Device for realizing double functions of backwashing pump

Abstract

The utility model discloses a device for realizing double functions of a backwashing pump, which belongs to the technical field of circulating water systems and comprises a backwashing pump main body, a first three-way pipe is fixed at the input end of the backwashing pump main body, a first valve is fixed at one end of the first three-way pipe, and a second valve is fixed at the other end of the first three-way pipe. A first three-way pipe is fixed at the output end of the backwashing pump main body, a second valve is fixed at the other end of the first three-way pipe, a sand mold filter is fixed at one end of the second valve, a second three-way pipe is fixed at the output end of the backwashing pump main body, a third valve is fixed at one end of the second three-way pipe, and a fourth valve is fixed at the other end of the second three-way pipe; and an electric push rod is fixed on the top surface of the first three-way pipe. According to the utility model, when the water supply amount is slightly insufficient, water is supplied to the circulating water pump passage through the backwashing pump, so that the problems that when the water supply amount is slightly insufficient, the water supply amount greatly exceeds the required amount after another circulating water pump is started, and the power consumption is relatively uneconomical are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circulating water systems, and more specifically, particularly relates to a device for realizing the dual functions of a backwash pump. Background Art

[0002] The backwash pump is the front-end equipment of the sand filter. The specification is 75kw and the maximum flow rate is about 454m 3 / h. When the water quality is poor, part of the circulating water is pumped out from the circulating water pool and sent to the sand filter. After filtering out most of the impurities, it is sent back to the circulating water pool to purify the circulating water. The existing backwash pump only purifies the circulating water. The circulating water system has three circulating water pumps, two for use and one for standby, which are switched regularly. When the water supply is slightly insufficient, considering that the water supply will greatly exceed the requirement after starting another circulating water pump, and the power consumption is relatively uneconomical, a device that realizes the dual functions of the backwash pump is proposed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a device that realizes the dual functions of a backwash pump. When the water supply is slightly insufficient, the backwash pump is used to supply water to the circulating water pump passage, so as to solve the problem that the existing backwash pump proposed in the above background technology only plays the role of purifying circulating water. The circulating water system has three circulating water pumps, two of which are used and one is in standby and are regularly switched for operation. When the water supply is slightly insufficient, it is considered that after starting another circulating water pump, the water supply will greatly exceed the required amount, and the power consumption is relatively uneconomical.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for realizing the dual functions of a backwash pump, comprising a backwash pump main body, a first three-way pipe is fixed to the input end of the backwash pump main body, a first valve is fixed to one end of the first three-way pipe, a second valve is fixed to the other end of the first three-way pipe, a sand filter is fixed to one end of the second valve, a second three-way pipe is fixed to the output end of the backwash pump main body, a third valve is fixed to one end of the second three-way pipe, a fourth valve is fixed to the other end of the second three-way pipe, an electric push rod is fixed to the top surface of the first three-way pipe, a first connecting rod is fixed to the output end of the electric push rod, one end of the first connecting rod is rotatably connected to the second connecting rod, one end of the second connecting rod is rotatably connected to the third connecting rod, both ends of the third connecting rod are rotatably connected to the fourth connecting rod, the other end of the first connecting rod is rotatably connected to the fifth connecting rod, one end of the fifth connecting rod is rotatably connected to the sixth connecting rod, and both ends of the sixth connecting rod are rotatably connected to the seventh connecting rod.

[0005] As a preferred technical solution of the present utility model, the two fourth connecting rods and the third connecting rod form a parallelogram structure.

[0006] As a preferred technical solution of the present utility model, the two seventh connecting rods and the sixth connecting rod form a parallelogram structure.

[0007] As a preferred technical solution of the present utility model, the fourth connecting rod and the seventh connecting rod are arranged in opposite directions.

[0008] As a preferred technical solution of the utility model, one end of the two fourth connecting rods is fixedly connected to the handle end of the first valve and the handle end of the second valve respectively.

[0009] As a preferred technical solution of the utility model, one end of the two seventh connecting rods is fixedly connected to the handle ends of the second valve and the fourth valve respectively.

[0010] As a preferred technical solution of the present utility model, the second connecting rod and the fifth connecting rod are arranged in opposite directions.

[0011] The utility model provides a device that realizes the dual functions of a backwash pump, which has the following beneficial effects:

[0012] 1. The device realizing the dual functions of the backwash pump supplies water to the circulation water pump passage through the backwash pump when the water supply is slightly insufficient, thereby solving the problem that when the water supply is slightly insufficient, the water supply will greatly exceed the required amount after starting another circulation water pump, and the power consumption is relatively uneconomical.

[0013] 2. The device realizes the dual function of the backwash pump. The second valve and the fourth valve are respectively connected to the water storage tank and the sand filter. This passage is for filtering circulating water. The first valve and the second valve are directly connected to the circulating water pump passage, so that the circulating water no longer passes through the sand filter, avoiding the problem of resistance generated by the sand filter and causing a decrease in water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a device for realizing the dual functions of a backwash pump.

[0015] Figure 2 The utility model is a device for realizing the dual functions of a backwash pump Figure 1 A is an enlarged schematic diagram.

[0016] Figure 3 The utility model is a device for realizing the dual functions of a backwash pump Figure 1 The enlarged schematic diagram of point B in FIG.

[0017] In the figure: 1. backwash pump body; 2. first three-way pipe; 3. first valve; 4. second valve; 5. sand filter; 6. second three-way pipe; 7. third valve; 8. fourth valve; 9. electric push rod; 10. first connecting rod; 11. second connecting rod; 12. third connecting rod; 13. fourth connecting rod; 14. fifth connecting rod; 15. sixth connecting rod; 16. seventh connecting rod. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figures 1 to 3The utility model provides a technical solution: a device for realizing the dual functions of a backwash pump, comprising a backwash pump body 1, a first three-way pipe 2 is fixed to the input end of the backwash pump body 1, a first valve 3 is fixed to one end of the first three-way pipe 2, a second valve 4 is fixed to the other end of the first three-way pipe 2, a sand filter 5 is fixed to one end of the second valve 4, a second three-way pipe 6 is fixed to the output end of the backwash pump body 1, a third valve 7 is fixed to one end of the second three-way pipe 6, a fourth valve 8 is fixed to the other end of the second three-way pipe 6, an electric push rod 9 is fixed to the top surface of the first three-way pipe 2, a first connecting rod 10 is fixed to the output end of the electric push rod 9, one end of the first connecting rod 10 is rotatably connected to the second connecting rod 11, and one end of the second connecting rod 11 is rotatably connected to the third connecting rod 12, both ends of the third connecting rod 12 are rotatably connected to the fourth connecting rod 13, the other end of the first connecting rod 10 is rotatably connected to the fifth connecting rod 14, one end of the fifth connecting rod 14 is rotatably connected to the sixth connecting rod 15, both ends of the sixth connecting rod 15 are rotatably connected to the seventh connecting rod 16, the two fourth connecting rods 13 form a parallelogram structure with the third connecting rod 12, the two seventh connecting rods 16 form a parallelogram structure with the sixth connecting rod 15, the fourth connecting rod 13 and the seventh connecting rod 16 are arranged in opposite directions, one end of the two fourth connecting rods 13 are fixedly connected to the handle ends of the first valve 3 and the second valve 4 respectively, one end of the two seventh connecting rods 16 are fixedly connected to the handle ends of the second valve 4 and the fourth valve 8 respectively, and the second connecting rod 11 is arranged in opposite directions to the fifth connecting rod 14;

[0022] When the water supply is slightly insufficient, the electric push rod 9 pushes the first connecting rod 10 to move, and the first connecting rod 10 pulls the third connecting rod 12 and the sixth connecting rod 15 through the second connecting rod 11 and the fifth connecting rod 14. Since the fourth connecting rod 13 and the third connecting rod 12 form a parallelogram structure, and the seventh connecting rod 16 and the sixth connecting rod 15 form a parallelogram structure, the fourth connecting rod 13 and the seventh connecting rod 16 are driven to rotate. Since the fourth connecting rod 13 and the seventh connecting rod 16 are arranged in opposite directions, the fourth connecting rod 13 and the seventh connecting rod 16 rotate in opposite directions, and the two fourth connecting rods 13 open the first valve 3 and the second valve 4, and the two fourth connecting rods 13 open the first valve 3 and the second valve 4. The seven-link 16 closes the second valve 4 and the fourth valve 8. The second valve 4 and the fourth valve 8 are connected to the water storage tank and the sand filter 5 respectively. This passage is for filtering circulating water. The first valve 3 and the second valve 4 are directly connected to the circulating water pump passage, so that the circulating water no longer passes through the sand filter 5, avoiding the sand filter 5 from generating resistance and causing the problem of reduced water supply. When the water supply is slightly insufficient, the backwash pump is used to supply water to the circulating water pump passage, thereby solving the problem that when the water supply is slightly insufficient, the water supply will greatly exceed the required amount after starting another circulating water pump, and the power consumption is relatively uneconomical.

[0023] Specific usage and function of this embodiment: When the water supply is slightly insufficient, the utility model pushes the first connecting rod 10 to move through the electric push rod 9, and the first connecting rod 10 pulls the third connecting rod 12 and the sixth connecting rod 15 through the second connecting rod 11 and the fifth connecting rod 14. Since the fourth connecting rod 13 and the third connecting rod 12 form a parallelogram structure, and the seventh connecting rod 16 and the sixth connecting rod 15 form a parallelogram structure, the fourth connecting rod 13 and the seventh connecting rod 16 are driven to rotate. Since the fourth connecting rod 13 and the seventh connecting rod 16 are arranged in opposite directions, the fourth connecting rod 13 and the seventh connecting rod 16 rotate in opposite directions. The two fourth connecting rods 13 open the first valve 3 and the second valve 4, and the two seventh connecting rods 16 close the second valve 4 and the fourth valve 8. The second valve 4 and the fourth valve 8 are respectively connected to the water storage tank and the sand filter 5. This passage is for filtering circulating water. The first valve 3 and the second valve 4 are directly connected to the circulating water pump passage, and the circulating water pump passage is supplied with water through the backwash pump.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for realizing the dual functions of a backwash pump, comprising a backwash pump body (1), characterized in that: A first three-way pipe (2) is fixed to the input end of the backwash pump body (1), a first valve (3) is fixed to one end of the first three-way pipe (2), a second valve (4) is fixed to the other end of the first three-way pipe (2), a sand filter (5) is fixed to one end of the second valve (4), a second three-way pipe (6) is fixed to the output end of the backwash pump body (1), a third valve (7) is fixed to one end of the second three-way pipe (6), a fourth valve (8) is fixed to the other end of the second three-way pipe (6), and an electric push valve (9) is fixed to the top surface of the first three-way pipe (2). A rod (9), a first connecting rod (10) is fixed to the output end of the electric push rod (9), one end of the first connecting rod (10) is rotatably connected to the second connecting rod (11), one end of the second connecting rod (11) is rotatably connected to the third connecting rod (12), both ends of the third connecting rod (12) are rotatably connected to the fourth connecting rod (13), the other end of the first connecting rod (10) is rotatably connected to the fifth connecting rod (14), one end of the fifth connecting rod (14) is rotatably connected to the sixth connecting rod (15), and both ends of the sixth connecting rod (15) are rotatably connected to the seventh connecting rod (16).

2. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: The two fourth connecting rods (13) and the third connecting rod (12) form a parallelogram structure.

3. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: The two seventh connecting rods (16) and the sixth connecting rod (15) form a parallelogram structure.

4. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: The fourth connecting rod (13) and the seventh connecting rod (16) are arranged in opposite directions.

5. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: One end of the two fourth connecting rods (13) is fixedly connected to the handle ends of the first valve (3) and the second valve (4), respectively.

6. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: One end of the two seventh connecting rods (16) is fixedly connected to the handle ends of the second valve (4) and the fourth valve (8), respectively.

7. A device for realizing the dual function of a backwash pump according to claim 1, characterized in that: The second connecting rod (11) and the fifth connecting rod (14) are arranged in opposite directions.

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