CN111790459B - Ion exchanger for removing ions from a liquid - Google Patents

Ion exchanger for removing ions from a liquid Download PDF

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Publication number
CN111790459B
CN111790459B CN202010685006.2A CN202010685006A CN111790459B CN 111790459 B CN111790459 B CN 111790459B CN 202010685006 A CN202010685006 A CN 202010685006A CN 111790459 B CN111790459 B CN 111790459B
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China
Prior art keywords
runner
resin particles
cylinder
cylinder body
holes
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CN202010685006.2A
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CN111790459A (en
Inventor
崔鹏鹏
林志磊
胡广双
王卫东
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PINGYUAN FILTER CO Ltd
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PINGYUAN FILTER CO Ltd
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Priority to CN202010685006.2A priority Critical patent/CN111790459B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00Ion-exchange processes in general; Apparatus therefor
    • B01J47/02Column or bed processes
    • B01J47/022Column or bed processes characterised by the construction of the column or container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00Ion-exchange processes in general; Apparatus therefor
    • B01J47/02Column or bed processes
    • B01J47/04Mixed-bed processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses an ion exchanger, which comprises a cylinder body, wherein one axial end of the cylinder body is provided with an outlet component, and the other axial end of the cylinder body is provided with an inlet component; a separation structure formed by connecting a plurality of separation pieces in series is arranged in the cylinder; the radial outer end of the partition piece is connected with the inner wall of the cylinder body, and a plurality of runner holes are uniformly formed in the plane perpendicular to the axis of the partition piece; the runner holes of the separators communicated in the same straight line direction form a runner, and each runner is internally provided with positive resin particles and negative resin particles; the ratio of the cross-sectional area to the average area of each runner hole is between 0.8 and 1.2; the two axial end parts of each partition piece are provided with through grooves communicated with adjacent flow channels at the joint of the flow channel holes. The invention not only improves the uniformity of the distribution of the resin in the cylinder, prevents part of cooling liquid from flowing through the resin, but also prevents the whole length of a certain runner from losing the flow guiding and deionizing effects caused by the local blockage of the runner, and is easy to process and manufacture without designing different separation structures for different vehicle types.

Description

Ion exchanger for removing ions from a liquid
Technical Field
The invention relates to the technical field of hydrogen fuel cells, in particular to a device for removing ions in a cooling liquid in a cooling circulation system of a hydrogen fuel cell automobile.
Background
The hydrogen fuel cell is a power generation device which directly converts chemical energy into electric energy by reacting carried fuel hydrogen with oxygen in air, has the advantages of high energy density, high conversion efficiency, zero pollution emission and the like, and has wide application prospect in the fields of aerospace, military power supplies, transportation, fixed power stations, portable power supplies and the like.
A large amount of heat is generated during the operation of the hydrogen fuel cell, and too high or too low a temperature may reduce the performance of the fuel cell system. In order to reach the optimal working temperature, at present, a cooling liquid with extremely low conductivity is generally used for cooling a fuel cell system, however, after a period of circulation, related pipe fittings and parts in the system can separate out some ions, which can lead to gradual rise of the conductivity of the cooling liquid, and too high conductivity of the cooling liquid can lead to reduction of the insulation performance of the whole system and influence the safety performance of the whole vehicle, so that a deionization device is additionally arranged in the cooling circulation system to filter charged ions generated in the cooling circulation system, thereby reducing the conductivity of the cooling liquid in the system.
The existing deionization device for the hydrogen fuel cell comprises a cylinder body, wherein resin is filled in the cylinder body, a water inlet and a water outlet are respectively arranged at two ends of the cylinder body, and filter discs are arranged at the water inlet and the water outlet. Such a deionization apparatus has the following drawbacks:
1. the resin cannot be uniformly distributed in each part of the cylinder, and part of the cooling liquid directly flows out without being aligned with the resin, so that the deionization effect is required to be improved;
2. the overall flow resistance is high;
3. the resin may have a severe sticking phenomenon.
If the cylinder is divided into a plurality of runners along the axis of the cylinder, resin is filled in each runner, so that the uniformity of the distribution of the resin in the cylinder is greatly improved, and all cooling liquid can flow through the resin in the cylinder, but the following problems are caused by the mode: 1. when a certain flow passage is blocked at a certain position, the whole length of the flow passage loses the functions of diversion and deionization. 2. The processing difficulty is high and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide an ion exchanger for removing ions in liquid, which not only improves the uniformity of resin distribution in a cylinder, prevents part of cooling liquid from flowing through the resin, but also prevents the whole length of a certain flow passage from losing the flow guiding and ion removing effects caused by partial blockage of the flow passage, and is easy to process and manufacture without designing different separation structures for different vehicle types.
In order to achieve the above object, an ion exchanger for removing ions in a liquid according to the present invention comprises a cylindrical body having an outlet member at one axial end and an inlet member at the other axial end, the cylindrical body being connected in series in a hydrogen fuel cell coolant line through the outlet member and the inlet member;
a separation structure formed by connecting a plurality of separation pieces in series along the axial direction of the cylinder body is arranged in the cylinder body; the separating piece and the cylinder body are coaxially arranged, the radial outer end of the separating piece is connected with the inner wall of the cylinder body, the separating piece is uniformly provided with a plurality of runner holes on a plane vertical to the axis, and the runner holes of each two adjacent separating pieces are in one-to-one correspondence and are mutually communicated; the runner holes of the separators communicated in the same straight line direction form a runner, and each runner is internally provided with positive resin particles and negative resin particles; the particle diameters of the positive resin particles and the negative resin particles are 0.3 mm-0.5 mm; the average cross-sectional area of each runner hole is S square millimeters, and the ratio of the cross-sectional area of each runner hole to S is between 0.8 and 1.2;
the two axial end parts of each partition piece are provided with through grooves communicated with adjacent flow channels at the joint of the flow channel holes.
The inlet part and the outlet part are symmetrical in structure;
the inlet part comprises a water pipe used for being connected in a cooling pipeline of the hydrogen fuel cell, the water pipe is connected with an end cover used for being connected with the cylinder body, the connection part of the end cover and the water pipe is a horn mouth, and a liquid channel used for shunting cooling liquid is arranged at the horn mouth; one side of the end cover facing the cylinder is connected with a filter screen for preventing impurity particles in the cooling liquid from entering the cylinder and simultaneously preventing the positive resin particles and the negative resin particles from flowing out of the cylinder;
the water passage pipe of the inlet part is used for connecting a cooling liquid pipeline at the upstream of the cylinder body, and the water passage pipe of the outlet part is used for connecting a cooling liquid pipeline at the downstream of the cylinder body.
The plug-in structure between the separating pieces is as follows:
a plug-in protrusion is arranged at the center of one end of the partition piece along the axial direction, a plug-in groove is arranged at the center of the other end of the partition piece along the axial direction, and the plug-in groove is matched with the plug-in protrusion; adjacent separating pieces are spliced and fixed together with the splicing grooves through splicing bulges.
The two ends of the axis of the separation structure are provided with pore plates for sealing the positive resin particles and the negative resin particles in each runner, through holes are uniformly distributed on the pore plates, and the diameters of the through holes are smaller than those of the positive resin particles and the negative resin particles.
The invention has the following advantages:
1. the invention forms the separation structure through the plurality of separation pieces which are connected in series, and compared with the integral forming of the whole separation structure, the invention is easier to manufacture and is very convenient to connect.
If the whole separation structure is integrally formed, different separation structure templates and separation structures are required to be designed and manufactured for different vehicle types, the design cost and the manufacturing cost are both high, and the design and manufacturing efficiency is low.
The ion exchangers with different lengths can adopt the same partition pieces by adopting the partition pieces which are connected in series in an inserted manner to form the partition structure, and the partition structures with different lengths are formed by different numbers of the partition pieces, so that the design cost and the manufacturing cost for manufacturing different partition structures for different vehicle types are saved, and the design and manufacturing efficiency is improved.
2. The positive resin particles and the negative resin particles are uniformly distributed on the section of the whole cylinder, and the positive resin particles and the negative resin particles are arranged in each runner, so that the phenomenon that part cooling liquid does not flow through the resin particles is avoided, and the deionization effect is improved.
3. The two axial ends of each partition piece are provided with through grooves communicated with adjacent flow channels at the joint of the flow channel holes, so that when one flow channel is blocked, the flow channel above the blocking point still can play the role of the flow channel, the cooling liquid can still pass through the flow channel and remove ions by the positive resin particles and the negative resin particles in the flow channel, and the cooling liquid flows to other flow channels at the adjacent through grooves above the blocking point and flows out through other flow channels.
4. The flow channels separate the resin, thereby avoiding the phenomenon of large-scale adhesion of the resin.
5. The average cross-sectional area of each runner hole is S square millimeters, the ratio of the cross-sectional area of each runner hole to S is between 0.8 and 1.2, so that the areas of the runner holes are approximately equal, the resistance of each runner is not great, and the method is beneficial to reducing the overall flow resistance and improving the uniformity of the deionization effect of the cooling liquid.
6. The invention has the characteristics of large exchange capacity and low flow resistance, and resin particles are filled into the gaps of each runner in a vibration mode and the like.
7. On the whole, the invention has compact structure, and can more easily meet the requirement of limited installation space in the vehicle, thereby being suitable for more vehicle types. When the cooling liquid flows through the invention, the pressure loss is reduced by about 30% as a whole, the overall flow resistance is lower, the resin utilization rate is higher, and the exchange efficiency is higher.
8. The inlet part and the outlet part are symmetrical in structure, so that the cooling liquid pipe has no positive and negative directions in the axial direction, can be installed on a cooling liquid pipe in series without distinguishing the positive and negative directions, is quite convenient to install and work, and the cooling liquid entering the cylinder body is filtered by the filter screen certainly no matter how to install. The filter screen is preferably a stainless steel screen or a plastic screen.
9. The function of the common filter screen is one-way filtration, when the one-way filtration is used as a target, the mesh size of the filter screen does not consider the particles on the other side, and the particles on the other side cannot be prevented from passing through the filter screen. The filter screen in the invention considers the bidirectional blocking effect, prevents impurities in the cooling liquid from entering the cylinder body outwards, and prevents the positive resin particles and the negative resin particles from flowing out of the cylinder body inwards, and the skilled person can select the proper mesh size of the filter screen to realize the bidirectional blocking effect under the aim. A filter screen realizes double functions (filtering and preventing resin from losing), and the structure is simplified.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of the inlet and outlet members;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a schematic view of a first shape of a separator;
FIG. 5 is a perspective view of a first shape of a separator;
FIG. 6 is a perspective view of a separator of a second shape;
fig. 7 is a perspective view of a separator of a third shape.
Detailed Description
As shown in fig. 1 to 7, the ion exchanger for removing ions from a liquid of the present invention comprises a cylindrical body 1, an outlet member 2 is provided at one axial end of the cylindrical body 1 and an inlet member 3 is provided at the other axial end of the cylindrical body 1, and the cylindrical body 1 is connected in series in a hydrogen fuel cell coolant line through the outlet member 2 and the inlet member 3;
a separation structure formed by connecting a plurality of separation pieces 4 in series along the axial direction of the cylinder body 1 is arranged in the cylinder body 1; the separating pieces 4 are coaxially arranged with the cylinder body 1, the radial outer ends of the separating pieces 4 are connected with the inner wall of the cylinder body 1, the separating pieces 4 are uniformly provided with a plurality of runner holes 5 on a plane vertical to the axis, and the runner holes 5 of each adjacent separating piece 4 are in one-to-one correspondence and are mutually communicated; the runner holes 5 of the separators 4 communicated in the same straight line direction form a runner, and each runner is internally provided with a positive resin particle 6 and a negative resin particle 7; the particle diameters of the male resin particles 6 and the female resin particles 7 are each 0.3 mm to 0.5 mm (inclusive); the average cross-sectional area of each runner hole 5 is S square millimeters, and the ratio of the cross-sectional area of each runner hole 5 to S is between 0.8 and 1.2 (including two end values);
the two axial end parts of each separator 4 are provided with through grooves 8 which are communicated with adjacent flow passages at the joint of the flow passage holes 5.
In the present invention, the fixing connection parts (such as the connection parts of the outlet part 2 and the inlet part 3 and the cylinder 1) can be, but not limited to, injection molding, welding or bonding.
In the present invention, the height of each separator 4 is generally 15 mm to 20 mm, the axial thickness is 0.8 mm to 1.2 mm, and the cross-sectional area of each flow passage hole 5 is between 200 square mm to 300 square mm. Each of the above numerical ranges includes both ends. The shape of the separator 4 may be varied, and three shapes are shown in fig. 4 to 7, which are convenient to manufacture.
The cross section of the cylinder 1 may be circular, square or other shapes.
The inlet part 3 and the outlet part 2 are symmetrical in structure; the inlet part 3 comprises a water pipe 9 used for being connected in a hydrogen fuel cell cooling pipeline, the water pipe 9 is connected with an end cover 11 used for being connected with the cylinder body 1, the joint of the end cover 11 and the water pipe 9 is a horn mouth 10, and a liquid channel 12 used for shunting cooling liquid after CAE optimization is arranged at the horn mouth 10; a filter screen 13 for preventing foreign particles in the cooling liquid from entering the cylinder 1 and simultaneously preventing the male resin particles 6 and the female resin particles 7 from flowing out of the cylinder 1 is connected to one side of the end cover 11 facing the cylinder 1;
the inlet part 3 and the outlet part 2 are symmetrical in structure, so that the cooling liquid pipe has no front and back in the axial direction, can be installed on a cooling liquid pipe in series without distinguishing the front and back, is quite convenient to install and work, and the cooling liquid entering the cylinder body 1 is filtered by the filter screen 13 without any problem. The filter screen 13 is preferably a stainless steel screen or a plastic screen.
The conventional filter 13 is used for unidirectional filtration, and when the unidirectional filtration is aimed, the mesh size of the filter 13 does not consider the particulate matters on the other side, and the particulate matters on the other side cannot be prevented from passing through the filter 13. The screen 13 in the present invention takes into account the bidirectional blocking effect of preventing foreign matters in the coolant from entering the cylinder 1, and preventing the male resin particles 6 and the female resin particles 7 from flowing out of the cylinder 1, and the skilled person can select a suitable screen 13 mesh size to achieve the above-mentioned bidirectional blocking effect under the object. A screen 13 performs a double function (filtration and resin run-off prevention), simplifying the structure.
The water passage 9 of the inlet member 3 is for connecting a coolant line upstream of the cylinder 1, and the water passage 9 of the outlet member 2 is for connecting a coolant line downstream of the cylinder 1. The inlet member 3 and the outlet member 2 may be used interchangeably so that the invention does not need to be mounted in a positive or negative manner.
The plug-in structure between the spacers 4 is: a plug-in protrusion 14 is arranged at the center of one end of the partition piece 4 along the axial direction, a plug-in groove 15 is arranged at the center of the other end of the partition piece 4 along the axial direction, and the plug-in groove 15 is matched with the plug-in protrusion 14; adjacent spacers 4 are fixed together by plugging projections 14 and plugging grooves 15.
The two ends of the axis of the separation structure are provided with pore plates for sealing the positive resin particles 6 and the negative resin particles 7 in each runner, through holes are uniformly distributed on the pore plates, and the diameters of the through holes are smaller than those of the positive resin particles 6 and the negative resin particles 7. The orifice plate is a selective component, and can also be omitted. The orifice plate is of conventional construction and is not shown. The flow resistance of the orifice plate is smaller, and the orifice plate can encapsulate more positive resin particles 6 and negative resin particles 7 in the same flow channel, so that the orifice plate has the advantages of being used by a designer according to the needs.
When in use, the invention is connected in series in the hydrogen fuel cell coolant pipeline through the water pipe 9 of the inlet part 3 and the outlet part 2, the inlet part 3 and the outlet part 2 are not different, and can be mutually converted, so that the invention does not need to distinguish between the front side and the back side during installation. The cooling liquid enters the water pipe 9 of the inlet part 3, is dispersed through the liquid channel 12 and the end cap 11 after passing through the bell mouth 10, and is filtered while passing through the filter screen 13. The filtered cooling liquid enters the cylinder 1 and then enters each runner, contacts with the positive resin particles 6 and the negative resin particles 7 in each runner, the positive resin particles 6 remove anions in the cooling liquid, and the negative resin particles 7 remove cations in the cooling liquid. The conductivity of the deionized cooling liquid is obviously reduced, so that potential safety hazards to the whole vehicle due to the conduction of the cooling liquid are prevented.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.

Claims (2)

1. The ion exchanger for removing ions in the liquid comprises a cylinder, wherein one axial end of the cylinder is provided with an outlet component, the other axial end of the cylinder is provided with an inlet component, and the cylinder is connected in series in a hydrogen fuel cell cooling liquid pipeline through the outlet component and the inlet component;
the method is characterized in that: a separation structure formed by connecting a plurality of separation pieces in series along the axial direction of the cylinder body is arranged in the cylinder body; the separating piece and the cylinder body are coaxially arranged, the radial outer end of the separating piece is connected with the inner wall of the cylinder body, the separating piece is uniformly provided with a plurality of runner holes on a plane vertical to the axis, and the runner holes of each two adjacent separating pieces are in one-to-one correspondence and are mutually communicated; the runner holes of the separators communicated in the same straight line direction form a runner, and each runner is internally provided with positive resin particles and negative resin particles; the particle diameters of the positive resin particles and the negative resin particles are 0.3 mm-0.5 mm; the average cross-sectional area of each runner hole is S square millimeters, and the ratio of the cross-sectional area of each runner hole to S is between 0.8 and 1.2;
the two axial end parts of each partition piece are provided with through grooves communicated with adjacent flow channels at the joint of the flow channel holes;
the inlet part and the outlet part are symmetrical in structure;
the inlet part comprises a water pipe used for being connected in a cooling pipeline of the hydrogen fuel cell, the water pipe is connected with an end cover used for being connected with the cylinder body, the connection part of the end cover and the water pipe is a horn mouth, and a liquid channel used for shunting cooling liquid is arranged at the horn mouth; one side of the end cover facing the cylinder is connected with a filter screen for preventing impurity particles in the cooling liquid from entering the cylinder and simultaneously preventing the positive resin particles and the negative resin particles from flowing out of the cylinder;
the water pipe of the inlet part is used for connecting a cooling liquid pipeline at the upstream of the cylinder body, and the water pipe of the outlet part is used for connecting a cooling liquid pipeline at the downstream of the cylinder body;
the plug-in structure between the separating pieces is as follows:
a plug-in protrusion is arranged at the center of one end of the partition piece along the axial direction, a plug-in groove is arranged at the center of the other end of the partition piece along the axial direction, and the plug-in groove is matched with the plug-in protrusion; adjacent separating pieces are spliced and fixed together with the splicing grooves through splicing bulges.
2. An ion exchanger for removing ions from a liquid according to claim 1, wherein: the two ends of the axis of the separation structure are provided with pore plates for sealing the positive resin particles and the negative resin particles in each runner, through holes are uniformly distributed on the pore plates, and the diameters of the through holes are smaller than those of the positive resin particles and the negative resin particles.
CN202010685006.2A 2020-07-16 2020-07-16 Ion exchanger for removing ions from a liquid Active CN111790459B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010685006.2A CN111790459B (en) 2020-07-16 2020-07-16 Ion exchanger for removing ions from a liquid

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Application Number Priority Date Filing Date Title
CN202010685006.2A CN111790459B (en) 2020-07-16 2020-07-16 Ion exchanger for removing ions from a liquid

Publications (2)

Publication Number Publication Date
CN111790459A CN111790459A (en) 2020-10-20
CN111790459B true CN111790459B (en) 2023-11-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016108866A1 (en) * 2016-05-13 2017-11-16 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Modular ion exchanger
CN209434310U (en) * 2019-01-14 2019-09-24 平原滤清器有限公司 Remove the ion-exchanger of fluid intermediate ion
CN111392816A (en) * 2020-01-21 2020-07-10 杭州祥博传热科技股份有限公司 Deionization device with resin easy to replace
CN111410268A (en) * 2020-01-21 2020-07-14 杭州祥博传热科技股份有限公司 Resin deionization system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016108866A1 (en) * 2016-05-13 2017-11-16 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Modular ion exchanger
CN209434310U (en) * 2019-01-14 2019-09-24 平原滤清器有限公司 Remove the ion-exchanger of fluid intermediate ion
CN111392816A (en) * 2020-01-21 2020-07-10 杭州祥博传热科技股份有限公司 Deionization device with resin easy to replace
CN111410268A (en) * 2020-01-21 2020-07-14 杭州祥博传热科技股份有限公司 Resin deionization system

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