CN112777764A - Enhancement mode hollow fiber membrane filter equipment - Google Patents

Enhancement mode hollow fiber membrane filter equipment Download PDF

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Publication number
CN112777764A
CN112777764A CN202011499810.8A CN202011499810A CN112777764A CN 112777764 A CN112777764 A CN 112777764A CN 202011499810 A CN202011499810 A CN 202011499810A CN 112777764 A CN112777764 A CN 112777764A
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CN
China
Prior art keywords
filtering device
hollow fiber
fiber membrane
water
sealing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011499810.8A
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Chinese (zh)
Inventor
叶洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Aosisaisi Environmental Protection Technology Co ltd
Original Assignee
Chongqing Aosisaisi Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Chongqing Aosisaisi Environmental Protection Technology Co ltd filed Critical Chongqing Aosisaisi Environmental Protection Technology Co ltd
Priority to CN202011499810.8A priority Critical patent/CN112777764A/en
Publication of CN112777764A publication Critical patent/CN112777764A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to an enhanced hollow fiber membrane filtering device, which comprises a shell, wherein a water inlet is formed in the top of the shell, a water outlet is formed in the lower part of the side wall of the shell, a booster pump, a first filtering device, a second filtering device and a third filtering device are sequentially arranged in the shell from top to bottom, the inlet of the first filtering device is connected with the outlet of the booster pump, and a stainless steel filter screen is arranged in the first filtering device; the inlet of the second filtering device is connected with the outlet of the first filtering device, and an activated carbon filter element is arranged in the second filtering device; the inlet of the third filtering device is connected with the outlet of the second filtering device, the outlet of the third filtering device is detachably connected with the water outlet, and a hollow fiber membrane assembly is detachably and fixedly connected in the third filtering device. The invention can purify the water source and is convenient for later maintenance.

Description

Enhancement mode hollow fiber membrane filter equipment
Technical Field
The invention relates to the technical field of filtering devices, in particular to an enhanced hollow fiber membrane filtering device.
Background
In situations where it is desirable to use river or river water on site as a water source, such as for washing clothes, cars, or cleaning non-edible tools, it is necessary to first subject the turbid river or river water to a preliminary purification treatment. In case of flood disasters, even if tap water is temporarily interrupted, rainwater accumulated in a depression cannot directly satisfy basic life utilization.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an enhanced hollow fiber membrane filtering device which can purify a water source and is convenient for later maintenance.
In order to solve the technical problems, the invention provides an enhanced hollow fiber membrane filtering device which comprises a shell, wherein a water inlet is formed in the top of the shell, a water outlet is formed in the lower portion of the side wall of the shell, a booster pump, a first filtering device, a second filtering device and a third filtering device are sequentially arranged in the shell from top to bottom, an inlet of the first filtering device is connected with an outlet of the booster pump, and a stainless steel filter screen is arranged in the first filtering device; the inlet of the second filtering device is connected with the outlet of the first filtering device, and an activated carbon filter element is arranged in the second filtering device; the inlet of the third filtering device is connected with the outlet of the second filtering device, the outlet of the third filtering device is detachably connected with the water outlet, and a hollow fiber membrane assembly is detachably and fixedly connected in the third filtering device.
Preferably, the third filtering device comprises a water storage tank, and the hollow fiber membrane module is arranged in the water storage tank; a water outlet joint is arranged at the bottom of the side wall of the water storage tank, an outlet of the third filtering device is formed at the water outlet joint, and a sealing joint is detachably and fixedly connected to the water outlet joint; the sealing joint comprises a sealing sleeve and a sealing plug connected in the sealing sleeve in a sliding manner, a support part is arranged in the sealing sleeve, a guide rod is arranged on the support part, a sliding sleeve matched with the guide rod is arranged on the sealing plug, the guide rod is arranged in the sliding sleeve in a penetrating manner in a sliding manner, a spring is sleeved on the periphery of the guide rod, and two ends of the spring are respectively abutted against the support part and the sealing plug; the water outlet is internally provided with an inserted link, the sealing joint is inserted at the water outlet, the sealing plug can make linear motion from a sealing position to a conducting position under the action of the inserted link, when the sealing plug is positioned at the sealing position, the periphery of the sealing plug is tightly abutted against the inner periphery of the sealing sleeve, and when the sealing plug is positioned at the conducting position, the periphery of the sealing plug is separated from the inner periphery of the sealing sleeve.
Preferably, the outer periphery of the sealing plug is conical, the diameter of the sealing plug gradually decreases along the direction far away from the guide rod, a conical surface matched with the sealing plug is arranged on the inner periphery of the sealing sleeve, and the conical degree of the conical surface is consistent with that of the sealing plug.
Preferably, the top and the bottom of second filter equipment's inside all are provided with the holding ring, activated carbon filter's periphery and two the interior week butt of holding ring, just activated carbon filter is the ring column shape, second filter equipment's entry is located activated carbon filter periphery, just second filter equipment's export is located activated carbon filter's interior week.
Preferably, an outlet of the second filtering device is connected with a water outlet hose; the water storage tank comprises a tank body and a tank cover which are in sealing connection, and a water inlet in sealing connection with the water outlet hose is formed in the tank cover.
Preferably, the bottom in box is provided with the water storage chamber, and the bottom in this water storage chamber is sealed, and the top is provided with a plurality of installing ports, and this installing port link up the diapire of box, hollow fiber membrane module passes through the installing port with the water storage chamber intercommunication, just the water storage chamber with go out water connector intercommunication.
Preferably, the hollow fiber membrane module comprises a plurality of curtain-type hollow fiber membranes arranged at intervals, the curtain-type hollow fiber membranes comprise a first water collecting pipe and a second water collecting pipe, and the hollow fiber membranes are connected between the first water collecting pipe and the second water collecting pipe; the bottoms of the first water collecting pipes are communicated with a first total water collecting pipe, the bottoms of the second water collecting pipes are communicated with a second total water collecting pipe, and a plurality of support rods are connected between the first total water collecting pipe and the second total water collecting pipe; and the first total water collecting pipe and the second total water collecting pipe are provided with inserting pipes matched with the mounting ports.
The reinforced hollow fiber membrane filtering device has the following beneficial effects:
(1) the first filtering device, the second filtering device and the third filtering device are sequentially arranged from top to bottom, so that a water source can be deeply purified, the water quality of outlet water is favorably improved, wherein a stainless steel filter screen can filter large-particle impurities in the water source, such as waterweeds, silt and the like, an activated carbon filter element can remove peculiar smell and fine impurities in the water source, and a hollow fiber membrane component can carry out ultrafiltration on the water source to effectively remove particles, colloid, bacteria and high-molecular organic substances in the water source;
(2) the water storage tank is provided with the water outlet joint, the water outlet joint is connected with the water outlet on the shell through the sealing plug, so that the whole water storage tank can be moved out when the hollow fiber membrane component needs to be replaced, the inserted rod is separated from the sealing plug when the hollow fiber membrane component is moved out, the sealing plug returns to the sealing position under the action of the spring, and the water in the water storage tank can be effectively prevented from overflowing;
(3) the second filtering device is connected with the water storage tank through the water outlet hose, so that the water storage tank can be moved out only by pulling the water outlet hose, and the operation is convenient;
(4) set up the water storage chamber in the bottom of box, can gather together the clear water in first total collector pipe and the total collector pipe of second, and the dismouting of the hollow fiber membrane module of being convenient for, during the dismantlement, only need upwards mention the hollow fiber membrane module hard for the pipe of pegging graft can with the separation of corresponding installing port, and when the installation, only need press the hollow fiber membrane module hard downwards, make the pipe of pegging graft in corresponding installing port, make first total collector pipe and the total collector pipe of second and water storage chamber intercommunication can.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of a reinforced hollow fiber membrane filtration apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a third filter device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a hollow fiber membrane module according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a sealing joint and a water outlet according to an embodiment of the present invention.
Reference numerals:
1-a shell; 11-a water inlet; 12-a water outlet; 121-a plunger; 2, a booster pump; 3-a first filtration device; 31-stainless steel screen; 4-a second filtration device; 41-an active carbon filter element; 5-a third filtration device; 51-a box body; 52-case lid; 53-water storage cavity; 531-mounting port; 54-water outlet joint; 6-hollow fiber membrane module; 61-curtain hollow fiber membranes; 611-a first water collecting pipe; 612-a second header pipe; 613-hollow fiber membrane; 62-a first main header pipe; 63-a second header pipe; 64-a support bar; 7-sealing the joint; 71-a sealing sleeve; 72-a sealing plug; 721-sliding sleeve; 73-a guide bar; 74-spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the present embodiment provides a reinforced hollow fiber membrane filtration device, which includes a housing 1, wherein a door body capable of being opened by rotating is arranged on one side of the housing 1; the top of this casing 1 is provided with water inlet 11, and the lateral wall lower part of this casing 1 is provided with delivery port 12, and casing 1 is inside from last booster pump 2, first filter equipment 3, second filter equipment 4 and the third filter equipment 5 of having set gradually under to.
The inlet of the first filtering device 3 is connected with the outlet of the booster pump 2, and a stainless steel filter screen 31 is arranged in the first filtering device for filtering large-particle impurities in a water source, such as silt and float grass.
The entry of above-mentioned second filter equipment 4 and first filter equipment 3's exit linkage, and be provided with active carbon filter 41 in the second filter equipment 4, this active carbon filter 41 specifically is the ring column shape, top and bottom in the inside of second filter equipment 4 all are provided with the holding ring, the periphery of active carbon filter 41 and the interior circumference butt of two holding rings, and the entry of second filter equipment 4 is located active carbon filter 41 periphery, the export is located active carbon filter 41 interior circumference, and be connected with out the water hose in the exit of this second filter equipment 4.
The third filter device 5 includes a water tank having a tank body 51 and a tank cover 52 which are hermetically connected, and the tank cover 52 is provided with a water inlet which is hermetically connected to the water outlet hose. A hollow fiber membrane module 6 is arranged in a box body 51, a water storage cavity 53 communicated with the hollow fiber membrane module 6 is arranged at the bottom of the box body 51, a water outlet joint 54 is arranged at the bottom of the side wall of the box body 51, an outlet of a third filtering device is formed at the position of the water outlet joint 54, a sealing joint 7 is in threaded connection with the water outlet joint 54, the sealing joint 7 comprises a sealing sleeve 71 and a sealing plug 72 which is in sliding connection in the sealing sleeve 71, a support member is arranged in the sealing sleeve, a guide rod 73 is arranged on the support member, a sliding sleeve 721 matched with the guide rod 73 is arranged on the sealing plug 72, the guide rod 73 is slidably arranged in the sliding sleeve 721 in a penetrating manner, a spring 74 is sleeved on the periphery of the guide rod 73, and two ends of the spring; an insert rod 121 is arranged in the water outlet 12, when the sealing joint 7 is inserted at the water outlet 12, the sealing plug 72 can make a linear motion from a sealing position to a conducting position under the action of the insert rod 121, when the sealing plug 72 is positioned at the sealing position, the outer periphery of the sealing plug 72 is tightly abutted with the inner periphery of the sealing sleeve 71, and when the sealing plug 72 is positioned at the conducting position, the outer periphery of the sealing plug 72 is separated from the inner periphery of the sealing sleeve 71.
In this embodiment, the outer circumference of the sealing plug 72 is tapered, the diameter of the sealing plug is gradually reduced along the direction away from the guide rod 73, and the inner circumference of the sealing sleeve 71 is provided with a tapered surface adapted to the sealing plug 72, and the taper of the tapered surface is consistent with that of the sealing plug.
Further, the bottom of the water storage chamber 53 is sealed, and the top thereof is provided with a plurality of mounting ports 531 penetrating the bottom wall of the tank 51, and the hollow fiber membrane module 6 communicates with the water storage chamber 53 through the mounting ports.
Specifically, the hollow fiber membrane module 6 includes a plurality of curtain-type hollow fiber membranes 61 arranged at intervals, the curtain-type hollow fiber membranes 61 including a first header pipe 611 and a second header pipe 612, and hollow fiber membranes 613 connected between the first header pipe 611 and the second header pipe 612; the bottoms of the first water collecting pipes 611 are communicated with the first total water collecting pipe 62, the bottoms of the second water collecting pipes 612 are communicated with the second total water collecting pipe 63, and a plurality of support rods 64 are connected between the first total water collecting pipe 62 and the second total water collecting pipe 63; the first total water collecting pipe 62 and the second total water collecting pipe 63 are provided with insertion pipes adapted to the mounting ports 531, bosses are provided on the peripheries of the insertion pipes, and the bottoms of the bosses are abutted to the bottom wall of the box body 51.
The enhancement mode hollow fiber membrane filter equipment of this embodiment can carry out multi-level purification to the water source, improves the filter effect at water source. When the hollow fiber membrane component 6 needs to be replaced, the water in the filtering device is emptied, then the door of the shell 1 is opened, the water storage tank is pulled out outwards, the water outlet hose of the second filtering device 4 is pulled out, then, the tank cover 52 is opened, the hollow fiber membrane module 6 is lifted upward, a new hollow fiber membrane module 6 is replaced, at the time of replacement, the insertion pipe of the hollow fiber membrane module 6 is aligned with the mounting port 531 of the tank body 51, then the hollow fiber membrane module 6 is pressed downwards by force until the lug boss on the inserting pipe is abutted against the bottom wall of the box body 51, at the moment, the hollow fiber membrane module is communicated with the water storage cavity 53, then the cover 52 is buckled on the top of the box body 51, the water storage tank is pushed back into the shell 1, and the water outlet hose is connected, when the sealing joint 7 is inserted into the water outlet 12, the plug rod 121 opens the sealing plug 72, so that the water outlet joint 54 is communicated with the water outlet 12, and the filtering device can be normally used.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.

Claims (7)

1. The utility model provides an enhancement mode hollow fiber membrane filter equipment, includes the casing, and the top of this casing is provided with the water inlet, and the lateral wall lower part of this casing is provided with the delivery port, inside booster pump, first filter equipment, second filter equipment and the third filter equipment of having set gradually under to from last of casing, its characterized in that:
an inlet of the first filtering device is connected with an outlet of the booster pump, and a stainless steel filter screen is arranged inside the first filtering device;
the inlet of the second filtering device is connected with the outlet of the first filtering device, and an activated carbon filter element is arranged in the second filtering device;
the inlet of the third filtering device is connected with the outlet of the second filtering device, the outlet of the third filtering device is detachably connected with the water outlet, and a hollow fiber membrane assembly is detachably and fixedly connected in the third filtering device.
2. A reinforced hollow fiber membrane filtration device according to claim 1, wherein:
the third filtering device comprises a water storage tank, and the hollow fiber membrane component is arranged in the water storage tank;
a water outlet joint is arranged at the bottom of the side wall of the water storage tank, an outlet of the third filtering device is formed at the water outlet joint, and a sealing joint is detachably and fixedly connected to the water outlet joint;
the sealing joint comprises a sealing sleeve and a sealing plug connected in the sealing sleeve in a sliding manner, a support part is arranged in the sealing sleeve, a guide rod is arranged on the support part, a sliding sleeve matched with the guide rod is arranged on the sealing plug, the guide rod is arranged in the sliding sleeve in a penetrating manner in a sliding manner, a spring is sleeved on the periphery of the guide rod, and two ends of the spring are respectively abutted against the support part and the sealing plug;
the water outlet is internally provided with an inserted link, the sealing joint is inserted at the water outlet, the sealing plug can make linear motion from a sealing position to a conducting position under the action of the inserted link, when the sealing plug is positioned at the sealing position, the periphery of the sealing plug is tightly abutted against the inner periphery of the sealing sleeve, and when the sealing plug is positioned at the conducting position, the periphery of the sealing plug is separated from the inner periphery of the sealing sleeve.
3. A reinforced hollow fiber membrane filtration unit according to claim 2, wherein:
the periphery of the sealing plug is conical, the diameter of the sealing plug is gradually reduced along the direction far away from the guide rod, a conical surface matched with the sealing plug is arranged on the inner periphery of the sealing sleeve, and the taper of the conical surface is consistent with that of the sealing plug.
4. A reinforced hollow fiber membrane filtration device according to claim 1, wherein:
the top and the bottom of second filter equipment's inside all are provided with the holding ring, activated carbon filter's periphery and two the interior week butt of holding ring, just activated carbon filter is the ring column shape, second filter equipment's entry is located activated carbon filter periphery, just second filter equipment's export is located activated carbon filter's interior week.
5. A reinforced hollow fiber membrane filtration unit according to claim 2, wherein:
the outlet of the second filtering device is connected with a water outlet hose;
the water storage tank comprises a tank body and a tank cover which are in sealing connection, and a water inlet in sealing connection with the water outlet hose is formed in the tank cover.
6. A reinforced hollow fiber membrane filtration unit according to claim 5, wherein:
the bottom in box is provided with the water storage chamber, and the bottom in this water storage chamber is sealed, and the top is provided with a plurality of installing ports, and this installing port link up the diapire of box, hollow fiber membrane module passes through the installing port with water storage chamber intercommunication, just the water storage chamber with go out water connector intercommunication.
7. A reinforced hollow fiber membrane filtration device according to claim 6, wherein:
the hollow fiber membrane component comprises a plurality of curtain type hollow fiber membranes arranged at intervals, each curtain type hollow fiber membrane comprises a first water collecting pipe, a second water collecting pipe and a hollow fiber membrane connected between the first water collecting pipe and the second water collecting pipe;
the bottoms of the first water collecting pipes are communicated with a first total water collecting pipe, the bottoms of the second water collecting pipes are communicated with a second total water collecting pipe, and a plurality of support rods are connected between the first total water collecting pipe and the second total water collecting pipe;
and the first total water collecting pipe and the second total water collecting pipe are provided with inserting pipes matched with the mounting ports.
CN202011499810.8A 2020-12-17 2020-12-17 Enhancement mode hollow fiber membrane filter equipment Pending CN112777764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011499810.8A CN112777764A (en) 2020-12-17 2020-12-17 Enhancement mode hollow fiber membrane filter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011499810.8A CN112777764A (en) 2020-12-17 2020-12-17 Enhancement mode hollow fiber membrane filter equipment

Publications (1)

Publication Number Publication Date
CN112777764A true CN112777764A (en) 2021-05-11

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Application Number Title Priority Date Filing Date
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161426A (en) * 2011-12-15 2013-06-19 中国石油天然气股份有限公司 Flow-dividing type check valve
CN204454769U (en) * 2015-02-11 2015-07-08 厦门科牧智能技术有限公司 A kind of toilet fore filter
CN105712516A (en) * 2016-03-31 2016-06-29 江苏永尚能源科技有限公司 Pre-treatment device of direct drinking machine
CN106079995A (en) * 2016-07-28 2016-11-09 李凤阳 A kind of coolant segregation apparatus under vacuum processing environment
CN108506526A (en) * 2018-05-28 2018-09-07 杭州老板电器股份有限公司 Triple valve and purifier
CN109133458A (en) * 2018-10-25 2019-01-04 益阳玲智工程技术有限公司 A kind of filter core intelligence switching water correction plant
CN209039190U (en) * 2018-05-23 2019-06-28 北京市工贸技师学院 A kind of no electric-type device for purifying potable water
CN109944957A (en) * 2019-03-16 2019-06-28 刘旭 A kind of manufacturing process automatically controlling urgent anti-leakage valve
CN209352662U (en) * 2019-01-09 2019-09-06 广西建设职业技术学院 A kind of membrane module for water process
CN209428320U (en) * 2018-10-12 2019-09-24 广州能淼环保科技有限公司 A kind of antibacterial enhancement type hollow fiber film filter device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161426A (en) * 2011-12-15 2013-06-19 中国石油天然气股份有限公司 Flow-dividing type check valve
CN204454769U (en) * 2015-02-11 2015-07-08 厦门科牧智能技术有限公司 A kind of toilet fore filter
CN105712516A (en) * 2016-03-31 2016-06-29 江苏永尚能源科技有限公司 Pre-treatment device of direct drinking machine
CN106079995A (en) * 2016-07-28 2016-11-09 李凤阳 A kind of coolant segregation apparatus under vacuum processing environment
CN209039190U (en) * 2018-05-23 2019-06-28 北京市工贸技师学院 A kind of no electric-type device for purifying potable water
CN108506526A (en) * 2018-05-28 2018-09-07 杭州老板电器股份有限公司 Triple valve and purifier
CN209428320U (en) * 2018-10-12 2019-09-24 广州能淼环保科技有限公司 A kind of antibacterial enhancement type hollow fiber film filter device
CN109133458A (en) * 2018-10-25 2019-01-04 益阳玲智工程技术有限公司 A kind of filter core intelligence switching water correction plant
CN209352662U (en) * 2019-01-09 2019-09-06 广西建设职业技术学院 A kind of membrane module for water process
CN109944957A (en) * 2019-03-16 2019-06-28 刘旭 A kind of manufacturing process automatically controlling urgent anti-leakage valve

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Application publication date: 20210511