Sample gas pretreatment device

Abstract

The utility model relates to the technical field of gas processing, and discloses a sample gas pretreatment device which comprises a treatment cylinder and a partition plate, the partition plate is fixedly arranged in the treatment cylinder, a drying assembly is fixedly arranged in the treatment cylinder, the top of the drying assembly is fixedly connected with a bent pipe, and the bent pipe penetrates through the treatment cylinder and extends out of the treatment cylinder. A reset spring is fixedly connected into the bent pipe, a piston is fixedly connected to the end, away from the bent pipe, of the reset spring and slidably connected with the inner wall of the bent pipe, an air storage tank is detachably connected to the top of the treatment barrel, a connecting pipe is fixedly connected to one end of the air storage tank, and a second one-way valve is fixedly arranged in the connecting pipe. According to the utility model, the detachable gas storage tank is arranged, gas after pretreatment is collected in the gas storage tank through mutual cooperation of the connecting pipe and the bent pipe, and when the gas storage tank is filled with gas, the gas storage tank can be timely detached out and sent to a detection position for detection.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing equipment, in particular to a sample gas pretreatment device. Background Art

[0002] Sample gas pretreatment refers to the pretreatment of gas samples to remove moisture, particulate matter, interfering substances, etc. Sample gas pretreatment is a very important link in gas analysis. It can improve the accuracy and reliability of analysis and avoid interference and errors.

[0003] At present, most of the gas samples are taken in an external environment, and many reaction processes have the phenomenon that the gas phase fluid contains fine dust particles or moisture. Direct analysis will cause blockage and damage to the analysis device and damage to the sample gas analyzer. Therefore, the sample gas needs to be pretreated. However, some current sample gas pretreatment devices do not separate the processed sample gas from the pretreatment device, so it cannot be sent for detection in time, which reduces the use efficiency of the pretreatment device. For this reason, we propose a sample gas pretreatment device to well solve the above-mentioned drawbacks. Utility Model Content

[0004] The purpose of the utility model is to provide a sample gas pretreatment device by matching a connecting pipe and a bent pipe, thereby solving the problem mentioned in the background technology that the sample gas after pretreatment is not separated from the device.

[0005] In order to solve the above problems, the utility model provides a technical solution:

[0006] A sample gas pretreatment device comprises a treatment cylinder and a partition, wherein the partition is fixedly provided inside the treatment cylinder, a drying component is fixedly provided inside the treatment cylinder, a bent pipe is fixedly connected to the top of the drying component, the bent pipe passes through the treatment cylinder and extends to the outside of the treatment cylinder, a return spring is fixedly connected to the inside of the bent pipe, an end of the return spring away from the bent pipe is fixedly connected to a piston, the piston is slidably connected to the inner wall of the bent pipe, an air storage tank is detachably connected to the top of the treatment cylinder, one end of the air storage tank is fixedly connected to a connecting pipe, a second one-way valve is fixedly provided inside the connecting pipe, an end of the connecting pipe away from the air storage tank extends into the interior of the bent pipe and contacts the piston, and a through hole is opened on the outside of one end of the connecting pipe close to the piston.

[0007] As a preferred solution of the utility model, a pull-out basket is detachably provided inside the processing cylinder, a plurality of grids are provided inside the pull-out basket, a plurality of filters are detachably provided inside the plurality of grids, an air inlet pipe is fixedly provided outside the processing cylinder, and an air inlet hole matching the air inlet pipe is opened on the surface of the pull-out basket.

[0008] As a preferred solution of the utility model, a sealing cover is provided on the top of the treatment cylinder, a fan is installed on the bottom of the sealing cover, and a first one-way valve is fixedly installed on one end of the partition away from the sealing cover.

[0009] As a preferred solution of the utility model, the drying component includes a drying cylinder and a fan, the drying cylinder is fixedly connected to the processing cylinder, the fan is fixedly installed inside the processing cylinder, the output end of the fan is fixedly connected to a heating box, and the end of the heating box away from the fan is fixedly connected to a ventilation pipe.

[0010] As a preferred solution of the utility model, a plurality of brackets are fixedly installed inside the drying cylinder, a desiccant is placed on the top of each of the brackets, a plurality of transverse tubes are fixedly provided below each of the desiccant, a plurality of ventilation nozzles are fixedly provided outside each of the transverse tubes, and one end of each of the transverse tubes extends to the outside of the drying cylinder and is fixedly connected to the ventilation pipe.

[0011] As a preferred solution of the utility model, a control panel is fixedly installed on the outside of the processing cylinder, and the fan, blower and heating box are all electrically connected to the control panel.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a detachable gas storage tank, which collects the pre-treated gas in the gas storage tank through the cooperation of the connecting pipe and the elbow. When the gas storage tank is full of gas, it can be disassembled and sent to the detection place for detection, which is convenient for the storage and management of the pre-treated sample gas and conducive to the timely detection of the pre-treated sample gas;

[0014] 2. This utility model is equipped with a multi-layer filter screen, which can effectively filter impurities in the sample gas to be tested, improve the cleanliness of the sample gas, and improve the accuracy of the sample gas detection;

[0015] 3. The utility model is provided with a drying component, which dries the internal desiccant through a fan and a heating box channel, thereby maintaining the continuous adsorption capacity of the desiccant and facilitating the continuous adsorption of the desiccant. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0019] Figure 3 yes Figure 2 The corresponding figure at A is enlarged;

[0020] Figure 4 yes Figure 2 The corresponding figure at point B is enlarged.

[0021] In the figure: 1. treatment cylinder; 101. partition; 2. pull-out basket; 201. filter screen; 202. grid frame; 203. air inlet pipe; 204. air inlet hole; 3. sealing cover; 4. fan; 5. first one-way valve; 6. drying assembly; 601. drying cylinder; 602. fan; 603. heating box; 604. ventilation pipe; 605. bracket; 606. ventilation nozzle; 607. horizontal pipe; 608. desiccant; 7. elbow; 8. reset spring; 9. piston; 10. air storage tank; 11. connecting pipe; 12. second one-way valve; 13. through hole; 14. control panel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Example

[0024] See also Figure 1 - Figure 4 The utility model provides a technical solution: a sample gas pretreatment device, including a treatment cylinder 1 and a partition 101, the partition 101 can separate the filtering and drying areas, the treatment cylinder 1 is cylindrical, the interior of the treatment cylinder 1 is fixedly provided with a partition 101, the interior of the treatment cylinder 1 is fixedly provided with a drying assembly 6, the top of the drying assembly 6 is fixedly connected with a bend pipe 7, the bend pipe 7 passes through the treatment cylinder 1 and extends to the outside of the treatment cylinder 1, the interior of the bend pipe 7 is fixedly connected with a return spring 8, the end of the return spring 8 away from the bend pipe 7 is fixedly connected with a piston 9, the piston 9 is slidably connected to the inner wall of the bend pipe 7, the top of the treatment cylinder 1 is detachably connected with a gas storage tank 10, the gas storage tank 10 is The aluminum gas tank is light in weight and low in cost. It has good corrosion resistance and can be easily processed into different shapes. One end of the gas tank 10 is fixedly connected to a connecting pipe 11. The reset spring 8 can drive the piston 9 to reset when the connecting pipe 11 is away from the elbow 7, thereby ensuring the sealing of the elbow 7. A second one-way valve 12 is fixedly arranged inside the connecting pipe 11. The end of the connecting pipe 11 away from the gas tank 10 extends into the interior of the elbow 7 and contacts the piston 9. A through hole 13 is opened on the outside of the end of the connecting pipe 11 close to the piston 9. When the elbow 7 contacts the connecting pipe 11, the pretreated sample gas can enter the interior of the gas tank 10 through the through hole 13.

[0025] Furthermore, a pull-out basket 2 is detachably provided inside the processing tube 1, and a plurality of grids 202 are provided inside the pull-out basket 2. A plurality of filter screens 201 are detachably provided inside the plurality of grids 202. The first layer of the filter screen 201 is made of stainless steel, and the lower layer is made of sponge. The stainless steel material can be processed into meshes of different sizes according to demand, and impurities on the surface can be preliminarily filtered. The subsequent sample gas is filtered through the sponge, which can effectively filter out finer impurities, which is beneficial to improving the accuracy of sample gas analysis. An air inlet pipe 203 is fixedly provided on the outside of the processing tube 1, and an air inlet hole 204 compatible with the air inlet pipe 203 is opened on the surface of the pull-out basket 2. The sample gas enters the filter screen 201 above through the air inlet pipe 203 and the air inlet hole 204.

[0026] Furthermore, a sealing cover 3 is provided on the top of the processing cylinder 1, and the sealing cover 3 can ensure the sealing of the processing cylinder 1. A fan 4 is installed at the bottom of the sealing cover 3. A first one-way valve 5 is fixedly installed at one end of the partition 101 away from the sealing cover 3. The first one-way valve 5 can ensure that the gas can only enter but not exit. In preparation for subsequent processes, the sealing cover 3 can be opened, the pull basket 2 can be pulled out to replace the filter 201, and the fan 4 provides pressure for the sample gas so that it enters the next process after filtration.

[0027] Furthermore, the drying assembly 6 includes a drying cylinder 601 and a fan 602. The drying cylinder 601 is fixedly connected to the processing cylinder 1. The fan 602 is fixedly installed inside the processing cylinder 1. The output end of the fan 602 is fixedly connected to a heating box 603. The end of the heating box 603 away from the fan 602 is fixedly connected to a ventilation pipe 604. A plurality of brackets 605 are fixedly installed inside the drying cylinder 601. The brackets 605 are transparent to ensure that the sample gas passes through. Desiccants 608 are placed on the tops of the plurality of brackets 605. A transverse tube 607 is fixedly provided below the plurality of desiccants 608. The plurality of transverse tubes 607 A plurality of ventilation nozzles 606 are fixedly provided on the outside of the drying cylinder 601, one end of a plurality of transverse tubes 607 are extended to the outside of the drying cylinder 601 and are fixedly connected to the ventilation pipe 604, the heating box 603 can heat the wind delivered by the fan 602, which is beneficial to drying the desiccant 608, keeping the desiccant 608 dry, and allowing the desiccant 608 to be recycled, and a control panel 14 is fixedly installed on the outside of the processing cylinder 1, the fan 4, the fan 602 and the heating box 603 are electrically connected to the control panel 14, and the function of the sample gas pretreatment device can be quickly selected through the control panel 14, which is convenient for users to operate.

[0028] In summary:

[0029] When the sample gas needs to be pretreated, first insert the connecting pipe 11 at the top of the gas storage tank 10 into the inside of the bent pipe 7. At this time, the reset spring 8 drives the piston 9 to compress backwards. When the connecting pipe 11 is in close contact with the bent pipe 7, the connection between the gas storage tank 10 and the bent pipe 7 is completed. Then, the sample gas to be treated is transported to the inside of the treatment cylinder 1 through the air inlet pipe 203. Then, the fan 4 is started to transport the sample gas through the multi-layer filter 201 to the bottom of the treatment cylinder 1, and then enters the inside of the drying cylinder 601 in the drying component 6 through the first one-way valve 5. The sample gas that has filtered out impurities passes through the multi-layer desiccant 608 and enters the bent pipe 7. At this time, the sample gas passes through the through hole 13 and the second one-way valve 12 and enters the inside of the gas storage tank 10. When the sample gas in the gas storage tank 10 is full, the connecting tube 11 can be twisted to disengage it from the bent pipe 7, and the reset spring 8 will automatically drive the piston 9 forward to close the outlet of the bent pipe 7. When the filter 201 inside the processing tube 1 is full of impurities, the sealing cover 3 can be opened to pull out the filter frame 202, and the filter 201 inside the filter frame 202 is replaced and then placed inside the processing tube 1, and then the sealing cover 3 can be closed. When the desiccant 608 in the drying component 6 is saturated with adsorption, the fan 602 can be started through the control panel 14, and then the hot air is heated by the heating box 603 and blown into the ventilation pipe 604, and then the desiccant 608 is dried through the ventilation nozzle 606.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample gas pretreatment device, comprising a treatment cylinder (1) and a partition (101), It is characterized in that A partition (101) is fixedly provided inside the treatment cylinder (1), a drying assembly (6) is fixedly provided inside the treatment cylinder (1), a curved pipe (7) is fixedly connected to the top of the drying assembly (6), the curved pipe (7) passes through the treatment cylinder (1) and extends to the outside of the treatment cylinder (1), a return spring (8) is fixedly connected to the inside of the curved pipe (7), the end of the return spring (8) away from the curved pipe (7) is fixedly connected to a piston (9), the piston (9) is slidably connected to the inner wall of the curved pipe (7), an air storage tank (10) is detachably connected to the top of the treatment cylinder (1), one end of the air storage tank (10) is fixedly connected to a connecting pipe (11), a second one-way valve (12) is fixedly provided inside the connecting pipe (11), the end of the connecting pipe (11) away from the air storage tank (10) extends into the interior of the curved pipe (7) and contacts the piston (9), and a through hole (13) is provided on the outside of the end of the connecting pipe (11) close to the piston (9).

2. A sample gas pretreatment device according to claim 1, It is characterized in that A pull-out basket (2) is detachably provided inside the treatment cylinder (1), a plurality of mesh frames (202) are provided inside the pull-out basket (2), a plurality of filter screens (201) are detachably provided inside the plurality of mesh frames (202), an air intake pipe (203) is fixedly provided outside the treatment cylinder (1), and an air intake hole (204) matching the air intake pipe (203) is provided on the surface of the pull-out basket (2).

3. A sample gas pretreatment device according to claim 1, It is characterized in that A sealing cover (3) is provided on the top of the treatment cylinder (1), a fan (4) is installed on the bottom of the sealing cover (3), and a first one-way valve (5) is fixedly installed on one end of the partition (101) away from the sealing cover (3).

4. A sample gas pretreatment device according to claim 3, It is characterized in that The drying component (6) comprises a drying cylinder (601) and a fan (602), wherein the drying cylinder (601) is fixedly connected to the treatment cylinder (1), and the fan (602) is fixedly installed inside the treatment cylinder (1), and the output end of the fan (602) is fixedly connected to a heating box (603), and the end of the heating box (603) away from the fan (602) is fixedly connected to a ventilation pipe (604).

5. A sample gas pretreatment device according to claim 4, It is characterized in that A plurality of brackets (605) are fixedly installed inside the drying cylinder (601), a desiccant (608) is placed on the top of each of the brackets (605), a transverse tube (607) is fixedly installed below each of the desiccant (608), a plurality of ventilation nozzles (606) are fixedly installed outside each of the transverse tubes (607), and one end of each of the transverse tubes (607) extends to the outside of the drying cylinder (601) and is fixedly connected to the ventilation pipe (604).

6. A sample gas pretreatment device according to claim 4, It is characterized in that A control panel (14) is fixedly mounted on the outside of the treatment cylinder (1), and the fan (4), blower (602) and heating box (603) are all electrically connected to the control panel (14).

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