Control device for solving pollution discharge of secondary cooling water backwashing filter

Abstract

The utility model discloses a pollution discharge control device for a secondary cooling water backwashing filter, relates to the technical field of filter backwashing, and solves the problems that in the prior art, a pneumatic diaphragm valve is adopted, a diaphragm is easy to corrode, age and damage, a valve body is easy to abrade and the service life of the pneumatic diaphragm valve is influenced in the high-frequency use process of the pneumatic diaphragm valve. And in 350 water pipe management, a 50 pipeline is adopted for sewage discharge, and the sewage discharge flow impact is large. Comprising a first blow-off pipe, the inner end of the first blow-off pipe is connected to a backwashing blow-off port of the filter, the outer end of the first blow-off pipe is connected to a stop valve, the stop valve controls and adjusts flow, the other end of the stop valve is connected to a ball valve, the other end of the ball valve is connected to a water bag, and the other end of the water bag is connected to a second blow-off pipe. The ball valve with a simpler structure is used, so that the pollution discharge efficiency is improved, and convenience is provided for subsequent maintenance; and the pipe diameter is increased in a stepped mode, impact is released step by step, and the effects of reducing pipeline vibration and reducing the influence of generated noise on the field operation environment are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter backwash technical field, especially in solving two cold water backwash filter blowdown control device. BACKGROUND

[0002] As Figure 1 As shown in the prior art, 3# continuous casting two cold water backwash filter blowdown gap is 5 minutes / time, two cold water inlet pressure is about 1.3Mpa, its blowdown pipeline adopts pneumatic diaphragm valve, but the diaphragm is easy to be corroded, aged and damaged in the high frequency use process of pneumatic diaphragm valve, the valve body is easy to wear, leading to poor air tightness and water leakage, needing overall replacement, and the pneumatic diaphragm valve and the pipeline diameter of both ends thereof are DN50, and the DN350 water pipe is discharged through the DN50 pipeline, leading to large flow impact and noise during blowdown, seriously affecting the field operation environment, and the overall cost of replacing the above valve is expensive, and the replacement of the valve affects production efficiency, so a two cold water backwash filter blowdown control device is needed to increase the blowdown efficiency and provide convenience for subsequent maintenance. SUMMARY

[0003] The utility model aims at providing a kind of solving two cold water backwash filter blowdown control device, using the ball valve of more simple structure, increase the blowdown efficiency, and provide the convenience for subsequent maintenance again;And pipe diameter ladder becomes larger, impact is released gradually, reduces pipeline vibration, reduces the influence of noise thus generated on field operation environment.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A kind of solving two cold water backwash filter blowdown control device, including first blowdown pipe, first blowdown pipe inner end is connected to the backwash blowdown port of filter, outer end is connected to stop valve, stop valve controls flow, stop valve other end is connected to ball valve, ball valve other end is connected to water bag, water bag other end is connected to second blowdown pipe.

[0006] By using the above technical scheme, stop valve controls flow, using the ball valve of more simple structure, increase the blowdown efficiency, facilitate maintenance, and impact is released by water bag, reduce pipeline vibration, reduce the influence of noise thus generated on field operation environment.

[0007] Further, the third connecting pipe is communicated between the stop valve and the ball valve, and the pipe diameter of the third connecting pipe is greater than that of the first blowdown pipe.

[0008] By using the above technical scheme, the third connecting pipe with larger pipe diameter is used to further release impact and reduce pipeline vibration.

[0009] Further, the third connecting pipe has a pipe diameter 10-15mm larger than the first blow-off pipe.

[0010] By adopting the above technical scheme, the impact is released reasonably, and the connection is facilitated.

[0011] Further, the first blow-off pipe has a pipe diameter of 50mm, and the third connecting pipe has a pipe diameter of 65mm.

[0012] By adopting the above technical scheme, the original DN50 pipe is replaced by a DN65 pipe, so that the pipe diameter step is increased to release the impact gradually.

[0013] Further, the third connecting pipe is a metal hose.

[0014] By adopting the above technical scheme, the connection between the stop valve and the ball valve is facilitated.

[0015] Further, the water bag has a pipe diameter 3-4 times that of the first blow-off pipe.

[0016] By adopting the above technical scheme, the pipeline impact is reduced.

[0017] Further, the stop valve is connected to the fourth connecting pipe away from the one end of the first blow-off pipe, and the fourth connecting pipe is connected to the third connecting pipe at the other end.

[0018] By adopting the above technical scheme, the connection of the third connecting pipe is facilitated.

[0019] Further, the pipe diameters of the stop valve and the third connecting pipe are larger than that of the first blow-off pipe.

[0020] By adopting the above technical scheme, the pipe diameter is increased starting from the stop valve, so that the pipeline impact at the position of the stop valve is reduced.

[0021] Further, the ball valve is a pneumatic ball valve.

[0022] By adopting the above technical scheme, the structure is simple, the execution speed is fast, and the high-frequency blow-off work is facilitated.

[0023] In summary, the utility model has the following beneficial effects:

[0024] The stop valve is connected to the ball valve, the ball valve with a simpler structure is used, the blow-off efficiency is increased, the maintenance is facilitated, the other end of the ball valve is connected to the water bag, the other end of the water bag is connected to the second blow-off pipe, the original DN50 pipe is replaced by a DN65 pipe, so that the pipe diameter step is increased, the impact is released through the third connecting pipe with a larger pipe diameter, the water bag further releases the impact, the pipeline vibration is reduced, and the influence of the noise generated therefrom on the on-site operation environment is reduced.

[0025] It can reduce production costs and improve the on-site operating environment. In addition, the pneumatic ball valve has a simple structure and the sealing ring is generally movable, which makes it easy to disassemble and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a structural diagram of the secondary cold water backwash filter part in the prior art;

[0028] Figure 2 This is a structural diagram of a solution to the connection of a sewage control device for a secondary cold water backwash filter in the utility model;

[0029] Figure 3 The utility model is a schematic diagram of the overall structure of a sewage discharge control device for a secondary cold water backwash filter.

[0030] In the figure, 1, first sewage pipe; 2, stop valve; 3, ball valve; 4, water bag; 5, second sewage pipe; 6, third connecting pipe; 7, fourth connecting pipe; 8, fifth connecting pipe. DETAILED DESCRIPTION

[0031] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings, which do not limit the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] A solution to the secondary cold water backwash filter sewage control device, such as Figure 2 As shown, it includes a first sewage pipe 1, the inner end of the first sewage pipe 1 is connected to the backwash sewage outlet of the filter; the filter in this embodiment is an Israeli filter, which is installed on a DN350mm water pipe. The liquid inlet end of the filter is connected to the first connecting hole of the water pipe through a first butterfly valve, and the liquid outlet end is connected to the second connecting hole of the water pipe through a second butterfly valve to achieve filtration. The first connecting hole and the second connecting hole on the water pipe are connected to each other through a third butterfly valve to achieve filtration after cutting off or backwashing after connecting.

[0033] like Figure 2As shown, the first drain pipe 1 is connected to the stop valve 2, the stop valve 2 controls the flow, the other end of the stop valve 2 is connected to the fourth connecting pipe 7, the other end of the fourth connecting pipe 7 is connected to the third connecting pipe 6, the other end of the third connecting pipe 6 is connected to the ball valve 3 (the ball valve 3 in this embodiment is a pneumatic ball valve, which has simple structure, fast execution speed, and is convenient for high-frequency blowdown work), the other end of the ball valve 3 is connected to the fifth connecting pipe 8, the other end of the fifth connecting pipe 8 is connected to the water tank 4, and the other end of the water tank 4 is connected to the second drain pipe 5.

[0034] By controlling the flow through the stop valve 2 and using the ball valve 3 with a simpler structure, the blowdown efficiency is increased, maintenance is facilitated, and the impact is released through the water tank 4, reducing pipeline vibration and the noise generated thereby to reduce the impact on the operating environment.

[0035] As shown in the figure, Figure 2 The diameter of the third connecting pipe 6 is larger than that of the first drain pipe 1 to further release the impact and reduce the pipeline vibration; the diameter of the third connecting pipe 6 is 10-15 mm larger than that of the first drain pipe 1, and in this embodiment, the diameter of the first drain pipe 1 is 50 mm, and the diameter of the third connecting pipe 6 is 65 mm. The original DN50 pipeline is replaced by the DN65 third connecting pipe 6, so that the diameter step is increased, and the impact is gradually released.

[0036] In some other embodiments, the diameters of the stop valve 2 and the third connecting pipe 6 are both larger than that of the first drain pipe 1, and the diameters of the stop valve 2 and the third connecting pipe 6 can both be DN65 mm, so that the diameter is gradually increased from the stop valve 2, reducing the pipeline impact at the position of the stop valve 2.

[0037] As shown in the figure, Figure 2 The third connecting pipe 6 is a metal hose, which facilitates the connection between the stop valve 2 and the ball valve 3, and the two ends thereof are connected to the fourth connecting pipe 7 and the ball valve 3 through connecting joints; in some embodiments, the diameters of the stop valve 2, the fourth connecting pipe 7, the third connecting pipe 6, the ball valve 3, the fifth connecting pipe 8, and the second drain pipe 5 are all DN65 mm; and the diameter of the water tank 4 is 3-4 times that of the first drain pipe 1, and in this embodiment, it is set to DN150 mm and the length is 1500 mm.

[0038] Working principle:

[0039] In this embodiment, the original pneumatic valve and the related pipeline are removed, and a DN65 stop valve 2 (adjusting the size of the water) - a DN65 mm metal hose (a third connecting pipe 6 with a DN65 flange adapter) - a DN65 mm pneumatic ball valve 3 - a water tank 4 with a diameter of 150 mm are sequentially installed from the backwashing blowdown port at the top of the filter, and then discharged into the second drain pipe 5.

[0040] The sewage pipe adjusting flow is controlled by the stop valve 2, the stop valve 2 is connected to the pneumatic ball valve 3, the ball valve 3 with simpler structure is used, the sewage efficiency is increased, and convenience is provided for subsequent maintenance; the ball valve 3 is connected to the water bag 4 at the other end, the water bag 4 is connected to the second sewage pipe 5 at the other end, and the original DN50 pipe is replaced by the DN65 pipe, so that the pipe diameter step is increased, after the pipe diameter step is increased, the impact is gradually released, the influence of the noise generated due to the pipe vibration on the field operation environment is greatly reduced, and two advantages are achieved at one time.

[0041] The production cost can be reduced, and the field operation environment is improved; in addition, the pneumatic ball valve has simple structure, and the sealing ring is generally movable, so that the disassembly and replacement are convenient.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and the modification or equivalent replacement should also be regarded as falling within the protection scope of the technical scheme of the present application.

Claims

1. A sewage control device for a secondary cold water backwash filter, characterized by: It comprises a first blow-off pipe (1), the inner end of which is connected to the backwash blow-off port of a filter, the outer end of which is connected to a stop valve (2), the stop valve (2) controls the flow, the other end of the stop valve (2) is connected to a ball valve (3), the other end of the ball valve (3) is connected to a water bag (4), the other end of the water bag (4) is connected to a second blow-off pipe (5).

2. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 1, characterized in that: The third connecting pipe (6) is communicated between the stop valve (2) and the ball valve (3), and the pipe diameter of the third connecting pipe (6) is larger than that of the first blow-off pipe (1).

3. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 2, characterized in that: The pipe diameter of the third connecting pipe (6) is 10-15 mm larger than that of the first blow-off pipe (1).

4. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 3, characterized in that: The pipe diameter of the first blow-off pipe (1) is 50 mm, and the pipe diameter of the third connecting pipe (6) is 65 mm.

5. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 2, characterized in that: The third connecting pipe (6) is a metal hose.

6. The device for controlling blowdown of a secondary cooling water backwash filter according to claim 1 or 3, characterized in that: The pipe diameter of the water bag (4) is 3-4 times that of the first blow-off pipe (1).

7. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 2, characterized in that: The fourth connecting pipe (7) is communicated at one end away from the first blow-off pipe (1) to the stop valve (2), and the other end of the fourth connecting pipe (7) is connected to the third connecting pipe (6).

8. The device for controlling blowdown of a backwash filter of secondary cooling water according to claim 2, characterized in that: The pipe diameters of the stop valve (2) and the third connecting pipe (6) are both larger than that of the first blow-off pipe (1).

9. The device for controlling blowdown of a secondary cooling water backwash filter according to claim 1, characterized in that: The ball valve (3) is a pneumatic ball valve.

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