CN211925720U - Waste heat steam power generation device - Google Patents

Waste heat steam power generation device Download PDF

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Publication number
CN211925720U
CN211925720U CN202020223099.2U CN202020223099U CN211925720U CN 211925720 U CN211925720 U CN 211925720U CN 202020223099 U CN202020223099 U CN 202020223099U CN 211925720 U CN211925720 U CN 211925720U
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steam
waste heat
cogeneration
communicated
heat steam
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王皖
牟浩
吴庆非
李进春
邓航
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Masteel Design & Research Institute Co ltd
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Masteel Design & Research Institute Co ltd
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Abstract

The utility model discloses a waste heat steam power generation facility belongs to the waste heat steam recovery field. The waste heat steam generator comprises a waste heat steam generating source and a main throttle valve, wherein the main throttle valve is communicated with the waste heat steam generating source; the air inlet of the steam turbine generator unit is communicated with the main throttle valve; the condensation unit is communicated with an air outlet of the steam turbine generator unit and condenses the steam exhausted by the steam turbine generator unit; the deoxygenation system is communicated with the condensation unit and is used for deoxygenating the condensation product; and the heating unit is communicated with the oxygen removal system and is used for heating the oxygen removal product. This device has accomplished the high-efficient utilization of electric energy, water resource to waste heat steam through mutually supporting between each processing unit, and this device simple structure, and the required area of construction is low, the condition restriction requires fewly, can construct in a plurality of places flexibility and utilize, and application scope is wide.

Description

Waste heat steam power generation device
Technical Field
The utility model relates to a waste heat steam recovery field, more specifically say so and relate to a waste heat steam power generation facility.
Background
The waste heat power generation technology is a technology for converting redundant heat energy into electric energy in the production process, and particularly, the waste heat power generation technology is a technology for generating steam by using heat or combustible substances in working media such as waste gas and leaves as heat sources to reduce heat pollution to the environment, and has obvious energy-saving effect and good economic benefit and social benefit.
The existing steam power generation facilities utilizing waste heat have large occupied area, complex structure and large cooling water consumption, and waste heat steam generated in the operation of industrial or civil production and living devices in the field or special places and waste heat steam generated in the operation of some movable facilities, but because of site limitation or other condition limitations, the conditions of conventional steam power stations utilizing waste heat are not built, such as site, continuous movement, grid connection, large amount of cooling water and the like, so that a large amount of steam waste heat can only be diffused or cooled by a large amount of cooling water, and the energy waste and the environmental influence are caused.
Through retrieval, Chinese patent publication No. CN 103291390A, published 2013, 9.11 discloses a heating furnace flue gas and steam waste heat recovery power generation system and a power generation method, the system comprises a flue gas waste heat boiler system, a heating furnace gas-phone cooling system, a steam turbine generator set system, a condensed water return water supply system and a combined control system, the flue gas waste heat boiler system comprises an economizer, an evaporator and a superheater, and the feed water of the vaporization cooling system comes from the heating furnace economizer. Although this application provides a system that can retrieve waste heat steam and generate electricity, this system still has the structure complicacy, and the required big defect in place of construction is difficult to satisfy the demand of multiple occasion, and application scope is little.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The problem that power generation facility structure to utilizing waste heat steam among the prior art is complicated, energy utilization is low, the utility model provides a waste heat steam power generation facility through mutually supporting between each processing unit, has accomplished the high-efficient utilization of electric energy, water resource to waste heat steam, and this device simple structure, and the required area of construction is low, the condition restriction requires few, can construct in the nimble construction in multiple place and utilize, and application scope is wide.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
a waste heat steam power generation device comprises a waste heat steam generating source and further comprises:
a main throttle valve communicated with the waste heat steam generating source;
the air inlet of the steam turbine generator unit is communicated with the main throttle valve;
the condensation unit is communicated with an air outlet of the steam turbine generator unit and condenses the steam exhausted by the steam turbine generator unit;
the deoxygenation system is communicated with the condensation unit and is used for deoxygenating the condensation product;
and the heating unit is communicated with the oxygen removal system and is used for heating the oxygen removal product.
The main throttle valve is arranged at the air inlet of a steam turbine of the steam turbine generator unit, the waste heat steam generated by the waste heat steam generating source is injected into the steam turbine of the steam turbine generator unit through the main throttle valve, the waste heat steam expands in the turbine to do work to generate kinetic energy to enable the turbine generator to generate electricity, the electric energy generated by the turbine generator unit can be transmitted to places such as a waste heat steam generating source to be continuously utilized, the waste steam after the work of the turbine generator unit is discharged into a condensing unit, condensed into condensed water in the condensing unit, and then the condensed water is sent into the deoxidizing system, the condensed water entering the deoxidizing system removes oxygen and other harmful gases dissolved in the condensed water under the action of the deoxidizing system, thereby preventing the subsequent processing unit or equipment from being corroded and damaged, and the condensed water after being deoxidized by the deoxidizing system is sent into places such as a waste heat steam generating source for continuous utilization after being heated to a proper temperature by the heating unit.
Further, the heating unit comprises a steam heater, the steam heater is communicated with the oxygen removal system and is connected with the waste heat steam generation source through a pipeline, and the oxygen removal product is heated by using waste heat steam.
The steam heater is characterized in that a pipeline is arranged to connect the waste heat steam generating source with the heating unit, the steam heater is called as a steam heater, the steam temperature generated by the waste heat steam generating source can be used for heating, the condensed water is heated by taking the waste heat steam as a heat source, energy can be further saved, and the purposes of fully utilizing the waste heat steam and reducing the consumption of additional energy are effectively achieved.
Further, the heating unit further includes an electric heater in communication with the steam heater.
The electric heater is arranged, condensate water after deoxygenation of the deoxygenation system firstly passes through the steam heater and then flows through the electric heater, and if the temperature of the condensate water flowing through the steam heater does not reach the temperature requirement of outward conveying, the electric heater is started to heat the condensate water, so that the temperature is guaranteed to reach the standard.
Further, the oxygen removing system is communicated with the steam heater through the water mixer;
and a one-way pipeline I from the water mixer to the steam heater and a one-way pipeline II from the steam heater to the water mixer are arranged between the water mixer and the steam heater.
Steam heater is when adopting steam to heat the comdenstion water, and waste heat steam is also being condensed by the cold, and this scheme is through setting up from steam heater to the one-way pipe two of muddy hydrophone, with the comdenstion water after the waste heat steam is condensed by the cold input muddy hydrophone in, muddy hydrophone's effect be with the comdenstion water after the deoxidization of deoxidization system with from the comdenstion water intensive mixing of steam heater input, make the even comdenstion water of temperature input to the heating element in, ensure the heating effect.
Further, the condensing unit comprises a condenser and a circulating water pump,
an inlet of the condenser is communicated with an air outlet of the turbo generator set, and an outlet of the condenser is communicated with the deoxygenation system;
and the circulating water pump is communicated with the condenser to enable water circulation to be generated in the condenser.
The circulating water pump makes the condenser produce continuous circulating water to strengthen the condensing effect of the condenser on the exhaust gas of the turbo generator set.
Furthermore, the condenser is a plate type air-cooling condenser.
Plate-type air cooling condenser compares in other kinds of condensers water conservation effect better, and its heat transfer efficiency is high, and corrosion resistance is good, and compact structure can not consume too much space but can guarantee the condensation effect, is applicable to under the operating mode condition that this device was used.
Further, still include and penetrate vapour ejector, it is connected with the condenser.
The steam jet air ejector is of an existing structure and comprises a working nozzle, a mixing chamber and a diffuser pipe, working steam which operates the steam jet air ejector enters the working nozzle, and a large-amplitude pressure drop occurs after the working steam enters the mixing chamber, so that a mixture of redundant steam and air in a condenser which is connected in advance is sucked into the mixing chamber, the condenser is kept to operate under the condition of high vacuum degree, the condensation effect is ensured, and the steam in the mixing chamber is subjected to pressure rise after passing through the diffuser pipe and then is discharged.
Further, a nozzle of the steam jet ejector is communicated with the waste heat steam generating source.
The working nozzle of the steam jet air ejector in the scheme is communicated with the waste heat steam generating source, and the waste heat steam is used as the working steam of the steam jet air ejector, so that the waste heat steam is further utilized, and the extra energy consumption is saved.
Furthermore, a bypass pipeline is arranged at an outlet of a deoxygenation product of the deoxygenation system and is connected with the steam jet air extractor; and the outlet of the steam jet air extractor is communicated with the water mixer.
The comdenstion water after the deoxidization of deoxidization system flows to penetrating vapour aspirator department through a bypass pipeline, can condense the steam in the penetrating vapour aspirator, make its final ability discharge comdenstion water, simultaneously, the comdenstion water also can be heated after penetrating the vapour aspirator, and then can be heated in advance when the log raft of penetrating vapour aspirator department to water mixer, make full use of the temperature characteristic energy consumption of having practiced thrift this device, make this device more energy-conserving and higher to waste heat steam's utilization ratio.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the waste heat steam power generation device of the utility model completes the high-efficiency utilization of electric energy and water resource to the waste heat steam through the mutual cooperation of each processing unit, and the device has simple structure, low occupied area required by construction, less condition restriction requirement, flexible construction and utilization in various places and wide application range;
(2) the waste heat steam power generation device of the utility model is provided with the heater which is used for heating by using the waste heat steam of the waste heat steam generating source in the heating unit, so that the waste heat steam is further utilized, the heating energy consumption is saved, and the device is more environment-friendly and energy-saving;
(3) the waste heat steam power generation device of the utility model is provided with the electric heater in the heating unit to further ensure that the temperature of the finally output condensed water reaches the standard;
(4) the utility model discloses a waste heat steam power generation facility sets up the muddy hydrophone, on the one hand collects the water after the waste heat steam is cooled and condensed in the steam heater, on the other hand fully mixes the comdenstion water after the deoxidization of deoxidization system with the comdenstion water from steam heater input, makes the comdenstion water of uniform temperature input in the heating unit, ensures the heating effect;
(5) compared with other types of condensers, the plate-type air-cooling condenser of the waste heat steam power generation device has better water-saving effect, high heat transfer efficiency, good corrosion resistance and compact structure, can not consume too much space but can ensure the condensation effect, and is suitable for the working condition of the device;
(6) the waste heat steam power generation device of the utility model is provided with the steam jet air ejector, thereby keeping the condenser running under the condition of higher vacuum degree and ensuring the condensation effect;
(7) the waste heat steam power generation device of the utility model has the advantages that the working nozzle of the steam jet air ejector is communicated with the waste heat steam generating source, and the waste heat steam is used as the working steam, so that the waste heat steam is further utilized, and the extra energy consumption is saved;
(8) the utility model discloses an exhaust-heat steam power generation facility, the comdenstion water after the deoxidization of deoxidization system flows to jet steam aspirator department through a bypass pipeline, can condense the steam in the jet steam aspirator, make its final ability discharge comdenstion water, simultaneously, the comdenstion water also can be heated after the jet steam aspirator, and then can be heated in advance when the log raft of jet steam aspirator department to water mixer, make full use of the temperature characteristic has practiced thrift the energy consumption of this device, make this device more energy-conserving and higher to exhaust-heat steam's utilization ratio.
Drawings
FIG. 1 is a schematic view of the connection relationship between the unit parts of the waste heat steam power generation device of the present invention;
fig. 2 is a schematic diagram of the position relationship of each unit part of the waste heat steam power generation device of the present invention.
In the figure:
1. a main valve; 2. a turbo generator unit; 3. a condensing unit; 30. a condenser; 31. a water circulating pump; 4. an oxygen scavenging system; 5. a heating unit; 50. a steam heater; 500. a first steam heater; 501. a second steam heater; 51. an electric heater; 6. a water mixer; 7. a steam jet air extractor; 8. and a waste heat steam generating source.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
The waste heat steam power generation device of the present embodiment, as shown in fig. 1, includes a waste heat steam generation source 8, and further includes:
a main throttle valve 1 communicated with the waste heat steam generation source 8;
a steam turbine generator unit 2, wherein an air inlet of the steam turbine generator unit is communicated with the main throttle valve 1;
the condensation unit 3 is communicated with the air outlet of the turbo generator unit 2 and condenses the steam discharged by the turbo generator unit 2;
the oxygen removal system 4 is communicated with the condensation unit 3 and is used for removing oxygen from the condensation product;
and the heating unit 5 is communicated with the oxygen removal system 4 and heats the oxygen removal products.
The waste heat steam generating source 8 includes, but is not limited to, a facility capable of generating waste heat steam, such as a boiler, in this embodiment, the main throttle 1 is installed at a steam turbine inlet of the turbo generator set 2, the waste heat steam generated by the waste heat steam generating source 8 is injected into a steam turbine of the turbo generator set 2 through the main throttle 1, the waste heat steam expands in the steam turbine to work to generate kinetic energy to enable the turbo generator to generate electricity, the electric energy generated by the turbo generator set 2 can be transmitted to the waste heat steam generating source 8 and other places to be continuously utilized, the waste steam after the work of the turbo generator set 2 is discharged into the condensing unit 3, condensed into condensed water in the condensing unit 3, and then sent into the deoxidizing system 4, the condensed water entering the deoxidizing system 4 is subjected to the effect of the deoxidizing system 4 to remove oxygen and other harmful gases dissolved in the condensed water, thereby preventing, the condensed water after being deoxidized by the deoxidizing system 4 is heated to a proper temperature by the heating unit 5 and then is sent to the places such as the waste heat steam generating source 8 for continuous utilization.
Waste heat steam source 8 is the boiler room in this embodiment, the steam that the boiler room produced lets in turbo generator set 2 through main throttle 1, turbo generator set 2 utilizes steam power generation, the electric energy input boiler room of production is as the energy, turbo generator set 2 exhausts the exhaust steam that uses up and condenses into the comdenstion water in condensing unit 3, let in oxygen removing system 4 in go out the oxygen such as condensate water harmful gas, then heat in letting in heating unit 5 and send back to the boiler room after suitable temperature, accomplish the make full use of to the waste heat gas that the boiler room was got rid of with this.
The waste heat steam power generation device of this embodiment through mutually supporting between each processing unit, has accomplished the high-efficient utilization of electric energy, water resource to waste heat steam, and this device simple structure, and the required area of construction is low, the condition restriction requires fewly, can construct in a plurality of places are nimble and utilize, and application scope is wide.
Example 2
The waste heat steam power generation device of this embodiment is further improved on the basis of embodiment 1, as shown in fig. 1, the heating unit 5 includes a steam heater 50, which is communicated with the oxygen removal system 4 and is connected to the waste heat steam generation source 8 through a pipeline, and the oxygen removal product is heated by using waste heat steam.
The steam heating device is provided with a pipeline to connect the waste heat steam generating source 8 with the heating unit 5 and is called as a steam heater 50, the steam temperature generated by the waste heat steam generating source 8 can be used for heating, and the condensed water is heated by taking the waste heat steam as a heat source, so that the energy can be further saved, the full utilization of the waste heat steam is effectively realized, and the consumption of extra energy is reduced.
In this embodiment, the steam heater 50 is provided with two stages, namely a first steam heater 500 and a second steam heater 501, which are connected in sequence, and condensed water after deoxygenation by the deoxygenation system 4 can pass through the first steam heater 500 and the second steam heater 501 in sequence to perform secondary heating, so as to ensure that the condensed water can be heated to a proper temperature.
The waste heat steam power generation device of this embodiment is equipped with the heater that utilizes the waste heat steam of waste heat steam generating source 8 to carry out the heating in heating unit 5, further utilizes waste heat steam, and has practiced thrift the heating power consumption, environmental protection and energy saving more.
Example 3
The power generation device using waste heat steam of the present embodiment is further improved on the basis of embodiment 2, and as shown in fig. 1, the heating unit 5 further includes an electric heater 51, which is communicated with the steam heater 50.
In this embodiment, the electric heater 51 is provided, the condensed water after the deoxygenation of the deoxygenation system 4 passes through the steam heater 51 first and then passes through the electric heater 51, and if the temperature of the water passing through the steam heater 51 does not reach the temperature requirement of the outward transportation, the electric heater 51 is started to heat the condensed water, so as to ensure that the temperature reaches the standard.
The waste heat steam power generation device of the embodiment is applied to a boiler room, the temperature of condensed water conveyed to the boiler room through the heating unit 5 must meet certain requirements, and if the temperature is not enough, the normal work of the boiler room can be influenced, so that the temperature can be ensured to reach the standard by arranging the electric heater 51.
Example 4
The waste heat steam power generation device of the embodiment is further improved on the basis of the embodiment 3, as shown in fig. 1, the waste heat steam power generation device further includes a water mixer 6, and the oxygen removing system 4 is communicated with the steam heater 50 through the water mixer 6;
a one-way pipeline I from the water mixer 6 to the steam heater 50 and a one-way pipeline II from the steam heater 50 to the water mixer 6 are arranged between the water mixer 6 and the steam heater 50.
Steam heater 50 is when adopting steam to heat the comdenstion water, waste heat steam is also being subjected to the cold condensation, and this embodiment is through setting up from steam heater 50 to the one-way pipeline two of water mixer 6, and the comdenstion water after condensing the waste heat steam is subjected to the cold is imported into water mixer 6, and water mixer 6's effect is with the comdenstion water after the deoxidization of deoxidization system 4 and the comdenstion water intensive mixing from steam heater 50 input, makes during the even comdenstion water of temperature imports heating element 5, ensures the heating effect.
Example 5
The power generation device using waste heat steam of the present embodiment is further improved based on embodiment 4, as shown in fig. 1, the condensing unit 3 includes a condenser 30 and a circulating water pump 31,
an inlet of the condenser 30 is communicated with an air outlet of the turbo generator set 2, and an outlet of the condenser 30 is communicated with the oxygen removal system 4;
the circulating water pump 31 is communicated with the condenser 30, so that water circulation is generated in the condenser 30.
The circulating water pump 31 makes the condenser 30 generate continuous circulating water to enhance the condensation effect of the condenser 30 on the exhaust gas discharged by the turbo generator set 2.
Example 6
The waste heat steam power generation device of the present embodiment is further improved on the basis of embodiment 5, and the condenser 30 is a plate-type air-cooled condenser.
Plate-type air cooling condenser compares in other kinds of condensers water conservation effect better, and its heat transfer efficiency is high, and corrosion resistance is good, and compact structure can not consume too much space but can guarantee the condensation effect, is applicable to under the operating mode condition that this device was used.
Example 7
The waste heat steam power generation device of the present embodiment is further improved based on embodiment 5 or 6, and as shown in fig. 1, further includes a steam jet ejector 7 connected to the condenser 30.
The steam jet air ejector 7 is of an existing structure and comprises a working nozzle, a mixing chamber and a diffuser pipe, working steam which operates in the steam jet air ejector enters the mixing chamber from the working nozzle, and a large-amplitude pressure drop occurs after the working steam enters the mixing chamber, so that a mixture of redundant steam and air in a condenser 30 which is connected in advance is sucked into the mixing chamber, the condenser 30 is kept to operate under the condition of high vacuum degree, the condensation effect is ensured, and the steam in the mixing chamber is subjected to pressure rise after passing through the diffuser pipe and then is discharged.
Example 8
The waste heat steam power generation device of the present embodiment is further improved from embodiment 7, and as shown in fig. 1, a nozzle of the steam jet ejector 7 is communicated with the waste heat steam generation source 8.
In the embodiment, the working nozzle of the steam jet air ejector 7 is communicated with the waste heat steam generating source 8, and waste heat steam is used as working steam of the steam jet air ejector, so that the waste heat steam is further utilized, and the extra energy consumption is saved.
Example 9
The waste heat steam power generation device of the embodiment is further improved on the basis of the embodiment 8, as shown in fig. 1, a bypass pipeline is arranged at an oxygen removal product outlet of the oxygen removal system 4 and connected with the steam jet air ejector 7; the outlet of the steam jet ejector 7 is communicated with the water mixer 6.
The comdenstion water after the 4 deoxidations of deoxidization system flows to jet steam aspirator 7 department through a bypass pipeline, can condense the steam in the jet steam aspirator 7, make its final ability discharge comdenstion water, simultaneously, the comdenstion water also can be heated after the jet steam aspirator 7, and then can be heated in advance when the log raft of jet steam aspirator 7 department to muddy hydrophone 6, make full use of the temperature characteristic energy consumption of having practiced thrift this device, make this device more energy-conserving and higher to waste heat steam's utilization ratio.
The condensed water after the deoxidization of the deoxidization system 4 is adopted to cool the steam ejector 7, so that the corrosion damage of the condensed water to the steam ejector 7 can be reduced, and the service life of the steam ejector is prolonged.
The position relation of each unit component of the waste heat steam power generation device of the embodiment is as shown in fig. 2, the whole waste heat steam power generation device is of a box type structure, the structure is compact, the occupied space is small, the waste heat steam power generation device can be carried on a vehicle to form a movable waste heat steam power generation device, and the waste heat steam power generation device is flexibly suitable for various scenes.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. A residual heat steam power generation device comprises a residual heat steam generating source (8), and is characterized by further comprising:
a main throttle valve (1) communicated with the waste heat steam generating source (8);
a steam turbine generator unit (2) with an air inlet communicated with the main throttle valve (1);
the condensation unit (3) is communicated with an air outlet of the steam turbine generator unit (2) and condenses the steam discharged by the steam turbine generator unit (2);
a deoxygenation system (4) in communication with the condensation unit (3) for deoxygenating the condensed products;
and the heating unit (5) is communicated with the oxygen removal system (4) and is used for heating the oxygen removal products.
2. The cogeneration apparatus of claim 1, wherein said cogeneration system further comprises: heating unit (5) include steam heater (50), its with deoxidization system (4) intercommunication, and through the pipeline with waste heat steam generation source (8) are connected, utilize waste heat steam to the heating of deoxidization result.
3. The cogeneration apparatus of claim 2, wherein said cogeneration system further comprises: the heating unit (5) further comprises an electric heater (51) in communication with the steam heater (50).
4. The cogeneration apparatus of claim 3, wherein said cogeneration system further comprises: the oxygen removing system (4) is communicated with the steam heater (50) through the water mixer (6);
a one-way pipeline I from the water mixer (6) to the steam heater (50) and a one-way pipeline II from the steam heater (50) to the water mixer (6) are arranged between the water mixer (6) and the steam heater (50).
5. The cogeneration apparatus of claim 4, wherein said cogeneration system further comprises: the condensing unit (3) comprises a condenser (30) and a circulating water pump (31),
an inlet of the condenser (30) is communicated with an air outlet of the turbo generator unit (2), and an outlet of the condenser (30) is communicated with the oxygen removal system (4);
the circulating water pump (31) is communicated with the condenser (30) to enable the condenser (30) to generate water circulation.
6. The cogeneration apparatus of claim 5, wherein said cogeneration system further comprises: the condenser (30) is a plate-type air-cooled condenser.
7. The cogeneration apparatus of claim 5, wherein said cogeneration system further comprises: the steam jet and air exhaust device (7) is connected with the condenser (30).
8. The cogeneration apparatus of claim 7, wherein said cogeneration system further comprises: and a nozzle of the steam jet ejector (7) is communicated with the waste heat steam generating source (8).
9. The cogeneration apparatus of claim 8, wherein said cogeneration system further comprises: and a bypass pipeline is arranged at an outlet of a deoxygenation product of the deoxygenation system (4) and connected with the steam jet air ejector (7).
10. The cogeneration apparatus of claim 9, wherein said cogeneration system further comprises: the outlet of the steam jet air extractor (7) is communicated with the water mixer (6).
CN202020223099.2U 2020-02-28 2020-02-28 Waste heat steam power generation device Active CN211925720U (en)

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CN202020223099.2U CN211925720U (en) 2020-02-28 2020-02-28 Waste heat steam power generation device

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Application Number Priority Date Filing Date Title
CN202020223099.2U CN211925720U (en) 2020-02-28 2020-02-28 Waste heat steam power generation device

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