CN212701379U - High-pressure flat membrane experimental equipment - Google Patents

Abstract

The utility model provides a high-pressure flat membrane experimental facility, which comprises a test cabinet, a valve, a pressure gauge, a switch, a power supply, a material tank, a feeding pump, a booster pump and a filtering membrane component, wherein the output end of the material tank is provided with a first feeding pipe in sequence according to the flowing direction of liquid, the feed pump, the second feed pipe, the booster pump, the stoste distributing pipe, the stoste pipe, the membrane cisterna, concentrate pipe and concentrate distributing pipe, the concentrate distributing pipe is connected with second return pipe and stand-off pipe through the coupling, the output of first return pipe and second return pipe is located the top of material jar, the inner wall of test cabinet is provided with inverter motor, filtration membrane module includes the three membrane cisterna that connects the setting in parallel, the membrane cisterna includes membrane cisterna and lower membrane cisterna, it is provided with the bell jar with the interface center in membrane cisterna down to go up the membrane cisterna, be provided with the runner plate in the bell jar in last membrane cisterna, the top of runner plate is provided with. The device has the advantages of strong filtering capacity, high test efficiency and utilization rate, reasonable design and suitability for large-scale popularization.

Description

High-pressure flat membrane experimental equipment

Technical Field

The utility model belongs to the technical field of the membrane filtration equipment, especially, relate to a dull and stereotyped membrane experimental facilities of high pressure.

Background

The membrane filtration is a solid-liquid separation technology, which uses membrane pores to filter water and intercept impurities in the water, and belongs to a physical separation method. The filtration membranes are classified according to the size of the intercepted raw water particles, and the membrane pores are divided into microfiltration Membranes (MF), ultrafiltration membranes (UF), nanofiltration membranes (NF) and reverse osmosis membranes (RO) from coarse to fine. All manufacturers for producing the filter membrane need to test the performance of the membrane in a certain amount, and need to use equipment special for testing the performance of the membrane, and place the equipment on the equipment for testing the use condition of the membrane under the conditions of different temperatures, pressures, flow rates and the like.

Most of the existing membrane test equipment adopts one-way detection, so that the reliability of experimental data is low, the experimental time is long, and the experimental efficiency is low; moreover, the runner of the membrane pool of the testing equipment is simple, and the phenomenon that the feed liquid is distributed on the membrane unevenly is easy to occur, so that the testing effect on the filtering membrane is influenced, and secondly, the power of the booster pump is constant, and the overpressure protection capability is not provided. Existing patent cn201520756578.x discloses an electrically controlled no-negative pressure water supply device and a water supply system. Automatically controlled no negative pressure water supply equipment, including main inlet tube, main outlet pipe, water pump and automatically controlled cabinet, be provided with the controller in the automatically controlled cabinet, the water pump is connected main inlet tube with between the main outlet pipe, still be provided with the function extension mouth of pipe of switch on the main inlet tube, be provided with first pressure sensor on the main inlet tube, be provided with second pressure sensor on the main outlet pipe, first pressure sensor with second pressure sensor respectively with the controller is connected. The water supply control method of the equipment comprises a dynamic water pressure adjusting mode and a water tank water supply mode, so that the stability and the reliability of the water supply of the equipment are improved, the manufacturing cost and the volume of the non-negative pressure water supply equipment are reduced without a steady flow compensator, and the installation process is simplified. The device technology has important significance on the system pressure balance if applied to the membrane test equipment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell membrane test equipment exists, provide a reasonable in design, simple structure, the better, the higher test efficiency of filter effect and have the test efficiency high pressure flat membrane experimental facilities of superpressure protection ability.

In order to achieve the above object, the technical solution adopted by the present invention is that, the high-pressure flat membrane experimental facility provided by the present invention comprises a test cabinet, wherein the test cabinet is provided with a valve, a pressure gauge and a switch, the test cabinet is internally provided with a power supply, a material tank, a feeding pump, a booster pump and a filtering membrane component, the output end of the material tank is sequentially provided with a first feeding pipe, a feeding pump, a second feeding pipe, a booster pump, a raw liquid distribution pipe, a raw liquid pipe, a membrane pool, a concentrated liquid pipe and a concentrated liquid distribution pipe according to the flowing direction of liquid, the raw liquid pipe, the concentrated liquid pipe, a first return pipe, a second return pipe and a lead-out pipe are all provided with valves, the raw liquid pipe is connected in parallel with the raw liquid distribution pipe, the concentrated liquid pipe is connected in parallel with the concentrated liquid distribution pipe, the second feeding pipe is connected with the first return pipe through a pipe joint, the concentrated liquid distribution pipe, the output of first return pipe and second return pipe all passes the test cabinet top up and extends to the inside of material jar, the inner wall of test cabinet is provided with the inverter motor with feed pump electric connection, filtration membrane module includes the three membrane pond that connects in parallel and sets up, the membrane pond includes membrane pond and lower membrane pond, it is provided with the bell jar with the butt joint face center in membrane pond down to go up the membrane pond, it is a plurality of flow path boards that are radial distribution to be provided with in the bell jar in membrane pond to go up, the top of flow path board is provided with filtration membrane, the top of going up the membrane pond is provided with and sees through the liquid mouth, the bottom and the side in membrane pond are connected with stoste pipe and concentrated liquid pipe respectively down.

Preferably, the second feeding pipe and the stock solution distribution pipe are respectively provided with a pressure sensor, the test cabinet is provided with a control instrument connected with the pressure sensors, and the variable frequency motor is electrically connected with the control instrument.

Preferably, the bottom of the booster pump is provided with a convex mounting plate.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the high-pressure flat membrane experimental equipment provided by the utility model adopts a circulating filtration mode to improve the testing efficiency of the filtration membrane, and the design of a special flow passage in the membrane pool further improves the accuracy of the membrane test; meanwhile, the device has an overpressure protection function, is reasonable in design, simple in structure and suitable for large-scale popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is an isometric view of a high pressure flat sheet membrane experimental setup provided in the examples;

FIG. 2 is an isometric view of the high pressure flat sheet membrane experimental setup provided in the examples in another orientation;

FIG. 3 is an isometric view of an upper membrane basin provided by an embodiment;

in the above figures, 1, test cabinet; 2. a valve; 3. a power source; 4. a material tank; 5. a feed pump; 6. A filtration membrane module; 61. a membrane tank; 611. a membrane feeding pool; 612. a membrane tank is arranged; 613. a tapered groove; 614. A runner plate; 7. a variable frequency motor; 8. a first feed pipe; 9. a second feed pipe; 10. a booster pump; 11. a stock solution distribution pipe; 12. a stock solution pipe; 13. a concentrate tube; 14. a concentrated solution distribution pipe; 15. A first return pipe; 16. a second return pipe; 17. a lead-out pipe; 18. a pressure sensor; 19. and (5) controlling the instrument.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1, fig. 2 and fig. 3, the utility model provides a high-pressure flat membrane experimental facilities, including test cabinet 1, be provided with valve 2, manometer and switch on the test cabinet 1, the inside of test cabinet 1 is provided with power 3, material jar 4, feed pump 5, booster pump 10 and filtration membrane module 6. The structures of the power source 3, the material tank 4, the feeding pump 5 and the booster pump 10 are the prior art, and the description of this embodiment is omitted. The utility model discloses the key is that the pipeline distribution form that flows at system's circulation is provided for the stoste to improve the structure of membrane pond 61, with the filtering quality who improves whole equipment.

Specifically, the utility model provides an output of material jar 4 has set gradually first feed tube 8, feed pump 5, second feed tube 9, booster pump 10, stoste distributing pipe 11, stoste pipe 12, membrane cisterna 61, concentrate pipe 13 and concentrate distributing pipe 14 according to the direction of liquid flow, all be provided with valve 2 on stoste pipe 12, concentrate pipe 13, first return pipe 15, second return pipe 16 and the stand-off pipe 17, stoste pipe 12 connects in parallel on stoste distributing pipe 11, concentrate pipe 13 connects in parallel on concentrate distributing pipe 14, second feed tube 9 is connected with first return pipe 15 through the coupling, concentrate distributing pipe 14 is connected with second return pipe 16 and stand-off pipe 17 through the coupling, the output of first return pipe 15 and second return pipe 16 all upwards passes the top of test cabinet 1 and extends to the inside of material jar 4, the inner wall of test cabinet 1 is provided with inverter motor 7 with feed pump 5 electric connection, the filtering membrane assembly 6 comprises three membrane tanks 61 arranged in parallel, each membrane tank 61 comprises an upper membrane tank 611 and a lower membrane tank 612, a tapered groove 613 is formed in the center of the abutting surface of each upper membrane tank 611 and each lower membrane tank 612, a plurality of radially-distributed runner plates 614 are arranged in the tapered groove 613 of each upper membrane tank 611, filtering membranes are arranged at the tops of the runner plates 614, a liquid permeating port is formed in the top of each upper membrane tank 611, and the bottom and the side of each lower membrane tank 612 are respectively connected with a raw liquid pipe 12 and a concentrated liquid pipe 13. The device enables the feed liquid to realize circulating filtration among the material tank 4, the feeding pump 5, the booster pump 10 and the membrane pool 61, if a first return pipe 15 can send part of stock solution back to the material tank 4 according to a certain proportion, and a second return pipe 16 returns the concentrated solution back to the material tank 4 to continue the filtration process. In this way, the testing efficiency of the device on the filtering membrane is improved by adopting a circulating filtering mode. Simultaneously, this device has adopted the design of many membrane cisternas 61 to cooperate multiple test scheme in a flexible way, if adopt a plurality of membrane cisternas 61 to experiment, also can use one of them to experiment alone, and the practicality is better, and the utilization ratio is higher. The membrane tank 61 is designed by the flow channel plate 614, so that the flow of the feed liquid can be uniformly distributed, the flow passing through each position of the filtering membrane is the same, and the membranes such as microfiltration, ultrafiltration, nanofiltration, reverse osmosis and the like can be tested.

Further, the utility model discloses be provided with a pressure sensor 18 on second feed pipe 9 and stoste distributing pipe 11 respectively, be provided with the control instrument 19 of being connected with pressure sensor 18 on the test cabinet 1, inverter motor 7 and 19 electric connection of control instrument. In this way, the pressure sensor 18 can feed back the system pressure to the control instrument 19, the control instrument 19 sends a signal to the variable frequency motor 7 according to a predetermined rated pressure, and the variable frequency motor 7 adjusts the pressure of the booster pump 10, so that a good overpressure protection function is obtained. It should be noted that the control principle of the pressure sensor 18, the control instrument 19, the variable frequency motor 7 and the pump structure is the prior art, and the description of this embodiment is omitted here. Consider the influence of system temperature, the utility model provides a be provided with temperature sensor on the stoste distributing pipe 11, be provided with the overtemperature prote ware with temperature sensor and 3 electric connection of power on the test cabinet 1, the overtemperature prote ware can be after the overtemperature of system temperature cutting off power 3 in order to guarantee the security performance of system operation

For improve equipment's working property, the utility model discloses be provided with the mounting panel of type in the bottom of booster pump 10, play absorbing effect on the one hand, on the other hand then has dampproofing ability.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (3)

1. A high-pressure flat membrane experimental facility comprises a test cabinet, wherein a valve, a pressure gauge and a switch are arranged on the test cabinet, a power supply, a material tank, a feeding pump, a booster pump and a filtering membrane assembly are arranged in the test cabinet, the high-pressure flat membrane experimental facility is characterized in that the output end of the material tank is sequentially provided with a first feeding pipe, a feeding pump, a second feeding pipe, a booster pump, a stock solution distribution pipe, a stock solution pipe, a membrane pool, a concentrated solution pipe and a concentrated solution distribution pipe according to the flowing direction of liquid, valves are arranged on the stock solution pipe, the concentrated solution pipe, a first return pipe, a second return pipe and a lead-out pipe, the stock solution pipe is connected on the stock solution distribution pipe in parallel, the concentrated solution pipe is connected on the concentrated solution distribution pipe in parallel, the second feeding pipe is connected with the first return pipe through a pipe joint, the concentrated solution distribution pipe is, the output of first return pipe and second return pipe all passes the test cabinet top up and extends to the inside of material jar, the inner wall of test cabinet is provided with the inverter motor with feed pump electric connection, filtration membrane module includes the three membrane pond that connects in parallel and sets up, the membrane pond includes membrane pond and lower membrane pond, it is provided with the bell jar with the butt joint face center in membrane pond down to go up the membrane pond, it is a plurality of flow path boards that are radial distribution to be provided with in the bell jar in membrane pond to go up, the top of flow path board is provided with filtration membrane, the top of going up the membrane pond is provided with and sees through the liquid mouth, the bottom and the side in membrane pond are connected with stoste pipe and concentrated liquid pipe respectively down.

2. The high-pressure flat membrane experimental facility as claimed in claim 1, wherein the second supply pipe and the raw liquid distribution pipe are respectively provided with a pressure sensor, the test cabinet is provided with a control instrument connected with the pressure sensor, and the variable frequency motor is electrically connected with the control instrument.

3. The high-pressure flat membrane experimental facility as claimed in claim 2, wherein the bottom of the booster pump is provided with a convex-shaped mounting plate.

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