CN218298855U - Enclosed bus environment control system - Google Patents
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- CN218298855U CN218298855U CN202222862728.8U CN202222862728U CN218298855U CN 218298855 U CN218298855 U CN 218298855U CN 202222862728 U CN202222862728 U CN 202222862728U CN 218298855 U CN218298855 U CN 218298855U
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Abstract
The utility model belongs to the technical field of nuclear power station power generation equipment, a closed bus environmental control system is disclosed. The closed bus environment control system comprises an air supply device, a main closed bus environment adjusting device and an air pressure control device, wherein the main closed bus environment adjusting device comprises a first electromagnetic valve, an air cooling device, a first pressure gauge and a first pressure transmitter; the wind pressure control device is electrically connected with the first electromagnetic valve and the first pressure transmitter, and the wind pressure control device is used for controlling the opening or closing of the first electromagnetic valve according to the first pressure value. This enclosed bus environmental control system can in time adjust the atmospheric pressure and the temperature of main enclosed bus, uses same set of pipeline with the air feed with the cooling, effectively reduces spare part use quantity, promotes space utilization, is convenient for maintain.
Description
Technical Field
The utility model relates to a nuclear power station power generation equipment technical field especially relates to enclosed bus environmental control system.
Background
Under the reality of global warming, environmental deterioration and increasingly tense energy supply, nuclear power is regarded as an important component of world energy, and is valued by more and more countries due to the advantages of cleanness, high efficiency and safety. The main power generation system of the nuclear power station generally adopts a closed bus to connect a generator with a main transformer, a high-voltage plant transformer, an exciting transformer and a PT cabinet main transformer low-voltage side grounding transformer, and the performance of the main power generation system is related to the safe operation of the whole power system such as a nuclear power station.
In general, a closed bus of a main power generation system of a nuclear power plant is divided into a main closed bus and a bypass closed bus, and since the rated current of the main closed bus is high, forced air cooling is required, while the bypass closed bus is usually naturally cooled. And, in order to prevent external moisture, during dust etc. gets into the enclosed bus, generally adopt the pressure-fired system to provide dry clean gas to the enclosed bus, make the atmospheric pressure in the enclosed bus be a little higher than external atmospheric pressure and form the atmoseal, thereby avoid external moisture, dust, inside invasion enclosed bus such as haze and industrial waste gas, effectively restrain the inside production of dewing of enclosed bus, effectively improve enclosed bus is insulating, the probability of the accident of flashover in the enclosed bus has also been reduced to a great extent, the gas tightness of bus has also been increased simultaneously, can effectually prevent hydrogen infiltration entering bus.
In order to ensure that the main enclosed bus forms an air seal, a wind pressure control device is generally required to be arranged on the main enclosed bus, and in order to inhibit the generation of dew condensation inside the main enclosed bus, an air cooling device is also required to be arranged on the main enclosed bus.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a closed bus environmental control system, this closed bus environmental control system can improve space utilization with main closed bus wind pressure control and air cooling device sharing tuber pipe.
To achieve the purpose, the utility model adopts the following technical proposal:
enclosed bus environmental control system, enclosed bus environmental control system includes:
the gas supply device is used for supplying gas to the closed bus;
the main closed bus environment adjusting device comprises a first electromagnetic valve, an air cooling device, a first pressure gauge and a first pressure transmitter, wherein the air cooling device is provided with an air inlet, an air supplementing opening and an air return opening, the inlet of the first electromagnetic valve is connected with the outlet of the air supply device, the outlet of the first electromagnetic valve is connected with the air inlet, the air supplementing opening is used for supplementing air for the main closed bus, the air return opening is used for returning air of the main closed bus to the air cooling device, the first pressure gauge is installed on a pipeline between the main closed bus and the air return opening, the first pressure transmitter is installed between the air return opening and the first pressure gauge, and the first pressure transmitter is used for obtaining a first pressure value of the first pressure gauge;
the wind pressure control device is electrically connected with the first electromagnetic valve and the first pressure transmitter and is used for controlling the first electromagnetic valve to be opened or closed according to the first pressure value.
Preferably, the closed bus environment control system further comprises a bypass closed bus air supply device, the bypass closed bus air supply device comprises a second electromagnetic valve, a second pressure gauge and a second pressure transmitter, an inlet of the second electromagnetic valve is connected with an outlet of the air supply device, an outlet of the second electromagnetic valve and the second pressure gauge are both connected with the bypass closed bus, the second pressure transmitter is installed between the second pressure gauge and the bypass closed bus, and the second pressure transmitter is used for obtaining a second pressure value of the second pressure gauge; and the wind pressure control device is electrically connected with the second electromagnetic valve and the second pressure transmitter, and the wind pressure control device is used for controlling the opening or closing of the second electromagnetic valve according to the second pressure value.
Preferably, a first safety release valve is arranged on a pipeline between the first pressure gauge and the first pressure transmitter, and a second safety release valve is arranged on a pipeline between the second pressure gauge and the second pressure transmitter.
Preferably, the main enclosed bus environment adjusting device further comprises a first air compensating valve, and the first air compensating valve is located between the outlet of the air supply device and the air inlet.
Preferably, the main enclosed bus environment adjusting device further comprises a first equipment isolating valve, an inlet of the first equipment isolating valve is connected with an outlet of the first electromagnetic valve and an outlet of the first air supplementing valve, and an outlet of the first equipment isolating valve is connected with the air inlet.
Preferably, the main closed bus environment adjusting device further comprises a first loop isolating valve, an inlet of the first loop isolating valve is connected with an outlet of the gas supply device, and an outlet of the first loop isolating valve is connected with an inlet of the first electromagnetic valve and an inlet of the first gas supplementing valve.
Preferably, the bypass closed bus air supply device further comprises a second air compensating valve, and the second air compensating valve is located between the outlet of the air supply device and the bypass closed bus.
Preferably, the bypass closed bus air supply device further comprises a second loop isolation valve, an inlet of the second loop isolation valve is connected with an outlet of the air supply device, and an outlet of the second loop isolation valve is connected with an inlet of the second electromagnetic valve and an inlet of the second air compensation valve.
Preferably, the air supply device comprises an air compressor, a third equipment isolation valve, a third pressure gauge, an air filter, a pressure reducing valve and a dehumidifier which are sequentially connected, and an outlet of the dehumidifier is communicated with the first electromagnetic valve and the second electromagnetic valve.
Preferably, the air supply device further comprises an electric heater, and an inlet of the electric heater is connected with an outlet of the dehumidifier.
The utility model has the advantages that:
the utility model discloses a closed bus environmental control system, this closed bus environmental control system includes air feeder, main closed bus environmental control unit and wind pressure control unit, main closed bus environmental control unit includes first solenoid valve, the air cooling device, first manometer and first pressure transmitter, the air cooling device has the air intake, mend wind gap and return air inlet, the entry and the exit linkage of air feeder of first solenoid valve, the export and the air intake linkage of first solenoid valve, mend the wind gap and be used for main closed bus air supplementation, the return air inlet is used for main closed bus return air to the air cooling device, first manometer is installed on the pipeline between main closed bus and the return air inlet, and first pressure transmitter installs between return air gap and first manometer, first pressure transmitter is used for obtaining the first pressure value of first manometer; the wind pressure control device is electrically connected with the first electromagnetic valve and the first pressure transmitter, and the wind pressure control device is used for controlling the opening or closing of the first electromagnetic valve according to the first pressure value. This closed bus environmental control system's main closed bus environment adjusting device is with the air inlet of main closed bus and get pressure and air cooling device sharing tuber pipe, has carried out effectual integration, has obviously reduced the space that occupies, promotes space utilization, is convenient for maintain.
Drawings
FIG. 1 is a first schematic view of the closed bus environmental control system of the present invention;
FIG. 2 is a second schematic view of the closed bus environmental control system of the present invention;
FIG. 3 is a partial enlarged view of A in FIG. 2;
FIG. 4 is a partial enlarged view of B in FIG. 2;
fig. 5 is a partially enlarged view of C in fig. 2.
In the figure:
1. a main enclosed bus; 2. a bypass enclosed bus;
10. a main enclosed bus environment adjusting device; 11. a first solenoid valve; 12. an air cooling device; 121. an air inlet; 122. an air supply opening; 123. an air return inlet; 13. a first pressure gauge; 14. a first pressure transmitter; 15. a first safety relief valve; 16. a first gulp valve; 17. a first equipment isolation valve; 18. a first circuit isolation valve;
20. a bypass closed bus gas supply device; 21. a second solenoid valve; 22. a second pressure gauge; 23. a second pressure transmitter; 24. a second safety relief valve; 25. a second gulp valve; 26. a second circuit isolation valve;
30. a gas supply device; 31. an air compressor; 32. a third equipment isolation valve; 33. a third pressure gauge; 34. an air filter; 35. a pressure reducing valve; 36. a dehumidifier; 37. an electric heater;
40. a wind pressure control device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The nuclear power is a facility for generating power by taking nuclear energy as energy, and has the characteristics of cleanness and high efficiency, a main power generation system of the nuclear power station generally adopts a closed bus to connect a generator with a main transformer, a high-voltage plant transformer, an excitation transformer and a PT cabinet main transformer low-voltage side grounding transformer, and the performance of the main power generation system is related to the safe operation of the whole power system of the nuclear power station and the like. The enclosed bus is the enclosed type, and main enclosed bus is for forcing the air cooling, and bypass enclosed bus is natural cooling to in the use, inside in order to prevent invasion enclosed bus such as external moisture, dust, haze and industrial waste gas, the atmospheric pressure that need keep enclosed bus usually is higher than external atmosphere and forms the atmoseal. To main enclosed bus, both need set up wind pressure controlling means, need set up the air cooling device again, these two devices set up alone usually among the prior art, not only lead to the structure complicated, and occupation space is great, still can lead to overhauing the difficulty.
Accordingly, the present embodiment provides a closed bus environmental control system.
As shown in fig. 1 to fig. 5, the closed bus environment control system provided in this embodiment includes an air supply device 30, a main closed bus environment adjusting device 10, and an air pressure control device 40, where the main closed bus environment adjusting device 10 includes a first electromagnetic valve 11, an air cooling device 12, a first pressure gauge 13, and a first pressure transmitter 14, the air cooling device 12 has an air inlet 121, an air supplementing opening 122, and a return air opening 123, an inlet of the first electromagnetic valve 11 is connected to an outlet of the air supply device 30, an outlet of the first electromagnetic valve 11 is connected to the air inlet 121, the air supplementing opening 122 is used for supplementing air to the main closed bus 1, the return air opening 123 is used for returning air from the main closed bus 1 to the air cooling device 12, the first pressure gauge 13 is installed on a pipeline between the main closed bus 1 and the return air opening 123, and the first pressure transmitter 14 is installed between the return air opening 123 and the first pressure gauge 13, and the first pressure gauge 14 is used for obtaining a first pressure value of the first pressure gauge 13; the wind pressure control device 40 is electrically connected to both the first electromagnetic valve 11 and the first pressure transmitter 14, and the wind pressure control device 40 is configured to control opening or closing of the first electromagnetic valve 11 according to the first pressure value. Specifically, in this embodiment, the first electromagnetic valve 11 is a dual-electric three-position electromagnetic valve for controlling air intake at the main sealed bus 1, the first pressure gauge 13 is communicated with the main sealed bus 1 for detecting a first air pressure value of the main sealed bus 1, when the air pressure of the main sealed bus 1 is lower than a set value, the first pressure transmitter 14 can transmit a signal to the air pressure control device 40, the air pressure control device 40 in this embodiment is a PLC, the PLC controls the first electromagnetic valve 11 to be opened based on the first air pressure value, the air supply device 30 can supply air to the main sealed bus 1 through the air cooling device 12, and the air is cooled by the air cooling device 12, and the cooled air can cool the main sealed bus 1, so that not only can a purpose of supplementing air to the main sealed bus 1 to form an air seal, but also a purpose of cooling the main sealed bus 1 can be achieved at the same time. The enclosed bus environmental control system in this embodiment uses the same tuber pipe with cooling and make-up gas to arrange, has both reduced the use of spare part, can promote space utilization again, because spare part arranges comparatively concentratedly, can be convenient for again personnel maintain.
Further, the closed bus environment control system further comprises a bypass closed bus air supply device 20, the bypass closed bus air supply device 20 comprises a second electromagnetic valve 21, a second pressure gauge 22 and a second pressure transmitter 23, an inlet of the second electromagnetic valve 21 is connected with an outlet of the air supply device 30, an outlet of the second electromagnetic valve 21 and the second pressure gauge 22 are both connected with the bypass closed bus 2, the second pressure transmitter 23 is installed between the second pressure gauge 22 and the bypass closed bus 2, and the second pressure transmitter 23 is used for obtaining a second pressure value of the second pressure gauge 22; and the wind pressure control device 40 is electrically connected with the second electromagnetic valve 21 and the second pressure transmitter 23, and the wind pressure control device 40 is used for controlling the second electromagnetic valve 21 to open or close according to the second pressure value. Specifically, in this embodiment, the second electromagnetic valve 21 is a dual-electric three-position electromagnetic valve for controlling air supply of the bypass closed bus 2, three pipelines are provided behind the second electromagnetic valve 21 for simultaneously supplying air to the three-way bypass closed bus 2, the three air supply pipelines are connected with a second pressure gauge 22, the second pressure gauge 22 is connected with a second pressure transmitter 23, the second pressure gauge 22 is used for detecting a second air pressure value of the bypass closed bus 2, the second pressure transmitter 23 is used for feeding back information of the second air pressure value to the air pressure control device 40, the air pressure control device 40 in this embodiment is a PLC, and the PLC controls opening and closing of the second electromagnetic valve 21 based on the second air pressure value. When the air pressure in the bypass closed bus 2 is insufficient, the second pressure transmitter 23 detects a real-time second air pressure value of the second pressure gauge 22 in real time and transmits the real-time second air pressure value to the PLC, the PLC controls the second electromagnetic valve 21 to be opened, and the air supply device 30 supplies air to the bypass closed bus 2 through the second electromagnetic valve 21 until the set air pressure value is reached, and then the PLC controls the second electromagnetic valve 21 to be closed. The bypass enclosed bus air supply device 20 and the main enclosed bus environment adjusting device 10 adopt the same air supply device 30, the air sealing requirements of the main enclosed bus 1 and the bypass enclosed bus 2 can be met simultaneously, the structure can be further simplified, the use of parts is reduced, and the space utilization rate is improved.
Further, a first safety relief valve 15 is arranged on a pipeline between the first pressure gauge 13 and the first pressure transmitter 14, and a second safety relief valve 24 is arranged on a pipeline between the second pressure gauge 22 and the second pressure transmitter 23. The arrangement is used for protecting the enclosed busbar and avoiding damage to the enclosed busbar caused by internal overpressure. Specifically, the rated pressure values of the first safety relief valve 15 and the second safety relief valve 24 in the embodiment are set to 2500Pa, and when the air pressure inside the main enclosed bus 1 or the bypass enclosed bus 2 reaches 2500Pa, the first safety relief valve 15 and the second safety relief valve 24 will release pressure, and can play a role in protecting the main enclosed bus 1 and the bypass enclosed bus 2.
Further, the main enclosed bus environment adjusting device 10 further includes a first air compensating valve 16, and the first air compensating valve 16 is located between the outlet of the air supply device 30 and the air inlet 121. Specifically, the first air compensation valve 16 is a manual valve, is installed between the outlet of the air supply device 30 and the air inlet 121, and is substantially connected in parallel with the first electromagnetic valve 11, and when the first electromagnetic valve 11 fails, a person can manually open the first air compensation valve 16 to supply air to the main enclosed bus 1, so as to ensure that the air sealing effect inside the main enclosed bus 1 does not fail.
Further, the main enclosed bus environment adjusting device 10 further includes a first device isolation valve 17, an inlet of the first device isolation valve 17 is connected to both an outlet of the first electromagnetic valve 11 and an outlet of the first gulp valve 16, and an outlet of the first device isolation valve 17 is connected to the air inlet 121. Specifically, the provision of the first device isolation valve 17 can isolate the air-cooling device 12 from the first solenoid valve 11 and the air supply device 30, thereby facilitating maintenance of the air-cooling device 12 and avoiding interference with other circuits during maintenance.
Further, the main closed bus environment adjusting device 10 further includes a first loop isolation valve 18, an inlet of the first loop isolation valve 18 is connected with an outlet of the gas supply device 30, and an outlet of the first loop isolation valve 18 is connected with both an inlet of the first electromagnetic valve 11 and an inlet of the first gulp valve 16. Specifically, the first loop isolation valve 18 is arranged to isolate the first electromagnetic valve 11, the air cooling device 12, the first pressure gauge 13 and the first pressure transmitter 14 of the main closed bus environment adjusting device 10, so that maintenance is facilitated, interference to the air supply system, the second electromagnetic valve 21 and the like in maintenance can be avoided, and normal operation of another loop is ensured.
Further, the bypass enclosed busbar air supply device 20 further comprises a second air compensating valve 25, and the second air compensating valve 25 is located between the outlet of the air supply device 30 and the bypass enclosed busbar 2. Specifically, the second air compensation valve 25 is a manual valve, is disposed between the outlet of the air supply device 30 and the bypass closed bus 2, is substantially in parallel with the second electromagnetic valve 21, and when the second electromagnetic valve 21 fails, a person can manually open the first air compensation valve 16 to supply air to the bypass closed bus 2, thereby ensuring that the air sealing effect inside the bypass closed bus 2 does not fail.
Further, the bypass closed bus gas supply device 20 further comprises a second circuit isolation valve 26, an inlet of the second circuit isolation valve 26 is connected with an outlet of the gas supply device 30, and an outlet of the second circuit isolation valve 26 is connected with an inlet of the second electromagnetic valve 21 and an inlet of the second gulp valve 25. Specifically, the second loop isolation valve 26 is provided to isolate the second electromagnetic valve 21 and the like of the closed bypass bus air supply device 20, so that the second electromagnetic valve 21 and the like can be maintained conveniently, interference on another loop during maintenance is avoided, and normal operation of the other loop is ensured.
Further, the air supply device 30 includes an air compressor 31, a third device isolation valve 32, a third pressure gauge 33, an air filter 34, a pressure reducing valve 35, and a dehumidifier 36, which are connected in sequence, and an outlet of the dehumidifier 36 is communicated with both the first electromagnetic valve 11 and the second electromagnetic valve 21. Specifically, the provision of the third device isolation valve 32 can facilitate maintenance of the air compressor 31, and avoid the occurrence of air leakage and the like when the air compressor 31 is maintained; the third pressure gauge 33 is used for detecting the air pressure in the air supply device 30, the air filter 34 is used for filtering the air provided by the air supply device 30, the pressure reducing valve 35 is used for preventing the air pressure in the air supply device 30 from being too high, and the dehumidifier 36 is used for drying the air to prevent the moisture in the air from entering the closed bus to damage the closed bus.
Further, the air supply device 30 further includes an electric heater 37, and an inlet of the electric heater 37 is connected to an outlet of the dehumidifier 36. Specifically, the electric heater 37 provided in the present embodiment can be used for thermal maintenance of the enclosed bus bar when the power plant is out of service for maintenance.
It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Enclosed bus environmental control system, its characterized in that enclosed bus environmental control system includes:
the gas supply device (30), the gas supply device (30) is used for supplying gas for the enclosed bus;
the main closed bus environment adjusting device (10) comprises a first electromagnetic valve (11), an air cooling device (12), a first pressure gauge (13) and a first pressure transmitter (14), the air cooling device (12) is provided with an air inlet (121), an air supplementing opening (122) and an air return opening (123), an inlet of the first electromagnetic valve (11) is connected with an outlet of the air supply device (30), an outlet of the first electromagnetic valve (11) is connected with the air inlet (121), the air supplementing opening (122) is used for supplementing air for the main closed bus (1), the air return opening (123) is used for returning air to the air cooling device (12) from the main closed bus (1), the first pressure gauge (13) is installed on a pipeline between the main closed bus (1) and the air return opening (123), the first pressure transmitter (14) is installed between the air return opening (123) and the first pressure gauge (13), and the first pressure transmitter (14) is used for obtaining a first pressure value of the first pressure gauge (13);
wind pressure controlling means (40), wind pressure controlling means (40) with first solenoid valve (11), first pressure transmitter (14) all electricity is connected, wind pressure controlling means (40) are used for according to first pressure value control opening or closing of first solenoid valve (11).
2. The closed bus environment control system according to claim 1, further comprising a bypass closed bus air supply device (20), wherein the bypass closed bus air supply device (20) comprises a second electromagnetic valve (21), a second pressure gauge (22) and a second pressure transmitter (23), an inlet of the second electromagnetic valve (21) is connected with an outlet of the air supply device (30), an outlet of the second electromagnetic valve (21) and the second pressure gauge (22) are both connected with the bypass closed bus (2), the second pressure transmitter (23) is installed between the second pressure gauge (22) and the bypass closed bus (2), and the second pressure transmitter (23) is used for obtaining a second pressure value of the second pressure gauge (22); and the wind pressure control device (40) is electrically connected with the second electromagnetic valve (21) and the second pressure transmitter (23), and the wind pressure control device (40) is used for controlling the opening or closing of the second electromagnetic valve (21) according to the second pressure value.
3. The enclosed bus environment control system of claim 2, wherein a first safety relief valve (15) is disposed on a pipe between the first pressure gauge (13) and the first pressure transmitter (14), and a second safety relief valve (24) is disposed on a pipe between the second pressure gauge (22) and the second pressure transmitter (23).
4. The enclosed busbar environmental control system of claim 2, wherein the main enclosed busbar environmental conditioning device (10) further comprises a first air make-up valve (16), the first air make-up valve (16) being located between the outlet of the air supply device (30) and the air inlet (121).
5. The enclosed bus environment control system of claim 4, wherein the main enclosed bus environment regulating device (10) further comprises a first equipment isolation valve (17), an inlet of the first equipment isolation valve (17) is connected with an outlet of the first solenoid valve (11) and an outlet of the first gulp valve (16), and an outlet of the first equipment isolation valve (17) is connected with the air inlet (121).
6. The closed bus environment control system according to claim 5, characterized in that the main closed bus environment regulation device (10) further comprises a first circuit isolation valve (18), wherein an inlet of the first circuit isolation valve (18) is connected with an outlet of the gas supply device (30), and an outlet of the first circuit isolation valve (18) is connected with an inlet of the first solenoid valve (11) and an inlet of the first gulp valve (16).
7. The enclosed busbar environmental control system of claim 2, wherein the by-pass enclosed busbar air supply (20) further comprises a second air make-up valve (25), the second air make-up valve (25) being located between the outlet of the air supply (30) and the by-pass enclosed busbar (2).
8. The enclosed bus environment control system of claim 7, wherein the by-pass enclosed bus air supply device (20) further comprises a second circuit isolation valve (26), an inlet of the second circuit isolation valve (26) is connected with an outlet of the air supply device (30), and an outlet of the second circuit isolation valve (26) is connected with an inlet of the second solenoid valve (21) and an inlet of the second air compensation valve (25).
9. The enclosed bus environment control system of any one of claims 2-8, wherein the air supply device (30) comprises an air compressor (31), a third device isolation valve (32), a third pressure gauge (33), an air filter (34), a pressure reducing valve (35), and a dehumidifier (36) connected in sequence, and an outlet of the dehumidifier (36) is communicated with the first solenoid valve (11) and the second solenoid valve (21).
10. The enclosed bus environment control system of claim 9, wherein said gas supply (30) further comprises an electric heater (37), an inlet of said electric heater (37) being connected to an outlet of said dehumidifier (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222862728.8U CN218298855U (en) | 2022-10-28 | 2022-10-28 | Enclosed bus environment control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222862728.8U CN218298855U (en) | 2022-10-28 | 2022-10-28 | Enclosed bus environment control system |
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| CN218298855U true CN218298855U (en) | 2023-01-13 |
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| CN202222862728.8U Active CN218298855U (en) | 2022-10-28 | 2022-10-28 | Enclosed bus environment control system |
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