Waste gas concentration detection device for environmental protection

Abstract

The utility model discloses a waste gas concentration detection device for environmental protection, which relates to the technical field of environmental protection detection and comprises a shell, a processing mechanism is arranged in the shell, a gas inlet is arranged on the surface of the top of the shell, and an outlet is arranged on the surface of one end of the shell. According to the environment-friendly waste gas concentration detection device, the distance between a moving plate and the right end of a pushing rod can be shortened through rotation of a threaded rod, the left end of the pushing rod makes contact with the inner wall of a shell and gradually moves to the position below a gas inlet, waste gas is prevented from continuously entering the shell, and waste gas in the shell is prevented from being too much; and external gas can be prevented from entering the shell to influence the accuracy of subsequent detection, and when the threaded rod rotates reversely subsequently, the moving plate moves towards the left side to push the waste gas in the shell to move and discharge the waste gas in the shell through the gas inlet hole, so that the waste gas remaining in the shell can be reduced, and the detection efficiency is improved. And the precision of subsequent detection is influenced.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection detection technology, specifically to an environmental protection waste gas concentration detection device. Background Technology

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life. This is especially true of chemical plants, steel mills, pharmaceutical factories, coking plants, and oil refineries.

[0003] A search of patent application number CN202222748136.3 reveals a device for detecting the concentration of organic waste gas in environmentally friendly waste gas treatment, relating to the field of concentration detection technology. This device allows for adjustment of the detection end position, enabling the detection of waste gas at different heights within the detection chamber during the waste gas testing process. This allows for the acquisition of an average value of the waste gas detection data, improving the accuracy of the data and increasing the device's practicality. However, during use, if the air inlet is not blocked when waste gas enters the chamber for detection, external gases can easily enter, affecting the detection results. Furthermore, incomplete emission of waste gas during subsequent discharge can leave residual waste gas inside the chamber, which can easily mix with new waste gas, also affecting the accuracy of the detection.

[0004] Further searching patent application number CN201920700750.8 reveals that this utility model discloses an organic waste gas concentration detection device for environmentally friendly waste gas treatment. The advantages of this utility model are: thorough waste gas treatment, compact structure, reasonable design, and strong practicality. However, during use, if the air inlet is not blocked when the waste gas enters the chamber for detection, external gas can easily enter, affecting the detection effect. Furthermore, if the waste gas is not completely discharged afterward, it can easily leave waste gas residue in the chamber, causing the residual waste gas to mix with new waste gas, which will also affect the accuracy of the detection. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present utility model provides an exhaust gas concentration detection device for environmental protection. By moving the moving plate to the right, it is convenient to block the air inlet hole subsequently, prevent exhaust gas from continuing to enter the housing, prevent excessive exhaust gas in the housing, and also prevent external gas from entering the housing, affecting the accuracy of subsequent detection. When the moving plate moves to the left, the exhaust gas is discharged through the air inlet hole, which can reduce the exhaust gas remaining in the housing, solve the problem that external gas enters and affects the detection effect, and when discharging the exhaust gas subsequently, if the discharge is incomplete, it is easy for the exhaust gas to remain in the box body, and the remaining exhaust gas is likely to mix with the new exhaust gas, which will also affect the accuracy of detection.

[0006] To achieve the above objectives, the present utility model is realized through the following technical solutions: An exhaust gas concentration detection device for environmental protection, including a housing, a processing mechanism is provided inside the housing, an air inlet hole is provided on the top surface of the housing, and an outlet is provided on one end surface of the housing.

[0007] The processing mechanism includes a push rod, both ends of the push rod extend into the housing and are in contact with the housing. A moving plate is provided inside the housing and is in contact with the inner wall of the housing. A fixed plate is fixedly provided at the bottom of one end of the push rod. A threaded rod is provided inside the bottom end of the housing. The threaded rod passes through the moving plate and is threadedly connected to the moving plate. A horizontal hole is provided on the surface of the push rod near the air inlet hole, and the width of the horizontal hole is equal to the diameter of the air inlet hole. A motor is provided at one end of the threaded rod, and the motor is located outside the housing.

[0008] Preferably, the width of the push rod is greater than the diameter of the air inlet hole, and a baffle is provided on the side of the fixed plate away from the housing.

[0009] Preferably, the baffle is in contact with the fixed plate, and a guide rod is provided between the baffle and the housing.

[0010] Preferably, the guide rod passes through the fixed plate and is in contact with the fixed plate, and a connecting spring is provided around the outside of the guide rod.

[0011] Preferably, a sleeve is provided on one side of the moving plate, an annular plate is provided inside the sleeve, and the cross-sectional shape of the annular plate is "mouth" shaped.

[0012] Preferably, the sleeve is in contact with the annular plate, and a chute is provided on the inner wall of the top end of the sleeve.

[0013] Preferably, an extension rod is fixedly provided at the top end of the annular plate, the extension rod is fixedly connected to the annular plate, and one end of the extension rod is in contact with the sleeve.

[0014] Preferably, one end of the extension rod extends into the interior of the groove, and a detection end is provided inside the end of the annular plate away from the extension rod.

[0015] Preferably, an exhaust gas detector is fixedly installed inside the end of the sleeve away from the detection end, a spring wire is provided between the exhaust gas detector and the detection end, the sleeve is adapted to the outlet, and the spring wire is located inside the annular plate. Beneficial effects

[0016] This invention provides an environmentally friendly waste gas concentration detection device. Compared with the prior art, it has the following advantages:

[0017] 1. This environmentally friendly waste gas concentration detection device reduces the distance between the moving plate and the right end of the push rod by rotating the threaded rod. As the moving plate moves, the push rod moves simultaneously, separating the right end of the push rod from the inner wall of the top of the outer casing, while the left end contacts the inner wall of the outer casing. The push rod then gradually moves below the air inlet, automatically blocking the air inlet to prevent waste gas from entering the outer casing, thus preventing excessive waste gas accumulation and preventing external gases from entering and affecting the accuracy of subsequent detection. Furthermore, when the threaded rod is reversed, the moving plate moves to the left, pushing the waste gas in the outer casing to move and discharge through the air inlet, reducing waste gas residue in the outer casing and minimizing its impact on the accuracy of subsequent detection.

[0018] 2. This environmentally friendly waste gas concentration detection device, through the pushing of the extension rod, allows the extension rod to move along the slide groove, and the annular plate fixedly connected to the extension rod moves simultaneously, pushing the detection end inside the annular plate to move, and stretching the spring wire, which can change the position of the detection end and perform detection at different positions of the outer shell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a perspective view of the processing mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the sleeve and extension rod of this utility model;

[0022] Figure 4 This is a perspective view of the motion plate and the ring plate of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Processing mechanism; 201. Push rod; 202. Moving plate; 203. Fixing plate; 204. Threaded rod; 205. Horizontal hole; 206. Motor; 207. Baffle; 208. Guide rod; 209. Annular plate; 210. Slide groove; 211. Extension rod; 212. Detection end; 213. Exhaust gas detector; 214. Spring wire; 215. Sleeve; 3. Air inlet; 4. Outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an environmentally friendly waste gas concentration detection device, including a shell 1, a processing mechanism 2 inside the shell 1, an air inlet 3 on the top surface of the shell 1, and an outlet 4 on one end surface of the shell 1, so that an external waste gas conveying pipe can be connected to the air inlet 3 through a horizontal hole 205, allowing waste gas to enter the shell 1 through the air inlet 3.

[0026] The processing mechanism 2 includes a push rod 201, both ends of which extend into and contact the interior of the outer casing 1. A moving plate 202 is disposed inside the outer casing 1 and contacts the inner wall of the outer casing 1. A fixing plate 203 is fixedly disposed at the bottom of one end of the push rod 201. A threaded rod 204 is disposed inside the bottom end of the outer casing 1, passing through the moving plate 202 and threadedly connected to it. A transverse hole 205 is disposed on the surface of the end of the push rod 201 near the air inlet 3, the width of which is equal to the diameter of the air inlet 3. A motor 206 is disposed at one end of the threaded rod 204. Located on the outside of the outer casing 1, the width of the push rod 201 is greater than the diameter of the air inlet 3. A baffle 207 is provided on the side of the fixing plate 203 away from the outer casing 1. The baffle 207 contacts the fixing plate 203. A guide rod 208 is provided between the baffle 207 and the outer casing 1. The guide rod 208 passes through the fixing plate 203 and contacts the fixing plate 203. A connecting spring is provided around the outside of the guide rod 208. During the conveying process, the motor 206 is used first. Since the output shaft end of the motor 206 is connected to the threaded rod 204, the motor 206 can make the threaded rod 204 rotate, so that the motor 206 is inside the bottom of the outer casing 1. The part rotates, and during the rotation of the threaded rod 204, since the threaded rod 204 is threadedly connected to the moving plate 202, the rotation of the threaded rod 204 causes the moving plate 202 to move, causing the moving plate 202 and the annular plate 209 to move simultaneously, gradually reducing the distance to the outlet 4. When the moving plate 202 moves to the right end inner wall of the outer casing 1, it first contacts the right end of the push rod 201, pushing the push rod 201 to move. Since the push rod 201 is fixedly connected to the fixed plate 203, the fixed plate 203 can move along with the push rod 201, and the guide rod 208 passes through the fixed plate 203, making the fixed plate 203 move as the push rod 201 moves. The fixed plate 203 and the push rod 201 move along the guide rod 208, compressing the connecting spring at the guide rod 208 to facilitate subsequent operations. By moving the push rod 201, the right end of the push rod 201 can separate from the inner wall of the top of the outer casing 1, and the left end of the push rod 201 can contact the inner wall of the outer casing 1 and gradually move to the bottom of the air inlet 3. Since the width of the push rod 201 is greater than the diameter of the air inlet 3, the push rod 201 can automatically block the air inlet 3, preventing exhaust gas from continuing to enter the outer casing 1, preventing excessive exhaust gas in the outer casing 1, and also preventing external gas from entering the outer casing 1, which would affect the accuracy of subsequent detection.

[0027] Please see Figure 1-4A sleeve 215 is provided on one side of the moving plate 202. An annular plate 209 is provided inside the sleeve 215, and the cross-sectional shape of the annular plate 209 is "U". The sleeve 215 contacts the annular plate 209. A groove 210 is provided on the inner wall of the top end of the sleeve 215. An extension rod 211 is fixedly provided at the top end of the annular plate 209. The extension rod 211 is fixedly connected to the annular plate 209, and one end of the extension rod 211 contacts the sleeve 215. One end of the extension rod 211 extends into the groove 210. A detection end 212 is provided inside the end of the annular plate 209 away from the extension rod 211. An exhaust gas detector 213 is fixedly provided inside the end of the sleeve 215 away from the detection end 212. The exhaust gas detector 213 and... A spring wire 214 is provided between the detection ends 212. The sleeve 215 is adapted to the outlet 4. The spring wire 214 is located inside the annular plate 209. When the moving plate 202 contacts the inner wall of the right end of the outer shell 1, the extension rod 211 will be located at the right end of the outer shell 1 for convenient subsequent operation. Then, the extension rod 211 is pushed, which allows the extension rod 211 to move along the slide groove 210. The annular plate 209, which is fixedly connected to the extension rod 211, moves at the same time, which pushes the detection end 212 inside the annular plate 209 to move and stretches the spring wire 214. This can change the position of the detection end 212, allowing detection at different positions of the outer shell 1. The waste gas concentration is detected by the waste gas detector 213 and the detection end 212.

[0028] During operation, the rotation of the threaded rod 204 reduces the distance between the moving plate 202 and the right end of the push rod 201. Subsequently, as the moving plate 202 moves, the push rod 201 moves simultaneously, separating the right end of the push rod 201 from the inner wall of the top of the outer casing 1, while the left end of the push rod 201 contacts the inner wall of the outer casing 1. The push rod 201 then gradually moves below the air inlet 3, automatically blocking the air inlet 3 to prevent exhaust gas from continuing to enter the outer casing 1, thus preventing excessive exhaust gas in the outer casing 1 and preventing external gas 1 from entering the outer casing and affecting the accuracy of subsequent detection. Furthermore, when the threaded rod 204 is reversed, the moving plate 202 moves to the left, pushing the exhaust gas in the outer casing 1 to move and discharge through the air inlet 3, reducing the amount of exhaust gas remaining in the outer casing 1 and minimizing its impact on the accuracy of subsequent detection.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An environmental protection waste gas concentration detection device, comprising a shell (1), characterized in that: Inside the said housing (1), a processing mechanism (2) is provided. On the top surface of the housing (1), an air inlet hole (3) is provided, and on one end surface of the housing (1), an outlet (4) is provided; The said processing mechanism (2) includes a push rod (201). Both ends of the push rod (201) extend into the interior of the housing (1) and are in contact with the housing (1). Inside the housing (1), a moving plate (202) is provided, and the moving plate (202) is in contact with the inner wall of the housing (1). At the bottom of one end of the push rod (201), a fixing plate (203) is fixedly provided. Inside the bottom end of the housing (1), a threaded rod (204) is provided. The threaded rod (204) penetrates through the moving plate (202) and is threadedly connected to the moving plate (202). On the surface of the push rod (201) near the air inlet hole (3), a horizontal hole (205) is provided. The width of the horizontal hole (205) is equal to the diameter of the air inlet hole (3). At one end of the threaded rod (204), a motor (206) is provided, and the motor (206) is located outside the housing (1).

2. The waste gas concentration detection device for environmental protection according to claim 1, characterized in that: The width of the push rod (201) is greater than the diameter of the air inlet hole (3). On the side of the fixing plate (203) away from the housing (1), a baffle plate (207) is provided.

3. The waste gas concentration detection device for environmental protection according to claim 2, characterized in that: The baffle plate (207) is in contact with the fixing plate (203). Between the baffle plate (207) and the housing (1), a guide rod (208) is provided.

4. The waste gas concentration detection device for environmental protection according to claim 3, characterized in that: The guide rod (208) penetrates through the fixing plate (203) and is in contact with the fixing plate (203). A connecting spring is wound around the outer side of the guide rod (208).

5. The waste gas concentration detection device for environmental protection according to claim 1, characterized in that: On one side of the moving plate (202), a sleeve (215) is provided. Inside the sleeve (215), an annular plate (209) is provided, and the cross-sectional shape of the annular plate (209) is "mouth" shaped.

6. The waste gas concentration detection device for environmental protection according to claim 5, characterized in that: The sleeve (215) is in contact with the annular plate (209). On the inner wall of the top end of the sleeve (215), a chute (210) is provided.

7. The waste gas concentration detection device for environmental protection according to claim 6, characterized in that: At the top end of the annular plate (209), an extension rod (211) is fixedly provided. The extension rod (211) is fixedly connected to the annular plate (209), and one end of the extension rod (211) is in contact with the sleeve (215).

8. The waste gas concentration detection device for environmental protection according to claim 7, characterized in that: One end of the extension rod (211) extends into the interior of the chute (210). Inside the end of the annular plate (209) away from the extension rod (211), a detection end (212) is provided.

9. The device for detecting the concentration of exhaust gas according to claim 8, characterized in that: Inside the end of the sleeve (215) away from the detection end (212), an exhaust gas detector (213) is fixedly provided. Between the exhaust gas detector (213) and the detection end (212), a spring wire (214) is provided. The sleeve (215) is adapted to the outlet (4). The spring wire (214) is located inside the annular plate (209).

Images