阅读说明：本技术 可反冲洗快速排污的y型过滤器 (Y-shaped filter capable of backwashing and quickly discharging sewage ) 是由 田德龙 赵长春 郝春来 张国庆 李智力 于 2019-12-20 设计创作，主要内容包括：本发明可反冲洗快速排污的Y型过滤器,包括过滤器本体(1)和安装于过滤器本体(1)内的滤网筒(3),过滤器本体(1)的流体进口(11)上装有进口球阀(4),过滤器本体(1)的排污口(13)通过过渡接头(2)与排污球阀(5)相连。本发明可反冲洗快速排污的Y型过滤器通过安装进口球阀和排污球阀可以实现对Y型过滤器的快速反向冲洗排污,使得Y型过滤器在清除杂质时不需要拆除堵头和滤网筒,减少了因为拆装滤网筒造成的一系列问题,提高了排污效率和质量。(The invention discloses a Y-shaped filter capable of backwashing and quickly discharging sewage, which comprises a filter body (1) and a filter screen cylinder (3) arranged in the filter body (1), wherein an inlet ball valve (4) is arranged on a fluid inlet (11) of the filter body (1), and a sewage outlet (13) of the filter body (1) is connected with a sewage discharge ball valve (5) through a transition joint (2). The Y-shaped filter capable of backwashing and rapidly discharging sewage can realize rapid reverse flushing and sewage discharging of the Y-shaped filter by installing the inlet ball valve and the sewage discharging ball valve, so that the Y-shaped filter does not need to disassemble the plug and the filter screen cylinder when removing impurities, a series of problems caused by disassembling and assembling the filter screen cylinder are reduced, and the sewage discharging efficiency and quality are improved.)

1. The Y-shaped filter capable of backwashing and rapidly discharging sewage comprises a filter body (1) and a filter screen cylinder (3) installed in the filter body (1), and is characterized in that an inlet ball valve (4) is installed on a fluid inlet (11) of the filter body (1), and a sewage outlet (13) of the filter body (1) is connected with a sewage discharge ball valve (5) through a transition joint (2).

Technical Field

The present invention relates to a filter device, and more particularly to a filter for pipes, pumps and the like.

Background

The Y-filter is an indispensable filtering device for the pipeline system for conveying the medium, and is usually installed at the inlet end of a pressure reducing valve, a pressure relief valve, a level valve or other equipment to remove impurities in the medium so as to protect the normal use of the valve and the equipment. The Y-shaped filter has the characteristics of advanced structure, small resistance, convenient pollution discharge and the like. The suitable medium of the Y-shaped filter can be water, oil and gas. Generally, the water passing net is 18-30 meshes, the air passing net is 10-100 meshes, and the oil passing net is 100-480 meshes. For example, in the existing residential heating system, the house-entering main pipe is generally provided with a Y-shaped filter for removing impurities in the medium, so as to protect the normal use of the indoor heating system. However, in the initial stage of heating or after a period of operation, the Y-shaped filter can cause the phenomenon of filter screen blockage due to excessive accumulated impurities, and further influences the indoor heating quality, and at the moment, a professional water heating worker needs to clean the filter screen at the upper door. However, when the Y-type filter is cleaned manually at present, the common practice is to close the household water supply and return valve, remove the plug of the Y-type filter, take out the filter screen, clean the filter screen, and then return the filter screen to the Y-type filter, but the following situations may occur after cleaning the filter screen:

due to the influence of water heating quality, the filter screen of the Y-shaped filter can be directly dismantled, so that the original design effect is influenced;

when workers clean the filter screen, the single amount of maintenance workers is large, the time is short, and the service response quality is not high;

when the filter screen is disassembled and cleaned, the space is insufficient, and the filter screen is cleaned;

the front valve and the rear valve of the filter are not closed tightly, and a water drainage accident occurs;

air enters the pipe network to cause air blockage.

Therefore, the prior Y-type filter needs further technical improvement when the impurities are removed.

Disclosure of Invention

The invention aims to provide a Y-shaped filter which is simple in structure, easy to operate and capable of backwashing and quickly discharging sewage.

The Y-shaped filter capable of backwashing and quickly discharging sewage comprises a filter body and a filter screen cylinder arranged in the filter body, wherein an inlet ball valve is arranged on a fluid inlet of the body, and a sewage discharge outlet of the body is connected with the sewage discharge ball valve through a transition joint.

The Y-shaped filter capable of backwashing and rapidly discharging sewage can realize rapid reverse flushing and sewage discharging of the Y-shaped filter by installing the inlet ball valve and the sewage discharging ball valve, so that the Y-shaped filter does not need to disassemble the plug and the filter screen cylinder when removing impurities, a series of problems caused by disassembling and assembling the filter screen cylinder are reduced, and the working efficiency is improved.

The Y-shaped filter capable of backwashing and rapidly discharging sewage is further described below with reference to the attached drawings.

Drawings

FIG. 1 is a schematic structural view of a Y-shaped filter capable of backwashing and rapidly discharging sewage in a normal working state;

FIG. 2 is a schematic structural diagram of the Y-shaped filter capable of backwashing and rapidly discharging sewage in a backwashing sewage discharge state;

Detailed Description

As shown in fig. 1 and 2, the Y-type filter capable of backwashing and rapidly discharging sewage of the present invention includes a filter body 1 and a filter screen cylinder 3. The filter body 1 has a total of three ports, a fluid inlet 11, a fluid outlet 12 and a waste outlet 13. Fluid inlet 11 and 4 thread sealing connections of import ball valve, drain 13 and 2 thread sealing connections of transition joint, the other end and 5 thread sealing connections of blowdown ball valve of transition joint 2 are in the same place, filter screen cylinder 3 adorns in filter body 1's filter chamber 10, the diameter of drain 13 can be enough to take out 3 a section of thick bamboos of filter screen, when being convenient for filter screen cylinder 3 breaks down, take out filter screen cylinder 3 from the drain and change, the internal diameter of transition joint 2 is less than 3 diameters of filter screen cylinder, be used for being fixed in filter chamber 10 with filter screen cylinder 3. According to the difference of the use scenes of the Y-shaped filter, the transition joint 2 can be connected with the sewage outlet 13 in a flange sealing mode, the inlet ball valve 4 can be connected with the fluid inlet 11 in a flange sealing mode, and the sewage ball valve 5 can be connected with the transition joint 2 in a flange sealing mode.

As shown in figure 1, when the Y-shaped filter capable of backwashing and rapidly draining sewage is in a normal working state, the inlet ball valve 4 is in an open state, and the sewage draining ball valve 5 is in a closed state. The fluid enters the filter cavity 10 of the filter body 1 from the inlet ball valve 4 and flows into the filter screen cylinder 3, after being filtered by the filter screen cylinder 3, the fluid flows out of the filter cavity 10 of the filter body 1 through the fluid outlet 12, and the filtered impurities are left in the filter screen cylinder 3.

As shown in fig. 2, when the impurities are accumulated to a certain degree and affect the normal operation of the filter, the inlet ball valve 4 is closed, the drain ball valve 5 is opened, the fluid reversely flows into the filter cavity 10 of the filter body 1 through the fluid outlet 12 by using the medium pressure of the original fluid, and after reversely passing through the filter screen cylinder 3, the fluid flows out through the drain ball valve 5, so that the impurities in the filter screen cylinder 3 are discharged out of the Y-type filter.

The Y-shaped filter capable of backwashing and rapidly discharging sewage greatly saves sewage discharge time. For example, for a heating and ventilation pipeline, when a maintainer dredges the pipeline in the past, the plug of the Y-shaped filter needs to be detached, the filter screen is taken out and cleaned, and then the Y-shaped filter is put back, the branch pipeline is dredged for more than ten minutes, the main pipeline is dredged for more than one hour, and the plug and the filter screen cylinder of the main pipeline are heavier, so that the required time is longer. The Y-shaped filter capable of backwashing and rapidly discharging sewage can discharge impurities by closing the inlet ball valve 4 and opening the sewage discharge ball valve 5 to discharge water, dredging branch pipelines takes about one minute and dredging main pipelines takes about five minutes, so that the working efficiency of sewage discharge is improved, the original sealing effect is protected, and the problems of water leakage and the like caused by repeatedly disassembling and assembling filter screen cylinders of the Y-shaped filter are solved.

The Y-shaped filter capable of backwashing and rapidly discharging the sewage has the advantages of high reverse sewage discharging efficiency, simple structure, easy operation and wide application range, and can be used for filtering media such as water, oil, gas and the like. The Y-shaped filter capable of backwashing and rapidly discharging sewage enables the impurity removing work of the Y-shaped filter to be faster and more convenient, and meanwhile, the quality of the Y-shaped filter is not influenced when impurities are removed.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.