Rack for electrodialysis membrane module

Abstract

The utility model relates to the technical field of electrodialysis, and provides a rack for an electrodialysis membrane module, which comprises a first side frame, a second side frame, a connecting bottom frame, four cross rods and four insulating sleeves, a first connecting piece and a second connecting piece of the first side frame and a first connecting piece and a second connecting piece of the second side frame are symmetrically arranged on two sides of the connecting bottom frame; two cross rods are respectively arranged between the first connecting piece of the first side frame and the first connecting piece of the second side frame in a penetrating mode, the other two cross rods are respectively arranged between the second connecting piece of the first side frame and the second connecting piece of the second side frame in a penetrating mode, and the four insulating sleeves are respectively arranged on the four cross rods in a sleeved mode. Graduated scales capable of extending out of the insulating sleeves in a sliding manner are respectively arranged at one ends of the four insulating sleeves; and one ends, far away from the end sealing nuts, of the four cross rods lock the electrodialysis membrane module arranged on the connecting underframe between the first side frame and the second side frame through nuts. The rack structure solves the problems that the existing rack structure for the electrodialysis membrane module is inconvenient to use and high in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodialysis, and particularly relates to a frame for an electrodialysis membrane module device. Background Art

[0002] The method of separating different solute particles by using the selective permeability of a semipermeable membrane is called dialysis. When dialysis is carried out under the action of an electric field, the phenomenon that charged solute particles in a solution migrate through the membrane is called electrodialysis. The technology of using electrodialysis for purification and separation of substances is called the electrodialysis method. It is a new technology developed in the 1950s of the 20th century. It was initially used for seawater desalination and is now widely used in the chemical industry, light industry, metallurgy, papermaking, and pharmaceutical industries. It is particularly valued in the preparation of pure water and the treatment of three wastes in environmental protection, such as acid-base recovery, electroplating waste liquid treatment, and recovery of useful substances from industrial wastewater.

[0003] For example, Chinese patent document: CN202223537639.2 discloses a general bipolar membrane electrodialysis hydraulic locking device, which includes a bracket (1). The bracket (1) is composed of a fixed clamping plate (2), a hydraulic cylinder support (3), and a crossbar (4). A plurality of membrane units (5) are arranged on the crossbar (4). The membrane units (5) on one side are in close contact with the fixed clamping plate (2). A hydraulic cylinder (6) is arranged in the hydraulic cylinder support (3). A movable clamping plate (7) is slidably arranged on the crossbar (4). One side of the movable clamping plate (7) abuts against the movable end of the hydraulic cylinder (6). The utility model can quickly arrange the membrane units neatly, improve the installation convenience, and enhance the installation efficiency. However, the frame of the above electrodialysis membrane module device uses a hydraulic cylinder for locking. Although the efficiency is improved to a certain extent during assembly, the structure is relatively complex and inconvenient, and the manufacturing cost is relatively high. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a frame for an electrodialysis membrane module device with simple and convenient installation and low manufacturing cost.

[0005] To solve this technical problem, the present utility model adopts the following solution: A frame for an electrodialysis membrane module, comprising a first side frame, a second side frame, a connecting bottom frame and four cross bars. The first side frame and the second side frame are connected by the connecting bottom frame. It further includes four insulating sleeves. At the upper and lower parts of the first side frame and the second side frame, a first connecting member and a second connecting member are respectively fixedly provided, and both ends of the first connecting member and the second connecting member protrude from the first side frame and the second side frame. The first connecting member and the second connecting member of the first side frame and the first connecting member and the second connecting member of the second side frame are symmetrically arranged on both sides of the connecting bottom frame. At both ends of the first connecting member and the second connecting member of the first side frame and the first connecting member and the second connecting member of the second side frame, there are mounting holes adapted to the cross bars. The four cross bars are all screws with a sealing nut provided at one end. Two cross bars are respectively passed through between the first connecting member of the first side frame and the first connecting member of the second side frame, and the other two cross bars are respectively passed through between the second connecting member of the first side frame and the second connecting member of the second side frame. The four insulating sleeves are respectively sleeved on the four cross bars, and the four insulating sleeves are respectively located between the first side frame and the second side frame. At one end of the four insulating sleeves, there are respectively provided scales that can slide out of the insulating sleeves. The ends of the four cross bars far from the side where the sealing nuts are provided are locked by nuts to fix the electrodialysis membrane module placed on the connecting bottom frame between the first side frame and the second side frame.

[0006] For further improvement, the ends of the four cross bars provided with sealing nuts are all synchronously located outside the first side frame or outside the second side frame.

[0007] For a further improvement, the ends of the four insulating sleeves provided with scales are located on the ends of the cross bars far from the side where the sealing nuts are provided.

[0008] For a further improvement, on the outer side walls of each of the insulating sleeves, there are provided chutes, and on the bottom surface of the scale, there are provided sliders adapted to the chutes on the insulating sleeves. The scale can slide out of the insulating sleeve through the cooperation of the slider and the chute on the insulating sleeve.

[0009] By adopting the foregoing technical solution, the beneficial effects of the present utility model are as follows: By symmetrically arranging the first connecting members and the second connecting members of the first side frame and the first connecting members and the second connecting members of the second side frame on both sides of the connecting chassis, both ends of the first connecting members and the second connecting members of the first side frame and the first connecting members and the second connecting members of the second side frame have mounting holes adapted to the cross bars. The four cross bars are all screw rods with end caps at one end. The four cross bars are inserted between the first side frame and the second side frame, and the four insulating sleeves are respectively sleeved on the four cross bars and are respectively located between the first side frame and the second side frame. The ends of the four cross bars far from the end caps are locked by nuts to fix the electrodialysis membrane unit placed on the connecting chassis between the first side frame and the second side frame. After the electrodialysis membrane unit is installed and placed on the connecting chassis, one end of the four insulating sleeves abuts against the inner sides of the first connecting members and the second connecting members of the first side frame, and the scale ends of the four insulating sleeves that can slide out of the insulating sleeves are pulled out to the inner sides of the first connecting members and the second connecting members of the second side frame. Thus, when the four cross bars are locked by nuts, the balance locking can be quickly adjusted through the scale, without the need to set up a hydraulic mechanism to lock the electrodialysis membrane unit. The installation is simple and convenient, greatly reducing the construction cost. At the same time, the setting of the insulating sleeves can safely isolate between the cross bars of the frame and the electrodialysis membrane unit, and it can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the front structural schematic diagram of the embodiment of the present utility model;

[0011] Figure 2 is Figure 1 the enlarged structural schematic diagram of part A of

[0012] Figure 3 is the side structural schematic diagram of the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Refer to Figures 1-3, Preferably, the frame of the electrodialysis membrane module of the present utility model includes a first side frame 1, a second side frame 2, a connecting bottom frame 3, four cross bars 4 and four insulating sleeves 5. The first side frame 1 and the second side frame 2 are connected by the connecting bottom frame 3. First connectors 11, 21 and second connectors 12, 22 are respectively fixedly provided at the upper and lower parts of the first side frame 1 and the second side frame 2, and both ends of the first connectors 11, 21 and the second connectors 12, 22 protrude from the first side frame 1 and the second side frame 2. The first connectors 11, 12 of the first side frame 1 and the first connectors 21, 22 of the second side frame 2 are symmetrically arranged on both sides of the connecting bottom frame 3. Both ends of the first connectors 11, 12 of the first side frame 1 and the first connectors 21, 22 of the second side frame 2 have mounting holes adapted to the cross bars 4. The four cross bars 4 are all screws with end caps 41 at one end. Two cross bars 4 are respectively passed through between the first connectors 11 of the first side frame 1 and the first connectors 21 of the second side frame 2, and the other two cross bars 4 are respectively passed through between the second connectors 12 of the first side frame 1 and the second connectors 22 of the second side frame 2. The ends of the four cross bars 4 with end caps 41 are all synchronously located outside the first side frame 1. The four insulating sleeves 5 are respectively sleeved on the four cross bars 4, and the four insulating sleeves 5 are respectively located between the first side frame 1 and the second side frame 2. Scales 6 that can slide out of the insulating sleeves are respectively provided at one ends of the four insulating sleeves 5. Slide grooves 51 are provided on the outer side walls of the insulating sleeves 5. The bottom surface of the scale 6 is provided with sliders adapted to the slide grooves 51 on the insulating sleeves 5. The scale 6 can slide out of the end of the insulating sleeve or retract onto the outer wall of the insulating sleeve through the cooperation of the slider and the slide groove on the insulating sleeve 5. The ends of the four insulating sleeves 5 provided with scales 6 are located on the ends of the cross bars 4 far from the end caps 41. The ends of the four cross bars 4 far from the end caps 41 lock the electrodialysis membrane module 7 placed on the connecting bottom frame 3 between the first side frame 1 and the second side frame 2 through nuts 42.

[0015] In the above embodiment, the ends of the four cross bars provided with end caps can also be all synchronously located outside the second side frame. The scale extending structure provided on each insulating sleeve can also be other moving structures that can realize the scale extending out of the end of the insulating sleeve or retracting onto the outer wall of the insulating sleeve.

[0016] Although the present utility model is specifically shown and introduced in combination with the preferred implementation embodiments, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims, and all of them are within the protection scope of the present utility model.

Claims

1. A frame for an electrodialysis membrane module, comprising a first side frame, a second side frame, a connecting bottom frame and four cross bars. The first side frame and the second side frame are connected by the connecting bottom frame, and it is characterized in that: It further includes four insulating sleeves. The upper and lower parts of the first side frame and the second side frame are respectively fixedly provided with a first connecting member and a second connecting member, and both ends of the first connecting member and the second connecting member protrude from the first side frame and the second side frame. The first connecting member and the second connecting member of the first side frame and the first connecting member and the second connecting member of the second side frame are symmetrically arranged on both sides of the connecting chassis. Both ends of the first connecting member and the second connecting member of the first side frame and the first connecting member and the second connecting member of the second side frame are provided with mounting holes adapted to the cross bars. The four cross bars are all screws with end caps at one end. Two cross bars are respectively inserted between the first connecting member of the first side frame and the first connecting member of the second side frame, and the other two cross bars are respectively inserted between the second connecting member of the first side frame and the second connecting member of the second side frame. The four insulating sleeves are respectively sleeved on the four cross bars and are respectively located between the first side frame and the second side frame. One end of each of the four insulating sleeves is provided with a scale that can slide out of the insulating sleeve. The ends of the four cross bars away from the end caps are locked by nuts to fix the electrodialysis membrane unit placed between the first side frame and the second side frame on the connecting chassis.

2. The rack for an electrodialysis membrane module according to claim 1, characterized in that: The ends of the four cross bars with end caps are all synchronously located outside the first side frame or outside the second side frame.

3. The frame for the electrodialysis membrane assembly according to claim 2, characterized in that: The ends of the four insulating sleeves provided with scales are located on the ends of the cross bars away from the end caps.

4. The rack for electrodialysis membrane module according to claim 3, characterized in that: Chutes are provided on the outer side walls of each insulating sleeve, and sliders adapted to the chutes on the insulating sleeves are provided on the bottom surface of the scale. The scale can slide out of the insulating sleeve through the cooperation of the sliders and the chutes on the insulating sleeves.

Images