CN111238026A - Multi-stage water purification integrated device, zero-cold-water gas water heater and control method thereof - Google Patents
Multi-stage water purification integrated device, zero-cold-water gas water heater and control method thereof Download PDFInfo
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- CN111238026A CN111238026A CN202010128906.7A CN202010128906A CN111238026A CN 111238026 A CN111238026 A CN 111238026A CN 202010128906 A CN202010128906 A CN 202010128906A CN 111238026 A CN111238026 A CN 111238026A
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- water purification
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- cold
- filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 436
- 238000000746 purification Methods 0.000 title claims abstract description 144
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000008213 purified water Substances 0.000 claims abstract description 38
- 238000011045 prefiltration Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 235000020679 tap water Nutrition 0.000 claims abstract description 13
- 239000008399 tap water Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 5
- 239000002455 scale inhibitor Substances 0.000 claims description 5
- 238000000108 ultra-filtration Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000020680 filtered tap water Nutrition 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- -1 KDF Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention discloses a multi-stage water purification integrated device, a zero-cold-water gas water heater and a control method thereof, wherein the multi-stage water purification integrated device comprises a pre-filter assembly, a water purification filter assembly, a water inlet temperature detection assembly, a water purification solenoid valve and a control assembly, the water inlet temperature detection assembly, the pre-filter assembly, the water purification solenoid valve and the water purification filter assembly are sequentially arranged between a water inlet end and a water outlet end of tap water, and the water inlet temperature detection assembly and the water purification solenoid valve are electrically connected with the control assembly. According to the multi-stage water purification integrated device, the pre-filter assembly and the water purification filter assembly are integrated, and the switch of the water purification electromagnetic valve is controlled through temperature, so that high-temperature water is effectively prevented from flowing into the water purification filter body and damaging a water purification filter element; meanwhile, the installation space is saved, the installation of the pipe arrangement is simplified, and the bath water and the kitchen purified water can be output; the public leading filter assembly, the filter fineness is higher, and the flow of leading to water is big, is difficult for blockking up, and is convenient for wash.
Description
Technical Field
The invention belongs to the technical field of zero-cold-water gas water heaters, and particularly relates to a multi-stage water purification integrated device, a zero-cold-water gas water heater and a control method thereof.
Background
At present, water purification products in the market generally do not resist high temperature (the water inlet temperature is lower than 45 ℃), the water storage temperature of a pipeline is often higher than 45 ℃ when a zero-cold water gas water heater is preheated, and if the preheated high-temperature water flows into the water purifier, the valve body, the filter element and the like in the water purifier are easy to damage, especially a POP ultrafiltration membrane. Therefore, the water purifier can only be arranged on the cold water pipe at the front end of the return water pipeline of the zero-cold-water gas water heater, and hot water is prevented from flowing in.
The common zero-cold water gas water heater uses a simple filter screen, has poor filtering effect, is easy to block, and cannot filter heavy metals or reduce water hardness; the zero-cold-water gas water heater and the water purifier occupy more space when being installed separately, and the overall cost is relatively high.
Disclosure of Invention
In order to solve the problems, the invention provides a multi-stage water purification integrated device, which integrates a pre-filter assembly and a water purification filter assembly, and effectively prevents high-temperature water from flowing into a water purification filter body and damaging a water purification filter element by controlling the switch of a water purification electromagnetic valve through temperature; meanwhile, the installation is simplified, the machine purchasing cost is reduced, and the bath water and the kitchen purified water can be output.
Another object of the present invention is to provide a zero cold water gas water heater;
another object of the present invention is to provide a control method for a zero-cold-water gas water heater.
The technical scheme adopted by the invention is as follows:
the utility model provides a multistage water purification integrated device, its includes leading filter subassembly, water purification filter subassembly, the temperature detection subassembly of intaking, water purification solenoid valve and control assembly, the temperature detection subassembly of intaking, leading filter subassembly, water purification solenoid valve and water purification filter subassembly set gradually between the end of intaking and the play water end of running water, the temperature detection subassembly of intaking and water purification solenoid valve all are connected with the control assembly electricity.
Preferably, leading filter assembly includes leading filter body, inlet tube and main water pipe, the end connection of intaking of inlet tube and running water, the running water warp the inlet tube flows into leading filter this internally, the warp leading filter body filters the back through the main water pipe outflow.
Preferably, the water purification filter assembly comprises a water purification filter body, a water purification inlet pipe and a water purification outlet pipe, the water purification inlet pipe is connected with the main water pipe, water filtered by the front filter body flows into the water purification filter body through the water purification inlet pipe, and flows out through the water purification outlet pipe after being filtered by the water purification filter body.
Preferably, the filter material in the prefilter body is a high-temperature-resistant filter screen, the mesh number of the filter screen is 60-100 meshes, high-temperature-resistant water purification particles are added into the filter screen, and the water purification particles are one or more of activated carbon, KDF and a scale inhibitor.
Preferably, the filtering material in the water purifying filter body is one or more of PP cotton, activated carbon and an ultrafiltration membrane.
The other technical scheme of the invention is realized as follows:
the utility model provides a zero cold water gas heater, its includes multistage water purification integrated device, zero cold water gas heater main part, water pump, rivers induction system and cold water pipe, multistage water purification integrated device installs in the lower terminal surface one side of zero cold water gas heater main part, water pump and rivers induction system all install on the main water pipe and equal electric connection control subassembly, the end and the inlet tube at the main water pipe are connected respectively at the both ends of cold water pipe, install built-in check valve on the cold water pipe.
Preferably, the multi-stage water purification device is an externally hung detachable structure.
Preferably, the control assembly comprises a controller and an operation display, the controller is electrically connected with the operation display, and the water inlet temperature detection assembly, the water purification electromagnetic valve, the water pump and the water flow sensing device are electrically connected with the controller.
Preferably, a preheating function key and a water purification overtemperature alarm lamp for starting and quitting the preheating function are arranged on the operation display.
The other technical scheme of the invention is realized as follows:
a control method based on the zero-cold-water gas water heater comprises the following steps:
s1, starting the zero-cold-water gas water heater, and monitoring the water inlet temperature in real time;
s2, will the temperature of intaking in S1 compares with preset water purification temperature threshold, controls the operating condition of water purification solenoid valve according to the comparative result, specifically is:
when the water inlet temperature is lower than a preset purified water temperature threshold value, the controller opens a purified water electromagnetic valve to eliminate the purified water overtemperature alarm;
otherwise, the controller closes the water purification electromagnetic valve and the water purification overtemperature alarms.
Compared with the prior art, the multistage water purification integrated device disclosed by the invention has the advantages that the pre-filter assembly and the water purification filter assembly are integrated, and the switch of the water purification electromagnetic valve is controlled by temperature, so that high-temperature water is effectively prevented from flowing into the water purification filter assembly and damaging a water purification filter element; meanwhile, the installation space is saved, the installation of the pipe arrangement is simplified, and the bath water and the kitchen purified water can be output; the public leading filter assembly, the filter fineness is higher, and the flow of leading to water is big, is difficult for blockking up, and is convenient for wash.
Drawings
Fig. 1 is an overall schematic diagram of a multi-stage water purification integrated device provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a multi-stage water purification integrated device provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a zero-cold-water gas water heater provided in embodiment 2 of the present invention;
fig. 4 is a flowchart of a control method of a zero-cold-water gas water heater according to embodiment 3 of the present invention.
Description of the reference numerals
1-a pre-filter assembly, 11-a pre-filter body, 12-a water inlet pipe, 13-a main water pipe, 2-a water purification filter assembly, 21-a water purification filter body, 22-a water purification water inlet pipe, 23-a water purification water outlet pipe, 3-a water inlet temperature detection assembly, 4-a water purification electromagnetic valve, 5-a control assembly, 6-a zero-cold water gas water heater main body, 7-a water pump, 8-a water flow sensing device, 9-a cold water pipe and 91-a built-in one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment 1 of the invention provides a multi-stage water purification integrated device, which comprises a pre-filter assembly 1, a water purification filter assembly 2, a water inlet temperature detection assembly 3, a water purification solenoid valve 4 and a control assembly 5, wherein the water inlet temperature detection assembly 3, the pre-filter assembly 1, the water purification solenoid valve 4 and the water purification filter assembly 2 are sequentially arranged between a water inlet end and a water outlet end of tap water, and the water inlet temperature detection assembly 3 and the water purification solenoid valve 4 are electrically connected with the control assembly 5, as shown in fig. 1.
Thus, by adopting the structure, the multistage water purification integrated device integrates the front filter assembly 1 and the water purification filter assembly 2, the water inlet temperature is detected by the water inlet temperature detection assembly 3, and the control assembly 5 controls the on-off of the water purification electromagnetic valve 4 according to the water inlet temperature, so that high-temperature water is effectively prevented from flowing into the water purification filter assembly 2 and damaging a water purification filter element; meanwhile, the installation space is saved, the installation of the pipe arrangement is simplified, and the bath water and the kitchen purified water can be output; the public pre-filter assembly 1 has higher filtering precision, large water flow, difficult blockage and convenient cleaning.
As shown in fig. 2, the pre-filter assembly 1 includes a pre-filter body 11, a water inlet pipe 12 and a main water pipe 13, the water inlet pipe 12 is connected to the water inlet end of the tap water, the tap water flows into the pre-filter body 11 through the water inlet pipe 12, and flows out through the main water pipe 13 after being filtered by the pre-filter body 11.
Thus, tap water enters the pre-filter body 11 through the water inlet pipe 12, is filtered by the pre-filter body 11 and then flows out of the main water pipe 13, and the pre-filtered tap water, namely bath water, is obtained and can be used as bath hot water after being heated by the zero-cold water gas water heater.
The water purification filter assembly 2 comprises a water purification filter body 21, a water purification inlet pipe 22 and a water purification outlet pipe 23, the water purification inlet pipe 22 is connected with the main water pipe 13, water filtered by the preposed filter body 11 flows into the water purification filter body 21 through the water purification inlet pipe 22, and flows out through the water purification outlet pipe 23 after being filtered by the water purification filter body 21.
Thus, the tap water firstly enters the pre-filter body 11 through the water inlet pipe 12, is filtered by the pre-filter body 11 to obtain pre-filtered tap water, then enters the water purification filter body 21 through the purified water inlet pipe 22, and flows out of the purified water outlet pipe 23 after being filtered by the water purification filter body 21 to obtain purified water filtered tap water which is used as kitchen purified water.
The filter material in the front filter body 11 is a high-temperature-resistant ultra-dense filter screen, the mesh number of the ultra-dense filter screen is 60-100 meshes, high-temperature-resistant water purification particles are added in the ultra-dense filter screen, and the water purification particles are one or more of activated carbon, KDF and scale inhibitor.
Thus, the filter material of the front filter body 11 is a high-temperature-resistant ultra-dense filter screen (60-100 meshes), micro particles in tap water are isolated, the area of the filter screen is large, the water flow is large, and the filter screen is not easy to block; meanwhile, one or more of high-temperature resistant activated carbon, KDF, scale inhibitor and other water purification particles can be added into the pre-filter body, and the purification effects of purifying smell, absorbing chlorine, removing heavy metals, reducing water hardness and the like can be realized, so that tap water (namely bath water) subjected to pre-filtration can be obtained and can be used as bath hot water after being heated by a zero-cold water gas water heater.
The filtering material in the water purifying filter body 21 is one or more of PP cotton, active carbon and an ultrafiltration membrane.
In this way, the water purifying filter body 21 is made of a single or composite water purifying material such as PP cotton, activated carbon, and an ultrafiltration membrane, so as to output kitchen purified water suitable for a kitchen.
Example 2
As shown in fig. 3, embodiment 2 of the present invention provides a zero-cold water gas water heater, which includes the multi-stage water purification integrated device, a zero-cold water gas water heater main body 6, a water pump 7, a water flow sensing device 8, and a cold water pipe 9, wherein the multi-stage water purification integrated device is installed on one side of the lower end surface of the zero-cold water gas water heater main body 6, the water pump 7 and the water flow sensing device 8 are both installed on a main water pipe 13 and are both electrically connected to a control component 5, both ends of the cold water pipe 9 are respectively connected to the tail end of the main water pipe 13 and a water inlet pipe 12, and a built-in check valve 91 is.
Thus, when the control module 5 starts the preheating operation mode, the control module 5 starts the water pump 7 to drive the hot water pipe (i.e. the hot water pipeline heated by the zero-cold water gas water heater in the main water pipe 13) and the cold water pipe to store water to circularly flow, when the water flow detected by the water flow sensing device 8 is greater than the program start flow, the gas water heater main body 6 is started to ignite and heat the water to circularly flow and store the water, and the hot water flows through the hot water pipe and the cold water pipe 9 and then flows back to the water inlet pipe 12 of the gas water heater main body 6.
When the preheating working mode is used, preheating backwater flows into the water inlet pipe 12 of the water heater again, when the temperature of the backwater detected by the water inlet temperature detection component 3 is higher than the temperature (such as 45 ℃) of the program-set purified water, the control component 5 closes the purified water electromagnetic valve 4, the circulating backwater passes through the front filter body 11 and cannot flow to the purified water filter body 21, the purified water faucet at the position of the purified water outlet pipe 23 is opened at the moment, water cannot flow out, and the situation that the high-temperature backwater flows into the purified water filter body 21 to damage a purified water filter element in the preheating working mode can be. When the water inlet temperature detection component 3 detects that the water return temperature is higher than the program set preheating temperature, the controller turns off the water pump, the water heater main body 6 is flamed out, and the circulating preheating is stopped.
After exiting the preheating working mode, the water stored in the pipeline naturally dissipates heat, and when the water temperature detected by the water inlet temperature detection component 3 is reduced and continuously lower than the programmed water purification temperature (such as 45 ℃), the control component 5 reopens the water purification electromagnetic valve 4, recovers the purified water output, and synchronously eliminates the overtemperature purified water alarm.
In a normal shower standby mode, the temperature of tap water is lower than the programmed water purification temperature (such as 45 ℃), the control component 5 opens the water purification electromagnetic valve 4, at the moment, the water purification faucet is opened, the tap water flows through the water inlet pipe 12 and the pre-filter body 11, after micro-particle impurities in the water are filtered, the tap water flows through the water purification electromagnetic valve 4 to enter the water purification filter body 21, then flows to the water purification faucet from the water purification water outlet pipe 23, and purified water subjected to multi-stage purification and filtration is output.
The multi-stage water purifying device is of an external hanging type detachable structure.
Thus, the multistage water purifying device is designed to be of an externally-hung detachable structure, and particularly, the front filter body 11 and the water purifying filter body 21 are designed to be of externally-hung detachable structures, so that the filter element is convenient to check daily and replace and clean.
The control assembly 5 comprises a controller 51 and an operation display 52, the controller 51 is electrically connected with the operation display 52, and the inlet water temperature detection assembly 3, the purified water electromagnetic valve 4, the water pump 7 and the water flow sensing device 8 are electrically connected with the controller 51.
Thus, a user starts or quits the preheating function through the operation display 72, controls the water pump 31 to be opened and closed through the control component 5 electrically connected with the operation display 72, detects the water flow through the water flow sensing device 8 and feeds the water flow back to the control component 5, and when the water flow detected by the water flow sensing device 8 is larger than the program starting flow, the gas water heater main body 6 is started to ignite and heat circulating flowing water; the backwater temperature is measured by the backwater temperature probe 3 and fed back to the control component 5, when the backwater temperature is higher than the programmed purified water temperature (such as 45 ℃), the control component 5 closes the purified water electromagnetic valve 4, and the circulating backwater passes through the front filter body 11 but cannot flow to the purified water filter body 21.
The operation display 52 is provided with a preheating function key for turning on and off the preheating function and a clear water overtemperature alarm lamp.
In this way, the user can turn on and off the preheating function of the zero cold water gas water heater by operating the preheating function key on the display 52.
Example 3
As shown in fig. 4, embodiment 3 of the present invention provides a control method based on the zero-cold-water gas water heater, including the following steps:
s1, starting the zero-cold-water gas water heater, and monitoring the water inlet/return temperature in real time;
s2, will the temperature of intaking in S1 compares with preset water purification temperature threshold, controls the operating condition of water purification solenoid valve according to the comparative result, specifically is:
when the compared water inlet/return temperature is smaller than a preset purified water temperature threshold value, the controller opens the purified water electromagnetic valve to eliminate the purified water overtemperature alarm;
otherwise, the controller closes the water purification electromagnetic valve and the water purification overtemperature alarms.
Therefore, the water inlet/return temperature can be monitored in real time through the water inlet temperature detection assembly 3, and the water inlet/return temperature and the program purified water temperature are compared. Under the ordinary shower mode or the mode of preheating operation, when the temperature of intaking that intake temperature detecting element 3 surveyed is continuously less than the program and sets for the water purification temperature, controller 51 opens water purification solenoid valve 4 satisfies normal water purification demand. The operation display 52 can prompt a clear water over-temperature alarm. The preset purified water temperature threshold (programmed purified water temperature) is generally a fixed value, and can also be set by the parameter setting mode of the control component 5.
When the inlet water temperature (return water temperature) detected by the inlet water temperature detection component is continuously not less than (higher than or equal to) the programmed purified water temperature, the controller 51 closes the purified water electromagnetic valve 4, and the display 51 is operated to perform purified water overtemperature alarm. And when the water purification overtemperature alarm state is reached, when the water inlet temperature (return water temperature) detected by the water inlet temperature detection component 3 is continuously lower than the program water purification temperature, the controller 51 opens the water purification electromagnetic valve 4 again and synchronously eliminates the water purification overtemperature alarm.
The invention integrates the zero-cold-water gas water heater and the multi-stage water purification integrated device (water purifier), reduces the purchase cost, saves the installation space, simplifies the installation of the pipe arrangement, and can output bath hot water and kitchen purified water; the zero-cold-water gas water heater and the water purification filter body are integrated and share the preposed filter body, so that the filtering precision is higher, the water flow is large, the blockage is not easy to occur, the cleaning is convenient, and the preheating and high-temperature return water can be resisted without damage; the electromagnetic valve is arranged on the water inlet pipe of the water purification filter body, and the electromagnetic valve is closed when the water inlet temperature is too high, so that the high-temperature preheating backwater can be effectively prevented from flowing into the water purification filter body, the water purification filter element is damaged, and the alarm prompt is provided. The front filter body can be added with high-temperature resistant water purification particles (such as KDF, activated carbon, scale inhibitor and the like) to achieve multiple filtration effects of removing heavy metals, removing odor, absorbing chlorine, reducing water hardness and the like.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a multistage water purification integrated device, its characterized in that, it includes leading filter assembly (1), water purification filter assembly (2), temperature detect component (3), water purification solenoid valve (4) and control assembly (5) of intaking, temperature detect component (3), leading filter assembly (1), water purification solenoid valve (4) and water purification filter assembly (2) of intaking set gradually between the end of intaking and the play water end of running water, temperature detect component (3) of intaking and water purification solenoid valve (4) all are connected with control assembly (5) electricity.
2. The integrated multistage water purification device according to claim 1, wherein the pre-filter assembly (1) comprises a pre-filter body (11), a water inlet pipe (12) and a main water pipe (13), the water inlet pipe (12) is connected with a water inlet end of tap water, the tap water flows into the pre-filter body (11) through the water inlet pipe (12), and flows out through the main water pipe (13) after being filtered by the pre-filter body (11).
3. The multi-stage water purification integrated device according to claim 2, wherein the water purification filter assembly (2) comprises a water purification filter body (21), a water purification inlet pipe (22) and a water purification outlet pipe (23), the water purification inlet pipe (22) is connected with the main water pipe (13), water filtered by the pre-filter body (11) flows into the water purification filter body (21) through the water purification inlet pipe (22), and water filtered by the water purification filter body (21) flows out through the water purification outlet pipe (23).
4. The multistage water purification integrated device according to claim 3, wherein the filter material in the pre-filter body (11) is a high-temperature-resistant filter screen, the mesh number of the filter screen is 60-100 meshes, high-temperature-resistant water purification particles are added in the filter screen, and the water purification particles are one or more of activated carbon, KDF and a scale inhibitor.
5. The integrated multistage water purification device according to claim 4, wherein the filtration material in the water purification filter body (21) is one or more of PP cotton, activated carbon and ultrafiltration membrane.
6. The zero-cold-water gas water heater is characterized by comprising the multi-stage water purification integrated device, a zero-cold-water gas water heater main body (6), a water pump (7), a water flow sensing device (8) and a cold water pipe (9) according to any one of claims 1 to 5, wherein the multi-stage water purification integrated device is installed on one side of the lower end face of the zero-cold-water gas water heater main body (6), the water pump (7) and the water flow sensing device (8) are installed on a main water pipe (13) and are electrically connected with a control component (5), two ends of the cold water pipe (9) are respectively connected to the tail end of the main water pipe (13) and a water inlet pipe (12), and a built-in one-way valve (91) is installed on the cold water.
7. The zero-cold-water gas water heater of claim 6, wherein the multi-stage water purification device is an externally-hung detachable structure.
8. The zero-cold-water gas water heater according to claim 7, wherein the control assembly (5) comprises a controller (51) and an operation display (52), the controller (51) is electrically connected with the operation display (52), and the water inlet temperature detection assembly (3), the water purification electromagnetic valve (4), the water pump (7) and the water flow sensing device (8) are all electrically connected with the controller (51).
9. The zero-cold-water gas water heater of claim 8, wherein the operation display (52) is provided with a preheating function key for turning on and off a preheating function and a clear water overtemperature alarm lamp.
10. A control method of a zero-cold-water gas water heater according to any one of claims 6 to 9, characterized by comprising the following steps:
s1, starting the zero-cold-water gas water heater, and monitoring the water inlet temperature in real time;
s2, will the temperature of intaking in S1 compares with preset water purification temperature threshold, controls the operating condition of water purification solenoid valve according to the comparative result, specifically is:
when the water inlet temperature is lower than a preset purified water temperature threshold value, the controller opens a purified water electromagnetic valve to eliminate the purified water overtemperature alarm;
otherwise, the controller closes the water purification electromagnetic valve and the water purification overtemperature alarms.
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| CN202010128906.7A CN111238026A (en) | 2020-02-28 | 2020-02-28 | Multi-stage water purification integrated device, zero-cold-water gas water heater and control method thereof |
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| CN202010128906.7A CN111238026A (en) | 2020-02-28 | 2020-02-28 | Multi-stage water purification integrated device, zero-cold-water gas water heater and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275018A (en) * | 2020-10-16 | 2021-01-29 | 华帝股份有限公司 | Pre-filter and gas water heater using same |
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