Coke oven waste gas sampling device

Abstract

The utility model discloses a coke oven waste gas sampling device and relates to the technical field of waste gas sampling devices. The sampling device comprises an air bag, wherein an anti-leakage mechanism and a sampling mechanism are arranged on the air bag; supporting plates are fixedly connected to the top and the bottom of the air bag, a plurality of gaskets are fixedly connected to the sides, away from each other, of the two supporting plates, a round hole is formed in the supporting plate located on the upper portion, the anti-leakage mechanism comprises a transfer shell arranged on the top of the air bag in a communicating mode, and the top of the transfer shell penetrates through the round hole. The sampling mechanism comprises a plurality of telescopic rods which are fixedly connected between the two supporting plates. According to the coke oven waste gas sampling device disclosed by the utility model, the leakage-proof mechanism is arranged, so that the problem that the accuracy of a final detection result is influenced due to inconvenience in preventing sampled gas leakage, enabling outside air to enter the sampling device, diluting a waste gas sample and changing the proportion of each component in the waste gas in the use process of the existing coke oven waste gas sampling device is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste gas sampling devices, and in particular relates to a coke oven waste gas sampling device. Background Technology

[0002] In the coking industry, coke ovens generate a large amount of waste gas during production. These waste gases are complex in composition, including sulfur dioxide, nitrogen oxides, particulate matter, and various organic pollutants. Accurately monitoring the composition and content of coke oven waste gas is of vital importance for assessing the combustion efficiency of coke ovens, controlling pollutant emissions, optimizing production processes, and protecting the environment.

[0003] However, existing coke oven exhaust gas sampling devices are not easy to prevent gas leakage after sampling, which allows outside air to enter the sampling device, dilutes the exhaust gas sample, changes the proportion of various components in the exhaust gas, and thus affects the accuracy of the final test results. Utility Model Content

[0004] The purpose of this invention is to provide a coke oven exhaust gas sampling device. By setting up an anti-leakage mechanism, it solves the problem that existing coke oven exhaust gas sampling devices are not easy to prevent gas leakage after sampling, allowing outside air to enter the sampling device, diluting the exhaust gas sample, changing the proportion of various components in the exhaust gas, and thus affecting the accuracy of the final test results.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a coke oven exhaust gas sampling device, including an air bag, on which a leak prevention mechanism and a sampling mechanism are provided;

[0007] The top and bottom of the airbag are fixedly connected to support plates, and several gaskets are fixedly connected to the sides of the two support plates that are far apart from each other. A circular hole is opened on the upper support plate. The anti-leakage mechanism includes a transfer shell connected to the top of the airbag. The top of the transfer shell has a through circular hole. The sampling mechanism includes several telescopic rods fixedly connected between the two support plates.

[0008] Furthermore, an air inlet pipe is connected to the left side of the transfer shell, and an air outlet pipe is connected to the right side of the transfer shell. A filter plate is fixedly connected to the inner wall of the air inlet pipe, and a ring is fixedly connected to the inner wall of both the air inlet pipe and the air outlet pipe.

[0009] Furthermore, a cross support frame is fixedly connected to the inner wall of both the air inlet pipe and the air outlet pipe, and a piston is slidably connected to the inner wall of both of the two rings.

[0010] Furthermore, each of the two pistons is fixedly connected to a sliding rod on its right side, and the right side of each sliding rod passes through two cross support frames, with each sliding rod slidably connected to the two cross support frames.

[0011] Furthermore, a spring is fitted on the outer wall of each of the two slide rods. The left side of each spring is fixedly connected to the two pistons, and the right side of each spring is fixedly connected to the two cross support frames.

[0012] Furthermore, spring 2 is fitted on the outer wall of several of the telescopic rods, and two support plates are fixedly connected to the top and bottom of several spring 2 respectively, with a rectangular groove opened on the upper support plate.

[0013] Furthermore, a spring piece is fixedly connected to the top of the second spring located below, the top of the spring piece passes through a rectangular groove, and a triangular locking block is fixedly connected to the rear side of the spring piece.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting up an anti-leakage mechanism, during air intake, due to the negative pressure inside the air bladder, the piston in the intake pipe will move to the right, compressing the spring on the slide rod and generating elastic force until a gap is created between the piston and the ring. Exhaust gas flows into the air bladder through this gap. The piston in the exhaust pipe will remain stationary under the restriction of the slide rod. After air intake is completed, the negative pressure inside the air bladder disappears, and the spring in the intake pipe will release its elastic force, causing the piston to return to its original position, thus restoring the device to a sealed state. Conversely, during exhaust, the piston in the intake pipe remains stationary, and a gap is created between the piston in the exhaust pipe and the ring. After exhaust is completed, the spring releases its elastic force, keeping the device sealed. This effectively prevents outside air from entering the sampling device, avoiding dilution of the exhaust gas sample, thus ensuring the accuracy of the proportions of each component in the exhaust gas, and thus ensuring the reliability of the final test results. Moreover, the elastic force of the spring ensures that the piston fits tightly against the ring, ensuring a good sealing effect. During air intake and exhaust, the operator can achieve effective control of the gas without complicated operations, improving sampling efficiency.

[0016] 2. By setting up a sampling mechanism, when it is necessary to sample the exhaust gas, the two support plates can be pressed by pressing the gasket to squeeze the airbag, and the original gas in the airbag will be discharged through the exhaust pipe. During this process, the telescopic rod and spring 2 are compressed. When spring 2 is compressed, it will undergo elastic deformation and generate elastic force. Due to the setting of the triangular locking block, when the triangular locking block passes through the rectangular groove during the pressing process, the spring piece will be squeezed backward. After the compression is completed, the triangular locking block will lock the device to prevent spring 2 from releasing its elastic force and drawing outside air back into the device. After completing the above operations, the device can be moved to the coke oven exhaust point, and then the spring piece can be pried forward to make the upper support plate disengage from the triangular locking block. Spring 2 releases its elastic force, causing the airbag to stretch and generate negative pressure, which will draw the exhaust gas cooled by the cooling pipe into the airbag. If it is necessary to discharge the exhaust gas, the two support plates can be pressed again to compress the airbag and collect it. The whole operation is relatively simple and can be completed by pressing the support plates and prying the spring piece. No complicated equipment and technology are required, making it convenient for operators to use. Meanwhile, the device can be moved to the coke oven exhaust for sampling, which has good flexibility and can adapt to different sampling location requirements. It also prevents outside air from being re-inhaled into the device when the spring is released, thus avoiding gas backflow problems during sampling to a certain extent and further ensuring the accuracy and reliability of sampling.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is a partial cross-sectional view of the present invention.

[0021] Figure 3 This is a partial exploded structural diagram of the sampling mechanism of this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the leak-proof mechanism of this utility model;

[0023] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Airbag; 101. Support plate; 102. Gasket; 103. Round hole; 2. Leakage prevention mechanism; 211. Transfer shell; 212. Air inlet pipe; 213. Air outlet pipe; 214. Filter plate; 215. Ring; 216. Cross support frame; 217. Piston; 218. Slide rod; 219. Spring one; 3. Sampling mechanism; 311. Telescopic rod; 312. Spring two; 313. Rectangular groove; 314. Spring piece; 315. Triangular locking block. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 As shown, this utility model is a coke oven exhaust gas sampling device, including an air bag 1. The air bag 1 is provided with an anti-leakage mechanism 2 and a sampling mechanism 3. The top and bottom of the air bag 1 are fixedly connected to support plates 101. Several gaskets 102 are fixedly connected to the side of the two support plates 101 that are far apart from each other. A round hole 103 is opened on the upper support plate 101.

[0028] The leak-proof mechanism 2 includes a transfer shell 211 connected to the top of the airbag 1. A circular hole 103 passes through the top of the transfer shell 211. An air inlet pipe 212 is connected to the left side of the transfer shell 211, and an air outlet pipe 213 is connected to the right side. A filter plate 214 is fixedly connected to the inner wall of the air inlet pipe 212. Circular rings 215 are fixedly connected to the inner walls of both the air inlet pipe 212 and the air outlet pipe 213. Cross-shaped support frames 216 are fixedly connected to the inner walls of both the air inlet pipe 212 and the air outlet pipe 213. Pistons 217 are slidably connected to the inner walls of both circular rings 215. Sliding rods 218 are fixedly connected to the right sides of both pistons 217. Two cross-shaped support frames 216 pass through the right sides of the two sliding rods 218 respectively. Each of the two slide rods 218 is slidably connected to two cross support frames 216. Springs 219 are fitted onto the outer walls of each slide rod 218. The left sides of the two springs 219 are fixedly connected to two pistons 217, and the right sides of the two springs 219 are fixedly connected to two cross support frames 216. By setting up the anti-leakage mechanism 2, the entry of outside air into the sampling device is effectively prevented, avoiding dilution of the waste gas sample and ensuring the accuracy of the proportions of each component in the waste gas, thereby ensuring the reliability of the final test results. Furthermore, the elasticity of the springs 219 ensures that the pistons 217 tightly fit against the rings 215, ensuring a good sealing effect. During the intake and exhaust processes, operators can effectively control the gas without complex operations, improving sampling efficiency.

[0029] The sampling mechanism 3 includes several telescopic rods 311 fixedly connected between two support plates 101. Each telescopic rod 311 has a spring 312 fitted onto its outer wall. The top and bottom of each spring 312 are fixedly connected to the two support plates 101. A rectangular groove 313 is formed on the upper support plate 101. A spring piece 314 is fixedly connected to the top of the lower spring 312, with its top penetrating the rectangular groove 313. A triangular locking block 315 is fixedly connected to the rear side of the spring piece 314. With the sampling mechanism 3, the entire operation is relatively simple, requiring only simple operations such as pressing the support plate 101 and bending the spring piece 314. No complex equipment or technology is needed, making it convenient for operators. Simultaneously, the device can be moved to the coke oven exhaust area for sampling, offering good flexibility and adapting to different sampling locations. It prevents outside air from being re-inhaled into the device when the spring 312 releases its elastic force, thus avoiding gas backflow problems during sampling and further ensuring the accuracy and reliability of the sampling.

[0030] A specific application of this embodiment is as follows: In use, first connect the air inlet pipe 212 to the cooling pipe, then press the two support plates 101 with the gasket 102 to squeeze the airbag 1, expelling the original gas in the airbag 1 through the air outlet pipe 213. During this process, the telescopic rod 311 and the second spring 312 are compressed. When the second spring 312 is compressed, it will undergo elastic deformation and generate elastic force. Due to the setting of the triangular locking block 315, during the pressing process, when the triangular locking block 315 passes through the rectangular groove 313, the spring piece 314 will be squeezed backward. After the compression is completed, the triangular locking block 315 will lock the device, preventing the second spring 312 from releasing its elastic force and drawing outside air back into the device. After completing the above operations, the device can be moved to the coke oven exhaust point, and then the spring piece 314 can be pried forward to make the upper support plate 101 disengage from the restriction of the triangular locking block 315. The second spring 312 releases its elastic force, stretching the airbag 1 and generating negative pressure, which cools the airbag 1. After the exhaust gas is drawn into the airbag 1, if it needs to be discharged, press the two support plates 101 again to compress the airbag 1 and collect it. During the intake, due to the negative pressure in the airbag 1, the piston 217 in the intake pipe 212 will move to the right, and compress the spring 219 on the slide rod 218, generating elastic force until a gap is formed between the piston 217 and the ring 215. The exhaust gas flows into the airbag 1 through this gap. The piston 217 in the exhaust pipe 213 will remain stationary under the restriction of the slide rod 218. After the intake is completed, the negative pressure in the airbag 1 disappears, and the spring 219 in the intake pipe 212 will release its elastic force, causing the piston 217 to return to its original position, thereby restoring the device to a sealed state. Conversely, during the exhaust, the piston 217 in the intake pipe 212 remains stationary, and a gap is formed between the piston 217 in the exhaust pipe 213 and the ring 215. After the exhaust is completed, the spring 219 releases its elastic force, keeping the device sealed.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coke oven exhaust gas sampling device characterized by: It includes an airbag (1), on which a leak prevention mechanism (2) and a sampling mechanism (3) are provided; The airbag (1) is fixedly connected to the top and bottom of a support plate (101). Several gaskets (102) are fixedly connected to the two support plates (101) on the side away from each other. A round hole (103) is opened on the upper support plate (101). The anti-leakage mechanism (2) includes a transfer shell (211) connected to the top of the airbag (1). The top of the transfer shell (211) is through the round hole (103). The sampling mechanism (3) includes several telescopic rods (311) fixedly connected between the two support plates (101).

2. A coke oven exhaust gas sampling device according to claim 1, characterized in that An air inlet pipe (212) is connected to the left side of the transfer shell (211), and an air outlet pipe (213) is connected to the right side of the transfer shell (211).

3. The coke oven exhaust gas sampling device according to claim 2, characterized in that, A filter plate (214) is fixedly connected to the inner wall of the air inlet pipe (212), and a ring (215) is fixedly connected to the inner wall of both the air inlet pipe (212) and the air outlet pipe (213).

4. A coke oven exhaust gas sampling device according to claim 3, characterized in that A cross support frame (216) is fixedly connected to the inner wall of the air inlet pipe (212) and the air outlet pipe (213), and a piston (217) is slidably connected to the inner wall of the two rings (215).

5. A coke oven exhaust gas sampling device according to claim 4, characterized in that Each of the two pistons (217) has a slide rod (218) fixedly connected to its right side. The right sides of the two slide rods (218) pass through the two cross support frames (216) respectively, and the two slide rods (218) are slidably connected to the two cross support frames (216) respectively.

6. The coke oven exhaust gas sampling device according to claim 5, characterized in that, Spring 1 (219) is fitted on the outer wall of each of the two slide rods (218). The left side of each of the two spring 1 (219) is fixedly connected to the two pistons (217), and the right side of each of the two spring 1 (219) is fixedly connected to the two cross support frames (216).

7. A coke oven exhaust gas sampling device according to claim 6, characterized in that A spring 2 (312) is fitted on the outer wall of each of the telescopic rods (311). The top and bottom of the spring 2 (312) are fixedly connected by two support plates (101). A rectangular groove (313) is opened on the upper support plate (101).

8. A coke oven exhaust gas sampling device according to claim 7, characterized in that The top of the lower spring (312) is fixedly connected to a spring piece (314), the top of the spring piece (314) passes through a rectangular groove (313), and a triangular locking block (315) is fixedly connected to the rear side of the spring piece (314).

Images