Ultralow-temperature condensation enrichment system

An ultra-low temperature and enrichment technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of large cooling loss and large volume, and achieve the effect of reducing volume, reducing volume and reducing heat capacity

Pending Publication Date: 2018-09-28
PIEDMONT SCI ZHUHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of large volume and large cooling loss of the volatile

Method used

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  • Ultralow-temperature condensation enrichment system

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0068] Example 1

[0069] Such as Figure 1-6 As shown, an ultra-low temperature condensation enrichment system of the present invention includes:

[0070] The dewatering pipeline system includes a dewatering pipe 6 and a dewatering pipe heating device, wherein the dewatering pipe 6 includes a first pipe layer 300, a second pipe layer 301 arranged outside the first pipe layer 300, and The second piping layer 301 is used to transfer cold energy to the first piping layer 300, to cool the first piping layer 300, and to make the sample gas passing through the first piping layer 300 Water vapor is condensed on the inner wall of the first pipeline layer 300 to achieve dewatering of the sampled gas. The water removal pipe heating device is used to heat the first pipeline layer 300 to condense on the first pipeline layer 300 The water vapor in 300 evaporates to realize the drying of the water removal pipe 6;

[0071] The enrichment desorption pipeline system includes the enrichment desorpt...

Example Embodiment

[0091] Example 2

[0092] Since the refrigeration temperature of the enrichment desorption tube 7 and the dewatering pipe 6 are different, the enrichment desorption tube 7 generally needs to be around -150°C, and the temperature of the dewatering pipe 6 needs to be around -50°C. Therefore, two different types need to be obtained from the refrigeration system 1 at the same time. The cold source of temperature. In order to further reduce the space occupied by the ultra-low temperature condensation enrichment system and reduce energy consumption, the cold source providing device of the present invention adopts a special structure. The structure of the cold source providing device is specifically introduced below:

[0093] Such as Figure 7 with 8 As shown, the cold source providing device of the present invention includes a refrigeration system 1 and a cold source distribution system 10;

[0094] The refrigeration cold head 2 of the refrigeration system 1 is adapted to be connected to ...

Example Embodiment

[0099] Example 3

[0100] The difference between the third embodiment and the second embodiment is that the heat conduction structure further includes a heat conduction support 205, one end of the heat conduction support 205 is connected to the heat conduction ring 204, and the other end is connected to the auxiliary cold head 206. The cold head 206 is suitable for connecting with the second pipeline layer 301.

[0101] The heat conduction structure includes a thermal resistance mechanism 210, one end of the thermal resistance mechanism 210 is connected to the refrigeration cold head 2, and the other end is connected to the second pipeline layer 301.

[0102] Since the thermal resistance mechanism 210 has thermal resistance, the temperature of the cold energy transferred from the thermal resistance mechanism 210 to the second pipeline layer 301 is higher than that of the refrigeration cold head 202 to the fourth pipeline layer. 101 The temperature of the cooling capacity provided.

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Abstract

The invention provides an ultralow-temperature condensation enrichment system. The ultralow-temperature condensation enrichment system comprises a water removal pipeline system, an enrichment and analysis pipeline system, a cooling system, a cold source distribution system, a thermal insulation system and a control system. The control system controls the water removal pipeline system, the enrichment and analysis pipeline system, the cooling system and the cold source distribution system to work so as to achieve a sampled gas water removal mode, a mode of condensation enrichment of target matter in sampled gas, a mode of heating analysis of the target matter in the sampled gas and a water removal pipe heating drying mode. The ultralow-temperature condensation enrichment system integrates functions of water removal, enrichment and analysis in a high performance mode, and is small in size and low in power consumption.

Description

technical field [0001] The invention relates to the technical field of gas enrichment, in particular to an ultra-low temperature condensation enrichment system. Background technique [0002] In the field of atmospheric monitoring and VOCs (volatile organic compounds) monitoring and governance, it is necessary to enrich and concentrate the monitoring target gas to improve monitoring accuracy and monitoring efficiency. The current enrichment and concentration technologies mainly include adsorption and low-temperature condensation. Among them, the adsorption technology is to enrich the target substances in the sampling gas by passing the sampling gas into the pipeline filled with the adsorption medium. The advantage of this method is that the equipment structure is relatively simple and the cost is low. The disadvantage is that the requirements for the adsorption medium are relatively high. At the same time, the adsorption medium needs to be replaced regularly, and different s...

Claims

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Application Information

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IPC IPC(8): F25B41/00G01N1/40F25B41/40
CPCG01N1/4022G01N2001/4033F25B41/40
Inventor 肖家华苏东波
Owner PIEDMONT SCI ZHUHAI CO LTD
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