CN208382220U - A kind of water trapping cooler for waste incinerator steam air heater - Google Patents

A kind of water trapping cooler for waste incinerator steam air heater Download PDF

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Publication number
CN208382220U
CN208382220U CN201820769626.2U CN201820769626U CN208382220U CN 208382220 U CN208382220 U CN 208382220U CN 201820769626 U CN201820769626 U CN 201820769626U CN 208382220 U CN208382220 U CN 208382220U
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China
Prior art keywords
hydrophobic
air heater
heat exchanger
temperature
water
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CN201820769626.2U
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Chinese (zh)
Inventor
侯静刚
邵凤文
张馨尹
张鸿生
王钰
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Jiangsu Energy Conservation Engineering Design Research Institute Co Ltd
Everbright Envirotech China Ltd
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Jiangsu Energy Conservation Engineering Design Research Institute Co Ltd
Everbright Envirotech China Ltd
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Priority to CN201820769626.2U priority Critical patent/CN208382220U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The utility model provides a kind of water trapping cooler for waste incinerator steam air heater, is arranged in steam air heater front end, comprising: the air heater positioned at water trapping cooler top;Hydrophobic heat exchanger positioned at water trapping cooler lower part, wherein, the heat source of hydrophobic heat exchanger is that the high temperature from steam air heater is hydrophobic, utilize the recirculated water in the hydrophobic waste-heat hydrophobic heat exchanger of high temperature, so that the temperature reduction that high temperature is hydrophobic, and there are temperature differences after keeping the recirculated water in hydrophobic heat exchanger heated, to realize that self-loopa is flowed;And the recirculated water tedge and recirculated water down-comer being arranged between air heater and hydrophobic heat exchanger.Water trapping cooler according to the present utility model, using the recirculated water in the hydrophobic waste-heat hydrophobic heat exchanger of the high temperature of steam air heater, so that the hydrophobic temperature of high temperature reduces, then enter oxygen-eliminating device after accessing hydrophobic main pipe, pipe vibration and corrosion can be reduced, safety in operation is improved.

Description

A kind of water trapping cooler for waste incinerator steam air heater
Technical field
The utility model relates to technical field of waste incineration, are used for waste incinerator steam air in particular to one kind The water trapping cooler of heater.
Background technique
China's rapid development of economy brings a series of environmental problem, including waste pollution.Waste includes city The processing of city's house refuse and danger wastes, waste generally carries out innoxious, minimizing, money by the way of power generation by waste combustion Sourceization processing.Garbage incinerating power plant is the domestic Municipal Solid-state Garbage-disposal Facilities for greatly developing construction in recent years, with harmless Change the advantages that effect is good, minimizing degree is high, recycling is convenient and occupied area is small, is sent out using the waste heat after waste incineration Electricity or heat supply, comprehensive resource utilization rate is high, has preferable economic results in society.Garbage incinerating power plant is complete as a large size Whole energy conversion apparatus, wherein the drop of each technology improves, all to entire using energy source progress.
Steam air heater is common heat-exchanger rig in garbage incinerating power plant, and waste incineration will be entered by introducing heat source The air of furnace is preheated, and improves air charging temperature, efficiency of combustion and overall operation to incinerator have important influence. At present conventional spam power plant waste incineration stokehold be arranged two-stage steam air heater, respectively introduce the steam extraction of steam turbine level-one and Waste heat boiler drum saturated vapor carries out air preheat as heat source.Cold air from trash repository is heated to 140 from 40 DEG C DEG C -160 DEG C or so, into second steam air heater, waste heat boiler drum saturated vapor is re-introduced by air and is heated to 220 DEG C Left and right is burnt into waste incinerator.The drain temperature of two-stage steam air heater is up to 190 DEG C or so, is directly entered and removes Oxygen device, since pressure difference and temperature are excessively high, the two phase flow of two-stage steam air heater is hydrophobic to will lead to pipe vibration and corruption Erosion, is unfavorable for keeping the safety in production.
Therefore, it is necessary to a kind of new water trapping cooler for waste incinerator steam air heater is provided, with Solve above-mentioned technical problem.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more Protect range.
For current deficiency, the utility model provides a kind of for the hydrophobic cold of waste incinerator steam air heater But the front end of the steam air heater is arranged in device, the water trapping cooler, comprising: is located at the hydrophobic cooling dress The air heater on the top set;Hydrophobic heat exchanger positioned at the lower part of the water trapping cooler, wherein the hydrophobic heat exchange The heat source of device is that the high temperature from the steam air heater is hydrophobic, using described in the hydrophobic waste-heat of the high temperature Recirculated water in hydrophobic heat exchanger, so that the hydrophobic temperature of the high temperature reduces, and make in the hydrophobic heat exchanger described follows There are temperature differences after ring water is heated, form high temperature circulation water and low-temperature circulating water, to realize that self-loopa is flowed;With setting in institute The recirculated water tedge and recirculated water down-comer between air heater and the hydrophobic heat exchanger are stated, in the hydrophobic heat exchanger The high temperature circulation water enter the air heater from the recirculated water tedge, and it is cooling after air heat-exchange, from described Recirculated water down-comer flows back into the hydrophobic heat exchanger, and converges with the low-temperature circulating water.
Further, the steam air heater includes that the level-one steam air heater set gradually and second steam are empty Hot-air heater.
Further, the air heater includes air heater entrance and air heater outlet, from trash repository Cold air enters from the air heater entrance, and after the air heater, the temperature of the cold air is increased, from institute Air heater outlet is stated to pick out.
Further, the temperature of the cold air of the air heater entrance is 35 DEG C -45 DEG C, the air heater The temperature of the raised cold air of the temperature of outlet is 55 DEG C -65 DEG C.
Further, the hydrophobic heat exchanger includes hydrophobic heat exchanger entrance and hydrophobic heat exchanger outlet, comes from the steam The high temperature of air heater is hydrophobic to enter the hydrophobic heat exchanger from the hydrophobic heat exchanger entrance, with the hydrophobic heat exchange After recirculated water heat exchange in device, the hydrophobic temperature of the high temperature is reduced, and is picked out from hydrophobic heat exchanger outlet.
Further, the hydrophobic temperature of the high temperature of the hydrophobic heat exchanger entrance is 180 DEG C -200 DEG C, described hydrophobic to change The hydrophobic temperature of the high temperature that the temperature of hot device outlet reduces is 100 DEG C -120 DEG C.
Further, temperature reduce the high temperature it is hydrophobic from the hydrophobic heat exchanger outlet pick out after, access hydrophobic main pipe, Subsequently into oxygen-eliminating device.
Further, the temperature of the high temperature circulation water in the hydrophobic heat exchanger is 90 DEG C -100 DEG C, described hydrophobic to change The temperature of the low-temperature circulating water in hot device is 65 DEG C -75 DEG C.
Further, one end of the recirculated water tedge connects the top of the hydrophobic heat exchanger, described in other end connection The bottom of air heater.
Further, one end of the recirculated water down-comer connects the bottom of the hydrophobic heat exchanger, described in other end connection The top of air heater.
In conclusion the water trapping cooler according to the present utility model for waste incinerator steam air heater, Using the recirculated water in the hydrophobic waste-heat hydrophobic heat exchanger of the high temperature of steam air heater, so that the temperature that high temperature is hydrophobic It reduces, then enters oxygen-eliminating device after accessing hydrophobic main pipe, it is possible to reduce pipe vibration and corrosion improve safety in operation;Meanwhile coming From cold air temperature raising after water trapping cooler of trash repository, steam air heater is entered back into, can reduce steam The temperature difference and caloric receptivity of air ports in air heater, and then pumping consumption is reduced, increase steam turbine power generation amount, improves Economic benefit;Moreover, can also reduce sour gas after the cold air pre-heating temperature elevation from trash repository to steam air heater Corrosion extends service life of equipment;In addition, each structure of entire water trapping cooler is simple, independent, pass through different water temperatures The density contrast of recirculated water realizes that self-loopa does not need additionally to increase water pump, can still transport in the case where generation single-stage hydrophobic failure Row, will not influence the heating effect of steam air heater and the overall operation of boiler.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing:
Fig. 1 is the knot of the water trapping cooler for waste incinerator steam air heater of the utility model embodiment Structure schematic diagram.
Description of symbols:
100, water trapping cooler 101, steam air heater
1011, level-one steam air heater 1012, second steam air heater
102, air heater 1021, air heater entrance
1022, air heater outlet 103, hydrophobic heat exchanger
1031, hydrophobic heat exchanger entrance 1032, hydrophobic heat exchanger outlet
104, recirculated water tedge 105, recirculated water down-comer
106, hydrophobic main pipe 1061, the hydrophobic main pipe of level-one
1062, the hydrophobic main pipe of second level
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art Technical characteristic is not described.
In order to thoroughly understand the utility model, specific embodiment will be proposed in following description, to illustrate this Utility model how to improve presently, there are the problem of.Obviously, the execution of the utility model is not limited to those skilled in the art The specific details that member is familiar with.The preferred embodiment of the utility model is described in detail as follows, however other than these detailed descriptions, The utility model can also have other embodiments.
It should be understood that when the term " comprising " and/or " including " is used in this specification, indicating described in presence Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety, Step, operation, element, component and/or their combination.
Two-stage steam air heater is arranged in waste incineration stokehold in conventional spam power plant at present, introduces steam turbine one respectively Grade steam extraction and waste heat boiler drum saturated vapor carry out air preheat as heat source.Cold air from trash repository is added from 40 DEG C Heat, into second steam air heater, is re-introduced into waste heat boiler drum saturated vapor and heats air to 140 DEG C -160 DEG C or so To 220 DEG C or so, burn into waste incinerator.The drain temperature of two-stage steam air heater is up to 190 DEG C or so, directly Into oxygen-eliminating device, since pressure difference and temperature are excessively high, the two phase flow of two-stage air preheater is hydrophobic to will lead to pipe vibration and corrosion, It is unfavorable for keeping the safety in production.
Exemplary embodiment
Fig. 1 shows a kind of for the hydrophobic cold of waste incinerator steam air heater of the embodiments of the present invention But the structural schematic diagram of device 100.The water trapping cooler 100 is specifically described referring to Fig. 1.
As shown in Figure 1, the utility model provides a kind of hydrophobic cooling for waste incinerator steam air heater 101 The front end of the steam air heater 101 is arranged in device 100, the water trapping cooler 100, comprising: is located at described dredge The air heater 102 on the top of water-cooling apparatus 100;Hydrophobic heat exchanger positioned at the lower part of the water trapping cooler 100 103, wherein the heat source of the hydrophobic heat exchanger 103 is that the high temperature from the steam air heater 101 is hydrophobic, benefit Recirculated water in the hydrophobic heat exchanger 103 described in the hydrophobic waste-heat of the high temperature, so that the temperature drop that the high temperature is hydrophobic It is low, and there are temperature differences after keeping the recirculated water in the hydrophobic heat exchanger 103 heated, form high temperature circulation water and low temperature Recirculated water, to realize that self-loopa is flowed;And following between the air heater 102 and the hydrophobic heat exchanger 103 is set Ring riser 104 waterborne and recirculated water down-comer 105, the high temperature circulation water in the hydrophobic heat exchanger 103 is from the circulation Riser 104 waterborne enters the air heater 102, with cooling after air heat-exchange, flows back into from the recirculated water down-comer 105 The hydrophobic heat exchanger 103, and converge with the low-temperature circulating water.
Water trapping cooler according to the present utility model is added using the hydrophobic waste heat of the high temperature of steam air heater 101 Recirculated water in thermal drain heat exchanger 103, so that the temperature reduction that high temperature is hydrophobic, then enter oxygen-eliminating device after accessing hydrophobic main pipe, Pipe vibration and corrosion can be reduced, safety in operation is improved;Meanwhile the cold air from trash repository passes through water trapping cooler Temperature increases afterwards, enters back into steam air heater 101, can reduce the air ports in steam air heater 101 The temperature difference and caloric receptivity, and then pumping consumption is reduced, increase steam turbine power generation amount, increases economic efficiency;Moreover, from trash repository Also corrosion of the sour gas to steam air heater can be reduced after cold air pre-heating temperature elevation, extend service life of equipment;In addition, Each structure of entire water trapping cooler 100 is simple, independent, realizes self-loopa by the density contrast of the recirculated water of different water temperatures It does not need additionally to increase water pump, can still be run in the case where generation single-stage hydrophobic failure, will not influence steam air heater 101 heating effect and the overall operation of boiler.
Wherein, the steam air heater 101 is to carry out indirect heat exchange by introducing high-temperature steam and air, by air The device of heating.As shown in Figure 1, the steam air heater 101 includes the level-one steam air heater set gradually 1011 and second steam air heater 1012.Accordingly, high temperature from the steam air heater 101 is hydrophobic also to include Level-one high temperature is hydrophobic and second level high temperature is hydrophobic.Therefore, the water trapping cooler 100 introduces level-one steam air heater 1011 It is hydrophobic as heat source with the high temperature of the two-way different pressures of second steam air heater 1012.
The air heater 102 is to be changed indirectly by introducing the heat sources such as high-temperature-hot-water, steam or flue gas with air Heat, the device that air is heated.Specifically, the air heater 102 includes that air heater entrance 1021 and air heat Device outlet 1022, the cold air from trash repository enters from the air heater entrance 1021, by the air heater After 102, the temperature of the cold air is increased, and is picked out from the air heater outlet 1022.Illustratively, the air heating The temperature of the cold air of device entrance 1021 is 35 DEG C -45 DEG C, such as 40 DEG C;The temperature liter of the air heater outlet 1022 The temperature of the high cold air is 55 DEG C -65 DEG C, such as 60 DEG C.
The hydrophobic heat exchanger 103 is to carry out indirect heat exchange with recirculated water by the way that introducing high temperature is hydrophobic, by circulating water heating Device.Further, the hydrophobic heat exchanger 103 includes that hydrophobic heat exchanger entrance 1031 and hydrophobic heat exchanger export 1032, The high temperature from the steam air heater 101 is hydrophobic to enter described hydrophobic change from the hydrophobic heat exchanger entrance 1031 After recirculated water heat exchange in hot device 103, with the hydrophobic heat exchanger 103, the hydrophobic temperature of the high temperature is reduced, from described hydrophobic Heat exchanger exit 1032 picks out.Illustratively, the hydrophobic temperature of the high temperature of the hydrophobic heat exchanger entrance is 180 DEG C -200 DEG C, such as 190 DEG C, the hydrophobic temperature of the high temperature that the temperature of the hydrophobic heat exchanger outlet 1032 reduces is 100 DEG C -120 DEG C, Such as 110 DEG C.
Further, temperature reduce the high temperature it is hydrophobic from the hydrophobic heat exchanger outlet 1032 pick out after, access it is hydrophobic Main pipe 106 can reduce pipe vibration and corrosion subsequently into oxygen-eliminating device (not shown) in this way, improve safety in operation.Specifically Ground, the high temperature drain temperature from the level-one steam air heater 1011 pick out after reducing from the hydrophobic main pipe 1061 of level-one, It is picked out after the reduction of 1012 high temperature drain temperature of second steam air heater from the hydrophobic main pipe 1062 of second level.
Recirculated water in hydrophobic heat exchanger 103 described in the waste-heat that the hydrophobic heat exchanger 103 utilizes high temperature hydrophobic, with Reduce the hydrophobic temperature of high temperature, and there are temperature difference after keeping the recirculated water in the hydrophobic heat exchanger 103 heated, not equality of temperature The recirculated water of degree can realize self-loopa flowing due to density contrast, not need additionally to increase water pump, and the hydrophobic failure of single-stage is occurring In the case of can still run, will not influence the heating effect of steam air heater 101 and the overall operation of boiler.It is described hydrophobic to change High temperature circulation water in hot device 103 enters the air heater 102 from the recirculated water tedge 104, after air heat-exchange It is cooling, the hydrophobic heat exchanger 103 is flow back into from the recirculated water down-comer 105.Illustratively, the hydrophobic heat exchanger 103 The temperature of the interior high temperature circulation water is 90 DEG C -100 DEG C, such as 95 DEG C;The low-temperature circulating in the hydrophobic heat exchanger 103 The temperature of water is 65 DEG C -75 DEG C, such as 70 DEG C.
Further, one end of the recirculated water tedge 104 connects the top of the hydrophobic heat exchanger 103, the other end The bottom of the air heater 102 is connected, one end of the recirculated water down-comer 105 connects the hydrophobic heat exchanger 103 Bottom, the other end connect the top of the air heater 102, and this design is conducive to following in the hydrophobic heat exchanger 103 The self-loopa of ring water is flowed.
The working principle of the utility model is that the cold air from trash repository enters from air heater entrance 1021, Make air from 35 DEG C -45 DEG C be heated to 55 DEG C -65 DEG C after, picked out from air heater outlet 1022, then sequentially enter one Grade steam air heater 1011 and second steam air heater 1012, subsequently into boiler.Level-one steam air heater 1011 level-one high temperature is hydrophobic hydrophobic from hydrophobic heat exchanger entrance 1031 with the second level high temperature of second steam air heater 1012 It exchanges heat into the recirculated water in hydrophobic heat exchanger 103, with hydrophobic heat exchanger 103, makes the recirculated water in hydrophobic heat exchanger 103 Temperature be warming up to 90 DEG C -100 DEG C from 65 DEG C -75 DEG C, due to recirculated water the temperature difference formed density contrast realize self-loopa flowing, High temperature circulation water enters air heater 102 from recirculated water tedge 104, after being cooled to 65 DEG C -75 DEG C after air heat-exchange, from Recirculated water down-comer 105 flows back into hydrophobic heat exchanger 103, converges with low-temperature circulating water, further participates in self-loopa flowing.
In conclusion the water trapping cooler according to the present utility model for waste incinerator steam air heater, Using the recirculated water in the hydrophobic waste-heat hydrophobic heat exchanger of the high temperature of steam air heater, so that the temperature that high temperature is hydrophobic It reduces, then enters oxygen-eliminating device after accessing hydrophobic main pipe, it is possible to reduce pipe vibration and corrosion improve safety in operation;Meanwhile coming From cold air temperature raising after water trapping cooler of trash repository, steam air heater is entered back into, can reduce steam The temperature difference and caloric receptivity of air ports in air heater, and then pumping consumption is reduced, increase steam turbine power generation amount, improves Economic benefit;Moreover, can also reduce sour gas after the cold air pre-heating temperature elevation from trash repository to steam air heater Corrosion extends service life of equipment;In addition, each structure of entire water trapping cooler is simple, independent, pass through different water temperatures The density contrast of recirculated water realizes that self-loopa does not need additionally to increase water pump, can still transport in the case where generation single-stage hydrophobic failure Row, will not influence the heating effect of steam air heater and the overall operation of boiler.
The utility model is illustrated through the foregoing embodiment, but it is to be understood that, above-described embodiment is Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore ability Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with It is interior.The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of water trapping cooler for waste incinerator steam air heater, which is characterized in that the hydrophobic cooling The front end of the steam air heater is arranged in device, comprising:
Air heater positioned at the top of the water trapping cooler;
Hydrophobic heat exchanger positioned at the lower part of the water trapping cooler, wherein the heat source of the hydrophobic heat exchanger is next It is hydrophobic from the high temperature of the steam air heater, utilize following in hydrophobic heat exchanger described in the hydrophobic waste-heat of the high temperature Ring water, so that the temperature reduction that the high temperature is hydrophobic, and exist after keeping the recirculated water in the hydrophobic heat exchanger heated Temperature difference forms high temperature circulation water and low-temperature circulating water, to realize that self-loopa is flowed;With
Recirculated water tedge and recirculated water down-comer between the air heater and the hydrophobic heat exchanger are set, it is described The high temperature circulation water in hydrophobic heat exchanger enters the air heater from the recirculated water tedge, after air heat-exchange It is cooling, the hydrophobic heat exchanger is flow back into from the recirculated water down-comer, and converge with the low-temperature circulating water.
2. water trapping cooler according to claim 1, which is characterized in that the steam air heater includes successively setting The level-one steam air heater and second steam air heater set.
3. water trapping cooler according to claim 1, which is characterized in that the air heater includes air heater Entrance and air heater outlet, the cold air from trash repository enters from the air heater entrance, by the air After heater, the temperature of the cold air is increased, and is picked out from the air heater outlet.
4. water trapping cooler according to claim 3, which is characterized in that the cold sky of the air heater entrance The temperature of gas is 35 DEG C -45 DEG C, and the temperature of the raised cold air of the temperature of the air heater outlet is 55 DEG C -65 ℃。
5. water trapping cooler according to claim 1, which is characterized in that the hydrophobic heat exchanger includes hydrophobic heat exchanger Entrance and hydrophobic heat exchanger outlet, the high temperature from the steam air heater are hydrophobic from the hydrophobic heat exchanger entrance Into after the recirculated water heat exchange in the hydrophobic heat exchanger, with the hydrophobic heat exchanger, the hydrophobic temperature of the high temperature is reduced, from The hydrophobic heat exchanger outlet picks out.
6. water trapping cooler according to claim 5, which is characterized in that the high temperature of the hydrophobic heat exchanger entrance Hydrophobic temperature is 180 DEG C -200 DEG C, and the hydrophobic temperature of the high temperature that the temperature of the hydrophobic heat exchanger outlet reduces is 100 ℃‐120℃。
7. water trapping cooler according to claim 5, which is characterized in that the high temperature that temperature reduces is hydrophobic from described After hydrophobic heat exchanger outlet picks out, hydrophobic main pipe is accessed, subsequently into oxygen-eliminating device.
8. water trapping cooler according to claim 1, which is characterized in that the high temperature in the hydrophobic heat exchanger follows The temperature of ring water is 90 DEG C -100 DEG C, and the temperature of the low-temperature circulating water in the hydrophobic heat exchanger is 65 DEG C -75 DEG C.
9. water trapping cooler according to claim 1, which is characterized in that one end of the recirculated water tedge connects institute The top of hydrophobic heat exchanger is stated, the other end connects the bottom of the air heater.
10. water trapping cooler according to claim 1, which is characterized in that one end of the recirculated water down-comer connects The bottom of the hydrophobic heat exchanger, the other end connect the top of the air heater.
CN201820769626.2U 2018-05-21 2018-05-21 A kind of water trapping cooler for waste incinerator steam air heater Active CN208382220U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820769626.2U CN208382220U (en) 2018-05-21 2018-05-21 A kind of water trapping cooler for waste incinerator steam air heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820769626.2U CN208382220U (en) 2018-05-21 2018-05-21 A kind of water trapping cooler for waste incinerator steam air heater

Publications (1)

Publication Number Publication Date
CN208382220U true CN208382220U (en) 2019-01-15

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CN201820769626.2U Active CN208382220U (en) 2018-05-21 2018-05-21 A kind of water trapping cooler for waste incinerator steam air heater

Country Status (1)

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