CN213811249U - Power plant waste heat ice making system - Google Patents
Power plant waste heat ice making system Download PDFInfo
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- CN213811249U CN213811249U CN202022253701.XU CN202022253701U CN213811249U CN 213811249 U CN213811249 U CN 213811249U CN 202022253701 U CN202022253701 U CN 202022253701U CN 213811249 U CN213811249 U CN 213811249U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
The utility model discloses a waste heat ice-making system of power plant in the field of waste heat refrigeration, which comprises an absorber and a generator, wherein a poor solution pipe and a rich solution pipe are connected between the generator and the absorber, a throttle valve is installed on the poor solution pipe, a circulating pump is installed on the rich solution pipe, the generator is connected with an air pipe, the air pipe is connected with a condenser, the condenser is connected with a first liquid pipe, the first liquid pipe is connected with a liquid ammonia tank, the liquid ammonia tank is connected with a second liquid pipe, a first control valve, a second control valve and a third control valve are installed on the second liquid pipe in parallel, ice is made by using waste heat of waste gas of the power plant, a large amount of heat energy waste is avoided, heat emission to the environment is reduced, waste heat is utilized for making ice, the ice is sold outwards afterwards, certain economic benefit can be provided for the power plant, the ice produced by the ice-making system can also be cooled for operating workers when the weather is hotter in summer, the effect of internal circulation is achieved, and the utilization efficiency of energy is improved.
Description
Technical Field
The utility model relates to a waste heat refrigeration field specifically is a waste heat ice making system of power plant.
Background
The waste heat refrigeration is a technology for driving a compression type or absorption type refrigerator to refrigerate by using gas or waste gas and waste liquid in the production process and heat exhausted by some power machines as energy sources. Waste heat refrigeration can help people to recover waste heat, energy consumption is saved, and cost is reduced.
Waste heat refrigeration is absorption refrigeration, which is compensated by consuming heat energy, and the heat energy is mainly low-level heat energy, such as steam with the pressure of 0.8Pa, or hot water with the temperature of more than 60 ℃, and industrial waste gas utilization.
The absorption refrigerating unit consists of generator, condenser, evaporator, absorber, circulating pump, throttle valve and other parts, and the working medium includes refrigerating agent for producing cold and absorbent for absorbing and desorbing the refrigerating agent to constitute working medium pair. The concentrated ammonia water solution is heated in the generator, the refrigerant steam with a certain flow rate is separated and enters the condenser, and the refrigerant steam is cooled in the condenser and condensed into liquid; the liquid cryogen is throttled and depressurized, enters the evaporator, is absorbed and evaporated in the evaporator to generate a cold effect, and the cryogen is changed into a gas state from a liquid state and then enters the absorber; in addition, the dilute solution flowing out of the generator enters the absorber after being subjected to heat exchanger and throttling depressurization, so as to absorb the refrigerant vapor from the evaporator, the concentrated solution generated in the absorption process is pressurized by the circulating pump, and enters the generator again after being subjected to heat absorption and temperature rise by the heat exchanger, so as to perform circulating refrigeration.
The ammonia absorption refrigeration uses naturally existing water or ammonia and the like as a refrigerant, and is harmless to the environment and the atmospheric ozone layer; the heat energy is used as driving energy, the heat energy generated by boiler steam and fuel can be utilized, low-grade heat energy such as waste heat, solar energy and the like can be utilized, and double purposes of refrigeration and heating (heating) can be realized in the same unit. The whole set of device is mostly a heat exchanger except a pump and a valve, so that the operation is quiet, and the vibration is small; meanwhile, the refrigerator has simple structure, safety, reliability and convenient installation. Under the current situation of energy shortage, power supply shortage and increasingly severe environmental problems, the absorption refrigeration technology has attracted extensive attention with its specific advantages.
This application utilizes waste heat refrigerated basic principle promptly, recycles power plant's used heat, provides a power plant's waste heat ice-making system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste heat ice making system of power plant to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a waste heat ice making system of power plant, includes absorber and generator, be connected with poor solution pipe and rich solution pipe between generator and the absorber, install the choke valve on the poor solution pipe, install the circulating pump on the rich solution pipe, the heat supply heat source of generator is exhaust steam, the generator is connected with the trachea, the trachea is connected with the condenser, the condenser is connected with first liquid pipe, first liquid pipe is connected with the liquid ammonia jar, the liquid ammonia jar is connected with the second liquid pipe.
Preferably, install first control valve and second control valve on the second liquid pipe side by side, first control valve is connected with the ice mould, the second control valve is connected with the freezer, ice mould and freezer all are connected with the absorber.
Preferably, still install the evaporimeter on the second liquid pipe, the evaporimeter is connected with the ethylene glycol circulating pipe, install the negative circulation pump on the ethylene glycol circulating pipe, the ethylene glycol circulating pipe is connected with ice mould and freezer.
Preferably, the phase-change material is arranged in the heat-insulating material of the refrigeration house, and the phase-change temperature of the phase-change material is 5 ℃ below zero to 20 ℃ below zero.
Preferably, the dead steam is wet electric steam of a steam header, the heat source further comprises a standby heat source, and the standby heat source is formed by decompressing power plant steam of more than 0.15 Mpa.
Preferably, a freezing runner and a demoulding runner which are mutually independent are arranged in the ice mould.
Preferably, the ethylene glycol aqueous solution storage tank is provided with a refrigerating heat exchange pipe and a heating heat exchange pipe.
Preferably, a spraying system is arranged around the ice mold, the refrigeration house, the ethylene glycol aqueous solution storage tank and the liquid ammonia tank.
Preferably, the second liquid pipe is further connected with a third control valve, the third control valve is connected with an ethylene glycol aqueous solution storage tank, and the ethylene glycol aqueous solution storage tank is connected with the absorber.
Compared with the prior art, the beneficial effects of the utility model are that:
the system for making ice by using the waste heat of the power plant,
1. the waste gas waste heat of the power plant is utilized to make ice, so that a large amount of heat energy waste is avoided, and the heat emission to the environment is reduced.
2. The waste heat is utilized to make ice, and the ice is sold after being made, so that certain economic benefit can be provided for a power plant.
3. The ice produced by the ice making system can also be cooled for operators in hot summer, so that the effect of internal circulation is achieved, and the utilization efficiency of energy is improved.
Drawings
FIG. 1 is a schematic view of the principle structure of the present invention;
FIG. 2 is a schematic view of the structure of the refrigeration storage of the present invention;
fig. 3 is a schematic diagram of the ethylene glycol refrigeration of the present invention.
In the figure: the system comprises an absorber 1, a generator 2, a condenser 3, a liquid ammonia tank 4, an ice mold 5, a cold storage 6, an ethylene glycol aqueous solution storage tank 7, a circulating pump 8 and a throttle valve 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a waste heat ice making system of power plant, including absorber 1 and generator 2, be connected with poor solution pipe and rich solution pipe between generator 2 and the absorber 1, install the choke valve on the poor solution pipe, install circulating pump 8 on the rich solution pipe, generator 2 is connected with the trachea, the trachea is connected with condenser 3, condenser 3 is connected with first liquid pipe, first liquid union coupling has liquid ammonia tank 4, the device utilizes the waste gas waste heat of power plant to make ice, a large amount of heat energy waste has been avoided, the heat emission to the environment has been reduced.
The liquid ammonia tank 4 is connected with a second liquid pipe, a first control valve, a second control valve and a third control valve are installed on the second liquid pipe in parallel, the first control valve is connected with an ice mold 5, the second control valve is connected with a refrigeration house 6, the third control valve is connected with a glycol aqueous solution storage tank, the ice mold 5, the refrigeration house 6 and the glycol aqueous solution storage tank 7 are connected with the absorber 1, ice is made by utilizing waste heat, the ice is sold to the outside after being made, certain economic benefit can be provided for a power plant, ice generated by an ice making system can be cooled for operating workers when the weather is hot in summer, the effect of internal circulation is achieved, and the utilization efficiency of energy is improved.
In the scheme, the main principle of ice making is that the gasification of liquid ammonia in the absorption refrigerating unit is utilized to absorb heat, and the volume of the liquid ammonia tank 4 is large, so that the stable refrigeration of the whole system is guaranteed. The heat supply source of the generator 2 is the steam exhaust and the wet electric steam of the steam header, the phase-change material is arranged in the heat-insulating material of the refrigeration house 6, the phase-change temperature is minus 5 to minus 20 ℃, the phase-change material is refrigerated in the ice-making process to change the phase-change material from liquid to solid, the storage time is prolonged by utilizing the heat absorption principle of the solid to liquid of the phase-change material in the stage of storing ice blocks,
the heat source also comprises a standby heat source, the standby heat source is formed by reducing the pressure of power plant steam of more than 0.15Mpa, when the waste heat can not meet the refrigeration requirement, the heat source is supplemented, the normal operation of the system is maintained, a freezing runner and a demoulding runner which are mutually independent are arranged in the ice mould 5, and after the ice making and ice nourishing processes are finished, the glycol water solution of 8-12 ℃ is pumped into the demoulding runner by a pump to separate the ice from the ice mould, so that the problems that the ice blocks generate cracks when the temperature is too high and the demoulding speed is slow when the temperature is too low are avoided.
The ethylene glycol aqueous solution storage tank 7 is provided with a refrigeration heat exchange tube and a heating heat exchange tube, the refrigeration heat exchange tube is used for carrying out heat exchange with a refrigeration system, and the heating heat exchange tube is used for carrying out heat exchange with condensate water coming out of a generator, so that the ethylene glycol aqueous solution can keep a stable temperature of 8-12 ℃, and the ice mold 5, the refrigeration house 6, the ethylene glycol aqueous solution storage tank 7 and the liquid ammonia tank 4 are provided with a spraying system around, so that ammonia can be sprayed and absorbed by water in time when accidents happen.
Referring to the attached drawing 3, liquid ammonia can be to the ethylene glycol solution cooling in the ethylene glycol circulating pipe, and the ethylene glycol is through ice mould (5) and freezer (6) again, makes ice and cools down, has avoided liquid ammonia and the direct contact of ice making device, adopts the mode of indirect ice-making, can promote the security of whole device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a power plant's waste heat ice-making system, includes absorber (1) and generator (2), its characterized in that: be connected with poor solution pipe and rich solution pipe between generator (2) and absorber (1), install the choke valve on the poor solution pipe, install circulating pump (8) on the rich solution pipe, the heat supply heat source of generator (2) is exhaust steam, generator (2) are connected with the trachea, the trachea is connected with condenser (3), condenser (3) are connected with first liquid pipe, first liquid pipe is connected with liquid ammonia tank (4), liquid ammonia tank (4) are connected with the second liquid pipe.
2. The power plant waste heat ice making system of claim 1, wherein: install first control valve and second control valve on the second liquid pipe side by side, first control valve is connected with ice mould (5), the second control valve is connected with freezer (6), ice mould (5) and freezer (6) all are connected with absorber (1).
3. The power plant waste heat ice making system of claim 1, wherein: still install the evaporimeter on the second liquid pipe, the evaporimeter is connected with the ethylene glycol circulating pipe, install vice circulating pump on the ethylene glycol circulating pipe, the ethylene glycol circulating pipe is connected with ice mould (5) and freezer (6).
4. The power plant waste heat ice making system of claim 2 or 3, wherein: phase change materials are arranged in the heat insulation materials of the refrigeration house (6), and the phase change temperature of the phase change materials is 5-20 ℃ below zero.
5. The power plant waste heat ice making system of claim 4, wherein: the exhaust steam is wet electric steam of a steam header, the heat source also comprises a standby heat source, and the standby heat source is formed by reducing the pressure of power plant steam of more than 0.15 Mpa.
6. The power plant waste heat ice making system of claim 5, wherein: and a freezing flow passage and a demoulding flow passage which are mutually independent are arranged in the ice mould (5).
7. The power plant waste heat ice making system of claim 2, wherein: and the second liquid pipe is also connected with a third control valve, the third control valve is connected with an ethylene glycol aqueous solution storage tank (7), and the ethylene glycol aqueous solution storage tank (7) is connected with the absorber (1).
8. The power plant waste heat ice making system of claim 7, wherein: the ethylene glycol aqueous solution storage tank (7) is provided with a refrigerating heat exchange pipe and a heating heat exchange pipe.
9. The power plant waste heat ice making system of claim 8, wherein: and a spraying system is arranged around the ice mold (5), the refrigeration house (6), the ethylene glycol aqueous solution storage tank (7) and the liquid ammonia tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253701.XU CN213811249U (en) | 2020-10-12 | 2020-10-12 | Power plant waste heat ice making system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253701.XU CN213811249U (en) | 2020-10-12 | 2020-10-12 | Power plant waste heat ice making system |
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| CN213811249U true CN213811249U (en) | 2021-07-27 |
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| CN202022253701.XU Active CN213811249U (en) | 2020-10-12 | 2020-10-12 | Power plant waste heat ice making system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017943A (en) * | 2021-11-02 | 2022-02-08 | 普泛能源技术研究院(北京)有限公司 | Novel heat-driven absorption type ice making unit and method thereof |
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2020
- 2020-10-12 CN CN202022253701.XU patent/CN213811249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017943A (en) * | 2021-11-02 | 2022-02-08 | 普泛能源技术研究院(北京)有限公司 | Novel heat-driven absorption type ice making unit and method thereof |
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Effective date of registration: 20230523 Address after: 230000 building 6, shuimuyuan, Yanhu hi tech R & D base (Tsinghua Science and Technology City, Hefei), West Xiyou Road, North Jinxiu Avenue, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui pupan Energy Technology Co.,Ltd. Address before: Room 201, 2 / F, Xingfa building, 45 Zhongguancun Street, Haidian District, Beijing Patentee before: Pupan Energy Technology Research Institute (Beijing) Co.,Ltd. |
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