Inner leakage detection equipment of steam soot blower

Abstract

The invention relates to the technical field of steam soot blowers, in particular to inner leakage detection equipment of a steam soot blower, which comprises a detection ring, a rotary joint connecting port of the steam soot blower is sleeved with the detection ring in a sealing manner, and a cavity used for collecting leaked gas is formed in the inner side wall of the detection ring. The piston ring in the detection assembly is pushed to translate by using gas pressure, and the pushing piece is driven to move below the second circuit connecting block to enable the second circuit connecting block to be disconnected with the external alarm, so that the external alarm gives an alarm, and the effects of detecting inner leakage and giving an alarm in time are achieved. The gas entering the detection ring can continuously enter the first sealing sleeve through the annular flow guide groove, the first sealing sleeve is promoted to expand, then the sealing performance of the connecting opening of the first sealing sleeve and the rotary connector is improved, and finally emergency expansion sealing, gas leakage speed reduction and device sealing performance improvement are achieved when the inner leakage problem is found.

Description

Technical Field

[0001] The invention relates to the technical field of steam soot blowers, and in particular to internal leakage detection equipment for steam soot blowers. Background Art

[0002] The basic principle of a steam soot blower is that steam flows into the stationary end pipe, passes through the center hole inside the rotating shaft, and is ejected from the nozzle at the front end of the sootblower. The sealing ring of the rotary joint is tightened by a spring or self-sealed by steam pressure to ensure that the airflow does not leak during rotation.

[0003] During long-term use, the aging and damage of the sealing ring will affect the connection sealing of the rotary joint and the stationary end pipe. When the seal fails, the internal steam gas will leak out through the leakage point, which will not only affect the normal sootblowing effect of the steam sootblower, but also pose certain safety hazards. Regular manual inspections cannot detect internal leakage problems at the rotary joint connection.

[0004] Existing steam sootblowers are unable to detect internal leakage at the rotary joint connection during long-term use, resulting in a lack of timely warning and emergency remediation when leakage occurs. In view of this, we propose an internal leakage detection device for steam sootblowers. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and provide an internal leakage detection device for a steam soot blower.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: Internal leakage detection equipment for steam soot blowers, including: A detection ring and a sealing sleeve are provided on the rotary joint connection port of the steam soot blower. A cavity for collecting leaked gas is provided on the inner side wall of the detection ring. An annular guide groove for guiding the leaked gas and multiple air inlets are provided on the side wall of the cavity. A sealing assembly is disposed inside the detection ring and includes a first sealing sleeve connected to the cavity through an annular guide groove; The detection assembly is arranged in the detection ring and includes a sealing ring fixedly connected to the side wall of the cavity, a piston ring sealingly and slidingly connected between the sealing ring and the other side wall of the cavity, a second circuit connection block electrically connected to the external alarm, and a pushing member arranged on the piston ring and used to push the second circuit connection block to release the electrical connection between the second circuit connection block and the external alarm.

[0007] Preferably, there are two sealing rings and two piston rings, and the two sealing rings and the two piston rings and the multiple air inlets are symmetrically arranged in the annular guide groove.

[0008] Preferably, the sealing assembly further comprises a second sealing sleeve abutting against the inner wall of the rotary joint connection port, and the first sealing sleeve and the second sealing sleeve are in communication.

[0009] Preferably, the pushing member includes two magnetic strips and a magnetic block, the two magnetic strips are fixedly connected to opposite sides of the two piston rings respectively, there are two second circuit connection blocks, and both ends of the two second circuit connection blocks are slidably connected to the first circuit connection block, the first circuit connection block is fixedly connected to the outer wall of the detection ring and is electrically connected to the external alarm, and the magnetic block is fixedly connected to the bottom of the second circuit connection block and magnetically repels the magnetic strip.

[0010] Preferably, the piston ring is fixedly connected with a plurality of fixed shafts, and one end of the plurality of fixed shafts close to the annular guide groove is fixedly connected with a support block, and the side of the support block opposite to the piston ring is fixedly connected with a piston shaft, and the piston shaft passes through the sealing ring and is connected to the sealing ring piston.

[0011] Preferably, a plurality of return springs are fixedly connected to one side of the support block and the sealing ring opposite to each other, and the plurality of return springs are respectively sleeved on the piston shaft.

[0012] Preferably, a stopper is fixedly connected to one end of the piston shaft away from the annular guide groove, and the diameter of the stopper is larger than the diameter of the end of the piston shaft.

[0013] Preferably, the maximum movement distance of the piston ring is greater than the width of the sealing ring.

[0014] Preferably, the outer surface of the first sealing sleeve is in close contact with the connection port of the rotary joint, and the second sealing sleeve is in the shape of a right-angled ring and is embedded in the inner wall of the connection port of the rotary joint.

[0015] Preferably, both sides of the inner wall of the detection ring are fixedly connected with a clamping ring for clamping on the external rotary joint, and the opposite sides of the two clamping rings are fixedly connected with an annular sealing ring for improving the sealing performance between the detection ring and the rotary joint.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The internal leakage detection device of the steam soot blower, when gas leakage occurs due to internal leakage problem, the gas will preferentially enter the detection ring cavity through the air inlet under the condition that the detection ring and the rotary joint are sealed, and push the piston ring in the detection assembly to translate under the gas pressure. At this time, the piston ring will drive the pusher to move to the bottom of the second circuit connection block to disconnect the second circuit connection block and the external alarm, so that the external alarm will sound an alarm, achieving the effect of detecting internal leakage and timely alarming. At the same time, the gas entering the detection ring will continue to enter the first sealing sleeve through the annular guide groove, and cause the first sealing sleeve to expand, thereby increasing the sealing performance of the connection between the first sealing sleeve and the rotary joint, and finally achieving emergency expansion sealing when the internal leakage problem is found, reducing the leakage rate and improving the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the detection ring in the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the present invention as a whole; Figure 4 Schematic diagram of the structure of the detection component of the present invention; Figure 5 Schematic diagram of the structure of the sealing assembly of the present invention; Figure 6 It is a structural schematic diagram of the sealing ring and piston ring in the present invention.

[0018] The meaning of each number in the figure is: 1. Detection ring; 11. Air inlet; 111. Annular guide groove; 12. Snap ring; 13. Annular sealing ring; 2. Sealing assembly; 21. First sealing sleeve; 22. Second sealing sleeve; 3. Detection assembly; 31. Sealing ring; 32. Piston ring; 33. Piston shaft; 34. Support block; 35. Fixed shaft; 36. Return spring; 37. Pusher; 371. Magnetic strip; 372. Magnetic block; 38. First circuit connection block; 39. Second circuit connection block. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The present invention describes the above technical solution in detail through the following embodiments: Example 1 See also Figures 1-6 As shown, the internal leakage detection equipment of the steam soot blower includes: The detection ring 1 and the sealing sleeve are arranged on the rotary joint connection port of the steam soot blower. A cavity for collecting leaked gas is opened on the inner side wall of the detection ring 1. An annular guide groove 111 for guiding the leaked gas and multiple air inlets 11 are opened on the side wall of the cavity; The sealing assembly 2 is arranged inside the detection ring 1 and includes a first sealing sleeve 21 connected to the cavity through an annular guide groove 111; The detection assembly 3 is arranged in the detection ring 1, and includes a sealing ring 31 fixedly connected to the side wall of the cavity, a piston ring 32 sealingly and slidingly connected between the sealing ring 31 and the other side wall of the cavity, a second circuit connection block 39 electrically connected to the external alarm, and a pushing member 37 arranged on the piston ring 32 and used to push the second circuit connection block 39 to release the electrical connection between the second circuit connection block 39 and the external alarm.

[0021] When there is a leakage problem at the connection port of the external rotary joint, the leaked gas will preferentially enter the two sides of the cavity of the detection ring 1 through the air inlet 11 when the detection ring 1 and the rotary joint are sealed, and push the piston ring 32 in the detection component 3 to translate. At this time, the piston ring 32 will drive the pusher 37 to move to the bottom of the second circuit connection block 39 to disconnect the second circuit connection block 39 from the external alarm, so that the external alarm will sound an alarm, achieving the effect of detecting internal leakage and giving an alarm in time. At the same time, the gas entering the detection ring 1 will continue to enter the first sealing sleeve 21 through the annular guide groove 111, and cause the first sealing sleeve 21 to expand, thereby increasing the sealing performance of the connection port between the first sealing sleeve 21 and the rotary joint, and finally achieving emergency expansion sealing when an internal leakage problem is found, reducing the leakage rate and improving the sealing performance of the device.

[0022] Furthermore, there are two sealing rings 31 and two piston rings 32, and the two sealing rings 31 and the piston rings 32 and the multiple air inlets 11 are symmetrically arranged on both sides of the annular guide groove 111. The pusher 37 includes two magnetic strips 371 and a magnetic block 372. The two magnetic strips 371 are fixedly connected to the opposite sides of the two piston rings 32 respectively. There are two second circuit connection blocks 39, and both ends of the two second circuit connection blocks 39 are slidingly connected to the first circuit connection block 38. The first circuit connection block 38 is fixedly connected to the outer wall of the detection ring 1 and is electrically connected to the external alarm. The magnetic block 372 is fixedly connected to the bottom of the second circuit connection block 39 and magnetically repels the magnetic strip 371.

[0023] The leaked gas enters the cavity of the detection ring 1, and under continuous gas pressure, pushes the piston ring 32 to slide between the sealing ring 31 and the cavity wall of the detection ring 1. After the piston ring 32 slides to the specified position, the magnetic strip 371 fixedly connected to its surface will correspond to the position of the second circuit connection block 39, and under the magnetic repulsion of the magnetic strip 371 and the magnetic block 372 with the same magnetic pole on the second circuit connection block 39, the second circuit connection block 39 is prompted to slide upward to the upper limit between the two electrically connected first circuit connection blocks 38. Finally, after sliding to a certain distance, the second circuit connection block 39 is disconnected from the first circuit connection block 38. At this time, the external alarm will send an alarm signal to remind maintenance personnel to come and check for internal leakage, thereby utilizing the flow pressure of the leaking gas itself to trigger the movement of related structures in the detection component 3, thereby achieving the effect of detecting internal leakage and timely alarm.

[0024] Furthermore, multiple fixed shafts 35 are fixedly connected to the piston ring 32, and a support block 34 is fixedly connected to one end of the multiple fixed shafts 35 near the annular guide groove 111. A piston shaft 33 is fixedly connected to the side of the support block 34 opposite the piston ring 32. The piston shaft 33 passes through the sealing ring 31 and is connected to the sealing ring 31 piston. By using the multiple fixed shafts 35 on the piston ring 32 and the piston shaft 33 connected to the sealing ring 31 piston, and the support blocks 34 fixedly connected to the piston shaft 33 and the fixed shafts 35, the piston ring 32 connected to the piston can be limited, so that it always maintains stable piston sliding between the outer wall of the sealing ring 31 and the inner wall of the detection ring 1, thereby ensuring that the leaking gas can push the piston ring 32 to move and trigger the subsequent alarm effect.

[0025] Furthermore, multiple return springs 36 are fixedly connected to the side of the support block 34 opposite the sealing ring 31, and each of the return springs 36 is sleeved onto the piston shaft 33. By sleeved onto the piston shaft 33 and fixedly connected to the side of the support block 34 opposite the sealing ring 31, the elasticity of the return springs 36 can reset the piston ring 32 after the internal leakage problem is resolved, thereby achieving the effect of convenient and continued use.

[0026] Example 2 Further supplements are made based on Example 1. Please refer to Figures 1-6 As shown, one end of the piston shaft 33 away from the annular guide groove 111 is fixedly connected to a stopper, and the diameter of the stopper is larger than the diameter of the end of the piston shaft 33 .

[0027] By setting a stopper larger than the diameter of the end of the piston shaft 33, it is possible to avoid the problem of directly pushing the piston ring 32 too far or causing the piston shaft 33 to separate from the sealing ring 31 when the leakage gas pressure is too high, thereby ensuring that the device can be used stably.

[0028] Furthermore, the maximum moving distance of the piston ring 32 is greater than the width of the sealing ring 31 and corresponds to the position of the second circuit connection block 39 .

[0029] When the piston ring 32 reaches the designated position, the leaked gas can enter the first sealing sleeve 21 and the second sealing sleeve 22 through the gap between the sealing ring 31 and the piston ring 32, and collide again, thereby achieving the effect of timely sealing and remedial after the leakage, and accurately controlling the magnetic strip 371 to trigger the circuit-breaking action of the second circuit connection block 39.

[0030] The sealing assembly 2 also includes a second sealing sleeve 22 that abuts the inner wall of the rotary joint connection port. The first sealing sleeve 21 and the second sealing sleeve 22 are connected. The outer surface of the first sealing sleeve 21 is in a close-fitting connection with the rotary joint connection port. The second sealing sleeve 22 is in the shape of a right-angled ring and is embedded in the inner wall of the rotary joint connection port. This arrangement improves the sealing effect between the first sealing sleeve 21 and the outer wall of the rotary joint and between the inner wall of the connection port. The right-angled ring shape of the second sealing sleeve 22 cooperates with the first sealing sleeve 21 to form a stepped sealing structure, thereby increasing the resistance to the outflow of leaked gas and improving the sealing effect.

[0031] It should be noted that both sides of the inner wall of the detection ring 1 are fixedly connected with a clamping ring 12 for clamping on the external rotary joint, and the opposite side of the two clamping rings 12 are fixedly connected with an annular sealing ring 13 for improving the sealing between the detection ring 1 and the external rotary joint.

[0032] By providing an annular groove on the outer wall of the rotary joint that matches the snap ring 12, the snap ring 12 can drive the detection ring 1 to be quickly snap-fitted and installed on the rotary joint. At the same time, the annular sealing ring 13 can also improve the sealing between the snap ring 12 and the rotary joint.

[0033] The internal leakage detection device of the steam soot blower of this embodiment works as follows: when there is a gas leakage problem at the connection port of the external rotary joint, the leaked gas will first pass through the second sealing sleeve 22 abutting against the inner wall of the connection port and the first sealing sleeve 21 fitted on the rotary joint. During this period, by squeezing the fitted first sealing sleeve 21 and the second sealing sleeve 22, the gas leakage rate can be reduced and the sealing performance can be improved. Subsequently, the leaked gas will pass through the multiple air inlets 11 opened on the detection ring 1, enter the detection ring 1 from both sides of the cavity of the detection ring 1, and push the piston ring 32 to slide between the sealing ring 31 and the cavity of the detection ring 1. After the piston ring 32 slides to the specified position, the magnetic strip 371 fixedly connected to its surface will correspond to the position of the second circuit connection block 39, and under the magnetic repulsion of the magnetic strip 371 and the magnetic block 372 with the same pole as the second circuit connection block 39, the second circuit connection block 39 is prompted to be connected between the two electrically connected first circuit connections. The connecting blocks 38 slide upwards and finally, after sliding to a certain distance, the circuit with the first circuit connecting block 38 is disconnected. At this time, the external alarm will send an alarm signal to remind the maintenance personnel to come and check for internal leakage, and finally, the fluidity of the leaking gas itself is used to trigger the movement of the relevant structures in the detection assembly 3, thereby achieving the effect of detecting internal leakage and timely alarm. In the above process, the piston ring 32 will drive the fixed shaft 35 and the support block 34 to move synchronously, and prompt the piston shaft 33 connected to the sealing ring 31 to perform synchronous piston movement on the sealing ring 31, which can limit the piston ring 32 connected to the piston, so that it always maintains stable piston sliding between the outer wall of the sealing ring 31 and the inner wall of the detection ring 1, thereby ensuring that the leaking gas can push the piston ring 32 to move and trigger the subsequent alarm effect. After the internal leakage problem is solved, the elasticity of the reset spring 36 can drive the piston ring 32 to reset, thereby achieving the effect of convenient and continuous use. At the same time, the leaked gas from the sealing ring 31 through the piston ring 32 will continue to enter the first sealing sleeve 21 and the second sealing sleeve 22 through the annular guide groove 111, and cause the first sealing sleeve 21 and the second sealing sleeve 22 to expand, thereby increasing the sealing performance at the connection port between the first sealing sleeve 21 and the second sealing sleeve 22 and the rotary joint, and ultimately achieving emergency expansion sealing while issuing an alarm when a leakage problem is detected at the connection port of the connecting pipe, thereby reducing the leakage rate and improving the sealing detection effect of the device.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] It will be apparent 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. The internal leakage detection equipment of steam soot blower is characterized by: include: A detection ring (1), a sealing sleeve is provided on the rotary joint connection port of the steam soot blower, a cavity for collecting leaked gas is provided on the inner side wall of the detection ring (1), and an annular guide groove (111) for guiding the leaked gas and a plurality of air inlets (11) are provided on the side wall of the cavity; A sealing assembly (2) is arranged inside the detection ring (1), comprising a first sealing sleeve (21) connected to the cavity via an annular guide groove (111); A detection assembly (3) is arranged in the detection ring (1), comprising a sealing ring (31) fixedly connected to the side wall of the cavity, a piston ring (32) sealingly and slidingly connected between the sealing ring (31) and the other side wall of the cavity, a second circuit connection block (39) electrically connected to the external alarm, and a pushing member (37) arranged on the piston ring (32) and used to push the second circuit connection block (39) to release the second circuit connection block (39) from being electrically connected to the external alarm.

2. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: There are two sealing rings (31) and two piston rings (32), and the two sealing rings (31) and the two piston rings (32) and the plurality of air inlets (11) are symmetrically arranged on both sides of the annular guide groove (111).

3. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: The sealing assembly (2) further comprises a second sealing sleeve (22) abutting against the inner wall of the rotary joint connection port, and the first sealing sleeve (21) and the second sealing sleeve (22) are in communication.

4. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: The pushing member (37) includes two magnetic strips (371) and a magnetic block (372), the two magnetic strips (371) are fixedly connected to the opposite sides of the two piston rings (32), there are two second circuit connection blocks (39), and both ends of the two second circuit connection blocks (39) are slidably connected to the first circuit connection block (38), the first circuit connection block (38) is fixedly connected to the outer wall of the detection ring (1) and is electrically connected to the external alarm, and the magnetic block (372) is fixedly connected to the bottom of the second circuit connection block (39) and magnetically repels the magnetic strip (371).

5. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: A plurality of fixed shafts (35) are fixedly connected to the piston ring (32), and one end of the plurality of fixed shafts (35) close to the annular guide groove (111) is fixedly connected to a support block (34). A piston shaft (33) is fixedly connected to the side of the support block (34) opposite to the piston ring (32). The piston shaft (33) passes through the sealing ring (31) and is connected to the piston of the sealing ring (31).

6. The internal leakage detection device for a steam soot blower according to claim 5, characterized in that: A plurality of return springs (36) are fixedly connected to the support block (34) and the opposite side of the sealing ring (31), and the plurality of return springs (36) are respectively sleeved on the piston shaft (33).

7. The internal leakage detection device for a steam soot blower according to claim 5, characterized in that: One end of the piston shaft (33) away from the annular guide groove (111) is fixedly connected to a stopper, and the diameter of the stopper is larger than the diameter of the end of the piston shaft (33).

8. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: The maximum moving distance of the piston ring (32) is greater than the width of the sealing ring (31).

9. The internal leakage detection device for a steam soot blower according to claim 3, characterized in that: The outer surface of the first sealing sleeve (21) is fitted and connected to the rotary joint connection port, and the second sealing sleeve (22) is in the shape of a right-angled ring and is embedded in the inner wall of the rotary joint connection port.

10. The internal leakage detection device for a steam soot blower according to claim 1, characterized in that: Both sides of the inner wall of the detection ring (1) are fixedly connected with a clamping ring (12) for clamping on an external rotary joint, and the opposite sides of the two clamping rings (12) are fixedly connected with an annular sealing ring (13) for improving the sealing performance between the detection ring (1) and the rotary joint.

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