CN210814170U

CN210814170U - Back-washing pre-filter for water heating installation

Info

Publication number: CN210814170U
Application number: CN201921498594.8U
Authority: CN
Inventors: 王功平; 王功强; 赵基; 程新显; 孟双江
Original assignee: Henan Shuizhuangyuan Pipe Industry Co ltd
Current assignee: Henan Shuizhuangyuan Pipe Industry Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-23
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a backwash pre-filter for water heating installation, which comprises a water inlet joint, a water outlet joint, a sewage outlet and a backwash upper cover, wherein the water inlet joint and the water outlet joint are respectively fixed at two ends of the backwash upper cover; the bottom end of the tank body is connected with a sewage discharge valve, the top end of the sewage discharge valve is fixedly connected with a rotating rod, and the outer wall of the rotating rod is uniformly wrapped with cleaning brushes; the middle of the sewage valve is provided with threads, and the bottom end of the sewage valve is provided with a second sealing ring; go out to connect and be equipped with the flow valve, the utility model discloses the sewage discharge port at current back flush leading filter is provided with blowdown valve, the utility model discloses be equipped with the flow valve on going out water and connecting, when using hot-water heating, can monitor the state of rivers, prevent the work of filtering layer overload, and then the life of extension filtering layer.

Description

Back-washing pre-filter for water heating installation

Technical Field

The utility model relates to a technical field of filter structure specifically is a leading filter of back flush for hot-water heating installation.

Background

The water heating is one of floor radiation heating, is the most popular heating mode at present, and has the advantages compared with electric heating. The water heating is realized by uniformly heating the whole ground through a ground coil pipe and hot water which circularly flows in the pipeline and a heating medium in a floor radiation layer, and conducting from bottom to top by utilizing the self heat storage and heat upward radiation rule of the ground so as to achieve the purpose of heating. Because the temperature gradient gradually decreased from the sole to the head is formed in the room, the comfortable feeling of warming the foot and cooling the head is provided for people. The ground radiation heating conforms to the body-building theory of 'warm feet and cool top' in traditional Chinese medicine, is the most comfortable heating mode at present, and is also a symbol of modern life quality.

In actual use, tap water often contains certain impurity in hydrologic cycle or water transportation, especially impurity is more when the pipeline is maintained, consequently add the leading filter of back flush on hot-water heating system, filter impurity such as silt, rust, red worm, colloid, play the effect of protection hot-water heating system, but the leading filter function of current back flush is more single, lean on water pressure to clear up the filter core in the filter completely, the cleaning performance is unsatisfactory, and can't judge whether the filter core in the filter has already need be washd, if clear up untimely can lead to the damage of filter core, the life-span of filter core has not only been shortened, still need extravagant manpower and materials to maintain.

Disclosure of Invention

The utility model discloses the purpose is solved current leading filter function of back flush and is more single, leans on water pressure to clear up the filter core in the filter completely, and the cleaning effect is unsatisfactory, and can't judge whether the filter core in the filter need wash, if clear up the problem that untimely can lead to the damage of filter core.

In order to realize the purpose, the technical scheme of the utility model is that:

a backwashing prefilter for water heating installation comprises a water inlet joint, a water outlet joint, a sewage discharge outlet and a backwashing upper cover, wherein the water inlet joint and the water outlet joint are respectively fixed at two ends of the backwashing upper cover;

the bottom end of the tank body is in threaded connection with a sewage discharge valve, the center of the top end of the sewage discharge valve is fixedly connected with a rotating rod, and the outer wall of the rotating rod is uniformly wrapped with cleaning brushes;

the middle of the sewage valve is provided with threads, and the bottom end of the sewage valve is provided with a second sealing ring; and a flow valve is arranged on the water outlet connector to detect the water flow flowing out of the water outlet connector.

Further, be provided with the sewage export on the jar body, the sewage export bottom is provided with the screw thread.

Furthermore, a shunt cavity communicated with the water inlet joint and the water outlet structure is arranged in the backwashing upper cover, a lower outlet is arranged at the bottom of the shunt cavity, an upper outlet is arranged at the top of the shunt cavity, the lower outlet is communicated with the tank body, the upper outlet is communicated with the filter cavity, and a valve mechanism positioned in the shunt cavity is arranged in the backwashing upper cover to switch the upper outlet and the lower outlet of the shunt cavity.

Furthermore, the valve mechanism comprises a handle, a valve rod and a valve core corresponding to the upper outlet and the lower outlet of the flow dividing cavity in shape, the valve core is arranged in the back washing upper cover in a lifting limiting manner, a first sealing ring which can be connected with the upper outlet or the lower outlet of the flow dividing cavity in a sealing manner is arranged on the valve core, and the valve core can be lifted and stopped at the upper outlet or the lower outlet of the flow dividing cavity, so that the rest part of the flow dividing cavity is opened.

Furthermore, a valve cavity is arranged on the backwashing upper cover, the valve core is installed in the valve cavity, an internal thread cavity is arranged in the valve core, the valve rod is rotatably fixed on the backwashing upper cover, the valve rod extends into the internal thread cavity and is fixed in a threaded connection mode, and the valve rod can be driven to rotate by rotating the handle so as to control the valve core to do lifting motion.

Compared with the prior art, the utility model has the advantages and positive effect be:

firstly, the method comprises the following steps: the utility model is provided with a sewage discharge valve at the sewage discharge port of the existing backwashing pre-filter, the bottom end of the tank body is connected with the sewage discharge valve through a thread, the central position of the top end of the sewage discharge valve is fixedly connected with a rotary rod, and the outer wall of the rotary rod is uniformly wrapped with cleaning brushes; the middle of the sewage valve is provided with threads, and the bottom end of the sewage valve is provided with a second sealing ring; the cleaning agent is used for cleaning and cleaning dirt attached to the filter layer in the filtering process, and compared with water cleaning, the cleaning process is more thorough.

Secondly, the method comprises the following steps: the utility model discloses be equipped with the flow valve on water connectors, when using the hot-water heating, can open the valve of water inlet to the biggest, observe the flow valve, if the rivers undersize, the jam just has appeared in the back flush leading filter, needs the clearance, and the state of control filter layer that can be fine prevents the work of filtering layer overload, and then prolongs the life of filtering layer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a water inlet joint; 2. a first seal ring; 3. a valve core; 4. a valve stem; 5. a handle; 6. a shunting cavity; 7. an upper outlet; 8. a flow valve; 9. a water outlet joint; 10. back flushing the upper cover; 11. rotating the rod; 12. a flow-through channel; 13. a filter chamber; 14. a sewage outlet; 15. a blowdown valve; 16. a second seal ring; 17. a filtering layer; 18. a tank body; 19. cleaning a brush; 20. a lower outlet.

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 of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by a person of ordinary skill in the art without creative efforts shall be included in the protection scope of the present invention.

As shown in fig. 1, a backwash pre-filter for water heating installation comprises a water inlet joint 1, a water outlet joint 9, a sewage discharge outlet and a backwash upper cover 10, wherein the water inlet joint 1 and the water outlet joint are respectively fixed at two ends of the backwash upper cover 10, the backwash upper cover 10 is communicated with a tank 18, a filter layer 17 is arranged in the tank 18, and a filter cavity 13 is formed in the filter layer 17;

the bottom end of the tank body 18 is in threaded connection with a sewage discharge valve 15, the center of the top end of the sewage discharge valve 15 is fixedly connected with a rotating rod 11, and the outer wall of the rotating rod 11 is uniformly wrapped with cleaning brushes 19;

the middle of the sewage discharge valve 15 is provided with threads, and the bottom end of the sewage discharge valve 15 is provided with a second sealing ring 16; and a flow valve 8 is arranged on the water outlet joint 9 so as to detect the water flow flowing out of the water outlet joint 9.

In this embodiment, the tank 18 is provided with a sewage outlet 14, and the bottom end of the sewage outlet 14 is provided with threads.

In this embodiment, a diversion cavity 6 communicated with the water inlet connector 1 and the water outlet structure is arranged in the backwashing upper cover 10, a lower outlet 20 is arranged at the bottom of the diversion cavity 6, an upper outlet 7 is arranged at the top of the diversion cavity 6, the lower outlet 20 is communicated with the tank body 18, the upper outlet 7 is communicated with the filtering cavity 13, and a valve mechanism located in the diversion cavity 6 is arranged in the backwashing upper cover 10 to switch the upper outlet 7 and the lower outlet 20 of the diversion cavity 6.

In this embodiment, the valve mechanism includes a handle 5, a valve rod 4, and a valve core 3 corresponding to the upper outlet 7 and the lower outlet 20 in the diversion cavity 6 in shape, the valve core 3 is disposed in the backwash upper cover 10 in a liftable and lowerable limiting manner, the valve core 3 is provided with a first sealing ring 2 capable of being hermetically connected with the upper outlet 7 or the lower outlet 20 of the diversion cavity 6, and the valve core 3 is lifted and lowerable to block the upper outlet 7 or the lower outlet 20 of the diversion cavity 6, so as to open the remaining part of the diversion cavity 6.

In this embodiment, a valve cavity is formed in the backwash upper cover 10, the valve core 3 is installed in the valve cavity, an internal thread cavity is formed in the valve core 3, the valve rod 4 is rotatably fixed on the backwash upper cover 10, the valve rod 4 extends into the internal thread cavity and is fixed by screwing, and the handle 5 is rotated to drive the valve rod 4 to rotate so as to control the valve core 3 to move up and down.

In the backwash state, the lower outlet 20 of the flow-through chamber 6 is open and the upper outlet 7 is closed: water is introduced through the water inlet joint 1, passes through the back washing upper cover 10, passes through the lower outlet 20 of the diversion cavity 6, opens the sewage discharge port, and is communicated with the atmosphere or a sewage discharge pipe, the water passes through the filter layer 17 to the tank body 18, the filter element is washed through different internal and external pressures, and the wastewater is discharged through the sewage discharge port.

In the filtering state, the lower outlet 20 of the flow-through chamber 6 is closed, the upper outlet 7 is open: water is introduced through the water inlet connector 1, passes through the back-flushing type upper cover, passes through the upper outlet 7 of the diversion cavity 6, passes through the filtering layer 17, flows through the circulation channel 12, is filtered through the filtering layer 17, and is finally sent to the water heating system through the water outlet connector 9, and a sewage discharge port is closed in the process, so that the filtering is realized.

When the flowmeter prompts that the filter layer 17 needs to be cleaned, the blowdown valve 15 is rotated, so that the cleaning brush 19 cleans dirt on the filter layer 17, and the dirt is cleaned by punching with water, thereby achieving a better cleaning effect.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and the principles of the invention are not limited thereto, except as by the appended claims and their equivalents.

Claims

1. The utility model provides a leading filter of back flush for hot-water heating installation, includes water supply connector, water connectors, blowdown export and back flush upper cover, its characterized in that: the water inlet joint and the water outlet joint are respectively fixed at two ends of the backwashing upper cover, the backwashing upper cover is communicated with a tank body, a filter layer is arranged in the tank body, and a filter cavity is formed in the filter layer;

the middle of the sewage valve is provided with threads, and the bottom end of the sewage valve is provided with a second sealing ring;

and a flow valve is arranged on the water outlet connector to detect the water flow flowing out of the water outlet connector.

2. The backwash pre-filter for water heating installation as set forth in claim 1, wherein: the tank body is provided with a sewage outlet, and the bottom end of the sewage outlet is provided with threads.

3. The backwash pre-filter for water heating installation as set forth in claim 1, wherein: the backwashing water tank is characterized in that a flow dividing cavity communicated with the water inlet joint and the water outlet structure is arranged in the backwashing upper cover, a lower outlet is arranged at the bottom of the flow dividing cavity, an upper outlet is arranged at the top of the flow dividing cavity, the lower outlet is communicated with the tank body, the upper outlet is communicated with the filtering cavity, and a valve mechanism positioned in the flow dividing cavity is arranged in the backwashing upper cover to switch the upper outlet and the lower outlet of the flow dividing cavity.

4. The backwash pre-filter for water heating installation as set forth in claim 3, wherein: the valve mechanism comprises a handle, a valve rod and a valve core corresponding to the upper outlet and the lower outlet in the flow dividing cavity in shape, the valve core is arranged in the back washing upper cover in a lifting limiting mode, the valve core can be lifted and lowered to block the upper outlet or the lower outlet of the flow dividing cavity, and a first sealing ring which can be in sealing connection with the upper outlet or the lower outlet of the flow dividing cavity is arranged on the valve core so that the rest part of the flow dividing cavity can be opened.

5. The pre-filter backwash for water heating installation as set forth in claim 4, wherein: the back washing upper cover is provided with a valve cavity, the valve core is installed in the valve cavity, an internal thread cavity is formed in the valve core, the valve rod is rotatably fixed on the back washing upper cover, the valve rod extends into the internal thread cavity and is fixedly connected with the internal thread cavity in a threaded mode, and the valve rod can be driven to rotate by rotating the handle so as to control the valve core to do lifting motion.