CN218688186U

CN218688186U - Back flush system and water dispenser

Info

Publication number: CN218688186U
Application number: CN202222904605.6U
Authority: CN
Inventors: 傅永旺
Original assignee: Guangdong Shunde Ailong Energy Saving Equipment Co ltd
Current assignee: Guangdong Shunde Ailong Energy Saving Equipment Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-24
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a back flush system and water dispenser. The water dispenser comprises a boiled water heating inner container and a back washing system. The back washing system comprises a back washing heating inner container, and a back washing heating device is arranged in the back washing heating inner container; the back washing heating inner container is provided with a back washing liquid inlet and a back washing liquid outlet, the back washing liquid outlet is arranged at the lower end of the back washing heating inner container, the back washing liquid outlet is provided with a valve component, and the valve component is provided with an opening pressure greater than 1atm; the filter equipment is provided with a membrane filter element, a forward water inlet, a filter water outlet, a back flush water inlet and a wastewater water outlet; the back washing water inlet is communicated with the back washing liquid outlet. The membrane filter element is back-flushed by high pressure, particles accumulated on the membrane filter element can be thoroughly flushed, and therefore the effects of prolonging the service life of the membrane filter element and reducing the waste water rate are achieved.

Description

Back flush system and water dispenser

Technical Field

The utility model relates to a water dispenser technical field, especially back flush system and water dispenser.

Background

Although the precision of membrane filtration is high, the membrane is easy to block. Thereby causing the filter element of the membrane filtration to have short service life. In order to prolong the service life of membrane filtration, a filtration mode of discharging waste water while filtering is generally adopted, but another problem caused by the filtration mode is that water is wasted greatly, and the waste water rate is as high as 70%. The low water utilization rate has become the biggest bottleneck restricting the market development of the membrane filtration type water purification equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provides a backwashing system and a water dispenser, solves one or more technical problems in the prior art, and at least provides a beneficial selection or creation condition.

The utility model provides a solution of its technical problem is:

a backwash system comprising:

a backwashing heating device is arranged in the backwashing heating inner container; the backwashing heating inner container is provided with a backwashing liquid inlet and a backwashing liquid outlet, the backwashing liquid outlet is arranged at the lower end of the backwashing heating inner container, the backwashing liquid outlet is provided with a valve assembly, the valve assembly is provided with an opening pressure, and the opening pressure is greater than atm;

the filter equipment is provided with a membrane filter element, a forward water inlet, a filter water outlet, a backwashing water inlet and a wastewater water outlet, wherein the backwashing water inlet and the wastewater water outlet are respectively arranged at two ends of the membrane filter element, and the forward water inlet and the wastewater water outlet are arranged at the same end of the membrane filter element; the back washing water inlet is communicated with the back washing liquid outlet.

Through the technical scheme, after the sealing state of the backwashing heating inner container is released, gas in the backwashing heating inner container is rapidly expanded at first, so that the pressure in the container is instantly reduced to atmospheric pressure (atm), and liquid in the backwashing heating device is pushed to move to the filtering equipment under high pressure. The saturated liquid of the vessel is now in a superheated state, that is to say its temperature is above its boiling point at atmospheric pressure. Then the gas phase and the liquid phase lose balance, the liquid is quickly evaporated and vaporized in a large amount, the volume is rapidly expanded, and the liquid for backwashing the heating inner container is continuously pushed to move to the filtering equipment.

The filter element for membrane filtration is back-flushed by high pressure, and particles accumulated on the membrane filter element can be thoroughly flushed away, so that the effects of prolonging the service life of the membrane filter element and reducing the waste water rate are achieved.

As a further improvement of the technical scheme, the valve assembly comprises a back washing solenoid valve and a pressure sensor, and the pressure sensor is in signal connection with the back washing solenoid valve.

Through the technical scheme, the pressure sensor is used for detecting the air pressure in the backwashing heating inner container, when the air pressure reaches a specific value, a signal is sent out, and the backwashing electromagnetic valve directly or indirectly receives the signal of the pressure sensor.

As a further improvement of the technical scheme, the periphery of the back washing heating inner container is coated with a heat insulation structure.

Through the technical scheme, the heat insulation structure can reduce heat loss of the backwashing heating inner container, and can more effectively utilize energy.

As a further improvement of the technical scheme, the number of the filtering devices is two, and the back washing water inlets of the two filtering devices are communicated with the back washing liquid outlets through a two-position three-way valve.

Through the technical scheme, the two filtering devices can alternately work, so that each filtering device can have sufficient time for backwashing, and the backwashing effect is better.

As a further improvement of the above technical scheme, a first water level detection device and a second water level detection device are arranged in the backwash heating inner container, and the first water level detection device and the second water level detection device are arranged up and down.

Through the technical scheme, the second water level detection device and the first water level detection device are used for detecting the height of water in the backwashing heating liner, and when the height of the water in the backwashing heating liner is located between the second water level detection device and the first water level detection device, the backwashing heating device in the backwashing heating liner starts to work.

As a further improvement of the technical scheme, the backwashing heating inner container is a round tank-shaped inner container.

Through the technical scheme, a large amount of steam can be generated in the process of boiling water in the backwashing heating inner container, so that the pressure intensity of the backwashing heating inner container is increased, the round tank-shaped backwashing heating inner container can play a role in bearing pressure, and the boiling water heating inner container is prevented from being broken due to the fact that the air pressure in the backwashing heating inner container is too large.

The water dispenser comprises a boiled water heating inner container and the backwashing system, the boiled water heating inner container is provided with a first communication port, the first communication port is communicated with the backwashing liquid inlet through a first valve body, the water dispenser is provided with a drainage pipeline, and the wastewater outlet is communicated with the drainage pipeline.

Through the technical scheme, the backwashing system is added into the water dispenser, and the membrane filtration filter element is backwashed by adopting high pressure, so that particles accumulated on the membrane filter element can be thoroughly washed away, and the effects of prolonging the service life of the membrane filter element and reducing the waste water rate are achieved.

As a further improvement of the technical scheme, the water heater further comprises a warm boiled water liner, and the boiled water heating liner is communicated with the warm boiled water liner through a heat exchange device.

Through the technical scheme, the warm boiled water liner is used for storing warm boiled water, and the water in the boiled water heating liner is cooled through the heat exchange device, so that the heat of the boiled water can be reused by cold water flowing through the heat exchange device.

As a further improvement of the technical scheme, the boiled water heating inner container is provided with a steam pipe, the steam pipe is communicated with the upper end of the boiled water heating inner container, and the steam pipe penetrates through the warm water heating inner container.

Through the technical scheme, the heat of the steam in the steam pipe can be partially transferred into the water stored in the warm water liner, so that the energy utilization rate of the water dispenser can be improved.

As a further improvement of the technical scheme, the warm water inner container is provided with a heating and heat-preserving pipe.

Through the technical scheme, the heating and heat-insulating pipe is used for heating and insulating water in the warm water liner.

The utility model has the advantages that: the membrane filter element is back-flushed by high pressure, particles accumulated on the membrane filter element can be thoroughly flushed, and therefore the effects of prolonging the service life of the membrane filter element and reducing the waste water rate are achieved.

The utility model is used for water dispenser technical field.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic sectional structure diagram of a filtering apparatus according to an embodiment of the present invention.

In the figure, 100, the inner container is heated by boiled water; 200. a warm boiled water liner; 210. a heat preservation heating pipe; 220. a sterilizing device; 230. an exhaust port; 240. a high water level electrode; 250. a low water level electrode; 300. A heat exchanger; 400. a cold water inlet pipeline; 410. a water purification and filtration device; 500. a warm water storage pipeline; 510. a warm boiled water inlet electromagnetic valve; 520. a pressure relief capillary tube; 600. backwashing the heating inner container; 610. backwashing the heating device; 620. backwashing the electromagnetic valve; 630. a pressure sensor; 640. a first water level detection device; 650. a second water level detection device; 660. backwashing the liquid inlet; 670. back flushing the liquid outlet; 700. a filtration device; 710. a membrane cartridge; 720. a back flush water inlet; 730. a positive water inlet; 740. a wastewater outlet; 750. and filtering the water outlet.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The technical characteristics in the invention can be combined interactively on the premise of not conflicting with each other.

Referring to fig. 1 and 2, a water dispenser comprises a boiled water heating inner container 100, a warm boiled water inner container 200, a heat exchanger 300, a cold water inlet pipeline 400, a warm boiled water storage pipeline 500, a drainage pipeline and a back flushing system.

The boiled water heating inner container 100 is of a round can-shaped structure, and the boiled water heating inner container 100 is of the round can-shaped structure, so that the boiled water heating inner container 100 has a certain pressure bearing function, and the defect that a rectangular can-shaped structure is easy to stress concentrate can be overcome.

The boiled water heating inner container 100 is connected with a boiled water outlet nozzle, and the boiled water outlet nozzle is connected with the boiled water heating inner container 100 through an electromagnetic valve so as to control the water outlet of the boiled water outlet nozzle (in other embodiments, a common manual control valve can be arranged to adapt to a product at a relatively low end). The lower end of the boiled water heating inner container 100 is provided with a boiled water heating pipe mounting opening. The upper end of the boiled water heating inner container 100 is connected with a pressure relief capillary 520 for reducing the pressure of the boiled water heating inner container 100.

The lower end of the boiled water heating inner container 100 is provided with a first communicating port and a first water outlet, and the first water outlet is communicated with a water outlet pipeline of the water dispenser.

The boiled water heating inner container 100 is connected with a steam pipe, the upper end of the boiled water heating inner container 100 is communicated with the steam pipe, the steam pipe penetrates through the warm water inner container 200, and partial heat of the steam pipe can be used for heating water in the warm water inner container 200 so as to realize utilization of heat of steam.

The warm water inner container 200 is a rectangular can-shaped inner container, and the rectangular can-shaped inner container can more effectively utilize the inner space of the water dispenser relative to the round can-shaped inner container. The warm boiled water inner container 200 is connected with a warm boiled water outlet nozzle, and similarly, the warm boiled water outlet nozzle and the warm boiled water inner container 200 are also connected through an electromagnetic valve. The upper end of the warm boiled water inner container 200 connected with the warm boiled water inner container 200 is provided with an air outlet 230. The side wall of the warm boiled water liner 200 is provided with a heat preservation pipe mounting opening, and the warm boiled water liner 200 is provided with a heat preservation heating pipe 210. The heat-insulating heating pipe 210 penetrates into the warm boiled water liner 200 from the heat-insulating pipe mounting opening and is detachably connected with the heat-insulating pipe mounting opening.

The bottom fixedly connected with sterilizing equipment 220 of warm water inner bag 200, in this embodiment, sterilizing equipment 220 sets up to ultraviolet sterilizer, and sterilizing equipment 220 carries out disinfection to the water in warm water inner bag 200 to avoid storing the warm water for a long time and lead to germ to breed. The warm water inner container 200 is provided with a high water level electrode 240 and a low water level electrode 250, and the high water level electrode 240 is arranged above the low water level electrode 250.

The warm boiled water liner 200 is internally provided with a heating and heat-preserving pipe, and when the temperature reaches a preset range, the heating and heat-preserving pipe can preserve the heat of the water in the warm boiled water liner 200, so that the temperature of the warm boiled water is kept at 42-45 ℃; when the temperature is lower than the preset range, the heating and heat-preserving pipe can heat the water in the warm water liner 200 to ensure that the warm water reaches the preset range.

The heat exchanger 300 is provided with a cold water passage and a hot water passage. The outlet end of the cold water channel is communicated with the boiled water heating inner container 100. The inlet end of the hot water channel is communicated with the boiled water heating inner container 100, and the outlet end of the hot water channel is communicated with the warm boiled water inner container 200 through a warm boiled water storage pipeline 500.

The warm boiled water storage pipeline 500 is provided with a warm boiled water inlet electromagnetic valve 510, when the water level in the warm boiled water inner container 200 is lower than the low water level electrode 250, the low water level electrode 250 sends a signal to a control system of the water dispenser to open the warm boiled water inlet electromagnetic valve 510, so that boiled water enters the warm boiled water inner container 200, when the water level in the warm boiled water inner container 200 is higher than the high water level electrode 240, the high water level electrode 240 sends a signal to the control system of the water dispenser to close the warm boiled water inlet electromagnetic valve 510, so that water adding into the warm boiled water inner container 200 is stopped.

The backwash system includes a backwash heating inner container 600 and a filter device 700.

The backwashing heating inner container 600 is arranged to be a round tank-shaped structure, a large amount of steam can be generated in the process of boiling water in the backwashing heating inner container 600, so that the pressure of the backwashing heating inner container 600 is increased, and the round tank-shaped backwashing heating inner container 600 can play a role of bearing pressure so as to avoid the fracture of the boiled water heating inner container 100 caused by the overlarge air pressure in the backwashing heating inner container 600. And the thickness of the back washing heating inner container 600 is larger than that of the boiled water heating inner container 100, so that the back washing heating inner container 600 can bear higher pressure, and the use safety of the water dispenser is ensured.

The back-washing heating liner 600 is provided with a back-washing liquid inlet and a back-washing liquid outlet. The back washing liquid outlet and the back washing liquid inlet are both arranged at the lower end of the back washing heating inner container 600. The back washing liquid inlet is communicated with the first communication port, a first valve body is arranged between the back washing liquid inlet and the first communication port, the first valve body is used for controlling water inlet and sealing of the back washing heating inner container 600, and the first valve body is set to be an electromagnetic valve.

The back washing liquid outlet is provided with a valve assembly which comprises a pressure sensor 630 and a back washing electromagnetic valve 620. The pressure sensor 630 is used for detecting the pressure in the backwashing heating liner 600, the pressure sensor 630 is in signal connection with the backwashing solenoid valve 620 through a control system, the opening pressure of more than one atmospheric pressure (1 atm) is set in the control system, and when the pressure of the backwashing heating liner 600 reaches the opening pressure, the backwashing solenoid valve 620 is opened, so that the water in the backwashing heating liner 600 can flow to the filtering device 700.

The backwashing heating liner 600 is provided with a backwashing heating device 610, the backwashing heating device 610 is a heating pipe, the backwashing heating device 610 heats water in the backwashing heating liner 600, the backwashing heating liner 600 is in a sealed state in the heating process, the air pressure in the backwashing heating device 610 is higher than the external atmospheric pressure, and the temperature of the water in the backwashing heating device 610 can be increased to more than one hundred degrees centigrade along with the heating.

The backwashing heating liner 600 is provided with a second water level detection device 650 and a first water level detection device 640, the second water level detection device 650 and the first water level detection device 640 are arranged up and down, the first water level detection device 640 is arranged above the second water level detection device 650, the second water level detection device 650 and the first water level detection device 640 are used for detecting the height of water in the backwashing heating liner 600, and when the height of the water in the backwashing heating liner 600 is between the second water level detection device 650 and the first water level detection device 640, the backwashing heating device 610 in the backwashing heating liner 600 starts to work. Both the second water level detection device 650 and the first water level detection device 640 are provided as water level electrodes (in other embodiments, a float water level switch may be used for the second water level detection device 650 and the first water level detection device 640).

The number of the filtering apparatuses 700 is set to two, the two filtering apparatuses 700 are arranged in parallel, and the number of the filtering apparatuses 700 is set to two, so that the two filtering apparatuses 700 can alternately work, and each filtering apparatus 700 can have sufficient time for backwashing, thereby making the backwashing effect better.

The filtering apparatus 700 is provided with a membrane cartridge 710, a backwash water inlet 720, a forward water inlet 730, a waste water outlet 740, and a filtered water outlet 750. The waste water outlet 740 and the back-flushing water inlet 720 are respectively arranged at two ends of the membrane filter element 710, and the waste water outlet 740 and the forward water inlet 730 are both arranged at the same end of the membrane filter element 710. The filtered water outlet 750 is disposed at an end of the membrane cartridge 710 remote from the forward water inlet 730.

The forward water inlet 730 is connected with the cold water inlet pipe 400 of the water dispenser, and the filtered water outlet 750 is connected with the inlet end of the cold water channel. The filtering device 700 filters the water in the cold water inlet pipe 400, and the filtered water flows to the boiled water heating inner container 100.

When the sealing state of the backwashing heating inner container 600 is released, the gas in the backwashing heating inner container 600 is rapidly expanded to instantly reduce the pressure in the container to atmospheric pressure (1 atm), and the liquid in the backwashing heating device 610 is pushed by high pressure to move towards the filtering device 700. The saturated liquid of the vessel is now in a superheated state, that is to say its temperature is above its boiling point at atmospheric pressure. Then the gas phase and the liquid phase lose balance, the liquid is evaporated and vaporized rapidly in a large amount, the volume is expanded rapidly, and the liquid which backflushes the heating inner container 600 is continuously pushed to move towards the filtering equipment 700. In design, it is necessary to ensure that the high pressure flush water does not damage the filter device 700 and to set a proper opening pressure.

The peripheries of the backwashing heating liner 600 and the boiled water heating liner 100 are both coated with heat insulation structures, and the heat insulation structures can reduce heat loss of the backwashing heating liner 600 and the boiled water heating liner 100 and can more effectively utilize energy.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The back flush system is characterized in that: the method comprises the following steps: a backwashing heating device is arranged in the backwashing heating inner container; the backwashing heating inner container is provided with a backwashing liquid inlet and a backwashing liquid outlet, the backwashing liquid outlet is arranged at the lower end of the backwashing heating inner container, the backwashing liquid outlet is provided with a valve component, the valve component is provided with an opening pressure, and the opening pressure is greater than 1atm; the filter equipment is provided with a membrane filter element, a forward water inlet, a filter water outlet, a backwashing water inlet and a wastewater water outlet, wherein the backwashing water inlet and the wastewater water outlet are respectively arranged at two ends of the membrane filter element, and the forward water inlet and the wastewater water outlet are arranged at the same end of the membrane filter element; the back washing water inlet is communicated with the back washing liquid outlet.

2. The backwash system as in claim 1, wherein: the valve component comprises a backwashing electromagnetic valve and a pressure sensor, and the pressure sensor is in signal connection with the backwashing electromagnetic valve.

3. The backwash system as defined in claim 1, wherein: the periphery of the back washing heating inner container is coated with a heat insulation structure.

4. The backwash system as in claim 1, wherein: the quantity of the filter equipment is two, and the back flush water inlets of the two filter equipment are communicated with the back flush liquid outlet through a two-position three-way valve.

5. The backwash system as in claim 1, wherein: a first water level detection device and a second water level detection device are arranged in the backwashing heating inner container, and the first water level detection device and the second water level detection device are arranged up and down.

6. The backwash system as in claim 1, wherein: the back washing heating inner container is a round tank-shaped inner container.

7. The water dispenser is characterized in that: the water dispenser comprises a boiled water heating inner container and a backwashing system as claimed in any one of claims 1 to 6, wherein the boiled water heating inner container is provided with a first communication port, the first communication port is communicated with a backwashing liquid inlet through a first valve body, the water dispenser is provided with a drainage pipeline, and a wastewater outlet is communicated with the drainage pipeline.

8. The water dispenser of claim 7, wherein: the water heater also comprises a warm boiled water liner, and the boiled water heating liner is communicated with the warm boiled water liner through a heat exchange device.

9. The water dispenser of claim 8, wherein: the boiled water heating inner container is provided with a steam pipe, the steam pipe is communicated with the upper end of the boiled water heating inner container, and the steam pipe penetrates through the warm boiled water inner container.

10. The water dispenser of claim 8, wherein: the warm boiled water liner is provided with a heating and heat-preserving pipe.