CN117766818A - Pile gas leakage detection equipment - Google Patents

Abstract

The embodiment of the invention provides pile air leakage detection equipment, which comprises a frame assembly and blade assemblies, wherein the frame assembly is provided with an accommodating space for accommodating a pile, the blade assemblies are arranged on the frame assembly and can rotate around the axis of the blade assemblies relative to the frame assembly under the pushing of gas, the blade assemblies are multiple, and the blade assemblies are arranged opposite to at least one end face of the pile. According to the pile air leakage detection device, the pile is accommodated through the frame assembly with the accommodating space, and the plurality of blade assemblies are arranged on the frame assembly, when the pile is in air leakage, the leaked air can blow the blade assemblies at the corresponding positions to rotate, so that whether the pile is in air leakage or not is detected, the air leakage position can be obtained, and the pile air leakage detection device is simple in structure and convenient to detect and operate.

Description

Pile gas leakage detection equipment

Technical Field

The invention relates to the field of battery detection, in particular to pile air leakage detection equipment.

Background

The electric pile of the fuel cell is formed by stacking a plurality of single cells, each single cell comprises an anode plate, a membrane electrode and a cathode plate which are sequentially stacked, the anode plate is provided with a flow channel for hydrogen to flow, the cathode plate is provided with a flow channel for air or oxygen to flow, and the membrane electrode and the electrode plates are bonded through sealing rubber strips or sealed through rubber gaskets. During operation of the fuel cell, gas leakage in the unit cell may cause a safety hazard, and thus the gas tightness of the stack needs to be detected during production of the fuel cell. In the related art, a pile is placed in a solution, then a gas medium is supplied to the pile, whether the pile leaks gas or not is judged through bubbles appearing on the surface of the pile or colors generated by chemical reaction of the gas medium and the solution, but the detection mode adopts a complex equipment structure and a complex detection process.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a pile air leakage detection device, which is used for accommodating a pile through a frame assembly with an accommodating space, and a plurality of blade assemblies are arranged on the frame assembly, when the pile is in air leakage, leaked air can blow the blade assemblies at corresponding positions to rotate, so that whether the pile is in air leakage or not is detected, the air leakage position can be obtained, and the pile air leakage detection device is simple in structure and convenient to detect and operate.

The pile air leakage detection device of the embodiment of the invention comprises:

a frame assembly having an accommodation space for accommodating the stack;

the blade assemblies are arranged on the frame assemblies and can rotate around the axes of the blade assemblies relative to the frame assemblies under the pushing of gas, the blade assemblies are multiple, and the blade assemblies and at least one end face of the galvanic pile are arranged oppositely.

According to the pile air leakage detection device, the pile is accommodated through the frame assembly with the accommodating space, the plurality of blade assemblies are arranged on the frame assembly and are opposite to at least one end face of the pile, when air leakage occurs on the end face of the pile, leaked air can blow the blade assemblies corresponding to the air leakage positions in the plurality of blade assemblies which are opposite to each other to rotate, so that whether the pile leaks air or not can be detected, the air leakage positions can be obtained, and the pile air leakage detection device is simple in structure and convenient to detect and operate.

In some embodiments, the frame assembly is disposed around a stacking direction of the stack.

In some embodiments, the frame assembly has a plurality of frame faces, and the plurality of frame faces are sequentially arranged around the stacking direction of the electric pile and form the accommodating space around the frame faces, and each frame face is provided with a plurality of blade assemblies.

In some embodiments, the frame assembly comprises:

the supports are arranged around the stacking direction of the electric pile, at least two supports are arranged at intervals along the stacking direction of the electric pile;

the installation shaft extends along the stacking direction of the electric pile and is connected between two adjacent brackets, the installation shaft is multiple, multiple installation shafts are distributed at intervals around the stacking direction of the electric pile, each installation shaft is sleeved with multiple blade assemblies, and the multiple blade assemblies on the same installation shaft are sequentially distributed along the extending direction of the installation shaft and can axially rotate around the installation shaft.

In some embodiments, the blade assembly includes a hub sleeved on the corresponding mounting shaft and a blade body provided with the blade body extending in a radial direction of the hub.

In some embodiments, the radial two ends of the shaft sleeve are respectively provided with the blade body.

In some embodiments, the blade body is configured to be disposed parallel to the oppositely disposed end face of the stack, and the distance between the blade body and the oppositely disposed end face of the stack is 5mm-10mm.

In some embodiments, the outer peripheral surface of the shaft sleeve is provided with a slot, the slot extends along the axial direction of the shaft sleeve and forms an inserting port on at least one axial end surface of the shaft sleeve, and one end of the blade body is inserted into the slot.

In some embodiments, the side wall surface of the slot is provided with a positioning groove, the positioning groove extends along the axial direction of the shaft sleeve, an opening is formed on the end surface of the shaft sleeve, provided with the plug-in port, the blade body is provided with a positioning boss, and the positioning boss is matched in the positioning groove.

In some embodiments, the support includes a plurality of connection beams, a plurality of connection beams are connected in sequence around the stacking direction of the electric pile, the connection beams are telescopic along the length direction of the connection beams, and the connection beams are provided with shaft holes for inserting the mounting shafts.

Drawings

Fig. 1 is a schematic structural view of a stack gas leakage detecting apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing an installation of a stack gas leakage detecting apparatus according to an embodiment of the present invention;

FIG. 3 is a second schematic diagram of an installation of a stack gas leakage detection apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view of a frame assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of a blade assembly in accordance with an embodiment of the present invention;

fig. 6 is an enlarged schematic view of a part of the structure of the blade assembly of fig. 5.

Reference numerals:

1. a frame assembly; 11. a bracket; 111. a connecting beam; 112. a shaft hole; 12. a mounting shaft; 2. a galvanic pile; 3. a blade assembly; 31. a shaft sleeve; 311. a slot; 312. a positioning groove; 32. a blade body; 321. positioning the boss; 4. an air inlet and outlet joint.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

A stack gas leakage detection apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the stack gas leakage detection apparatus of the embodiment of the present invention includes a frame assembly 1 and a blade assembly 3.

The frame assembly 1 has an accommodation space for accommodating the stack 2. The blade assemblies 3 are arranged on the frame assembly 1 and can rotate around the axis of the blade assemblies 3 relative to the frame assembly 1 under the pushing of gas, the blade assemblies 3 are a plurality of, and the blade assemblies 3 are arranged opposite to at least one end face of the electric pile 2.

As shown in fig. 1, the stack 2 includes a plurality of unit cells stacked in sequence in the up-down direction, and preferably, the stack 2 is a fuel cell stack.

The frame assembly 1 is at least open at the top, and the interior of the frame assembly 1 has an accommodation space, and the stack 2 is placed in the accommodation space of the frame assembly 1. The frame assembly 1 may be box-shaped with an open top, or may be cylindrical around the stacking direction of the galvanic pile 2, preferably, the frame assembly 1 is cylindrical around the vertical direction, and the top and the bottom of the frame assembly 1 are both open, so that the galvanic pile 2 is taken and put from the accommodating space, and whether the connection position of the membrane electrode and the polar plate in the galvanic pile 2 leaks air or not can be ensured, and when the detection is performed, the frame assembly 1 and the galvanic pile 2 are simultaneously placed on the platform, so that the frame assembly 1 surrounds the periphery of the galvanic pile 2.

The frame assembly 1 is provided with a plurality of blade assemblies 3, the plurality of blade assemblies 3 are disposed opposite to at least one end face of the electric pile 2, preferably, the side wall faces of the electric pile 2 in the four directions of front, rear, left and right are disposed opposite to the corresponding plurality of blade assemblies 3 respectively, in other words, the front, rear, left and right of the electric pile 2 are respectively provided with the plurality of blade assemblies 3, preferably, the arrangement area of the plurality of blade assemblies 3 in any direction covers the side wall face of the corresponding side of the electric pile 2.

When the side wall surface of the electric pile 2 leaks air, the leaked air can push at least part of blade assemblies 3 in the plurality of blade assemblies 3 which are arranged opposite to the side wall surface to rotate, so that whether the electric pile 2 leaks air or not is judged through whether the blade assemblies 3 rotate around the axis of the blade assemblies 3, and the air leakage position of the electric pile 2 is obtained through the position of the blade assemblies 3 which rotate.

According to the pile air leakage detection device, the pile is accommodated through the frame assembly with the accommodating space, the plurality of blade assemblies are arranged on the frame assembly and are opposite to at least one end face of the pile, when air leakage occurs on the end face of the pile, leaked air can blow the blade assemblies corresponding to the air leakage positions in the plurality of blade assemblies which are opposite to each other to rotate, so that whether the pile leaks air or not can be detected, the air leakage positions can be obtained, the structure is simple, the detection operation is convenient, and short detection time is consumed.

It should be noted that, the pile air leakage detection device of the embodiment of the invention is applicable to piles with partially opened membrane electrodes and completely sealed membrane electrodes.

It will be appreciated that the frame assembly is not limited to a cylindrical shape disposed around the stacking direction of the stack, and in other embodiments, the frame assembly includes a housing and a cover, each of which is provided with a blade assembly to enable detection of the upper and lower end surfaces of the stack.

In some embodiments, the frame assembly 1 has a plurality of frame faces sequentially arranged around the stacking direction of the stacks 2 and surrounding to form a receiving space, each frame face being provided with a plurality of blade assemblies 3.

As shown in fig. 1, the frame assembly 1 is in a rectangular cylinder shape with four frame surfaces, and the four frame surfaces are sequentially connected around the up-down direction, so that the four frame surfaces encircle to form a rectangular accommodating space, and each frame surface is provided with a plurality of blade assemblies 3. The rectangular electric pile 2 is matched in the accommodating space, so that each side wall surface of the electric pile 2 is provided with one frame surface which is arranged oppositely, and the arrangement area of the plurality of blade assemblies 3 on any frame surface can cover the corresponding side wall surface of the electric pile 2, so that the air leakage detection can be carried out on all the side wall surfaces of the electric pile 2, in other words, the air leakage detection on the electric pile 2 can be finished at one time.

It will be appreciated that the frame assembly is not limited to having a plurality of frame faces, and in other embodiments, the frame assembly is cylindrical with only one cylindrical frame face surrounding in an up-down direction.

It will be appreciated that the frame assembly is not limited to rectangular cylinders, and in other embodiments, the frame assembly is polygonal cylinders that match the cross-sectional shape of the stack, and the frame faces of the frame assembly are disposed in one-to-one correspondence with the side wall faces of the stack.

In some embodiments, the frame assembly 1 includes a bracket 11 and a mounting shaft 12. The supports 11 are disposed around the stacking direction of the stacks 2, and the supports 11 are at least two, and the at least two supports 11 are arranged at intervals along the stacking direction of the stacks 2. The installation shaft 12 extends along the stacking direction of the electric pile 2 and is connected between two adjacent brackets 11, the installation shaft 12 is a plurality of, a plurality of installation shafts 12 are distributed at intervals around the stacking direction of the electric pile 2, each installation shaft 12 is sleeved with a plurality of blade assemblies 3, and a plurality of blade assemblies 3 on the same installation shaft 12 are sequentially distributed along the extending direction of the installation shaft 12 and can rotate around the axial direction of the installation shaft 12.

As shown in fig. 2 and 4, the brackets 11 are rectangular surrounding the up-down direction, the number of the brackets 11 is two, and the two brackets 11 are arranged at intervals along the up-down direction, wherein the brackets 11 at the upper end are not lower than the top surface of the electric pile 2, and the brackets 11 at the lower end are not higher than the bottom surface of the electric pile 2.

The installation axle 12 extends along the upper and lower direction and connects between two supports 11, installation axle 12 is a plurality of, a plurality of installation axles 12 are arranged around upper and lower direction interval, all be connected with corresponding installation axle 12 on the support roof beam of every rectangle limit of support 11 correspondence, preferably, the support roof beam of support 11 includes the crossbeam that extends along left and right directions and the longeron that extends along the fore-and-aft direction, the extension length of longeron is shorter than the extension length of crossbeam, a plurality of installation axles 12 are connected to the crossbeam, a plurality of installation axles 12 are arranged along left and right directions interval, a installation axle 12 is connected to the longeron. It will be appreciated that the number of mounting shafts 12 respectively connected to the cross member and the side member is adjusted according to the size of the stack 2, and that the plurality of mounting shafts 12 are arranged at intervals in the front-rear direction when the side member is connected to the plurality of mounting shafts 12.

Each mounting shaft 12 is provided with a plurality of blade assemblies 3 in a penetrating manner, the blade assemblies 3 on the same mounting shaft 12 are sequentially arranged in the up-down direction, and each blade assembly 3 can rotate around the axis of the mounting shaft 12 relative to the mounting shaft 12. The blade assemblies 3 on the adjacent two mounting shafts 12 are not in contact, in other words, in the adjacent two mounting shafts 12, a gap is provided between the blade assembly 3 on one mounting shaft 12 and the blade assembly 3 on the other mounting shaft 12 at the same height position so as to avoid affecting the rotation of the blade assembly 3.

The installation axle 12 plays the effect of supporting and connecting two supports 11 to constitute frame subassembly 1 with installation axle 12 and support 11, make the structure of frame subassembly 1 comparatively simple and the dismouting of being convenient for, the dismouting operation of the electric pile gas leakage check out test set of being convenient for is convenient for the removal and the placement of electric pile gas leakage check out test set.

Meanwhile, the installation shaft 12 also plays a role in installing the blade assembly 3 and enabling the blade assembly 3 to rotate, so that the blade assembly 3 cannot be interfered by other components in a rotating range, the detection result is prevented from being influenced, the rotation condition of the blade assembly 3 can be observed from the outside of the frame assembly 1, the observation in the detection process is facilitated, and the detection result is convenient to obtain.

It will be appreciated that the frame assembly 1 is not limited to having two brackets 11, and in the embodiment shown in fig. 3, the frame assembly 1 has three brackets 11, the three brackets 11 are arranged at intervals in the up-down direction, and a plurality of mounting shafts 12 are connected between each two adjacent brackets 11 to be able to detect the stack 2 with a higher height in cooperation with each other, in other words, the number of the brackets 11 can be adjusted according to the height of the stack 2. It is of course also possible to replace the mounting shaft 12 connecting brackets 11 of different heights depending on the height of the stack 2.

In some embodiments, the blade assembly 3 comprises a hub 31 and a blade body 32, the hub 31 being arranged to fit over the corresponding mounting shaft 12, the hub 31 being provided with the blade body 32, the blade body 32 extending in a radial direction of the hub 31.

As shown in fig. 5, the blade assembly 3 includes a sleeve 31 and a blade body 32, the sleeve 31 extends in the up-down direction and is a cylinder body surrounding the up-down direction for being sleeved on the corresponding mounting shaft 12, the sleeve 31 can rotate around the axial direction of the mounting shaft 12 relative to the mounting shaft 12, the blade body 32 is provided on the outer circumferential surface of the sleeve 31, the blade body 32 extends in the radial direction of the sleeve 31 for bearing the gas leaked from the galvanic pile 2, and generates a thrust force to push the sleeve 31 to rotate around the axial direction of the mounting shaft 12, and the position of the blade body 32 changes after rotation to be able to judge whether the gas leakage exists.

Preferably, the vane bodies 32 are provided at both radial ends of the boss 31, respectively. As shown in fig. 5, the left and right ends of the shaft sleeve 31 are provided with blade bodies 32 so that the blade assembly 3 rotates, and the number of the mounting shafts 12 is reduced so as to reduce the structural complexity of the frame assembly 1.

In some embodiments, the blade body 32 is configured to be disposed parallel to the end surfaces of the oppositely disposed stacks 2, and the distance between the blade body 32 and the end surfaces of the oppositely disposed stacks 2 is between 5mm and 10mm.

As shown in fig. 1 and 5, the blade body 32 is a vertically disposed flat plate, the inner side wall surface of the blade body 32 is disposed opposite to the side wall surface corresponding to the electric pile 2, after the electric pile 2 is placed in the accommodating space and before the air supply detection is started, the inner side wall surface of the blade body 32 is disposed in parallel to the side wall surface corresponding to the electric pile 2, and the distance between the inner side wall surface of the blade body 32 and the side wall surface corresponding to the electric pile 2 is 5mm-10mm, preferably 5mm, 8mm and 10mm. So that the gas leaked from the stack 2 can act on the blade body 32 and push the blade body 32 to rotate.

Meanwhile, since the inner side wall surfaces of the blade bodies 32 are parallel to the corresponding side wall surfaces of the galvanic pile 2, the outer side wall surfaces of the plurality of blade bodies 32 on the same frame surface are located in the same plane, and after part of the blade bodies 32 rotate, the rotation of the blade bodies 32 can be visually observed from the outside of the frame assembly 1, so that the rotation of the blade bodies 32 can be conveniently observed and obtained, and whether the galvanic pile 2 leaks or not and the leakage position can be judged.

It will be appreciated that the blade body is not limited to a planar plate, and in other embodiments, the blade body has a spiral or pitch angle.

In some embodiments, the outer peripheral surface of the sleeve 31 is provided with a slot 311, the slot 311 extends along the axial direction of the sleeve 31, and forms an insertion port on at least one axial end surface of the sleeve 31, and one end of the blade body 32 is inserted into the slot 311.

As shown in fig. 5 and 6, the outer circumferential surface of the hub 31 is provided with a slot 311, and the slot 311 extends in the up-down direction and penetrates the hub 31 to form a socket on the upper and lower end surfaces of the hub 31, respectively, the socket being used for the blade body 32 to enter and exit the slot 311. Preferably, slots 311 are respectively provided at left and right ends of the sleeve 31, the left end of one blade body 32 is inserted into the slot 311 located at the right end of the sleeve 31, and the right end of the other blade body 32 is inserted into the slot 311 located at the left end of the sleeve 31, so that the blade bodies 32 are respectively provided at the left and right ends of the sleeve 31.

The blade body 32 and the shaft sleeve 31 are detachably mounted through the slot 311 with the insertion port so as to facilitate the disassembly and assembly of the blade assembly 3, thereby facilitating the replacement and maintenance of one of the blade body 32 and the shaft sleeve 31, facilitating the movement and placement of the pile air leakage detection device, and adjusting the size of the blade assembly 3 by replacing the blade body 32 with different lengths so as to be suitable for piles 2 with different sizes.

In some embodiments, the side wall surface of the slot 311 is provided with a positioning slot 312, the positioning slot 312 extends along the axial direction of the shaft sleeve 31, and an opening is formed on the end surface of the shaft sleeve 31 provided with the insertion port, and the blade body 32 is provided with a positioning boss 321, and the positioning boss 321 is matched in the positioning slot 312.

As shown in fig. 5, the front side wall surface and the rear side wall surface of the slot 311 are respectively provided with a positioning slot 312, the positioning slots 312 extend in the up-down direction and penetrate through the shaft sleeve 31, so that openings are respectively formed in the upper end surface and the lower end surface of the shaft sleeve 31, the front side wall surface and the rear side wall surface of the blade body 32 are respectively provided with a positioning boss 321, the positioning bosses 321 extend in the up-down direction and are positioned at one end of the blade body 32, which is used for being inserted into the slot 311, when one end of the blade body 32 is inserted into the corresponding slot 311, two positioning bosses 321 on the blade body 32 are inserted into the two positioning slots 312 in a one-to-one correspondence manner, and the positioning bosses 321 enter and exit the corresponding positioning slots 312 through the corresponding openings.

Can promote the connection stability of axle sleeve 31 and blade body 32 through constant head tank 312 and location boss 321, avoid axle sleeve 31 and blade body 32 unexpected breaking away from, also can inject the relative position of axle sleeve 31 and blade body 32 simultaneously, avoid the play clearance of axle sleeve 31 and blade body 32 to offset the thrust that gas leakage gas acted on blade body 32, in other words, avoid the thrust of gas leakage gas to lead to blade body 32 to rock on axle sleeve 31, and do not promote axle sleeve 31 and rotate for installation axle 12, influence and obtain the testing result.

It will be appreciated that in other embodiments, the hub and blade body may be of unitary construction.

In some embodiments, the bracket 11 includes a plurality of connection beams 111, the plurality of connection beams 111 being connected in sequence around the stacking direction of the stack 2, the connection beams 111 being retractable along the length direction of the connection beams 111, the connection beams 111 being provided with shaft holes 112 for inserting the mounting shafts 12.

As shown in fig. 2 and 4, the bracket beam of the bracket 11 includes a cross beam extending in the left-right direction and a side beam extending in the front-rear direction, each of which includes a plurality of connecting beams 111 connected to each other, in other words, the bracket 11 includes a plurality of connecting beams 111 connected in sequence around the up-down direction.

The end of the connecting beam 111 is provided with a clamping groove, and in the connected cross beam and longitudinal beam, the clamping groove of the connecting beam 111 in the cross beam at the connecting position and the clamping groove of the connecting beam 111 in the longitudinal beam at the connecting position are oppositely arranged in the up-down direction, for example, the top surface of the connecting beam 111 in the cross beam is provided with a clamping groove, and the bottom surface of the connecting beam 111 in the longitudinal beam is provided with a clamping groove, so that the clamping groove of the connecting beam 111 in the cross beam at the connecting position and the clamping groove of the connecting beam 111 in the longitudinal beam at the connecting position are mutually clamped, in other words, the clamping groove of the connecting beam 111 in the cross beam at the connecting position is matched in the clamping groove of the connecting beam 111 in the longitudinal beam at the connecting position, thereby improving the structural stability of the bracket 11.

When the cross member and the side member have at least two connection beams 111, since the extending directions of the adjacent two connection beams 111 are identical, a socket portion may be provided at one end of one connection beam 111 to directly insert one end of the other connection beam 111 into the socket portion in the extending direction. In the embodiment shown in fig. 4, the connection beams 111 include a detachably connected clamping portion and an extending portion, the clamping portion is provided with a clamping groove, and two ends of the clamping portion can be respectively connected with the extending portion in a plugging manner along the extending direction, so that the extending portions of the two connection beams 111 can be connected through one clamping portion, so that at least two connection beams 111 are connected into a cross beam or a longitudinal beam. The length dimensions of the cross beams and the longitudinal beams and thus the dimensions of the brackets 11 and the frame assembly 1 are adjusted by the number of connecting beams 111 to be able to adapt to stacks 2 of different size models.

The connecting beam 111 is telescopic along the length direction of the connecting beam 111, preferably, the connecting beam 111 comprises a plurality of rod bodies sleeved from inside to outside in sequence, and two adjacent rod bodies can relatively slide along the extending direction of the connecting beam 111 so as to enable the connecting beam 111 to extend or shorten, thereby adjusting the length dimensions of the cross beam and the longitudinal beam, and further adjusting the dimensions of the bracket 11 and the frame assembly 1 so as to be capable of being adapted to electric stacks 2 of different size models.

The connection beam 111 is provided with a shaft hole 112 for inserting the mounting shaft 12 so that the connection beam 111 and the mounting shaft 12 are detachably inserted and connected to facilitate the disassembly and assembly of the frame assembly 1. When the connecting beam 111 includes a plurality of rod bodies, the rod wall surface of each rod body is provided with a shaft hole 112.

In some embodiments, the pile air leakage detection device according to the embodiments of the present invention further includes an air inlet/outlet connector 4, where the air inlet/outlet connector 4 is configured to be disposed on an end face, preferably an upper end face, of the pile 2, and the air inlet/outlet connector 4 is in communication with an air inlet/outlet of the pile 2, and the air supply assembly is in communication with the air inlet/outlet connector 4 through a pipeline, so as to supply air with a certain pressure into the pile 2, thereby detecting whether the pile 2 leaks air. The air supply assembly is preferably an air pump or a compressor.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between and not for indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.

Claims (10)

1. A stack gas leakage detection apparatus, characterized by comprising:

-a frame assembly (1), the frame assembly (1) having a receiving space for receiving a stack (2);

the blade assembly (3), blade assembly (3) are established on frame subassembly (1), and can be under gaseous promotion for frame subassembly (1) are around the axis rotation of blade assembly (3), blade assembly (3) are a plurality of, a plurality of blade assembly (3) with at least one terminal surface of pile (2) sets up relatively.

2. The stack gas leakage detection apparatus according to claim 1, wherein the frame assembly (1) is arranged around the stacking direction of the stacks (2).

3. A stack gas leakage detection apparatus according to claim 2, characterized in that the frame assembly (1) has a plurality of frame faces, which are arranged in sequence around the stacking direction of the stacks (2) and around which the accommodation space is formed, each frame face being provided with a plurality of the blade assemblies (3).

4. A stack gas leakage detection device according to any one of claims 1-3, characterized in that the frame assembly (1) comprises:

the supports (11) are arranged around the stacking direction of the electric pile (2), the number of the supports (11) is at least two, and the at least two supports (11) are arranged at intervals along the stacking direction of the electric pile (2);

the installation axle (12), installation axle (12) are followed the direction of stacking of pile (2) extends to connect two adjacent between support (11), installation axle (12) are a plurality of, a plurality of installation axle (12) are around the direction interval of stacking of pile (2) arranges, every installation axle (12) all overlaps and is equipped with a plurality of blade subassembly (3), same a plurality of on installation axle (12) blade subassembly (3) are followed the direction of extension of installation axle (12) is arranged in proper order, and can wind the axial rotation of installation axle (12).

5. The stack gas leakage detection apparatus according to claim 4, wherein said blade assembly (3) comprises a bushing (31) and a blade body (32), said bushing (31) being sleeved on the corresponding mounting shaft (12), said bushing (31) being provided with said blade body (32), said blade body (32) extending in a radial direction of said bushing (31).

6. Pile air leakage detection device according to claim 5, characterized in that the radial ends of the bushing (31) are provided with the blade bodies (32) respectively.

7. The stack gas leakage detection apparatus according to claim 5, wherein said blade body (32) is arranged in parallel with the end face of said oppositely arranged stack (2), and a distance between said blade body (32) and the end face of said oppositely arranged stack (2) is 5mm-10mm.

8. The stack gas leakage detecting apparatus according to claim 5, wherein an outer peripheral surface of said boss (31) is provided with a slot (311), said slot (311) extends in an axial direction of said boss (31) and forms an insertion port at least one axial end surface of said boss (31), and one end of said blade body (32) is inserted into said slot (311).

9. The stack gas leakage detecting apparatus according to claim 8, wherein a side wall surface of the slot (311) is provided with a positioning groove (312), the positioning groove (312) extends in an axial direction of the boss (31) and forms an opening at an end surface of the boss (31) provided with the insertion port, the blade body (32) has a positioning boss (321), and the positioning boss (321) is fitted in the positioning groove (312).

10. The stack gas leakage detecting apparatus according to claim 4, wherein said bracket (11) includes a plurality of connection beams (111), a plurality of said connection beams (111) being connected in sequence around a stacking direction of said stack (2), said connection beams (111) being retractable along a length direction of said connection beams (111), said connection beams (111) being provided with shaft holes (112) for inserting said mounting shafts (12).