16 through connection that corresponds, in operation, inject the liquid standpipe 15 into through weak solution pipe 4 with the lithium bromide weak solution through lithium bromide refrigerator body 1, the branch liquid pipe 18 that is linked together with annotate liquid standpipe 15 afterwards injects the one side of evaporating dish 16 with the weak solution of lithium bromide one-to-one through each.

A first liquid guide plate 19 is arranged on one side of the evaporation disc 16 and on one side of the lower end of the liquid distribution pipe 18, a second liquid guide plate 20 is arranged in the evaporation disc 16 and on the other side of the lower end of the liquid distribution pipe 18, the cross section of the first liquid guide plate 19 is S-shaped, the middle part of the first liquid guide plate 19 is inclined, the second liquid guide plate 20 is inclined and matched with the first liquid guide plate 19, one side of the second liquid guide plate 20 is fixedly connected with the inner side wall of the evaporation disc 16, a gap is kept between the other side of the second liquid guide plate 20 and the middle part of the first liquid guide plate 19, a plurality of first heat conduction plates 21 which are uniformly distributed at equal intervals are fixedly connected with the upper surface of the bottom of the inner side of the evaporation disc 16, one end of each first heat conduction plate 21 is fixedly connected with the first liquid guide plate 19, a plurality of grid-shaped grooves which are uniformly distributed at equal intervals are formed in a penetrating manner are formed in the lower part of the first liquid guide plate 19, the grid-shaped grooves are staggered with the first heat conduction plates 21 and are positioned between two adjacent first heat conduction plates 21, the evaporation disc 16 is in a structure close to the first liquid guide plate 21, and the evaporation disc 16 is communicated with the concentrated solution distribution pipe 7 through an opening 24;

during operation, the dilute lithium bromide solution is guided into the evaporation disc 16 through the liquid dividing pipe 18, during injection, the dilute lithium bromide solution is dispersed on the lower side surface of the first liquid guide plate 19 under the common limit of the gap formed between the first liquid guide plate 19 and the second liquid guide plate 20, so that the dilute lithium bromide solution uniformly flows to the bottom of the evaporation disc 16 along the lower part of the first liquid guide plate 19, and then flows to the positions between the adjacent first heat conduction plates 21 through the grid grooves on the first liquid guide plate 19, the dilute lithium bromide solution in the evaporation disc 16 is divided into a plurality of liquid flows through the diversion of the first liquid guide plate 19 and the second liquid guide plate 20 and the division of each first heat conduction plate 21, after the heat conducted by the evaporation disc 16 is conducted into the dilute lithium bromide solution through the first heat conduction plates 21, the divided dilute lithium bromide solution is rapidly heated and warmed, thereby increasing the boiling speed of water in the dilute lithium bromide solution, increasing the discharging efficiency of water, and increasing the concentration of the produced concentrated lithium bromide solution.

The top fixedly connected with second heat-conducting plate 22 of first heat-conducting plate 21, steam is collected cover 17 and is linked together through steam communicating pipe 23 and steam pipe 8, steam is collected cover 17 and is close to the one side of liquid distribution pipe 18 and is the arcane face form, in operation, further in leading-in moisture to the evaporating pan 16 of flue gas heat through second heat-conducting plate 22, when vapor gathers in steam is collected cover 17, thereby continuously heat the latent heat ability that further utilizes vapor to absorb heat through second heat-conducting plate 22, improve heat conduction efficiency and heating area simultaneously, promote the cooling heat absorption ability to the flue gas.

When the utility model is used, a worker firstly cools and refrigerates the refrigerant through the lithium bromide refrigerator body 1, outputs the low-temperature refrigerant outwards, and conveys the lithium bromide dilute solution in the refrigerating process to the cooling box 2 through the dilute solution pipe 4, simultaneously the cooling box 2 guides the high-temperature smoke discharged by the smoke exhaust equipment into the cooling box 2 through the smoke inlet pipe 6, the heat of the high-temperature smoke is utilized to heat the lithium bromide dilute solution, so that the water in the lithium bromide dilute solution absorbs heat and warms up and boils, absorbs the heat in a steam mode and is discharged into the cooling tower 3 through the steam conduit 8 for cooling, then the steam is cooled into low-temperature water, and is discharged into the lithium bromide refrigerator body 1 through the low-temperature water pipe 10, the dilute lithium bromide solution is heated in the cooling box 2, a large amount of water is discharged to form a high-temperature lithium bromide concentrated solution, the high-temperature lithium bromide concentrated solution is discharged into the cooling tower 3 through the concentrated solution pipe 7 to be cooled to form a low-temperature lithium bromide concentrated solution, then the low-temperature lithium bromide concentrated solution is sent into the lithium bromide refrigerator body 1 through the low-temperature solution pipe 9, the low-temperature lithium bromide concentrated solution is combined with low-temperature water through the lithium bromide refrigerator body 1 again to cool a refrigerant, industrial waste heat is fully absorbed, heat absorption and refrigeration are synchronously performed, hot water is supplied to the cooling tower 3 by using heat of high-temperature steam and the high-temperature lithium bromide concentrated solution, and accordingly the industrial waste heat is fully utilized and heat utilization efficiency is improved;

dilute lithium bromide solution is injected into a liquid injection vertical pipe 15 through a dilute solution pipe 4 by a lithium bromide refrigerator body 1, then the dilute lithium bromide solution is injected into one side of an evaporation disc 16 one by one through liquid distribution pipes 18 communicated with the liquid injection vertical pipe 15, the dilute lithium bromide solution is contained in the evaporation disc 16, and is dispersed on the lower side surface of a first liquid guide plate 19 under the common limit of a gap formed between the first liquid guide plate 19 and a second liquid guide plate 20, so that the dilute lithium bromide solution uniformly flows to the bottom of the evaporation disc 16 along the lower part of the first liquid guide plate 19, then flows to the space between adjacent first heat conduction plates 21 through grid-shaped grooves on the first liquid guide plate 19, and the dilute lithium bromide solution in the evaporation disc 16 is distributed into a plurality of liquid flows through the flow guide of the first liquid guide plate 19 and the second liquid guide plate 20 and the distribution of each first heat conduction plate 21, after the heat conducted by the evaporation disc 16 is conducted into the lithium bromide dilute solution through the first heat conduction plate 21, the shunted lithium bromide dilute solution is rapidly heated and heated, so that the boiling speed of water in the lithium bromide dilute solution is increased, the contained lithium bromide dilute solution is rapidly flattened through the large cross-sectional area and the flat thickness of the evaporation disc 16, the heat in the flue gas is rapidly conducted into the contained lithium bromide dilute solution through the metal material of the evaporation disc 16, the heat in the flue gas is further conducted into the moisture in the evaporation disc 16 through the second heat conduction plate 22, when the water vapor is accumulated in the steam collection cover 17, the water vapor is continuously heated through the second heat conduction plate 22, so that the latent heat capacity of the water vapor is further utilized for absorbing heat, meanwhile, the heat conduction efficiency and the heating area are increased, the cooling and heat absorption capacity of the flue gas is improved, and the lithium bromide dilute solution is rapidly absorbed and boiled, thereby absorbing the heat of the flue gas and reducing the temperature.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the present invention made by the technical matters of the present invention are also within the technical scope of the present invention.

Claims (9)

1. The utility model provides an industry waste heat air conditioner refrigerating system, its characterized in that, includes lithium bromide refrigerator body (1), the one end of lithium bromide refrigerator body (1) is provided with cooling box (2) that are used for cooling the high temperature flue gas, one side of lithium bromide refrigerator body (1) is provided with cooling tower (3), lithium bromide refrigerator body (1) is linked together through dilute solution pipe (4) and cooling box (2), cooling box (2) are linked together through dense solution pipe (7) and steam conduit (8) and cooling tower (3), lithium bromide refrigerator body (1) is linked together through low temperature solution pipe (9) and low temperature water pipe (10) and cooling tower (3), the one end that cooling box (2) are close to dilute solution pipe (4) link up and are connected with and are used for flue gas exhaust pipe (5) through the flue gas discharge of cooling, the one end that cooling box (2) are close to dense solution pipe (7) link up and are connected with inlet smoke pipe (6) that are used for being linked together with the smoke exhaust equipment output, the other end of lithium bromide refrigerator body (1) is installed and is used for outside low temperature output pipe (11).

2. The industrial waste heat air-conditioning and refrigerating system as claimed in claim 1, wherein a heat insulating layer (12) for insulating heat and preventing the temperature of the periphery of the cooling box (2) from being too high is arranged on the inner side wall of the cooling box (2), a heat resistant layer (13) for bearing high-temperature corrosion of flue gas is arranged on the inner side wall of the heat insulating layer (12), and the smoke exhaust pipe (5) and the smoke inlet pipe (6) are connected with the side wall of the cooling box (2) through a connecting pipe sleeve (14).

3. The industrial waste heat air-conditioning and refrigerating system as claimed in claim 1, wherein a plurality of evaporation trays (16) for conducting heat are arranged in parallel in the middle of the inner side of the cooling box (2), and a steam collecting cover (17) for collecting steam is connected to the top of the evaporation trays (16) in a penetrating manner.

4. The industrial waste heat air conditioning and refrigerating system according to claim 1, wherein a liquid injection vertical pipe (15) is arranged at one side of the smoke exhaust pipe (5) in the cooling box (2), the upper end of the liquid injection vertical pipe (15) penetrates through the cooling box (2) and is communicated with the dilute solution pipe (4), one side of the liquid injection vertical pipe (15) is connected with a plurality of liquid distribution pipes (18) which are uniformly distributed at equal intervals in a penetrating manner, the liquid distribution pipes (18) correspond to the evaporation trays (16) one by one, and the liquid distribution pipes (18) are connected with the corresponding evaporation trays (16) in a penetrating manner.

5. The air-conditioning and refrigerating system using industrial waste heat as claimed in claim 3, characterized in that a first liquid guide plate (19) is arranged on one side of the evaporation pan (16) and on one side of the lower end of the liquid distribution pipe (18), and a second liquid guide plate (20) is arranged on the other side of the lower end of the liquid distribution pipe (18) and in the evaporation pan (16).

6. The air-conditioning and refrigerating system using industrial waste heat as claimed in claim 5, wherein the cross section of the first liquid guide plate (19) is S-shaped, the middle part of the first liquid guide plate (19) is inclined, the second liquid guide plate (20) is inclined and matched with the first liquid guide plate (19), one side of the second liquid guide plate (20) is fixedly connected with the inner side wall of the evaporation pan (16), and a gap is maintained between the other side of the second liquid guide plate (20) and the middle part of the first liquid guide plate (19).

7. The industrial waste heat air-conditioning and refrigerating system as claimed in claim 3, wherein a plurality of first heat conducting plates (21) which are uniformly distributed at equal intervals are fixedly connected to the upper surface of the inner bottom of the evaporation pan (16), one end of each first heat conducting plate (21) is fixedly connected with the first liquid guiding plate (19), a plurality of grid grooves which are uniformly distributed at equal intervals are formed in the lower portion of each first liquid guiding plate (19) in a penetrating manner, and the grid grooves are staggered with the first heat conducting plates (21) and located between two adjacent first heat conducting plates (21).

8. The air-conditioning and refrigerating system using the industrial waste heat as claimed in claim 7, wherein the other end of the evaporation pan (16) close to the first heat conducting plate (21) is of an open structure, and the evaporation pan (16) is communicated with a concentrated solution pipe (7) on one side of the evaporation pan (16) through a solution communicating pipe (24).

9. The industrial waste heat air-conditioning and refrigerating system as claimed in claim 7, wherein a second heat conducting plate (22) is fixedly connected to the top of the first heat conducting plate (21), the steam collecting cover (17) is communicated with the steam guide pipe (8) through a steam communicating pipe (23), and one side of the steam collecting cover (17) close to the liquid distributing pipe (18) is arc-surface-shaped.

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