CN220205700U

CN220205700U - Autoclaved curing kettle heat recovery system

Info

Publication number: CN220205700U
Application number: CN202321483533.0U
Authority: CN
Inventors: 张化福; 王文杰; 杨俊玲; 张振涛; 李晓琼; 于泽; 李亚南; 吴振群
Original assignee: Technical Institute of Physics and Chemistry of CAS
Current assignee: Technical Institute of Physics and Chemistry of CAS
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-19
Anticipated expiration: 2033-06-12

Abstract

The utility model relates to the technical field of waste heat utilization of autoclaved curing kettles, and provides a heat recovery system of an autoclaved curing kettle, which comprises the following components: a kettle body; the heat exchange purification module is communicated with the kettle body through a first passage and is used for exchanging heat with exhaust steam in the kettle body and obtaining pure first steam; the compression enthalpy increasing module is connected with the heat exchange purification module and is used for compressing the first vapor to increase the enthalpy to obtain second vapor; and the steam energy storage module is connected with the compression enthalpy increasing module and is connected with the kettle body through a first loop and used for storing second steam and returning the second steam to the kettle body. So set up, can make the internal exhaust steam of cauldron carry out heat exchange with saturated pure water through heat transfer purification module, generate new impurity-free first steam, increase the enthalpy to first steam compression through compression increases the enthalpy module, use as heat source steam, both can carry out abundant recycle to the internal heat of cauldron, removed the impurity in the exhaust steam through heat exchange simultaneously, guaranteed the quality of product in the follow-up production.

Description

Autoclaved curing kettle heat recovery system

Technical Field

The utility model relates to the technical field of waste heat utilization of autoclaved curing kettles, in particular to a heat recovery system of an autoclaved curing kettle.

Background

Autoclaved curing is a main stage of hardening reaction and strength enhancement of aerated concrete blanks, and under autoclaved curing conditions, a series of physical and chemical reactions are carried out among various component materials of the aerated concrete to generate various hydration products.

After autoclaved curing, the exhaust steam still contains a large amount of heat, and if the exhaust steam is directly discharged, the energy source is wasted greatly, so that the high-pressure exhaust steam is generally recycled and stored by an energy storage tank in the related art, and the exhaust steam is conveniently refilled into the kettle body in the follow-up process so as to achieve the aim of recycling waste heat.

However, by adopting the mode, only high-pressure exhaust steam can be recovered and stored, and the problems of incomplete heat recovery and serious waste exist; in addition, a large amount of impurities exist in the waste steam, and certain influence on the quality of products can be caused after the kettle body is refilled.

Disclosure of Invention

The utility model provides a heat recovery system of an autoclaved curing kettle, which is used for reducing the problem that the heat recovery of waste steam is not thorough enough in the prior art, and impurities in the waste steam can influence the quality of products, so that the full recovery and utilization of waste heat are realized, and the quality of the products is ensured.

The utility model provides a heat recovery system of an autoclaved curing kettle, which comprises the following components:

a kettle body;

the heat exchange purification module is communicated with the kettle body through a first passage and is used for exchanging heat with exhaust steam in the kettle body and obtaining pure first steam;

the compression enthalpy increasing module is connected with the heat exchange purification module and is used for compressing the first vapor to increase the enthalpy to obtain second vapor;

and the steam energy storage module is connected with the compression enthalpy increasing module and is connected with the kettle body through a first loop and used for storing second steam and returning the second steam to the kettle body.

According to the heat recovery system of the autoclaved curing kettle, a second loop and a second path are communicated between the heat exchange purification module and the kettle body;

the second loop is used for allowing condensed water after heat exchange in the heat exchange purification module to flow back to the kettle body;

the second passage is used for enabling condensed water in the kettle body to return to the heat exchange purification module for heat exchange to obtain the first steam.

According to the autoclaved curing kettle heat recovery system provided by the utility model, at least two kettle bodies are arranged, and the first loop is respectively communicated with a plurality of kettle bodies through branches.

According to the heat recovery system of the autoclaved curing kettle, provided by the utility model, the heat recovery system further comprises a negative pressure piece, and the negative pressure piece is communicated with the kettle body through a third passage.

According to the heat recovery system of the autoclaved curing kettle provided by the utility model, the heat exchange purification module comprises:

the evaporator is used for exchanging heat with the heat in the kettle body and generating steam;

the first separator is connected with the evaporator and is used for carrying out gas-liquid separation on the steam generated by the evaporator;

and the filter is connected with the first separator and is used for removing liquid drops entrained in the steam to form the first steam.

According to the heat recovery system of the autoclaved curing kettle, the first separator is connected with the evaporator through the third loop and is used for enabling liquid phase in the first separator to flow back to the evaporator for evaporation.

According to the heat recovery system of the autoclaved curing kettle provided by the utility model, the compression enthalpy-increasing module comprises:

a compressor for compressing the first vapor with increased enthalpy to form the second vapor;

and the water spraying cooling assembly is used for spraying and cooling the compressor.

According to the heat recovery system of the autoclaved curing kettle, the water spraying and cooling component comprises a water spraying tank and a water spraying pump; the water spraying tank is used for containing cooling water, and the water spraying pump is used for pumping the cooling water in the water spraying tank to spray the compressor.

According to the heat recovery system of the autoclaved curing kettle, the compressor has a vacuumizing function to form the negative pressure piece, and the kettle body is communicated with the compressor through the third passage.

According to the heat recovery system of the autoclaved curing kettle provided by the utility model, the steam energy storage module comprises:

the second separator is connected with the compressor and is used for carrying out gas-liquid separation on the second steam;

the gas storage tank is connected with the second separator, is used for storing the second steam, and the gas outlet is connected with the kettle body through the first loop and is used for releasing the second steam into the kettle body.

According to the heat recovery system of the autoclaved curing kettle, the second separator is connected with the water spraying tank through the fourth loop and is used for enabling liquid phase separated by the second separator to flow back to the water spraying tank.

According to the heat recovery system of the autoclaved curing kettle, the water spraying tank is connected with the air suction port of the compressor through the fourth passage.

According to the heat recovery system of the autoclaved curing kettle, provided by the utility model, the coil is arranged in the water spraying tank and is used for supplying cooling liquid to cool the cooling water in the water spraying tank.

According to the heat recovery system of the autoclaved curing kettle, the first separator is connected with the evaporator through the third loop and is used for enabling liquid phase separated by the first separator to flow back to the evaporator.

According to the autoclaved curing kettle heat recovery system provided by the utility model, the heat exchange and purification module can be used for carrying out heat exchange on the exhaust steam in the kettle body and the saturated purified water, the temperature of the saturated purified water for absorbing the exhaust steam waste heat is increased to form new impurity-free first steam, the compression enthalpy increasing module is used for compressing the first steam to increase the enthalpy, the pressure and the temperature of the first steam are increased to form second steam, and the second steam is stored by the steam energy storage module and can be reused as heat source steam. So set up, both can carry out abundant recycle to the internal heat of cauldron, removed the interior impurity of exhaust steam through heat exchange simultaneously, guaranteed the quality of product in the follow-up production.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a heat recovery system of an autoclaved curing kettle provided by an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a heat exchange purification module according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a compression enthalpy increasing module according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a steam energy storage module according to an embodiment of the present utility model.

Reference numerals:

1. a kettle body; 10. a first tank; 11. a second kettle; 2. a heat exchange purification module; 20. an evaporator; 200. a first pressure detector; 201. a first temperature detector; 21. a first separator; 210. a first level gauge; 22. a filter; 23. a third loop; 24. a first water supplementing pipe; 240. a first water supplementing valve; 3. a compression enthalpy increasing module; 30. a compressor; 31. a water spray cooling assembly; 310. a water spraying tank; 311. a water jet pump; 312. a second temperature detector; 313. a fourth passage; 314. an eleven valve; 32. a fourth loop; 33. a second water supplementing pipe; 330. a second water supplementing valve; 4. a steam energy storage module; 40. a second separator; 400. a second level gauge; 41. a vapor storage tank; 410. a second pressure detector; 411. a third temperature detector; 412. a pressure release valve; 5. a first passage; 50. a first shunt; 500. a first valve; 51. a second shunt; 510. a second valve; 6. a first loop; 60. a first branch; 600. a third valve; 61. a second branch; 610. a fourth valve; 7. a second loop; 8. a second passage; 80. a third shunt; 800. a fifth valve; 81. a fourth shunt; 810. a sixth valve; 9. a third passage; 90. a fifth shunt; 900. a seventh valve; 91. a sixth shunt; 910. an eighth valve; 92. a heat source tube; 920. a ninth valve; 93. and a tenth valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to facilitate understanding of the heat recovery system of the autoclaved curing kettle, the application background is described first, autoclaved curing is the main stage of hardening reaction and strength enhancement of aerated concrete billets, and after autoclaved curing, a great amount of heat is still contained in waste steam of the kettle body, and energy sources are wasted due to direct discharge, so that the high-pressure waste steam is generally recovered and stored by using an energy storage tank in the prior art, and the steam stored in the energy storage tank is subsequently recharged into the kettle body, so that the purpose of recycling waste heat is achieved. However, the method can only recycle the high-pressure exhaust steam, the low-pressure exhaust steam can still be discharged, the heat recovery is not thorough enough, the waste is serious, and in addition, a large amount of impurities exist in the exhaust steam, and the direct recharging of the kettle body can possibly cause a certain influence on the quality of products.

The mechanical vapor compression is a high-efficiency energy-saving technology, which utilizes a vapor compressor to do work on secondary vapor, improves the pressure and temperature of the secondary vapor, and the vapor after temperature rise can be reused as heat source vapor, thereby saving the original heat source vapor and achieving the purpose of energy saving. Based on the above, the utility model provides the heat recovery system of the autoclaved curing kettle, which can more thoroughly recover the heat in the waste steam and ensure the quality of products.

The autoclave heat recovery system of the present utility model is described below with reference to fig. 1 to 4.

Referring to fig. 1, an autoclaved curing kettle heat recovery system comprises a kettle body 1, a heat exchange purification module 2, a compression enthalpy-increasing module 3 and a steam energy storage module 4; wherein, the kettle body 1 is a container for autoclaved curing of aerated concrete billets; the heat exchange purification module 2 is connected with the kettle body 1 through a first passage 5, and after the concrete blank is steamed, waste steam in the kettle body 1 can be discharged into the heat exchange purification module 2 through the first passage 5 for heat exchange, so that pure first steam is obtained; the compression enthalpy-increasing module 3 is connected with the heat exchange purification module 2 and is used for compressing the first vapor to increase the enthalpy to obtain second vapor; the steam energy storage module 4 is connected with the compression enthalpy increasing module 3 and is communicated with the kettle body 1 through the first loop 6 for storing the second steam and returning the second steam to the kettle body 1 for recycling according to the actual production requirement.

In practical application, the heat exchange purification module 2 can enable the exhaust steam in the kettle body 1 to exchange heat with saturated purified water, the saturated purified water absorbs the exhaust steam and the waste heat to rise in temperature, the saturated purified water becomes new impurity-free first steam, the compression enthalpy increasing module 3 is used for compressing the first steam to increase the enthalpy, the pressure and the temperature of the first steam are increased to form second steam, the second steam is stored through the steam energy storage module 4, and the second steam can be reused as heat source steam. So set up, both can carry out abundant recycle to the heat in the cauldron body 1, removed the impurity in the exhaust steam simultaneously through heat exchange, guaranteed the quality of product in the follow-up production.

Referring to fig. 1 and 2, a second loop 7 and a second path 8 are communicated between the heat exchange purification module 2 and the kettle body 1; after the exhaust steam in the kettle body 1 exchanges heat with the saturated purified water in the heat exchange purification module 2, the exhaust steam can be condensed into liquid high-temperature condensed water, the high-temperature condensed water flows back into the kettle body 1 through the second loop 7 for temporary storage, when the condensed water in the kettle body 1 is enriched to a certain amount, the condensed water can enter the heat exchange purification module 2 through the second path 8 to exchange heat with the saturated purified water, so that pure first steam is obtained, the first steam is converted into second steam through compression enthalpy increase and is stored in the steam energy storage module 4 to be used as heat source steam. So set up, can retrieve the heat in the high temperature comdenstion water to more abundant thorough waste heat in the exhaust steam carries out recycle, reduces extravagant.

Specifically, referring to fig. 1, two kettles 1, namely a first kettle 10 and a second kettle 11, are provided, the first passage 5 has two branches, one branch is a first branch 50 for connecting the first kettle 10 and the thermal purification module 2, and a first valve 500 is provided on the first branch 50; the other branch is a second branch 51, which is used for connecting the second kettle 11 and the heat exchange purification module 2, and a second valve 510 is arranged on the second branch 51; by controlling the opening and closing of the first valve 500 and the second valve 510, the waste steam in the first kettle 10 or the second kettle 11 can be discharged into the heat exchange purification module 2 for heat exchange at a specific discharge rate.

The first loop 6 has two branches, namely a first branch 60 and a second branch 61, wherein the first branch 60 is used for connecting the first kettle 10 and the steam energy storage module 4, and a third valve 600 is arranged on the first branch 60; the second branch 61 is used for connecting the second kettle 11 and the steam energy storage module 4, and a fourth valve 610 is arranged on the second branch 61. By controlling the opening and closing of the third valve 600 and the fourth valve 610, the second steam can be discharged into the first tank 10 or the second tank 11 at a specific discharge rate.

Likewise, the second path 8 has two branches, a third branch 80 and a fourth branch 81, wherein the third branch 80 is used for connecting the first tank 10 and the steam energy storage module 4, the third branch 80 is provided with a fifth valve 800, the fourth branch 81 is used for connecting the second tank 11 and the steam energy storage module 4, and the fourth branch 81 is provided with a sixth valve 810. When the condensed water in the kettle body 1 is enriched to a certain amount, the high-temperature condensed water in the first kettle 10 or the second kettle 11 can be led into the heat exchange purification module 2 for heat exchange at a specific speed by controlling the on-off and opening of the fifth valve 800 and the sixth valve 810.

By controlling the opening and closing and opening of each valve, the first kettle 10 and the second kettle 11 are coordinated and matched, and the two kettle bodies 1 are used for one by one, for example, after the steaming work in the first kettle 10 is completed, the first valve 500 and the fourth valve 610 can be opened, waste steam in the first kettle 10 is introduced into the heat exchange purification module 2 for heat exchange and purification, the second steam is obtained after the first steam is compressed and enthalpy-increased, and the second steam is released into the second kettle 11 as new heat source steam to prepare for the steaming work of the second kettle 11; on the contrary, the second valve 510 and the third valve 600 are opened, so that the exhaust steam in the second kettle 11 is discharged for heat exchange, and the generated second steam is released into the first kettle 10 to prepare for the steaming work of the first kettle 10. So, can fully recycle to the waste heat steam of falling cauldron process, can also regulate and control exhaust steam emission time and second steam's delivery time through the aperture of control valve, make steam recovery and production process assorted.

Still press maintenance cauldron heat recovery system still includes the negative pressure spare, and the negative pressure spare links to each other with cauldron body 1 through third passageway 9, can bleed cauldron body 1 through the negative pressure spare, reaches the effect of evacuation temperature reduction. Specifically, the third path 9 has a main path and two branches, the two branches are a fifth branch 90 and a sixth branch 91, wherein the fifth branch 90 is used for connecting the first kettle 10 and the negative pressure component, the seventh valve 900 is arranged on the fifth branch 90, the sixth branch 91 is used for connecting the second kettle 11 and the negative pressure component, and the eighth valve 910 is arranged on the sixth branch 91; by controlling the on-off of the seventh valve 900 and the eighth valve 910, the first tank 10 or the second tank 11 can be evacuated and cooled.

In actual operation, before steam is input into the kettle body 1, the vacuum element and the seventh valve 900 or the eighth valve 910 are opened to vacuumize the kettle body 1, then the steam is input to a predetermined pressure, after a period of pressure maintaining and steam curing, the above waste heat recovery operation is performed, and the next kettle body 1 is vacuumized to perform the next cycle.

The heat source tube 92 is connected to the kettle body 1 for connecting with external heat source steam, and when the steam demand cannot be provided by the steam energy storage module 4, sufficient steam can be provided into the kettle body 1 through the heat source tube 92. Specifically, heat source tube 92 communicates with third passage 9, ninth valve 920 is provided in heat source tube 92, tenth valve 93 is provided in the total path of third passage 9, and external heat source steam can be introduced into first tank 10 or second tank 11 by selectively opening ninth valve 920 and then selectively opening seventh valve 900 and eighth valve 910.

It can be understood that, according to the demand of actual production, the kettle body 1 can also be set to more than two, and corresponding can increase each branching, branch road and the quantity of valve, through the switching or the aperture of valve on each branching or branch road of control, can make the cooperation between a plurality of kettles 1, coordinate the operation, satisfy steam recovery and production process assorted.

Specifically, referring to fig. 2, the thermal purification module includes an evaporator 20, a first separator 21, and a filter 22; the evaporator 20 is a mature prior art, the model and specification of the evaporator can be selected according to actual needs, a heating chamber and an evaporating chamber are arranged in the evaporator 20, and the first passage 5 and the second passage 8 are connected with the heating chamber of the evaporator 20, so that high-temperature exhaust steam and condensed water can be used as heat sources to heat saturated purified water in the evaporating chamber and obtain pure steam; the second loop 7 is communicated with a condensate outlet of the evaporator 20 and is used for enabling condensate to flow back into the kettle body 1. A first pressure detector 200 and a first temperature detector 201 are arranged in the evaporator 20 and are used for detecting the pressure and the temperature in the evaporator 20, and a worker can correspondingly adjust each component according to the change of parameters such as the temperature, the pressure and the like of the evaporator 20.

The inlet of the first separator 21 is connected to the evaporator 20, and is used for performing a gas-liquid separator on the steam generated by the evaporator 20, the outlet is connected to the filter 22, and the steam enters the filter 22 after being subjected to gas-liquid separation by the first separator 21, so that liquid drops entrained in the steam are further removed, and the first steam is generated.

Specifically, the first separator 21 is connected to the evaporation chamber of the evaporator 20 through the third circuit 23, and the liquid phase generated after the first separator 21 separates the vapor is returned to the evaporator 20 through the third circuit 23 for reuse. The first separator 21 and/or the evaporator 20 is provided with a first water supplementing pipe 24, when the saturated purified water content in the evaporator 20 is insufficient, water can be supplemented into the evaporator 20 through the first water supplementing pipe 24, and the first water supplementing pipe 24 is provided with a first water supplementing valve 240 for controlling the on-off state of the first water supplementing pipe 24.

Specifically, the first water supplementing pipe 24 is disposed on the first separator 21; the first separator 21 is connected with a first level gauge 210 for monitoring the liquid level of the liquid phase in the first separator 21, and when the liquid level of the liquid phase in the first separator 21 is insufficient, the first water supplementing valve 240 can be opened to supplement water to the first separator 21, so as to ensure the water amount in the evaporator 20.

It will be appreciated that the specific model, specifications, operating parameters, etc. of the first separator 21 and the filter 22 may be selected according to actual requirements.

Referring to fig. 3 and 4, the outlet of the filter 22 is connected to the compression enthalpy module 3, and the first vapor enters the compression enthalpy module 3 for compression. The compression enthalpy increasing module 3 comprises a compressor 30 and a water spray cooling component 31; the outlet of the filter 22 is connected to the suction port of the compressor 30; the specific model and specification of the compressor 30 can be selected according to actual demands, and specifically, the selected compressor 30 can have certain vacuumizing capacity, so that the negative pressure piece is formed, the kettle body 1 is connected with the compressor 30 through the third passage 9, and the opening and closing of each valve are reasonably controlled, so that the compressor 30 can compress steam, and vacuumizing and temperature reduction can be performed on the kettle body 1.

Specifically, the compressor 30 is a single screw compressor 30 with a compression ratio of 10 times and a temperature rise of 30-80 degrees.

It will be appreciated that the negative pressure member may also employ a vacuum pump or vacuum generator to achieve a relatively better evacuation effect.

The water spraying and cooling assembly 31 is mainly used for spraying water to cool the compressor 30 so as to protect the compressor 30, prevent the compressor 30 from being blocked due to high temperature and ensure the stable operation of the compressor 30. Specifically, the water spray cooling assembly 31 includes a water spray tank 310 and a water spray pump 311; the water spraying tank 310 is used for containing cooling water, and the water spraying pump 311 is connected with the water spraying tank 310 and is used for pumping the cooling water in the water spraying tank 310 to spray the compressor 30.

The steam energy storage module 4 comprises a second separator 40 and a steam storage tank 41; the outlet of the compressor 30 is connected to the inlet of the second separator 40, and the second separator 40 is used for performing gas-liquid separation on the second vapor, and the obtained liquid phase flows back into the water spraying tank 310 through the fourth loop 32 to supplement water for the water spraying tank 310.

In order to reduce the influence of the water flowing back in the second separator 40 on the water temperature in the water spray tank 310, a second temperature detector 312 is provided on the water spray tank 310 for detecting the water temperature in the water spray tank 310; the water spray tank 310 is connected to the air inlet of the compressor 30 through a fourth passage 313, an eleven valve 314 is provided in the fourth passage 313, and the cooling water in the water spray tank 310 can be vacuumized and cooled by controlling the opening and closing of the eleven valve 314, specifically, the opening of the eleven valve 314 can be increased when the water temperature increases, and the opening of the eleven valve 314 can be decreased when the water temperature decreases. The coil pipe is arranged in the water spraying tank 310 and is used for supplying cooling liquid, and cooling water in the water spraying tank 310 can be cooled through heat exchange of the coil pipe, so that the cooling water in the water spraying tank 310 can keep a proper temperature.

The second water supplementing pipe 33 is arranged on the water spraying tank 310 and/or the second separator 40, and when the cooling liquid in the water spraying tank 310 is insufficient, water can be supplemented into the water spraying tank 310 through the second water supplementing pipe 33; the second water supplementing pipe 33 is provided with a second water supplementing valve 330 for controlling the on-off of the second water supplementing pipe 33.

Specifically, the second water supplementing pipe 33 is disposed on the second separator 40, and the second separator 40 is connected with a second liquid level meter 400 for monitoring the liquid level of the liquid phase in the second separator 40, when the liquid phase in the second separator 40 is insufficient, the second water supplementing valve 330 can be opened to supplement water in the second separator 40, and the liquid phase flows back to the water spraying tank 310 through the fourth loop 32, so as to ensure the cooling water quantity in the water spraying tank 310.

The outlet of the second separator 40 is connected with the inlet of the steam storage tank 41, and the second steam is subjected to gas-liquid separation by the second separator 40 and then enters and exits the steam storage tank 41 for temporary storage; the outlet of the steam storage tank 41 is connected with the kettle body 1 through the first loop 6. The second pressure detector 410 and the third temperature detector 411 are provided on the vapor storage tank 41, and are used for detecting the temperature and the pressure in the vapor storage tank 41 and controlling the operation state of each component through parameters such as the temperature, the pressure and the like. The pressure release valve 412 is arranged on the steam storage tank 41, and when the pressure in the steam storage tank 41 exceeds the preset pressure, the pressure release valve 412 is opened to release pressure.

Specifically, the specification of the kettle body 1 can be selected according to actual requirements, and in this embodiment, the steam amount in the kettle body 1 is 120m ³ 。

Specifically, the evaporator 20 is a vertical shell-and-tube evaporator 20, the material is 304 stainless steel, and the heat exchange area of the evaporator 20 is 10-15m ² The conductivity of saturated purified water in the evaporator 20 was 2. Mu.S/cm.

Specifically, the axial flow rate of steam in the first separator 21 and the second separator 40 is controlled to be 1m/s or less.

Specifically, the water spraying buffer temporary storage time of the water spraying tank 310 is preferably 15-30min, and the flow range of the water spraying pump 311 is 100-300L/H; the storage buffer time of the steam storage tank 41 is 5-20min.

The novel innovation point of the utility model is that: the heat exchange purification module 2 can enable the exhaust steam in the kettle body 1 to exchange heat with the saturated purified water, the saturated purified water absorbs the exhaust steam waste heat, the temperature is increased, the saturated purified water becomes new impurity-free first steam, the compression enthalpy-increasing module 3 is used for compressing the first steam, the pressure and the temperature of the first steam are increased to form second steam, the second steam is stored through the steam energy storage module 4, and the second steam can be reused as heat source steam. So set up, both can carry out abundant recycle to the heat in the cauldron body 1, removed the impurity in the exhaust steam simultaneously through heat exchange, guaranteed the quality of product in the follow-up production.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An autoclaved curing kettle heat recovery system, comprising:

a kettle body (1);

the heat exchange purification module (2) is communicated with the kettle body (1) through a first passage (5) and is used for exchanging heat with exhaust steam in the kettle body (1) and obtaining pure first steam;

the compression enthalpy increasing module (3) is connected with the heat exchange purification module (2) and is used for compressing the first vapor to increase the enthalpy to obtain second vapor;

the steam energy storage module (4) is connected with the compression enthalpy increasing module (3) and is connected with the kettle body (1) through a first loop (6) and is used for storing second steam and returning the second steam to the kettle body (1).

2. The autoclaved curing kettle heat recovery system as claimed in claim 1, wherein a second loop (7) and a second path (8) are communicated between the heat exchange purification module (2) and the kettle body (1);

the second loop (7) is used for allowing condensed water subjected to heat exchange in the heat exchange purification module (2) to flow back to the kettle body (1);

the second passage (8) is used for enabling condensed water in the kettle body (1) to return to the heat exchange purification module (2) for heat exchange to obtain the first steam.

3. The autoclaved curing kettle heat recovery system as claimed in claim 2, wherein at least two kettle bodies (1) are provided, and the first loop (6) is respectively communicated with a plurality of kettle bodies (1) through branches.

4. An autoclaved curing kettle heat recovery system as claimed in claim 3 wherein the heat exchange purification module (2) comprises:

the evaporator (20) is used for exchanging heat with the heat in the kettle body (1) and generating steam;

a first separator (21) connected to the evaporator (20) for performing gas-liquid separation of the vapor generated by the evaporator (20);

a filter (22) is associated with the first separator (21) for removing droplets entrained in the vapor to form the first vapor.

5. The autoclaved curing kettle heat recovery system as recited in claim 4 wherein the first separator (21) is connected to the evaporator (20) through a third loop (23) for refluxing the liquid phase in the first separator (21) to the evaporator (20) for evaporation.

6. The autoclaved curing kettle heat recovery system as recited in any of claims 1-5 further comprising a negative pressure member in communication with the kettle body (1) through a third passageway (9).

7. The autoclave curing kettle heat recovery system according to claim 6, wherein the compression enthalpy increasing module (3) comprises:

-a compressor (30) for compressing an enthalpy increase of said first vapor forming said second vapor;

and the water spraying cooling component (31) is used for spraying and cooling the compressor (30).

8. The autoclaved curing kettle heat recovery system of claim 7 wherein said water spray cooling assembly (31) includes a water spray tank (310) and a water spray pump (311); the water spraying tank (310) is used for containing cooling water, and the water spraying pump (311) is used for extracting the cooling water in the water spraying tank (310) to spray the compressor (30).

9. The autoclaved curing kettle heat recovery system as recited in claim 7 wherein the compressor (30) has a pumping function to form the negative pressure piece, the kettle body (1) is communicated with the compressor (30) through the third passage (9).

10. The autoclave curing kettle heat recovery system according to claim 7, wherein the steam energy storage module (4) comprises:

a second separator (40) connected to the compressor (30) for gas-liquid separation of the second vapor;

the gas storage tank (41) is connected with the second separator (40) and is used for storing the second steam, and the gas outlet is connected with the kettle body (1) through the first loop (6) and is used for releasing the second steam into the kettle body (1).