Activated carbon regeneration device and gas water heater

Abstract

The utility model relates to the field of activated carbon. The utility model discloses an activated carbon regeneration device and a gas water heater. The regeneration device comprises microwave heating equipment, an activated carbon filter material, a shell and activation equipment, the activated carbon filter material is installed in the shell, the two ends of the activated carbon filter material abut against the inner wall of the shell, an annular water inlet cavity is formed between the activated carbon filter material and the shell, a water inlet of the shell is communicated with the annular water inlet cavity, a hollow water outlet cavity is formed in the activated carbon filter material, and a water outlet of the shell is communicated with the hollow water outlet cavity; the microwave heating equipment comprises a microwave generator, and a wave guide tube of the microwave generator penetrates through the wall surface of the shell and extends into the shell; an air inlet is formed in the lower side of the shell, the activation equipment comprises a first fan and an activated gas containing cavity, and the first fan communicates with the shell through the air inlet and is used for blowing activated gas into the shell from the activated gas containing cavity. By adopting the method, the activity of the activated carbon can be recovered, and the activated carbon can be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon, in particular to an activated carbon regeneration device and a gas water heater. Background Art

[0002] At present, chlorine is widely used in tap water disinfection. It is cheap and effective. In order to ensure the disinfection effect of tap water during the transmission process, a certain amount of residual chlorine must be retained in the tap water at the end of the pipe network. Long-term exposure to high concentrations of residual chlorine will cause allergic itching in the human body. At the same time, residual chlorine combined with organic humus will produce carcinogens such as chloroform, which is harmful to the human body. Therefore, it is necessary to remove residual chlorine in tap water.

[0003] In the prior art, activated carbon filter materials are often used to adsorb residual chlorine, thereby removing residual chlorine. Activated carbon filter materials are effective in removing residual chlorine, but the service life of activated carbon filter materials is short, and the activated carbon filter materials need to be replaced frequently, which is cumbersome and costly. Utility Model Content

[0004] Based on this, it is necessary to provide an activated carbon regeneration device and a gas water heater to address the above technical problems.

[0005] In a first aspect, an activated carbon regeneration device is provided, the regeneration device comprising a microwave heating device, an activated carbon filter material, a housing and an activation device;

[0006] The activated carbon filter material is installed inside the shell, the two ends of the activated carbon filter material abut against the inner wall of the shell, an annular water inlet cavity is formed between the activated carbon filter material and the shell, the water inlet of the shell is connected to the annular water inlet cavity, the activated carbon filter material has a hollow water outlet cavity inside, and the water outlet of the shell is connected to the hollow water outlet cavity;

[0007] The microwave heating device comprises a microwave generator, the waveguide of the microwave generator penetrates the wall of the shell and extends into the interior of the shell, and the microwave heating device is used to heat the activated carbon filter material;

[0008] An air inlet is provided on the lower side of the shell, and the activation device includes a first fan and an activation gas containing chamber below the first fan. The first fan is connected to the shell through the air inlet and is used to blow activation gas from the activation gas containing chamber into the shell.

[0009] As an optional implementation, the regeneration device further includes an exhaust gas treatment device, and the exhaust gas treatment device includes a second fan and an exhaust gas receiving chamber above the second fan;

[0010] An air outlet is provided on the upper side of the shell, and the exhaust gas treatment device is connected to the shell through the air outlet, so as to extract exhaust gas from the shell into the exhaust gas containing chamber.

[0011] As an optional embodiment, the regeneration device further includes a filter material rotating device;

[0012] The filter material rotating device includes a rotating shaft and an annular protrusion, the rotating shaft is movably connected to one end of the activated carbon filter material through the annular protrusion, the rotating shaft is arranged on the outer wall of the shell, and the other end of the activated carbon filter material abuts against the outer periphery of the water outlet of the shell, and the activated carbon filter material can be controlled to rotate axially by the rotating shaft.

[0013] As an optional embodiment, the microwave heating device also includes a propeller, which is arranged on both sides of the waveguide to form a microwave guide path. The propeller penetrates the wall of the outer shell and extends into the interior of the outer shell, and is used to reflect the microwaves generated by the microwave generator onto the activated carbon filter material through the propeller.

[0014] As an optional implementation, the microwave heating device is arranged on the outer wall of the shell, and the projection of the hollow water outlet cavity along its axial direction on the wall surface of the shell covers the waveguide of the microwave generator.

[0015] As an optional implementation, the water inlet and the water outlet are arranged adjacent to each other and separated by a partition.

[0016] In a second aspect, a gas water heater is provided, the gas water heater comprising the activated carbon regeneration device as described in the first aspect, characterized in that the gas water heater further comprises a controller, a water flow sensing device and a strong polar substance detection device, the controller is respectively connected to the regeneration device, the water flow sensing device and the strong polar substance detection device;

[0017] The highly polar substance detection device, the water flow sensing device and the activated carbon regeneration device are sequentially arranged on the main water path inside the gas water heater;

[0018] The strong polar substance detection device is used to detect the concentration value of the strong polar substance in the tap water to be retrieved, and send the detected concentration value to the controller;

[0019] The water flow sensing device is used to detect the water flow rate flowing through the main waterway and send the water flow rate to the controller;

[0020] The controller is used to determine whether to control the regeneration device to perform an activated regeneration operation of the activated carbon according to the concentration value, the water flow rate and the water flow time, so as to ensure that the activated carbon filter material can continuously filter the tap water to be filtered.

[0021] As an optional implementation, the gas water heater further includes an operation display device, and the controller is connected to the operation display device;

[0022] The operation display device is used for allowing the user to set and display the target water temperature of the gas water heater.

[0023] As an optional implementation, the operation display device includes an activated carbon regeneration function button, which is used to receive a user's instruction to start the regeneration function based on the activated carbon regeneration function button.

[0024] As an optional implementation, the gas water heater further includes a gas control device, and the controller is connected to the gas control device;

[0025] The gas control device is used to receive an opening instruction or a closing instruction from the controller to control the on and off of the gas in the gas water heater.

[0026] The utility model provides an activated carbon regeneration device and a gas water heater. The technical solution provided by the embodiments of the utility model brings at least the following beneficial effects: the activated carbon filter material is installed inside the shell, the two ends of the activated carbon filter material are abutted against the inner wall of the shell, an annular water inlet cavity is formed between the activated carbon filter material and the shell, the water inlet of the shell is connected with the annular water inlet cavity, the activated carbon filter material has a hollow water outlet cavity inside, and the water outlet of the shell is connected with the hollow water outlet cavity; the microwave heating device includes a microwave generator, the waveguide of the microwave generator passes through the wall of the shell and extends into the interior of the shell, and the microwave heating device is used to heat the activated carbon filter material; an air inlet is provided on the lower side of the shell, and the activation device includes a first fan and an activation gas containing cavity below the first fan, the first fan is connected with the shell through the air inlet, and is used to blow activation gas from the activation gas containing cavity into the shell. In this way, microwaves are radiated to the activated carbon filter material in a direction through the microwave generator. Under the action of microwaves, the highly polar substances adsorbed by the activated carbon filter material will collide and rub, generate high heat, and the highly polar substances will volatilize or carbonize. The activation device blows activation gas into the shell to clean the carbonized impurities generated in the microporous structure of the activated carbon filter material and restore the activity of the activated carbon. In this way, the activity of the activated carbon filter material is regenerated, and the highly polar substances in the tap water to be filtered can be re-adsorbed and filtered. Through the activated carbon regeneration device, the activity of the activated carbon is regenerated, and the service life of the activated carbon is extended.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments 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.

[0029] Figure 1 A schematic diagram of the structure of an activated carbon regeneration device provided in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the structure of a gas water heater provided in an embodiment of the utility model;

[0031] Figure 3 A flow chart of a method for regenerating activated carbon provided in an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the relationship between the amount of remaining filterable strong polar substances and the amount of filtered strong polar substances provided in an embodiment of the utility model.

[0033] The reference numerals are described as follows:

[0034] 1. Regeneration device; 11. Microwave heating device; 111. Microwave generator; 112. Propeller; 1111. Waveguide; 12. Activated carbon filter material; 13. Housing; 14. Activation device; 141. First fan; 142. Activated gas containing chamber; 15. Waste gas treatment device; 151. Second fan; 152. Waste gas containing chamber; 16. Filter material rotating device; 161. Rotating shaft; 162. Ring protrusion; 2. Controller; 3. Water flow sensing device; 4. Strong polar substance detection device; 5. Operation display device; 51. Activated carbon regeneration function button; 6. Gas control device. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application and are not used to limit the utility model.

[0036] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0037] Figure 1 The schematic diagram of the structure of an activated carbon regeneration device provided in the embodiment of the utility model. Figure 1 As shown, the regeneration device 1 includes a microwave heating device 11, an activated carbon filter material 12, a housing 13 and an activation device 14.

[0038] The activated carbon filter material 12 is installed inside the shell 13, and the two ends of the activated carbon filter material 12 are in contact with the inner wall of the shell 13, and an annular water inlet cavity is formed between the activated carbon filter material 12 and the shell 13, and the water inlet of the shell 13 is connected with the annular water inlet cavity. The activated carbon filter material 12 has a hollow water outlet cavity inside, and the water outlet of the shell 13 is connected with the hollow water outlet cavity. Among them, the activated carbon filter material 12 can be an annular filter material, so an annular water inlet cavity will be formed between the activated carbon filter material 12 and the shell 13. The tap water to be filtered enters the annular water inlet cavity through the water inlet, and then in the annular water inlet cavity, it penetrates into the hollow water outlet cavity of the activated carbon filter material 12 through the activated carbon filter material 12, and then flows out from the water outlet of the shell 13, so as to realize the adsorption filtration of the tap water to be filtered, and ensure that all the tap water to be filtered can flow out only after passing through the activated carbon filter material 12.

[0039] Furthermore, the water inlet and the water outlet can be arranged adjacent to each other and separated by a partition to avoid mixing of the tap water to be filtered and the filtered tap water.

[0040] The microwave heating device 11 includes a microwave generator 111, and a waveguide 1111 of the microwave generator 111 penetrates the wall of the shell 13 and extends into the interior of the shell 13. The microwave heating device 11 is used to heat the activated carbon filter material 12. The microwave heating device 11 is used to emit microwaves into the annular water inlet cavity, so that the strong polar substances adsorbed by the activated carbon filter material 12 after filtering the tap water to be filtered generate high heat under the action of microwaves, and volatilize or carbonize. Among them, the microwave heating device 11 includes a microwave generator, and microwaves are emitted by the microwave generator 111. Under the action of microwaves, the strong polar substances adsorbed by the activated carbon filter material 12 will collide and rub, generating high heat. The activated carbon filter material 12 is heated, and in the heated state, the strong polar substances adsorbed by the activated carbon filter material 12 will volatilize or carbonize, thereby regenerating the activity of the activated carbon filter material 12, and it can be used again to re-adsorb and filter the strong polar substances in the tap water to be filtered. Among them, the strong polar substances can be residual chlorine, heavy metals or harmful organic matter.

[0041] Furthermore, the microwave heating device 11 further includes a propeller 112, which is arranged on both sides of the waveguide 1111 to form a microwave guide path, and the propeller 112 penetrates the wall of the housing 13 and extends into the interior of the housing 13, and is used to reflect the microwaves generated by the microwave generator 111 to the activated carbon filter material 12 through the propeller 112. The propeller 112 is arranged on both sides of the waveguide 1111, and the microwave guide path formed serves as a guide device, so that the microwaves generated by the microwave generator 111 can be radiated to the activated carbon filter material 12 along the microwave guide path.

[0042] Furthermore, the microwave heating device 11 is arranged on the outer wall of the housing 13. The projection of the hollow water outlet cavity along its axial direction on the wall surface of the housing 13 covers the waveguide 1111 of the microwave generator 111. In this way, the waveguide 1111 can make the microwaves more fully projected onto the activated carbon filter material 12.

[0043] An air inlet is provided on the lower side of the housing 13, and the activation device 14 includes a first fan 141 and an activation gas containing chamber 142 below the first fan 141. The first fan 141 is connected to the housing 13 through the air inlet, and is used to blow activation gas from the activation gas containing chamber 142 into the housing 13 to clean up the carbonized impurities generated in the microporous structure of the activated carbon filter material 12 and restore the activity of the activated carbon. The active gas can be water vapor, carbon dioxide or air. After the highly polar substances adsorbed by the activated carbon filter material 12 are carbonized under the action of microwaves, the carbonized impurities need to be cleaned before the activated carbon filter material 12 can be put into use again. Therefore, the first fan 141 is required to blow active gas from the activation gas containing chamber 142 into the cavity of the housing 13 to clean up the carbonized impurities in the microporous structure of the activated carbon filter material 12.

[0044] Furthermore, the regeneration device 1 also includes an exhaust gas treatment device 15 , and the exhaust gas treatment device 15 includes a second fan 151 and an exhaust gas containing chamber 152 above the second fan 151 .

[0045] An air outlet is provided on the upper side of the housing 13, and the exhaust gas treatment device 15 is connected to the housing 13 through the air outlet to extract exhaust gas from the housing 13 into the exhaust gas receiving chamber 152. The exhaust gas contains carbonized impurities generated in the microporous structure of the activated carbon filter material.

[0046] Furthermore, the regeneration device 1 also includes a filter material rotating device 16 .

[0047] The filter material rotating device 16 includes a rotating shaft 161 and an annular protrusion 162. The rotating shaft 161 is movably connected to one end of the activated carbon filter material 12 through the annular protrusion 162. The rotating shaft 161 is arranged on the outer wall of the housing 13. The other end of the activated carbon filter material 12 abuts against the outer periphery of the water outlet of the housing 13. The activated carbon filter material 12 can be controlled to rotate axially by the rotating shaft 161. Among them, the abutment can be to connect one end of the activated carbon filter material 12 to the inner wall of the water outlet side through a ring similar to a bearing. The annular protrusion 162 drives the activated carbon filter material 12 to rotate axially with the rotating shaft 161 of the slender structure as the axis. In this way, during the active regeneration operation, the carbonization of the highly polar substances is more thorough through the rotation of the activated carbon filter material 12, and the carbonized impurities cleaned by the active gas are also more thorough.

[0048] Figure 2 The schematic diagram of the structure of a gas water heater provided by the embodiment of the utility model. The gas water heater comprises Figure 1 The activated carbon regeneration device 1 is shown. The gas water heater also includes a controller 2, a water flow sensing device 3 and a strong polar substance detection device 4, and the controller 2 is connected to the regeneration device 1, the water flow sensing device 3 and the strong polar substance detection device 4 respectively.

[0049] The highly polar substance detection device 4, the water flow sensing device 3 and the activated carbon regeneration device 1 are sequentially arranged on the main water path inside the gas water heater.

[0050] The strong polar substance detection device 4 is used to detect the concentration value of the strong polar substance in the tap water to be filtered, and send the detected concentration value to the controller 2.

[0051] The water flow sensing device 3 is used to detect the water flow through the main waterway and send the water flow to the controller 2. The water flow sensing device 3 may be a water flow sensor, which detects the water flow.

[0052] The controller 2 is used to determine whether to control the regeneration device 1 to perform the activated carbon activation regeneration operation according to the concentration value, water flow rate and water flow time, so as to ensure that the activated carbon filter material 12 can continuously filter the tap water to be filtered. The specific steps of the controller 2 determining whether the activated carbon activation regeneration operation needs to be performed according to the concentration value, water flow rate and water flow time are described in detail in the regeneration method below, and will not be repeated here.

[0053] Furthermore, the gas water heater also includes an operation display device 5 , and the controller 2 is connected to the operation display device 5 .

[0054] The operation display device 5 is used for allowing the user to set and display the target water temperature of the gas water heater.

[0055] Furthermore, the operation display device 5 includes an activated carbon regeneration function button 51 , which is used to receive a user's instruction to start the regeneration function based on the activated carbon regeneration function button 51 .

[0056] Furthermore, the gas water heater also includes a gas control device 6 , and the controller 2 is connected to the gas control device 6 .

[0057] The gas control device 6 is used to receive the opening or closing instruction of the controller 2 to control the on and off of the gas in the gas water heater. The gas control device 6 includes a gas control valve installed in the gas supply passage in the gas water heater to control the on and off of the gas and the ignition operation.

[0058] The following will describe in detail a method for regenerating activated carbon provided in an embodiment of the present application in combination with a specific implementation method. Figure 3 A flow chart of a method for regenerating activated carbon provided by an embodiment of the utility model is as follows: Figure 3 As shown, the specific steps are as follows:

[0059] Step 301, receiving a start instruction of the activated carbon regeneration function, obtaining the current concentration value of highly polar substances in the tap water to be filtered in the current regeneration cycle, the water flow rate and water flow time of the main water channel of the gas water heater.

[0060] In practice, chlorine is widely used in tap water disinfection, which is cheap and effective. In order to ensure the disinfection effect of tap water during the transmission process, the tap water at the end of the pipe network still needs to retain a certain amount of residual chlorine. Long-term contact with a high concentration of residual chlorine will cause allergic itching in the human body. At the same time, residual chlorine combined with organic humus will produce carcinogens such as chloroform, which will cause harm to the human body. Therefore, it is necessary to remove the residual chlorine in tap water. In the prior art, activated carbon filter materials are commonly used to adsorb residual chlorine, thereby removing residual chlorine. Activated carbon filter materials have a good effect on removing residual chlorine, but the service life of activated carbon filter materials is short, and activated carbon filter materials need to be replaced frequently, which is cumbersome and costly. The present application thinks that the saturated activated carbon can be heated by microwave to remove the adsorbed residual chlorine, so that the adsorption activity of activated carbon is regenerated, the activated carbon is reused, and the service life of activated carbon is extended. There is a calibrated amount of filterable strong polar substances in the activated carbon filter material, which indicates the initial filtering capacity of the activated carbon filter material. The calibrated amount of filterable strong polar substances is related to the specifications and surface area of ​​the activated carbon filter material. That is to say, if the specifications and surface area of ​​the activated carbon filter material are fixed, then the calibrated filterable strong polar substance mass is also fixed. The filtering capacity of the activated carbon filter material from the initial filterable strong polar substance mass to the preset filterable strong polar substance mass threshold is taken as a regeneration cycle. In a regeneration cycle, it is necessary to determine the remaining filterable strong polar substance mass of the activated carbon filter material in the current regeneration cycle. When the remaining filterable strong polar substance mass is less than the preset filterable strong polar substance mass threshold, the activated carbon regeneration operation is performed. To determine the amount of filtered strong polar substances of the activated carbon filter material, it is necessary to first obtain the current strong polar substance concentration value of the tap water to be filtered in the current regeneration cycle, the water flow rate and water flow duration of the main water channel of the gas water heater, and the subsequent steps can determine the amount of filtered strong polar substances based on the current strong polar substance concentration value, the water flow rate and water flow duration of the main water channel of the gas water heater. Among them, the current strong polar substance concentration value can be detected by extracting part of the water flow of the tap water to be filtered, adding a concentration test reagent of the strong polar substance, and detecting the concentration of the strong polar substance in the water flow. After the test is completed, the post-test liquid will be discharged from the opening at the lower end.

[0061] Step 302, determining the amount of filtered strong polar substances that have been filtered out by the activated carbon filter material in the current regeneration cycle according to the current strong polar substance concentration value, water flow rate and water flow time.

[0062] In implementation, if you want to determine the amount of strongly polar substances that have been filtered by the activated carbon filter material, you can determine the amount of strongly polar substances in the tap water to be filtered that has been filtered out during the current regeneration cycle, that is, the amount of strongly polar substances that have been filtered out by the activated carbon filter material. Therefore, first determine the amount of strongly polar substances that have been filtered out of the tap water to be filtered. According to the current concentration value of strongly polar substances, water flow rate and water flow time, the amount of strongly polar substances that have been filtered out of the tap water to be filtered can be determined. Therefore, the amount of strongly polar substances that have been filtered out by the activated carbon filter material in the current regeneration cycle can be determined based on the current concentration value of strongly polar substances in the tap water to be filtered in the current regeneration cycle, the water flow rate and water flow time of the main water channel of the gas water heater.

[0063] The specific steps of executing step 302 are: determining the product of the current strong polar substance concentration value, the water flow rate and the water flow time as the amount of filtered strong polar substances that have been filtered out by the activated carbon filter material in the current regeneration cycle.

[0064] In implementation, the amount of strongly polar substances that have been filtered out of the tap water to be filtered can be determined based on the current concentration value of strongly polar substances, water flow rate, and water flow time. During the water flow time, the concentration of strongly polar substances contained in the circulating water flow is the current concentration value of strongly polar substances. Therefore, the product of the current concentration value of strongly polar substances, water flow rate, and water flow time is determined as the amount of strongly polar substances that have been filtered out of the tap water to be filtered, that is, the amount of filtered strongly polar substances that have been filtered out by the activated carbon filter material during the current regeneration cycle.

[0065] As an optional implementation, according to the current concentration value of the highly polar substance, the water flow rate and the water flow time, the formula for determining the amount of the filtered highly polar substance that has been filtered out by the activated carbon filter material in the current regeneration cycle is:

[0066] M 已滤 =L 主 *C 样 *t

[0067] Among them, M 已滤 Indicates the amount of highly polar substances that have been filtered, L 主 Indicates water flow, C 样 It indicates the current concentration value of highly polar substances, and t indicates the water flow time.

[0068] Step 303, determining the remaining filterable strongly polar substance amount in the current regeneration cycle of the activated carbon filter material according to the initial filterable strongly polar substance amount and the filtered strongly polar substance amount in the current regeneration cycle of the activated carbon filter material, and updating the initial filterable strongly polar substance amount to the remaining filterable strongly polar substance amount.

[0069] In implementation, to determine whether the current regeneration cycle of the activated carbon filter material has ended, it is necessary to determine the amount of remaining filterable strong polar substances in the activated carbon filter material in the current regeneration cycle. If the amount of remaining filterable strong polar substances in the current regeneration cycle is small, it means that the current regeneration cycle is about to end, and an active regeneration operation is required before entering the next regeneration cycle. After determining the amount of strong polar substances that have been filtered by the activated carbon filter material in the current regeneration cycle, the amount of remaining filterable strong polar substances in the current regeneration cycle of the activated filter material can be determined based on the initial amount of filterable strong polar substances and the amount of filtered strong polar substances in the current regeneration cycle. Because, in the current regeneration cycle, when the amount of remaining filterable strong polar substances is determined again, the filtering capacity of the activated carbon filter material is filtered again based on the amount of remaining filterable strong polar substances after the previous filtration, so it is necessary to update the initial amount of filterable strong polar substances to the remaining amount of filterable strong polar substances.

[0070] The specific execution step of determining the remaining filterable strongly polar substance mass in the current regeneration cycle of the activated carbon filter material based on the initial filterable strongly polar substance mass and the filtered strongly polar substance mass in the current regeneration cycle of the activated carbon filter material is as follows: the difference between the initial filterable strongly polar substance mass and the filtered strongly polar substance mass in the current regeneration cycle is determined as the remaining filterable strongly polar substance mass in the current regeneration cycle.

[0071] In implementation, the difference between the initial filterable strongly polar substance amount and the filtered strongly polar substance amount of the active filter material in the current regeneration cycle is determined as the remaining filterable strongly polar substance amount of the active filter material in the current regeneration cycle.

[0072] As an optional embodiment, according to the initial filterable strong polar substance mass and the filtered strong polar substance mass in the current regeneration cycle of the activated carbon filter material, the formula for determining the remaining filterable strong polar substance mass in the current regeneration cycle of the activated filter material is:

[0073] M 剩余可滤 =M 初始 -M 已滤

[0074] Among them, M 剩余可滤 Indicates the amount of residual filterable highly polar substances, M 初始 Indicates the initial filterable amount of highly polar substances, M 已滤 Indicates the amount of highly polar substances that have been filtered.

[0075] Figure 4 A schematic diagram of the relationship between the amount of remaining filterable strong polar substances and the amount of filtered strong polar substances provided by the embodiment of the utility model. Figure 4 As shown in the figure, the amount of remaining filterable strongly polar substances is negatively correlated with the amount of filtered strongly polar substances. As the amount of filtered strongly polar substances increases, the amount of remaining filterable strongly polar substances in the activated carbon filter material decreases.

[0076] Step 304, if the remaining filterable strongly polar substance mass in the current regeneration cycle is less than the preset filterable strongly polar substance mass threshold, the microwave generator is controlled to emit microwaves, and the activated carbon filter material is controlled to rotate through the rotating shaft, and the first fan is controlled to operate to extract activated gas into the cavity of the shell where the activated carbon filter material is located, and enter the next regeneration cycle.

[0077] In implementation, the remaining filterable strongly polar substances in the current regeneration cycle are compared with the pre-set filterable strongly polar substances mass threshold. If the remaining filterable strongly polar substances in the current regeneration cycle are less than the pre-set filterable strongly polar substances mass threshold, it means that the filtering capacity of the activated carbon filter material in the current regeneration cycle is low, and the activated carbon filter material reaches the filtering saturation state. It is necessary to regenerate the adsorption activity of the activated carbon, otherwise the strongly polar substances will not be filtered cleanly when filtering the tap water to be filtered. The regeneration operation of the adsorption activity of the activated carbon is to control the microwave generator to emit microwaves, control the activated carbon filter material to rotate through the rotating shaft, and control the first fan to operate to extract the activated gas into the cavity of the shell where the activated carbon filter material is located. The charged active gas will clean the carbonized impurities in the microporous structure of the activated carbon and restore the activity of the activated carbon. Through the microwave directional radiation of the activated carbon filter material, the strongly polar substances adsorbed by the activated carbon filter material collide and rub to generate high heat, which then volatilizes or carbonizes to restore the activity of the activated carbon. Then, at this time, the activity of the activated carbon filter material is restored, and it can continue to filter the tap water to be filtered, and enter the next regeneration cycle. Therefore, if the remaining filterable strong polar substance mass in the current regeneration cycle is less than the preset filterable strong polar substance mass threshold, the microwave generator is controlled to emit microwaves, and the activated carbon filter material is controlled to rotate through the rotating shaft, and the first fan is controlled to operate to extract activated gas into the cavity of the shell where the activated carbon filter material is located, and enter the next regeneration cycle.

[0078] Furthermore, it is also necessary to control and close the water inlet, water outlet and gas control valve of the gas water heater, and suspend the user from using the gas water heater during the stage of regeneration of the activated carbon.

[0079] Furthermore, the activated carbon filter material draws activated gas into the cavity of the housing where the activated carbon filter material is located when the first fan is running. After the activated gas is filled in to clean the carbonized impurities in the microporous structure of the activated carbon, the waste gas containing the carbonized impurities needs to be discharged, as follows:

[0080] After a preset regeneration time, the first fan is controlled to be turned off, and the second fan is controlled to extract the exhaust gas in the cavity to discharge the exhaust gas in the cavity of the shell.

[0081] In implementation, after the preset regeneration time, the first fan is controlled to be turned off, and the second fan is controlled to extract the exhaust gas in the cavity to discharge the exhaust gas in the cavity of the shell, and the exhaust gas is extracted from the shell into the exhaust gas receiving chamber. The preset regeneration time can be set according to actual conditions and is not limited here.

[0082] Further, the water inlet and outlet of the gas water heater are controlled to be opened, that is, after the activation regeneration operation of the activated carbon is completed, the water inlet and outlet of the gas water heater need to be controlled to be opened so that the user can use the gas water heater normally for showering.

[0083] Furthermore, although activated carbon filter materials can restore the activity of activated carbon, each regeneration of activated carbon will cause the activity of activated carbon to decay. Therefore, it is necessary to determine the initial filterable amount of highly polar substances in the regeneration cycle after each regeneration of activated carbon filter materials during the regeneration process of activated carbon. Activated carbon filter materials have a preset regeneration threshold. If the regeneration threshold is exceeded, it is considered that the firepower of the activated carbon filter material cannot be restored, and the activated carbon filter material needs to be replaced. The specific steps are as follows:

[0084] Step 1: After a preset exhaust time, obtain the number of regeneration times of the activated carbon filter material.

[0085] In practice, each regeneration of the activated carbon will cause the activity of the activated carbon to decay. During the entire process of the activated carbon filter material having adsorption and filtration capabilities, if the number of regenerations of the activated carbon filter material reaches the limit, the adsorption and filtration capabilities will decrease and will not be able to meet the requirements of filtering highly polar substances in the tap water to be filtered. Therefore, after the preset exhaust time, the number of regenerations of the activated carbon filter material is obtained, and the subsequent steps can determine the initial filterable amount of highly polar substances of the activated carbon filter material after the adsorption activity decays based on the number of regenerations, and can also determine whether the activated carbon filter material has completely lost its activity and needs to be replaced.

[0086] Step 2: If the number of regenerations is less than the preset regeneration threshold, the product of the number of regenerations, the calibrated filterable strongly polar substance mass of the pre-stored activated carbon filter material, and the preset activated carbon regeneration attenuation coefficient is determined as the initial filterable strongly polar substance mass of the next regeneration cycle of the activated carbon filter material.

[0087] In implementation, the obtained number of regenerations is first compared with the preset regeneration number threshold. If the number of regenerations is less than the preset regeneration number threshold, it means that the filtration times of the activated carbon filter material have not reached the limit, and the activity of the adsorption filtration has not been completely inactivated. Since each active regeneration of the activated carbon filter material will cause the activity of the activated carbon to decay. Therefore, it is necessary to determine the initial filterable amount of highly polar substances in the regeneration cycle after each regeneration of the activated carbon filter material during the regeneration process of the activated carbon filter material. The product of the number of regenerations, the calibrated filterable amount of highly polar substances of the pre-stored activated carbon filter material, and the preset activated carbon regeneration attenuation coefficient can be determined as the initial filterable amount of highly polar substances in the next regeneration cycle of the activated carbon filter material.

[0088] Step three: if the number of regenerations is equal to the preset regeneration threshold, the gas water heater enters the shower standby mode and sounds an alarm to prompt the user to replace the activated carbon filter material.

[0089] In practice, the obtained regeneration times are compared with the preset regeneration times threshold. If the regeneration times are equal to the preset regeneration times threshold, it means that the filtration times of the activated carbon filter material have reached the limit, and the activity of adsorption filtration is not enough to support the activated carbon filter material to perform adsorption filtration of highly polar substances. At this time, the gas water heater enters the shower standby mode and issues an alarm to remind the user to replace the activated carbon filter material.

[0090] Furthermore, if the remaining amount of filterable highly polar substances in the current regeneration cycle is greater than or equal to a preset filterable highly polar substances amount threshold, the gas water heater enters the shower mode.

[0091] In implementation, the remaining filterable strongly polar substance amount in the current regeneration cycle is compared with a preset filterable strongly polar substance amount threshold. If the remaining filterable strongly polar substance amount in the current regeneration cycle is greater than or equal to the preset filterable strongly polar substance amount threshold, the gas water heater enters the shower mode. The shower mode is to start the ignition and record the water flow of the main waterway.

[0092] Furthermore, if the water flow rate is greater than a preset water flow rate threshold, the gas of the gas control device is controlled to be turned on, and an ignition operation is performed, and the gas water heater enters the shower mode.

[0093] During implementation, the water flow in the main water channel is detected, and the detected water flow is compared with the preset water flow threshold. If the water flow is greater than the preset water flow threshold, it means that the user is using a gas water heater. In this case, it is necessary to control the gas conduction of the gas control device and perform the ignition operation so that the gas water heater enters the shower mode.

[0094] Furthermore, if the water flow rate is less than or equal to the preset water flow rate threshold, the gas water heater is not used by the user, and the gas water heater is in the shower standby mode.

[0095] The embodiment of the utility model provides a method for regenerating activated carbon, wherein microwaves are radiated to the activated carbon filter material in a direction by a microwave generator. Under the action of microwaves, the highly polar substances adsorbed by the activated carbon filter material will collide and rub, generate high heat, and the highly polar substances will volatilize or carbonize. The activation device blows activation gas into the outer shell to clean the carbonized impurities generated in the microporous structure of the activated carbon filter material and restore the activity of the activated carbon. Thereby, the activity of the activated carbon filter material is regenerated, and the highly polar substances in the tap water to be filtered can be re-adsorbed and filtered. The activated carbon regeneration device regenerates the activity of the activated carbon and prolongs the service life of the activated carbon.

[0096] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the utility model can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0097] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0098] It should also be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data for analysis, etc.) involved in the present invention are all information and data authorized by the user or fully authorized by all parties.

[0099] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0100] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An activated carbon regeneration device, characterized in that: The regeneration device (1) comprises a microwave heating device (11), an activated carbon filter material (12), a housing (13) and an activation device (14); The activated carbon filter material (12) is installed inside the shell (13), the two ends of the activated carbon filter material (12) are in contact with the inner wall of the shell (13), an annular water inlet cavity is formed between the activated carbon filter material (12) and the shell (13), the water inlet of the shell (13) is in communication with the annular water inlet cavity, the activated carbon filter material (12) has a hollow water outlet cavity inside, and the water outlet of the shell (13) is in communication with the hollow water outlet cavity; The microwave heating device (11) comprises a microwave generator (111), a waveguide (1111) of the microwave generator (111) penetrates the wall surface of the outer shell (13) and extends into the interior of the outer shell (13), and the microwave heating device (11) is used to heat the activated carbon filter material (12); An air inlet is provided on the lower side of the outer shell (13), and the activation device (14) includes a first fan (141) and an activation gas containing chamber (142) below the first fan (141). The first fan (141) is connected to the outer shell (13) through the air inlet, and is used to blow activation gas from the activation gas containing chamber (142) into the outer shell (13).

2. The regeneration device according to claim 1, characterized in that: The regeneration device (1) further comprises an exhaust gas treatment device (15), wherein the exhaust gas treatment device (15) comprises a second fan (151) and an exhaust gas receiving chamber (152) above the second fan (151); An air outlet is provided on the upper side of the shell (13), and the exhaust gas treatment device (15) is connected to the shell (13) through the air outlet, and is used to extract exhaust gas from the shell (13) into the exhaust gas receiving chamber (152).

3. The regeneration device according to claim 1, characterized in that: The regeneration device (1) further comprises a filter material rotating device (16); The filter material rotating device (16) comprises a rotating shaft (161) and an annular protrusion (162); the rotating shaft (161) is movably connected to one end of the activated carbon filter material (12) via the annular protrusion (162); the rotating shaft (161) is arranged on the outer wall of the housing (13); the other end of the activated carbon filter material (12) abuts against the outer periphery of the water outlet of the housing (13); and the activated carbon filter material (12) can be controlled to rotate axially via the rotating shaft (161).

4. The regeneration device according to claim 1, characterized in that: The microwave heating device (11) further comprises a propeller (112), wherein the propeller (112) is arranged on both sides of the waveguide (1111) to form a microwave guide path, and the propeller (112) penetrates the wall surface of the outer shell (13) and extends into the interior of the outer shell (13), and is used to reflect the microwaves generated by the microwave generator (111) onto the activated carbon filter material (12) through the propeller (112).

5. The regeneration device according to claim 1, characterized in that: The microwave heating device (11) is arranged on the outer wall of the outer shell (13), and the projection of the hollow water outlet cavity along its axial direction on the wall surface of the outer shell (13) covers the waveguide (1111) of the microwave generator (111).

6. The regeneration device according to claim 1, characterized in that: The water inlet and the water outlet are arranged adjacent to each other and separated by a partition.

7. A gas water heater, characterized in that: The gas water heater comprises an activated carbon regeneration device (1) as claimed in any one of claims 1 to 6, and further comprises a controller (2), a water flow sensing device (3) and a strong polar substance detection device (4), wherein the controller (2) is connected to the regeneration device (1), the water flow sensing device (3) and the strong polar substance detection device (4) respectively; The highly polar substance detection device (4), the water flow sensing device (3) and the activated carbon regeneration device (1) are sequentially arranged on the main water path inside the gas water heater; The highly polar substance detection device (4) is used to detect the concentration value of the highly polar substance in the tap water to be filtered, and send the detected concentration value to the controller (2); The water flow sensing device (3) is used to detect the water flow rate flowing through the main water channel and send the water flow rate to the controller (2); The controller (2) is used to determine whether to control the regeneration device (1) to perform an activated carbon regeneration operation based on the concentration value, the water flow rate and the water flow time, so as to ensure that the activated carbon filter material (12) can continuously filter the tap water to be filtered.

8. The gas water heater according to claim 7, characterized in that: The gas water heater further comprises an operation display device (5), and the controller (2) is connected to the operation display device (5); The operation display device (5) is used for allowing the user to set and display the target water temperature of the gas water heater.

9. The gas water heater according to claim 8, characterized in that: The operation display device (5) comprises an activated carbon regeneration function button (51) for receiving a user's instruction to start a regeneration function based on the activated carbon regeneration function button (51).

10. The gas water heater according to claim 7, characterized in that: The gas water heater further comprises a gas control device (6), and the controller (2) is connected to the gas control device (6); The gas control device (6) is used to receive an on command or a off command from the controller (2) to control the on and off of the gas in the gas water heater.

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