CN108926999B - Pump head for filter element structure, filter element structure and water purifier - Google Patents
Pump head for filter element structure, filter element structure and water purifier Download PDFInfo
- Publication number
- CN108926999B CN108926999B CN201710376359.2A CN201710376359A CN108926999B CN 108926999 B CN108926999 B CN 108926999B CN 201710376359 A CN201710376359 A CN 201710376359A CN 108926999 B CN108926999 B CN 108926999B
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- filter
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- water inlet
- filter membrane
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 239000012528 membrane Substances 0.000 claims abstract description 85
- 239000002351 wastewater Substances 0.000 claims abstract description 59
- 238000010992 reflux Methods 0.000 claims abstract description 19
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/10—Specific supply elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/20—Specific housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/21—Specific headers, end caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/24—Specific pressurizing or depressurizing means
- B01D2313/243—Pumps
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a pump head for a filter element structure, the filter element structure and a water purifier, wherein the pump head for the filter element structure comprises a filter bottle cap with an opening at one end, a pump shell, a booster pump and a reflux pump, wherein the pump head comprises a pump body, a pump body and a water inlet, wherein the pump body comprises a pump body, a pump body and a water inlet, the pump body is provided with a water inlet, the water inlet is provided with a water outlet, the water inlet is provided with a water inlet, the water outlet is provided with a water outlet, the water outlet is provided with a water inlet, and the water outlet is provided: the pump shell is arranged in the filter bottle cap and comprises a first cavity and a second cavity, one end of the first cavity is communicated with the second cavity, and the other end of the first cavity is communicated with the waste water end of the filter membrane; the booster pump is accommodated in the first cavity, a raw water inlet and a raw water outlet are formed in the booster pump, and the raw water outlet is communicated with the water inlet end of the filter membrane; the reflux pump is accommodated in the second cavity, and a waste water outlet communicated with the water inlet end of the filter membrane is formed in the second cavity. The pump head for the filter element structure, the filter element structure and the water purifier provided by the invention can prolong the service life of the filter membrane while improving the utilization rate of wastewater.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a pump head for a filter element structure, the filter element structure and a water purifier.
Background
Along with the improvement of the living standard of people, people put higher demands on the quality of drinking water, and water purifiers are also receiving wide attention. The working principle of the water purifier is as follows: through the filtering effect of the filter membrane, the raw water such as municipal tap water, well water and the like is purified into drinking water drinkable by users, and meanwhile, a certain proportion of waste water is generated. However, the general water purifier has a high waste water ratio, which causes a great waste of water resources. At present, the waste water utilization rate is often improved by connecting a waste water return pipeline at the waste water end of the filter membrane, but the service life of the filter membrane is greatly influenced because the water flowing from the waste water return pipeline to the filter membrane is concentrated water and the flow rate is low.
Disclosure of Invention
The invention mainly aims to provide a pump head for a filter element structure, the filter element structure and a water purifier, and aims to solve the technical problem that the service life of a filter membrane is greatly influenced due to the improvement of the waste water utilization rate in the prior art.
In order to achieve the above object, the pump head for a filter element structure provided by the invention comprises a filter bottle cap with one end open, a pump shell, a booster pump and a reflux pump, wherein:
the pump shell is arranged in the filter bottle cap and comprises a first cavity and a second cavity, one end of the first cavity is communicated with the second cavity, and the other end of the first cavity is communicated with the waste water end of the filter membrane;
the booster pump is accommodated in the first cavity, a raw water inlet and a raw water outlet are formed in the booster pump, and the raw water outlet is communicated with the water inlet end of the filter membrane;
the reflux pump is accommodated in the second cavity, and a waste water outlet communicated with the water inlet end of the filter membrane is formed in the second cavity.
Preferably, the first chamber and the second chamber are communicated through a one-way valve membrane, and the one-way valve membrane only allows water to flow from the first chamber to the second chamber in one direction.
Preferably, the pump head for the filter element structure further comprises a gear arranged on the outer side of the filter bottle cap, a connecting shaft is arranged on the gear, and the reflux pump and the booster pump are connected with the connecting shaft.
Preferably, the filter bottle cap comprises a top and a side arranged around the top, and the gear is arranged outside the top.
Preferably, a first through hole is formed in the first chamber, a second through hole is formed in the side portion, and the raw water inlet, the first through hole and the second through hole are sequentially connected through a pipeline.
Preferably, a first flow passage is formed between the outer wall of the pump shell and the inner wall of the filter bottle cap, the first flow passage is used for being communicated with the water inlet end of the filter membrane, and the waste water outlet is communicated with the first flow passage.
Preferably, a third through hole communicated with the first flow channel is formed in the first chamber, and the raw water outlet is connected with the third through hole through a pipeline.
In order to achieve the above object, the present invention also provides a filter cartridge structure including a filter flask having one end opened, a filter membrane provided in the filter flask, and a pump head for the filter cartridge structure as described in any one of the above; the open end of the filter bottle cap is connected with the open end of the filter bottle; the raw water outlet and the wastewater outlet are communicated with the water inlet end of the filter membrane; one end of the pump shell where the first chamber is located is connected with the filter membrane, and the first chamber is communicated with the wastewater end of the filter membrane.
Preferably, a second flow passage is formed between the outer surface of the filter membrane and the inner wall of the filter flask, one end of the second flow passage is communicated with the wastewater outlet, and the other end of the second flow passage is communicated with the water inlet end of the filter membrane.
In order to achieve the above object, the present invention also provides a water purifier, which includes a water inlet pipe, a water outlet pipe, and a filter element structure as described in any one of the above; one end of the water inlet pipe is communicated with a tap water pipeline, and the other end of the water inlet pipe is communicated with a raw water inlet on the booster pump; one end of the water outlet pipe is communicated with the water purifying end of the filter membrane, and the other end of the water outlet pipe is used for being connected with a faucet.
In the technical scheme provided by the invention, raw water enters from one end of the booster pump, and the pressurized raw water flows out from the other end of the booster pump and flows to the filter membrane so as to be purified; at the same time, the wastewater generated by the filter membrane enters the second chamber from the first chamber and flows back to the filter membrane at a faster flow rate under the action of the reflux pump, so that the wastewater is reused. In the process, on one hand, the wastewater generated by the filter membrane is reused, so that the wastewater utilization rate is improved; on the other hand, the flow rate of the wastewater flowing to the filter membrane is faster, so that the flow rate of the water flow in the filter membrane is correspondingly increased, the filter membrane is flushed, and the service life of the filter membrane is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a pump head for a filter cartridge configuration in accordance with one embodiment of the present invention;
FIG. 2 is a cross-sectional view of the pump head of FIG. 1 after assembly;
FIG. 3 is a cross-sectional view of a cartridge configuration in accordance with one embodiment of the present invention;
fig. 4 is a schematic view of the water flow in the cartridge configuration of fig. 3.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Filter bottle cap | 3 | Booster pump |
| 11 | Top part | 31 | Raw water inlet |
| 12 | Side portion | 32 | Raw water outlet |
| 2 | Pump case | 4 | Reflux pump |
| 21 | First chamber | 5 | Gear wheel |
| 211 | Third through hole | 51 | Connecting shaft |
| 22 | First shell body | 6 | First flow channel |
| 23 | A second chamber | 7 | Filter flask |
| 231 | Waste water outlet | 8 | Filter membrane |
| 24 | Second shell | 81 | Water inlet end |
| 25 | Connecting part | 82 | Waste water end |
| 251 | Through hole | 9 | Second flow passage |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a pump head for a filter element structure.
Referring to fig. 1 and 2, in the present embodiment, the pump head for a filter cartridge structure includes a filter cartridge cap 1 with one end open, a pump housing 2, a booster pump 3, and a return pump 4, wherein:
the pump shell 2 is arranged in the filter bottle cap 1, the pump shell 2 comprises a first chamber 21 and a second chamber 23, one end of the first chamber 21 is communicated with the second chamber 23, and the other end is communicated with the waste water end 82 of the filter membrane 8;
the booster pump 3 is accommodated in the first chamber 21, a raw water inlet 31 and a raw water outlet 32 are arranged on the booster pump 3, and the raw water outlet 32 is used for being communicated with a water inlet end 81 of the filter membrane 8;
the reflux pump 4 is accommodated in the second chamber 23, and the second chamber 23 is provided with a waste water outlet 231 for communicating with the water inlet end 81 of the filter membrane 8.
In the technical scheme provided by the invention, raw water enters from one end of the booster pump 3, and the pressurized raw water flows out from the other end of the booster pump 3 and flows to the filter membrane 8 to be purified, and the raw water entering the booster pump 3 can be municipal tap water, well water and the like which are treated by the filter membrane such as PP cotton, granular carbon or compressed carbon and the like; at the same time, the wastewater generated by the filter membrane 8 enters the second chamber 23 from the first chamber 21 and flows back to the filter membrane 8 at a fast flow rate under the action of the reflux pump 4, so as to be reused, and the water flow direction is shown in fig. 4. In the process, on one hand, the wastewater generated by the filter membrane 8 is reused, so that the wastewater utilization rate is improved; on the other hand, the flow velocity of the wastewater flowing to the filter membrane 8 is high, so that the flow velocity of the water in the filter membrane 8 is high, the filter membrane 8 is flushed, and the service life of the filter membrane 8 is prolonged.
It should be noted that, the pump head for the filter element structure of the present invention is mainly aimed at a reverse osmosis membrane, namely an RO membrane, wherein the booster pump 3 is a core component in the water purifier, has self-priming and boosting functions, and can convert low-pressure liquid passing through the pump body into high-pressure liquid, so as to provide proper water pressure and water flow for the process of purifying water by the reverse osmosis membrane of the water purifier. In the prior art, the booster pump 3 is generally separately arranged from the filter flask 7, and the pressurized water enters the filter flask 7 through a pipeline, and in this structure, the booster pump 3 needs to be installed and fixed in the water purifier, and occupies a certain space. In the invention, the booster pump 3 is integrated on the filter bottle cap 1, so that the filter bottle cap is convenient to install, space is saved, and the booster pump 3 is preferably a diaphragm booster pump.
As a preferred embodiment of the present invention, the first chamber 21 and the second chamber 23 are in communication via a one-way valve membrane that allows only one-way flow of water from the first chamber 21 to the second chamber 23.
Specifically, the pump housing 2 includes a connecting portion 25, a first housing 22 and a second housing 24 provided on opposite sides of the connecting portion 25, the first housing 22 forming a first chamber 21, the second housing 24 forming a second chamber 23, and the first chamber 21 and the second chamber 23 being isolated by the connecting portion 25; the end part of the first shell 22 is connected with the filter membrane 8, and the end part of the second shell 24 is connected with the inner wall of the filter bottle cap 1; the connecting portion 25 is provided with a through hole 251, and the through hole 251 is covered with a check valve film which allows only one-way flow of water from the first chamber 21 to the second chamber 23. The end of the first housing 22 is hermetically connected to the filter membrane 8 by a waterway seal, so that wastewater generated by the filter membrane 8 directly flows to the first chamber 21 and flows to the second chamber 23 through the through hole 251. The end of the second housing 24 can also be connected with the inner wall of the filter bottle cap 1 in a sealing way by adopting a waterway sealing piece, under the action of the reflux pump 4, the wastewater in the second chamber 23 flows to the water inlet end 81 of the filter membrane 8 through the wastewater outlet 231 at a faster flow rate, and is filtered and utilized by the filter membrane 8 again, wherein the reflux pump 4 is preferably a vane type reflux pump. The through hole 251 is provided with a one-way valve membrane, so that the waste water in the second chamber 23 can be prevented from flowing to the first chamber 21, and the waste water has a faster flow rate.
The waste water outlet 231 formed in the second chamber 23 may be formed in various manners, such as the second housing 24 is circumferentially closed, and a through hole is formed in the second housing 24 to form the waste water outlet 231; alternatively, the second housing 24 is circumferentially open to form the waste water outlet 231, and at this time, waste water may flow out from the open mouth of the second housing 24 in the direction of rotation of the blades on the return pump 4.
As another preferred embodiment of the present invention, referring again to fig. 2, the pump head for the filter cartridge structure further includes a gear 5 disposed on the outer side of the filter cartridge cover 1, and a connection shaft 51 is disposed on the gear 5, and the reflux pump 4 and the booster pump 3 are connected to the connection shaft 51. The pump head for the filter element structure provided by the invention integrates the reflux pump 4 and the booster pump 3, so that the functions of the filter element structure are diversified, and the water purifier can be miniaturized. In the present embodiment, the reflux pump 4 and the booster pump 3 are driven to operate simultaneously by the gear 5, and the overall structure of the pump head is further simplified. Of course, according to practical situations, two motors may be used to drive the reflux pump 4 and the booster pump 3 respectively, for example, when the quality of raw water is poor, the waste water generated by the filter membrane 8 is directly discharged and is not recycled, and at this time, the reflux pump 4 does not need to operate.
Specifically, the filter cap 1 includes a top 11 and a side 12 provided around the top 11, and the gear 5 is provided outside the top 11. Since the gear 5 needs to rotate to drive the reflux pump 4 and the booster pump 3 to operate, when the gear 5 is arranged on the outer side of the top 11, the rotation of the gear 5 can be stabilized by using the whole weight of the filter element structure.
The filter bottle cap 1 is also provided with a waste water port, and a user can discharge waste water generated by the filter membrane 8 from the waste water port at intervals. Furthermore, the first chamber 21 is provided with a first through hole (not shown), and the side 12 is provided with a second through hole (not shown), which are sequentially connected to the raw water inlet 31, the first through hole and the second through hole through pipes. Raw water from the outside enters the booster pump 3 through a pipe.
Referring to fig. 4, a first flow channel 6 is formed between the outer wall of the pump housing 2 and the inner wall of the filter cap 1, the first flow channel 6 is used for communicating with the water inlet end 81 of the filter membrane 8, and the waste water outlet 231 is communicated with the first flow channel 6. By using the gap between the outer wall of the pump housing 2 and the inner wall of the filter cap 1, a water flow channel, i.e. a first flow channel 6, is formed, the waste water in the second chamber 23 flows from the waste water outlet 231 into the first flow channel 6 and flows back along the first flow channel 6 to the water inlet end 81 of the filter membrane 8 for re-purification. It is of course also possible to provide a conduit between the waste water outlet 231 and the water inlet end 81 of the filter membrane 8 for reintroducing the waste water in the second chamber 23 into the filter membrane 8.
Further, a third through hole 211 communicated with the first flow channel 6 is formed in the first chamber 21, and the raw water outlet 32 is connected with the third through hole 211 through a pipeline. Raw water pressurized by the booster pump 3 flows into the first flow channel 6, enters the water inlet end 81 of the filter membrane 8 along the first flow channel 6, and at this time, both raw water and wastewater flow to the water inlet end 81 of the filter membrane 8 along the first flow channel 6. Similarly, a pipe may be provided between the raw water outlet 32 and the water inlet end 81 of the filter membrane 8 to introduce the pressurized raw water into the filter membrane 8.
The invention also provides a filter element structure, referring to fig. 3 and 4, which comprises a filter flask 7 with an opening at one end, a filter membrane 8 arranged in the filter flask 7, and a pump head for the filter element structure according to any one of the embodiments; the open end of the filter bottle cap 1 is connected with the open end of the filter bottle 7; the raw water outlet 32 and the waste water outlet 231 are communicated with the water inlet end 81 of the filter membrane 8; the end of the pump housing 2 where the first chamber 21 is located is connected to the filter membrane 8, and the first chamber 21 is in communication with the waste water end 82 of the filter membrane 8. The specific structure of the pump head for the filter element structure refers to the above embodiments, and since the filter element structure adopts all the technical solutions of all the embodiments, the pump head at least has all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein.
Preferably, a second flow passage 9 is formed between the outer surface of the filter membrane 8 and the inner wall of the filter flask 7, one end of the second flow passage 9 is communicated with the waste water outlet 231, and the other end is communicated with the water inlet end 81 of the filter membrane 8. The water flow channel, i.e. the second flow channel 9, is formed by the gap between the outer surface of the filter membrane 8 and the inner wall of the filter flask 7, it being understood that at this point the open end of the filter flask cap 1 needs to be in sealing connection with the open end of the filter flask 7. When the first flow channel 6 is formed between the outer wall of the pump housing 2 and the inner wall of the filter cap 1, the first flow channel 6 is communicated with the second flow channel 9, so that the wastewater in the second chamber 23 and the raw water pressurized by the booster pump 3 enter the filter membrane 8 along the first flow channel 6 and the second flow channel 9 in sequence. In the present embodiment, no pipe is required to be provided between the wastewater outlet 231 formed in the second chamber 23 and/or the raw water outlet 32 formed in the booster pump 3 and the water inlet end 81 of the filter membrane 8 to form a water flow path, thereby simplifying the structure.
The invention also provides a water purifier which comprises a water inlet pipe, a water outlet pipe and the filter element structure of any one of the embodiments; one end of the water inlet pipe is communicated with a tap water pipeline, and the other end of the water inlet pipe is communicated with a raw water inlet 31 on the booster pump 3; one end of the water outlet pipe is communicated with the water purifying end of the filter membrane 8, and the other end is used for being connected with a water tap. The specific structure of the filter element structure refers to the above embodiments, and because the water purifier adopts all the technical schemes of all the embodiments, the water purifier at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated here.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. A pump head for filter core structure, its characterized in that includes one end open-ended filter flask lid, pump case, booster pump and backwash pump, wherein:
the pump shell is arranged in the filter bottle cap and comprises a first cavity and a second cavity, one end of the first cavity is communicated with the second cavity, and the other end of the first cavity is communicated with the waste water end of the filter membrane;
the booster pump is accommodated in the first cavity, a raw water inlet and a raw water outlet are formed in the booster pump, and the raw water outlet is communicated with the water inlet end of the filter membrane;
the reflux pump is accommodated in the second cavity, and a waste water outlet communicated with the water inlet end of the filter membrane is formed in the second cavity.
2. A pump head for a filter cartridge structure as recited in claim 1, wherein said first chamber and said second chamber are in communication through a one-way valve membrane that permits only one-way flow of water from said first chamber to said second chamber.
3. The pump head for a filter cartridge structure of claim 1, further comprising a gear disposed outside the filter cartridge cover, a connecting shaft being disposed on the gear, and the return pump and the booster pump being connected to the connecting shaft.
4. A pump head for a filter cartridge structure as in claim 3, wherein the filter cartridge cover includes a top portion and a side portion disposed around the top portion, the gear being disposed outside the top portion.
5. The pump head for a filter cartridge structure as in claim 4, wherein said first chamber is provided with a first through hole, said side is provided with a second through hole, and said raw water inlet, said first through hole and said second through hole are sequentially connected by a pipe.
6. A pump head for a filter cartridge according to any one of claims 1 to 5, wherein a first flow passage is formed between an outer wall of the pump housing and an inner wall of the filter cartridge cap, the first flow passage being for communication with a water inlet end of a filter membrane, and the waste water outlet being in communication with the first flow passage.
7. The pump head for a filter cartridge structure as recited in claim 6, wherein a third through hole communicated with said first flow passage is formed in said first chamber, and said raw water outlet is connected to said third through hole through a pipe.
8. A filter cartridge structure comprising a filter flask having an opening at one end, a filter membrane disposed in the filter flask, and a pump head for a filter cartridge structure according to any one of claims 1 to 7; the open end of the filter bottle cap is connected with the open end of the filter bottle; the raw water outlet and the wastewater outlet are communicated with the water inlet end of the filter membrane; one end of the pump shell where the first chamber is located is connected with the filter membrane, and the first chamber is communicated with the wastewater end of the filter membrane.
9. The filter element structure of claim 8, wherein a second flow passage is formed between the outer surface of the filter membrane and the inner wall of the filter flask, one end of the second flow passage is communicated with the waste water outlet, and the other end is communicated with the water inlet end of the filter membrane.
10. A water purifier comprising a water inlet pipe, a water outlet pipe and the filter element structure according to claim 8 or 9; one end of the water inlet pipe is communicated with a tap water pipeline, and the other end of the water inlet pipe is communicated with a raw water inlet on the booster pump; one end of the water outlet pipe is communicated with the water purifying end of the filter membrane, and the other end of the water outlet pipe is used for being connected with a faucet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376359.2A CN108926999B (en) | 2017-05-24 | 2017-05-24 | Pump head for filter element structure, filter element structure and water purifier |
| PCT/CN2017/086627 WO2018214176A1 (en) | 2017-05-24 | 2017-05-31 | Pump head for filter element structure, filter element structure, and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376359.2A CN108926999B (en) | 2017-05-24 | 2017-05-24 | Pump head for filter element structure, filter element structure and water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108926999A CN108926999A (en) | 2018-12-04 |
| CN108926999B true CN108926999B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710376359.2A Active CN108926999B (en) | 2017-05-24 | 2017-05-24 | Pump head for filter element structure, filter element structure and water purifier |
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| CN (1) | CN108926999B (en) |
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| CN113233547B (en) * | 2021-05-21 | 2025-01-28 | 宁波利佳青石电气科技有限公司 | RO filter element with integrated booster pump and water purification system thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10302580B4 (en) * | 2003-01-22 | 2008-12-11 | Danfoss A/S | Water-cleaning device |
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| KR20040009422A (en) * | 2002-07-23 | 2004-01-31 | 웅진코웨이주식회사 | Water purifier for reverse osmotic |
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| CN108926999A (en) | 2018-12-04 |
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