CN213481040U

CN213481040U - Industrial equipment waste heat recycling system

Info

Publication number: CN213481040U
Application number: CN202022360359.3U
Authority: CN
Inventors: 唐俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-18
Anticipated expiration: 2030-10-21

Abstract

The utility model belongs to the technical field of waste heat recovery, in particular to a waste heat recycling system of industrial equipment, which comprises a water cooling device, an evaporator and a circulating water pipeline; the water cooling device can reduce the boiling points of liquid in the water cooler and the evaporation chamber, the circulating water pipeline can convey heat generated by the waste heat supply system into the heating chamber and exchange heat with evaporation concentrated liquid in the evaporation chamber in the heating chamber to absorb and utilize the heat generated by the waste heat supply system, so that the occurrence of heat energy loss is reduced; and the liquid in the circulating water pipeline works in the closed circulating space and cannot interfere with the evaporation concentrated solution in the evaporation chamber, so that the water balance and heat balance state in the evaporator cannot be broken, and the working state of the evaporator is more stable.

Description

Industrial equipment waste heat recycling system

Technical Field

The utility model belongs to the technical field of waste heat recovery, concretely relates to industrial equipment waste heat recycling system.

Background

In the production of alumina, flue gas such as sintering method flue gas, roasting workshop flue gas, roasting fluidized bed heat, exhaust gas of a digestion workshop, lime burning flue gas, coal gas manufacturing gas, thermoelectric boiler flue gas and the like contains a large amount of waste heat, but because enough low-temperature cold sources and non-caking cold sources are not available, only a small amount of cold sources in a system are used as media, and a heat exchanger is used for recovering a small amount of heat (for example, roasting is used for recovering only heat at the temperature of 120 plus 165 ℃, not recovering water in the flue gas and changing the gasification latent heat into liquid water), and most of the heat is discharged along with the flue gas, so that energy loss is caused. Therefore, the invention of a recycling system capable of recycling waste heat generated in the production process of an industrial production system is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that prior art exists, the utility model provides an industrial equipment waste heat recycling system to a large amount of heats that produce can't be recycled and lead to energy loss's technical problem in the industrial production who exists among the solution prior art.

The utility model discloses a following technical scheme specifically realizes:

a waste heat recycling system of industrial equipment comprises a water cooling device, an evaporator and a circulating water pipeline;

the water cooling device comprises a water cooler, a hot water pool and a cold water pool, wherein the water outlet end of the cold water pool is communicated with the water cooler through a cold water pump, the water cooler is arranged above the hot water pool, the water outlet end of the water cooler is provided with a negative pressure pipeline, the water outlet end of the negative pressure pipeline extends into the hot water pool, and the water outlet end of the hot water pool is communicated with the cold water pool;

the evaporator comprises an evaporation chamber and a heating chamber, the evaporation chamber is provided with a feeding hole, a discharging hole, a liquid outlet, a liquid return port and a steam outlet, the liquid outlet is communicated with the liquid return port, the steam outlet is communicated with the water cooler, the heating chamber is arranged in the evaporation chamber, the heating chamber is positioned between the liquid outlet and the liquid return port, and the heating chamber is provided with a steam inlet and a water return port;

the circulating water pipeline comprises a condensation water tank A, a condensation water tank B, a heat exchanger and a waste heat supply system, the waste heat supply system conducts heat exchange through the heat exchanger, a water outlet of the heat exchanger is communicated with the steam inlet through the condensation water tank A, and a water return port is communicated with a water inlet of the heat exchanger through the condensation water tank B.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, be provided with the liquid outlet on the condensation water pitcher A, condensation water pitcher A passes through the liquid outlet with condensation water pitcher B intercommunication.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, liquid outlet department is provided with the circulating pump, the liquid outlet passes through the circulating pump with return liquid mouth intercommunication, discharge gate department is provided with first discharge pump.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, water cooling plant still includes cooling tower and vacuum pump, be provided with the blast pipe on the water cooler, the vacuum pump sets up the end of giving vent to anger of blast pipe, the play water end of hot-water reservoir pass through the hot-water pump with the end intercommunication of intaking of cooling tower, the play water end of cooling tower with the cold water basin intercommunication.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, be provided with the baffle in the hot-water tank, the baffle will the hot-water tank divide into cistern and overflow tank, negative pressure pipeline's play water end is located in the cistern, just the baffle highly be higher than the height of negative pressure pipeline's play water end, the play water end of overflow tank passes through the hot-water pump with the end intercommunication of intaking of cooling tower.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, the heat exchanger with waste heat supply system's quantity is a plurality of, all the heat exchanger is connected through series connection or parallelly connected mode, waste heat supply system with the heat exchanger one-to-one sets up.

In order to better realize the utility model, the above structure is further optimized, the evaporator comprises an evaporator a and an evaporator B, the condensed water tank a comprises a first condensed water tank and a second condensed water tank;

a water outlet of the heat exchanger is communicated with a steam inlet of the evaporator A through the first condensed water tank, a steam outlet of the evaporator A is communicated with a steam inlet of the evaporator B, a discharge hole of the evaporator A is communicated with a feed hole of the evaporator B, and a water return hole of the evaporator A is communicated with the second condensed water tank; the steam outlet of the evaporator B is communicated with the water cooler, the water return port of the evaporator B is communicated with the condensed water tank B, a water outlet is formed in the condensed water tank B, and a water outlet pump is arranged at the water outlet.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, first condensation water pitcher with all be provided with the liquid outlet on the second condensation water pitcher, the liquid outlet of first condensation water pitcher with second condensation water pitcher intercommunication, the liquid outlet of second condensation water pitcher with condensation water pitcher B intercommunication, second condensation water pitcher with all be provided with first steam outlet on the condensation water pitcher B, the first steam outlet of second condensation water pitcher with evaporimeter B's steam inlet intercommunication, the first steam outlet of condensation water pitcher B with the water cooler intercommunication.

In order to better realize the utility model, the structure is further optimized, and the waste heat recycling system of the industrial equipment also comprises a flash evaporator and an evaporator C;

the flash evaporator is provided with a feeding port, a discharging port and a second steam outlet and comprises a flash evaporator A, a flash evaporator B and a flash evaporator C;

a steam inlet of the evaporator C is communicated with a new steam pipe of a boiler room, a water return port of the evaporator C is communicated with a boiler deaerator, a steam outlet of the evaporator C is communicated with a steam inlet of the evaporator A, and a discharge port of the evaporator C is communicated with a feeding port of the flash evaporator A;

the second steam outlet of the flash evaporator A is communicated with the steam inlet of the evaporator A, the feed opening of the flash evaporator A is communicated with the feed opening of the flash evaporator B, the second steam outlet of the flash evaporator B is communicated with the steam inlet of the evaporator B, the feed opening of the flash evaporator B is communicated with the feed opening of the flash evaporator C, the second steam outlet of the flash evaporator C is communicated with the water cooler, and a second discharge pump is arranged at the feed opening of the flash evaporator C.

In order to realize better the utility model discloses, do further optimization in above-mentioned structure, this industrial equipment waste heat recycling system still includes evaporimeter D, third condensation water pitcher and punishment in advance pump, evaporimeter C's steam outlet with evaporimeter D's steam inlet intercommunication, evaporimeter D's steam outlet with evaporimeter A's steam inlet intercommunication, evaporimeter D's return water mouth with third condensation water pitcher intercommunication, third condensation water pitcher's first steam outlet with evaporimeter A's steam inlet intercommunication, third condensation water pitcher's liquid outlet with first condensation water pitcher intercommunication, evaporimeter D's feed inlet passes through punishment in advance pump with evaporimeter A's discharge gate intercommunication, evaporimeter D's discharge gate with evaporimeter C's feed inlet intercommunication.

To sum up, the utility model discloses following technological effect has:

the waste heat recycling system of the industrial equipment utilizes the water cooling device to reduce the boiling point of the liquid in the water cooler and the evaporation chamber so that the evaporation concentrated solution in the evaporation chamber can absorb a large amount of heat, the circulating water pipeline can convey the heat generated by the waste heat supply system into the heating chamber and exchange heat with the evaporation concentrated solution in the evaporation chamber in the heating chamber so as to recycle the heat generated by the waste heat supply system, and thus the recycling benefit of heat energy is increased; and the soft water in the circulating water pipeline works in the closed circulating space, the soft water cannot be crusted in the pipeline of the circulating water pipeline and cannot interfere with the evaporation concentrated solution in the evaporation chamber, so that the water balance and heat balance states in the evaporator and the production system cannot be broken, and the flow of the circulating soft water can be determined according to the quantity of the residual heat quantity to be recovered.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a waste heat recycling system of an industrial plant according to a first embodiment;

FIG. 2 is a schematic structural diagram of a water cooling device in the waste heat recycling system of the industrial equipment;

FIG. 3 is a schematic structural diagram of an evaporator in the waste heat recycling system of the industrial equipment of the present invention;

FIG. 4 is a schematic structural diagram of a circulating water pipeline in the waste heat recycling system of the industrial equipment of the present invention;

fig. 5 is a schematic structural diagram of a waste heat recycling system of an industrial plant according to the second embodiment;

fig. 6 is a schematic structural diagram of a waste heat recycling system of an industrial plant according to the third embodiment;

fig. 7 is a diagram illustrating a connection structure between an evaporator and a flash evaporator in the waste heat recycling system of the industrial plant described in the third embodiment;

fig. 8 is a schematic structural diagram of a flash evaporator in the waste heat recycling system of the industrial equipment described in the third embodiment.

Reference numerals:

10. a water cooling device; 101. a water cooler; 102. a hot water tank; 103. a cold water tank; 104. a negative pressure pipeline; 105. a cooling tower; 106. a vacuum pump; 107. a partition plate;

20. an evaporator; 201. a feed inlet; 202. a discharge port; 203. a liquid outlet; 204. a liquid return port; 205. a steam outlet; 206. a steam inlet; 207. a water return port; 208. a first discharge pump; 209. a circulation pump; 21. an evaporator A; 22. an evaporator B; 23. an evaporator C; 24. an evaporator D;

30. a circulating water line; 31. a condensed water tank A; 311. a first condensate tank; 312. a second condensate tank; 313. a third condensate tank; 32. a condensate tank B; 321. a water outlet; 322. discharging the water pump; 33. a heat exchanger; 34. a waste heat supply system; 35. a flash evaporator; 3501. a feeding port; 3502. a feeding port; 3503. a second steam outlet; 3504. a material passing pump; 3505. a second discharge pump; 351. a flash evaporator A; 352. a flash evaporator B; 353. and a flash evaporator C.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 4:

a waste heat recycling system of industrial equipment comprises a water cooling device 10, an evaporator 20 and a circulating water pipeline 30;

the water cooling device 10 comprises a water cooler 101, a hot water tank 102 and a cold water tank 103, wherein the water outlet end of the cold water tank 103 is communicated with the water cooler 101 through a cold water pump, the water cooler 101 is arranged above the hot water tank 102, the water outlet end of the water cooler 101 is provided with a negative pressure pipeline 104, the water outlet end of the negative pressure pipeline 104 extends into the hot water tank 102, and the water outlet end of the hot water tank 102 is communicated with the cold water tank 103;

the evaporator 20 comprises an evaporation chamber and a heating chamber, the evaporation chamber is provided with a feed inlet 201, a discharge outlet 202, a liquid outlet 203, a liquid return port 204 and a steam outlet 205, the liquid outlet 203 is communicated with the liquid return port 204, the steam outlet 205 is communicated with the water cooler 101, the heating chamber is arranged in the evaporation chamber, the heating chamber is positioned between the liquid outlet 203 and the liquid return port 204, and the heating chamber is provided with a steam inlet 206 and a water return port 207;

the circulating water pipeline 30 comprises a condensation water tank A31, a condensation water tank B32, a heat exchanger 33 and a waste heat supply system 34, wherein the waste heat supply system 34 carries out heat exchange through the heat exchanger 33, a water outlet of the heat exchanger 33 is communicated with a steam inlet 206 through the condensation water tank A31, and a water return port 207 is communicated with a water inlet of the heat exchanger 33 through the condensation water tank B32.

When the industrial equipment waste heat recycling system with the structure is used, a worker can start the cold water pump to pump water in the cold water pool 103 into the water cooler 101, at the moment, the water in the water cooler 101 flows into the hot water pool 102 from the negative pressure pipeline 104 under the action of gravity, so that negative pressure is formed inside the water cooler 101, the boiling points of the water in the water cooler 101 and the evaporation chamber are reduced, and the evaporation concentrated solution in the evaporation chamber can absorb more heat;

then, the staff can start the circulating water pipeline 30, the medium in the circulating water pipeline 30 is pumped into the heat exchanger 33 by the water pump from the condensation water tank B32, the medium flows to the condensation water tank a31 after absorbing the heat released by the residual heat supply system 34, and a large amount of water vapor is formed in the condensation water tank B32, the water vapor in the condensation water tank B32 enters the heating chamber through the steam inlet 206 of the heating chamber, the evaporation concentrate in the evaporation chamber flows to the liquid return port 204 through the liquid outlet 203, and passes through the heating chamber during the flow of the evaporation concentrate and exchanges heat with the water vapor in the heating chamber, so that the temperature of the water vapor in the heating chamber is reduced and reduced into liquid medium, and the liquid medium can flow back to the condensation water tank B32 through the water return port 207 to complete the circulation of the medium in the circulating water pipeline;

after the evaporation concentrated solution in the evaporation chamber exchanges heat with the water vapor in the heating chamber, the water in the evaporation concentrated solution can form water vapor, the water vapor enters the water cooler 101 through the steam outlet 205 to be cooled, the solubility of the water in the evaporation concentrated solution can also be increased after the water in the evaporation concentrated solution is evaporated, and when the concentration of the water in the evaporation concentrated solution reaches the required range, a worker can discharge the evaporation concentrated solution with high concentration from the discharge port; the heat generated by the waste heat supply system 34 can be used for increasing the concentration of the evaporation concentrate, thereby effectively reducing the occurrence of heat energy loss.

It should be noted that the medium in the circulating water pipeline 30 is soft water, which does not generate scale in the pipeline during the circulation of the medium, thereby effectively avoiding the occurrence of the situation that the circulating water pipeline 30 is blocked by impurities.

Preferably, the height difference between the inlet and the outlet of the negative pressure pipeline 104 is greater than 10m, so that a water column negative pressure of 7.2m-10.1m is generated in the water cooler 101 and the evaporation chamber, the boiling point of water in the water cooler 101 and the evaporation chamber is 56 ℃ -60 ℃, and the industrial equipment waste heat recycling system can absorb more waste heat generated in the waste heat supply system.

Preferably, the condensed water tank a31 is provided with a liquid outlet through which the condensed water tank a31 is communicated with the condensed water tank B32, so that the medium which is not turned into water vapor in the condensed water tank a31 can flow into the condensed water tank B32 through the liquid outlet, thereby improving the backflow efficiency of the medium.

Preferably, a circulating pump 209 is disposed at the liquid outlet 203, the liquid outlet 203 is communicated with the liquid return port 204 through the circulating pump 209, and the evaporation concentrated liquid in the evaporation chamber can be pumped to the liquid outlet 203 through the circulating pump 209 and passes through the heating chamber in the process of flowing to the liquid return port 204, so that the evaporation concentrated liquid can exchange heat with the water vapor in the heating chamber, and the temperature of the evaporation concentrated liquid is increased.

Preferably, the discharge port 202 is provided with a first discharge pump 208, and the evaporation concentrate with increased concentration can be discharged and collected through the first discharge pump 208, so that the waste heat recycling system of the industrial equipment is more convenient to use.

Preferably, the water cooling device 10 further comprises a cooling tower 105 and a vacuum pump 106; wherein the content of the first and second substances,

an exhaust pipe is arranged on the water cooler 101, a vacuum pump 106 is arranged at the air outlet end of the exhaust pipe, and the vacuum pump 106 can exhaust the air in the water cooler 101 outwards so as to ensure the negative pressure state in the water cooler 101 and the evaporation chamber;

the cooling tower 105 is disposed at the water outlet end of the hot water tank 102, and the water outlet end of the cooling tower 105 is communicated with the cold water tank 103, so that the cooling tower 105 can increase the cooling time of water and the contact area between water and air, so that the water flowing out of the hot water tank 102 can be rapidly cooled, and the cooling effect of the water cooling device 10 can be effectively improved.

Preferably, a partition plate 107 is further disposed in the hot water tank 102, the partition plate 107 can divide the hot water tank 102 into a water storage tank and an overflow tank, the water outlet end of the negative pressure pipeline 104 is located in the water storage tank, the height of the partition plate 107 is higher than that of the water outlet end of the negative pressure pipeline 104, and the water outlet end of the overflow tank is communicated with the cooling tower 105 through a hot water pump;

in the working process, the water in the water storage tank is always immersed in the water outlet end of the negative pressure pipeline 104, so that the water outlet end of the negative pressure pipeline 104 is always in a sealing state, and the negative pressure state in the water cooler 101 and the evaporation chamber is better maintained.

Preferably, the number of the heat exchangers 33 and the waste heat supply systems 34 is multiple, all the heat exchangers 33 can be connected in series or in parallel, and the waste heat supply systems 34 and the heat exchangers 33 are arranged in one-to-one correspondence, so that the industrial equipment waste heat recycling system can recycle heat generated by the plurality of waste heat supply systems at the same time.

The waste heat supply system 34 may be a device (system) that generates high-temperature flue gas or high-temperature solution in industrial production.

Example two:

as shown in fig. 2, 3 and 5:

as a further optimization of the above embodiment, the above evaporator 20 includes an evaporator a21 and an evaporator B22, and the above condensed water tank a31 includes a first condensed water tank 311 and a second condensed water tank 312; wherein the content of the first and second substances,

the water outlet of the heat exchanger 33 is communicated with the steam inlet 206 of the evaporator A21 through a first condensed water tank 311, the steam outlet 205 of the evaporator A21 is communicated with the steam inlet 206 of the evaporator B22, the discharge port 202 of the evaporator A21 is communicated with the feed port 201 of the evaporator B22, and the water return port 207 of the evaporator A21 is communicated with a second condensed water tank 312;

the steam outlet 205 of the evaporator B22 is communicated with the water cooler 101, the water return port 207 of the evaporator B22 is communicated with the condensed water tank B32, a water outlet 321 is arranged on the condensed water tank B32, and a water outlet pump 322 is arranged at the water outlet 321.

During operation, the medium in the heat exchanger 33 can absorb heat generated by the waste heat supply system 34, and the heated medium flows into the first condensed water tank 311, at this time, a part of the medium entering the first condensed water tank 311 forms water vapor, and the water vapor enters the heating chamber of the evaporator a21 through the vapor inlet 206 and exchanges heat with the evaporation concentrate in the evaporator a21, so that the temperature of the evaporation concentrate is increased, and the moisture in the evaporation concentrate is evaporated, so that the solubility of the evaporation concentrate in the evaporator a21 is increased;

the water in the evaporation concentrated solution is changed into water vapor, and then enters the heating chamber of the evaporator B22 through the steam outlet 205 of the evaporator A21 and heats the evaporation concentrated solution in the evaporator B22, the water vapor in the heating chamber of the evaporator A21 forms liquid water after exchanging heat with the evaporation concentrated solution in the evaporator A21 and flows into the second condensation water tank 312 through the water return port 207, and the evaporation concentrated solution with the increased concentration in the evaporator A21 enters the evaporation chamber of the evaporator B22 through the discharge port 202;

the water vapor entering the evaporator B22 continuously exchanges heat with the evaporation concentrate in the evaporator B22 to evaporate moisture in the evaporation concentrate in the evaporator B22, so that the concentration of the evaporation concentrate in the evaporator B22 is continuously increased, and the water vapor generated by the evaporation concentrate flows to the water cooler 101 through the steam outlet 205 of the evaporator B22 to be cooled; and the water vapor entering the heating chamber of the evaporator B22 is condensed into liquid water after heat exchange with the evaporated concentrate, and flows into the condensed water tank B32 through the water return port 207.

And along with the increase of operating time, the moisture of evaporating in the evaporation concentrate also can enter into circulating water pipeline 30, leads to the water yield in circulating water pipeline 30 to increase gradually, and at this moment, the staff alright with let out the water in circulating water pipeline 30 through opening out water pump 322 to keep the water yield in circulating water pipeline 30, thereby make this industrial equipment waste heat cycle recovery system's operating condition more stable.

Preferably, the first condensed water tank 311 and the second condensed water tank 312 are both provided with a liquid outlet, the liquid outlet of the first condensed water tank 311 is communicated with the second condensed water tank 312, the liquid outlet of the second condensed water tank 312 is communicated with the condensed water tank B32, and liquid water in the first condensed water tank 311 and the second condensed water tank 312 can directly flow into the condensed water tank B32 through the liquid outlet, so as to improve the backflow efficiency of the medium.

Preferably, the second condensed water tank 312 and the condensed water tank B32 are both provided with a first steam outlet, and the first steam outlet of the second condensed water tank 312 is communicated with the steam inlet 206 of the evaporator B22, so that the steam entering the second condensed water tank 312 can enter the evaporator B22 to be continuously utilized, thereby effectively improving the utilization rate of the heat of the waste heat recycling system of the industrial equipment; a first steam outlet of the condensed water tank B32 is communicated with the water cooler 101, and the water vapor entering the condensed water tank B32 enters the water cooler 101 to accelerate the reduction of the water temperature.

It should be noted that the number of the evaporators 20 may also be multiple, the number of the condensed water tanks a31 is matched with the number of the evaporators 20, and the evaporators are arranged in a one-to-one correspondence, and the connection manner of all the evaporators 20 is completely the same as that of the evaporator a21 and the evaporator B22, and therefore, the description thereof will not be repeated.

Example three:

as shown in fig. 2, 3 and 6 to 8:

as a further optimization of the second embodiment, the industrial equipment waste heat recycling system further comprises a flash evaporator 35 and an evaporator C23; wherein the content of the first and second substances,

the flash evaporator 35 is provided with a feeding port 3501, a discharging port 3502 and a second steam outlet 3503, and the flash evaporator 35 comprises a flash evaporator A351, a flash evaporator B352 and a flash evaporator C353;

the steam inlet 206 of the evaporator C23 is communicated with a new steam pipe of a boiler room, the water return port 207 of the evaporator C23 is communicated with a deaerator of the boiler room, the steam outlet 205 of the evaporator C23 is communicated with the steam inlet 206 of the evaporator A21, and the discharge port 202 of the evaporator C23 is communicated with the feeding port 3501 of the flash evaporator A351;

the second steam outlet 3503 of the flash evaporator a351 is also communicated with the steam inlet 206 of the evaporator a21, the blanking outlet 3502 of the flash evaporator a351 is communicated with the feeding port 3501 of the flash evaporator B352, the second steam outlet 3503 of the flash evaporator B352 is communicated with the steam inlet 206 of the evaporator B22, the blanking outlet 3502 of the flash evaporator B352 is communicated with the feeding port 3501 of the flash evaporator C353, the second steam outlet 3503 of the flash evaporator C353 is communicated with the water cooler 101, and the blanking outlet 3502 of the flash evaporator C353 is provided with a second discharging pump 3505.

The water vapor generated by the boiler room can enter the evaporator C23 through a new steam pipe of the boiler room to heat the evaporation concentrated solution in the evaporator C23, and the water vapor generated by the boiler room can be condensed into liquid water after the heat exchange of the evaporation concentrated solution and flows into the boiler deaerator through the water return port 207 of the evaporator C23 to be continuously used; the water vapor generated by the evaporation concentrate in the evaporator C23 enters the evaporator A21 through the vapor outlet 205 of the evaporator C23 to heat the evaporation concentrate in the evaporator A21;

the concentrated evaporation liquid in the evaporator C23 with increased concentration enters the flash evaporator a351 through the discharge port 202, the water vapor generated by the concentrated evaporation liquid in the flash evaporator a351 during the flash evaporation process enters the evaporator a21 through the second vapor outlet 3503, and the concentrated evaporation liquid in the flash evaporator a351 with increased concentration enters the flash evaporator B352 through the discharge port 3502; the concentrated evaporated liquid with the concentration increased again in the flash evaporator B352 enters the flash evaporator C353 through the feed opening 3502, and the water vapor generated in the flash evaporator B352 in the flash evaporation process enters the evaporator B22 through the second vapor outlet 3503; the concentrated solution evaporated in the flash evaporator C353 can be discharged through the second discharging pump 3505, and the water vapor in the flash evaporator C353 can enter the water cooler 101 through the second vapor outlet 3503.

Preferably, the industrial equipment waste heat recycling system further comprises an evaporator D24, a third condensed water tank 313 and a material passing pump 3504; wherein the content of the first and second substances,

the steam outlet 205 of the evaporator C23 is communicated with the steam inlet 206 of the evaporator D24, the steam outlet 205 of the evaporator D24 is communicated with the steam inlet 206 of the evaporator a21, and the water return port 207 of the evaporator D24 is communicated with the third condensed water tank 313;

the water outlet of the heat exchanger 33 is communicated with the third condensed water tank 313, the first steam outlet of the third condensed water tank 313 is communicated with the steam inlet 206 of the evaporator A21, the liquid outlet of the third condensed water tank 313 is communicated with the first condensed water tank 311, the discharge port 202 of the evaporator A21 is communicated with the feed port 201 of the evaporator D24 through the material passing pump 3504, and the discharge port 202 of the evaporator D24 is communicated with the feed port 201 of the evaporator C23.

The number of the evaporators 20 and the number of the flash evaporators 35 may be plural, and specifically may be set according to factors such as the amount of heat to be recovered, the floor space, and the capital, the evaporator 20 is connected in the same manner as the evaporator a21 and the evaporator B22, and the flash evaporator 35 is connected in the same manner as the flash evaporator a351 and the flash evaporator B352.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an industrial equipment waste heat recycling system which characterized in that: comprises a water cooling device (10), an evaporator (20) and a circulating water pipeline (30);

the water cooling device (10) comprises a water cooler (101), a hot water pool (102) and a cold water pool (103), wherein the water outlet end of the cold water pool (103) is communicated with the water cooler (101) through a cold water pump, the water cooler (101) is arranged above the hot water pool (102), a negative pressure pipeline (104) is arranged at the water outlet end of the water cooler (101), the water outlet end of the negative pressure pipeline (104) extends into the hot water pool (102), and the water outlet end of the hot water pool (102) is communicated with the cold water pool (103);

the evaporator (20) comprises an evaporation chamber and a heating chamber, the evaporation chamber is provided with a feeding hole (201), a discharging hole (202), a liquid outlet (203), a liquid return hole (204) and a steam outlet (205), the liquid outlet (203) is communicated with the liquid return hole (204), the steam outlet (205) is communicated with the water cooler (101), the heating chamber is arranged in the evaporation chamber, the heating chamber is positioned between the liquid outlet (203) and the liquid return hole (204), and the heating chamber is provided with a steam inlet (206) and a water return hole (207);

circulating water line (30) are including condensate water jar A (31), condensate water jar B (32), heat exchanger (33) and waste heat feed system (34), waste heat feed system (34) process heat exchanger (33) carry out the heat exchange, the delivery port of heat exchanger (33) passes through condensate water jar A (31) with steam inlet (206) intercommunication, return water mouth (207) are passed through condensate water jar B (32) with the water inlet intercommunication of heat exchanger (33).

2. The industrial equipment waste heat recycling system of claim 1, characterized in that: the condensed water tank A (31) is provided with a liquid outlet, and the condensed water tank A (31) is communicated with the condensed water tank B (32) through the liquid outlet.

3. The industrial equipment waste heat recycling system of claim 2, characterized in that: the liquid outlet (203) is provided with a circulating pump (209), the liquid outlet (203) is communicated with the liquid return port (204) through the circulating pump (209), and the discharge port (202) is provided with a first discharge pump (208).

4. The industrial equipment waste heat recycling system of claim 3, characterized in that: the water cooling device (10) further comprises a cooling tower (105) and a vacuum pump (106), an exhaust pipe is arranged on the water cooler (101), the vacuum pump (106) is arranged at the air outlet end of the exhaust pipe, the water outlet end of the hot water pool (102) is communicated with the water inlet end of the cooling tower (105) through a hot water pump, and the water outlet end of the cooling tower (105) is communicated with the cold water pool (103).

5. The industrial equipment waste heat recycling system of claim 4, characterized in that: be provided with baffle (107) in hot-water tank (102), baffle (107) will hot-water tank (102) divide into cistern and overflow tank, the play water end of negative pressure pipeline (104) is located in the cistern, just the height of baffle (107) is higher than the height of the play water end of negative pressure pipeline (104), the play water end of overflow tank passes through the hot-water pump with the end intercommunication of intaking of cooling tower (105).

6. The industrial equipment waste heat recycling system according to any one of claims 1 to 5, characterized in that: the number of the heat exchangers (33) and the number of the waste heat supply systems (34) are multiple, all the heat exchangers (33) are connected in series or in parallel, and the waste heat supply systems (34) and the heat exchangers (33) are arranged in a one-to-one correspondence manner.

7. The industrial equipment waste heat recycling system of claim 6, characterized in that: the evaporator (20) comprises an evaporator A (21) and an evaporator B (22), and the condensed water tank A (31) comprises a first condensed water tank (311) and a second condensed water tank (312);

the water outlet of the heat exchanger (33) is communicated with the steam inlet (206) of the evaporator A (21) through the first condensed water tank (311), the steam outlet (205) of the evaporator A (21) is communicated with the steam inlet (206) of the evaporator B (22), the discharge hole (202) of the evaporator A (21) is communicated with the feed hole (201) of the evaporator B (22), and the water return hole (207) of the evaporator A (21) is communicated with the second condensed water tank (312); the steam outlet (205) of the evaporator B (22) is communicated with the water cooler (101), the water return port (207) of the evaporator B (22) is communicated with the condensed water tank B (32), a water outlet (321) is arranged on the condensed water tank B (32), and a water outlet pump (322) is arranged at the water outlet (321).

8. The industrial equipment waste heat recycling system of claim 7, wherein: the first condensed water tank (311) and the second condensed water tank (312) are both provided with liquid outlets, the liquid outlet of the first condensed water tank (311) is communicated with the second condensed water tank (312), the liquid outlet of the second condensed water tank (312) is communicated with the condensed water tank B (32), the second condensed water tank (312) is both provided with a first steam outlet on the condensed water tank B (32), the first steam outlet of the second condensed water tank (312) is communicated with the steam inlet (206) of the evaporator B (22), and the first steam outlet of the condensed water tank B (32) is communicated with the water cooler (101).

9. The industrial equipment waste heat recycling system of claim 8, wherein: further comprising a flash evaporator (35) and an evaporator C (23);

the flash evaporator (35) is provided with a feeding port (3501), a discharging port (3502) and a second steam outlet (3503), and the flash evaporator (35) comprises a flash evaporator A (351), a flash evaporator B (352) and a flash evaporator C (353);

a steam inlet (206) of the evaporator C (23) is communicated with a new steam pipe of a boiler room, a water return port (207) of the evaporator C (23) is communicated with a boiler deaerator, a steam outlet (205) of the evaporator C (23) is communicated with the steam inlet (206) of the evaporator A (21), and a discharge port (202) of the evaporator C (23) is communicated with a feeding port (3501) of the flash evaporator A (351);

the second steam outlet (3503) of the flash evaporator A (351) is communicated with the steam inlet (206) of the evaporator A (21), the feed outlet (3502) of the flash evaporator A (351) is communicated with the feed inlet (3501) of the flash evaporator B (352), the second steam outlet (3503) of the flash evaporator B (352) is communicated with the steam inlet (206) of the evaporator B (22), the feed outlet (3502) of the flash evaporator B (352) is communicated with the feed inlet (3501) of the flash evaporator C (353), the second steam outlet (3503) of the flash evaporator C (353) is communicated with the water cooler (101), and the feed outlet (3502) of the flash evaporator C (353) is provided with a second discharge pump (3505).

10. The industrial equipment waste heat recycling system of claim 9, wherein: also comprises an evaporator D (24), a third condensed water tank (313) and a material passing pump (3504), a vapor outlet (205) of the evaporator C (23) communicates with a vapor inlet (206) of the evaporator D (24), a vapor outlet (205) of the evaporator D (24) communicates with a vapor inlet (206) of the evaporator A (21), the water return port (207) of the evaporator D (24) is communicated with the third condensed water tank (313), a first steam outlet of the third condensed water tank (313) is communicated with a steam inlet (206) of the evaporator A (21), the liquid outlet of the third condensed water tank (313) is communicated with the first condensed water tank (311), the feed inlet (201) of the evaporator D (24) is communicated with the discharge outlet (202) of the evaporator A (21) through the material passing pump (3504), and the discharge hole (202) of the evaporator D (24) is communicated with the feed hole (201) of the evaporator C (23).