Exhaust air microcirculation system of indirect air cooling radiator
By designing an air exhaust microcirculation system for indirect air-cooled radiator including main mechanism and auxiliary mechanism, the problem of oxygen entering the air-cooled radiator cooling water system in high and low temperature areas caused by sudden drop in temperature is solved, and the effect of preventing the cooling water from freezing and ensuring the normal operation of the air-cooled radiator is achieved.
Patent Information
- Application Number
- CN202421757776.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In high and low temperature areas, a large amount of oxygen enters the circulating cooling water system of the air-cooled radiator, causing a sudden drop in temperature and freezing of the circulating water, affecting the operation of the air-cooled radiator.
An air exhaust microcirculation system for indirect air-cooled radiator is designed, including a main mechanism and an auxiliary mechanism. The main mechanism is pumped to the air-cooling tower radiator through cooling water circulation, and then sent to the second condenser through a pressure regulating turbine, and enters the next cycle through the throttle valve. The auxiliary mechanism includes a convection heater, a waste heat collection tube, a vacuum pump, a low pressure heater and a deaerator to prevent further reduction of the cooling water temperature and prevent condensation of the cooling water.
It effectively prevents further reduction of the cooling water temperature, avoids freezing of circulating water, and ensures the normal operation of the air-cooled radiator.
Smart Images
Figure CN223050466U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of indirect air-cooled heat dissipation, in particular to an air exhaust microcirculation system for an indirect air-cooled radiator. Background Technique
[0002] The indirect air-cooled system mainly has two forms: the indirect air-cooled system with a mixing condenser and the indirect air-cooled system with a surface condenser. Among them, the indirect air-cooled system with a mixing condenser is also called the Heller indirect air-cooled system, and the indirect air-cooled system with a surface condenser is also called the Hamon indirect air-cooled system.
[0003] Advantages of the Heller indirect air-cooled system: It operates with a slightly positive pressure low-pressure water system and is relatively easy to master; it can be matched with a medium back-pressure steam turbine. Disadvantages are: the aluminum air-cooled radiator has poor resistance to flushing and freezing; the air-cooled radiator is arranged outside the tower, and its load-carrying capacity is easily affected by strong winds; the equipment system is complex. The Heller indirect air-cooled system is generally suitable for power plants with mild climate, no strong winds, and basic loads.
[0004] However, in the prior art, when the air-cooled radiator is arranged outside the tower in high-cold and low-temperature regions, if a large amount of oxygen enters the circulating cooling water system, it may cause the temperature of the circulation system to drop suddenly, and then the circulating water freezes, thus affecting the operation of the air-cooled radiator. Content of the Utility Model
[0005] (1) Technical Problems to be Solved
[0006] The purpose of the utility model is to provide an air exhaust microcirculation system for an indirect air-cooled radiator to solve the problem in the above background technique that when the air-cooled radiator is arranged outside the tower in high-cold and low-temperature regions, if a large amount of oxygen enters the circulating cooling water system, it may cause the temperature of the circulation system to drop suddenly, and then the circulating water freezes, thus affecting the operation of the air-cooled radiator.
[0007] (2) Technical Solutions
[0008] To achieve the above purpose, the utility model provides the following technical solutions: An air exhaust microcirculation system for an indirect air-cooled radiator includes a main body mechanism and an auxiliary mechanism. The auxiliary mechanism is located outside the main body mechanism. The main body mechanism includes an air-cooled tower, a pneumatic valve, and a first condenser. The pneumatic valve is fixedly installed on the left side of the air-cooled tower, and the first condenser is fixedly installed to the left of the pneumatic valve; the main body mechanism also includes a steam turbine, a regulating water turbine, a waste heat collecting pipe, a convection heater, an isolation box, a return heat pipe, a vacuum pump, a second condenser, a throttle valve, a radiator body, a low-pressure heater, and a deaerator. The steam turbine is fixedly installed to the left of the first condenser.
[0009] Preferably, the pressure-regulating water turbine is fixedly installed on the left side of the steam turbine, and the waste heat collecting pipe is fixedly installed above the pressure-regulating water turbine. Cooling water enters the first condenser and directly mixes with the exhaust steam of the steam turbine and condenses it. Most of the heated cooling water is sent to the air-cooled tower radiator by the cooling water circulation pump. After being cooled by convective heat exchange with air, the cooling water is sent to the second condenser through the pressure-regulating water turbine and enters the next cycle through the throttle valve.
[0010] Preferably, the convective heater is fixedly installed above the pressure-regulating water turbine, and the isolation box is fixedly installed on the left side of the convective heater. When the air is cooled by convective heat exchange and passes through the pressure-regulating water turbine, oxygen and carbon dioxide may enter, causing the temperature of the cooling water to drop further, thereby affecting the cycle. The convective heater starts to heat the heat return pipe inside the isolation box to promote the temperature of the cooling water to rise.
[0011] Preferably, the heat return pipe is fixedly installed inside the isolation box, the vacuum pump is fixedly installed above the isolation box, and the second condenser is fixedly installed above the vacuum pump. The waste heat collecting pipe is connected to the isolation box and can collect the waste heat inside the isolation box. The vacuum pump starts to pump out the air inside the isolation box from this circulation system. The installation of the waste heat collecting pipe can prevent the temperature of the cooling water from dropping further.
[0012] Preferably, the throttle valve is fixedly installed on the right side of the second condenser, the radiator body is fixedly installed on the right side of the second condenser of the low-pressure heater, and the deaerator is fixedly installed on the right side of the low-pressure heater. The low-pressure heater can prevent the temperature of the cooling water from dropping further. The deaerator starts to pump out the air inside the isolation box from this circulation system.
[0013] Preferably, the auxiliary mechanism includes a coil heater, a temperature controller, and an electric heating tube. The coil heater is fixedly installed below the air-cooled tower. When the coil heater starts, it heats the electric heating tube through the temperature controller.
[0014] Preferably, the temperature controller is fixedly installed above the coil heater, and the electric heating tube is fixedly installed inside the air-cooled tower. After the electric heating tube is heated, the temperature inside the air-cooled tower rises, which is convenient for the user to control the temperature inside the air-cooled tower and prevent the cooling water inside the air-cooled tower from condensing.
[0015] Compared with the prior art, the beneficial effects of the present utility model are:
[0016] 1. The air exhaust microcirculation system of the indirect air-cooled radiator. Through the installation of the main mechanism, cooling water enters the first condenser and directly mixes with the exhaust steam of the steam turbine and condenses it. Most of the heated cooling water is sent to the air-cooled tower radiator by the cooling water circulation pump. After being cooled by convection heat exchange with air, the cooling water is sent to the second condenser through the regulating water turbine, and then enters the next cycle through the throttle valve. When the cooling water is cooled by convection heat exchange with air and passes through the regulating water turbine, oxygen and carbon dioxide may enter, causing the temperature of the cooling water to drop further, thereby affecting the cycle. The convection heater starts to heat the return heat pipe inside the isolation box, prompting the temperature of the cooling water to rise. The waste heat collection pipe is connected to the isolation box, which can collect the waste heat inside the isolation box. The vacuum pump starts to pump out the air inside the isolation box from this circulation system. The installation of the waste heat collection pipe can prevent the temperature of the cooling water from dropping further, and the low-pressure heater can also prevent the temperature of the cooling water from dropping further. The deaerator starts to pump out the air inside the isolation box from this circulation system;
[0017] 2. The air exhaust microcirculation system of the indirect air-cooled radiator. Through the installation of the auxiliary mechanism, the coil heater starts to heat the electric heating pipe through the temperature controller, facilitating the user to control the temperature inside the air-cooled tower and preventing the cooling water inside the air-cooled tower from condensing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;
[0019] Figure 2 is a schematic cross-sectional structure diagram of the air-cooled tower of the present utility model;
[0020] Figure 3 is a schematic partial cross-sectional structure diagram of the present utility model;
[0021] Figure 4 is a schematic partial cross-sectional structure diagram of the present utility model.
[0022] In the figure: 1. Main mechanism; 101. Air-cooled tower; 102. Pneumatic valve; 103. First condenser; 104. Steam turbine; 105. Regulating water turbine; 106. Waste heat collection pipe; 107. Convection heater; 108. Isolation box; 109. Return heat pipe; 110. Vacuum pump; 111. Second condenser; 112. Throttle valve; 113. Radiator body; 114. Low-pressure heater; 115. Deaerator; 2. Auxiliary mechanism; 201. Coil heater; 202. Temperature controller; 203. Electric heating pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.
[0024] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: an air exhaust microcirculation system for an indirect air-cooled radiator, including a main body mechanism 1 and an auxiliary mechanism 2. The auxiliary mechanism 2 is located outside the main body mechanism 1. The main body mechanism 1 includes an air-cooled tower 101, a pneumatic valve 102, and a first condenser 103. The pneumatic valve 102 is fixedly installed on the left side of the air-cooled tower 101, and the first condenser 103 is fixedly installed to the left of the pneumatic valve 102; the main body mechanism 1 further includes a steam turbine 104, a regulating water turbine 105, a waste heat collection pipe 106, a convection heater 107, an isolation box 108, a return heat pipe 109, a vacuum pump 110, a second condenser 111, a throttle valve 112, a radiator body 113, a low-pressure heater 114, and a deaerator 115. The steam turbine 104 is fixedly installed to the left of the first condenser 103, the regulating water turbine 105 is fixedly installed to the left of the steam turbine 104, the waste heat collection pipe 106 is fixedly installed above the regulating water turbine 105, the convection heater 107 is fixedly installed above the regulating water turbine 105, the isolation box 108 is fixedly installed to the left of the convection heater 107, the return heat pipe 109 is fixedly installed inside the isolation box 108, the vacuum pump 110 is fixedly installed above the isolation box 108, the second condenser 111 is fixedly installed above the vacuum pump 110, the throttle valve 112 is fixedly installed to the right of the second condenser 111, the radiator body 113 is fixedly installed at, the low-pressure heater 114 to the right of the second condenser 111, and the deaerator 115 is fixedly installed to the right of the low-pressure heater 114.
[0025] The auxiliary mechanism 2 includes a coil heater 201, a temperature controller 202, and an electric heating tube 203. The coil heater 201 is fixedly installed below the air-cooled tower 101, the temperature controller 202 is fixedly installed above the coil heater 201, and the electric heating tube 203 is fixedly installed inside the air-cooled tower 101. When using the air exhaust microcirculation system of the indirect air-cooled radiator, the cooling water enters the first condenser 103 and directly mixes with the exhaust steam of the steam turbine 104 and condenses it. Most of the heated cooling water is sent to the radiator of the air-cooled tower 101 by the cooling water circulation pump, and after being cooled by convective heat exchange with the air, it is sent to the second condenser 111 through the regulating water turbine 105, and then enters the next cycle through the throttle valve 112. When the cooling water passes through the regulating water turbine 105 after being cooled by convective heat exchange with the air, oxygen and carbon dioxide may enter, causing the temperature of the cooling water to drop further, thereby affecting the cycle. The convection heater 107 is started to heat the heat return pipe 109 inside the isolation box 108, promoting the temperature of the cooling water to rise. The waste heat collection pipe 106 is connected to the isolation box 108, and can collect the waste heat inside the isolation box 108. The vacuum pump 110 is started to pump out the air inside the isolation box 108 from this circulation system. The installation of the waste heat collection pipe 106 can prevent the temperature of the cooling water from dropping further. The low-pressure heater 114 can prevent the temperature of the cooling water from dropping further. The deaerator 115 is started to pump out the air inside the isolation box 108 from this circulation system. The coil heater 201 is started to heat the electric heating tube 203 through the temperature controller 202, facilitating the user to control the temperature inside the air-cooled tower 101 and preventing the cooling water inside the air-cooled tower 101 from condensing.
[0026] Working principle: When using the air exhaust microcirculation system of the indirect air-cooled radiator, the cooling water enters the first condenser 103 and directly mixes with the exhaust steam of the steam turbine 104 to condense it. Most of the heated cooling water is sent to the radiator of the air-cooled tower 101 by the cooling water circulation pump. After being cooled by convective heat exchange with air, the cooling water is sent to the second condenser 111 through the regulating water turbine 105, and then enters the next cycle through the throttle valve 112. When the cooling water passes through the regulating water turbine 105 after being cooled by convective heat exchange with air, oxygen and carbon dioxide may enter, causing the temperature of the cooling water to drop further, thereby affecting the cycle. The convective heater 107 is started to heat the return heat pipe 109 inside the isolation box 108, prompting the temperature of the cooling water to rise. The waste heat collection pipe 106 is connected to the isolation box 108 to collect the waste heat inside the isolation box 108. The vacuum pump 110 is started to extract the air inside the isolation box 108 from this circulation system. The installation of the waste heat collection pipe 106 can prevent the temperature of the cooling water from dropping further. The low-pressure heater 114 can prevent the temperature of the cooling water from dropping further. The deaerator 115 is started to extract the air inside the isolation box 108 from this circulation system. The coil heater 201 is started to heat the electric heating pipe 203 through the temperature controller 202, facilitating the user to control the temperature inside the air-cooled tower 101 and preventing the cooling water inside the air-cooled tower 101 from condensing.
[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.
Claims
1. An exhaust air microcirculation system for an indirect air-cooling radiator, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located outside the main mechanism (1); the main mechanism (1) comprises an air cooling tower (101), a pneumatic valve (102) and a first condenser (103); the pneumatic valve (102) is fixedly installed on the left side of the air cooling tower (101); and the first condenser (103) is fixedly installed on the left side of the pneumatic valve (102); The main structure (1) also includes a steam turbine (104), a pressure regulating turbine (105), a waste heat collection pipe (106), a convection heater (107), an isolation box (108), a heat recovery pipe (109), a vacuum pump (110), a second condenser (111), a throttle valve (112), a radiator body (113), a low-pressure heater (114) and a deaerator (115), and the steam turbine (104) is fixedly installed on the left side of the first condenser (103).
2. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 1 is characterized in that: The pressure regulating water turbine (105) is fixedly installed on the left side of the steam turbine (104), and the waste heat collecting pipe (106) is fixedly installed above the pressure regulating water turbine (105).
3. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 2 is characterized in that: The convection heater (107) is fixedly installed above the pressure regulating turbine (105), and the isolation box (108) is fixedly installed on the left side of the convection heater (107).
4. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 3 is characterized by: The heat recovery pipe (109) is fixedly installed inside the isolation box (108), the vacuum pump (110) is fixedly installed above the isolation box (108), and the second condenser (111) is fixedly installed above the vacuum pump (110).
5. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 4 is characterized in that: The throttle valve (112) is fixedly installed on the right side of the second condenser (111), the radiator body (113) is fixedly installed on the right side of the low-pressure heater (114) and the deaerator (115) is fixedly installed on the right side of the low-pressure heater (114).
6. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 5, characterized in that: The auxiliary mechanism (2) comprises a coil heater (201), a temperature controller (202) and an electric heating tube (203); the coil heater (201) is fixedly installed below the air cooling tower (101).
7. The exhaust air microcirculation system of the indirect air cooling radiator according to claim 6, characterized in that: The temperature controller (202) is fixedly installed above the coil heater (201), and the electric heating tube (203) is fixedly installed on the inner side of the air cooling tower (101).