Filter valve of heat supply system

Abstract

The utility model relates to a filter valve of a heat supply system, which comprises a valve body, a hot melting plastic part is mounted at the front end of the valve body, an external thread connector is mounted at the rear end of the valve body, a main valve ball and a temperature and pressure dual-purpose meter are mounted on the valve body, the main valve ball is connected with a main handle through a main valve rod, a mounting bottom cylinder is arranged at the bottom of the valve body, and a filter cup is mounted on the mounting bottom cylinder. A filter valve ball is installed at the lower end of the inner wall of the filter cup and connected with an opening and closing handle through a laterally-arranged valve rod and a valve nail, a pollution discharge connector pipe is installed at the bottom of the filter cup in a threaded mode, a vertical filter screen cylinder is installed in the filter cup, a partition plate is arranged at the position, at the front end of the temperature and pressure dual-purpose meter, in the valve body, and valve body filter screen steps are arranged at the position, at the lower end of the partition plate, of the inner wall of the valve body. The top of the vertical filter screen cylinder is installed on the valve body filter screen step in an abutting mode, and an overflowing channel is arranged between the rear end of the isolation plate and the installation bottom cylinder. The heating device is good in filtering effect, not prone to being blocked and easy to clean, not only can bring better heating use experience to customers, but also can reduce later maintenance difficulty and cost.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC manifold, and particularly relates to a filter valve for a heating system. Background Art

[0002] Filter valves are widely used in heating systems. Most of the filter meshes of traditional filter valves are arranged obliquely. The filter meshes are small, the filtering capacity is limited, and they are easy to be blocked. Moreover, most filter valves have no sewage discharge structure, and it is not convenient to clean the filter mesh, which brings a bad user experience to users. Therefore, it is particularly necessary to develop a filter valve with good filtering effect, not easy to be blocked and easy to clean, which can not only bring a better heating use experience to customers, but also reduce the difficulty and cost of later maintenance. Content of the Utility Model

[0003] The utility model aims to solve the deficiencies of the prior art and provides a filter valve for a heating system.

[0004] In order to achieve the above object, the utility model adopts the following technical solutions:

[0005] A filter valve for a heating system includes a valve body. A hot melt plastic part is installed at the front end of the valve body, and an external thread joint is installed at the rear end. A main valve ball is installed at one end of the valve body close to the hot melt plastic part. The main valve ball is connected with a main handle through a main valve rod. A temperature and pressure dual-purpose meter is installed at one end of the valve body close to the external thread joint. An installation bottom cylinder is arranged between the main valve ball and the temperature and pressure dual-purpose meter at the bottom of the valve body. The installation bottom cylinder is installed with a filter cup through threads. A filter valve ball is installed at the lower end of the inner wall of the filter cup. The filter valve ball is connected with an opening and closing handle through a side valve rod and a valve nail. A sewage discharge interface pipe is installed at the bottom of the filter cup through threads. A vertical filter mesh cylinder is installed in the filter cup. An isolation plate is arranged at the front end of the temperature and pressure dual-purpose meter in the valve body. A valve body filter mesh step is arranged at the lower end of the inner wall of the valve body and the isolation plate. The top of the vertical filter mesh cylinder is abutted and installed on the valve body filter mesh step. An over-flow channel is arranged between the rear end of the isolation plate and the installation bottom cylinder.

[0006] A filter cup filter mesh step is arranged in the filter cup. The bottom of the vertical filter mesh cylinder is abutted and installed on the filter cup filter mesh step.

[0007] An external hexagon of the filter cup is arranged above the filter valve ball on the outer wall of the filter cup.

[0008] The hot melt plastic part is connected with the valve body through a first locking nut.

[0009] The external thread joint is connected with the valve body through a second locking nut.

[0010] The beneficial effects of the utility model are as follows: The utility model has good filtering effect, is not easy to be blocked and is easy to clean, which can not only bring a better heating use experience to customers, but also reduce the difficulty and cost of later maintenance. Description of the Drawings

[0011] Figure 1 This is a schematic diagram of the working state of the present utility model;

[0012] Figure 2 This is a schematic diagram of the sewage discharge state of the present utility model;

[0013] Figure 3 This is a schematic structural diagram of the valve body;

[0014] Figure 4 This is a schematic structural diagram of the filter cup;

[0015] Figure 5 This is a schematic structural diagram of the sewage discharge interface pipe;

[0016] In the figure: 1-valve body; 2-hot melt plastic part; 3-external thread joint; 4-main valve ball; 5-main handle; 6-temperature and pressure dual-purpose meter; 7-installation bottom cylinder; 8-filter cup; 9-filter valve ball; 10-side valve rod; 11-valve nail; 12-opening and closing handle; 13-sewage discharge interface pipe; 14-vertical filter screen cylinder; 15-isolation plate; 16-valve body filter screen step; 17-overflow channel; 18-filter cup filter screen step; 19-filter cup external hexagon; 20-first locking nut; 21-second locking nut; 22-groove; 23-sealing gasket; 24-first sealing ring; 25-second sealing ring;

[0017] The following will describe in detail with reference to the embodiments of the present utility model with reference to the accompanying drawings. Specific embodiments

[0018] The following describes the principles and features of the present utility model with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not used to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0019] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0021] The following further describes this utility model in conjunction with the accompanying drawings and embodiments:

[0022] As Figures 1 to 5 shown, a heating system filter valve includes a valve body 1, a hot melt plastic part 2, an external thread joint 3, a main valve ball 4, a main handle 5, a temperature and pressure dual-purpose meter 6, an installation bottom cylinder 7, a filter cup 8, a filter valve ball 9, a side-mounted valve rod 10, a valve nail 11, an opening and closing handle 12, a sewage discharge interface pipe 13, a vertical filter screen cylinder 14, a partition plate 15, a valve body filter screen step 16, a flow-through channel 17, a filter cup filter screen step 18, a filter cup external hexagon 19, a first locking nut 20, a second locking nut 21, a groove 22, a sealing gasket 23, a first sealing ring 24, and a second sealing ring 25.

[0023] The front end of the valve body 1 is installed with a hot melt plastic part 2 and the rear end is installed with an external thread joint 3. The hot melt plastic part 2 is connected to the valve body 1 through a first locking nut 20, and the external thread joint 3 is connected to the valve body 1 through a second locking nut 21.

[0024] One end of the valve body 1 close to the hot melt plastic part 2 is installed with a main valve ball 4. The main valve ball 4 is connected to a main handle 5 through a main valve rod. One end of the valve body 1 close to the external thread joint 3 is installed with a temperature and pressure dual-purpose meter 6.

[0025] An installation bottom cylinder 7 is provided between the main valve ball 4 and the temperature and pressure dual-purpose meter 6 at the bottom of the valve body 1. The installation bottom cylinder 7 is installed with a filter cup 8 through a thread. A first sealing ring 24 is provided between the filter cup 8 and the inner wall of the installation bottom cylinder 7.

[0026] The lower end of the inner wall of the filter cup 8 is installed with a filter valve ball 9. Sealing gaskets 23 are provided between the upper and lower ends of the filter valve ball 9 and the inner wall of the filter cup 8. The filter valve ball 9 is connected to an opening and closing handle 12 through a side-mounted valve rod 10 and a valve nail 11. A number of second sealing rings 25 are provided between the side-mounted valve rod 10 and the filter cup 8.

[0027] The bottom of the filter cup 8 is installed with a sewage discharge interface pipe 13 through a thread. A number of grooves 22 are provided on the outer wall of the sewage discharge interface pipe 13 from top to bottom for connecting a sewage discharge hose.

[0028] A vertical filter screen cylinder 14 is installed in the filter cup 8, an isolation plate 15 is provided at the front end of the temperature and pressure dual-purpose meter 6 in the valve body 1, a valve body filter screen step 16 is provided on the inner wall of the valve body 1 and the lower end of the isolation plate 15, the top of the vertical filter screen cylinder 14 is installed in abutment with the valve body filter screen step 16, a flow channel 17 is provided between the rear end of the isolation plate 15 and the installation bottom cylinder 7, a filter cup filter screen step 18 is provided in the filter cup 8, and the bottom of the vertical filter screen cylinder 14 is installed in abutment with the filter cup filter screen step 18.

[0029] The outer wall of the filter cup 8 is provided with a filter cup outer hexagon 19 above the filter valve ball 9 .

[0030] The working principle of the utility model is as follows:

[0031] Working (filtering) status:

[0032] like Figure 1 As shown, the filter valve ball 9 is in a closed state, and heating water flows in from the end of the hot-melt plastic part 2, flows through the interior of the vertical filter mesh cylinder 14, and the filtered water passes through the exterior of the vertical filter mesh cylinder 14, and then flows through the flow channel 17 and the external thread connector 3 on the valve body 1, completing the filtration of the heating water.

[0033] Discharge status:

[0034] like Figure 2 As shown, the filter valve ball 9 is in an open state, and heating water flows in from the end of the hot-melt plastic part 2, flows through the interior of the vertical filter screen cylinder 14, and completes sewage discharge through the filter valve ball 9 and the sewage interface pipe 13.

[0035] Cleaning of the vertical filter screen 14:

[0036] The filter cup 8 is provided with a filter cup outer hexagon 19, which can be unscrewed with a wrench, and the vertical filter screen cylinder 14 is taken out for cleaning. After cleaning, it can be installed back in the reverse direction.

[0037] The utility model has good filtering effect, is not easy to be blocked, and is easy to clean. It can not only bring better heating experience to customers, but also reduce the difficulty and cost of later maintenance.

[0038] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A filtering valve for a heating system, comprising a valve body (1), a hot-melt plastic part (2) is installed at the front end of the valve body (1), and an external thread joint (3) is installed at the rear end. A main valve ball (4) is installed at one end of the valve body (1) close to the hot-melt plastic part (2). The main valve ball (4) is connected to a main handle (5) through a main valve rod. A temperature and pressure dual-purpose meter (6) is installed at one end of the valve body (1) close to the external thread joint (3). It is characterized in that, At the bottom of the valve body (1), an installation bottom cylinder (7) is provided between the main valve ball (4) and the temperature and pressure dual-purpose meter (6). The installation bottom cylinder (7) is threadedly installed with a filter cup (8). At the lower end of the inner wall of the filter cup (8), a filter valve ball (9) is installed. The filter valve ball (9) is connected to an opening and closing handle (12) through a side-mounted valve rod (10) and a valve stud (11). A sewage discharge interface pipe (13) is threadedly installed at the bottom of the filter cup (8). A vertical filter screen cylinder (14) is installed inside the filter cup (8). Inside the valve body (1), an isolation plate (15) is provided in front of the temperature and pressure dual-purpose meter (6). On the inner wall of the valve body (1) and the lower end of the isolation plate (15), a valve body filter screen step (16) is provided. The top of the vertical filter screen cylinder (14) is abutted and installed on the valve body filter screen step (16). An over-flow channel (17) is provided between the rear end of the isolation plate (15) and the installation bottom cylinder (7).

2. The filter valve of a heating system according to claim 1, characterized in that, Inside the filter cup (8), a filter cup filter screen step (18) is provided. The bottom of the vertical filter screen cylinder (14) is abutted and installed on the filter cup filter screen step (18).

3. A heat supply system filter valve according to claim 2, characterized in that, On the outer wall of the filter cup (8), a filter cup external hexagon (19) is provided above the filter valve ball (9).

4. The filtering valve of a heating system according to claim 3, wherein, The hot-melt plastic part (2) is connected to the valve body (1) through a first locking nut (20).

5. A filter valve for a heating system according to claim 4, characterized in that, The external thread joint (3) is connected to the valve body (1) through a second locking nut (21).

6. The filter valve of a heating system according to claim 5, wherein, On the outer wall of the sewage discharge interface pipe (13), several grooves (22) are provided from top to bottom.

7. The filter valve of a heating system according to claim 6, characterized in that, Sealing gaskets (23) are provided between the upper and lower ends of the filter valve ball (9) and the inner wall of the filter cup (8).

8. A filtering valve for a heating system according to claim 7, characterized in that, A first sealing ring (24) is provided between the filter cup (8) and the inner wall of the installation bottom cylinder (7).

9. The filtering valve of a heating system according to claim 8, characterized in that, Several second sealing rings (25) are provided between the side-mounted valve rod (10) and the filter cup (8).

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