Basket filter of heating medium pump

Abstract

The invention discloses a basket filter of a heating medium pump, which comprises a filter shell, a shell cover and a filter basket, two sides of the filter shell are respectively provided with a water inlet port and a water outlet port, the bottom of the filter shell is provided with a pollution discharge port, the filter basket is detachably arranged in the filter shell, the shell cover is connected to a top port of the filter shell, and the filter basket is detachably arranged in the filter shell. A first through hole is formed in the bottom of the filter basket, a residue discharging assembly used for controlling the first through hole to be blocked and opened is arranged on the shell cover and moves up and down along the axis of the first through hole, and a residue scraping assembly used for scraping filter residues on the inner wall of the filter basket is further rotationally arranged on the shell cover. A supporting plate is arranged at the bottom in a cavity of the filter shell and divides the filter shell into an upper cavity and a lower cavity, the lower cavity is a slag containing cavity, and the filter basket is located in the upper cavity. According to the invention, the filter basket can be cleaned and slag can be discharged under the conditions of not stopping working and not dismounting the filter, so that the cleaning work of the filter is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and particularly to a basket filter for a heat medium pump. Background Art

[0002] A basket filter is a small device for removing a small amount of solid matter contained in a liquid, which can protect compressors, pumps, other equipment, instruments, etc. from working properly; it is also a small device for improving product purity and purifying gas. Basket filters are widely used in industries such as petroleum, chemical industry, chemical fiber, medicine, and food. It is mainly used in pipelines to process high-precision liquids inside the pipe.

[0003] In the direct spinning conveying system of filament melt, heat medium tracing is required. The heat medium is mainly hydrogenated terphenyl. Before entering the heat medium pump, the heat medium needs to be filtered, and a basket filter is also required for this process. In the existing filter, the filter basket is usually arranged in the housing. In order to avoid blockage caused by the accumulation of filter residues, it is necessary to regularly remove the upper cover to take out the filter basket for cleaning. For example, the utility model with the publication number CN208511995U discloses a new type of basket filter, which includes a filter housing, a housing cover, a filter core component, and a partition. The housing cover is arranged on the upper part of the filter housing. Water inlets and water outlets are respectively arranged on both sides of the filter housing. A water inlet flange is arranged on the water inlet, and a water outlet flange is arranged on the water outlet. The filter core component is located inside the filter housing. Similarly, when the filter residues accumulate and cause blockage, the filter residues cannot be discharged through the sewage outlet, and it is necessary to stop the filtering work, remove the housing cover to take out the filter core component, clean it and then put it back and install the housing cover again. Frequent disassembly and assembly of the filter have a large labor intensity and a long operation time, seriously affecting the filtering operation. To overcome this technical problem, the present invention provides a basket filter for a heat medium pump. Summary of the Invention

[0004] The purpose of the present invention is to provide a basket filter for a heat medium pump, which enables the cleaning and discharging of filter residues without stopping work and disassembling the filter, thus facilitating the cleaning work of the filter.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A basket filter for a heat medium pump, comprising a filter housing, a housing cover and a filter basket. An inlet port and an outlet port are respectively arranged on both sides of the filter housing, and a sewage discharge port is arranged at the bottom of the filter housing. The filter basket is detachably arranged in the filter housing, and the housing cover is connected to the top port of the filter housing. A first through hole is arranged at the bottom of the filter basket, and a slag discharge assembly for controlling the blocking and opening of the first through hole is arranged on the housing cover. The slag discharge assembly moves up and down along the axis of the first through hole. A slag scraping assembly for scraping the filter residue on the inner wall of the filter basket is also rotatably arranged on the housing cover. A support plate is arranged at the bottom of the inner cavity of the filter housing to divide the filter housing into upper and lower chambers. Among them, the lower chamber is a slag holding chamber, and the filter basket is located in the upper chamber. A second through hole is arranged at the center of the support plate, and the first through hole, the second through hole and the sewage discharge port correspond to each other.

[0007] Further, an elliptical ring plate is arranged inside the filter housing, and the filter basket is inserted on the elliptical ring plate. The filter housing and the housing cover are connected by screws, and a gasket is arranged between the filter housing and the housing cover.

[0008] Further, the bottom of the filter basket is conical and a first annular magnet is fixedly arranged on the bottom surface of the filter basket, and a second annular magnet is fixedly arranged on the support plate. Both the first annular magnet and the second annular magnet are concentrically arranged with the second through hole. When the filter basket is inserted on the elliptical ring plate, the first annular magnet and the second annular magnet are in contact and adsorbed.

[0009] Further, the slag discharge assembly includes a screw sleeve, a lifting rod and a plug. The screw sleeve is arranged through the center of the housing cover. The upper part of the lifting rod is provided with threads and the upper part of the lifting rod is threadedly connected with the screw sleeve. A turning handle is arranged at the top end of the lifting rod, and a plug for blocking the first through hole is arranged at the bottom end. The plug is frustum-shaped.

[0010] Further, two limit rings are arranged on the lifting rod, and the threads on the lifting rod are located between the two limit rings. The limit rings are respectively located above and below the housing cover. Among them, when the upper limit ring contacts the screw sleeve, the plug blocks the first through hole.

[0011] Further, a plurality of reinforcing ribs are connected between the support plate and the bottom surface of the filter housing.

[0012] Further, the slag scraping assembly includes a rotating ring and a vertical rod. The rotating ring is rotatably arranged on the bottom surface of the housing cover. A plurality of vertical rods are arranged at the bottom of the rotating ring, and the vertical rods extend downward and extend into the filter basket. A brush is arranged at the lower part of the vertical rod, and the brush contacts the inner wall of the filter basket.

[0013] Further, an arc-shaped strip hole is provided on the shell cover, and a limiting rail groove is further provided on the bottom surface of the shell cover. The limiting rail groove is circular, and the rotating ring is rotatably arranged in the limiting rail groove. A rotating handle is arranged on the upper part of the rotating ring, and the rotating handle passes through the arc-shaped strip hole.

[0014] Further, the number of the vertical rods is 4, and a fork-shaped frame is connected between the vertical rods. A stabilizing sleeve is arranged in the middle of the fork-shaped frame, and the lifting rod passes through the stabilizing sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The present invention is provided with a slag discharging component and a slag scraping component on the shell cover. The slag scraping component includes a rotating ring and a vertical rod, and a brush contacting the inner wall of the filter basket is arranged at the bottom of the vertical rod. During the rotation of the rotating ring, the brush cleans the inner wall of the filter basket to brush off the filter residue on the inner wall. When the filter residue deposits at the bottom of the filter basket, the lifting rod is rotated to make the plug leave the first through hole, so as to discharge the filter residue. Through this, the cleaning and discharging of the filter basket are realized without stopping the filtering work and disassembling the filter, which facilitates the cleaning work of the filter.

[0017] A support plate with a through hole is arranged in the filter housing. A second annular magnet is arranged on the support plate, and a first annular magnet is arranged at the bottom of the filter basket. When the filter basket is installed, the two magnets are adsorbed, so as to ensure the tightness and stability between the filter basket and the support plate, and prevent the filter residue from flowing out to the outside of the filter basket due to the gap between the filter basket and the bottom of the support plate caused by the water flow fluctuation in the filter housing during the slag cleaning process, thereby affecting the filtering quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0019] Figure 2 It is a schematic diagram after the first through hole of the filter is opened.

[0020] Figure 3 It is a schematic longitudinal section diagram of the filter basket.

[0021] Figure 4 It is a schematic connection diagram of the shell cover and the slag scraping component.

[0022] Figure 5 It is Figure 4 a schematic diagram in another direction of

[0023] Figure 6 It is Figure 4 a disassembled schematic diagram of

[0024] Figure 7 It is a schematic diagram of the support plate structure.

[0025] In the figure, 1 - shell cover, 1a - limit rail groove, 1b - arc-shaped strip hole, 2 - filter housing, 3 - water inlet port, 4 - water outlet port, 5 - filter basket, 5a - first through hole, 7 - sewage discharge port, 8 - screw sleeve, 9 - turning handle, 10 - limit ring, 11 - lifting rod, 12 - rotating handle, 13 - vertical rod, 14 - brush, 15 - rotating ring, 16 - fork-shaped frame, 17 - stabilizing sleeve, 18 - plug, 19 - first annular magnet, 20 - second annular magnet, 21 - support plate, 21a - second through hole, 22 - reinforcing rib, 23 - slag holding cavity, 24 - washer. Detailed implementation mode

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the following further details the invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please refer to Figure 1-2 As shown, the present invention provides a basket filter for a heat medium pump, including a filter housing 2, a shell cover 1 and a filter basket 5. Preferably, the filter basket 5 is an inclined port type filter basket 5. A water inlet port 3 and a water outlet port 4 are respectively arranged on both sides of the filter housing 2. Flanges are arranged on both the water inlet port 3 and the water outlet port 4. A sewage discharge port 7 is arranged at the bottom of the filter housing 2. The filter basket 5 is detachably arranged in the filter housing 2. An annular gap should be left between the side wall of the filter basket 5 and the inner wall of the filter housing 2. The shell cover 1 is connected to the top port of the filter housing 2. A slag discharging assembly for controlling the blocking and opening of the first through hole 5a is arranged on the shell cover 1. The slag discharging assembly moves up and down along the axis of the first through hole 5a, so as to facilitate the discharge of the filter slag deposited in the filter basket 5. A slag scraping assembly for scraping the filter slag on the inner wall of the filter basket 5 is also rotatably arranged on the shell cover 1. A support plate 21 is arranged at the bottom of the cavity of the filter housing 2 to divide the filter housing 2 into upper and lower two chambers. Among them, the lower chamber is a slag holding cavity 23, and the filter basket 5 is located in the upper chamber. It should be noted that there should be no gap between the bottom surface of the filter basket 5 and the support plate 21, so as to prevent the filter slag from flowing out through the bottom gap and then flowing into the water outlet port 4 during slag cleaning. A second through hole 21a is arranged at the center of the support plate 21. The first through hole 5a, the second through hole 21a and the sewage discharge port 7 correspond to each other. Preferably, in this embodiment, both the first through hole 5a and the second through hole 21a are circular holes. During slag discharging, the filter slag enters the slag holding cavity 23 through the first through hole 5a and the second through hole 21a, and finally discharges from the sewage discharge port 7.

[0028] Optionally, referring to Figure 7 As shown, a plurality of reinforcing ribs 22 are connected between the support plate 21 and the bottom surface of the filter housing 2, so as to improve the strength of the support plate 21.

[0029] In this embodiment, an elliptical ring plate 6 is disposed inside the filter housing 2. The elliptical ring plate 6 is welded to the inner wall of the filter housing 2 with no gap in the weld. The elliptical ring plate 6 is inclined to adapt to the inclined-port filter basket 5. The filter basket 5 is inserted on the elliptical ring plate 6. The filter housing 2 and the shell cover 1 are connected by screws, and a washer 24 is disposed between the filter housing 2 and the shell cover 1.

[0030] Further, referring to Figure 3 As shown, the bottom of the filter basket 5 is conical, and the conical design facilitates the discharge of filter residues. In addition, in order to prevent a gap between the bottom surface of the filter basket 5 and the support plate 21, a first annular magnet 19 is fixedly disposed on the bottom surface of the filter basket 5, and a second annular magnet 20 is fixedly disposed on the support plate 21. The first annular magnet 19 and the second annular magnet 20 are both concentrically disposed with the second through hole 21a. When the filter basket 5 is inserted on the elliptical ring plate 6, the first annular magnet 19 and the second annular magnet 20 are in contact and adsorbed with each other. By such a setting, a gap between the bottom surface of the filter basket 5 and the support plate 21 is prevented. When the water flow in the filter housing 2 fluctuates greatly, the filter basket 5 can also be prevented from shaking and generating voids due to the water flow fluctuation by the adsorption of the magnets.

[0031] Referring to Figure 4-5 As shown, for the slag discharge assembly, a further solution of the present invention is that the slag discharge assembly includes a screw sleeve 8, a lifting rod 11 and a plug 18. The screw sleeve 8 is disposed through the center of the shell cover 1. The upper part of the lifting rod 11 is provided with a thread and the upper part of the lifting rod 11 is threadedly connected to the screw sleeve 8, so that the lifting rod 11 can perform a lifting operation. A turning handle 9 is disposed at the top end of the lifting rod 11, and a plug 18 for blocking the first through hole 5a is disposed at the bottom end. The plug 18 is in a frustum shape, and the frustum-shaped plug 18 is in linear contact with the first through hole 5a. While blocking the first through hole 5a, the contact surface with the first through hole 5a is reduced, preventing the plug 18 from being stuck too tightly with the first through hole 5a.

[0032] More specifically, two limiting rings 10 are disposed on the lifting rod 11. The thread on the lifting rod 11 is located between the two limiting rings 10. In addition, the other parts of the lifting rod 11 are all smooth sections. The limiting rings 10 are respectively located above and below the shell cover 1. Among them, when the upper limiting ring 10 contacts the screw sleeve 8, the plug 18 blocks the first through hole 5a, thereby indicating the blocking state of the plug 18 and the first through hole 5a. By providing the two limiting rings 10, the lifting stroke of the lifting rod 11 is controlled, making the control process more accurate and timely.

[0033] Referring to Figure 6As shown in the figure, for the slag scraping assembly, a further solution of the present invention is that the slag scraping assembly includes a rotating ring 15 and a vertical rod 13. The rotating ring 15 is rotatably arranged on the bottom surface of the shell cover 1. A plurality of vertical rods 13 are arranged at the bottom of the rotating ring 15. The vertical rods 13 extend downward and extend into the filter basket 5. A brush 14 is arranged at the lower part of the vertical rod 13, and the brush 14 is in contact with the inner wall of the filter basket 5. The rotation of the rotating ring 15 can adopt an electric drive mode or a manual drive mode. The following is an embodiment of the manual drive provided by the present invention:

[0034] An arc-shaped slot 1b is provided on the shell cover 1, and a limiting rail groove 1a is further provided on the bottom surface of the shell cover 1. The limiting rail groove 1a is circular, and the rotating ring 15 is rotatably arranged in the limiting rail groove 1a. A rotating handle 12 is arranged on the upper part of the rotating ring 15, and the rotating handle 12 is arranged through the arc-shaped slot 1b. In the actual operation process, only by rotating the rotating handle 12, the brush 14 can be used to brush the inner wall of the filter basket 5.

[0035] For the electric drive mode, an internal tooth structure can be arranged on the inner circle of the rotating ring 15. A motor is arranged on the shell cover 1, and a gear is arranged on the motor. The gear meshes with the internal teeth of the rotating ring 15, and the electric drive of the rotating ring 15 can be realized through this structure.

[0036] It should be noted that the arc length of the arc-shaped slot 1b needs to be determined according to the number of vertical rods 13. For example, in this embodiment, the number of vertical rods 13 is 4, then the arc length of the arc-shaped slot 1b is 1 / 4 of the circular arc, so that the brush 14 can brush the entire inner wall of the filter basket 5 during the stroke of the rotating handle 12 in the arc-shaped slot 1b.

[0037] Optionally, a fork-shaped frame 16 is connected between the vertical rods 13. A stabilizing sleeve 17 is arranged in the middle of the fork-shaped frame 16, and the lifting rod 11 is arranged through the stabilizing sleeve 17, thereby improving the stability of the lifting rod 11.

[0038] The working process of the present invention is that when filtering, the liquid enters from the water inlet port 3 and flows out from the water outlet port 4. When it is necessary to clean the filter residue deposited and attached in the filter basket 5, only need to rotate the rotating handle 12 along the arc-shaped slot 1b, and the filter residue on the inner wall of the filter basket 5 can be brushed off by the brush 14. Then, only need to rotate the rotating handle 9 to lift the lifting rod 11, and the plug 18 leaves the first through hole 5a. At this time, the filter residue is discharged from the sewage port 7 through the first through hole 5a. This process does not require disassembling the filter and does not require stopping the filtering work, which facilitates the cleaning work of the filter.

[0039] As used in this specification, the terms "one embodiment", "another embodiment", "embodiment", "preferred embodiment", etc. refer to specific features, structures, or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure, or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure, or characteristic in combination with other embodiments also fall within the scope of the present invention.

[0040] Although the present invention has been described herein with reference to various illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and embodiments that will fall within the scope of the principles disclosed in this application. More specifically, within the scope of the present application's disclosure, the drawings, and the claims, various modifications and improvements can be made to the components or layout of the subject combination layout. In addition to the modifications and improvements to the components or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A basket filter for a heat medium pump, comprising a filter housing (2), a housing cover (1) and a filter basket (5), wherein a water inlet port (3) and a water outlet port (4) are respectively arranged on both sides of the filter housing (2), and a sewage discharge port (7) is arranged at the bottom of the filter housing (2), the filter basket (5) is detachably arranged in the filter housing (2), and the housing cover (1) is connected to the top port of the filter housing (2), characterized in that: The filter basket (5) is provided with a first through hole (5a) at the bottom, and a slag discharge assembly for controlling the blocking and opening of the first through hole (5a) is provided on the shell cover (1). The slag discharge assembly moves up and down along the axis of the first through hole (5a). The shell cover (1) is also rotatably provided with a slag scraping assembly for scraping off filter residues on the inner wall of the filter basket (5). A support plate (21) is provided at the bottom of the filter housing (2) cavity to divide the filter housing (2) into two upper and lower chambers, wherein the lower chamber is a slag containing chamber (23), and the filter basket (5) is located in the upper chamber. A second through hole (21a) is provided at the center of the support plate (21), and the first through hole (5a), the second through hole (21a) and the sewage discharge port (7) correspond to each other.

2. The basket filter of a heat medium pump according to claim 1, characterized in that: An elliptical ring plate (6) is arranged inside the filter housing (2), and a filter basket (5) is inserted on the elliptical ring plate (6). The filter housing (2) and the housing cover (1) are connected by screws, and a gasket (24) is arranged between the filter housing (2) and the housing cover (1).

3. The basket filter of a heat medium pump according to claim 1, characterized in that: The bottom of the filter basket (5) is conical, and a first annular magnet (19) is fixedly arranged on the bottom surface of the filter basket (5), and a second annular magnet (20) is fixedly arranged on the support plate (21). The first annular magnet (19) and the second annular magnet (20) are both arranged concentrically with the second through hole (21a). When the filter basket (5) is inserted into the elliptical ring plate (6), the first annular magnet (19) and the second annular magnet (20) are in contact and adsorbed.

4. The basket filter of a heat medium pump according to claim 1, characterized in that: The slag discharge assembly comprises a screw sleeve (8), a lifting rod (11) and a plug (18); the screw sleeve (8) is arranged through the center of the shell cover (1); the upper part of the lifting rod (11) is provided with a thread and the upper part of the lifting rod (11) is threadedly connected to the screw sleeve (8); the top end of the lifting rod (11) is provided with a rotating handle (9); the bottom end is provided with a plug (18) for sealing the first through hole (5a); the plug (18) is in a truncated cone shape.

5. The basket filter of a heat medium pump according to claim 4, characterized in that: The lifting rod (11) is provided with two limiting rings (10), the thread on the lifting rod (11) is located between the two limiting rings (10), and the limiting rings (10) are respectively located above and below the shell cover (1), wherein when the upper limiting ring (10) contacts the threaded sleeve (8), the plug (18) blocks the first through hole (5a).

6. The basket filter of a heat medium pump according to claim 1, characterized in that: A plurality of reinforcing ribs (22) are connected between the support plate (21) and the bottom surface of the filter housing (2).

7. The basket filter of a heat medium pump according to claim 1, characterized in that: The scraper assembly comprises a rotating ring (15) and a vertical rod (13). The rotating ring (15) is rotatably arranged on the bottom surface of the shell cover (1). A plurality of vertical rods (13) are arranged at the bottom of the rotating ring (15). The vertical rods (13) extend downward and extend into the filter basket (5). A brush (14) is arranged at the lower part of the vertical rod (13). The brush (14) contacts the inner wall of the filter basket (5).

8. The basket filter of a heat medium pump according to claim 7, characterized in that: The shell cover (1) is provided with an arc-shaped strip hole (1b) and a limit rail groove (1a) is also provided on the bottom surface of the shell cover (1); the limit rail groove (1a) is annular and a rotating ring (15) is rotatably arranged in the limit rail groove (1a); a rotating handle (12) is provided on the upper part of the rotating ring (15), and the rotating handle (12) is inserted into the arc-shaped strip hole (1b).

9. The basket filter of a heat medium pump according to claim 7, characterized in that: The number of the vertical rods (13) is four, and a fork-shaped frame (16) is connected between the vertical rods (13). A stabilizing sleeve (17) is provided in the middle of the fork-shaped frame (16), and the lifting rod (11) is inserted into the stabilizing sleeve (17).

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