CN213994942U - Improved direct drinking water quartz sand tank - Google Patents

Abstract

The utility model provides an improved direct drinking water quartz sand tank, which comprises a tank body, wherein a quartz sand filter layer is arranged in the tank body, the upper end of the tank body is provided with a water inlet pipe, a water suction pump is arranged on the water inlet pipe, the middle part of the water inlet pipe is communicated with a sewage discharge pipe, and the joint of the water inlet pipe and the sewage discharge pipe is provided with a multi-position control valve; the upper end of the tank body is also provided with an exhaust pipe and a manhole, one end of the exhaust pipe, which is far away from the tank body, is turned downwards and communicated with a sewage collecting piece, and the exhaust pipe is provided with a first valve body; a water outlet pipe with a second valve body is arranged at the lower end of the tank body, the side wall of the water outlet pipe is communicated with a first branch pipe, an emptying valve is arranged on the first branch pipe, and one end of the first branch pipe, which is far away from the water outlet pipe, is communicated with a gas backwashing device; the lower end of the tank body is also provided with a recoil pipe, and the recoil pipe is provided with a recoil valve. The utility model discloses combine two kinds of washing methods of gas backwash and water backwash to filter the quartz sand filter layer, effectively improve the backwash effect, reduce the water consumption of backwash, the water economy resource.

Description

Improved direct drinking water quartz sand tank

Technical Field

The utility model relates to a water treatment facilities technical field, in particular to quartzy sand jar of straight drinking water of improvement.

Background

The quartz sand filtration is one of the most effective means for removing suspended matters in water, and is an important unit in sewage advanced treatment, sewage recycling and water supply treatment; the quartz sand tank is a device for filtering and purifying water by using quartz sand, and the quartz sand tank utilizes a quartz sand filter layer to intercept impurities such as particles, suspended matters, sludge, colloid and the like in the water, and the impurities are intercepted by the quartz sand filter layer, so that the water is clarified. In the filtering process, the quartz sand filtering layer can be gradually polluted by impurities in water, so that the filtering effect is increasingly poor, and the quartz sand filtering layer must be cleaned in order to restore the normal operation of the quartz sand tank and ensure the water quality and the water quantity of the discharged water.

The existing quartz sand tank is cleaned in a water reverse impact mode, impurities in the quartz sand filter layer are cleaned mainly by means of impact of water during reverse flushing during the reverse flushing, the impurities in the quartz sand filter layer cannot be fully removed in a single water reverse impact mode, the reverse flushing water is discharged from a drain pipe communicated with an inlet pipe and an outlet pipe through a multi-level control valve, the tank body is suppressed due to difference between inlet water (the pressure of a clean water pipe network is 0.43MPa) and outlet water, and quartz sand in the tank body cannot float upwards to achieve a reverse flushing effect; in order to achieve a better backwashing effect, the backwashing time generally needs to be prolonged, the water consumption for backwashing is greatly increased, and the waste of water resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving one of the above technical problems in the related art to at least a certain extent, therefore, the utility model provides an improved direct drinking water quartz sand tank, which prevents the tank body from being suppressed by exhaust pipe exhaust when filtering water normally through arranging the exhaust pipe at the upper end of the tank body, can open the first valve body to enable the exhaust pipe to be used as a pipeline for discharging sewage during backwashing, and can prevent the tank body from being suppressed to enable quartz sand to float up and loosen during backwashing, thereby improving backwashing effect; meanwhile, the gas backwashing device is communicated with the bottom of the tank body, and the quartz sand filter layer is filtered by combining two flushing modes of gas backwashing and water backwashing, so that the backwashing effect is effectively improved, the water consumption of backwashing is reduced, and the water resource is saved.

The technical scheme of the utility model is realized like this:

an improved direct drinking water quartz sand tank comprises a tank body, wherein a quartz sand filter layer is arranged in the tank body, a water inlet pipe is arranged at the upper end of the tank body, a water suction pump is arranged on the water inlet pipe, a sewage discharge pipe is communicated with the middle of the water inlet pipe, and a multi-position control valve is arranged at the joint of the water inlet pipe and the sewage discharge pipe; the upper end of the tank body is also provided with an exhaust pipe and a manhole, one end of the exhaust pipe, which is far away from the tank body, is turned downwards to be communicated with a sewage collecting piece, and the exhaust pipe is provided with a first valve body; a water outlet pipe with a second valve body is arranged at the lower end of the tank body, the side wall of the water outlet pipe is communicated with a first branch pipe, an emptying valve is arranged on the first branch pipe, and one end, far away from the water outlet pipe, of the first branch pipe is communicated with a gas backwashing device; the lower end of the tank body is also provided with a recoil pipe, and the recoil pipe is provided with a recoil valve.

Furthermore, a water distribution pipe is arranged at the lower end in the tank body, the lower end of the water distribution pipe is communicated with the water outlet pipe, a plurality of water distributors are uniformly distributed at the upper end of the water distribution pipe along the circumferential direction, a plurality of water inlet holes are formed in the water distributors, and a filter screen is arranged in each water inlet hole.

Furthermore, a visual window is arranged on the side wall of the tank body.

Furthermore, the gas backwashing device comprises an air pump, and the air pump is communicated with the first branch pipe through a first air inlet pipe.

Furthermore, an annular steam pipe is arranged at the upper end in the tank body, and the annular steam pipe is connected with a high-pressure steam generator through a third air inlet pipe.

Further, high pressure steam generator includes storage water tank, high pressure water pump and the heating element who connects gradually through the pipeline, heating element includes the heating plug and sets up electrothermal tube in the heating plug, be provided with on the lateral wall of heating plug and follow the bottom of heating plug is to the helicla flute that the top spiral extends, the embedded water pipeline that is equipped with of helicla flute, the one end of water pipeline the storage water tank intercommunication, the other end and third intake pipe intercommunication.

Furthermore, the electric heating tube is spiral, the pitch of the electric heating tube is the same as that of the spiral grooves, and the spiral tube body of the electric heating tube is positioned in the heating core rod between the adjacent spiral grooves.

Furthermore, a one-way water valve is arranged between the high-pressure water pump and the water pipeline.

Further, the ozone generator is further included and is communicated with the lower end of the tank body through a second air inlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages that the exhaust pipe is arranged at the upper end of the tank body, when the raw water is filtered, the first valve body is closed, the raw water is injected into the tank body through the water inlet pipe by the water suction pump, the quartz sand filter layer filters the raw water, and the filtered raw water is discharged through the water outlet pipe to enter the next process; in the process of filtering raw water, gas in the tank body can be discharged through the exhaust pipe, so that the damage of a sealing ring of a manhole at the top due to overhigh pressure caused by the pressure build-up of the tank body is avoided; during back flushing, the water suction pump and the second valve body are closed, the valve positions of the multi-position control valve are switched to enable the sewage discharge pipe to be communicated, the pressure in the emptying tank body of the emptying valve is opened to enable the liquid level in the tank body to be reduced, then the gas back flushing device is started to fill gas into the tank body, the gas flows upwards to the exhaust pipe to be discharged, the gas enters the quartz sand filter layer to be stirred, and partial pollutant agglomerates in the gas are dispersed; because the emptying valve is opened before the gas backwashing, the liquid level in the tank body is reduced, so that the quartz sand can be prevented from losing from the top due to overhigh air pressure in the tank body in the gas backwashing process; after gas backwashing, slowly opening a backwashing valve and a first valve body, allowing clean water to enter the tank body from a backwashing pipe, backwashing a quartz sand filter layer, and flushing out pollutant agglomerates in the quartz sand layer along with water from a water inlet pipe, entering a sewage discharge pipe and entering an exhaust pipe for discharge; during the back washing process, the exhaust pipe can exhaust gas to prevent the tank body from being suppressed, so that quartz sand floats upwards and becomes loose during the back washing, the back washing effect is improved by matching with the back washing of water, and the exhaust pipe can also be used as a pipeline for discharging sewage; the quartz sand filter layer is filtered by combining two flushing modes of gas backwashing and water backwashing, so that the backwashing effect is effectively improved, the backwashing time is shortened, the water consumption of backwashing is reduced, and the water resource is saved.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic view of the heated mandrel of FIG. 2;

fig. 4 is a schematic structural view of the electrical heating tube in fig. 2.

Reference numerals:

100 tank bodies, 110 quartz sand filter layers, 120 manholes, 130 visual windows and 140 support legs;

210 water inlet pipe, 220 water pump, 230 sewage drain pipe and 240 multi-position control valve;

310 exhaust pipe, 320 first valve body;

a 410 water outlet pipe, a 420 second valve body, a 430 first branch pipe, a 440 emptying valve, a 450 water distribution pipe and a 451 water distributor;

510 back flushing pipe, 520 back flushing valve;

610 air pump, 620 first air inlet pipe;

710 annular steam pipe, 720 third air inlet pipe, 730 high-pressure steam generator, 731 water storage tank, 732 high-pressure water pump, 733 heating core rod, 734 electric heating pipe, 735 spiral groove, 736 water pipe and 737 one-way water valve;

810 ozone generator, 820 second air inlet pipe.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as "upper", "lower", "front", "rear", "left", "right", etc., are referred to the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, if there is any description of "first", "second", etc., it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Example one

Referring to fig. 1, an improved direct drinking water quartz sand tank provided according to an embodiment of the present invention includes a tank body 100, a support leg 140 for supporting is provided at the lower end of the tank body 100, a quartz sand filter layer 110 is provided at the middle part in the tank body 100, a water inlet pipe 210 is provided at the upper end of the tank body 100, a water suction pump 220 is provided on the water inlet pipe 210, a sewage discharge pipe 230 is communicated with the middle part of the water inlet pipe 210, and a multi-position control valve 240 is provided at the connection part of the water inlet pipe 210 and the sewage discharge pipe 230; the upper end of the tank body 100 is also provided with an exhaust pipe 310 and a manhole 120, the manhole 120 is detachably plugged with an end cover, a sealing ring is arranged between the manhole 120 and the end cover, one end of the exhaust pipe 310, which is far away from the tank body 100, is turned downwards to be communicated with a sewage collecting piece, the outlet of the exhaust pipe 310 is positioned right above the sewage collecting piece, and the exhaust pipe 310 is provided with a first valve body 320; a water outlet pipe 410 with a second valve body 420 is arranged at the lower end of the tank body 100, the side wall of the water outlet pipe 410 is communicated with a first branch pipe 430, an emptying valve 440 is arranged on the first branch pipe 430, and one end of the first branch pipe 430, which is far away from the water outlet pipe 410, is communicated with a gas back flushing device; the lower end of the tank 100 is further provided with a backflushing pipe 510, and the backflushing pipe 510 is provided with a backflushing valve 520. Compared with the prior art, the embodiment of the present invention has the exhaust pipe 310 arranged at the upper end of the tank body 100, when filtering raw water, the first valve body 320 is closed, the raw water is injected into the tank body 100 through the water inlet pipe 210 by the water pump 220, the quartz sand filter layer 110 filters the raw water, and the filtered raw water is discharged through the water outlet pipe 410 and enters the next process; in the process of filtering raw water, gas in the tank body 100 can be discharged through the exhaust pipe 310, so that the damage of a sealing ring of the manhole 120 at the top due to overhigh pressure caused by the pressure build-up of the tank body 100 is avoided; during backwashing, the water pump 220 and the second valve body 420 are closed, the valve positions of the multi-position control valve 240 are switched to enable the sewage discharge pipe 230 to be communicated, the emptying valve 440 is opened to empty the pressure in the tank body 100, so that the liquid level in the tank body 100 is reduced, then the gas backwashing device is started to fill gas into the tank body 100, the gas flows upwards to the exhaust pipe 310 to be discharged, the gas enters the quartz sand filter layer 110 to be stirred, and part of pollutant lumps in the gas are dispersed; because the emptying valve 440 is opened before the gas backwashing, the liquid level in the tank body 100 is reduced, the quartz sand loss from the top due to the overhigh air pressure in the tank body 100 can be avoided in the process of the gas backwashing; after the gas backwashing is finished, the backwashing valve 520 and the first valve body 320 are slowly opened, the purified water enters the tank body 100 from the backwashing pipe 510, the quartz sand filter layer 110 is backwashed, and pollutant agglomerates in the quartz sand layer are flushed out to enter the sewage drain pipe 230 from the water inlet pipe 210 and enter the exhaust pipe 310 to be discharged into the sewage collecting part; in the process of backwashing, the exhaust pipe 310 can exhaust gas to prevent the tank body 100 from being suppressed so that quartz sand floats upwards and becomes loose during backwashing, the backwashing effect is improved by matching with the backwashing of water, and the exhaust pipe can also be used as a pipeline for discharging sewage; the quartz sand filter layer 110 is filtered by combining two flushing modes of gas backwashing and water backwashing, so that the backwashing effect is effectively improved, the backwashing time is shortened, the water consumption for backwashing is reduced, and the water resource is saved. When the quartz sand tank does not work, the manhole 120 can be opened to be overhauled.

Preferably, a water distribution pipe 450 is arranged at the lower end in the tank 100, the lower end of the water distribution pipe 450 is communicated with the water outlet pipe 410, a plurality of water distributors 451 are uniformly distributed at the upper end of the water distribution pipe 450 along the circumferential direction, a plurality of water inlet holes are arranged on the water distributors 451, and a filter screen is arranged in each water inlet hole. Considering that in the process that raw water enters the tank body 100 from the water inlet pipe 210 and is filtered by the quartz sand filter layer 110, the raw water washes the quartz sand filter layer 110 to generate quartz sand particles, and the quartz sand particles enter the next process along with the filtered raw water through the water outlet pipe 410 to influence the work of the next process; by arranging the water distribution pipe 450 below the quartz sand filter layer 110 and arranging the filter screen in the water inlet hole, the filter screen can separate the quartz sand particles from the filtered raw water, thereby preventing the quartz sand particles from being discharged together with the filtered raw water through the water outlet pipe 410 and entering the next process.

Preferably, a viewing window 130 is provided on a sidewall of the can body 100. The filtering condition of raw water or the back washing condition of the quartz sand filtering layer 110 in the tank body 100 can be observed in real time through the visual window 130.

Preferably, the gas backwashing means includes a suction pump 610, and the suction pump 610 is communicated with the first branch pipe 430 through a first gas inlet pipe 620. By the arrangement, when gas backwashing is carried out, the pressure in the tank body 100 is relieved by opening the relief valve 440 firstly, so that the liquid level in the tank body 100 is reduced, then the air pump 610 is started to fill gas into the tank body 100, the gas flows upwards to the exhaust pipe 310 to be discharged, the gas enters the quartz sand filter layer 110 to be stirred, pollutant caking in the quartz sand filter layer is flushed, the pollutant caking is loosened, the pollutant caking is conveniently released from the quartz sand filter layer 110 under the action of backwashing of clean water and is discharged along with sewage, and the backwashing effect is effectively improved.

Example two

Referring to fig. 2 to 4, the embodiment of the present invention is different from the first embodiment in that an annular steam pipe 710 is disposed at an upper end inside the tank 100, and the annular steam pipe 710 is connected to a high pressure steam generator 730 through a third intake pipe 720. According to the arrangement, in the cleaning process, before gas backwashing and water backwashing, the high-pressure steam generator 730 is started to generate high-pressure steam, the high-pressure steam enters the annular steam pipe 710 through the third air inlet pipe 720 and then enters the tank body 100 and passes through the quartz sand filtering layer 110 from top to bottom, so that pollutant agglomerates on the quartz sand filtering layer 110 are heated and softened, the adhesive force between the pollutant agglomerates and the quartz sand filtering layer 110 is reduced, the pollutant agglomerates are further loosened under the subsequent gas backwashing effect, the pollutant agglomerates are thoroughly separated from the quartz sand filtering layer 110 under the backwashing effect of clean water and are discharged along with sewage, and the backwashing effect is effectively improved.

Preferably, the high pressure steam generator 730 includes a water storage tank 731, a high pressure water pump 732 and a heating component connected in sequence through a pipe, the heating component includes a heating core rod 733 and an electric heating tube 734 arranged in the heating core rod 733, a spiral groove 735 spirally extending from the bottom to the top of the heating core rod 733 is arranged on the outer side wall of the heating core rod 733, a water pipe 736 is embedded in the spiral groove 735, one end of the water pipe 736 is communicated with the water storage tank 731, and the other end is communicated with the third air inlet pipe 720. The water output from the water storage tank 731 is pressurized by the high pressure water pump 732 and delivered to the water passage 736, and since the water passage 736 is spirally wound on the outer side wall of the heating core rod 733, the contact path between the water passage 736 and the heating core rod 733 is extended, so that the condensed water input to the water passage 736 is better converted into steam under the heating action of the electric heating tube 734, and finally the high pressure steam is delivered from the water passage 736 to the annular steam pipe 710 through the third air inlet pipe 720. It is understood that the heating core 733 and the water passage 736 are made of materials having good heat conductivity.

Further preferably, a heat insulating sleeve is sleeved outside the heating core rod 733, and the water passage 736 is enclosed between the heat insulating sleeve and the heating core rod 733, so that the heat insulating sleeve can reduce heat loss and energy consumption.

It is further preferred that the electrical heating tube 734 is helical, the pitch of the electrical heating tube 734 is the same as the pitch of the helical groove 735, and the helical tube body of the electrical heating tube 734 is located in the heating core 733 between adjacent helical grooves 735. This arrangement makes it possible to sufficiently utilize the internal space of the heating core rod 733, and the electric heating tube 734 is located as close as possible to the spiral groove 735, thereby improving the heating efficiency.

Preferably, a one-way water valve 737 is provided between the high pressure water pump 732 and the water passage 736 to prevent the reverse flow of water or steam.

Preferably, the ozone generator 810 is further included, and the ozone generator 810 is communicated with the lower end of the tank 100 through a second air inlet pipe 820. In this way, a small amount of ozone can be filled into the liquid at the bottom of the tank 100 during the process of filtering the raw water, and the ozone can decompose organic substances and the like in the raw water to a certain extent, thereby improving the biodegradability of the raw water.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An improved direct drinking water quartz sand tank is characterized by comprising a tank body, wherein a quartz sand filter layer is arranged in the tank body, a water inlet pipe is arranged at the upper end of the tank body, a water suction pump is arranged on the water inlet pipe, a sewage discharge pipe is communicated with the middle of the water inlet pipe, and a multi-position control valve is arranged at the joint of the water inlet pipe and the sewage discharge pipe; the upper end of the tank body is also provided with an exhaust pipe and a manhole, one end of the exhaust pipe, which is far away from the tank body, is turned downwards to be communicated with a sewage collecting piece, and the exhaust pipe is provided with a first valve body; a water outlet pipe with a second valve body is arranged at the lower end of the tank body, the side wall of the water outlet pipe is communicated with a first branch pipe, an emptying valve is arranged on the first branch pipe, and one end, far away from the water outlet pipe, of the first branch pipe is communicated with a gas backwashing device; the lower end of the tank body is also provided with a recoil pipe, and the recoil pipe is provided with a recoil valve.

2. An improved direct drinking water quartz sand tank according to claim 1, characterized in that a water distribution pipe is arranged at the lower end in the tank body, the lower end of the water distribution pipe is communicated with the water outlet pipe, a plurality of water distributors are uniformly distributed at the upper end of the water distribution pipe along the circumferential direction, a plurality of water inlet holes are arranged on the water distributors, and a filter screen is arranged in each water inlet hole.

3. An improved direct drinking water quartz sand tank as claimed in claim 1, wherein the side wall of the tank body is provided with a visual window.

4. An improved direct drinking water quartz sand tank as claimed in claim 1, wherein said gas back flush device comprises a suction pump, said suction pump is communicated with said first branch pipe through a first gas inlet pipe.

5. An improved direct drinking water quartz sand tank as claimed in claim 1, wherein the upper end in the tank body is provided with an annular steam pipe, and the annular steam pipe is connected with a high pressure steam generator through a third air inlet pipe.

6. An improved direct drinking water quartz sand tank according to claim 5, wherein the high pressure steam generator comprises a water storage tank, a high pressure water pump and a heating component which are connected in sequence through a pipeline, the heating component comprises a heating core rod and an electric heating tube arranged in the heating core rod, a spiral groove which extends spirally from the bottom to the top of the heating core rod is arranged on the outer side wall of the heating core rod, a water pipeline is embedded in the spiral groove, the water storage tank is communicated with one end of the water pipeline, and the other end of the water pipeline is communicated with a third air inlet pipe.

7. An improved direct drinking water quartz sand tank as set forth in claim 6, wherein said electric heating tube is spiral, the pitch of said electric heating tube is the same as the pitch of said spiral groove, the spiral tube body of said electric heating tube is located in said heating core rod between adjacent said spiral grooves.

8. An improved direct drinking water quartz sand tank as claimed in claim 6, wherein a one-way water valve is provided between the high pressure water pump and the water pipeline.

9. An improved direct drinking water quartz sand tank as claimed in claim 1, further comprising an ozone generator, wherein said ozone generator is communicated with the lower end of said tank body through a second air inlet pipe.

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