Thermal power plant gas detection sampling device

Abstract

The utility model discloses a thermal power plant gas detection sampling device, which relates to the field of gas sampling appliances, and comprises a sampling pump, a sampling bag, a bamboo joint type telescopic pipe and a filter, and the bamboo joint type telescopic pipe, the filter, the sampling pump and the sampling bag are sequentially communicated through guide pipes. A telescopic driving mechanism is arranged between the two telescopic ends of the bamboo joint type telescopic pipe; the telescopic driving mechanism comprises a guide assembly parallel to the bamboo joint type telescopic pipe, and the two ends of the guide assembly are fixedly connected with the two telescopic ends of the bamboo joint type telescopic pipe in a welded mode respectively. The telescopic driving mechanism is additionally arranged between the head end and the tail end of the sampling rod, the telescopic driving mechanism is used for driving the length of the sampling rod to be adjusted, the sampling rod does not need to be taken out of a sampling opening to be adjusted, the sampling efficiency is improved, meanwhile, the high-temperature scalding risk caused by manual adjustment is avoided, and the practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling appliances, in particular to a gas detection sampling device for a thermal power plant. Background Art

[0002] Gas detection and sampling devices in thermal power plants are key equipment for monitoring various harmful gases and pollutants within the plant. These devices typically feature high precision, stability, and reliability, enabling real-time and accurate detection and sampling of power plant emissions, providing crucial data support for environmental monitoring and pollution control. Currently, intrinsically safe, explosion-proof gas samplers are often used for gas sampling in thermal power plants. These samplers primarily consist of a sampling rod, filter, sampling pump, and sampling bag connected in series via a conduit.

[0003] This type of sampling rod is a bamboo-jointed telescopic structure designed for sampling at different positions. The sampling rod is adjusted by manual stretching. When sampling is required in a distant area, the sampler will take out the sampling rod and then manually extend the sampling rod. However, most existing sampling rods are made of metal copper. After high temperature conduction at the sampling port, the sampling rod itself will become hot. Subsequent manual touching of the rod body may cause burns, which is not conducive to the telescopic adjustment of the rod body.

[0004] Secondly, when extracting relatively high-temperature gas, the existing intrinsically safe explosion-proof gas sampler does not have a cooling function. The extracted high-temperature sample gas may cause damage to the sampling bag, making it impossible to preserve the sampled gas. Utility Model Content

[0005] The purpose of the present invention is to provide a gas detection and sampling device for a thermal power plant in order to solve the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas detection sampling device for a thermal power plant, comprising a sampling pump, a sampling bag, a bamboo-shaped telescopic tube and a filter, wherein the bamboo-shaped telescopic tube, the filter, the sampling pump and the sampling bag are sequentially connected through a conduit, and is characterized in that a telescopic drive mechanism is provided between the telescopic ends of the bamboo-shaped telescopic tube; wherein the telescopic drive mechanism comprises: a guide assembly arranged parallel to the bamboo-shaped telescopic tube, the two ends of the guide assembly being fixedly connected to the telescopic ends of the bamboo-shaped telescopic tube by welding, respectively, and during the extension or contraction process of the guide assembly, the bamboo-shaped telescopic tube can be driven to perform corresponding telescopic activities; and a drive assembly provided on the guide assembly, for driving the guide assembly itself to extend or contract.

[0007] As a further solution of the present invention: the guide assembly includes a fixed strip, a first movable strip and a second movable strip, and the fixed strip, the first movable strip and the second movable strip are slidably connected from top to bottom, one end of the fixed strip is fixedly connected to the tail end of the bamboo-type telescopic tube, one end of the second movable strip is fixedly connected to the extending end of the bamboo-type telescopic tube, and the first movable strip is located between the fixed strip and the second movable strip.

[0008] As a further solution of the present invention: the driving assembly includes a micro motor, a connecting column and a pulley, the micro motor is installed at one end of the fixed strip, a plurality of connecting columns are provided, and the plurality of connecting columns are respectively fixedly connected to one end on both side walls of the fixed strip, the first movable strip and the second movable strip, and a plurality of pulleys are provided, and the plurality of pulleys are dispersed at the other end on both side walls of the fixed strip and the first movable strip.

[0009] As a further solution of the present invention: the driving component also includes a steel wire rope, and two steel wire ropes are provided, wherein the two ends of one of the steel wire ropes are respectively fixed on the connecting column at one end of the fixed strip and the second movable strip, and the middle part of one of the steel wire ropes is wound around the pulley at one end of the first movable strip, and the two ends of the other steel wire rope are respectively fixedly connected to the output end of the micro motor and the connecting column at one end of the first movable strip, and the middle part of the other steel wire rope is wound around the pulley at one end of the fixed strip.

[0010] As a further solution of the present invention: a cooling assembly is provided between the bamboo-type telescopic tube and the filter, the cooling assembly and the bamboo-type telescopic tube are connected by a conduit, and the air inlet end of the wire rope is connected to the cooling assembly, which is used to cool the extracted gas so that the sampling bag is not damaged by high-temperature gas.

[0011] As a further solution of the present invention: the cooling assembly includes a box body, a liquid injection port, an air inlet, an exhaust port and a serpentine tube, the top of the box body is provided with a liquid injection port, one end of the box body is provided with an air inlet, and the other end of the box body is provided with an exhaust port, the interior of the box body is provided with a serpentine tube, and the two ends of the serpentine tube are respectively connected to the air inlet and the exhaust port.

[0012] As a further solution of the present invention: the interior of the box is filled with coolant.

[0013] As a further solution of the present invention: the serpentine tube is a copper metal tube.

[0014] As a further solution of the present invention: a sealing rubber ring is provided at the connection position between the bamboo-shaped telescopic tube, the filter, the sampling pump, the sampling bag and the catheter.

[0015] As a further solution of the present invention: a dust filter element that can be removed and replaced is provided in the filter.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model installs a telescopic drive mechanism between the head and tail ends of the sampling rod, and uses the telescopic drive mechanism to drive the length adjustment of the sampling rod. There is no need to take the sampling rod out of the sampling port for adjustment, which not only improves the sampling efficiency but also avoids the risk of high temperature burns caused by manual adjustment, thereby greatly improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the bamboo-jointed telescopic tube and telescopic drive mechanism of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the bamboo-jointed telescopic tube and the telescopic drive mechanism of the present invention from another perspective;

[0021] Figure 4 This is a schematic diagram of the cooling assembly structure of the present utility model.

[0022] In the figure: 1. Sampling pump; 2. Cooling assembly; 201. Box; 202. Liquid filling port; 203. Air inlet; 204. Exhaust port; 205. Serpentine tube; 3. Sampling bag; 4. Bamboo-type telescopic tube; 5. Telescopic drive mechanism; 501. Fixed strip; 502. First movable strip; 503. Second movable strip; 504. Micro motor; 505. Connecting column; 506. Pulley; 507. Wire rope; 6. Filter. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4In an embodiment of the utility model, a gas detection sampling device for a thermal power plant includes a sampling pump 1, a sampling bag 3, a bamboo-type telescopic tube 4 and a steel wire rope 507. The bamboo-type telescopic tube 4, the steel wire rope 507, the sampling pump 1 and the sampling bag 3 are sequentially connected through a conduit. A sealing rubber ring is provided at the connection position between the bamboo-type telescopic tube 4, the filter 6, the sampling pump 1 and the sampling bag 3 and the conduit.

[0025] A telescopic drive mechanism 5 is provided between the telescopic ends of the bamboo-type telescopic tube 4; wherein, the telescopic drive mechanism 5 includes a guide assembly arranged parallel to the bamboo-type telescopic tube 4, and the two ends of the guide assembly are respectively fixedly connected to the telescopic ends of the bamboo-type telescopic tube 4 by welding. During the extension or contraction process of the guide assembly, it can drive the bamboo-type telescopic tube 4 to perform corresponding telescopic activities; and a drive assembly provided on the guide assembly, which is used to drive the guide assembly itself to extend or contract.

[0026] In this embodiment, the sampling rod in the existing intrinsically safe explosion-proof gas sampler is a bamboo-jointed telescopic structure designed for sampling at different locations. The sampling rod is adjusted by manual stretching. When sampling is required in a remote area, the sampler will take out the sampling rod and then manually extend the sampling rod. However, most existing sampling rods are made of metal copper. After being subjected to high temperature conduction at the sampling port, the sampling rod itself will become hot. Subsequent manual touching of the rod body may cause burns, which is not conducive to the extension and retraction adjustment of the rod body. Therefore, this solution adds a telescopic drive mechanism 5 between the head and tail ends of the sampling rod 4. The telescopic drive mechanism 5 drives the length adjustment of the sampling rod 4, eliminating the need to take the sampling rod 4 out of the sampling port for adjustment. This not only improves sampling efficiency, but also avoids the risk of high-temperature burns caused by manual adjustment, greatly improving practicality.

[0027] Please refer to Figures 1 to 4 The guide assembly includes a fixed strip 501, a first movable strip 502, and a second movable strip 503. The fixed strip 501, the first movable strip 502, and the second movable strip 503 are slidably connected from top to bottom. One end of the fixed strip 501 is fixedly connected to the tail end of the bamboo-type telescopic tube 4, and one end of the second movable strip 503 is fixedly connected to the extending end of the bamboo-type telescopic tube 4. The first movable strip 502 is located between the fixed strip 501 and the second movable strip 503.

[0028] The driving assembly includes a micro motor 504, a connecting column 505 and a pulley 506. The micro motor 504 is installed at one end of the fixed strip 501. There are multiple connecting columns 505, and the multiple connecting columns 505 are respectively fixedly connected to one end of the two side walls of the fixed strip 501, the first movable strip 502 and the second movable strip 503. There are multiple pulleys 506, and the multiple pulleys 506 are dispersed at the other end of the two side walls of the fixed strip 501 and the first movable strip 502.

[0029] The drive assembly also includes two steel ropes 507, and the two ends of one steel rope 507 are respectively fixed to the connecting column 505 at one end of the fixed strip 501 and the second movable strip 503, and the middle part of one steel rope 507 is wound around the pulley 506 at one end of the first movable strip 502. The two ends of the other steel rope 507 are respectively fixedly connected to the output end of the micro motor 504 and the connecting column 505 at one end of the first movable strip 502, and the middle part of the other steel rope 507 is wound around the pulley 506 at one end of the fixed strip 501.

[0030] In this embodiment, the telescopic drive mechanism 5 is primarily composed of a guide assembly and a drive assembly. When gas needs to be extracted from the sampling port, the bamboo-shaped telescopic tube 4 is inserted into the sampling port, and the telescopic drive mechanism 5 drives the bamboo-shaped telescopic tube 4 to extend and retract, thereby extracting air from different positions. Specifically, when the length of the bamboo-shaped telescopic tube 4 needs to be adjusted, the micro-motor 504 first drives the output end to rotate and reel in a corresponding connected steel wire rope 507. The steel wire rope 507 then enters the pulley 506 to stretch the tail end of the first movable strip 502, forcing the first movable strip 502 to move relative to the fixed strip 501. Simultaneously, another steel wire rope 507, driven by the pulley 506 on the first movable strip 502, drives the second movable strip 503 to extend and move, thereby continuously lengthening the entire bamboo-shaped telescopic tube 4.

[0031] It should be noted that the sampling structure is sampled from near to far.

[0032] Please refer to Figures 1 to 4 A cooling assembly 2 is provided between the bamboo-type telescopic tube 4 and the steel wire rope 507. The cooling assembly 2 is connected to the bamboo-type telescopic tube 4 through a conduit. The air inlet end of the steel wire rope 507 is connected to the cooling assembly 2, which is used to cool the extracted gas so that the sampling bag 3 is not damaged by the high-temperature gas.

[0033] The cooling assembly 2 includes a box body 201, a liquid injection port 202, an air inlet 203, an exhaust port 204 and a serpentine tube 205. The liquid injection port 202 is provided on the top of the box body 201, the air inlet 203 is provided at one end of the box body 201, and the exhaust port 204 is provided at the other end of the box body 201. A serpentine tube 205 is provided inside the box body 201, and the two ends of the serpentine tube 205 are respectively connected to the air inlet 203 and the exhaust port 204.

[0034] The interior of the box 201 is filled with coolant; the serpentine tube 205 is a copper metal tube.

[0035] In this embodiment, when extracting relatively high-temperature gas, existing intrinsically safe explosion-proof gas samplers lack a cooling function. The extracted high-temperature sample gas could damage the sampling bag, making it impossible to preserve the sampled gas. Therefore, this solution incorporates a cooling assembly 2 between the sampling rod 4 and the filter 6. Hot gas enters the serpentine tube 205 within the housing 201 through the air inlet 203. Coolant within the housing 201 then exchanges heat with the serpentine tube 205, thereby lowering the temperature of the sampled gas and protecting the sampling bag from damage caused by the high temperature of the sampled gas.

[0036] The filter 6 is provided with a detachable and replaceable dust filter element. After a period of use, the dust filter element can be removed and replaced from the filter 6. The filter 6 in this solution uses an existing cylindrical filter, and the dust filter element installed inside it is also a mature existing technology. Its structure and principle are not described here.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas detection sampling device for a thermal power plant, comprising a sampling pump (1), a sampling bag (3), a bamboo-jointed telescopic tube (4) and a filter (6), wherein the bamboo-jointed telescopic tube (4), the filter (6), the sampling pump (1) and the sampling bag (3) are sequentially connected through a conduit, and is characterized in that: A telescopic drive mechanism (5) is provided between the telescopic ends of the bamboo-jointed telescopic tube (4); wherein the telescopic drive mechanism (5) comprises: a guide assembly provided in parallel with the bamboo-jointed telescopic tube (4), the two ends of the guide assembly being fixedly connected to the telescopic ends of the bamboo-jointed telescopic tube (4) by welding, and being capable of driving the bamboo-jointed telescopic tube (4) to perform corresponding telescopic activities during the extension or contraction of the guide assembly; and a drive assembly provided on the guide assembly, for driving the guide assembly itself to perform an extension or contraction action.

2. A gas detection sampling device for a thermal power plant according to claim 1, characterized in that: The guide assembly comprises a fixed strip (501), a first movable strip (502) and a second movable strip (503), wherein the fixed strip (501), the first movable strip (502) and the second movable strip (503) are connected in a sliding manner from top to bottom, one end of the fixed strip (501) is fixedly connected to the tail end of the bamboo-jointed telescopic tube (4), one end of the second movable strip (503) is fixedly connected to the extended end of the bamboo-jointed telescopic tube (4), and the first movable strip (502) is located between the fixed strip (501) and the second movable strip (503).

3. A gas detection sampling device for a thermal power plant according to claim 2, characterized in that: The driving component includes a micro motor (504), a connecting column (505) and a pulley (506), wherein the micro motor (504) is mounted on one end of the fixed strip (501), a plurality of connecting columns (505) are provided, and the plurality of connecting columns (505) are respectively fixedly connected to one end of the two side walls of the fixed strip (501), the first movable strip (502) and the second movable strip (503), and a plurality of pulleys (506) are provided, and the plurality of pulleys (506) are dispersed on the other end of the two side walls of the fixed strip (501) and the first movable strip (502).

4. A gas detection sampling device for a thermal power plant according to claim 3, characterized in that: The driving component also includes a steel wire rope (507), wherein two steel wire ropes (507) are provided, wherein the two ends of one of the steel wire ropes (507) are respectively fixed to the connecting column (505) at one end of the fixed strip (501) and the second movable strip (503), and the middle part of one of the steel wire ropes (507) is wound around the pulley (506) at one end of the first movable strip (502), and the two ends of the other steel wire rope (507) are respectively fixedly connected to the output end of the micro motor (504) and the connecting column (505) at one end of the first movable strip (502), and the middle part of the other steel wire rope (507) is wound around the pulley (506) at one end of the fixed strip (501).

5. A gas detection sampling device for a thermal power plant according to claim 4, characterized in that: A cooling assembly (2) is provided between the bamboo-jointed telescopic tube (4) and the steel wire rope. The cooling assembly (2) and the bamboo-jointed telescopic tube (4) are connected via a conduit. The air inlet end of the filter (6) is connected to the cooling assembly (2) for cooling the extracted gas so that the sampling bag (3) is not damaged by the high-temperature gas.

6. A gas detection sampling device for a thermal power plant according to claim 5, characterized in that: The cooling assembly (2) comprises a box body (201), a liquid injection port (202), an air inlet (203), an exhaust port (204) and a serpentine tube (205), wherein the top of the box body (201) is provided with a liquid injection port (202), one end of the box body (201) is provided with an air inlet (203), and the other end of the box body (201) is provided with an exhaust port (204), and the interior of the box body (201) is provided with a serpentine tube (205), and the two ends of the serpentine tube (205) are respectively connected to the air inlet (203) and the exhaust port (204).

7. A gas detection sampling device for a thermal power plant according to claim 6, characterized in that: The interior of the box (201) is filled with cooling liquid.

8. A gas detection sampling device for a thermal power plant according to claim 6, characterized in that: The serpentine tube (205) is a copper metal tube.

9. A gas detection sampling device for a thermal power plant according to claim 1, characterized in that: Sealing rubber rings are provided at the connection positions between the bamboo-jointed telescopic tube (4), the filter (6), the sampling pump (1), the sampling bag (3) and the catheter.

10. A gas detection sampling device for a thermal power plant according to claim 1, characterized in that: A detachable and replaceable dust filter element is provided in the filter (6).

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