CN219103366U - Refrigerating system of compressed air station and compressed air station with refrigerating system - Google Patents
Refrigerating system of compressed air station and compressed air station with refrigerating system Download PDFInfo
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- CN219103366U CN219103366U CN202223440730.2U CN202223440730U CN219103366U CN 219103366 U CN219103366 U CN 219103366U CN 202223440730 U CN202223440730 U CN 202223440730U CN 219103366 U CN219103366 U CN 219103366U
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Abstract
The utility model relates to the technical field of temperature control of nuclear power plants, in particular to a refrigerating system of a compressed air station and the compressed air station with the refrigerating system. A compressed air station refrigeration system installed in a compressed air station room, comprising: the air inlet of the air compressor is communicated with the outside of the compressed air station room; the buffer assembly is arranged at the air outlet end of the air compressor, the heat exchanger is communicated with the outlet end of the buffer assembly, and the air supply main pipe is communicated with a pipeline between the buffer assembly and the heat exchanger and used for providing compressed air for compressed air users. The air compressor in the compressed air station is utilized to produce compressed air to serve as a refrigerating medium, so that the temperature of the compressed air station room is reduced, the internal equipment of the compressed air station room is not required to be rearranged according to the design requirement of the nuclear power plant, the original layout of the original equipment in the compressed air station room can be maintained, and additional temperature control equipment is not required to be installed, so that the temperature reduction cost of the compressed air station of the nuclear power plant is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of temperature control of nuclear power plants, in particular to a refrigerating system of a compressed air station and the compressed air station with the refrigerating system.
Background
When the compressed air station works, the highest environmental temperature in the machine room should not be higher than 40 ℃, the duty room or the centralized control room should not be higher than 28 ℃, and a ventilation or cooling device should be arranged. In particular, compressed air stations installed in areas with a high temperature are operated in summer, and the temperature in the station room is high, in particular, a cooling device is required.
At present, the arrangement of a compressed air station is generally only provided with a fan for ventilation and no air conditioning equipment, and when the nuclear power plant operates in summer, the air compressor still needs to operate at full load and a temporary cabinet air conditioner is often required to be arranged. However, the working environment in the nuclear power plant has related requirements on selection, design, arrangement and the like of the cabinet air conditioner, temporary setting is not a long-term schedule, and the cabinet air conditioner needs to consume a large amount of energy when operating and cooling in a high-temperature environment, so that the cooling cost of the compressed air station of the nuclear power plant is high.
Invention of the utility model
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defect of higher cooling cost of the compressed air station of the nuclear power plant in the prior art, thereby providing a compressed air station refrigerating system and a compressed air station with the same.
In order to solve the technical problem, the present utility model provides a refrigeration system of a compressed air station, which is installed in a room of the compressed air station, and comprises:
the air inlet of the air compressor is communicated with the outside of the compressed air station room;
the buffer assembly is arranged at the air outlet end of the air compressor, the heat exchanger is communicated with the outlet end of the buffer assembly, and the air supply main pipe is communicated with a pipeline between the buffer assembly and the heat exchanger and used for providing compressed air for compressed air users.
Optionally, the heat exchangers are arranged in series, and the inlet section of each group of heat exchangers is provided with a throttle valve.
Optionally, the gas outlet end of the heat exchanger is in communication with the compressed air station room.
Optionally, the gas outlet end of the heat exchanger is connected with an exhaust branch, and the exhaust branch is communicated with the outside of the compressed air station room.
Optionally, the buffer assembly comprises a wet buffer tank, a dryer and a dry buffer tank which are sequentially arranged in series, wherein an inlet of the wet buffer tank is communicated with an air outlet end of the air compressor.
Optionally, a regulating valve is installed on the pipeline between the air supply main pipe and the heat exchanger, and is used for controlling the flow rate and the flow quantity of the compressed air flowing into the heat exchanger.
Optionally, the air inlet end of the heat exchanger is fitted with a flow meter.
The utility model also provides a compressed air station room, which is provided with the compressed air station refrigerating system.
Optionally, a temperature monitoring component is installed in the station room body and used for measuring the temperature in the station room body in real time, and the temperature monitoring component is electrically connected with the compressed air station refrigerating system.
The technical scheme of the utility model has the following advantages:
1. the utility model provides a refrigerating system of a compressed air station, which is arranged in a room of the compressed air station and comprises: the air inlet of the air compressor is communicated with the outside of the compressed air station room; the buffer assembly is arranged at the air outlet end of the air compressor, the heat exchanger is communicated with the outlet end of the buffer assembly, and the air supply main pipe is communicated with a pipeline between the buffer assembly and the heat exchanger and used for providing compressed air for compressed air users.
According to the operation requirement of the nuclear power station, the air compressor in the compressed air station can always operate, compressed air is provided for compressed air users in the nuclear power station, sufficient air supply pressure is ensured, and one branch pipe is led out of the air supply main pipe and is supplied to the refrigerating system for the compressed air station. Compressed air enters the heat exchanger through the throttle valve, heat exchange is carried out between the heat exchanger and indoor air, the compressed air is throttled and depressurized, and the indoor air temperature is reduced to achieve a refrigerating effect. The air compressor in the compressed air station is utilized to produce compressed air to serve as a refrigerating medium, so that the temperature of the compressed air station room is reduced, the internal equipment of the compressed air station room is not required to be rearranged according to the design requirement of the nuclear power plant, the original layout of the original equipment in the compressed air station room can be maintained, and additional temperature control equipment is not required to be installed, so that the temperature reduction cost of the compressed air station of the nuclear power plant is greatly reduced.
2. According to the compressed air station refrigeration system provided by the utility model, the heat exchangers are connected in series, and the inlet section of each heat exchanger is provided with the throttle valve. Adopt throttle many times, step down cooling, the mode of many times heat transfer cools down compressed air station room, promotes refrigerating system's cooling efficiency.
3. According to the compressed air station refrigerating system provided by the utility model, the gas outlet end of the heat exchanger is communicated with the inside of a compressed air station room, and low-pressure air at the outlet of the heat exchanger can be directly discharged into the station room for cooling.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a compressed air station refrigeration system provided in an embodiment of the present utility model.
Reference numerals illustrate: 1. an air compressor; 2. a wet buffer tank; 3. a dryer; 4. a dry buffer tank; 5. a gas supply main pipe; 6. a throttle valve; 7. a heat exchanger; 8. an exhaust branch.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in fig. 1, the refrigerating system of the compressed air station provided in the embodiment is installed in a compressed air station room, and comprises an original air compressor 1 and a buffer component in the compressed air station room, and a heat exchanger 7.
The air inlet of the air compressor 1 is communicated with the outside of the compressed air station room. The buffer assembly is installed at the air outlet end of air compressor 1, and buffer assembly's exit end intercommunication has heat exchanger 7, and the intercommunication has air feed parent tube 5 on the pipeline between buffer assembly and the heat exchanger 7 for provide compressed air to compressed air user. The heat exchangers 7 are arranged in series, and the inlet section of each group of heat exchangers 7 is provided with a throttle valve 6.
The air compressor 1 provides continuous compressed air, and the compressed air enters the heat exchanger 7 to exchange heat with hot air in the station room body after throttling, depressurization and cooling through the throttle valve 6, and the air convection in the station room body and the heat radiation of the heat exchanger are used for effectively cooling the inner space of the station room body.
The gas outlet end of the heat exchanger 7 is provided with an exhaust pipeline which is directly communicated with the inside of the compressed air station room. An exhaust branch 8 is further communicated on an exhaust pipeline of the gas outlet end of the heat exchanger 7, and the exhaust branch 8 is communicated with the outside of the compressed air station room. When the heat exchanger 7 can control the internal temperature of the station room body to be in a set range, the exhaust pipeline is closed, all low-pressure air after heat exchange is discharged out of the station room body from the exhaust branch pipe 8, and when the heat exchanger 7 works and can not ensure that the internal temperature of the station room body is lower than the set highest temperature, the exhaust pipeline is opened, and the low-pressure air after heat exchange is directly utilized to cool the internal of the station room body.
The buffer assembly comprises a wet buffer tank 2, a dryer 3 and a dry buffer tank 4 which are sequentially arranged in series, wherein an inlet of the wet buffer tank 2 is communicated with an air outlet end of the air compressor 1. The compressed gas generated by the air compressor 1 is stored in the wet buffer tank 2, the volume of the wet buffer tank 2 can be selected according to the power of the air compressor 1 and the requirement of a compressed air user, the purposes of stabilizing the pressure of the produced compressed air and removing water to a certain extent are generally ensured, the input end of the wet buffer tank 2 is arranged on the lower side wall of the wet buffer tank, and the output end is arranged on the upper side wall of the other side of the wet buffer tank 2, so that the compressed air can fully fill the whole wet buffer tank 2 from bottom to top and the pressure stabilizing effect can be achieved. Since the compressed gas generated by the air compressor 1 contains a certain amount of moisture, and the requirement of the refrigeration circuit for dry compressed gas cannot be satisfied, the output end of the wet buffer tank 2 is connected to the dry buffer tank 4. The input end of the dry buffer tank 4 is connected to the output end of the dryer 3 through a pipe, and the volume and the setting position of the input end/output end are the same as those of the wet buffer tank 2. The dry buffer tank 4 can also effectively stabilize the pressure of the compressed air.
A regulating valve for controlling the flow rate and flow rate of the compressed air flowing into the heat exchanger 7 is installed on a pipe line between the air supply main pipe 5 and the heat exchanger 7. The air inlet end of the heat exchanger 7 is provided with a flowmeter for measuring the flow of the compressed air entering the heat exchanger 7 and feeding back to adjust the opening of the regulating valve.
A compressed air station refrigeration system comprising: compression, drying, throttling and heat exchange; wherein: compression: the atmosphere enters the air compressor 1 through the air suction port of the air compressor 1 to be compressed; and (3) drying: the air enters a dryer 3 through a wet buffer tank 2 to be dried, so that water vapor in the air is separated out, and the air humidity is reduced; throttling: the dried air is throttled by a throttle valve 6, and the temperature is reduced; heat exchange: the compressed air after throttling exchanges heat with indoor air through the heat exchanger 7, so that the temperature of the indoor air is reduced, and meanwhile, low-pressure air output from the heat exchanger 7 can be introduced into the station building body room to directly replace indoor high-temperature air to cool the room. According to the operation requirement of the nuclear power station, the air compressor 1 can always operate to provide compressed air for compressed air users in the nuclear power station, and ensure sufficient air supply pressure, and one branch pipe is led out of the air supply main pipe 5 to be supplied to a refrigerating system for the compressed air station. By opening the throttle valve 6 and adjusting the valve opening, the gas pressure behind the valve can be adjusted. The high-pressure air flows through the throttle valve 6, the temperature and the pressure are reduced after the throttle effect, the cooled and depressurized gas enters the heat exchanger 7, heat exchange is carried out between the heat exchanger 7 and indoor air, and the cooling effect is realized by reducing the temperature of the indoor air. The low-pressure air at the outlet of the heat exchanger 7 can be directly discharged into the station house body for cooling, so that the indoor air temperature is reduced.
Example 2
This embodiment provides a compressed air station room, as shown in fig. 1, having the compressed air station refrigeration system described in embodiment 1. The station room is internally provided with a temperature sensor serving as a temperature monitoring component for measuring the temperature in the station room in real time, the temperature monitoring component is electrically connected with a compressed air station refrigerating system, and the compressed air station refrigerating system adjusts the flow speed and flow of compressed air input into the heat exchanger by utilizing the temperature fed back by the temperature monitoring component so as to control the temperature in the station room in a set range.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (9)
1. A compressed air station refrigeration system, characterized by being installed in a compressed air station room, comprising:
an air compressor (1) with an air inlet communicating with the outside of the compressed air station;
the buffer assembly is installed at the air outlet end of the air compressor (1), the heat exchanger (7) is communicated with the outlet end of the buffer assembly, and the air supply main pipe (5) is communicated with a pipeline between the buffer assembly and the heat exchanger (7) and used for providing compressed air for compressed air users.
2. A compressed air station refrigeration system according to claim 1, characterized in that the heat exchangers (7) are arranged in series with groups, the inlet section of each group of heat exchangers (7) being fitted with a throttle valve (6).
3. A compressed air station refrigeration system according to claim 1 or 2, characterized in that the gas outlet end of the heat exchanger (7) communicates with the inside of the compressed air station room.
4. A compressed air station refrigeration system according to claim 3, characterized in that the gas outlet end of the heat exchanger (7) is connected with a discharge branch (8), the discharge branch (8) being in communication with the outside of the compressed air station room.
5. A compressed air station refrigeration system according to any one of claims 1 to 3, characterized in that the buffer assembly comprises a wet buffer tank (2), a dryer (3) and a dry buffer tank (4) arranged in series in sequence, the wet buffer tank (2) inlet communicating with the air outlet end of the air compressor (1).
6. A compressed air station refrigeration system according to any one of claims 1 to 3, characterized in that a regulating valve is mounted on the line between the air supply main (5) and the heat exchanger (7) for controlling the flow rate and flow of compressed air into the heat exchanger (7).
7. A compressed air station refrigeration system according to claim 6, characterized in that the air inlet end of the heat exchanger (7) is fitted with a flow meter.
8. A compressed air station room, characterized by having a compressed air station refrigeration system according to any one of claims 1 to 7.
9. The compressed air station room of claim 8, wherein a temperature monitoring assembly is installed in the station room body for measuring the temperature in the station room body in real time, and the temperature monitoring assembly is electrically connected with a compressed air station refrigeration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440730.2U CN219103366U (en) | 2022-12-20 | 2022-12-20 | Refrigerating system of compressed air station and compressed air station with refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223440730.2U CN219103366U (en) | 2022-12-20 | 2022-12-20 | Refrigerating system of compressed air station and compressed air station with refrigerating system |
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| Publication Number | Publication Date |
|---|---|
| CN219103366U true CN219103366U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223440730.2U Active CN219103366U (en) | 2022-12-20 | 2022-12-20 | Refrigerating system of compressed air station and compressed air station with refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219103366U (en) |
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2022
- 2022-12-20 CN CN202223440730.2U patent/CN219103366U/en active Active
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