CN214700959U - Closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch - Google Patents
Closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch Download PDFInfo
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- CN214700959U CN214700959U CN202120167520.7U CN202120167520U CN214700959U CN 214700959 U CN214700959 U CN 214700959U CN 202120167520 U CN202120167520 U CN 202120167520U CN 214700959 U CN214700959 U CN 214700959U
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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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model provides a closed surface formula water-cooling condenser waste heat recovery heating device that easily switches, belongs to condenser waste heat recovery heating technical field. The system comprises a condenser, an open cooling tower, a constant-pressure water supplementing device, a variable-frequency circulating water pump, a heating user, an electric valve I, an electric valve II, an electric valve III, an electric valve IV and a connecting pipeline; an electric valve II and an electric valve IV are arranged on a main inlet/outlet pipeline of the open cooling tower, and an electric valve I and an electric valve III are arranged on a main water supply/return pipeline at the heating user side; a constant-pressure water replenishing device (3) is arranged on a suction inlet pipeline of the variable-frequency circulating water pump to form a closed circulating heat supply system; the condenser is connected with the electric valve I and the electric valve II through connecting pipelines. The device has the advantages of energy conservation, environmental protection, safety and reliability.
Description
Technical Field
The utility model belongs to the technical field of the condenser waste heat recovery heat supply, especially, relate to a surface formula water-cooling condenser waste heat recovery heating device is easily switched to closed, be applicable to the waste heat utilization of steam turbine power generation surface formula water-cooling condenser.
Background
The surface water-cooled condenser is a heat exchanger (also called a water re-condenser) for condensing the steam discharged by a steam turbine into water, and is mainly used in a steam turbine power device for condensing the steam discharged by the steam turbine into water for a boiler to reuse, and can also establish vacuum and maintain the vacuum at the steam discharged by the steam turbine so as to ensure the normal operation of the power generation of the steam turbine.
The circulating cooling water of the condenser belongs to the field of industrial low-temperature waste heat, the normal water outlet temperature can reach 38-45 ℃, and the water outlet problem of the circulating water of the condenser can be improved to 55-60 ℃ or even higher by changing the operation state of a steam turbine. In order to ensure the normal operation of the turbine for power generation, the condenser must be forcibly cooled by circulating cooling water. The circulating cooling water after passing through the condenser is sent to a cooling tower for cooling, and heat is dissipated into the atmospheric environment, so that a large amount of low-temperature heat source heat is wasted. In order to meet the national requirements of energy conservation and emission reduction and avoid the waste of energy, the waste heat of the partial condenser can be recycled.
Because the waste heat quality of the condenser is low, the production load change of the steam turbine is large, the waste heat of the part is difficult to meet the requirements of drying supplied materials or producing and heating by other processes, and the domestic waste heat utilization mode of the condenser is less at present. In addition, the condenser recirculated cooling water generally adopts open cooling tower at present, and quality of water is relatively poor, and impurity such as suspended solid is more, directly utilizes and easily causes equipment, pipeline corruption, jam, and the maintenance work volume is big, and the life of equipment, pipeline is extremely short-lived. However, the amount of circulating cooling water of the condenser is extremely large, and taking a 13.5MW power generator set as an example, the maximum amount of circulating cooling water can reach 2000m3The residual heat of the low temperature is utilized, and the residual heat is unfortunately utilized.
Disclosure of Invention
An object of the utility model is to provide an easy surface formula water-cooling condenser waste heat recovery heating device that switches of closed has solved condenser recirculated cooling water and has generally adopted open cooling tower, and quality of water is relatively poor, and impurity such as suspended solid is more, directly utilizes and easily causes equipment, pipeline corruption, jam, and maintenance work volume is big, and the extremely brief not enough of life of equipment, pipeline has realized exchanging heat with the condenser is indirect, has avoided the jam that equipment, pipeline caused, can carry out effectual recovery to the condenser waste heat and be used for the heat supply. In addition, through the setting of electric valve, can easily realize the switching of heating season heating system and non-heating season cooling tower system, guarantee that steam turbine power generation is not influenced.
The utility model discloses a condenser 1, open cooling tower 2, level pressure moisturizing device 3, frequency conversion circulating water pump 4, heating user 5, electric valve I6, electric valve II7, electric valve III8, electric valve IV9 and connecting tube. An electric valve II7 and an electric valve IV9 are arranged on a main inlet/outlet pipeline of the open type cooling tower 2, and an electric valve I6 and an electric valve III8 are arranged on a main water supply/return pipeline at the side of a heating user 5, so that the cooling tower system and the heating system can be switched easily between a heating season and a non-heating season.
And a constant-pressure water supplementing device 3 is arranged on a suction inlet pipeline of the variable-frequency circulating water pump 4 to form a closed circulating heat supply system. The condenser 1 is a heat exchanger for condensing the steam discharged by the steam turbine into water, and the condenser 1 is connected with the electric valve I6 and the electric valve II7 through connecting pipelines and serves as a heat supply source in a waste heat recycling device system.
The utility model discloses a waste heat recovery system sets up independent waste heat water circulating pump, level pressure moisturizing device for closed system.
In non-heating seasons, the electric valve I6 and the electric valve III8 are closed, the electric valve II7 and the electric valve IV9 are opened, circulating cooling water enters the condenser 1, passes through the pipeline and the electric valve II7, enters the open cooling tower 2 for cooling, passes through the pipeline and the electric valve IV9, then enters the condenser 1, and the circulation is repeated.
In the heating season, an electric valve II7 and an electric valve IV9 are closed, an electric valve I6 and an electric valve III8 are opened, circulating cooling water enters a condenser 1, and enters a heating user 5 after passing through a pipeline, the electric valve I6 and a variable-frequency circulating water pump 4, the circulating cooling water enters the condenser 1 after passing through the pipeline and the electric valve III8, and a constant-pressure water supplementing device 3 is arranged on a suction inlet pipeline of the variable-frequency circulating water pump 4 to form a closed circulating heating system.
The utility model has the advantages that:
1) the waste heat of the low-temperature waste heat of the condenser circulating cooling water industry is utilized, and energy conservation and environmental protection are facilitated.
2) Through the setting of electrically operated valve, the effectual system switching problem of having solved heating season and non-heating season.
3) The frequency conversion circulating water pump can realize system operation energy conservation through frequency conversion regulation according to heat load change.
4) The waste heat recovery adopts a closed system, is completely separated from the outside, and can realize the safety and reliability of the system operation.
5) The circulating medium of the heating system adopts demineralized water, so that the problems of corrosion and blockage of equipment and pipelines caused by poor water quality and more impurities such as suspended matters are solved at one time, the service lives of the equipment and the pipelines are prolonged to the maximum extent, and the operation and maintenance cost is saved.
Description of the drawings:
FIG. 1 is a schematic diagram of the system of the present invention. The system comprises a condenser 1, an open cooling tower 2, a constant-pressure water supplementing device 3, a variable-frequency circulating water pump 4, a heating user 5, an electric valve I6, an electric valve II7, an electric valve III8 and an electric valve IV 9.
Detailed Description
The utility model discloses a condenser 1, open cooling tower 2, level pressure moisturizing device 3, frequency conversion circulating water pump 4, heating user 5, electric valve I6, electric valve II7, electric valve III8, electric valve IV9 and connecting tube.
An electric valve II7 and an electric valve IV9 are arranged on an inlet and outlet main pipeline of the open type cooling tower 2, and an electric valve I6 and an electric valve III8 are arranged on a water supply/return main pipeline at the side of a heating user 5.
In non-heating seasons, the electric valve I6 and the electric valve III8 are closed, the electric valve II7 and the electric valve IV9 are opened, circulating cooling water enters the condenser 1, passes through the pipeline and the electric valve II7, enters the open cooling tower 2 for cooling, passes through the pipeline and the electric valve IV9, then enters the condenser 1, and the circulation is repeated.
In the heating season, an electric valve II7 and an electric valve IV9 are closed, an electric valve I6 and an electric valve III8 are opened, circulating cooling water enters a condenser 1, and enters a heating user 5 after passing through a pipeline, the electric valve I6 and a variable-frequency circulating water pump 4, the circulating cooling water enters the condenser 1 after passing through the pipeline and the electric valve III8, and a constant-pressure water supplementing device 3 is arranged on a suction inlet pipeline of the variable-frequency circulating water pump 4 to form a closed circulating heating system.
Claims (2)
1. A closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch is characterized by comprising a condenser (1), an open cooling tower (2), a constant-pressure water supplementing device (3), a variable-frequency circulating water pump (4), a heating user (5), an electric valve I (6), an electric valve II (7), an electric valve III (8), an electric valve IV (9) and a connecting pipeline; an electric valve II (7) and an electric valve IV (9) are arranged on a main inlet/outlet pipeline of the open cooling tower (2), and an electric valve I (6) and an electric valve III (8) are arranged on a main water supply/return pipeline at the side of a heating user (5); a constant-pressure water replenishing device (3) is arranged on a suction inlet pipeline of the variable-frequency circulating water pump (4) to form a closed circulating heat supply system; the condenser (1) is connected with the electric valve I (6) and the electric valve II (7) through connecting pipelines.
2. The closed easy-switching surface type water-cooled condenser waste heat recovery and supply device according to claim 1, characterized in that: the waste heat recovery system is provided with an independent waste heat water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120167520.7U CN214700959U (en) | 2021-01-21 | 2021-01-21 | Closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120167520.7U CN214700959U (en) | 2021-01-21 | 2021-01-21 | Closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214700959U true CN214700959U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120167520.7U Active CN214700959U (en) | 2021-01-21 | 2021-01-21 | Closed surface type water-cooling condenser waste heat recovery and heat supply device easy to switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214700959U (en) |
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2021
- 2021-01-21 CN CN202120167520.7U patent/CN214700959U/en active Active
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