Rapid pretreatment device for methane sample

Abstract

The utility model discloses a rapid pretreatment device for methane samples, which relates to the technical field of pretreatment devices and comprises an extraction valve, the lower end of the extraction valve is communicated with a pretreatment tank used for collecting methane gas, a filter block used for filtering extracted gas is arranged in the extraction valve, and the extraction valve exchanges heat with air through radiating fins. The water inlet in the water conveying seat is communicated with an external circulating pump, the external circulating pump is communicated with a refrigerator to inject a refrigerant, and then the refrigerant at the water outlet is pumped out through the external circulating pump, so that the water circulation condensation work is completed, and the temperature of the pretreatment tank can be quickly reduced; a refrigerant enters the adsorption block through the pretreatment tank to be absorbed, so that the moisture content in the pretreatment tank is effectively reduced, the storage difficulty is reduced, the adsorption block is dried through the water pumping seat, and the adsorption performance of the adsorption block is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pretreatment device technical field, specifically a kind of methane sample rapid pretreatment device. BACKGROUND

[0002] Methane and other gas samples are pretreated to ensure the accuracy and reliability of gas analysis. Pretreatment usually requires filtering, condensation and dehydration, etc. By removing solid particles and moisture, the purity of the gas sample is improved. According to the characteristics of the gas, desulfurization and catalytic conversion may be required. The pretreated gas sample has less impurities, effectively extends the storage time, and improves the detection quality.

[0003] For example, the patent document with publication number CN219473415U describes a gas collection bottle for a gas detector. Through the cooperation between the components, the collection bottle body is protected, the practicability of the device is improved, and the device has the advantages of double sealing of the gas inlet pipe and the gas outlet pipe, good sealing, and convenient use and storage of the gas in the bottle. The existing gas collection bottle has the problems of simple structure, poor sealing of the bottle opening by the plug, inability to double seal the bottle opening, and difficulty in gas collection and storage, which reduces the applicability of the gas collection bottle. This gas collection bottle for a gas detector is not convenient for collecting gas samples in extreme environments, and cannot timely pretreat the gas samples, resulting in short gas storage time and high impurity content.

[0004] Based on this, a methane sample rapid pretreatment device is provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a methane sample rapid pretreatment device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0007] A methane sample rapid pretreatment device includes a gas extraction valve, a pretreatment tank for collecting methane gas connected to the lower end of the gas extraction valve, a filter block inside the gas extraction valve for filtering extracted gas, a gas delivery pipe connected to the upper end of the pretreatment tank, a condensation mechanism on the surface of the pretreatment tank for condensing and dehydrating methane gas, and a storage mechanism for storing gas samples connected to the pretreatment tank through the gas delivery pipe.

[0008] Based on the above technical solutions, the utility model also provides the following optional technical solutions:

[0009] In an alternative: the condensing mechanism includes heat dissipation fins, the surface of the pretreatment tank is uniformly provided with a plurality of heat dissipation fins, and the heat dissipation fins are provided with a water cooling assembly for water cooling of the heat dissipation fins.

[0010] In an alternative: the water cooling assembly includes heat dissipation water, the surface of the heat dissipation fins is provided with two heat dissipation water pipes, the two heat dissipation water pipes are communicated with a water conveying seat in the middle, the water conveying seat is provided with a water inlet and a water outlet, and the lower end of the pretreatment tank 102 is provided with a dehydration element for dehydration of the condensed gas.

[0011] In an alternative: the dehydration element includes an adsorption block, the adsorption block is arranged at the lower end of the pretreatment tank, and the lower end of the adsorption block is provided with a water pumping seat for pumping off the condensed water.

[0012] In an alternative: the storage mechanism includes a gas storage tank, the pretreatment tank is communicated with the gas storage tank through a gas conveying pipe, and the inside of the gas storage tank is provided with a protective net.

[0013] In an alternative: the air pumping valve is provided with a sealing plug.

[0014] In an alternative: the inside of the adsorption block is filled with water-absorbing cotton.

[0015] In an alternative: the inside of the water pumping seat is provided with a one-way valve.

[0016] Compared with the prior art, the utility model has the advantages of the following:

[0017] 1、The utility model discloses a heat dissipation fin and air heat exchange, and the temperature of the pretreatment tank is reduced to condense the gas sample, the water inlet of the water conveying seat is communicated with the external circulating pump, the external circulating pump is communicated with the refrigerating machine to inject the refrigerant, and the external circulating pump is used to pump out the refrigerant of the water outlet, so that the water circulation condensation work is completed, the temperature of the pretreatment tank can be quickly reduced, and the gas sample is condensed and dehydrated conveniently.

[0018] 2、The utility model discloses that the condensed water enters the inside of the adsorption block through the pretreatment tank, the water content in the pretreatment tank is effectively reduced, the storage difficulty is reduced, the adsorption block is dried through the water pumping seat, the adsorption performance of the adsorption block is maintained, the condensed water gathered in the adsorption block is pumped off, and the inside of the pretreatment tank is kept dry. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model.

[0020] Figure 2 It is a structural schematic view of the filter block of the utility model.

[0021] Figure 3The structure diagram of the heat dissipation fin of the utility model.

[0022] Figure 4 The structure diagram of the gas storage cylinder of the utility model.

[0023] Mark annotation: 101. air extraction valve, 102. condensing tank, 103. filter block, 104. gas conveying pipe, 105. gas storage cylinder, 201. heat dissipation fin, 202. heat dissipation water pipe, 203. water conveying seat, 204. adsorption block, 205. water extraction seat. DETAILED DESCRIPTION

[0024] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is combined with the drawing and example, and the utility model is further detailed.

[0025] In one embodiment, as shown in Figures 1-3 A methane sample rapid pretreatment device, including air extraction valve 101, the lower end of the air extraction valve 101 is communicated with the pretreatment tank 102 for collecting methane gas, the air extraction valve 101 is internally provided with filter block 103 for filtering extracted gas, the upper end of the pretreatment tank 102 is communicated with gas conveying pipe 104, the surface of the pretreatment tank 102 is provided with condensing mechanism for condensing and dehydrating methane gas, the pretreatment tank 102 is communicated with storage mechanism for storing gas sample through gas conveying pipe 104, gas sample is collected by air extraction through air extraction valve 101, gas sample is filtered by filter block 103 provided in the air extraction valve 101, preventing particulate matter from entering the pretreatment tank 102, gas sample is dehydrated by the pretreatment tank 102, and the dehydrated gas sample is transported through gas conveying pipe 104;

[0026] In one embodiment, as shown in Figure 2 The condensing mechanism includes heat dissipation fin 201, the surface of the pretreatment tank 102 is uniformly provided with a plurality of heat dissipation fins 201, the heat dissipation fin 201 is provided with water cooling assembly for water cooling heat dissipation fin 201, heat exchange is carried out between heat dissipation fin 201 and air, so that the temperature of the pretreatment tank 102 is reduced, the stability of the gas in the pretreatment tank 102 is maintained, and the gas temperature is reduced.

[0027] In one embodiment, as shown in Figure 2 And Figure 3As shown, the water cooling assembly includes a heat dissipation water pipe 202, the surface of the heat dissipation fin 201 is provided with two heat dissipation water pipes 202, two heat dissipation water pipes 202 are communicated with a water delivery seat 203 in the middle, the water delivery seat 203 is provided with a water inlet and a water outlet, the lower end of the pretreatment tank 102 is provided with a dehydration element for dehydrating the condensed gas, the water inlet on the water delivery seat 203 is communicated with an external circulating pump, the external circulating pump is communicated with the refrigeration device to inject refrigerant, and then the external circulating pump is used to extract the refrigerant from the water outlet to complete the water circulation condensation work, the refrigerant enters the inside of the heat dissipation water pipe 202 and the heat dissipation fin 201 to produce heat exchange, so that the temperature of the pretreatment tank 102 rapidly decreases, and the gas sample is condensed and dehydrated;

[0028] In one embodiment, as shown in Figure 2 and Figure 3 As shown, the dehydration element includes an adsorption block 204, the adsorption block 204 is arranged at the lower end of the pretreatment tank 102, the lower end of the adsorption block 204 is provided with a water pumping seat 205 for pumping condensed water, the condensed water is generated by the condensation work of the gas sample, the condensed water enters the inside of the adsorption block 204 through the pretreatment tank 102, the adsorption block 204 absorbs the condensed water to reduce the moisture content in the pretreatment tank 102, the condensed water absorbed by the adsorption block 204 is pumped away through the water pumping seat 205 for drying, and the adsorption performance of the adsorption block 204 is maintained;

[0029] In one embodiment, as shown in Figure 1 and Figure 4 As shown, the storage mechanism includes a gas storage tank 105, the pretreatment tank 102 is communicated with the gas storage tank 105 through a gas delivery pipe 104, and the inside of the gas storage tank 105 is provided with a protective net to improve the storage strength and prevent the tank body from being broken to cause safety hazards.

[0030] The above embodiment discloses a kind of methane sample rapid pretreatment device, wherein, by suction valve 101 suction to collect gas sample, by the filter block 103 being provided with in suction valve 101 to gas sample is filtered, prevent particulate matter to enter pretreatment tank 102, by pretreatment tank 102 to gas sample is dehydrated, by gas pipe 104 to transport the gas sample after dehydration, by heat exchange with air through radiating fin 201, the temperature of pretreatment tank 102 is reduced, the stability of gas in pretreatment tank 102 is maintained, gas temperature is reduced, by the water inlet on water delivery seat 203 is connected with external circulating pump, by external circulating pump and refrigerator are communicated to inject refrigerant, again by external circulating pump and the refrigerant of water outlet are extracted, complete water circulation condensation work, refrigerant enters radiating water pipe 202 inside and radiating fin 201 generates heat exchange, the temperature of pretreatment tank 102 is rapidly reduced, gas sample is condensed and dehydrated, by gas sample to carry out condensation work to produce condensed water, condensed water is passed through pretreatment tank 102 and enters the inside of adsorption block 204, by adsorption block 204 to condensed water is absorbed, reduce the moisture content in pretreatment tank 102, by water extraction seat 205 and the condensed water of adsorption block 204 absorption are extracted, keep adsorption block 204 adsorption performance, by gas storage tank 105 to collect the gas sample after dehydration, the inside of the gas storage tank 105 is equipped with protective net, improve storage strength, prevent tank body rupture and cause security risk.

[0031] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of change or replacement within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of claims.

Claims

1. A rapid pretreatment device for methane sample, comprising a suction valve (101), the lower end of which is communicated with a pretreatment tank (102) for collecting methane gas, a filter block (103) for filtering the suctioned gas is arranged inside the suction valve (101), and the upper end of the pretreatment tank (102) is communicated with a gas conveying pipe (104), characterized in that, The pre-treatment tank (102) is provided with a condensing mechanism for condensing and dehydrating methane gas, and the pre-treatment tank (102) is connected to a storage mechanism for storing gas samples through a gas conveying pipe (104).

2. A rapid pre-treatment device for methane samples according to claim 1, characterized in that, The condensing mechanism comprises heat dissipation fins (201), and the pre-treatment tank (102) is uniformly provided with a plurality of heat dissipation fins (201), and the heat dissipation fins (201) are provided with a water cooling assembly for water cooling the heat dissipation fins (201).

3. A rapid pre-treatment device for methane samples according to claim 2, characterized in that, The water cooling assembly comprises heat dissipation water pipes (202), and the heat dissipation fins (201) are provided with two heat dissipation water pipes (202), and the two heat dissipation water pipes (202) are connected to a water conveying seat (203) in the middle, and the water conveying seat (203) is provided with a water inlet and a water outlet, and the pre-treatment tank (102) is provided with a dehydration element for dehydrating the condensed gas at the lower end.

4. A rapid pre-treatment device for methane samples according to claim 3, characterized in that, The dehydration element comprises an adsorption block (204), and the adsorption block (204) is arranged at the lower end of the pre-treatment tank (102), and the adsorption block (204) is provided with a water pumping seat (205) for pumping condensed water.

5. The rapid preconcentrator for methane samples of claim 1, wherein, The storage mechanism comprises a gas storage tank (105), and the pre-treatment tank (102) is connected to the gas storage tank (105) through the gas conveying pipe (104), and the gas storage tank (105) is provided with a protective net inside.

6. The rapid preconcentrator for methane samples of claim 1, wherein, The air valve (101) is provided with a sealing plug.

7. A rapid preconcentrator for methane samples as claimed in claim 4, wherein, The adsorption block (204) is filled with water-absorbing cotton inside.

8. The rapid preconcentrator for methane samples of claim 4, wherein, The water pumping seat (205) is provided with a one-way valve inside.

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