Interlayer vacuum degree detection device of vacuum heat insulation pressure vessel

Abstract

The utility model provides an interlayer vacuum degree detection device of a vacuum heat insulation pressure vessel, which comprises a shell and a machine core assembly, the shell comprises a front shell and a rear shell which are connected with each other, the machine core assembly is arranged in the shell, and the machine core assembly comprises a thermal imaging lens, a thermal imaging machine core and a control mainboard. A thermal imaging detector is coaxially arranged in the thermal imaging lens, the thermal imaging detector is electrically connected with the thermal imaging machine core, and the thermal imaging machine core is electrically connected with the control mainboard; a lens window is arranged at the position, corresponding to the thermal imaging lens, of the front shell, a display screen is arranged on the rear shell, and the display screen is electrically connected with the control mainboard. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel has the advantages of good universality, convenient operation and high detection accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection and testing of vacuum-insulated pressure vessels, and particularly relates to a device for detecting the vacuum degree of the interlayer of a vacuum-insulated pressure vessel. Background Art

[0002] Due to the special structure of the vacuum-insulated pressure vessel body, the outer container does not bear the internal pressure, and the inner cylinder that bears the internal pressure cannot be subjected to conventional inspection items. Therefore, the interlayer vacuum that ensures the safe and stable operation of the equipment has become the top priority in the inspection of vacuum-insulated pressure vessels.

[0003] At present, the regular inspection of vacuum-insulated pressure vessels generally tests the vacuum degree of their interlayers through the vacuum gauges equipped when the vessels leave the factory. The main disadvantages of this method are as follows:

[0004] 1) Poor versatility leads to high costs: Wide-range and high-precision vacuum gauges are expensive, and different types of gauges require different vacuum gauges for detection. Even some vessels do not come with vacuum gauges when they leave the factory, and can only be detected through means such as daily evaporation rate testing and helium leak detection. The detection process is complex and costly;

[0005] 2) Harsh operating conditions: Vacuum gauges are extremely easy to damage under external forces such as vibration, and are also prone to rusting when exposed to air for a long time;

[0006] 3) Low accuracy of test data: The lower limit of the range of the gauges equipped for pressure vessels with high-vacuum multi-layer insulation is usually higher than the vacuum degree of their own interlayers, resulting in distortion of the data measured by the vacuum gauge. Content of the Utility Model

[0007] The purpose of the utility model is to provide a device for detecting the vacuum degree of the interlayer of a vacuum-insulated pressure vessel, which can solve the problems of poor versatility, harsh operating conditions, and low accuracy of test data in the existing testing methods for the vacuum degree of the interlayer of vacuum-insulated pressure vessels.

[0008] The utility model provides a device for detecting the vacuum degree of the interlayer of a vacuum-insulated pressure vessel, comprising:

[0009] A housing, which includes a front housing and a rear housing connected to each other;

[0010] A movement assembly, which is arranged in the housing. The movement assembly includes a thermal imaging lens, a thermal imaging movement, and a control main board. A thermal imaging detector is coaxially arranged in the thermal imaging lens. The thermal imaging detector is electrically connected to the thermal imaging movement, and the thermal imaging movement is electrically connected to the control main board. A lens window is provided at a position corresponding to the thermal imaging lens on the front housing, and a display screen is provided on the rear housing. The display screen is electrically connected to the control main board.

[0011] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, a control button is further provided on the rear housing, and the control button is electrically connected to the control main board.

[0012] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, it further includes a laser ranging module and a visible light module disposed in the housing. The laser ranging module and the visible light module are both disposed above the thermal imaging lens, and the laser ranging module and the visible light module are respectively electrically connected to the control main board; a laser ranging window is provided on the front housing at a position corresponding to the laser ranging module, and a visible light window is provided on the front housing at a position corresponding to the visible light module.

[0013] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, the front housing includes a front housing main body and a front housing hand-held part, and the upper end of the front housing hand-held part is fixedly connected to the front housing main body.

[0014] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, the rear housing includes a rear housing main body and a rear housing hand-held part, and the upper end of the rear housing hand-held part is fixedly connected to the rear housing main body.

[0015] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, the front housing main body and the rear housing main body are connected by a buckle, so as to form a movement component installation cavity between the front housing main body and the rear housing main body, and the movement component is installed in the movement component installation cavity.

[0016] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, an installation hole is provided on the rear housing hand-held part, and an installation plate is provided on the front housing hand-held part at a position corresponding to the installation hole. An installation protrusion matching with the installation hole is provided on the installation plate, a threaded hole is provided on the installation protrusion, and the installation hole and the threaded hole are connected by a screw.

[0017] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, the front housing hand-held part and the rear housing hand-held part are connected by a buckle, so as to form a battery installation cavity between the front housing hand-held part and the rear housing hand-held part, and the battery installation cavity is communicated with the movement component installation cavity.

[0018] According to a sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model, it further includes a battery. The battery is installed in the battery installation cavity, and a battery contact plate is provided at the bottom of the movement component. The battery is electrically connected to the control main board through the battery contact plate.

[0019] A sandwich vacuum degree detection device for a vacuum-insulated pressure vessel provided by the present utility model. A battery installation opening is provided at the bottom of the battery installation cavity. A battery installation base is provided at the bottom of the battery. The battery passes through the battery installation opening and is arranged in the battery installation cavity, and the battery installation base is connected to the battery installation opening through a buckle.

[0020] For the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel provided by the present utility model, by installing the movement assembly in the shell, the internal movement assembly can be effectively protected by the shell; since the movement assembly includes a thermal imaging lens, a thermal imaging movement and a control main board, and a thermal imaging detector is coaxially arranged in the thermal imaging lens, the thermal imaging detector obtains the thermal radiation signal on the outer surface of the tank body of the vacuum-insulated pressure vessel through the thermal imaging lens, and then the thermal imaging movement converts and processes the thermal radiation signal into image data and temperature data. The thermal imaging movement then sends the processed image data and temperature data to the control main board. Since the conversion relationship data between the temperature on the outer surface of the tank body of the vacuum-insulated pressure vessel and the sandwich vacuum degree is pre-implanted in the control main board, by processing the temperature data, the sandwich vacuum degree detection data of the vacuum-insulated pressure vessel can be obtained, and then the detection data and video images output by the control main board are displayed through the display screen. Thus, the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel provided by the present utility model can utilize the technical means of infrared imaging to obtain the sandwich vacuum degree of the vacuum-insulated pressure vessel, and has the advantages of good versatility, wide range, convenient operation and high detection accuracy. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel of the present utility model;

[0023] Figure 2 It is an exploded structural diagram of the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the movement assembly in the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel of the present utility model;

[0025] Figure 4This is a schematic structural diagram of the front housing in the interlayer vacuum degree detection device of the vacuum-insulated pressure vessel of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of the rear housing in the interlayer vacuum degree detection device of the vacuum-insulated pressure vessel of the present utility model.

[0027] Explanation of reference numerals in the drawings:

[0028] 100, housing; 200, movement assembly;

[0029] 1, front housing; 11, front housing main body; 12, front housing hand-held part; 121, mounting plate; 122, mounting protrusion; 101, laser ranging window; 102, visible light window; 103, movement assembly installation cavity; 104, battery installation cavity;

[0030] 2, rear housing; 21, rear housing main body; 22, rear housing hand-held part; 221, mounting hole;

[0031] 3, thermal imaging lens; 4, thermal imaging movement; 5, control main board; 6, display screen; 7, laser ranging module;

[0032] 8, battery; 801, battery mounting seat;

[0033] 9, focusing ring; 10, control button; 13, auto-focus button; 14, thermal imaging lens button. Detailed implementation manners

[0034] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Prior art research has shown that heat from the environment first reaches the outer surface of the thermal insulation material through the outer surface of the tank body and the vacuum interlayer of the vacuum insulated pressure vessel, and then enters the inner container through the thermal insulation material. When reaching a steady state, the temperature difference between the inner wall surface of the outer container and the outer surface of the thermal insulation material of the vacuum insulated pressure vessel is the main cause of heat leakage into the inner container. The heat transfer from the outer container to the outer surface of the thermal insulation material mainly includes radiative heat leakage, gas heat conduction and gas convection heat transfer. When the vacuum degree of the interlayer of the vacuum chamber deteriorates, the heat leaking into the inner container increases, which means that the heat transfer amount from the inner wall surface of the outer container to the outer surface of the thermal insulation material increases. This is the result of the combined action of the change of the thermal resistance of the vacuum interlayer and the change of the temperature of the outer surface of the thermal insulation material. The prior art can obtain the relationship between the temperature of the outer surface of the tank body of the vacuum insulated pressure vessel and the vacuum degree of the interlayer through a series of theoretical analyses and numerical simulations.

[0038] Therefore, by using the infrared thermal imaging technology, the temperature of the outer surface of the tank body under different vacuum degrees of the interlayer can be obtained. Through the corresponding relationship between the vacuum degree of the interlayer and the temperature of the outer surface of the tank body, the vacuum degree of the interlayer of the vacuum insulated pressure vessel can be characterized by the temperature of the outer surface of the tank body. Accordingly, the present utility model provides a device for detecting the vacuum degree of the interlayer of a vacuum insulated pressure vessel.

[0039] As Figures 1 to 5 shown, the device for detecting the vacuum degree of the interlayer of the vacuum insulated pressure vessel according to the embodiment of the present utility model includes a housing 100 and a movement assembly 200. The housing 100 includes a front housing 1 and a rear housing 2 which are connected to each other.

[0040] The core assembly 200 is disposed in the housing 100, and the housing 100 can effectively protect the internal core assembly 200. The core assembly 200 includes a thermal imaging lens 3, a thermal imaging core 4, and a control mainboard 5. A thermal imaging detector is coaxially disposed in the thermal imaging lens 3, and the thermal imaging detector is electrically connected to the thermal imaging core 4, and the thermal imaging core 4 is electrically connected to the control mainboard 5. A lens window is disposed at a position corresponding to the thermal imaging lens 3 on the front housing 1, and a display screen 6 is disposed on the rear housing 2, and the display screen 6 is electrically connected to the control mainboard 5.

[0041] When in use, the thermal imaging detector obtains the thermal radiation signal of the outer surface of the tank body of the vacuum insulated pressure vessel through the thermal imaging lens 3, and then converts the thermal radiation signal into image data and temperature data through the thermal imaging movement 4. The thermal imaging movement 4 then sends the processed image data and temperature data to the control main board 5. Since the control main board 5 is pre-implanted with the conversion relationship data of the outer surface temperature of the tank body of the vacuum insulated pressure vessel and the vacuum degree of the interlayer, the vacuum degree detection data of the interlayer of the vacuum insulated pressure vessel can be obtained by processing the temperature data, and then the detection data and video images output by the control main board are displayed through the display screen 6.

[0042] Therefore, the interlayer vacuum degree detection device of the vacuum insulated pressure vessel of the embodiment of the utility model can obtain the interlayer vacuum degree of the vacuum insulated pressure vessel by means of infrared imaging technology, and has the advantages of good versatility, wide measuring range, convenient operation and high detection accuracy.

[0043] The vacuum degree detection device for the interlayer of the vacuum insulated pressure vessel of the embodiment of the utility model adopts infrared imaging technology to effectively solve the problem of matching different vacuum gauges for different types of gauges to test the vacuum degree of the interlayer in the prior art, thereby achieving the technical effect that one detection device can detect all types of vacuum insulated pressure vessels, and only needs to adjust the corresponding parameters, thereby effectively reducing the cost of use. Moreover, if the ambient environmental conditions meet the test requirements, whether the gauge of the vacuum insulated pressure vessel is damaged has no effect on the detection process of the detection device, so there are no special requirements for the use conditions.

[0044] It should be noted that since the conversion relationship data between the outer surface temperature of the tank body of the vacuum insulated pressure vessel and the interlayer vacuum degree is known in the prior art, after obtaining the outer surface temperature of the tank body of the vacuum insulated pressure vessel, the corresponding interlayer vacuum degree data can be obtained through the existing data processing method. Therefore, this technical solution does not involve improvements to the method itself.

[0045] In some embodiments of the present utility model, the interlayer vacuum degree detection device of the vacuum adiabatic pressure vessel further includes a laser ranging module 7 and a visible light module disposed within the housing 100. The laser ranging module 7 and the visible light module are both disposed above the thermal imaging lens 3, and the laser ranging module 7 and the visible light module are respectively electrically connected to the control main board 5. At a position corresponding to the laser ranging module 7 on the front housing 1, a laser ranging window 101 is provided, and at a position corresponding to the visible light module on the front housing 1, a visible light window 102 is provided. Among them, the laser ranging module 7 is used to emit and receive reflected laser light to measure the distance between the measured target and the detection device. Among them, the visible light component is used to implement the visible light imaging function, enabling the detection personnel to simultaneously view the thermal imaging temperature image and the visible light image, facilitating the detection personnel to identify the target.

[0046] Specifically, a focusing ring 9 is installed on the thermal imaging lens 3 for adjusting the focal length to ensure clear images.

[0047] Specifically, a control button 10 is further provided on the rear housing 2. The control button 10 is electrically connected to the control main board 5, and the working state of the detection device can be controlled through the control button 10.

[0048] Specifically, an automatic focusing button 13 and a thermal imaging lens button 14 are further provided on the front housing 1. The automatic focusing control of the focusing ring 9 can be performed through the automatic focusing button 13. By pressing the thermal imaging lens button 14 briefly, the thermal imaging lens 3 can be controlled to take a photo, and by pressing the thermal imaging lens button 14 for a long time, the thermal imaging lens 3 can be controlled to record a video.

[0049] Specifically, the front housing 1 includes a front housing main body 11 and a front housing hand-held part 12. The upper end of the front housing hand-held part 12 is fixedly connected to the front housing main body 11, and the front housing main body 11 and the front housing hand-held part 12 can be set as an integrally formed structure to ensure the structural reliability of the front housing 1. The rear housing 2 includes a rear housing main body 21 and a rear housing hand-held part 22. The upper end of the rear housing hand-held part 22 is fixedly connected to the rear housing main body 21, and the rear housing main body 21 and the rear housing hand-held part 22 can be set as an integrally formed structure to ensure the structural reliability of the rear housing 2.

[0050] Specifically, the front housing main body 11 and the rear housing main body 21 can be connected by a buckle, so that a movement component installation cavity 103 is formed after the front housing main body 11 and the rear housing main body 21 are buckled together. The movement component 200 is installed in the movement component installation cavity 103, thereby effectively protecting the movement component 200.

[0051] Among them, the front shell hand-held part 12 and the rear shell hand-held part 22 can be connected by a buckle, so that a battery installation cavity 104 is formed after the front shell hand-held part 12 and the rear shell hand-held part 22 are buckled, and the battery installation cavity 104 is communicated with the movement component installation cavity 103. That is to say, through the buckling and installation setting between the front shell hand-held part 12 and the rear shell hand-held part 22, it is not only convenient to install the battery 8 through the internal battery installation cavity 104, but also convenient to perform hand-held operation on the detection device through the external hand-held part.

[0052] Among them, an installation hole 221 is provided on the rear shell hand-held part 22, and an installation plate 121 is provided at the position corresponding to the installation hole 221 on the front shell hand-held part 12. An installation protrusion 122 matching the installation hole 221 is provided on the installation plate 121, and a threaded hole is provided on the installation protrusion 122. After the front shell hand-held part 12 and the rear shell hand-held part 22 are connected by a buckle, the corresponding installation hole and the threaded hole are connected by screws, thereby further improving the stability and reliability of the housing 100 after buckling and installation.

[0053] In some embodiments of the present invention, the sandwich vacuum degree detection device of the vacuum-insulated pressure vessel further includes a battery 8, and the battery 8 is installed in the battery installation cavity 104. A battery contact plate is provided at the bottom of the movement component 200, and the battery 8 is electrically connected to the control main board 5 through the battery contact plate. That is to say, by setting the battery 8, the movement component 200 can be powered to ensure the normal operation of the detection device.

[0054] Among them, a battery installation port is provided at the bottom of the battery installation cavity 104, and a battery installation seat 801 is provided at the bottom of the battery 8. The battery 8 passes through the battery installation port and is arranged in the battery installation cavity 104, and the battery installation seat 801 and the battery installation port can be connected by a buckle, thereby ensuring the stability and reliability of the battery 8 after installation.

[0055] In addition, anti-slip stripes are also provided on the outer side surface of the front shell hand-held part 12, which is convenient for more firm and stable hand-held operation.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vacuum degree detection device for an interlayer of a vacuum insulated pressure vessel, characterized in that: include: A housing, the housing comprising a front housing and a rear housing connected to each other; A movement assembly, wherein the movement assembly is arranged in the shell, and the movement assembly includes a thermal imaging lens, a thermal imaging movement and a control mainboard. A thermal imaging detector is coaxially arranged in the thermal imaging lens, and the thermal imaging detector is electrically connected to the thermal imaging movement, and the thermal imaging movement is electrically connected to the control mainboard. A lens window is arranged at a position corresponding to the thermal imaging lens on the front shell, and a display screen is arranged on the rear shell, and the display screen is electrically connected to the control mainboard.

2. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 1, characterized in that: A control button is also provided on the rear shell, and the control button is electrically connected to the control main board.

3. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 1, characterized in that: It also includes a laser ranging module and a visible light module arranged in the shell, the laser ranging module and the visible light module are both arranged above the thermal imaging lens, and the laser ranging module and the visible light module are electrically connected to the control main board respectively; a laser ranging window is provided on the front shell at a position corresponding to the laser ranging module, and a visible light window is provided on the front shell at a position corresponding to the visible light module.

4. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 1, characterized in that: The front shell body comprises a front shell body and a front shell hand-held part, and the upper end of the front shell hand-held part is fixedly connected to the front shell body.

5. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 4, characterized in that: The rear shell comprises a rear shell body and a rear shell hand-held part, and the upper end of the rear shell hand-held part is fixedly connected to the rear shell body.

6. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 5, characterized in that: The front shell body is connected to the rear shell body by snapping, so that a core assembly installation cavity is formed between the front shell body and the rear shell body, and the core assembly is installed in the core assembly installation cavity.

7. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 6, characterized in that: A mounting hole is provided on the hand-held part of the rear shell, a mounting plate is provided at a position corresponding to the mounting hole on the hand-held part of the front shell, a mounting protrusion matching the mounting hole is provided on the mounting plate, a threaded hole is provided on the mounting protrusion, and the mounting hole and the threaded hole are connected by screws.

8. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 5, characterized in that: The front shell hand-held part is connected to the rear shell hand-held part through a buckle, so that a battery installation cavity is formed between the front shell hand-held part and the rear shell hand-held part, and the battery installation cavity is connected to the movement component installation cavity.

9. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 8, characterized in that: It also includes a battery, which is installed in the battery installation cavity. A battery contact plate is provided at the bottom of the movement assembly, and the battery is electrically connected to the control main board through the battery contact plate.

10. The interlayer vacuum degree detection device of the vacuum insulation pressure vessel according to claim 9, characterized in that: A battery installation port is provided at the bottom of the battery installation cavity, a battery installation seat is provided at the bottom of the battery, the battery passes through the battery installation port and is arranged in the battery installation cavity, and the battery installation seat is connected to the battery installation port by a buckle.

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