Perfluorohexanone fire extinguishing device sealing performance detection device

Abstract

The invention discloses a perfluorohexanone fire extinguishing device sealing performance detection device, which comprises a detection box, a vibration table, a power unit, a detection container, a detection frame unit and a negative pressure assembly, and is characterized in that the power unit is connected to the bottom surface of the sealed detection box, and the output end of the power unit is connected with a vertically arranged driving plate; a vibrating plate of the vibrating table is connected to the bottom surface of the detection box in a lifting manner, the vibrating plate is erected above the power unit, and the driving plate is always in contact with the bottom surface of the vibrating plate; the detection frame unit comprises a plurality of fixing rings used for placing units to be detected, the fixing rings are located above the plurality of detection containers, during detection, the detection frame unit is in sealed connection with the detection containers, the detection frame unit synchronously vibrates along with the detection containers, and the negative pressure assembly is connected with the top of the detection box and is communicated with the detection box. The method has the beneficial effects that the time required for detection is greatly shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of fire-fighting equipment detection, in particular to a sealing performance detection device for a perfluorohexanone fire extinguishing device. Background Art

[0002] Perfluorohexanone fire extinguishing device is a fire-fighting equipment that uses perfluorohexanone as a fire extinguishing agent. It uses perfluorohexanone to extinguish fires through the dual effects of heat absorption and chemical inhibition. It can quickly evaporate and absorb heat, reducing the temperature of the fire scene, while interfering with the combustion chain reaction and suppressing the flame. It is commonly used in data centers, archives and power facilities.

[0003] Publication No.: CN111999006A - A fire extinguisher tank sealing detection device, which transports the tank to a placement piece on a conveyor belt through a loading device. When a certain number of tanks on the conveyor belt are reached, the pushing device pushes the tank to a tank inflation device, which fixes the bottle mouth and inflates the tank. Finally, the lifting device is started to drive the water tank up so that the tank is inside the water tank. Check whether there are bubbles in the water tank, thereby enabling the tank sealing to be tested. This is not only efficient but also saves manpower.

[0004] Publication number: CN118050123A - A fire extinguisher sealing detection device, which first adopts a pre-spraying method to squeeze out the gas in the pores or cracks on the surface of the fire extinguisher before the fire extinguisher is immersed in the water tank, thereby reducing the probability of personnel making wrong judgments during the subsequent sealing detection process. At the same time, it can automatically adjust the direction of the fixing frame and the fire extinguisher according to the spraying process, so that the spraying, loading and unloading and sealing detection of the fire extinguisher can be carried out under appropriate conditions. Finally, when the fire extinguisher sealing detection work is carried out, the bubbles generated by the fire extinguisher can be retained in the water tank through the blocking of the transparent cover, so that the bubbles cannot directly rise to the water surface and merge into the air, reducing the probability of personnel making wrong judgments due to failure to timely discover the generation of bubbles.

[0005] In the existing technology, the method for detecting the sealing of fire extinguishing devices is mainly to immerse the fire extinguishing device in water and observe the bubbles to determine whether the fire extinguisher has a leak. This detection method usually takes a long time. At the same time, if an observation is missed during the detection process, it is easy to make a wrong judgment. Although the bubbles generated by the fire extinguisher can be retained in the water tank through a transparent cover, the existing detection structure makes it difficult to cover the entire fire extinguishing device, which is very easy to make a wrong judgment.

[0006] The information disclosed in this background section is only intended to enhance understanding of the overall background of the invention and should not be considered as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: how to solve the problem that the current method for detecting the sealing of fire extinguishing devices takes a long time to detect, is prone to missed observations, and leads to misjudgment.

[0008] The present invention solves the above technical problems through the following technical means:

[0009] The sealing performance testing device of perfluorohexanone fire extinguishing device includes a testing box, a vibration table, a power unit, a testing container, a testing frame unit, and a negative pressure component; the testing box includes a box body, a water inlet pipe is fixedly connected to the side wall of the box body, and a first solenoid valve is fixedly connected to the water inlet pipe near the opening of the side wall of the box body; the power unit is connected to the bottom surface of the sealed testing box, the output end of the power unit is connected to the vertically arranged driving plate, the vibration plate of the vibration table is connected to the bottom surface of the testing box in a lifting manner, the vibration plate is mounted above the power unit, and the driving plate is always in contact with the bottom surface of the vibration plate; a plurality of electric The slide rail and the upper end opening of the electric slide rail are fixedly connected with a limit block that matches itself, and the end of the detection frame unit is connected to the electric slide rail; the detection frame unit includes a plurality of fixing rings for placing the units to be detected, and the fixing rings are located above the corresponding detection containers. During detection, the detection frame unit is sealed and connected to the detection container, and the detection frame unit vibrates synchronously with the detection container. The negative pressure component is connected to the top of the detection box and communicates with it; the negative pressure component includes a negative pressure pipe and a corrugated connecting pipe. One end of the negative pressure pipe is connected to the top of the detection box and communicates with the inside of the detection box, and the other end of the negative pressure pipe is connected to the corrugated connecting pipe.

[0010] During the sealing test process, the present invention utilizes the cooperation of the vibration table and the power unit to put the fire extinguishing device into a periodic vibration state. When there is a local leakage in the fire extinguishing device, the generation of bubbles will be accelerated, which will greatly shorten the time required for the test and improve the test efficiency. The test container and the test frame unit form a sealed space, which makes it easy to observe the bubble changes. At the same time, before the test begins, the negative pressure environment is utilized to greatly reduce the dissolved air in the test water itself, so it is not easy to stir up the dissolved air during the movement of the fire extinguishing device, and it is not easy to affect the accuracy of the test.

[0011] Preferably, the power unit further includes a vibration motor and a motor base, the motor base is connected to the bottom surface inside the detection box, the vibration motor is connected to the motor base, and the output end of the vibration motor is connected to the drive plate.

[0012] The vibration motor drives the driving plate to rotate evenly, thereby causing the vibration plate to vibrate periodically.

[0013] Preferably, the vibration table further includes a limiting rod, a plurality of limiting rods are distributed at intervals, and the vibration plate is slidably connected to the limiting rods.

[0014] The limiting rod is used to connect the vibration plate and guide the vibration plate so that the vibration plate can slide axially along the limiting rod.

[0015] Preferably, the plurality of fixing rings are arranged in a linear or matrix manner, and adjacent fixing rings are connected by a connecting frame.

[0016] Multiple fixing rings can realize simultaneous detection of multiple units to be detected, thereby improving detection efficiency.

[0017] Preferably, sliding grooves are respectively provided on both sides of the fixed ring, and a vertically arranged limit column is connected to the sliding groove. The top end of the limit column is slidably connected to the sliding block. A compression spring is sleeved on the limit column, and the top end of the compression spring abuts the bottom surface of the sliding block, and the bottom end of the compression spring abuts the bottom surface of the sliding groove; the sliding block is connected to the connecting frame.

[0018] The detection frame unit can drive the unit to be detected to move. At the same time, during the detection process, when the connecting frame is fixed, due to the setting of the compression spring, the fixing ring and the unit to be detected can still move up and down with the vibration table.

[0019] Preferably, the ends of the connecting frame connected to the fixing rings at the head and tail ends are connected to the electric slider, and the electric slider is connected to the electric slide rail in the box.

[0020] The detection rack unit moves up and down through the electric slider and electric slide rail, and the movement process is stable.

[0021] Preferably, the outer ring of the fixing ring is a stepped structure, and a sealing rubber ring is connected at the step. When the fixing ring moves to the top of the detection container and engages with the top opening of the detection container, the sealing rubber ring contacts the top of the detection container, thereby forming a sealed environment.

[0022] Preferably, the unit to be detected includes a fire extinguishing device body and a connecting ring. The top of the fire extinguishing device body is sleeved with the connecting ring. The connecting ring is adapted to the shape of the sealing groove on the top of the fixing ring, so that the connecting ring is just clamped in the sealing groove to form a sealing structure.

[0023] Preferably, a hanging ring is provided on the top cover.

[0024] Preferably, the detection container includes a container body, a liquid outlet pipe, a second solenoid valve, and a hydraulic sensor; the bottom of the container body is fixed on a connecting vibration plate, the side wall of the container body is connected to the liquid outlet pipe, the liquid outlet pipe is fixedly connected to the second solenoid valve, and the vibration plate is fixedly connected to multiple hydraulic sensors matching the position of the container body.

[0025] The present invention designs a liquid outlet for the detection container. When the gas runs to the fixed ring, the detection water will be squeezed and discharged from the liquid outlet, thereby reducing the possibility of the leaked gas from the fire extinguishing device dissolving again in the detection water, reducing the impact on the detection. On the other hand, a hydraulic sensor is introduced, which can assist the detection personnel in making a judgment on the sealing test through hydraulic detection, thereby increasing the accuracy and efficiency of the detection.

[0026] The advantages of the present invention are:

[0027] During the sealing test process, the present invention utilizes the cooperation of the vibration table and the power unit to put the fire extinguishing device into a periodic vibration state. When there is a local leakage in the fire extinguishing device, the generation of bubbles will be accelerated, which will greatly shorten the time required for the test and improve the test efficiency. The test container and the test frame unit form a sealed space, which makes it easy to observe the bubble changes. At the same time, before the test begins, the negative pressure environment is utilized to greatly reduce the dissolved air in the test water itself, so it is not easy to stir up the dissolved air during the movement of the fire extinguishing device, and it is not easy to affect the accuracy of the test.

[0028] The present invention designs a liquid outlet for the detection container. When the gas runs to the fixed ring, the detection water will be squeezed and discharged from the liquid outlet, thereby reducing the possibility of the leaked gas from the fire extinguishing device dissolving again in the detection water, reducing the impact on the detection. On the other hand, a hydraulic sensor is introduced, which can assist the detection personnel in making a judgment on the sealing test through hydraulic detection, thereby increasing the accuracy and efficiency of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 2 is a schematic structural diagram of a device for detecting the sealing performance of a perfluorohexanone fire extinguishing device according to an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 Enlarged view of point B in the middle;

[0031] Figure 3 This is an exploded view of a sealing performance testing device for a perfluorohexanone fire extinguishing device according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the interior of a sealing performance testing device for a perfluorohexanone fire extinguishing device according to an embodiment of the present invention;

[0033] Figure 5 This is an internal cross-sectional view of a sealing performance testing device for a perfluorohexanone fire extinguishing device according to an embodiment of the present invention;

[0034] Figure 6 2 is a schematic structural diagram of a detection rack unit according to an embodiment of the present invention;

[0035] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0036] Figure 8 This is a detailed diagram of a detection rack unit according to an embodiment of the present invention;

[0037] Figure 9 is a schematic structural diagram of a unit to be detected according to an embodiment of the present invention;

[0038] Figure 10 It is a schematic diagram of the operation of the sealing performance detection device of the perfluorohexanone fire extinguishing device according to an embodiment of the present invention.

[0039] Numbers in the figure:

[0040] 1. Detection box; 11. Box body; 111. Pipe hole; 12. Top cover;

[0041] 2. Vibration table; 21. Vibration plate; 22. Limit rod;

[0042] 3. Power unit; 31. Drive plate; 32. Vibration motor; 33. Motor base;

[0043] 4. Detection container; 41. Container body; 42. Liquid outlet pipe; 43. Second solenoid valve; 44. Hydraulic pressure sensor;

[0044] 5. Detection frame unit; 51. Fixed ring; 511. Sliding groove; 512. Limiting column; 513. Sliding block; 514. Compression spring; 515. Sealing groove; 52. Connecting frame; 53. Sealing rubber ring;

[0045] 6. Unit to be tested; 61. Fire extinguishing device body; 62. Connecting ring; 621. Missing groove;

[0046] 7. Negative pressure assembly; 71. Negative pressure pipe; 72. Corrugated connecting pipe;

[0047] 8. Limit block;

[0048] 9. Bubbles. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] Example 1:

[0051] like Figure 1 、 Figure 3 、 Figure 4As shown, a sealing performance testing device for a perfluorohexanone fire extinguishing device includes a test box 1, the bottom surface of the test box 1 is connected to a power unit 3, the output end of the power unit 3 is a driving plate 31 that can rotate in a vertical plane, the bottom surface of the test box 1 is also connected to a vibration table 2, the vibration table 2 is located above the power unit 3, and the rotation of the driving plate 31 can drive the vibration plate 21 of the vibration table 2 to move up and down synchronously; a plurality of test containers 4 are connected to the vibration plate 21, and the test container 4 is used to place a unit to be tested 6; the interior of the test box 1 is also connected to a test frame unit 5, and the test frame unit 5 includes a plurality of fixing rings 51, each fixing ring 51 is placed with a unit to be tested 6, the fixing ring 51 is located directly above the test container 4, and the fixing ring 51 corresponds to the test container 4 one by one. After the test is started, the test frame unit 5 can move downward along the height direction of the test box 1, thereby driving the unit to be tested 6 to be placed into the test container 4.

[0052] Specifically, the detection box 1 includes a box body 11 and a top cover 12; the box body 11 is a rectangular cavity structure with an empty top, and the top cover 12 is connected to the top of the box body 11. After the top cover 12 and the box body 11 are connected, a sealing structure is formed; Figure 4 As shown, a pipe hole 111 is provided on the side wall of the housing 11. A water inlet pipe is connected to the pipe hole 111. The water inlet pipe is connected to a first solenoid valve. The water inlet pipe is used to pass water into the interior of the test housing 1. One end of the water inlet pipe is connected to a water pump for injecting test water into the housing 11. During the test process, the water pump can be placed in a remote location to reduce external interference with the perfluorohexanone fire extinguishing device sealing performance test device.

[0053] In this embodiment, the detection box 1 is made of transparent material to facilitate observation.

[0054] In this embodiment, the top of the detection box 1 is also connected to a negative pressure component 7, which is used to evacuate the inside of the detection box 1 so that the gas can overflow faster. Figure 5 As shown, specifically, the top cover 12 is connected to the negative pressure assembly 7 .

[0055] The negative pressure assembly 7 includes a negative pressure pipe 71, and the negative pressure pipe 71 connects the upper and lower sides of the top cover 12. The end of the negative pressure pipe 71 away from the top cover 12 is fixedly connected to a corrugated connecting pipe 72, and the end of the corrugated connecting pipe 72 away from the negative pressure pipe 71 is fixedly connected to a negative pressure fan.

[0056] The negative pressure component 7 can greatly reduce the dissolved air in the detection water itself, and it is not easy to stir up the dissolved air during the movement of the fire extinguishing device body 61, which is not easy to affect the accuracy of the detection.

[0057] like Figure 1As shown, the vibration table 2 also includes a plurality of limit rods 22, and the limit rods 22 are preferably evenly distributed. For example, in this embodiment, four limit rods 22 are vertically connected to the bottom surface of the box body 11 and are distributed in a rectangular shape, and the vibration plate 21 is slidably connected to the limit rods 22, that is, the vibration plate 21 can move up and down along the limit rods 22.

[0058] like Figure 1 、 Figure 5 As shown, the power unit 3 includes a drive plate 31, a vibration motor 32, and a motor base 33. The motor base 33 is connected to the bottom surface of the box body 11, and preferably the motor base 33 is located at the center of the bottom surface of the box body 11. The vibration motor 32 is connected to the motor base 33, and the output end of the vibration motor 32 is arranged horizontally. The output end of the vibration motor 32 is connected to the drive plate 31. The drive plate 31 can be an elliptical plate, a cam plate or an eccentric plate. The drive plate 31 is set vertically, and the edge of the drive plate 31 can always be in contact with the vibration plate 21. In this way, during the rotation of the drive plate 31, the vibration plate 21 can be driven to move up and down, thereby generating vibration, accelerating the leakage rate, and achieving the purpose of completing the sealing test in a short time. The drive plate 31 is in contact with the center area of ​​the vibration plate 21.

[0059] like Figure 4 As shown, the detection container 4 is a cylindrical container with an empty top.

[0060] like Figure 6 、 Figure 7 、 Figure 8 As shown, the detection rack unit 5 includes a plurality of fixed rings 51, which are all arranged horizontally. The central axis of each fixed ring 51 roughly coincides with the central axis of the detection container 4, and the distance between the two central axes does not exceed 3 mm. A sliding groove 511 is provided on each side of the fixed ring 51. The sliding groove 511 is a rectangular groove. A limiting post 512 is connected to the interior of the sliding groove 511. The limiting post 512 is arranged in a vertical direction. The top of the limiting post 512 is connected to a sliding block 513. The sliding block 513 can slide along the axial direction of the limiting post 512. A compression spring 514 is sleeved on the limiting post 512. The top end of the compression spring 514 abuts the sliding block 513, and the bottom end of the compression spring 514 abuts the bottom surface of the sliding groove 511. Under normal circumstances, the compression spring 514 will abut the sliding block 513 to the top of the sliding groove 511, so that the top surface of the sliding block 513 contacts the top surface of the sliding groove 511.

[0061] Adjacent fixing rings 51 are connected by a connecting frame 52. The two ends of the connecting frame 52 located between adjacent fixing rings 51 are respectively connected to the sliding blocks 513 at the two ends of the two fixing rings 51. The fixing rings 51 at the head and tail ends are connected to the electric slide rails 13 inside the box body 11 through the connecting frame 52. Figure 5As shown, the connecting frame 52 connected to the sliding blocks 513 at both ends extends toward the side wall of the box 11. The end of the connecting frame 52 is connected to the electric slider 521. The electric slide rail 13 is connected to the side wall of the box 11. The electric slider 521 matches the electric slide rail 13. The connecting frame 52 can connect multiple fixing rings 51 into a whole and achieve a sliding connection with the box 11. Under the drive of an external force, the detection frame unit 5 can drive the unit to be detected 6 to move up and down.

[0062] The upper openings of the electric slide rails 13 are fixedly connected with matching limit blocks 8 for limiting the travel of the electric slide rails 13 .

[0063] The electric slider 521 and the electric slide rail 13 in this embodiment can be structures capable of achieving linear motion, such as linear electric modules, and can be made from existing technologies.

[0064] The presence of the compression spring 514 in this embodiment allows the entire fixed ring 51 to move within a certain range relative to the connecting frame 52, and the detection frame unit 5 can drive the unit to be detected 6 to move. At the same time, during the detection process, the sliding block 513 and the compression spring 514 can cooperate with each other. After the position of the connecting frame 52 is fixed, the fixed ring 51 and the unit to be detected 6 can still move to a certain extent with the vibration table 2.

[0065] The outer ring of the fixing ring 51 has a stepped structure, with a larger outer diameter at the top and a smaller outer diameter at the bottom. A sealing rubber ring 53 is connected to the stepped structure. When the fixing ring 51 moves to the top of the detection container 4 and engages with the top opening of the detection container 4, the sealing rubber ring 53 contacts the top of the detection container 4 and is compressed to a certain extent. Even during the vibration of the vibration table 2, a certain degree of sealing can still be maintained. A sealing rubber ring 53 with high elasticity is preferred.

[0066] A sealing groove 515 is opened at the top of the inner ring of the fixing ring 51. The sealing groove 515 is used to cooperate with the unit to be detected 6. That is, after the unit to be detected 6 is inserted into the fixing ring 51, the upper structure of the unit to be detected 6 can be stuck in the sealing groove 515, thereby realizing the connection between the fixing ring 51 and the unit to be detected 6.

[0067] like Figure 9 As shown, the unit to be detected 6 includes a fire extinguishing device body 61 and a connecting ring 62. The top of the fire extinguishing device body 61 is sleeved with the connecting ring 62. The connecting ring 62 is adapted to the shape of the sealing groove 515 on the top of the fixing ring 51, so that the connecting ring 62 is just snapped into the sealing groove 515. By utilizing the cooperation between the connecting ring 62 and the sealing groove 515, the sealing between the detection frame unit 5 and the unit to be detected 6 is achieved, thereby increasing the accuracy of the detection.

[0068] The connecting ring 62 itself has a certain elasticity. The connecting ring 62 is an annular structure, and a plurality of notches 621 are provided on the upper part of its inner ring. The notches 621 enable the connecting ring 62 to maintain a certain sealing performance. When the connecting ring 62 is sleeved on the fire extinguishing device body 61, the connecting ring 62 has a tendency to shrink, which allows the connecting ring 62 to tightly embrace the fire extinguishing device body 61, thereby increasing the fixing strength of the connecting ring 62 and the fire extinguishing device body 61, making it difficult for the fire extinguishing device body 61 to separate from the connecting ring 62 under the action of its own weight. At the same time, the opening of the notches 621 facilitates disassembly and facilitates the separation of the fire extinguishing device body 61 and the connecting ring 62.

[0069] The working process of this embodiment:

[0070] When the seal of the fire extinguishing device body 61 needs to be tested, multiple units to be tested 6 are inserted into the test frame unit 5. Gravity allows the connecting ring 62 of the units to be tested to be tightly connected to the fixing ring 51, maintaining a certain degree of sealing. Testing water, which meets the standard of tap water for residential use, is then injected into the box 11 through the water inlet pipe until the testing water covers the upper side of the fire extinguishing device body 61. The first solenoid valve is closed, and the top cover 12 is moved to the upper side of the test box 1 using an electric hoist or other electric crane. The test box 1 and the top cover 12 form a relatively sealed testing environment. In this embodiment, the water only needs to cover the fire extinguishing device body 61.

[0071] Afterwards, the negative pressure component 7 is started and maintained for 10 to 15 minutes, so that a negative pressure environment is formed above the test water. The dissolved air in the test water will quickly overflow under the action of negative pressure, which greatly reduces the dissolved air content of the test water and is not easy to overflow during the sealing test, affecting the accuracy of the test. Afterwards, the electric slider 521 is used to move multiple groups of test frame units 5 to the corresponding test containers 4, so that the test containers 4, the fixing ring 51 and the unit to be tested 6 form a relatively sealed test environment, completing the preparation work.

[0072] Start the vibration motor 32 to perform a sealing test. The power output end of the vibration motor 32 drives the driving plate 31 to rotate, and the driving plate 31 will periodically push the vibration plate 21 up or drive it down, thereby providing a vibration environment for the unit to be tested 6. When there is a sealing problem with the unit to be tested 6, the bubbles 9 generated will gather at the connection between the fixing ring 51 and the fire extinguishing device body 61. During the detection process, it can be judged whether there is a sealing problem with the fire extinguishing device body 61 placed in the current detection container 4 by observing whether there is air between the fixing ring 51 and the fire extinguishing device body 61.

[0073] After the vibration motor 32 has been working for 20 to 30 minutes, the vibration motor 32 is stopped, the first solenoid valve is opened, and the excess test water is released. The electric slider 521 is then used to move the unit to be tested 6 upward, making it convenient for the staff to remove the unit to be tested 6 and then perform the next sealing test.

[0074] Compared with the prior art, during the sealing test, this embodiment utilizes the cooperation of the vibration table 2 and the power unit 3 to put the fire extinguishing device body 61 in a periodic vibration state. When there is a local leakage in the fire extinguishing device body 61, the generation of bubbles 9 will be accelerated, which will greatly shorten the time required for the test and improve the test efficiency. At the same time, before the test begins, the negative pressure environment is utilized to greatly reduce the dissolved air in the test water itself, so that it is not easy to stir up the dissolved air during the movement of the fire extinguishing device body 61, and it is not easy to affect the accuracy of the test.

[0075] Example 2:

[0076] like Figure 2 As shown, in this embodiment, based on the first embodiment, the detection container 4 includes a container body 41, the bottom of the container body 41 is fixedly connected to the vibration plate 21, a hole is opened at the bottom of the side wall of the container body 41, a liquid outlet pipe 42 is fixedly connected in the hole, a second solenoid valve 43 matching the liquid outlet pipe 42 is fixedly connected in the liquid outlet pipe 42, and a plurality of hydraulic sensors 44 matching the position of the container body 41 are fixedly connected to the vibration table 2.

[0077] See also Figure 10 During the sealing test, the liquid outlet pipe 42 is in an open state. The gas released by the fire extinguishing device body 61 due to the sealing problem will float to the connection position between the fixing ring 51 and the fire extinguishing device body 61, and at the same time, it will force part of the liquid to flow out from the liquid outlet pipe 42, so that the gas can easily form an air layer at the connection position between the fixing ring 51 and the fire extinguishing device body 61, which is convenient for staff to observe. Compared with the first embodiment, under the action of hydraulic pressure and air pressure, it is not easy to cause a large amount of gas to dissolve in the test water, which is not easy to affect the observation.

[0078] After the sealing test is completed and before the water is drained from the water inlet pipe, the second solenoid valve 43 is closed. After the water outside the multiple detection containers 4 is completely drained, the hydraulic pressure in the detection container 4 is detected by the hydraulic sensor 44. The size of the sealing problem of the fire extinguishing device body 61 in the current detection container 4 is judged according to the size of the hydraulic pressure. The smaller the hydraulic pressure reading, the more gas is leaked and the greater the sealing problem of the current fire extinguishing device body 61. Conversely, the larger the hydraulic pressure reading, the less gas is leaked and the smaller the sealing problem of the current fire extinguishing device body 61. In particular, before the sealing test, multiple standard experiments and measurements can be carried out, and the detection data of the hydraulic sensor 44 when the fire extinguishing device body 61 has no sealing problems and the detection container 4 is full of detection water are used as standard data to provide detection standards for detection personnel.

[0079] Compared with the first embodiment, this embodiment designs a liquid outlet pipe 42 for the detection container 4 on the one hand, so as to reduce the leakage of the fire extinguishing device gas that is redissolved in the detection water and reduce the impact on the detection; on the other hand, the introduction of a hydraulic sensor 44 can assist the detection personnel in making the judgment of the sealing test through hydraulic detection, thereby increasing the accuracy and efficiency of the detection.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A perfluorohexanone fire extinguishing device sealing performance detection device, characterized in that: It comprises a detection box (1), a vibration table (2), a power unit (3), a detection container (4), a detection frame unit (5), and a negative pressure component (7); The detection box (1) comprises a box body (11), a water inlet pipe is fixedly connected to the side wall of the box body (11), and a first electromagnetic valve is fixedly connected to the water inlet pipe near the opening of the side wall of the box body (11); a power unit (3) is connected to the bottom surface of the sealed detection box (1), an output end of the power unit (3) is connected to a vertically arranged driving plate (31), a vibration plate (21) of a vibration table (2) is connected to the bottom surface of the detection box (1) in a manner that it can be raised and lowered, the vibration plate (21) is mounted above the power unit (3), and the driving plate (31) is always in contact with the bottom surface of the vibration plate (21); A plurality of electric slide rails are provided on the side walls of the box body (11), and the upper openings of the electric slide rails are fixedly connected with limit blocks (8) that match the electric slide rails, and the ends of the detection frame units (5) are connected to the electric slide rails; The detection rack unit (5) includes a plurality of fixing rings (51) for placing the units to be detected (6). The fixing rings (51) are located above the corresponding detection containers (4). During detection, the detection rack unit (5) is sealed and connected to the detection container (4). The detection rack unit (5) vibrates synchronously with the detection container (4). The negative pressure component (7) is connected to the top of the detection box (1) and communicates with it. The negative pressure assembly (7) comprises a negative pressure tube (71) and a corrugated connecting tube (72). One end of the negative pressure tube (71) is connected to the top of the detection box (1) and communicates with the interior of the detection box (1), and the other end of the negative pressure tube (71) is connected to the corrugated connecting tube (72).

2. The perfluorohexanone fire extinguishing device sealing performance detection device according to claim 1, characterized in that: The power unit (3) further comprises a vibration motor (32) and a motor base (33). The motor base (33) is connected to the bottom surface inside the detection box (1). The vibration motor (32) is connected to the motor base (33). The output end of the vibration motor (32) is connected to the driving plate (31).

3. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The vibration table (2) also includes a limiting rod (22), a plurality of limiting rods (22) are distributed at intervals, and the vibration plate (21) is slidably connected to the limiting rod (22).

4. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 1, characterized in that: A plurality of fixing rings (51) are arranged in a linear or matrix manner, and adjacent fixing rings (51) are connected via a connecting frame (52).

5. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 4, characterized in that: A sliding groove (511) is respectively provided on both sides of the fixing ring (51), and a vertically arranged limiting column (512) is connected in the sliding groove (511). The top end of the limiting column (512) is slidably connected to the sliding block (513). A compression spring (514) is sleeved on the limiting column (512), and the top end of the compression spring (514) abuts against the bottom surface of the sliding block (513), and the bottom end of the compression spring (514) abuts against the bottom surface of the sliding groove (511); the sliding block (513) is connected to the connecting frame (52).

6. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 4, characterized in that: The ends of the connecting frame (52) connected to the fixing rings (51) at the head and tail ends are connected to the electric slider, and the electric slider is connected to the electric slide rail in the box body (11).

7. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 4, characterized in that: The outer ring of the fixing ring (51) is a stepped structure, and the sealing rubber ring (3) is connected at the step. When the fixing ring (51) moves to the top of the detection container (4) and is engaged with the top opening of the detection container (4), the sealing rubber ring (3) contacts the top of the detection container (4).

8. The sealing performance detection device for perfluorohexanone fire extinguishing device according to claim 4, characterized in that: The unit to be detected (6) comprises a fire extinguishing device body (61) and a connecting ring (62). The top of the fire extinguishing device body (61) is sleeved with the connecting ring (62). The connecting ring (62) is adapted in shape to the sealing groove (515) at the top of the fixing ring (51), so that the connecting ring (62) is just clamped in the sealing groove (515) to form a sealing structure.

9. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The top cover (12) is provided with a hanging ring.

10. The sealing performance detection device of perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The detection container (4) comprises a container body (41), a liquid outlet pipe (42), a second electromagnetic valve (43), and a hydraulic pressure sensor (44); the bottom of the container body (41) is fixed on a connecting vibration plate (21), the side wall of the container body (41) is connected to the liquid outlet pipe (42), the liquid outlet pipe (42) is fixedly connected to the second electromagnetic valve (43), and the vibration plate (21) is fixedly connected to a plurality of hydraulic pressure sensors (44) whose positions match those of the container body (41).

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