Anti-vibration temperature transmitter

Abstract

The utility model provides an anti-vibration temperature transmitter, and aims to solve the technical problem that measuring components of a conventional temperature transmitter are damaged due to high-frequency vibration of a unit. The temperature transmitter comprises a protection tube, one end of the protection tube is closed, the other end of the protection tube is open, the open end of the protection tube is provided with a connecting piece, and the connecting piece can be connected with tested equipment; the detection element is of a long-strip-shaped structure and is located in the protection pipe, and the detection element is connected with the interior of the connecting piece; the plurality of elastic sheets are arranged between the detection element and the protection tube; one end of the wire is electrically connected with the detection element, and the other end of the wire penetrates out of the connecting piece; and the meter head is electrically connected with the other end of the wire. The elastic sheet counteracts the vibration transmitted to the detection element by the protection tube and the connecting piece, and provides enough buffer for the detection element, thereby preventing the detection element from being damaged due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of temperature monitoring technology, and specifically to a vibration-resistant temperature transmitter. Background Technology

[0002] Currently, industrial temperature transmitters (temperature sensors) are widely used in various compressors, including reciprocating, centrifugal, and screw compressors. Different types of compressors have temperature transmitters installed at different monitoring points, mainly concentrated in key components such as cylinders, exhaust ports, lubrication systems, and cooling systems.

[0003] However, the temperature transmitters currently used in the units are all integrated designs. Due to the high-frequency vibrations during unit operation, the measuring components of the temperature transmitter may be damaged, leading to temperature fluctuations or abnormal displays, and ultimately causing the shutdown of important units, seriously affecting the stable operation of the plant. Utility Model Content

[0004] To address the technical problem that existing temperature transmitters can damage measuring components due to high-frequency vibrations of the unit, this utility model provides a vibration-resistant temperature transmitter. By setting multiple springs between the sensing element and the inner wall of the protective tube, the springs can offset the vibrations transmitted to the sensing element by the protective tube and connectors, providing sufficient buffering for the sensing element and thus preventing damage to the sensing element due to vibration.

[0005] The technical solution of this utility model is:

[0006] A vibration-resistant temperature transmitter includes:

[0007] A protective tube is closed at one end and open at the other end. A connector is provided at the open end of the protective tube, which can be connected to the device under test.

[0008] The detection element is a long strip structure and is located inside the protective tube. The detection element is internally connected to the connector.

[0009] Multiple spring clips are disposed between the detection element and the protective tube;

[0010] A wire, one end of which is electrically connected to the detection element, and the other end of which passes through the connector;

[0011] The meter head is electrically connected to the other end of the wire.

[0012] Optionally, it also includes:

[0013] A support tube, one end of which is detachably connected to the connector, and the inner wall of the support tube is movably connected to the end of the detection element;

[0014] One end of the wire passes through the support tube, and the end of the wire is fixedly connected to the support tube.

[0015] Optionally, it also includes:

[0016] A spring is disposed inside the support tube, with one end of the spring abutting against one end of the detection element;

[0017] A positioning element is connected to the end of the support tube furthest from the connector;

[0018] The wire passes through the positioning element and the spring, and the wire is fixedly connected to the positioning element.

[0019] Optionally, the spring is an arc-shaped structure, with multiple springs surrounding the end of the detection element and capable of contacting the end inside the protective tube.

[0020] Optionally, the projection of the spring on the protective tube is linear and coincides with the length direction of the detection element.

[0021] Optionally, one end of the support tube has a hollow stud structure, the connector has a threaded hole that matches the hollow stud, and the hollow stud is also fitted with an anti-loosening washer.

[0022] Optionally, a protective spring is provided at the connection between the conductor and the support tube.

[0023] Optionally, a plurality of the spring pieces are distributed along the length direction of the detection element.

[0024] Optionally, the detection element is a platinum resistance thermometer.

[0025] Optionally, the connector is a flange.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] By setting multiple springs between the detection element and the inner wall of the protective tube, the vibration transmitted to the detection element by the protective tube and connector is offset by the springs, providing sufficient buffer for the detection element and thus preventing the detection element from being damaged by vibration. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model; Detailed Implementation

[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0031] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] Example:

[0034] See Figure 1 This embodiment discloses a vibration-resistant temperature transmitter, including a protective tube 10, a sensing element 20, a spring 30, a lead wire 40, and a meter 50. One end of the protective tube 10 is closed, and the other end is open. A connector 60, which is a flange, is installed on the open end of the protective tube 10. The connector 60 has a through hole aligned with the opening on the protective tube 10. The connector 60 can be connected to the device under test.

[0035] The detection element 20 is a platinum resistance thermometer, elongated in shape, and suspended inside the protective tube 10. Therefore, there is a gap between the detection element 20 and the inner wall of the protective tube 10. In the prior art, because the detection element 20 is suspended inside the protective tube 10, the vibration of the unit during operation is transmitted to the detection element 20, amplifying the amplitude at the end of the detection element 20. This causes the end of the detection element 20 to come into contact with the inner wall of the protective tube 10, resulting in damage to the end of the detection element 20.

[0036] In this application, to avoid contact between the detection element 20 and the inner wall of the protective tube 10, a plurality of spring pieces 30 are provided in the gap between the detection element 20 and the protective tube 10. The plurality of spring pieces 30 are distributed along the length direction of the detection element 20. The spring pieces 30 separate the detection element 20 from the inner wall of the protective tube 10, thereby protecting the detection element 20. At the same time, the spring pieces 30 have a certain elasticity, which can provide a certain buffering effect for the vibration of the detection element 20 and avoid damage to the elastic detection element 20 by the rigid structure.

[0037] The connector 60 is located at the end of the protective tube 10, and the end of the sensing element 20 is located on the connector 60. One end of the wire 40 is electrically connected to the end of the sensing element 20, and the wire 40 passes through the connector 60. The wire 40 is made of a soft material, such as copper wire wrapped in plastic. The meter head 50 is electrically connected to the other end of the wire 40. After the connector 60 is connected to the device under test, the meter head 50 can be installed in a vibration-free position using other supports or other structures.

[0038] In this embodiment, the spring 30 first acts as a buffer to protect the detection element 20. Then, a flexible wire 40 is used, the length of which is selected according to the field usage. The meter head 50 and the connector 60 are designed as separate structures. Compared with the existing integrated temperature transmitter, this design can ensure the stability of the wiring terminals and prevent the wiring terminals from becoming loose.

[0039] In one specific embodiment:

[0040] The vibration-resistant temperature transmitter also includes a support tube 70, one end of which is provided with a hollow stud structure. A threaded hole is provided on the connector 60, and the hollow stud can match the threaded hole to make the connector 60 and the support tube 70 stably connected.

[0041] The inner diameter of the support tube 70 is equal to the outer diameter of the detection element 20, and the inner wall of the support tube 70 is movably connected to the end of the detection element 20, so that the detection element 20 can slide along its axial direction within the support tube 70.

[0042] The aforementioned wire 40 passes through the end of the support tube 70 away from the connector 60, and the wire 40 is fixedly connected to the end of the support tube 70 away from the connector 60.

[0043] In this embodiment, the support tube 70 is mounted on the detection element 20. When installing the detection element 20 into the protective tube 10, it is only necessary to match the hollow stud on the support tube 70 with the threaded hole on the connector 60. By setting the support tube 70, the installation of the detection element 20 is greatly simplified.

[0044] In another specific embodiment:

[0045] The vibration-resistant temperature transmitter also includes a spring 80 and a positioning element 90, wherein the end of the sensing element 20 is located in the middle of the support tube 70, and the wire 40 has a section inside the support tube 70.

[0046] Therefore, during the use of this temperature transmitter, because the sensing element 20 and the support tube 70 are slidably connected, the end of the sensing element 20 collides with the end of the support tube 70 away from the connector 60 under the action of vibration.

[0047] To avoid damage to the end of the detection element 20, a spring 80 is installed inside the support tube 70, with the two ends of the spring 80 abutting against the end of the detection element 20 and the end of the support tube 70, respectively. Thus, during vibration, the spring 80 can support and buffer the end of the detection element 20.

[0048] Furthermore, the aforementioned positioning member 90 is installed on the end of the support tube 70 away from the connector 60, and the end of the aforementioned wire 40 passes through the positioning member 90 and the spring 80 and is electrically connected to the detection element 20. The wire 40 is fixedly connected to the positioning member 90.

[0049] Generally, the positioning element 90 is provided with a threaded hole, and the end of the support tube 70 is provided with a stud to match it, thereby realizing the connection between the positioning element 90 and the support tube 70, and at the same time facilitating the installation of the spring 80.

[0050] Preferably, since the detection element 20 is slidably disposed within the support tube 70, there is a risk that the end of the detection element 20 away from the support tube 70 may collide with the protective tube 10. Therefore, the spring 30 is set as an arc-shaped structure, and multiple springs 30 are provided at the end of the detection element 20, and all the springs 30 at the end of the detection element 20 are arranged in a circular pattern, so that the end of the detection element 20 can contact the end inside the protective tube 10.

[0051] This technical solution enables a certain distance to be maintained between the end of the detection element 20 and the end of the protective tube 10, thereby protecting the detection element 20.

[0052] Generally, the projection of the spring 30 onto the protective tube 10 is a straight line and is consistent with the length direction of the detection element 20, so the buffering and protective functions of the spring 30 are most obvious.

[0053] In another specific embodiment:

[0054] The hollow stud at the end of the aforementioned support tube 70 is also fitted with an anti-loosening washer 71. By setting the anti-loosening washer 71, the stability of the support tube 70 and the connector 60 can be strengthened, and the problem of the support tube 70 and the connector 60 becoming loose during long-term vibration can be avoided.

[0055] In another specific embodiment:

[0056] A protective spring 41 is provided at the connection between the conductor 40 and the support tube 70. The protective spring 41 is sleeved on the conductor 40. By setting the protective spring 41, the connection between the conductor 40 and the support tube 70 is protected, and the conductor 40 is prevented from bending at too large an angle, which would cause the conductor 40 to break.

[0057] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A vibration-resistant temperature transmitter, characterized in that, include: A protective tube is closed at one end and open at the other end. A connector is provided at the open end of the protective tube, which can be connected to the device under test. The detection element is a long strip structure and is located inside the protective tube. The detection element is internally connected to the connector. Multiple spring clips are disposed between the detection element and the protective tube; A wire, one end of which is electrically connected to the detection element, and the other end of which passes through the connector; The meter head is electrically connected to the other end of the wire.

2. The vibration-resistant temperature transmitter according to claim 1, characterized in that, Also includes: A support tube, one end of which is detachably connected to the connector, and the inner wall of the support tube is movably connected to the end of the detection element; One end of the wire passes through the support tube, and the end of the wire is fixedly connected to the support tube.

3. The vibration-resistant temperature transmitter according to claim 2, characterized in that, Also includes: A spring is disposed inside the support tube, with one end of the spring abutting against one end of the detection element; A positioning element is connected to the end of the support tube furthest from the connector; The wire passes through the positioning element and the spring, and the wire is fixedly connected to the positioning element.

4. The vibration-resistant temperature transmitter according to claim 3, characterized in that, The spring is an arc-shaped structure with multiple springs surrounding the end of the detection element and capable of contacting the end inside the protective tube.

5. The vibration-resistant temperature transmitter according to claim 4, characterized in that, The projection of the spring piece onto the protective tube is a long straight line, and it is consistent with the length direction of the detection element.

6. The vibration-resistant temperature transmitter according to claim 2, characterized in that, One end of the support tube has a hollow stud structure, the connector has a threaded hole that matches the hollow stud, and the hollow stud is also fitted with an anti-loosening washer.

7. The vibration-resistant temperature transmitter according to claim 2, characterized in that, A protective spring is provided at the connection between the conductor and the support tube.

8. The vibration-resistant temperature transmitter according to any one of claims 1-7, characterized in that, Multiple spring pieces are distributed along the length of the detection element.

9. The vibration-resistant temperature transmitter according to any one of claims 1-7, characterized in that, The detection element is a platinum resistance thermometer.

10. The vibration-resistant temperature transmitter according to any one of claims 1-7, characterized in that, The connecting component is a flange.

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