CN201587866U - An automatic control water treatment device - Google Patents

Abstract

The utility model provides an automatic control water-treatment device. The water-treatment device comprises a raw water pump, a filter and a clear water tank which are connected in sequence through a pipeline; the water-treatment device further comprises a clear water level device for detecting the liquid level in the clear water tank and a controller respectively and electrically connected with the clear water level device and the raw water pump and used for receiving the liquid level detected by the clear water level device; when the liquid level in the clear water tank is lower than the predetermined liquid level, the raw water pump is controlled to be opened, and the water-treatment device enters into water-making state; otherwise, the raw water pump is controlled to be closed, and the water-treatment device enters into stand-by state; and the predetermined liquid level is 50-90 percent the highest allowable liquid level of the clear water tank. The water-treatment device realizes the automatic control during the entire water-making process and provides convenience for users.

Description

An automatic control water treatment device

technical field

The utility model relates to a water treatment device, in particular to an automatically controlled water treatment device.

Background technique

In recent years, with the rapid development of my country's rural economy, the large-scale and intensive breeding industry has developed rapidly, but its pollution to the rural ecological environment has also increased sharply. Intensive breeding pollution has caused enormous pressure on agriculture and the rural ecological environment, especially the water bodies of drinking water sources in villages and towns, and has affected the safety of drinking water in rural areas. The vast rural areas in South my country mainly use natural water bodies such as ponds, dams, surface water or shallow groundwater as drinking water sources. The arbitrary discharge of intensive farming sewage has caused serious pollution of the rural water environment and water sources, making the safety of rural drinking water increasingly prominent. .

At present, the traditional process of drinking water treatment is generally "coagulation sedimentation-filtration-disinfection-purification". Micro-pollution, mainly organic pollution, cannot completely remove organic pollutants, resulting in sometimes substandard water quality, and the entire water treatment system is very large, complicated to operate, difficult to fully automate, and has high maintenance and operating costs, so it is not suitable for Countryside. Also have not developed a kind of simple in structure, easy to operate and low cost automatic control water treatment device applicable to rural areas at present.

Utility model content

In order to overcome the defects of existing bioactive physical treatment devices, such as large system, complex operation, difficulty in realizing complete automation, and high maintenance and operation costs, the utility model provides a water treatment device with simple structure and high degree of automation.

The automatically controlled water treatment device provided by the utility model includes: a raw water pump, a filter device, and a clean water tank that are sequentially connected through pipelines, wherein the water treatment device also includes a clean water level device, used to detect the clean water tank The liquid level in; the controller is electrically connected with the clean water level gauge and the raw water pump respectively, and is used to receive the liquid level detected by the clean water level gauge, and when the liquid level in the clean water tank is higher than When the liquid level is predetermined, the raw water pump is controlled to turn on, and the water treatment device enters the water production state; otherwise, the raw water pump is controlled to be turned off, and the water treatment device enters the standby state.

The water treatment device of the utility model can automatically control the opening and closing of the raw water pump according to the liquid level of the clean water in the clean water tank, realizes the automatic control of the whole water production process, reduces manual operations, and provides convenience for users. Therefore, the water treatment device of the present invention has the advantages of simple structure and convenient operation, and is very suitable for water treatment in rural areas.

Description of drawings

Fig. 1 is the structural representation of the water treatment device of the present utility model;

Fig. 2 is the structural representation of the first embodiment of the water treatment device of the present invention;

3 is a schematic structural view of a second embodiment of the water treatment device of the present invention;

4 is a schematic structural view of a third embodiment of the water treatment device of the present invention;

FIG. 5 is a schematic structural view of a fourth embodiment of the water treatment device of the present invention; and

Fig. 6 is a schematic structural view of a fifth embodiment of the water treatment device of the present invention.

Detailed ways

Describe the utility model in detail below with reference to accompanying drawing.

Fig. 1 shows the structure of the water treatment device of the present invention, wherein the dashed line indicates the flow direction of the signal, and the solid line indicates the flow direction of the water. As shown in Figure 1, the automatically controlled water treatment device provided by the utility model includes a raw water pump 20, a filter device 40, and a clean water tank 60 connected in sequence through pipelines, wherein the water treatment device also includes: a clean water level The device 80 is used to detect the liquid level in the clean water tank 60; the controller 90 is electrically connected to the purified water level device 80 and the raw water pump 20 respectively, and is used to receive the detected water level of the purified water level device 80. liquid level, and when the liquid level in the clean water tank 60 is lower than the predetermined liquid level, the raw water pump 20 is controlled to open, and the water treatment device enters the water production state; otherwise, the raw water pump 20 is controlled to be closed, and the water treatment device enters the standby state.

Wherein, the raw water pump 20 is used to provide raw water to the filter device 40; the water purification level device 80 can be an electronic liquid level switch or a float switch; the controller 90 can be a programmable controller CPM1A-20CDR . The predetermined liquid level can be set according to actual needs, for example, the predetermined liquid level can be 50-90% of the highest allowable liquid level of the clean water tank 10, preferably 60-80%; The liquid level is defined as the highest liquid level of the liquid that the clean water tank can hold.

Wherein, the filter device 40 includes a filter membrane assembly 410 and a water inlet part 420 and a water production part 430 separated by the filter membrane module 410, the water inlet part 420 is connected to the water outlet of the primary filter device 100 through a pipeline, The water production part 430 is connected with the clean water tank 60 through pipelines. The particle size of the largest particle that the filter device 40 allows to pass is 0.005-0.015 μm, preferably 0.01 μm; the filter membrane assembly 410 can adopt a PVC alloy capillary ultrafiltration membrane, and the pore size of the ultrafiltration membrane is 0.005-0.01 μm. 0.015 μm.

In general, raw water usually contains a large amount of sediment, clay, suspended solids, algae, biological mud, corrosion products, and macromolecular organic matter, etc., and the existence of these substances is easy to physically interact with the filter membrane module 410 in the filter device 40. Chemical or mechanical action causes adsorption and precipitation on the surface of the membrane or in the pores of the membrane, which makes the pores of the membrane smaller or blocked, resulting in a decrease in the water permeability or separation capacity of the membrane. Preferably, as shown in FIG. 2 , the water treatment device of the present invention further includes a primary filter device 100, which is connected to the pipeline between the raw water pump 10 and the filter device 40, and the primary filter device The particle size of the largest particle allowed to pass by 100 is larger than the particle size of the largest particle allowed to pass by the filtering device 40 . The primary filter device 100 is used to remove sediment, clay, suspended solids, algae, bio-sludge, corrosion products, macromolecular organic matter, etc. in raw water, so as to prevent these substances from clogging the membrane pores and maintain the water permeability and separation capacity of the membrane. . The particle size of the largest particle that the primary filter device 100 allows to pass is 6-12 μm. The filter element of the primary filter device 100 may be a polypropylene melt-blown filter element with a pore size of 6-12 μm, which has the advantages of large filtration area and small pressure loss. Moreover, the primary filter device 100 can also be equipped with a plurality of filter elements, and the plurality of filter elements are operated in parallel, so as to obtain greater water production.

Preferably, as shown in FIG. 3 , the filtering device 40 also has a first concentrated water discharge port 440 located in the water production part 430; the water treatment device also includes a produced water valve 50 and a first concentrated water valve 110 , the water production valve 50 is located in the pipeline between the water production part 430 and the clean water tank 60, the first concentrated water valve 110 is connected to the first concentrated water discharge port 440 through a pipeline; the control Before controlling the water treatment device to enter the water production state, the device 90 first controls the production water valve 50 to be disconnected, the first concentrated water valve 110 to be turned on, and the raw water pump 20 to be turned on. Normal washing: After the water treatment device passes through the normal washing state, the controller 90 controls the water production valve 50 to be turned on, the first concentrated water valve 110 to be disconnected, the raw water pump 20 to be turned on, and the water treatment device enters the water production state. The above positive washing process can remove the residual impurities on the filter membrane module 410 before filtering the raw water, prevent the impurities from being brought into the clean water tank 60, and ensure the quality of the water flowing through the filter membrane module 410.

The controller 90 can also control the water treatment device to switch cyclically between the normal washing state and the water production state. The duration of the normal washing state and the water production state can be set according to actual needs, for example, they can be respectively For 15-60 seconds and 20-80 minutes. Through such a circular flushing method, it is possible to prevent the filter membrane module 410 from accumulating too much residual impurities due to long-term operation, which will affect its water permeability or separation ability.

Preferably, as shown in FIG. 4 , the filter device 40 also has a second concentrated water discharge port 450 and a backwash water inlet 460 located at the water inlet part 420 and the water production part 430 respectively, and the backwash water inlet 460 Connect with the water outlet of the raw water pump 20 or the water outlet of the primary filter device 100 through a pipeline;

The water treatment device also includes a water inlet valve 30 , a water production valve 50 , a second concentrated water valve 120 and a backwash valve 130 , and the water inlet valve 30 is located at the water outlet and the water inlet part 420 of the primary filter device 20 In the pipeline between, the water production valve 50 is located in the pipeline between the water production part 430 and the clean water tank 60, the second concentrated water valve 120 and the second concentrated water discharge port 450 pass through the pipeline The backwash valve 130 is located in the pipeline between the water outlet of the raw water pump 20 or the water outlet of the primary filter device 100 and the backwash water inlet 460;

The controller 90 controls the water inlet valve 30 and the water production valve 50 to be turned on, the backwash valve 130 and the second concentrated water valve 120 are disconnected, the raw water pump 20 is turned on, and the water treatment device enters the water production state; After the water production state, the controller 90 controls the water inlet valve 30 and the water production valve 50 to be disconnected, the backwash valve 130 and the second concentrated water valve 120 to be turned on, the raw water pump 20 to be turned on, and the water treatment device to enter backwashing state, to backwash the filter device 40. Through this interleaved filtering operation mode, it is ensured that the pollutants intercepted on the membrane surface are removed before forming a thicker filter cake, so that the membrane flux of the filtration membrane module 410 does not undergo a large attenuation.

Preferably, the controller 90 controls the water treatment device to switch cyclically between the water production state and the backwash state, and the duration of the water production state and the backwash state can be set according to needs, for example, it can be 20-80 minutes and 15-60 seconds, respectively. Through this operating mode of circulating backflow plus false filtration, it is more effective to ensure that the filtration membrane module 410 can still maintain the membrane flux without large attenuation under the condition of long-time operation.

It should be noted here that the clean water level device 80, the controller 90 and the controller 90 together with the raw water pump 20, the water inlet valve 30, the produced water valve 50, the second concentrated water valve 120 and the backwashing valve are omitted in Fig. 4 . The signal connection between the valves 130 is to avoid confusion in the connection in the figure. In addition, FIG. 4 only shows the situation that the backwash water inlet 460 is connected to the water outlet of the primary filter device 100 through a pipeline. In fact, in the absence of the primary filter device 100, the backwash water inlet 460 can also be connected with The water outlet of the raw water pump 20 is connected, or connected with other water supply sources that can provide water required for backwashing.

Preferably, as shown in FIG. 5 , the filtering device 40 also has a first concentrated water discharge port 440, a second concentrated water discharge port 450 and a backwash water inlet 460, and the second concentrated water discharge port 450 is located at the water inlet Part 420, the first concentrated water discharge port 440 and the backwash water inlet 460 are located in the water production part 430, and the backwash water inlet 460 and the water outlet of the raw water pump 20 or the water outlet of the primary filter device 100 pass through a pipeline connected;

The water treatment device also includes a water inlet valve 30, a water production valve 50, a first concentrated water valve 110, a second concentrated water valve 120 and a backwash valve 130, and the water inlet valve 30 is located at the primary filter device 100 In the pipeline between the water outlet and the water inlet part 420, the water production valve 50 is located in the pipeline between the water production part 430 and the clean water tank 60, the first concentrated water valve 110, the second concentrated water The valve 120 is respectively connected to the first concentrated water discharge port 440 and the second concentrated water discharge port 450 through pipelines, and the backwash valve 130 is located at the water outlet of the raw water pump 20 or the water outlet of the primary filter device 100 and the reverse In the pipeline between the washing water inlet 460;

Before controlling the water treatment device to enter the water production state, the controller 90 first controls the water inlet valve 30 and the first concentrated water valve 110 to be turned on, and the produced water valve 50, the second concentrated water valve 120 and the backwash valve 130 to be turned off 1. The raw water pump 20 is turned on, and the water treatment device enters the normal washing state to perform normal washing on the filter device 40; after the water treatment device passes through the normal washing state, the controller 90 controls the water inlet valve 30 and the water production valve 50 Conduction, the first concentrated water valve 110, the second concentrated water valve 120 and the backwash valve 130 are disconnected, the raw water pump 20 is turned on, and the water treatment device enters the water production state; after the water treatment device passes through the water production state, the The controller 90 controls the water inlet valve 30, the produced water valve 50 and the first concentrated water valve 110 to be disconnected, the backwash valve 130 and the second concentrated water valve 120 to be turned on, the raw water pump 20 to be turned on, and the water treatment device enters the backwashing state , to backwash the filter device 40.

In this mode of operation, each water production process is accompanied by a forward washing process and a backwashing process, which prevents the impurities on the filter membrane in the filter device 40 from being brought into the clean water tank 60 and the membrane of the filter membrane. Flux will not decay.

Preferably, the controller 90 controls the water treatment device to cyclically switch between the forward washing state, the water production state and the backwashing state, and the durations of the forward washing state, the water production state and the backwashing state are respectively For 15-60 seconds, 20-80 minutes and 15-60 seconds. Compared with one time of forward washing and backwashing, this cycle of forward washing, water production, and backwashing increases the number of times of forward washing and backwashing, and can clean the filter membrane module 410 more effectively.

Wherein, the controller 90 can control the raw water pump 20 , the water inlet valve 30 , the produced water valve 50 , the backwash valve 130 , the first concentrated water valve 110 and the second concentrated water valve 120 according to Table 1 below. The duration of the water production state and the duration of the backwash state can be selected according to Table 2 below. It should be noted that the data in Table 1 and Table 2 are all exemplary, just for the convenience of understanding the present invention.

Table 1

Table 2

Duration of water production (minutes) Backwash time (seconds) 20 15

Duration of water production (minutes) Backwash time (seconds) 30 25 50 40 80 60

Preferably, as shown in Figure 6, the water treatment device provided by the utility model can also include a liquid medicine container 140 for containing the liquid medicine; and a metering pump 150, the input port of the metering pump 150 is connected to the liquid medicine container 140 is connected, and the output port is connected to the pipeline between the raw water pump 10 and the primary filter device 100, or the pipeline between the primary filter device 100 and the filter device 40 (as shown in the dotted line in Figure 6, the dotted line is here It does not represent the flow direction of the signal, but the flow direction of the liquid medicine); the controller 90 is electrically connected with the metering pump 150, and is used to control adding the liquid medicine in the liquid medicine container 140 into the pipeline.

Wherein, the medicinal liquid can be various disinfectants, such as NaClO, bleaching powder, etc., which are mainly used to remove harmful foreign matter (such as microorganisms or various algae including E. The inventor of the utility model found that microbial contamination is a risk factor for the long-term safe operation of the filter membrane, some nutrients are intercepted by the filter membrane module 410 and accumulate on the membrane surface of the filter membrane module 410, and bacteria in this environment Propagate rapidly, and live bacteria together with their excreted substances form microbial mucus and adhere tightly to the membrane surface of filter membrane module 410. These mucus combine with other sediments to form a complex covering layer, which not only affects The water permeability of the filter membrane module 410 will also cause irreversible damage to the filter membrane module 410. By adding a liquid medicine container to the water treatment device, the harmful foreign matter in the raw water can be effectively reduced, so that the filter device can work for a long time without Not to be blocked.

The water treatment device of the utility model realizes the automatic control of the whole water production process, has a simple structure, and is very suitable for water treatment in rural areas.

Claims (7)

1. automatic water treatment device of control, this device comprises raw water pump (20), filtration unit (40) and the clear water tanks (60) that links to each other by pipeline successively, it is characterized in that described water treatment device also comprises:

Water purification liquid level meter (80) is used for detecting the liquid level of clear water tanks (60);

Controller (90) is electrically connected with described water purification liquid level meter (80) and raw water pump (20) respectively, is used to receive the liquid level that described water purification liquid level meter (80) is detected, and when the liquid level in the clear water tanks (60) was lower than predetermined fluid level, control raw water pump (20) was opened; Otherwise control raw water pump (20) cuts out, and described predetermined fluid level is the 50-90% of the highest permission liquid level of described clear water tanks (60).

2. water treatment device according to claim 1, it is characterized in that, described water treatment device also comprises primary filter device (100), this primary filter device (100) is connected on the pipeline between described raw water pump (10) and the filtration unit (40), and this primary filter device (100) allows the particle diameter of the largest particle that passes through to allow the particle diameter of the largest particle that passes through greater than described filtration unit (40).

3. water treatment device according to claim 2, it is characterized in that, described filtration unit (40) comprises filtering film component (410) and the water inlet portion (420) and the product water section (430) that are separated by this filtering film component (410), described water inlet portion (420) links to each other by pipeline with the water outlet of primary filter device (100), and described product water section (430) links to each other by pipeline with clear water tanks (60).

4. water treatment device according to claim 3 is characterized in that, described filtration unit (40) also has the first concentrated water discharge mouth (440) that is positioned at described product water section (430); Described water treatment device also comprises the product water valve (50) and the first dense water valve (110), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), and the described first dense water valve (110) links to each other by pipeline with the described first concentrated water discharge mouth (440).

5. water treatment device according to claim 3, it is characterized in that, described filtration unit (40) also has the second concentrated water discharge mouth (450) and the backwash water inlet (460) that lays respectively at described water inlet portion (420) and produce water section (430), and this backwash water inlet (460) links to each other by pipeline with the water outlet of raw water pump (20) or the water outlet of primary filter device (100);

Described water treatment device also comprises water intaking valve (30), produce water valve (50), the second dense water valve (120) and backwash valve (130), described water intaking valve (30) is arranged in the water outlet of described primary filter device (100) and the pipeline between the water inlet portion (420), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), the described second dense water valve (120) links to each other by pipeline with the described second concentrated water discharge mouth (450), and described backwash valve (130) is arranged in water outlet or the water outlet of primary filter device (100) and the pipeline between the described backwash water inlet (460) of raw water pump (20).

6. water treatment device according to claim 3, it is characterized in that, described filtration unit (40) also has the first concentrated water discharge mouth (440), the second concentrated water discharge mouth (450) and backwash water inlet (460), the second concentrated water discharge mouth (450) is positioned at described water inlet portion (420), described first concentrated water discharge mouth (440) and backwash water inlet (460) are positioned at described product water section (430), and described backwash water inlet (460) links to each other by pipeline with the water outlet of raw water pump (20) or the water outlet of primary filter device (100);

Described water treatment device also comprises water intaking valve (30), produce water valve (50), the first dense water valve (110), the second dense water valve (120) and backwash valve (130), described water intaking valve (30) is arranged in the water outlet of described primary filter device (100) and the pipeline between the water inlet portion (420), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), the described first dense water valve (110), the second dense water valve (120) links to each other by pipeline with the second concentrated water discharge mouth (450) with the described first concentrated water discharge mouth (440) respectively, and described backwash valve (130) is arranged in the water outlet of the water outlet of raw water pump (20) or primary filter device (100) and described backwash water and goes into pipeline between (460).

7. water treatment device according to claim 2 is characterized in that, this water treatment device also comprises:

Medical liquid container (140) is used to hold soup; And

Volume pump (150), the input aperture of this volume pump (150) is connected with described medical liquid container (140), and delivery port is communicated to pipeline between described raw water pump (10) and the primary filter device (100) or the pipeline between primary filter device (100) and the filtration unit (40);

Described controller (90) is electrically connected with described volume pump (150), is used for control the soup of medical liquid container (140) is joined among the pipeline.

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