Sealing performance detection device for mechanical sealing element

Abstract

The utility model discloses a sealing performance detection device for a mechanical sealing element, relates to the field of sealing performance detection, and aims to solve the problem that the existing detection device cannot perform heating detection on the mechanical sealing element and cannot detect the sealing performance of the mechanical sealing element at different temperatures due to different working temperatures of the mechanical sealing element in the prior art. An electromagnetic heating control device is fixedly arranged on one side in the detection device box, a supporting pipe is fixedly connected to the middle of the upper end of the detection device box, a pressurizing pipe is fixedly connected to the middle of the supporting pipe, the upper end of the pressurizing pipe extends out of the upper end of the supporting pipe, and an air pressure sensor is fixedly connected to the upper end face in the pressurizing pipe. A mechanical sealing piece is placed at the upper end of the supporting pipe and outside the opening of the pressurizing pipe, a pressing piece is connected to the upper end of the pressurizing pipe, an annular heating assembly is fixedly connected to the upper end face of the detection device box and outside the supporting pipe, and an electromagnetic heating coil is arranged at the upper end of the inner end face of the annular heating assembly.

Description

Technical Field

[0001] The utility model relates to the field of sealing detection, in particular to a sealing detection device for mechanical sealing parts. Background Art

[0002] Mechanical seals are one of the basic mechanical components with precision and complex structure. They are key components of various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Mechanical seals refer to devices that prevent fluid leakage by maintaining contact and relative sliding under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of auxiliary seals, which are composed of at least one pair of end faces perpendicular to the axis of rotation.

[0003] Authorization announcement number CN 215178410 U, a sealing member sealing detection device, comprising a box body, a circular hole is provided on the box body, water is placed in the box body, a roller is installed under the box body, a detection device passes through the circular hole and is placed in the box body, and an air suction device is installed on the detection device, the box body is a hot and cold regulating box, the detection device comprises a shell body provided with a groove one, a shell cover is installed on the shell body by bolts, and the shell cover is provided with a groove two corresponding to the groove one, and the seal to be tested is installed in the groove one and the groove two. The detection device disclosed in the utility model can realize the detection of the seal under different ambient temperatures, and can detect whether the sealing performance of the seal is intact at high or low temperatures. Since the utility model is provided with a roller, the flexibility of use is improved. And the utility model can detect the sealing performance of seals to be tested of different sizes under shells of different sizes.

[0004] Due to the different working temperatures of mechanical seals, existing detection devices cannot perform heating detection on mechanical seals, and cannot detect the sealing performance of mechanical seals at different temperatures; therefore, the market urgently needs to develop a sealing detection device for mechanical seals to help people solve existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing detection device for mechanical seals to solve the problem raised in the above background technology that due to the different working temperatures of mechanical seals, the existing detection device cannot heat the mechanical seals for detection and cannot detect the sealing performance of the mechanical seals at different temperatures.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing detection device for a mechanical seal, comprising a detection device box, an electromagnetic heating control device is fixedly arranged on one side of the detection device box, an air pump is fixedly arranged in the middle of the detection device box, a support tube is fixedly connected to the middle of the upper end of the detection device box, a first pressure sealing ring is arranged on the upper end surface of the support tube, a pressurized tube is fixedly connected to the middle of the support tube, the upper end of the pressurized tube extends out of the upper end of the support tube, an opening is arranged on the pressurized tube, an air pressure sensor is fixedly connected to the upper end surface of the pressurized tube, a mechanical seal is placed on the upper end of the support tube and on the outside of the opening of the pressurized tube, a pressing piece is connected to the upper end of the pressurized tube, a circular slot is arranged in the middle of the lower end surface of the pressing piece, a second pressure sealing ring is fixedly connected to the lower end surface of the pressing piece, an annular heating component is fixedly connected to the upper end surface of the detection device box and on the outside of the support tube, and an electromagnetic heating coil is arranged on the upper end of the inner end surface of the annular heating component.

[0007] Preferably, the interior of the pressurized tube is fixed by a plurality of connecting rods.

[0008] Preferably, a screw rod is provided in the middle of the circular slot, and a threaded hole is provided in the middle of the upper end surface of the support tube.

[0009] Preferably, the upper end of the support tube is inserted into the circular slot and the screw is threadedly connected to the threaded hole, and the lower end of the pressing piece is in contact with the upper end of the mechanical seal.

[0010] Preferably, the upper end of the screw rod extends out of the upper end surface of the pressing piece and is fixedly connected to a limiting ring, and the upper end of the screw rod passes through the limiting ring and is fixedly connected to a rotating rod.

[0011] Preferably, the electromagnetic heating coil and the electromagnetic heating control device are connected via a control line.

[0012] Preferably, the lower end of the pressurized tube extends to the inside of the detection device box and is fixedly connected to the air pump.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the setting of the annular heating component, the upper end surface of the detection device box is fixedly connected with the annular heating component on the outside of the support tube, and the upper end of the inner end surface of the annular heating component is provided with an electromagnetic heating coil. The electromagnetic heating coil and the electromagnetic heating control device are connected by a control line. The electromagnetic heating control device controls the electromagnetic heating coil to heat the mechanical seal at different temperatures, thereby realizing the sealing detection of the mechanical seal at different temperatures.

[0015] 2. In the utility model, through the setting of the clamping piece, the upper end of the pressurized tube is connected with the clamping piece, the upper end of the support tube is inserted into the circular slot and the screw is threadedly connected to the threaded hole, and the lower end of the clamping piece fits the upper end of the mechanical seal, and the clamping piece and the support tube are fixed by the screw, and at the same time, the clamping piece presses down the mechanical seal, so that sealing is achieved between the clamping piece and the mechanical seal and between the mechanical seal and the support tube.

[0016] 3. In the utility model, through the setting of the limiting ring, the upper end of the screw extends out of the upper end surface of the clamping piece and is fixedly connected to the limiting ring. The upper end of the screw passes through the limiting ring and is fixedly connected with a rotating rod. The screw is driven to rotate by the rotating rod. When the screw is connected to the threaded hole, the limiting ring presses down the clamping piece to achieve fitting with the upper end of the mechanical seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a sealing detection device for a mechanical seal according to the utility model;

[0018] Figure 2 It is the main sectional view of the utility model;

[0019] Figure 3 It is a top sectional view of the pressurized pipe of the utility model;

[0020] Figure 4 It is an enlarged view of the detail A of the present utility model.

[0021] In the figure: 1. detection device box; 101. electromagnetic heating control device; 102. air pump; 103. support tube; 104. first pressure sealing ring; 2. pressurizing tube; 201. opening; 202. connecting rod; 203. air pressure sensor; 204. threaded hole; 3. mechanical seal; 4. clamping piece; 401. circular slot; 402. second pressure sealing ring; 403. screw; 404. limit ring; 405. rotating rod; 5. annular heating assembly; 501. electromagnetic heating coil; 502. control line. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4The utility model provides an embodiment: a sealing detection device for a mechanical seal, comprising a detection device box 1, an electromagnetic heating control device 101 is fixedly arranged on one side of the detection device box 1, an air pump 102 is fixedly arranged in the middle of the detection device box 1, a support tube 103 is fixedly connected to the middle of the upper end of the detection device box 1, a first pressure sealing ring 104 is arranged on the upper end surface of the support tube 103, a pressurizing tube 2 is fixedly connected to the middle of the support tube 103, the upper end of the pressurizing tube 2 extends out of the upper end of the support tube 103, and the upper end of the pressurizing tube 2 An opening 201 is provided, and an air pressure sensor 203 is fixedly connected to the upper end surface of the inner part of the pressurized tube 2. A mechanical seal 3 is placed on the upper end of the support tube 103 and outside the opening 201 of the pressurized tube 2. A clamping piece 4 is connected to the upper end of the pressurized tube 2. A circular slot 401 is provided in the middle of the lower end surface of the clamping piece 4. A second pressure sealing ring 402 is fixedly connected to the lower end surface of the clamping piece 4. An annular heating component 5 is fixedly connected to the upper end surface of the detection device box 1 and outside the support tube 103. An electromagnetic heating coil 501 is provided on the upper end of the inner end surface of the annular heating component 5.

[0024] Furthermore, the interior of the pressurized pipe 2 is fixed by a plurality of connecting rods 202 .

[0025] Furthermore, a screw rod 403 is disposed in the middle of the circular slot 401 , and a threaded hole 204 is disposed in the middle of the upper end surface of the support tube 103 .

[0026] Furthermore, the upper end of the support tube 103 is inserted into the circular slot 401 and the screw 403 is threadedly connected to the threaded hole 204, and the lower end of the clamping piece 4 is attached to the upper end of the mechanical seal 3, and the clamping piece 4 and the support tube 103 are fixed by the screw 403, and at the same time, the clamping piece 4 presses down the mechanical seal 3, so that sealing is achieved between the clamping piece 4 and the mechanical seal 3 and between the mechanical seal 3 and the support tube 103.

[0027] Furthermore, the upper end of the screw 403 extends out of the upper end surface of the clamping piece 4 and is fixedly connected to a limiting ring 404. The upper end of the screw 403 passes through the limiting ring 404 and is fixedly connected to a rotating rod 405. The screw 403 is driven to rotate by the rotating rod 405. When the screw 403 is connected to the threaded hole 204, the limiting ring 404 presses down the clamping piece 4 to achieve fitting with the upper end of the mechanical seal 3.

[0028] Furthermore, the electromagnetic heating coil 501 is connected to the electromagnetic heating control device 101 via a control line 502. The electromagnetic heating control device 101 controls the electromagnetic heating coil 501 to heat the mechanical seal 3 at different temperatures, thereby realizing sealing detection of the mechanical seal 3 at different temperatures.

[0029] Furthermore, the lower end of the pressurized tube 2 extends to the interior of the detection device box 1 and is fixedly connected to the air pump 102. The air pump 102 is used to supply gas to the interior of the pressurized tube 2 for pressurization. The gas pressure is transmitted to the mechanical seal 3 through the opening 201. The air pressure inside the pressurized tube 2 is detected in real time by the air pressure sensor 203, thereby realizing the detection of the sealing performance of the mechanical seal 3.

[0030] Working principle: When in use, the mechanical seal 3 is inserted into the outer side of the pressurized tube 2 and placed on the upper end of the support tube 103, and the circular slot 401 of the clamping piece 4 is inserted into the upper end of the pressurized tube 2, so that the screw 403 is inserted into the threaded hole 204 for threaded connection, and the screw 403 is driven to rotate by the rotating rod 405. When the screw 403 is connected with the threaded hole 204, the limit ring 404 presses down the clamping piece 4 to achieve fitting with the upper end of the mechanical seal 3, and at the same time, the clamping piece 4 presses down the mechanical seal 3, so that the clamping piece 4 and the mechanical seal 3 and A seal is achieved between the mechanical seal 3 and the support tube 103. Gas is supplied and pressurized into the pressurized tube 2 through the air pump 102. The gas pressure is transmitted to the mechanical seal 3 through the opening 201. The air pressure inside the pressurized tube 2 is detected in real time by the air pressure sensor 203, thereby realizing the sealing detection of the mechanical seal 3. The electromagnetic heating control device 101 controls the electromagnetic heating coil 501 to heat the mechanical seal 3 at different temperatures, thereby realizing the sealing detection of the mechanical seal 3 at different temperatures.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sealing detection device for a mechanical seal, comprising a detection device box (1), characterized in that: An electromagnetic heating control device (101) is fixedly arranged on one side of the interior of the detection device box (1); an air pump (102) is fixedly arranged in the middle of the interior of the detection device box (1); a support tube (103) is fixedly connected to the middle of the upper end of the detection device box (1); a first pressure sealing ring (104) is arranged on the upper end surface of the support tube (103); a pressurizing tube (2) is fixedly connected to the middle of the support tube (103); the upper end of the pressurizing tube (2) extends out of the upper end of the support tube (103); an opening (201) is arranged on the pressurizing tube (2); and the upper end surface of the interior of the pressurizing tube (2) is fixedly A pressure sensor (203) is connected, a mechanical seal (3) is placed on the upper end of the support tube (103) and outside the opening (201) of the pressurizing tube (2), a clamping piece (4) is connected to the upper end of the pressurizing tube (2), a circular slot (401) is provided in the middle of the lower end surface of the clamping piece (4), a second pressure seal ring (402) is fixedly connected to the lower end surface of the clamping piece (4), an annular heating component (5) is fixedly connected to the upper end surface of the detection device box (1) and outside the support tube (103), and an electromagnetic heating coil (501) is provided on the upper end of the inner end surface of the annular heating component (5).

2. A sealing detection device for a mechanical seal according to claim 1, characterized in that: The interior of the pressurized tube (2) is fixed by a plurality of connecting rods (202).

3. A sealing detection device for a mechanical seal according to claim 1, characterized in that: A screw rod (403) is arranged in the middle of the circular slot (401), and a threaded hole (204) is arranged in the middle of the upper end surface of the support tube (103).

4. A sealing detection device for a mechanical seal according to claim 3, characterized in that: The upper end of the support tube (103) is inserted into the circular slot (401) so that the screw rod (403) is threadedly connected to the threaded hole (204), and the lower end of the pressing member (4) is in contact with the upper end of the mechanical seal (3).

5. A sealing detection device for a mechanical seal according to claim 4, characterized in that: The upper end of the screw rod (403) extends out of the upper end surface of the pressing member (4) and is fixedly connected to a limiting ring (404); the upper end of the screw rod (403) passes through the limiting ring (404) and is fixedly connected to a rotating rod (405).

6. A sealing detection device for a mechanical seal according to claim 1, characterized in that: The electromagnetic heating coil (501) is connected to the electromagnetic heating control device (101) via a control line (502).

7. A sealing detection device for a mechanical seal according to claim 1, characterized in that: The lower end of the pressurizing tube (2) extends to the interior of the detection device box (1) and is fixedly connected to the air pump (102).

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