Deionizer with cut-off function

Abstract

The utility model discloses a deionizer with a cut-off function. The deionizer comprises a deionizer and a cut-off part which is detachably arranged at an inlet of the deionizer, the cut-off part comprises a shell with two open ends, a fixed sleeve clamped on the inner wall of the shell and a flow guide frame slidably sleeved in the fixed sleeve; the flow guide frame is of a cylindrical structure with the hollow interior and the hollow side wall part, the top end of the flow guide frame is sealed, an opening is formed in the bottom end of the flow guide frame, and the opening in the bottom end of the flow guide frame, the interior of the flow guide frame and the side wall of the flow guide frame are communicated with one another; the outer wall of the flow guide frame is sleeved with a spring, one end of the spring is connected to the flow guide frame, and the other end of the spring is connected to the fixing sleeve. An inlet of the deionizer abuts against the bottom end of the flow guide frame, and the deionizer is communicated with an opening in the bottom end of the flow guide frame. According to the deionizer, cooling liquid flow can be automatically blocked after the deionizer is disassembled, the liquid leakage phenomenon when the deionizer is replaced can be effectively avoided, disassembly and replacement are convenient, and installation is fast.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling liquid filtration, in particular to a deionizer with a cut-off function. Background Art

[0002] Fuel cell deionizer is an ion exchanger used in fuel cell systems. Its function is to filter out the anions and cations precipitated from the long-term circulation of the coolant in the fuel cell system to ensure the normal operation of the fuel cell.

[0003] Common deionizers are connected to the coolant pipes using hoses and clamps. The entire deionizer must be removed for replacement. Some new deionizers can be replaced by removing the filter element, which simplifies the disassembly and replacement process. However, these deionizers cannot block the circulating coolant during replacement, which will cause a certain risk of leakage and have a low exchange capacity. Utility Model Content

[0004] The utility model aims to provide a deionizer with a cut-off function to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A deionizer with a cut-off function, comprising a deionizer and a cut-off portion detachably arranged at an inlet of the deionizer;

[0007] The cut-off portion comprises a shell with openings at both ends, a fixing sleeve clamped on the inner wall of the shell, and a guide frame slidably sleeved inside the fixing sleeve;

[0008] The guide frame is a columnar structure with a hollow interior and a partially hollow side wall. The top of the guide frame is sealed, and the bottom of the guide frame is provided with an opening. The opening at the bottom of the guide frame, the interior of the guide frame, and the side wall of the guide frame are interconnected.

[0009] A spring is sleeved on the outer wall of the guide frame, one end of the spring is connected to the guide frame, and the other end of the spring is connected to the fixing sleeve;

[0010] The inlet portion of the deionizer abuts against the bottom end of the guide frame, and the deionizer is connected to the opening at the bottom end of the guide frame;

[0011] When the inlet portion of the deionizer abuts against the bottom end of the guide frame, the spring is compressed, and the hollow portion on the side wall of the guide frame is pushed out of the interior of the fixing sleeve, so that the hollow portion on the side wall of the guide frame is connected to the interior of the housing;

[0012] When the inlet portion of the deionizer is separated from the bottom end of the guide frame, the hollow portion on the side wall of the guide frame retracts into the interior of the fixing sleeve under the elastic force of the spring, so that the top end of the guide frame blocks the fixing sleeve.

[0013] Furthermore, a sealing ring is provided at the top end of the guide frame, and the outer diameter of the sealing ring is similar to the inner diameter of the fixing sleeve.

[0014] Furthermore, the deionizer comprises a cylinder with openings at both ends, a filter screen and a filter disc are installed inside the cylinder, end caps are installed at the openings at both ends of the cylinder, and the two end caps are connected to an inlet joint and an outlet joint respectively;

[0015] When the deionizer is connected to the cut-off portion, the inlet connector abuts against the bottom end of the guide frame.

[0016] Furthermore, a rubber ring, a first fixing ring, a rubber ring and a second fixing ring are sequentially sleeved on the inlet joint from front to back, and the second fixing ring is clamped on the inner wall of the shell.

[0017] Furthermore, a U-shaped clamping ring is also provided on the outer shell, and the U-shaped clamping ring is used to insert the deionizer into the cut-off part and tighten the deionizer and the cut-off part when the inlet joint abuts against the bottom end of the guide frame.

[0018] It can be seen from the above technical solutions that, compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model can automatically block the flow of coolant after the deionizer is disassembled, which can effectively avoid leakage when the deionizer is replaced, and has the advantages of convenient disassembly and replacement and quick installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the structure of a deionizer with a cut-off function in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Outer shell; 2. Fixed sleeve; 3. Sealing ring; 4. Spring; 5. Guide frame; 6. Rubber ring; 7. First fixing ring; 8. Second fixing ring; 9. U-shaped retaining ring; 10. Inlet end cover; 11. Filter disc; 12. Cylinder; 13. Filter screen; 14. Outlet end cover. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] See also Figure 1 As shown, the deionizer with a cut-off function provided in this embodiment includes a deionizer and a cut-off portion detachably arranged at the inlet of the deionizer;

[0030] The cut-off portion includes a shell 1 with openings at both ends, a fixing sleeve 2 clamped on the inner wall of the shell 1, and a guide frame 5 slidably sleeved inside the fixing sleeve 2;

[0031] The guide frame 5 is a columnar structure with a hollow interior and a partially hollow side wall. The top of the guide frame 5 is sealed, and an opening is provided at the bottom of the guide frame 5. The opening at the bottom of the guide frame 5, the interior of the guide frame 5, and the side wall of the guide frame 5 are interconnected.

[0032] A spring 4 is sleeved on the outer wall of the guide frame 5, one end of the spring 4 is connected to the guide frame 5, and the other end of the spring 4 is connected to the fixed sleeve 2;

[0033] The inlet portion of the deionizer abuts against the bottom end of the guide frame 5, and the deionizer is connected to the opening at the bottom end of the guide frame 5;

[0034] When the inlet portion of the deionizer abuts against the bottom end of the guide frame 5, the spring 4 is compressed, and the hollow portion on the side wall of the guide frame 5 is pushed out of the interior of the fixing sleeve 2, so that the hollow portion on the side wall of the guide frame 5 is connected to the interior of the housing 1;

[0035] When the inlet portion of the deionizer is separated from the bottom end of the guide frame 5 , under the elastic force of the spring 4 , the hollow portion on the side wall of the guide frame 5 retracts into the interior of the fixing sleeve 2 , so that the top end of the guide frame 5 blocks the fixing sleeve 2 .

[0036] Specifically, the opening at one end of the shell 1 away from the deionizer is connected to the water inlet direction pipeline of the coolant. When the deionizer is normally connected to the cut-off part, the inlet part of the deionizer presses against the guide frame 5, causing the guide frame 5 to move relative to the fixed sleeve 2. The hollow part on the side wall of the guide frame 5 is pushed out of the interior of the fixed sleeve 2, so that the hollow part on the side wall of the guide frame 5 is connected to the interior of the shell 1. The coolant flowing into the interior of the shell 1 can flow in from the hollow part on the side wall of the guide frame 5, and then flow into the interior of the deionizer for filtration.

[0037] Correspondingly, when the deionizer needs to be disassembled, it is only necessary to remove the deionizer. Since the inlet part of the deionizer is no longer against the guide frame 5, under the action of the rebound force of the spring 4, the hollow part on the side wall of the guide frame 5 retracts into the interior of the fixed sleeve 2, and the top of the guide frame 5 blocks the fixed sleeve 2. The coolant will not be able to flow in from the hollow part on the side wall of the guide frame 5, thereby avoiding leakage.

[0038] In this embodiment, a sealing ring 3 is provided at the top end of the guide frame 5 , and the outer diameter of the sealing ring 3 is similar to the inner diameter of the fixed sleeve 2 , so as to further ensure the sealing effect of the guide frame 5 on the fixed sleeve 2 .

[0039] Specifically, the deionizer includes a cylinder 12 with openings at both ends, a filter screen 13 and a filter disc 11 are installed inside the cylinder 12, an inlet end cover 10 and an outlet end cover 14 are installed at the openings at both ends of the cylinder 12, an inlet connector is installed on the inlet end cover 10, and an outlet connector is installed on the outlet end cover 14;

[0040] When the deionizer is connected to the cut-off portion, the inlet joint abuts against the bottom end of the guide frame 5 .

[0041] It should be noted that, in the present embodiment, two filter screens 13 and two filter discs 11 are provided, which are respectively arranged close to the inlet end cover 10 and the outlet end cover 14 , wherein the filter disc 11 is made of PP material and can play the role of filtering and dispersing water.

[0042] Reference Figure 1 The two filter screens 13 and the two filter discs 11 are arranged in the order of “filter disc 11—filter screen 13—filter screen 13—filter disc 11”.

[0043] In this embodiment, a rubber ring 6, a first fixing ring 7, a rubber ring 6 and a second fixing ring 8 are sequentially sleeved on the inlet joint from front to back, and the second fixing ring 8 is clamped on the inner wall of the outer shell 1, wherein the first fixing ring 7 is made of plastic and plays a limiting role, and a clamping block is provided on the second fixing ring 8, and a clamping groove is provided on the inner wall of the outer shell 1. When the deionizer is inserted into the interior of the outer shell 1, the clamping block is clamped into the clamping groove to realize the clamping connection between the second fixing ring 8 and the inner wall of the outer shell 1.

[0044] In this embodiment, a U-shaped clamp ring 9 is further provided on the housing 1, and the U-shaped clamp ring 9 is used to tighten the deionizer and the cut-off portion when the deionizer is inserted into the cut-off portion and the inlet joint abuts against the bottom end of the guide frame 5.

[0045] It should be noted that the U-shaped clamping ring 9 and the fixing sleeve 2 are both made of stainless steel.

[0046] It should be noted that the filter disc 11 and the filter screen 13 at the same end are ultrasonically welded and welded to the inlet end cover 10 or the outlet end cover 14. Specifically, the filter disc 11 and the inlet end cover 10 (or the outlet end cover 14) are fixed by rotary friction welding.

[0047] It should be noted that the outer shell 1 and the cylinder 12 are made of PPS material to ensure the high temperature resistance and deformation resistance of the device, so that the volume structure becomes larger and the exchange capacity is improved to a certain extent.

[0048] It should be noted that the deionizer and the cut-off part are connected in the form of a quick-plug interface.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A deionizer with a cut-off function, characterized in that: It includes a deionizer and a cut-off portion detachably arranged at the inlet of the deionizer; The cut-off portion comprises a shell with openings at both ends, a fixing sleeve clamped on the inner wall of the shell, and a guide frame slidably sleeved inside the fixing sleeve; The guide frame is a columnar structure with a hollow interior and a partially hollow side wall. The top of the guide frame is sealed, and the bottom of the guide frame is provided with an opening. The opening at the bottom of the guide frame, the interior of the guide frame, and the side wall of the guide frame are interconnected. A spring is sleeved on the outer wall of the guide frame, one end of the spring is connected to the guide frame, and the other end of the spring is connected to the fixing sleeve; The inlet portion of the deionizer abuts against the bottom end of the guide frame, and the deionizer is connected to the opening at the bottom end of the guide frame; When the inlet portion of the deionizer abuts against the bottom end of the guide frame, the spring is compressed, and the hollow portion on the side wall of the guide frame is pushed out of the interior of the fixing sleeve, so that the hollow portion on the side wall of the guide frame is connected to the interior of the housing; When the inlet portion of the deionizer is separated from the bottom end of the guide frame, the hollow portion on the side wall of the guide frame retracts into the interior of the fixing sleeve under the elastic force of the spring, so that the top end of the guide frame blocks the fixing sleeve.

2. The deionizer with cut-off function according to claim 1, characterized in that: The top end of the guide frame is provided with a sealing ring, and the outer diameter of the sealing ring is similar to the inner diameter of the fixing sleeve.

3. The deionizer with cut-off function according to claim 1, characterized in that: The deionizer comprises a cylinder with openings at both ends, a filter screen and a filter disc are installed inside the cylinder, an inlet end cover and an outlet end cover are installed at the openings at both ends of the cylinder respectively, an inlet joint is installed on the inlet end cover, and an outlet joint is installed on the outlet end cover; When the deionizer is connected to the cut-off portion, the inlet connector abuts against the bottom end of the guide frame.

4. The deionizer with cut-off function according to claim 3, characterized in that: The inlet joint is sleeved with a rubber ring, a first fixing ring, a rubber ring and a second fixing ring in sequence from front to back, and the second fixing ring is clamped on the inner wall of the shell.

5. The deionizer with cut-off function according to claim 3, characterized in that: The housing is also provided with a U-shaped clamping ring, which is used to insert the deionizer into the cut-off portion and tighten the deionizer and the cut-off portion when the inlet joint abuts against the bottom end of the guide frame.

Images