CN211800061U

CN211800061U - A reposition of redundant personnel end cover for DTRO membrane module

Info

Publication number: CN211800061U
Application number: CN202020024446.9U
Authority: CN
Inventors: 詹诗君
Original assignee: Hangzhou Ouxirui Environmental Technology Co ltd
Current assignee: Hangzhou Ouxirui Environmental Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-10-30
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a shunting end cover for a DTRO membrane component, which belongs to the technical field of a disc tube type reverse osmosis membrane component and comprises a water inlet and outlet end cover and an upper end cover, wherein the center of the water inlet and outlet end cover is provided with a first central through hole matched with a central pull rod, the side wall of the water inlet and outlet end cover is provided with a first sealing ring groove, one side of the water inlet and outlet end cover, which is positioned at the first central through hole, is provided with a water outlet through hole, the other side of the water inlet and outlet end cover is provided with a water inlet blind hole, one side of the water inlet and outlet end cover is provided with a first shunting groove communicated with the blind hole corresponding to the water inlet blind hole, the center of the upper end cover is provided with a second central through hole matched with the central pull rod, the side wall of the upper end cover is provided with a convex edge corresponding to the end part of one side edge of, the impact force of the high-pressure liquid on the diaphragm is reduced, and the tightness of the device is greatly enhanced.

Description

A reposition of redundant personnel end cover for DTRO membrane module

Technical Field

The utility model relates to a dish tubular reverse osmosis membrane subassembly technical field, more specifically relate to a reposition of redundant personnel end cover for DTRO membrane module.

Background

The end cover mainly has the following functions in the disc-tube type membrane component: 1. the outer cylinder and the fastening bolt are connected to form a sealing space for sealing; 2. when the equipment runs, certain high pressure is formed in the membrane column, and the water inlet end cover plays a role in bearing pressure; 3. the device is provided with a water inlet, a water outlet and a fresh water port which are respectively connected with a water inlet pipe, a water outlet pipe and a fresh water pipe, and plays a role in guiding water inflow, water outflow and fresh water.

As shown in fig. 1 (1-first end cover, 2-second water end cover, 3-central pull rod, 4-sleeve, 5-diaphragm, 6-deflector, 7-pure water gap, 8-water inlet, 9-water outlet, 10-fastening bolt), the connection mode of water inlet, water outlet and end cover at the existing end cover is mostly screw thread, the screw thread is screwed tightly to connect with poor sealing performance, water leakage is easy to occur during high pressure operation, the sewage treatment capacity of the disc-tube type reverse osmosis membrane component is in direct proportion to the operating pressure, when the operating pressure is increased, the further concentration and purification of the materials are difficult to be carried out, the recovery rate of the available materials is greatly limited, the impact force on the diaphragm is larger, the damage to the internal elements is increased, and the service life of the disc-tube type reverse osmosis membrane component is reduced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a reposition of redundant personnel end cover for DTRO membrane module, it can realize shunting the high-pressure liquid that gets into in the pipe network formula membrane post, reduces the impact force of high-pressure liquid to the diaphragm, improves the life of device and closely cooperates through each sealing washer and upper end cover sealing seat and inlet tube, outlet pipe, pure water outlet pipe, pressure-resistant sleeve, central pull rod, has greatly strengthened the leakproofness of device, has avoided the leakage of liquid.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a reposition of redundant personnel end cover for DTRO membrane module, includes business turn over water end cover and upper end cover, business turn over water end cover's center seted up with the first central through-hole of central pull rod complex, be equipped with first seal ring groove on business turn over water end cover's the lateral wall, business turn over water end cover is located the play water through-hole has been seted up to one side of first central through-hole, and the blind hole that intakes has been seted up to the opposite side, one side of business turn over water end cover corresponds the blind hole that intakes sets up the first diversion groove that link up with the blind hole that intakes, the center of upper end cover is seted up with central pull rod complex second central through-hole, be equipped with second seal ring groove on the lateral wall of upper end cover, the upper end cover corresponds one side edge tip of business turn over water end cover is. The working principle of the disc-tube reverse osmosis membrane is that feed liquid enters a bottom flow guide disc through a flow guide channel after passing through a gap between a membrane stack and a shell, the treated liquid rapidly flows through a filtering membrane at the shortest distance, then the treated liquid is reversed to another membrane surface by 180 degrees and flows into the next filtering membrane, so that the liquid is formed from the periphery of the flow guide disc to the center of the circle on the surface of the membrane, then the liquid flows to the circumference and is filtered by tangential flow at the center of the circle, concentrated liquid finally flows out from a flange at a feed end, and when the feed liquid flows through the filtering membrane, the permeate liquid is continuously discharged through a central collecting pipe. The concentrated solution and the permeate liquid are isolated by an O-shaped sealing ring arranged on the flow guide disc. When the technical scheme is adopted for use, one end of a central pull rod sleeved with the diversion disc and the reverse osmosis disc membrane passes through the first central through hole to be sleeved with the water inlet and outlet end cover, the other end of the central pull rod passes through the second central through hole to be sleeved with the upper end cover, the central pull rod is fixedly locked by the fastening bolt, then the pressure-resistant sleeve is sleeved outside the end cover, the sealing rings are sleeved in the first sealing ring groove and the second sealing ring groove, and the sealing tightness among the water inlet and outlet end cover, the upper end cover and the pressure-resistant sleeve is enhanced. Set up the blind hole of intaking and the first reposition of redundant personnel groove that link up with the blind hole of intaking in business turn over water end cover department, high-pressure liquid that will get into in the blind hole of intaking shunts, realize reducing the impact force of high-pressure liquid to the diaphragm at equal pressure drop, reduce the damage to the interior component of membrane column, the life of improving device and through the route of reposition of redundant personnel decompression, can realize improving the concentrated purification to the material under equal operating pressure, and set up the second reposition of redundant personnel groove on the upper end cover, realize the evenly distributed to rivers, the even atress of guarantee diaphragm, avoid because of the too big washing away damage to the diaphragm of local pressure.

Furthermore, first central through hole is the shoulder hole, including being located the big round hole of blind hole one side of intaking with keep away from the little round hole of blind hole one side of intaking. The small round hole is matched with the central pull rod, and the large round hole is connected with the pure water outlet pipe through the O-shaped sealing ring, so that the sealing tightness is improved.

Furthermore, one side of the water inlet and outlet end cover, which is far away from the water inlet blind hole, is provided with an annular groove around the periphery of the first central through hole. One side of business turn over water end cover and the laminating of flow guide plate, the setting of annular groove guarantees the complex tightness.

Furthermore, a conical surface is formed at the joint of the annular groove and the first central through hole.

Further, the number of the second diversion grooves is eight. The second diversion trench is uniformly distributed, so that the uniformity of water flow is guaranteed.

Furthermore, the second central through hole is a stepped through hole, and an upper end cover sealing piece seat which is matched with the stepped through hole to play a sealing role is arranged in one side, close to the second diversion groove, of the second central through hole. The upper end cover sealing piece seat matched with the upper end cover through the sealing ring is arranged in the second central through hole, so that the matching tightness of the upper end cover and the central pull rod is improved.

Furthermore, the upper end cover sealing piece seat is a cylindrical mechanism, a third central through hole matched with the central pull rod is formed in the middle of the upper end cover sealing piece seat, and the upper end cover sealing piece seat is matched with the second central through hole.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the utility model discloses a set up the second diversion groove on the blind hole of intaking and first diversion groove and the upper end cover that link up each other on business turn over water end cover, realize shunting the high-pressure liquid that gets into in the pipe network formula diaphragm column, reduce the impact force of high-pressure liquid to the diaphragm, improve device's life and through the route of reposition of redundant personnel decompression, can realize improving the concentrated purification to the material under equal operating pressure.

(2) The utility model discloses an use each sealing washer and upper end cap seal seat to realize with the inseparable cooperation of inlet tube, outlet pipe, pure water outlet pipe, pressure sleeve, central pull rod, greatly strengthened the tightness of device, avoided the leakage of liquid.

Drawings

FIG. 1 is a schematic structural diagram of a prior art end cap in a disc-tube membrane module;

fig. 2 is a schematic front structural view of a water inlet and outlet end cap according to an embodiment of the present invention;

fig. 3 is a schematic back structural view of a water inlet/outlet end cap according to an embodiment of the present invention;

fig. 4 is a schematic front structural view of an upper end cap according to an embodiment of the present invention;

fig. 5 is a schematic back structural view of an upper end cap according to an embodiment of the present invention;

fig. 6 is a schematic view of an upper end cap seal seat according to an embodiment of the present invention.

The reference numbers in the figures illustrate:

1 first end cover, 2 second end cover, 3 center pull rod, 4 sleeves, 5 diaphragms, 6 diversion disks, 7 pure water inlet, 8 water inlet, 9 water outlet, 10 fastening bolts, 11 water inlet and outlet end covers, 12 upper end cover, 13 first center through hole, 14 first seal ring groove, 15 water outlet through hole, 16 water inlet blind hole, 17 first diversion groove, 18 second center through hole, 19 second seal ring groove, 20 raised edge, 21 second diversion groove, 22 big round hole, 23 small round hole, 24 annular groove, 25 upper end cover seal seat and 26 third center through hole.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-6, a flow splitting end cap for a DTRO membrane module includes a water inlet and outlet end cap 11 and an upper end cap 12. The side wall of the water inlet and outlet end cover 11 is provided with a first sealing ring groove 14, the center of the water inlet and outlet end cover is provided with a first central through hole 13 matched with the central pull rod, and the first central through hole 13 is a stepped hole and comprises a large round hole 22 positioned on one side of the water inlet blind hole 16 and a small round hole 23 positioned on one side far away from the water inlet blind hole 16. The water inlet and outlet end cover 11 is provided with a water outlet through hole 15 at one side of the first central through hole 13 and a water inlet blind hole 16 at the other side, and a first diversion groove 17 communicated with the water inlet blind hole 16 is formed at one side of the water inlet and outlet end cover 11 corresponding to the water inlet blind hole 16. An annular groove 24 is formed around the first central through hole 13 at one side of the water inlet and outlet end cover 11 far away from the water inlet blind hole 16, and a conical surface is formed at the joint of the annular groove 24 and the first central through hole 13. A second sealing ring groove 19 is arranged on the side wall of the upper end cover 12, a second central through hole 18 matched with the central pull rod is arranged in the center, the second central through hole 18 is a stepped through hole, and an upper end cover sealing piece seat 25 matched with the stepped through hole for sealing is arranged in one side, close to the second diversion groove 21, of the second central through hole 18. The upper end cover sealing piece seat 25 is a cylindrical mechanism, a third central through hole 26 matched with the central pull rod is formed in the middle of the upper end cover sealing piece seat, and the upper end cover sealing piece seat 25 is matched with the second central through hole 18. The end part of one side edge of the upper end cover 12 corresponding to the water inlet and outlet end cover 11 is provided with a raised edge 20, the periphery of the raised edge 20 is provided with eight second diversion grooves 21 which are uniformly distributed at intervals.

When in use, one end of a central pull rod sleeved with a diversion disc and a reverse osmosis disc membrane passes through a first central through hole 13 and is sleeved with a water inlet and outlet end cover 11, the other end passes through a second central through hole 18 and is sleeved with an upper end cover 12, the central pull rod is fixedly locked by a fastening bolt, then a pressure-resistant sleeve is sleeved outside the end cover, a first sealing ring groove 14, a second sealing ring groove 19 are sleeved with sealing rings, an upper end cover sealing seat 26 is sleeved in the upper end cover 12 and is tightly matched with the central pull rod through a third central through hole 26, a large circular hole 22 is tightly matched with a pure water outlet pipe through a sealing ring, a water outlet through hole, a water inlet blind hole is tightly matched with a water outlet pipe and a water inlet pipe through a sealing ring, and a ring groove 24 is tightly matched with the diversion disc, the tightness of sealing between the water inlet and outlet end cover 11, the upper end cover 12 and the pressure-resistant sleeve, between the, the tightness of the device seal is greatly enhanced, and the liquid leakage is avoided. Set up into water blind hole 16 and with the first reposition of redundant personnel 17 that intake blind hole 16 link up in business turn over water end cover 11 department, high-pressure liquid that will get into in the water blind hole 16 shunts, the realization is reduced the impact force of high-pressure liquid to the diaphragm at equal pressure, reduce the damage to the interior component of diaphragm column, the life of the improvement device and through the route of reposition of redundant personnel decompression, can realize improving the concentrated purification to the material under equal operating pressure, and set up second reposition of redundant personnel chute 21 on upper end cover 12, realize the evenly distributed to rivers, the even atress of guarantee diaphragm, avoid damaging because of the too big washing away of local pressure to the diaphragm.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. A reposition of redundant personnel end cover for DTRO membrane module, includes business turn over water end cover (11) and upper end cover (12), its characterized in that: a first central through hole (13) matched with the central pull rod is arranged at the center of the water inlet and outlet end cover (11), a first sealing ring groove (14) is arranged on the side wall of the water inlet and outlet end cover (11), one side of the water inlet and outlet end cover (11) positioned at the first central through hole (13) is provided with a water outlet through hole (15), the other side is provided with a water inlet blind hole (16), one side of the water inlet and outlet end cover (11) is provided with a first diversion groove (17) which is communicated with the water inlet blind hole (16) and corresponds to the water inlet blind hole (16), a second central through hole (18) matched with the central pull rod is arranged at the center of the upper end cover (12), a second sealing ring groove (19) is arranged on the side wall of the upper end cover (12), a raised edge (20) is arranged at the end part of one side edge of the upper end cover (12) corresponding to the water inlet and outlet end cover (11), and second shunting grooves (21) which are uniformly distributed at intervals are formed around the raised edge (20).

2. The split-flow end cap for a DTRO membrane module of claim 1, wherein: first central through hole (13) are the shoulder hole, including being located big round hole (22) of blind hole (16) one side of intaking and keeping away from little round hole (23) of blind hole (16) one side of intaking.

3. The split-flow end cap for a DTRO membrane module of claim 1, wherein: and an annular groove (24) is formed in one side, far away from the water inlet blind hole (16), of the water inlet and outlet end cover (11) and surrounds the periphery of the first central through hole (13).

4. The split-flow end cap for a DTRO membrane module of claim 3, wherein: the joint of the annular groove (24) and the first central through hole (13) forms a conical surface.

5. The split-flow end cap for a DTRO membrane module of claim 1, wherein: the number of the second diversion grooves (21) is eight.

6. The split-flow end cap for a DTRO membrane module of claim 1, wherein: the second central through hole (18) is a stepped through hole, and an upper end cover sealing piece seat (25) which is matched with the stepped through hole to play a sealing role is arranged in one side, close to the second diversion groove (21), of the second central through hole (18).

7. The split-flow end cap for a DTRO membrane module of claim 6, wherein: the upper end cover sealing piece seat (25) is a cylindrical mechanism, a third central through hole (26) matched with the central pull rod is formed in the middle of the upper end cover sealing piece seat, and the upper end cover sealing piece seat (25) is matched with the second central through hole (18).