CN116336193A - Low temperature regulating valve and low temperature transmission system - Google Patents

Abstract

The application discloses a low temperature governing valve and low temperature transmission system and low temperature governing valve technical field. The low-temperature regulating valve comprises a valve body, a valve core and at least one cold screen; the valve body comprises a valve main body and an extension part, and a flow passage is formed in the valve main body; the valve core is arranged in the valve main body in a sliding way and extends to the extension part so as to control the opening degree of the flow channel; at least one cold screen is sleeved on one side of the valve main body far away from the valve core, and the at least one cold screen is in heat conduction connection with the extension part. The low temperature regulating valve provided by the application can simplify the internal structure and save the space when reducing the heat leakage.

Description

Low temperature regulating valve and low temperature transmission system

Technical Field

The application relates to the technical field of low-temperature regulating valves, in particular to a low-temperature regulating valve and a low-temperature transmission system.

Background

In the fields of medical treatment, scientific research, etc., a low-temperature fluid is generally used as a refrigerant. During use, the cryogenic fluid transfers heat to it in various forms by the external environment, causing a loss of coldness. In cryogenic systems that deliver cryogenic fluids, a cryogenic regulator valve is typically used to control the flow of the cryogenic fluid.

In the transmission low-temperature regulating valve, in order to reduce heat leakage and improve the cooling capacity use efficiency, a heat anchor is usually manufactured in the low-temperature regulating valve to block the influence of external environment. However, a series of accessories such as a cold guide structure are required to be arranged in a matched manner for manufacturing the heat anchor, so that the internal structure of the low-temperature regulating valve is complicated, and the space in the low-temperature regulating valve is wasted.

Disclosure of Invention

The application provides a low temperature control valve and low temperature transmission system, when reducing valve body heat leakage, simplify the holistic structure of low temperature control valve.

The application provides a low temperature regulating valve, include:

the valve body comprises a valve main body and an extension part, and a flow passage is formed in the valve main body;

a valve core slidably disposed in the valve body and extending to the extension portion to control an opening degree of the flow passage;

and the at least one cold screen is sleeved on one side of the valve main body far away from the valve core and is in heat conduction connection with the extension part.

Based on the technical scheme, the cold screen is in heat conduction connection with the extending part of the valve body, so that the cold screen can acquire cold energy from the extending part of the valve body. On the one hand, the cold energy leaked by the extension part can be recycled, and on the other hand, the cold screen can prevent the heat radiation of the external environment to the valve body, so that the loss of the cold energy of the valve body is reduced. In addition, it should be noted that, need not to set up additional low temperature fluid channel of non-expensive, lead complex structures such as cold structure in this application to, can simplify the holistic structure of low temperature control valve, reduce the space extravagant, also can reduce cost, simultaneously, also applicable to the low temperature transmission system that can't install the cold structure of leading additional, have higher commonality.

In some possible embodiments, the cold screen includes a body portion and a connecting portion at one end of the body portion;

the body part is spaced from the extension part, and the connecting part is abutted to one side surface of the extension part, which is far away from the valve core.

In some possible embodiments, a thermally conductive sheet is interposed between the connection portion and the extension portion.

In some possible embodiments, the cold screen comprises opposing first and second semi-circular tubes;

the first semicircular tube comprises a first body part and a first connecting part positioned at one end of the first body part;

the second semicircular tube comprises a second body part and a second connecting part positioned at one end of the second body part;

the first body part is abutted with the second body part, the first connecting part is abutted with the second connecting part, and the first connecting part and the second connecting part are fixed through a locking assembly.

In some possible embodiments, the locking assembly includes a first hoop sheet and a second hoop sheet that are disposed opposite to each other, the first hoop sheet and the second hoop sheet are disposed around one side of the first connection portion and the second connection portion away from the extension portion, and the first hoop sheet and the second hoop sheet are locked by a bolt.

In some possible embodiments, the low-temperature regulating valve comprises a plurality of cold shields, the cold shields are sleeved on one side of the extending part away from the valve core layer by layer, and each cold shield is in heat conduction connection with the extending part.

In some possible embodiments, the cryogenically adjusted valve comprises a first cold shield, a second cold shield, and a third cold shield;

the first cold screen is sleeved on the extension part, and one end of the first cold screen, which is far away from the valve main body, is in heat conduction connection with the extension part;

the second cold screen is arranged in the first cold screen and sleeved on the extension part, and one end of the second cold screen far away from the valve main body is in heat conduction connection with the extension part;

the third cold screen is arranged in the second cold screen and sleeved on the extension part, and one end, far away from the valve main body, of the third cold screen is in heat conduction connection with the extension part.

In some possible embodiments, the cryogenically-adjusted valve further comprises a vacuum tube sleeved on a side of the at least one cold shield remote from the extension and extending outside the valve body.

In some possible embodiments, the flow channel comprises a first sub-flow channel, a second sub-flow channel, a first channel, and a second channel;

the first sub-flow passage and the second sub-flow passage are separated by a partition plate, the first passage and the second passage are respectively arranged at two sides of the partition plate, the first passage is communicated with the first sub-flow passage, the second passage is communicated with the second sub-flow passage, and the first passage is communicated with the second passage by a third passage;

when the flow channel is disconnected, the valve core is inserted into the first channel in a sealing way.

In addition, the application also provides a low-temperature transmission system, which comprises the low-temperature regulating valve provided in each embodiment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a schematic cross-sectional structural view of a cryogenically-regulated valve in some embodiments;

FIG. 2 shows a schematic cross-sectional view of a valve body in some embodiments;

FIG. 3 illustrates a schematic perspective cross-sectional structural view of a cryogenically-regulated valve in some embodiments;

FIG. 4 is a schematic cross-sectional view showing a low-temperature regulating valve in another embodiment;

FIG. 5 illustrates a schematic view of a first cold screen and valve body in partial cross-section in some embodiments;

FIG. 6 illustrates a partial perspective view of a first cold screen in some embodiments;

fig. 7 illustrates a schematic cross-sectional view of a locking assembly in some embodiments.

Description of main reference numerals:

1000-a low-temperature regulating valve;

100-valve body; 110-a valve body; 111-flow channels; 111 a-a first sub-flow path; 111 b-a second sub-flow path; 111 c-a first channel; 111 d-a second channel; 111 e-third channel; 112-a separator; 120-extensions; 121-a piston chamber; 130-fitting part; 200-valve core; 300-cold screen; 310-a first cold screen; 3101-a body portion; 3102-a connection; 311-a first semicircle tube; 3111-a first body portion; 3112-first connection; 3113-a first connector plate; 312-a second semicircle tube; 3121-a second body portion; 3122-a second connection; 3123-a second connector plate; 320-a second cold screen; 330-a third cold screen; 400-locking assembly; 410-a first hoop sheet; 420-a second hoop sheet; 430-a bolt; 500-vacuum tube; 600-heat conductive sheet; 700-sealing ring; 800-end caps;

2100-first transfer tube; 2200-a second transfer tube.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1, in an embodiment, a low temperature regulating valve 1000 is provided, which can be applied to a low temperature transmission system.

As shown in fig. 1 and fig., the low temperature regulating valve 1000 may include a valve body 100, a valve cartridge 200, and at least one cold screen 300.

Wherein the valve body 100 may include an integral valve body 110 and extension 120. The valve body 110 may be provided with a flow passage 111 through which an expensive cryogenic fluid passes. The valve cartridge 200 is slidably mounted to the extension 120 and extends to the valve body 110 to control the opening of the flow passage 111. Accordingly, the extension 120 may have a piston cavity 121 formed therein. The piston chamber 121 may extend through the extension 120 and to the valve body 110 in communication with the flow passage 111. The spool 200 is slidably mounted in the piston chamber 121.

At least one cold screen 300 may be sleeved on a side of the extension portion 120 away from the valve core 200, i.e. at least one cold screen 300 is sleeved on an outer side of the extension portion 120. In addition, the at least one cold screen 300 may be thermally conductively coupled to the extension 120.

It will be appreciated that the temperature of the valve body 100 is intermediate between the expensive cryogenic fluid and the external environment. During use, the valve body 100 leaks heat, i.e., cold, to the outside environment and exhibits a gradual increase in temperature of the extension 120 from the end near the valve body 110 to the end remote from the valve body 110.

In an embodiment, through the heat conduction connection between the cold screen 300 and the extension portion 120, the cold energy dissipated outwards by the extension portion 120 can be conducted to the cold screen 300, so as to realize the recycling of the cold energy in the heat leakage process. Meanwhile, the cold screen 300 may be in a low temperature state after receiving the cold energy to block heat radiation between the external environment and the extension 120, thereby reducing the cold energy loss of the extension 120 and further reducing the cold energy loss of the expensive low temperature fluid. Meanwhile, other complex structures such as an inexpensive low-temperature fluid channel, a cold guide structure and the like are not required to be configured in the low-temperature regulating valve 1000, so that the whole structure of the low-temperature regulating valve 1000 can be simplified, the space waste can be reduced, and the cost of the low-temperature regulating valve 1000 can be reduced. Meanwhile, the method is applicable to a low-temperature transmission system which cannot be additionally provided with a cold guide structure, and has higher universality.

As shown in fig. 1 and 2, further, in some embodiments, the flow passage 111 in the valve body 110 may include a first sub-flow passage 111a and a second sub-flow passage 111b. The first sub-flow path 111a and the second sub-flow path 111b may be disconnected by a partition 112. In addition, the flow channel 111 further includes a first channel 111c and a second channel 111d that are disposed in parallel, and the first channel 111c and the second channel 111d may be separated by a partition 112. One end of the first passage 111c may communicate with the first sub-flow passage 111a, and the other end of the first passage 111c may be opposite to and communicate with the piston chamber 121. One end of the second channel 111d may communicate with the second sub-channel 111b. The end of the second channel 111d remote from the second sub-channel 111b may communicate with the end of the first channel 111c remote from the first sub-channel 111a through the third channel 111 e.

In an embodiment, when the valve core 200 extends into the valve main body 110, the valve core 200 may be inserted into an end of the first channel 111c away from the first sub-channel 111a, and the valve core 200 may be disposed in a sealing manner with an inner wall of the first channel 111 c. Thus, the communication between the first sub-flow passage 111a and the second sub-flow passage 111b, i.e., the flow passage 111, can be disconnected.

When the flow channel 111 needs to be opened for the passage of the expensive cryogenic fluid, the valve core 200 can be pulled out relative to the first channel 111c, so that the valve core 200 is separated from the first channel 111c and the third channel 111e, and accordingly, the first sub-flow channel 111a and the second sub-flow channel 111b can be communicated through the first channel 111c, the third channel 111e and the second channel 111d in sequence.

In some embodiments, the end of the valve cartridge 200 near the valve body 110 may be inverted cone-shaped. Thus, when the valve cartridge 200 is inserted into the first passage 111c to different depths, the flow rate between the third passage 111e and the first passage 111c, i.e., the opening degree of the flow passage 111, can be adjusted to control the flow rate of the expensive cryogenic fluid.

In some embodiments, an end of the first sub-flow channel 111a remote from the first channel 111c may be used to connect the first transfer tube 2100. An end of the second sub-flow path 111b remote from the second flow path 111d may be used to connect the second transfer pipe 2200. The first and second transfer pipes 2100 and 2200 may be transfer pipes for transferring expensive cryogenic fluids in a cryogenic transfer system.

As shown in fig. 1 and 3, in some embodiments, the cryo-regulating valve 1000 may include three cold shields 300, namely a first cold shield 310, a second cold shield 320, and a third cold shield 330. The first cold screen 310 may be sleeved on a side of the extension portion 120 away from the valve core 200, that is, the first cold screen 310 is sleeved on an outer side of the extension portion 120. In addition, an end of the first cold shield 310 remote from the valve body 110 may be thermally conductively coupled to the extension 120.

The second cold screen 320 may be located in the first cold screen 310 and sleeved outside the extension 120. It is understood that the second cold screen 320 may be housed within the first cold screen 310. In addition, an end of the second cold screen 320 remote from the valve body 110 may be thermally conductively coupled to the extension 120.

The third cold screen 330 may be located in the second cold screen 320 and sleeved outside the extension 120. That is, the third cold screen 330 is accommodated within the second cold screen 320. In addition, an end of the third cold screen 330 remote from the valve body 110 may be thermally conductively coupled to the extension 120.

In an embodiment, the thermal conductive connection position of the third cold shield 330 and the extension portion 120, the thermal conductive connection position of the second cold shield 320 and the extension portion 120, and the thermal conductive connection position of the first cold shield 310 and the extension portion 120 may be gradually far away from the valve main body 110.

In other embodiments, the cryogenically-adjustable valve 1000 may also include two, four, or five cold shields 300, where a plurality of cold shields 300 may be layered on a side of the extension 120 away from the valve core 200, and an end of each cold shield 300 away from the valve body 110 is thermally conductively connected to the extension 120.

In other embodiments, as shown in fig. 4, the cryogenically-adjusted valve 1000 may also include a cold shield 300, wherein the cold shield 300 may be sleeved outside the extension 120, and an end of the cold shield 300 remote from the valve body 110 may be thermally conductively connected to the extension 120.

In the embodiment, the structures and installation manners of the first cold screen 310, the second cold screen 320 and the third cold screen 330 may be similar, and the first cold screen 310 will be described in detail.

As shown in fig. 3, 5 and 6, the first cold screen 310 may include opposing first and second semicircular tubes 311 and 312. The first semicircle tube 311 and the second semicircle tube 312 may be separately disposed at both sides of the extension portion 120. And the end face of the first semicircular tube 311, which is close to the second semicircular tube 312, can be in seamless fit with the end face of the second semicircular tube 312, which is close to the first semicircular tube 311.

In addition, the first semicircle tube 311 may include a first body portion 3111 and a first connection portion 3112 that are integrated. The first body portion 3111 and the first connection portion 3112 may each be semi-tubular and coaxial. It is understood that the first body portion 3111 and the first connection portion 3112 may be connected by a first engagement plate 3113. In an embodiment, the first connection portion 3112 may be located at an end of the first body portion 3111 remote from the valve main body 110.

Of course, in other embodiments, the first connection portion 3112 and the first engagement plate 3113, and the first engagement plate 3113 and the first body portion 3111 may be connected by welding.

The second semicircle tube 312 may include an integral second body portion 3121 and second connection portion 3122. The second body portion 3121 and the second connection portion 3122 may each have a semicircular tube shape and be coaxial. It is understood that the second body portion 3121 and the second connection portion 3122 may be connected by the second engagement plate 3123. In an embodiment, the second connection portion 3122 may be located at an end of the second body portion 3121 remote from the valve main body 110.

In other embodiments, the second connection portion 3122 and the second engagement plate 3123, and the second engagement plate 3123 and the second body portion 3121 may be connected by welding or the like.

In an embodiment, the first body portion 3111 may be opposite to the second body portion 3121, and an end surface of the first body portion 3111 near one end of the second body portion 3121 may be abutted against an end surface of the second body portion 3121 near one end of the first body portion 3111. The first body portion 3111 and the second body portion 3121 may cooperate to enclose a body portion 3101 that is closed and that appears as a circular tube. The body portion 3101 may be spaced apart from the extension portion 120, i.e., the body portion 3101 is not in contact with the extension portion 120.

The first connection portion 3112 may be opposite to the second connection portion 3122. An end surface of the first connection portion 3112 near one end of the second connection portion 3122 may abut against an end surface of the second connection portion 3122 near one end of the first connection portion 3112. And the first connection portion 3112 and the second connection portion 3122 may be fitted to enclose a connection portion 3102 that is closed and takes on a circular tube shape. The connection portion 3102 may closely abut a side surface of the extension portion 120 remote from the spool 200 to achieve a thermally conductive connection. That is, the first cold screen 310 is thermally conductively connected to the extension 120 through the connection portion 3102, and the cold in the extension 120 can be transferred to the cold screen 300 through the connection portion 3102. It is appreciated that the inner diameter of the connecting portion 3102 may be smaller than the inner diameter of the body portion 3101.

In some embodiments, a heat conducting sheet 600 may be further disposed between the extending portions 120 of the connection portion 3102, so as to reduce the thermal resistance between the connection portion 3102 and the extending portions 120, and improve the cold conduction efficiency between the connection portion 3102 and the extending portions 120. In some embodiments, the thermally conductive sheet 600 may be an indium sheet or a thermally conductive grease coated between the connection portion 3102 and the extension portion 120.

As shown in fig. 5 and 6, in some embodiments, the first connection portion 3112 and the second connection portion 3122 may be locked and fixed by the locking assembly 400, that is, the fixed connection between the first semicircular tube 311 and the second semicircular tube 312 may be achieved, and the first cold shield 310 may be fixed to the extension portion 120, so as to ensure the cold transfer efficiency between the first cold shield 310 and the extension portion 120, and simultaneously, reduce the cold loss.

Referring again to fig. 7, in some embodiments, locking assembly 400 may include a first anchor tab 410, a second anchor tab 420, and a bolt 430. The first anchor ear piece 410 and the second anchor ear piece 420 may encircle one side of the connection portion 3102 away from the extension portion 120, and the first anchor ear piece 410 and the second anchor ear piece 420 may be locked and fixed by the bolt 430, so that the first anchor ear piece 410 and the second anchor ear piece 420 tightly abut against the connection portion 3102, and the connection portion 3102 tightly abuts against the extension portion 120.

In other embodiments, the locking assembly 400 may also include a steel wire that may be tightly wound around the side of the connection portion 3102 remote from the extension portion 120, and both ends of the steel wire may be twisted into a twist shape.

In an embodiment, as shown in fig. 1, the cryogenically adjusted valve 1000 also includes a vacuum tube 500. The vacuum tube 500 may have a generally inverted T-shape. The vacuum tube 500 may be sleeved on a side of the first cold screen 310 remote from the extension 120. In addition, the vacuum tube 500 may extend to the valve body 110 position, and the valve body 110 may be accommodated in the vacuum tube 500. It is understood that the vacuum tube 500 may be in communication with the vacuum structure of the cryogenic transfer system.

In some embodiments, the valve body 100 further includes a fitting portion 130, the fitting portion 130 may have an annular plate structure, and the fitting portion 130 may be disposed around an end of the extension portion 120 away from the valve body 110. In an embodiment, the fitting portion 130 may be integrally provided with the extension portion 120. The end of the vacuum tube 500 away from the valve body 110 may abut against the fitting portion 130, and the fitting portion 130 may close the end of the vacuum tube 500 away from the valve body 110. In some embodiments, the vacuum tube 500 and the fitting 130 may be connected by welding.

In some embodiments, the cryogenically adjusted valve 1000 further includes an end cap 800, wherein the end cap 800 may cover an end of the extension 120 remote from the valve body 110 and may seal the piston cavity 121. And the end cap 800 may be fixedly coupled to the fitting portion 130 by means of screw coupling or the like. In the embodiment, the valve core 200 can be slidably arranged through the end cover 800, and the sealing of the connection position of the valve core 200 and the end cover 800 can be realized through the sealing ring 700.

In addition, a cryogenic transfer system is provided in an embodiment, which may include the cryo-regulating valve 1000 provided in an embodiment.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A cryogenically-adjusted valve, comprising:

the valve body comprises a valve main body and an extension part, and a flow passage is formed in the valve main body;

a valve core slidably disposed in the valve body and extending to the extension portion to control an opening degree of the flow passage;

and the at least one cold screen is sleeved on one side of the valve main body far away from the valve core and is in heat conduction connection with the extension part.

2. The cryogenically-adjusted valve of claim 1 wherein the cold shield comprises a body portion and a connecting portion at one end of the body portion;

the body part is spaced from the extension part, and the connecting part is abutted to one side surface of the extension part, which is far away from the valve core.

3. The low temperature regulating valve according to claim 2, wherein a heat conductive sheet is interposed between the connecting portion and the extending portion.

4. A cryogenically-adjusted valve according to claim 2 or claim 3 wherein the cold shield comprises opposed first and second semicircular tubes;

the first semicircular tube comprises a first body part and a first connecting part positioned at one end of the first body part;

the second semicircular tube comprises a second body part and a second connecting part positioned at one end of the second body part;

the first body part is abutted with the second body part, the first connecting part is abutted with the second connecting part, and the first connecting part and the second connecting part are fixed through a locking assembly.

5. The low temperature control valve of claim 4, wherein the locking assembly comprises a first anchor ear piece and a second anchor ear piece that are disposed opposite to each other, the first anchor ear piece and the second anchor ear piece are disposed around one side of the first connection portion and the second connection portion away from the extension portion, and the first anchor ear piece and the second anchor ear piece are locked by a bolt.

6. The low temperature regulator valve of claim 1, wherein the low temperature regulator valve comprises a plurality of cold shields, the cold shields are sleeved on one side of the extension portion away from the valve core layer by layer, and each cold shield is in heat conduction connection with the extension portion.

7. The cryogenically-adjusted valve of claim 6 wherein the cryogenically-adjusted valve comprises a first cold shield, a second cold shield, and a third cold shield;

the first cold screen is sleeved on the extension part, and one end of the first cold screen, which is far away from the valve main body, is in heat conduction connection with the extension part;

the second cold screen is arranged in the first cold screen and sleeved on the extension part, and one end of the second cold screen far away from the valve main body is in heat conduction connection with the extension part;

the third cold screen is arranged in the second cold screen and sleeved on the extension part, and one end, far away from the valve main body, of the third cold screen is in heat conduction connection with the extension part.

8. The valve of claim 1, further comprising a vacuum tube, wherein the vacuum tube is sleeved on a side of the at least one cold shield away from the extension and extends outside the valve body.

9. The cryogenically-adjusted valve of claim 1 wherein the flow path comprises a first sub-flow path, a second sub-flow path, a first channel, and a second channel;

the first sub-flow passage and the second sub-flow passage are separated by a partition plate, the first passage and the second passage are respectively arranged at two sides of the partition plate, the first passage is communicated with the first sub-flow passage, the second passage is communicated with the second sub-flow passage, and the first passage is communicated with the second passage by a third passage;

when the flow channel is disconnected, the valve core is inserted into the first channel in a sealing way.

10. A cryogenic transfer system comprising a cryogenic regulating valve according to any one of claims 1 to 9.

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