Modular reflux sampler

Abstract

The invention is applicable to the technical field of gas cooling devices, and provides a modular reflux sampler which comprises a condensation container and a vortex tube, the condensation container covers the outside of a to-be-cooled gas pipeline, the vortex tube is provided with a cold air nozzle, and the cold air nozzle extends into the condensation container to inject cold air so as to cool the gas pipeline; the vortex tube is connected with a compressed air conduit to input compressed air as the cold air raw material, and a section of the compressed air conduit passes through the condensing container, so that the vortex tube cools the compressed air conduit while cooling the gas pipeline, and the temperature of the compressed air flowing into the vortex tube is reduced; therefore, the temperature of the cold air sprayed by the cold air nozzle is reduced, and the cold air with the lower temperature is input into the condensation container for repeated cooling operation, so that a better cooling effect is achieved.

Description

Technical Field

[0001] The invention belongs to the field of gas cooling devices, in particular to a device for saving energy and improving gas cooling effect. Background Art

[0002] During the gas inspection sampling or emission recovery process, the collected gas must usually be cooled. On the one hand, it condenses the moisture and impurities in the gas to ensure the gas quality to improve the accuracy of inspection and analysis; on the other hand, it reduces pollution emissions to improve the safety of the exhaust gas.

[0003] To this end, a cooler is provided in a known gas pipeline to cool the gas. A common method is to use a vortex tube device, where a cold air nozzle of the vortex tube releases cold air toward the gas pipeline, thereby cooling the gas in the gas pipeline.

[0004] However, the known vortex tube cooler has the disadvantage of insufficient cooling effect in use, resulting in limited quality of gas collection, thus affecting subsequent work, and it is necessary to make improvements.

[0005] The main reason why the known vortex tube coolers are not effective is that the cooling air source of the vortex tube comes from compressed air, which is connected to the vortex tube by a compressor or an air regulator through an air supply pipeline. The air supply pipeline is installed in a normal temperature environment, so that in addition to its own temperature, the compressed air will also absorb ambient heat during the transportation process, so that the compressed air entering the vortex tube has risen to a certain temperature, which naturally reduces the cooling effect of the vortex tube.

[0006] Alternatively, some people consider improving the scheme to increase the number of the vortex tubes so that more cold air can be blown to the gas to be cooled at the same time. However, more cold air can only speed up the cooling speed but cannot reduce the cooling temperature, so the problem of insufficient cooling effect cannot be solved.

[0007] Therefore, a more reasonable solution to reduce the cooling temperature should consider how to reduce the temperature of the compressed air. However, if other cooling units are added to cool the compressed air, it will not only consume more energy, but also, in terms of achieving the purpose, it is more efficient to directly apply the cooling unit to the gas to be cooled.

[0008] Based on the above description, the inventors considered the deficiencies of the known technology and started to work hard on research and development to ensure that the temperature of the compressed air can be effectively reduced, the cooling effect on the collected gas can be improved, and no excess energy is consumed, thereby achieving environmental protection and energy-saving effects. Summary of the invention

[0009] The purpose of the present invention is to provide a modular reflux sampler, aiming to solve the technical problem of how to reduce the temperature of compressed air while improving the cooling effect on the collected gas without consuming excess energy and having both environmental protection and energy-saving effects.

[0010] The present invention is implemented in this way. The present invention provides a modular reflux sampler, comprising:

[0011] A condensation container, which is wrapped around the outside of the gas pipeline to be cooled;

[0012] A vortex tube having a cold air nozzle, wherein the cold air nozzle extends into the condensing container to inject cold air to cool the gas pipeline; the vortex tube is connected to a compressed air conduit to input compressed air as the cold air raw material, wherein a section of the compressed air conduit passes through the condensing container, so that the vortex tube cools the compressed air conduit while cooling the gas pipeline, so that the temperature of the compressed air flowing into the vortex tube itself is reduced, thereby reducing the temperature of the cold air ejected by the cold air nozzle, and then the cold air at a lower temperature is input into the condensing container to repeat the cooling operation to obtain a better cooling effect.

[0013] In one embodiment, the condensation container is vertically arranged in a long cylindrical shape, so that the cold air nozzle extends into the upper end of the condensation container, and an exhaust port is provided at the lower end of the condensation container to allow residual waste gas generated after cooling to flow out from the exhaust port.

[0014] In one embodiment, the compressed air conduit is spirally wound in the section of the condensation container to increase the contact surface area between the compressed air conduit and the cold air.

[0015] In one of the embodiments, at least one of the vortex tube, the compressed air duct and the cold air inlet is provided at the same time and is installed at different positions of the condensation container to cool the condensation container from multiple directions at the same time.

[0016] In one of the embodiments, a filter container is connected to the gas inlet end of the gas pipeline of the condensation container, and a filter layer is arranged inside the filter container to pre-filter the gas in the gas pipeline entering the condensation container.

[0017] In one embodiment, the upper end of the filter container is provided with an extension pipeline connected to the lower end of the condensation container, and the low-temperature, fluid-state residue generated by the condensation container flows through the filter layer to remove impurities generated by the filtration, and the lower end of the filter container is provided with a backwash port to connect steam or compressed air to backwash the particulate impurities or mixtures of heavy oil, tar, etc. attached to the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a modular reflux sampler provided by the present invention;

[0020] Figure 2 A block diagram of the working principle of the modular reflux sampler provided by the present invention; and

[0021] Figure 3 This is a diagram showing an embodiment of the modular reflux sampler provided by the present invention being applied to a reflux sampler.

[0022] Description of reference numerals:

[0023] 100: Condensation container

[0024] 110: Exhaust port

[0025] 200: Vortex tube

[0026] 210: Air conditioning nozzle

[0027] 220: Compressed air duct

[0028] 230: Compressor or compressed air regulator

[0029] 300: Gas pipeline

[0030] 400: Reflux Sampler

[0031] 410: Shell

[0032] 420: Filter container

[0033] 430: Filter layer

[0034] 440: Extension pipe

[0035] 450: Blowback port

[0036] 500: Exhaust flow path DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0038] See also Figure 1 , Figure 2 As shown, the present invention provides a modular reflux sampler, which mainly includes a condensation container 100 and a vortex tube 200 .

[0039] The condensation container 100 is coated on the outside of the gas pipeline 300 to be cooled, and the vortex tube 200 has a cold air nozzle 210, which extends into the condensation container 100 to inject cold air to cool the gas pipeline 300; the vortex tube 200 is connected to a compressed air conduit 220 to input compressed air from a compressor or a compressed air regulator 230 as the cold air raw material, wherein a section of the compressed air conduit 220 passes through the condensation container 100, so that the vortex tube 200 cools the compressed air conduit 220 while cooling the gas pipeline 300, so that the temperature of the compressed air flowing into the vortex tube 200 itself is reduced, thereby reducing the temperature of the cold air ejected by the cold air nozzle 210.

[0040] The working principle of the device composed of the above-mentioned units is that the cold air generated first is used to cool the gas pipeline 300 at the beginning. At the same time, the cold air will also pass through the section position of the compressed air conduit 220 of the condensing container 100 to pre-cool the compressed air; then, the compressed air with a lower temperature is introduced into the vortex tube 200 to generate the cold air with a lower temperature, which can be input into the condensing container 100 for cooling at a lower temperature. In this way, the above-mentioned actions are repeated over and over again, which can greatly reduce the temperature of the cold air output to improve the cooling effect of the gas pipeline 300. Moreover, the cooling operation does not need to consume additional energy, so it can ensure the demands of energy saving and environmental protection.

[0041] In the above-mentioned design, the condensation container 100 is vertically arranged in a long cylindrical shape, so that the cold air nozzle 210 extends into the upper end of the condensation container 100, and an exhaust port 110 is provided at the lower end of the condensation container 100. In this way, the cold air can fall naturally to fully cool the gas pipeline 300 therein, and the residue produced by condensation after cooling can be discharged from the exhaust port 110.

[0042] In addition, the compressed air conduit 220 is spirally wound in the section of the condensation container 100. The spiral winding can increase the contact area between the compressed air conduit 220 and the condensation container 100, thereby improving the cooling effect of the compressed air.

[0043] In addition, the vortex tube 200, the compressed air conduit 220 and the cold air inlet are provided at least one at a time (not shown), and can be installed at different positions of the condensation container 100 to cool the condensation container 100 from multiple directions at the same time.

[0044] See also Figure 3 As shown, the present invention can be applied in practice to gas sampling operations. For example, the reflux sampler 400 provided in this embodiment is vertically mounted on the exhaust flow path 500 of the industrial process. The gas pipeline 300 of the present invention is arranged inside the reflux sampler 400 so that the gas pipeline 300 is connected to the exhaust flow path for gas sampling.

[0045] The reflux sampler 400 includes two main parts, namely, an upper condenser section (Condenser Section) and a lower filter section (Filter Section). The condenser section has a metal (e.g., stainless steel) shell 410 for packaging the condenser container 100 of the present invention. The filter section includes a filter container 420, and a filter layer 430 is arranged inside the filter container 420. The filter layer 430 is a coarse metal (e.g., stainless steel) mesh. In this way, the high-temperature process gas introduced by the exhaust flow path 500 will be pre-condensed by the filter container 420 before entering the condenser container 100. Heavy oils and tars or dust will then be filtered out and attached to the filter layer 430, and will fall back into the exhaust flow path 500 by gravity.

[0046] Furthermore, the upper end of the filter container 420 is provided with an extension pipe 440 connected to the lower end of the condensation container 100, and the residue produced by the condensation container 100 flows through the filter layer 430. Since the residue produced by the condensation container 100 can still maintain a certain low temperature, it can help cool down the high-temperature process gas, and the residue is mainly a condensed water mixture, which has a fluid state, so it can be washed away to take away the impurities produced by the filtration, and fall back to the exhaust flow path 500 by gravity. The lower end of the filter container is provided with a backwash port 450, which can be connected to steam or compressed air to backwash the particulate impurities or heavy oil, tar and other mixtures attached to the filter layer 430.

[0047] Of course, the present invention is not limited to gas sampling work. Any work involving cooling the gas, such as various waste gas recovery and processing operations, falls within the protection scope of the present invention.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should be included in the protection scope of the patent application of the present invention.

Claims

1. A modular reflux sampler, It is characterized in that Included are: A condensation container, which is wrapped around the outside of the gas pipeline to be cooled; The vortex tube has a cold air nozzle, which extends into the condensation container; the vortex tube is connected to a compressed air conduit, wherein a section of the compressed air conduit passes through the condensation container.

2. The modular reflux sampler according to claim 1, It is characterized in that The condensation container is vertically arranged in a long cylindrical shape, the cold air nozzle extends into the upper end of the condensation container, and the lower end of the condensation container is provided with a discharge outlet.

3. The modular reflux sampler according to claim 1, It is characterized in that The compressed air conduit is spirally wound in the section of the condensation container.

4. The modular reflux sampler according to claim 1, It is characterized in that The vortex tube, the compressed air conduit and the cold air inlet are provided at least one at a time and are installed at different positions of the condensation container.

5. The modular reflux sampler according to claim 1, It is characterized in that The gas inlet end of the gas pipeline of the condensation container is connected to a filter container, and a filter layer is arranged inside the filter container.

6. The modular reflux sampler according to claim 5, It is characterized in that An extension pipeline is provided at the upper end of the filter container and is connected to the lower end of the condensation container.

Images