A high-temperature and high-pressure gas dehumidification device

Abstract

The present invention discloses a high-temperature and high-pressure gas dehumidification device, which includes a precooling heat exchanger, a condensate heat exchanger, a vortex tube, a water-vapor separator, and an energy recovery device. Two pipelines are branched from the outlet of the main air duct of the precooling heat exchanger. One pipeline at the outlet of the main air duct of the precooling heat exchanger is connected to the inlet of the main air duct of the condensate heat exchanger, and the other pipeline at the outlet of the main air duct of the precooling heat exchanger is connected to the inlet of the vortex tube. The cold-end outlet of the vortex tube is connected to the inlet of the heat exchange air duct in the condensate heat exchanger; the outlet of the main air duct of the condensate heat exchanger is connected to the inlet of the water-vapor separator, the gas-phase output port of the water-vapor separator is connected to the inlet of the main air duct in the energy recovery device, the outlet of the heat exchange air duct in the condensate heat exchanger is connected to the first heat exchange air duct in the energy recovery device, and the hot-end outlet of the vortex tube is connected to the second heat exchange air duct in the energy recovery device. The device of the present invention has no mechanical moving parts, does not require additional power input, and operates only relying on its own high-pressure gas source.

Description

Technical Field

[0001] The present invention relates to the field of air dehumidification devices, and specifically to a high-temperature and high-pressure gas dehumidification device. Background Art

[0002] Currently, many special devices require the use of high-temperature and high-pressure gas sources. The moisture in high-temperature and high-pressure gases generally exists in a gaseous state and is free in the high-temperature gas. During the use of the gas source, due to changes in temperature and pressure, the water vapor is often converted into a liquid state, resulting in device failures or reduced service life. Therefore, there is an urgent need to remove the moisture in high-temperature and high-pressure air.

[0003] Currently, the commonly used method is to use an external device to pressurize or cool the air to condense the gaseous moisture into a liquid state, and then remove it through a water-vapor separation device. This method mainly has the following disadvantages:

[0004] ① An additional power source is required to drive the external device.

[0005] ② The external device is an electromechanical equipment system, which is relatively complex and will reduce the reliability of the entire device. Summary of the Invention

[0006] The present invention provides a high-temperature and high-pressure gas dehumidification device to solve the problems of the existing dehumidification device that requires additional power drive and has low reliability.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A high-temperature and high-pressure gas dehumidification device includes a precooling heat exchanger (1), a condensate heat exchanger (3), a vortex tube (4), a water-vapor separator (5), and an energy recovery device (6), wherein:

[0009] The precooling heat exchanger (1) has a main air duct. The inlet of the main air duct of the precooling heat exchanger (1) is connected to an external high-temperature, high-pressure, and high-humidity gas source through a pipeline, and the outlet of the main air duct of the precooling heat exchanger (1) branches into two pipelines;

[0010] The condensate heat exchanger (3) has a main air duct and a heat exchange air duct. One of the pipelines at the outlet of the main air duct of the precooling heat exchanger (1) is connected to the inlet of the main air duct of the condensate heat exchanger (3);

[0011] The vortex tube (4) is used to divide the incoming gas into a low-temperature gas flow and a high-temperature gas flow. The vortex tube (4) has an inlet for introducing gas, a cold-end outlet for outputting the low-temperature gas flow, and a hot-end outlet for outputting the high-temperature gas flow. One of the pipelines at the outlet of the main air duct of the precooling heat exchanger (1) is connected to the inlet of the vortex tube (4), and the cold-end outlet of the vortex tube (4) is connected to the inlet of the heat exchange air duct in the condensate heat exchanger (3) through a pipeline;

[0012] The water vapor separator (5) is used to separate water from the gas. The water vapor separator (5) has an inlet for introducing the gas, a liquid phase outlet for outputting water, and a gas phase outlet for outputting gas. The main airway outlet of the condensate heat exchanger (3) is connected to the inlet of the water vapor separator (5) through a pipeline;

[0013] The energy recovery device (6) has a main airway, a first heat exchange airway, and a second heat exchange airway. The gas phase outlet of the water vapor separator (5) is connected to the inlet of the main airway in the energy recovery device (6) through a pipeline. The outlet of the main airway in the energy recovery device (6) outputs high-pressure dry air to the outside. The outlet of the heat exchange airway in the condensate heat exchanger (3) is connected to the inlet of the first heat exchange airway in the energy recovery device (6) through a pipeline. The hot end outlet of the vortex tube (4) is connected to the inlet of the second heat exchange airway in the energy recovery device (6) through a pipeline.

[0014] Furthermore, the precooling heat exchanger (1) has a heat exchange channel A. The liquid phase outlet of the water vapor separator (5) is connected to the inlet of the heat exchange channel A in the precooling heat exchanger (1) through a pipeline.

[0015] Furthermore, the precooling heat exchanger (1) has a heat exchange channel B. The outlet of the first heat exchange airway in the energy recovery device (6) is connected to the inlet of the heat exchange channel B in the precooling heat exchanger (1) through a pipeline.

[0016] Furthermore, the precooling heat exchanger (1) has a heat exchange channel C. The outlet of the second heat exchange airway in the energy recovery device (6) is connected to the inlet of the heat exchange channel C in the precooling heat exchanger (1) through a pipeline.

[0017] In the present invention, the high-temperature, high-pressure, and high-humidity gas output from the high-temperature, high-pressure, and high-humidity gas source first enters the main airway of the precooling heat exchanger, and is respectively output from the main airway of the precooling heat exchanger to the main airway of the condensate heat exchanger and the vortex tube. In the vortex tube, the high-temperature, high-pressure, and high-humidity gas is divided into a low-temperature gas stream and a high-temperature gas stream. The low-temperature gas stream is input into the heat exchange airway of the condensate heat exchanger. Through the heat exchange of the low-temperature gas stream, the water in the high-temperature, high-pressure, and high-humidity gas entering the main airway of the condensate heat exchanger condenses. After the gas with condensed water output from the main airway of the condensate heat exchanger enters the water vapor separator and is separated, the dry high-temperature, high-pressure gas output from the water vapor separator enters the main airway of the energy recovery device.

[0018] At the same time, the outlet of the heat exchange airway of the condensate heat exchanger is connected to the first heat exchange airway of the energy recovery device. Thus, the low-temperature gas stream absorbs heat in the heat exchange airway of the condensate heat exchanger to form a high-temperature gas, and the high-temperature gas then enters the first heat exchange airway of the energy recovery device to further heat the dry high-temperature, high-pressure gas in the main airway of the energy recovery device.

[0019] Similarly, the high-temperature air flow output from the vortex tube enters the second heat exchange air duct of the energy recovery device, which is used to further heat the dry, high-temperature and high-pressure gas in the main air duct of the energy recovery device.

[0020] The low-temperature water output from the water vapor separator and the low-temperature gas with heat removed output from the first and second heat exchange air ducts of the energy recovery device are respectively sent to different heat exchange channels of the pre-cooling heat exchanger, which are used to preliminarily cool down the high-temperature, high-pressure and high-humidity gas entering the main air duct of the pre-cooling heat exchanger.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. The present invention combines pre-cooling and condensate heat recovery technologies and has no mechanical moving parts.

[0023] 2. The present invention adopts a new condensate structure, which expands the operating range and improves the application range of the product.

[0024] 3. The present invention does not require additional input power and operates only relying on its own high-pressure gas source.

[0025] 3. The new process of the present invention is simple, has low noise, and can also be extended to the field of dehumidifiers.

[0026] 4. Each component device of the present invention has mature technology and is easy to implement. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the present invention. Detailed Embodiments

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] As Figure 1 shown, this embodiment discloses a high-temperature and high-pressure gas dehumidification device, which includes a pre-cooling heat exchanger 1, a tee 2, a condensate heat exchanger 3, a vortex tube 4, a water vapor separator 5, and an energy recovery device 6.

[0030] The pre-cooling heat exchanger 1 has a main air duct 1.1, a heat exchange channel A 1.2, a heat exchange channel B 1.3, and a heat exchange channel C 1.4. The medium passing through the main air duct 1.1 can respectively form heat exchange with the media passing through the heat exchange channels A 1.2, B 1.3, and C 1.4. The inlet of the main air duct 1.1 in the pre-cooling heat exchanger 1 is connected to an external high-temperature, high-pressure and high-humidity gas source through a pipeline to introduce high-temperature, high-pressure and high-humidity gas. The outlet of the main air duct 1.1 in the pre-cooling heat exchanger 1 is connected to the first pipe orifice of the tee 2 through a pipeline.

[0031] The vortex tube 4 has an inlet, a cold-end outlet, and a hot-end outlet. The vortex tube 4 divides the gas introduced into its interior into a low-temperature gas stream and a high-temperature gas stream. The low-temperature gas stream is output outward through the cold-end outlet of the vortex tube 4, and the high-temperature gas stream is output outward through the hot-end outlet of the vortex tube 4. The second pipe orifice of the three-way pipe 2 is connected to the inlet of the vortex tube 4 through a pipeline.

[0032] The condensate heat exchanger 3 has a main air passage 3.1 and a heat exchange air passage 3.2. The medium passing through the main air passage 3.1 can exchange heat with the medium passing through the heat exchange air passage 3.2. The third pipe orifice of the three-way pipe 2 is connected to the inlet of the main air passage 3.1 of the condensate heat exchanger 3 through a pipeline.

[0033] Thus, the high-temperature, high-pressure, and high-humidity gas output from the main air passage 1.1 in the precooling heat exchanger 1 is divided into two paths by the three-way pipe 2. One path enters the vortex tube 4 to form a low-temperature gas stream and a high-temperature gas stream, and the other path enters the main air passage 3.1 of the condensate heat exchanger 3.

[0034] The cold-end outlet of the vortex tube 4 is connected to the inlet of the heat exchange air passage 3.2 in the condensate heat exchanger 3 through a pipeline. Thus, the low-temperature gas stream flowing out from the cold-end outlet of the vortex tube 4 enters the heat exchange air passage 3.2 in the condensate heat exchanger 3 and exchanges heat with the high-temperature, high-pressure, and high-humidity gas in the main air passage 3.1 of the condensate heat exchanger 3, causing the moisture in the high-temperature, high-pressure, and high-humidity gas in the main air passage 3.1 of the condensate heat exchanger 3 to condense.

[0035] The water vapor separator 5 is used to separate the moisture in the gas introduced into its interior. The water vapor separator 5 has an inlet, a gas-phase outlet, and a liquid-phase outlet. The outlet of the main air passage 3.1 in the condensate heat exchanger 3 is connected to the inlet of the water vapor separator 5 through a pipeline. Thus, the gas with condensed water output from the main air passage 3.1 in the condensate heat exchanger 3 enters the water vapor separator 5, and the moisture therein is separated. The separated water is output outward through the liquid-phase outlet of the water vapor separator 5, and the dry high-temperature and high-pressure gas is output outward through the gas-phase outlet of the water vapor separator 5.

[0036] The energy recovery device 6 has a main air duct 6.1, a first heat exchange air duct 6.2, and a second heat exchange air duct 6.3. The medium passing through the main air duct 6.1 can respectively form heat exchange with the media passing through the first heat exchange air duct 6.2 and the second heat exchange air duct 6.3. The gas-phase output port of the water vapor separator 5 is connected to the inlet of the main air duct 6.1 in the energy recovery device 6 through a pipeline. Thus, the dry high-temperature and high-pressure gas output by the water vapor separator 5 enters the main air duct 6.1 of the energy recovery device 6. The outlet of the heat exchange air duct 3.2 in the condensate heat exchanger 3 is connected to the inlet of the first heat exchange air duct 6.2 in the energy recovery device 6 through a pipeline. Thus, the low-temperature air flow output by the vortex tube 4 forms a high-temperature air flow after absorbing the heat of the high-temperature, high-pressure, and high-humidity gas in the main air duct 3.1 of the condensate heat exchanger 3. The high-temperature air flow enters the first heat exchange air duct 6.2 in the energy recovery device 6 and further heats the dry high-temperature and high-pressure gas in the main air duct 6.1 of the energy recovery device 6. The hot-end outlet of the vortex tube 4 is connected to the inlet of the second heat exchange air duct 6.3 in the energy recovery device 6 through a pipeline. Thus, the high-temperature air flow directly discharged by the vortex tube 4 enters the second heat exchange air duct 6.3 in the energy recovery device 6 and further heats the dry high-temperature and high-pressure gas in the main air duct 6.1 of the energy recovery device 6. Through the above method, the dry high-temperature and high-pressure gas in the main air duct 6.1 of the energy recovery device 6 can be further heated to maintain the temperature of the gas. The outlet of the main air duct 6.1 of the energy recovery device 6 is connected to the equipment that requires high-temperature and high-pressure dry air outside through a pipeline, and the dry high-temperature and high-pressure gas is output from the main air duct 6.1 of the energy recovery device 6 to the outside.

[0037] The outlet of the second heat exchange air duct 6.3 in the energy recovery device 6 is connected to the inlet of the heat exchange channel A1.2 in the pre-cooling heat exchanger 1 through a pipeline. The outlet of the first heat exchange air duct 6.2 in the energy recovery device 6 is connected to the inlet of the heat exchange channel B1.3 in the pre-cooling heat exchanger 1 through a pipeline. The liquid-phase output port of the water vapor separator 5 is connected to the inlet of the heat exchange channel C1.4 in the pre-cooling heat exchanger 1 through a pipeline. The high-temperature air flows in the first heat exchange air duct 6.2 and the second heat exchange air duct 6.3 in the energy recovery device 6 become low-temperature air flows after losing heat. The low-temperature air flows respectively enter the corresponding heat exchange air ducts in the pre-cooling heat exchanger 1. At the same time, the low-temperature liquid output by the water vapor separator 5 enters the corresponding heat exchange air ducts in the pre-cooling heat exchanger 1. Thus, the water and the low-temperature air flow in the heat exchange air ducts of the pre-cooling heat exchanger 1 initially cool down the high-temperature, high-pressure, and high-humidity gas entering the main air duct 1.1 of the pre-cooling heat exchanger 1. The outlets of the heat exchange channel A1.2, the heat exchange channel B1.3, and the heat exchange channel C1.4 in the pre-cooling heat exchanger 1 respectively lead to the atmospheric environment.

[0038] In this embodiment, a part of the high-temperature and high-pressure air is passed through the vortex tube 4 to obtain a low-temperature air flow, and then the low-temperature air is exchanged heat with the high-temperature, high-pressure and high-humidity gas in the condensate heat exchanger 3. After the moisture in the high-temperature, high-pressure and high-humidity gas is condensed, it is separated by the water-vapor separator 5 and sent to the energy recovery device 6. In the energy recovery device 6, the high-temperature air flow output by the vortex tube 4 and the heat-absorbing air flow output from the heat exchange air passage of the condensate heat exchanger 3 are used to heat the gas separated by the water-vapor separator 5, which can maintain the temperature of the gas, and finally the dry high-temperature and high-pressure gas is transported outward by the energy recovery device 6.

[0039] In the precooling heat exchanger 1, the high-temperature, high-pressure and high-humidity gas entering the main air passage 1.1 of the precooling heat exchanger 1 can be cooled for the first time by using the relatively low-temperature air generated by the energy recovery device 6 and the relatively low-temperature liquid water generated in the water-vapor separator 5, so as to more effectively reduce the temperature of the high-pressure air below the dew point temperature in the condensate heat exchanger 3.

[0040] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. As long as such a combination does not violate the idea of the present invention, it should also be regarded as the content disclosed in the present disclosure. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0041] The present invention is not limited to the specific details in the above embodiments. Without departing from the technical concept of the present invention and within the scope not departing from the design idea of the present invention, various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A high-temperature and high-pressure gas dehumidification device, characterized in that, It includes a precooling heat exchanger (1), a condensate heat exchanger (3), a vortex tube (4), a water vapor separator (5), and an energy recovery device (6), where: The precooling heat exchanger (1) has a main air duct. The inlet of the main air duct of the precooling heat exchanger (1) is connected to an external high-temperature, high-pressure, and high-humidity gas source through a pipeline, and the outlet of the main air duct of the precooling heat exchanger (1) branches into two pipelines; The condensate heat exchanger (3) has a main air duct and a heat exchange air duct. One of the pipelines at the outlet of the main air duct of the precooling heat exchanger (1) is connected to the inlet of the main air duct of the condensate heat exchanger (3); The vortex tube (4) is used to divide the incoming gas into a low-temperature air flow and a high-temperature air flow. The vortex tube (4) has an inlet for introducing gas, a cold-end outlet for outputting the low-temperature air flow, and a hot-end outlet for outputting the high-temperature air flow. One of the pipelines at the outlet of the main air duct of the precooling heat exchanger (1) is connected to the inlet of the vortex tube (4). The cold-end outlet of the vortex tube (4) is connected to the inlet of the heat exchange air duct in the condensate heat exchanger (3) through a pipeline; The water vapor separator (5) is used to separate water from the gas. The water vapor separator (5) has an inlet for introducing gas, a liquid-phase outlet for outputting water, and a gas-phase outlet for outputting gas. The outlet of the main air duct of the condensate heat exchanger (3) is connected to the inlet of the water vapor separator (5) through a pipeline; The energy recovery device (6) has a main air duct, a first heat exchange air duct, and a second heat exchange air duct. The gas-phase outlet of the water vapor separator (5) is connected to the inlet of the main air duct in the energy recovery device (6) through a pipeline. The outlet of the main air duct in the energy recovery device (6) outputs high-pressure dry air outward. The outlet of the heat exchange air duct in the condensate heat exchanger (3) is connected to the inlet of the first heat exchange air duct in the energy recovery device (6) through a pipeline. The hot-end outlet of the vortex tube (4) is connected to the inlet of the second heat exchange air duct in the energy recovery device (6) through a pipeline; The precooling heat exchanger (1) has a heat exchange channel A. The liquid-phase outlet of the water vapor separator (5) is connected to the inlet of the heat exchange channel A in the precooling heat exchanger (1) through a pipeline; The precooling heat exchanger (1) has a heat exchange channel B. The outlet of the first heat exchange air duct in the energy recovery device (6) is connected to the inlet of the heat exchange channel B in the precooling heat exchanger (1) through a pipeline.

2. The high-temperature and high-pressure gas dehumidification device according to claim 1, characterized in that, The precooling heat exchanger (1) has a heat exchange channel C. The outlet of the second heat exchange air duct in the energy recovery device (6) is connected to the inlet of the heat exchange channel C in the precooling heat exchanger (1) through a pipeline.

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