CN220288927U

CN220288927U - Safety valve seal detector

Info

Publication number: CN220288927U
Application number: CN202321670356.7U
Authority: CN
Inventors: 刘晨; 高跃; 王林; 赵增晖; 靳兵; 任克京; 高绪镇; 朱宇环; 陈莹; 王丽燕; 江黎丽; 赵乾成; 林佳黛
Original assignee: Liaoning Inspection Examination and Certification Centre
Current assignee: Liaoning Inspection Examination and Certification Centre
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-01-02
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a safety valve sealing detector which comprises a safety valve checking table, a detected safety valve, a pressure gauge, a test pipeline, a sealing connection device and a sealing test device, wherein the detected safety valve is arranged on the safety valve checking table, the pressure gauge on the safety valve checking table is communicated with the detected safety valve, the sealing connection device is arranged between one side of the test pipeline and the outlet end side of the detected safety valve, and the other side of the test pipeline is connected with the sealing test device. The utility model has the advantages of no need of manually counting bubbles, high measurement precision, high automation degree, low labor intensity, lower requirements on responsibility, experience and operation capability of the check staff, and synchronous knowledge of the leakage rate of the safety valve.

Description

Safety valve seal detector

Technical Field

The utility model relates to a safety valve detector, in particular to a safety valve sealing detector, and belongs to the field of safety valve verification.

Background

According to the requirements of TSG ZF001 safety valve safety technology supervision regulations, the safety valve needs to be checked once a year, and the check items of the safety valve comprise setting pressure and sealing performance. Good, reliable sealing properties are a fundamental requirement for safety valves. Because once the safety valve leaks due to poor sealing performance, not only is the working medium lost, but the surrounding environment and the atmosphere are polluted by the working medium. Excessive leakage can even affect the proper operation of the equipment and system, and in severe cases can lead to equipment downtime. Continued leakage can also subject the sealing surfaces of the safety valve to corrosion, resulting in complete failure of the safety valve. The current safety valve sealing test method is a recommended method in GB/T12243-2021 spring direct load type safety valve, wherein the method is manual observation, counting and judging whether the safety valve is qualified or not, which results in high labor intensity and low efficiency, and only qualitative judgment of whether the safety valve is qualified or not, so that the leakage rate of the safety valve at the moment cannot be known.

Disclosure of Invention

The utility model aims to solve the problems that the labor intensity is high, the efficiency is low and the leakage rate of a safety valve cannot be known in manual observation and verification of the safety valve, improve the accuracy and the reliability of test results, and further provides a safety valve sealing detector.

The technical scheme adopted by the utility model for solving the problems is as follows:

the utility model provides a relief valve seal detector, includes relief valve check table, examined relief valve, manometer, test pipeline, sealing connection device and seal test device, and examined the relief valve and install on the relief valve check table, the manometer on the relief valve check table communicates with examined the relief valve, is equipped with sealing connection device between one side of test pipeline and the outlet end side of examined the relief valve, and the opposite side of test pipeline is connected with sealing test device.

Further, the sealing test device comprises a box body and a bubble generation and display module, wherein the bubble generation and display module comprises a leakage collecting pipe, a test water cup, a high-definition camera device, an observation window and a display table, the leakage collecting pipe, the test water cup and the high-definition camera device are installed in the box body, and the observation window and the display table are both located on the side wall of the box body.

Furthermore, one side of the leakage collecting pipe is communicated with the test pipeline, the other side of the leakage collecting pipe is inserted into the test water cup, and the high-definition camera device is arranged on the inner wall of the box body at the upper part of the test water cup.

Furthermore, the high-definition camera device is in communication connection with the display table.

Further, the observation window is arranged on the side wall of the box body at the outer side of the bubble generation part of the collecting drain pipe and the test water cup.

Further, the sealing test device further comprises an operation module and a real-time leakage rate display module, wherein the operation module is arranged below the bubble generation and display module, and the real-time leakage rate display module is arranged on the right side box wall of the operation module and the graphic display module.

Further, the sealing connection device comprises a caliper and a C-shaped clamp, an outlet of the detected safety valve is communicated with the test pipeline in a sealing mode through the caliper, and the C-shaped clamp is arranged on the caliper.

Further, the number of the C-shaped clamps is a plurality of, and the C-shaped clamps are uniformly distributed along the circumference of the caliper.

Further, a locking structure is arranged on the C-shaped clamp.

Further, the detected safety valve is vertically and fixedly connected with the safety valve checking table.

The beneficial effects of the utility model are as follows:

through the setting of sealing test device, need not artifical number bubble, measurement accuracy, degree of automation are high, and low in labor strength, and is lower to check personnel's responsibility, experience and operational capability requirement to can know the relief valve leak rate in step. Meanwhile, through the arrangement of the sealing connection device, the operation flow of installing the test pipeline is simplified, the installation is convenient and quick, and the inspection efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

FIG. 3 is a schematic view of an embodiment of a sealed connection.

In the figure: 1. a safety valve checking table; 2. a pressure gauge; 3. a fixing clamp; 4. a detected safety valve; 5. sealing the connecting device; 51. c-shaped clamp; 6. a test pipeline; 7. a seal test device; 71. a bubble generation and display module; 711. a collector drain pipe; 712. a test water cup; 72. a real-time leak rate display module; 73. and an operation module.

Detailed Description

The first embodiment is as follows: referring to fig. 1 to 3, a safety valve seal detector according to this embodiment includes a safety valve checking table 1, a safety valve to be checked 4, a pressure gauge 2, a test pipeline 6, a seal connection device 5, and a seal test device, wherein the safety valve to be checked 4 is mounted on the safety valve checking table 1, and preferably, the safety valve to be checked 4 is vertically mounted and fixed on the safety valve checking table 1 by a fixing clamp 3 on the safety valve checking table 1. The pressure gauge 2 on the safety valve checking table 1 is communicated with the checked safety valve 4, and the checking pressure is displayed in real time. A sealing connection device 5 is arranged between one side of the test pipeline 6 and the outlet end side of the tested safety valve 4, the sealing connection device 5 comprises a caliper and a C-shaped clamp 51, the outlet of the tested safety valve 4 is communicated with the test pipeline 6 in a sealing manner through the caliper, and the C-shaped clamp 51 is arranged on the caliper. Preferably, the caliper is a quick-mounting caliper, the number of the C-shaped clamps 51 is a plurality of the C-shaped clamps 51, the C-shaped clamps 51 are uniformly distributed along the circumferential direction of the caliper, and a locking structure (for example, an electromagnetic lock) is arranged on the C-shaped clamps 51. The flange at the outlet of the detected safety valve 4 is communicated with the test pipeline 6 through the quick-assembly calipers and the C-shaped clamp 51, the diameter of the flange at the outlet of the detected safety valve is convenient and quick, the diameter of the flange at the outlet of the detected safety valve is matched with various types, the efficiency is high, the automatic locking function is realized through an electromagnetic mode, the reliability is high, the leakage is avoided, the safety and the reliability are high, and the inspection efficiency can be improved.

The other side of the test pipeline 6 is connected with a sealing test device, the sealing test device comprises a box body and a bubble generation and display module 71, the bubble generation and display module 71 comprises a leakage collecting pipe 711, a test water cup 712, a high-definition camera device, an observation window and a display table, the leakage collecting pipe 711, the test water cup 712 and the high-definition camera device are installed in the box body, and the observation window and the display table are both located on the side wall of the box body. One side of the collecting and leaking pipe 711 is communicated with the test pipeline 6, the other side of the collecting and leaking pipe 711 is inserted into the test water cup 712, the preferred collecting and leaking pipe 711 has an outer diameter of 8mm and an inner diameter of 6mm, and the collecting and leaking pipe 711 is inserted into the test water cup 712 in a mode of being vertically inserted into the water surface to a depth of 12.5mm. By combining the requirements of national relevant standard regulations such as TSG ZF001-2006 safety valve safety technology supervision regulations, the size (pipe diameter, wall thickness and the like), liquid inlet angle, liquid inlet depth and the like of the collector tube 711 are strictly set according to the standard regulations, so that the compliance and effectiveness of the detection method are ensured. The high-definition camera device is arranged on the inner wall of the upper box body of the test cup 712 and is in communication connection with the display table, and the high-definition camera device records bubble generation images in real time to realize high-definition display. The observation window is arranged on the side wall of the box body outside the bubble generating position of the leakage collecting pipe 711 and the test water cup 712, human eyes can directly observe the process of generating bubbles in the equipment from the window of the water tank, and the device has a good visual verification means.

The sealing test device further comprises an operation module 73 and a real-time leakage rate display module 72, wherein the operation module 73 is arranged below the bubble generation and display module 71, the operation module 73 comprises an operation system, parameters such as sealing test pressure and flow channel diameter of a safety valve to be checked are input, the safety valve sealing test is started, and whether the safety valve is qualified or not can be judged automatically according to the results of the built-in logic and the bubble observation system through the input pressure and the diameter. If the safety valve has leakage, the leakage condition of the air bubble can be observed through the bubble generation and display module above, the real-time image is recorded through the high-definition camera device and displayed in the display table, the human eye can observe the generation process of the air bubble in the equipment pipeline through the display table, and the detection result can be automatically timed and automatically judged through an algorithm and logic in the operating system and synchronously displayed on the display table.

The judgment logic mainly comprises the following steps:

the seal test pressure retention times according to TSG ZF001-2006 safety valve safety technology supervision protocol are shown in the following table:

nominal diameter DN (mm)	Holding time (min)
		≤50	≥1
65-125	≥2
		≥150	≥5

When a safety valve seal test for gas is carried out according to GB/T12243-2021 spring direct load type safety valve, the leakage rate expressed by the number of leakage bubbles per minute is checked; the relief valve leakage rate of the metal seal face cannot exceed the values of the table below

If the sealing test is within the above range, the sealing test is judged to be qualified, and if the sealing test is not within the above range, the sealing test is judged to be unqualified.

The real-time leakage rate display module 72 is arranged on the right side wall of the operation module 73 and the bubble generation and display module 71, and according to the number and the size of the bubbles observed and recorded in the bubble generation and display module 71 and the operation module 73, the leakage rate of an accurate sealing test can be obtained through the number and the size of the bubbles by self-learning analysis through an intelligent analysis system based on a neural network in a built-in operation system and displayed through a display table.

Working principle:

the safety valve to be detected is vertically installed and fixed on the safety valve checking table through a fixing clamp on the safety valve checking table, the flange at the outlet of the safety valve to be detected is communicated with the calipers in a sealing manner, the other end of the calipers is communicated with a test pipeline, the C-shaped clamp can further compress the flange and the calipers, and the test pipeline is communicated with the sealing test device. Through the generation, analysis and the demonstration of the steam pocket in the sealing test device, need not the manual work and count the bubble, can know the relief valve leak rate in step, measurement accuracy, degree of automation are high.

The present utility model is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other embodiments, such as those described above, of making various modifications and equivalents will fall within the spirit and scope of the present utility model.

Claims

1. The utility model provides a relief valve seal detector, includes relief valve check table (1), examined relief valve (4), manometer (2), test pipeline (6), sealing connection device (5) and seal test device (7), is examined relief valve (4) and installs on relief valve check table (1), manometer (2) on relief valve check table (1) communicate with examined relief valve (4), its characterized in that: a sealing connection device (5) is arranged between one side of the test pipeline (6) and the outlet end side of the tested safety valve (4), and the other side of the test pipeline (6) is connected with a sealing test device (7).

2. The safety valve seal detector according to claim 1, wherein: the sealing test device (7) comprises a box body and a bubble generation and display module (71), the bubble generation and display module (71) comprises a leakage collecting tube (711), a test water cup (712), a high-definition camera device, an observation window and a display table, the leakage collecting tube (711), the test water cup (712) and the high-definition camera device are installed in the box body, and the observation window and the display table are both located on the side wall of the box body.

3. The safety valve seal detector according to claim 2, wherein: one side of the drain collecting pipe (711) is communicated with the test pipeline (6), the other side of the drain collecting pipe (711) is inserted into the test water cup (712), and the high-definition camera device is arranged on the inner wall of the box body at the upper part of the test water cup (712).

4. A safety valve seal detector according to claim 3, wherein: the high-definition camera device is in communication connection with the display table.

5. The safety valve seal detector according to claim 2, wherein: the observation window is arranged on the side wall of the box body outside the bubble generating position of the collecting and leaking pipe (711) and the test water cup (712).

6. The safety valve seal detector according to claim 2, wherein: the sealing test device (7) further comprises an operation module (73) and a real-time leakage rate display module (72), wherein the operation module (73) is arranged below the bubble generation and display module (71), and the real-time leakage rate display module (72) is arranged on the right side box wall of the operation module (73) and the bubble generation and display module (71).

7. The safety valve seal detector according to claim 1, wherein: the sealing connection device (5) comprises a caliper and a C-shaped clamp (51), an outlet of the detected safety valve (4) is communicated with the test pipeline (6) in a sealing mode through the caliper, and the C-shaped clamp (51) is arranged on the caliper.

8. The safety valve seal detector according to claim 7, wherein: the number of the C-shaped clamps (51) is a plurality of, and the C-shaped clamps (51) are uniformly distributed along the circumferential direction of the caliper.

9. The safety valve seal detector according to claim 8, wherein: the C-shaped clamp (51) is provided with a locking structure.

10. The safety valve seal detector according to claim 1, wherein: the detected safety valve (4) is vertically and fixedly connected with the safety valve checking table (1).