Sensor sealing assembly

Abstract

The invention discloses a sensor sealing assembly. The technical problem that in the prior art, a sensor sealing assembly is poor in sealing effect is solved. The sensor sealing assembly comprises a fixing seat and a sensor sleeve. The fixed seat is mounted on pressure equipment to be tested and is used for assembling the sensor body; the fixed seat is provided with a measuring hole, and the measuring hole is communicated with a fluid channel in a pressure device to be measured. The sensor sleeve is detachably arranged on the fixed seat through the tensioning device, the direction of the pre-tightening force of the tensioning device is opposite to the direction of the fluid pressure at the measuring hole, the sensor sleeve is provided with a through hole, the sensor body is arranged in the sensor sleeve, and the detection end of the sensor body is located at the through hole. According to the sensor sealing assembly, the sensor body is arranged in the sensor sleeve, the sensor sleeve is detachably installed on the fixing base through the tensioning device, the end of the sensor sleeve and the detection end of the sensor body can be tightly attached to the fixing base, and the sealing effect of the sensor sealing assembly is guaranteed.

Description

Technical Field

[0001] The present application belongs to the field of sensor technology, and in particular relates to a sensor sealing assembly. Background Art

[0002] In the field of chemical fiber spinning technology, there are two common types of sealing structures for melt pressure sensors. One is to screw the sensor into the sensor seat through a thread; the sensor seat is welded in the spinning box, such as Figure 1 As shown, frequent disassembly of the sensor will damage the connecting thread between the sensor and the sensor seat, resulting in system pressure leakage. In addition, the sensor seat and the sensor need to be replaced together during maintenance, which results in high maintenance costs. Another method is to add a sensor sleeve between the sensor and the sensor seat; wherein the circumferential inner wall and the circumferential outer wall of the tubular sensor sleeve are both provided with threads, which are respectively used to connect the sensor seat and the sensor. Once the internal threads used to connect the sensor are damaged, the problem can be solved directly by replacing the sensor sleeve to reduce maintenance costs. However, once the melt pressure is too high, the melt pressure will have a great impact on the sensor, and it is difficult to ensure the sealing effect only by the threads. Therefore, inventing a sensor sealing assembly with a simple structure and good sealing effect is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a sensor sealing assembly to solve the technical problem of poor sealing effect of sensor sealing assemblies in the prior art.

[0004] The technical solution adopted to achieve the purpose of this application is:

[0005] A sensor sealing assembly, comprising:

[0006] A fixing seat, which is mounted on the pressure device to be tested and is used for assembling the sensor body; a measuring hole is provided on the fixing seat, and the measuring hole is communicated with a fluid passage in the pressure device to be tested;

[0007] A sensor sleeve, wherein the sensor sleeve is detachably arranged on the fixing seat by a tensioning device, the direction of the pre-tightening force generated by the tensioning device on the sensor sleeve is opposite to the direction of the fluid pressure at the measuring hole, the sensor sleeve is provided with a through hole connected to the measuring hole, the sensor body is arranged in the sensor sleeve, and the detection end of the sensor body is located at the through hole.

[0008] In order to better implement the present application, further optimization is made in the above structure, wherein the fixing seat includes a sensor seat and a sensor socket;

[0009] The sensor seat is mounted on the pressure device to be measured, and a slot is provided at one end of the sensor seat away from the fluid passage, and the measuring hole is provided in the slot;

[0010] The sensor socket is a tubular structure with two ends open, and the fixed end of the sensor socket is inserted into the notch of the slot;

[0011] The connecting end of the sensor sleeve is inserted into the sensor socket and abuts against the slot, and the sensor socket is connected to the sensor socket through the tensioning device.

[0012] In order to better implement the present application, the above structure is further optimized, and the outer side wall of the sensor socket is provided with a first tightening portion, and the first tightening portion is provided close to the movable end of the sensor socket;

[0013] The outer side wall of the sensor sleeve is provided with a second tightening portion, and the second tightening portion is provided close to the movable end of the sensor sleeve;

[0014] The tensioning device connects the first tensioning part and the second tensioning part to achieve the connection between the sensor socket and the sensor sleeve.

[0015] In order to better implement the present application, further optimization is made in the above structure, wherein the tensioning device is a tensioning bolt;

[0016] The first tensioning portion is provided with a bolt hole;

[0017] The second tensioning portion is provided with a through hole at a position corresponding to the bolt hole, and the connecting end of the tensioning device passes through the through hole and is connected to the bolt hole, thereby realizing the connection between the sensor socket and the sensor sleeve.

[0018] In order to better implement the present application, further optimization is made in the above structure, whereby the number of the tensioning devices is multiple, and the multiple tensioning devices are arranged circumferentially around the sensor socket at equal intervals.

[0019] In order to better implement the present application, the above structure is further optimized, and a positioning protrusion is provided at one end of the sensor seat away from the fluid passage;

[0020] The fixed end of the sensor socket is provided with a positioning groove matching the positioning protrusion. When the sensor socket is docked with the sensor seat, the positioning protrusion is clamped in the positioning groove.

[0021] In order to better implement the present application, further optimization is made in the above structure, and a gap is provided between the inner wall of the sensor socket and the outer wall of the sensor sleeve.

[0022] In order to better realize the present application, further optimization is made in the above structure. The sensor sleeve is a tubular structure with openings at both ends. The inner side wall of the connecting end of the sensor sleeve is provided with an internal thread, and the mounting end of the sensor body is provided with an external thread. The sensor body is detachably arranged on the sensor sleeve through the cooperation of the external thread and the internal thread.

[0023] In order to better implement the present application, further optimization is made in the above structure, and a gap exists between the outer wall of the sensor body and the inner wall of the sensor sleeve.

[0024] In order to better realize the present application, the above structure is further optimized, and a sealing slope A is provided on the side wall of the measuring hole;

[0025] The detection end of the sensor body is provided with a sealing bevel B;

[0026] When the tensioning device tensions the sensor sleeve and the fixing seat, the sealing inclined surface A and the sealing inclined surface B are tightly fitted.

[0027] It can be seen from the above technical solution that the sensor body in the sensor sealing assembly provided in the present application is arranged in a sensor cover, and the sensor cover is detachably mounted on a fixed seat through a tensioning device, so that the end of the sensor cover and the detection end of the sensor body can fit tightly on the fixed seat to ensure the sealing effect of the sensor sealing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The diagram is a schematic diagram of a sealing structure in which a sensor and a sensor seat are threadedly matched in the prior art.

[0029] Figure 2 It is a schematic diagram of a sealing structure of a sensor sleeve added between a sensor and a sensor seat in the prior art (the sensor and the sensor seat are both threadedly matched with the sensor sleeve);

[0030] Figure 3 A schematic diagram of the structure of a sensor sealing assembly provided in this application;

[0031] Figure 4 A schematic diagram of the structure of a sensor seat in a sensor sealing assembly provided in the present application;

[0032] Figure 5 A schematic diagram of the structure of a sensor socket in a sensor sealing assembly provided in the present application;

[0033] Figure 6 A schematic diagram of the structure of a sensor sleeve in a sensor sealing assembly provided in the present application;

[0034] Figure 7A schematic structural diagram of a sensor body in a sensor sealing assembly provided in the present application.

[0035] Description of reference numerals:

[0036] 1-fixing seat, 11-sensor seat, 111-slot, 112-measuring hole, 1121-sealing slope A, 113-positioning protrusion, 12-sensor socket, 121-first tightening part, 122-positioning groove;

[0037] 2-sensor sleeve, 21-second tensioning portion;

[0038] 3-sensor body, 31-sealing bevel B;

[0039] 4-Tensioning device. DETAILED DESCRIPTION

[0040] In order to enable technicians in the technical field to which the present application belongs to understand the present application more clearly, the technical solution of the present application is described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0041] In the embodiments of the present application, Figures 3 to 7 As shown, the sensor sealing assembly includes a fixing seat 1 and a sensor sleeve 2; wherein,

[0042] The fixing seat 1 is installed on the pressure device to be tested, and the fixing seat 1 is used for assembling the sensor body 3; the fixing seat 1 is provided with a measuring hole 112, and the measuring hole 112 is connected with the fluid passage in the pressure device to be tested;

[0043] The sensor sleeve 2 is detachably arranged on the fixing seat 1 through the tensioning device 4. The sensor sleeve 2 is provided with a through hole communicating with the above-mentioned measuring hole 112. The sensor body 3 is arranged in the sensor sleeve 2. The detection end of the sensor body 3 is located at the through hole, so that the sensor body 3 can detect the fluid pressure in the fluid passage.

[0044] The direction of the pre-tightening force generated by the tensioning device 4 on the sensor sleeve 2 is opposite to the direction of the fluid pressure at the measuring hole 112, so that it can tightly squeeze the sensor sleeve 2 and the sensor body 3 arranged on the sensor sleeve 2 onto the fixing seat 1, so that the end faces of the sensor sleeve 2 and the sensor body 3 arranged on the sensor sleeve 2 can fit tightly onto the fixing seat 1, thereby ensuring the sealing effect of the sensor sealing assembly.

[0045] In addition, the sensor sleeve 2 is not directly connected to the fixing seat 1 through threads, so the sensor sleeve 2 will not be damaged due to excessive fluid pressure, thereby improving the safety of the sensor sealing assembly during use.

[0046] In some embodiments, a sealing slope A1121 is provided on the side wall of the measuring hole 112;

[0047] The detection end of the sensor body 3 is provided with a sealing bevel B31;

[0048] The setting of the sealing bevel A1121 and the sealing bevel B31 can increase the contact area and matching degree between the fixing seat 1 and the sensor body 3. When the tensioning device 4 tightens the sensor sleeve 2 and the fixing seat 1, the sealing bevel A1121 and the sealing bevel B31 can fit tightly to further improve the sealing effect of the sensor sealing assembly.

[0049] In addition, when the sealing bevel A1121 and / or the sealing bevel B31 are worn, the sensor sleeve 2 and the fixing seat 1 can be further tightened by the tensioning device 4 so that the sensor sleeve 2 and the fixing seat 1 can still fit tightly together to ensure a good sealing effect, thereby increasing the service life of the sensor sealing assembly.

[0050] In some embodiments, the above-mentioned fixing base 1 includes a sensor base 11 and a sensor socket 12; wherein,

[0051] The sensor seat 11 is installed on the pressure device to be measured, and a slot 111 is provided at one end of the sensor seat 11 away from the fluid passage, and a measuring hole 112 is provided in the slot 111;

[0052] The sensor socket 12 is a tubular structure with two ends open. The sensor socket 12 is also arranged on the pressure device to be measured, and the fixed end of the sensor socket 12 is inserted into the notch of the slot 111.

[0053] The connecting end of the sensor sleeve 2 is inserted into the sensor socket 12 and abuts against the slot 111 , and the sensor sleeve 2 is connected to the sensor socket 12 via the tensioning device 4 .

[0054] Since the sensor sleeve 2 is connected to the sensor socket 12 by the tensioning device 4, and the sensor sleeve 2 is sealed and matched with the fixing seat 1 by abutment, there is no need to worry about the sensor seat 11 or the sensor socket 12 being damaged (the thread damage mentioned in the prior art) due to excessive fluid pressure. Therefore, there is no need to consider the disassembly of the sensor seat 11 and the sensor socket 12, so that the sensor seat 11 and the sensor socket 12 can be fixed to the pressure equipment to be tested by welding, and the connection between the sensor seat 11 and the sensor socket 12 is also connected by welding, so that the structure of the sensor sealing assembly is more stable.

[0055] In some embodiments, a positioning protrusion 113 is provided at one end of the sensor seat 11 away from the fluid passage;

[0056] The fixed end of the sensor socket 12 is provided with a positioning groove 122 matching the positioning protrusion 113. When the sensor socket 12 is docked with the sensor base 11, the positioning protrusion 113 is clamped in the positioning groove 122, so that the assembly of the fixing base 1 is simpler and more convenient.

[0057] In addition, the cooperation between the positioning protrusion 113 and the positioning groove 122 has a certain positioning effect, which can ensure that the axes of the assembled sensor seat 11 and the sensor socket 12 coincide with each other or are within the specified error range, so that the assembly of the sensor sleeve 2 is simpler and can be well sealed with the sensor seat 11.

[0058] In some embodiments, the outer side wall of the sensor socket 12 is provided with a first tightening portion 121, and the first tightening portion 121 is provided close to the movable end of the sensor socket 12;

[0059] The outer side wall of the sensor sleeve 2 is provided with a second tightening portion 21, and the second tightening portion 21 is provided close to the movable end of the sensor sleeve 2;

[0060] The tensioning device 4 connects the first tensioning portion 121 and the second tensioning portion 21 to achieve the connection between the sensor socket 12 and the sensor sleeve 2 .

[0061] Specifically, the first tensioning portion 121 and the second tensioning portion 21 are both annular disc structures, the first tensioning portion 121 is coaxially arranged on the sensor socket 12, and a bolt hole is arranged on the first tensioning portion 121;

[0062] The second tensioning portion 21 is coaxially arranged on the sensor sleeve 2, and a through hole is arranged at a position of the second tensioning portion 21 corresponding to the bolt hole; the tensioning device 4 is a tensioning bolt;

[0063] When installing the sensor body 3, the sensor body 3 can be installed in the sensor sleeve 2, and then the sensor sleeve 2 can be inserted into the sensor socket 12, and the end of the sensor sleeve 2 can be placed in the slot 111 of the sensor seat 11, and then the connecting end of the tensioning device 4 can be passed through the through hole and connected to the bolt hole, and the sensor sleeve 2 and the fixing seat 1 can be locked by tightening the tensioning device 4, so that the sensor sleeve 2 and the end of the sensor body 3 can fit tightly in the slot 111, thereby ensuring the sealing effect of the sensor sealing assembly.

[0064] Preferably, there are multiple tensioning devices 4, which are equidistantly arranged around the sensor socket 12 to better achieve locking fit between the sensor sleeve 2 and the fixing seat 1, thereby further improving the sealing effect of the sensor sealing assembly.

[0065] In some embodiments, there is a gap between the inner wall of the sensor socket 12 and the outer wall of the sensor sleeve 2, and there is a gap between the outer wall of the sensor body 3 and the inner wall of the sensor sleeve 2, so that the sensor sleeve 2 can be easily inserted into the sensor socket 12, or taken out of the sensor socket 12, and at the same time, the sensor body 3 can be easily inserted into the sensor sleeve 2, or taken out of the sensor sleeve 2, so that the assembly of the sensor sealing assembly is simpler and more convenient.

[0066] In some embodiments, the above-mentioned sensor sleeve 2 is a tubular structure with openings at both ends. The inner side wall of the connecting end of the sensor sleeve 2 is provided with an internal thread, and the mounting end of the sensor body 3 is provided with an external thread. The sensor body 3 is detachably arranged on the sensor sleeve 2 through the cooperation of the external thread and the internal thread, so that the installation of the sensor body 3 is more convenient.

[0067] Through the above embodiments, the present application has the following beneficial effects or advantages:

[0068] 1) The sensor body 3 in the sensor sealing assembly is arranged in the sensor sleeve 2, and the sensor sleeve 2 is detachably mounted on the fixing seat 1 through the tensioning device 4, so that the end of the sensor sleeve 2 and the detection end of the sensor body 3 can fit tightly on the fixing seat 1 to ensure the sealing effect of the sensor sealing assembly.

[0069] 2) The sensor body 3 in the sensor sealing assembly can increase the contact area between the fixing seat 1 and the sensor body 3 through the cooperation of the sealing bevel B31 and the sealing bevel A1121 on the measuring hole 112, so as to further improve the sealing effect of the sensor sealing assembly.

[0070] 3) In the sensor sealing assembly, there is a gap between the inner wall of the sensor socket 12 and the outer wall of the sensor sleeve 2, and there is a gap between the outer wall of the sensor body 3 and the inner wall of the sensor sleeve 2, making the assembly of the sensor sealing assembly simpler and more convenient.

[0071] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0072] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A sensor sealing assembly, characterized in that: include: A fixing seat (1), the fixing seat (1) being mounted on the pressure device to be tested, the fixing seat (1) being used for assembling the sensor body (3); a measuring hole (112) being provided on the fixing seat (1), the measuring hole (112) being in communication with a fluid passage in the pressure device to be tested; A sensor sleeve (2), wherein the sensor sleeve (2) is detachably arranged on the fixing seat (1) via a tensioning device (4), the direction of the pre-tightening force generated by the tensioning device (4) on the sensor sleeve (2) is opposite to the direction of the fluid pressure at the measuring hole (112), the sensor sleeve (2) is provided with a through hole connected to the measuring hole (112), the sensor body (3) is arranged in the sensor sleeve (2), and the detection end of the sensor body (3) is located at the through hole.

2. The sensor sealing assembly according to claim 1, characterized in that: The fixing seat (1) comprises a sensor seat (11) and a sensor socket (12); The sensor seat (11) is mounted on the pressure device to be measured, a slot (111) is provided at one end of the sensor seat (11) away from the fluid passage, and the measuring hole (112) is provided in the slot (111); The sensor socket (12) is a tubular structure with two ends open, and the fixed end of the sensor socket (12) is inserted into the notch of the slot (111); The connecting end of the sensor sleeve (2) is inserted into the sensor socket (12) and abuts against the slot (111), and the sensor socket (12) is connected to the sensor socket (12) via the tensioning device (4).

3. The sensor sealing assembly according to claim 2, characterized in that: The outer side wall of the sensor socket (12) is provided with a first tightening portion (121), and the first tightening portion (121) is arranged close to the movable end of the sensor socket (12); The outer side wall of the sensor sleeve (2) is provided with a second tightening portion (21), and the second tightening portion (21) is arranged close to the movable end of the sensor sleeve (2); The tensioning device (4) connects the first tensioning portion (121) and the second tensioning portion (21) to achieve the connection between the sensor socket (12) and the sensor sleeve (2).

4. The sensor sealing assembly according to claim 3, characterized in that: The tensioning device (4) is a tensioning bolt; The first tensioning portion (121) is provided with a bolt hole; The second tensioning portion (21) is provided with a through hole at a position corresponding to the bolt hole, and the connecting end of the tensioning device (4) passes through the through hole and is connected to the bolt hole, thereby realizing the connection between the sensor socket (12) and the sensor sleeve (2).

5. The sensor sealing assembly according to claim 4, characterized in that: The number of the tensioning devices (4) is multiple, and the multiple tensioning devices (4) are arranged at equal intervals around the circumference of the sensor socket (12).

6. The sensor sealing assembly according to claim 2, characterized in that: A positioning protrusion (113) is provided at one end of the sensor seat (11) away from the fluid passage; The fixed end of the sensor socket (12) is provided with a positioning groove (122) matching the positioning protrusion (113); when the sensor socket (12) is docked with the sensor seat (11), the positioning protrusion (113) is locked in the positioning groove (122).

7. The sensor sealing assembly according to claim 6, characterized in that: There is a gap between the inner wall of the sensor socket (12) and the outer wall of the sensor sleeve (2).

8. The sensor sealing assembly according to any one of claims 1 to 7, characterized in that: The sensor sleeve (2) is a tubular structure with two ends open, the inner side wall of the connecting end of the sensor sleeve (2) is provided with an internal thread, the mounting end of the sensor body (3) is provided with an external thread, and the sensor body (3) is detachably arranged on the sensor sleeve (2) by the cooperation of the external thread and the internal thread.

9. The sensor sealing assembly according to claim 8, characterized in that: There is a gap between the outer wall of the sensor body (3) and the inner wall of the sensor sleeve (2).

10. The sensor sealing assembly according to claim 1, characterized in that: A sealing slope A (1121) is provided on the side wall of the measuring hole (112); The detection end of the sensor body (3) is provided with a sealing inclined surface B (31); When the tensioning device (4) tensions the sensor sleeve (2) and the fixing seat (1), the sealing bevel A (1121) and the sealing bevel B (31) are tightly fitted.

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