Monitoring system of refrigerating medium storage device and refrigerating medium storage device

Abstract

The invention relates to the technical field of machinery, and discloses a monitoring system of a refrigerating medium storage device and the refrigerating medium storage device. The system comprises a temperature sensor, a fixing seat, a first connecting piece, a base, a heat conduction layer and a fastening layer, the fixing seat is fixed to the surface of a refrigerating medium storage tank of the refrigerating medium storage device, the base is connected with the fixing seat through the first connecting piece, the temperature sensor is arranged in the base, and the fastening layer is arranged on the base. The heat conduction layer is arranged between the base and the temperature sensor, and the fastening layer is used for fixing and pressing the temperature sensor. Therefore, the temperature sensor can be arranged on the surface of the refrigerating medium storage tank of the refrigerating medium storage device, temperature monitoring of the refrigerating medium storage device is achieved, and the refrigerating medium storage device has the advantages of saving installation space, being high in monitoring accuracy and reliability and being reusable.

Description

Technical Field

[0001] The present invention relates to the field of mechanical technology, and in particular to a monitoring system for a refrigeration medium storage device and a refrigeration medium storage device. Background Art

[0002] Superconducting magnets can be used in the field of maglev trains to provide magnetic fields for maglev trains to achieve sufficient suspension and propulsion. However, in order to ensure that superconducting magnets can operate stably in a low-temperature environment for a long time, it is necessary to provide sufficient coolant to continuously cool the superconducting magnets to reduce the risk of superconducting magnet quenching.

[0003] By installing an on-board superconducting magnet refrigerant medium storage device on the superconducting magnet, the refrigerant in the superconducting magnet can be replenished in time, thereby balancing the heat load of the superconducting magnet system during operation and ensuring that the superconducting magnet can maintain stable operation. During this process, real-time temperature monitoring of the on-board refrigeration system is required to ensure that the system is in normal working condition.

[0004] Currently, most on-vehicle refrigerant medium storage devices use liquid level meters to monitor temperature, but liquid level meters are expensive and easily damaged, and they take up a large installation space in actual use. Summary of the invention

[0005] The present invention provides a monitoring system for a refrigeration medium storage device and a refrigeration medium storage device, which can solve the technical problems in the prior art.

[0006] The present invention provides a monitoring system for a refrigeration medium storage device, wherein the system includes a temperature sensor, a fixing seat, a first connecting member, a base, a heat-conducting layer and a fastening layer, wherein the fixing seat is fixed on the surface of a refrigeration medium storage tank of the refrigeration medium storage device, the base is connected to the fixing seat through the first connecting member, the temperature sensor is arranged in the base, the heat-conducting layer is arranged between the base and the temperature sensor, and the fastening layer is used to fix and press the temperature sensor.

[0007] Preferably, the system further comprises an indium sheet arranged on the bottom surface of the base.

[0008] Preferably, the fixing seat is provided with a threaded hole, the first connecting member is a stud, and the base is connected to the fixing seat by the cooperation between the stud and the threaded hole.

[0009] Preferably, the stud is integrally formed with the base.

[0010] Preferably, the system further comprises a second connecting member, and the fastening layer is connected to the base via the second connecting member to fix and compress the temperature sensor.

[0011] Preferably, the second connecting member is a screw.

[0012] Preferably, the base and the fastening layer are made of copper.

[0013] Preferably, the material of the heat-conducting layer is heat-conducting glue.

[0014] The present invention also provides a refrigeration medium storage device, wherein the device includes an outer cylinder, a support, a refrigeration medium storage tank, a vacuum interlayer and the above-mentioned monitoring system, the refrigeration medium storage tank is arranged in the outer cylinder through the support, the vacuum interlayer is arranged between the refrigeration medium storage tank and the outer cylinder, and the refrigeration medium storage tank is provided with one or more monitoring points.

[0015] Preferably, the outer cylinder and the refrigerant medium storage tank are both in the shape of metal cylinders.

[0016] Through the above technical solution, a temperature sensor can be arranged on the surface of the refrigerant medium storage tank of the refrigerant medium storage device to realize the temperature monitoring of the refrigerant medium storage device, thereby saving the installation space occupied; by arranging the temperature sensor in the base, arranging a heat conductive layer between the base and the temperature sensor, and fixing and pressing the temperature sensor with the fastening layer, the monitoring accuracy and reliability of the temperature sensor are greatly improved, and the dynamic environment of the vehicle-mounted refrigerant can be better adapted. In addition, the temperature sensor can be reused to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram showing a monitoring system for a refrigeration medium storage device according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of an installation structure of a temperature sensor according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of a refrigeration medium storage device according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0024] Figure 1 A schematic diagram of a monitoring system for a refrigeration medium storage device according to an embodiment of the present invention is shown.

[0025] For example, Figure 1 The monitoring system shown can be applied to the temperature monitoring of the refrigeration medium storage device of the vehicle-mounted superconducting magnet.

[0026] Figure 2 A schematic diagram of an installation structure of a temperature sensor according to an embodiment of the present invention is shown.

[0027] like Figure 1 and 2As shown, an embodiment of the present invention provides a monitoring system for a refrigeration medium storage device, wherein the system includes a temperature sensor 11, a fixing seat 9, a first connecting member 13, a base 14, a heat conductive layer 15 and a fastening layer 17, wherein the fixing seat 9 is fixed to a refrigeration medium storage tank surface 8 of the refrigeration medium storage device, the base 14 is connected to the fixing seat 9 via the first connecting member 13, the temperature sensor 11 is arranged in the base 14, the heat conductive layer 15 is arranged between the base 14 and the temperature sensor 11, and the fastening layer 17 is used to fix and press the temperature sensor 11.

[0028] Through the above technical solution, a temperature sensor can be arranged on the surface of the refrigerant medium storage tank of the refrigerant medium storage device to realize the temperature monitoring of the refrigerant medium storage device, thereby saving the installation space occupied; by arranging the temperature sensor in the base, arranging a heat conductive layer between the base and the temperature sensor, and fixing and pressing the temperature sensor with the fastening layer, the monitoring accuracy and reliability of the temperature sensor are greatly improved, and the dynamic environment of the vehicle-mounted refrigerant can be better adapted. In addition, the temperature sensor can be reused to avoid waste.

[0029] The fixing seat can be fixed on the surface 8 of the refrigeration medium storage tank by welding to be used for setting the base. The temperature sensor can be a low temperature temperature sensor.

[0030] According to an embodiment of the present invention, the system further includes an indium sheet 12 disposed on the bottom surface of the base 14 .

[0031] In other words, the indium sheet is located between the base and the mounting surface of the vehicle-mounted superconducting magnet refrigerant medium storage device; the indium sheet has high thermal conductivity and good ductility, and after being pressed, it can effectively enhance the contact effect between the base and the refrigerant medium storage device and reduce thermal resistance.

[0032] According to an embodiment of the present invention, the fixing seat 9 is provided with a threaded hole 10, the first connecting member 13 is a stud, and the base 14 is connected to the fixing seat 9 by the cooperation between the stud and the threaded hole.

[0033] The threaded hole can be formed in the fixing seat by machining and connected with the stud.

[0034] For example, the studs may be made of copper, which has a relatively high thermal conductivity.

[0035] According to an embodiment of the present invention, the stud and the base 14 are integrally formed.

[0036] That is, the stud and the base are processed as one piece.

[0037] According to an embodiment of the present invention, the system further includes a second connecting member 16 , and the fastening layer 17 is connected to the base 14 through the second connecting member 16 to fix and compress the temperature sensor 11 .

[0038] According to an embodiment of the present invention, the second connecting member 16 is a screw.

[0039] That is, the fastening layer and the base may be compressed by screws.

[0040] According to an embodiment of the present invention, the base 14 and the fastening layer 17 are made of copper.

[0041] For example, the base may be a copper block, and the fastening layer may be a copper sheet.

[0042] Among them, the use of copper with higher thermal conductivity can make the measuring point contact with the temperature sensor better and ensure the contact effect.

[0043] According to an embodiment of the present invention, the material of the heat-conducting layer 15 is heat-conducting glue.

[0044] Among them, the thermal conductive adhesive has high thermal conductivity and can fully fill the gap between the temperature sensor and the thermal conductive layer, so that the temperature sensor and the base have better contact and smaller thermal resistance.

[0045] The installation sequence of the installation structure of the temperature sensor according to the present invention is described below with reference to examples.

[0046] 1. Use copper blocks with higher thermal conductivity to machine out studs and bases;

[0047] 2. Apply a layer of thermal conductive glue on the inner surface of the base where the temperature sensor is placed;

[0048] 3. Place the temperature sensor in the base;

[0049] 4. Fasten the fastening layer and the base with screws;

[0050] 5. Place a layer of indium sheet on the bottom of the base;

[0051] 6. Connect the temperature sensor mounting structure to the threaded hole on the fixing base through the studs.

[0052] Figure 3 A schematic diagram of a refrigeration medium storage device according to an embodiment of the present invention is shown.

[0053] like Figure 3As shown, an embodiment of the present invention further provides a refrigeration medium storage device, wherein the device includes an outer cylinder 1, a support 2, a refrigeration medium storage tank 3, a vacuum interlayer 4 and the monitoring system described in the above embodiments, the refrigeration medium storage tank 3 is arranged in the outer cylinder 1 through the support 2, the vacuum interlayer 4 is arranged between the refrigeration medium storage tank 3 and the outer cylinder 1, and the refrigeration medium storage tank 3 is provided with one or more monitoring points.

[0054] Among them, the monitoring system is set at the monitoring point.

[0055] For example, three monitoring points can be set on the surface of the storage tank, namely, the storage tank top temperature sensor monitoring point 5, the storage tank middle temperature sensor monitoring point 6 and the storage tank bottom temperature sensor monitoring point 7. Among them, the storage tank top temperature sensor monitoring point 5 uses a temperature sensor to monitor the temperature of the top of the storage tank. This position is a key monitoring position, and the system redundancy can be increased by adding a backup temperature sensor; the storage tank middle temperature sensor monitoring point 6 uses a temperature sensor to monitor the temperature of the middle of the storage tank; the storage tank bottom temperature sensor monitoring point 7 uses a temperature sensor to monitor the temperature of the bottom of the storage tank.

[0056] Among them, by setting up the vacuum layer, the refrigeration medium loss of the refrigeration medium storage tank can be reduced by reducing heat convection.

[0057] According to an embodiment of the present invention, the outer cylinder 1 and the refrigerant medium storage tank 3 are both in the shape of metal cylinders.

[0058] For example, the support member 2 may be made of epoxy material.

[0059] The refrigeration medium storage tank is supported by the support member, and the refrigeration medium storage tank can be suspended and fixed in the outer cylinder.

[0060] It can be seen from the above embodiments that the monitoring system for a refrigeration medium storage device and the refrigeration medium storage device of the present invention have at least the following advantages:

[0061] 1. The temperature monitoring system of the vehicle-mounted superconducting magnet refrigerant medium storage device is built by using the temperature sensor layout to realize the temperature monitoring of the vehicle-mounted superconducting magnet refrigerant medium storage device, avoiding the use of a more complicated refrigerant level meter;

[0062] 2. The entire system can be flexibly monitored by adding or replacing sensor measuring points more conveniently;

[0063] 3. The temperature sensor is in full contact with the on-board superconducting magnet refrigerant storage device, which can effectively improve the monitoring accuracy and reliability of the temperature sensor;

[0064] 4. The temperature sensor is reliably fixed by screw connection through the temperature sensor fixing structure, making the temperature sensor more suitable for the dynamic environment of the vehicle-mounted device;

[0065] 5. The temperature sensor can be maintained by the temperature sensor fixing structure. When the temperature sensor fails, the entire temperature sensor and the fixed connection structure can be replaced directly and conveniently, which greatly shortens the maintenance time of the temperature sensor when a failure occurs;

[0066] 6. The temperature sensor fixing structure realizes the reusability of the temperature sensor. After a test project is completed, the temperature sensor can be disassembled to realize the more convenient reusability of the temperature sensor.

[0067] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0068] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0069] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A monitoring system for a refrigeration medium storage device, It is characterized in that The system comprises a temperature sensor (11), a fixing seat (9), a first connecting member (13), a base (14), a heat-conducting layer (15) and a fastening layer (17); the fixing seat (9) is fixed on a surface (8) of a refrigerating medium storage tank of a refrigerating medium storage device; the base (14) is connected to the fixing seat (9) via the first connecting member (13); the temperature sensor (11) is arranged in the base (14); the heat-conducting layer (15) is arranged between the base (14) and the temperature sensor (11); and the fastening layer (17) is used to fix and press the temperature sensor (11).

2. The system according to claim 1, It is characterized in that The system also includes an indium sheet (12) arranged on the bottom surface of the base (14).

3. The system according to claim 2, It is characterized in that The fixing seat (9) is provided with a threaded hole, the first connecting member (13) is a stud, and the base (14) is connected to the fixing seat (9) through the cooperation between the stud and the threaded hole.

4. The system according to claim 3, It is characterized in that The stud and the base (14) are integrally formed.

5. The system according to claim 4, It is characterized in that The system further comprises a second connecting member (16), and the fastening layer (17) is connected to the base (14) via the second connecting member (16) to fix and compress the temperature sensor (11).

6. The system according to claim 5, It is characterized in that The second connecting member (16) is a screw.

7. The system according to any one of claims 1 to 6, It is characterized in that The base (14) and the fastening layer (17) are made of copper.

8. The system according to any one of claims 1 to 6, It is characterized in that The material of the heat-conducting layer (15) is heat-conducting glue.

9. A refrigeration medium storage device, It is characterized in that The device comprises an outer cylinder (1), a support member (2), a refrigeration medium storage tank (3), a vacuum interlayer (4) and a monitoring system according to any one of claims 1 to 8, wherein the refrigeration medium storage tank (3) is arranged in the outer cylinder (1) through the support member (2), the vacuum interlayer (4) is arranged between the refrigeration medium storage tank (3) and the outer cylinder (1), and the refrigeration medium storage tank (3) is provided with one or more monitoring points.

10. The device according to claim 9, It is characterized in that The outer cylinder (1) and the refrigeration medium storage tank (3) are both in the shape of metal cylinders.

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