Electrolytic tank clamping jig and electrolytic tank testing device

Abstract

The utility model relates to the technical field of electrolytic performance testing, and particularly discloses an electrolytic bath clamping jig and an electrolytic bath testing device, the electrolytic bath clamping jig is used for tightly pressing an electrolytic bath, the electrolytic bath clamping jig comprises a supporting seat and a driving assembly, the supporting seat is configured to be provided with the electrolytic bath, and a first pressing plate and a second pressing plate of the electrolytic bath are arranged in a spaced mode in the first direction; the driving assembly comprises a first driving piece and a second driving piece which are arranged on the supporting base, and the first driving piece and the second driving piece drive the first pressing plate and the second pressing plate to slide relative to the supporting base correspondingly so that the first pressing plate and the second pressing plate can get close to each other or get away from each other. The clamping jig for the electrolytic cell has the characteristics of simplicity in operation and reliability in clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic performance test technical field especially relates to electrolytic cell clamping fixture and electrolytic cell testing arrangement. BACKGROUND

[0002] With the rapid development of large-scale renewable energy hydrogen production, alkaline water electrolysis hydrogen production occupies a large proportion in large-scale renewable energy hydrogen production application due to its mature technology and low equipment cost.

[0003] The energy consumption cost of alkaline water electrolysis accounts for more than 90% of the equipment operation cost. To reduce the operating cost of electrolytic hydrogen production, it is necessary to reduce the hydrogen production power consumption from the equipment level. The electrolytic cell is the core equipment of the water electrolysis hydrogen production system, and the direct current power consumption of the electrolytic cell is the main direction to reduce the hydrogen production energy consumption. The electrolytic cell is composed of an electrode plate, an electrode, a diaphragm, etc. The electrolytic water reaction occurs on the surface of the electrode, and the catalytic activity of the electrode directly affects the electrolytic direct current energy consumption; the diaphragm separates the hydrogen and oxygen of the cathode and anode in the electrolytic cell, and in the alkaline electrolysis reaction process, the hydroxyl ion needs to pass through the diaphragm from the cathode to the anode side to participate in the anode reaction, and the ion penetration resistance of different diaphragms is also different.

[0004] In the selection of electrolytic cell electrodes and diaphragm testing, the conventional method is to first conduct a small test in a normal pressure small area test fixture, and then conduct a pilot test in an industrial electrolytic cell. In order to make the small test data closer to the target working condition data, multiple bolts are used to fasten the electrolytic cell. However, the electrolytic cell installation requires cold tightening, hot tightening and multiple fastenings, which is complex to operate.

[0005] Therefore, there is an urgent need for an electrolytic cell clamping fixture to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at: provide electrolytic cell clamping fixture and electrolytic cell testing arrangement, to solve the problem that when the electrolytic cell is fastened by multiple bolts in the related art, the electrolytic cell installation requires cold tightening, hot tightening and multiple fastenings, and the operation is complex.

[0007] On the one hand, the utility model provides electrolytic cell clamping fixture, including:

[0008] The support seat is configured to set the electrolytic cell, and the first pressing plate and the second pressing plate of the electrolytic cell are spaced apart along the first direction;

[0009] The driving assembly includes a first driving member and a second driving member arranged on the support seat, and the first driving member and the second driving member drive the first pressing plate and the second pressing plate to slide relative to the support seat respectively, so that the first pressing plate and the second pressing plate approach or move away from each other.

[0010] As the preferred technical scheme of the electrolytic cell clamping jig, the support base is provided with a sliding groove extending along the first direction, and the first pressing plate and the second pressing plate are slidingly arranged in the sliding groove along the first direction.

[0011] As the preferred technical scheme of the electrolytic cell clamping jig, the support base comprises a support plate and a guide plate, the guide plate is detachably connected with the support plate, the sliding groove is arranged on the guide plate, and the driving assembly is arranged on the support plate.

[0012] As the preferred technical scheme of the electrolytic cell clamping jig, the support base is provided with a sliding rail extending along the first direction, and the first pressing plate and the second pressing plate are both provided with a sliding groove slidingly matched with the sliding rail.

[0013] As the preferred technical scheme of the electrolytic cell clamping jig, the first driving member comprises a first cylinder and a first support, the first support is arranged on the support base, the first support has two states of relative fixation and relative sliding along the first direction relative to the support base, the fixed end of the first cylinder is connected with the first support, and the telescopic end of the first cylinder is connected with the first pressing plate.

[0014] The second driving member comprises a second cylinder and a second support, the second support is arranged on the support base, the second support has two states of relative fixation and relative sliding along the first direction relative to the support base, the fixed end of the second cylinder is connected with the second support, and the telescopic end of the second cylinder is connected with the second pressing plate.

[0015] As the preferred technical scheme of the electrolytic cell clamping jig, the first cylinder is provided with at least two first cylinders arranged at intervals along a second direction, the second cylinder is provided with at least two second cylinders arranged at intervals along the second direction, and the first direction and the second direction are perpendicular.

[0016] As the preferred technical scheme of the electrolytic cell clamping jig, the first driving member and the second driving member are arranged on two sides of the electrolytic cell along the first direction, respectively.

[0017] In another aspect, the utility model provides electrolytic cell testing device, including liquid tank, circulating pump and electrolytic cell clamping jig of any scheme above, first driving member and second driving member are respectively used to electrolytic cell first pressing plate and second pressing plate, circulating pump's liquid inlet and liquid tank's liquid outlet intercommunication, circulating pump's liquid outlet and electrolytic cell's liquid inlet intercommunication.

[0018] As a preferred technical scheme of the electrolytic cell testing device, the oxygen separator and the hydrogen separator, the first regulating valve and the second regulating valve are further included, the oxygen outlet of the electrolytic cell is communicated with the gas inlet of the oxygen separator, the gas outlet of the oxygen separator is communicated with the first regulating valve, the hydrogen outlet of the electrolytic cell is communicated with the gas inlet of the hydrogen separator, and the gas outlet of the hydrogen separator is communicated with the second regulating valve.

[0019] As a preferred technical scheme of the electrolytic cell testing device, the liquid outlet of the oxygen separator is communicated with the liquid return port of the liquid tank, and the liquid outlet of the hydrogen separator is communicated with the liquid return port of the liquid tank.

[0020] The electrolytic cell testing device has the advantages that:

[0021] The utility model discloses an electrolytic cell clamping jig and electrolytic cell testing device for pressing electrolytic cell, and the electrolytic cell clamping jig includes support seat and drive component, and the electrolytic cell includes first pressure plate and second pressure plate, and first pressure plate and second pressure plate are slid along the first direction and are arranged in support seat, and drive component includes first drive piece and second drive piece arranged in support seat, and first drive piece and second drive piece drive first pressure plate and second pressure plate to slide relative to support seat respectively to make first pressure plate and second pressure plate close to each other or away from each other. When the electrolytic cell testing device tests electrolytic cell, in order to make the working condition of electrolytic cell close to actual working condition, then needs to exert preset pressing force to electrolytic cell, therefore, first drive piece and second drive piece drive first pressure plate and second pressure plate to close to each other respectively to make first pressure plate and second pressure plate exert preset pressing force to cathode electrode, anode electrode, diaphragm and sealing gasket of electrolytic cell, and then can test electrolytic cell. The preset pressing force that electrolytic cell clamping jig exerts to electrolytic cell is constant, according to thermal expansion and cold shrink in electrolytic cell experiment process, first drive piece and second drive piece adjust the position of first pressure plate and second pressure plate in real time to guarantee that the preset pressing force exerted on electrolytic cell is constant, therefore, electrolytic cell clamping jig has the characteristics of simple operation and reliable clamping. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of electrolytic cell clamping jig in the utility model embodiment;

[0023] Figure 2 It is the connection schematic diagram of electrolytic cell testing device in the utility model embodiment.

[0024] In the drawing:

[0025] X, first direction;

[0026] 100, electrolytic cell;121, first pressure plate;122, second pressure plate;

[0027] 11, support seat; 111, sliding groove; 112, support plate; 113, guide plate;

[0028] 123, guide pin; 124, guide cylinder;

[0029] 131, first driving member; 1311, first cylinder; 1312, first support; 132, second driving member; 1321, second cylinder; 1322, second support;

[0030] 2, liquid tank; 3, circulating pump; 4, oxygen separator; 5, hydrogen separator; 6, first regulating valve; 7, second regulating valve. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "above" and "above" of the first feature relative to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature relative to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0035] The electrolytic cell 100 usually includes two first pressing plates 121 and second pressing plates 122 and cathode electrodes, anode electrodes, diaphragms and sealing gaskets arranged between the first pressing plates 121 and the second pressing plates 122, and the cathode electrodes, anode electrodes, diaphragms, sealing gaskets and other structures between the first pressing plates 121 and the second pressing plates 122 are clamped by the first pressing plates 121 and the second pressing plates 122 to achieve the installation of the electrolytic cell 100. For the clamping function of the first pressing plates 121 and the second pressing plates 122, usually a plurality of bolts are used to fasten the electrolytic cell 100. However, the installation of the electrolytic cell 100 requires cold tightening, hot tightening and multiple fastening, which is complex to operate.

[0036] To realize the convenience of operation of the electrolytic cell test, as shown in Figure 1 The present embodiment provides an electrolytic cell clamping jig for pressing the electrolytic cell 100, which includes a support seat 11 and a driving assembly, the first pressing plates 121 and the second pressing plates 122 of the electrolytic cell 100 are slidingly arranged in the support seat 11 along a first direction X; the driving assembly includes a first driving member 131 and a second driving member 132 arranged in the support seat 11, the first driving member 131 and the second driving member 132 respectively drive the first pressing plates 121 and the second pressing plates 122 to slide relative to the support seat 11, so that the first pressing plates 121 and the second pressing plates 122 are close to each other or away from each other. When the electrolytic cell test device tests the electrolytic cell 100, in order to make the working condition of the electrolytic cell 100 close to the actual working condition, it is necessary to apply a preset pressing force to the electrolytic cell 100, therefore, the first driving member 131 and the second driving member 132 drive the first pressing plates 121 and the second pressing plates 122 to approach each other, so that the first pressing plates 121 and the second pressing plates 122 apply a preset pressing force to the cathode electrodes, anode electrodes, diaphragms, sealing gaskets and other structures in the electrolytic cell 100, and then the electrolytic cell 100 can be tested. The preset pressing force applied to the electrolytic cell 100 by the electrolytic cell clamping jig is constant, according to the thermal expansion and cold contraction in the electrolytic cell experiment process, the first driving member 131 and the second driving member 132 adjust the positions of the first pressing plates 121 and the second pressing plates 122 in real time, so as to ensure that the preset pressing force applied to the electrolytic cell 100 is constant, therefore, the electrolytic cell clamping jig has the characteristics of simple operation and reliable clamping.

[0037] Specifically, the first driving member 131 and the second driving member 132 are arranged to drive the first pressing plate 121 and the second pressing plate 122 simultaneously, so that the clamping efficiency of the first pressing plate 121 and the second pressing plate 122 is improved. In addition, when one of the first driving member 131 and the second driving member 132 fails, the electrolytic cell clamping jig can still work normally, thereby achieving the effect of redundant backup.

[0038] Optionally, the support base 11 is provided with a sliding groove 111 extending along the first direction X, and the first pressing plate 121 and the second pressing plate 122 are arranged in the sliding groove 111. In other embodiments, the support base 11 is provided with a sliding rail extending along the first direction X, and the first pressing plate 121 and the second pressing plate 122 are provided with a sliding groove that is in sliding cooperation with the sliding rail. In the present embodiment, the arrangement plays a guiding role for the first pressing plate 121 and the second pressing plate 122.

[0039] Optionally, the support base 11 includes a support plate 112 and a guide plate 113, the guide plate 113 is detachably connected with the support plate 112, the sliding groove 111 is arranged on the guide plate 113, and the driving assembly is arranged on the support plate 112. In the present embodiment, the guide plate 113 is detachably connected with the support plate 112, by replacing the guide plate 113 of different sizes, the electrolytic cell 100 of different sizes can be adapted, and the electrolytic cell 100 of different sizes can be clamped.

[0040] Optionally, the first driving member 131 is arranged on the side of the first pressing plate 121 away from the second pressing plate 122, and the second driving member 132 is arranged on the side of the second pressing plate 122 away from the first pressing plate 121. In the present embodiment, the arrangement is conducive to the reasonable distribution of the positions of the first driving member 131 and the second driving member 132. Compared with the arrangement that the first driving member 131 and the second driving member 132 are arranged on one side of the electrolytic cell 100, the arrangement is convenient for the maintenance of the first driving member 131 and the second driving member 132 in the later period. The driving directions of the first driving member 131 and the second driving member 132 are both arranged along the first direction X.

[0041] Optionally, the first driving member 131 comprises a first cylinder 1311 and a first support 1312, the first support 1312 is arranged on the support base 11, the first support 1312 has two states of relative fixation and relative sliding along the first direction X relative to the support base 11, the fixed end of the first cylinder 1311 is arranged on the first support 1312, and the telescopic end of the first cylinder 1311 is arranged on the first pressing plate 121; the second driving member 132 comprises a second cylinder 1321 and a second support 1322, the second support 1322 is arranged on the support base 11, the second support 1322 has two states of relative fixation and relative sliding along the first direction X relative to the support base 11, the fixed end of the second cylinder 1321 is arranged on the second support 1322, and the telescopic end of the second cylinder 1321 is arranged on the second pressing plate 122. In the embodiment, by adjusting the positions of the first support 1312 and the second support 1322 relative to the support base 11, the minimum distance between the first cylinder 1311 and the second cylinder 1321 can be adjusted, and thus electrolytic cells 100 of different sizes can be clamped. In other embodiments, the first driving member 131 can be one of a gear and rack structure, a screw nut structure, a hydraulic cylinder and a straight motor. The second driving member 132 can also be one of a gear and rack structure, a screw nut structure, a hydraulic cylinder and a straight motor.

[0042] Optionally, the first cylinder 1311 is provided with at least two first cylinders 1311, and the at least two first cylinders 1311 are arranged in a spaced manner along the second direction; the second cylinder 1321 is provided with at least two second cylinders 1321, and the at least two second cylinders 1321 are arranged in a spaced manner along the second direction. In the embodiment, the at least two first cylinders 1311 are arranged in a spaced manner along the second direction, which makes the pressure of the first pressing plate 121 on the electrolytic cell 100 more uniform; the at least two second cylinders 1321 are arranged in a spaced manner along the second direction, which makes the pressure of the second pressing plate 122 on the electrolytic cell 100 more uniform. Specifically, the first direction X and the second direction are perpendicular to each other.

[0043] Optionally, the electrolytic cell clamping jig further comprises a guide assembly, the guide assembly comprises a guide pin 123, the guide pin 123 is fixedly arranged on one of the first pressing plate 121 and the second pressing plate 122, the axis of the guide pin 123 is arranged along the first direction X, the other one of the first pressing plate 121 and the second pressing plate 122 is provided with a guide hole along the first direction X, and the guide pin 123 is arranged in the guide hole. In the embodiment, the guide pin 123 is inserted into the guide hole, which can limit the first pressing plate 121 and the second pressing plate 122 along a plane perpendicular to the first direction X, and thus the first pressing plate 121 and the second pressing plate 122 are relatively fixed along the plane perpendicular to the first direction X.

[0044] Optionally, the first pressing plate 121 is fixedly provided with a guide pin 123, the second pressing plate 122 is provided with a guide hole, and the guide assembly further comprises a guide cylinder 124, which is arranged on the side of the second pressing plate 122 away from the first pressing plate 121 and coaxially arranged with the guide hole, and the guide pin 123 is arranged in the guide cylinder 124; or, the second pressing plate 122 is fixedly provided with a guide pin 123, the first pressing plate 121 is provided with a guide hole, and the guide assembly further comprises a guide cylinder 124, which is arranged on the side of the first pressing plate 121 away from the second pressing plate 122 and coaxially arranged with the guide hole, and the guide pin 123 is arranged in the guide cylinder 124. In this embodiment, the arrangement further improves the stability of the relative fixation of the first pressing plate 121 and the second pressing plate 122 along the plane perpendicular to the first direction X, so that the first pressing plate 121 and the second pressing plate 122 can only slide along the first direction X.

[0045] As shown in Figure 2 The embodiment also provides an electrolytic cell testing device, which comprises a liquid tank 2, a circulating pump 3 and the electrolytic cell clamping jig in the above-mentioned scheme, the first driving member 131 and the second driving member 132 act on the first pressing plate 121 and the second pressing plate 122 of the electrolytic cell 100 respectively, the liquid inlet of the circulating pump 3 is in communication with the liquid outlet of the liquid tank 2, and the liquid outlet of the circulating pump 3 is in communication with the liquid inlet of the electrolytic cell 100. In this embodiment, the liquid tank 2 is provided with electrolytic water, the circulating pump 3 pumps the alkaline electrolytic water into the electrolytic cell 100, and at the same time, the cathode electrode and the anode electrode in the electrolytic cell 100 are electrified, so that oxygen and hydrogen can be emitted from the oxygen outlet and the hydrogen outlet of the electrolytic cell 100 respectively, and in this process, the performance of the cathode electrode, the anode electrode and the diaphragm can be explored.

[0046] Optionally, the electrolytic cell testing device further comprises an oxygen separator 4 and a hydrogen separator 5, a first regulating valve 6 and a second regulating valve 7, the oxygen outlet of the electrolytic cell 100 is in communication with the gas inlet of the oxygen separator 4, the gas outlet of the oxygen separator 4 is in communication with the first regulating valve 6, the hydrogen outlet of the electrolytic cell 100 is in communication with the gas inlet of the hydrogen separator 5, and the gas outlet of the hydrogen separator 5 is in communication with the second regulating valve 7. In this embodiment, the oxygen separator 4 can separate the electrolytic water mixed in the oxygen, so that pure oxygen can be collected. The hydrogen separator 5 can separate the electrolytic water mixed in the hydrogen, so that pure hydrogen can be collected. By studying the generation amount of pure hydrogen and the generation amount of pure oxygen, the performance of the electrolytic cell 100 can be determined.

[0047] Optionally, the gas outlet of the first regulating valve 6 is used for being in communication with an oxygen collection tank, and the gas outlet of the second regulating valve 7 is used for being in communication with a hydrogen collection tank. By determining the gas collection amount in the oxygen collection tank and the hydrogen collection tank, the performance of the positive plate, the negative plate and the diaphragm can be explored.

[0048] Optionally, the liquid outlet of the oxygen separator 4 is communicated with the liquid return port of the liquid tank 2, and the liquid outlet of the hydrogen separator 5 is communicated with the liquid return port of the liquid tank 2. In the embodiment, the above-mentioned arrangement can make the electrolytic water separated by the oxygen separator 4 and the hydrogen separator 5 flow back to the liquid tank 2, thereby avoiding the waste of the electrolytic water.

[0049] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An electrolytic cell clamping jig, characterized by, The application relates to an electrolytic cell support seat. The support seat (11) is provided with a sliding groove (111) extending along the first direction (X), and the first pressing plate (121) and the second pressing plate (122) are slidably arranged in the sliding groove (111) along the first direction (X). The support seat (11) comprises a support plate (112) and a guide plate (113), the guide plate (113) is detachably connected with the support plate (112), the sliding groove (111) is arranged on the guide plate (113), and the driving assembly is arranged on the support plate (112).

2. The electrolytic cell clamping fixture of claim 1, wherein, The support seat (11) is provided with a sliding rail extending along the first direction (X), and the first pressing plate (121) and the second pressing plate (122) are each provided with a sliding groove matched with the sliding rail.

3. The electrolytic cell clamping fixture of claim 2, wherein, The first driving member (131) comprises a first cylinder (1311) and a first support (1312), the first support (1312) is arranged on the support seat (11), the first support (1312) has two states of relative fixation and relative sliding along the first direction (X) relative to the support seat (11), the fixed end of the first cylinder (1311) is connected with the first support (1312), and the telescopic end of the first cylinder (1311) is connected with the first pressing plate (121).

4. The electrolytic cell clamping fixture of claim 1, wherein, The second driving member (132) comprises a second cylinder (1321) and a second support (1322), the second support (1322) is arranged on the support seat (11), the second support (1322) has two states of relative fixation and relative sliding along the first direction (X) relative to the support seat (11), the fixed end of the second cylinder (1321) is connected with the second support (1322), and the telescopic end of the second cylinder (1321) is connected with the second pressing plate (122).

5. The electrolytic cell clamping fixture of claim 1, wherein, The first cylinder (1311) is provided with at least two first cylinders (1311) arranged along a second direction, and the second cylinder (1321) is provided with at least two second cylinders (1321) arranged along the second direction, and the first direction (X) and the second direction are perpendicular. The first driving member (131) and the second driving member (132) are respectively arranged on two sides of the electrolytic cell (100) along the first direction (X).

6. The electrolytic cell clamping fixture of claim 5, wherein, ​ 7. The electrolytic cell clamping fixture of claim 1, wherein, ​ 8. An electrolytic cell testing apparatus characterized by, The electrolytic cell testing device further comprises an oxygen separator (4) and a hydrogen separator (5), a first regulating valve (6) and a second regulating valve (7), the oxygen outlet of the electrolytic cell (100) is communicated with the gas inlet of the oxygen separator (4), the gas outlet of the oxygen separator (4) is communicated with the first regulating valve (6), the hydrogen outlet of the electrolytic cell (100) is communicated with the gas inlet of the hydrogen separator (5), and the gas outlet of the hydrogen separator (5) is communicated with the second regulating valve (7).

9. The electrolytic cell testing apparatus of claim 8, wherein, The liquid outlet of the oxygen separator (4) is communicated with the liquid return port of the liquid tank (2), and the liquid outlet of the hydrogen separator (5) is communicated with the liquid return port of the liquid tank (2).

10. The electrolyzer test device of claim 9, wherein, The liquid outlet of the oxygen separator (4) is communicated with the liquid return port of the liquid tank (2), and the liquid outlet of the hydrogen separator (5) is communicated with the liquid return port of the liquid tank (2).

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