Two-stage high-efficiency filter

Abstract

The utility model belongs to the field of pipeline filtration, and particularly relates to a two-stage high-efficiency filter which comprises a filtration pipeline assembly, flow control valves and a pressure gauge, the filtration pipeline assembly is of a pipeline-shaped structure, the two ends of the filtration pipeline assembly are respectively connected with the flow control valves through pipelines, and the pressure gauge is connected with the flow control valves. The pressure gauges are installed on pipelines, connected with the flow control valves, of the filtering pipeline assembly respectively, a first filtering element and a second filtering element are rotationally connected into the filtering pipeline assembly, and the two filtering elements are arranged in an attached mode; a shell used for providing a space for replacing the second filter element is fixedly connected to the lower part of the filter pipeline assembly; according to the device, when the filtering assembly is replaced and maintained, operation of the thermodynamic system does not need to be stopped, when the front working filter element is replaced, the temporary filtering effect on the pipeline is achieved through the rear temporary filter element, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline filtering, in particular to a double-stage high-efficiency filter. Background Art

[0002] Pipeline filtration is an important link in the thermal system. Its main function is to ensure the cleanliness of the heating medium and prevent impurities, rust, sediments, etc. in the pipeline from damaging the heating system, thereby ensuring the efficient operation of the system and extending the service life of the equipment. Most of the existing filtering devices need to shut down the pipeline when the pipeline needs to be repaired or the filter device needs to be repaired, cleaned, and replaced. Then the parts that need to be repaired are replaced. After the repair is completed, the parts are installed and the system is restored. This practice wastes time and also affects the operation of the thermal system and the user experience.

[0003] In view of the above problems, a double-stage high-efficiency filter is designed specifically so that the thermal system can remain online during replacement and maintenance. Utility Model Content

[0004] The utility model aims at the above-mentioned problems and specifically designs a double-stage high-efficiency filter. When the filter assembly is replaced and repaired, the device does not need to stop the operation of the thermal system. When the front working filter element is replaced, the temporary filter element at the rear can temporarily filter the pipeline, thereby improving the user experience, reducing the number of restarts of the thermal system, and reducing damage to the thermal system.

[0005] To achieve the above-mentioned purpose, the utility model provides a two-stage high-efficiency filter, including: a filter pipe assembly, a flow control valve and a pressure gauge, the filter pipe assembly is a pipeline-shaped structure, the two ends of the filter pipe assembly are respectively connected to the flow control valve through pipelines, the pressure gauge is respectively installed on the pipelines connecting the filter pipe assembly and the flow control valve, the interior of the filter pipe assembly is rotatably connected with a first filter element and a second filter element, the two filter elements are fitted together, and a shell for providing a space for replacing the second filter element is fixedly connected to the bottom of the filter pipe assembly.

[0006] Through the above method, the first filter element is located behind the second filter element, and the second filter element plays the main filtering role. Most impurities accumulate on the second filter element. When a large difference in the values ​​of the two pressure gauges is observed, the second filter element can be replaced, and the first filter element plays a temporary filtering effect.

[0007] Furthermore, the filter pipe assembly also includes a transfer device, which is installed inside the shell, and the upper part of the transfer device is detachably connected to the lower part of the second filter element.

[0008] Furthermore, the transfer device includes a first rotating device and a second rotating device, wherein the first rotating device is installed inside the housing and is detachably connected to the bottom of the second filter core, and one end of the second rotating device is connected to the side wall of the housing, and the other end is rotatably connected to the first rotating device. The first rotating device can rotate the second filter core horizontally so that the second filter core can be vertically aligned with the housing, and the second rotating device can rotate the second filter core vertically so that the second filter core can be rotated to the inside of the housing.

[0009] Furthermore, the first rotating device includes: a connecting rod, a cross positioning block and a handle, the top of the connecting rod is plugged into the bottom of the second filter element, the bottom of the connecting rod is a clamping block, the bottom of the cross positioning block is fixedly connected with the handle, the handle is located outside the housing, and the clamping block is adapted to the groove on the cross positioning block. When the cross positioning block rotates horizontally, it can drive the second filter element to rotate horizontally through the clamping block at the bottom of the connecting rod.

[0010] Furthermore, the second rotating device comprises: a waterproof bearing, a connecting part and a rotating shaft, wherein the waterproof bearing is mounted on the connecting rod, one end of the connecting part is sleeved on the outside of the waterproof bearing, and the other end is connected to the rotating shaft, and both ends of the rotating shaft extend out of the housing and are connected to the handle. The rotating shaft can drive the connecting rod to rotate through the connecting part, so that the second filter element rotates around the rotating shaft in the vertical direction.

[0011] Furthermore, it also includes a sealing plate, which is rotatably connected to the inside of the housing, and the two ends of the sealing plate are fixedly connected to the handle. When the second filter element is rotated into the housing, the housing is isolated from the water in the upper pipe by rotating the sealing plate to a horizontal position, and then the second filter element is replaced.

[0012] Furthermore, the housing further comprises an inspection door and a drain port, wherein the inspection door is mounted on the side of the housing, and the drain port is opened at the lower part of the housing. When the sealing plate is placed horizontally, the drain port is first opened to release the water inside the housing, and then the inspection door is opened to remove the plugged second filter element, and then a new filter element is plugged tightly onto the connecting rod through interference fit.

[0013] Furthermore, a rotating valve is fixedly connected to the top of the first filter core. The rotating valve is located outside the filter pipe assembly and passes through the outer wall of the filter pipe assembly to be fixedly connected to the first filter core.

[0014] In summary, the utility model has the following advantages and beneficial technical effects:

[0015] 1. The utility model provides a double-stage high-efficiency filter that can reduce the damage to the thermal system caused by multiple shutdowns through the online replacement of the filter element without stopping the machine;

[0016] 2. The utility model uses two filter elements to realize that when the filter element is replaced, the other filter element can play a temporary filtering effect;

[0017] 3. The utility model provides a non-stop maintenance method for a double-stage high-efficiency filter, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a double-stage high efficiency filter of the utility model;

[0020] Figure 2 It is a cross-sectional view of a double-stage high efficiency filter of the utility model;

[0021] Figure 3 The utility model Figure 2 A magnified view of middle;

[0022] Figure 4 It is a left view of a double-stage high efficiency filter of the utility model;

[0023] Figure 5 It is a right view of a housing of a double-stage high efficiency filter of the utility model;

[0024] Figure 6 It is a structural schematic diagram of a housing of a double-stage high-efficiency filter of the utility model;

[0025] Figure 7 It is a top view of a housing of a double-stage high efficiency filter of the utility model;

[0026] Figure 8 The utility model is a top view of the connection position of the cross positioning block of a double-stage high-efficiency filter.

[0027] The reference numerals in the accompanying drawings are:

[0028] 1-filter pipe assembly; 11-first filter element; 111-rotating valve; 12-second filter element; 13-transfer device; 131-first rotating device; 132-second rotating device; 133-connecting rod; 1331-clamping block; 134-cross positioning block; 135-handle; 136-waterproof bearing; 137-connecting part; 138-rotating shaft; 139-sealing plate; 14-housing; 141-inspection door; 142-drain port;

[0029] 2-Flow control valve; 3-Pressure gauge. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 8 The utility model is further described in detail, and examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limiting the utility model.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] like Figure 1 and Figure 2 As shown, it includes: a filter pipe assembly 1, a flow control valve 2 and a pressure gauge 3. The filter pipe assembly 1 is a pipeline-shaped structure. The two ends of the filter pipe assembly 1 are respectively connected to the flow control valve 2 through pipelines. The pressure gauge 3 is respectively installed on the pipeline connecting the filter pipe assembly 1 and the flow control valve 2. The inside of the filter pipe assembly 1 is rotatably connected with a first filter element 11 and a second filter element 12. The two filter elements are fitted together. The bottom of the filter pipe assembly 1 is fixedly connected to a shell 14 for providing a space for replacing the second filter element 12.

[0034] Through the above method, the first filter element is located behind the second filter element, and the second filter element plays the main filtering role. Most impurities accumulate on the second filter element. When a large difference in the values ​​of the two pressure gauges is observed, the second filter element can be replaced, and the first filter element plays a temporary filtering effect.

[0035] like Figure 2 and Figure 3 As shown, the filter pipe assembly 1 further includes a transfer device 13 , which is installed inside the housing 14 , and the upper portion of the transfer device 13 is detachably connected to the lower portion of the second filter element 12 .

[0036] like Figure 3 As shown, the transfer device 13 includes a first rotating device 131 and a second rotating device 132. The first rotating device 131 is installed inside the shell 14 and is detachably connected to the bottom of the second filter element 12. One end of the second rotating device 132 is connected to the side wall of the shell 14, and the other end is rotatably connected to the first rotating device 131.

[0037] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the first rotating device 131 includes: a connecting rod 133, a cross positioning block 134 and a handle 135. The top of the connecting rod 133 is inserted into the bottom of the second filter element 12 by interference fit. The bottom of the connecting rod 133 is an integrally formed clamping block 1331. The bottom of the cross positioning block 134 is fixed with the handle 135 by bolt connection. The handle 135 is located outside the shell 14, and the clamping block 1331 is adapted to the groove on the cross positioning block 134.

[0038] The second rotating device 132 includes: a waterproof bearing 136, a connecting part 137 and a rotating shaft 138. The waterproof bearing 136 is sleeved and installed on the connecting rod 133. A limiting platform is fixed on the connecting rod 133 to prevent the waterproof bearing 136 from sliding down or moving up. One end of the connecting part 137 is sleeved on the outside of the waterproof bearing 136, and the other end is connected to the rotating shaft 138 by a key. Both ends of the rotating shaft 138 extend out of the shell 14 and are connected to handles 135.

[0039] like Figure 4 , Figure 5 and Figure 6 As shown, the shell 14 further includes a sealing plate 139, which is rotatably connected to the inside of the shell 14, and the two ends of the sealing plate 139 are fixedly connected with handles 135. The shell 14 also includes an inspection door 141 and a drain port 142, the inspection door 141 is installed on the side of the shell 14, and the drain port 142 is opened at the lower part of the shell 14.

[0040] The working principle of the double-stage high-efficiency filter of the utility model is:

[0041] When the filter element needs to be replaced, the rotary valve 111 and the handle 135 at the bottom of the first rotating device 131 are rotated at the same time to rotate the first filter element 11 and the second filter element 12 at the same time. When the second filter element 12 rotates 90 degrees, the two handles 135 on the second rotating device 132 are rotated to rotate the second filter element 12 vertically. When the second filter element 12 enters the housing 14, the rotary valve 111 is first rotated to rotate the first filter element 11 back to its original position for temporary filtering, and the handle 135 on the sealing plate 139 is rotated to place the sealing plate 135 horizontally on the housing 14. 4, and then open the drain port 142 to allow the water in the housing 14 to flow out, then open the inspection door 141, unplug the second filter element 12 from the connecting rod 133, replace the new second filter element 12, and then close the drain port 142 and the inspection door 141, turn the rotary valve 111 again to rotate the first filter element 11 to be parallel to the upper opening of the housing, and then turn the second rotating device 132 to make the two filter elements fit together, and finally turn the rotary valve 111 and the first rotating device 131 at the same time to reset the two filter elements, that is, complete the online replacement of the filter element without stopping the machine.

[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A double-stage high efficiency filter, characterized in that: include: A filter pipe assembly (1), a flow control valve (2) and a pressure gauge (3), wherein the filter pipe assembly (1) is a pipeline-shaped structure, the two ends of the filter pipe assembly (1) are respectively connected to the flow control valve (2) via pipelines, the pressure gauge (3) is respectively installed on the pipelines connecting the filter pipe assembly (1) and the flow control valve (2), a first filter core (11) and a second filter core (12) are rotatably connected inside the filter pipe assembly (1), the two filter cores are arranged in close contact, and a housing (14) for providing a space for replacing the second filter core (12) is fixedly connected below the filter pipe assembly (1).

2. A double-stage high efficiency filter according to claim 1, characterized in that: The filter pipe assembly (1) further comprises a transfer device (13), wherein the transfer device (13) is installed inside the housing (14), and the upper part of the transfer device (13) is detachably connected to the lower part of the second filter core (12).

3. A double-stage high efficiency filter according to claim 2, characterized in that: The transfer device (13) comprises a first rotating device (131) and a second rotating device (132); the first rotating device (131) is installed inside the housing (14) and is detachably connected to the bottom of the second filter element (12); one end of the second rotating device (132) is connected to the side wall of the housing (14), and the other end is rotatably connected to the first rotating device (131).

4. A double-stage high efficiency filter according to claim 3, characterized in that: The first rotating device (131) comprises: a connecting rod (133), a cross positioning block (134) and a handle (135); the top end of the connecting rod (133) is plugged into the bottom of the second filter element (12); the bottom of the connecting rod (133) is a clamping block (1331); the bottom of the cross positioning block (134) is fixedly connected to the handle (135); the handle (135) is located outside the housing (14); and the clamping block (1331) is matched with a groove on the cross positioning block (134).

5. A double-stage high efficiency filter according to claim 4, characterized in that: The second rotating device (132) comprises: a waterproof bearing (136), a connecting portion (137) and a rotating shaft (138); the waterproof bearing (136) is mounted on the connecting rod (133); one end of the connecting portion (137) is sleeved on the outside of the waterproof bearing (136), and the other end is connected to the rotating shaft (138); both ends of the rotating shaft (138) extend out of the housing (14) and are connected to the handle (135).

6. A double-stage high efficiency filter according to claim 4, characterized in that: It also comprises a sealing plate (139), the sealing plate (139) being rotatably connected to the interior of the housing (14), and the handle (135) being fixedly connected to both ends of the sealing plate (139).

7. A double-stage high efficiency filter according to claim 1, characterized in that: The shell (14) further comprises an inspection door (141) and a drain port (142); the inspection door (141) is installed on a side of the shell (14); and the drain port (142) is opened at the lower part of the shell (14).

8. A double-stage high efficiency filter according to claim 1, characterized in that: A rotary valve (111) is fixedly connected above the first filter core (11); the rotary valve (111) is located outside the filter pipe assembly (1) and passes through the outer wall of the filter pipe assembly (1) to be fixedly connected to the first filter core (11).

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