CN219539644U - Tank device with backflushing filter element in hemodialysis equipment - Google Patents
Tank device with backflushing filter element in hemodialysis equipment Download PDFInfo
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- CN219539644U CN219539644U CN202222549743.7U CN202222549743U CN219539644U CN 219539644 U CN219539644 U CN 219539644U CN 202222549743 U CN202222549743 U CN 202222549743U CN 219539644 U CN219539644 U CN 219539644U
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- filter core
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model provides a tank body device with recoil filter core in hemodialysis equipment, includes upper end open-ended casing and is located the filter core body of casing, the casing upper end is connected with the upper cover, this internal water conservancy diversion centre bore that is equipped with of filter core, water conservancy diversion centre bore upper end inner wall is fixed with slewing mechanism, slewing mechanism has the structure that improves the contact surface and get rid of filter core body surface impurity when back flush when making the filter core body filter, the upper cover is equipped with the shaft hole, the upper cover upper surface is connected with the outlet pipe, slewing mechanism upper end outside is connected with the shaft hole rotation, slewing mechanism upper end passes the shaft hole and extends to in the outlet pipe. The tank device with the backflushing filter element in the hemodialysis equipment provided by the utility model effectively removes or reduces impurities on the outer surface of the filter element body, further prolongs the service life of the filter element body and reduces the replacement cost.
Description
Technical Field
The utility model relates to the technical field of hemodialysis reverse osmosis water treatment equipment, in particular to a tank device with a backflushing filter element in hemodialysis equipment.
Background
Hemodialysis is one of the renal replacement therapies employed by patients with acute and chronic renal failure. In hemodialysis, the blood in a patient is drained outside the body, purified by passing the blood through a dialyzer containing a plurality of hollow fibers, and the purified blood is returned to the patient. Through hemodialysis, the treatment aims of removing metabolic waste and redundant water in the body and maintaining electrolyte and acid-base balance can be achieved. In the dialyzer, blood flows in the hollow fibers, and dialysate flows out of the hollow fibers in opposite directions, and the blood and the dialysate exchange substances in a dispersing, ultrafiltration, adsorption, convection and other modes, so that the purpose of purifying the blood is achieved.
The dialysate is generally obtained by diluting a dialysis concentrate containing electrolytes and bases with pure water in proportion, and has a concentration similar to that of electrolytes in normal blood. A qualified dialysate (exemplified by Fei Senyou s) in which the ratio of concentrate a, concentrate B, and reverse osmosis water is 1:1.225:32.775, wherein the reverse osmosis water is greater than 93%, is of great importance in hemodialysis. In general, city tap water is used for water treatment, and since city tap water contains various trace elements, especially heavy metals, disinfectants, endotoxins, bacteria and the like, water treatment equipment is needed, and pure water for dilution can be obtained after a series of water treatment processes. When the PP cotton filter element is used for a period of time, impurities such as colloid, suspended matters and sludge are attached to the surface of the PP cotton filter element, and the PP cotton filter element needs to be replaced at the moment to ensure the filtering effect.
At present, the filter elements with good quality of 5 mu m and 10 mu m are produced and supplied in the United states, and the total replacement cost is high, however, the work of a hemodialysis room is seriously affected once the filter elements are in emergency or very situations such as incapacity of being supplied during epidemic situations, and a water machine can stop swinging.
In order to prolong the service life of the PP cotton filter element and reduce the replacement frequency, the inventor discovers through consulting related data, and Chinese patent publication No. CN202020485043.4 discloses a PP cotton filter element for improving the use rate.
However, the above patent still has the following disadvantages: after the PP cotton filter element is used for a period of time, the outer surface of the PP cotton filter element is uniformly adhered with impurities such as colloid, suspended solids and silt, and the impurities cannot be effectively removed or reduced due to the fact that the PP cotton filter element does not have a recoil function, a new filter element is required to be replaced to achieve a filtering effect, and the cost is increased and the use rate of the PP cotton filter element is reduced due to the fact that the new filter element is replaced, so that the service life is shortened.
Disclosure of Invention
The utility model aims at: the tank device with the backflushing filter element in the hemodialysis equipment is provided for solving the problems in the background technology, so that impurities on the outer surface of the filter element body are effectively removed or reduced, the service life of the filter element body is further prolonged, and the replacement cost is reduced.
In order to achieve the above purpose, the following technical scheme is adopted: the utility model provides a tank body device with recoil filter core in hemodialysis equipment, includes upper end open-ended casing and is located the filter core body of casing, the casing upper end is connected with the upper cover, this internal water conservancy diversion centre bore that is equipped with of filter core, water conservancy diversion centre bore upper end inner wall is fixed with slewing mechanism, slewing mechanism has the structure that improves the contact surface and get rid of filter core body surface impurity when back flush when making the filter core body filter, the upper cover is equipped with the shaft hole, the upper cover upper surface is connected with the outlet pipe, slewing mechanism upper end outside is connected with the shaft hole rotation, slewing mechanism upper end passes the shaft hole and extends to in the outlet pipe.
Preferably, the rotating mechanism comprises a guide block, the outer wall of the lower end of the guide block is fixedly connected with the inner wall of the upper end of the flow guide center hole, a plurality of guide holes are formed in the guide block, the guide holes are of spiral structures, the upper ends of the guide holes are located inside the water outlet pipe, and the other end of the water outlet pipe is connected with an auxiliary mechanism.
Preferably, the guide block is provided with a first clamping groove along the circumferential direction, the hole wall of the shaft hole is provided with a second clamping groove along the circumferential direction, the first clamping groove is provided with a sealing bearing, and the outer ring of the sealing bearing is fixed at the bottom of the second clamping groove.
Preferably, the side wall of the shell is connected with a water inlet pipe.
Preferably, the auxiliary mechanism comprises a water storage tank, a backflushing water pipe is arranged on the side wall of the water storage tank, the other end of the backflushing water pipe is connected to the middle of the water outlet pipe, a booster water pump is arranged on the backflushing water pipe, a first valve is arranged at the tail end of the water outlet pipe, a second valve is arranged on the backflushing water pipe, and a water outlet pipe is further arranged on the side wall of the shell.
Preferably, the upper end of the shell is fixedly connected with the upper cover through threads.
Preferably, a sealing ring is arranged on the horizontal contact surface of the shell and the upper cover.
Preferably, the hole diameter of the guide hole gradually becomes smaller from top to bottom.
Preferably, the upper surface of the guide block is provided with a pointed cone.
Preferably, the PP cotton filter element is formed by heating, melting, spinning and traction of polyester fiber particles.
The utility model has the beneficial effects that:
compared with the prior art, the tank device with the backflushing filter element in the hemodialysis equipment has the advantages that the guide blocks and the spiral guide holes are arranged, so that the filter element body is driven to rotate in the filtering process and the backflushing process, the effect of uniform filtering surface is achieved, the phenomenon that the impurities on the outer surface of the filter element body are locally concentrated to cause blockage is avoided, the flow direction of a water body is changed in the backflushing process, and the impurities on the outer surface of the filter element body are effectively removed or reduced; and meanwhile, under the condition of supercharging through the booster water pump, the rotating speed of the guide block is improved relative to the filtering process, so that the filter element body rotates to generate centrifugal force, impurities attached to the outer surface of the filter element body are thrown out, the impurities on the outer surface of the filter element body are further removed or reduced, the service life of the filter element body is further prolonged, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a tank assembly with a backflushing filter element in a hemodialysis machine of the present utility model.
Fig. 2 is an enlarged schematic view of the internal structure at a in fig. 1.
Fig. 3 is a schematic diagram of the internal structure of a guide block of a tank device with a backflushing filter element in a hemodialysis apparatus.
In the figure, the filter element comprises a 1-shell, a 2-filter element body, a 3-upper cover, a 4-diversion central hole, a 5-water outlet pipe, a 51-first valve, a 6-guide block, a 61-first clamping groove, a 62-second clamping groove, a 63-sealing bearing, a 7-guide hole, an 8-water inlet pipe, a 9-water storage tank, a 10-backflushing water pipe, a 101-second valve, a 11-booster water pump, a 12-water outlet pipe, a 13-sealing ring and a 14-pointed cone.
Detailed Description
The following description of the embodiments of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-3, a tank device with a backflushing filter element in hemodialysis equipment comprises a shell 1 with an opening at the upper end and a filter element body 2 positioned in the shell 1, wherein the upper end of the shell 1 is connected with an upper cover 3, in particular, the upper end of the shell 1 is fixedly connected with the upper cover 3 through threads, a diversion center hole 4 is arranged in the filter element body 2, a rotating mechanism is fixed on the inner wall of the upper end of the diversion center hole 4, the rotating mechanism is provided with a structure for improving the contact surface of the filter element body 2 during filtration and removing impurities on the outer surface of the filter element body 2 during backflushing, the upper cover 3 is provided with a shaft hole, the upper surface of the upper cover 3 is connected with a water outlet pipe 5, the outer part of the upper end of the rotating mechanism is rotationally connected with the shaft hole, and the upper end of the rotating mechanism penetrates through the shaft hole and extends into the water outlet pipe 5.
In the embodiment, the rotating mechanism comprises a guide block 6, the outer wall of the lower end of the guide block 6 is fixedly connected with the inner wall of the upper end of the flow guiding central hole 4, a plurality of guide holes 7 are formed in the guide block 6, the guide holes 7 are of a spiral structure, the upper ends of the guide holes 7 are positioned in the water outlet pipe 5, the other end of the water outlet pipe 5 is connected with an auxiliary mechanism, and the side wall of the shell 1 is connected with a water inlet pipe 8; during filtering, filtered water flows into the water outlet pipe 5 from the guide center hole 4 through the guide holes 7 in the guide block 6, and the guide block 6 is driven to rotate due to the spiral structure of the guide holes 7, so that the filter element body 2 connected with the guide block 6 rotates, and the relative position of the outer surface of the filter element body 2 and the water inlet pipe 8 is changed.
The auxiliary mechanism comprises a water storage tank 9, wherein a backflushing water pipe 10 is arranged on the side wall of the water storage tank 9, the other end of the backflushing water pipe 10 is connected to the middle part of a water outlet pipe 5, a booster water pump 11 is arranged on the backflushing water pipe 10, a first valve 51 is arranged at the tail end of the water outlet pipe 5, a second valve 101 is arranged on the backflushing water pipe 10, a water outlet pipe 12 is also arranged on the side wall of the shell 1, and a third valve is arranged on each of the water inlet pipe 8 and the water outlet pipe 12; in the back flushing process, a third valve and a first valve 51 on the water inlet pipe 8 are closed, a third valve and a booster pump 11 on the second valve 101 and the water outlet pipe 12 are opened, the effect of increasing water pressure is achieved through the booster pump 11, and water flows sequentially through the back flushing water pipe 10, the water outlet pipe 5 and the guide hole 7 to flow into the diversion center hole 4; among the plurality of guide holes 7 in the guide block 6, because the plurality of guide holes 7 are of a spiral structure and the water pressure is increased, the rotating speed of the guide block 6 is improved relative to the filtering process at the moment, so that the filter element body 2 connected with the guide block 6 rotates to generate centrifugal force, impurities such as colloid, suspended matters and silt attached to the outer surface of the filter element body 2 are thrown out, meanwhile, water reversely flows, the effect of backwashing is achieved, and finally, the fallen impurities are discharged through the drain pipe 12, so that the impurities on the outer surface of the filter element body 2 are effectively removed or reduced, the service life of the filter element body 2 is further prolonged, and the cost is reduced. The other end of the water outlet pipe 5 is connected with a water storage tank 9, and water in the water storage tank 9 is primarily filtered water by the device and can be used for back flushing; in order to avoid the situation that tiny impurities adhere to the inner wall of the diversion center hole 4 and influence the filtering and back flushing effects, the other end of the water outlet pipe 5 is connected with the next water treatment device, at the moment, water in the water storage tank 9 is pure water finally obtained through a water treatment process, and in consideration of the cost and the size of impurities filtered at different stages of water treatment, the water inlet of the water storage tank 9 can be connected behind corresponding working procedures according to the situation when the filter element body 2 is prevented from being blocked in the back flushing process.
In this embodiment, in order to reduce friction and improve sealing effect, the guide block 6 is provided with a first clamping groove 61 along the circumferential direction, the hole wall of the shaft hole is provided with a second clamping groove 62 along the circumferential direction, the first clamping groove 61 is provided with a sealing bearing 63, and the outer ring of the sealing bearing 63 is fixed at the bottom of the second clamping groove 62.
As a preferred embodiment of the above embodiment, in order to further improve the sealing effect and avoid water leakage, a sealing ring 13 is provided on the horizontal contact surface between the housing 1 and the upper cover 3; the inside end cap that is equipped with of water conservancy diversion centre bore 4 lower extreme, in order to improve stable effect, end cap lower surface is connected with the connecting axle, and the connecting axle lower extreme rotates to be connected in casing 1 inner bottom.
As a preferred embodiment of the above embodiment, in order to further raise the backwash pressure, the hole diameter of the guide hole 7 is gradually decreased from top to bottom.
As a preferred embodiment of the above embodiment, in order to achieve drainage and diversion during backwash to reduce resistance, the upper surface of the guide block 6 is provided with a pointed cone 14.
Wherein the PP cotton filter element is formed by heating, melting, spinning and traction of polyester fiber particles; and the first valve, the second valve and the third valve are electric control valves or manual valves.
The utility model can be applied to not only hemodialysis water treatment equipment, but also all filter elements of a conventional water treatment and hemodialysis centralized liquid supply system, including 0.22 mu m bacteria and endotoxin filters, and has remarkable significance for reducing the cost of hospitals.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. Tank body device that has recoil filter core among hemodialysis equipment, including upper end open-ended casing (1) and be located filter core body (2) in casing (1), casing (1) upper end is connected with upper cover (3), its characterized in that: be equipped with water conservancy diversion centre bore (4) in filter core body (2), water conservancy diversion centre bore (4) upper end inner wall is fixed with rotary mechanism, rotary mechanism has the structure that improves the contact surface and get rid of filter core body (2) surface impurity when back flush when making filter core body (2) filter, upper cover (3) are equipped with the shaft hole, upper cover (3) upper surface is connected with outlet pipe (5), rotary mechanism upper end outside is connected with the shaft hole rotation, the rotary mechanism upper end passes the shaft hole and extends to in outlet pipe (5).
2. A tank assembly with a backflushing cartridge in a hemodialysis machine of claim 1 wherein: the rotating mechanism comprises a guide block (6), the outer wall of the lower end of the guide block (6) is fixedly connected with the inner wall of the upper end of the flow guide central hole (4), a plurality of guide holes (7) are formed in the guide block (6), the guide holes (7) are of spiral structures, the upper ends of the guide holes (7) are located inside the water outlet pipe (5), and the other end of the water outlet pipe (5) is connected with an auxiliary mechanism.
3. A tank assembly with a backflushing cartridge in a hemodialysis machine according to claim 2, wherein: the guide block (6) is provided with a first clamping groove (61) along the circumferential direction, the wall of the shaft hole is provided with a second clamping groove (62) along the circumferential direction, the first clamping groove (61) is provided with a sealing bearing (63), and the outer ring of the sealing bearing (63) is fixed at the bottom of the second clamping groove (62).
4. A tank assembly with a backflushing cartridge in a hemodialysis machine according to claim 2, wherein: the side wall of the shell (1) is connected with a water inlet pipe (8).
5. A tank assembly with a backflushing cartridge in a hemodialysis machine according to claim 2, wherein: the auxiliary mechanism comprises a water storage tank (9), a backflushing water pipe (10) is arranged on the side wall of the water storage tank (9), the other end of the backflushing water pipe (10) is connected to the middle of a water outlet pipe (5), a booster water pump (11) is arranged on the backflushing water pipe (10), a first valve (51) is arranged at the tail end of the water outlet pipe (5), a second valve (101) is arranged on the backflushing water pipe (10), and a water outlet pipe (12) is further arranged on the side wall of the shell (1).
6. A tank assembly with a backflushing cartridge in a hemodialysis machine of claim 1 wherein: the upper end of the shell (1) is fixedly connected with the upper cover (3) through threads.
7. A tank assembly having a backflushing cartridge in a hemodialysis machine of claim 6 wherein: a sealing ring (13) is arranged on the horizontal contact surface of the shell (1) and the upper cover (3).
8. A tank assembly with a backflushing cartridge in a hemodialysis machine according to claim 2, wherein: the aperture of the guide hole (7) gradually becomes smaller from top to bottom.
9. A tank assembly with a backflushing cartridge in a hemodialysis machine according to claim 2, wherein: the upper surface of the guide block (6) is provided with a pointed cone part (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222549743.7U CN219539644U (en) | 2022-09-23 | 2022-09-23 | Tank device with backflushing filter element in hemodialysis equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222549743.7U CN219539644U (en) | 2022-09-23 | 2022-09-23 | Tank device with backflushing filter element in hemodialysis equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219539644U true CN219539644U (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222549743.7U Active CN219539644U (en) | 2022-09-23 | 2022-09-23 | Tank device with backflushing filter element in hemodialysis equipment |
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| CN (1) | CN219539644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117509829A (en) * | 2024-01-04 | 2024-02-06 | 江西智博环境技术有限公司 | Integrated water purification equipment convenient to pile up impurity clearance |
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2022
- 2022-09-23 CN CN202222549743.7U patent/CN219539644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117509829A (en) * | 2024-01-04 | 2024-02-06 | 江西智博环境技术有限公司 | Integrated water purification equipment convenient to pile up impurity clearance |
| CN117509829B (en) * | 2024-01-04 | 2024-04-05 | 江西智博环境技术有限公司 | Integrated water purification equipment convenient to pile up impurity clearance |
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