Gas safety detection equipment

Abstract

The utility model discloses fuel gas safety detection equipment, and the equipment comprises a gas collection hood which is used for the plugging cooperation with a to-be-calibrated monitoring terminal; one end of the detection rod is connected with the gas collecting hood; the sample gas supply mechanism is arranged at one end, far away from the gas collecting hood, of the detection rod and is communicated with the gas collecting hood through the detection rod; the first fuel gas concentration detection mechanism is arranged in the gas collecting hood and is used for monitoring the sample gas supplied by the sample gas supply mechanism; the display mechanism is arranged on the detection rod and connected with the first gas concentration detection mechanism so as to display the detection result of the first gas concentration detection mechanism. The detection rod is mounted on the gas collection hood, so that a worker can conveniently convey the gas collection hood to the to-be-calibrated monitoring terminal, the gas collection hood and the to-be-calibrated monitoring terminal are in plug-in fit, sample gas is detected synchronously through the first gas concentration detection mechanism and the to-be-calibrated monitoring terminal, and the detection accuracy is improved by comparing the detection results of the first gas concentration detection mechanism and the to-be-calibrated monitoring terminal. Therefore, whether the monitoring of the to-be-calibrated monitoring terminal is accurate can be verified.

Description

Technical Field

[0001] The present application relates to the field of gas safety technology, and in particular to a gas safety detection device. Background Art

[0002] As a key infrastructure supporting the normal operation of the city, the safety and stability of the urban gas pipeline network cannot be ignored. However, since most of the pipelines are buried underground and the environment is complex, once a gas leakage accident occurs, the consequences are extremely serious. Especially in the confined spaces adjacent to valve wells and pipelines, gas accumulation can easily cause explosions, posing a great threat to public safety. In order to improve the prevention and response capabilities of gas leakage accidents, we have deployed confined space monitoring terminals at key risk points. These terminals can monitor the concentration of combustible gases in real time and quickly alarm when abnormalities are found for timely disposal.

[0003] After long-term use, confined space monitoring terminals may become insensitive or have inaccurate monitoring results. However, since confined space monitoring terminals are mostly installed in locations that are difficult for workers to reach, such as valve wells, the monitoring accuracy of confined space monitoring terminals is difficult to verify.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a gas safety detection device to verify the monitoring accuracy of a confined space monitoring terminal in view of the above-mentioned defects of the prior art.

[0006] The technical solutions adopted by this application to solve the technical problems are as follows:

[0007] A gas safety detection device, comprising:

[0008] A gas collecting hood, used for plugging and matching with the monitoring terminal to be calibrated;

[0009] A detection rod, one end of which is connected to the gas collecting hood;

[0010] A sample gas supply mechanism is arranged at one end of the detection rod away from the gas collecting hood and is connected with the gas collecting hood through the detection rod;

[0011] A first gas concentration detection mechanism is disposed in the gas collecting hood to monitor the sample gas supplied by the sample gas supply mechanism;

[0012] The display mechanism is arranged on the detection rod and connected to the first gas concentration detection mechanism to display the detection result of the first gas concentration detection mechanism.

[0013] The gas safety detection device further comprises:

[0014] The second gas concentration detection mechanism is arranged outside the gas collecting hood and connected to the display mechanism so as to display the detection result of the second gas concentration detection mechanism through the display mechanism.

[0015] The gas safety detection device, wherein the display mechanism comprises:

[0016] A wireless signal transmission unit, used for performing wireless signal transmission with the monitoring terminal to be calibrated;

[0017] The controller is electrically connected to the wireless signal transmission unit, the first gas concentration detection mechanism and the second gas concentration detection mechanism respectively; the controller is used to receive the monitoring results of the monitoring terminal to be calibrated through the wireless signal transmission unit, and display the monitoring results through the display mechanism.

[0018] The gas safety detection device, wherein the display mechanism further comprises:

[0019] The indicator light unit is electrically connected to the controller to receive a switch signal sent by the controller.

[0020] The gas safety detection device, wherein the indicator light unit comprises:

[0021] The first indicator light; the controller is also used to send an on signal to the first indicator light when the monitoring result is equal to the detection result of the first gas concentration detection mechanism;

[0022] The second indicator light; the controller is also used to send an on signal to the second indicator light when the monitoring result is not equal to the detection result of the first gas concentration detection mechanism.

[0023] The gas safety detection device, wherein the indicator light unit further comprises:

[0024] Alarm light; the controller is also used to send an open signal to the alarm light when receiving the detection result of the second gas concentration detection mechanism.

[0025] The gas safety detection device further comprises:

[0026] The universal head is arranged between the detection rod and the gas collecting cover.

[0027] The gas safety detection device further comprises:

[0028] The sealing plug is arranged at one end of the gas collecting hood away from the detection rod and is used for detachable plug-in cooperation with the monitoring terminal to be calibrated.

[0029] Beneficial effect: In the present application, the detection rod is installed on the gas collecting hood, which is convenient for the staff to send the gas collecting hood to the monitoring terminal to be calibrated and plug it into the monitoring terminal to be calibrated, so that the sample gas is synchronously detected by the first gas concentration detection mechanism and the monitoring terminal to be calibrated, and the monitoring result is compared with the detection result of the first gas concentration detection mechanism to verify whether the monitoring of the monitoring terminal to be calibrated is accurate, thereby solving the problem in the prior art that it is inconvenient to calibrate the monitoring terminal to be calibrated due to the limited installation space of the monitoring terminal to be calibrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a reference diagram of the use state of the gas safety detection device described in this application when it is plugged in and matched with the monitoring terminal to be calibrated;

[0031] Figure 2 It is a reference diagram of the use state of the gas safety detection device described in this application when it is separated from the monitoring terminal to be calibrated;

[0032] Figure 3 is a schematic diagram of the structure of the sealing plug described in this application;

[0033] Figure 4 It is a functional principle block diagram of the gas safety detection device described in this application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0035] The present application provides a gas safety detection device, such as Figure 1 , Figure 2 and Figure 4 As shown, the gas safety detection equipment includes a gas collecting hood 1, a detection rod 2, a sample gas supply mechanism 3, a first gas concentration detection mechanism 4 and a display mechanism 5; the gas collecting hood 1 is used for plugging and matching with the monitoring terminal 100 to be calibrated; one end of the detection rod 2 is connected to the gas collecting hood 1; the sample gas supply mechanism 3 is arranged at the end of the detection rod 2 away from the gas collecting hood 1, and is connected to the gas collecting hood 1 through the detection rod 2; the first gas concentration detection mechanism 4 is arranged in the gas collecting hood 1 to monitor the sample gas supplied by the sample gas supply mechanism 3; the display mechanism 5 is arranged on the detection rod 2, and is connected to the first gas concentration detection mechanism 4 to display the detection result of the first gas concentration detection mechanism 4.

[0036] Specifically, the two ends of the detection rod 2 are connected to the gas hood 1 and the sample gas supply mechanism 3 respectively; the sample gas supply mechanism 3 supplies sample gas to the gas hood 1 through the detection rod 2, and the first gas concentration detection mechanism 4 in the gas hood 1 can detect the sample gas, and the detection result of the first gas concentration detection mechanism 4 is displayed through the display mechanism 5. The monitoring terminal 100 to be calibrated is connected to the external host, and the monitoring result of the gas concentration by the monitoring terminal 100 to be calibrated can be displayed through the external host; then, after the detection rod 2 is extended into the installation space of the monitoring terminal 100 to be calibrated, the monitoring terminal 100 to be calibrated is plugged and matched with the monitoring terminal 100 to be calibrated through the gas hood 1, and the sample gas supplied by the sample gas supply mechanism 3 can be monitored by the monitoring terminal 100 to be calibrated through the gas hood 1, so as to obtain the monitoring result of the sample gas by the monitoring terminal 100 to be calibrated. By comparing the detection result of the first gas concentration detection mechanism 4 with the monitoring result, the staff can verify whether the monitoring of the monitoring terminal 100 to be calibrated is accurate.

[0037] It can be seen that in the present application, the detection rod 2 is installed on the gas collecting hood 1, which is convenient for the staff to send the gas collecting hood 1 to the monitoring terminal 100 to be calibrated and plug it into the monitoring terminal 100 to be calibrated, so that the sample gas is synchronously detected by the first gas concentration detection mechanism 4 and the monitoring terminal 100 to be calibrated, and the monitoring result is compared with the detection result of the first gas concentration detection mechanism 4, so as to verify whether the monitoring of the monitoring terminal 100 to be calibrated is accurate, thereby solving the problem in the prior art that it is inconvenient to calibrate the monitoring terminal 100 to be calibrated due to the limited installation space of the monitoring terminal 100 to be calibrated.

[0038] It should be noted that the detection accuracy of the first gas concentration detection mechanism 4 is higher than the monitoring accuracy of the monitoring terminal 100 to be calibrated, thereby achieving the purpose of verifying the monitoring accuracy of the monitoring terminal 100 to be calibrated through the first gas concentration detection mechanism 4.

[0039] The monitoring terminal 100 to be calibrated has a sensor, and the first gas concentration detection mechanism 4 has a first sensor, the detection sensitivity and detection accuracy of the first sensor are higher than those of the sensor. The sensor is placed outside and is used for plugging and matching with the gas collecting hood 1.

[0040] In one embodiment of the present application, the gas safety detection device also includes a second gas concentration detection mechanism 6, which is arranged outside the gas collecting hood 1 and connected to the display mechanism 5 to display the detection result of the second gas concentration detection mechanism 6 through the display mechanism 5.

[0041] Specifically, since the gas hood 1 and the monitoring terminal 100 to be calibrated are matched in a detachable plug-in manner, that is, after the gas hood 1 and the monitoring terminal 100 to be calibrated are plugged in and verified, the gas hood 1 needs to be removed from the monitoring terminal 100 to be calibrated; at the same time, since the staff is far away from the monitoring terminal 100 to be calibrated and can only operate through the detection rod 2, such a long-distance, detachable plug-in manner may cause the plug-in to be inadequate, resulting in the problem of sample gas leakage between the gas hood 1 and the monitoring terminal 100 to be calibrated. Since the space where the monitoring terminal 100 to be calibrated is located is relatively closed, once the sample gas leaks, it is very easy to cause danger. Therefore, in this embodiment, the second gas concentration detection mechanism 6 is also set outside the gas hood 1, and the gas concentration in the environment where the monitoring terminal 100 to be calibrated is located is detected by the second gas concentration detection mechanism 6, and the detection result is displayed by the display mechanism 5, so that the staff can know in real time whether there is a sample gas leakage in the space where the monitoring terminal 100 to be calibrated is located.

[0042] The second gas concentration detection mechanism 6 has a second sensor, and the detection accuracy of the second sensor is greater than the detection accuracy of the first sensor. In one embodiment of the present application, the first sensor is a LEL sensor, and the second sensor is a ppm sensor.

[0043] The display mechanism 5 includes a wireless signal transmission unit 51 and a controller 52. The wireless signal transmission unit 51 is electrically connected to the controller 52 and is used to perform wireless signal transmission with the monitoring terminal 100 to be calibrated; the controller 52 is electrically connected to the wireless signal transmission unit 51, the first gas concentration detection structure and the second gas concentration detection mechanism 6 respectively.

[0044] Specifically, the monitoring terminal 100 to be calibrated also has a wireless signal transmission device. When the gas collecting hood 1 is plugged into the monitoring terminal 100 to be calibrated, the wireless signal transmission unit 51 can be wirelessly connected to the monitoring terminal 100 to be calibrated, and obtain the monitoring results of the monitoring terminal 100 to be calibrated through the controller 52, so as to display the monitoring results on the display mechanism 5.

[0045] That is, the display mechanism 5 described in the present application can simultaneously display the detection results of the first gas concentration detection mechanism 4 and the monitoring results of the monitoring terminal 100 to be calibrated. The staff can know whether the monitoring of the monitoring terminal 100 to be calibrated is accurate only by watching the display mechanism 5, without having to check the host to which the monitoring terminal 100 to be calibrated is connected, which saves time and effort.

[0046] The display mechanism 5 further includes a display screen and an indicator light unit 53; the display screen and the indicator light unit 53 are both electrically connected to the controller 52; the indicator light unit 53 is used to receive a switch signal sent by the controller 52, and to turn on and off according to the switch signal.

[0047] Specifically, the indicator light unit 53 includes a first indicator light and a second indicator light; the controller 52 is also used to send an on signal to the first indicator light when the monitoring result is equal to the detection result of the first gas concentration detection mechanism 4; the controller 52 is also used to send an on signal to the second indicator light when the monitoring result is not equal to the detection result of the first gas concentration detection mechanism 4.

[0048] When the monitoring result is equal to the detection result of the first gas concentration detection mechanism 4, the monitoring of the monitoring terminal 100 to be calibrated is accurate and no calibration is required, the monitoring terminal 100 to be calibrated is verified to be qualified, the controller 52 sends a start signal to the first indicator light, and the first indicator light is lit. When the monitoring result is not equal to the detection result of the first gas concentration detection mechanism 4, the monitoring of the monitoring terminal 100 to be calibrated is inaccurate and calibration is required, the monitoring terminal 100 to be calibrated is verified to be unqualified, the controller 52 sends a start signal to the second indicator light, and the second indicator light is lit.

[0049] The first indicator light and the second indicator light are used to directly prompt the verification result. The staff can know the verification result of the monitoring terminal 100 to be calibrated by observing the switch of the first indicator light and the second indicator light, which is quick and convenient.

[0050] It can be understood that since the detection accuracy of the first gas concentration detection mechanism 4 is higher than that of the monitoring terminal 100 to be calibrated, when the monitoring result is not equal to the detection result of the first gas concentration detection mechanism 4, it means that the monitoring of the monitoring terminal 100 to be calibrated is inaccurate and needs to be calibrated, then the verification of the monitoring terminal 100 to be calibrated fails.

[0051] The indicator light unit 53 also includes an alarm light; the controller 52 is also used to send an on signal to the alarm light when receiving the detection result of the second gas concentration detection mechanism 6.

[0052] Specifically, the controller 52 is electrically connected to the second gas concentration detection mechanism 6, and can obtain the detection result of the second gas concentration detection mechanism 6; when the controller 52 receives the detection result of the second gas concentration detection mechanism 6, the controller 52 sends an on signal to the alarm light, and the alarm light lights up, thereby reminding the staff that a sample gas leak has occurred and needs to be dealt with in time, thereby avoiding safety risks.

[0053] The gas safety detection device further includes a universal head 7, which is disposed between the detection rod 2 and the gas collecting hood 1. The universal head 7 can be bent and adjusted at any angle, so by adding the universal head 7 between the detection rod 2 and the gas collecting hood 1, it is convenient to adjust the angle of the gas collecting hood 1 relative to the detection rod 2, so that the gas collecting hood 1 can be plugged and matched with the monitoring terminal 100 to be calibrated in the hidden space, thereby improving the adaptability of the gas safety detection device to the space environment.

[0054] The gas safety detection device further includes a sealing plug 8, which is disposed at one end of the gas collecting hood 1 away from the detection rod 2 and is used for detachably plugging with the monitoring terminal 100 to be calibrated. The sealing plug 8 is elastic, so as to improve the sealing performance when plugging with the monitoring terminal 100 to be calibrated, and reduce or even avoid leakage of sample gas from the joint between the gas collecting hood 1 and the monitoring terminal 100 to be calibrated.

[0055] like Figure 3 As shown, the sealing plug 8 includes an outer ring 81, an inner ring 82 and a retaining ring 83; the inner ring 82 is located inside the outer ring 81 and is coaxially arranged with the outer ring 81; the retaining ring 83 is located between the inner ring 82 and the outer ring 81. The axial height of the inner ring 82 is less than the axial height of the outer ring 81; one axial end of the outer ring 81 is flush with one axial end of the inner ring 82 and is connected through the retaining ring 83, so that an accommodating cavity 80 is formed between the retaining ring 83, the inner ring 82 and the outer ring 81; the end of the gas collecting cover 1 away from the detection rod 2 is located in the accommodating cavity 80. The inner ring 82 is inserted into the gas collecting cover 1, and the inner ring 82 cooperates with the monitoring terminal 100 to be calibrated. When the sealing plug 8 cooperates with the monitoring terminal 100 to be calibrated, a part of the monitoring terminal 100 to be calibrated is inserted into the inner ring 82.

[0056] In summary, the present application provides a gas safety detection device, which includes: a gas collecting hood, which is used to plug and match with the monitoring terminal to be calibrated; a detection rod, one end of which is connected to the gas collecting hood; a sample gas supply mechanism, which is arranged at one end of the detection rod away from the gas collecting hood and is connected to the gas collecting hood through the detection rod; a first gas concentration detection mechanism, which is arranged in the gas collecting hood to monitor the sample gas supplied by the sample gas supply mechanism; a display mechanism, which is arranged on the detection rod and is connected to the first gas concentration detection mechanism to display the detection result of the first gas concentration detection mechanism. In the present application, the detection rod is installed on the gas collecting hood, which is convenient for the staff to send the gas collecting hood to the monitoring terminal to be calibrated and plug and match with the monitoring terminal to be calibrated, so that the sample gas can be detected synchronously by the first gas concentration detection mechanism and the monitoring terminal to be calibrated, and the monitoring result can be compared with the detection result of the first gas concentration detection mechanism, so as to verify whether the monitoring of the monitoring terminal to be calibrated is accurate, thereby solving the problem in the prior art that it is inconvenient to calibrate the monitoring terminal to be calibrated due to the limited installation space of the monitoring terminal to be calibrated.

[0057] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A gas safety detection device, characterized in that: It includes: A gas collecting hood, used for plugging and matching with the monitoring terminal to be calibrated; A detection rod, one end of which is connected to the gas collecting hood; A sample gas supply mechanism is arranged at one end of the detection rod away from the gas collecting hood and is connected with the gas collecting hood through the detection rod; A first gas concentration detection mechanism is disposed in the gas collecting hood to monitor the sample gas supplied by the sample gas supply mechanism; The display mechanism is arranged on the detection rod and connected to the first gas concentration detection mechanism to display the detection result of the first gas concentration detection mechanism.

2. The gas safety detection device according to claim 1, characterized in that: It also includes: The second gas concentration detection mechanism is arranged outside the gas collecting hood and connected to the display mechanism so as to display the detection result of the second gas concentration detection mechanism through the display mechanism.

3. The gas safety detection device according to claim 2, characterized in that: The display mechanism comprises: A wireless signal transmission unit, used for performing wireless signal transmission with the monitoring terminal to be calibrated; The controller is electrically connected to the wireless signal transmission unit, the first gas concentration detection mechanism and the second gas concentration detection mechanism respectively; the controller is used to receive the monitoring results of the monitoring terminal to be calibrated through the wireless signal transmission unit, and display the monitoring results through the display mechanism.

4. The gas safety detection device according to claim 3, characterized in that: The display mechanism also includes: The indicator light unit is electrically connected to the controller to receive a switch signal sent by the controller.

5. The gas safety detection device according to claim 4, characterized in that: The indicator light unit comprises: The first indicator light; the controller is also used to send an on signal to the first indicator light when the monitoring result is equal to the detection result of the first gas concentration detection mechanism; The second indicator light; the controller is also used to send an on signal to the second indicator light when the monitoring result is not equal to the detection result of the first gas concentration detection mechanism.

6. The gas safety detection device according to claim 5, characterized in that: The indicator light unit also includes: Alarm light; the controller is also used to send an open signal to the alarm light when receiving the detection result of the second gas concentration detection mechanism.

7. The gas safety detection device according to claim 1, characterized in that: It also includes: The universal head is arranged between the detection rod and the gas collecting cover.

8. The gas safety detection device according to claim 1, characterized in that: It also includes: The sealing plug is arranged at one end of the gas collecting hood away from the detection rod and is used for detachable plug-in cooperation with the monitoring terminal to be calibrated.

Images