Pressure transmitter for oil exploitation
By setting up a closure at the through-wire and using a combined structure of a wire barrel, an inner cylinder, a sealing sleeve and a rubber pad, the water seepage and damage problems at the wire connection are solved, and a better protective effect is achieved.
Patent Information
- Application Number
- CN202422510852.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-17
AI Technical Summary
The wire connections of existing oil-opening pressure transmitters are easily subject to rainwater and humid gases, resulting in internal wet damage and failure, and the outer skin of the wire is prone to damage under strong winds or accidental touch.
A closure is provided at the lead through the wire, including a screw tube, an inner tube, a sealing sleeve and a rubber pad, which achieves double seal protection through threaded connections to prevent rainwater and humid gas from entering, and protect the lead when it is accidentally touched or shaken.
The double seal of the wire is achieved to prevent rainwater and humid gas from infiltration, avoid damage to the outer skin of the wire, and improve the protective effect of the equipment.
Smart Images
Figure CN223166258U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure transmitters, and particularly relates to a pressure transmitter for oil extraction. Background Technique
[0002] The main function of the pressure transmitter used in the oil field is to convert the pressure signal in pipelines and equipment into an electrical signal for real-time monitoring and control. Specifically, the pressure transmitter can measure and monitor high-pressure and high-temperature environments in the oil field with high precision and high stability, convert the pressure change into a standard current or voltage signal, and transmit it to the control room or monitoring system. In this way, the staff can grasp the operating status of equipment and pipelines in real time, take timely measures to ensure production safety and stability, and avoid energy waste and equipment failures. At the same time, the pressure transmitter can also be integrated with other equipment to achieve automatic control and protection in case of emergencies.
[0003] A wire is connected to its tail end. The function of this wire is to transmit the pressure signal from the measured pressure system to the pressure transmitter, and then transmit the electrical signal output by the pressure transmitter to devices such as a controller or a display. Specifically, the wire is first responsible for receiving the pressure signal from the measured pressure system. This signal is converted into an electrical signal by the sensitive element (such as a metal diaphragm or a piezoelectric crystal) of the pressure transmitter. Then, this electrical signal is transmitted to devices such as a controller, a data acquisition system, or a display through the wire for the staff to conduct real-time monitoring, recording, and analysis.
[0004] The inventor found the following problems in the prior art that have not been well solved during the implementation of this solution: The wire passes through the transmitter housing and is inserted into the internal installation chamber to connect with the internal connection point. Therefore, there is a wire hole at the penetration point of the housing and the wire. However, the inner diameter of the traditional housing wire hole is often larger than the outer diameter of the wire. To avoid a large amount of rainwater seeping into the housing interior from the gap when used outdoors, a sleeve is generally set outside the wire hole. The wire first passes through the sleeve and then through the wire hole, and then rainwater intrusion can be avoided. However, in continuous rainy weather, the air becomes particularly humid, and the humid air will seep in from the gap, still causing unnecessary wet damage failures inside. Summary of the Utility Model
[0005] The main purpose of the present utility model is to provide a pressure transmitter for oil extraction, which can effectively solve the problems in the background technique.
[0006] To achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0007] A pressure transmitter for oil exploitation, comprising a transmitter. One side of the end of the transmitter is provided with a wire hole, and a closer is arranged at the position of the wire hole of the transmitter. The closer comprises a wire cylinder, an inner cylinder is fixed inside the wire cylinder, an annular groove is formed in the inner wall of the inner cylinder, a sealing rubber sleeve is embedded in the annular groove, a plurality of strip-shaped pressing plates are equidistantly arranged at equal intervals in a circular array on the side wall of the wire cylinder far away from the transmitter, rubber pads are bonded to the inner walls of the strip-shaped pressing plates, thread teeth are arranged on the outer walls of the strip-shaped pressing plates and the outer wall of the wire cylinder, and a limiting nut is sleeved outside the wire cylinder.
[0008] Preferably, the distance dimension between the inner walls on both sides of the annular groove matches the distance dimension between the outer walls on both sides of the sealing rubber sleeve, and the sealing rubber sleeve is bonded in the annular groove.
[0009] Preferably, funnel-shaped grooves are formed at both ends of the inner cylinder at the position of the annular groove.
[0010] Preferably, the inner diameter dimension of the sealing rubber sleeve is smaller than the inner diameter dimension of the funnel-shaped groove at the end close to the annular groove.
[0011] Preferably, the limiting nut is threadedly connected to the thread teeth on the outer walls of the wire cylinder and the strip-shaped pressing plate respectively.
[0012] Preferably, the width dimension of the rubber pad at the end far away from the strip-shaped pressing plate is larger than the width dimension of the end close to the strip-shaped pressing plate.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The closer arranged at the wire hole can carry out double sealing protection when the wire penetrates through it and the wire hole, not only avoiding the infiltration of rainwater and humid gas, but also avoiding the situation that the wire outer skin is damaged due to repeated shaking and bending in case of strong wind or accidental touch, and can play a good protective role for the wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic structural diagram of a pressure transmitter for oil exploitation of the utility model;
[0016] Figure 2 It is a schematic structural diagram of the wire hole position of a pressure transmitter for oil exploitation of the utility model;
[0017] Figure 3 It is a schematic separation structural diagram of a wire cylinder and an inner cylinder of a pressure transmitter for oil exploitation of the utility model after being sectioned and the sealing rubber sleeve;
[0018] Figure 4 It is a schematic structural diagram between a strip-shaped pressing plate and a rubber pad of a pressure transmitter for oil exploitation of the utility model.
[0019] In the figure: 1. Transmitter; 11. Wire hole; 2. Closer; 21. Wire cylinder; 211. Inner cylinder; 212. Funnel-shaped groove; 213. Annular groove; 214. Sealing rubber sleeve; 22. Limit nut; 23. Strip-shaped pressing plate; 24. Rubber pad; 25. Threaded teeth. Specific implementation mode
[0020] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.
[0021] As Figures 1-4 shown, a pressure transmitter for oil extraction includes a transmitter 1. A wire hole 11 is drilled on one side of the end of the transmitter 1. A closer 2 is provided at the position of the wire hole 11 of the transmitter 1. The closer 2 includes a wire cylinder 21. An inner cylinder 211 is fixed inside the wire cylinder 21. An annular groove 213 is drilled on the inner wall of the inner cylinder 211. A sealing rubber sleeve 214 is embedded inside the annular groove 213. A plurality of strip-shaped pressing plates 23 are equidistantly arranged on the side wall of the wire cylinder 21 far from the transmitter 1 in a circular array. Rubber pads 24 are bonded to the inner walls of the strip-shaped pressing plates 23. Threaded teeth 25 are provided on the outer walls of the strip-shaped pressing plates 23 and the outer wall of the wire cylinder 21. A limit nut 22 is sleeved outside the wire cylinder 21.
[0022] Specifically, the distance dimension between the two inner walls of the annular groove 213 matches the distance dimension between the two outer walls of the sealing rubber sleeve 214, and the sealing rubber sleeve 214 is bonded in the annular groove 213.
[0023] Specifically, funnel-shaped grooves 212 are drilled at both ends of the inner cylinder 211 at the position of the annular groove 213. The inner diameter dimension of the sealing rubber sleeve 214 is smaller than the inner diameter dimension of the funnel-shaped groove 212 near the annular groove 213, so as to avoid the contact between the inner end and the outer wall of the wire, achieving a protective effect.
[0024] Specifically, the limit nut 22 is threadedly connected to the threaded teeth 25 on the outer walls of the wire cylinder 21 and the strip-shaped pressing plate 23 respectively, which plays a role in inwardly retracting the strip-shaped pressing plate 23, so that the rubber pad 24 closely fits the outer skin of the wire after inward retraction.
[0025] Specifically, the width dimension of the end of the rubber pad 24 far from the strip-shaped pressing plate 23 is larger than the width dimension of its end near the strip-shaped pressing plate 23, forming a "convex" shape, which can prevent rainwater and humid gas from entering the inside of the wire cylinder 21.
[0026] Working principle:
[0027] The wire passes through several rubber gaskets 24 and then penetrates the sealing rubber sleeve 214 inside the wire barrel 21, and then passes through the wire hole 11 and is connected to the inside of the transmitter 1. The inner diameter size of the sealing rubber sleeve 214 needs to match the outer diameter size of the wire, which is the first sealing protection. After the wire and the transmitter 1 are connected, the limit nut 22 rotates and moves between the wire barrel 21 and several strip-shaped pressing plates 23, and is threadedly connected to the thread teeth 25 on the outer walls of both. After the limit nut 22 is threadedly connected to the strip-shaped pressing plate 23, an internal extrusion is formed, causing the rubber gasket 24 to contract inward and tightly press against the outer wall of the wire. Moreover, the special convex shape can contact the side wall of the adjacent rubber gasket 24 after inward contraction. Since the ends of the adjacent rubber gaskets 24 away from the strip-shaped pressing plate 23 are in contact, it is very difficult for external rainwater and humid gas to penetrate into the wire barrel 21. Coupled with the provided sealing rubber sleeve 214, a double sealing protection is achieved, not only avoiding the penetration of rainwater and humid gas, but also avoiding the situation of wire outer skin damage due to repeated shaking and bending in the case of strong wind or accidental touch, and can play a good protective role for the wire.
[0028] The circuits, electronic components and control modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.
[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A pressure transmitter for oil exploitation, comprising a transmitter (1), characterized in that: One side of the end of the transmitter (1) is provided with a wire hole (11). A closer (2) is provided at the position of the wire hole (11) of the transmitter (1). The closer (2) includes a wire cylinder (21). An inner cylinder (211) is fixed inside the wire cylinder (21). An annular groove (213) is formed in the inner wall of the inner cylinder (211). A sealing rubber sleeve (214) is embedded in the annular groove (213). A plurality of strip-shaped pressing plates (23) are equidistantly arranged at equal intervals in a circular array on the side wall of the wire cylinder (21) away from the transmitter (1). Rubber pads (24) are bonded to the inner walls of the strip-shaped pressing plates (23). Thread teeth (25) are provided on the outer walls of the strip-shaped pressing plates (23) and the outer wall of the wire cylinder (21). A limit nut (22) is sleeved outside the wire cylinder (21).
2. The pressure transmitter for oil extraction according to claim 1, characterized in that: The distance dimension between the inner walls on both sides of the annular groove (213) matches the distance dimension between the outer walls on both sides of the sealing rubber sleeve (214). The sealing rubber sleeve (214) is bonded in the annular groove (213).
3. The pressure transmitter for oil extraction according to claim 1, characterized in that: Funnel-shaped grooves (212) are formed at both ends of the inner cylinder (211) at the position of the annular groove (213).
4. The pressure transmitter for oil extraction according to claim 2, characterized in that: The inner diameter dimension of the sealing rubber sleeve (214) is smaller than the inner diameter dimension of the funnel-shaped groove (212) at the end close to the annular groove (213).
5. A pressure transmitter for oil extraction according to claim 1, characterized in that: The limit nut (22) is threadedly connected to the thread teeth (25) on the outer walls of the wire cylinder (21) and the strip-shaped pressing plates (23) respectively.
6. The pressure transmitter for oil extraction according to claim 1, characterized in that: The width dimension of the rubber pad (24) at the end away from the strip-shaped pressing plate (23) is larger than the width dimension of the end close to the strip-shaped pressing plate (23).