CN101786698A - One-way pipeline film purifying device for drinking water - Google Patents

Abstract

A one-way pipeline membrane purification device for drinking water, the water pump (1) is connected in series with the water purifier (5) through the water distribution pipe (2), and is characterized in that: the water pump (1) passes between the inlet and the outlet of the water purifier (5) The pressure measuring tube (4) is connected with the differential pressure sensor (6); on the water distribution pipe (2) of the inlet and outlet of the water purifier (5), an electric valve (3) is connected in series respectively; the differential pressure sensor ( 6) The signal output end is connected with the input end of a controller (7), the output end of the controller (7) is connected with the electric valve (3), and the controller (7) is connected to the two ends of the water purifier (5). The differential pressure between monitors the working state of the water purifier (5). This technology can be operated by a professional cleaning company to perform off-line cleaning, testing and maintenance of the one-way pipeline membrane purification device. Make the water quality at the end of the water supply reach the standard.

Description

One-way pipeline membrane purification device for drinking water

technical field

The invention relates to a drinking water purification device, in particular to a purification device capable of purifying pipeline water quality degraded in a community at the end of a water supply pipe network, which can effectively solve the problem that the water quality at the end of drinking water does not meet the standard.

Background technique

At present, the national standard "Drinking Water Hygienic Standard" (GB5749-2006) has raised the detection indicators of drinking water from 35 to 106, and requires users to meet the standard. Because the tap water is "secondarily polluted" by the water supply pipe network after leaving the factory, there are physical, chemical and biological effects on the pipe wall to produce "pipe scale". The tap water treated by the water plant flows through the water supply pipe network. Drinking water that meets national standards is used, and it is difficult to improve the water purification capacity of water plants to ensure that users' drinking water meets the sanitary standards for drinking water.

Contents of the invention

In order to ensure the quality of drinking water for residents, the present invention provides a one-way pipeline membrane purification device for drinking water. The device is equivalent to a pipeline accessory, which purifies the water quality before the end of the water supply pipe network enters the community and building users, and can perform automatic operation; the membrane module has low pollution, long service life, and can be cleaned offline.

The technical solution adopted by the present invention to solve the technical problem is: the water pump (1) is connected in series with the water purifier (5) through the water distribution pipe (2), and it is characterized in that: between the inlet and the outlet of the water purifier (5) The space is connected with the pressure difference sensor (6) through the pressure measuring tube (4); on the water distribution pipe (2) of the inlet and outlet of the water purifier (5), an electric valve (3) is connected in series respectively; the pressure difference The signal output end of sensor (6) is connected with the input end of a controller (7), and the output end of this controller (7) is connected with this electric valve (3), and controller (7) according to water quality purifier (5) The pressure difference between the two ends monitors the working state of the water purifier (5).

The water purifier (5) is a one-way pipeline membrane purifier, comprising a cylindrical shell (51), a water distribution cover (52), a water collection cover (53) and a tube filter membrane assembly (54). (51) is equipped with a plurality of tube filter membrane modules (54) arranged in parallel at intervals, and a conical water distribution cover (52) and a water collection cover (53) are respectively installed at both ends of the cylindrical shell (51). The blind plate (521) in the water distribution cover (52) closes one end of each tube filter membrane module (54), and the fixing steel bar (522) in the water distribution cover (52) fixes each tube filter membrane module (54) , the blind plate (531) in the water collecting cover (53) seals the gap between the other ends of each tube filter membrane assembly (54); the top of the water distribution cover (52) and the water collecting cover (53) are respectively provided with The inlet (55) and the outlet (56) of the water purifier (5).

The tube filter membrane assembly (54) comprises an outer support (541), a filter membrane (542) and an inner support (543) in the membrane, and a tubular outer support (541) and an inner support (543) with mesh ) are nested together, and a filter membrane (542) is installed between the two.

Two sets of water purifiers (5), electric valves (3), controllers (7) and differential pressure sensors (6) described above are arranged in parallel. After being purified by a set of water purifiers, water is supplied to the community. When the pressure difference between the two ends of the water purifier is large, the differential pressure sensor outputs the monitored signal to the controller, and the controller automatically turns on another set of water purifiers and turns them off. The electric valve of the current water purifier ensures the continuous supply of purified drinking water in the community.

The beneficial effects of the present invention are that the water quality of the water supply pipe network can be purified to meet the national drinking water hygiene standard, the purification result of the one-way pipeline membrane water quality purifier can be automatically monitored, and uninterrupted water supply can be guaranteed; the water volume of the one-way pipeline membrane purification device can be Up to 100m ³ /d, the removal rate of organic matter can reach more than 80%, and the turbidity and chromaticity of drinking water can be significantly improved.

Description of drawings

Fig. 1 is the overall structural representation of the embodiment of the present invention;

Fig. 2 is the structural representation of the one-way pipeline membrane purifier of invention;

Fig. 3 is A-A sectional view of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 2;

Fig. 5 is a partial cross-sectional structural diagram of a single filter membrane module inside the one-way pipeline membrane purifier in Fig. 2 .

Description of reference signs: 1. Water pump, 2. Water distribution pipe, 3. Electric valve, 4. Pressure measuring pipe, 5. One-way pipe membrane purifier, 51. Cylindrical shell, 52. Water distribution cover, 521. Inside the water distribution cover Blind plate in 522. Fixed reinforcement in water distribution cover, 53. Water collection cover, 531. Blind plate in water collection cover, 54. Single filter membrane module, 541. Membrane outer support, 542. Filter membrane, 543. Membrane Inner support, 55. inlet, 56. outlet, 6. differential pressure sensor, 10. water inlet (water distribution) channel, 11. water outlet (water collection) channel.

Detailed ways

Referring to Fig. 1, water pump 1 is connected in series with water purifier 5 through water distribution pipe 2, and is connected with differential pressure sensor 6 by pressure measuring tube 4 between described water purifier 5 inlet 55 and outlet 56 (referring to Fig. 2); An electric valve 3 is connected in series respectively on the water distribution pipe 2 of the inlet and outlet of the water purifier 5; the signal output end of the differential pressure sensor 6 is connected with the input end of a controller 7, and the output end of the controller 7 is connected with the input end of the controller 7. The electric valve 3 is connected, and the controller 7 monitors the working state of the water purifier 5 according to the pressure difference between the two ends of the water purifier 5 (when the pressure difference is higher than a certain value, it indicates that the filter membrane is seriously clogged and needs to be cleaned or replaced) .

In order to increase the purification capacity, two (or more) sets of water quality purifiers 5, electric valves 3, controllers 7 and differential pressure sensors 6 can be arranged in parallel. The two controllers 7 can be set separately or combined into one.

Referring to Fig. 2, Fig. 3 and Fig. 4, the described water quality purifier 5 is a one-way pipeline membrane purifier, comprising a cylindrical shell 51, a water distribution cover 52, a water collection cover 53 and a tube filter membrane assembly 54, in the cylindrical shell 51 is equipped with a plurality of tube filtration membrane modules 54 arranged in parallel at intervals, and a conical water distribution cover 52 and a water collection cover 53 are respectively installed at both ends of the cylindrical shell 51. The blind plate 521 in the water distribution cover 52 will One end of each tube filter membrane module 54 is closed, between the blind plates 521 or between each tube filter membrane module 54, the fixing steel bars 522 are mutually connected and fixed, and the blind plate 531 in the water collection cover 53 connects each tube filter membrane module 54 The gap between the other ends is closed; the tops of the water distribution cover 52 and the water collection cover 53 are respectively provided with an inlet 55 and an outlet 56 of the water purifier 5 .

Referring to Fig. 5, the described tube filtration membrane assembly 54 comprises a membrane outer support 541, a filter membrane 542 and a membrane inner support 543. A filter membrane 542 is installed between them. The outer side of each membrane stent 541 is the water inlet channel 10, each membrane stent 543

The inner side is the water outlet channel 11. During work, the filtered water enters the water inlet channel 10 on the outside of each tube filter membrane module 54, and after being filtered by the filter membrane 542, flows out from the water outlet channel 11 in each tube filter membrane module 54 to realize filtration (see Fig. 2 and arrow in Figure 5). The water quality purifier 5 with this structure can greatly increase the filtration capacity and filtration density of the filter membrane, facilitate backwashing, recover the filtration capacity, and be reusable.

When the present invention is applied, it is installed on the branch pipe of the water supply network entering the community, and as a pipeline accessory, the one-way pipeline membrane water quality purification device is installed in the inspection well of the community; it can also be combined with the pressurized pump station of the community and installed in the pump station After pressing the hose. During operation, the feed water is purified by a set of water purifier 5 and then supplied to the community. When the pressure difference between the two ends of the water purifier 5 is large, the differential pressure sensor 6 outputs the monitored signal to the controller 7, and the controller 7 automatically turns on another A set of water purifier 5, and close the electric valve 3 of current water purifier 5, guarantee the continuous supply of community purified drinking water. At the same time, notify the management personnel to replace the above-mentioned set of water purifiers 5 that have stopped working, and the professional cleaning company will clean them off-line, and after passing the test, they will be ready for use.

Claims (4)

1. one-way pipeline film purifying device for drinking water, water pump (1) connect with water purifier (5) by water distributing pipe (2), it is characterized in that: described water purifier (5) enter the mouth with export between be connected with differential pressure pickup (6) by piezometric tube (4); The motorized valve (3) of on the water distributing pipe (2) of the entrance and exit of this water purifier (5), connecting respectively; The signal output part of described differential pressure pickup (6) is connected with the input terminus of a controller (7), the output terminal of this controller (7) is connected with this motorized valve (3), and controller (7) is according to the working order of the monitoring water purifier of the pressure reduction between water purifier (5) two ends (5).

2. one-way pipeline film purifying device for drinking water according to claim 1, it is characterized in that: described water purifier (5) is the one-way pipeline film cleaner, comprise cylindrical outer casing (51), water-dispensing cover (52), catchment covers (53) and pipe filtering film component (54), the pipe filtering film component (54) that a plurality of parallel interval are provided with is housed in cylindrical outer casing (51), the water-dispensing cover (52) and the catchment covers (53) of taper are housed respectively at the two ends of this cylindrical outer casing (51), blind plate (521) in this water-dispensing cover (52) is with the end sealing of each pipe filtering film component (54), interconnect between this blind plate (521) or between each pipe filtering film component (54) fixingly with fixing reinforcing bar (522), the blind plate (531) in this catchment covers (53) seals each gap of managing between filtering film component (54) the other end; The top of this water-dispensing cover (52) and catchment covers (53) is respectively equipped with the inlet (55) and the outlet (56) of water purifier (5).

3. one-way pipeline film purifying device for drinking water according to claim 2, it is characterized in that: described pipe filtering film component (54) comprises film outer support (541), filtering membrane (542) and film inner support (543), piped has the film outer support (541) of mesh and film inner support (543) mutual sheathing together, and filtering membrane (542) is installed between the two.

4. one-way pipeline film purifying device for drinking water according to claim 1, it is characterized in that: two cover above-described water purifiers (5), motorized valve (3), controller (7) and differential pressure pickup (6) are arranged in parallel, purifying the back through a cover water purifier supplies water to the sub-district, when this water purifier two ends pressure reduction is big, differential pressure pickup outputs to controller with monitored signal, controller is opened another set of water purifier automatically, and close the electrically operated valve of current water purifier, guarantee the continuous supply of sub-district purifying drinking water.

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