Gas concentration detector

Abstract

The utility model discloses a gas concentration detector which comprises a detection cavity, a sensor and an electromagnetic valve, the electromagnetic valve is more than three unit electromagnetic valves or an electromagnetic valve with more than three positions, one inlet of the electromagnetic valve is connected with cleaning gas through a cleaning pipe, and inlets of the other electromagnetic valves are connected to detection point positions through detection branch pipes. Solenoid valve outlets are connected to a detection cavity through a detection header pipe, the detection cavity is correspondingly provided with a sensor, the detection cavity is provided with an exhaust port, a plurality of solenoid valves or multi-position solenoid valves are adopted, gas of a plurality of point positions to be detected is communicated through a pipeline, and targeted detection of the point positions is achieved through the solenoid valves of the corresponding point positions of the open pipe. Therefore, only one set of detection equipment is needed to realize multi-point gas detection, especially for gas with expensive sensors, the equipment cost can be greatly saved, and the effect that one set of detection equipment is shared by multiple points is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air detection technical field, concretely relates to a gas concentration detector. BACKGROUND

[0002] Detecting gas components in different environments can achieve targeted regulatory requirements or early warning requirements, including direct gas detection, such as coal mine gas concentration, or detection of gas products, such as beer fermentation, grain mildew and corruption, etc., which will be reflected in the gas products. In order to achieve more accurate detection, multiple detection points need to be set in the environment for monitoring gas parameters in different locations or different sealed spaces. Generally, a single detection device is required for each point, and the parameters of each location need to be analyzed and compared horizontally and vertically to achieve more accurate result feedback. However, this layout method results in a large number of equipment requirements. Generally, the supporting sensors in the equipment, especially the high-precision sensors, are expensive. The cost of individually setting up equipment for multiple detection points will increase dramatically, which is difficult for general enterprises to bear. Therefore, the detection equipment needs to be optimized to reduce the cost of equipment and the difficulty of data aggregation. SUMMARY

[0003] To overcome the above-mentioned deficiencies, the inventors of the present utility model have made long-term exploration and attempts, and have made repeated experiments and efforts, and have continuously reformed and innovated, and have proposed a gas concentration detector. The gas concentration detector uses multiple electromagnetic valves or multi-position electromagnetic valves to connect the gases of multiple detection points through pipelines, and realizes targeted detection of the points by opening the electromagnetic valves corresponding to the points. Thus, only one set of detection equipment can realize gas detection of multiple points. Especially for expensive gases, the equipment cost can be greatly saved, and the effect of sharing one set of detection equipment for multiple points can be achieved.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present utility model is to provide a gas concentration detector. It comprises a detection chamber, a sensor, and an electromagnetic valve. The electromagnetic valve is three or more unit electromagnetic valves or one three-position or more electromagnetic valve. One inlet of the electromagnetic valve is connected to a cleaning gas through a cleaning pipe, and the remaining electromagnetic valve inlets are connected to each detection point through detection sub-pipes. The electromagnetic valve outlets are connected to the detection chamber through one detection main pipe. The detection chamber is provided with a sensor. The detection chamber is provided with an exhaust port.

[0005] According to the further preferred technical scheme of the gas concentration detector, a gas pump is further provided on the detection main pipe to extract the gases of each detection point or the cleaning gas.

[0006] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: still be provided with box, detection cavity, sensor, electromagnetic valve are installed inside the box, the gas inlet interface of electromagnetic valve and the exhaust outlet of detection cavity are provided on the box, gas inlet branch pipe is connected to the outside of the gas inlet interface, the other end is connected with the inlet of electromagnetic valve by gas inlet connecting pipe, the exhaust outlet is connected with the exhaust port of detection cavity by exhaust pipe.

[0007] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: still be provided with wireless signal transmission device, corresponding antenna is set in the outside of box, and wireless signal transmission device is electrically connected with sensor.

[0008] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: the box includes bottom shell and cover plate, and cover plate is bolted between bottom shell.

[0009] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: the electromagnetic valve is six electromagnetic valves.

[0010] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: sampling gas inlet interface is arranged in parallel on the side of box.

[0011] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: gas inlet is provided on the box and is communicated with external air, and the cleaning pipe is communicated with the inside of box.

[0012] The utility model discloses a kind of gas concentration detectors, and its further preferred technical solution is: the sensor includes nitrogen sensor and phosphine sensor.

[0013] Compared with prior art, the technical scheme of the utility model has the following advantages / benefits:

[0014] 1, adopt multiple electromagnetic valves or multiple electromagnetic valves, and the gas of multiple detection points is communicated by pipeline, and the electromagnetic valve of corresponding point is realized by switch The targeted detection of the point, so that only one set of detection equipment can realize the gas detection of multiple points, especially for the gas that sensor is more expensive, can greatly save equipment cost, realize the effect that one set of detection equipment is shared by multiple points.

[0015] 2, put detection into the same set of detection equipment, can directly compare data in microprocessor in equipment, or data can be summarized to host computer by a signal transmission device, data processing can be more free, data summary difficulty reduces, without again large-scale network coverage or layout.

[0016] 3. The air (or gas) environment of the point to be detected is connected by pipeline, without the need to separately arrange detection equipment, the difficulty of network arrangement and power supply arrangement is reduced, only the network and power supply of a set of equipment need to be arranged, installation is more material-saving, and installation difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a top view of a gas concentration detector of the present application.

[0019] Figure 2 is a front view of a gas concentration detector of the present application.

[0020] Figure 3 is a right view of a gas concentration detector of the present application.

[0021] The marks in the figure are as follows: 1. detection cavity 101. exhaust port 2. sensor 3. electromagnetic valve 301. detection sub-pipe 302. detection main pipe 303. cleaning pipe 4. box 401. air inlet 402. exhaust outlet 403. air inlet 404. exhaust pipe 405. air inlet connecting pipe 5. wireless signal transmission device 501. antenna 6. nitrogen sensor 7. phosphine sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described as follows. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the detailed description of the embodiments of the present application provided below is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application.

[0023] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it can not be further defined and explained in subsequent drawings.

[0024] Example 1:

[0025] As Figure 1 shown, a gas concentration detector. It includes a detection chamber 1, a sensor 2, a solenoid valve 3, one inlet of the solenoid valve 3 is connected to the cleaning gas through the cleaning pipe 303, the remaining solenoid valve inlets are connected to each detection point through the detection sub-pipe 301, and the solenoid valve outlets are connected to the detection chamber 1 through a detection main pipe 302. The detection chamber 1 is correspondingly provided with the sensor 2, the detection chamber 1 is provided with an exhaust port 101, the solenoid valve is more than three unit solenoid valves or one more than three solenoid valves, a plurality of solenoid valves or a plurality of solenoid valves are used to connect the gas of a plurality of detection points through the pipeline, and the corresponding point of the solenoid valve is opened to realize the targeted detection of the point. Thus, only one set of detection equipment can realize multi-point gas detection, especially for expensive gas sensors 2, which can greatly save equipment costs and achieve the effect of sharing one set of detection equipment for multiple points. Among them, the sensor 2 can use the corresponding sensor 2 according to the detection requirements, and the number can be adjusted according to the requirements. It should be noted that the sensor 2 is only a general description, which actually refers to a complete analysis device that can analyze certain components in the gas. In the detection chamber 1, only the probe is provided, and other auxiliary electronic devices are electrically connected with the communication device to transmit the analysis data. The solenoid valve refers to at least three solenoid valves that can be individually controlled, that is, similar valves can be used, such as more than three unit solenoid valves or one more than three solenoid valves. The outlets of all solenoid valves are finally collected into the detection main pipe 302, so that the gases of different points are separately introduced into the detection chamber 1.

[0026] A gas pump is further provided on the detection main pipe 302 for extracting the gas of each detection point or the cleaning gas. The gas pump is mainly used for extraction, so its number and position can be adjusted according to actual needs.

[0027] A box body 4 is further provided, the detection chamber 1, the sensor 2, and the solenoid valve are installed in the box body 4, the gas inlet interface 401 of the solenoid valve and the exhaust outlet 402 of the detection chamber 1 are provided on the box body 4, the gas inlet interface 401 is connected with the gas inlet sub-pipe outside, and the other end is connected with the solenoid valve inlet through the gas inlet connecting pipe 405. The exhaust outlet 402 is connected with the exhaust port 101 of the detection chamber 1 through the exhaust pipe 404, so that the detection gas of the exhaust port 101 is discharged from the inside of the box body 4.

[0028] A wireless signal transmission device 5 is further provided, a corresponding antenna 501 is provided outside the box body 4, the wireless signal transmission device 5 is electrically connected with the sensor 2, the wireless signal transmission device 5 can use 4G signal transmission, of course, it can also be realized by Bluetooth and other ways, as long as it can realize signal transmission. When necessary, wired transmission of data can be used.

[0029] The box 4 comprises a bottom shell and a cover plate, the cover plate is bolted with the bottom shell, the cover plate is arranged to facilitate maintenance, and an observation window can be arranged on the cover plate and the result can be displayed through a display screen arranged on the box 4.

[0030] The sampling air inlet 401 is arranged on the side of the box 4 in parallel, which is actually arranged to facilitate the connection of the detection branch pipe 301 outside the box 4.

[0031] Embodiment 2:

[0032] On the basis of embodiment 1, the following will list an actual application structure of the utility model, for example, the electromagnetic valve is a six-bit electromagnetic valve, the sensor 2 is a nitrogen sensor 6 and a phosphine sensor 7, which can be used for detecting the rotten and deteriorated condition of the grain in the warehouse (nitrogen and phosphine are the products of grain rotting, which can be used for reflecting the grain storage condition and has good effect), at this time, one electromagnetic valve is connected with a cleaning gas, and the other five electromagnetic valves are connected to the other five grain stores needing detection through the detection branch pipe 301, a power supply is connected, a switch button is opened, the equipment needs to be placed for thirty seconds after being powered on again, and the equipment starts to operate after thirty seconds. The first detection branch pipe 301 is opened to inhale the gas from the detection branch pipe 301a, and the first electromagnetic valve is automatically closed after five minutes of operation. After the first electromagnetic valve is closed, the second electromagnetic valve is automatically opened to start inhaling the gas from the detection branch pipe 301b, and the third electromagnetic valve starts to work after 80 seconds of operation. In this way, after five points are detected, the sixth electromagnetic valve operates for 1 minute to clean the cavity to avoid the corrosion of the residual detection gas in the pipeline. After all the electromagnetic valves are operated, a round of detection is completed. The gas concentration of the five points is displayed on the screen.

[0033] The box 4 is provided with an air inlet 403 in communication with the outside air, and the cleaning pipe 303 is in communication with the inside of the box 4, at this time, the cleaning gas is the air in the natural environment, therefore, the air inlet 403 is arranged on the side of the box 4, the cleaning pipe 303 is directly in communication with the inside of the box 4, and a fan for cooling is arranged on the box 4, so that the fan can be used for cooling and promoting air circulation, the air in the inside of the box 4 inhaled by the cleaning pipe 303 is clean air, and if necessary, the exhaust outlet 402 can be extended by a pipeline to the air inlet 403 on the box 4.

[0034] In the description of the utility model, it is understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0035] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] The above is only the preferred embodiment of the utility model, and it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the utility model, and the protection scope of the utility model should be limited by the range defined in the claims. For ordinary skilled in the art, several improvements and refinements can be made without departing from the spirit and scope of the utility model, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A gas concentration detector characterized by comprising: It includes detection cavity, sensor, solenoid valve, the solen valve is three or more units solenoid valve or one three or more solenoid valve to each, solenoid valve one import is connected cleaning gas by cleaning pipe, the rest solenoid valve import is connected detection point by detection branch pipe, solenoid valve export is connected to detection cavity by a detection main pipe, the detection cavity is correspondingly provided with sensor, the detection cavity is provided with exhaust port.

2. The gas concentration detector according to claim 1, wherein Gas pump is further provided on the detection main pipe for extracting each detection point gas or cleaning gas.

3. The gas concentration detector according to claim 1, wherein Box is further provided, the detection cavity, sensor, solenoid valve are installed in the box, the gas inlet interface of solenoid valve and the exhaust outlet of detection cavity are provided on the box.

4. The gas concentration detector according to claim 3, wherein Wireless signal transmission device is further provided, corresponding antenna is provided outside the box, and the wireless signal transmission device is electrically connected with the sensor.

5. The gas concentration detector according to claim 3, wherein The box includes bottom shell and cover plate, and the cover plate is bolted with the bottom shell.

6. The gas concentration detector according to claim 1, wherein The solenoid valve is six-position solenoid valve.

7. A gas concentration detector according to claim 3 or 6, wherein The sampling gas inlet interface is arranged on the side of the box.

8. The gas concentration detector according to claim 7, wherein The gas inlet is arranged on the box and communicates with the outside air, and the cleaning pipe communicates with the inside of the box.

9. The gas concentration detector according to claim 1, wherein The sensor includes nitrogen sensor and phosphine sensor.

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