Novel rack for electrodialysis membrane module

Abstract

The utility model relates to the technical field of electrodialysis, and provides a novel rack for an electrodialysis membrane module, which comprises a first clamping plate, a second clamping plate, a connecting underframe, two first cross rods, two second cross rods, a hydraulic pump, a first hydraulic jack and a second hydraulic jack, the second clamping plate is arranged on the two first transverse rods and the two second transverse rods in a sleeving mode in the mode that the second clamping plate can move towards the first clamping plate through an installation sleeve, and the clamping face of the second clamping plate faces the clamping face of the first clamping plate. The hydraulic pump is respectively connected with the first hydraulic jack and the second hydraulic jack through oil pipes to drive the first hydraulic jack and the second hydraulic jack to synchronously push the second clamping plate to move and apply pressure to the first clamping plate, so that the second clamping plate and the first clamping plate are matched to clamp the electrodialysis membrane module placed on the connecting underframe. The utility model solves the problem that the upper part or the lower part of the whole membrane module device is easy to have internal seepage and external leakage due to the fact that the existing rack for the electrodialysis membrane module device only applies pressure to the middle part of the clamping plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrodialysis, especially to a novel electrodialysis membrane group device rack. BACKGROUND

[0002] Electrodialysis is a kind of membrane separation equipment which uses the selective permeability of membrane to separate the charged electrolyte and uncharged substance in water to achieve the expected purpose of desalination, concentration, etc. The main internal components of electrodialysis are cation and anion exchange membranes and separators. The compartments formed by the separators are the channels for liquid flow. The compartments through which the material passes are the dilution chambers, and the compartments through which the concentrated water passes are the concentration chambers. Under the action of a direct current electric field, the physical and chemical process of ions migrating from one part of water to another part of water is driven by the potential difference, using the selective permeability of cation and anion exchange membranes to cations and anions. The ions in the dilution chamber migrate to the concentration chamber, and the ions in the concentration chamber cannot migrate to the dilution chamber due to the selective permeability of the membrane, that is, the inorganic salts in the wastewater are desalted or concentrated. Electrodes, water distribution plates and clamping plates are placed at both ends of the electrodialysis, and are fastened by screws and nuts to form an electrodialysis membrane group device. The electrodes are usually fixed to the water distribution plate, which has water inlets and outlets for dilution liquid or concentrated liquid and electrode liquid, and the water distribution channels of the water distribution plate guide the dilution liquid or concentrated liquid to the electrodialysis and guide the electrode liquid to the surface of the electrode; the clamping plate has screw holes at the edge for fastening the membrane group device.

[0003] As disclosed in Chinese patent document CN202223537639.2, a universal bipolar membrane electrodialysis hydraulic locking device includes a support (1) composed of a fixed clamping plate (2), a hydraulic cylinder support (3) and a crosspiece (4), the crosspiece (4) is provided with a plurality of membrane units (5), one side of the membrane unit (5) is in close contact with the fixed clamping plate (2), the hydraulic cylinder support (3) is provided with a hydraulic cylinder (6) inside, the crosspiece (4) is provided with a movable clamping plate (7) slidingly, one side of the movable clamping plate (7) is in contact with the movable end of the hydraulic cylinder (6), the utility model can quickly arrange the membrane units in order, improve the installation convenience and efficiency. However, the rack of the above-mentioned electrodialysis membrane group device uses a hydraulic cylinder to push the middle part of the clamping plate to lock, which improves the efficiency to a certain extent during assembly, but the structure is relatively complex and inconvenient, and the clamping plate is only pressed in the middle part, which makes the upper part or the lower part of the whole membrane group device prone to internal leakage and external leakage. UTILITY MODEL CONTENTS

[0004] Therefore, in view of the above problems, the utility model provides a novel electrodialysis membrane group device rack which can uniformly press the electrodialysis membrane group device to prevent internal leakage and external leakage, the pressing process is stable, and the clamping plate is balanced in stress.

[0005] To solve the technical problem, the utility model discloses the following scheme: A novel rack for electrodialysis membrane group, including first clamping plate, second clamping plate, connecting chassis, two first cross bars and two second cross bars, still including hydraulic pump, first hydraulic jack and second hydraulic jack, one side of connecting chassis is equipped with support frame, first clamping plate is located on the opposite side of setting support frame on connecting chassis, two first cross bars are respectively parallel and symmetric and are located on the upper part of both sides between support frame and first clamping plate, two second cross bars are respectively parallel and symmetric and are located on the middle part of both sides between support frame and first clamping plate and two second cross bars are respectively located below two first cross bars, the both sides of second clamping plate are equipped with the installation sleeve of adapting to two first cross bars and two second cross bars respectively, second clamping plate is movably sleeved on two first cross bars and two second cross bars through installation sleeve to first clamping plate, and the clamping surface of second clamping plate faces the clamping surface of first clamping plate, first hydraulic jack is located on the upper part of support frame, and the pressure output end of first hydraulic jack is connected with the upper part of the side of second clamping plate away from first clamping plate through flange, second hydraulic jack is located on the lower part of support frame, and the pressure output end of second hydraulic jack is connected with the lower part of the side of second clamping plate away from first clamping plate through flange, the hydraulic pump is connected with first hydraulic jack and second hydraulic jack through oil pipe respectively, and first hydraulic jack and second hydraulic jack are driven to synchronously push second clamping plate to move to first clamping plate and pressurize to make second clamping plate and first clamping plate cooperate and clamp the electrodialysis membrane group placed on connecting chassis.

[0006] Further improvement, the second clamping plate and the first clamping plate are mirror image arranged.

[0007] Further improvement, the hydraulic pump is an ultrahigh pressure hydraulic pump.

[0008] Further improvement, the first hydraulic jack and the second hydraulic jack are fixedly connected with the support frame through flanges respectively.

[0009] The utility model discloses the beneficial effect is: through setting up first clamping plate and support frame respectively on the both sides of connecting chassis and setting up the second clamping plate that can move to first clamping plate and press on two first cross bars and two second cross bars between first clamping plate and support frame, through the output of first hydraulic jack and the output of second hydraulic jack are fixedly connected with the upper portion and lower portion of second clamping plate respectively through flange, and the second clamping plate is moved to first clamping plate and is pressed by the synchronous pushing of hydraulic pump inputting hydraulic oil to first hydraulic jack and second hydraulic jack, makes the second clamping plate and first clamping plate cooperation clamping and places the electrodialysis membrane group on connecting chassis, and first hydraulic jack and second hydraulic jack are connected with second clamping plate through flange and make it become integral structure, and the overall structure is stable, and the clamping force of synchronous pushing through upper portion and lower portion is more uniform, realizes the even pressure of electrodialysis membrane group and prevents internal permeate and external leakage, and the pressure process is stable, and makes the stress balance of clamping plate, and simultaneously through the slow pushing function of first hydraulic jack and second hydraulic jack under the synchronous driving of hydraulic pump, the feeding speed of its upper and lower keeps the high consistency, and such characteristics have great help for the balance of pressure, can make the whole operation process more stable, accurate, effectively avoid various problems that can be produced because of uneven pressure, and first hydraulic jack and second hydraulic jack are fixedly connected with support frame through flange, so that the structure between first hydraulic jack and second hydraulic jack and support frame is more stable, improves the balance of pressure process, can be widely applied. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is part structure schematic diagram of the utility model embodiment. DETAILED DESCRIPTION

[0011] The utility model will be further explained in connection with the drawings and specific embodiment.

[0012] REFERENCE Figure 1The utility model provides a novel rack for electrodialysis membrane group, preferably, the novel rack for electrodialysis membrane group of the utility model, including first clamping plate 1, second clamping plate 2, connecting chassis 3, two first cross bars 4, two second cross bars 5, hydraulic pump 6, first hydraulic jack 7 and second hydraulic jack 8, one side of connecting chassis 3 is equipped with support frame 31, first clamping plate 1 is located on connecting chassis 3 and is located on the opposite side of setting support frame 31, two first cross bars 4 are respectively parallel and symmetrically arranged on the upper portion of both sides between support frame 31 and first clamping plate 1, two second cross bars 5 are respectively parallel and symmetrically arranged on the middle portion of both sides between support frame 31 and first clamping plate 1, and two second cross bars 5 are respectively located below two first cross bars 4, the both sides of second clamping plate 2 are respectively equipped with the installation sleeve 21 of adapting with two first cross bars 4 and two second cross bars 5, second clamping plate 2 is movably sleeved on two first cross bars 4 and two second cross bars 5 through installation sleeve 21, and the clamping surface of second clamping plate 2 faces the clamping surface of first clamping plate 1, first hydraulic jack 7 is arranged on the upper portion of support frame 31, and the pressure output end of first hydraulic jack 7 is connected with the upper portion of one side of second clamping plate 2 away from first clamping plate 1 through flange 9, second hydraulic jack 8 is arranged on the lower portion of support frame 31, and the pressure output end of second hydraulic jack 8 is connected with the lower portion of one side of second clamping plate 2 away from first clamping plate 1 through flange 9, the hydraulic oil output end of hydraulic pump 6 is connected with the oil inlet hole of first hydraulic jack 7 and the oil inlet hole of second hydraulic jack 8 through oil pipe respectively, and the oil inlet of hydraulic pump 6 is connected with the oil return hole of first hydraulic jack 7 and the oil return hole of second hydraulic jack 8 through oil pipe respectively, the hydraulic pump 6 is superhigh pressure hydraulic pump, and the high pressure hydraulic oil output of hydraulic pump 6 drives first hydraulic jack 7 and second hydraulic jack 8 to synchronously push second clamping plate 2 to move to first clamping plate 1 to press and make second clamping plate 2 and first clamping plate 1 cooperate to clamp the electrodialysis membrane group placed on connecting chassis 3, when needing to replace the cation exchange membrane or the diaphragm of electrodialysis module for maintenance, hydraulic pump 6 starts oil return to make first hydraulic jack 7 and second hydraulic jack 8 retract slowly to drive second clamping plate 2 to move to the direction away from first clamping plate 1 and loosen electrodialysis module.

[0013] In the above embodiment, the second clamping plate and the first clamping plate can be two pressure plates arranged as mirror images of each other. The hydraulic pump can also be a conventional model that only needs to exert a pressure that can satisfy the cooperation of the second clamping plate and the first clamping plate to clamp the electrodialysis membrane group placed on the connecting chassis without internal liquid leakage and external liquid leakage. Meanwhile, the first hydraulic jack and the second hydraulic jack can also be fixedly connected to the support frame through flanges, which enhances the stability of the overall structure connection and the balance when the pressure is applied.

[0014] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A novel frame for an electrodialysis membrane module, comprising a first clamping plate, a second clamping plate, a connecting base frame, two first crossbars, and two second crossbars, characterized in that: It also includes a hydraulic pump, a first hydraulic jack, and a second hydraulic jack. A support frame is provided on one side of the connecting base frame. The first clamping plate is located on the connecting base frame on the opposite side of the support frame. Two first horizontal bars are parallel and symmetrically arranged on the upper sides of both sides between the support frame and the first clamping plate. Two second horizontal bars are parallel and symmetrically arranged on the middle sides of both sides between the support frame and the first clamping plate, with the two second horizontal bars located directly below the two first horizontal bars. Mounting sleeves adapted to the two first and two second horizontal bars are provided on both sides of the second clamping plate. The second clamping plate is movably fitted onto the two first and two second horizontal bars via the mounting sleeves. The clamping surface of the plate faces the clamping surface of the first clamping plate. The first hydraulic jack is located on the upper part of the support frame, and the pressure output end of the first hydraulic jack is connected to the upper part of the side of the second clamping plate away from the first clamping plate via a flange. The second hydraulic jack is located on the lower part of the support frame, and the pressure output end of the second hydraulic jack is connected to the lower part of the side of the second clamping plate away from the first clamping plate via a flange. The hydraulic pump is connected to the first hydraulic jack and the second hydraulic jack via oil pipes, which drive the first hydraulic jack and the second hydraulic jack to push the second clamping plate to move towards the first clamping plate and apply pressure so that the second clamping plate and the first clamping plate cooperate to clamp the electrodialysis membrane unit placed on the connecting base frame.

2. The frame for the novel electrodialysis membrane module according to claim 1, characterized in that: The second clamping plate is a mirror image of the first clamping plate.

3. The frame for the novel electrodialysis membrane module according to claim 1, characterized in that: The hydraulic pump is an ultra-high pressure hydraulic pump.

4. The frame for the novel electrodialysis membrane module according to claim 1, characterized in that: The first hydraulic jack and the second hydraulic jack are fixedly connected to the support frame via flanges, respectively.

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