Forward and reverse flushing water purifier structure

Abstract

The utility model discloses a forward and reverse flushing water purifier structure, and belongs to the technical field of water purification equipment. Comprising a water purifier, and the water purifier comprises a water inlet, a water outlet and a drain outlet; the water inlet is communicated with a water inlet pipe, and one side of the water inlet pipe is communicated with a gas injection port; a Venturi jet pipe is arranged on the water inlet pipe, the gas injection port is formed in a suction inlet of the Venturi jet pipe, and a gas injection one-way valve only allowing fluid to flow from the gas injection port to the suction inlet is further arranged between the gas injection port and the suction inlet; when the water purifier is subjected to positive flushing, water enters the water purifier from the water inlet and then is discharged from the drain outlet, and the gas injection port is arranged to inject gas into the water inlet pipe, so that liquid flow in the water inlet pipe is full of bubbles, and the flushing effect is better; the venturi jet pipe is adopted, and during forward flushing, when liquid flow passes through the venturi jet pipe, air flow can be automatically sucked in, and electric control is not needed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water purifying equipment technical field, specifically belongs to a kind of positive and negative washing water purifier structure. BACKGROUND

[0002] With the improvement of people's living standards, people's demand for water quality is higher and higher, so water purifier has been widely used in our production and life. The filter element of water purifier is blocked after a certain period of use, which affects the flow of water and reduces the filtering effect of water purifier. Directly replacing the filter element of water purifier not only has complex operation process, but also has high cost of replacing filter element.

[0003] Some water purifiers are provided with positive washing and or backwashing function, but during washing, only water is used for washing, and the washing effect is not good, or the washing efficiency is low, and it takes a long time to complete washing. INVENTION CONTENTS

[0004] Therefore, the utility model aims at overcoming the defects in the prior art, and provides a water purifier structure with positive and negative washing. The application provides the following technical scheme:

[0005] The water purifier comprises a water inlet, a water outlet and a sewage outlet. The water inlet is connected with a water inlet pipe, and the water inlet pipe is connected with a gas injection port on one side.

[0006] A Venturi jet pipe is arranged on the water inlet pipe, the gas injection port is arranged on the suction port of the Venturi jet pipe, and a gas injection check valve is further arranged between the gas injection port and the suction port to allow fluid to flow from the gas injection port to the suction port only.

[0007] The water purifier is an ultrafiltration water purifier, a cylindrical filter element is arranged in the water purifier, a sewage cavity is arranged outside the cylindrical filter element, a clean water cavity is arranged inside the cylindrical filter element, the water inlet and the sewage outlet are connected with the sewage cavity, and the clean water cavity is connected with the water outlet.

[0008] When backwashing is performed, the liquid flows from the water outlet into the water purifier and then flows out of the sewage outlet, the liquid flows from inside the cylindrical filter element to outside the cylindrical filter element, and the liquid impact force acts on the cylindrical filter element, so that the filter element slightly expands outward, the filter gap on the filter element becomes larger, and the dirt on the filter element is more easily washed off, so that the washing effect is better.

[0009] A liquid flow check valve is arranged on the water inlet pipe to allow fluid to flow to the water inlet only, and a sewage pipe is further connected between the liquid flow check valve and the water inlet.

[0010] The extra blow-off pipe is arranged on the water inlet pipe, when back flushing, liquid flows from the water outlet into the water purifier and then is discharged from the water inlet to the blow-off pipe, which is completely opposite to the liquid flow direction when the water purifier purifies water, so that the flushing is more accurate and effective.

[0011] The gas injection port and the water inlet pipe are further provided with a check valve allowing fluid to flow from the gas injection port to the water inlet pipe only, and the other end of the gas injection port is communicated with a booster air pump.

[0012] The booster air pump is arranged, when forward flushing, water liquid flows from the water inlet into the water purifier and then is discharged from the blow-off port, the booster air pump is used to inject gas, the fluid pressure in the water inlet pipe is increased, the liquid flow rate during forward flushing is accelerated, and the flushing effect is better.

[0013] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present application are:

[0014] When the water purifier is forward flushed, water liquid flows from the water inlet into the water purifier and then is discharged from the blow-off port, the gas injection port is arranged to inject gas into the water inlet pipe, so that the liquid flow in the water inlet pipe is filled with gas bubbles, and the flushing effect is better; the Venturi jet pipe is adopted, when forward flushing, liquid flow can automatically suck in air flow when passing through the Venturi jet pipe, and no electric control is needed.

[0015] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 It is a sectional view of a water purifier structure embodiment one of forward and back flushing.

[0018] Figure 2 It is a perspective view of a water purifier structure embodiment one of forward and back flushing.

[0019] Figure 3 It is a sectional view of a water purifier structure embodiment two of forward and back flushing.

[0020] Fig. 1 is a water purifier, 11 is a water inlet, 12 is a water outlet, 13 is a sewage outlet, 14 is a cylindrical filter core, 15 is a sewage cavity, 16 is a water purification cavity, 2 is a water inlet pipe, 21 is a liquid flow check valve, 3 is a gas injection port, 31 is a gas injection check valve, 32 is a flow stopping check valve, 4 is a Venturi jet pipe, 5 is a sewage pipe, 6 is a booster gas pump. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described below in detail with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.

[0022] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly interpreted, for example, they can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0024] Please refer to Figures 1-2 Fig. 1 shows a structure of a forward and reverse washing water purifier provided by the first embodiment of the present application,

[0025] The water purifier 1 comprises a water inlet 11, a water outlet 12 and a sewage outlet 13. The water inlet 11 is communicated with a water inlet pipe 2, and the water inlet pipe 2 is communicated with a gas injection port 3 on one side.

[0026] The water inlet pipe 2 is provided with a Venturi jet pipe 4, and the gas injection port 3 is arranged on the suction port of the Venturi jet pipe 4. The gas injection port 3 and the suction port are further provided with a gas injection check valve 31 which allows fluid to flow from the gas injection port 3 to the suction port only.

[0027] Water purifier 1 is an ultrafiltration water purifier. Water purifier 1 is equipped with a cylindrical filter element 14. The outside of the cylindrical filter element 14 is a sewage chamber 15, and the inside of the cylindrical filter element 14 is a clean water chamber 16. The water inlet 11 and the sewage outlet 13 are connected to the sewage chamber 15, and the clean water chamber 16 is connected to the water outlet 12.

[0028] The inlet pipe 2 is equipped with a liquid flow check valve 21 that only allows fluid to flow to the inlet 1. The liquid flow check valve 21 is also connected to the inlet 1 by a drain pipe 5.

[0029] The sewage outlet 13 and the sewage pipe 5 are equipped with valves for opening and closing the pipeline. The water outlet 12 is connected to the water tower through a pipe to transport the filtered water to the water tower. The water inlet 11 is connected to the water pump through a pipe to draw water from the well or pond.

[0030] In practice, backwashing is performed first. The valve on the drain pipe 5 is opened, and the liquid flows from the outlet 12 into the water purifier 1, enters the clean water chamber 16, and then flows from the clean water chamber 16 to the wastewater chamber 15. The liquid flows through the cylindrical filter element 14, carrying out the dirt in the filter element 14, and then is discharged from the drain pipe 5. Then, forward flushing is performed. The valve on the drain pipe 5 is closed, and the valve on the drain outlet 13 is opened. The liquid flows from the inlet pipe 2 through the inlet 12 into the water purifier 1. When the liquid flows through the Venturi jet pipe 4, due to the pressure difference of the Venturi jet pipe 4, gas is drawn in through the suction port from the air injection port 3. At this time, the liquid is filled with air bubbles. Then, the liquid flows through the wastewater chamber 15, washing the dirt in the wastewater chamber 15 and the dirt on the surface of the cylindrical filter element 14, and is discharged from the drain outlet 13.

[0031] It is worth noting that during backwashing, the liquid difference or pressure of the water tower can be used to make the water flow backward. Therefore, during forward flushing, the liquid will also be discharged from the drain outlet with lower pressure. During forward flushing, the water is drawn by a water pump for rinsing.

[0032] like Figure 3 As shown, this is a water purifier structure with forward and reverse flushing provided in Embodiment 2. Unlike Embodiment 1, the inlet pipe 2 is not equipped with a Venturi jet pipe 4; instead, a check valve 32 that only allows fluid to flow from the air inlet 3 to the inlet pipe 2 is provided between the air inlet 3 and the inlet pipe 2. The other end of the air inlet 3 is connected to a booster pump 6.

[0033] Therefore, during the positive flushing, gas is not drawn in through the Venturi jet tube 4, but is injected into the water inlet pipe 2 through the booster air pump 6. The amount of gas injected is greater, which increases the pressure in the water inlet pipe 2 and increases the fluid flow rate.

[0034] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A water purifier structure with forward and reverse flushing, characterized in that: The utility model provides a water purifier (1), the water purifier (1) includes water inlet (11), water outlet (12), blowdown (13), water inlet (11) is connected with water inlet pipe (2), one side of water inlet pipe (2) is connected with gas injection port (3).

2. A forward and backward washing water purifier structure according to claim 1, wherein: Venturi jet pipe (4) is arranged on water inlet pipe (2), gas injection port (3) is arranged on the suction port of venturi jet pipe (4), and gas injection one-way valve (31) that only allows fluid to flow from gas injection port (3) to suction port is further arranged between gas injection port (3) and suction port.

3. A forward and backward washing water purifier structure according to claim 1, wherein: The water purifier (1) is an ultrafiltration water purifier, a cylindrical filter core (14) is arranged in the water purifier (1), the outer of cylindrical filter core (14) is sewage cavity (15), the inner of cylindrical filter core (14) is clean water cavity (16), water inlet (11) and blowdown (13) are communicated with sewage cavity (15), and clean water cavity (16) is communicated with water outlet (12).

4. A forward and backward washing water purifier structure according to claim 1, wherein: Water inlet pipe (2) is provided with liquid flow one-way valve (21) that only allows fluid to flow to water inlet (11), and blowdown pipe (5) is further communicated between liquid flow one-way valve (21) and water inlet (11).

5. A forward and backward washing water purifier structure as claimed in claim 2, wherein: Gas injection port (3) and water inlet pipe (2) are further provided with stop one-way valve (32) that only allows fluid to flow from gas injection port (3) to water inlet pipe (2), and the other end of gas injection port (3) is communicated with booster gas pump (6).

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