An analyzer sampling device with a filter cartridge that is easily removed and replaced

Abstract

This invention discloses a convenient analyzer sampling device with a filter element that allows for easy disassembly and assembly, relating to the field of gas sampling technology. It includes a connecting pipe with a branch pipe fixedly connected to the top of one side wall of the connecting pipe. The connecting pipe and the branch pipe are internally connected, and a sampling mechanism is installed inside the branch pipe. The sampling mechanism includes a first hexagonal block, a sampling groove, a threaded block, a filter element ring, and a first perforation. This convenient analyzer sampling device allows for easy disassembly and assembly of the filter element by replacing the nitrogen blowing pipe with a sampling pipe, closing the control valve and opening the ball valve, rotating the first perforation to move the threaded column upwards, injecting gas through a second perforation, filtering it through the filter element ring, and then discharging it through the first perforation into the sampling pipe to obtain a gas sample. The entire device eliminates the need to remove flange bolts during sampling and maintenance soot blowing, and eliminates concerns about gas leakage due to poor gasket-flange alignment during reassembly, significantly reducing manpower, materials, and workload.

Description

Technical Field

[0001] This invention relates to the field of gas sampling technology, and in particular to a sampling device for an analyzer with a convenient filter element that can be easily disassembled and installed. Background Technology

[0002] In the blast furnace production process of steel enterprises, the raw coal gas produced contains a large amount of furnace dust, which seriously clogs the sampling pipeline of the gas analyzer used to analyze the composition of the coal gas. The current installation method of the sampling probe has poor automatic purging effect and fails to clean the coal dust, resulting in frequent replacement of the filter element. Before replacing the filter element, the most troublesome thing is that you have to remove the four screws and gaskets on the connecting flange to take out the filter element. After replacing the filter element, when installing it, you have to align the gaskets between the flanges and then use the flange to press the gaskets before you can tighten the screws. The process is extremely cumbersome. If the gaskets are installed crookedly, it will cause coal gas to leak out, which will pose a safety hazard to personnel and affect production. Summary of the Invention

[0003] The main objective of this invention is to provide an analyzer sampling device that allows for easy disassembly and assembly of filter cartridges, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A sampling device for an analyzer that allows for easy disassembly and assembly of filter cartridges includes a connecting tube, a branch tube fixedly connected to the top of one side wall of the connecting tube, the connecting tube and the branch tube being internally connected, and a sampling mechanism installed inside the branch tube.

[0006] The sampling mechanism includes a first hexagonal block, a sampling groove, a threaded block, a filter ring, and a first through hole. A shaft is fixedly installed at the center of the bottom surface of the first hexagonal block, and a threaded post is fixedly installed at the bottom of the shaft. The threaded block is fixedly installed at the bottom of the inner wall surface of the branch pipe, and the threaded post is threaded through the threaded block. A sampling groove adapted to the size of the sampling pipe is opened at the center of the top surface of the first hexagonal block, and a pin is inserted into the sampling groove. A filter ring is fixedly sleeved on the outer surface of the shaft.

[0007] Preferably, a second hexagonal block is fixedly installed on the top surface of the pin post.

[0008] Preferably, the first hexagonal block has a through hole inside, and the first through hole communicates with the inside of the sampling groove.

[0009] Preferably, a second through hole is provided between the top and bottom surfaces of one side wall of the threaded column.

[0010] Preferably, a sealing ring is fixedly fitted onto the outer surface of the top end of the threaded post.

[0011] Preferably, a sealing gasket is fixedly installed on the bottom surface of the sealing ring.

[0012] Preferably, the filter ring is adapted to the inner surface of the branch pipe.

[0013] Preferably, one end of the connecting pipe is provided with a first flange.

[0014] Preferably, a ball valve is installed on the connecting pipe between the branch pipe and the first flange.

[0015] Preferably, the remaining end of the connecting pipe is provided with a second flange.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By replacing the nitrogen blowing pipe with a sampling pipe, closing the control valve and opening the ball valve, rotating the first perforation to move the threaded column upward, the gas is injected through the second perforation, filtered by the filter core ring, and discharged through the first perforation to the sampling pipe, thus obtaining the gas sample. The entire device does not require the removal of flange bolts during sampling and maintenance soot blowing, and there is no need to worry about poor gasket-flange connection during reassembly, which could cause gas leakage, thus reducing a lot of manpower, materials and workload.

[0018] 2. By setting the first hexagonal block sampling groove threaded block filter element ring, the first perforated shaft, the second perforated threaded column, and the sealing ring to cooperate with each other, the occurrence of coal ash clogging the pipeline and filter element is greatly reduced, and the frequency of filter element replacement is reduced. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a sampling device for an analyzer that allows for easy disassembly and assembly of filter elements, according to the present invention.

[0020] Figure 2 This is a schematic diagram of the installation structure of the sampling mechanism of the analyzer sampling device for easy disassembly and assembly of filter elements according to the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the shaft of the sampling device for an analyzer with a convenient filter element disassembly and assembly according to the present invention.

[0022] Figure 4 This is a schematic diagram of the assembly structure of the sampling device connecting pipe and sampling mechanism of the analyzer with convenient filter element disassembly and assembly according to the present invention.

[0023] Figure 5 This is a schematic diagram of the connection structure of the sampling mechanism and the pin column of the sampling device of the analyzer for easy disassembly and assembly of filter elements according to the present invention.

[0024] In the diagram: 1. Connecting pipe; 2. Branch pipe; 3. Ball valve; 4. First flange; 5. Second flange; 6. Sampling mechanism; 61. First hexagonal block; 62. Sampling groove; 63. Threaded block; 64. Filter ring; 65. First perforation; 66. Shaft; 67. Second perforation; 68. Threaded post; 69. Sealing ring; 7. Second hexagonal block; 8. Pin post. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-5 As shown, an analyzer sampling device for easy disassembly and assembly of filter cartridges includes a connecting pipe 1, a branch pipe 2 fixedly connected to the top of one side wall of the connecting pipe 1, the connecting pipe 1 and the branch pipe 2 are internally connected, and a sampling mechanism 6 is installed inside the branch pipe 2.

[0027] The sampling mechanism 6 includes a first hexagonal block 61, a sampling groove 62, a threaded block 63, a filter ring 64, and a first through hole 65. A shaft 66 is fixedly installed in the middle of the bottom surface of the first hexagonal block 61, and a threaded post 68 is fixedly installed in the bottom of the shaft 66. The threaded block 63 is fixedly installed in the bottom of the inner wall surface of the branch pipe 2, and the threaded post 68 is threaded through the threaded block 63. A sampling groove 62 adapted to the size of the sampling pipe is opened in the middle of the top surface of the first hexagonal block 61. A pin post 8 is inserted into the sampling groove 62. A filter ring 64 is fixedly sleeved on the outer surface of the shaft 66.

[0028] In this embodiment, a second hexagonal block 7 is fixedly installed on the top surface of the pin 8. The second hexagonal block 7 is fixedly installed on the top surface of the pin 8 to facilitate the removal of the pin 8 by external tools.

[0029] In this embodiment, a first through hole 65 is provided through the interior of the first hexagonal block 61, and the first through hole 65 is connected to the interior of the sampling groove 62. By providing a first through hole 65 through the interior of the first hexagonal block 61, and the first through hole 65 being connected to the interior of the sampling groove 62, it is convenient for gas to flow.

[0030] In this embodiment, a second through hole 67 is provided between the top and bottom surfaces of one side wall of the threaded post 68 to facilitate the flow of gas.

[0031] In this embodiment, a sealing ring 69 is fixedly sleeved on the outer surface of the top end of the threaded post 68.

[0032] In this embodiment, a sealing gasket is fixedly installed on the bottom surface of the sealing ring 69. By fixing the sealing ring 69 and the sealing gasket on the outer surface of the top end of the threaded post 68, the seal can be maintained when not in use.

[0033] In this embodiment, the filter ring 64 is adapted to the inner surface of the branch pipe 2, and the sampling groove 62 is adapted to the sampling pipe and the nitrogen blowing pipe, which facilitates sampling and coal ash blowing operations.

[0034] In this embodiment, a first flange 4 is provided at one end of the connecting pipe 1. A flange that is compatible with the first flange 4 is welded onto the gas pipeline to connect the first flange 4 to the gas pipeline.

[0035] In this embodiment, a ball valve 3 is installed on the connecting pipe 1 between the branch pipe 2 and the first flange 4. The ball valve 3 is installed to facilitate the control of the switch.

[0036] In this embodiment, the remaining end of the connecting pipe 1 is provided with a second flange 5, which is externally connected to a high-pressure nitrogen source and a control valve, ensuring a stable connection.

[0037] Working Principle: All electrical components in this invention are externally connected to a power supply and control switch. A flange compatible with the first flange 4 is welded onto the gas pipeline, connecting the first flange 4 to the gas pipeline. A high-pressure nitrogen source and control valve are externally connected to the second flange 5. The sampling tank 62 is compatible with the sampling tube and the nitrogen blowing pipe. When purging is required, the pin 8 is inserted, the second flange 5 is connected to the high-pressure gas source, and the ball valve 3 is opened. Under the action of nitrogen, the coal ash in the connecting pipe 1 will be blown back into the main gas pipeline, preventing pipeline blockage. During sampling, the nitrogen blowing pipe is replaced with the sampling pipe, the control valve is closed, the ball valve 3 is opened, and the rotation... The first perforation 65 causes the threaded post 68 to move upward, allowing gas to be injected through the second perforation 67. After being filtered by the filter core ring 64, the gas is discharged through the first perforation 65 to the sampling tube, where a gas sample can be taken out. By venting, the sampling tube can be replaced with a nitrogen inlet tube, and nitrogen can be blown out in reverse to remove coal ash from the second perforation 67. During sampling and maintenance ash blowing, the flange bolts do not need to be removed. During reassembly, there is no need to worry about poor connection between the gasket and the flange, which could cause gas leakage. This reduces a lot of manpower, materials, and workload. The device greatly reduces the occurrence of coal ash clogging the pipeline and filter element, and reduces the frequency of filter element replacement.

[0038] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve any improvement to the software and methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for an analyzer with convenient filter element disassembly and assembly, comprising a connecting tube (1), characterized in that: A branch pipe (2) is fixedly connected to the top of one side wall of the connecting pipe (1). The connecting pipe (1) and the branch pipe (2) are internally connected. A sampling mechanism (6) is installed inside the branch pipe (2). The sampling mechanism (6) includes a first hexagonal block (61), a sampling groove (62), a threaded block (63), a filter ring (64), and a first perforation (65). A shaft (66) is fixedly installed in the middle of the bottom surface of the first hexagonal block (61). A threaded column (68) is fixedly installed at the bottom of the shaft (66). The threaded block (63) is fixedly installed at the bottom of the inner wall surface of the branch pipe (2). The threaded column (68) is threaded through the threaded block (63). A sampling groove (62) adapted to the size of the sampling tube is opened in the middle of the top surface of the first hexagonal block (61). A pin (8) is inserted into the sampling groove (62). A filter ring (64) is fixedly sleeved on the outer surface of the shaft (66). The first hexagonal block (61) has a through hole (65) inside, and the first through hole (65) is connected to the inside of the sampling slot (62); A second through hole (67) is provided between the top and bottom surfaces of one side wall of the threaded post (68).

2. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 1, characterized in that: The top surface of the pin (8) is fixedly mounted with a second hexagonal block (7).

3. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 1, characterized in that: A sealing ring (69) is fixedly sleeved on the outer surface of the top end of the threaded post (68).

4. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 3, characterized in that: A sealing gasket is fixedly installed on the bottom surface of the sealing ring (69).

5. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 1, characterized in that: The filter element ring (64) is adapted to the inner surface of the branch pipe (2).

6. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 1, characterized in that: One end of the connecting pipe (1) is provided with a first flange (4).

7. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 6, characterized in that: A ball valve (3) is installed on the connecting pipe (1) between the branch pipe (2) and the first flange (4).

8. The analyzer sampling device for convenient filter element disassembly and assembly according to claim 1, characterized in that: The remaining end of the connecting pipe (1) is provided with a second flange (5).

Images