Ultrafiltration membrane water production equipment

Abstract

The utility model relates to ultrafiltration membrane water production equipment which comprises a membrane tank, an ultrafiltration membrane group, a water production pipe, a jet device and a siphon, the lower part of the membrane tank is connected with a water inlet pipe; the ultrafiltration membrane group is fixed at the upper part of the membrane tank; a water collector is arranged at the top of the ultrafiltration membrane group; one end of the water producing pipe is connected with the water collector, and the other end penetrates out of the membrane tank; the jet device is connected with one end of the water producing pipe outside the membrane tank; and one end of the siphon is connected with the top of the water producing pipe and the other end is connected with a jet orifice of the jet device. The jet device and the siphon are arranged, filtered water flows out of the water producing pipe and then is accelerated by the jet device, and due to the Venturi effect of the jet device, namely after the water passes through the jet device, the flow speed is increased, the pressure is reduced, the pressure of a jet opening of the jet device is lower than that of the water producing pipe, and an adsorption effect is generated; therefore, air gathered at the top of the water production pipe is sucked out through the siphon, automatic exhaust is achieved, manual intervention is reduced, and the operation efficiency of water production equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of water purification equipment technology, and in particular relates to an ultrafiltration membrane water purification device. Background Technology

[0002] With societal progress, wastewater discharge is increasing, and water pollution is becoming increasingly prominent. Recently, with the maturation of membrane filtration technology, it is being increasingly applied in the drinking water industry. Currently, there are two main forms of membrane-based water production: pressure membrane production, which uses a booster pump for pressurized or suction filtration, and submerged membrane production, which uses gravity filtration. However, pressure membrane production consumes a lot of energy. For ultrafiltration membranes with small transmembrane pressure differences, many projects utilize elevation differences to employ gravity-based submerged water production. Before operation, the product water pipes of the membrane module need to be vented or evacuated. When water passes through the ultrafiltration membrane pores, some air is released. Therefore, the vacuum level in the product water pipes needs to be monitored during operation. If the vacuum level is disrupted, operation must be stopped for venting or evacuation. This process is cumbersome and inefficient. Utility Model Content

[0003] The main objective of this invention is to provide an ultrafiltration membrane water purification device that can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An ultrafiltration membrane water purification device, including

[0006] The membrane tank has an inlet pipe connected to its lower part.

[0007] An ultrafiltration membrane module is fixed to the upper part of the membrane tank, and a water collector is provided on the top of the ultrafiltration membrane module;

[0008] The water production pipe has one end connected to the water collector and the other end extending out of the membrane tank;

[0009] A jetting device is connected to the end of the product water pipe located outside the membrane tank;

[0010] The siphon tube is connected at one end to the top of the water production pipe and at the other end to the jet port of the jet device.

[0011] Preferably, the siphon tube is equipped with a regulating valve.

[0012] Preferably, the diameter of the siphon pipe is 15%-20% of the diameter of the water production pipe.

[0013] Preferably, the rear end of the jet device is connected to a water supply pipe, and a glass pipe sight glass is provided on the water supply pipe.

[0014] Preferably, the water supply pipeline is also equipped with a water production valve.

[0015] Preferably, the bottom of the membrane tank is provided with a V-shaped sludge collection trough, the bottom of the V-shaped sludge collection trough is connected to a sludge discharge pipe, and a sludge discharge valve is provided on the sludge discharge pipe.

[0016] This utility model provides an ultrafiltration membrane water purification device, which has the following beneficial effects:

[0017] This invention incorporates a jetting device and a siphon tube. After the filtered water flows out of the product water pipe, it is accelerated by the jetting device. Due to the Venturi effect, the water velocity increases and the pressure decreases after passing through the jetting device. The pressure at the jetting outlet of the jetting device is lower than the pressure in the product water pipe, resulting in an adsorption effect. This allows the air accumulated at the top of the product water pipe to be drawn out through the siphon tube, achieving automated venting. This reduces manual intervention and eliminates the need to stop the equipment for venting or evacuation, thus improving the operating efficiency of the water purification equipment. Attached Figure Description

[0018] Figure 1 This is a front view of the ultrafiltration membrane water purification device of this utility model;

[0019] Figure 2 This is a top view of the ultrafiltration membrane water purification equipment of this utility model.

[0020] In the diagram: 1. Membrane tank; 2. Ultrafiltration membrane module; 3. Permeate pipe; 4. Jet device; 5. Siphon pipe; 6. Inlet pipe; 7. Regulating valve; 8. Water delivery pipe; 9. Glass pipe sight glass; 10. Permeate valve; 11. V-shaped sludge collection trough; 12. Sludge discharge pipe; 13. Sludge discharge valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] Reference Figure 1-2 An ultrafiltration membrane water purification device, comprising:

[0027] Membrane tank 1, with an inlet pipe 6 connected to the lower part, the inlet pipe 6 is used to connect to the sedimented water or filtered water after sedimentation;

[0028] Ultrafiltration membrane module 2 is fixed to the upper part of the membrane tank 1, and the top of the ultrafiltration membrane module 2 has a water collector;

[0029] The water production pipe 3 is connected at one end to the water collector and at the other end extends out of the membrane tank 1;

[0030] The jet device 4 is connected to one end of the product water pipe 3 located outside the membrane tank 1;

[0031] The siphon tube 5 is connected at one end to the top of the water production pipe 3 and at the other end to the jet port of the jet device 4.

[0032] When this utility model is in use, the settled water or filtered water enters the membrane tank 1 through the inlet pipe 6. As the liquid level gradually rises, the liquid level gradually submerges the membrane of the ultrafiltration membrane module 2. After being filtered by the membrane from the outside, the water enters the ultrafiltration membrane module 2, forcing the air in the ultrafiltration membrane module 2 to the upper water collector. The air in the water collector is then discharged out of the equipment along the product water pipe 3.

[0033] When the liquid level in membrane tank 1 exceeds the upper part of product water pipe 3, the filtered water in ultrafiltration membrane module 2 is discharged from product water pipe 3 under the pressure of the liquid level difference, thus realizing the water production process. However, during the operation of the equipment, some air will be released after the water passes through the pores of the ultrafiltration membrane. The released air accumulates at the top of product water pipe 3, and only a portion of the liquid level can be discharged along product water pipe 3, resulting in a decrease in water flow and affecting water supply efficiency. This utility model sets up a jet device 4 and a siphon pipe 5. After the filtered water flows out of product water pipe 3, it is accelerated by the jet device 4. Due to the Venturi effect, that is, after the water passes through the jet device 4, the flow velocity increases and the pressure decreases. The pressure at the jet outlet of the jet device 4 will be lower than the pressure of product water pipe 3, generating an adsorption effect. Thus, the air accumulated at the top of product water pipe 3 is sucked out through the siphon pipe 5, realizing automatic venting, reducing manual intervention, eliminating the need to stop the operation of the equipment for venting or evacuation, and improving the operating efficiency of the water production equipment.

[0034] Of course, the jet device 4 and the siphon 5 are not limited to venting the air released during equipment operation, but can also be used for the initial venting of the equipment.

[0035] In one specific implementation, the siphon tube 5 is provided with a regulating valve 7 for adjusting the opening degree of the siphon tube 5.

[0036] In one specific implementation, the diameter of the siphon pipe 5 is 15%-20% of the diameter of the water production pipe 3.

[0037] In one specific implementation, the rear end of the jet device 4 is connected to a water supply pipe 8, and a glass pipe sight glass 9 is provided on the water supply pipe 8 for visually observing the water production effect and the exhaust situation. Preferably, the glass pipe sight glass 9 is made of tempered borosilicate glass.

[0038] In one specific implementation, a water production valve 10 is also provided on the water supply pipeline 8, and the water production valve 10 is located downstream of the glass pipeline sight glass 9.

[0039] In one specific implementation, the bottom of the membrane tank 1 is provided with a V-shaped sludge collection trough 11 to facilitate sludge collection. The bottom of the V-shaped sludge collection trough 11 is connected to a sludge discharge pipe 12, and a sludge discharge valve 13 is provided on the sludge discharge pipe 12 to facilitate the discharge of sludge.

[0040] In one specific implementation, the ultrafiltration membrane module 2 is an inorganic flat ceramic membrane, and the ultrafiltration membrane module 2 is welded to the square tube on the upper part of the membrane tank 11.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ultrafiltration membrane water production apparatus, characterized by: The application relates to a water production device. The device comprises a membrane pool connected with an inlet pipe at the lower part; An ultrafiltration membrane group is fixed at the upper part of the membrane pool, and the top of the ultrafiltration membrane group is provided with a water collector; A water production pipe is connected with the water collector at one end and penetrates out of the membrane pool at the other end; A jet device is connected with the water production pipe at the end outside the membrane pool; A siphon pipe is connected with the top of the water production pipe at one end and connected with the jet port of the jet device at the other end.

2. The ultrafiltration membrane water production apparatus according to claim 1, characterized by: An adjusting valve is arranged on the siphon pipe.

3. The ultrafiltration membrane water production apparatus according to claim 1, characterized by: The diameter of the siphon pipe is 15%-20% of the diameter of the water production pipe.

4. The ultrafiltration membrane water production apparatus according to claim 1, characterized by: The rear end of the jet device is connected with a water delivery pipeline, and a glass pipeline sight glass is arranged on the water delivery pipeline.

5. The ultrafiltration membrane water production apparatus according to claim 4, characterized by: A water production valve is further arranged on the water delivery pipeline.

6. The ultrafiltration membrane water production apparatus according to claim 1, characterized by: A V-shaped sludge collecting groove is arranged at the bottom of the membrane pool, a sludge discharge pipe is connected with the bottom of the V-shaped sludge collecting groove, and a sludge discharge valve is arranged on the sludge discharge pipe.

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