Modular rectangular electrolytic hydrogen production equipment

Abstract

The utility model provides modular rectangular electrolytic hydrogen production equipment which is characterized in that a plurality of single-module electrolysis devices are aligned in an array to form a group, polar plate flanges are arranged at the two ends of a single-module electrolysis device combination, polar plate clamping bolts are inserted into fixing holes from the outer sides of the polar plate flanges, and the polar plate flanges are locked at the two ends of the single-module electrolysis device combination through nuts; an electrolyte input pipe is arranged on the lower side of the single-module electrolysis device; a rectangular electrolytic cell is arranged in the middle of the single-module electrolysis device, anode fixing plates are arranged in the middle of the rectangular electrolytic cell and are connected in series through anode clamping bolts, and two ends of the anode fixing plates are locked and fixed by nuts; a hydrogen output pipe and an oxygen output pipe are arranged on the upper side of the single-module electrolysis device and are respectively connected with a hydrogen collecting output pipe and an oxygen collecting outlet pipe. According to the utility model, the rectangular design is adopted, the structure is simplified, the material utilization rate is improved, the electric leakage problem of a public channel is eliminated through the design of the single-module electrolysis device, and meanwhile, the production and installation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic hydrogen production field, specifically, relate to a module formula rectangular electrolytic hydrogen production equipment. BACKGROUND

[0002] At present, the common electrolyte channel design is adopted in the electrolytic cell. Generally, the cathode channel and the anode channel are arranged separately and include the outflow channels of the cathode liquid and the anode liquid. This design principle leads to an inevitable problem, i.e. the leakage problem of the electrolytic cell. Since the electrolyte channel directly connects a high potential and a low potential, current will inevitably be generated between the electrolyte (saturated strong sodium oxide or strong potassium oxide solution), and the electrolyte channel actually connects the positive electrode and the negative electrode of the electrolytic cell, which will cause certain electric loss. In the past, the electric loss had little effect on the functionality of the electrolytic cell, which was generally below 10 NM / h, so this design has been used until now. However, with large-scale hydrogen production becoming the main application scenario of the electrolytic equipment, energy consumption has become a key technical index of the electrolytic cell. Therefore, solving the leakage problem of the electrolytic cell is crucial for low-cost operation. 3

[0003] The small electrolytic cell adopts a vertical installation method which is relatively simple, but after the electrolytic cell is large-sized, the vertical installation method brings great difficulty to operation, but there is no better solution due to structural reasons.

[0004] In addition, the electrolytic cell currently adopts a circular structure design, while the common membrane material and electrode material are rectangular structures, which need to be cut accordingly, and the loss is as high as about 25%. Since the electrode and the membrane are very valuable materials, the loss of other materials is also the same, so the production cost of the electrolytic cell is greatly increased. UTILITY MODEL CONTENTS

[0005] The utility model is just based on the above technical problems, and proposes a module formula rectangular electrolytic hydrogen production equipment, which realizes simplified structure through a single module electrolytic device, reduces the hydrogen production energy consumption of the electrolytic cell, and improves the production and installation efficiency; the electrolytic cell adopts a rectangular form, which reduces the loss rate of the electrolytic cell material.

[0006] ​The utility model provides a kind of modular rectangular electrolytic hydrogen production equipment, including polar plate flange, single module electrolytic device, anode clamping bolt, hydrogen collection output pipe, connecting channel, oxygen collection output pipe, polar plate clamping bolt, negative electrode fixing bolt and electrolyte input main pipe, the edge of single module electrolytic device is equipped with a plurality of fixed holes, a plurality of single module electrolytic device array alignment group, the both ends of single module electrolytic device combination are equipped with polar plate flange, polar plate clamping bolt is inserted into fixed hole from the outside of polar plate flange, and polar plate flange is locked in the both ends of single module electrolytic device combination with nut;The downside of single module electrolytic device is equipped with electrolyte input pipe, and electrolyte input pipe is connected with electrolyte input main pipe through connecting channel;The middle part of single module electrolytic device is rectangular electrolytic cell, and the middle part of rectangular electrolytic cell is equipped with anode fixed plate, and anode fixed plate is connected by anode clamping bolt and is locked and fixed by nut at both ends;The upside of single module electrolytic device is equipped with hydrogen output pipe and oxygen output pipe, and hydrogen output pipe and oxygen output pipe are connected with hydrogen collection output pipe and oxygen collection output pipe respectively through connecting channel.

[0007] In a possible implementation, the combination of the single module electrolytic devices can be a single combination or multiple combinations, and the multiple combinations can be arranged in a horizontal straight line.

[0008] In a possible implementation, the rectangular electrolytic cell is a zero-polar-distance electrolytic cell.

[0009] In a possible implementation, a threaded hole is arranged at the center of the outside of the polar plate flange, and a negative electrode fixing bolt is arranged at the threaded hole, with the inner end of the negative electrode fixing bolt abutting against the outside of the single module electrolytic device.

[0010] In a possible implementation, a through hole corresponding to the fixed hole of the single module electrolytic device is arranged on the polar plate flange, and the both ends of the polar plate clamping bolt pass through the through hole.

[0011] In a possible implementation, the polar plate flange, the anode clamping bolt, the polar plate clamping bolt and the negative electrode fixing bolt are made of copper. Advantages

[0012] 1. The single module electrolytic device is combined to form the modular rectangular electrolytic hydrogen production equipment, so that the production and installation efficiency is improved.

[0013] 2. The electrolytic cell is rectangular, so that the structure is simplified and the material utilization rate is improved.

[0014] 3. The unit electrolytic channel is designed separately, so that the electric leakage problem of the common channel is eliminated.

[0015] 4. The electrolytic cell is designed with zero-polar-distance, so that the electrolytic power consumption is reduced. DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure schematic diagram of the utility model is shown.

[0017] Figure 2 The single module electrolytic device schematic diagram of the utility model is shown.

[0018] In the drawing, 1-polar plate flange;2-single module electrolytic device;3-anode clamping bolt;4-hydrogen collection output pipe;5-connection channel;6-oxygen collection output pipe;7-polar plate clamping bolt;8-cathode fixing bolt;9-electrolyte input main pipe;201-fixing hole;202-electrolyte input pipe;203-rectangular electrolytic cell;204-anode fixing plate;205-hydrogen output pipe;206-oxygen output pipe. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purpose, features and advantages of the utility model can be more clearly understood, the utility model is further described in detail below combining with the drawing and specific embodiment.It should be explained that, in the case of no conflict, the embodiment of the application and the features in the embodiment can be combined with each other.

[0020] As Figures 1-2 The utility model discloses a module type rectangular electrolytic hydrogen production equipment, including polar plate flange 1, single module electrolytic device 2, anode clamping bolt 3, hydrogen collection output pipe 4, connection channel 5, oxygen collection output pipe 6, polar plate clamping bolt 7, cathode fixing bolt 8 and electrolyte input main pipe 9, the edge of single module electrolytic device 2 is equipped with a plurality of fixed holes 201, and a plurality of single module electrolytic devices 2 are arrayed and aligned into groups, and the both ends of single module electrolytic device 2 combination are equipped with polar plate flange 1, and the polar plate flange 1 is equipped with the through hole corresponding to the fixed hole 201 of single module electrolytic device 2 one by one, and the both ends of polar plate clamping bolt 7 are passed out from the through hole, and polar plate flange 1 is locked in the both ends of single module electrolytic device 2 combination with nut;The downside of single module electrolytic device 2 is equipped with electrolyte input pipe 202, and electrolyte input pipe 202 is connected with electrolyte input main pipe 9 through connection channel 5;The middle part of single module electrolytic device 2 is rectangular electrolytic cell 203, and the middle part of rectangular electrolytic cell 203 is equipped with anode fixing plate 204, and anode fixing plate 204 is connected by anode clamping bolt 3 and is locked and fixed at both ends by nut;The upside of single module electrolytic device 2 is equipped with hydrogen output pipe 205 and oxygen output pipe 206, and hydrogen output pipe 205 and oxygen output pipe 206 are connected with hydrogen collection output pipe 4 and oxygen collection output pipe 6 respectively through connection channel 5.

[0021] In a possible implementation, the combination of single module electrolytic device 2 can be single combination or multiple combinations, and the multiple combinations can be arranged in horizontal or vertical lines.

[0022] In one possible implementation, the rectangular electrolytic cell 203 is a zero-gap electrolytic cell.

[0023] In one possible implementation, a screw hole is provided at the center of the outer side of the electrode flange 1, and a negative electrode fixing bolt 8 is provided at the screw hole. The inner end of the negative electrode fixing bolt 8 is pressed against the outer side of the single module electrolysis device 2.

[0024] In one possible implementation, the electrode flange 1, anode clamping bolt 3, electrode clamping bolt 7, and negative electrode fixing bolt 8 are made of copper.

[0025] Example 1: As Figure 1 As shown, a modular rectangular electrolysis hydrogen production device is composed of eight single-module electrolysis units 2. The anodes of the single-module electrolysis units 2 are combined by copper anode clamping bolts 3. The eight single-module electrolysis units 2 are connected in series through fixing holes 201 by electrode clamping bolts 7. The eight single-module electrolysis units 2 are reinforced by electrode flanges 1 and nuts. The electrolyte input pipe 202, hydrogen output pipe 205 and oxygen output pipe 206 of the single-module electrolysis units 2 are connected to the electrolyte input main pipe 9, hydrogen collection and output pipe 4 and oxygen collection and outlet pipe 6 respectively through the connecting channel 5.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A modular rectangular electrolytic hydrogen generation plant, characterized by, The single module electrolytic device (2) is provided with a plurality of fixing holes (201) at the edge, a plurality of single module electrolytic devices (2) are arrayed in alignment to form a group, both ends of the single module electrolytic device (2) group are provided with the polar plate flange (1), the polar plate clamping bolt (7) is inserted into the fixing hole (201) from the outside of the polar plate flange (1), and the polar plate flange (1) is locked at both ends of the single module electrolytic device (2) group by using a nut; the lower side of the single module electrolytic device (2) is provided with an electrolyte input pipe (202), the electrolyte input pipe (202) is connected with the electrolyte input main pipe (9) through the connecting channel (5); the middle part of the single module electrolytic device (2) is a rectangular electrolytic cell (203), the middle part of the rectangular electrolytic cell (203) is provided with an anode fixed plate (204), the anode fixed plate (204) is connected by the anode clamping bolt (3) and is locked and fixed at both ends by using a nut; the upper side of the single module electrolytic device (2) is provided with a hydrogen output pipe (205) and an oxygen output pipe (206), the hydrogen output pipe (205) and the oxygen output pipe (206) are connected with the hydrogen collection output pipe (4) and the oxygen collection gas outlet pipe (6) respectively through the connecting channel (5).

2. The modular rectangular electrolytic hydrogen generation plant of claim 1, wherein, The combination of the single module electrolytic device (2) can be single combination or multiple combinations, and the multiple combinations can adopt a horizontal straight arrangement mode.

3. The modular rectangular electrolytic hydrogen generation plant of claim 1, wherein, The rectangular electrolytic cell (203) is a zero polar distance electrolytic cell.

4. The modular rectangular electrolytic hydrogen generation plant of claim 1, wherein, The outer side of the polar plate flange (1) is provided with a threaded hole, the negative fixed bolt (8) is arranged at the threaded hole, and the inner end of the negative fixed bolt (8) is tightly arranged at the outer side of the single module electrolytic device (2).

5. The modular rectangular electrolytic hydrogen generation plant of claim 1, wherein, The polar plate flange (1) is provided with a through hole corresponding to the fixing hole (201) of the single module electrolytic device (2), and both ends of the polar plate clamping bolt (7) are arranged to pass through the through hole.

6. The modular rectangular electrolytic hydrogen generation plant of claim 1, wherein, The polar plate flange (1), the anode clamping bolt (3), the polar plate clamping bolt (7) and the negative fixed bolt (8) are made of copper.

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