Filtering device for heating heat exchange unit

Abstract

The utility model discloses a filtering device for a heating heat exchange unit, which relates to the field of filtering devices mounted at input ports of heat exchange devices and comprises a water inlet tee joint, a water inlet elbow is connected to a top opening of the water inlet tee joint, and valves are mounted at the output end of the water inlet tee joint and the output end of the water inlet elbow. The output end of the valve is connected with a filtering mechanism, the output end of the upper filtering mechanism is connected with a water outlet bent pipe, the output end of the lower filtering mechanism is connected with a water outlet tee joint, and a top opening of the water outlet tee joint is connected with the output end of the water outlet bent pipe; the filtering mechanism comprises a fixed sleeve and a movable sleeve, and the fixed sleeve and the movable sleeve are in a hollow annular structure after being in butt joint. By arranging the limiting groove, the containing groove, the spring and the limiting block, the filter element can be conveniently positioned and mounted, and the filter element can be conveniently taken out by inserting a tool into the limiting groove, so that the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to install in the filter device field of heat exchange device input port, specifically a kind of filter device for heating heat exchange unit. BACKGROUND

[0002] There are many types of heat exchange units, such as plate heat exchangers. Before the hot flow medium enters the inside of the heat exchange unit, the hot flow medium passes through the filter device to filter the impurities contained in the hot flow medium.

[0003] In the prior art, in order to achieve the purpose of maintenance without stopping, a temporary flow path is provided to maintain the efficiency of heating and heat exchange. During the maintenance and replacement of the filter element of the existing filter device, the surface of the filter element may be scaled or corroded due to water infiltration, which may cause problems such as difficulty in removing the filter element. In addition, during installation, the filter element may not be installed evenly, which may cause water leakage gaps. SUMMARY

[0004] The utility model aims at solving the problems raised in the background art and provides a filter device for a heating heat exchange unit.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a filter device for a heating heat exchange unit, comprising a water inlet tee, a water inlet elbow connected to the top opening of the water inlet tee, a valve installed at the output end of the water inlet tee and the water inlet elbow, a filter mechanism connected to the output end of the valve, a water outlet elbow connected to the output end of the upper filter mechanism, a water outlet tee connected to the output end of the lower filter mechanism, and the top opening of the water outlet tee connected to the output end of the water outlet elbow.

[0006] The filter mechanism comprises a fixed sleeve and a movable sleeve, which are in a hollow ring structure after being connected, the outer periphery of the movable sleeve is consistent with the outer periphery of the fixed sleeve, a sealing ring is installed at the connection position of the fixed sleeve and the movable sleeve, and a handle is welded to the outside of the movable sleeve.

[0007] As a further scheme of the utility model, the filter mechanism further comprises a limiting convex ring integrally formed on the inner periphery of the water inlet elbow and a filter element inserted into the inner wall of the fixed sleeve and the movable sleeve, and the distance between the two limiting convex rings is equal to the length of the filter element.

[0008] As a further scheme of the utility model: the filtering mechanism further includes a clamping groove opened in the inner wall of the fixed sleeve and the inner wall of the moving sleeve, the filter core is integrally formed with a clamping plate on the outer periphery, a limiting groove is opened in the inside of the clamping plate, a containing groove is opened in the inside of the fixed sleeve at the top of the clamping groove, a limiting block is slidably connected in the inner wall of the containing groove and penetrates the top end of the inner wall of the clamping groove, a spring is fixedly installed between the top of the limiting block and the top end of the inner wall of the containing groove, and the limiting block in the reset state is in a half columnar structure at one end of the inner cavity of the clamping groove.

[0009] As a further scheme of the utility model: a first butt plate is integrally formed on the upper and lower ends of the outer periphery of the fixed sleeve, a second butt plate is integrally formed on the upper and lower ends of the outer periphery of the moving sleeve, a stud is integrally formed on the butt end face of the fixed sleeve and protrudes outward, and a butt hole is opened in the inside of the second butt plate and is in butt joint with the stud.

[0010] As a further scheme of the utility model: the two ends of the filter core are in a porous structure, and a filter layer is filled in the inner cavity of the filter core.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. By setting the limiting groove, the containing groove, the spring and the limiting block, the positioning and installation of the filter core can be facilitated, the filter core can be taken out by inserting a tool into the limiting groove, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a filter core installation schematic view of the utility model;

[0015] Figure 3 It is a fixed sleeve installation schematic view of the utility model;

[0016] Figure 4 It is a filter core structural schematic view of the utility model;

[0017] Figure 5 It is a butt block installation schematic view of the utility model.

[0018] In the drawing: 1, water inlet tee joint; 2, water inlet elbow; 3, valve; 4, fixed sleeve; 5, moving sleeve; 6, handle; 7, water outlet elbow; 8, water outlet tee joint; 9, first butt plate; 10, second butt plate; 11, butt hole; 12, stud; 13, clamping groove; 14, filter core; 15, clamping plate; 16, limiting convex ring; 17, limiting groove; 18, containing groove; 19, spring; 20, limiting block. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] Please refer to Figures 1-5 In the embodiments of the present application, a filtering device for a heating heat exchange unit comprises a water inlet tee joint 1, a water inlet elbow 2 connected to the top opening of the water inlet tee joint 1, a valve 3 installed at the output end of the water inlet tee joint 1 and the water inlet elbow 2, a filtering mechanism connected to the output end of the valve 3, a water outlet elbow 7 connected to the output end of the filtering mechanism located at the top, a water outlet tee joint 8 connected to the output end of the filtering mechanism located at the bottom, and the top opening of the water outlet tee joint 8 is connected to the output end of the water outlet elbow 7. The filtering mechanism comprises a fixed sleeve 4 and a movable sleeve 5, and the fixed sleeve 4 and the movable sleeve 5 are in a hollow annular structure after being butted. The outer peripheral opening of the movable sleeve 5 is consistent with the fixed sleeve 4, and a sealing ring is installed at the butting position of the fixed sleeve 4 and the movable sleeve 5. A handle 6 is welded to the outer side of the movable sleeve 5.

[0021] In the present embodiment, the device is installed at the input end of the heat exchange assembly. In the normal state, the heat medium enters the valve 3 connected to the water inlet tee joint 1 through the water inlet tee joint 1, and then passes through the filtering mechanism connected to the valve 3. The heat flow medium flows into the water outlet tee joint 8 through the filtering mechanism. After the filtering mechanism connected to the water outlet tee joint 8 is used for a long time, the valve 3 located at the bottom is closed and the valve 3 located at the top is opened when the filtering mechanism is blocked. At this time, the heat flow medium enters the filtering mechanism located at the top through the water inlet elbow 2 and the valve 3 located at the top, and then flows into the water outlet tee joint 8 through the water outlet elbow 7.

[0022] At this time, the movable sleeve 5 and the fixed sleeve 4 are opened, and the filter element 14 can be disassembled and replaced after the movable sleeve 5 is disassembled. After the replacement is completed, the movable sleeve 5 is reinstalled, the valve 3 located at the top is closed, and the valve 3 located at the bottom is opened. This design can realize non-stop operation when replacing the filter element 14, and ensures the efficiency of heat exchange.

[0023] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5The filtration mechanism also includes a limiting protrusion ring 16 integrally formed on the inner circumference of the inlet bend 2 and a filter element 14 inserted into the inner wall of the fixed sleeve 4 and the movable sleeve 5. The distance between the two limiting protrusion rings 16 is equal to the length of the filter element 14. The filtration mechanism also includes a slot 13 opened on the inner wall of the fixed sleeve 4 and the inner wall of the movable sleeve 5. A retaining plate 15 is integrally formed on the outer circumference of the filter element 14. A limiting groove 17 is opened inside the retaining plate 15. A receiving groove 18 is opened at the top of the slot 13 inside the fixed sleeve 4. A limiting block 20 that extends through to the top of the inner wall of the slot 13 is slidably connected to the inner wall of the receiving groove 18. A spring 19 is fixedly installed between the top of the limiting block 20 and the top of the inner wall of the receiving groove 18. The limiting block 20 in the reset state is located at one end of the inner cavity of the slot 13 and has a semi-cylindrical structure.

[0024] In this embodiment: after moving sleeve 5 during disassembly, a tool is inserted into the limiting groove 17. Then, by pulling the tool, the tool pulls the filter element 14 through the limiting groove 17. The moving filter element 14 drives another clamping plate 15 to move, and the other clamping plate 15 drives the limiting groove 17 on it to move. The moving limiting groove 17 presses against the semi-cylindrical outer wall of the limiting block 20. At this time, the limiting block 20 is forced to move upward along the outer wall of the receiving groove 18. The upwardly moving limiting block 20 presses against the spring 19 until the limiting block 20 is misaligned with the limiting groove 17. At this time, the filter element 14 can be pulled out.

[0025] After replacing the filter element 14, the new filter element 14 is reinserted. The filter element 14 drives a retaining plate 15 to be inserted into the retaining groove 13 of the fixing sleeve 4. During this process, the retaining plate 15 presses against the limiting block 20. The compressed limiting block 20 moves upward and moves upward along the inner wall of the receiving groove 18. At this time, the spring 19 is compressed again until the limiting groove 17 and the limiting block 20 are aligned in the vertical direction. At this time, the spring 19 returns to its original position and pushes the limiting block 20 into the limiting groove 17. This method can ensure that the filter element 14 will not fall off due to lack of support after installation.

[0026] Please refer to this carefully. Figure 2 and Figure 3 The upper and lower ends of the outer periphery of the fixed sleeve 4 are integrally formed with a first docking plate 9, and the upper and lower ends of the outer periphery of the movable sleeve 5 are integrally formed with a second docking plate 10. The docking end face of the fixed sleeve 4 is integrally formed with an outwardly protruding stud 12, and the interior of the second docking plate 10 is provided with a docking hole 11 for docking with the stud 12.

[0027] In this embodiment: After the filter element 14 is installed, the movable sleeve 5 is connected to the fixed sleeve 4. The movable sleeve 5 drives the docking hole 11 to dock with the stud 12. When the two are fully connected, the nut is tightened on the outer wall of the stud 12, and the installation is completed.

[0028] Please refer to this carefully. Figure 4The filter element 14 has a porous structure at both ends, and the inner cavity of the filter element 14 is filled with a filter layer.

[0029] In this embodiment: the filter layer (e.g., activated carbon layer) filters out impurities contained in the heat flow medium during the process of the heat flow medium passing through the filter element 14, ensuring that the heat flow medium in the heat exchange device does not contain large particulate impurities.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filtration device for a heating heat exchanger unit, comprising an inlet tee (1), characterized in that, The top opening of the inlet tee (1) is connected to the inlet bend (2). Both the output end of the inlet tee (1) and the output end of the inlet bend (2) are equipped with valves (3). The output end of the valve (3) is connected to a filter mechanism. The output end of the filter mechanism located above is connected to the outlet bend (7). The output end of the filter mechanism located below is connected to the outlet tee (8). The top opening of the outlet tee (8) is connected to the output end of the outlet bend (7). The filter mechanism includes a fixed sleeve (4) and a movable sleeve (5). The fixed sleeve (4) and the movable sleeve (5) form a hollow annular structure after docking. The outer peripheral opening of the movable sleeve (5) matches the outer peripheral opening of the fixed sleeve (4). A sealing ring is installed at the docking position of the fixed sleeve (4) and the movable sleeve (5). A handle (6) is welded to the outer side of the movable sleeve (5).

2. The filtration device for a heating heat exchanger unit according to claim 1, characterized in that, The filtration mechanism also includes a limiting protrusion ring (16) integrally formed on the inner circumference of the water inlet bend (2) and a filter element (14) inserted into the inner wall of the fixed sleeve (4) and the movable sleeve (5). The distance between the two limiting protrusion rings (16) is equal to the length of the filter element (14).

3. A filtration device for a heating heat exchanger unit according to claim 2, characterized in that, The filtration mechanism further includes a slot (13) formed on the inner wall of the fixed sleeve (4) and the inner wall of the movable sleeve (5). The outer circumference of the filter element (14) is integrally formed with a card plate (15). A limiting groove (17) is formed inside the card plate (15). A receiving groove (18) is formed at the top of the slot (13) inside the fixed sleeve (4). A limiting block (20) is slidably connected to the inner wall of the receiving groove (18) and extends to the top of the inner wall of the slot (13). A spring (19) is fixedly installed between the top of the limiting block (20) and the top of the inner wall of the receiving groove (18). In the reset state, the limiting block (20) is located at one end of the inner cavity of the slot (13) in a semi-cylindrical structure.

4. A filtration device for a heating heat exchange unit according to claim 3, characterized in that, The fixed sleeve (4) has a first docking plate (9) integrally formed at both the upper and lower ends of its outer periphery, and the movable sleeve (5) has a second docking plate (10) integrally formed at both the upper and lower ends of its outer periphery. The fixed sleeve (4) has an outwardly protruding stud (12) integrally formed on its docking end face, and the second docking plate (10) has a docking hole (11) inside for docking with the stud (12).

5. A filtration device for a heating heat exchanger unit according to claim 4, characterized in that, The filter element (14) has a porous structure at both ends, and the inner cavity of the filter element (14) is filled with a filter layer.

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