CN211871384U - Electrolytic separation tank for nitrogen generator - Google Patents

Abstract

The utility model discloses an electrolytic separation pond for nitrogen generator, including can dismantle the anode plate and the symmetry of connection cover in the negative plate of anode plate both sides, anode plate and every all press from both sides the seal ring that establishes hollow structure between the negative plate, and seal ring and anode plate, negative plate surround and form accommodation space, are provided with negative pole nickel silk screen, catalysis layer, asbestos diaphragm and positive pole nickel silk screen in accommodation space. The utility model has simple structure and reasonable design, can complete the purification of nitrogen in the containing space, and has high sealing degree; the arrangement of the anode nickel wire mesh and the cathode nickel wire mesh increases the adsorption area and accelerates the nitrogen production efficiency; two cathode plates are adopted for series deoxidization, so that the purity of the generated nitrogen reaches more than 99.99 percent, and the use requirement of high-end precision detection is met.

Description

Electrolytic separation tank for nitrogen generator

Technical Field

The utility model relates to an electrolytic separation pond technical field, concretely relates to electrolytic separation pond for nitrogen generator.

Background

The national intellectual property office 1995.08.23 discloses a utility model with the patent name "high-purity nitrogen generator electrolytic cell" as "CN 2205833U", and the nitrogen generator of the patent is characterized in that a pair of liquid inlet and outlet holes are arranged on a common anode metal plate, and the two end faces of the common anode metal plate are provided with grooves and holes communicated with each other. When the anode metal plate works, the electrolyte is filled in the cavity on the inner side of the common anode metal plate through the liquid inlet and outlet, and the grooves and the holes on the two end faces. The metal end plates as the double cathodes are respectively provided with a pair of air inlets and air outlets. An asbestos diaphragm and a catalyst layer are arranged between the common anode metal plate and the double-cathode metal end plate. The metal plate is used as a common anode, and the metal end plate is used as a cathode. The tightness of the electrolytic separation cell of the nitrogen generator is not enough, so that the leakage of electrolyte is easily caused, and the use requirements of gas phase precision detection and the like cannot be met.

In summary, the current electrolytic separation cells for nitrogen generators also have the following problems:

1) the sealing degree is poor, so that the leakage of the electrolyte is easily caused;

2) the adsorption area is small, and the nitrogen production efficiency is low;

3) the use requirement of high-end precision detection cannot be met only by using a single cathode plate to remove oxygen from the entering air.

Based on the situation, the utility model provides an electrolytic separation pond for nitrogen generator, can effectively solve above problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation of the prior art, in order to overcome the defects, the nitrogen purifier has simple structure and reasonable design, can finish the purification of nitrogen in the accommodating space, and has high sealing degree; the arrangement of the anode nickel wire mesh and the cathode nickel wire mesh increases the adsorption area and accelerates the nitrogen production efficiency; two cathode plates are adopted for series deoxidization, so that the purity of the generated nitrogen reaches more than 99.99 percent, and the use requirement of high-end precision detection is met.

The utility model discloses a following technical scheme realizes:

an electrolytic separation tank for a nitrogen generator comprises an anode plate and cathode plates, wherein the anode plate is detachably connected with the cathode plates, the cathode plates are symmetrically covered on two sides of the anode plate, a sealing gasket with a hollow structure is clamped between each anode plate and each cathode plate, the sealing gaskets, the anode plates and the cathode plates surround to form an accommodating space, and a cathode nickel screen, a catalyst layer, an asbestos diaphragm and an anode nickel screen are arranged in the accommodating space; the anode plate comprises a plurality of through holes which are communicated with each other and arranged on the end surface, and a liquid inlet and a liquid outlet which are arranged at the edge of the anode plate and are communicated with the through holes; the end surface of each cathode plate is provided with an air inlet and an air outlet, wherein the air outlet of one cathode plate is communicated with the air inlet of the other cathode plate; and a groove matched with the through hole is formed in the end face, close to the anode plate, of each cathode plate.

Preferably, the thickness of the sealing gasket is not less than the superposed thickness of the cathode nickel wire mesh, the catalytic layer, the asbestos membrane and the anode nickel wire mesh.

Through above-mentioned preferred technical scheme, can all set up negative pole nickel silk screen, catalytic layer, asbestos diaphragm and positive pole nickel silk screen in accommodation space, the leakproofness is high.

Preferably, the anode plate, the cathode plate and the sealing washer are all round; the diameter of the anode plate is the same as that of the sealing washer and is smaller than that of the cathode plate.

Preferably, the edges of the two cathode plates are fixedly connected by fasteners in the circumferential direction.

Through the preferable technical scheme, the anode plate can be tightly clamped between the two cathode plates better, and the leakage of electrolyte is prevented.

Preferably, the air inlet and the air outlet are respectively communicated with the groove.

Through above-mentioned preferred technical scheme, the air can be followed the air inlet and flowed in the negative plate to fill to whole negative plate rapidly through the recess, flow out through the gas outlet again after the deoxidization.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model has simple structure and reasonable design, can complete the purification of nitrogen in the containing space, and has high sealing degree; the arrangement of the anode nickel wire mesh and the cathode nickel wire mesh increases the adsorption area and accelerates the nitrogen production efficiency; two cathode plates are adopted for series deoxidization, so that the purity of the generated nitrogen reaches more than 99.99 percent, and the use requirement of high-end precision detection is met.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention;

fig. 2 is a schematic structural view of the anode plate of the present invention;

fig. 3 is a schematic structural view of the inner side of the cathode plate of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The material of seal ring is corrosion-resistant insulating material.

An electrolytic separation cell for a nitrogen generator according to the present invention will be described in detail with reference to fig. 1.

Example 1:

referring to fig. 1 to 3, an electrolytic separation cell for a nitrogen generator includes an anode plate 1 detachably connected to each other and cathode plates 2 symmetrically covering both sides of the anode plate 1, a sealing gasket 3 having a hollow structure is interposed between the anode plate 1 and each of the cathode plates 2, the sealing gasket 3, the anode plate 1 and the cathode plate 2 form a receiving space in a surrounding manner, and a cathode nickel mesh 31, a catalyst layer 32, an asbestos diaphragm 33 and an anode nickel mesh 34 are disposed in the receiving space; the anode plate 1 comprises a plurality of through holes 11 which are communicated with each other and are arranged on the end surface, and a liquid inlet 12 and a liquid outlet 13 which are arranged at the edge of the anode plate 1 and are communicated with the through holes 11; the end surface of each cathode plate 2 is provided with an air inlet 21 and an air outlet 22, wherein the air outlet 22 of one cathode plate 2 is communicated with the air inlet 21 of the other cathode plate 2; and a groove 23 matched with the through hole 11 is formed on the end surface of each cathode plate 2 close to the anode plate 1.

Further, in another embodiment, the thickness of the sealing gasket 3 is not less than the superimposed thickness of the cathode nickel wire mesh 31, the catalytic layer 32, the asbestos membrane 33 and the anode nickel wire mesh 34.

Further, in another embodiment, the anode plate 1, the cathode plate 2 and the sealing washer 3 are all circular; the diameter of the anode plate 1 is the same as that of the sealing washer 3 and is smaller than that of the cathode plate 2.

Further, in another embodiment, the edge circumferences of the two cathode plates 2 are both correspondingly provided with the internal thread holes 24, and the fastening piece can be used by adopting a screw rod and a nut, so that the two cathode plates 2 are stably connected through the fastening piece.

Further, in another embodiment, the air inlet 21 and the air outlet 22 are respectively communicated with the groove 23. The grooves 23 are formed as two communicated annular grooves, and the coverage area is wide, so that the air can be fully contacted with the electrolyte.

The utility model discloses a theory of operation of an embodiment as follows:

the utility model discloses an electrolysis separation tank is external when using has the liquid storage pot, and the potassium hydroxide electrolyte of splendid attire in the liquid storage pot loops through in inlet 12 gets into the electrolysis separation tank to in flowing into the liquid storage pot again from liquid outlet 13, the circulation is reciprocal, in order to detach the oxygen of absorption in electrolyte.

Will the utility model discloses an electrolytic separation pond switch-on starting switch, the air gets into the electrolytic separation pond through one of them negative plate 2's air inlet 21, adsorb near the anode plate 1 through electrochemical reaction and physical adsorption method the oxygen molecule in the air, oxygen molecule gathers near being close to anode plate 1 and gathers and converge into electrolyte through liquid outlet 13 output, finally get into the liquid storage pot and release in the atmosphere, residual gas then is being close to near this negative plate 2 gathering and continue the reaction in the electrolytic separation pond is got into once more through another negative plate 2's air inlet 21 to the gas outlet 22 through gas outlet 22, nitrogen gas after the deoxidization exports through gas outlet 22 on the negative plate 2, it is reserve.

According to the description of the invention and the attached drawings, a person skilled in the art can easily make or use the electrolytic separation cell for a nitrogen generator of the invention and can produce the positive effects described in the invention.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims (5)

1. An electrolytic separation tank for a nitrogen generator comprises an anode plate (1) and cathode plates (2) which are detachably connected and symmetrically cover two sides of the anode plate (1), and is characterized in that a sealing gasket (3) with a hollow structure is clamped between the anode plate (1) and each cathode plate (2), the sealing gasket (3), the anode plate (1) and the cathode plate (2) are encircled to form an accommodating space, and a cathode nickel wire mesh (31), a catalytic layer (32), an asbestos diaphragm (33) and an anode nickel wire mesh (34) are arranged in the accommodating space; the anode plate (1) comprises a plurality of through holes (11) which are communicated with each other and are arranged on the end surface, and a liquid inlet (12) and a liquid outlet (13) which are arranged at the edge of the anode plate (1) and are communicated with the through holes (11); an air inlet (21) and an air outlet (22) are formed in the end face of each cathode plate (2), wherein the air outlet (22) of one cathode plate (2) is communicated with the air inlet (21) of the other cathode plate (2); and a groove (23) matched with the through hole (11) is formed in the end face, close to the anode plate (1), of each cathode plate (2).

2. An electrolytic separation cell for a nitrogen generator as claimed in claim 1, wherein: the thickness of the sealing washer (3) is not less than the superposed thickness of the cathode nickel wire mesh (31), the catalytic layer (32), the asbestos diaphragm (33) and the anode nickel wire mesh (34).

3. An electrolytic separation cell for a nitrogen generator as claimed in claim 1, wherein: the anode plate (1), the cathode plate (2) and the sealing washer (3) are all circular; the diameter of the anode plate (1) is the same as that of the sealing washer (3) and is smaller than that of the cathode plate (2).

4. An electrolytic separation cell for a nitrogen generator as claimed in claim 1, wherein: the edges of the two cathode plates (2) are all firmly connected by fasteners in the circumferential direction.

5. An electrolytic separation cell for a nitrogen generator as claimed in claim 1, wherein: the air inlet (21) and the air outlet (22) are respectively communicated with the groove (23).

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