A filter device for a heat delivery system

Abstract

This application provides a filtration device for a heating supply system, including a filter box and multiple filter plates disposed within the filter box. The filter box has an inlet and an outlet. The multiple filter plates are arranged sequentially along the fluid flow direction, wherein at least one layer is a magnetic filter layer and at least one layer is a mechanical filter layer. The magnetic filter layer is used to adsorb ferromagnetic impurities, and the mechanical filter layer is used to retain solid impurities. This filtration device for a heating supply system, through the combination of magnetic and mechanical filter layers, effectively filters various impurities in the heating supply system, meeting the protection requirements of the heating supply system under complex impurity conditions.

Description

Technical Field

[0001] This application relates to the field of heating technology, specifically to a filtration device for a heating delivery system. Background Technology

[0002] A heating delivery system is a network of equipment that efficiently and safely delivers heat energy (such as hot water, steam, or hot air) from a heat source to end users. During the long-term operation of a heating delivery system, solid impurities inevitably accumulate in the delivery pipelines. These impurities flow through the pipelines with the circulating water or heat transfer medium. If they are not effectively intercepted, they will not only reduce the operating efficiency of the equipment in the heating delivery system and shorten its lifespan, but may also cause system failures.

[0003] Most existing pipeline filtration devices use mechanical filtration layers such as filter screens or filter cartridges within the pipeline to trap impurities of varying sizes. While effective at filtering non-magnetic impurities like silt and plastic debris, their filtration efficiency and applicability are significantly limited when dealing with ferromagnetic materials such as iron filings, nails, and screws left from corrosion on the inner walls of newly installed pipelines or from welding residues. On one hand, some magnetic impurities (such as iron oxide powder) have small particle sizes, requiring high-resolution filter screens; on the other hand, magnetic impurities may be attracted by magnetic forces to non-filtration areas such as pipe bends and pump bodies, preventing complete filtration.

[0004] Therefore, in order to ensure the safe and efficient operation of the heating system, it is urgent to develop a device with multifunctional and efficient filtration capabilities to solve the problem of the single filtration function of existing filtration devices and meet the protection requirements of the heating delivery system under complex impurity conditions. Utility Model Content

[0005] The purpose of this utility model is to provide a filtration device for a heating delivery system, which achieves effective filtration of various impurities in the heating delivery system through a combination of magnetic and mechanical filter layers, thus meeting the protection requirements of the heating delivery system under complex impurity conditions.

[0006] This application is achieved through the following technical solution, specifically:

[0007] A filtration device for a heating delivery system includes a filter box and a multi-layer filter plate disposed within the filter box. The filter box is provided with an inlet and an outlet. The multi-layer filter plate is arranged sequentially along the fluid flow direction, wherein at least one layer is a magnetic filter layer and at least one layer is a mechanical filter layer. The magnetic filter layer is used to adsorb ferromagnetic impurities, and the mechanical filter layer is used to intercept solid impurities.

[0008] This solution employs multi-layer filter plates, including at least a magnetic filter layer and a mechanical filter layer. The magnetic filter layer effectively adsorbs ferromagnetic impurities, such as rust particles, while the mechanical filter layer traps various solid impurities, such as silt and scale. This multi-layer filtration combination achieves comprehensive removal of different types of impurities, improves filtration efficiency, thereby enhancing the operating efficiency of the heating system and extending its service life.

[0009] As an improvement to the magnetic filter layer in this application, the magnetic filter layer includes multiple sets of magnetic rods fixed at the upper end to the inner surface of the filter plate frame, and the magnetic rods are arranged at equal intervals along the direction perpendicular to the liquid flow.

[0010] Furthermore, the magnetic filter layer also includes a sleeve assembly nested outside the magnetic rod, the lower end of which is fixedly installed on the detachable base plate of the filter plate frame.

[0011] As an improvement to the multilayer filter plate in this application, at least one layer of the multilayer filter plate is a flow guiding layer, which is used to guide the fluid to pass uniformly through the magnetic filter layer.

[0012] Furthermore, the flow guiding layer includes a flow guiding plate fixedly connected to the inner surface of the filter plate frame. The flow guiding plate has a V-shaped structure, and a flow diversion port is provided on the inclined surface of the flow guiding plate.

[0013] As an improvement to the multi-layer filter plate in this application, each layer of the multi-layer filter plate is slidably connected to the inner wall of the filter box, and each layer of filter plate is provided with a pull ring on its outer wall.

[0014] As an improvement to the present application, the filtration device for the heating delivery system further includes a differential pressure detection device, which includes at least a pair of pressure sensors disposed between adjacent filter plates of the multilayer filter plate and a controller electrically connected to the pressure sensors.

[0015] The beneficial effects of this application are as follows:

[0016] The solution proposed in this application employs a multi-layer filter plate, comprising at least a magnetic filter layer and a mechanical filter layer. The magnetic filter layer effectively adsorbs ferromagnetic impurities, such as rust particles, while the mechanical filter layer traps various solid impurities, such as silt and scale. This multi-layer filtration combination enables comprehensive removal of different types of impurities, improves filtration efficiency, thereby enhancing the operating efficiency of the heating system and extending its service life.

[0017] In addition to the technical problems solved by this utility model, the technical features constituting the technical solution, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that this utility model can solve, other technical features contained in the technical solution, and the advantages brought about by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a filter device for a heating delivery system according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of the multilayer filter plate in the embodiments of this application;

[0020] Figure 3 This is a cross-sectional schematic diagram of the flow guiding layer in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of material flow in a filtration device for a heating delivery system according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Filter box; 2. Multi-layer filter plate; 11. Inlet; 12. Outlet; 21. Magnetic filter layer; 22. Mechanical filter layer; 211. Filter plate frame; 212. Magnetic rod; 213. Sleeve assembly; 214. Removable base plate; 23. Flow guide layer; 231. Flow guide plate; 232. Diversion port; 3. Pull ring. Detailed Implementation

[0024] The following will be combined with the appendix Figures 1-4 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] In view of the problems existing in the background technology or products, Figure 1 This invention provides a schematic diagram of the structure of a filtration device for a heating delivery system according to an embodiment of the present application. Figure 2 A schematic diagram of the structure of a multilayer filter plate in an embodiment of this application is shown. Figures 1-2As shown in the figure, this application provides a filtration device for a heating delivery system, including: a filter box 1 and a multi-layer filter plate 2 disposed in the filter box 1. The filter box 1 is provided with an inlet 11 and an outlet 12. The multi-layer filter plate 2 is arranged sequentially along the fluid flow direction, wherein at least one layer is a magnetic filter layer 21 and at least one layer is a mechanical filter layer 22. The magnetic filter layer 21 is used to adsorb ferromagnetic impurities, and the mechanical filter layer 22 is used to intercept solid impurities.

[0026] Specifically, the filter box 1 is equipped with a top cover, providing space for installing multiple layers of filter plates 2 and protecting the filter plates from damage by the external environment. To facilitate cleaning and maintenance of the multiple layers of filter plates 2, preferably, each layer of the filter plates 2 is slidably connected to the inner wall of the filter box 1, and each layer of filter plates has a pull ring 3 on its outer wall. The filter box 1 is equipped with an inlet 11 and an outlet 12, used to receive the fluid to be filtered and to discharge the filtered fluid, respectively. The multiple layers of filter plates 2 are arranged sequentially along the fluid flow direction, forming a multi-stage filtration system capable of progressively removing impurities of different types and sizes from the fluid to be filtered. The number and type of filter plates can be adjusted according to actual needs to meet the filtration requirements of different heating systems. The mechanical filter layer 22 intercepts solid impurities, such as silt and suspended solids, through physical interception (e.g., filter screens, filter cartridges). The filtration precision of this filter layer can be selected as needed to meet the water quality requirements of different heating systems.

[0027] The magnetic filter layer 21 uses magnetic materials to adsorb ferromagnetic impurities, such as iron filings and rust. In one implementation, the magnetic filter layer 21 includes multiple sets of magnetic rods 212 with their upper ends fixed to the inner surface of the filter plate frame 211, and the magnetic rods 212 are arranged at equal intervals along a direction perpendicular to the liquid flow direction.

[0028] Specifically, the magnetic rods 212 are arranged at equal intervals along the direction perpendicular to the liquid flow, so that ferromagnetic impurities in the fluid can fully contact the magnetic rods when passing through the magnetic filter layer 21, thereby improving the filtration efficiency.

[0029] Preferably, the magnetic filter layer 21 further includes a sleeve assembly 213 nested outside the magnetic rod 212, the lower end of which is fixedly mounted on the detachable base plate 214 of the filter plate frame 211. The sleeve assembly 213 includes multiple sets of sleeves corresponding to the number and shape of the magnetic rods 212, providing protection for the magnetic rods 212 and reducing the direct impact and wear of the fluid on the magnetic rods. Optionally, the sleeve assembly 213 can be made of non-magnetic materials, such as plastic or stainless steel, to ensure that it does not interfere with the magnetism of the magnetic rods.

[0030] Figure 3 A cross-sectional schematic diagram of the flow guide layer in an embodiment of this application is shown. For example... Figure 3As shown, in one implementation, at least one layer of the multilayer filter plate 2 is a flow guiding layer 23, which is used to guide fluid to pass uniformly through the magnetic filter layer 21.

[0031] Specifically, the flow guide layer 23 ensures that the fluid is evenly distributed before entering the magnetic filter layer 21, avoiding the formation of local high or low flow velocity areas in the filter box 1, and also allows the magnetic rods 212 in the magnetic filter layer 21 to make more full contact with the fluid, thereby improving the filtration efficiency.

[0032] Preferably, the flow guiding layer 23 includes a flow guiding plate 231 fixedly connected to the inner surface of the filter plate frame 211. The flow guiding plate 231 has a V-shaped structure, and a flow diversion port 232 is provided on the inclined surface of the flow guiding plate 231.

[0033] The V-shaped structure helps guide the fluid to disperse to both sides, forming a uniform flow distribution. Figure 4 A schematic diagram of material flow in a filtration device for a heating delivery system, as shown in an embodiment of this application, is illustrated. Figure 4 As shown, specifically, after the fluid impacts the tip of the V-shaped guide plate, it flows to both sides along the inclined surface of the guide plate, thus achieving initial dispersion of the fluid. The function of the diversion port 232 is to further subdivide and evenly distribute the fluid. When the fluid flows along the inclined surface of the guide plate, some fluid will flow out through the diversion port 232, making the fluid more evenly distributed within the guide layer. This ensures that the water flow evenly covers each magnetic rod 212 when passing through the magnetic filter layer 21, avoiding premature saturation of the magnetic rod 212 due to excessive flow in local areas or reduced adsorption efficiency due to insufficient flow.

[0034] In one implementation, a differential pressure detection device is also included, which includes at least a pair of pressure sensors disposed between adjacent filter plates of the multilayer filter plate 2 and a controller electrically connected to the pressure sensors.

[0035] Specifically, differential pressure is a crucial indicator of the degree of filtration clogging. When fluid passes through the multi-layer filter plates 2, pressure loss occurs due to the resistance of the filter plates. Pressure sensors measure the upstream and downstream pressures between adjacent filter plates. The controller receives the pressure signals from the pressure sensors and calculates the differential pressure (differential pressure = upstream pressure - downstream pressure). The controller compares the differential pressure value with a preset threshold. If the differential pressure exceeds the threshold, it indicates that the filter plates may be clogged and require cleaning or replacement. This reduces the workload and errors of manual inspections, preventing decreased filtration efficiency and heating system malfunctions caused by filter plate clogging.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set", "equipped with", "connected", and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filtration device for a heat supply and delivery system, characterized in that, include: A filter box (1) and a multi-layer filter plate (2) disposed in the filter box (1). The filter box (1) is provided with an inlet (11) and an outlet (12). The multi-layer filter plate (2) is arranged sequentially along the fluid flow direction, wherein at least one layer is a magnetic filter layer (21) and at least one layer is a mechanical filter layer (22). The magnetic filter layer (21) is used to adsorb ferromagnetic impurities, and the mechanical filter layer (22) is used to intercept solid impurities.

2. The filtration device for a heat supply and delivery system as described in claim 1, characterized in that, The magnetic filter layer (21) includes multiple sets of magnetic rods (212) with their upper ends fixed to the inner surface of the filter plate frame (211). The magnetic rods (212) are arranged at equal intervals along the direction perpendicular to the liquid flow.

3. A filtration device for a heating delivery system as described in claim 2, characterized in that, The magnetic filter layer (21) also includes a sleeve assembly (213) nested outside the magnetic rod (212), the lower end of which is fixedly installed on the detachable base plate (214) of the filter plate frame (211).

4. A filtration device for a heat supply and delivery system as described in claim 2 or 3, characterized in that, At least one layer of the multilayer filter plate (2) is a flow guiding layer (23), which is used to guide the fluid to pass evenly through the magnetic filter layer (21).

5. A filtration device for a heat supply and delivery system as described in claim 4, characterized in that, The flow guiding layer (23) includes a flow guiding plate (231) fixedly connected to the inner surface of the filter plate frame (211). The flow guiding plate (231) has a V-shaped structure, and a flow diversion port (232) is opened on the inclined surface of the flow guiding plate (231).

6. A filtration device for a heating delivery system as described in claim 1, characterized in that, Each layer of the multi-layer filter plate (2) is slidably connected to the inner wall of the filter box (1), and each layer of filter plate is provided with a pull ring (3) on its outer wall.

7. A filtration device for a heating delivery system as described in claim 1, characterized in that, It also includes a differential pressure detection device, which includes at least one pair of pressure sensors disposed between adjacent filter plates of the multilayer filter plate (2) and a controller electrically connected to the pressure sensors.

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