Gas detection device

Abstract

The utility model provides a gas detection device. The gas detection device comprises a body part, a dust concentration detection module, a gas concentration detection module, a circuit board and a data transmission module, the body part is provided with a dust concentration detection gas chamber and a gas concentration detection gas chamber which are mutually independent; the dust concentration detection module is arranged in the dust concentration detection gas chamber to detect the dust concentration in the gas; the gas concentration detection module is arranged in the gas concentration detection gas chamber so as to detect the gas concentration in the gas; the circuit board is electrically connected with the dust concentration detection module and the gas concentration detection module and used for receiving signals. And the data transmission module is arranged on the circuit board and is used for transmitting information on the circuit board to a terminal. The dust concentration and the gas concentration can be detected at the same time only through one gas detection device, and the problem that in the prior art, the dust concentration and the gas concentration are detected through two independent detection devices respectively, and cost is high is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas detection technical field, specifically, relate to a gas detection device. BACKGROUND

[0002] In the mine operation, dust and gas concentration monitoring is the cornerstone of guaranteeing the operation safety and maintaining the health of staff. Dust can cause visibility to reduce, influence the normal production of mine, can also harm the health of staff. And the main component of gas is methane, is a kind of flammable and explosive gas, under high concentration, can cause explosion, influence the safety of mine. Therefore, accurately, fast monitoring dust and gas concentration, for preventing mine accident, improving working environment has the vital role.

[0003] In the traditional technical scheme, dust concentration and gas concentration are detected by two independent detection devices respectively, which increases the cost. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of gas detection device, to solve the problem of higher cost in prior art by two independent detection devices respectively detecting dust concentration and gas concentration respectively.

[0005] The utility model provides a kind of gas detection device, it includes: the body part has the dust concentration detection gas chamber and gas concentration detection gas chamber that are independent of each other, dust concentration detection gas chamber and gas concentration detection gas chamber are communicated with the space outside the body part respectively;Dust concentration detection module is set in dust concentration detection gas chamber, to detect the dust concentration in dust concentration detection gas chamber;Gas concentration detection module is set in gas concentration detection gas chamber, to detect the gas concentration in gas concentration detection gas chamber;Circuit board is set on the body part, dust concentration detection module and gas concentration detection module are electrically connected with circuit board respectively, and circuit board processes the signal detected by dust concentration detection module and the signal detected by gas concentration detection module;Data transmission module is set on circuit board and is electrically connected with circuit board, and data transmission module is used to pass the information on circuit board to terminal.

[0006] Further, the body part also has installation cavity, installation cavity is independent with dust concentration detection gas chamber and gas concentration detection gas chamber respectively, and circuit board and data transmission module are all located in installation cavity.

[0007] Further, dust concentration detection gas chamber and gas concentration detection gas chamber are distributed along the length direction of the body part, and installation cavity is located below dust concentration detection gas chamber and gas concentration detection gas chamber.

[0008] Further, the dust concentration detection module comprises: a first laser emitter; a first laser receiver, which is electrically connected with the first laser emitter, receives a first light signal of the first laser emitter, converts the first light signal into a first electric signal, and transmits the first electric signal to the circuit board.

[0009] Further, the gas concentration detection module comprises: a second laser emitter; a second laser receiver, which is electrically connected with the second laser emitter, receives a second light signal of the second laser emitter, converts the second light signal into a second electric signal, and transmits the second electric signal to the circuit board.

[0010] Further, the dust concentration detection module further comprises a first light path adjusting member, which is used for adjusting the direction of the first laser beam emitted by the first laser emitter; and the gas concentration detection module further comprises a second light path adjusting member, which is used for adjusting the direction of the second laser beam emitted by the second laser emitter.

[0011] Further, the dust concentration detection module further comprises a first temperature adjusting member, which is arranged on the first laser emitter, and the temperature of the first temperature adjusting member is adjustable; the first temperature adjusting member exchanges heat with the first laser emitter to adjust the temperature of the first laser emitter; and the gas concentration detection module further comprises a second temperature adjusting member, which is arranged on the second laser emitter, and the temperature of the second temperature adjusting member is adjustable; the second temperature adjusting member exchanges heat with the second laser emitter to adjust the temperature of the second laser emitter.

[0012] Further, the body part is provided with a first air inlet and a first air outlet, and the first air inlet and the first air outlet are respectively communicated with the dust concentration detection gas chamber; and the body part is provided with a second air inlet and a second air outlet, and the second air inlet and the second air outlet are respectively communicated with the gas concentration detection gas chamber.

[0013] The gas detection device further comprises: a first fan component arranged in the dust concentration detection gas chamber, which is used for blowing air in the direction from the first air inlet to the first air outlet; and a second fan component arranged in the gas concentration detection gas chamber, which is used for blowing air in the direction from the second air inlet to the second air outlet.

[0014] Further, the gas detection device further comprises: a filter part arranged at the second air inlet, which is used for filtering dust entering into the gas concentration detection gas chamber.

[0015] Further, the data transmission module is a wireless data transmission module, and the gas detection device further comprises: a shielding cover, which is arranged on the outer periphery of the wireless data transmission module.

[0016] The technical scheme of the utility model integrates the dust concentration detection module and the gas concentration detection module in the same body part, so that the gas detection device has the ability to detect dust and gas concentration, and only one gas detection device can realize the detection of dust concentration and gas concentration, thereby reducing the production cost and improving the functional integration of the gas detection device.

[0017] After the gas to be detected enters the body part, the gas enters the dust concentration detection gas chamber and the gas concentration detection gas chamber, the two gas chambers are independent of each other in the body part and can work simultaneously, in the dust concentration detection gas chamber, the dust concentration detection module detects the dust concentration in the gas, in the gas concentration detection gas chamber, the gas concentration detection module simultaneously detects the gas concentration in the gas, after the detection is completed, the circuit board receives and processes the signals from the two detection modules, and then transmits the detection signals processed by the circuit board to the remote terminal through the data transmission module. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the present application, serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0019] Figure 1 A cross-sectional structure schematic view of a first perspective of the gas detection device provided by the utility model is shown;

[0020] Figure 2 A cross-sectional structure schematic view of a second perspective of the gas detection device provided by the utility model is shown;

[0021] Figure 3 A structure schematic view of a first perspective of the gas detection device provided by the utility model is shown;

[0022] Figure 4 A structure schematic view of a second perspective of the gas detection device provided by the utility model is shown;

[0023] Figure 5 A structure schematic view of a first laser emitter and a first temperature adjusting part provided by the utility model is shown;

[0024] Figure 6The utility model discloses a second laser transmitter and second temperature adjusting piece's structural diagram.

[0025] Among them, the above-mentioned drawing includes following figure mark:

[0026] 10, the body part;

[0027] 101, dust concentration detection gas chamber; 102, gas concentration detection gas chamber; 103, installation cavity; 104, first air inlet; 105, first air outlet; 106, second air inlet; 107, second air outlet; 108, gas total inlet;

[0028] 11, vertical partition; 12, horizontal partition;

[0029] 21, first laser transmitter; 22, first laser receiver; 23, first light path adjusting piece; 24, first temperature adjusting piece;

[0030] 31, second laser transmitter; 32, second laser receiver; 33, second light path adjusting piece; 34, second temperature adjusting piece;

[0031] 40, circuit board;

[0032] 50, data transmission module;

[0033] 60, first fan part;

[0034] 70, second fan part;

[0035] 80, filter part;

[0036] 90, shield cover. DETAILED DESCRIPTION

[0037] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the utility model embodiment, rather than all the embodiment. The description of the at least one exemplary embodiment is actually only illustrative, and is by no means as any limitation to the utility model and its application or use. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the scope of the utility model protection.

[0038] As Figure 1 And Figure 2The utility model discloses a gas detection device, it includes body part 10, dust concentration detection module, gas detection concentration module, circuit board 40 and data transmission module 50, body part 10 has the dust concentration detection gas chamber 101 and gas concentration detection gas chamber 102 that are independent of each other, and the dust concentration detection gas chamber 101 and gas concentration detection gas chamber 102 are communicated with the space outside body part 10 respectively, dust concentration detection module is arranged in dust concentration detection gas chamber 101, to detect the dust concentration in dust concentration detection gas chamber 101, gas detection concentration module is arranged in gas concentration detection gas chamber 102, to detect the gas concentration in gas concentration detection gas chamber 102, circuit board 40 is arranged on body part 10, and dust concentration detection module and gas detection concentration module are electrically connected with circuit board 40 respectively, and circuit board 40 handles the signal of dust concentration detection module detection and the signal of gas detection concentration module detection, data transmission module 50 is arranged on circuit board 40, and is electrically connected with circuit board 40, and data transmission module 50 is used to deliver the information on circuit board 40 to terminal.

[0039] The utility model discloses a technical scheme, dust concentration detection module and gas detection concentration module are integrated in same body part 10, make this gas detection device have the ability of detecting dust and gas concentration simultaneously, only need a gas detection device can realize the detection of dust concentration and gas concentration, reduce production cost, improve the function integration of gas detection device.

[0040] Specifically, when dust concentration and gas concentration need to be detected, gas enters dust concentration detection gas chamber 101 and gas concentration detection gas chamber 102, two gas chambers are independent of each other in body part 10 and can work simultaneously, in dust concentration detection gas chamber 101, dust concentration detection module detects dust concentration in gas, in gas concentration detection gas chamber 102, gas detection concentration module simultaneously detects gas concentration in gas, after detection, circuit board 40 receives and processes signals from two detection modules, then transmits detection signals processed by circuit board 40 to remote terminal through data transmission module 50. Dust concentration detection and gas concentration detection can be simultaneously and relatively independently performed in same gas detection device, the number of required equipment is reduced, production cost is reduced, working time is reduced, monitoring efficiency is improved, the synergies of circuit board 40 and data transmission module 50 can quickly analyze data from two detection modules and transmit detection information to terminal in time, improve real-time detection and data transmission stability.

[0041] In the embodiment of the present application, the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 are separated by a vertical partition plate 11, so that the functions of the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 can be performed independently of each other.

[0042] As shown in Figure 2 Further, the body part 10 also has a mounting cavity 103, which is independent of the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 respectively, and the circuit board 40 and the data transmission module 50 are located in the mounting cavity 103. The above-mentioned arrangement makes the circuit board 40 and the data transmission module 50 not directly exposed to the external environment, reduces the direct influence of the external environment, such as dust, gas, and humidity, on the circuit board 40 and the data transmission module 50, so that the circuit board 40 and the data transmission module 50 can work in a relatively stable working environment, improving the safety and reliability of the gas detection device and the stability of data processing.

[0043] Further, the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 are distributed along the length direction of the body part 10, and the mounting cavity 103 is located below the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102. The above-mentioned arrangement makes the overall structure of the gas detection device more compact, saves space in the height direction, so that the gas detection device can also be used in an environment with limited space, improving the adaptability of the gas detection device. The mounting cavity 103 is arranged below the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102, so that the maintenance personnel can maintain, replace, and other operations on the circuit board 40 and the data transmission module 50 without disturbing the detection gas chamber, improving the operation convenience.

[0044] In the embodiment of the present scheme, the gas detection device further comprises a horizontal partition plate 12, which is horizontally arranged in the body part 10 and below the vertical partition plate 11; the horizontal partition plate 12 and the vertical partition plate 11 divide the space inside the body part 10 into the dust concentration detection gas chamber 101, the gas concentration detection gas chamber 102, and the mounting cavity 103 which are independent of each other.

[0045] As shown in Figure 1 and Figure 2 Further, the dust concentration detection module comprises a first laser emitter 21 and a first laser receiver 22, the first laser receiver 22 is electrically connected with the first laser emitter 21, the first laser receiver 22 receives the first optical signal of the first laser emitter 21, and converts the first optical signal into a first electrical signal and transmits it to the circuit board 40.

[0046] Specifically, during the dust concentration detection process, the first laser emitter 21 emits laser, the laser passes through the gas in the dust concentration detection gas chamber 101, the first laser receiver 22 can receive the laser emitted by the first laser emitter 21, and the received optical signal is converted into a first electrical signal, and the converted first electrical signal is then transmitted to the circuit board 40, and the circuit board 40 processes the received first electrical signal.

[0047] Further, the gas concentration detection module comprises a second laser emitter 31 and a second laser receiver 32, the second laser receiver 32 is electrically connected with the second laser emitter 31, the second laser receiver 32 receives a second optical signal of the second laser emitter 31, and converts the second optical signal into a second electrical signal and transmits the second electrical signal to the circuit board 40.

[0048] Specifically, during the gas concentration detection process, the second laser emitter 31 emits laser, the laser passes through the gas in the gas concentration detection gas chamber 102, the second laser receiver 32 can receive the laser emitted by the second laser emitter 31, and the received optical signal is converted into a second electrical signal, and the converted second electrical signal is transmitted to the circuit board 40, and the circuit board 40 processes the received second electrical signal.

[0049] Further, the dust concentration detection module further comprises a first optical path adjusting piece 23, the first optical path adjusting piece 23 is used for adjusting the direction of the first laser beam emitted by the first laser emitter 21; the gas concentration detection module further comprises a second optical path adjusting piece 33, the second optical path adjusting piece 33 is used for adjusting the direction of the second laser beam emitted by the second laser emitter 31.

[0050] In the embodiment of the present scheme, the first optical path adjusting piece 23 and the second optical path adjusting piece 33 can adjust the optical path of the laser, change the original path of the laser, and finally make the laser accurately emit to the first laser receiver 22 and the second laser receiver 32. By adjusting the optical path of the laser, the layout of the optical path in the gas detection device can be optimized, so that the structure of the gas detection device is more compact, while ensuring the effective transmission of the light beam, reducing the volume of the device and improving the portability.

[0051] In the embodiment of the present scheme, the first optical path adjusting piece 23 can be specifically set as a first mirror; and the second optical path adjusting piece 33 can be specifically set as a second mirror.

[0052] As Figure 5 and Figure 6As shown, further, the dust concentration detection module further comprises a first temperature adjusting member 24 arranged on the first laser emitter 21, the temperature of the first temperature adjusting member 24 being adjustable, the first temperature adjusting member 24 being in heat exchange with the first laser emitter 21 to adjust the temperature of the first laser emitter 21; the gas concentration detection module further comprises a second temperature adjusting member 34 arranged on the second laser emitter 31, the temperature of the second temperature adjusting member 34 being adjustable, the second temperature adjusting member 34 being in heat exchange with the second laser emitter 31 to adjust the temperature of the second laser emitter 31.

[0053] The first temperature adjusting member 24 and the second temperature adjusting member 34 can automatically heat or cool according to the set value, ensuring that the first laser emitter 21 and the second laser emitter 31 are at a constant temperature most suitable for working, so that the influence of external temperature changes on the wavelength of the laser is reduced, and the stable control of the temperature helps to reduce the thermal stress of the laser emitter, avoid damage caused by overheating or overcooling, prolong the service life of the laser emitter, and improve the stability and detection accuracy of the gas detection device.

[0054] In the embodiment of the present scheme, the first temperature adjusting member 24 can be specifically a first semiconductor refrigerator; and the second temperature adjusting member 34 can be specifically a second semiconductor refrigerator.

[0055] As shown in Figure 1 and Figure 3 As shown, further, the body part 10 is provided with a first gas inlet 104, a first gas outlet 105, a second gas inlet 106 and a second gas outlet 107, the first gas inlet 104 and the first gas outlet 105 being in communication with the dust concentration detection gas chamber 101 respectively; and the second gas inlet 106 and the second gas outlet 107 being in communication with the gas concentration detection gas chamber 102 respectively.

[0056] In the embodiment of the present scheme, the gas to be detected enters the dust concentration detection gas chamber 101 through the first gas inlet 104, and after the dust concentration of the gas is detected, the gas is discharged through the first gas outlet 105; the gas to be detected enters the gas concentration detection gas chamber 102 through the second gas inlet 106, and after the gas concentration of the gas is detected, the gas is discharged through the second gas outlet 107. By separately providing the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 with a gas inlet and a gas outlet, the air in the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 is in a flowing state, improving the detection efficiency and accuracy.

[0057] As shown in Figure 4As shown, in the embodiment of the present scheme, the body part 10 is provided with a gas total inlet 108, and the gas to be detected enters the gas detection device through the gas total inlet 108, and then enters the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 through the first gas inlet 104 and the second gas inlet 106 respectively.

[0058] As shown, Figure 1 Further, the gas detection device further comprises a first fan part 60 and a second fan part 70, the first fan part 60 is arranged in the dust concentration detection gas chamber 101, and the first fan part 60 is used to blow air to the direction from the first gas inlet 104 to the first gas outlet 105; the second fan part 70 is arranged in the gas concentration detection gas chamber 102, and the second fan part 70 is used to blow air to the direction from the second gas inlet 106 to the second gas outlet 107.

[0059] The first fan part 60 and the second fan part 70 can suck the gas into the dust concentration detection gas chamber 101 and the gas concentration detection gas chamber 102 respectively, and discharge the gas from the first gas outlet 105 and the second gas outlet 107 respectively, and can prevent backflow of the air flow, promote the air flow in the gas detection device, help the air in the gas detection device to be uniformly distributed, reduce the interference of natural convection or irregular flow on the gas detection, and improve the accuracy and reliability of the detection result.

[0060] Further, the gas detection device further comprises a filter part 80, the filter part 80 is arranged at the second gas inlet 106, and the filter part 80 is used to filter the dust entering the gas concentration detection gas chamber 102. The dust can cause the laser to scatter, resulting in deviation of the gas concentration detection result. The above arrangement can greatly reduce the dust concentration of the gas entering the gas concentration detection gas chamber 102, reduce the influence of the dust on the gas concentration detection, and improve the accuracy of the gas concentration detection.

[0061] In the embodiment of the present scheme, the filter part 80 is detachable, which is convenient for replacement or cleaning, and can prevent excessive accumulation of dust due to long use of the filter part 80, thereby affecting the filtering effect.

[0062] As shown, Figure 2 Further, the data transmission module 50 is a wireless data transmission module, and the gas detection device further comprises a shielding cover 90, the shielding cover 90 covers the outer periphery of the wireless data transmission module.

[0063] In the embodiment of the present scheme, the use of the wireless data transmission module reduces the dependence on the signal line, simplifies the installation and wiring process. The shield 90 can effectively reduce the interference of the electromagnetic environment on the wireless data transmission module, improve the anti-interference ability of wireless transmission, and at the same time, the shield 90 can also provide physical protection for the wireless data transmission module, prevent dust, moisture or slight collision from causing damage to it, and improve the accuracy and stability of data transmission.

[0064] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0065] The relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be considered as part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0066] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without the opposite indication, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0067] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Well, the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0068] In addition, it needs to be explained that the use of "first", "second" and the like words to limit the parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the restriction of the scope of protection of the utility model.

[0069] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas detection device, characterized by, include: The main body (10) has a dust concentration detection chamber (101) and a gas concentration detection chamber (102) that are independent of each other. The dust concentration detection chamber (101) and the gas concentration detection chamber (102) are respectively connected to the space outside the main body (10). A dust concentration detection module is installed inside the dust concentration detection chamber (101) to detect the dust concentration inside the dust concentration detection chamber (101); A gas concentration detection module is installed inside the gas concentration detection chamber (102) to detect the gas concentration inside the gas concentration detection chamber (102); A circuit board (40) is disposed on the main body (10). The dust concentration detection module and the gas concentration detection module are electrically connected to the circuit board (40) respectively. The circuit board (40) processes the signals detected by the dust concentration detection module and the signals detected by the gas concentration detection module. A data transmission module (50) is disposed on the circuit board (40) and electrically connected to the circuit board (40). The data transmission module (50) is used to transmit information on the circuit board (40) to the terminal.

2. The gas detection device of claim 1, wherein, The main body (10) also has a mounting cavity (103), which is independent of the dust concentration detection chamber (101) and the gas concentration detection chamber (102), respectively. The circuit board (40) and the data transmission module (50) are both located in the mounting cavity (103).

3. The gas detection device of claim 2, wherein, The dust concentration detection chamber (101) and the gas concentration detection chamber (102) are distributed along the length of the main body (10), and the mounting cavity (103) is located below the dust concentration detection chamber (101) and the gas concentration detection chamber (102).

4. The gas detection device of claim 1, wherein, The dust concentration detection module includes: First laser emitter (21); The first laser receiver (22) is electrically connected to the first laser transmitter (21). The first laser receiver (22) receives the first optical signal from the first laser transmitter (21) and converts the first optical signal into a first electrical signal and transmits it to the circuit board (40).

5. The gas detection device of claim 4, wherein, The gas concentration detection module includes: Second laser emitter (31); The second laser receiver (32) is electrically connected to the second laser transmitter (31). The second laser receiver (32) receives the second optical signal from the second laser transmitter (31) and converts the second optical signal into a second electrical signal and transmits it to the circuit board (40).

6. The gas detection device according to claim 5, characterized in that, The dust concentration detection module further includes a first optical path adjustment component (23), which is used to adjust the direction of the first laser beam emitted by the first laser emitter (21); The gas detection concentration module further comprises a second light path adjusting member (33) for adjusting the direction of the second laser beam emitted by the second laser emitter (31).

7. The gas detection device according to claim 5, characterized in that, The dust concentration detection module further comprises a first temperature adjusting member (24) arranged on the first laser emitter (21), the temperature of the first temperature adjusting member (24) being adjustable, the first temperature adjusting member (24) being in heat exchange with the first laser emitter (21) to adjust the temperature of the first laser emitter (21). The gas detection concentration module further comprises a second temperature adjusting member (34) arranged on the second laser emitter (31), the temperature of the second temperature adjusting member (34) being adjustable, the second temperature adjusting member (34) being in heat exchange with the second laser emitter (31) to adjust the temperature of the second laser emitter (31).

8. The gas detection device of claim 1, wherein, The body part (10) is provided with a first air inlet (104) and a first air outlet (105), the first air inlet (104) and the first air outlet (105) being in communication with the dust concentration detection gas chamber (101) respectively; the body part (10) is provided with a second air inlet (106) and a second air outlet (107), the second air inlet (106) and the second air outlet (107) being in communication with the gas concentration detection gas chamber (102) respectively; the gas detection device further comprises: A first fan component (60) arranged in the dust concentration detection gas chamber (101), the first fan component (60) being used for blowing air to the direction from the first air inlet (104) to the first air outlet (105); A second fan component (70) arranged in the gas concentration detection gas chamber (102), the second fan component (70) being used for blowing air to the direction from the second air inlet (106) to the second air outlet (107).

9. The gas detection device of claim 8, wherein, The gas detection device further comprises: A filter part (80) arranged at the second air inlet (106), the filter part (80) being used for filtering dust entering into the gas concentration detection gas chamber (102).

10. The gas detection device of claim 1, wherein, The data transmission module (50) is a wireless data transmission module, and the gas detection device further comprises: A shielding cover (90) covering the outer periphery of the wireless data transmission module.

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