CN223460280U - A thermal power plant valve internal leakage detection device - Google Patents
A thermal power plant valve internal leakage detection deviceInfo
- Publication number
- CN223460280U CN223460280U CN202422665251.3U CN202422665251U CN223460280U CN 223460280 U CN223460280 U CN 223460280U CN 202422665251 U CN202422665251 U CN 202422665251U CN 223460280 U CN223460280 U CN 223460280U
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- valve
- detection
- internal leakage
- power plant
- thermal power
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Abstract
本实用新型涉及阀门内漏检测技术领域，具体公开了一种火电厂阀门内漏检测装置，包括进口管道，所述进口管道的一端设置有出口管道，所述出口管道的下方设置有定位板，所述定位板的内部固定连接有四个定位块，所述定位板的内部开设有四个圆孔，所述定位块的内部螺纹连接有紧固螺丝，所述圆孔的内部贯穿有传感器，所述进口管道表面的一侧开设有两个第一检测口；本实用新型通过传感器、第一检测口、密封条、紧固螺丝和定位块的搭配使用，使得阀门内漏检测工作能够稳定的进行，检测头在检测时保证其与进口管道和出口管道连接时的密封性，同时传感器受到损坏时能够及时更换，保证阀门内漏检测工作的顺利进行。
The present invention relates to the technical field of valve internal leakage detection, and specifically discloses a valve internal leakage detection device for a thermal power plant, comprising an inlet pipe, an outlet pipe being provided at one end of the inlet pipe, a positioning plate being provided below the outlet pipe, four positioning blocks being fixedly connected to the interior of the positioning plate, four circular holes being provided inside the positioning plate, fastening screws being connected to the internal threads of the positioning blocks, sensors being passed through the interiors of the circular holes, and two first detection ports being provided on one side of the surface of the inlet pipe; the present invention enables the valve internal leakage detection to be carried out stably through the use of the sensor, the first detection port, the sealing strip, the fastening screws and the positioning block, the detection head ensuring the sealing when connected to the inlet pipe and the outlet pipe during detection, and the sensor being able to be replaced in time when damaged, thereby ensuring the smooth progress of the valve internal leakage detection.
Description
Technical Field
The utility model belongs to the technical field of valve internal leakage detection, and particularly relates to a valve internal leakage detection device of a thermal power plant.
Background
The thermal power plant is a plant for producing electric energy by using combustible matters as fuel, and the basic production process is that fuel heats water to generate steam when in combustion, chemical energy of the fuel is converted into heat energy, steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, then the steam turbine drives a generator to rotate, the mechanical energy is converted into electric energy, in the whole fluid conveying system, a valve can be one of the most critical control components, the fluid conveying system can realize control on related actions such as fluid diversion, interception and decompression through effective application on the valve components, under the support of the current technical conditions, the common valve components of the thermal power plant can be divided into three types of an adjusting valve component, a hydrophobic valve component and a shutoff valve component according to different use types, but the valve plays a huge role in the process of stable operation of the whole thermal power plant, the internal leakage of the valve can not isolate and eliminate defects of equipment in operation, the life safety measures can not be executed to positions of serious working staff, the working media after heating and boosting are not utilized to directly leak off a land ditch, the high temperature and high-pressure can be discharged to the turbine directly by the high-pressure detector, the device can not leak down the current device when the thermal power plant is required to be detected, the existing in the condition that the vacuum pump is not leak can be detected, the condition is not be increased, the condition is required to be detected, the thermal power plant is not leak down to the existing in the device is required to be detected, and the device is not to be leaked down by the existing in the device is in the condition to be detected, improvements are needed.
In China patent with publication number CN215065101U, a device for detecting internal leakage of a valve in a thermal power plant is disclosed, the device comprises a valve, an inlet pipeline connected to an inlet of the valve and an outlet pipeline connected to an outlet of the valve, detection points are uniformly distributed on the inlet pipeline and the outlet pipeline, a sensor is arranged at the positions of the detection points and connected to a signal processor, the signal processor is used for receiving signals of the sensor and displaying processed detection values, the detection points are equidistantly arranged on two sides of the valve, a second detection point and a third detection point are used for detecting internal leakage of the valve, and a first detection point and a fourth detection point are used for eliminating influences of upstream and downstream sound sources. The severity of the internal leakage of the valve is judged by reading the sound values of the four measuring points, and the influence of the internal leakage of the upstream and downstream valves is eliminated, so that the method has the advantages of convenience in detection, low cost and high accuracy.
However, the above-mentioned technical scheme is that the sensor is fixed on inlet pipe and outlet pipe in advance when using, but if the sensor takes place certain damage through long-time use, will lead to the staff to be difficult to in time measure the interior hourglass of valve this moment, and the dismantlement and the change of sensor have also become a big difficult problem when the staff operates simultaneously, and the untimely sensor of changing will lead to the interruption of the interior hourglass detection work of valve, therefore a sensor with the dismouting structure of being convenient for also becomes important.
Disclosure of utility model
The utility model aims to provide a device for detecting internal leakage of a valve in a thermal power plant, which aims to solve the problem that the detection of the internal leakage of the valve is difficult to be carried out smoothly if a sensor provided in the background art is damaged and is not replaced in time.
In order to achieve the purpose, the technical scheme is that the internal leakage detection device of the valve of the thermal power plant comprises an inlet pipeline, wherein an outlet pipeline is arranged at one end of the inlet pipeline, a positioning plate is arranged below the outlet pipeline, four positioning blocks are fixedly connected to the inside of the positioning plate, four round holes are formed in the inside of the positioning plate, fastening screws are connected to the inner threads of the positioning blocks, the surface threads of the fastening screws penetrate through the inside of the round holes, a sensor penetrates through the inside of the round holes, two first detection ports are formed in one side of the surface of the inlet pipeline, and two second detection ports corresponding to the positions on the inlet pipeline are formed in one side of the surface of the outlet pipeline.
Preferably, two first threads are formed on one side of the surface of the inlet pipeline, a first positioning ring is connected with the surface threads of the first threads, two second threads are formed on one side of the surface of the outlet pipeline, a second positioning ring is connected with the surface threads of the second threads, a connecting hole is formed in the second positioning ring, and a sealing strip is fixedly connected to the inner side wall of the connecting hole.
Preferably, the top end of the sensor is fixedly connected with a detection head, and the surface of the detection head penetrates through the first detection port and the inside of the connection hole.
Preferably, a first fixing clamp is connected to the other side of the surface of the inlet pipeline, and a second fixing clamp is connected to the bottom of the first fixing clamp.
Preferably, the first fixing clamp is internally threaded with two fastening bolts, and the surface threads of the fastening bolts penetrate through the second fixing clamp.
Preferably, one end of the inlet pipeline far away from the first fixing clamp is connected with a valve, and the interior of the valve is connected with one end of the outlet pipeline close to the second positioning ring.
Preferably, the sensor is internally connected with a signal transmission head in a threaded manner, the bottom end of the signal transmission head is fixedly connected with a data wire, and the bottom end of the data wire is fixedly connected with a signal processor.
Preferably, the top fixedly connected with of first fixation clamp links up the pole, and the both ends of linking the pole all with the inside fixed connection of first fixation clamp.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The interior leak detection work of valve in the inside pipeline of thermal power plant can go on smoothly, can ensure staff's life safety to a certain extent, and the installation and the dismantlement work of sensor are comparatively convenient simultaneously, if the sensor receives the damage after, the timely change of staff of being convenient for, a plurality of measuring points of distribution when leaking in the simultaneous detection valve have further guaranteed the accuracy when measuring.
(2) After the detection head is inserted into the first detection port and the second detection port, the surface of the detection head is contacted with the sealing strip, so that the tightness of the detection head inserted into the inlet pipeline and the outlet pipeline is ensured, and certain deviation caused by leakage during detection of the detection ports is avoided.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of a probe head according to the present utility model;
FIG. 3 is a perspective view of a first retaining ring according to the present utility model;
FIG. 4 is a perspective view of a first port according to the present utility model;
FIG. 5 is a top view of the locating plate of the present utility model;
In the figure, 1, an inlet pipeline; 2, an outlet pipeline, 3, a positioning plate, 4, a positioning block, 5, a round hole, 6, a fastening screw, 7, a sensor, 8, a first detection port, 9, a first fixing clamp, 10, a second fixing clamp, 11, a valve, 12, a connecting rod, 13, a signal transmission head, 14, a data wire, 15, a signal processor, 16, a first positioning ring, 17, a second positioning ring, 18, a sealing strip, 19 and a detection head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
Referring to fig. 1 to 5, an internal leakage detection device for a valve of a thermal power plant includes an inlet pipe 1, an outlet pipe 2 is disposed at one end of the inlet pipe 1, a positioning plate 3 is disposed below the outlet pipe 2, four positioning blocks 4 are fixedly connected to the inside of the positioning plate 3, four round holes 5 are formed in the inside of the positioning plate 3, fastening screws 6 are connected to the internal threads of the positioning blocks 4, the surface threads of the fastening screws 6 penetrate through the inside of the round holes 5, a sensor 7 penetrates through the inside of the round holes 5, two first detection ports 8 are formed in one side of the surface of the inlet pipe 1, and two second detection ports corresponding to positions on the inlet pipe 1 are formed in one side of the surface of the outlet pipe 2. The staff screws up the fastening screw 6, will make the one end of fastening screw 6 fix the inside at round hole 5 this moment, and it should be noted that, sensor 7 is acoustic emission sensor, and the structure of import pipeline 1 and export pipeline 2 top is the same, is the design of mutual symmetry, and first detection mouth 8 and second detection mouth are located one side on import pipeline 1 and export pipeline 2 surface respectively, correspond each other.
The top of the sensor 7 is fixedly connected with a detection head 19, and the surface of the detection head 19 penetrates through the first detection port 8 and the inside of the connecting hole. When the sensor 7 is used by a worker for detection, the sensor 7 is placed in the round hole 5 to fix the sensor, and then the detection head 19 is inserted into the first detection port 8 and the second detection port in advance, so that the subsequent detection of liquid or gas in the inlet pipeline 1 and the outlet pipeline 2 by the sensor 7 is facilitated.
The other side of the surface of the inlet pipeline 1 is connected with a first fixing clamp 9, and the bottom of the first fixing clamp 9 is connected with a second fixing clamp 10.
The first fixing clip 9 is internally threaded with two fastening bolts, and the surface threads of the fastening bolts penetrate through the inside of the second fixing clip 10. Through the arrangement of the first fixing clamp 9, the second fixing clamp 10 and the fastening bolts, the whole device is connected with the inlet pipeline 1 and the outlet pipeline 2, the stability of other equipment is ensured, and the top of the positioning plate 3 is fixedly connected with the surface of the second fixing clamp 10.
The inlet pipeline 1 is connected with a valve 11 at one end far away from the first fixing clamp 9, and the interior of the valve 11 is connected with one end, close to the second positioning ring 17, of the outlet pipeline 2. The valve 11 connects the inlet pipe 1 and the outlet pipe 2, and the valve 11 has an opening and closing function on the gas or liquid flowing in the inlet pipe 1 and the outlet pipe 2.
The sensor 7 is internally connected with a signal transmission head 13 in a threaded manner, and the bottom end of the signal transmission head 13 is fixedly connected with a data line 14.
The bottom end of the data line 14 is fixedly connected with a signal processor 15, the top of the first fixing clamp 9 is fixedly connected with a connecting rod 12, and two ends of the connecting rod 12 are fixedly connected with the inside of the first fixing clamp 9. The signal transmission head 13 transmits signals to the inside of the signal processor 15 through the data wire 14, the signal processor 15 is an acoustic emission detector, and the two first fixing clamps 9 can be connected together through the arrangement of the connecting rod 12, and when one of the first fixing clamps 9 and the second fixing clamp 10 is connected through a fastening bolt, the connection of the other first fixing clamp 9 and the second fixing clamp 10 is more convenient.
Embodiment two:
Referring to fig. 3 and 4, two first threads are provided on one side of the surface of the inlet pipe 1, a first positioning ring 16 is connected to the surface threads of the first threads, two second threads are provided on one side of the surface of the outlet pipe 2, a second positioning ring 17 is connected to the surface threads of the second threads, a connecting hole is provided in the second positioning ring 17, and a sealing strip 18 is fixedly connected to the inner side wall of the connecting hole. Through the seting up of first screw thread and second screw thread, be convenient for first holding ring 16 and second holding ring 17 and inlet channel 1 and outlet channel 2's connection, the inner structure of first holding ring 16 and second holding ring 17 is the same, and all set up the connector, the installation of sealing strip 18 of being convenient for is fixed, through the setting of sealing strip 18, the leakproofness improves when inserting first detection mouth 8 and second detection mouth inside for detect head 19, the surface of inlet channel 1 is provided with two first holding rings 16, the surface of outlet channel 2 is provided with two second holding rings 17, from a left side to the right side set for first detection mouth 8 respectively, the second detects mouthful, third detects mouthful and fourth detects mouthful, the position of sensor 7 also corresponds with one.
The working principle of the utility model is as follows: after the first positioning ring 16 and the second positioning ring 17 are screwed on the surfaces of the inlet pipeline 1 and the outlet pipeline 2 in advance by a worker, the connecting holes in the first positioning ring 16 and the second positioning ring 17 correspond to the positions of the first detection port 8 and the second detection port, the worker then places one of the first fixing clamps 9 on the other side of the surface of the inlet pipeline 1 in advance, meanwhile, the inner side wall of the other first fixing clamp 9 is attached to the other side of the surface of the outlet pipeline 2, at the moment, the worker attaches the inner side walls of the two second fixing clamps 10 to the other sides of the surfaces of the inlet pipeline 1 and the outlet pipeline 2 respectively, then the worker screws on fastening bolts, finally, the first fixing clamp 9, the second fixing clamp 10 and the positioning plate 3 are connected with the inlet pipeline 1 and the outlet pipeline 2 successfully, then the worker respectively puts the sensor 7 into the round holes 5 in the positioning plate 3, and simultaneously jack up the sensor 7 upwards, then the detection head 19 is inserted into the first detection port 8 and the second detection port, then the worker screws the fastening screw 6, the sensor 7 is fixed, the detection head 19 is inserted into the first detection port 8 and the second detection port, then the detection of the internal leakage of the valve 11 is facilitated, if the sound values of the second first detection port 8 from left to right and the third second detection port are larger, the internal leakage of the valve 11 is avoided when the sound values of the first detection port 8 from left to right and the fourth second detection port from left to right are smaller, if the sound values of the first detection port 8 from left to right are larger, the internal leakage of the valve 11 is avoided when the sound is from upstream, if the sound values of the first detection port 8 from left to right and the fourth second detection port are larger, and the internal leakage of the valve 11 is avoided when the sound values of the first detection port 8 from left to right are larger The sound value of the first detection mouth 8 on the right side and the second detection mouth on the left side on the outlet pipeline 2 is smaller, when the sound value of the second detection mouth on the right side on the outlet pipeline 2 is larger, the valve 11 is not leaked, sound is from the downstream, detected data is transmitted to the data line 14 through the signal transmission head 13, finally, the detected data enter the signal processor 15 to process and analyze the detected data, if the sensor 7 is damaged, a worker closes the valve 11, the worker can timely unscrew the fastening screw 6 and then replace the new sensor 7, the worker is simple and convenient to operate, and the smooth performance of the sensor 7 on the detection work of the leakage in the valve 11 is ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a leak detection device in thermal power plant's valve, its characterized in that includes import pipeline (1), the one end of import pipeline (1) is provided with outlet pipe (2), the below of outlet pipe (2) is provided with locating plate (3), four locating pieces (4) are fixedly connected with in the inside of locating plate (3), four round holes (5) have been seted up to the inside of locating piece (3), the inside threaded connection of locating piece (4) has fastening screw (6), and the surface screw thread of fastening screw (6) runs through in the inside of round hole (5), the inside of round hole (5) runs through there is sensor (7), two first detection mouths (8) have been seted up to one side on import pipeline (1) surface, and two second detection mouths corresponding with the position on import pipeline (1) have been seted up to one side on outlet pipe (2) surface.
2. The internal leakage detection device for the valve of the thermal power plant according to claim 1, wherein two first threads are formed on one side of the surface of the inlet pipeline (1), the first threads are connected with a first positioning ring (16) through surface threads, two second threads are formed on one side of the surface of the outlet pipeline (2), the second positioning ring (17) is connected with surface threads of the second threads, a connecting hole is formed in the second positioning ring (17), and a sealing strip (18) is fixedly connected to the inner side wall of the connecting hole.
3. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 1, wherein the top end of the sensor (7) is fixedly connected with a detection head (19), and the surface of the detection head (19) penetrates through the first detection port (8) and the inside of the connecting hole.
4. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 1, wherein a first fixing clamp (9) is connected to the other side of the surface of the inlet pipeline (1), and a second fixing clamp (10) is connected to the bottom of the first fixing clamp (9).
5. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 4, wherein the first fixing clamp (9) is internally connected with two fastening bolts in a threaded manner, and the surface threads of the fastening bolts penetrate through the second fixing clamp (10).
6. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 1, wherein one end, far away from the first fixing clamp (9), of the inlet pipeline (1) is connected with a valve (11), and the interior of the valve (11) is connected with one end, close to the second positioning ring (17), of the outlet pipeline (2).
7. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 1, wherein the sensor (7) is internally connected with a signal transmission head (13) in a threaded manner.
8. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 7, wherein the bottom end of the signal transmission head (13) is fixedly connected with a data wire (14).
9. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 8, wherein the bottom end of the data line (14) is fixedly connected with a signal processor (15).
10. The device for detecting the internal leakage of the valve of the thermal power plant according to claim 4, wherein the top of the first fixing clamp (9) is fixedly connected with a connecting rod (12), and two ends of the connecting rod (12) are fixedly connected with the inside of the first fixing clamp (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422665251.3U CN223460280U (en) | 2024-11-01 | 2024-11-01 | A thermal power plant valve internal leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422665251.3U CN223460280U (en) | 2024-11-01 | 2024-11-01 | A thermal power plant valve internal leakage detection device |
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| CN223460280U true CN223460280U (en) | 2025-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202422665251.3U Active CN223460280U (en) | 2024-11-01 | 2024-11-01 | A thermal power plant valve internal leakage detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121253085A (en) * | 2025-12-04 | 2026-01-02 | 江苏明通福路流体控制设备有限公司 | Ball valve internal leakage detection device based on pressure sensor |
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2024
- 2024-11-01 CN CN202422665251.3U patent/CN223460280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121253085A (en) * | 2025-12-04 | 2026-01-02 | 江苏明通福路流体控制设备有限公司 | Ball valve internal leakage detection device based on pressure sensor |
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