CN217584045U - Modular sulfur hexafluoride gas recovery device - Google Patents
Modular sulfur hexafluoride gas recovery device Download PDFInfo
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- CN217584045U CN217584045U CN202220428835.7U CN202220428835U CN217584045U CN 217584045 U CN217584045 U CN 217584045U CN 202220428835 U CN202220428835 U CN 202220428835U CN 217584045 U CN217584045 U CN 217584045U
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Abstract
The utility model discloses a combination formula sulfur hexafluoride gas recovery device based on modularization, including evacuation system, compression system, gas storage system and control system, evacuation system is used for the evacuation of air chamber, and compression system is used for compressed gas, and control system is connected with evacuation system, compression system and gas storage system in order to control being connected and keeping apart between evacuation system, compression system and the gas storage system. The utility model discloses can solve the contradiction of equipment working capacity and transport passageway, nimble, convenient, save the engineering investment.
Description
Technical Field
The utility model belongs to the technical field of power generation engineering and distribution engineering, especially, relate to a gaseous recovery unit of combination formula sulfur hexafluoride based on modularization.
Background
Sulfur fluoride is a colorless, odorless, nonflammable, noncorrosive, non-reactive, relatively nontoxic, suffocating gas that is widely used in the electrical industry for its good insulating and arc extinguishing properties. Equipment using sulfur hexafluoride gas as an insulating and arc extinguishing medium, including GIL (gas insulated metal enclosed transmission line), GIS (gas insulated metal enclosed switchgear), and the like, is widely used in power generation and distribution projects. Meanwhile, sulfur hexafluoride gas is one of the six greenhouse gases found at present, and the sulfur hexafluoride gas can generate toxic decomposition products under the action of high-temperature electric arcs. Sulfur hexafluoride gas or toxic decomposition products thereof are discharged into the atmosphere, which causes pollution and damage to the environment in which humans live, and also causes adverse effects on the normal operation of electrical equipment and the health of people. Therefore, the sulfur hexafluoride gas recovery treatment work is extremely important.
After the electrical equipment is installed or overhauled, sulfur hexafluoride gas is filled into an air chamber of the electrical equipment by a gas recovery device through two main processes of vacuumizing and filling; when the equipment needs to be overhauled, the gas recovery device recovers and fills sulfur hexafluoride gas in the equipment into the gas storage tank through two main steps of recovery and purification, so as to achieve the purposes of recycling and reducing the emission of sulfur hexafluoride. The sulfur hexafluoride gas recovery device usually adopts the existing shaping integrated products in the market, and generally has the functions of recovery, inflation, purification, vacuum pumping, gas storage and online control. The air charging and exhausting capability of the shaped product series can basically meet the requirements of filling and exhausting of various sulfur hexafluoride electrical equipment. For an electrical equipment room with limited transportation or carrying channel conditions, the shaped integrated product cannot be transported to the site, so that the equipment is difficult to overhaul; or some electrical equipment has large capacity, the sulfur hexafluoride gas chamber has large capacity, and the sulfur hexafluoride gas chamber can not be configured to corresponding sizing integrated products, so that a sulfur hexafluoride gas recovery and filling device which can be disassembled and is easy to combine needs to be researched, and the problems are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solves the above-mentioned technical problem who exists among the prior art, provides a gaseous recovery unit of combination formula sulfur hexafluoride based on the modularization, can solve equipment working capacity and transport passageway's contradiction, nimble, convenient, save the engineering investment.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a gaseous recovery unit of combination formula sulfur hexafluoride based on modularization which characterized in that: the device comprises a vacuumizing system, a compression system, an air storage system and a control system, wherein the vacuumizing system is used for vacuumizing an air chamber, the compression system is used for compressing air, and the control system is connected with the vacuumizing system, the compression system and the air storage system so as to control connection and isolation among the vacuumizing system, the compression system and the air storage system. The sulfur hexafluoride gas recovery device is formed by connecting four systems, the systems are mutually independent and are connected by adopting the metal hoses, on one hand, the systems can be assembled and spliced according to the use requirements of the air chambers, the use is flexible and the transportation is convenient, the contradiction between the working capacity of equipment and a carrying channel is solved, on the other hand, the recovery device adopts a split and split tank type structure, the size and the weight of single equipment are reduced, the requirement on the equipment carrying channel is reduced, and therefore the engineering investment caused by the increase of the size of a civil engineering (vertical shaft) caused by the increase of the size and the transportation weight of the transportation channel is saved.
Further, the vacuumizing system comprises a vacuum pump and a vacuumizing device, the vacuum pump is provided with a first quick coupling, and the vacuumizing device is provided with a second quick coupling and a third quick coupling. Vacuum pump and evacuating device all are used for the vacuum to extract the air chamber, and the first quick-operation joint of vacuum pump is used for the high-speed joint with the air chamber, and evacuating device sets up second quick-operation joint and third quick-operation joint and is arranged in storing the gas suction gas storage system in the air chamber.
Further, the compression system includes a compression device that is provided with a fourth quick coupling and a fifth quick coupling. The compression device is used for compressing gas, and the fourth quick coupling and the fifth quick coupling facilitate connection between the compression device and other systems.
Further, the gas storage system comprises a gas bottle group and a gas storage tank, and the gas bottle group and the gas storage tank are respectively provided with a sixth quick connector, a first normally open valve and a first vacuum pressure gauge. The gas cylinder group and the gas storage tank are used for gas storage and gas supply of the gas chamber, and the first vacuum pressure gauge is used for displaying gas pressure, so that sulfur hexafluoride gas can be conveniently recovered and filled, and the operation safety is ensured.
Further, the control system comprises a first control module, a second control module and a third control module, the first control module is arranged between the air chamber and the vacuumizing system and used for controlling the communication between the air chamber and the vacuumizing system, the second control module is arranged between the vacuumizing system and the compression system and used for controlling the communication between the vacuumizing system and the compression system, and the third control module is arranged between the compression system and the air storage system and used for controlling the communication between the compression system and the air storage system. The control system is not only used for communicating the vacuum pumping system, the compression system and the gas storage system, but also can change the number of the connecting systems according to the use requirements so as to achieve the simplest assembly, ensure that the recovery device can stably operate, and facilitate the transfer and transportation of the modules.
Furthermore, the first control module comprises three first control tubes, a seventh quick coupling, a second normally open valve, a second vacuum pressure gauge and an eighth quick coupling are sequentially arranged on each first control tube, and a communicating pipe is arranged between every two adjacent first control tubes. The first control module is used for controlling communication between the vacuum pumping system and the air chamber, the three first control tubes can be connected with one vacuum pump and two vacuum pumping devices, the number of the vacuum pumping devices and the number of the vacuum pumps can be selected according to the air pumping or inflating working condition of the air chamber, and the setting is more flexible.
Furthermore, the second control module comprises two second control pipes, and a ninth quick coupling, a third normally open valve and a tenth quick coupling are sequentially arranged on the second control pipes. The second control module is used for controlling the connection between the vacuumizing system and the compression system, so that the passage can be ensured when different numbers of vacuumizing devices and compression devices are adopted in the vacuumizing system and the compression system, and the normal use of the recovery device is ensured.
Furthermore, the third control module comprises a third control pipe and a fourth control pipe, wherein an eleventh quick coupling, a first pressure transmitter, a first check valve and a twelfth quick coupling are sequentially arranged on the third control pipe, a thirteenth quick coupling, a second pressure transmitter, a second check valve and a fourteenth quick coupling are sequentially arranged on the fourth control pipe, the third control pipe and the fourth control pipe are both provided with parallel pipes, and parallel valves are arranged on the parallel pipes. The third control module is used for connecting the compression system and the gas storage system and controlling the communication between the compression system and the gas storage system, different numbers of gas storage tanks and compression devices can be arranged according to working conditions, the split type connection meets the requirement of guaranteeing the maximum air charging/exhausting capacity, and the split type connection can be conveniently transported and arranged.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
(1) The contradiction between the working capacity of the equipment and the carrying channel is solved: the gas recovery device adopts a split and separated structure of the main engine and the gas storage tank, and solves the problem that the volume and the weight of the sulfur hexafluoride gas recovery device exceed the transportation limit through a series and parallel operation mode.
(2) Flexible and convenient: each system is composed of a plurality of modules, and each module can be assembled according to actual requirements, so that the pumping/inflating requirements of electrical equipment are met, and the transportation and the connection are convenient.
(3) The engineering investment is saved: because the recovery device adopts a split and can-separated structure, the size and the weight of a single device are reduced, and the requirement on a device transportation channel is reduced, thereby saving the engineering investment caused by the increase of the size of a civil engineering (vertical shaft) caused by the increase of the size and the transportation weight of the transportation channel.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a modular-based combined sulfur hexafluoride gas recovery device according to the present invention;
FIG. 2 is a schematic structural view of the present invention, in which only air in the air chamber is extracted;
FIG. 3 is a schematic view of a sulfur hexafluoride charging/pumping structure using a set of modules according to the present invention;
fig. 4 is a schematic structural view of the sulfur hexafluoride charging/discharging device using two sets of modules.
In the figure, 1-vacuum system; 2-a compression system; 3-a gas storage system; 4-a vacuum pump; 5-a vacuum-pumping device; 6-a first quick coupling; 7-a second quick coupling; 8-a third quick coupling; 9-a compression device; 10-a fourth quick-connect; 11-a fifth quick coupling; 12-gas cylinder group; 13-a gas storage tank; 14-a sixth quick connector; 15-a first normally open valve; 16-a first vacuum pressure gauge; 17-a first control module; 18-a second control module; 19-a third control module; 20-a first control tube; 21-a seventh quick connector; 22-a second normally open valve; 23-a second vacuum pressure gauge; 24-an eighth quick connector; 25-a ninth quick connector; 26-a third normally open valve; 27-tenth quick connector; 28-a third control tube; 29-a fourth control tube; 30-an eleventh quick connector; 31-a first pressure transmitter; 32-a first check valve; 33-twelfth quick-connect; 34-a thirteenth quick coupling; 35-a second pressure transmitter; 36-control manifold; 37-a second check valve; 38-a fourteenth quick connector; 39-a second control tube; 40-parallel valves.
Detailed Description
As shown in fig. 1, be the utility model relates to a modular combination formula sulfur hexafluoride gas recovery unit based on modularization, including evacuation system 1, compression system 2, gas storage system 3 and control system, evacuation system 1 is used for the evacuation of air chamber, and compression system 2 is used for compressed gas, and control system is connected with evacuation system 1, compression system 2 and gas storage system 3 in order to control the connection and the isolation between evacuation system 1, compression system 2 and the gas storage system 3. The sulfur hexafluoride gas recovery device is formed by connecting four systems, the systems are mutually independent and are connected by metal hoses, on one hand, the systems can be assembled and spliced according to the use requirements of air chambers, the sulfur hexafluoride gas recovery device is flexible to use and convenient to transport, the contradiction between the working capacity of equipment and a carrying channel is solved, on the other hand, the recovery device adopts a split structure and a pot-divided structure, the size and the weight of single equipment are reduced, the requirement on the equipment carrying channel is reduced, and therefore the engineering investment caused by the size increase of civil engineering (vertical shaft) caused by the size increase of the carrying channel and the increase of the carrying weight is saved.
The vacuumizing system 1 comprises a vacuum pump 4 and a vacuumizing device 5, wherein the vacuum pump 4 is provided with a first quick coupling 6, and the vacuumizing device 5 is provided with a second quick coupling 7 and a third quick coupling 8. Vacuum pump 4 and evacuating device 5 all are used for the vacuum to extract the air chamber, and vacuum pump 4's first quick-operation joint 6 is used for the high-speed joint with the air chamber, and evacuating device 5 sets up second quick-operation joint 7 and third quick-operation joint 8 and is arranged in storing in the gas suction gas storage system 3 with the gas in the air chamber.
The compression system 2 comprises a compression device 9, the compression device 9 being provided with a fourth quick coupling 10 and a fifth quick coupling 11. The compression device 9 is used for compressing gas, and the fourth quick coupling 10 and the fifth quick coupling 11 facilitate connection between the compression device 9 and other systems.
The gas storage system 3 comprises a gas cylinder group 12 and a gas storage tank 13, wherein the gas cylinder group 12 and the gas storage tank 13 are respectively provided with a sixth quick coupling 14, a first normally open valve 15 and a first vacuum pressure gauge 16. The gas cylinder group 12 and the gas cylinder 13 are used for gas storage and gas supply of the gas chamber, and the first vacuum pressure gauge 16 is used for displaying gas pressure, so that sulfur hexafluoride gas can be conveniently recovered and filled, and the operation safety is ensured.
The control system comprises a first control module 17, a second control module 18 and a third control module 19, the first control module 17 is arranged between the air chamber and the vacuumizing system 1 and used for controlling the communication between the air chamber and the vacuumizing system 1, the second control module 18 is arranged between the vacuumizing system 1 and the compression system 2 and used for controlling the communication between the vacuumizing system 1 and the compression system 2, and the third control module 19 is arranged between the compression system 2 and the air storage system 3 and used for controlling the communication between the compression system 2 and the air storage system 3. The control system is not only used for communicating the vacuum pumping system 1, the compression system 2 and the gas storage system 3, but also can change the number of the connecting systems according to the use requirements so as to achieve the simplest assembly, ensure that the recovery device can stably operate, and facilitate the transfer and transportation of the modules.
The first control module 17 comprises three first control tubes 20, a seventh quick coupling 21, a second normally open valve 22, a second vacuum pressure gauge 23 and an eighth quick coupling 24 are sequentially arranged on the first control tubes 20, and a communicating pipe is arranged between every two adjacent first control tubes 20. The first control module 17 is used for controlling the communication between the vacuum pumping system 1 and the air chamber, the three first control pipes 20 can be connected with one vacuum pump 4 and two vacuum pumping devices 5, the number of the vacuum pumping devices 5 and the number of the vacuum pumps 4 can be selected according to the air chamber pumping or inflating working condition, and the setting is more flexible.
The second control module 18 comprises two second control tubes 39, and the ninth quick coupling 25, the third normally open valve 26 and the tenth quick coupling 27 are sequentially arranged on the second control tubes 39. The second control module 18 is used for controlling the connection between the vacuum-pumping system 1 and the compression system 2, so as to ensure that the passage can be ensured when different numbers of vacuum-pumping devices 5 and compression devices 9 are adopted in the vacuum-pumping system 1 and the compression system 2, thereby ensuring the normal use of the recovery device.
The third control module 19 comprises a third control pipe 28 and a fourth control pipe 29, wherein an eleventh quick coupling 30, a first pressure transmitter 31, a first check valve 32 and a twelfth quick coupling 33 are sequentially arranged on the third control pipe 28, a thirteenth quick coupling 34, a second pressure transmitter 35, a second check valve 37 and a fourteenth quick coupling 38 are sequentially arranged on the fourth control pipe 29, parallel pipes are arranged on the third control pipe 28 and the fourth control pipe 29, and parallel valves 40 are arranged on the parallel pipes. The fourth control line 29 comprises two control branch lines 36. The third control module 19 is used for connecting the compression system 2 and the gas storage system 3 and controlling the communication between the two, and can set up different quantities of gas storage tanks 13 and compression devices 9 according to the working condition, and the split type connection guarantees the requirement of the maximum air charging/exhausting capacity, and can be conveniently transported and arranged.
The specific operation flow of the combined sulfur hexafluoride gas recovery device is as follows:
as shown in fig. 2, a specific operation flow for evacuating the air chamber of the electrical device to a vacuum state is as follows:
first, the first control module 17 and the vacuum pump 4 are transported to the electric equipment air chamber maintenance platform layer to be maintained through the shaft elevator.
Then, the quick connectors on the air chamber of the electrical equipment are respectively connected with the seventh quick connector 21 in the first control module 17 through metal hoses, the eighth quick connector 24 in the first control module 17 is connected with the first quick connector 6 on the vacuum pump 4 through metal hoses, the second normally open valve 22 is opened, the vacuum pump 4 is started to pump out natural air in the air chamber of the electrical equipment, the second normally open valve 22 is closed after the second vacuum pressure gauge 23 monitors that the vacuum degree in the equipment reaches a set value, and the vacuum pump 4 is separated from the air chamber of the electrical equipment, so that the air chamber is completely vacuumized.
As shown in fig. 3 and 4, B, the operation of filling the sulfur hexafluoride gas in the gas storage tank 13 of the gas storage system 3 into the gas chamber of the electrical equipment includes the following specific operation processes:
first, the sixth quick coupling 14 of the air storage tank 13 is connected with the fourteenth quick coupling 38 and the thirteenth quick coupling 34 of the third control module 19 through metal hoses, the eleventh quick coupling 30 of the third control module 19 is connected with the fifth quick coupling 11 of the compression system 2 through metal hoses, and the fourth quick coupling 10 of the compression system 2 is connected with the tenth quick coupling 27 of the second control module 18 through metal hoses.
Then, the ninth quick coupling 25 of the second control module 18 is connected to the third quick coupling 8 of the vacuum pumping system 1 through a metal hose, and the second quick coupling 7 of the vacuum pumping device 5 is connected to the air chamber through a metal hose.
Then, when sulfur hexafluoride gas is filled in the gas chamber, the first normally open valve 15, the second normally open valve 22 and the third normally open valve 26 are opened, the split type device is combined into a whole, the pressure value is displayed by means of elements such as a vacuum pressure gauge, a pressure transmitter and the like arranged on a pipeline, and the operation equipment is started or stopped and operated.
Finally, during filling, because the check valve is in a closed state in a reverse flow state, the valve connected in parallel with the check valve is opened, and the equipment such as the air storage tank 13, the air chamber and the like is communicated. And when the pressure of the sulfur hexafluoride gas in the gas chamber reaches a set value, closing all the valves to finish filling the gas in the gas chamber.
C. When the sulfur hexafluoride gas recovery device is used for installation or maintenance of electrical equipment (gas chambers), sulfur hexafluoride gas in the gas chambers needs to be recovered, and the specific operation flow is as follows.
The connection steps are basically the same as those of the equipment for filling the sulfur hexafluoride gas into the gas chamber.
Firstly, the movable joints among the modules are connected through metal hoses, valves on other modules are opened except a second normally-open valve 22 and a parallel valve 40 which are connected with a vacuum pump 4, the split gas recovery device is combined into a whole, and elements such as a vacuum pressure gauge, a pressure transmitter and the like which are arranged on a pipeline display pressure values and timely start and stop equipment operation.
Then, the sulfur hexafluoride gas in the gas chamber is pumped and recovered to the gas storage system 3 through the compression device 9 and the vacuum pumping device 5, and during recovery, the check valve behind the compression device 9 is in a working state, and in order to prevent the gas in the gas storage system 3 from flowing backwards, the parallel valve 40 connected in parallel with the check valve needs to be closed.
And finally, when the pressure of each gas storage tank 13 reaches a set value, closing the corresponding module valve, connecting other uninflated gas storage tanks 13, continuously pumping out the sulfur hexafluoride gas in the gas chamber until the content of the sulfur hexafluoride gas in the gas chamber reaches the set value, closing all the valves, and completing the recovery of the sulfur hexafluoride gas in the gas chamber.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
(1) The contradiction between the working capacity of the equipment and the carrying channel is solved: the gas recovery device adopts a split and separated structure of the main engine and the gas storage tank 13, and solves the problem that the volume and the weight of the sulfur hexafluoride gas recovery device exceed the transportation limit through a series and parallel operation mode.
(2) Flexible and convenient: each system is composed of a plurality of modules, and each module can be assembled according to actual requirements, so that the pumping/inflating requirements of electrical equipment are met, and the transportation and the connection are convenient.
(3) The engineering investment is saved: because the recovery device adopts a split and can-separated structure, the size and the weight of a single device are reduced, and the requirement on a device transportation channel is reduced, thereby saving the engineering investment caused by the increase of the size of a civil engineering (vertical shaft) caused by the increase of the size and the transportation weight of the transportation channel.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the scope of the present invention.
Claims (9)
1. The utility model provides a modular sulfur hexafluoride gas recovery device which is characterized in that: the air storage system comprises a vacuumizing system, a compression system, an air storage system and a control system, wherein the vacuumizing system is used for vacuumizing an air chamber, the compression system is used for compressing air, and the control system is connected with the vacuumizing system, the compression system and the air storage system so as to control the connection and isolation among the vacuumizing system, the compression system and the air storage system.
2. The modular based combined sulfur hexafluoride gas recovery device of claim 1, wherein: the vacuum pumping system comprises a vacuum pump and a vacuum pumping device, the vacuum pump is provided with a first quick coupling, and the vacuum pumping device is provided with a second quick coupling and a third quick coupling.
3. The modular based combined sulfur hexafluoride gas recovery device of claim 1, wherein: the compression system comprises a compression device, and the compression device is provided with a fourth quick coupling and a fifth quick coupling.
4. The modular based combined sulfur hexafluoride gas recovery device of claim 1, wherein: the gas storage system comprises a gas cylinder group and a gas storage tank, wherein the gas cylinder group and the gas storage tank are respectively provided with a sixth quick coupling, a first normally open valve and a first vacuum pressure gauge.
5. The modular based combined sulfur hexafluoride gas recovery device of claim 1, wherein: the control system comprises a first control module, a second control module and a third control module, the first control module is arranged in an air chamber and is used for controlling the air chamber and communicating and isolating between the vacuumizing systems, the second control module is arranged in the vacuumizing system and is used for controlling between the compressing systems, the vacuumizing system and the communicating and isolating between the compressing systems, and the third control module is arranged in the compressing system and is used for controlling between the air storing systems, the compressing system and the communicating and isolating between the air storing systems.
6. The modular based combined sulfur hexafluoride gas recovery device of claim 5, wherein: the first control module comprises three first control tubes, a seventh quick coupling, a second normally-open valve, a second vacuum pressure gauge and an eighth quick coupling are sequentially arranged on the first control tubes, and a communicating pipe is arranged between every two adjacent first control tubes.
7. The modular based combined sulfur hexafluoride gas recovery device of claim 5, wherein: the second control module comprises two second control pipes, and a ninth quick coupling, a third normally open valve and a tenth quick coupling are sequentially arranged on the second control pipes.
8. The modular based combined sulfur hexafluoride gas recovery device of claim 5, wherein: the third control module comprises a third control pipe and a fourth control pipe, wherein an eleventh quick joint, a first pressure transmitter, a first check valve and a twelfth quick joint are sequentially arranged on the third control pipe, and a thirteenth quick joint, a second pressure transmitter, a second check valve and a fourteenth quick joint are sequentially arranged on the fourth control pipe.
9. The modular based modular sulfur hexafluoride gas recovery device of claim 8, further comprising: and the third control pipe and the fourth control pipe are both provided with parallel pipes, and parallel valves are arranged on the parallel pipes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220428835.7U CN217584045U (en) | 2022-03-01 | 2022-03-01 | Modular sulfur hexafluoride gas recovery device |
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| CN202220428835.7U CN217584045U (en) | 2022-03-01 | 2022-03-01 | Modular sulfur hexafluoride gas recovery device |
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