CN212640102U - Single-core reverse osmosis water purification system and single-core reverse osmosis water purifier - Google Patents

Abstract

The utility model discloses a single core reverse osmosis water purification system and single core reverse osmosis water purifier, this single core reverse osmosis water purification system includes composite filter element, this overhead tank sets up behind composite filter element's reverse osmosis filter element group spare, is used for storing the pure water after this reverse osmosis filter element group spare purifies, controlling means controls the system water of water purification system based on the pressure detector detects the pressure value, make the pure water of storing in the overhead tank and the pure water of reverse osmosis filter element group spare system water outflow simultaneously when the water purification system goes out; wherein the volume of the pressure tank is less than a preset value, and the water purifying amount of the water purifying system per hour ranges from 150 gallons to 250 gallons. This technical scheme can reduce cost, reduces the complete machine volume, guarantees the velocity of water, has solved the problem that first cup water TDS value is high, noise abatement, and the reliability is high.

Description

Single-core reverse osmosis water purification system and single-core reverse osmosis water purifier

Technical Field

The utility model relates to a water purification technical field especially relates to a single core reverse osmosis water purification system and single core reverse osmosis water purifier.

Background

The water purifier is a water treatment device for deeply filtering and purifying water according to the use requirement of water, generally refers to a small purifier used in households, and mainly comprises a small-flux water purifier and a large-flux water purifier. Wherein, the small flux water purifier generally refers to 50/75/100 gallon water purifier, and the corresponding water yield is 0.13/0.19/0.26L/min respectively; because the water yield is low, pure water is generally required to be prepared and stored in the pressure tank, so that water can be discharged from the pressure tank firstly when water is taken, the water discharging speed is high, and the duration time is short; the large-flux water purifier is generally an 400/600/800 gallon water purifier, the corresponding water yield is 1/1.5/2L/min respectively, and the water can be filtered and drunk immediately due to the high water production speed.

The existing water purifiers with the two specifications have the advantages and disadvantages, and the pressure tank configured by the small-flux water purifier has a large volume generally, so that the small-flux water purifier occupies a space under a kitchen and causes the space under the kitchen to be crowded; if the pressure tank has a large amount of water, bacteria are easy to breed; although small, high flux water purifiers have expensive filter elements, high cost, and high TDS (Total Dissolved Solids) of the first cup of water.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, the embodiment of the disclosure provides a single-core reverse osmosis water purification system and a single-core reverse osmosis water purifier. The technical scheme is as follows:

according to an aspect of the disclosed embodiments, there is provided a single-core reverse osmosis water purification system, comprising:

the composite filter element comprises a filter flask, wherein a front filter element assembly and a reverse osmosis filter element assembly are arranged in the filter flask, a first water inlet and a first water outlet of the front filter element assembly, a second water inlet, a second water outlet, a wastewater outlet and a third water outlet of the reverse osmosis filter element assembly are arranged on the filter flask; the second water outlet is communicated with the third water outlet; the first water inlet is communicated with an outlet of an external water source;

the reverse osmosis pipeline is communicated with the first water outlet and the second water inlet, a water inlet valve and a booster pump are arranged on the reverse osmosis pipeline, the first water outlet is communicated to the water inlet of the booster pump through a valve port of the water inlet valve, and the water outlet of the booster pump is communicated with the second water inlet;

the waste water outlet is communicated with the waste water pipeline;

the pressure pipeline is communicated with the second water outlet and the third water outlet; a pressure detector is arranged on the pressure pipeline, and an outlet of the pressure pipeline is communicated with the pressure tank; a check valve is arranged in the filter bottle, is arranged at a pure water main outlet of the reverse osmosis filter element assembly and is used for limiting the purified water from the reverse osmosis filter element assembly to only flow out and not flow back to the reverse osmosis filter element assembly; the volume of the pressure tank is smaller than a preset value;

the water outlet pipeline is communicated with the third water outlet;

the control device is connected with the pressure detector, the water inlet valve and the booster pump, the pressure detector is used for detecting a first pressure signal of the pressure tank and transmitting the first pressure signal to the control device when pure water in the pressure tank is stored to a preset threshold value, and the control device controls the booster pump and the water inlet valve to be closed based on the received first pressure signal and stops water production; the pressure detector is used for detecting a second pressure signal of the pressure tank and transmitting the second pressure signal to the control device when the outlet of the pure water pipeline is opened, and the control device controls the booster pump and the water inlet valve to be opened based on the received second pressure signal to start water production so that the pure water stored in the pressure tank and the pure water produced by the composite filter element simultaneously flow to the water outlet pipeline;

wherein the single core reverse osmosis water purification system has a water purification capacity ranging from 150 gallons to 250 gallons per hour.

In one embodiment, the range of diameters of the pressure tank includes: 120mm-140mm, the height range of the pressure tank comprises: 280mm-300 mm.

In one embodiment, the preset threshold comprises 1.3L to 1.8L.

In one embodiment, the pressure detector comprises a high-voltage switch.

In one embodiment, a post-filter element assembly is further arranged in the filter bottle, the third water outlet is a third water outlet of the post-filter element assembly, a third water inlet of the post-filter element assembly is arranged in the filter bottle and is communicated with the second water outlet, and the second water outlet is communicated with the third water outlet through the post-filter element; the pressure pipeline is communicated with the third water inlet and is communicated with the third water outlet through the rear filter element.

In one embodiment, a waste water valve is arranged on the waste water pipeline, a water through hole is formed in the waste water valve, the waste water valve is connected with the control device, the control device controls the waste water valve to open a valve port in a preset time period, and when the waste water valve closes the valve port, waste water flowing out of the waste water outlet flows to the outlet of the waste water pipeline through the water through hole.

In one embodiment, the pre-filter element assembly comprises a polypropylene fiber PP and a carbon rod composite filter element.

In one embodiment, the post-filter assembly comprises an activated carbon filter element.

According to a second aspect of the embodiments of the present disclosure, a single-core reverse osmosis water purifier is provided, which comprises the single-core reverse osmosis water purification system.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

1. the reverse osmosis water purification system has the advantages that the water purification amount per hour ranges from 150 gallons to 250 gallons, and the water outlet speed of 500 gallons of the large-flux water purifier can be achieved under the condition that pure water is output by the pressure tank and the water purification system at the same time; because the water production speed is 150 gallons to 250 gallons per hour and is lower than the large flux, the used power adapter, booster pump, filter element and the like have low cost, and the large flux water yield can be realized at an economically applicable price; and the filter element in the water purification system is a consumable, and the cost for replacing the filter element is high by adopting a medium-small flux water purifier.

2. The pressure tank in the single-core reverse osmosis water purification system has the advantages that the volume is smaller than a preset value, the volume is small, the water storage capacity is small, the water purification system can be circulated quickly, and bacteria are not easy to breed after being left for a long time; the pressure tank can be arranged in the whole machine, and the pressure tank does not need to be arranged outside the water purifier main machine, so that the volume of the water purifier is reduced; because the water production part of the water purification system and the pressure tank simultaneously discharge water when discharging water, the instant pressure tank has smaller volume and can also ensure the longer-time faster water discharging speed; because the overhead tank is small in size and the water purification system is faster than the small-flux water purifier, the overhead tank can be quickly filled to a preset threshold value, water production is stopped, and the water production time of the water purification system is shortened.

3. As is known, if the large flux is not used for a long time, the TDS value of the first cup of water is very high, and if parts are needed to solve the problem, the cost is directly increased; and this water purification system's during water purification system's system water part and overhead tank are gone out simultaneously, and the TDS value of first cup of water can be diluted by the pure water of storing in the overhead tank, has just solved the problem that first cup of water TDS value is high.

4. This disclosure uses this overhead tank to store pure water, and the pressure in the overhead tank extrudes water when going out water, does not need extra power, and is with low costs and noiselessness.

5. The water purification system provided by the disclosure uses conventional water purification devices and pressure tanks, and is high in reliability after long-term market verification.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a single-core reverse osmosis water purification system according to an exemplary embodiment.

FIG. 2 is a schematic diagram of an outlet conduit of a reverse osmosis cartridge assembly according to an exemplary embodiment.

FIG. 3 is a schematic illustration of inlet and outlet piping for a reverse osmosis cartridge assembly and a post-cartridge assembly according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic diagram of a single-core reverse osmosis water purification system according to an exemplary embodiment.

As shown in fig. 1, the single-core reverse osmosis water purification system includes: the composite filter element 10 comprises a filter bottle 101, a front filter element assembly and a reverse osmosis filter element assembly are arranged in the filter bottle 101, a first water inlet 102 and a first water outlet 103 of the front filter element assembly are arranged on the filter bottle 101, and a second water inlet 104, a second water outlet 105, a wastewater water outlet 106 and a third water outlet 107 of the reverse osmosis filter element assembly are arranged; the second water outlet 105 is communicated with the third water outlet 107; the first water inlet 102 is communicated with an outlet of an external water source; the reverse osmosis pipeline 20 is communicated with the first water outlet 103 and the second water inlet 104, a water inlet valve 21 and a booster pump 22 are arranged on the reverse osmosis pipeline 20, the first water outlet 103 is communicated to a water inlet of the booster pump 22 through a valve port of the water inlet valve 21, and a water outlet of the booster pump 22 is communicated with the second water inlet 104; the waste water pipeline 30 is communicated with the waste water outlet 106; a pressure line 40, wherein the pressure line 40 is communicated with the second water outlet 105 and the third water outlet 107; a pressure detector 41 is arranged on the pressure pipeline 40, and the outlet of the pressure pipeline 40 is communicated with a pressure tank 42; a check valve (not shown in fig. 1) is further arranged in the filter bottle 101, and the check valve is arranged at a pure water main outlet of the reverse osmosis filter element assembly and is used for limiting that water purified by the reverse osmosis filter element assembly only flows out and cannot flow back to the reverse osmosis filter element assembly; the volume of the pressure tank 42 is less than a preset value; the water outlet pipeline 50 is communicated with the third water outlet 107 through the water outlet pipeline 50; the control device is connected with the pressure detector 41, the water inlet valve 21 and the booster pump 22, the pressure detector 41 is used for detecting a first pressure signal of the pressure tank 42 and transmitting the first pressure signal to the control device when pure water in the pressure tank 42 is stored to a preset threshold value, and the control device controls the booster pump 22 and the water inlet valve 21 to be closed based on the received first pressure signal and stops water production; the pressure detector 41 is configured to detect a second pressure signal of the pressure tank 42 and transmit the second pressure signal to the control device when the outlet of the pure water pipeline is opened, and the control device controls the pressurizing pump 22 and the water inlet valve 21 to be opened based on the received second pressure signal, so as to start water production, so that the pure water stored in the pressure tank 42 and the pure water produced by the composite filter element 10 simultaneously flow to the water outlet pipeline 50; wherein the single core reverse osmosis water purification system has a water purification capacity ranging from 150 gallons to 250 gallons per hour. Preferably, the single core reverse osmosis water purification system has a water purification capacity in the range of 200 gallons per hour.

In this disclosure, this leading filter element group's first water inlet 102 is connected with the export 60 of the municipal running water that external water source is shown in figure 1, and the former water inlet 102 of this leading filter element group of external water source outflow flows into leading filter element group earlier, and this leading filter element group filters after the large granule impurity of aquatic and some colored impurity with water from the first delivery port 103 output of this leading filter element group, so avoid the impurity damage devices such as rearmounted water intaking valve 21, booster pump 22 and reverse osmosis filter element group of aquatic to effectively improve this reverse osmosis water purification system's life.

In the present disclosure, in order to control the flow of water and to control the operation of the reverse osmosis filter core assembly in cooperation with the booster pump 22, a water inlet valve 21 is generally disposed on the reverse osmosis pipeline 20, and the water inlet valve 21 may be a solenoid valve. This reverse osmosis filter element group spare need have certain pressure through the water of this reverse osmosis filter element group spare at the during operation, so booster pump 22 provides power for rivers for the water after this leading filter element group spare purifies can purify through reverse osmosis filter element group spare under the effect of pressure. After the water inlet valve 21 is opened, the water purified by the front filter element assembly can enter the water inlet of the booster pump 22 through the valve port of the water inlet valve 21, and after the pressure of the water is increased by the booster pump 22, the water flows from the water outlet of the booster pump 22 to the second water inlet 104 of the reverse osmosis filter element assembly, and then enters the reverse osmosis filter element assembly for purification.

FIG. 2 is a schematic diagram of an outlet conduit of a reverse osmosis cartridge assembly according to an exemplary embodiment. As shown in fig. 2, in this embodiment, the pure water main outlet 201 of the reverse osmosis filter element assembly can be divided into two outlets, namely the second water outlet 105 and the third water outlet 107, and pure water purified by the reverse osmosis filter element can flow out from the second water outlet 105 and the third water outlet 107 after passing through the main outlet 201, wherein pure water flowing out from the second water outlet 105 flows into the pressure tank 42 through the pressure pipe 40, and pure water flowing out from the third water outlet 107 flows into the water outlet pipe 50.

In the present disclosure, as shown in fig. 2, the check valve 108 may be located at a pure water main outlet 201 of the reverse osmosis filter element assembly, the main outlet may be divided into the second water outlet 105 and the third water outlet 107, the check valve 108 is used for limiting a water flow direction of the pure water generated by the reverse osmosis filter element assembly, so that the pure water output by the reverse osmosis filter element assembly can only flow out, and cannot flow back into the reverse osmosis filter element assembly, so that the pure water flowing out of the pressure tank 42 can only flow out from the third water outlet 107 after flowing in from the second water outlet 105, and cannot continue to flow back into the reverse osmosis filter element assembly, thereby preventing the reverse osmosis filter element assembly from being damaged.

In the present disclosure, the pressure detector 41 may be located at any position on the pressure pipeline 40, and for example, as shown in fig. 1, the pressure detector 41 is located between the second water outlet 105 and the pressure tank 42.

In the present disclosure, the water flowing out from the third water outlet 107 will flow to the faucet through the water outlet pipeline 50, when the faucet is in a closed state, the pure water output by the reverse osmosis filter element assembly flows into the pressure tank 42 through the filling opening of the pressure tank 42 after being output from the second water outlet 105, the water level in the pressure tank 42 rises, the air in the tank is compressed, and the pressure increases accordingly. When the pure water in the pressure tank 42 is stored to a preset threshold value, and the pressure in the tank reaches a specified upper limit pressure value, the pressure detector 41 detects a first pressure signal when the pressure tank 42 reaches the upper limit pressure value and transmits the first pressure signal to the control device, the control device controls the booster pump 22 and the water inlet valve 21 to be closed, and the composite filter element 10 stops making water; when the user opens the faucet to start using water, the pressure in the pressure tank 42 automatically squeezes the pure water in the pressure tank 42, after the pure water stored in the pressure tank 42 flows out from the filling opening of the pressure tank 42, the pure water only flows to the water outlet pipeline 50 through the third water outlet 107 and does not flow back to the reverse osmosis filter element assembly under the direction limitation of the check valve, at this time, the pressure detector 41 detects a second pressure signal of the pressure drop of the pressure tank 42 and transmits it to the control means, the control device controls the booster pump 22 and the water inlet valve 21 to be opened, so that the raw water starts to produce water through the preposed filter element assembly and the reverse osmosis filter element assembly, pure water produced by the reverse osmosis filter element assembly flows to the water outlet pipeline 50 through the third water outlet 107, in this way, the pure water stored in the pressure tank 42 and the pure water produced by the composite filter element 10 simultaneously flow to the water outlet pipeline 50.

The single-core reverse osmosis water purification system provided by the disclosure has the following advantages:

1. the purified water amount per hour ranges from 150 gallons to 250 gallons, and the water outlet speed of 500 gallons of the large-flux water purifier can be achieved under the condition that the pressure tank 42 and the composite filter element output pure water simultaneously; because the water production speed is 150 gallons to 250 gallons per hour and is lower than the large flux, the used power adapter, the booster pump 22, the filter element and the like have low cost, and the large flux water yield can be realized at an economically applicable price; the filter element in the water purification system is a consumable material, and the cost for replacing the filter element is high by adopting a medium-and-small-flux water purifier;

2. the pressure tank 42 in the single-core reverse osmosis water purification system has the advantages that the volume is smaller than a preset value, the volume is small, the water storage capacity is small, the water can be quickly circulated, and bacteria are not easy to breed after being left for a long time; the pressure tank 42 can be arranged in the whole machine, and the pressure tank 42 does not need to be arranged outside the water purifier main machine to reduce the volume of the water purifier; because the water production part of the water purification system and the pressure tank 42 simultaneously discharge water when discharging water, the instant pressure tank 42 has smaller volume and can also ensure a longer-time faster water discharging speed; because overhead tank 42 is small and water purification system water purification is fast than little flux water purifier, so can fill this overhead tank 42 to predetermineeing the threshold value fast, stop system water, reduce water purification system's system water time.

3. As is known, if the large flux is not used for a long time, the TDS value of the first cup of water is very high, and if parts are needed to solve the problem, the cost is directly increased; and this composite filter element 10 and overhead tank 42 are gone out simultaneously when disclosing water, and the TDS value of first cup of water can be diluted by the pure water of storing in the overhead tank 42, has just solved the high problem of first cup of water TDS value.

4. The pressure tank 42 is used for storing pure water, water can be extruded through the pressure in the pressure tank 42 when the water is discharged, extra power is not needed, and the water-saving type water dispenser is low in cost and free of noise.

5. The water purification system provided by the disclosure uses the conventional water purification device and the pressure tank 42, and has high reliability after long-term market verification.

In one possible embodiment, the range of diameters of the pressure tank 42 includes: 120mm-140mm, the height range of the pressure tank 42 comprises: 280mm-300 mm.

Preferably, the pressure tank 42 may have a diameter of 130mm and a height of 290 mm.

In one possible embodiment, the preset threshold comprises 1.3L to 1.8L. Namely, the pressure tank 42 can store 1.3L to 1.8L of water at the maximum.

For example, assuming that the purified water amount of the water purification system is 200 gallons per hour, that is, the water production speed is about 0.5L/min, the size of the pressure tank 42 is 130mm in diameter and 290mm in height, and the maximum water storage of the pressure tank 42 is 1.5L, the water purification system can continuously produce about 2.5L of water at a speed of 1.25L/min within 2 minutes, which is equivalent to a water production speed of 500 gallons and is the same as the water production speed of high flux, and the water purification system is usually used for domestic water, usually, the domestic water usage amount is not more than 2.5L, so that each water intake can have a larger water production speed, and the situation that the water production amount is rapidly reduced does not occur, thereby ensuring the water usage for users.

In a possible embodiment, the pressure detector 41 may be a high-voltage switch.

In the present disclosure, when pure water in the pressure tank 42 is stored to a preset threshold value, and the pressure in the tank reaches a specified upper limit pressure value, the high-pressure switch will open the conductive loop, and the control device finds that the conductive loop is disconnected, and then controls the booster pump 22 and the water inlet valve 21 to be closed, so as to stop water production; when a user opens the faucet to start water supply, the pressure of the pressure tank 42 is reduced, the high-voltage switch is automatically reset to a closed state, and the control device finds that the conductive loop is conducted to control the booster pump 22 and the water inlet valve 21 to be opened, so that raw water starts to be supplied through the preposed filter element assembly and the reverse osmosis filter element assembly, and pure water stored in the pressure tank 42 and pure water produced by the reverse osmosis filter element assembly simultaneously flow to the water outlet pipeline 50.

In a possible embodiment, a post-filter cartridge assembly is also provided in the filter flask 101, and fig. 3 is a schematic view of the inlet and outlet piping of a reverse osmosis cartridge assembly and post-filter cartridge assembly according to an exemplary embodiment. As shown in fig. 3, in this embodiment, the third water outlet 107 on the filter bottle is the third water outlet 107 of the post-filter element assembly, and the third water inlet 109 of the post-filter element assembly is disposed in the filter bottle 101 and is communicated with the second water outlet 105, so that the pure water output from the second water outlet 105 of the reverse osmosis filter element assembly can flow into the post-filter element assembly through the third water inlet 109, and then flows to the third water outlet 107 after being filtered by the post-filter element assembly, and the second water outlet 105 is communicated with the third water outlet 107 through the post-filter element assembly; the pressure pipeline 40 is communicated with the third water inlet, and the third water outlet 107 is communicated with the post-filter element assembly, so that pure water in the pressure tank 42 can flow from the second water outlet 105 to the third water inlet 109 through the pressure pipeline 40 under the action of the check valve 108 when flowing out, then flows into the post-filter element assembly through the third water inlet 109, and flows to the third water outlet 107 after being filtered by the post-filter element assembly.

In this disclosure, the pure water of storage in this overhead tank 42 and the pure water of this reverse osmosis filter element group spare output all can flow into this rearmounted filter element group spare from the third inlet 109 of this rearmounted filter element group spare, this rearmounted filter element group spare is used for purifying the pure water for the last time and then flows out from this third delivery port 107, like this, can further carry out further purification to the pure water of the water of storing in the overhead tank 42 and this reverse osmosis filter element group spare output, impurity such as bacterium that can also the water storage time overlength produce in this overhead tank 42 of filtering, guarantee the safety and sanitation of user's water.

In a possible embodiment, as shown in fig. 1, a waste water valve 31 is disposed on the waste water pipeline 30, a water through hole is disposed on the waste water valve 31, the waste water valve is connected to the control device, the control device controls the waste water valve to open a valve port for a predetermined period of time, and when the waste water valve closes the valve port, the waste water flowing out of the waste water outlet 106 flows to the outlet 301 of the waste water pipeline 30 through the water through hole.

Here, the smaller the aperture of the water passing hole of the waste water valve is, the lower the flow rate of the waste water is, the specific size of the water passing hole needs to be selected according to the water purifying capacity of the reverse osmosis filter element assembly, and when the water purifying capacity of the reverse osmosis filter element assembly is higher, the smaller the aperture of the water passing hole can be set. The waste water valve 31 may be a normally closed type direct-acting electromagnetic valve, and when the waste water valve is used at ordinary times, a valve port of the waste water valve is kept in a closed state, and waste water filtered by the reverse osmosis filter element assembly flows to an outlet of the waste water pipeline 30 through the water through hole. When the water purification system needs to be cleaned, the control device can control the wastewater valve 31 to be electrified to open the valve port for a certain period of time, so that a wider flow channel is provided for wastewater, a large amount of water can flow through the flow channel quickly, and the purpose of better flushing the water purification system is achieved.

In one possible embodiment, the prefilter assembly comprises a PP and carbon rod composite filter element, also referred to as a PCB composite filter element; wherein the PP is a synthetic chemical fiber made of polypropylene fiber. This composite filter can filter the large granule impurity and some coloured impurity of aquatic, avoids the impurity of aquatic to damage original papers such as water intaking valve 21, booster pump 22 and reverse osmosis filter core subassembly to effectively improve this water purification system's life.

In one possible embodiment, the post-filter assembly comprises a post-activated carbon filter element.

This rearmounted activated carbon filter core sets up the final position in pure water pipeline for further filtering for the pure water that flows through filters the particulate impurity and some coloured impurity in the aquatic.

The present disclosure also provides a single-core reverse osmosis water purifier, which comprises a casing and the single-core reverse osmosis water purification system arranged in the casing, wherein the specific structure of the single-core reverse osmosis water purification system refers to the above embodiments, and the single-core reverse osmosis water purifier adopts all technical solutions of all the above embodiments, so that the single-core reverse osmosis water purifier also has all beneficial effects brought by the technical solutions of the above embodiments, and the details are not repeated herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.

Claims (9)

1. The utility model provides a single core reverse osmosis water purification system which characterized in that includes:

the composite filter element comprises a filter flask, wherein a front filter element assembly and a reverse osmosis filter element assembly are arranged in the filter flask, a first water inlet and a first water outlet of the front filter element assembly, a second water inlet, a second water outlet, a wastewater outlet and a third water outlet of the reverse osmosis filter element assembly are arranged on the filter flask; the second water outlet is communicated with the third water outlet; the first water inlet is communicated with an outlet of an external water source;

the reverse osmosis pipeline is communicated with the first water outlet and the second water inlet, a water inlet valve and a booster pump are arranged on the reverse osmosis pipeline, the first water outlet is communicated to the water inlet of the booster pump through a valve port of the water inlet valve, and the water outlet of the booster pump is communicated with the second water inlet;

the waste water outlet is communicated with the waste water pipeline;

the pressure pipeline is communicated with the second water outlet and the third water outlet; a pressure detector is arranged on the pressure pipeline, and an outlet of the pressure pipeline is communicated with the pressure tank; a check valve is arranged in the filter bottle, is arranged at a pure water main outlet of the reverse osmosis filter element assembly and is used for limiting the purified water from the reverse osmosis filter element assembly to only flow out and not flow back to the reverse osmosis filter element assembly; the volume of the pressure tank is smaller than a preset value;

the water outlet pipeline is communicated with the third water outlet;

the control device is connected with the pressure detector, the water inlet valve and the booster pump, the pressure detector is used for detecting a first pressure signal of the pressure tank and transmitting the first pressure signal to the control device when pure water in the pressure tank is stored to a preset threshold value, and the control device controls the booster pump and the water inlet valve to be closed based on the received first pressure signal and stops water production; the pressure detector is used for detecting a second pressure signal of the pressure tank and transmitting the second pressure signal to the control device when the outlet of the water outlet pipeline is opened, and the control device controls the booster pump and the water inlet valve to be opened based on the received second pressure signal to start water production so that the pure water stored in the pressure tank and the pure water produced by the composite filter element simultaneously flow to the water outlet pipeline;

wherein the single core reverse osmosis water purification system has a water purification capacity ranging from 150 gallons to 250 gallons per hour.

2. The single core reverse osmosis water purification system of claim 1,

the diameter range of the pressure tank comprises: 120mm-140mm, the height range of the pressure tank comprises: 280mm-300 mm.

3. The single core reverse osmosis water purification system of claim 1,

the preset threshold value comprises 1.3L to 1.8L.

4. The single core reverse osmosis water purification system of claim 1,

the pressure detector includes a high-voltage switch.

5. The single core reverse osmosis water purification system of claim 1,

a rear filter element assembly is further arranged in the filter bottle, the third water outlet is the third water outlet of the rear filter element assembly, the third water inlet of the rear filter element assembly is arranged in the filter bottle and is communicated with the second water outlet, and the second water outlet is communicated with the third water outlet through the rear filter element; the pressure pipeline is communicated with the third water inlet and is communicated with the third water outlet through the rear filter element.

6. The single core reverse osmosis water purification system of claim 1,

the waste water pipeline is provided with a waste water valve, the waste water valve is provided with a water through hole, the waste water valve is connected with the control device, the control device controls the waste water valve to open a valve port in a preset time period, and when the control device controls the waste water valve to close the valve port, waste water flowing out of the waste water outlet flows to an outlet of the waste water pipeline through the water through hole.

7. The single core reverse osmosis water purification system of claim 1,

the front filter element component comprises a polypropylene fiber PP and a carbon rod composite filter element.

8. The single core reverse osmosis water purification system of claim 5,

the post-positioned filter element assembly comprises an activated carbon filter element.

9. A single core reverse osmosis water purifier comprising the single core reverse osmosis water purification system of any one of claims 1 to 8.

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