A pressure transmitter protection device
By designing a protective device for the pressure transmitter, the problem of rainwater erosion during outdoor installation is solved, ensuring the accuracy and stability of the pressure transmitter, providing convenient observation functions, extending service life and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Pressure transmitters at gas extraction sites are susceptible to erosion from rainwater when installed outdoors, affecting their accuracy and stability.
A pressure transmitter protection device was designed, comprising a transparent housing and an extended shell, which are fitted onto the pressure transmitter to prevent rainwater from entering. The device is secured by a limit pin and a bushing, and the housing is lined with heat insulation cotton to prevent direct sunlight.
It effectively prevents rainwater from entering the pressure transmitter, protecting its accuracy and stability, while not affecting the operator's observation, extending the device's service life and improving safety.
Smart Images

Figure CN224521327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure transmitters, and in particular to a pressure transmitter protection device. Background Technology
[0002] With the continuous advancement of informatization at natural gas extraction sites, a large number of pressure transmitters are being installed and used on-site. These pressure transmitters can better integrate with the Industrial Internet, enabling real-time data collection, analysis, and processing, and providing strong support for production decisions.
[0003] Currently, the pressure transmitters at gas extraction stations are all installed outdoors. During daily use, due to the aging of the sealing elements of the pressure transmitter, as well as damage to the seals or improper closure of the sealing end during routine maintenance and inspection, rainwater can enter the pressure transmitter, causing corrosion and damage to the internal components. This affects the accuracy and stability of the pressure transmitter, and can also lead to short circuits, thereby damaging the main board of the pressure transmitter.
[0004] Therefore, a technical solution is needed to address the problem that pressure transmitters at gas production sites are installed outdoors and are easily corroded by rainwater, affecting their accuracy and stability. Utility Model Content
[0005] The purpose of this invention is to overcome the technical problem that pressure transmitters at gas production sites are installed outdoors and are easily corroded by rainwater, affecting the accuracy and stability of the pressure transmitters, and to provide a pressure transmitter protection device.
[0006] This utility model provides a pressure transmitter protection device, including a box with an opening at one end, and pipeline avoidance ports on both sides of the box, the pipeline avoidance ports extending to the opening, and the box being a transparent structural component.
[0007] This utility model discloses a pressure transmitter protection device. In use, the box is placed with the open side facing down, and the box is fitted onto the pressure transmitter through the opening at the bottom. The explosion-proof flexible tubes on both sides of the pressure transmitter extend through the pipeline avoidance openings on both sides of the box, thus realizing the installation of the box on the pressure transmitter. The box protects the pressure transmitter from rainwater, preventing it from affecting the accuracy and stability of the pressure transmitter. At the same time, the box, made of transparent material, does not obstruct the view, making it convenient for operators to observe the data and operating status of the pressure transmitter.
[0008] Preferably, the box body is provided with an extension shell on each side, the extension shell includes two limiting plates, a top plate is provided between the two limiting plates, the top plate and the two limiting plates form a U shape, and one end of the extension shell is connected to the edge of the pipeline avoidance opening.
[0009] Extended housings are added to both sides of the housing. The two extended housings are respectively fitted onto the explosion-proof flexible tubes on both sides of the pressure transmitter. The extended housings protect the pipeline avoidance openings on both sides of the housing, preventing rainwater from reaching the pressure transmitter through the pipeline avoidance openings.
[0010] Preferably, the limiting plate is provided with a limiting hole, and a limiting pin is detachably provided in the limiting hole.
[0011] The limiting pins pass through the limiting holes on the two limiting plates in sequence, enclosing the explosion-proof flexible tube inside the extension shell, thereby limiting the extension shell and the box body and preventing the protective device from falling off under the action of wind or other external forces.
[0012] Preferably, limit nuts are provided at both ends of the limit pin.
[0013] Two limit nuts respectively limit the two ends of the limit pin, so that the limit pin will not fall off after being installed in the limit hole.
[0014] Preferably, a bushing is provided on the inner wall of the limiting hole.
[0015] During the insertion and removal of the limiting pin in the limiting hole, the inner wall of the limiting hole is easily damaged, which in turn causes the limiting plate to break. This solution adds a bushing to the inner wall of the limiting hole, which protects the limiting edge and extends the service life of the protective device.
[0016] Preferably, the bushing is a structural component made of copper.
[0017] The copper bushing has sufficient strength and is not easily damaged during long-term use, providing good protection for the limit plate. At the same time, the copper bolts will not generate sparks when they come into contact with the copper bushing, which is more conducive to the safe production of natural gas.
[0018] Preferably, the number of limiting holes is several, and the several limiting holes are arranged along the height direction of the limiting plate.
[0019] When the size or height of the explosion-proof flexible tubes on both sides of the pressure transmitter changes, limit pins can be installed by selecting limit holes of different heights, so that the limit pins can be installed close to the bottom of the explosion-proof flexible tubes, thereby making the limit pins play a better role in stabilizing the entire protective device.
[0020] Preferably, the box body is provided with a partition, and the partition and the top wall of the box body form an installation area, and the installation area is filled with heat insulation cotton.
[0021] Insulating cotton is placed on the top of the housing to prevent sunlight from shining directly onto the pressure transmitter through the transparent housing, while also blocking high temperatures and slowing down the aging rate of the pressure transmitter.
[0022] Preferably, the box body is provided with a handle on the top.
[0023] The handle makes it easy to lift or lower the housing, making it easier to install and remove from the pressure transmitter.
[0024] Preferably, the box body is a PVC structural component or a PMMA structural component.
[0025] PVC housings offer excellent chemical stability, corrosion resistance, high hardness, high strength, UV protection, fire resistance, flame retardancy, and reliable insulation, making them particularly suitable for the chemical industry. They also feature a smooth, flat surface that is non-absorbent, non-deformable, and easy to process. PMMA housings, on the other hand, offer high transparency and structural strength, ensuring protection for the pressure transmitter while allowing clear external observation of the transmitter's data.
[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0027] 1. This utility model provides a pressure transmitter protection device, which can prevent rainwater from entering the pressure transmitter and affecting its accuracy and stability by detachably installing a housing on the pressure transmitter.
[0028] 2. This utility model provides a pressure transmitter protection device. By setting a transparent box on the pressure transmitter, it can prevent rainwater from entering without obstructing the view of the operator, making it convenient for staff to observe the data and operating status of the pressure transmitter. Attached Figure Description
[0029] Figure 1 This is a front view of a pressure transmitter protection device according to this utility model;
[0030] Figure 2 This is a top view of a pressure transmitter protection device according to this utility model;
[0031] Figure 3 This is an isometric view of the box body described in this utility model;
[0032] Figure 4 This is a schematic diagram of the internal structure of the box body of this utility model;
[0033] Figure 5 This is an isometric view of the extended housing described in this utility model;
[0034] Figure 6 This is a diagram showing the usage status of a pressure transmitter protection device according to this utility model;
[0035] Marked in the image:
[0036] 1-Box body, 11-Opening, 12-Pipeline clearance opening, 13-Partition plate, 14-Insulation cotton, 15-Handle, 2-Extended housing, 21-Limiting plate, 211-Limiting hole, 212-Limiting pin, 213-Limiting nut, 214-Bushing, 22-Top plate, 3-Pressure transmitter, 31-Explosion-proof flexible tube. Detailed Implementation
[0037] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0038] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0039] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0040] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0041] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0042] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0043] Example 1
[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a pressure transmitter protection device includes a housing 1 with an opening 11 at one end, and pipeline avoidance ports 12 on both sides of the housing 1, the pipeline avoidance ports 12 extending through the opening 11, and the housing 1 being a transparent structural component.
[0045] In use, the box 1 with its opening 11 facing downwards is fitted onto the pressure transmitter 3 through the lower opening 11. The explosion-proof flexible tubes 31 on both sides of the pressure transmitter 3 extend through the pipeline avoidance ports 12 on both sides of the box 1, thus realizing the installation of the box 1 on the pressure transmitter 3. The box 1 acts as a shield for the pressure transmitter 3, preventing rainwater from entering the pressure transmitter 3 and affecting its accuracy and stability. At the same time, the box 1, made of transparent material, will not obstruct the view of the operator, making it convenient for staff to observe the data and operating status on the pressure transmitter 3.
[0046] Box 1: Box 1 has a handle 15 on the top, which makes it easy to lift or lower the box 1, making it easier to install and remove the box 1 from the pressure transmitter 3. Box 1 is made of PVC or PMMA. Box 1 made of PVC material has good chemical stability, corrosion resistance, high hardness, high strength, UV resistance, fire resistance and flame retardancy, and reliable insulation performance. It is particularly suitable for the chemical industry. Moreover, the surface is smooth and flat, does not absorb water, does not deform, and is easy to process. Box 1 made of PMMA material has high transparency and structural strength, which can protect the pressure transmitter 3 and also allow the data of the pressure transmitter 3 inside the box 1 to be clearly observed from the outside.
[0047] Example 2
[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, the difference from embodiment 1 is that the box body 1 is provided with an extension shell 2 on both sides. The extension shell 2 includes two limiting plates 21. A top plate 22 is provided between the two limiting plates 21. The top plate 22 and the two limiting plates 21 are arranged to form a U shape. One end of the extension shell 2 is connected to the edge of the pipeline avoidance opening (12).
[0049] In this embodiment, extension housings 2 are added to both sides of the housing 1. The two extension housings 2 are respectively fitted onto the explosion-proof flexible tubes 31 on both sides of the pressure transmitter 3. The extension housings 2 protect the pipeline avoidance ports 12 on both sides of the housing 1, preventing rainwater from reaching the pressure transmitter 3 through the pipeline avoidance ports 12.
[0050] Example 3
[0051] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the difference from embodiment 2 is that the limiting plate 21 is provided with a limiting hole 211, and the limiting hole 211 is provided with a detachable limiting pin 212.
[0052] In this embodiment, the limiting pin 212 passes through the limiting holes 211 on the two limiting plates 21 in sequence, and encloses the explosion-proof flexible tube 31 in the extension shell 2, thereby limiting the extension shell 2 and the box 1 and preventing the protective device from falling off under the action of wind or other external forces.
[0053] Furthermore, limit nuts 213 are provided at both ends of the limit pin 212. The two limit nuts 213 limit the two ends of the limit pin 212 respectively, so that the limit pin 212 will not fall off after being installed in the limit hole 211.
[0054] Furthermore, a bushing 214 is provided on the inner wall of the limiting hole 211. During the insertion and removal of the limiting pin 212 in the limiting hole 211, the inner wall of the limiting hole 211 is easily damaged, which in turn causes the limiting plate 21 to break. This solution adds a bushing 214 to the inner wall of the limiting hole 211, which protects the limiting edge and extends the service life of the protective device. The bushing 214 is a copper structural component. The copper bushing 214 has sufficient strength and is not easily damaged during long-term use, which plays a good protective role for the limiting plate 21. At the same time, the copper bolt will not generate sparks when it comes into contact with the copper bushing 214, which is more conducive to the safe production of natural gas.
[0055] Furthermore, there are several limiting holes 211 arranged along the height direction of the limiting plate 21. Limiting pins 212 can be installed by selecting limiting holes 211 of different heights, so that the limiting pins 212 can be installed close to the bottom of the explosion-proof flexible tube 31, thereby making the limiting pins 212 play a better stabilizing role for the entire protective device.
[0056] Example 4
[0057] like Figure 1 and Figure 4 As shown, in this embodiment, the difference from embodiment 1 is that a partition 13 is provided inside the box body 1, and an installation interval is formed between the partition 13 and the inner top wall of the box body 1, and the installation interval is filled with heat insulation cotton 14.
[0058] In this embodiment, heat insulation cotton 14 is provided on the top of the box 1, which can prevent sunlight from shining directly on the pressure transmitter 3 through the transparent box 1, and at the same time block high temperature and slow down the aging rate of the pressure transmitter 3.
[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pressure transmitter guard, comprising: The box (1) includes a box body (1) with an opening (11) at one end, and pipeline avoidance openings (12) are provided on both sides of the box body (1). The pipeline avoidance openings (12) extend through the opening (11). The box body (1) is a transparent structural component.
2. A pressure transmitter guard according to claim 1, wherein, The box body (1) is provided with an extension shell (2) on both sides. The extension shell (2) includes two limiting plates (21). A top plate (22) is provided between the two limiting plates (21). The top plate (22) and the two limiting plates (21) form a U-shape. One end of the extension shell (2) is connected to the edge of the pipeline avoidance opening (12).
3. A pressure transmitter guard according to claim 2, wherein, The limiting plate (21) is provided with a limiting hole (211), and a limiting pin (212) is detachably provided in the limiting hole (211).
4. A pressure transmitter guard according to claim 3, wherein, Limiting nuts (213) are respectively provided at both ends of the limiting pin (212).
5. A pressure transmitter guard according to claim 3, wherein, A bushing (214) is provided on the inner wall of the limiting hole (211).
6. A pressure transmitter guard according to claim 5, wherein, The bushing (214) is a structural component made of copper.
7. A pressure transmitter guard according to claim 3, wherein, The number of the limiting holes (211) is several, and the several limiting holes (211) are arranged along the height direction of the limiting plate (21).
8. A pressure transmitter protection device according to any one of claims 1 to 7, wherein, The box (1) is provided with a partition (13), and an installation interval is formed between the partition (13) and the inner top wall of the box (1). The installation interval is filled with heat insulation cotton (14).
9. A pressure transmitter protection device according to any one of claims 1 to 7, wherein, The box (1) is provided with a handle (15) on the top.
10. A pressure transmitter protection device according to any one of claims 1 to 7, wherein, The box body (1) is a PVC structural component or a PMMA structural component.