CN105481128A - Purified water preparation equipment - Google Patents

Abstract

The invention discloses a pure water manufacturing equipment, which comprises a raw water tank, a primary pressure pump, a quartz sand filter, an active carbon filter, a precision filter, a secondary pressure pump, a reverse osmosis device, and a clean water tank sequentially connected by pipelines And the three-stage pressure pump, the quartz sand filter is equipped with a storage basin, the conical surface around the storage basin is connected to the intake pipe, the reverse osmosis device is equipped with a fiber ceramic membrane, and a hollow support column is installed in the center of the fiber ceramic membrane. Two rows of holes distributed along its length, half of the holes are through holes through the support column, and the other half of the holes are grooves on the inner wall of the support column, two adjacent grooves, adjacent grooves The through hole and the adjacent two through holes are all connected by passages, the inner wall of the support column is fitted with a sealing seat, and the reverse osmosis device is equipped with a cylinder, and the cylinder can make the sealing seat fit the inner wall of the support column to move through the push rod. The pure water manufacturing equipment of the present invention is easy to use and has good purification ability.

Description

Pure water manufacturing equipment

technical field

The invention relates to the field of water treatment, in particular to a pure water manufacturing equipment.

Background technique

At present, common pure water manufacturing equipment includes raw water tanks, booster pumps, quartz sand filters, activated carbon filters, precision filters, reverse osmosis devices and clean water tanks, etc., which are arranged in sequence on the assembly line. After passing through the above-mentioned assembly lines in sequence, generally It can generate pure water that meets the requirements of the national drinking standards. However, the equipment needs to be backwashed after a period of use. The existing backwashing devices have many defects and are in urgent need of improvement.

Contents of the invention

The object of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a pure water manufacturing equipment, which is easy to use and has good purification ability.

In order to achieve the above object, the technical solution of the present invention is: pure water manufacturing equipment, including a raw water tank, a primary pressure pump, a quartz sand filter, an activated carbon filter, a precision filter, a secondary pressure pump, and a reverse Osmosis device, clean water tank and three-stage pressure pump, the interior of the quartz sand filter is provided with a tapered storage basin whose diameter gradually decreases from top to bottom. The conical surface of the first stage pressure pump is connected to the inlet pipe, and the outlet of the first-stage pressure pump is connected to the inlet of the quartz sand filter through the first water inlet pipe. The first solenoid valve is arranged on the first water inlet pipe, and the outlet of the quartz sand filter The inlet of the activated carbon filter is connected through the first water outlet pipe, the first water outlet pipe is provided with a third solenoid valve, the first water inlet pipe and the first water outlet pipe are communicated through the second water inlet pipe, and the second water inlet pipe is connected to the first water outlet pipe. The water inlet pipe is provided with a second electromagnetic valve, and the two ends of the second water inlet pipe are respectively located in front of the first electromagnetic valve and the third electromagnetic valve. The activated carbon filter is provided with an activated carbon layer and a sandstone layer distributed up and down. The reverse osmosis device is equipped with a fiber ceramic membrane, and the center of the fiber ceramic membrane is provided with a hollow support column with two ends open. The support column is provided with two rows of holes distributed along its length direction, and half of the holes are The through hole that runs through the support column, the other half of the hole is a groove on the inner wall of the support column, and the two adjacent grooves, the adjacent groove and the through hole, and the adjacent two through holes pass through The channel is connected, the inner wall of the support column is fitted with a sealing seat, and the reverse osmosis device is equipped with a cylinder, and the push rod at the end of the cylinder can make the sealing seat move close to the inner wall of the support column. The front and rear ends of the pressure pump are respectively provided with a low-pressure switch and a high-pressure switch. The outlet of the secondary pressure pump is connected to the inlet of the reverse osmosis device through a third water inlet pipe. The third water inlet pipe is provided with a sixth solenoid valve behind the high-pressure switch. The inside of the support column is connected to the fourth water inlet pipe on the same side as the sealing seat. The fourth water inlet pipe is provided with a fourth solenoid valve, and the other end of the fourth water inlet pipe is connected to the first valve between the high pressure switch and the sixth solenoid valve. On the third water inlet pipe, a return pipe is connected to the fourth water inlet pipe, one end of the return water pipe is connected to the fourth water inlet pipe behind the fourth solenoid valve, the other end of the return water pipe is connected to a precision filter, and the return water pipe is provided with a first Five solenoid valves.

The inlet of the raw water tank is provided with a raw water inlet pipe, and a raw water pressure loss protection device is provided on the raw water inlet pipe.

A first sewage discharge pipe is provided on the upper part of the quartz sand filter, and an eighth electromagnetic valve is provided on the first sewage discharge pipe.

The precision filter is provided with a dosing device.

The outlet of the precision filter is connected to the inlet of the secondary pressure pump through the second water outlet pipe, and a low pressure switch is provided on the second water outlet pipe.

The upper part of the reverse osmosis device is provided with a second sewage discharge pipe, and a seventh electromagnetic valve is provided on the second sewage discharge pipe.

The fiber ceramic membrane and one end of the supporting column are fastened through an end cap.

An ultraviolet lamp is arranged above the inside of the clean water tank.

The beneficial effects of the invention are: the quartz sand filter and the reverse osmosis device have good backwashing effect, reduce the waste of water source, and the quality of the obtained water is good.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the enlarged view of place A in Fig. 1;

Fig. 3 is an enlarged view of B in Fig. 1 .

In the figure: raw water tank 1, raw water inlet pipe 11, raw water pressure loss protection device 12, primary pressure pump 13, first solenoid valve 14, first water inlet pipe 15, first water outlet pipe 16, second water inlet pipe 17, quartz Sand filter 2, storage basin 21, outlet hole 22, air intake pipe 23, second solenoid valve 24, first sewage pipe 25, third solenoid valve 26, eighth solenoid valve 27, activated carbon filter 3, activated carbon layer 31, Sand layer 32, precision filter 4, dosing device 41, second water outlet pipe 42, third water inlet pipe 43, fourth water inlet pipe 44, secondary pressure pump 5, low pressure switch 51, high pressure switch 52, sixth electromagnetic Valve 53, second sewage pipe 54, seventh solenoid valve 55, fourth solenoid valve 56, fifth solenoid valve 57, return pipe 58, reverse osmosis device 6, fiber ceramic membrane 61, support column 62, end cover 63, through Holes 64, grooves 65, channels 66, sealing seats 67, cylinders 68, push rods 69, clean water tanks 7, ultraviolet lamps 71, and three-stage pressure pumps 8.

detailed description

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the pure water manufacturing equipment includes a raw water tank 1, a primary pressure pump 13, a quartz sand filter 2, an activated carbon filter 3, a precision filter 4, and a secondary pressure pump connected sequentially through pipelines. 5. Reverse osmosis device 6, clean water tank 7 and three-stage pressure pump 8. Inside the quartz sand filter 2, there is a tapered storage basin 21 whose diameter gradually decreases from top to bottom. The upper end of the storage basin 21 is open, and the The bottom of the basin 21 is provided with a plurality of water outlet holes 22, and the conical surface around the storage basin 21 is connected to the air intake pipe 23. The air inlet pipe 23 is connected to an external aeration device (not shown in the figure), and each air inlet pipe 23 enters the quartz sand filter 2 and is divided into three single ones distributed in the upper, middle, and lower parts, and is stored in the basin 21. Quartz sand is placed, and the quartz sand can remove the silt, rust, colloidal substances, suspended solids and other substances in the raw water that are harmful to the human body with particles above 20 μm, so as to ensure the quality of the produced water. The water passing through the quartz sand flows out from the outlet hole 22 and enters Activated carbon filter3. The outlet of the primary pressure pump 13 is connected to the inlet of the quartz sand filter 2 through the first water inlet pipe 15, and the first electromagnetic valve 14 is arranged on the first water inlet pipe 15, and the outlet of the quartz sand filter 2 passes through The first water outlet pipe 16 is connected to the inlet of the activated carbon filter 3, the first water outlet pipe 16 is provided with a third electromagnetic valve 26, and the second water inlet pipe 17 is passed between the first water inlet pipe 15 and the first water outlet pipe 16 The second water inlet pipe 17 is provided with a second solenoid valve 24, and the two ends of the second water inlet pipe 17 are respectively located in front of the first solenoid valve 14 and the third solenoid valve 26 (the front and rear in the present invention are specifically Refers to the direction of the water inlet and water outlet of a solenoid valve during normal water production), the upper part of the quartz sand filter 2 is provided with a first sewage pipe 25, and the first sewage pipe 25 is provided with an eighth solenoid valve 27. During normal operation, the first solenoid valve 14 and the third solenoid valve 26 are turned on, the second solenoid valve 24 and the eighth solenoid valve 27 are closed, and the water passes through the primary pressure pump 13, the quartz sand filter 2 and the activated carbon filter in sequence. 3 flow, when the quartz sand filter 2 needs to be backwashed, the first solenoid valve 14 and the third solenoid valve 26 are closed, the second solenoid valve 24 and the eighth solenoid valve 27 are turned on, and the water from the primary pressure pump 13 is The second water inlet pipe 17 enters the bottom of the quartz sand filter 2, and the external aeration device is opened simultaneously, and the gas in the air inlet pipe 23 blows up the quartz sand, and the periphery of the storage basin 21 is a conical surface, so that both sides of the symmetrical air inlet pipe 23 The blown quartz sand can collide with each other, knocking down impurities such as sediment and suspended solids on the quartz sand, and at the same time, these impurities are discharged from the first sewage pipe 25 into the external sewage through the high-pressure water entering from the outlet hole 22. Pool, the decontamination effect of the whole backwashing process is very ideal, convenient and reliable at the same time.

The activated carbon filter 3 is provided with an activated carbon layer 31 and a sandstone layer 32 distributed up and down. The activated carbon filter 3 can remove pigments, peculiar smells, biochemical organic matter in the water, reduce the residual ammonia value of the water and pesticide pollution and other harmful substances to the human body. The purpose of the sand layer 32 is to prevent the activated carbon particles from being washed out by water.

The reverse osmosis device 6 is equipped with a fiber ceramic membrane 61. Compared with the organic polymer membrane, the fiber ceramic membrane 61 has many unique advantages, such as high temperature resistance, chemical corrosion resistance, high mechanical strength, narrow uniform distribution of pore size, and microstructure Controllable, long service life, etc., so it can meet particularly demanding requirements, and has broad application prospects in petrochemical, chemical industry, metallurgical industry, food industry, environmental engineering, new energy and other fields. The inner center of the fiber ceramic membrane 61 is provided with a hollow support column 62 with openings at both ends, that is, the support column 62 is a hollow cylinder, and the support column 62 is provided with two symmetrical rows of holes distributed along its length direction. Half of the holes are through-holes 64 that run through the support column 62, and the other half of the holes are grooves 65 positioned on the inner wall of the support column 62. The through-hole 64 and the groove 65 are separated by the axial center of the support column 62. distributed. Two adjacent grooves 65, adjacent grooves 65 and through holes 64, and two adjacent through holes 64 are all communicated by channels 66, that is, the holes in each row communicate with each other, and the supporting columns 62 A sealing seat 67 is attached to the inner wall, and a cylinder 68 is provided outside the reverse osmosis device 6, and the push rod 69 at the end of the cylinder 68 can make the sealing seat 67 fit the inner wall of the support column 62 to move, and the secondary pressure pump The outlet of 5 is connected to the inlet of the reverse osmosis device 6 through the third water inlet pipe 43. The third water inlet pipe 43 is provided with a sixth solenoid valve 53 behind the high pressure switch 52. The inside of the support column 62 is on the same side as the sealing seat 67. The other end of the fourth water inlet pipe 44 is connected to the fourth water inlet pipe 44, and the fourth water inlet pipe 44 is provided with a fourth solenoid valve 56, and the other end of the fourth water inlet pipe 44 is connected to the third water inlet pipe 43 between the high pressure switch 52 and the sixth solenoid valve 53 Above, the fourth water inlet pipe 44 is connected with a water return pipe 58, one end of the water return pipe 58 is connected to the fourth water inlet pipe 44 behind the fourth electromagnetic valve 56, the other end of the water return pipe 58 is connected to the precision filter 4, and the return pipe 58 is provided with a fifth solenoid valve 57 . The upper part of the reverse osmosis device 6 is provided with a second sewage discharge pipe 54 , and a seventh solenoid valve 55 is provided on the second sewage discharge pipe 54 . During normal operation, the fourth solenoid valve 56, the seventh solenoid valve 55 and the fifth solenoid valve 57 are closed, the sixth solenoid valve 53 is turned on, and the water in the secondary pressure pump 5 enters the reverse osmosis device 6 from the third water inlet pipe 43 Because the diameter of water molecules is less than one nanometer, and the diameters of organic matter (pesticides), minerals, bacteria, etc. are basically between 100 and 1000 nanometers, water can pass through the fiber ceramic membrane 61, while organic matter (pesticides), minerals, etc. Substances, bacteria, etc. are blocked outside the fiber ceramic membrane 61 in the reverse osmosis device 6. After water passes through the fiber ceramic membrane 61, it flows into the inside of the support column 62 from the two rows of through holes 64 of the support column 62 and then enters the clean water tank 7. Therefore, the groove 65 is blocked by the sealing seat 67, and water cannot enter the support column 62 from the groove 65. When backwashing is required, the fourth electromagnetic valve 56 and the seventh electromagnetic valve 55 are connected, and the sixth electromagnetic valve 53 and the seventh electromagnetic valve are connected. The fifth solenoid valve 57 is closed, and the cylinder 68 moves to push the sealing seat 67 to the other end to block the through hole 64. At this time, the water from the secondary pressure pump 5 enters the inside of the support column 62 through the fourth water inlet pipe 44, and then Reversely pass through the fiber ceramic membrane 61 from the groove 65, the channel 66, and the through hole 64, and the organic matter (pesticide), mineral matter, bacteria, etc. attached to the outer wall of the fiber ceramic membrane 61 are washed away and discharged into the sewage through the second sewage pipe 54 pool, use the preliminary purified water through the quartz sand filter 2, activated carbon filter 3 and precision filter 4 to carry out backwashing, the impurity is less, the degree of pollution of the fiber ceramic membrane 61 is low, but still remains on the inner wall of the fiber ceramic membrane 61 A small amount of impurities that cannot pass through the fiber ceramic membrane 61 are removed. After flushing for a period of time, the seventh solenoid valve 55 and the fourth solenoid valve 56 are closed, and the sixth solenoid valve 53 and the fifth solenoid valve 57 are turned on. At this time, the water from the secondary pressure pump 5 enters from the outside of the fiber ceramic membrane 61. , enter the support column 62 through the through hole 64, channel 66, and groove 65, and then enter the precision filter 4 from the fourth water inlet pipe 44 and return water pipe 58, so that a small amount left in the backwashing process will adhere to the fiber ceramic membrane Impurities on the inner wall of 61 rush back into the precision filter 4, reducing the loss of preliminary purified water. After a period of time, the cylinder 68 moves to return the sealing seat 67 to its original position, and the fourth solenoid valve 56, the seventh solenoid valve 55 and the fifth solenoid valve 57 is closed, the sixth electromagnetic valve 53 is conducted, and the normal water production continues. Compared with the existing reverse osmosis device 6, which directly flushes impurities at the water inlet to discharge them, since the flushing water and impurities are on the same side, the flushing effect is not very good, and more preliminary purified water is used The flushing process can only be completed, resulting in a large amount of waste of preliminary purified water. The present invention adopts reverse backwashing, and the flushing effect is obviously better, and only a small amount of time can be used for flushing, which reduces the waste of preliminary purified water. It takes a shorter time to eliminate the impurities left by backwashing, and all the preliminary purified water in this process returns to the precision filter 4, which will not cause the loss of the preliminary purified water.

The front and rear ends of the secondary pressure pump 5 are respectively provided with a low pressure switch 51 and a high pressure switch 52, the outlet of the precision filter 4 is connected to the inlet of the secondary pressure pump 5 through the second outlet pipe 42, and the second outlet pipe 42 is provided with low voltage switch 51. The setting of the low pressure switch 51 makes it impossible to make water when the water pressure is low, and the equipment automatically stops working; the high pressure switch 52 can protect the fiber ceramic membrane 61 from being damaged due to excessive water pressure. Molecules can be squeezed through the fiber ceramic membrane 61 under sufficient pressure, and it can also ensure that the fiber ceramic membrane 61 will not be damaged due to excessive water pressure, and can be used for a long time.

The entrance of the raw water tank 1 is provided with a raw water inlet pipe 11, and the raw water inlet pipe 11 is provided with a raw water pressure loss protection device 12. When the water pressure is lower than a certain value, the equipment will automatically power off and stop working, avoiding the Due to the equipment damage and waste of accessories caused by the loss of raw water pressure, the water in the raw water inlet pipe 11 is transported to the quartz sand filter 2 through the primary pressure pump 13 .

The precision filter 4 is provided with a dosing device 41, and the precision filter 4 further purifies the water and optimizes the turbidity and chromaticity of the water. The dosing device 41 can prevent the surface of the fiber ceramic membrane 61 from being polluted by microbial oxidation and suspended impurities, prevent fouling on the membrane surface and reduce the desalination performance of the membrane, ensure the long-term stable operation of the reverse osmosis device 6 and improve the water flow rate of the membrane. quantity.

Both ends of the fiber ceramic membrane 61 and the support column 62 are open and flush. One end of the fiber ceramic membrane 61 and the support column 62 is fastened by the end cap 63 , and the other end abuts against the inner wall of the water outlet of the reverse osmosis device 6 .

The upper part of the clean water tank 7 is provided with an ultraviolet lamp 71, which can effectively kill bacteria and viruses in the water and further improve the quality of the water. The three-stage pressure pump 8 at the clean water tank 7 rear can ensure water outlet efficiency.

The whole equipment can be automatically controlled by PLC, and the raw water pressure loss protection device 12, all pressure pumps, all solenoid valves, air intake pipe 23, dosing device 41, low pressure switch 51, high pressure switch 52, cylinder 68 and ultraviolet lamp 71 are all connected To the PLC for overall scheduling.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (8)

1. Pure water manufacturing equipment, including raw water tank (1), primary pressure pump (13), quartz sand filter (2), activated carbon filter (3), precision filter (4), secondary stage pressure pump (5), reverse osmosis device (6), clean water tank (7) and three stage pressure pump (8), it is characterized in that: described quartz sand filter (2) is provided with from top to bottom caliber A tapered storage basin (21) that gradually shrinks. The bottom of the storage basin (21) is provided with a plurality of water outlet holes (22), and the conical surface around the storage basin (21) is connected to the air intake pipe (23). The outlet of the pressure pump (13) is connected to the inlet of the quartz sand filter (2) through the first water inlet pipe (15), the first water inlet pipe (15) is provided with a first electromagnetic valve (14), and the quartz sand The outlet of the filter (2) is connected to the inlet of the activated carbon filter (3) through the first outlet pipe (16), the first outlet pipe (16) is provided with a third electromagnetic valve (26), and the first inlet The water pipe (15) communicates with the first water outlet pipe (16) through a second water inlet pipe (17), and the second water inlet pipe (17) is provided with a second electromagnetic valve (24), and the second water inlet pipe (17) ) are respectively located in front of the first electromagnetic valve (14) and the third electromagnetic valve (26), and the activated carbon filter (3) is provided with an activated carbon layer (31) and a sandstone layer (32) distributed up and down. , the reverse osmosis device (6) is provided with a fiber ceramic membrane (61), and the inner center of the fiber ceramic membrane (61) is provided with a hollow support column (62) with openings at both ends, and on the support column (62) There are two rows of holes distributed along its length, half of the holes are through holes (64) passing through the support column (62), and the other half of the holes are grooves (65) on the inner wall of the support column (62) , the adjacent two grooves (65), the adjacent grooves (65) and the through holes (64), and the adjacent two through holes (64) are all communicated by passages (66), and the support The inner wall of the column (62) is fitted with a sealing seat (67), and the reverse osmosis device (6) is provided with a cylinder (68) outside, and the cylinder (68) can make the seal through the push rod (69) at its end The seat (67) fits the inner wall of the support column (62) to move, and the front and rear ends of the secondary pressure pump (5) are respectively provided with a low pressure switch (51) and a high pressure switch (52), and the outlet of the secondary pressure pump (5) Connect the inlet of reverse osmosis device (6) by the 3rd water inlet pipe (43), be positioned at the high pressure switch (52) rear and be provided with the 6th electromagnetic valve (53) on the described 3rd water inlet pipe (43), described support column ( 62) The interior is connected to the fourth water inlet pipe (44) on the same side as the sealing seat (67). The fourth water inlet pipe (44) is provided with a fourth electromagnetic valve (56), and the other end of the fourth water inlet pipe (44) Connected on the third water inlet pipe (43) between the high pressure switch (52) and the sixth electromagnetic valve (53), the fourth water inlet pipe (44) is connected with a return pipe (58), and the return pipe (58) One end is connected on the fourth water inlet pipe (44) behind the fourth electromagnetic valve (56), and returns to The other end of the water pipe (58) is connected to the precision filter (4), and the return pipe (58) is provided with a fifth electromagnetic valve (57). 2. The pure water manufacturing equipment according to claim 1, characterized in that: the inlet of the raw water tank (1) is provided with a raw water inlet pipe (11), and the raw water inlet pipe (11) is provided with a raw water pressure loss protection device (12). 3. The pure water manufacturing equipment as claimed in claim 1, characterized in that: the upper part of the quartz sand filter (2) is provided with a first sewage pipe (25), and the first sewage pipe (25) is provided with Eighth solenoid valve (27). 4. The pure water manufacturing equipment according to claim 1, characterized in that: the precision filter (4) is provided with a dosing device (41). 5. Pure water production equipment as claimed in claim 1, characterized in that: the outlet of the precision filter (4) is connected to the inlet of the secondary pressure pump (5) through the second outlet pipe (42), the second The outlet pipe (42) is provided with a low pressure switch (51). 6. The pure water manufacturing equipment according to claim 1, characterized in that: the reverse osmosis device (6) is provided with a second sewage pipe (54), and the second sewage pipe (54) is provided with a seventh sewage pipe (54). Solenoid valve (55). 7. The pure water manufacturing equipment according to claim 1, characterized in that: one end of the fiber ceramic membrane (61) and the support column (62) is fastened by an end cover (63). 8. The pure water manufacturing equipment according to claim 1, characterized in that: an ultraviolet lamp (71) is arranged above the inside of the clean water tank (7).