CN216358846U

CN216358846U - Water pump suction diffusion diversion filter system with automatic back flushing function

Info

Publication number: CN216358846U
Application number: CN202122548214.0U
Authority: CN
Inventors: 孙长凤; 沈燕
Original assignee: Jiangsu Hongxin Intelligent Manufacturing Co ltd
Current assignee: Jiangsu Hongxin Intelligent Manufacturing Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-22
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a water pump suction diffusion diversion filter system with an automatic back flushing function, which comprises a water pump and a diversion filter, wherein the diversion filter is arranged at the inlet end of the water pump; an inner back flushing pipe, a filter screen and a suction guide plate are arranged in the diversion filter, the inner back flushing pipe is connected with the outer back flushing pipe, the suction guide plate is connected with the filter screen and the inlet end of the water pump, and a filter inlet pressure gauge and a filter outlet pressure gauge are respectively arranged on two sides of the diversion filter. The utility model has simple structure, can utilize the water hammer energy of the system to perform the back washing function of the filter screen in the filter, reduces the resistance of the filter screen, prolongs the service time of the filter screen, and can reduce the impact of the water hammer on a pipe network and a water pump.

Description

Water pump suction diffusion diversion filter system with automatic back flushing function

Technical Field

The utility model relates to the technical field of cold station construction and various water systems with water pumps, in particular to a water pump suction diffusion diversion filter system with an automatic back flushing function.

Background

In the construction project of the electromechanical integrated assembly type air-conditioning refrigeration station of a plurality of existing manufacturers, because the electromechanical integrated assembly type air-conditioning refrigeration station is often narrow in space and is in a machine room with a small size and a small position, according to the conventional method, in order to prevent impurities in a pipeline from entering a water pump to damage the water pump, a filter is arranged in front of an inlet of the water pump, a Y-shaped filter is arranged at an inlet of the water pump, whether the impurities in the Y-shaped filter need to be cleaned or not is judged according to the conventional method, a pressure gauge is arranged in front of and behind the Y-shaped filter on the pipeline, when the pressure difference is too large, the system is stopped to clean a filter screen, the efficiency of the system is reduced due to the fact that the filter screen is not cleaned in time, and once the system is stopped, water energy hammer generated by water in the pipeline can impact a pipe network and the water pump, and the service life of the system is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a water pump suction diffusion diversion filter system with an automatic back flushing function, which has a simple structure, can perform the back flushing function of a filter screen in a diversion filter by using the water hammer energy of the system, reduce the resistance of the filter screen, prolong the service time of the filter screen, and can reduce the impact of the water hammer on the pipe network and the water pump.

In order to solve the technical problems, the utility model provides a water pump suction diffusion diversion filter system with an automatic back flushing function, which comprises a water pump and a diversion filter, wherein the diversion filter is arranged at the inlet end of the water pump; the inside back flush pipe, filter screen and the suction guide plate of being provided with of water conservancy diversion filter, interior back flush pipe with outer back flush pipe links to each other, the suction guide plate is connected the filter screen with the entry end of water pump, the both sides of water conservancy diversion filter are provided with filter entry manometer and filter export manometer respectively.

Further, the position where the outer back flushing pipe is connected with the water outlet pipe is located between the check valve and the second butterfly valve.

Furthermore, powder epoxy resin coatings are arranged inside and outside the body of the flow guide filter.

Furthermore, the filter screen adopts stainless steel material.

Furthermore, the diversion filter adopts a punched hole filter screen.

Further, the outlet end of the water pump is provided with a third pressure gauge.

The utility model has the beneficial effects that: 1. the internal and external backwashing pipes and the internal backwashing pipe of the system are used in a matching way, so that the water hammer energy of the system can be used for backwashing the filter screen when the system is stopped, the resistance of the filter screen is reduced, namely, the interval time for cleaning the filter screen is prolonged, and the existing situation is that the filter screen is often not cleaned in time, so that the resistance of a pipe network is overlarge artificially;

2. the outer backwash pipe and the inner backwash pipe in the system are used in a matched mode, and meanwhile impact of a water hammer on a pipe network and a water pump when the system is stopped can be reduced;

3. the outer backwash pipe and the inner backwash pipe of the device are matched with the diversion filter for use, and compared with the traditional installation mode that the Y-shaped filter is provided with an elbow, a small head and a small section of straight pipe section, a large amount of space and pipeline materials are saved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

The reference numbers in the figures illustrate: 1. a second butterfly valve; 2. a check valve; 3. a third pressure gauge; 4. a water pump; 5. a suction baffle; 6. an inner backwash pipe; 7. filtering with a screen; 8. a filter outlet pressure gauge; 9. a filter inlet pressure gauge; 10. an outer backwash pipe; 11. a first butterfly valve; 12. the solenoid valve is controlled.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of a water pump 4 suction diffusion diversion filter system with an automatic back flushing function according to the present invention includes a water pump 4 and a diversion filter, the diversion filter is disposed at an inlet end of the water pump 4, a first butterfly valve 11 is disposed on a water inlet pipe at the inlet end of the water pump 4, a check valve 2 and a second butterfly valve 1 are sequentially disposed on a water outlet pipe at an outlet end of the water pump 4, an outer back flushing pipe 10 is disposed between the water outlet pipe and the diversion filter, and a control solenoid valve 12 is disposed on the outer back flushing pipe 10; inside back flush pipe 6, the filter screen 7 of being provided with of water conservancy diversion filter and inhaling guide plate 5, interior back flush pipe 6 with outer back flush pipe 10 links to each other, it connects to inhale guide plate 5 the filter screen 7 with the entry end of water pump 4, the both sides of water conservancy diversion filter are provided with filter entry manometer 9 and filter export manometer 8 respectively.

During the use, rivers get into the water conservancy diversion filter through the first butterfly valve 11 of 4 entry pipeline sections of water pump, reentrant water pump 4, extrude through water pump 4, get into the check valve 2 of 4 exit ends of water pump, and the second butterfly valve 1 of 4 exit ends of rethread water pump flows to the pipe network.

When the water pump 4 stops pumping, the automatic control system is used for simultaneously opening the control electromagnetic valve 12 on the outer backwashing pipe 10, so that water hammer water flows into the diversion filter through the outer backwashing pipe 10 and the inner backwashing pipe 6 to backwash the filter screen 7, impurity particles attached to the filter screen 7 are washed away, and the water resistance of the diversion filter is reduced; thereby achieving the purpose of reducing the resistance of the water pump 4 with the automatic back washing function to suck the diffusion diversion filter.

The position where the outer backwash pipe 10 is connected to the outlet pipe is between the check valve 2 and the second butterfly valve 1.

Powder epoxy resin coatings are arranged inside and outside the body of the flow guide filter, so that rusting and influence on water quality can be avoided; the filter screen 7 is made of stainless steel, so that the cost is low and the using effect is good; the filter adopts a punching filter, the flow is large, and the internal pressure drop is small; the outlet end of the water pump 4 is provided with a third pressure gauge 3 which can monitor the pressure of the water outlet end of the water pump 4 in real time.

A special flow guide device is adopted at the outlet end of the filter to generate stable flow, so that the water pump 4 is protected (the phenomenon of air turbidity is prevented).

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A water pump suction diffusion diversion filter system with an automatic back flushing function comprises a water pump and a diversion filter, and is characterized in that the diversion filter is arranged at the inlet end of the water pump, a first butterfly valve is arranged on a water inlet pipe at the inlet end of the water pump, a check valve and a second butterfly valve are sequentially arranged on a water outlet pipe at the outlet end of the water pump, an outer back flushing pipe is arranged between the water outlet pipe and the diversion filter, and a control electromagnetic valve is arranged on the outer back flushing pipe;

the inside back flush pipe, filter screen and the suction guide plate of being provided with of water conservancy diversion filter, interior back flush pipe with outer back flush pipe links to each other, the suction guide plate is connected the filter screen with the entry end of water pump, the both sides of water conservancy diversion filter are provided with filter entry manometer and filter export manometer respectively.

2. The water pump suction diffusion baffled filter system with automatic back flushing function of claim 1, wherein the connection position of the outer back flushing pipe and the water outlet pipe is between the check valve and a second butterfly valve.

3. The water pump suction diffusion diversion filter system with automatic backwashing function of claim 1 wherein the diversion filter body is provided with a powdered epoxy coating on both the inside and outside.

4. The water pump suction diffusion diversion filter system with automatic back flushing function as claimed in claim 1, wherein said filter screen is made of stainless steel.

5. The water pump suction diffusion diversion filter system with automatic backwashing function of claim 1, wherein the diversion filter is a perforated filter screen.

6. The water pump suction diffusion diversion filter system with automatic back flushing function of claim 1 wherein the outlet end of said water pump is provided with a third pressure gauge.