CN217208915U - Combined device for controlling atmosphere switching - Google Patents
Combined device for controlling atmosphere switching Download PDFInfo
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- CN217208915U CN217208915U CN202221181981.0U CN202221181981U CN217208915U CN 217208915 U CN217208915 U CN 217208915U CN 202221181981 U CN202221181981 U CN 202221181981U CN 217208915 U CN217208915 U CN 217208915U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model provides a composite set that control atmosphere switches belongs to high temperature gas cooled and piles fuel handling system technical field. Wherein, the utility model discloses a composite set that control atmosphere switches includes: the gas temporary storage device, the switch assembly and the medium isolation assembly; the switch assembly is arranged on an air path of the gas temporary storage device, and the medium isolation assembly is arranged on one side of the switch assembly facing to the gas flowing direction so as to prevent the medium from flowing in the opposite direction when the gas temporary storage device switches the atmosphere. The utility model discloses be provided with the medium isolation subassembly in one side of switch module orientation gas direction to prevent that gaseous temporary storage device from aerifing and when exhausting, avoiding the uncontrollable device of releasing the low pressure medium of high pressure medium in, solved the unable problem of keeping apart the medium of present switch module, can effectively promote system's operational safety.
Description
Technical Field
The utility model belongs to the technical field of high temperature gas cooled reactor fuel handling system, concretely relates to composite set that control atmosphere switches.
Background
Presently, HTR-PM fuel handling systems employ distributed direct acting solenoid valves of the type HZB1GG-25 HX. When the power is off, the electromagnetic valve is closed to block the medium from flowing, and when the power is on, the electromagnetic valve is opened to circulate the medium in the pipeline. However, because the electromagnetic valve of this type cannot bear pressure in the reverse direction, that is, when the downstream pressure of the electromagnetic valve is higher than the upstream pressure, the electromagnetic valve cannot play a role of isolating gas in a closed state, when the gas temporary storage device switches the atmosphere, the high-pressure medium may be uncontrollably released into the low-pressure device, thereby bringing about a potential safety hazard to the system operation.
Therefore, the utility model provides a composite set that control atmosphere switches to prevent gaseous temporary storage device when aerifing and exhausting, gaseous uncontrollable emission.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide a composite set that control atmosphere switches.
The utility model provides a composite set that control atmosphere switches, include: the gas temporary storage device, the switch assembly and the medium isolation assembly; wherein the content of the first and second substances,
the switch assembly is arranged on the gas path of the gas temporary storage device, and the medium isolation assembly is arranged on one side of the switch assembly facing to the gas flow direction so as to prevent the medium from flowing in the opposite direction when the gas temporary storage device switches the atmosphere.
Optionally, the switch assembly includes an air inlet switch element and an air outlet switch element, and the medium isolation assembly includes an air inlet medium isolation element and an air outlet medium isolation element; wherein the content of the first and second substances,
the air inlet switch piece and the air outlet switch piece are respectively arranged on an air inlet path and an air outlet path of the gas temporary storage device;
the air inlet medium isolating piece is arranged on one side, facing the air outlet switch piece, of the air inlet switch piece, and the air outlet medium isolating piece is arranged on one side, facing away from the air inlet switch piece, of the air outlet switch piece.
Optionally, the air inlet medium isolator and the air outlet medium isolator both have a high-pressure end and a low-pressure end, so as to switch opening and closing of the air inlet medium isolator and/or the air outlet medium isolator according to air pressures of the low-pressure end and the high-pressure end.
Optionally, when the gas inflow side of the gas inlet medium partition and/or the gas outlet medium partition is a high-pressure end and the gas outflow side is a low-pressure end, the gas inlet medium partition and/or the gas outlet medium partition is opened;
when the gas inflow side of the gas inlet medium isolating piece and/or the gas outflow side of the gas outlet medium isolating piece is a low-pressure end and the gas outflow side of the gas inlet medium isolating piece and/or the gas outflow side of the gas outlet medium isolating piece is a high-pressure end, the gas inlet medium isolating piece and/or the gas outflow medium isolating piece are/is closed.
Optionally, the air inlet medium separator and the air outlet medium separator both adopt check valves.
Optionally, the air inlet switch piece and the air outlet switch piece both adopt electromagnetic valves.
Optionally, the working pressure of the medium isolation assembly is greater than the working pressure of the gas temporary storage device.
Optionally, the gas buffer comprises a charging buffer and/or a discharging buffer.
Optionally, the device further comprises a gas collection header, and the gas collection header is connected with the gas temporary storage device through the switch assembly and the medium isolation assembly.
Optionally, the device further comprises a cooler, and the cooler is arranged between the gas temporary storage device and the gas collection header.
The utility model provides a composite set that control atmosphere switches, include: the gas temporary storage device, the switch assembly and the medium isolation assembly; the switch assembly is arranged on an air path of the gas temporary storage device, and the medium isolation assembly is arranged on one side of the switch assembly facing to the gas flowing direction so as to prevent the medium from flowing in the opposite direction. The utility model discloses be provided with the medium isolation subassembly in one side of switch module orientation gas direction to prevent that gaseous temporary storage device from aerifing and when exhausting, avoiding the uncontrollable device of releasing the low pressure medium of high pressure medium in, solved the unable problem of keeping apart the medium of present switch module, can effectively promote system's operational safety.
Drawings
Fig. 1 is a schematic structural diagram of a combination device for controlling atmosphere switching according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Unless otherwise specifically stated, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the present invention belongs. As used in this application, the terms "comprises" or "comprising," or the like, do not specify the presence of stated shapes, numbers, steps, acts, operations, elements, components, and/or groups thereof, nor do they preclude the presence or addition of one or more other different shapes, numbers, steps, acts, operations, elements, components, and/or groups thereof. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number and order of the technical features indicated.
In some descriptions of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," or "fixed" and the like are not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect through an intermediate medium, communication between two elements, or interaction between two elements. Also, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate an orientation or positional relationship based on that shown in the drawings, and are used only to indicate a relative positional relationship, which may also be changed accordingly when the absolute position of the object being described is changed.
The utility model provides a composite set that control atmosphere switches, include: the gas temporary storage device, the switch assembly and the medium isolation assembly; the gas temporary storage device comprises a gas circuit, a switch assembly, a medium isolation assembly and a gas storage device, wherein the switch assembly is arranged on the gas circuit of the gas temporary storage device, and the medium isolation assembly is arranged on one side, facing the gas flowing direction, of the switch assembly so as to prevent a medium from flowing in the opposite direction when the gas temporary storage device switches the atmosphere. That is, a media isolation assembly is provided downstream of the switching assembly to prevent gaseous media from entering the low pressure side gas buffer when the gas buffer switches atmospheres (e.g., charges or discharges) to prevent the downstream pressure of the switching assembly from being higher than the upstream pressure.
This embodiment is provided with medium isolation assembly through the one side at switch module orientation gas direction to prevent that gaseous temporary storage device from aerifing and when exhausting, avoiding the uncontrollable device of releasing to the low pressure medium of high pressure medium in, solved the unable problem of keeping apart the medium of switch modules such as present solenoid valve, can effectively promote system's operation security.
Specifically, as shown in fig. 1, the switch assembly includes an air inlet switch 111 and an air outlet switch 112, and the dielectric isolation assembly includes an air inlet dielectric isolator 121 and an air outlet dielectric isolator 122; wherein, the air inlet switch 111 and the air outlet switch 112 are respectively arranged on the air inlet path and the air outlet path of the gas temporary storage device; the inlet dielectric spacer 121 is disposed on a side of the inlet switch member 111 facing the outlet switch member 112, and the outlet dielectric spacer 122 is disposed on a side of the outlet switch member 112 facing away from the inlet switch member 111, i.e., the inlet dielectric spacer or the outlet dielectric spacer is disposed at a downstream position of the inlet switch member and the outlet switch member to prevent the medium from flowing reversely into the inlet switch member or the outlet switch member.
It should be noted that, the inlet dielectric spacer and the outlet dielectric spacer of the present embodiment both have a high-pressure end and a low-pressure end, so as to switch the opening and closing of the inlet dielectric spacer and/or the outlet dielectric spacer according to the air pressures of the low-pressure end and the high-pressure end. That is, the inlet dielectric spacer or the outlet dielectric spacer switches its opening and closing based on the air pressures of both sides.
Specifically, when the gas inflow side of the gas inlet medium spacer is a high-pressure end and the gas outflow side is a low-pressure end, that is, the upstream is high-pressure and the downstream is low-pressure, the gas inlet medium spacer is opened by the difference between the pressures of the two sides, that is, the gas pressure is in a normal state to allow the medium to pass through. When the gas inflow side of the gas inlet medium isolating piece is a low-pressure end and the gas outflow side of the gas inlet medium isolating piece is a high-pressure end, namely the upstream of the gas inlet medium isolating piece is low-pressure and the downstream of the gas inlet medium isolating piece is high-pressure, the gas inlet medium isolating piece is closed by means of the gas pressure difference between the two sides so as to prevent the medium on the downstream high-pressure side from reversely flowing.
It should be understood that when the gas inflow side of the outgoing medium spacer is a high pressure end and the gas outflow side is a low pressure end, i.e. the upstream is high pressure and the downstream is low pressure, the difference of gas pressure between the two sides is relied on to open the outgoing medium spacer, i.e. the gas pressure is in a normal state to allow the medium to pass through. When the gas inflow side of the gas outlet medium isolating piece is a low-pressure end and the gas outflow side is a high-pressure end, namely the upstream is low pressure and the downstream is high pressure, the gas outlet medium isolating piece is closed by depending on the gas pressure difference of the two sides so as to prevent the medium on the downstream high-pressure side from reversely flowing.
Specifically, the air inlet medium isolating piece and the air outlet medium isolating piece can adopt check valves, and the air inlet switch piece and the air outlet switch piece adopt electromagnetic valves.
It should be noted that the working pressure of the medium isolation assembly of the present embodiment needs to be greater than the working pressure of the gas buffer device to prevent the gas buffer device from being damaged.
It should be further noted that, in the present embodiment, the check valve body material is S31603, and the connection pipe parameters are matched with the inlet pipe, and are selected as the material
The working pressure range is 10.4MPa (a) -16MPa (a), of course, the type of the check valve is not limited in particular, and other types of check valves can be selected.
It should also be noted that the gas buffer of this embodiment may include a charge buffer or a discharge buffer, and may also be a helium storage tank of the HTR-PM helium supply and storage system.
As shown in fig. 1, in some embodiments, when the gas buffer is a charging buffer 131 or a discharging buffer 132, the gas inlet medium isolator 121 is disposed between the gas inlet switch 111 and the charging buffer 131 or the discharging buffer 132, and the gas outlet medium isolator 122 is disposed on a side of the gas outlet switch 112 away from the gas inlet switch 111, so that during atmosphere switching, the medium can be effectively prevented from flowing in the opposite direction by the gas inlet medium isolator and the gas outlet medium isolator, so as to prevent medium such as helium or air from entering the low-pressure discharging buffer or the charging buffer, thereby affecting system operation and even causing a safety event.
Illustratively, as shown in fig. 1, the temporary storage device includes two temporary storage devices for charging, which are # 1 temporary storage device for charging and # 2 temporary storage device for charging, an air inlet switch 111 and an air inlet medium spacer 121 are disposed on an air inlet path of each temporary storage device for charging 131, and an air outlet switch 112 and an air outlet medium spacer 122 are disposed on an air outlet path of each temporary storage device for charging 131.
As an example, please refer to fig. 1, which includes two discharging buffers, which are # 1 discharging buffer and # 2 discharging buffer, respectively, an air inlet switch 111 and an air inlet medium separator 121 are disposed on an air inlet path of each discharging buffer 132, and an air outlet switch 112 and an air outlet medium separator 122 are disposed on an air outlet path of each discharging buffer 132.
In other embodiments, the media barrier is effective to prevent backflow of helium gas from an inlet of the helium storage tank when the gas escrow device is a helium storage tank of the HTR-PM helium supply and storage system.
Further, as shown in fig. 1, the apparatus of the present embodiment further includes a gas collecting header 140, and the gas collecting header 140 is connected to the charging temporary storage device 131 and the discharging temporary storage device 132 through a switch assembly and a medium isolating assembly. That is to say, the charging buffer 131 and the discharging buffer 132 are connected to the gas collecting header via a gas outlet line in order to store the media to be switched in the gas collecting header.
Further, as shown in fig. 1, the apparatus of the present embodiment further includes a cooler 150, and the cooler 150 is disposed between the discharge buffer 132 and the gas collecting header 140. Namely, a cooler is arranged on the air outlet path of the temporary discharging storage device to cool the gas medium and prevent the gas medium from being too high in temperature.
The utility model provides a composite set that control atmosphere switches has following beneficial effect: the utility model discloses be provided with medium isolation assembly in one side of switch module orientation gas direction, when switch module low reaches pressure was higher than the upper reaches pressure, under the switch module closed state, when carrying out the atmosphere and switching over, medium isolation assembly can prevent the medium entering low pressure side's of high pressure side gaseous temporary storage device, has solved the problem of the unable isolation medium of switch modules such as present solenoid valve, can effectively promote system's operation security.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A combination for controlling atmosphere switching, comprising: the gas temporary storage device, the switch assembly and the medium isolation assembly are arranged on the gas temporary storage device; wherein the content of the first and second substances,
the switch assembly is arranged on the gas path of the gas temporary storage device, and the medium isolation assembly is arranged on one side of the switch assembly facing to the gas flow direction so as to prevent the medium from flowing in the opposite direction when the gas temporary storage device switches the atmosphere.
2. The apparatus of claim 1, wherein the switch assembly comprises an inlet switch member and an outlet switch member, and the dielectric isolation assembly comprises an inlet dielectric isolator, an outlet dielectric isolator; wherein the content of the first and second substances,
the air inlet switch piece and the air outlet switch piece are respectively arranged on an air inlet path and an air outlet path of the gas temporary storage device;
the air inlet medium isolating piece is arranged on one side, facing the air outlet switch piece, of the air inlet switch piece, and the air outlet medium isolating piece is arranged on one side, facing away from the air inlet switch piece, of the air outlet switch piece.
3. The apparatus of claim 2, wherein the inlet media isolator and the outlet media isolator each have a high pressure end and a low pressure end to switch the inlet media isolator and/or the outlet media isolator open and closed according to the air pressure of the low pressure end and the high pressure end.
4. The apparatus of claim 3, wherein the inlet media barrier and/or the outlet media barrier is open when the gas inflow side of the inlet media barrier and/or the outlet media barrier is a high pressure end and the gas outflow side is a low pressure end;
when the gas inflow side of the gas inlet medium isolating piece and/or the gas outflow side of the gas outlet medium isolating piece is a low-pressure end and the gas outflow side of the gas inlet medium isolating piece and/or the gas outflow side of the gas outlet medium isolating piece is a high-pressure end, the gas inlet medium isolating piece and/or the gas outflow medium isolating piece are/is closed.
5. The apparatus of claim 4, wherein the inlet media separator and the outlet media separator are check valves.
6. The device of claim 2, wherein the air inlet switch member and the air outlet switch member are solenoid valves.
7. An apparatus according to any one of claims 1 to 6, wherein the operating pressure of the media isolation assembly is greater than the operating pressure of the gas buffer.
8. An apparatus according to any one of claims 1 to 6, characterized in that the gas buffer comprises a charging buffer and/or a discharging buffer.
9. The apparatus of any one of claims 1 to 6, further comprising a gas collection header connected to the gas escrow apparatus through the switching assembly and the media isolation assembly.
10. The apparatus of claim 9 further comprising a cooler disposed between the gas staging device and the gas collection header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221181981.0U CN217208915U (en) | 2022-05-17 | 2022-05-17 | Combined device for controlling atmosphere switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221181981.0U CN217208915U (en) | 2022-05-17 | 2022-05-17 | Combined device for controlling atmosphere switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217208915U true CN217208915U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221181981.0U Active CN217208915U (en) | 2022-05-17 | 2022-05-17 | Combined device for controlling atmosphere switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217208915U (en) |
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2022
- 2022-05-17 CN CN202221181981.0U patent/CN217208915U/en active Active
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