A pressure gauge device with a temperature sensor

Abstract

The present invention provides a pressure gauge device with a temperature sensor, including a pressure gauge body, a pressure gauge mounting seat and a temperature sensor, the pressure gauge mounting seat includes a fixing seat and a connecting seat, the fixing seat is provided with a first inner cavity, the connecting seat is provided with a second inner cavity, the first inner cavity and the second inner cavity are connected through a first through hole; the pressure gauge body includes an instrument panel and a pressure sensor connected to the instrument panel, the instrument panel is installed in the first inner cavity of the fixing seat, the pressure sensor includes a first medium container, a filling medium and a diaphragm, one end of the first medium container is connected to the instrument panel through the first through hole, and the temperature sensor is arranged in the connecting seat. The present application obtains the temperature of the measured substance by setting a temperature sensor, thereby adding a temperature measurement function on the basis of the pressure gauge, and at the same time, sufficient space can prevent the first medium container and the temperature sensor from being affected by vibration or collision and causing misalignment, and has good adaptability.

Description

Technical Field

[0001] The invention relates to the field of pressure gauges, and in particular to a pressure gauge device with a temperature sensor. Background Art

[0002] A pressure gauge is a sensitive element that uses an elastic element. It is found in almost all industrial processes and scientific research fields, and can be found in thermal pipelines, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, and other fields.

[0003] The temperature sensor in the prior art is a public technology, but it cannot be well combined with the structure of the pressure gauge. Summary of the invention

[0004] Based on this, in order to solve the problem of mismatch between the temperature sensor and the pressure gauge, the present invention provides a pressure gauge device with a temperature sensor, and its specific technical solution is as follows:

[0005] A pressure gauge device with a temperature sensor comprises a pressure gauge body, a pressure gauge mounting seat and a temperature sensor, wherein the pressure gauge mounting seat comprises a fixing seat and a connecting seat connected in sequence from top to bottom, the fixing seat is provided with a first inner cavity, the connecting seat is provided with a second inner cavity, the first inner cavity and the second inner cavity are communicated through a first vertically arranged through hole; the pressure gauge body comprises an instrument panel and a pressure sensor connected to the instrument panel, the instrument panel is mounted in the first inner cavity of the fixing seat, the pressure sensor comprises a first medium container, a filling medium and a diaphragm, one end of the first medium container is connected to the instrument panel through the first through hole, the other end of the first medium container is connected to the diaphragm, the diaphragm seals the port of the first medium container, the temperature sensor is arranged in the connecting seat, the connecting seat is fixedly connected to the container to be measured, and one end of the first medium container connected to the diaphragm extends into the container to be measured.

[0006] The above-mentioned pressure gauge device with a temperature sensor obtains the temperature of the measured substance by setting the temperature sensor, thereby adding a temperature measurement function on the basis of the pressure gauge. At the same time, sufficient space can prevent the first medium container and the temperature sensor from being affected by factors such as vibration or collision and causing inaccuracy, and has good adaptability.

[0007] Furthermore, a vibration-damping connecting plate is arranged in the connecting seat.

[0008] Furthermore, a swing block is arranged on the vibration-damping connecting plate.

[0009] Furthermore, a second through hole is provided on the vibration-damping connecting plate, and the first medium container passes through the second through hole.

[0010] Furthermore, a buffer structure is provided on the inner wall of the connecting seat, and the vibration-damping connecting plate is connected to the buffer structure.

[0011] Furthermore, the buffer structure is hollow.

[0012] Furthermore, a second heat insulation layer is provided at the connection between the connecting seat and the container to be measured.

[0013] Furthermore, the outer surface of the portion of the first medium container located inside the measured container is covered with a first heat insulation layer.

[0014] Furthermore, each of the thermal insulation layers is made of thermal insulating carbon fiber material.

[0015] Furthermore, the first medium container and the diaphragm are both made of stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 It is a structural schematic diagram of a pressure gauge mounting seat of a pressure gauge device with a temperature sensor in one embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a pressure gauge body of a pressure gauge device with a temperature sensor in one embodiment of the present invention;

[0019] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Description of reference numerals:

[0021] 11. Fixed seat; 12. Connecting seat; 13. First through hole; 14. Vibration-damping connecting plate; 15. Swinging block; 16. Buffer structure; 17. Second thermal insulation layer; 18. Second through hole; 21. First medium container; 22. Diaphragm; 23. First thermal insulation layer; 24. Second medium container; 3. Temperature sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0026] like Figure 1-3 As shown, a pressure gauge device with a temperature sensor 3 in one embodiment of the present invention comprises a pressure gauge body, a pressure gauge mounting seat and a temperature sensor 3, wherein the pressure gauge mounting seat comprises a fixing seat 11 and a connecting seat 12 connected in sequence from top to bottom, wherein the fixing seat 11 is provided with a first inner cavity, and the connecting seat 12 is provided with a second inner cavity, and the first inner cavity and the second inner cavity are communicated through a first vertically arranged through hole 13; the pressure gauge body comprises an instrument panel and a pressure sensor connected to the instrument panel, wherein the instrument panel is mounted in the first inner cavity of the fixing seat 11, and the pressure sensor comprises a first medium container 21, a filling medium and a diaphragm 22, wherein one end of the first medium container 21 is connected to the instrument panel through the first through hole 13, and the other end of the first medium container 21 is connected to the diaphragm 22, and the diaphragm 22 seals the port of the first medium container 21, and the temperature sensor 3 is arranged in the connecting seat 12, wherein the connecting seat 12 is fixedly connected to the measured container, and one end of the first medium container 21 connected to the diaphragm 22 extends into the measured container. The first medium container 21 is a capillary tube, which is filled with a medium solution, and the medium solution is a mixture of silicone oil, phosphate ester or glycerol and water; the inner diameter of the capillary tube is 0.15mm-0.18mm, the outer diameter of the capillary tube is 14mm-16mm, the length of the capillary tube is 400mm-450mm, and the length of the capillary tube extending into the substance in the container to be tested is 160mm-180mm.

[0027] The above-mentioned pressure gauge device with a temperature sensor 3 obtains the temperature of the measured substance by setting the temperature sensor 3, thereby adding a temperature measurement function on the basis of the pressure gauge. At the same time, sufficient space can prevent the first medium container 21 and the temperature sensor 3 from being affected by factors such as vibration or collision and causing inaccuracy, and has good adaptability.

[0028] In one embodiment, a vibration-damping connecting plate 14 is disposed in the connecting seat 12 .

[0029] In one embodiment, the vibration-damping connecting plate 14 is provided with a second through hole 18, and the first medium container 21 passes through the second through hole 18. A soft rubber block is connected between the second through hole 18 and the first medium container 21, and the soft rubber block is used to absorb vibrations generated by the outside world and possible collisions that may be caused to the first medium container 21, thereby avoiding data inaccuracy.

[0030] In one embodiment, a swing block 15 is provided on the vibration-damping connecting plate 14. The swing block 15 may be a soft rubber spring with one end fixed on the vibration-damping connecting plate 14 and the other end of the soft rubber spring being a free end. When vibration occurs, the soft rubber spring reduces most of the vibration by swinging itself.

[0031] In one embodiment, a buffer structure 16 is disposed on the inner wall of the connecting seat 12 , and the vibration-damping connecting plate 14 is connected to the buffer structure 16 .

[0032] In one embodiment, the buffer structure 16 is hollow. This design can ensure that the buffer structure 16 has enough deformation space to reduce vibration.

[0033] In one embodiment, a second heat insulating layer 17 is provided at the connection between the connection base 12 and the measured container. Preferably, the heat insulating layer is connected to each surface of the connection base 12 to form an insulating cavity to avoid affecting the temperature measurement of the temperature sensor 3.

[0034] In one embodiment, the outer surface of the part of the first medium container 21 located in the measured container is coated with a first heat insulation layer 23. When the extended first medium container 21 extends below the liquid surface, thermal expansion problems will occur. Therefore, a layer of the first heat insulation layer 23 can be coated on the outer side of the part of the first medium container 21 located in the measured container to reduce the heat transfer between the measured medium and the medium solution, which can effectively reduce the zero point error caused by temperature changes. The material of the heat insulation layer is preferably a heat-insulating carbon fiber material, especially a high-insulating carbon fiber material. A second medium container 24 is also arranged on the periphery of the first medium container 21. The second medium container 24 is close to the first heat insulation layer 23 of the first medium container 21. The second medium container 24 is an annular structure. The second medium container 24 is filled with a heat-conducting material. The heat-conducting material is used to transfer the temperature of the measured material to the insulation cavity. The temperature sensor 3 is connected to the second medium container 24, thereby indirectly obtaining the temperature in the measured container. The heat-conducting material can be a commonly used heat-conducting silicone grease in the art.

[0035] In one embodiment, each of the thermal insulation layers is made of thermal insulating carbon fiber material.

[0036] In one embodiment, the first medium container 21 and the diaphragm 22 are both made of stainless steel. The diaphragm 22 is welded to the first medium container 21 to achieve a sealing effect. The diaphragm 22 is preferably a thin steel sheet with sufficient strength and a certain deformation function so that the diaphragm 22 can be subjected to positive pressure and negative pressure, thereby forcing the medium in the first medium container 21 to flow and driving the reading of the instrument panel to change.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A pressure gauge device with a temperature sensor, characterized in that: The invention comprises a pressure gauge body, a pressure gauge mounting seat and a temperature sensor, wherein the pressure gauge mounting seat comprises a fixing seat and a connecting seat connected in sequence from top to bottom, the fixing seat is provided with a first inner cavity, the connecting seat is provided with a second inner cavity, the first inner cavity and the second inner cavity are communicated through a first vertically arranged through hole; the pressure gauge body comprises an instrument panel and a pressure sensor connected to the instrument panel, the instrument panel is installed in the first inner cavity of the fixing seat, the pressure sensor comprises a first medium container, a filling medium and a diaphragm, one end of the first medium container is connected to the instrument panel through the first through hole, the other end of the first medium container is connected to the diaphragm, the diaphragm seals the port of the first medium container, the temperature sensor is arranged in the connecting seat, the connecting seat is fixedly connected to the container to be measured, the first medium container is connected to the diaphragm One end of the sheet extends into the container to be measured; a vibration-damping connecting plate is arranged in the connecting seat; a swing block is arranged on the vibration-damping connecting plate; a second through hole is arranged on the vibration-damping connecting plate, and the first medium container passes through the second through hole; a buffer structure is arranged on the inner wall of the connecting seat, and the vibration-damping connecting plate is connected to the buffer structure; the buffer structure is hollow; a second thermal insulation layer is arranged at the connection between the connecting seat and the container to be measured; the outer surface of the part of the first medium container located in the container to be measured is covered with a first thermal insulation layer; the first thermal insulation layer and the second thermal insulation layer are both made of insulating carbon fiber materials; the materials of the first medium container and the diaphragm sheet are both stainless steel; a second medium container is also arranged on the periphery of the first medium container, the second medium container is annular, the second medium container is filled with heat-conducting material, and the temperature sensor is connected to the second medium container.

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