CN114216117A - Waste heat recycling device - Google Patents

Waste heat recycling device Download PDF

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Publication number
CN114216117A
CN114216117A CN202111571546.9A CN202111571546A CN114216117A CN 114216117 A CN114216117 A CN 114216117A CN 202111571546 A CN202111571546 A CN 202111571546A CN 114216117 A CN114216117 A CN 114216117A
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China
Prior art keywords
water
steam
condensed water
boiler
tank
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Pending
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CN202111571546.9A
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Chinese (zh)
Inventor
王建军
杨晓
刘畅
刘辉
廖军
王姗姗
谢伟军
谢龙军
杨文彪
蒲兰涛
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Guilin Pharmaceutical Co ltd
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Guilin Pharmaceutical Co ltd
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Application filed by Guilin Pharmaceutical Co ltd filed Critical Guilin Pharmaceutical Co ltd
Priority to CN202111571546.9A priority Critical patent/CN114216117A/en
Publication of CN114216117A publication Critical patent/CN114216117A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00Feed-water supply not provided for in other main groups
    • F22D11/02Arrangements of feed-water pumps
    • F22D11/06Arrangements of feed-water pumps for returning condensate to boiler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0005Domestic hot-water supply systems using recuperation of waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/16Waste heat
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18Domestic hot-water supply systems using recuperated or waste heat

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The invention provides a waste heat recycling device which comprises a condensed water input assembly, a steam-water separation component for performing steam-water separation on condensed water, a steam treatment component for treating separated steam, a condensed water treatment assembly for treating the separated condensed water and a sewage station. The invention reduces the steam generation amount, thereby achieving the purposes of reducing the use amount of natural gas and saving natural gas energy, realizing the secondary utilization of condensed water through the condensed water treatment component and the sewage station, prolonging the service life of the boiler, reducing the exhaust gas temperature of the boiler, improving the steam-to-steam ratio of steam production, saving the steam production cost, effectively improving the utilization efficiency of energy, generating greater economic benefit and realizing the purpose of recycling the condensed water.

Description

Waste heat recycling device
Technical Field
The invention mainly relates to the technical field of boiler recovery, in particular to a waste heat recovery and utilization device.
Background
At present, a large amount of condensed water is generated after a gas-fired boiler is combusted, if the condensed water is directly discharged, energy waste is caused, meanwhile, the environment is greatly damaged and polluted due to the higher heat value of the condensed water, the environmental protection is not facilitated, and the energy waste is realized; if the condensation technique is recovered as soft water for steam production, the detection shows that if the water quality does not meet the water inlet requirement of the boiler, the influence is caused on the boiler body, the service life of the boiler is shortened, and the compensation is not needed, and according to the characteristics of unstable water quality, unstable pH and high hardness of the condensed water, if the condensed water is directly used as soft water for steam production, the continuous steam production is not facilitated under the condition of unstable water quality, and the production cannot be ensured; under the condition of unstable pH, the boiler wall and the pipeline are easy to corrode, the boiler is damaged, and the service life of the boiler is shortened; under the condition that hardness is big, be not conform to the steam soft water standard of country's product, the steam of producing can not satisfy the production standard, and the easy scale deposit of boiler when influencing the product needs the duty to wash the boiler and produces the washing expense to do not do benefit to the long-term high-efficient practicality of boiler.
Disclosure of Invention
The invention aims to solve the technical problem of providing a waste heat recycling device aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows: a waste heat recycling device comprises a condensed water input assembly, a steam-water separation component for performing steam-water separation on condensed water, a steam treatment component for treating separated steam, a condensed water treatment assembly for treating the separated condensed water and a sewage station,
the condensed water input assembly is connected with the steam-water separation component, the steam treatment component is respectively connected with the steam-water separation component and the sewage station, and the condensed water treatment assembly is respectively connected with the steam-water separation component and the sewage station.
The invention has the beneficial effects that: the steam generation amount is reduced through the condensed water input assembly, the steam-water separation component and the steam treatment component, so that the use amount of natural gas is reduced, the natural gas energy is saved, secondary utilization of condensed water is realized through the condensed water treatment assembly and the sewage station, the service life of the boiler is prolonged, the smoke exhaust temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, the steam production cost is saved, the utilization efficiency of energy is effectively improved, greater economic benefit is generated, and the purpose of recycling the condensed water is realized.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the condensed water input assembly comprises a plurality of water collecting pools and a plurality of first water pumps with the same number as the water collecting pools,
the two water collecting tanks and the two first water pumps form a group of water collecting tank groups, and the two water collecting tanks and the two first water pumps in each group are arranged at intervals;
in each water collecting pool group, the water collecting pools are sequentially connected with the first water pumps through pipelines, and the last first water pump is connected with the steam-water separation component through a pipeline.
The beneficial effect of adopting the further scheme is that: the condensed water is collected through the water collecting tank and the first water pump, so that the concentrated treatment of the condensed water is facilitated, the steam-steam ratio of steam production is improved, the steam production cost is saved, and the utilization efficiency of energy is effectively improved.
Further, the steam-water separation component comprises a steam-water separator.
The beneficial effect of adopting the further scheme is that: the condensed water is subjected to steam-water separation through the steam-water separator, so that subsequent targeted treatment is facilitated, and the steam generation amount is reduced, so that the use amount of natural gas is reduced, the natural gas energy is saved, and secondary utilization of the condensed water is realized.
Further, the steam processing part includes a domestic water tank,
one end opening of the domestic water tank is connected with the steam-water separator through a pipeline, so that the separated steam heats domestic water, and the other end opening of the domestic water tank is connected with the sewage station through a pipeline.
The beneficial effect of adopting the further scheme is that: the domestic water tank improves the temperature of domestic water, reduces the production cost of the domestic water and the steam generation amount, and also achieves the purpose of reducing the use amount of natural gas.
Further, the condensed water processing assembly comprises a condensed water storage assembly, a soft water input assembly, a boiler, a plurality of heat exchangers and a plurality of transfer tanks with the same number as the heat exchangers,
the condensed water storage assembly is respectively connected with the steam-water separation component and a plurality of first ports of the heat exchangers, the soft water input assembly is connected with a plurality of second ports of the heat exchangers, a plurality of third ports of the heat exchangers are connected with the sewage station through ground grooves, a plurality of fourth ports of the heat exchangers are respectively in one-to-one correspondence with the transfer tanks and are connected with one ports of the transfer tanks through pipelines, and the other ports of the transfer tanks are connected with the boiler through pipelines.
The beneficial effect of adopting the further scheme is that: the water temperature of the anaerobic treatment system is improved, the water quality requirement of soft water entering the boiler is ensured, the service life of the boiler is prolonged, the exhaust gas temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, the steam production cost is saved, the utilization efficiency of energy is effectively improved, greater economic benefit is generated, and the purpose of recycling condensed water is realized.
Further, the condensed water storage assembly comprises a water storage tank and a plurality of second water pumps with the same number as the heat exchangers,
one end port of the water storage tank is connected with the steam-water separation component through a pipeline, the other end port of the water storage tank is connected with one end port of each second water pump through a pipeline, and the other end ports of the plurality of second water pumps are in one-to-one correspondence with the plurality of second water pumps and are connected with the first end port of the heat exchanger through a pipeline.
The beneficial effect of adopting the further scheme is that: the condensed water after steam-water separation can be conveniently stored, and the subsequent treatment of the condensed water is also convenient.
Furthermore, the condensed water storage assembly also comprises a liquid level control assembly which is assembled on the water storage tank and is connected with the water storage tank through a circuit;
the liquid level control assembly is used for controlling a metering pump on the water storage tank to be closed when the liquid level in the water storage tank is greater than or equal to a preset threshold value;
and when the liquid level in the water storage tank is smaller than the preset threshold value, controlling a metering pump on the water storage tank to be started.
The beneficial effect of adopting the further scheme is that: the control of the condensate water level is realized.
Further, the soft water input assembly comprises a soft water tank and a plurality of third water pumps with the same number as the heat exchangers,
the soft water tank is respectively connected with one port of each third water pump through a pipeline, and the other port of each third water pump is respectively in one-to-one correspondence with the heat exchangers and is connected with the second port of each heat exchanger through a pipeline.
The beneficial effect of adopting the further scheme is that: soft water is provided, and a foundation is laid for the subsequent treatment of condensed water.
Further, the condensed water processing assembly also comprises a plurality of hardness testers and a plurality of PH testers, wherein the number of the hardness testers is the same as that of the transfer tanks,
the plurality of hardness testers are respectively in one-to-one correspondence with the plurality of transfer tanks and assembled on the transfer tanks, and the plurality of PH testers are respectively in one-to-one correspondence with the plurality of transfer tanks and assembled on the transfer tanks.
The beneficial effect of adopting the further scheme is that: the water quality requirement of soft water entering the boiler is guaranteed, the service life of the boiler is prolonged, the exhaust gas temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, the steam production cost is saved, the utilization efficiency of energy is effectively improved, great economic benefits are generated, and the purpose of recycling condensed water is achieved.
Further, the waste heat recycling device further comprises a boiler control assembly, and the boiler control assembly is respectively connected with the hardness tester and the PH meter in a wireless mode.
The beneficial effect of adopting the further scheme is that: the soft water quality can be monitored in real time, once the hardness and pH of the soft water cannot meet the requirement of water quality of the boiler, the soft water can be immediately cut off, the water quality of the boiler inlet water is guaranteed to reach the standard, the service life of the boiler is prolonged, the smoke exhaust temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, and the steam production cost is saved.
Drawings
Fig. 1 is a schematic connection diagram of a waste heat recycling device according to an embodiment of the present invention.
In the drawings, the names of the components represented by the respective symbols are as follows:
1. the system comprises a sewage station, 2, a water collecting pool, 3, a first water pump, 4, a steam-water separator, 5, a domestic water tank, 6, a boiler, 7, a heat exchanger, 8, a transfer tank, 9, a water storage tank, 10, a second water pump, 11, a soft water tank, 12, a third water pump, 13, a hardness tester, 14 and a PH meter.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a waste heat recycling device comprises a condensed water input assembly, a steam-water separation component for performing steam-water separation on condensed water, a steam treatment component for treating separated steam, a condensed water treatment assembly for treating separated condensed water, and a sewage station 1,
the condensed water input assembly is connected with the steam-water separation component, the steam treatment component is respectively connected with the steam-water separation component and the sewage station 1, and the condensed water treatment assembly is respectively connected with the steam-water separation component and the sewage station 1.
In the above embodiment, steam production is reduced through condensate water input assembly, catch water part and steam processing part to reach and reduce the natural gas use amount, the natural gas energy has been practiced thrift, realized the reutilization to the comdenstion water through comdenstion water processing assembly and sewage station, boiler life has been prolonged, boiler exhaust gas temperature has been reduced, steam production gas-steam ratio has been improved, steam production cost has been practiced thrift, the utilization efficiency of the energy has been improved effectively, great economic benefits has been produced, the purpose to comdenstion water recycle has been realized.
Optionally, as an embodiment of the present invention, the condensed water input assembly includes a plurality of water receiving tanks 2 and a plurality of first water pumps 3 equal in number to the water receiving tanks 2,
the two water collecting tanks 2 and the two first water pumps 3 form a group of water collecting tank groups, and the two water collecting tanks 2 and the two first water pumps 3 in each group are arranged at intervals;
in each water collecting pool group, the water collecting pool 2 and the first water pumps 3 are sequentially connected through a pipeline, and the last first water pump 3 is connected with the steam-water separation component through a pipeline.
Preferably, the number of the plurality of the water collecting tanks 2 may be 4.
It should be understood that the water collection basin 2 may also be a thermal station.
In the above embodiment, collect the comdenstion water through receiving pond and first water pump, be favorable to the centralized processing of comdenstion water, improved steam production gas-steam ratio, practiced thrift steam manufacturing cost, improved the utilization efficiency of the energy effectively.
Optionally, as an embodiment of the present invention, the steam-water separation component includes a steam-water separator 4.
In the above embodiment, the steam-water separator is used for separating the condensed water, so that subsequent targeted treatment is facilitated, and the steam generation amount is reduced, thereby reducing the usage amount of natural gas, saving the energy of the natural gas, and realizing secondary utilization of the condensed water.
Alternatively, as an embodiment of the present invention, the steam processing part includes a domestic water tank 5,
one port of the domestic water tank 5 is connected with the steam-water separator 4 through a pipeline, so that the separated steam heats domestic water, and the other port of the domestic water tank 5 is connected with the sewage station 1 through a pipeline.
It should be understood that the non-condensable gas (i.e. the steam) separated by the steam-water separator 4 is recycled to the water tank for domestic use (i.e. the water tank for domestic use 5) in the plant area through a pipeline, so that the water temperature of domestic water is increased, and the production cost of the domestic water is reduced.
It should be understood that after the recovered condensed water passes through the steam-water separator 4, steam is used for heating domestic water, and the steam generation amount is reduced, so that the use amount of natural gas is reduced.
In the embodiment, the domestic water temperature is improved through the domestic water tank, the domestic water production cost and the steam generation amount are reduced, and the purpose of reducing the natural gas consumption is also achieved.
Optionally, as an embodiment of the present invention, the condensed water treatment unit includes a condensed water storage unit, a soft water input unit, a boiler 6, a plurality of heat exchangers 7, and a plurality of transfer tanks 8 as many as the number of the heat exchangers 7,
the condensed water storage assembly is respectively connected with the steam-water separation component and a plurality of first ports of the heat exchangers 7, the soft water input assembly is connected with a plurality of second ports of the heat exchangers 7, a plurality of third ports of the heat exchangers 7 are connected with the sewage station 1 through ground grooves, a plurality of fourth ports of the heat exchangers 7 are respectively in one-to-one correspondence with the transfer tanks 8 and are connected with one ports of the transfer tanks 8 through pipelines, and a plurality of other ports of the transfer tanks 8 are connected with the boiler 6 through pipelines.
Preferably, the number of the heat exchangers 7 may be 2.
It should be understood that after the recovered condensed water passes through the steam-water separator (i.e. the steam-water separation part), the separated condensed water is used for preheating soft water, and the preheated soft water enters the boiler to be combusted and heated. The use amount of the boiler natural gas is reduced, and the natural gas energy is saved.
It should be understood that after the condensed water and the soft water are subjected to heat exchange through the heat exchanger (i.e., the heat exchanger 7), the condensed water flows to the water distribution tank of the sewage station 1 through the ground tank, and the water temperature of the anaerobic treatment system is increased.
It should be understood that the high-temperature condensed water enters the sewage treatment system after heat exchange to adjust the water temperature of the anaerobic treatment section, and secondary utilization of the condensed water is realized.
Specifically, the warp the comdenstion water of catch water part is collected the back and is carried out the heat transfer through heat exchanger 7 with boiler soft water, and under the effect of heat transfer, the comdenstion water cooling, soft water intensifies to realized the purpose with soft water preheating, got into again after the soft water preheats 6 burning heating of boiler can reduce the natural gas use amount. And guiding the condensed water after heat exchange with soft water to an IC tower water distribution tank of the sewage station 1 in winter, increasing the temperature of the wastewater, ensuring the control requirement of the IC tower on the operation temperature, and guiding the condensed water to the sewage station 1 for wastewater treatment in summer.
In the above embodiment, the water temperature of the anaerobic treatment system is improved, the water quality requirement of soft water entering the boiler is ensured, the service life of the boiler is prolonged, the exhaust gas temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, the steam production cost is saved, the utilization efficiency of energy is effectively improved, the great economic benefit is generated, and the purpose of recycling condensed water is realized.
Alternatively, as an embodiment of the present invention, the condensed water storage assembly includes a water storage tank 9 and a plurality of second water pumps 10 as many as the number of the heat exchangers 7,
one port of the water storage tank 9 is connected with the steam-water separation component through a pipeline, the other port of the water storage tank 9 is connected with one port of each second water pump 10 through a pipeline, and the other ports of the plurality of second water pumps 10 are in one-to-one correspondence with the plurality of second water pumps 10 and are connected with the first port of the heat exchanger 7 through a pipeline.
In the above embodiment, the condensed water after steam-water separation is convenient to store, and the subsequent treatment of the condensed water is also convenient.
Optionally, as an embodiment of the present invention, the condensed water storage assembly further includes a liquid level control assembly, and the liquid level control assembly is assembled on the water storage tank 9 and is connected by a circuit;
the liquid level control assembly is used for controlling a metering pump on the water storage tank 9 to be closed when the liquid level in the water storage tank 9 is greater than or equal to a preset threshold value;
and when the liquid level in the water storage tank 9 is smaller than the preset threshold value, controlling a metering pump on the water storage tank 9 to be started.
It should be understood that the condensed water storage tank (i.e. said water storage tank 9) is equipped with a level control device (i.e. said level control assembly), once the storage tank level reaches the upper command limit, the metering pump is automatically closed and no more water is fed, and the level is lower than the lower command limit, and the pump (i.e. said metering pump) restarts the water feed.
In the above embodiment, the control of the condensed water level is realized.
Alternatively, as an embodiment of the present invention, the soft water input module includes a soft water tank 11 and a plurality of third water pumps 12 as many as the number of the heat exchangers 7,
the soft water tank 11 is connected with one port of each third water pump 12 through a pipeline, and the other port of each third water pump 12 is in one-to-one correspondence with the heat exchangers 7 and is connected with the second port of each heat exchanger 7 through a pipeline.
In the embodiment, soft water is provided, and a foundation is laid for the subsequent treatment of the condensed water.
Optionally, as an embodiment of the present invention, the condensed water processing assembly further includes a plurality of hardness meters 13 in the same number as the number of the transfer tanks 8 and a plurality of PH meters 14 in the same number as the number of the transfer tanks 8,
the plurality of hardness testers 13 are respectively in one-to-one correspondence with the plurality of relay tanks 8 and are assembled on the relay tanks 8, and the plurality of PH testers 14 are respectively in one-to-one correspondence with the plurality of relay tanks 8 and are assembled on the relay tanks 8.
Preferably, the hardness meter 13 may be an online hardness meter, and the PH meter 14 may be an online PH meter.
It should be understood that the hardness meter 13 and the PH meter 14 are installed on the transfer tank 8, and the quality of the soft water is monitored in real time, so that the soft water can meet the requirement of the quality of the water entering the boiler.
It should be understood that after the condensed water exchanges heat with the soft water, the soft water is heated and enters the boiler, and the hardness and the pH of the soft water are monitored in real time.
In the above embodiment, the requirement of the soft water entering the boiler on the water quality is ensured, the service life of the boiler is prolonged, the exhaust gas temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, the steam production cost is saved, the utilization efficiency of energy is effectively improved, greater economic benefit is generated, and the purpose of recycling the condensed water is realized.
Optionally, as an embodiment of the present invention, the waste heat recycling device further includes a boiler control component, and the boiler control component is wirelessly connected to the plurality of hardness testers 13 and the plurality of PH testers 14, respectively.
It should be understood that the boiler control assembly guarantees the quality of soft water, satisfies the index of entering the boiler, and in case the deviation takes place, cuts off immediately, protects the boiler.
It should be appreciated that the boiler control assembly enables data interaction via remote control.
Specifically, the hardness and pH data of the soft water are transmitted to a boiler central control room (namely, the boiler control assembly) and are subjected to interlocking control, once the hardness and pH of the soft water cannot meet the requirement of water quality of the boiler, the soft water is immediately cut off, the water quality of the boiler inlet water is guaranteed to reach the standard, the service life of the boiler is prolonged, the smoke exhaust temperature of the boiler is reduced, the steam-steam ratio of steam production is improved, and the steam production cost is saved.
Above-mentioned embodiment, can real time monitoring soft water quality of water, in case the hardness and the pH of soft water can not satisfy into boiler water quality requirement and can cut off immediately, guaranteed that the boiler quality of water is up to standard, prolonged boiler life, reduced boiler exhaust gas temperature, improved steam production gas-steam ratio, practiced thrift steam manufacturing cost.
The using method of the invention is that the condensed water is recovered from a steam using workshop (namely the water collecting tank 2) to the steam-water separator 4, after separation, the condensed water is collected to a water storage tank (namely the water storage tank 9) of a boiler room by a pump, then flows through the heat exchanger 7 to exchange heat with soft water, the soft water flows to the storage tank after being preheated, and enters the boiler 6 at a constant speed to be heated to generate steam which is provided for the workshop for use. Leading the condensed water after heat exchange with soft water to an IC tower water distribution tank of the sewage station 1 in winter, increasing the temperature of the wastewater, ensuring the control requirement of the IC tower on the operation temperature, and leading the condensed water to the sewage station 1 in summer for wastewater treatment; the non-condensable gas separated by the steam-water separator 4 is recycled to the domestic water tank 5 through a pipeline, so that the temperature of domestic water is increased, and the cost of the domestic water is reduced.
The invention has the advantages of reducing the steam generation amount, thereby achieving the purposes of reducing the natural gas usage amount and saving the natural gas energy, realizing the secondary utilization of condensed water through the condensed water treatment assembly and the sewage station, prolonging the service life of the boiler, reducing the smoke discharge temperature of the boiler, improving the steam-to-steam ratio of steam production, saving the steam production cost, effectively improving the utilization efficiency of the energy, generating greater economic benefit and realizing the purpose of recycling the condensed water.
The foregoing embodiments are intended to illustrate that the invention may be implemented or used by those skilled in the art, and modifications to the above embodiments will be apparent to those skilled in the art, and therefore the invention includes, but is not limited to, the above embodiments, any methods, processes, products, etc., consistent with the principles and novel and inventive features disclosed herein, and fall within the scope of the invention.

Claims (10)

1. A waste heat recycling device is characterized by comprising a condensed water input assembly, a steam-water separation component for performing steam-water separation on condensed water, a steam treatment component for treating separated steam, a condensed water treatment assembly for treating the separated condensed water and a sewage station (1),
the condensed water input assembly is connected with the steam-water separation component, the steam treatment component is respectively connected with the steam-water separation component and the sewage station (1), and the condensed water treatment assembly is respectively connected with the steam-water separation component and the sewage station (1).
2. The waste heat recycling device according to claim 1, wherein the condensed water input assembly comprises a plurality of water collecting tanks (2) and a plurality of first water pumps (3) with the same number as the water collecting tanks (2),
the two water collecting tanks (2) and the two first water pumps (3) form a group of water collecting tanks, and the two water collecting tanks (2) and the two first water pumps (3) in each group are arranged at intervals;
in each water collecting pool group, the water collecting pool (2) and the first water pumps (3) are sequentially connected through a pipeline, and the last first water pump (3) is connected with the steam-water separation component through a pipeline.
3. A waste heat recovery device according to claim 1, characterized in that the steam-water separation means comprises a steam-water separator (4).
4. A waste heat recovery device according to claim 3, characterized in that the steam treatment unit comprises a domestic water tank (5),
one end opening of the domestic water tank (5) is connected with the steam-water separator (4) through a pipeline, so that the separated steam heats domestic water, and the other end opening of the domestic water tank (5) is connected with the sewage station (1) through a pipeline.
5. A waste heat recovery device according to claim 1, characterized in that the condensed water treatment unit comprises a condensed water storage unit, a soft water input unit, a boiler (6), a plurality of heat exchangers (7) and a plurality of transfer tanks (8) in the same number as the heat exchangers (7),
the condensed water storage assembly is respectively connected with the steam-water separation component and a plurality of first ports of the heat exchangers (7), the soft water input assembly is connected with a plurality of second ports of the heat exchangers (7) and a plurality of third ports of the heat exchangers (7) are connected with the sewage station (1) through ground grooves, and a plurality of fourth ports of the heat exchangers (7) are respectively in one-to-one correspondence with the transfer tanks (8) and are connected with one ports of the transfer tanks (8) through pipelines, and a plurality of the other ports of the transfer tanks (8) are connected with the boiler (6) through pipelines.
6. A waste heat recovery device according to claim 5, characterized in that the condensed water storage component comprises a water storage tank (9) and a plurality of second water pumps (10) with the same number as the heat exchangers (7),
one port of the water storage tank (9) is connected with the steam-water separation component through a pipeline, the other port of the water storage tank (9) is connected with one port of each second water pump (10) through a pipeline, and the other ports of the plurality of second water pumps (10) are in one-to-one correspondence with the plurality of second water pumps (10) and are connected with the first port of the heat exchanger (7) through pipelines.
7. The waste heat recycling device according to claim 6, wherein the condensed water storage assembly further comprises a liquid level control assembly, and the liquid level control assembly is assembled on the water storage tank (9) and is connected with the water storage tank through a circuit;
the liquid level control assembly is used for controlling a metering pump on the water storage tank (9) to be closed when the liquid level in the water storage tank (9) is greater than or equal to a preset threshold value;
and when the liquid level in the water storage tank (9) is smaller than the preset threshold value, controlling a metering pump on the water storage tank (9) to be started.
8. A waste heat recovery device according to claim 5, characterized in that the soft water input assembly comprises a soft water tank (11) and a plurality of third water pumps (12) in the same number as the heat exchangers (7),
the soft water tank (11) is respectively connected with one port of each third water pump (12) through a pipeline, and the soft water tank is multiple, and the other port of each third water pump (12) is respectively in one-to-one correspondence with the heat exchangers (7) and is connected with the second port of each heat exchanger (7) through a pipeline.
9. A waste heat recovery device according to claim 5, characterized in that the condensate treatment assembly further comprises a plurality of hardness gauges (13) in the same number as the transfer tank (8) and a plurality of PH gauges (14) in the same number as the transfer tank (8),
the hardness meters (13) are respectively in one-to-one correspondence with the transfer tanks (8) and are assembled on the transfer tanks (8), and the pH meters (14) are respectively in one-to-one correspondence with the transfer tanks (8) and are assembled on the transfer tanks (8).
10. The heat recovery device according to claim 9, further comprising a boiler control unit, wherein the boiler control unit is wirelessly connected to the plurality of hardness testers (13) and the plurality of PH meters (14), respectively.
CN202111571546.9A 2021-12-21 2021-12-21 Waste heat recycling device Pending CN114216117A (en)

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CN202111571546.9A CN114216117A (en) 2021-12-21 2021-12-21 Waste heat recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111571546.9A CN114216117A (en) 2021-12-21 2021-12-21 Waste heat recycling device

Publications (1)

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CN114216117A true CN114216117A (en) 2022-03-22

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Family Applications (1)

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CN202111571546.9A Pending CN114216117A (en) 2021-12-21 2021-12-21 Waste heat recycling device

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Country Link
CN (1) CN114216117A (en)

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