A regeneration device and a regeneration method of a carbon molecule-containing desiccant

Abstract

The present application belongs to the field of desiccant regeneration equipment, and provides a regeneration device and method for carbon-containing molecular desiccant; it comprises at least two drying containers, an air blower, and an air flow heater; further comprising an air filter, a refrigerating device, and an air flow control assembly comprising at least four electronic valve components; when part of the electronic valve components are closed and another part of the electronic valve components are disconnected, the filtered air flow is selectively introduced into at least one carbon-containing molecular desiccant drying container after being cooled by the refrigerating device; the subsequent air flow is heated by the air flow heater and flows into the drying container to contact the carbon-containing molecular desiccant placed in the container cavity to achieve regeneration. Compared with the prior art, the present application has the advantages of more sufficient and more complete regeneration of carbon-containing molecular desiccant by setting the air filter, the refrigerating device, and the air flow control assembly, so as to improve the regeneration effect and further improve the regeneration efficiency.

Description

Technical Field

[0001] This invention belongs to the field of desiccant regeneration equipment, and more specifically, relates to a regeneration device and method for a carbon-containing molecular desiccant. Background Technology

[0002] Regenerative desiccant dryers are devices that use molecular sieves or alumina as desiccants. These devices dehydrate and dry compressed air under a certain working pressure and can repeatedly regenerate and cycle within a specified period.

[0003] In the relevant prior art, for example, the Chinese invention patent application entitled "An Automatic Homogenizing Silica Gel Desiccant Regeneration Device" (publication number CN112295943A) discloses a technical solution that is "An automatic homogenizing silica gel desiccant regeneration device, including a working frame, a control display screen, a feeding mechanism, a weight sorting mechanism, a storage bin, a bag unpacking mechanism, and a screening mechanism; the side of the working frame is connected to the control display screen via a support seat." This patent uses weight sorting of silica gel desiccant to remove desiccant particles with excessive moisture content, avoiding the problem of low regeneration quality due to excessive moisture adsorption by the silica gel particles. At the same time, it disperses the silica gel particles piled up in the same place in the packaging bag, so that the fewest silica gel particles are subjected to shear force, preventing the silica gel particles from shrinking in size and thus reducing their adsorption performance. However, due to the limitations of the drying device's structure, there are technical problems in the desiccant regeneration process, such as insufficient and incomplete regeneration, resulting in unsatisfactory regeneration effects and requiring frequent rework. Summary of the Invention

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a regeneration device and method for carbon-containing molecular desiccants, which has the advantage of making the regeneration of carbon-containing molecular desiccants more complete and thorough.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A regeneration device for a carbon-containing molecular desiccant, comprising:

[0007] At least two drying containers, each having a cavity for holding a desiccant containing carbon molecules;

[0008] An air inlet device, the inlet end of which is in contact with the outside air;

[0009] An airflow heater is included for heating the airflow blown in by an air inlet; it also includes...

[0010] An air filter, whose air inlet part is connected with the air blower outlet end, is used to filter the impurities in the air flow of the air blower;

[0011] A refrigerator, whose inlet part is connected with the air outlet part of the air filter through a pipeline, and whose outlet part is connected with the air flow heater inlet end through another pipeline;

[0012] An air flow control assembly, which comprises at least four electronic valves, is arranged between the air inlet of the drying container and the air flow heater outlet end, and is used to control the air flow from the air filter by selectively controlling the closing or opening of the electronic valves; when some of the electronic valves are closed and the others are opened, the filtered air flow is selectively introduced into at least one drying container containing carbon molecular sieve drying agent after being cooled by the refrigerator; the subsequent air flow is heated by the air flow heater and then introduced into the drying container to contact the carbon molecular sieve drying agent placed in the container cavity for regeneration.

[0013] As a further preferred technical solution of the present application, at least one water content detector and a plurality of one-way valves are further included, and the outlet end of the drying container is connected with the water content detector through another pipeline; one end of the one-way valve is connected with the water content detector port away from the drying container, and the other end is connected with the outside.

[0014] As a further preferred technical solution of the present application, a gas flow bidirectional valve is further included, the water content detector and the one-way valve are both two, and the drying container is also two;

[0015] The two ports of the gas flow bidirectional valve are connected with the outlet ends of the two drying containers in the transverse direction, and the two

[0016] one-way valves are connected with the two water content detector ports away from the drying container in parallel.

[0017] As a further preferred technical solution of the present application, a plurality of one-way throttling valves are further included, one part of the one-way throttling valves are connected with the air flow heater and the air flow control assembly respectively, another part of the one-way throttling valves are connected with the air flow control assembly and the drying container respectively, and another part of the one-way throttling valves are arranged at the outlet of the drying container.

[0018] As a further preferred technical solution of the present application, the air flow control assembly further comprises a plurality of communication devices, the four electronic valves in the air flow control assembly are respectively a first electronic switch valve, a second electronic switch valve, a third electronic switch valve and a fourth electronic switch valve, the first electronic switch valve is connected in series with the second electronic switch valve through the pipeline and the communication device, the third electronic switch valve is connected in series with the fourth electronic switch valve through another pipeline and another communication device, the first electronic switch valve is connected in parallel with the third electronic switch valve through the other pipeline and the communication device, and the second electronic switch valve is connected in parallel with the fourth electronic switch valve through the other pipeline and the communication device.

[0019] The first electronic switch valve and the second electronic switch valve are connected in series with the air flow heater outlet through the other pipeline and the communication device, one of the air inlets of the dry containers is connected to the communication device between the first electronic switch valve and the second electronic switch valve through the other pipeline, the air inlet of the other dry container is connected to the communication device between the third electronic switch valve and the fourth electronic switch valve through the other pipeline, and the fourth electronic switch valve extends to the outside through the other pipeline.

[0020] As a further preferred technical solution of the present application, the air filter comprises a longitudinal cylinder with a filter embedded therein and a T-shaped flow cavity cylinder, the air filter air inlet is formed by a longitudinal cylinder side wall perforation process, and the air filter air outlet is formed by a T-shaped flow cavity cylinder top plane downward perforation process.

[0021] As a further preferred technical solution of the present application, the dry container is made of aluminum alloy by integral injection molding, and the pipeline is made of stainless steel.

[0022] The present application also provides a regeneration method applied to the regeneration device of the carbon-containing molecular desiccant as described above, which comprises the following steps

[0023] In the first step S1, the air blower, the air filter, the air flow heater and the air flow control assembly are started, so that the air flow from the outside is filtered and purified, and then cooled by the air flow heater;

[0024] In the second step S2, the air flow control assembly is adjusted, and the air flow obtained in the step S1 selectively enters the contact with the carbon-containing molecular desiccant placed in the dry container after passing through the pipeline and the air flow control assembly.

[0025] The second step S3, the refrigerator is closed, and the air flow heater and the air flow control assembly are started, so that the heated air flow selectively enters the contact carbon molecular dry agent placed in the drying container to achieve regeneration after passing through the pipeline and the air flow control assembly.

[0026] As described above, the present application provides a regeneration device and a regeneration method for carbon molecular dry agent, which has the following beneficial effects: compared with the prior art, by arranging the air filter, the refrigerator and the air flow control assembly, the air flow is first filtered and purified, and then the electronic valve of the air flow control assembly is adjusted, so that the cooled filtered air flow enters the drying container containing the carbon molecular dry agent, and then the subsequent air flow is heated by the air flow heater and flows into the drying container. Thus, the carbon molecular dry agent placed in the drying container can be regenerated, which changes the existing regeneration structure of the carbon molecular dry agent, i.e., the air flow is first filtered, then the cooled air flow is introduced, and then the regeneration is achieved by heating. This reduces the frequent return work caused by the insufficient and incomplete regeneration structure of the prior art, and makes the regeneration of the carbon molecular dry agent more complete and thorough, so as to improve the regeneration effect and further improve the regeneration efficiency.

[0027] Additional aspects and advantages of the application will be described in the following description, some of which will be apparent from the following description or will be learned by practice of the application.

[0028] The additional aspects and advantages of the application will be described in the following description, some of which will be apparent from the following description or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0030] Fig. 1 is a structural schematic diagram of a regeneration device for carbon molecular dry agent according to the present application;

[0031] Fig. 2 is a schematic diagram of air flow in the regeneration device for carbon molecular dry agent according to the present application, wherein the first electronic switch valve and the third electronic switch valve of the air flow control assembly are closed, and the second electronic switch valve and the fourth electronic switch valve are opened;

[0032] Fig. 3 is a schematic diagram of air flow in the regeneration device for carbon molecular dry agent according to the present application, wherein the first electronic switch valve, the third electronic switch valve and the fourth electronic switch valve of the air flow control assembly are closed, and the second electronic switch valve is opened.

[0033] Fig. 4 is a schematic diagram of the air flow in the regeneration device of the present application, wherein only the first electronic switch valve of the air flow control assembly is closed;

[0034] Fig. 5 is an enlarged perspective view of the drying container in the regeneration device of the present application.

[0035] Summary of reference signs and their descriptions:

[0036] Drying container 100; container cavity 101;

[0037] Air blower 200;

[0038] Air flow heater 300;

[0039] Air filter 400; longitudinal cylinder 410; T-shaped flow cavity cylinder 420;

[0040] Refrigerator 500;

[0041] Air flow control assembly 600; first electronic switch valve 610; second electronic switch valve 620; third electronic switch valve 630; fourth electronic switch valve 640;

[0042] Water content detector 700; one-way valve 800;

[0043] Air flow two-way valve 900;

[0044] One-way throttle valve 1000. DETAILED DESCRIPTION

[0045] The following illustrates the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure.

[0046] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the conditions under which the invention can be implemented and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation. Specific structures can be described with reference to the accompanying drawings of the patent application.

[0047] Example 1

[0048] This invention provides a regeneration device for a carbon-containing molecular desiccant, as shown in Figures 1 to 5, wherein... Figure 1 The inner circle of the drying container located on the right represents the carbon-containing desiccant to be regenerated, while Figures 2-4 The horizontal and vertical arrows in the diagram represent the direction of airflow; the regeneration device of this invention

[0049] It includes

[0050] At least two drying containers 100, each having a cavity 101 for holding a desiccant containing carbon molecules;

[0051] The air inlet 200 has its inlet end in contact with the outside air.

[0052] Airflow heater 300, used for heating the airflow blown in by air inlet 200; also includes

[0053] An air filter 400 has an air inlet connected to the outlet of the air blower 200. The air filter 400 is used to filter impurities in the airflow blown in by the air blower 200.

[0054] The inlet of the cooler 500 is connected to the air outlet of the air filter 400 via a pipe (not shown in the figure, but referred to as such below), and the outlet of the cooler 500 is connected to the inlet of the airflow heater 300 via another pipe.

[0055] An airflow control assembly 600 includes at least four electronic valves disposed between the air inlet of the drying container 100 and the outlet of the airflow heater 300. The airflow control assembly 600 allows airflow from the air filter 400 to pass through by selectively controlling the closing or opening of the electronic valves. When some of the electronic valves are closed and others are open, the filtered airflow is first cooled by the cooler 500 and then selectively passed into at least one drying container 100 containing a carbon molecule desiccant. The subsequent airflow is then heated by the airflow heater 300 and flows into the drying container 100 to regenerate by contacting the carbon molecule desiccant placed in the cavity 101.

[0056] In this embodiment, the drying container 100 is made of aluminum alloy through integral injection molding, and the pipe is made of stainless steel.

[0057] Example 2

[0058] Based on Example 1, please refer to Figures 1 to 12. Figure 4 As shown, it also includes at least one water content detector 700 and multiple one-way valves 800, the ends of which are connected to the vent of the drying container 100 via another pipe.

[0059] The one-way valve 800 has one end connected to the port of the water content detector 700 on the side away from the drying container 100, and the other end connected to the outside. By setting the water content detector 700, it can be used to detect whether the moisture content of the airflow flowing out of the drying container 100 meets the standard. Combined with the one-way valve 800, it facilitates the reuse of airflow. Specifically, when the moisture content of the outflowing airflow meets the standard, the displaced airflow is discharged to the outside; when the moisture content of the outflowing airflow does not meet the standard, the displaced airflow flows through the airflow bidirectional valve 900 to another drying container 100 for reuse. This allows for the reuse of airflow, thereby achieving the technical effect of saving energy.

[0060] Based on Example 2, as shown in Figure 1, it also includes a two-way airflow valve 900, two water content detectors 700 and two one-way valves 800, and two drying containers 100;

[0061] The two ports of the airflow bidirectional valve 900 are connected laterally between the outlets of the two drying containers 100, and the two one-way valves 800 are connected in parallel to the ports of the two water content detectors 700 on the side away from the drying container 100.

[0062] Please refer to Figure 1. The system also includes multiple one-way throttle valves 1000. A portion of the one-way throttle valves 1000 are connected at both ends between the airflow heater 300 and the airflow control component 600, respectively. Another portion of the one-way throttle valves 1000 are connected at both ends between the airflow control component 600 and the drying container 100, respectively. A third portion of the one-way throttle valves 1000 are located at the air outlet of the drying container 100.

[0063] Please refer to Figure 1 to Figure 4 As shown, the airflow control assembly 600 specifically includes multiple communicating vessels (not shown in the figure, but referred to below). The four electronic valves in the airflow control assembly 600 are a first electronic switching valve 610, a second electronic switching valve 620, a third electronic switching valve 630, and a fourth electronic switching valve 640. The first electronic switching valve 610 is connected in series with the second electronic switching valve 620 through the pipe and communicating vessel. The third electronic switching valve 630 is connected in series with the second electronic switching valve 640 through another pipe and communicating vessel.

[0064] The fourth electronic switch valve 640 is connected in series, the first electronic switch valve 610 is connected in parallel with the third electronic switch valve 630 through the other pipe and connector, and the second electronic switch valve 620 is connected in parallel with the fourth electronic switch valve 640 through the other pipe and connector.

[0065] The first electronic switch valve 610 and the second electronic switch valve 620 are connected to the outlet end of the airflow heater 300 through the other pipe and connector. The air inlet of one of the drying containers 100 is connected to the connector between the first electronic switch valve 610 and the second electronic switch valve 620 through the other pipe. The air inlet of the other drying container 100 is connected to the connector between the third electronic switch valve 630 and the fourth electronic switch valve 640 through the other pipe. The fourth electronic switch valve 640 extends to the outside through the other pipe.

[0066] Please refer to Figures 1 and 5. The air filter 400 includes a longitudinal cylinder 410 with an embedded filter element and a T-shaped flow chamber cylinder 420. The air inlet of the air filter 400 is made by perforating the side wall of the longitudinal cylinder, and the air outlet of the air filter 400 is made by perforating the top plane of the T-shaped flow chamber cylinder downwards.

[0067] This invention application also provides a regeneration method for a regeneration device applied to a carbon-containing molecular desiccant as described above, please refer to Figures 1 to 12.Figure 4 As shown, it includes the following steps

[0068] Step S1: Start the air inlet 200, air filter 400 and cooler 500, and the airflow heater so that the incoming airflow is filtered and purified before being cooled by the cooler.

[0069] The second step, S2, involves regulating the airflow control component 600. The airflow obtained in step S1 passes through the pipe and the airflow control component 600, and then selectively enters and contacts the carbon-containing desiccant placed in the drying container 100.

[0070] Step S3: Turn off the cooler 500 and start the airflow heater 300 and the airflow control component 600, so that the heated airflow passes through the pipe and the airflow control component 600, and then...

[0071] Regeneration can be achieved by selectively contacting the carbon-containing molecular desiccant placed in the drying container 100.

[0072] When using, please refer to Figure 1 to... Figure 4 As shown, the air inlet 200, air filter 400, and cooler 500 are first activated, while the airflow heater 300 is closed. The incoming airflow is filtered and purified before being cooled by the cooler 500. The cooled airflow then passes through a pipe and the airflow control component 600. Specifically, when the first electronic switch valve 610 and the third electronic switch valve 630 are closed, and the second electronic switch valve 620 and the fourth electronic switch valve 640 are open (see the arrows in Figure 2 for the airflow diagram), the filtered, purified, and cooled airflow gradually enters the drying container 100 through the pipe, selectively entering and contacting the carbon-containing desiccant placed inside. Then, the cooler 500 is closed, and the airflow heater 300 and the airflow control component 600 are activated. The heated airflow passes through the pipe and the airflow control component 600, and then the airflow control component 600... The method remains the same as described above, or alternatively, the first electronic switch valve 610, the third electronic switch valve 630, and the fourth electronic switch valve 640 are closed, while the second electronic switch valve 620 is open (see the airflow diagram in Figure 3 for the direction of the arrows). Other control methods can also be used, such as closing only the first electronic switch valve 610, so that one of the drying containers 100 is used for regeneration while the other is in a stopped state (see the airflow diagram in Figure 3 for the direction of the arrows). Figure 4The other regulation modes are not listed one by one, and the working principles are similar; it can be easily understood that: the setting of the air filter plays a role in filtering air impurities, preventing impurities from adversely affecting the reproduction of the carbon-containing molecular desiccant, and ensuring that the reproduction is more sufficient and more thorough; thereby selectively entering the contact with the carbon-containing molecular desiccant placed in the drying container 100 to achieve reproduction, thus changing the existing carbon-containing molecular desiccant reproduction structure mode, that is, first filtering the air flow, then introducing the cooled air flow, and then heating to achieve reproduction, reducing the multiple frequent return work caused by the insufficient and incomplete existing reproduction structure, and making the carbon-containing molecular desiccant reproduction more sufficient and more thorough.

[0073] The carbon-containing molecular desiccant reproduction has the advantages of being more sufficient and more thorough, so as to improve the reproduction effect and further improve the reproduction efficiency.

[0074] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A regeneration device for carbon molecular sieve desiccant, comprising at least two drying vessels, said drying vessels having a container cavity for containing carbon molecular sieve desiccant; an air blower, an inlet end of which is in contact with ambient air; An air flow heater for heating the air flow of an air blower; characterized in that: further comprising an air filter, an air inlet of which is in communication with an outlet end of said air blower, said air filter being used to filter impurities in the air flow of the air blower; a refrigeration device, an inlet of which is in communication with an air outlet of said air filter through a pipe, an outlet of said refrigeration device being in communication with an inlet end of said air flow heater through another pipe; at least one water content detector and a plurality of one-way valves, an end of said water content detector being in communication with an air outlet of said drying vessel through another pipe, one end of said one-way valves being in communication with a port of said water content detector away from said drying vessel, and the other end being in communication with the ambient; further comprising an air flow bi-directional valve, two ports of said air flow bi-directional valve being in communication with two outlet ends of said drying vessels in a transverse direction; an air flow control assembly, comprising at least four electronic valves, a plurality of said electronic valves being arranged between an air inlet of said drying vessel and an outlet end of said air flow heater, said air flow control assembly being used to selectively regulate the air flow from said air filter by selectively regulating the control of closing or opening of the electronic valves; when some of said electronic valves are closed and the other said electronic valves are opened, the filtered air flow is selectively introduced into at least one said drying vessel containing carbon molecular sieve desiccant after being cooled by said refrigeration device; the subsequent air flow is heated by the air flow heater and introduced into the drying vessel to contact the carbon molecular sieve desiccant placed in said container cavity to achieve regeneration; when the water content of the air flow reaches the standard, the replaced air flow is discharged to the ambient; when the water content of the air flow does not reach the standard, the replaced air flow is introduced into another said drying vessel through said air flow bi-directional valve for reuse.

2. A regeneration device of a carbon-containing molecular desiccant according to claim 1, characterized in that: said water content detector and said one-way valves are both two, and said drying vessels are two; two said one-way valves are in parallel communication with two said water content detector ports away from said drying vessels.

3. The regeneration device of carbon molecule desiccant according to claim 1, characterized in that: further comprising a plurality of one-way throttling valves, one part of said one-way throttling valves being in communication between said air flow heater and said air flow control assembly, another part of said one-way throttling valves being in communication between said air flow control assembly and said drying vessel, and another part of said one-way throttling valves being arranged at the air outlet of said drying vessel.

4. A regeneration device of a carbon-containing molecular desiccant according to any one of claims 1 to 3, characterized in that: further comprising a plurality of communication devices, four electronic valves in said air flow control assembly are a first electronic switch valve, a second electronic switch valve, a third electronic switch valve and a fourth electronic switch valve, said first electronic switch valve being in series communication with said second electronic switch valve through a pipe and a communication device, said third electronic switch valve being in series communication with said fourth electronic switch valve through another pipe and a communication device, said first electronic switch valve being in parallel communication with said third electronic switch valve through another pipe and a communication device, and said second electronic switch valve being in parallel communication with said fourth electronic switch valve through another pipe and a communication device. The first electronic switch valve and the second electronic switch valve are connected to the airflow heater outlet end through another pipeline, a communicating vessel, wherein one of the air inlet of the drying container is connected to the communicating vessel between the first electronic switch valve and the second electronic switch valve through another pipeline, and the air inlet of the other drying container is connected to the communicating vessel between the third electronic switch valve and the fourth electronic switch valve through another pipeline, and the fourth electronic switch valve extends to the outside through another pipeline.

5. A carbon-containing molecular desiccant regeneration device according to any one of claims 1-3, characterized in that: The air filter comprises a longitudinal cylinder with a filter embedded therein and a T-shaped flow cavity cylinder, the air filter air inlet part is made by a longitudinal cylinder side wall perforation process, and the air filter air outlet part is made by a T-shaped flow cavity cylinder top plane downward perforation process.

6. A regeneration device of carbon-containing molecular desiccant according to any one of claims 1-3, characterized in that: The drying container is made of aluminum alloy by integral injection molding, and the pipeline is made of stainless steel.

7. A regeneration method applied to a regeneration device of a carbon molecule-containing desiccant according to any one of claims 1-6, characterized in that: The method comprises the following steps: Step S1, start the air blower, the air filter and the refrigerator, and the airflow heater is in the closed state, so that the outside air flow is filtered and purified and then cooled by the refrigerator; Step S2, control the air flow control assembly, and the air flow obtained in step S1 selectively enters the contact with the carbon-containing molecular desiccant placed in the drying container after passing through the pipeline and the air flow control assembly; Step S3, close the refrigerator, and start the airflow heater and the air flow control assembly, so that the heated air flow selectively enters the contact with the carbon-containing molecular desiccant placed in the drying container for regeneration, that is, the process is completed.

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