CN211971931U

CN211971931U - Purified water preparation equipment

Info

Publication number: CN211971931U
Application number: CN201921309925.9U
Authority: CN
Inventors: 赵亚南; 任丽; 方辰龙
Original assignee: Zhengzhou Zhenghe Medical Instruments Co ltd
Current assignee: Zhengzhou Zhenghe Medical Instruments Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-11-20
Anticipated expiration: 2029-08-13

Abstract

A purified water preparation device comprises a raw water storage tank, a mechanical filter tank, an activated carbon filter tank, a softening tank, an RO reverse osmosis device and a pure water tank which are connected in sequence; the mechanical filter tank is a quartz sand filter, and the upper end of the quartz sand filter is provided with a liquid inlet, a liquid outlet and a back-washing liquid outlet; the liquid inlet is connected with a jet mechanism; the jet flow mechanism is positioned in the quartz sand filter and faces the filter layer; a connecting pipe is arranged in the quartz sand filter; the bottom of the filtering layer is a water collecting cavity; a water collecting pipe is arranged in the water collecting cavity; and two ends of the connecting pipe are respectively communicated with the liquid outlet and the water collecting pipe. The utility model discloses on the basis that remains original back flush function, still increased the efflux function. The jet mechanism faces the filter layer, so that the effect of surface washing can be achieved while liquid is fed, and the capability of stripping sediments on the surface of the filter layer is improved.

Description

Purified water preparation equipment

Technical Field

The utility model relates to a purified water preparation equipment belongs to water treatment facilities technical field.

Background

The conventional equipment for filtering in purified water manufacturing equipment is mainly a quartz sand filter, quartz sand is generally directly placed in a quartz sand filter body, a filter screen is laid at the bottom of the quartz sand, filtered water flows out from the lower layer of the quartz sand, and after the equipment runs for a period of time, the filter layer is easy to block. In addition, most of the existing quartz sand filters have a back washing function, but in the back washing process, a filtering layer needs a large amount of running water to achieve the purpose of recovering the filtering capacity. Backwash has limited ability to strip off suspended solids deposited on the filter material surface and therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the purified water preparation equipment is simple and reasonable in structure, convenient to use and good in stripping effect.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows: a purified water preparation device comprises a raw water storage tank, a mechanical filter tank, an activated carbon filter tank, a softening tank, an RO reverse osmosis device and a pure water tank which are connected in sequence; the mechanical filter tank is a quartz sand filter, and the upper end of the quartz sand filter is provided with a liquid inlet, a liquid outlet and a back-washing water outlet; the liquid inlet is connected with a jet mechanism; the jet system is positioned in the quartz sand filter and faces the filter layer; a connecting pipe is arranged in the quartz sand filter; the bottom of the filtering layer is a water collecting cavity; a water collecting pipe is arranged in the water collecting cavity; and two ends of the connecting pipe are respectively communicated with the liquid outlet and the water collecting pipe.

Preferably, the liquid inlet is connected with a water inlet calandria in the quartz sand filter; the liquid inlet is communicated with the jet mechanism through a liquid inlet calandria.

Before backwashing, sediment is separated from the filter layer, and the workload of the backwashing process is reduced.

Preferably, the jet mechanism is a water ejector; the liquid inlet is communicated with an inlet of the ejector through a liquid inlet calandria; the water ejector is also provided with an air inlet and a liquid outlet.

Preferably, the air inlet is communicated with the outer side of the quartz sand filter.

Preferably, a back washing liquid outlet is formed in the quartz sand filter; the back washing liquid outlet is communicated with the quartz sand filter; and the back washing liquid outlet and the liquid outlet are respectively connected with a plug.

Preferably, the filter layer comprises a stainless steel fine mesh layer, glass medium particles; quartz sand particles are filled in the filter box below the glass medium layer; a foam isolating net is arranged in the filter box between the stainless steel fine mesh layer and the glass medium particles

Preferably, a quartz sand filter screen is arranged at the bottom of the quartz sand.

The utility model discloses on the basis that remains original back flush function, still increased the efflux function. The jet mechanism faces the filter layer, so that the effect of surface washing can be achieved while liquid is fed, and the capability of stripping sediments on the surface of the filter layer is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention in a filtering state.

The direction indicated by the arrow in the figure is the liquid flow direction.

In the figure, 1 is a quartz sand filter, 1.1 is a liquid inlet, 1.2 is a liquid outlet, 1.3 is a back washing liquid outlet, 2 is a filtering layer, 3 is a connecting pipe, 4 is a water collecting cavity, 6 is a water inlet calandria, 7 is a water ejector, and 8 is a back washing liquid inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.

Referring to fig. 1, a purified water preparation apparatus includes a raw water storage tank, a mechanical filter tank, an activated carbon filter tank, a softening tank, an RO reverse osmosis device, and a pure water tank, which are connected in sequence; the mechanical filter tank is a quartz sand filter 1, and a liquid inlet 1.1, a liquid outlet 1.2 and a back-washing water outlet 1.3 are arranged at the upper end of the quartz sand filter 1; the liquid inlet 1.1 is connected with a jet mechanism; the jet flow mechanism is positioned in the quartz sand filter 1 and faces the filter layer 2; a connecting pipe 3 is arranged in the quartz sand filter 1; the bottom of the filter layer 2 is provided with a water collecting cavity 4; a water collecting pipe is arranged in the water collecting cavity 4; and two ends of the connecting pipe 3 are respectively communicated with the liquid outlet 1.2 and the water collecting pipe.

Before backwashing, sediment is separated from the filter layer 2, and the workload of the backwashing process is reduced.

Further, the jet mechanism is a water ejector 7; the liquid inlet 1.1 is communicated with an inlet of the ejector; the water ejector 7 is also provided with an air inlet and an liquid outlet.

Specifically, in this embodiment, the water injector may be in a direct-insert bonding type, and the water jet inlet (slipknot or direct-through connection) is connected to the liquid inlet of the activated carbon filter tank, and the water jet outlet is opposite to the filter layer. The filtered water that gets into the active carbon filter tank all enters into the filter layer through the efflux, and liquid can shell the layer to the filter layer through high-speed efflux on the filter layer, also can increase the velocity of flow of liquid in the filter layer, avoids the deposit.

Furthermore, the air inlet is communicated with the outer side of the quartz sand filter.

Specifically, the air inlet is connected with a pump body on the outer side of the quartz sand filter 1, and the pump body can be a centrifugal pump or a low-pressure reciprocating pump.

Furthermore, a back washing liquid outlet 1.3 and a back washing liquid inlet are arranged on the quartz sand filter 1; the back washing liquid outlet 1.3 is communicated with the quartz sand filter 1; and the back washing liquid outlet and the liquid outlet are respectively connected with a plug.

According to the usage selection, when the backwashing is not needed, the back flushing liquid outlet is blocked by the plug.

Further, the filtering layer comprises a stainless steel fine mesh layer and glass medium particles; quartz sand particles are filled in the filter box below the glass medium layer; and foam cotton separation nets are arranged in the filter boxes between the stainless steel fine mesh layers and the glass medium particles.

Furthermore, a quartz sand filter screen is arranged at the bottom of the quartz sand.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A purified water preparation device comprises a raw water storage tank, a mechanical filter tank, an activated carbon filter tank, a softening tank, an RO reverse osmosis device and a pure water tank which are connected in sequence; the mechanical filter tank is a quartz sand filter (1) and is characterized in that: the upper end of the quartz sand filter (1) is provided with a liquid inlet (1.1), a liquid outlet (1.2) and a back washing liquid outlet (1.3); the liquid inlet (1.1) is connected with a jet mechanism; the jet flow mechanism is positioned in the quartz sand filter (1) and faces the filter layer (2); a connecting pipe (3) is arranged in the quartz sand filter (1); the bottom of the filter layer (2) is provided with a water collecting cavity (4); a water collecting pipe is arranged in the water collecting cavity (4); and two ends of the connecting pipe (3) are respectively communicated with the liquid outlet (1.2) and the water collecting pipe.

2. The purified water production apparatus according to claim 1, wherein: the jet mechanism is a water ejector (7); the liquid inlet (1.1) is communicated with an inlet of the water ejector (7); the water ejector (7) is also provided with an air inlet and a liquid outlet.

3. The purified water production apparatus according to claim 2, wherein: the air inlet is communicated with the outer side of the quartz sand filter (1); the air inlet is connected with the power-driven pump.

4. A purified water preparation apparatus according to claim 3, characterized in that: the power driven pump is a centrifugal pump or a low-pressure reciprocating pump.

5. The purified water production apparatus according to claim 1, wherein: the back-washing liquid inlet (8) and the back-washing liquid outlet (1.3) are communicated in the quartz sand filter (1); and the back washing liquid outlet (1.3) and the liquid outlet (1.2) are respectively connected with a plug.

6. The purified water production apparatus according to claim 1, wherein: the filtering layer comprises a stainless steel fine mesh layer and glass medium particles; quartz sand particles are filled in the filter box below the glass medium layer; and foam cotton separation nets are arranged in the filter boxes between the stainless steel fine mesh layers and the glass medium particles.

7. The purified water production apparatus according to claim 6, wherein: and a quartz sand filter screen is arranged at the bottom of the quartz sand.