Sampling device of gas analyzer

Abstract

The utility model discloses a sampling device of a gas analyzer, which belongs to the technical field of gas sampling and comprises a gas sampling bag, one end of a connector seat is fixedly provided with an end tube communicated with an inner cavity of the connector seat, the other end of the connector seat is fixedly provided with a horn head, and the horn head is connected with the gas sampling bag communicated with the inner cavity of the connector seat. A filter plate is arranged in the connector base, and an adjusting and closing assembly is arranged on one side of the filter plate; according to the gas sampling bag, the filtering holes of the filtering plate are sealed and closed through the adjusting and closing assembly, so that sample gas is stored in the gas sampling bag in a sealed manner, the sampling of the sample gas is completed, the operation of manually clamping and closing the gas inlet of the gas sampling bag by using tools such as a clamp is omitted, the operation process is simplified, and the working efficiency is improved. The convenience of gas sampling operation is effectively improved, the risk of gas leakage caused by untight manual clamping is avoided, the integrity of the sample is ensured, and meanwhile, manual operation errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling technology, and in particular to a gas analyzer sampling device. Background Technology

[0002] A gas analyzer is a process analysis instrument based on gas sensor technology used to accurately measure the concentration of gas components. It is typically used to detect the composition and content of gases, and can detect various gas components in the environment, including oxygen, carbon dioxide, combustible gases, and toxic and harmful gases. Its detection principles encompass electrochemical reactions, infrared spectral absorption, semiconductor sensing, and laser scattering technologies, offering high detection accuracy from ppm to ppb and rapid response characteristics. When analyzing the external air environment with a gas analyzer, personnel need to sample the outside air. Currently, most methods use gas sampling bags to collect the sampled gas, which is then analyzed by the gas analyzer.

[0003] For example, Chinese Patent Publication No. 1 discloses a gas sampling bag, including a sealed gas bag and a metal interface. A metal cap is screwed onto the outer end of the metal interface, and the top of the metal cap has a through hole. A sealing plug is provided between the outer end face of the metal interface and the metal cap to seal the through hole at the top of the metal cap. The sealing plug has a convex shaft adapted to the inner diameter of the metal interface, and the lower end of the convex shaft on the sealing plug is a cone. The sealing plug is made of butyl rubber, and the gas bag is sealed with four layers of 12-wire aluminum-plated film. In this invention, the butyl rubber sealing plug is inserted into the metal interface, greatly improving the sealing effect. Due to the good unidirectional sealing properties of butyl rubber, when the needle is inserted into the butyl rubber, gas can enter the gas bag through the needle tube. When the gas in the gas bag reaches the rated volume, the needle is pulled out. At this time, the butyl rubber naturally seals the needle hole, and the gas can be safely stored in the gas bag.

[0004] When using the gas sampling bag described in the above application, it is necessary to insert a needle into the butyl colloid, and the gas enters the gas bag through the needle tube. It requires force to insert the needle, which is easy to make mistakes, waste gas samples, and easily prick the hand. The overall sampling operation is relatively laborious and inconvenient, and there is no filtration and purification of the sampled gas, which affects the purity of the sampled gas.

[0005] Therefore, it is necessary to provide a gas analyzer sampling device to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a gas analyzer sampling device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following solution to the above technical problems: a gas analyzer sampling device, comprising a gas sampling bag, wherein a cavity is provided inside the connector seat, an end tube communicating with the cavity inside the connector seat is fixed to one end of the connector seat, a horn head is fixed to the other end of the connector seat, a gas sampling bag communicating with the cavity inside the connector seat is connected to the horn head, a filter plate is provided inside the connector seat, and an adjustment and closing component for opening and closing the filter plate is provided on one side of the filter plate.

[0008] As a further embodiment of this utility model, the closing assembly includes a closing plate disposed on one side of the filter plate and arranged parallel to the filter plate, and the side of the closing plate is provided with a plurality of equally spaced slots a.

[0009] As a further embodiment of this utility model, a rubber pad is attached between the sealing plate and the filter plate, and the side of the rubber pad has a plurality of slots b corresponding to the slot a.

[0010] As a further embodiment of this utility model, an insertion port is provided on the side of the connector seat, and a connecting rod that slides through the insertion port is fixed on one end of the sealing plate, with a rubber sleeve provided between the connecting rod and the insertion port.

[0011] As a further embodiment of this utility model, an end plate is fixed on the end of the connecting rod away from the closing plate, and a rubber sleeve is fitted onto the surface of the end plate.

[0012] As a further embodiment of this utility model, the inner wall of the end tube is provided with an internal thread, and the port of the end tube is provided with a guide bevel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When the sample gas passes through the inside of the connector, the filter plate filters out solid particulate impurities such as dust in the sample gas, thereby purifying the sample gas, improving its purity, and ensuring the accuracy of subsequent gas detection data.

[0015] 2. After the sample gas inside the gas sampling bag is collected, the filter holes of the filter plate are sealed by the set adjustment and sealing component, so that the sample gas is sealed and stored inside the gas sampling bag, completing the sample gas sampling. This eliminates the need to manually clamp and seal the gas inlet of the gas sampling bag with tools such as clamps, simplifying the operation process, making the operation convenient and labor-saving, and effectively improving the convenience of gas sampling operation. It is especially suitable for frequent sampling or field operation scenarios, avoiding the risk of gas leakage caused by loose manual clamping, ensuring the integrity of the sample, and eliminating the need for easily lost tools, reducing the wear and tear of accessories and maintenance costs, and reducing human operation errors. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 ;

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 This is a partial structural diagram of the regulating and closing component of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Adjustment and closing assembly; 101. Sealing plate; 102. Groove a; 103. Rubber pad; 104. Groove b; 105. Connecting rod; 106. End plate; 107. Insert; 108. Rubber sleeve; 2. Gas sampling bag; 3. Connector seat; 4. End tube; 5. Guide slope; 6. Internal thread; 7. Horn head; 8. Filter plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-5This utility model provides a gas analyzer sampling device, including a gas sampling bag 2, a connector 3 with an internal cavity, an end tube 4 fixed to one end of the connector 3 communicating with the internal cavity, and a horn head 7 fixed to the other end of the connector 3. The gas sampling bag 2 communicating with the internal cavity of the connector 3 is connected to the horn head 7. A filter plate 8 is provided inside the connector 3, and a closing adjustment component 1 for opening and closing the filter plate 8 is provided on one side of the filter plate 8. In use, the end tube 4 is screwed onto the output of the gas sampling pump, the gas sampling pump draws sample gas and outputs it into the end tube 4, and then delivers it to the gas sampling bag 2 through the connector 3 for sample gas collection. As the sample gas passes through the inside of the connector 3, the filter plate 8 filters and removes dust and other solid particulate impurities in the sample gas, thereby purifying the sample gas and improving its purity. To ensure the accuracy of subsequent gas detection data, after the sample gas inside the gas sampling bag 2 is collected, the filter holes of the filter plate 8 are sealed by the set closing component 1, so that the sample gas is sealed and stored inside the gas sampling bag 2, completing the sample gas sampling. This eliminates the need to manually clamp and seal the air inlet of the gas sampling bag 2 with tools such as clamps, simplifying the operation process, making the operation convenient and labor-saving, and effectively improving the convenience of gas sampling operation. It is especially suitable for frequent sampling or field operation scenarios, avoiding the risk of gas leakage caused by loose manual clamping, ensuring the integrity of the sample, and eliminating the need for easily lost or misplaced tools, reducing the wear and tear of accessories and maintenance costs, while reducing human error. Then, the gas sampling bag 2 containing the sample gas is transferred to the gas analyzer, and the end tube 4 is screwed onto the input end of the gas analyzer, so that the sample gas can be analyzed by the gas analyzer.

[0026] Further as Figure 1 , Figure 4 and Figure 5As shown, it is worth noting that the regulating and closing assembly 1 includes a sealing plate 101 disposed on one side of the filter plate 8 and arranged parallel to the filter plate 8. Multiple equally spaced slots a102 are provided on the side of the sealing plate 101. A rubber pad 103 is fitted between the sealing plate 101 and the filter plate 8. Multiple slots b104 corresponding to the slots a102 are provided on the side of the rubber pad 103. When sample gas is introduced into the gas sampling bag 2 or when sample gas is output from the gas sampling bag 2, the slots a102 align with the filter holes on the filter plate 8, thereby opening the filter plate 8. At this time, sample gas can enter or exit the gas sampling bag 2. When the sample gas collection inside the gas sampling bag 2 is complete... Then, by moving and adjusting the sealing plate 101, the slot a102 and the filter holes on the filter plate 8 are completely misaligned, thereby sealing the filter holes of the filter plate 8 through the sealing plate 101 and the rubber pad 103. This allows the sample gas to be stored sealed inside the gas sampling bag 2, completing the sampling of the sample gas. This eliminates the need to manually clamp and seal the air inlet of the gas sampling bag 2 using tools such as clamps, simplifying the operation process, making the operation convenient and labor-saving, and effectively improving the convenience of gas sampling operations. It is especially suitable for frequent sampling or field operation scenarios, avoiding the risk of gas leakage caused by loose manual clamping, ensuring the integrity of the sample, and eliminating the need for easily lost or misplaced tools, reducing the wear and tear of accessories and maintenance costs, while also reducing human error.

[0027] Further as Figure 4 As shown, it is worth noting that the connector 3 has a socket 107 on its side, and a connecting rod 105 that slides through the socket 107 is fixed to one end of the sealing plate 101. A rubber sleeve 108 is provided between the connecting rod 105 and the socket 107. In actual operation, the connecting rod 105 can be used to easily pull and adjust the position of the sealing plate 101, which is convenient for operation. The rubber sleeve 108 ensures that the connecting rod 105 always has a certain degree of sealing when it moves. At the same time, the rubber sleeve 108 and the rubber pad 103 provide a certain degree of damping for the movement adjustment of the sealing plate 101, so that the sealing plate 101 can be automatically positioned and locked to a certain extent after the movement adjustment.

[0028] This solution has the following working process: When sample gas is filled into the gas sampling bag 2, the slot a102 and the filter holes on the filter plate 8 are aligned, thereby opening the filter plate 8. When the sample gas passes through the connector seat 3, the filter plate 8 filters and removes solid particulate impurities such as dust in the sample gas, thereby purifying the sample gas and improving its purity. The sample gas can then enter the gas sampling bag 2. After the sample gas inside the gas sampling bag 2 has been collected, the closing plate 101 is moved and adjusted so that the slot a102 and the filter holes on the filter plate 8 are completely misaligned. The closing plate 101 and the rubber pad 103 seal the filter holes of the filter plate 8, thereby sealing and storing the sample gas inside the gas sampling bag 2.

[0029] Further as Figure 5 As shown, it is worth noting that an end plate 106 is fixed on the end of the connecting rod 105 away from the closing plate 101, and a rubber sleeve is fitted on the surface of the end plate 106; in actual operation, the end plate 106 facilitates the pulling of the connecting rod 105 and the closing plate 101, making operation convenient.

[0030] Further as Figure 2 and Figure 3 As shown, it is worth noting that the inner wall of the end tube 4 is provided with an internal thread 6, and the port of the end tube 4 is provided with a guide bevel 5.

[0031] In summary: The filter plate 8 filters and removes solid particulate impurities such as dust from the sample gas, thereby purifying the sample gas, improving its purity, and ensuring the accuracy of subsequent gas detection data. After the sample gas is collected inside the gas sampling bag 2, the filter holes of the filter plate 8 are sealed by the sealing component 1, thus storing the sample gas sealed inside the gas sampling bag 2. This eliminates the need to manually clamp and seal the air inlet of the gas sampling bag 2, simplifying the operation process, making it convenient and labor-saving, and effectively improving the convenience of gas sampling operations. It is especially suitable for frequent sampling or field operations, avoiding the risk of gas leakage caused by loose manual clamping, ensuring sample integrity, and eliminating the need for easily lost or misused tools, reducing accessory wear and maintenance costs, and minimizing human error.

Claims

1. A gas analyzer sampling device comprising a gas sampling bag, characterized in that, The connector has an internal cavity. One end of the connector is fixed with an end tube that communicates with the internal cavity. The other end of the connector is fixed with a horn head. A gas sampling bag that communicates with the internal cavity is connected to the horn head. The connector has a filter plate inside. A closing adjustment component for opening and closing the filter plate is provided on one side of the filter plate.

2. The gas analyzer sampling device of claim 1, wherein, The closing assembly includes a closing plate disposed on one side of the filter plate and arranged parallel to the filter plate, and the side of the closing plate has a plurality of equally spaced slots a.

3. The gas analyzer sampling device according to claim 2, characterized in that, A rubber pad is attached between the sealing plate and the filter plate, and the side of the rubber pad has multiple slots b corresponding to slot a.

4. The gas analyzer sampling device of claim 2, wherein, The connector seat has an opening on its side, and a connecting rod that slides through the opening is fixed to one end of the sealing plate. A rubber sleeve is provided between the connecting rod and the opening.

5. A gas analyzer sampling device according to claim 4, wherein, An end plate is fixed to the end of the connecting rod away from the sealing plate, and a rubber sleeve is fitted onto the surface of the end plate.

6. The gas analyzer sampling device of claim 1, wherein, The inner wall of the end tube is provided with an internal thread, and the port of the end tube is provided with a guide bevel.

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