CN219409503U

CN219409503U - Electric heating water purifying and drinking machine capable of automatically descaling

Info

Publication number: CN219409503U
Application number: CN202320486636.6U
Authority: CN
Inventors: 陈杰; 娄梦函; 董平
Original assignee: Nanjing Yanghong Engineering Technology Co ltd; Nanjing Shuilian Tianxia Seawater Desalination Technology Research Institute Co ltd
Current assignee: Nanjing Yanghong Engineering Technology Co ltd; Nanjing Shuilian Tianxia Seawater Desalination Technology Research Institute Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-07-25
Anticipated expiration: 2033-03-15

Abstract

The utility model discloses an automatic descaling electric heating water purifying and drinking machine which is characterized by comprising a raw water inlet, a raw water inlet valve, a raw water tank, a water inlet pump, a primary filtering device, a high-pressure pump, a reverse osmosis membrane filter, a rear active carbon filter, a purified water inlet valve, a heat exchanger, a hot water container, a heating pipe, a warm water outlet, a hot water outlet, a dosing tank, a dosing valve, a dosing pump, a reflux valve, a central controller, a time relay and a pH adjusting device, which are sequentially connected. According to the utility model, the reflux valve, the dosing tank, the dosing valve and the dosing pump which are sequentially connected are additionally arranged at the hot water tank and the heat exchanger, the time node of the time relay is arranged before the equipment is used, the hot water tank and the heat exchanger are automatically cleaned at fixed time, and cleaning wastewater enters the raw water tank for recycling after passing through the reflux valve and the pH adjusting device, so that scale produced by long-term use of the electric heating water purifier can be removed, the service life is prolonged, and the cyclic recycling of the wastewater can be realized.

Description

Electric heating water purifying and drinking machine capable of automatically descaling

Technical Field

The utility model relates to the field of water purifying equipment, in particular to an electric heating water purifying and drinking machine capable of automatically removing scale.

Background

The water plays an indispensable role in daily life of people and various industries, and the electric heating water purifying and drinking machine can timely and conveniently meet the demands of people on warm water and hot water, is deeply favored by consumers, and gradually becomes a necessary electrical appliance in places such as residential buildings, office buildings and the like. The inner container is a core heating component of the electric heating water purifying machine. In the prior art, the inner containers of the electric heating water purifying and drinking machine can be divided into an internal heating type and an external heating type. The internal heating type electric heating water purifying and drinking machine is characterized by fast heating efficiency and low power consumption by directly placing the stainless steel electric heating tube in the hot water container to heat water. However, the heating pipe of the internal heating type electric heating water purifier is easy to scale in the heating process, so that the hot water liner is polluted and is difficult to clean. Besides the hot water liner, the heat exchanger of the electrothermal water purifier is also easy to enrich scale in the cold and hot circulation process. The long-term accumulation of scale not only can cause the deterioration of heat transfer condition of a heating surface and the aging of equipment, but also can cause the increase of indexes such as water hardness, heavy metal and the like of an electric heating water purifying and drinking machine, so that potential safety hazards exist and the health of a human body is influenced.

Based on the problems, the utility model particularly relates to an electric heating water purifying and drinking machine capable of automatically removing scale. According to the utility model, the reflux valve and the sequentially connected dosing tank, dosing valve and dosing pump are additionally arranged at the hot water tank and the heat exchanger of the traditional electric heating water purifier and are electrically connected with the central controller, so that the hot water tank and the heat exchanger of the electric heating water purifier are periodically descaled, the accumulation of pipeline and element scale of the electric heating water purifier is effectively avoided, and meanwhile, the reflux valve is arranged to realize recycling of cleaning wastewater, so that the electric heating water purifier has good economic value.

Disclosure of Invention

The utility model provides an electric heating water purifier capable of automatically removing scale, which aims at the problems existing in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an automatic descaling electric heating water purifying and drinking machine is characterized by comprising a raw water inlet, a raw water inlet valve, a raw water tank, a water inlet pump, a primary filtering device, a high-pressure pump, a reverse osmosis membrane filter, a rear active carbon filter and a purified water inlet valve which are connected in sequence, and further comprising a heat exchanger, a hot water container, a heating pipe, a warm water outlet, a hot water outlet, a dosing tank, a dosing valve, a dosing pump, a reflux valve, a central controller, a time relay and a pH adjusting device; the primary filter device comprises a PP cotton filter, a granular activated carbon filter and a compressed activated carbon filter; the water purifying end of the reverse osmosis membrane filter is connected with the rear activated carbon filter; the water outlet of the rear activated carbon filter is connected with the heat exchanger through one end of a purified water inlet valve, and the other end of the rear activated carbon filter is connected with the hot water container; one end of a purified water outlet of the hot water container is connected with the hot water outlet, and the other end is connected with the heat exchanger; one end of the water outlet of the heat exchanger is connected with the warm water outlet, and the other end is connected with the hot water liner

Further, the dosing tank is connected with the cleaning liquid inlet of the hot water liner through a dosing valve and a dosing pump, and one end of the dosing tank is connected with the cleaning liquid inlet of the heat exchanger.

Furthermore, a heating pipe is arranged in the hot water container, and a waste water outlet of the hot water container is connected with the original water tank through a return valve.

Further, the waste water outlet of the heat exchanger is connected with the original water tank through a return valve.

Further, the medicament in the medicament adding box is edible citric acid liquid with the concentration of 2 percent.

Furthermore, the raw water inlet valve, the water inlet pump, the high-pressure pump, the purified water inlet valve, the heating pipe, the dosing valve, the dosing pump, the reflux valve and the time relay are all electrically connected with the central controller.

The utility model has the beneficial effects that:

an electrothermal water purifier capable of automatically descaling is characterized in that a dosing tank, a dosing valve, a dosing pump, a reflux valve and a time relay are additionally arranged on the basis of the original electrothermal water purifier, a time node of the time relay is arranged before equipment starts to operate, and an edible citric acid liquid with concentration of 2% in the dosing tank is used for cleaning and descaling a hot water container and a heat exchanger in the later work of the water purifier, so that the service life of the water purifier can be prolonged, energy is saved, and meanwhile, cleaning waste liquid is returned to the original water tank again through the reflux valve and a pH adjusting device for recycling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following description of the embodiments will briefly describe the drawings that are required to be used in the description:

fig. 1 is a schematic flow chart of an electric heating water purifying and drinking machine capable of automatically removing scale.

In fig. 1: 1. a raw water inlet; 2. raw water inlet valve; 3. a raw water tank; 4. a water inlet pump; 5. a primary filtration device; 6. a high pressure pump; 7. a reverse osmosis membrane filter; 8. a rear activated carbon filter; 9. purified water inlet valve; 10. a heat exchanger; 11. a hot water container; 12. heating pipes; 13. a warm water outlet; 14. a hot water outlet; 15. a dosing box; 16. a dosing valve; 17. a dosing pump; 18. a return valve; 19. a central controller; 20. a time relay; a ph adjustment device.

Description of the embodiments

In order to make the purpose of the utility model clear, the advantages intuitive and easy to understand, the technical scheme in the embodiment of the utility model is further described with reference to the attached drawings. The devices listed in the figures are simplified schematic representations which illustrate the basic water purification and heating process of the present utility model by way of illustration only, and therefore show only the structures relevant to the present utility model.

Examples

As shown in fig. 1, an automatic descaling electric heating water purifying and drinking machine comprises a raw water inlet 1, a raw water inlet valve 2, a raw water tank 3, a water inlet pump 4, a primary filtering device 5, a high-pressure pump 6, a reverse osmosis membrane filter 7, a rear active carbon filter 8, a purified water inlet valve 9, a heat exchanger 10, a hot water container 11, a heating pipe 12, a warm water outlet 13, a hot water outlet 14, a dosing tank 15, a dosing valve 16, a dosing pump 17, a reflux valve 18, a central controller 19, a time relay 20 and a pH adjusting device 21 which are connected in sequence; the primary filter device 5 comprises a PP cotton filter, a granular activated carbon filter and a compressed activated carbon filter; the water purifying end of the reverse osmosis membrane filter 7 is connected with a post-positioned activated carbon filter 8; the water outlet of the rear activated carbon filter 8 is connected with a heat exchanger 10 through one end of a purified water inlet valve 9, and the other end of the rear activated carbon filter is connected with a hot water container 11; one end of a purified water outlet of the hot water container 11 is connected with a hot water outlet 14, and the other end is connected with the heat exchanger 10; one end of the water outlet of the heat exchanger 10 is connected with a warm water outlet 13, and the other end is connected with a hot water container 11.

The dosing tank is connected with the cleaning liquid inlet of the hot water liner through a dosing valve and a dosing pump, and one end of the dosing tank is connected with the cleaning liquid inlet of the heat exchanger.

The inside of the hot water container 11 is provided with a heating pipe 12, and a waste water outlet of the hot water container 11 is connected with the original water tank 3 through a reflux valve 18.

The waste water outlet of the heat exchanger 10 is connected with the raw water tank 3 through a return valve 18.

The medicament in the medicament adding box 15 is 2% edible citric acid liquid.

The raw water inlet valve 2, the water inlet pump 4, the high-pressure pump 6, the purified water inlet valve 9, the heating pipe 12, the dosing valve 16, the dosing pump 17, the reflux valve 18 and the time relay 20 are all electrically connected with the central controller 19.

A more detailed explanation is:

before the water dispenser apparatus is formally operated, a time node of the time relay 20 is set (typically, half a year to one year is set according to the local water quality condition).

When the device is in formal operation, municipal tap water sequentially enters the raw water tank 3 through the raw water inlet 1 and the raw water inlet valve 2, then enters the primary filtering device 5 through the water inlet pump 4, larger particles, residual chlorine and other partial impurities in the water are removed, then enters the reverse osmosis membrane filter 7 through the high-pressure pump 6, bacteria, viruses and other harmful substances in the water are removed, filtered concentrated water flows out from the concentrated water outlet, filtered purified water enters the post-positioned activated carbon filter 8, bacteria which are bred are removed, the filtered water respectively reaches the heat exchanger 10 and the hot water tank 11 through the purified water inlet valve 9, wherein the water entering the hot water tank 11 respectively reaches the hot water outlet 14 and the heat exchanger 10 through heating, and the water entering the heat exchanger 10 respectively reaches the warm water outlet 13 and the hot water tank 11 through heat exchange.

When the equipment runs for a period of time, the time relay 20 reaches a specific time node, the central controller 19 controls the raw water inlet valve 2, the water inlet pump 4, the high-pressure pump 6, the purified water inlet valve 9 and the heating pipe 12 to be closed, controls the dosing valve 16, the dosing pump 17 and the reflux valve 18 to be opened, washes the hot water tank 11 and the heat exchanger 10 through the edible citric acid liquid with the concentration of 2% in the dosing tank 15 to remove the scale enriched in the water tank 11 and the heat exchanger, and simultaneously, the washing liquid flows back to the raw water tank 3 after passing through the reflux valve 18 and the pH adjusting device 21 for repeated filtration and use, and the flow direction of the washing liquid in the descaling process is marked by a shadow part in fig. 1. The implementation of the utility model can remove most scale in the electric heating water dispenser, prolong the service life of the equipment, ensure the drinking health of people, save water resources and realize the recycling of the water resources.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for part of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automatic descaling electric heating water purifying and drinking machine is characterized by comprising a raw water inlet, a raw water inlet valve, a raw water tank, a water inlet pump, a primary filtering device, a high-pressure pump, a reverse osmosis membrane filter, a rear active carbon filter and a purified water inlet valve which are connected in sequence, and further comprising a heat exchanger, a hot water container, a heating pipe, a warm water outlet, a hot water outlet, a dosing tank, a dosing valve, a dosing pump, a reflux valve, a central controller, a time relay and a pH adjusting device; the primary filter device comprises a PP cotton filter, a granular activated carbon filter and a compressed activated carbon filter; the water purifying end of the reverse osmosis membrane filter is connected with the rear activated carbon filter; the water outlet of the rear activated carbon filter is connected with the heat exchanger through one end of a purified water inlet valve, and the other end of the rear activated carbon filter is connected with the hot water container; one end of a purified water outlet of the hot water container is connected with the hot water outlet, and the other end is connected with the heat exchanger; one end of the water outlet of the heat exchanger is connected with the warm water outlet, and the other end is connected with the hot water liner.

2. The automatic descaling electric heating water purifier as claimed in claim 1, wherein the dosing tank is connected with the cleaning liquid inlet of the hot water container at one end and the cleaning liquid inlet of the heat exchanger at one end through a dosing valve and a dosing pump.

3. The automatic descaling electric heating water purifier as claimed in claim 1, wherein a heating pipe is arranged inside the hot water container, and the waste water outlet of the hot water container is connected with the original water tank through a reflux valve.

4. An automatic descaling electric heating water purifier according to claim 1, wherein the waste water outlet of the heat exchanger is connected with the raw water tank through a reflux valve.

5. The automatic descaling electric heating water purifier of claim 1, wherein the medicine in the medicine adding box is 2% citric acid solution.

6. The automatic descaling electric heating water purifier of claim 1, wherein the raw water inlet valve, the water inlet pump, the high pressure pump, the purified water inlet valve, the heating pipe, the dosing valve, the dosing pump, the reflux valve, the time relay and the central controller are all electrically connected.