CN210606041U - Harmful gas leakage alarm - Google Patents
Harmful gas leakage alarm Download PDFInfo
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- CN210606041U CN210606041U CN201921772149.6U CN201921772149U CN210606041U CN 210606041 U CN210606041 U CN 210606041U CN 201921772149 U CN201921772149 U CN 201921772149U CN 210606041 U CN210606041 U CN 210606041U
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Abstract
The utility model discloses a harmful gas leakage alarm, which comprises a gas detector and a controller; the gas detector comprises a shell, and a passive detection port is arranged at the bottom of the shell; a first harmful gas detection module is arranged on the inner side of the passive detection port; first harmful gas detects module electricity and connects to controller, its characterized in that: the top of the shell is provided with a detection bin; a detection pipe is arranged on the inner side of the detection bin; one end of the detection tube is provided with an air inlet, and the other end of the detection tube is provided with an air outlet; the air inlet is connected with an air pump outlet through a pipeline; the inlet of the air pump is communicated with an air inlet pipe which is screwed on the shell in a sealing way; the utility model discloses a harmful gas leakage alarm can detect and the initiative detects through adopting the diffusion formula, and the alarm can carry out the spot check to improve and detect precision and detection efficiency, can carry out the self-checking to gas detector simultaneously.
Description
Technical Field
The utility model relates to a gas alarm, concretely relates to harmful gas leaks alarm belongs to gas alarm technical field.
Background
The harmful gas alarm is composed of a detector and an alarm control host, is widely applied to petrochemical industries with toxic gases in petroleum, gas, chemical industry, oil depots and the like, is used for detecting the leakage condition of dangerous places indoors and outdoors, and is an important instrument for ensuring production and personal safety. When harmful gas exists in the detected place, the detector converts the gas signal into a voltage signal or a current signal and transmits the voltage signal or the current signal to the alarm instrument, and the instrument displays the percentage concentration value of the lower explosion limit of the harmful gas. When the concentration of the harmful gas exceeds an alarm set value, audible and visual alarm signals prompt, and an operator on duty takes safety measures in time to avoid the occurrence of explosion accidents; the existing harmful gas detectors mainly adopt diffusion type detection, the detection efficiency is low, and when the sensors are damaged, the sensors cannot react quickly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a harmful gas leakage alarm adopts the diffusion formula to detect and initiatively detect, can high-efficiently detect harmful gas.
The utility model discloses a harmful gas leakage alarm, adopt diffusion formula and pump suction type to detect and combine, both set up separately the measuring channel, when selecting pump suction type (active) to detect, the air pump continues to pump the surrounding gas and detects in the measuring tube, when selecting diffusion to detect, diffusion formula sensor module continues to detect, pump suction type sensor module intermittent type work, interval cycle is awaken up promptly, can take out the inspection, thereby improve detection accuracy and detection efficiency, can carry out the self-checking to the gas detector simultaneously; accessing to a controller through at least one gas detector; the gas detector converts the gas concentration detected by the sensor into an electric signal, the electric signal is transmitted to the controller through a cable, the higher the gas concentration is, the stronger the electric signal is, when the gas concentration reaches or exceeds an alarm point set by the controller, the controller sends out an alarm signal, and external equipment such as an electromagnetic valve, an exhaust fan and the like can be started, so that hidden dangers are automatically eliminated; the alarm controller completes detection of the two paths of harmful gas detection modules, and when diffusion detection is carried out and a timing time period is reached, the alarm controller alternately detects the two paths of harmful gas detection modules; the two paths of harmful gas detection modules adopt the existing harmful gas detection sensor module; the concrete structure is as follows: the device comprises a gas detector arranged at each monitoring point; the controller is arranged in the duty room and is in communication connection with the gas detector; the gas detector comprises a shell, and a passive detection port is arranged at the bottom of the shell; a first harmful gas detection module is arranged on the inner side of the passive detection port; first harmful gas detects module electricity and connects to controller, its characterized in that: the top of the shell is provided with a detection bin; a detection pipe is arranged on the inner side of the detection bin; one end of the detection tube is provided with an air inlet, and the other end of the detection tube is provided with an air outlet; the air inlet is connected with an air pump outlet through a pipeline; the inlet of the air pump is communicated with an air inlet pipe which is screwed on the shell in a sealing way; a second harmful gas detection module electrically connected with the controller is arranged on the inner side of the detection pipe; an alarm column is arranged at one end of the detection bin, which is far away from the detection tube; an audible and visual alarm is arranged on the inner side of the alarm column; the audible and visual alarm is electrically connected to the controller; a transparent sealing cover is arranged at the top of the alarm column; the audible and visual alarm is characterized in that an LED drive circuit drives an LED to perform optical alarm, a buzzer drive circuit drives a buzzer to perform audible alarm, and a controller directly controls a low-level end signal of the audible and visual alarm or controls the audible and visual alarm through a relay so as to complete alarm operation; the lower part of the alarm column is provided with a power line and a signal line which are electrically connected with the controller; the controller is also electrically connected with a diffusion type/active type key, and diffusion type and pump type modes are selected through the diffusion type/active type key.
Further, a silencer and a filter are respectively arranged at the air inlet end of the air inlet pipe.
Furthermore, a visual window is arranged on the front face of the shell; and a power indicator light, an alarm indicator light and a fault indicator light which are electrically connected with the controller are arranged on the inner side of the visual window.
Compared with the prior art, the utility model discloses a harmful gas leaks alarm can detect and the initiative detects through adopting the diffusion formula, and the alarm can carry out the selective examination to improve and detect precision and detection efficiency, can carry out the self-checking to gas detector simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
Example 1:
as shown in fig. 1, the harmful gas leakage alarm combines diffusion type detection and pump suction type detection, and the diffusion type detection and the pump suction type detection are respectively provided with a detection channel, when the pump suction type (active type) detection is selected, the air pump continuously pumps ambient gas into the detection pipe for detection, when the diffusion detection is selected, the diffusion type sensor module continuously detects, and the pump suction type sensor module intermittently works, namely is awakened at intervals in a cycle, so that the pump detection can be performed, the detection precision and the detection efficiency are improved, and meanwhile, the gas detector can be subjected to self-detection; accessing to a controller through at least one gas detector; the gas detector converts the gas concentration detected by the sensor into an electric signal, the electric signal is transmitted to the controller through a cable, the higher the gas concentration is, the stronger the electric signal is, when the gas concentration reaches or exceeds an alarm point set by the controller, the controller sends out an alarm signal, and external equipment such as an electromagnetic valve, an exhaust fan and the like can be started, so that hidden dangers are automatically eliminated; the alarm controller completes detection of the two paths of harmful gas detection modules, and when diffusion detection is carried out and a timing time period is reached, the alarm controller alternately detects the two paths of harmful gas detection modules; the two paths of harmful gas detection modules adopt the existing harmful gas detection sensor module; the concrete structure is as follows: the device comprises a gas detector arranged at each monitoring point; the controller is arranged in the duty room and is in communication connection with the gas detector; the gas detector comprises a shell 1, and a passive detection port 2 is arranged at the bottom of the shell; a first harmful gas detection module 3 is arranged on the inner side of the passive detection port 2; the first harmful gas detection module 3 is electrically connected to the controller 4, and the top of the shell 1 is provided with a detection bin 5; a detection pipe 6 is arranged on the inner side of the detection bin 5; one end of the detection tube 6 is provided with an air inlet 7, and the other end of the detection tube 6 is provided with an air outlet 8; the air inlet is connected with an outlet of an air pump 9 through a pipeline; the inlet of the air pump 9 is hermetically communicated with an air inlet pipe 10 screwed on the shell; a second harmful gas detection module 11 electrically connected with the controller is arranged on the inner side of the detection pipe 6; an alarm column 12 is arranged at one end of the detection bin 5, which is far away from the detection tube; an audible and visual alarm is arranged on the inner side of the alarm column 12; the audible and visual alarm is electrically connected to the controller 4; a transparent sealing cover 13 is arranged at the top of the alarm column 12; the audible and visual alarm is characterized in that an LED drive circuit drives an LED to perform optical alarm, a buzzer drive circuit drives a buzzer to perform audible alarm, and a controller directly controls a low-level end signal of the audible and visual alarm or controls the audible and visual alarm through a relay so as to complete alarm operation; the lower part of the alarm column 12 is provided with a power line and a signal line which are electrically connected with the controller; the controller 4 is also electrically connected to a diffusion/active key 16 by which diffusion and pumping mode selection is made.
In still another embodiment, the intake pipe 10 is provided at its intake end with a muffler 14 and a filter 15, respectively.
In another embodiment, a visible window is arranged on the front surface of the shell 1; and a power indicator light, an alarm indicator light and a fault indicator light which are electrically connected with the controller are arranged on the inner side of the visual window.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (3)
1. A harmful gas leakage alarm comprises gas detectors arranged at monitoring points; the controller is arranged in the duty room and is in communication connection with the gas detector; the gas detector comprises a shell, and a passive detection port is arranged at the bottom of the shell; a first harmful gas detection module is arranged on the inner side of the passive detection port; first harmful gas detects module electricity and connects to controller, its characterized in that: the top of the shell is provided with a detection bin; a detection pipe is arranged on the inner side of the detection bin; one end of the detection tube is provided with an air inlet, and the other end of the detection tube is provided with an air outlet; the air inlet is connected with an air pump outlet through a pipeline; the inlet of the air pump is communicated with an air inlet pipe which is screwed on the shell in a sealing way; a second harmful gas detection module electrically connected with the controller is arranged on the inner side of the detection pipe; an alarm column is arranged at one end of the detection bin, which is far away from the detection tube; an audible and visual alarm is arranged on the inner side of the alarm column; the audible and visual alarm is electrically connected to the controller; a transparent sealing cover is arranged at the top of the alarm column; the lower part of the alarm column is provided with a power line and a signal line which are electrically connected with the controller; the controller is also electrically connected with a diffusion/active key.
2. The harmful gas leak alarm according to claim 1, wherein: and the air inlet end of the air inlet pipe is respectively provided with a silencer and a filter.
3. The harmful gas leak alarm according to claim 1, wherein: the front surface of the shell is provided with a visual window; and a power indicator light, an alarm indicator light and a fault indicator light which are electrically connected with the controller are arranged on the inner side of the visual window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772149.6U CN210606041U (en) | 2019-10-22 | 2019-10-22 | Harmful gas leakage alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772149.6U CN210606041U (en) | 2019-10-22 | 2019-10-22 | Harmful gas leakage alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210606041U true CN210606041U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921772149.6U Active CN210606041U (en) | 2019-10-22 | 2019-10-22 | Harmful gas leakage alarm |
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| Country | Link |
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| CN (1) | CN210606041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701523A (en) * | 2020-06-28 | 2020-09-25 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN112684115A (en) * | 2020-12-23 | 2021-04-20 | 苏州工业园区泰智测控技术有限公司 | Fixed toxic gas detector |
-
2019
- 2019-10-22 CN CN201921772149.6U patent/CN210606041U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701523A (en) * | 2020-06-28 | 2020-09-25 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN111701523B (en) * | 2020-06-28 | 2022-06-14 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
| CN112684115A (en) * | 2020-12-23 | 2021-04-20 | 苏州工业园区泰智测控技术有限公司 | Fixed toxic gas detector |
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