Gas leakage detection device for gas chromatograph
Monitoring the gas leakage of the gas chromatograph through the thermal imager and sealing cover system, solving the problem of difficult to detect subtle air leakage in the prior art by manual observation, and achieving efficient and convenient air leakage detection.
Patent Information
- Application Number
- CN202420043083.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing gas chromatograph air leakage detection method relies on manual observation of whether the soap liquid is bubbled, making it difficult to detect fine air leakage, and the soap liquid needs to be cleaned after detection, which is time-consuming and labor-intensive.
Use a thermal imager to monitor the gas leakage of hot gases in the gas chromatograph, place the gas chromatograph in the sealed box through the sealed cover and the driving module, and use the thermal imager and control panel to observe the hot gas source in the box to judge the gas leakage. .
No need to apply soap liquid, which significantly improves the accuracy of detecting fine air leakage, saves time and labor, and makes the detection process more convenient.
Smart Images
Figure CN222144401U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of instrument detection, in particular to a gas leakage detection device for a gas chromatograph. Background Art
[0002] Gas chromatograph refers to a chromatographic analysis instrument that uses gas as the mobile phase. Gas chromatographs are widely used in existing experimental research. They are supplied with gas through a hydrogen generator. When detecting whether there is a leak in the gas chromatograph pipeline, soapy liquid is usually dipped in the hand and applied to the pipeline interface and the outer wall of the pipeline. Whether there is a leak at the detection point is determined by whether bubbles are emitted from the soapy liquid.
[0003] The existing patent number is: 202223028948.7, which discloses a gas chromatograph leakage detection device, including a detection device and an air outlet pipe, the detection device includes a fixed frame, one side of the fixed frame is fixedly connected to a support foot, one side of the fixed frame is fixedly connected to a support plate, one side of the support plate is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a first gear, and one side of the first gear is meshed with a second gear. Through the detection device, the gas chromatograph leakage detection function is realized, and through the cooperation between the servo motor, the first gear and the second gear, and the screw and the sliding seat, the back and forth movement function of the detection device is realized, and the staff does not need to apply soap solution to the air outlet pipe by hand back and forth. Through the clamping block, the clamping work of the air outlet pipe is realized, and the application work of the air outlet pipe is realized.
[0004] However, this patent still has the following problems in actual use: the staff determines whether the pipeline is leaking by observing whether the soap liquid bubbles. This method is not easy to observe, especially slight leaks, which are very easy to be missed by the inspectors, resulting in inconsistency between the test results and the actual results. At the same time, the soap liquid needs to be cleaned after the test, which is time-consuming and laborious. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a gas leakage detection device for a gas chromatograph to solve the problems existing in the above-mentioned background technology.
[0006] The utility model provides the following technical scheme: a gas leakage detection device for a gas chromatograph, comprising a frame, a plurality of supporting legs arranged at the bottom of the frame, and a gas chromatograph, wherein a supporting platform for carrying the gas chromatograph is detachably installed in the middle of the top surface of the frame, the gas chromatograph is placed on the top surface of the supporting platform, two sealing covers are relatively slidably installed on the top surface of the frame, a driving module is arranged at the top inner end of the frame, two free ends of the driving module are respectively connected to the bottoms of two sealing covers, and are used to control the two sealing covers to form a completely sealed box and to cover the gas chromatograph, a thermal imager is arranged on the inner wall of one of the sealing covers, and a control panel is arranged at the top of one side of the frame.
[0007] Furthermore, the number of the thermal imagers is at least five, which are respectively placed in the middle of the four sides of the box body and the top surface of the thermal imager.
[0008] Furthermore, two slide grooves A are provided at the front and rear ends of the top surface of the frame, and the two slide grooves A correspond to each other front and back. A slide groove B is provided in the middle of the top surface of the frame, and the two slide grooves A and one slide groove B are of equal length.
[0009] Furthermore, two sliding blocks are slidably connected inside the two slide grooves A, and the two sliding blocks are respectively connected to the bottom surfaces of the two sealing covers.
[0010] Furthermore, a groove is provided at the bottom of the opposite ends of the two sealing covers, and the two grooves are spliced to form a rectangle that is compatible with the support platform.
[0011] Furthermore, the drive module includes a servo motor, a bidirectional screw rod, and a slide. The servo motor is fixedly mounted on the top bottom surface of the frame. The bidirectional screw rod is connected to the free end of the servo motor, and the other end is installed on the top bottom surface of the frame through a bearing seat. The length of the bidirectional screw rod is equal to the length of the slide groove B. There are two slides, which are respectively threadedly connected to the two ends of the bidirectional screw rod, and the top of the slide is connected to the bottom of the sealing cover.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model utilizes a thermal imager to monitor a gas chromatograph into which hot gas is passed, and places the gas chromatograph in a sealed box environment, and determines whether a gas leakage occurs by observing the thermal image outside the gas chromatograph; the gas chromatograph to be detected is placed on a support table after hot gas is passed through it, and after being covered by a driving module and two sealing covers, the hot gas source of the box is monitored by a set thermal imager, so as to determine whether a gas pipe of the gas chromatograph has a gas leakage; the thermal imager and a control panel are used to observe the gas leakage, which not only does not require the application of soap solution, but also facilitates the monitoring and observation of slight gas leakages, thereby saving time and effort, and being practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 This is a schematic diagram of the drive module structure of the utility model.
[0016] Figure 3 This is a schematic diagram of the sealing cover structure of the utility model.
[0017] The accompanying drawings are marked as follows: 1. frame; 2. support leg; 3. support table; 4. gas chromatograph; 5. sealing cover; 6. thermal imager; 7. control panel; 8. slide A; 9. slide B; 10. slider; 11. servo motor; 12. bidirectional screw; 13. slide table; 14. groove. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0019] The utility model provides a gas leakage detection device for a gas chromatograph, such as Figure 1-3As shown, it includes a frame 1 and multiple supporting legs 2 arranged at the bottom of the frame 1 and a gas chromatograph 4. A supporting platform 3 for carrying the gas chromatograph 4 is detachably installed in the middle of the top surface of the frame 1, and the gas chromatograph 4 is placed on the top surface of the supporting platform 3. Two sealing covers 5 are relatively slidably installed on the top surface of the frame 1. A driving module is arranged at the top inner end of the frame 1. The two free ends of the driving module are respectively connected to the bottoms of the two sealing covers 5, which are used to control the two sealing covers 5 to form a completely sealed box and complete the masking of the gas chromatograph 4. A thermal imager 6 is arranged on the inner wall of one of the sealing covers 5. A control panel 7 is arranged on the top of one side of the frame 1. It can be explained here that the control panel 7 includes control keys and a display screen, and is connected to the thermal imager 6 for observing the picture monitored by the thermal imager 6 to determine whether the gas chromatograph 4 is leaking. At the same time, the control panel 7 is connected to the driving module to control the opening of the driving module to realize the driving movement of the two sealing covers 5.
[0020] The gas chromatograph 4 to be tested is placed on the support table 3 after hot gas is introduced, and is covered by the driving module and two sealing covers 5. The hot air source of the box is then monitored by the provided thermal imager 6 to determine whether there is any leakage in the air pipe of the gas chromatograph 4. The leakage is observed by using the thermal imager 6 and the control panel 7. This not only eliminates the need to apply soap solution, but also facilitates monitoring and observation of minor leaks, thus saving time and effort, and being practical and convenient.
[0021] Specifically, the number of thermal imagers 6 is at least five, which are respectively placed in the middle of the four sides of the box and the top surface of the thermal imager 6. The five thermal imagers 6 are respectively located around and on the top of the gas chromatograph 4 to achieve three-dimensional stereo monitoring and improve the accuracy of leakage position detection.
[0022] Specifically, two slide grooves A8 are provided at the front and rear ends of the top surface of the frame 1, and the two slide grooves A8 correspond to each other front and back. A slide groove B9 is provided in the middle of the top surface of the frame 1, and the two slide grooves A8 are of equal length to the one slide groove B9.
[0023] Specifically, two sliders 10 are slidably connected inside the two slide grooves A8, and the two sliders 10 are respectively connected to the bottom surfaces of the two sealing covers 5. It can be explained here that the sliders 10 are in an inverted "T" shape, which is used to cooperate with the driving module to make the sealing cover 5 move horizontally left and right.
[0024] Specifically, a groove 14 is provided at the bottom of the opposite end of the two sealing covers 5. The two grooves 14 are spliced to form a rectangle and are compatible with the support platform 3. When the two sealing covers 5 are spliced to form a complete box, the groove 14 is just snapped into place with the support platform 3, so that the two sealing covers 5 form a box with a sealed environment.
[0025] As one of the embodiments, Figure 2 As shown, the driving module includes a servo motor 11, a bidirectional screw rod 12, and a slide 13. The servo motor 11 is fixedly mounted on the top bottom surface of the frame 1. The bidirectional screw rod 12 is connected to the free end of the servo motor 11, and the other end is mounted on the top bottom surface of the frame 1 through a bearing seat. The length of the bidirectional screw rod 12 is equal to the length of the slide groove B9. There are two slides 13. The two slides 13 are respectively threadedly sleeved on the two ends of the bidirectional screw rod 12, and the top of the slide 13 slides inside the slide groove B9 and is connected to the bottom of the sealing cover 5. When the two sealing covers 5 are brought close to each other to form a complete box, the servo motor 11 is turned on first, and the servo motor 11 drives the bidirectional screw rod 12 to rotate. Since the slide 13 is threadedly sleeved with the bidirectional screw rod 12, and under the action of the connection limit of the sealing cover 5, the two slides 13 are brought close to each other, so that the two sealing covers 5 move close to each other on the top surface of the frame 1 until they fit together to form a box, and the servo motor 11 can be closed.
[0026] The working principle of the utility model is as follows: hot gas is introduced into the gas chromatograph 4 to be tested and placed on the support table 3, and then the servo motor 11 is turned on. The servo motor 11 drives the bidirectional screw rod 12 to rotate, so that the two slides 13 drive the sealing cover 5 to move closer on the top surface of the frame 1 until they fit together to form a box body, and then the servo motor 11 can be turned off, and then a plurality of thermal imagers 6 are used to monitor the surroundings and the top of the gas chromatograph 4. The staff can observe through the control panel 7, which not only does not need to apply soap solution, but also facilitates the monitoring and observation of slight air leaks, saving time and effort, and is practical and convenient.
[0027] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0028] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.
Claims
1. A gas chromatograph leakage detection device, comprising a frame (1), a plurality of supporting legs (2) arranged at the bottom of the frame (1), and a gas chromatograph (4), characterized in that: A support platform (3) for carrying the gas chromatograph (4) is detachably mounted in the middle of the top surface of the frame (1); the gas chromatograph (4) is placed on the top surface of the support platform (3); two sealing covers (5) are relatively slidably mounted on the top surface of the frame (1); a driving module is arranged at the top of the inner part of the frame (1); the two free ends of the driving module are respectively connected to the bottom of the two sealing covers (5) for controlling the two sealing covers (5) to form a completely sealed box and to cover the gas chromatograph (4); a thermal imager (6) is arranged on the inner wall of one of the sealing covers (5); and a control panel (7) is arranged at the top of one side of the frame (1).
2. A gas chromatograph leakage detection device according to claim 1, characterized in that: The number of the thermal imagers (6) is at least five, and they are respectively placed in the middle of the four sides of the box body and on the top surface of the thermal imagers (6).
3. A gas chromatograph leakage detection device according to claim 1, characterized in that: Two slide grooves A (8) are provided at the front and rear ends of the top surface of the frame (1), and the two slide grooves A (8) correspond to each other front to back. A slide groove B (9) is provided in the middle of the top surface of the frame (1), and the two slide grooves A (8) are of equal length to the one slide groove B (9).
4. A gas chromatograph leakage detection device according to claim 3, characterized in that: Two sliding blocks (10) are slidably connected inside the two sliding grooves A (8), and the two sliding blocks (10) are respectively connected to the bottom surfaces of the two sealing covers (5).
5. A gas chromatograph leakage detection device according to claim 4, characterized in that: A groove (14) is provided at the bottom of the opposite ends of the two sealing covers (5), and the two grooves (14) are spliced to form a rectangle that matches the support platform (3).
6. A gas chromatograph leakage detection device according to claim 1, characterized in that: The driving module comprises a servo motor (11), a bidirectional screw rod (12), and a slide (13). The servo motor (11) is fixedly mounted on the top bottom surface of the frame (1). The bidirectional screw rod (12) is connected to the free end of the servo motor (11), and the other end is mounted on the top bottom surface of the frame (1) through a bearing seat. The length of the bidirectional screw rod (12) is equal to the length of the slide groove B (9). There are two slides (13). The two slides (13) are respectively threadedly sleeved on the two ends of the bidirectional screw rod (12), and the top of the slide (13) is connected to the bottom of the sealing cover (5).