CN217035152U - Be used for passive containment refrigerated charge system device - Google Patents
Be used for passive containment refrigerated charge system device Download PDFInfo
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- CN217035152U CN217035152U CN202122414435.9U CN202122414435U CN217035152U CN 217035152 U CN217035152 U CN 217035152U CN 202122414435 U CN202122414435 U CN 202122414435U CN 217035152 U CN217035152 U CN 217035152U
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Abstract
The utility model provides a dosing system device for cooling a passive containment, which comprises a circulating unit and a dosing storage tank, wherein the circulating unit comprises a medicine mixing box, a liquid outlet pipeline is arranged at the bottom of the dosing storage tank, one end, far away from the dosing storage tank, of the liquid outlet pipeline is connected with the medicine mixing box, medicines in the dosing storage tank are conveyed into the medicine mixing box, a cover plate is arranged at the top of the dosing storage tank, and the cover plate comprises at least two plates which are movably connected. The utility model can reduce the system operation intensity, reduce the labor burden of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
Description
Technical Field
The utility model belongs to the technical field of containment cooling of nuclear power plants, and relates to a dosing system device for passive containment cooling.
Background
Nuclear power plants such as AP1000, CAP1400 and the like are all provided with passive containment cooling systems, and thousands of tons of demineralized water are stored in passive containment cooling water tanks throughout the year, so that an additive in the demineralized water is required to control the growth of organisms in the water tanks. The passive containment cooling system of the nuclear power plant needs about 1-2 months to execute once dosing operation, a dosing tank needs to be opened for dosing and circulating for many times, when the dosing tank is higher in position, personnel are difficult to approach, dosing is inconvenient, and the problems of large dosing operation amount, long period, heavy personnel burden and the like exist.
CN213202411U discloses a movable dosing device of a passive containment cooling water tank, which comprises a movable base and a dosing tank, wherein the dosing tank is arranged on the movable base and comprises a dosing port of the dosing tank and a dosing outlet of the dosing tank; the dosing pump is connected with the dosing pump driving motor and comprises a dosing pump inlet and a dosing pump outlet; one pipe orifice of the medicine delivery pipeline is connected with the medicine outlet of the medicine feeding tank, and the other pipe orifice of the medicine delivery pipeline is connected with the inlet of the medicine feeding pump; one pipe orifice of the medicine feeding pipeline is connected with the outlet of the medicine feeding pump, and the other pipe orifice of the medicine feeding pipeline is detachably connected with the stainless steel pipe hose; the medicine feeding tank outlet isolation valve is arranged at one end of the medicine conveying pipeline close to the medicine feeding tank outlet; the dosing pump inlet isolation valve is arranged at one end, close to the dosing pump inlet, of the medicine conveying pipeline; and the medicine feeding pump outlet isolating valve is arranged at one end of the medicine feeding pipeline close to the medicine feeding pump outlet.
CN212774245U discloses a novel medicament filling sledge, which includes a medicament storage tank, a medicament feeding pump, a pressure-monitored delivery pipeline and a flow distributor, which are integrally mounted on a sledge base; the medicament storage tank is provided with a medicament feeding port and a breather valve and is used for receiving and storing medicament; the inlet of the dosing pump is connected with the outlet of the medicament storage tank, and the outlet of the dosing pump is connected with the flow distributor through the conveying pipeline; a one-stage or multi-stage return pipeline system connected with the medicament storage tank in a return mode is arranged on the conveying pipeline, so that part of liquid in the conveying pipeline can return to the medicament storage tank through the return pipeline system; the flow distributor has more than one user point that can be filled simultaneously.
CN107875925A discloses a dosing device, which comprises a medicine mixing barrel and a dosing pipeline system, wherein a cover plate is arranged at the top of the medicine mixing barrel, a stirring motor is arranged in the center of the cover plate, the stirring motor is connected with a stirring shaft, the tail end of the stirring shaft is connected with a stirring device, the bottom of the medicine mixing barrel is communicated with a medicine outlet pipe, and the medicine outlet pipe is connected with a valve; the medicine adding pipeline system comprises a medicine inlet pipe, an air inlet pipe is connected to the medicine inlet pipe through a first tee joint, the lower reaches of the air inlet pipe are connected with a pressure balancing device through a second tee joint, the lower reaches of the pressure balancing device are provided with a third tee joint, an outlet of the third tee joint is connected to a cover plate through a pipeline, a safety valve is connected to a pipe section between the second tee joint and a medicine mixing barrel, another outlet of the third tee joint is connected with a metering pump, and the lower reaches of the metering pump are communicated with the bottom of the medicine mixing barrel.
Based on the problems of large operation amount, heavy workload of workers, long period and the like in the dosing process, how to improve a dosing system device and how to reduce the workload are always the direction of important attention.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the dosing system device for cooling the passive containment, which can reduce the operation intensity of the system, reduce the labor load of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a dosing system device for cooling a passive containment, which comprises a circulating unit and a dosing storage tank, wherein the circulating unit comprises a dosing tank, the bottom of the dosing storage tank is provided with a liquid outlet pipeline, one end of the liquid outlet pipeline, which is far away from the dosing storage tank, is connected with the dosing tank, and is used for conveying a medicament in the dosing storage tank into the dosing tank, the top of the dosing storage tank is provided with a cover plate, and the cover plate comprises at least two plates which are movably connected.
The dosing system device for cooling the passive containment vessel provided by the utility model can reduce the operation intensity of the system, reduce the labor load of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
It should be noted that, the present invention is not specifically limited or specifically required for the devices, structures, or equipment in the circulation unit in the passive containment cooling, and the circulation unit further includes, for example, a cooling water tank, a plurality of valves, a circulation pump, a medicine mixing tank, and other equipment, wherein the medicine in the medicine mixing tank is injected into the cooling water tank under the combined action of the circulation pump and the plurality of valves, and according to the actual working conditions, the concentration of the medicine in the cooling water tank needs to be stabilized at a concentration of 50 ± 20ppm, and further the growth of organisms in the cooling water tank is controlled, so that the medicine adding operation is performed about 1 to 2 months. It is of course understood that other devices for passive containment cooling are equally within the scope and disclosure of the present invention, and thus other devices that are disclosed in the prior art or not disclosed in the new art may equally be used in the present invention.
It should be noted that, the movable connection form of the top cover plate of the dosing storage tank is not particularly limited or required, and for example, the design of at least two plates connected by a hinge can be adopted, so that the opening and the closing are facilitated, and the addition of the medicament into the dosing storage tank is facilitated.
As a preferable technical scheme of the utility model, a first valve, a metering pump, a second valve, a flowmeter and a check valve are sequentially arranged on the liquid outlet pipeline along the flow direction of the medicament, and the check valve is positioned on a pipe section of the liquid outlet pipeline close to the medicament mixing box.
It should be noted that, in the present invention, the check valve is required to be opened, the first valve and the second valve are opened, the metering pump provides kinetic energy for delivering the chemical, the chemical is delivered into the chemical mixing tank from the chemical adding storage tank at a proper speed, the flow of the chemical is measured by the flow meter, when the first valve and the second valve are closed, the metering pump can be maintained or replaced so as to maintain normal operation, and after the chemical adding is finished, the check valve is automatically closed.
As a preferable technical scheme, the dosing system device for cooling the passive containment further comprises a numerical control assembly, a liquid level meter is arranged at the top of the cover plate, the liquid level meter and the metering pump are respectively and independently electrically connected with the numerical control assembly, a preset value is arranged in the numerical control assembly, and when the liquid level meter detects that the liquid level in the dosing storage tank is lower than the preset value, the numerical control assembly controls the metering pump to stop running in a feedback mode.
It should be noted that, in the utility model, the preset value is set according to the actual working condition, when the liquid level in the dosing storage tank is reduced below the preset value, the metering pump stops running, and the delivery of the medicament is suspended; when the liquid level in the medicine adding storage tank is lower, the medicine can be continuously added into the medicine adding storage tank manually according to the requirement until the medicine adding operation is completed.
As a preferable technical scheme of the utility model, the dosing storage tank is externally connected with a return pipeline, and one end of the return pipeline, which is far away from the dosing storage tank, is connected with a pipe section of the liquid outlet pipeline, which is positioned between the second valve and the flowmeter.
As a preferred technical solution of the present invention, the return pipe is provided with a safety valve.
It should be noted that, when special situations occur, the safety valve is opened, so that the medicament can flow back to the medicament adding storage tank through the return pipeline, and dangers are avoided.
As a preferable technical scheme, the dosing system device for cooling the passive containment further comprises a drain line, and the drain line is connected with the bottom of the dosing storage tank.
As a preferred technical scheme of the utility model, the drain pipeline is provided with a third valve.
When the medicine is added to the circulating unit, the third valve is closed, and the medicine in the medicine adding storage tank flows into the medicine mixing tank through the liquid outlet pipeline; when the first valve is closed, the third valve is opened, and the medicament in the medicament adding storage tank is discharged through a drain pipeline.
In a preferred embodiment of the present invention, the volume of the drug adding tank is 500 to 1500L, for example, 500L, 600L, 700L, 800L, 900L, 1000L, 1100L, 1200L, 1300L, 1400L or 1500L, but the present invention is not limited to the above-mentioned values, and other values not listed in the above-mentioned range are also applicable.
The volume of the mixed medicine box is 15 to 25L, and may be, for example, 15L, 16L, 17L, 18L, 19L, 20L, 21L, 22L, 23L, 24L or 25L, but is not limited to the above-mentioned numerical values, and other numerical values not listed in the numerical value range are also applicable.
As a preferable technical scheme of the utility model, the top elevation of the medicine adding storage tank is lower than the top elevation of the medicine mixing box.
In the utility model, the volume of the medicine adding storage tank is far larger than that of the medicine mixing box, and the elevation of the top of the medicine adding storage tank is also lower than that of the medicine mixing box, so that the medicine adding storage tank is convenient for workers to operate, and the workload of the workers is greatly reduced.
As a preferable technical scheme of the utility model, the medicament in the medicament adding storage tank is hydrogen peroxide, and the medicament mixing tank is filled with liquid.
Thousands of tons of demineralized water are stored in the passive containment cooling water tank all the year round, and if hydrogen peroxide with a certain concentration is added into the demineralized water, the growth of organisms in the water tank can be controlled, so that the damage of equipment can be avoided. During operation of the circulation unit, the mixing tank is filled with a liquid, which may be cooling water, for example. Before adding medicine, emptying liquid in the medicine mixing box, adding medicine, after the medicine is added, filling the medicine mixing box with the liquid, and starting to operate the circulating unit to cool the passive containment.
Exemplary, the application method of the dosing system device for passive containment cooling provided by the present invention is as follows:
the circulating unit continuously operates, an upper cover plate of the dosing storage tank is opened, enough medicament is added into the dosing storage tank, the upper cover plate of the dosing storage tank is closed, then the first valve and the second valve are sequentially opened, the metering pump is opened by closing the third valve, the flow is adjusted to be a proper size according to the indication number of the flow meter, the medicament in the dosing storage tank is continuously pumped into the medicament mixing tank, and the medicament and the water in the medicament mixing tank are mixed and then are conveyed into the cooling water tank by the pump of the circulating unit; the liquid level of the medicament in the medicament adding storage tank is measured by using a liquid level meter, a preset value is set in the numerical control assembly, and when the measured liquid level of the medicament is lower than the preset value, the numerical control assembly controls the metering pump to stop running; and after the dosing is finished, the metering pump stops running, and the check valve is automatically closed. The first valve and the second valve can be closed when needed, and the metering pump is maintained; the third valve is opened to discharge liquid to the medicine adding storage tank.
The system refers to an equipment system, or a production equipment.
Compared with the prior art, the utility model has the beneficial effects that:
the dosing system device for cooling the passive containment vessel provided by the utility model can reduce the operation intensity of the system, reduce the labor load of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
Drawings
Fig. 1 is a schematic structural diagram of a dosing system device for passive containment cooling according to an embodiment of the present invention.
Wherein, 1-adding medicine storage tank; 2-a recycle unit; 3-mixing the pesticide box; 4-a first valve; 5-a metering pump; 6-a second valve; 7-a flow meter; 8-a check valve; 9-a numerical control assembly; 10-a cooling water tank; 11-a third valve; 12-safety valve.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and therefore are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," and "third," etc., may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
In a specific embodiment, the utility model provides a dosing system device for cooling a passive containment, which comprises a circulation unit 2 and a dosing storage tank 1, wherein the circulation unit 2 comprises a dosing tank 3, a liquid outlet pipeline is arranged at the bottom of the dosing storage tank 1, one end of the liquid outlet pipeline, which is far away from the dosing storage tank 1, is connected with the dosing tank 3, the medicament in the dosing storage tank 1 is conveyed into the dosing tank 3, a cover plate is arranged at the top of the dosing storage tank 1, and the cover plate comprises at least two plates which are movably connected.
The dosing system device for cooling the passive containment vessel provided by the utility model can reduce the operation intensity of the system, reduce the labor load of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
The circulating unit 2 may further include a cooling water tank 10, a plurality of valves, a circulating pump, a medicine mixing tank 3, and other devices, wherein the medicine in the medicine mixing tank 3 is injected into the cooling water tank 10 under the combined action of the circulating pump and the plurality of valves, and according to the actual working conditions, the concentration of the medicine in the cooling water tank 10 needs to be stabilized at 50 ± 20ppm, so as to control the growth of organisms in the water tank, and thus, the medicine adding operation needs to be performed about 1-2 months. The cover plate at the top of the dosing storage tank 1 adopts the design of at least two plates connected by a hinge, so that the opening and the closing are facilitated, and the medicine is conveniently added into the dosing storage tank 1.
Furthermore, a first valve 4, a metering pump 5, a second valve 6, a flow meter 7 and a check valve 8 are sequentially arranged on the liquid outlet pipeline along the flow direction of the medicament, and the check valve 8 is positioned on the section of the liquid outlet pipeline close to the medicament mixing box 3.
According to the utility model, during dosing, the check valve 8 needs to be opened, the first valve 4 and the second valve 6 need to be opened, the metering pump 5 provides kinetic energy for delivering the medicament, the medicament is delivered into the medicament mixing box 3 from the dosing storage tank 1 at a proper speed, the flow of the medicament is measured by the flowmeter 7, when the first valve 4 and the second valve 6 are closed, the metering pump 5 can be maintained or replaced so as to maintain normal work, and after dosing is finished, the check valve 8 is closed.
Further, the dosing system device for cooling the passive containment further comprises a numerical control assembly 9, a liquid level meter is arranged at the top of the cover plate, the liquid level meter and the metering pump 5 are respectively and independently electrically connected with the numerical control assembly 9, a preset value is arranged in the numerical control assembly 9, and when the liquid level meter detects that the liquid level in the dosing storage tank 1 is lower than the preset value, the numerical control assembly 9 controls the metering pump 5 to stop running in a feedback mode.
According to the utility model, the preset value is set according to the actual working condition, when the liquid level in the dosing storage tank 1 is reduced below the preset value, the metering pump 5 stops operating, and the delivery of the medicament is suspended; when the liquid level in the medicine adding storage tank 1 is lower, the medicine can be continuously added into the medicine adding storage tank 1 manually according to the requirement until the medicine adding operation is completed.
Furthermore, the dosing storage tank 1 is externally connected with a return pipeline, and one end of the return pipeline, which is far away from the dosing storage tank 1, is connected to a pipe section of the liquid outlet pipeline, which is located between the second valve 6 and the flowmeter 7.
Further, a safety valve 12 is provided on the return line.
Further, the dosing system device for cooling the passive containment further comprises a drain pipeline, and the drain pipeline is connected with the bottom of the dosing storage tank 1.
Further, a third valve 11 is provided on the drain line. When medicine is added to the circulation unit 2, the third valve 11 is closed, and the medicine in the medicine adding storage tank 1 flows into the medicine mixing tank 3 through the liquid outlet pipeline; when the first valve 4 is closed and the third valve 11 is opened, the medicine in the medicine adding storage tank 1 is discharged through a drain pipeline.
Further, the volume of the medicine adding storage tank 1 is 500-1500L, and the volume of the medicine mixing box 3 is 15-25L.
Further, the top elevation of the medicine adding storage tank 1 is lower than the top elevation of the medicine mixing tank 3. According to the utility model, the volume of the medicine adding storage tank 1 is far larger than that of the medicine mixing box 3, and the elevation of the top of the medicine adding storage tank is also lower than that of the medicine mixing box 3, so that the operation of workers is facilitated, and the work load of the operators is greatly reduced.
Furthermore, the medicament in the medicament adding storage tank 1 is hydrogen peroxide, and the medicament mixing tank 3 is filled with liquid.
Examples1
The present embodiment provides a chemical adding system device for cooling a passive containment, as shown in fig. 1, the chemical adding system device includes a circulation unit 2 and a chemical adding storage tank 1, where the circulation unit 2 includes a chemical mixing tank 3 filled with water, the chemical adding storage tank 1 is a cylindrical barrel, a volume of the chemical adding storage tank 1 is 1000L, a volume of the chemical mixing tank 3 is 18L, an elevation of a top of the chemical adding storage tank 1 is 1.50m, and an elevation of a top of the chemical mixing tank 3 is 3.50 m. The medicament that adds in the medicine storage tank 1 is hydrogen peroxide, and the bottom of adding medicine storage tank 1 is equipped with out the liquid pipeline, and the liquid pipeline is kept away from the one end of adding medicine storage tank 1 and is connected and mix medical kit 3, will add the hydrogen peroxide of medicine storage tank 1 and carry to mixing in the medical kit 3, and the top of adding medicine storage tank 1 is equipped with the apron, and the apron includes two semicircular plates of hinged joint.
The liquid outlet pipeline is sequentially provided with a first valve 4, a metering pump 5, a second valve 6, a flowmeter 7 and a check valve 8 along the flow direction of the hydrogen peroxide. The dosing storage tank 1 is externally connected with a return pipeline, one end of the return pipeline, which is far away from the dosing storage tank 1, is connected with a pipe section of the liquid outlet pipeline, which is positioned between the second valve 6 and the flowmeter 7, and the return pipeline is provided with a safety valve 12.
The dosing system device for cooling the passive containment further comprises a numerical control assembly 9, a liquid level meter is arranged at the top of the cover plate, the liquid level meter and the metering pump 5 are respectively and independently and electrically connected with the numerical control assembly 9, a preset value is arranged in the numerical control assembly 9, and when the liquid level meter detects that the liquid level in the dosing storage tank 1 is lower than the preset value, the numerical control assembly 9 controls the metering pump 5 to stop running in a feedback mode.
The dosing system device for cooling the passive containment further comprises a drain pipeline, the drain pipeline is connected with the bottom of the dosing storage tank 1, a third valve 11 is arranged on the drain pipeline, when dosing is performed on the circulating unit 2, the third valve 11 is closed, and the medicine in the dosing storage tank 1 flows into the medicine mixing tank 3 through a liquid outlet pipeline; when the first valve 4 is closed and the third valve 11 is opened, the medicine in the medicine adding storage tank 1 is discharged through a drain pipeline.
Application example1
In the application example, the chemical adding system device for cooling the passive containment vessel provided in embodiment 1 is used for adding chemicals to a cooling process of the passive containment vessel of the nuclear power plant, and the chemical adding process comprises the following steps:
the circulation unit 2 continuously operates, an upper cover plate of the dosing storage tank 1 is opened, sufficient hydrogen peroxide is added into the dosing storage tank 1, the upper cover plate of the dosing storage tank 1 is closed, then the first valve 4 and the second valve 6 are sequentially opened, the metering pump 5 is started, the flow is adjusted to 4L/min according to the reading number of the flow meter 7, the medicament in the dosing storage tank 1 is continuously pumped into the medicament mixing tank 3, and the medicament and water in the medicament mixing tank 3 are mixed and then are pumped into the cooling water tank 10 by the circulation unit 2; measuring the liquid level of the hydrogen peroxide in the dosing storage tank 1 by using a liquid level meter, setting a preset value in the numerical control assembly 9, wherein the preset value is 0.5 +/-0.05 m, and controlling the metering pump 5 to stop running by using the numerical control assembly 9 when the measured liquid level of the medicament is lower than the value; after the dosing is finished, the metering pump 5 stops running, and the check valve 8 is automatically closed. And closing the first valve 4 and the second valve 6, maintaining the metering pump 5, and opening the third valve 11 to discharge liquid to the dosing storage tank 1.
The dosing system device for cooling the passive containment vessel provided by the utility model can reduce the operation intensity of the system, reduce the labor load of workers, shorten the dosing period, improve the working efficiency and have higher safety and stability.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein fall within the scope and disclosure of the present invention.
Claims (10)
1. The dosing system device for cooling the passive containment is characterized by comprising a circulating unit and a dosing storage tank, wherein the circulating unit comprises a dosing tank, a liquid outlet pipeline is arranged at the bottom of the dosing storage tank, one end, far away from the dosing storage tank, of the liquid outlet pipeline is connected with the dosing tank, a medicament in the dosing storage tank is conveyed into the dosing tank, a cover plate is arranged at the top of the dosing storage tank, and the cover plate comprises at least two plates which are movably connected.
2. The dosing system device for passive containment cooling according to claim 1, wherein a first valve, a metering pump, a second valve, a flow meter and a check valve are sequentially arranged on the liquid outlet pipeline along the flow direction of the medicament, and the check valve is located in a pipe section of the liquid outlet pipeline, which is close to the mixing box.
3. The dosing system device for passive containment cooling as recited in claim 2, further comprising a numerical control assembly, wherein a level gauge is disposed on a top of the cover plate, the level gauge and the metering pump are electrically connected to the numerical control assembly independently, a preset value is set in the numerical control assembly, and when the level gauge detects that a liquid level in the dosing storage tank is lower than the preset value, the numerical control assembly controls the metering pump to stop operating in a feedback manner.
4. The dosing system device for passive containment cooling of claim 2, wherein the dosing storage tank is externally connected with a return line, and one end of the return line, which is far away from the dosing storage tank, is connected to a pipe section of the liquid outlet line, which is located between the second valve and the flow meter.
5. The dosing system device for passive containment cooling of claim 4, wherein a safety valve is disposed on the return line.
6. The dosing system device for passive containment cooling as claimed in claim 1 further comprising a hydrophobic line connected to the bottom of the dosing tank.
7. The dosing system device for passive containment cooling of claim 6, wherein a third valve is disposed on the drain line.
8. The chemical adding system device for cooling the passive containment vessel as claimed in claim 1, wherein the chemical adding storage tank has a volume of 500-1500L, and the chemical mixing tank has a volume of 15-25L.
9. The addition system apparatus for passive containment cooling of claim 1, wherein a top elevation of the addition storage tank is lower than a top elevation of the mixing tank.
10. The dosing system device for passive containment cooling of claim 1, wherein the medicament in the dosing storage tank is hydrogen peroxide and the mixing tank is filled with a liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414435.9U CN217035152U (en) | 2021-10-08 | 2021-10-08 | Be used for passive containment refrigerated charge system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414435.9U CN217035152U (en) | 2021-10-08 | 2021-10-08 | Be used for passive containment refrigerated charge system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035152U true CN217035152U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122414435.9U Active CN217035152U (en) | 2021-10-08 | 2021-10-08 | Be used for passive containment refrigerated charge system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035152U (en) |
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2021
- 2021-10-08 CN CN202122414435.9U patent/CN217035152U/en active Active
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