Backwash filter

Abstract

The utility model discloses a backwash filter, which specifically relates to the technical field of filters, including a housing, wherein a filter chamber and a liquid storage chamber are provided inside the housing, a filter element for filtering is fixedly provided on the inner wall of the filter chamber, a liquid inlet pipe is fixedly passed through the front end of the housing, a sewage pipe is fixedly passed through the bottom of the housing, the sewage pipe and the liquid inlet pipe are both connected to the inside of the filter chamber, and a flushing component is provided inside the housing. The utility model stores part of the filtered clean water through the liquid storage chamber, and the remaining clean water is output through the water outlet pipe at the bottom end of the three-way pipe, thereby completing the filtration treatment of the sewage, and then a second submersible pump is used to transport the clean water in the liquid storage chamber to the water chamber, and at the same time, the electric push rod drives the ring plate to move forward and backward to spray water to flush the outer wall of the filter element, thereby completing the backwashing of the filter element. Compared with the prior art, the backwashing effect is good, and there is no need to connect another water source to the housing, which can reduce the waste of water resources and the installation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, more specifically to a backwashing filter. Background Art

[0002] Modern industry and various occasions are equipped with large or medium-sized cooling water systems to meet the cooling requirements of various equipment, such as central air-conditioning systems, large hydraulic systems, laboratories, etc. These cooling water systems, due to continuous operation, will produce a large number of microorganisms and impurities in the pipelines, both from inside and outside the pipelines, which will affect the effect of cooling water, and the equipment will have problems such as poor cooling effect and pipeline blockage. Filters are usually used for water treatment, and the suspended solids and impurities in the water are removed by the filter element.

[0003] At present, in order to facilitate the cleaning of the filter element in the filter, a Chinese patent with the prior art announcement number CN219539529U discloses a backwash filter. This utility model can clean the filter element without opening the filter, saving a lot of manpower and material resources. At the same time, it reduces oil emission pollution. The entire backwash operation is simple to operate and the cleaning effect is obvious.

[0004] However, the above-mentioned prior art still has the following problems when used: when the filter element is backwashed with nitrogen and steam, an external pipeline is required on the filter, which not only increases the use cost, but also increases the installation cost of the filter, and the flushing effect of flushing with nitrogen and steam is poor. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a backwash filter, which stores part of the filtered clean water through a liquid storage chamber, and the remaining clean water is output through a water outlet pipe at the bottom end of the three-way pipe. A second submersible pump is used to transport the clean water in the liquid storage chamber to the water chamber. At the same time, an electric push rod drives the ring plate to move back and forth to spray water to wash the outer wall of the filter element, thereby completing the backwashing of the filter element. The backwashing effect is good, and there is no need to connect another water source to the shell, which can reduce the waste of water resources and the installation cost, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a backwash filter, comprising a shell, a filter chamber and a liquid storage chamber distributed front and back are provided inside the shell, a filter element for filtering is fixedly provided on the inner wall of the filter chamber, a liquid inlet pipe is fixedly penetrated through the front end of the shell, a sewage pipe is fixedly penetrated through the bottom of the shell, the sewage pipe and the liquid inlet pipe are both connected with the inside of the filter chamber, a flushing component is provided inside the shell, the flushing component comprises a ring plate, the ring plate is sleeved on the outside of the filter element, a water cavity is provided inside the ring plate, a plurality of water spray holes are provided on the outer wall and the inner wall of the ring plate, and the plurality of water spray holes are connected with the inside of the water cavity, two electric push rods are fixedly provided on the side of the ring plate away from the liquid inlet pipe, the two electric push rods are fixedly embedded in the shell, and an infusion component is embedded in the shell for conveying filtered clean water.

[0007] In a preferred embodiment, the infusion assembly includes a first submersible pump and a second submersible pump, the second submersible pump and the first submersible pump are both fixedly embedded in the shell, and the second submersible pump is arranged behind the first submersible pump to avoid mutual obstruction between the second submersible pump and the first submersible pump.

[0008] In a preferred embodiment, the liquid inlet of the first submersible pump passes through the shell and extends to the inside of the filter element, the liquid outlet of the first submersible pump is fixedly connected with a three-way pipe, the rear end of the three-way pipe is connected with the inside of the liquid storage cavity through an infusion tube, the bottom end of the three-way pipe is fixedly connected with a water outlet pipe, the bottom end of the water outlet pipe passes through the shell and extends out from under the shell, the liquid outlet of the second submersible pump is connected with the water cavity through a hose, and water is automatically delivered with the help of the second submersible pump without the need for manual operation.

[0009] In a preferred embodiment, a first solenoid valve is fixedly provided on the infusion tube and the water outlet pipe for controlling the opening and closing of the infusion tube and the water outlet pipe. A flow meter is fixedly provided on the infusion tube, and the flow meter is arranged behind the first solenoid valve. With the help of the flow meter, the amount of clean water delivered to the liquid storage chamber can be detected to avoid excessive amount of clean water.

[0010] In a preferred embodiment, the liquid inlet of the second submersible pump passes through the shell and extends into the liquid storage chamber, the liquid outlet of the second submersible pump is connected to the inside of the water chamber through a hose, and the second submersible pump is used to automatically transport clean water for backwashing.

[0011] In a preferred embodiment, the liquid inlet pipe and the sewage discharge pipe are both fixedly provided with a second solenoid valve for controlling the opening and closing of the liquid inlet pipe and the sewage discharge pipe.

[0012] In a preferred embodiment, a filter screen is fixedly provided inside each water spray hole to prevent impurities from clogging the water spray hole. A mounting plate is fixedly provided on the outer wall of one side of the shell, and two symmetrically distributed mounting holes are provided on the mounting plate for fixing the shell.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model filters impurities in sewage through a filter element, and the filtered clean water is sucked by a first submersible pump, part of the clean water flows into the liquid storage chamber through the three-way pipe, and the remaining clean water is output through the water outlet pipe at the bottom end of the three-way pipe, thereby completing the filtering treatment of the sewage, and then the second submersible pump is used to transport the clean water in the liquid storage chamber to the water chamber, and at the same time, the electric push rod drives the ring plate to move back and forth to spray water to wash the outer wall of the filter element, thereby completing the backwashing of the filter element. Compared with the prior art, the backwashing effect is good, and there is no need to connect another water source to the shell, which can reduce the waste of water resources and reduce the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the shell of the utility model;

[0017] Figure 3 For the utility model Figure 2 Main view;

[0018] Figure 4 It is a top sectional view of the utility model;

[0019] Figure 5 It is a cross-sectional view of the shell of the utility model;

[0020] Figure 6 It is a side sectional view of the ring plate of the present utility model.

[0021] The reference numerals are: 1, housing; 2, filter chamber; 3, liquid storage chamber; 4, filter element; 5, liquid inlet pipe; 6, sewage pipe; 7, flushing assembly; 8, infusion assembly; 9, first solenoid valve; 10, flow meter; 11, second solenoid valve; 12, filter screen; 13, mounting plate; 14, mounting hole;

[0022] 701, ring plate; 702, water cavity; 703, water spray hole; 704, electric push rod;

[0023] 801, first submersible pump; 802, second submersible pump; 803, three-way pipe; 804, infusion pipe; 805, water outlet pipe; 806, hose. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-6 The utility model provides a backwash filter, including a housing 1, wherein a filter chamber 2 and a liquid storage chamber 3 are arranged in the housing 1, a filter element 4 for filtering is fixedly arranged on the inner wall of the filter chamber 2, a liquid inlet pipe 5 is fixedly penetrated through the front end of the housing 1, and a sewage pipe 6 is fixedly penetrated through the bottom of the housing 1, and the sewage pipe 6 and the liquid inlet pipe 5 are both connected with the inside of the filter chamber 2;

[0026] In order to facilitate flushing the filter element 4, a flushing assembly 7 is provided inside the housing 1, and the flushing assembly 7 includes a ring plate 701, and the ring plate 701 is sleeved on the outside of the filter element 4, and a water cavity 702 is provided inside the ring plate 701. The outer wall of the ring plate 701 and the inner wall of the ring plate 701 are both provided with a plurality of water spray holes 703, and the plurality of water spray holes 703 are all connected to the inside of the water cavity 702. Two electric push rods 704 are fixedly provided on the side of the ring plate 701 away from the liquid inlet pipe 5, and the two electric push rods 704 are fixedly embedded in the housing 1, so as to facilitate driving the ring plate 701 to move forward and backward;

[0027] In order to facilitate the suction of filtered clean water, an infusion assembly 8 is provided inside the housing 1, and the infusion assembly 8 includes a first submersible pump 801 and a second submersible pump 802, the second submersible pump 802 and the first submersible pump 801 are both fixedly embedded inside the housing 1, and the second submersible pump 802 is arranged behind the first submersible pump 801, and the first submersible pump 801, the second submersible pump 802, and the two electric push rods 704 are separately arranged inside the housing 1;

[0028] Specifically, Figure 4 As shown, the liquid inlet of the first submersible pump 801 passes through the housing 1 and extends to the inside of the filter element 4, the liquid outlet of the first submersible pump 801 is fixedly connected with a three-way pipe 803, the rear end of the three-way pipe 803 is connected to the inside of the liquid storage chamber 3 through the infusion pipe 804, the bottom end of the three-way pipe 803 is fixedly connected with a water outlet pipe 805, the bottom end of the water outlet pipe 805 passes through the housing 1 and extends out from the bottom of the housing 1, the liquid inlet of the second submersible pump 802 passes through the housing 1 and extends to the inside of the liquid storage chamber 3, and the liquid outlet of the second submersible pump 802 is connected to the inside of the water chamber 702 through a hose 806, which is used to transport filtered water into the water chamber 702;

[0029] In addition, a first solenoid valve 9 is fixedly provided on the infusion tube 804 and the outlet pipe 805 for controlling the opening and closing of the infusion tube 804 and the outlet pipe 805. A flow meter 10 is fixedly provided on the infusion tube 804. The flow meter 10 is arranged behind the first solenoid valve 9. With the help of the flow meter 10, the amount of clean water delivered to the liquid storage chamber 3 can be detected to avoid excessive amount of clean water. A second solenoid valve 11 is fixedly provided on the liquid inlet pipe 5 and the sewage pipe 6 to facilitate the control of the opening and closing of the liquid inlet pipe 5 and the sewage pipe 6.

[0030] When in use, the user first connects the liquid inlet pipe 5, the water outlet pipe 805 and the sewage pipe 6 to the pipeline respectively, and the sewage flows into the filter chamber 2 through the liquid inlet pipe 5, and is sucked by the first submersible pump 801 after being filtered by the filter element 4. Part of the clean water flows into the liquid storage chamber 3 through the liquid infusion pipe 804 at the rear end of the three-way pipe 803, and the remaining clean water is output through the water outlet pipe 805 at the bottom end of the three-way pipe 803, thereby completing the filtration treatment of the sewage.

[0031] When the filter element 4 needs to be cleaned, first close the second solenoid valve 11 on the liquid inlet pipe 5, then use the second submersible pump 802 to suck the clean water in the liquid storage chamber 3, and the clean water is transported to the water chamber 702 through the liquid outlet of the second submersible pump 802 and the hose 806. At the same time, use two electric push rods 704 to drive the ring plate 701 to move back and forth, and the clean water sprayed from the water spray hole 703 rinses the outer wall of the filter element 4, so that the impurities on the outer wall of the filter element 4 flow into the drain pipe 6 for discharge, thereby completing the backwashing of the filter element 4. With the help of the liquid storage chamber 3 to store the filtered clean water, there is no need to connect another water source to the shell 1, which can reduce the waste of water resources and reduce the installation cost.

[0032] Furthermore, a filter screen 12 is fixedly provided inside each water spray hole 703, and the filter screen 12 can block impurities in the sewage to prevent the impurities from clogging the water spray hole 703;

[0033] In addition, a mounting plate 13 is fixedly provided on the outer wall of one side of the housing 1 , and two symmetrically distributed mounting holes 14 are provided on the mounting plate 13 . Bolts are passed through the mounting holes 14 to facilitate fixing the backwashing filter.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A backwash filter, comprising a housing (1), characterized in that: The shell (1) is provided with a filter chamber (2) and a liquid storage chamber (3) arranged front and rear, the inner wall of the filter chamber (2) is fixedly provided with a filter element (4) for filtering, the front end of the shell (1) is fixedly penetrated by a liquid inlet pipe (5), the bottom of the shell (1) is fixedly penetrated by a sewage discharge pipe (6), and the sewage discharge pipe (6) and the liquid inlet pipe (5) are both connected to the inside of the filter chamber (2); A flushing assembly (7) is provided inside the housing (1), and the flushing assembly (7) comprises a ring plate (701), the ring plate (701) is sleeved on the outside of the filter element (4), a water cavity (702) is provided inside the ring plate (701), a plurality of water spray holes (703) are provided on the outer wall of the ring plate (701) and the inner wall of the ring plate (701), and the plurality of water spray holes (703) are communicated with the inside of the water cavity (702), and two electric push rods (704) are fixedly provided on a side of the ring plate (701) away from the liquid inlet pipe (5), and the two electric push rods (704) are fixedly embedded inside the housing (1); An infusion assembly (8) is embedded inside the housing (1) for delivering filtered clean water.

2. The backwash filter according to claim 1, characterized in that: The infusion assembly (8) comprises a first submersible pump (801) and a second submersible pump (802); the second submersible pump (802) and the first submersible pump (801) are both fixedly embedded in the housing (1), and the second submersible pump (802) is arranged behind the first submersible pump (801).

3. The backwash filter according to claim 2, characterized in that: The liquid inlet of the first submersible pump (801) passes through the housing (1) and extends to the interior of the filter element (4); the liquid outlet of the first submersible pump (801) is fixedly connected to a three-way pipe (803); the rear end of the three-way pipe (803) is connected to the interior of the liquid storage chamber (3) via a liquid infusion pipe (804); the bottom end of the three-way pipe (803) is fixedly connected to a water outlet pipe (805); the bottom end of the water outlet pipe (805) passes through the housing (1) and extends out from below the housing (1).

4. The backwash filter according to claim 3, characterized in that: The infusion tube (804) and the water outlet tube (805) are both fixedly provided with a first electromagnetic valve (9) for controlling the opening and closing of the infusion tube (804) and the water outlet tube (805). The infusion tube (804) is also fixedly provided with a flow meter (10), and the flow meter (10) is arranged behind the first electromagnetic valve (9).

5. The backwash filter according to claim 2, characterized in that: The liquid inlet of the second submersible pump (802) passes through the housing (1) and extends to the interior of the liquid storage chamber (3); the liquid outlet of the second submersible pump (802) is connected to the interior of the water chamber (702) via a hose (806).

6. The backwash filter according to claim 3, characterized in that: The liquid inlet pipe (5) and the sewage discharge pipe (6) are both fixedly provided with a second solenoid valve (11) for controlling the opening and closing of the liquid inlet pipe (5) and the sewage discharge pipe (6).

7. The backwash filter according to claim 1, characterized in that: A filter screen (12) is fixedly arranged inside each water spray hole (703) to prevent impurities from clogging the water spray hole (703); a mounting plate (13) is fixedly arranged on an outer wall of one side of the housing (1); and two symmetrically distributed mounting holes (14) are provided on the mounting plate (13).

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