Mounting device for temperature sensor

Abstract

The utility model provides a mounting device for a temperature sensor, which comprises a protective sleeve and a base, the temperature sensor is arranged in the protective sleeve, part of the base is arranged in an opening formed in the top of an oil delivery pipe, a through hole is formed in the base, and the protective sleeve is inserted into the through hole and extends downwards into the oil delivery pipe. And the inner wall of the base is in threaded connection with the outer wall of a part of the protective sleeve. According to the utility model, the protective sleeve can be detached by screwing, so that the blockage inside the protective sleeve can be cleaned conveniently, the error between the temperature measured by the temperature sensor and the actual temperature is avoided, and the accuracy of temperature measurement is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of installation of temperature instruments for oilfield pipelines, and specifically relates to an installation device for a temperature sensor. Background Art

[0002] Temperature transmitters are usually installed on the oil well backpressure pipelines at the oil and gas production sites in oilfields to transmit temperature data to the oil well monitoring platform. Their main function is to monitor the production status of oil wells and analyze the production conditions of oil wells through changes in temperature and other parameters.

[0003] The protection sleeve is usually directly fixed to the oil pipeline by welding, and the temperature transmitter is inserted into the jack of the protection sleeve. In continuous sandy weather, the jack of the protection sleeve is blocked, and since the protection sleeve cannot be disassembled, the blockage inside it cannot be cleaned, resulting in the temperature transmitter probe not being able to be inserted to the predetermined depth in the jack, and thus there is generally a large error between the monitored temperature and the actual temperature. Summary of the Utility Model

[0004] An object of the utility model is to provide an installation device for a temperature sensor, which can disassemble the protection sleeve by screwing, facilitating the cleaning of the blockage inside the protection sleeve, avoiding errors between the temperature measured by the temperature sensor and the actual temperature, and improving the accuracy of temperature measurement.

[0005] According to the utility model, an installation device for a temperature sensor is provided, including: a protection sleeve and a base. A temperature sensor is arranged inside the protection sleeve. Part of the base is arranged in an opening formed at the top of the oil pipeline, and a through port is configured inside the base. The protection sleeve is inserted into the inside of the through port and extends downward into the inside of the oil pipeline. The inner wall of the base is threadedly connected to the outer wall of part of the protection sleeve.

[0006] In a preferred embodiment, the inner wall of the base is provided with internal threads, and the outer wall of part of the protection sleeve is provided with external threads.

[0007] In a preferred embodiment, both the external threads and the internal threads adopt ZG3 / 4 inch taper pipe threads.

[0008] In a preferred embodiment, an external hexagon joint is fixedly sleeved on the outer wall of the top of the protection sleeve.

[0009] In a preferred embodiment, an internal thread interface is arranged on the inner wall of the top of the protection sleeve, and the bottom of the internal thread interface is sealed with the connection head of the temperature sensor through a polytetrafluoroethylene gasket.

[0010] In a preferred embodiment, the specifications and dimensions of the protective sleeve are designed according to the length and outer diameter of the temperature sensor, and the inner diameter and wall thickness of the oil pipeline.

[0011] In a preferred embodiment, the length of the protective sleeve is 118 mm and the outer diameter is 18 mm. There is a jack inside the body of the protective sleeve, and the temperature sensor is arranged in the jack. The inner diameter of the jack is 12 mm and the length is 57 mm.

[0012] In a preferred embodiment, the inner diameter of the through port is greater than the outer diameter of the protective sleeve.

[0013] In a preferred embodiment, a part of the outer wall of the base is hermetically welded to the oil pipeline along the circumference of the opening.

[0014] In a preferred embodiment, the outer diameter of the base arranged inside the opening is smaller than the outer diameter of the base arranged outside the opening.

[0015] The utility model has at least the following technical effects:

[0016] According to the utility model, a base and a protective sleeve with a temperature sensor arranged inside are provided, and an opening is formed at the top of the oil pipeline. Since a part of the base is arranged inside the opening and the interior of the base is provided with a through port, the protective sleeve is inserted into the interior of the through port and extends downward into the interior of the oil pipeline, so that the temperature inside the oil pipeline can be measured by the temperature sensor inside the protective sleeve. Also, since the inner wall of the base and the outer wall of a part of the protective sleeve are connected by threads, on the one hand, the protective sleeve can be disassembled by screwing, which is convenient for cleaning the blockage inside the protective sleeve, and on the other hand, the depth of insertion of the protective sleeve into the oil pipeline can be adjusted to adjust the protective sleeve to a suitable depth inside the oil pipeline, improving the assembly efficiency while avoiding errors between the temperature measured by the temperature sensor and the actual temperature and improving the accuracy of temperature measurement. In addition, the inner wall of the base and the outer wall of a part of the protective sleeve are connected by threads, which also enables the protective sleeve described in the utility model to be reused, reducing the production cost.

[0017] According to the utility model, an internal thread interface is arranged on the inner wall of the top of the protective sleeve, and the bottom of the internal thread interface is sealed with the connector of the temperature sensor through a polytetrafluoroethylene gasket, so as to prevent sand and dust and rainwater from entering the jack of the protective sleeve.

[0018] According to the utility model, the external threads arranged on the outer wall of the protective sleeve and the internal threads arranged on the inner wall of the base both adopt ZG3 / 4-inch taper pipe threads, making the cooperation between the protective sleeve and the base simple, with good sealing effect and high pressure-bearing grade. Description of the Drawings

[0019] Figure 1 Schematically shown is a schematic diagram of the overall structure of an installation device for a temperature sensor according to an embodiment of the present invention.

[0020] In this application, all the drawings are schematic drawings, only used to illustrate the principle of the present invention and not drawn to actual scale. Detailed implementation manners

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention 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 thus cannot be construed as a limitation to the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to specific circumstances.

[0024] As Figure 1 shown, the installation device 100 for a temperature sensor according to the present invention includes: a protective sleeve 8 and a base 5. A temperature sensor (a component of a temperature transmitter) is arranged inside the protective sleeve 8. An opening a is provided at the top of the oil pipeline 10. The outer wall of a part of the base 5 is welded in the opening a, and the outer wall of the remaining part of the base 5 is located above the oil pipeline 10 and is arranged in the opening a. The outer diameter of the base 5 arranged in the opening a is smaller than the outer diameter of the base 5 arranged outside the opening a. A through port b is constructed inside the base 5. The protective sleeve 8 is inserted into the through port b and extends downward into the oil pipeline 10. The inner wall of the base 5 is threadedly connected to the outer wall of a part of the protective sleeve 8. A jack 9 is arranged inside the protective sleeve 8, and the temperature sensor is arranged in the jack 9.

[0025] According to the present utility model, a base 5 and a protective sleeve 8 with a temperature sensor disposed therein are provided. An opening a is formed at the top of the oil pipeline 10. Since a part of the base 5 is disposed within the opening a and a through port b is constructed inside the base 5, the protective sleeve 8 is inserted into the inside of the through port b and extends downward into the inside of the oil pipeline 10, so that the temperature inside the oil pipeline 10 can be measured by the temperature sensor inside the protective sleeve 8. Also, since the inner wall of the base 5 and the outer wall of a part of the protective sleeve 8 are connected by threads, on the one hand, the protective sleeve 8 can be disassembled by screwing for facilitating the cleaning of the blockage inside the protective sleeve, and on the other hand, the depth of insertion of the protective sleeve 8 into the oil pipeline 10 can be adjusted to adjust the protective sleeve 8 to an appropriate depth inside the oil pipeline 10 (for example, the bottom end of the protective sleeve 8 is at the center of the oil pipeline 10 and the temperature sensor inside the protective sleeve 8 is at 1 / 3 - 1 / 2 of the internal height of the oil pipeline 10), which can improve the assembly efficiency while avoiding errors between the temperature measured by the temperature sensor and the actual temperature and improving the accuracy of temperature measurement. In addition, the inner wall of the base 5 and the outer wall of a part of the protective sleeve 8 are connected by threads, which also enables the protective sleeve 8 described in the present utility model to be reused, reducing the production cost.

[0026] In one or more embodiments, an internal thread 4 is provided on the inner wall of the base 5, and an external thread 7 is provided on the outer wall of a part of the protective sleeve 8.

[0027] In one or more embodiments, both the external thread provided on the outer wall of the protective sleeve 8 and the internal thread provided on the inner wall of the base 5 are ZG3 / 4 inch taper pipe threads.

[0028] According to the present utility model, both the external thread provided on the outer wall of the protective sleeve 8 and the internal thread provided on the inner wall of the base 5 are ZG3 / 4 inch taper pipe threads, which makes the fit between the protective sleeve 8 and the base 5 simple, with good sealing effect and high pressure-bearing grade.

[0029] In one or more embodiments, an external hexagon joint 1 is fixedly sleeved on the outer wall of the top of the protective sleeve 8.

[0030] According to the present utility model, an external hexagon joint 1 is fixedly sleeved on the outer wall of the top of the protective sleeve 8. By tightening the external hexagon joint 1 with a wrench, the protective sleeve 8 can be installed with the base 5, which can improve the installation efficiency and avoid the wrench acting directly on the protective sleeve 8 at the same time.

[0031] In one or more embodiments, an internal thread interface 2 is provided on the inner wall of the top of the protective sleeve 8, which is threadedly connected to the external thread interface on the temperature sensing connector for installing the temperature sensing inside the protective sleeve 8. In the present utility model, the bottom of the internal thread interface 2 is sealed with the connector of the temperature sensor through a polytetrafluoroethylene gasket 3. Optionally, the internal thread interface 2 of the protective sleeve 8 adopts an M27×2 ordinary thread to match the thread type and connection method of the temperature sensor connector at the production site.

[0032] According to the present utility model, an internal thread interface 2 is provided on the inner wall of the top of the protective sleeve 8, and the bottom of the internal thread interface 2 is sealed with the connector of the temperature sensor (not shown in the figure) through a polytetrafluoroethylene gasket 3, so as to prevent sand and dust and rainwater from entering the jack of the protective sleeve 8.

[0033] In one or more embodiments, the specification size of the protective sleeve 8 is designed according to the length and outer diameter of the temperature sensor, and the inner diameter and wall thickness of the oil pipeline 10. After the protective sleeve 8 is installed with the base 5, the bottom end of the protective sleeve 8 is approximately at the center line of the oil pipeline 10, and the sensor can reach 1 / 3 - 1 / 2 inside the pipeline.

[0034] In one or more embodiments, the length of the protective sleeve 8 is 118 mm, the outer diameter is 18 mm, the inner diameter of the jack 9 inside the protective sleeve 8 body is 12 mm, and the length of the jack 9 is 57 mm.

[0035] According to the present utility model, the length of the protective sleeve 8 is 118 mm, the outer diameter is 18 mm, the inner diameter of the jack 9 inside the protective sleeve 8 body is 12 mm, and the length of the jack 9 is 57 mm. Common temperature probes in the oil field can be smoothly inserted into the protective sleeve 8 and installed for use.

[0036] In one or more embodiments, the inner diameter of the through port b of the base 5 is larger than the outer diameter of the protective sleeve 8, so as to facilitate the insertion of the protective sleeve 8 into the oil pipeline 10.

[0037] In one or more embodiments, a part of the outer wall of the base 5 is circumferentially and hermetically welded to the oil pipeline 10 along the opening a, so that the welding of the base 5 and the oil pipeline 10 is more firm.

[0038] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mounting device for a temperature sensor, characterized in that: It includes: a protective sleeve and a base, wherein a temperature sensor is arranged inside the protective sleeve, a part of the base is arranged in an opening opened at the top of the oil pipeline, and a through hole is arranged inside the base, the protective sleeve is inserted into the through hole and extends downward into the interior of the oil pipeline, and the inner wall of the base is connected to the outer wall of a part of the protective sleeve by threads.

2. The mounting device for a temperature sensor according to claim 1, characterized in that: The inner wall of the base is provided with an internal thread, and the outer wall of part of the protective sleeve is provided with an external thread.

3. The mounting device for a temperature sensor according to claim 2, characterized in that: The external thread and the internal thread both adopt ZG3 / 4 inch tapered pipe thread.

4. The mounting device for a temperature sensor according to claim 1, characterized in that: The outer wall of the top of the protection sleeve is fixedly sleeved with an external hexagonal joint.

5. The mounting device for a temperature sensor according to claim 1, characterized in that: The inner wall of the top of the protection sleeve is provided with an internal thread interface, and the bottom of the internal thread interface is sealed with the connecting head of the temperature sensor through a polytetrafluoroethylene gasket.

6. The mounting device for a temperature sensor according to claim 1, characterized in that: The specifications and dimensions of the protective sleeve are designed according to the length and outer diameter of the temperature sensor, and the inner diameter and wall thickness of the oil pipeline.

7. The mounting device for a temperature sensor according to claim 6, characterized in that: The length of the protective sleeve is 118 mm, and the outer diameter is 18 mm. The body of the protective sleeve has a plug hole inside, and the temperature sensor is arranged in the plug hole. The inner diameter of the plug hole is 12 mm, and the length of the plug hole is 57 mm.

8. The mounting device for a temperature sensor according to claim 7, characterized in that: The inner diameter of the through opening is greater than the outer diameter of the protective sleeve.

9. The mounting device for a temperature sensor according to claim 1, characterized in that: Part of the outer wall of the base is sealed and welded to the oil pipeline along the circumference of the opening.

10. The mounting device for a temperature sensor according to claim 1, characterized in that: The outer diameter of the base disposed in the opening is smaller than the outer diameter of the base disposed outside the opening.

Images