CN212731243U

CN212731243U - Back flush filter for heat supply engineering

Info

Publication number: CN212731243U
Application number: CN202021416297.7U
Authority: CN
Inventors: 高岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-19
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a back flush filter for heat supply engineering relates to heat supply engineering technical field, including first trunk line and second trunk line, one side intercommunication of first trunk line has the feed liquor pipe, and the opposite side fixedly connected with go-between of first trunk line, one side intercommunication of second trunk line has the fluid-discharge tube, be provided with first valve on the fluid-discharge tube. The utility model discloses in, through the feed liquor pipe, the filter screen, the fluid-discharge tube, first valve, the clearance pipe, the second valve, cooperation between blow off pipe and the third valve is used, can carry out the edulcoration to the hot water in the heat supply process, have and to realize the back flush function, clear up it under the prerequisite of not dismantling the filter screen, the efficiency of clearance has been increased, and pass through ring type seal, the annular seal groove, the go-between, first trunk line, the second trunk line, stop the ring, the filter screen and stop the cooperation between the pole and use, make things convenient for this filter installation and dismantlement, conveniently overhaul.

Description

Back flush filter for heat supply engineering

Technical Field

The utility model relates to a heat supply engineering technical field specifically is back flush filter for heat supply engineering.

Background

The heat supply engineering is a general term of design, construction and operation activities of facilities for conveying heat energy to living and production areas, and the facilities and the professional technologies comprise three major parts, namely a heat source: for example, a boiler room and a thermal power plant are equipment and technology for converting fuel into heat energy, and a heat supply network is adopted: the heat energy is transferred to heat consumers, such as residential buildings and factories using steam, through pipelines and heat carriers (working media, usually water or water vapor). In general, in a heating project, in order to prevent solid particle impurities such as scale from blocking a heating pipe, the solid particle impurities need to be filtered and removed by using a filter.

However, in the prior art, the filter for heating engineering needs to be disassembled from the filter screen in the process of cleaning the filter screen, so that the cleaning efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back flush filter for heat supply engineering to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the back washing filter for the heat supply engineering comprises a first main pipeline and a second main pipeline, wherein one side of the first main pipeline is communicated with a liquid inlet pipe, the other side of the first main pipeline is fixedly connected with a connecting ring, the upper part and the lower part of one side, far away from the first main pipeline, of the connecting ring are symmetrically and fixedly connected with a blocking rod, one side of the second main pipeline is communicated with a liquid discharge pipe, a first valve is arranged on the liquid discharge pipe, a filter screen is arranged on one side, far away from the liquid discharge pipe, inside the second main pipeline, of the second main pipeline, the inner wall, between the filter screen and the liquid discharge pipe, of the second main pipeline is fixedly connected with a blocking ring, the top of the second main pipeline is communicated with a cleaning pipe, the bottom of the second main pipeline is communicated with a sewage discharge pipe, a second valve is arranged on the cleaning pipe, a third valve is arranged on, and an annular sealing groove is formed in one side, far away from the liquid discharge pipe, of the second main pipeline.

As a further aspect of the present invention: one side fixedly connected with first flange that first trunk line was kept away from to the feed liquor pipe, one side fixedly connected with second flange that second trunk line was kept away from to the fluid-discharge tube.

As a further aspect of the present invention: the inner wall of one side of the second main pipeline, which is far away from the liquid discharge pipe, and the outer surface of the connecting ring are provided with matched threads, the second main pipeline is in threaded connection with the connecting ring, and is matched with the first main pipeline, and the first main pipeline is communicated with the second main pipeline.

As a further aspect of the present invention: the filter screen and second trunk line looks adaptation, one side and the stop ring contact of filter screen, and the opposite side of filter screen and the one side contact that the go-between was kept away from to the stop rod.

As a further aspect of the present invention: the junction of the cleaning pipe and the second main pipeline is positioned between the liquid discharge pipe and the filter screen, and the junction of the sewage discharge pipe and the second main pipeline is positioned on one side of the filter screen far away from the cleaning pipe.

As a further aspect of the present invention: the annular sealing ring is located inside the annular sealing groove and matched with the annular sealing groove.

Compared with the prior art, the beneficial effects of the utility model are that: through the feed liquor pipe, the filter screen, the fluid-discharge tube, first valve, the clearance pipe, the second valve, cooperation between blow off pipe and the third valve is used, can carry out the edulcoration to the hot water in the heat supply process, have and to realize the back flush function, clear up it under the prerequisite of not dismantling the filter screen, the efficiency of clearance has been increased, and through ring seal, the annular seal groove, the go-between, first trunk line, the second trunk line, the barrier ring, cooperation between filter screen and the barrier rod is used, make things convenient for this filter to install and dismantle, conveniently overhaul.

Drawings

FIG. 1 is a schematic structural diagram of a backwashing filter for heat supply engineering.

Fig. 2 is a sectional view of a front view of a backwash filter for heating works.

Fig. 3 is an enlarged structural schematic diagram of a in the backwashing filter for heat supply engineering.

The labels in the figure are: 1. a first main pipe; 2. a second main pipe; 3. a liquid inlet pipe; 4. a first flange; 5. a liquid discharge pipe; 6. a second flange; 7. a first valve; 8. cleaning the pipe; 9. a second valve; 10. a blow-off pipe; 11. a third valve; 12. a connecting ring; 13. a filter screen; 14. a blocking ring; 15. a blocking lever; 16. an annular seal ring; 17. an annular seal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a backwash filter for heat supply engineering includes a first main pipe 1 and a second main pipe 2, one side of the first main pipe 1 is communicated with a liquid inlet pipe 3, and the other side of the first main pipe 1 is fixedly connected with a connecting ring 12, one side of the liquid inlet pipe 3 away from the first main pipe 1 is fixedly connected with a first flange 4, the upper and lower parts of one side of the connecting ring 12 away from the first main pipe 1 are symmetrically and fixedly connected with a blocking rod 15, one side of the second main pipe 2 is communicated with a liquid discharge pipe 5, the inner wall of one side of the second main pipe 2 away from the liquid discharge pipe 5 and the outer surface of the connecting ring 12 are both provided with matching threads, the second main pipe 2 is connected with the connecting ring 12 through threads, and the second main pipe 2 is adapted to the first main pipe 1, the first main pipe 1 is communicated with the second main pipe 2, one side, a first valve 7 is arranged on the liquid discharge pipe 5, a filter screen 13 is arranged on one side of the interior of the second main pipe 2 far away from the liquid discharge pipe 5, a stop ring 14 is fixedly connected to the inner wall of the second main pipe 2 between the filter screen 13 and the liquid discharge pipe 5, the filter screen 13 is matched with the second main pipe 2, one side of the filter screen 13 is contacted with the stop ring 14, the other side of the filter screen 13 is contacted with one side of a stop rod 15 far away from a connecting ring 12, the top of the second main pipe 2 is communicated with a cleaning pipe 8, the bottom of the second main pipe 2 is communicated with a sewage discharge pipe 10, a second valve 9 is arranged on the cleaning pipe 8, a third valve 11 is arranged on the sewage discharge pipe 10, the joint of the cleaning pipe 8 and the second main pipe 2 is arranged between the liquid discharge pipe 5 and the filter screen 13, the joint of the sewage discharge pipe 10 and the second main pipe 2 is arranged on one side of the filter screen 13 far away from the cleaning pipe 8, an, an annular sealing groove 17 is formed in one side, far away from the liquid discharge pipe 5, of the second main pipeline 2, the annular sealing ring 16 is located inside the annular sealing groove 17, and the annular sealing ring 16 is matched with the annular sealing groove 17.

The utility model discloses a theory of operation is: in the using process, the first valve 7 is controlled to be in an open state, the second valve 9 and the third valve 11 are controlled to be in a closed state, hot water enters the first main pipeline 1 through the liquid inlet pipe 3, impurity particles in the hot water are blocked through the filter screen 13, the hot water with the impurity particles removed is discharged for use through the liquid discharge pipe 5, when the filter screen 13 needs to be cleaned, the first valve 7 is closed, the second valve 9 and the third valve 11 are opened, the cleaning water is conveyed through the cleaning pipe 8, the cleaning water firstly enters the second main pipeline 2 and passes through the filter screen 13 to be discharged through the drain pipe 10, meanwhile, the impurity particles on the filter screen 13 are discharged through the drain pipe 10, the backwashing function is realized, the convenience of cleaning the filter screen 13 is increased, when the filter needs to be disassembled, the first main pipeline 1 is rotated to enable the connecting ring 12 to be screwed out of the second main pipeline 2, at this time, the annular sealing ring 16 is moved out from the inside of the annular sealing groove 17, the contact between the blocking rod 15 and the filter screen 13 is removed, the filter screen 13 can be taken out from the inside of the second main pipeline 2, the convenience of mounting and dismounting of the filter is increased, and the filter is convenient to overhaul.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Back flush filter for heat supply engineering includes first trunk line (1) and second trunk line (2), its characterized in that: one side of the first main pipeline (1) is communicated with a liquid inlet pipe (3), the other side of the first main pipeline (1) is fixedly connected with a connecting ring (12), the upper and lower symmetrical and fixed parts of one side of the connecting ring (12), which is far away from the first main pipeline (1), are fixedly connected with blocking rods (15), one side of the second main pipeline (2) is communicated with a liquid discharge pipe (5), a first valve (7) is arranged on the liquid discharge pipe (5), a filter screen (13) is arranged on one side, which is far away from the liquid discharge pipe (5), inside of the second main pipeline (2), is provided with a blocking ring (14), the inner wall of the second main pipeline (2), which is positioned between the filter screen (13) and the liquid discharge pipe (5), the top of the second main pipeline (2) is communicated with a cleaning pipe (8), the bottom of the second main pipeline (2) is communicated with a sewage discharge pipe (10), and a second valve (9), be provided with third valve (11) on blow off pipe (10), one side outer edge fixedly connected with ring packing circle (16) of feed liquor pipe (3) is kept away from in first trunk line (1), one side that fluid-discharge tube (5) were kept away from in second trunk line (2) is provided with annular seal groove (17).

2. A backwash filter for heat supply engineering according to claim 1, characterized in that: the liquid inlet pipe (3) is fixedly connected with a first flange (4) on one side far away from the first main pipeline (1), and the liquid outlet pipe (5) is fixedly connected with a second flange (6) on one side far away from the second main pipeline (2).

3. A backwash filter for heat supply engineering according to claim 1, characterized in that: the utility model discloses a pipeline, including second trunk line (2), the surface of one side inner wall of fluid-discharge tube (5) and go-between (12) is kept away from in second trunk line (2) all is provided with the assorted screw thread, second trunk line (2) passes through threaded connection with go-between (12), and second trunk line (2) and first trunk line (1) looks adaptation, first trunk line (1) and second trunk line (2) intercommunication.

4. A backwash filter for heat supply engineering according to claim 1, characterized in that: the filter screen (13) and second trunk line (2) looks adaptation, one side and the contact of barrier ring (14) of filter screen (13), and the opposite side of filter screen (13) and barrier rod (15) keep away from one side contact of go-between (12).

5. A backwash filter for heat supply engineering according to claim 1, characterized in that: the joint of the cleaning pipe (8) and the second main pipeline (2) is positioned between the liquid discharge pipe (5) and the filter screen (13), and the joint of the sewage discharge pipe (10) and the second main pipeline (2) is positioned on one side of the filter screen (13) far away from the cleaning pipe (8).

6. A backwash filter for heat supply engineering according to claim 1, characterized in that: the annular sealing ring (16) is located inside the annular sealing groove (17), and the annular sealing ring (16) is matched with the annular sealing groove (17).