Adjustable deionizer and fuel cell comprising same

Abstract

The utility model provides an adjustable deionizer and a fuel cell comprising the same, the adjustable deionizer comprises a shell, the shell comprises a plurality of shell sections which are communicated with one another, and the plurality of shell sections are detachably and hermetically connected in sequence along the extension direction of the shell; the fuel cell comprises the adjustable deionizer. According to the utility model, the shell comprises the plurality of shell sections which are communicated with one another, the plurality of shell sections are sequentially, detachably and hermetically connected along the extension direction of the shell, and the shell is arranged to be a sectional shell consisting of the plurality of shell sections, so that an operator can select a proper number of shell sections according to the requirements of the fuel cell system and connect the shell sections to form the shell; therefore, the effect of adaptively adjusting the specification of the deionizer according to requirements is achieved; besides, a specific shell section can be replaced during maintenance or the interior of the deionizer can be repaired and maintained after the shell section is detached, so that the maintenance convenience is improved, and the replacement cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen fuel cell system field, especially a kind of adjustable deionizer and fuel cell comprising it. BACKGROUND

[0002] With the transformation of global energy structure and the improvement of environmental protection requirement, fuel cell system as a kind of efficient, clean energy conversion technology, its research and application have been developed rapidly.In the many components of fuel cell system, cooling system is responsible for maintaining system in suitable operating temperature range, to ensure the stability of system and prolong service life.Over high conductivity can lead to the risk of conduction of cooling system, thereby causing security risks.In order to reduce the electrical conductivity, usually need to add deionizer in cooling system, to absorb the ions of each component during system operation, reduce the influence of ion on cooling liquid conductivity.

[0003] At present, the design of deionizer is mostly fixed structure, its shell and middle tube adopt integral manufacturing, size and shape have been determined in production.This design limits the flexibility and adaptability of deionizer, cannot be adjusted according to the specific needs of fuel cell system.For example, different models of fuel cell system may need different size and shape of deionizer to achieve optimal performance, different specifications of deionizer will also affect the life of deionizer, different fuel cells have different life requirements;In addition, the fixed structure of deionizer is inconvenient in maintenance and replacement, increases the maintenance cost of system. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects that the shell structure of deionizer is fixed and difficult to adapt to adjustment and selection in the prior art, and to provide a kind of adjustable deionizer and fuel cell comprising it.

[0005] The utility model solves the above technical problems by the following technical scheme:

[0006] An adjustable deionizer, comprising a shell, the shell comprises a plurality of shell segments in communication with each other, and the plurality of shell segments are sequentially and detachably sealed connected along the extension direction of the shell.

[0007] In the present scheme, by making the shell include a plurality of shell segments in communication with each other, and the plurality of shell segments are sequentially and detachably sealed connected along the extension direction of the shell, the shell is set as a segmented shell composed of several shell segments, so that the operator can select the appropriate number of shell segments according to the needs of fuel cell system and connect to form the shell, so as to achieve the effect of adaptively adjusting the specifications of deionizer according to the needs;In addition, specific shell segments can also be replaced during maintenance or disassembled to repair and maintain the inside of deionizer, improve the convenience of maintenance, and reduce the replacement cost.

[0008] Preferably, the adjustable deionizer further comprises a first flange and a second flange, the first flange and the second flange are connected with two adjacent shell segments respectively, and the first flange and the second flange are sealingly connected through a connecting piece.

[0009] In the scheme, the shell segments of the adjustable deionizer are detachably connected through the flange connection, which ensures the stability of the connection between the shell segments.

[0010] Preferably, the adjustable deionizer further comprises a sealing piece, the opposite sides of the sealing piece are connected with the first flange and the second flange respectively.

[0011] In the scheme, the sealing piece is arranged between the first flange and the second flange, which increases the sealing property of the connection between the shell segments.

[0012] Preferably, the shell body comprises a liquid inlet and a liquid outlet which are in communication with the shell segments, and the liquid inlet and the liquid outlet are arranged on the end faces of the two ends of the shell body respectively.

[0013] In the scheme, the liquid inlet and the liquid outlet are arranged on the end faces of the two ends of the shell body, so that the cooling liquid flows along the length direction of the deionizer and flows through all the shell segments along the length direction, which prolongs the effective path of the deionization effect.

[0014] Preferably, the liquid inlet and the liquid outlet are coaxially arranged along the length direction of the shell body.

[0015] In the scheme, the liquid inlet and the liquid outlet are coaxially arranged along the length direction of the shell body, which makes the flow channel of the cooling liquid smooth, and the coaxial arrangement can ensure that the cooling liquid uniformly flows through the inside of the container, increase the deionization effect, and reduce the risk of conduction.

[0016] Preferably, the middle part of the side wall of the shell segment is recessed inward compared to the two ends of the shell segment.

[0017] In the scheme, the middle part of the side wall of the shell segment is recessed inward compared to the two ends of the shell segment, so that the diameter of the shell segment near the flange connection is greater than the diameter of the middle part of the shell segment, and the shell segment near the connection has better structural strength.

[0018] Preferably, the adjustable deionizer comprises a first filter, the first filter is arranged at the liquid inlet, and the projection of the first filter along the axis direction of the liquid inlet covers the liquid inlet; and / or, the adjustable deionizer comprises a second filter, the second filter is arranged at the liquid outlet, and the projection of the second filter along the axis direction of the liquid outlet covers the liquid outlet.

[0019] In the present scheme, by setting the filter and the filter along the axis of the inlet and outlet port projection cover inlet and outlet, the cooling liquid into the deionizer through the filter, on the one hand to prevent impurities and foreign matter into the deionizer, affect the deionization effect or cause damage, on the other hand to prevent the deionization components in the deionizer outflow, increase the service life of the deionizer. Among them, the first filter is set in the inlet, which can achieve the above effect when the cooling liquid flows through the inlet; the second filter is set in the outlet, which can achieve the above effect when the cooling liquid flows through the outlet. Preferably, the inner surface of the shell segment near the inlet and the first filter is provided with a first recess, and the other is provided with a first protrusion matched with the first recess; and / or, the inner surface near the outlet and the second filter is provided with a second recess, and the other is provided with a second protrusion matched with the second recess.

[0020] In the present scheme, by setting the filter and the filter along the axis of the inlet and outlet port projection cover inlet and outlet, the cooling liquid into the deionizer through the filter, on the one hand to prevent impurities and foreign matter into the deionizer, affect the deionization effect or cause damage, on the other hand to prevent the deionization components in the deionizer outflow, increase the service life of the deionizer. Among them, the first filter is set in the inlet, which can achieve the above effect when the cooling liquid flows through the inlet; the second filter is set in the outlet, which can achieve the above effect when the cooling liquid flows through the outlet. Preferably, the inner surface of the shell segment near the inlet and the first filter is provided with a first recess, and the other is provided with a first protrusion matched with the first recess; and / or, the inner surface near the outlet and the second filter is provided with a second recess, and the other is provided with a second protrusion matched with the second recess.

[0021] Preferably, the surface of the first filter facing the inlet is provided with a plurality of third recesses recessed away from the inlet, and at least part of the filter holes are arranged in the third recesses, wherein the first gap is formed between the first filter and the inlet; and / or, the surface of the second filter facing the outlet is provided with a plurality of fourth recesses recessed away from the outlet, and at least part of the filter holes are arranged in the fourth recesses, wherein the second gap is formed between the second filter and the outlet.

[0022] In the scheme, a plurality of third grooves and fourth grooves recessed away from the liquid inlet direction are respectively arranged on the surfaces of the first filter element and the second filter element, and at least part of filter holes are arranged in the grooves, so that the cooling liquid passes through the filter holes to achieve the filtering effect, and the filter liquid flow field is more uniform by arranging the filter holes in the third grooves and the fourth grooves distributed in the circumferential direction. The gap and the third groove and the fourth groove are arranged according to the arrangement of the filter element, that is, the corresponding third groove and the first gap are arranged when the first filter element is arranged, and the corresponding fourth groove and the second gap are arranged when the second filter element is arranged. The gap can be generated by the shape of the filter element, and the gap between the center of the filter element and the end face is left by arranging the filter element as a shape recessed inward from the center. The gap is left between the filter element and the liquid inlet or the liquid outlet, so that the liquid can flow more uniformly through the grooves distributed in the circumferential direction or flow out of the grooves.

[0023] The utility model also provides a fuel cell, including cooling system, cooling system includes above adjustable deionizer.

[0024] The positive progress effect of the utility model lies in: by comprising a plurality of shell segments which are communicated with each other, the plurality of shell segments are sequentially and detachably sealed and connected along the extension direction of the shell, the shell is set as a sectional shell composed of a plurality of shell segments, so that an operator can select appropriate shell segment number and connect to form the shell according to the needs of the fuel cell system, thereby achieving the effect of adaptively adjusting the specifications of the deionizer according to the needs; in addition, specific shell segments can be replaced or the inside of the deionizer can be repaired and maintained after disassembly during maintenance, thereby improving the convenience of maintenance and reducing the replacement cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic diagram of the adjustable deionizer of the preferred embodiment of the utility model.

[0026] Figure 2 It is a sectional view schematic diagram of the adjustable deionizer of the preferred embodiment of the utility model.

[0027] Figure 3 It is a structure schematic diagram of the filter element of the preferred embodiment of the utility model.

[0028] BRIEF DESCRIPTION OF DRAWINGS:

[0029] Shell 1

[0030] Shell segment 100

[0031] First flange 110

[0032] Second flange 120

[0033] Connecting piece 111

[0034] Seal 112

[0035] End face 130

[0036] Liquid inlet 131

[0037] Liquid outlet 132

[0038] Side wall 101

[0039] First filter 140

[0040] Second filter 141

[0041] First groove 161

[0042] Second groove 162

[0043] Third groove 163

[0044] Filter hole 142

[0045] Sealing ring 143

[0046] First gap 151

[0047] Second gap 152 DETAILED DESCRIPTION

[0048] The utility model will be described in detail below with reference to the preferred embodiments and drawings.

[0049] As Figures 1-3 shown, the embodiment provides an adjustable deionizer, which comprises a shell 1, the shell 1 comprises a plurality of shell segments 100 in communication with each other, and the plurality of shell segments 100 are detachably and sealingly connected in sequence along the extension direction of the shell 1.

[0050] In the scheme, by making the shell 1 comprise a plurality of shell segments 100 in communication with each other and the plurality of shell segments 100 be detachably and sealingly connected in sequence along the extension direction of the shell 1, the shell 1 is set as a segmented shell 1 composed of the plurality of shell segments 100, so that an operator can select a proper number of shell segments 100 according to the needs of the fuel cell system and connect them to form the shell 1, thereby achieving the effect of adaptively adjusting the specifications of the deionizer according to the needs; in addition, specific shell segments 100 can be replaced or disassembled for repair and maintenance of the interior of the deionizer during maintenance, thereby improving the convenience of maintenance and reducing the replacement cost.

[0051] As Figure 2As shown, in a preferred embodiment, the adjustable deionizer further includes a first flange 110, a second flange 120, and a connector 111. The first flange 110 and the second flange 120 are respectively connected to two adjacent shell segments 100, and the first flange 110 and the second flange 120 are sealedly connected via the connector 111. In this embodiment, the shell segments 100 of the adjustable deionizer are detachably connected by the flange connection, thereby ensuring the stability of the connection between the shell segments 100.

[0052] In other embodiments, those skilled in the art may also select a clamp or other connector 111 with a detachable connection function and a connection method according to actual needs.

[0053] like Figure 2 As shown, the adjustable deionizer further includes a seal 112, and opposite sides of the seal 112 are respectively connected to the first flange 110 and the second flange 120. By providing the seal 112 between the first flange 110 and the second flange 120, the sealing performance of the connection between the shell sections 100 is improved.

[0054] like Figure 1 or Figure 2 As shown, the shell 1 includes a liquid inlet 131 and a liquid outlet 132 in communication with the shell segment 100. The liquid inlet 131 and the liquid outlet 132 are respectively arranged on the end faces 130 at both ends of the shell 1. In this embodiment, the end face 130 is a flange structure, and the end face 130 and the shell segment 100 are flange-connected via a connector 111. By providing the liquid inlet 131 and the liquid outlet 132 on the end faces 130 at both ends of the shell 1, the coolant is allowed to circulate along the length of the deionizer and flow through all shell segments 100 along the length, extending the effective path for maintaining the deionization effect. The flange connection also allows the end face 130 and the shell segment 100 to be detachably connected, ensuring the reliability of the deionizer while facilitating the disassembly of the end face 130 to maintain the liquid inlet 131 or the liquid outlet 132.

[0055] In other embodiments, the connection method between the end face 130 where the liquid inlet 131 and the liquid outlet 132 are located and the shell segment 100 can also be set according to actual needs, and can be in the form of a clamp, a snap-fit ​​connection or other limiting parts. The end face 130 can also be an integrated structure with the shell segment 100.

[0056] like Figure 1 and Figure 2As shown, by arranging the liquid inlet 131 and the liquid outlet 132 coaxially along the length of the shell 1, the flow path of the coolant is unobstructed. The coaxial arrangement can ensure that the coolant flows evenly through the interior of the container, enhance the deionization effect, and reduce the risk of electrical conduction. In this embodiment, the liquid inlet 131 extends away from the end surface 130 to form a hollow tubular liquid inlet pipe. Similarly, the liquid outlet 132 forms a liquid outlet pipe. The diameters of the liquid inlet and liquid outlet pipes are both smaller than the diameter of the shell section 100. In the specific implementation process, the diameters of the liquid inlet and liquid outlet pipes can be designed by those skilled in the art as needed, and other forms can also be adopted, including directly opening holes in the end surface as the liquid inlet and liquid outlet holes.

[0057] like Figure 2 As shown, in a preferred embodiment, by making the middle portion of the sidewall 101 of the shell segment 100 inwardly recessed 141 relative to the ends of the shell segment 100, the diameter of the shell segment 100 near the flange connection is made larger than the diameter of the middle portion of the shell segment 100, thereby providing the shell segment 100 near the connection with greater structural strength. The specific shape of the sidewall 101 of the shell segment 100 can be designed as needed by those skilled in the art. In other embodiments, the shell segment 100 can also be configured as a cylindrical structure with a constant diameter, thereby achieving the technical effect of the present application of designing the shell 1 in sections to facilitate adaptive selection and adjustment of the number of sections according to the requirements of the fuel cell.

[0058] like Figure 2 As shown, the adjustable deionizer includes a first filter element 140, which is arranged at the liquid inlet 131, and the projection of the first filter element 140 along the axial direction of the liquid inlet 131 covers the liquid inlet 131; the adjustable deionizer includes a second filter element 141, which is arranged at the liquid outlet 132, and the projection of the second filter element 141 along the axial direction of the liquid outlet 132 covers the liquid outlet 132.

[0059] In this embodiment, by providing a filter element 140 such that its projection along the axis of the liquid inlet and outlet 132 covers the liquid inlet 131 and the liquid outlet 132, the coolant is filtered by the filter element 140 as it enters and exits the deionizer. This prevents impurities and foreign matter from entering the deionizer and potentially affecting or damaging the deionization effect. Furthermore, it prevents the deionization components within the deionizer from flowing out, thereby increasing the service life of the deionizer. The provision of a first filter element 140 at the liquid inlet 131 achieves this effect when the coolant flows through the liquid inlet 131, and the provision of a second filter element 141 at the liquid outlet 132 achieves this effect when the coolant flows through the liquid outlet 132.

[0060] In other embodiments, one of the first filter 140 and the second filter 141 can be installed according to actual needs, or both the first filter 140 and the second filter 141 can be installed to achieve the best effect. In the embodiment, both the first filter 140 and the second filter 141 are provided as preferred modes, and the structures and designs of the first filter 140 and the second filter 141 are the same, as shown in Figure 3 .

[0061] As shown in Figure 2 , one of the inner surface of the shell segment 100 near the liquid inlet 131 and the first filter 140 is provided with a first groove 161, and the other is provided with a first protrusion matched with the first groove 161; one of the inner surface of the shell segment 100 near the liquid outlet 132 and the second filter 141 is provided with a second groove 162, and the other is provided with a second protrusion matched with the second groove 162.

[0062] In the embodiment, the shell segment 100 is provided with a groove 145 for clamping the filter 140 on the inner surface of the side end surface 130 near the liquid inlet 131 or the liquid outlet 132, so that the filter 140 is clamped in the groove 145, and the filter 140 is arranged at the liquid inlet 131 and the liquid outlet 132 in a clamped manner, facilitating disassembly and installation. The groove and the protrusion are arranged according to the arrangement of the filter, that is, when the first filter 140 is arranged, the corresponding first groove 161 and the first protrusion are arranged, and when the second filter 141 is arranged, the corresponding second groove 162 and the second protrusion are arranged. In the embodiment, the protrusion is a sealing ring 143 sleeved on the arranged filter, so that the filter and the shell segment 100 are detachably connected in a sealed manner, and it is ensured that the cooling liquid in the shell segment 100 flows into or out of the shell segment 100 through the filter and is filtered. In other embodiments, the protrusion can be designed in an integrated manner with the filter to achieve clamping.

[0063] As shown in Figure 2 and Figure 3 , the surface of the first filter 140 facing the liquid inlet 131 is provided with a plurality of third grooves 163 recessed away from the liquid inlet 131, and at least part of the filter holes 142 are arranged in the third grooves 163, wherein the first filter 140 and the liquid inlet 131 have a first gap 151; the surface of the second filter 141 facing the liquid outlet 132 is provided with a plurality of fourth grooves (not shown in the figure) recessed away from the liquid outlet 132, and at least part of the filter holes 142 are arranged in the fourth grooves, wherein the second filter 141 and the liquid outlet 132 have a second gap 152. In the embodiment, the structures and designs of the first filter 140 and the second filter 141 are the same, so the designs of the third grooves 163 and the fourth grooves are consistent, as shown in Figure 3 .

[0064] In the embodiment, the third groove 163 and the fourth groove are respectively arranged on the surface of the inlet 131 of the first filter 140 and the second filter 141, and the filter hole 142 is arranged in the groove, so that the cooling liquid passes through the filter hole 142 to achieve the filtering effect. The filter hole 142 is arranged in the third groove 163 and the fourth groove distributed along the circumference, so that the liquid flow field of the filtered liquid is more uniform. The gap and the third groove 163 and the fourth groove are arranged according to the arrangement of the filter. When the first filter 140 is arranged, the corresponding third groove 163 and the first gap 151 are arranged. When the second filter 141 is arranged, the corresponding fourth groove and the second gap 152 are arranged. The gap is arranged according to the shape of the filter. The filter is arranged in a shape of being concave towards the center, so that the gap is left between the center of the filter and the end face. The gap is left between the filter and the inlet 131 or the outlet 132, so that the liquid can flow through the groove distributed along the circumference or flow out of the groove more uniformly.

[0065] The embodiment also provides a fuel cell comprising the cooling system.

[0066] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. An adjustable deionizer comprising a housing, characterized in that, The shell comprises a plurality of shell segments in communication with each other, and the plurality of shell segments are detachably and sealingly connected in sequence along the extension direction of the shell; The shell comprises a liquid inlet and a liquid outlet in communication with the shell segments, the adjustable deionizer comprises a first filter, the first filter is arranged at the liquid inlet, a surface of the first filter facing the liquid inlet is provided with a plurality of third grooves recessed away from the liquid inlet, the first filter is provided with a plurality of filter holes, and at least part of the filter holes are arranged in the third grooves, wherein the first filter and the liquid inlet have a first gap therebetween; And / or, the adjustable deionizer comprises a second filter, the second filter is arranged at the liquid outlet, a surface of the second filter facing the liquid outlet is provided with a plurality of fourth grooves recessed away from the liquid outlet, the second filter is provided with a plurality of filter holes, and at least part of the filter holes are arranged in the fourth grooves, wherein the second filter and the liquid outlet have a second gap therebetween.

2. The adjustable deionizer of claim 1 wherein, The adjustable deionizer further comprises a first flange, a second flange and a connecting piece, the first flange and the second flange are connected with two adjacent shell segments respectively, and the first flange and the second flange are sealingly connected through the connecting piece.

3. The adjustable deionizer of claim 2 wherein, The adjustable deionizer further comprises a sealing piece, and opposite sides of the sealing piece are connected with the first flange and the second flange respectively.

4. The adjustable deionizer of claim 1 wherein, The liquid inlet and the liquid outlet are arranged on the end faces of the two ends of the shell respectively.

5. The adjustable deionizer of claim 4 wherein, The liquid inlet and the liquid outlet are coaxially arranged along the length direction of the shell.

6. The adjustable deionizer of claim 1 wherein, The middle part of the side wall of the shell segment is recessed inward compared to the two ends of the shell segment.

7. The adjustable deionizer of claim 4 wherein, The projection of the first filter along the axis direction of the liquid inlet covers the liquid inlet; And / or, the projection of the second filter along the axis direction of the liquid outlet covers the liquid outlet.

8. The adjustable deionizer of claim 7 wherein, One of the inner surface close to the liquid inlet and the first filter is provided with a first groove, and the other is provided with a first protrusion matched with the first groove; And / or, one of the inner surface close to the liquid outlet and the second filter is provided with a second groove, and the other is provided with a second protrusion matched with the second groove.

9. A fuel cell comprising a cooling system, characterized in that The cooling system comprises the adjustable deionizer according to any one of claims 1-8.

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