CN220531239U - Membrane module cleaning gun and cleaning device - Google Patents

Abstract

The utility model provides a membrane module cleaning gun and a cleaning device, comprising a water outlet pipe, a spray head and two arc plates; one end of the water outlet pipe is communicated with the water outlet hose through a valve, the other end of the water outlet pipe is communicated with the spray head, water outlet holes are formed in the side wall of the water outlet pipe, the arc plates are used for sealing the water outlet holes, the two arc plates can be movably connected to the water outlet pipe, the arc plates are correspondingly provided with sleeves, and the arc plates are installed on the inner sides of the sleeves. The utility model has the beneficial effects that: the cleaning gun in the direct current flushing mode state is characterized in that water flow is sprayed out from the spray head, peripheral membrane assemblies on two sides of the membrane frame are mainly flushed, a certain preliminary flushing can be carried out on gaps between the membrane assemblies, larger-block sludge is dispersed, the transverse flushing mode is convenient for sludge between membrane wires on the upper end and the lower end of the membrane assemblies, the working efficiency is improved, and the application range of the cleaning gun is widened by switching the flushing mode of the cleaning gun according to the use scene.

Description

Membrane module cleaning gun and cleaning device

Technical Field

The utility model belongs to the technical field of membrane module cleaning, and particularly relates to a membrane module cleaning gun and a cleaning device.

Background

The rural domestic sewage treatment stations are distributed in position, a centralized cleaning point is established, considerable transportation cost is required to be considered, and when offline cleaning is carried out, the membrane assemblies are required to be detached from the membrane frames, so that the method belongs to underground operation, has safety risks, is high in working difficulty, and meanwhile, part of membrane tanks are small in space and inconvenient to detach; therefore, the space volume of the membrane tank and related equipment are considered to be utilized to soak and clean the membrane module, so that on one hand, the transportation cost for transferring to a centralized cleaning point is saved, on the other hand, the working strength of membrane cleaning work is reduced, the cleaning efficiency is improved, the stop operation time of a sewage treatment station is reduced, and the sewage treatment capacity is improved.

The first step of membrane module cleaning needs to wash the membrane module, gets rid of the massive impurity that will adhere to the surface, and at present, the cleaning gun who washes the membrane module all uses is the high-voltage direct current cleaning gun, and the area of once washing is less, and washing efficiency is lower, can carry out effective washing to the periphery, but can form the dead angle in inside, especially between the membrane silk at both ends about the membrane module, can't effectively wash the attachment wherein, and is difficult to handle the condition that the membrane silk of adjacent membrane module is cohered each other, and the washing effect is relatively poor, leads to work efficiency low.

Disclosure of Invention

In view of the foregoing, the present utility model is directed to a cleaning gun and a cleaning device for a membrane module, so as to solve at least one of the above-mentioned problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a membrane module cleaning gun which comprises a water outlet pipe, a spray head and two arc plates; one end of the water outlet pipe is communicated with the water outlet hose through a valve, the other end of the water outlet pipe is communicated with the spray head, water outlet holes are formed in the side wall of the water outlet pipe, the arc plates are used for sealing the water outlet holes, the two arc plates can be movably connected to the water outlet pipe, the arc plates are correspondingly provided with sleeves, and the arc plates are installed on the inner sides of the sleeves.

Further, annular bosses are arranged on the outer sides of the two ends of the sleeve;

the sleeve is a structural member made of rubber, the inner diameter of the sleeve is larger than the outer diameter of the arc-shaped plate, annular grooves are formed in the outer sides of the two ends of the sleeve, and hoops are arranged in the annular grooves.

Further, a groove corresponding to the water outlet hole is formed in the outer side wall of the water outlet pipe, and a gasket corresponding to the groove is arranged on the inner side of the arc-shaped plate.

Further, an internal thread is arranged in one end, close to the spray head, of the water outlet pipe, one end of the valve is in threaded connection with the spray head, the other end of the valve is arranged on the inner side of the water outlet pipe and in threaded connection with the water outlet pipe, and a sealing gasket is arranged between the valve and the water outlet pipe.

Further, the water outlet hose is connected with the water outlet pipe through a pipeline connecting assembly, the pipeline connecting assembly comprises a nut and a connecting pipe, one end of the connecting pipe is communicated with the water outlet pipe, an outer pipe is fixedly arranged on the outer side of the connecting pipe, an external thread is arranged on the outer side of one end of the outer pipe away from the water outlet pipe, the water outlet hose is arranged on the outer side of the connecting pipe, the nut is arranged on the outer side of the outer pipe, the nut is in threaded connection with the outer pipe,

the inner diameter of the end of the nut away from the outer tube is gradually reduced.

Further, the connecting pipe is in threaded connection with the water outlet pipe, and a sealing gasket is arranged between the connecting pipe and the water outlet pipe;

one end of the sleeve, which is far away from the water outlet pipe, is provided with a notch arranged along the axial direction of the sleeve.

The utility model further provides a membrane module cleaning device which comprises a clear water tank, a cleaning pump and a membrane module cleaning gun, wherein the liquid inlet end of the cleaning pump is communicated with a water outlet pipe of the clear water tank, the water outlet end of the cleaning pump is communicated with a water outlet hose, the water outlet hose is communicated with the membrane module cleaning gun, and the membrane module cleaning gun is the membrane module cleaning gun in one aspect.

Further, the membrane module cleaning device further comprises a water supplementing pump, and the liquid outlet end of the water supplementing pump is communicated with the water inlet pipe of the clean water tank through a water supplementing pipe.

Further, the membrane module cleaning device further comprises a dosing assembly, the dosing assembly comprises two dosing barrels, each dosing barrel is provided with a dosing pump, the liquid inlet end of the dosing pump is communicated with the water outlet pipe of the dosing barrel, and the liquid outlet end of the dosing pump is communicated with the liquid outlet end of the cleaning pump.

Further, a one-way valve is arranged on the water outlet pipe of the dosing barrel.

Compared with the prior art, the membrane module cleaning gun and the cleaning device have the following beneficial effects:

(1) According to the cleaning gun for the membrane assembly, disclosed by the utility model, water flow is sprayed out from the spray head to mainly flush the peripheral membrane assemblies on two sides of the membrane frame, meanwhile, certain preliminary flushing can be carried out on gaps between the membrane assemblies, larger sludge is dispersed, the transverse flushing mode is convenient for the sludge between membrane wires on the upper end and the lower end of the membrane assemblies, the working efficiency is improved, and the flushing mode of the cleaning gun is switched according to the use scene, so that the application range of the cleaning gun is widened.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view showing a structure of a membrane module cleaning device in an unconnected state according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of a cleaning gun for a membrane module according to an embodiment of the utility model;

FIG. 3 is a schematic perspective view of a membrane module cleaning gun according to an embodiment of the utility model;

fig. 4 is a schematic perspective view of a connecting assembly according to an embodiment of the present utility model;

fig. 5 is a schematic cross-sectional view of a cleaning gun for membrane modules according to an embodiment of the utility model.

Reference numerals illustrate:

1. a water supplementing pipe; 2. a water supplementing pump; 3. a clean water tank; 4. a cleaning pump; 5. a water outlet hose; 6. cleaning a gun; 7. a dosing pump; 8. a medicine adding barrel; 601. a water outlet pipe; 602. an arc-shaped plate; 603. a spray head; 604. a nut; 605. a connecting pipe; 606. a sleeve; 607. a laryngeal cuff; 608. a sealing gasket; 60201. a gasket; 60101. a water outlet hole; 60102. a groove; 60601. an annular boss; 60501. an outer tube; 60502. and (5) a notch.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying 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. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Embodiment one:

as shown in fig. 2 to 5, a membrane module cleaning gun 6 comprises a water outlet pipe 601, a spray head 603 and two arc plates 602; one end of the water outlet pipe 601 is communicated with the water outlet hose 5 through a valve, the other end of the water outlet pipe is communicated with the spray head 603, a water outlet hole 60101 is formed in the side wall of the water outlet pipe 601, the arc plates 602 are used for sealing the water outlet hole 60101, the two arc plates 602 can be movably connected to the water outlet pipe 601, the arc plates 602 are correspondingly provided with sleeves 606, and the arc plates 602 are mounted on the inner sides of the sleeves 606. The inner side of the water outlet part of the gun head is provided with threads for installing the spray head 603 of the quick-connection cleaning gun 6, and the spray head 603 of 0 degree, 15 degree, 25 degree and 40 degree can be selected according to the working requirements.

Annular bosses 60601 are arranged on the outer sides of the two ends of the sleeve 606; the annular boss 60601 is practical as a hand guard, facilitating gripping of the cannula 606.

The sleeve 606 is a rubber structural member, the inner diameter of the sleeve 606 is larger than the outer diameter of the arc-shaped plate 602, the outer sides of the two ends of the sleeve 606 are provided with annular grooves 60102, and a hose clamp 607 is arranged in the annular grooves 60102. Annular groove 60102 facilitates mounting of the ferrule 607.

The outer side wall of the water outlet pipe 601 is provided with a groove 60102 corresponding to the water outlet hole 60101, and the inner side of the arc-shaped plate 602 is provided with a gasket 60201 corresponding to the groove 60102.

One end of the water outlet pipe 601 close to the spray head 603 is internally provided with internal threads, one end of the valve is in threaded connection with the spray head 603, the other end of the valve is arranged on the inner side of the water outlet pipe 601 and in threaded connection with the water outlet pipe 601, and a sealing gasket 608 is arranged between the valve and the water outlet pipe 601. Gasket 608 ensures tightness between the valve and outlet pipe 601

The water outlet hose 5 is connected with the water outlet pipe 601 through a pipeline connecting assembly, the pipeline connecting assembly comprises a nut 604 and a connecting pipe 605, one end of the connecting pipe 605 is communicated with the water outlet pipe 601, an outer pipe 60501 is fixedly arranged on the outer side of the connecting pipe 605, an external thread is arranged on the outer side of one end, far away from the water outlet pipe 601, of the outer pipe 60501, the water outlet hose 5 is arranged on the outer side of the connecting pipe 605, the nut 604 is arranged on the outer side of the outer pipe 60501, the nut 604 is in threaded connection with the outer pipe 60501, and a notch 60502 is arranged on one end, far away from the water outlet pipe 601, of the sleeve 606 along the axial direction of the sleeve 606.

The inner diameter of the end of the nut 604 distal from the outer tube 60501 decreases gradually. In the process of screw fastening the nut 604 with the outer surface of the outer tube 60501, one end of the outer tube 60501 far away from the outer tube can be continuously extruded, and along with the continuous fastening of the nut 604, the water outlet hose 5 and the connecting tube 605 are continuously attached by extrusion at the connecting position, so that sealing connection is realized.

The connecting pipe 605 is in threaded connection with the water outlet pipe 601, and a sealing gasket 608 is arranged between the connecting pipe 605 and the water outlet pipe 601; the gasket 608 ensures tightness between the connection pipe 605 and the outlet pipe 601. When the membrane module cleaning gun 6 or the water outlet hose 5 fails, the membrane module cleaning gun can be detached and replaced.

When the valve is closed, water flows are sprayed from two ends of the water outlet hole 60101 on the side wall of the water outlet pipe 601 to form sheet-shaped high-pressure water flow, and the side surface of the membrane assembly is cleaned.

When the water outlet hole 60101 needs to be closed, the hose 607 is loosened to move the arc-shaped plate 602 and the gasket 60201 to seal the water outlet hole 60101, then the hose 607 is screwed down to play a role of fixing the sleeve 606, and the valve water flow is opened to be sprayed out from the nozzle 603, so that the application range of the device is widened.

The assembly of the cleaning gun 6 assembly is firstly that the water outlet pipe 601 is assembled with the arc-shaped plate 602, and the pad 60201 protruding from the inner side of the arc-shaped plate 602 and the groove 60102 to Ji Tiege on the outer side of the water outlet pipe 601 need to be kept away from the gap.

Then, the sleeve 606 is assembled, the water outlet pipe 601 and the arc plate 602 pass through the inner wall of the sleeve 606 at the same time, the inner wall of the sleeve 606 is used for primarily fixing the water outlet pipe 601 and the arc plate 602, then, whether the front end arc plate 602 gasket 60201 is tightly attached to the groove 60102 of the water outlet pipe 601 or not is checked, no gap is reserved, after the checking is correct, the hoops 607 are sleeved on the front end and the rear end of the sleeve 606 respectively, the hoops 607 are recommended to be screwed down in sequence from front to back, in the process of screwing down the fastening screw, the tightness degree is controlled, the leakage phenomenon can occur when the sleeve is too loose, excessive extrusion is easily caused on the water outlet pipe 601 and the arc plate 602, cracks are formed, and the leakage phenomenon can also occur.

After the front end hose clamp 607 is screwed down, the position of the sleeve 606 is adjusted, the sleeve 606 is recommended to be placed in the middle and back position, after the position is adjusted, the two hose clamps 607 for fixing the sleeve 606 are screwed down again, the process is properly and slightly flapped, the fitting state of the arc plate 602 and the water outlet pipe 601 is noted, the position is adjusted in time, and the arc plate 602 is prevented from being damaged by screwing down, and the cushion layer is prevented from being damaged. Finally, the rear ferrule 607 is tightened.

The cleaning gun 6 is assembled and connected with the water outlet hose 5 and the water outlet pipe 601, and firstly, the cleaning gun 6 is connected with the water outlet pipe 601. With the connection assembly, the threaded end of the connection tube 605 is first mated with the threads of the end of the outlet tube 601 and screwed. The mounting nut 604 is carefully positioned with the narrow opening facing the outside, then the water outlet hose 5 is butted with the connecting pipe 605, after the water outlet hose 5 is fully butted, the nut 604 is matched with the threads on the outer surface of the outer pipe 60501, and the water outlet hose is gradually screwed downwards until the water outlet hose 5 is slightly pulled and does not fall off. The tightness is checked, and leakage is avoided.

The cleaning gun 6 is connected with the nozzle 603 in an interface configuration. The screw thread at one end of the spray head 603 is matched with the screw thread on the inner surface of the water outlet pipe 601, and the spray head and the water outlet pipe are connected in a screwing mode. In addition, the inner surface of the front end of the spray head 603 is also provided with threads, so that the spray head 603 can be used for installing the spray head 603 of the quick-connection type cleaning gun 6, the spray heads 603 of the quick-connection type cleaning gun 6 with different types can be selected according to actual working requirements, and the spray heads are screwed and connected in the same way.

Embodiment two:

as shown in fig. 1, a membrane module cleaning device is characterized in that: the membrane module cleaning device comprises a clean water tank 3, a cleaning pump 4 and a membrane module cleaning gun 6, wherein the liquid inlet end of the cleaning pump 4 is communicated with a water outlet pipe 601 of the clean water tank 3, the water outlet end of the cleaning pump 4 is communicated with a water outlet hose 5, the water outlet hose 5 is communicated with the membrane module cleaning gun 6, and the membrane module cleaning gun 6 is the membrane module cleaning gun 6 of the first embodiment.

The membrane module cleaning device further comprises a water supplementing pump 2, and the liquid outlet end of the water supplementing pump 2 is communicated with the water inlet pipe of the clean water tank 3 through a water supplementing pipe 1.

The membrane module cleaning device further comprises a dosing assembly, the dosing assembly comprises two dosing barrels 8, each dosing barrel 8 is provided with a dosing pump 7, the liquid inlet end of each dosing pump 7 is communicated with the water outlet pipe 601 of each dosing barrel 8, and the liquid outlet end of each dosing pump 7 is communicated with the liquid outlet end of the cleaning pump 4.

The water outlet pipe 601 of the dosing barrel 8 is provided with a one-way valve.

The working process comprises the following steps:

when this scheme is implemented, this cleaning gun 6 has two kinds of mode, and this cleaning gun 6 has two kinds of mode: a direct current flushing mode and a transverse flushing mode, so as to well adapt to the working requirement of flushing the membrane component.

The cleaning gun 6 is well connected with the water outlet hose 5 and the spray head 603, a gun head switch is started, and a water pump is started, so that water can flow out directly, and a direct current flushing mode is achieved.

The cleaning gun 6 in the direct current flushing mode is opened, water flow is sprayed out from the spray head 603, peripheral membrane components on two sides of the membrane frame are mainly flushed, and meanwhile, certain preliminary flushing can be carried out on gaps between the membrane components, so that larger sludge is dispersed.

To switch the cleaning gun 6 to a transverse flushing mode, the front end valve is closed first, the fastening screw of the hose clamp 607 is loosened properly, then the sleeve 606 is held, the arc plate 602 is moved backwards along the direction of the grooves 60102 on the two sides of the water outlet, the closure of the water outlet hole 60101 is released, after the water outlet hole is moved to a proper position, the fastening screw of the hose clamp 607 is tightened again, the outer wall of the arc plate 602 is slightly tapped properly in the process of tightening the screw, and the attaching state of the arc plate 602 and the water outlet pipe 601 is noted. After the fastening of the hose clamp 607 is completed, the connection between the cleaning gun 6 and the arcuate plate 602 is inspected, and then the water pump is started, so that water can be discharged laterally and a lateral flushing mode is entered. The transverse flushing mode is convenient for sludge between membrane wires at the upper end and the lower end of the membrane assembly, and improves the working efficiency. Switching the flushing mode of the cleaning gun 6 widens the application range of the cleaning gun 6 according to the use scene.

The cleaning gun 6 is additionally provided with a unitized arc-shaped plate 602, the basic structure is consistent with that of the arc-shaped plate 602, and the unitized arc-shaped plate 602 is fastened by using a throat hoop 607, but is only used for blocking a certain pair of elliptical water outlet holes 60101, and can be selectively installed according to the requirement of flushing work.

The device uses the work flow including water tank moisturizing, membrane group ware washing, membrane group ware washs, membrane pond resumes four stages.

(1) Water tank water replenishing

Before going to the appointed working place, the residual medicine amount in the medicine adding barrel 8 and the water level of the water tank are checked, the water tank can be supplemented with water in advance, or a sewage treatment station which normally operates near the appointed working place is supplemented with water, and clear water in a clean water tank or a landscape pool is preferably selected. The water tank is provided with a set of water supplementing pipe 1 and a water supplementing pump 2, and is suitable for being used in a station with a clean water tank, if the station has no clean water tank, accessories are used, a water outlet of the landscape tank is plugged, the water pump is started after clean water is accumulated, and water is supplemented for the water tank. If the conditions are limited and clear water cannot be obtained, the water is supplemented by the regulating tank, a screen is required to be installed at the water inlet end of the water supplementing pipe 1, and then water is supplemented from the regulating tank.

(2) Membrane group device flushing

Before the membrane module flushing operation is carried out, the sewage treatment station equipment is required to be shut down, and meanwhile, the membrane tank sewage is emptied, and the sewage can be pumped into the sludge tank by using a water suction pump to vacate the membrane tank space, so that the follow-up operation is convenient.

When the flushing operation is carried out, the periphery of the membrane module is flushed by using a direct current flushing mode, and the adhered sludge with serious agglomeration and larger volume is dispersed. And then the front end direct current gun head is closed, the working mode of the cleaning gun 6 is adjusted and switched, the transverse flushing mode is used, the cleaning gun 6 extends into a gap between adjacent membrane modules, and water is sprayed from two ends to flush the side surfaces of the membrane modules with high efficiency.

If the membrane filaments of the adjacent membrane modules are adhered to each other and wound, the cleaning gun 6 can be used for mechanical cleaning, and the membrane filaments which are adhered to each other are peeled off by slightly pressing the cleaning gun along the direction of the membrane filaments. For the film wires adhered to each other on the same film assembly due to attachments, the scouring of transverse water flow can bring good stripping effect to the film wires.

(3) Membrane group device cleaning

After the flushing is finished, the volume of the membrane tank and equipment can be utilized to carry out online backwashing, and specific working procedures for a sewage treatment station provided with a backwashing system are as follows:

(1) when the equipment normally operates and normally discharges water, a water inlet valve of a backwashing pipeline is opened, clear water is added into a backwashing tank, and sodium hypochlorite solution is poured into the backwashing tank;

(2) after the blending and mixing of the backwash solution are completed, checking related equipment and valves of a water production system of the sewage treatment station, and confirming that the sewage treatment station is in a correct closing state;

(3) the opening device is used for injecting water into the membrane tank, and stopping water injection after the liquid level is controlled to basically exceed the upper surface of the membrane group device by about 5 cm;

(4) opening a backwashing valve and a backwashing pump, cleaning the membrane assembly for three times, filling 1/3 of backwashing solution in a backwashing tank each time, wherein the dosing time is 5min, stopping dosing for 5min after dosing is completed once, and repeating for three times, wherein the total cleaning time is about 30 min;

(5) closing a backwash pump after backwash is finished, closing a valve of a backwash tank water outlet pipe 601, closing a valve of a backwash tank water inlet pipe, and opening a blower to start air aeration, wherein the air aeration time is 2-4 h;

(6) after the air aeration is completed, the membrane tank cleaning waste liquid is transferred to the regulating tank by using a water suction pump, and the surface of the membrane component can be simply washed again by using a cleaning gun 6. And (5) finishing the membrane assembly cleaning work.

For a sewage treatment station not provided with a backwashing system, the online cleaning work flow is as follows:

(1) checking related equipment and valves of a water production system of the sewage treatment station, and confirming that the equipment and the valves are in a correct closing state;

(2) observing the basic state of attachments on the surface of the membrane assembly, and judging which medicament is used (inorganic attachments are mostly used, acid is used, organic attachments or oily attachments are mostly used, and alkali or detergent is used);

(3) the medicine liquid is injected, and the medicine adding device is used for starting the medicine adding pump 7 corresponding to the medicine when the flushing water pump is started, and injecting the medicine liquid when the membrane tank is filled with water;

(4) air aeration, stopping water injection when the liquid level exceeds the upper surface of the membrane module device by about 5cm, closing the flushing water pump and the dosing pump 7, starting the blower of the sewage treatment station, and air aeration for 2-4 hours;

(5) after the air aeration is completed, the membrane tank cleaning waste liquid is transferred to the regulating tank by using a water suction pump, and the surface of the membrane component can be simply washed again by using a cleaning gun 6. And (5) finishing the membrane assembly cleaning work.

After the membrane component cleaning work is finished, water production test can be carried out, water yield and transmembrane pressure difference indication are checked, and the cleaning effect is rechecked compared with the indication before cleaning. And the reading of the negative pressure meter is between-10 and-15 kPa, the membrane assembly is qualified in cleaning, and the backwashing is completed. If the negative pressure is not obviously reduced, the online cleaning is repeated for 1 to 2 times until the cleaning is qualified.

(4) Membrane pool recovery

After the membrane assembly cleaning work is completed, the sludge which is originally transferred from the membrane tank to the sludge tank is transferred back to the membrane tank by using a sludge pump which is additionally arranged, meanwhile, the equipment is started to feed water, and the operation of a subsequent sewage treatment station is started to resume work.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the claims and description.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A membrane module cleaning gun (6), characterized by: comprises a water outlet pipe (601), a spray head (603) and two arc plates (602); one end of the water outlet pipe (601) is communicated with the water outlet hose (5) through a valve, the other end of the water outlet pipe is communicated with the spray head (603), water outlet holes (60101) are formed in the side wall of the water outlet pipe (601), the arc plates (602) are used for sealing the water outlet holes (60101), the two arc plates (602) can be movably connected to the water outlet pipe (601), the arc plates (602) are correspondingly provided with sleeves (606), and the arc plates (602) are mounted on the inner sides of the sleeves (606).

2. A membrane module cleaning gun (6) according to claim 1, characterized in that: annular bosses (60601) are arranged on the outer sides of the two ends of the sleeve (606);

the sleeve (606) is a structural member made of rubber, the inner diameter of the sleeve (606) is larger than the outer diameter of the arc-shaped plate (602), annular grooves (60102) are formed in the outer sides of the two ends of the sleeve (606), and a throat hoop (607) is arranged in the annular grooves (60102).

3. A membrane module cleaning gun (6) according to claim 1, characterized in that: the outer side wall of the water outlet pipe (601) is provided with a groove (60102) corresponding to the water outlet hole (60101), and the inner side of the arc-shaped plate (602) is provided with a gasket (60201) corresponding to the groove (60102).

4. A membrane module cleaning gun (6) according to claim 1, characterized in that: the water outlet pipe (601) is provided with internal threads in one end close to the spray head (603), one end of the valve is in threaded connection with the spray head (603), the other end of the valve is arranged on the inner side of the water outlet pipe (601) and in threaded connection with the water outlet pipe (601), and a sealing gasket (608) is arranged between the valve and the water outlet pipe (601).

5. A membrane module cleaning gun (6) according to claim 1, characterized in that: the water outlet hose (5) is connected with the water outlet pipe (601) through a pipeline connecting assembly, the pipeline connecting assembly comprises a nut (604) and a connecting pipe (605), one end of the connecting pipe (605) is communicated with the water outlet pipe (601), an outer pipe (60501) is fixedly arranged on the outer side of the connecting pipe (605), an external thread is arranged on the outer side of one end, far away from the water outlet pipe (601), of the outer pipe (60501), the water outlet hose (5) is arranged on the outer side of the connecting pipe (605), the nut (604) is arranged on the outer side of the outer pipe (60501), the nut (604) is in threaded connection with the outer pipe (60501),

the inner diameter of the end of the nut (604) far away from the outer tube (60501) is gradually reduced.

6. A membrane module cleaning gun (6) according to claim 5, characterized in that: the connecting pipe (605) is in threaded connection with the water outlet pipe (601), and a sealing gasket (608) is arranged between the connecting pipe (605) and the water outlet pipe (601);

one end of the sleeve (606) far away from the water outlet pipe (601) is provided with a notch (60502) arranged along the axial direction of the sleeve (606).

7. A membrane module belt cleaning device, its characterized in that: including clear water tank (3), wash pump (4), membrane module cleaning gun (6), the feed liquor end of wash pump (4) communicates with outlet pipe (601) of clear water tank (3), the play water end of wash pump (4) communicates with play water hose (5), play water hose (5) communicate with membrane module cleaning gun (6), membrane module cleaning gun (6) are any of claims 1 to 6 membrane module cleaning gun (6).

8. A membrane module cleaning apparatus as defined in claim 7, wherein: the membrane module cleaning device further comprises a water supplementing pump (2), and the liquid outlet end of the water supplementing pump (2) is communicated with the water inlet pipe of the clean water tank (3) through a water supplementing pipe (1).

9. A membrane module cleaning apparatus as defined in claim 7, wherein: the membrane module cleaning device further comprises a dosing assembly, the dosing assembly comprises two dosing barrels (8), each dosing barrel (8) is provided with a dosing pump (7), the liquid inlet end of each dosing pump (7) is communicated with the water outlet pipe (601) of each dosing barrel (8), and the liquid outlet end of each dosing pump (7) is communicated with the liquid outlet end of each cleaning pump (4).

10. A membrane module cleaning apparatus as claimed in claim 9, wherein: a one-way valve is arranged on a water outlet pipe (601) of the dosing barrel (8).