CN218853983U

CN218853983U - Immersed ultrafiltration membrane component air tightness detection device

Info

Publication number: CN218853983U
Application number: CN202222231450.4U
Authority: CN
Inventors: 任要东; 吕天瑞; 郑书盈; 朱慧可; 于江水
Original assignee: Jiangsu Daoke Environment Technology Co ltd
Current assignee: Jiangsu Daoke Environment Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-04-14
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses an air tightness detection device of an immersed ultrafiltration membrane component, which comprises a flange central hole cover plate, a monofilament connecting pipe, a valve and a pressure reducing valve; an air hole is formed in the middle of the flange central hole cover plate and can be matched with the monofilament connecting pipe for installation; a gasket is arranged on the other side, matched with the monofilament connecting pipe, of the flange central hole cover plate; the outer side of the monofilament connecting pipe is communicated with the valve and the pressure reducing valve through a quick connector and an air pipe and is used for being communicated with an air source. The utility model discloses can improve submergence formula milipore filter subassembly installation and maintenance process's efficiency. On the premise of saving labor and cost, the air tightness detection in the installation and maintenance process of the immersed ultrafiltration membrane component is convenient, safe, quick and efficient. The device is manufactured in consideration of economy and applicability, is arranged in a detachable assembly mode, and is convenient to transport, assemble and store. Can be recycled for a long time on the premise that the material is not corroded, abraded, cracked and the like.

Description

Immersed ultrafiltration membrane component air tightness detection device

Technical Field

The utility model belongs to the technical field of water treatment, concretely relates to airtightness detection device in plumbing submergence formula ultrafiltration membrane system installation and maintenance process.

Background

Ultrafiltration is a membrane separation technique that purifies and separates a solution, and ultrafiltration membranes are artificial filtration membranes used in ultrafiltration processes. Typically made of polymeric materials such as PVDF, PP, PS, etc. The ultrafiltration membrane is a solution separation device which takes ultrafiltration membrane filaments as a filter medium and takes the pressure difference between two sides of the membrane as a driving force. The ultrafiltration membrane only allows the solvent (such as water molecules), inorganic salt and soluble organic matters in the solution to permeate, and retains suspended matters, colloids, microorganisms and the like in the solution, thereby achieving the purposes of purification and separation. At present, ultrafiltration membranes are widely used in water treatment processes, and ultrafiltration technologies play an increasingly important role in the fields of reverse osmosis pretreatment, drinking water treatment, reclaimed water recycling and the like.

The traditional method for detecting air tightness in the installation and maintenance process of the immersed ultrafiltration membrane component is usually carried out in a mode of integrally pressing after all immersed ultrafiltration membrane components of a single membrane pool are butted, and at the moment, the water collecting pipe and the main water producing pipe are fixed through a flange. If the air tightness of the ultrafiltration membrane components is poor, the fixed water collecting pipe and the main water production pipe need to be detached, the ultrafiltration membrane components are lifted out for inspection and repair, after the treatment is finished, the ultrafiltration membrane components are lifted back to the membrane tank, the water collecting pipe and the main water production pipe are fixed again, and then all the ultrafiltration membrane components in a single ultrafiltration membrane tank need to be subjected to air tightness detection, and if leakage occurs again, the operation needs to be repeated. The traditional method is time-consuming and labor-consuming, low in efficiency, and easy to cause damage to the stainless steel bolt due to repeated disassembly, and the service life of the stainless steel bolt is influenced.

Disclosure of Invention

In order to solve the problems existing in the method, the utility model provides a device for rapidly detecting the air tightness in the installation and maintenance process of an immersed ultrafiltration membrane component. The device can carry out the air tightness rapid detection on a single water collecting pipe which is provided with the ultrafiltration membrane component before the water collecting pipe is butted with the water production main pipe.

In order to achieve the above object, the utility model adopts the following technical scheme:

an air tightness detection device of an immersed ultrafiltration membrane component comprises a flange central hole cover plate, a monofilament connecting pipe, a valve, a quick connector, an air pipe and a pressure reducing valve.

An air hole is formed in the middle of the flange central hole cover plate and can be matched with the single-wire connecting pipe for installation; a gasket is arranged on the other side of the flange central hole cover plate matched with the monofilament connecting pipe;

the outer side of the monofilament connecting pipe is communicated with a valve, a pressure reducing valve and an air source through a quick connector and an air pipe.

Furthermore, the thickness of the central hole cover plate of the flange is 3-10mm, so that the central hole cover plate can bear certain air pressure, 4-8 connecting bolt holes are formed in the periphery of the central hole cover plate, the central hole cover plate can be in butt joint with a flange of a water collecting pipe of the immersed ultrafiltration membrane assembly through a connecting piece for fixing, and the central hole cover plate is convenient to disassemble.

Furthermore, an air hole in the cover plate of the central hole of the flange is arranged at the central position, and the air hole is fixed with the single-wire connecting pipe in a welding mode.

Furthermore, the length of the monofilament connecting pipe is 2-15cm.

Furthermore, the valve is a manual valve, the valve is connected with the air pipe through a quick connector, the manual valve is connected with the monofilament connecting pipe through a first air pipe, the length of the first air pipe is 15-50cm, and butt joint and disassembly operation of the air pipe and the monofilament connecting pipe are facilitated.

Furthermore, the other end of the manual valve is connected with the air outlet end of the pressure reducing valve through a second air pipe, and the length of the second air pipe is 1-6m.

Furthermore, an air inlet of the pressure reducing valve is connected with a third air pipe communicated with an air source through a quick connector, and the pressure reducing valve can control the air pressure during air tightness detection.

The utility model embeds a special rapid detection device on the basis of air tightness detection in the installation and maintenance process of the traditional immersed ultrafiltration membrane component, and when the air tightness detection is good, the water collecting pipe is fixedly butted with the water production main pipe; when the gas tightness detected badly, easily observe the leak point, convenient repair was handled, and this device of rethread detects after handling the completion, and it is good to detect the gas tightness, again with the collector pipe with produce the water and be responsible for the butt joint fixed. The device saves time and labor and cost, and greatly improves the efficiency of installation and maintenance of the membrane module.

The utility model discloses can improve submergence formula milipore filter subassembly installation and maintenance process's efficiency. On the premise of saving labor and cost, the air tightness detection in the installation and maintenance process of the immersed ultrafiltration membrane component is convenient, safe, quick and efficient. The economy, the suitability are considered in the preparation of this device, set up to removable assecmbly's form, are convenient for transport, equipment and deposit. Can be recycled for a long time on the premise that the material is not damaged by corrosion, abrasion, cracking and the like.

Additionally, the utility model discloses the swift of gas tightness detects in applicable all submergence formula milipore filter subassembly installation and maintenance process, produces the preparation specification of water end flange specification and the adjustable this device of on-the-spot reserved air supply mouth specification according to concrete collector pipe, for submergence formula milipore filter subassembly installation and maintenance process have unified the method of the swift detection device preparation of gas tightness, have set up solid basis for the development of milipore filter system in domestic water treatment field.

Drawings

Fig. 1 is a structural diagram of an air tightness detection device of an immersed ultrafiltration membrane component in an embodiment of the present invention.

Fig. 2 is a schematic diagram of a flange central hole cover plate of the gas tightness detection device of the immersed ultrafiltration membrane component of the embodiment of the present invention.

In the figure, 1 is a flange central hole cover plate, 2 is a monofilament connecting pipe, 3 is a quick connector, 4 is a first air pipe, 5 is a second air pipe, 6 is a third air pipe, 7 is a manual valve, 8 is a pressure reducing valve, 9 is an air source, 10 is a gasket, 11 is an air hole, and 12 is a connecting hole.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and the accompanying drawings.

As shown in fig. 1-2, an air tightness detection device for an immersed ultrafiltration membrane module comprises a flange central hole cover plate 1, a monofilament connecting pipe 2, a valve, a quick connector 3, an air pipe and a pressure reducing valve 8. An air hole 11 is formed in the middle of the flange central hole cover plate 1, and the air hole 11 can be installed in a matched mode with the single-wire connecting pipe 2; a gasket 10 is arranged on the other side of the flange central hole cover plate 1 matched with the monofilament adapter 2; the outer side of the monofilament connecting pipe 2 is communicated with a manual valve 7, a pressure reducing valve 8 and an air source 9 through a quick connector 3 and an air pipe. The thickness of the flange central hole cover plate 1 is 3-10mm, certain air pressure can be borne, 4-8 connecting holes 12 are formed in the periphery of the flange central hole cover plate, the flange central hole cover plate can be in butt joint with a flange of a water collecting pipe of the immersed ultrafiltration membrane component through bolts, and disassembly is convenient. An air hole 11 in the flange central hole cover plate 1 is arranged at the central position, and the air hole 11 is fixed with the monofilament connecting pipe 2 in a welding mode. The length of the monofilament adapter 2 is 2-15cm.

The manual valve 7 is connected with the air pipe through the quick connector 3, the manual valve 7 is connected with the monofilament connecting pipe 2 through the first air pipe 4, the length of the first air pipe 4 is 15-50cm, and butt joint and disassembly operation of the air pipe and the monofilament connecting pipe 2 are facilitated. The other end of the manual valve 7 is connected with the air outlet end of the pressure reducing valve 8 through a second air pipe 5. The length of the second air pipe 5 is 1-6m.

An air inlet 11 of the pressure reducing valve 8 is connected with a third air pipe 6 communicated with an air source 9 through the quick connector 3, and the pressure reducing valve 8 can control the air pressure during air tightness detection.

When in use, the water collecting pipe filled with the immersed ultrafiltration membrane component is hung into the membrane pool, so that the membrane component is immersed below the liquid level of the membrane pool. Then, the central hole cover plate 1 of the flange of the device is connected with a water-producing end flange of the water collecting pipe through bolts (generally, 4 bolts are butted at intervals), and a gasket 10 is arranged in the middle. One end of an air inlet 11 of the pressure reducing valve 8 is connected with an air pipe communicated with an air source 9 through the quick connector 3. Then, the inspection apparatus is connected and fixed, the pressure of the pressure reducing valve 8 is adjusted to a value (typically 100 KPa) satisfying the airtightness detection pressure, and the pressure reducing valve 8 is placed at a safe position outside the membrane tank. Then, the on-site air source 9 is turned on, and the manual valve 7 is turned on, so that the water collecting pipe filled with the immersed ultrafiltration membrane component starts to feed air. And when the pressure of the pressure reducing valve 8 is displayed as a set pressure value, closing the manual valve 7, stopping air intake, stabilizing the pressure for 2-3min, and observing whether continuous bubbles emerge from the liquid level of the membrane pool or not.

If no continuous bubbles emerge, the air pipe connected with the single-wire connecting pipe 2 is pulled out at the quick joint 3, the pressure of the interior of the water collecting pipe is relieved, after the pressure relief is finished, the flange central hole cover plate 1 is disassembled, the gasket 10 is taken out, and then the water collecting pipe is butted with the water production main pipe.

If continuous bubbles emerge from the liquid level of the membrane pool, a leakage point needs to be observed, the reason is found out, the air pipe connected with the monofilament connecting pipe 2 is pulled out at the quick joint 3, the pressure of the inside of the water collecting pipe is relieved, after the pressure relief is finished, the flange central hole cover plate 1 is disassembled, the gasket 10 is taken out, the water collecting pipe is lifted out of the membrane pool, the leakage point is correspondingly treated, and after the treatment is finished, the operation is repeated.

The above embodiment is only for explaining the utility model discloses a technical thought, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.

Claims

1. The utility model provides an submergence formula milipore filter subassembly gas tightness detection device which characterized in that: comprises a flange central hole cover plate, a monofilament connecting pipe, a valve and a reducing valve;

an air hole is formed in the middle of the flange central hole cover plate and can be matched with the monofilament connecting pipe for installation; a gasket is arranged on the other side, matched with the monofilament connecting pipe, of the flange central hole cover plate;

the outer side of the monofilament connecting pipe is communicated with the valve and the pressure reducing valve through a quick connector and an air pipe and is used for being communicated with an air source.

2. The air tightness detection device of the immersed ultrafiltration membrane module as claimed in claim 1, wherein: the thickness of the flange central hole cover plate is 3-10mm, 4-8 connecting bolt holes are formed in the periphery of the flange central hole cover plate, and the flange central hole cover plate can be in butt joint with a flange of a water collecting pipe of the immersed ultrafiltration membrane component through a connecting piece.

3. The air tightness detection device of the immersed ultrafiltration membrane component as claimed in claim 1, wherein: the air hole in the cover plate of the central hole of the flange is arranged at the central position, and the air hole is welded and fixed with the single-wire connecting pipe.

4. An apparatus for detecting the airtightness of an immersed ultrafiltration membrane module according to any one of claims 1 to 3, wherein: the length of the monofilament connecting pipe is 2-15cm.

5. An apparatus for detecting the airtightness of an immersed ultrafiltration membrane module according to any one of claims 1 to 3, wherein: the valve adopts a manual valve, is connected with an air pipe through a quick coupling, and is connected with the monofilament connecting pipe through a first air pipe.

6. The submerged ultrafiltration membrane assembly airtightness detection apparatus according to claim 5, characterized in that: the length of the first air pipe is 15-50cm.

7. The submerged ultrafiltration membrane assembly airtightness detection apparatus according to claim 5, wherein: the other end of the manual valve is connected with the air outlet end of the pressure reducing valve through a second air pipe.

8. The submerged ultrafiltration membrane assembly airtightness detection apparatus according to claim 7, wherein: and the air inlet of the pressure reducing valve is connected with a third air pipe communicated with an air source through a quick connector.

9. The submerged ultrafiltration membrane assembly airtightness detection apparatus according to claim 7, wherein: the length of the second air pipe is 1-6m.