Tubular ultrafiltration membrane passing leak detection device

Abstract

The utility model discloses a tubular ultrafiltration membrane passing leak detection device, which comprises a first integrated mechanism, a second integrated mechanism and a lifting platform, the lifting platform is arranged between the first integrated mechanism and the second integrated mechanism, the first integrated mechanism and the second integrated mechanism respectively comprise a water tank and a sealing connecting part, the sealing connecting part is connected with a tubular ultrafiltration membrane, and the water tank is connected with the lifting platform. An air pressure generator is arranged at the bottom of the first integrated mechanism, and a water pressure generator is arranged at the bottom of the second integrated mechanism and connected with a cleaning drill rod. Hydraulic dredging, drill crushing and bubble leak detection are integrated, and the problem that the tubular ultrafiltration membrane is blocked and damaged is solved at a time. The water pressure can be automatically adjusted, and different pressures are selected according to blocking conditions; the rotary drill bit is internally arranged, stubborn blockages are crushed, and particularly, the effect of crushing lump fibers is good; leakage detection is carried out synchronously after dredging is completed, it is ensured that the problem of outflow water turbidity cannot occur after the tubular ultrafiltration membrane is put into use, the automation degree is high, multi-gear water pressure is matched with the rotary drill bit, and the dredging efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of maintenance equipment for tubular ultrafiltration membranes, in particular to a device for detecting leaks and unclogging tubular ultrafiltration membranes. Background Art

[0002] Tubular ultrafiltration membranes are widely used in the water treatment industry. During operation, the membrane tubes of tubular ultrafiltration membranes are prone to blockage, which will greatly reduce the treatment efficiency. At the same time, once the membrane tubes are damaged, the quality of the produced water will become turbid. Therefore, the quality of leak detection and unclogging of the membrane is related to the stable operation of the tubular ultrafiltration membrane. In the prior art, mainly single-function devices are used, that is, they are divided into leak detection devices and unclogging devices. Conventional unclogging devices generally use a hose to connect to tap water for dredging. When the blockage is serious, the efficiency is low, and it cannot solve the problem of agglomerated fibers or other harder substances. Conventional leak detection is carried out by placing the tubular ultrafiltration membrane in a water tank for leak detection, and a water tank needs to be configured separately and multiple people are required to cooperate in the operation. The operation process is relatively complex, the flexibility of use is not high, and the labor intensity is large. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for detecting leaks and unclogging tubular ultrafiltration membranes, so as to solve the problems of complex operation process, low flexibility and high labor intensity when the existing tubular ultrafiltration membranes are used for leak detection and unclogging.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A device for detecting leaks and unclogging tubular ultrafiltration membranes, which includes a first integrated mechanism, a second integrated mechanism and a lifting platform. The lifting platform is arranged between the first integrated mechanism and the second integrated mechanism. Both the first integrated mechanism and the second integrated mechanism include a water tank and a sealing connection part. The sealing connection part is connected to the tubular ultrafiltration membrane. An air pressure generator is arranged at the bottom of the first integrated mechanism, and a water pressure generator is arranged at the bottom of the second integrated mechanism. The water pressure generator is connected with a cleaning drill rod. The lifting platform is controlled by hydraulic or mechanical lifting. This structure is a conventional design and is not described in detail here. The sealing connection part includes structures such as flanges and clamps. The tubular ultrafiltration membrane is fixed on the flange through the clamp, so that both ends of the tubular ultrafiltration membrane are communicated with the water tank.

[0005] Preferably, the air pressure generator includes a leak detection air pipe and an air pump. A cut-off valve, an air pressure sensor and a fine adjustment valve are arranged on the leak detection air pipe. The leak detection air pipe is connected to the tubular ultrafiltration membrane.

[0006] Preferably, the water pressure generator includes a water pump and a water pressure sensor. One end of the water pump is connected to the water tank, and the other end is connected to the cleaning drill rod.

[0007] Preferably, the cleaning drill rod includes a rotating rod and a casing. One end of the rotating rod is provided with a drill bit, and the other end is provided with a handle. The casing is connected to a water pump. The rotating rod is rotatably installed in the casing, and the drill bit extends out of the casing. The cleaning drill rod is a tool for passing through the membrane. The main body is made of 304 stainless steel, and the outer diameter is generally controlled at about 6 mm (less than the inner diameter of the membrane tube, which is generally 8 mm). The end is ground into a rounded corner to avoid scratching the membrane surface. During use, the internal blockage of the membrane tube is flushed by externally connected high-pressure water; at the same time, there is a rotatable drill bit in the dredging pipe. When encountering agglomerated fibers or other harder substances that cannot be dredged by the flushing water, the drill bit can be manually rotated and pushed forward to break them; there are limits at the tool end and the rotating handle to control the rotation of the drill bit within a limited length to avoid the cutter head extending too long and scratching the membrane surface. The drill bit can be telescopically adjusted by a screw thread. By rotating the handle, the drill bit extends out.

[0008] Preferably, moving wheels are provided at the bottoms of the first integrated mechanism, the second integrated mechanism, and the lifting platform. The moving wheels are equipped with a braking mechanism, which can be easily moved and fixed, facilitating operation.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The tube ultrafiltration membrane passing and leak detection device of the present utility model integrates hydraulic dredging, drill bit crushing, and bubble leak detection, and solves the problems of blockage and breakage of the tube ultrafiltration membrane at one time. The water pressure can be automatically adjusted, and different pressures can be selected according to the blockage situation; a built-in rotating drill bit is used to break stubborn blockages, especially with good effect on agglomerated fibers; leak detection is carried out synchronously after dredging to ensure that the water quality after the tube ultrafiltration membrane is put into use will not be turbid, avoiding secondary disassembly and assembly. It has a high degree of automation, and multiple gears of water pressure are combined with a rotating drill bit, greatly improving the dredging efficiency. The equipment is small and can be flexibly moved and freely combined. Automatic control is achieved through a pressure sensor, and irreversible damage to the tube ultrafiltration membrane will not be caused. It solves the problems of complex operation process, low flexibility in use, and high labor intensity in the maintenance of the tube ultrafiltration membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the installation structure for the leak detection operation of the present utility model;

[0012] Figure 2 It is a schematic diagram of the installation structure for the membrane passing operation of the present utility model;

[0013] Figure 3 It is a schematic diagram of the structure of the first integrated mechanism of the present utility model;

[0014] Figure 4 It is a schematic diagram of the structure of the second integrated mechanism of the present utility model;

[0015] Figure 5 It is a schematic diagram of the structure of the cleaning drill rod of the present utility model.

[0016] Reference numerals: 1, first integrated mechanism; 10, leak detection air pipe; 11, air pump; 12, cut-off valve; 121, water tank; 122, sealed connection part; 13, air pressure sensor; 14, fine adjustment valve; 2, second integrated mechanism; 21, water pump; 22, water pressure sensor; 23, cleaning drill pipe; 231, rotating rod; 232, handle; 233, sleeve; 3, lifting platform; 4, moving wheels. Detailed implementation manners

[0017] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0018] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 5As shown in the figure, the tube ultrafiltration membrane leak detection device of this embodiment includes a first integrated mechanism 1, a second integrated mechanism 2 and a lifting platform 3. The lifting platform 3 is arranged between the first integrated mechanism 1 and the second integrated mechanism 2. Both the first integrated mechanism 1 and the second integrated mechanism 2 include a water tank 121 and a sealing connection part 122. The sealing connection part 122 is connected to the tube ultrafiltration membrane. An air pressure generator is arranged at the bottom of the first integrated mechanism 1, and a water pressure generator is arranged at the bottom of the second integrated mechanism 2. The water pressure generator is connected to a cleaning drill rod 23. The main structure is made of stainless steel, which is strong and durable.

[0022] The air pressure generator includes a leak detection air pipe 10 and an air pump 11. A cut-off valve 12, an air pressure sensor 13 and a fine-tuning valve 14 are arranged on the leak detection air pipe 10. The leak detection air pipe 10 is connected to the tube ultrafiltration membrane.

[0023] The water pressure generator includes a water pump 21 and a water pressure sensor 22. One end of the water pump 21 is connected to the water tank 121, and the other end is connected to the cleaning drill rod 23.

[0024] The cleaning drill rod 23 includes a rotating rod 231 and a sleeve 233. A drill bit is arranged at one end of the rotating rod 231, and a handle 232 is arranged at the other end. The sleeve 233 is connected to the water pump 21. The rotating rod 231 is rotatably installed in the sleeve 233, and the drill bit extends out of the sleeve 233.

[0025] Moving wheels 4 are arranged at the bottoms of the first integrated mechanism 1, the second integrated mechanism 2 and the lifting platform 3.

[0026] When the utility model is in use, it includes two steps:

[0027] 1. Membrane passing operation: Place the tube ultrafiltration membrane on the lifting platform 3 and connect it to the water tank 121 of the first integrated mechanism 1 through the sealing connection part 122; the operator holds the cleaning drill rod 23 to dredge the tube ultrafiltration membrane, and the other end of the cleaning drill rod 23 is connected to the water pump 21 through a hose. During the membrane passing process, the operator gradually advances the membrane passing tool until it is completely dredged. When the pushing resistance is too large, the handle 232 can be manually rotated to break up the agglomerated fibers or other hard substances with the internal drill bit; the high-pressure water pump 21 has three pressure gears of high, medium and low, and the water pump 21 is interlocked with the water pressure sensor 22 for automatic variable frequency control of pressure; during the dredging process, most of the waste liquid and sludge are collected through the water tank 121 of the first integrated mechanism 1 to avoid secondary pollution.

[0028] 2. Leak detection operation: Place the tubular ultrafiltration membrane on the lifting platform 3, and connect both ends to the first integrated mechanism 1 and the second integrated mechanism 2 through the sealing connection part 122. Fill the water tank 121 with clean water. Connect the leak detection air pipe 10 to the water outlet of the tubular ultrafiltration membrane, observe the bubbles in the membrane tube to determine the leak point location, perform leak plugging operations, and adjust different leak detection pressures according to the tubular ultrafiltration membranes with different filtration precisions to accurately determine the leak point. The compressed air is step-down by the fine adjustment valve 14 for the first time. The air pressure sensor 13 is interlocked with the cut-off valve 12, and the compressed air is automatically cut off when the required pressure is reached to avoid irreversible damage to the membrane tube caused by excessive pressure. After detecting the leak point, use the special plug for the tubular ultrafiltration membrane to block the corresponding damaged membrane tube.

[0029] The utility model integrates hydraulic dredging, drill bit crushing, and bubble leak detection, and solves the problems of blockage and damage of the tubular ultrafiltration membrane at one time. The water pressure can be automatically adjusted, and different pressures can be selected according to the blockage situation; a rotating drill bit is built-in to crush stubborn blockages, especially with good results for agglomerated fibers; leak detection is carried out synchronously after dredging to ensure that the water quality after the tubular ultrafiltration membrane is put into use will not be turbid, and to avoid secondary disassembly and assembly. The degree of automation is high, and multiple gears of water pressure are combined with the rotating drill bit to greatly improve the dredging efficiency. The equipment is small and can be flexibly moved and freely combined. Automatic control is achieved through the pressure sensor, and irreversible damage will not be caused to the tubular ultrafiltration membrane.

[0030] The above are only the embodiments of the utility model, and the specific structures and characteristics and other common knowledge well known in the art are not described in detail here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A tube ultrafiltration membrane leak detection device through the membrane, characterized in that: It includes a first integrated mechanism (1), a second integrated mechanism (2) and a lifting platform (3). The lifting platform (3) is arranged between the first integrated mechanism (1) and the second integrated mechanism (2). Both the first integrated mechanism (1) and the second integrated mechanism (2) include a water tank (121) and a sealed connection part (122). The sealed connection part (122) is connected to a tubular ultrafiltration membrane. A pneumatic generator is arranged at the bottom of the first integrated mechanism (1), and a hydraulic generator is arranged at the bottom of the second integrated mechanism (2). The hydraulic generator is connected to a cleaning drill rod (23).

2. The tube ultrafiltration membrane through-membrane leak detection device according to claim 1, characterized in that: The pneumatic generator includes a leak detection air pipe (10) and an air pump (11). A cut-off valve (12), a pneumatic pressure sensor (13) and a fine adjustment valve (14) are arranged on the leak detection air pipe (10). The leak detection air pipe (10) is connected to the tubular ultrafiltration membrane.

3. The tubular ultrafiltration membrane through-membrane leak detection device according to claim 1, characterized in that: The hydraulic generator includes a water pump (21) and a hydraulic pressure sensor (22). One end of the water pump (21) is connected to the water tank (121), and the other end is connected to the cleaning drill rod (23).

4. The tube ultrafiltration membrane leak detection device according to claim 2, characterized in that: The cleaning drill rod (23) includes a rotating rod (231) and a sleeve (233). A drill bit is arranged at one end of the rotating rod (231), and a handle (232) is arranged at the other end. The sleeve (233) is connected to the water pump (21). The rotating rod (231) is rotatably installed in the sleeve (233), and the drill bit extends out of the sleeve (233).

5. The tube ultrafiltration membrane through-membrane leak detection device according to any one of claims 1 to 4, characterized in that: Moving wheels (4) are arranged at the bottoms of the first integrated mechanism (1), the second integrated mechanism (2) and the lifting platform (3).

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