A full-membrane water treatment raw water preheating system method

Abstract

The application discloses a kind of whole membrane method water treatment raw water preheating system method, comprising the following steps: step one: detecting the effluent temperature of raw water pretreatment system;Step two: the effluent of raw water pretreatment system is communicated with water jet tank system and forms loop, and the effluent temperature of water jet tank system is detected;Step three: whether the effluent temperature of raw water pretreatment system meets the next step processing standard is detected, if not, by adjusting the frequency of water pump of water jet tank system, the effluent temperature of raw water pretreatment system is adjusted to be high or low until meeting standard;Step four: whether the effluent temperature of water jet tank system meets water jet tank use standard is detected, if not, by adjusting water temperature through self-circulation cooling system.The application is helpful to solve the problem that whole membrane method water treatment process will heat raw water through high-temperature steam after raw water pretreatment system, with low safety factor and high cost.

Description

Technical Field

[0001] This invention relates to the field of all-membrane water treatment technology, and more specifically to a method for a raw water preheating system for all-membrane water treatment. Background Technology

[0002] The all-membrane water treatment process organically combines different membrane technologies such as ultrafiltration, microfiltration, reverse osmosis, and EDI to achieve efficient removal of pollutants and deep desalination. Generally, ultrafiltration and microfiltration membrane technologies are used as raw water pretreatment systems, reverse osmosis membrane technologies are called reverse osmosis systems, and EDI membrane technologies are called EDI systems. When using the all-membrane water treatment process, the raw water is usually heated with high-temperature steam after the raw water pretreatment system, which has a low safety factor and high cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for a preheating system for raw water in a full membrane water treatment process that has a high safety factor and reduces heat reduction costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a method for a full-membrane water treatment raw water preheating system, comprising the following steps:

[0005] Step 1: Detect the effluent temperature of the raw water pretreatment system;

[0006] Step 2: Connect the water jet tank system to the outlet of the raw water pretreatment system to form a loop, and detect the outlet water temperature of the water jet tank system;

[0007] Step 3: Check whether the outlet water temperature of the raw water pretreatment system meets the standards for the next step. If it does not meet the standards, adjust the frequency of the water pump in the water jet tank system to increase or decrease the outlet water temperature of the raw water pretreatment system until it meets the standards.

[0008] Step 4: Check whether the outlet water temperature of the water jet tank system meets the usage standards of the water jet tank. If it does not meet the standards, adjust the water temperature through its own circulating cooling system.

[0009] Furthermore, the specific steps in step three are as follows:

[0010] If the effluent temperature of the raw water pretreatment system is between 30-35℃, the effluent will enter the subsequent reverse osmosis system and EDI system.

[0011] If the effluent temperature of the raw water pretreatment system is below 30℃, increase the frequency of the water pump in the water jet tank system until the effluent temperature of the raw water pretreatment system is between 30-35℃.

[0012] If the outlet water temperature of the raw water pretreatment system is higher than 35℃, reduce the frequency of the water pump in the water jet tank system until the outlet water temperature of the raw water pretreatment system is between 30-35℃.

[0013] Furthermore, the specific steps in step four are as follows:

[0014] If the outlet water temperature of the water jet tank system is higher than 60℃, increase the valve opening of the circulating cooling system until the outlet water temperature of the water jet tank system is lower than 60℃.

[0015] If the inlet water temperature of the water jet tank system is below 25°C, close the valve opening of the circulating cooling system.

[0016] Furthermore, the temperature detection in both steps one and two is achieved using temperature sensors.

[0017] Furthermore, the circulating cooling system in step four includes at least a cooling tank, a spray head disposed in the cooling tank, a water inlet pipe communicating with the spray head, a water outlet pipe communicating with the cooling tank, and an air intake mechanism communicating with the cooling tank.

[0018] Furthermore, the air intake mechanism includes an air intake pipe and a first filter plate, a second filter plate, a blower, and a condenser pipe arranged sequentially in the air intake pipe along the air intake direction.

[0019] Furthermore, the air intake mechanism also includes a blower, two scrapers and two baffles, and the two scrapers slide in cooperation with the air intake pipe and can respectively scrape the first filter plate and the second filter plate.

[0020] The air inlet pipe is also provided with a baffle along its length, and the baffle is located near the air outlet end of the air inlet pipe. The suction fan and the blower are respectively arranged on both sides of the baffle. The two baffles are respectively rotatably arranged on both sides of the baffle. The baffles of the two second filter plates can be rotated to seal the space where the blower is located while connecting the air inlet pipe to the cooling tank, or to connect the space where the blower is located to the space of the suction fan while disconnecting the air inlet pipe from the cooling tank.

[0021] Furthermore, the hair dryer includes a motor and a fan connected to the output shaft of the motor. The air intake pipe also rotatably houses two first connecting rods, two second connecting rods, two third connecting rods, and two threaded rods. The two first connecting rods are respectively engaged with the output shaft of the motor via helical gears. The two second connecting rods are also respectively engaged with the two first connecting rods via helical gears. The two third connecting rods are respectively engaged with the two second connecting rods via helical gears. The two threaded rods are also respectively engaged with the two third connecting rods via helical gears. The two scrapers are respectively threadedly connected to the two threaded rods.

[0022] Furthermore, the scraper includes at least two partition plates located on both sides of the first filter plate or the second filter plate, and the air inlet pipe is provided with a dust collection chamber at the corresponding positions of the first filter plate and the second filter plate. The air inlet pipe has an inlet on its wall that connects the air inlet pipe to the dust collection chamber, and each inlet is rotatably provided with a sealing plate.

[0023] Furthermore, the intake pipe is rotatably equipped with two fourth links, two fifth links, and two sixth links. The two fourth links are respectively engaged with the two first links through helical gears, the two fifth links are respectively engaged with the two fourth links through helical gears, and the two sixth links are respectively engaged with the two fifth links through helical gears. The two sealing plates are respectively disposed on the two sixth links.

[0024] The beneficial effects of this invention are reflected in:

[0025] The present invention relates to a preheating system for raw water in a full-membrane water treatment system. By connecting the full-membrane water treatment system with the water jet tank system of a steam turbine generator set, the water temperature in the water jet tank can be adjusted by detecting the outlet water temperature of the water jet tank system, so that the water temperature in the water jet tank is maintained at the standard for use, which helps to establish the vacuum of the steam turbine generator set. On the other hand, the warm water in the water jet tank is used to heat the raw water of the full-membrane water treatment system instead of high-temperature steam, which is both safe and economical. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the process flow of the raw water preheating system for all-membrane water treatment according to the present invention;

[0027] Figure 2 This is a front view of the self-circulating cooling system structure of the present invention;

[0028] Figure 3 This is a front sectional view of a portion of the self-circulating cooling system of the present invention;

[0029] Figure 4 This is a side sectional view of the intake mechanism structure in the cooling state of the present invention;

[0030] Figure 5 This is a side sectional view of the air intake mechanism of the present invention when it is not in a cooling state;

[0031] Figure 6 This is a schematic diagram of the scraper and sealing plate driving structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the scraper drive structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the sealing plate driving structure of the present invention.

[0034] The components in the attached diagram are labeled as follows: 1. Cooling tank; 2. Spray head; 3. Water inlet pipe; 4. Water outlet pipe; 5. Air intake mechanism; 501. Air intake pipe; 5011. Dust collection chamber; 5012. Inlet; 502. First filter plate; 503. Second filter plate; 504. Fan; 505. Condenser pipe; 506. Blower; 5061. Motor; 5062. Fan; 507. Scraper; 5071. Divider plate; 508. Baffle plate; 6. Partition plate; 7. First connecting rod; 8. Second connecting rod; 9. Threaded rod; 10. Sealing plate; 11. Third connecting rod; 12. Fourth connecting rod; 13. Fifth connecting rod; 14. Sixth connecting rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] See Figure 1-8 .

[0037] The present invention relates to a method for a raw water preheating system for all-membrane water treatment, comprising the following steps:

[0038] Step 1: Detect the effluent temperature of the raw water pretreatment system;

[0039] Step 2: Connect the water jet tank system to the outlet of the raw water pretreatment system to form a loop, and detect the outlet water temperature of the water jet tank system;

[0040] Step 3: Check whether the outlet water temperature of the raw water pretreatment system meets the standards for the next step. If it does not meet the standards, adjust the frequency of the water pump in the water jet tank system to increase or decrease the outlet water temperature of the raw water pretreatment system until it meets the standards.

[0041] Step 4: Check whether the outlet water temperature of the water jet tank system meets the usage standards of the water jet tank. If it does not meet the standards, adjust the water temperature through its own circulating cooling system.

[0042] The present invention relates to a preheating system for raw water in a full-membrane water treatment system. By connecting the full-membrane water treatment system with the water jet tank system of a steam turbine generator set, the water temperature in the water jet tank can be adjusted by detecting the outlet water temperature of the water jet tank system, so that the water temperature in the water jet tank is maintained at the standard for use, which helps to establish the vacuum of the steam turbine generator set. On the other hand, the warm water in the water jet tank is used to heat the raw water of the full-membrane water treatment system instead of high-temperature steam, which is both safe and economical.

[0043] It should be noted that the water jet tank system of a typical steam turbine generator set generally includes a water pump, a water jet tank, and its own circulating cooling system. Under normal circumstances, the temperature of the water jet tank will continuously rise, requiring cooling water to cool it down in order to ensure the normal operation of the steam turbine generator set.

[0044] In one embodiment, step three specifically involves the following steps:

[0045] If the effluent temperature of the raw water pretreatment system is between 30-35℃, the effluent will enter the subsequent reverse osmosis system and EDI system.

[0046] If the effluent temperature of the raw water pretreatment system is below 30℃, increase the frequency of the water pump in the water jet tank system until the effluent temperature of the raw water pretreatment system is between 30-35℃.

[0047] If the outlet water temperature of the raw water pretreatment system is higher than 35℃, reduce the frequency of the water pump in the jet tank system until the outlet water temperature is between 30-35℃. This design, through frequency conversion of the water pump in the jet tank, achieves water temperature regulation after the raw water pretreatment system is completed.

[0048] In one embodiment, step four specifically involves the following steps:

[0049] If the outlet water temperature of the water jet tank system is higher than 60℃, increase the valve opening of the circulating cooling system until the outlet water temperature of the water jet tank system is lower than 60℃.

[0050] If the inlet water temperature of the water jet tank system is detected to be below 25℃, the valve opening of the circulating cooling system will be closed. This design achieves water temperature regulation of the water jet tank.

[0051] In one embodiment, temperature detection in both step one and step two is achieved using a temperature sensor.

[0052] In one embodiment, see Figure 2 and Figure 3The circulating cooling system in step four includes at least a cooling tank 1, a spray head 2 installed inside the cooling tank 1, a water inlet pipe 3 connected to the spray head 2, a water outlet pipe 4 connected to the cooling tank 1, and an air intake mechanism 5 connected to the cooling tank 1. This design allows water from the water injection tank to be drawn to the spray head 2 via the water inlet pipe 3, and then sprayed onto the cooling tank 1 via the spray head 2. During the spraying process, air is introduced through the air intake mechanism 5 and blown towards the sprayed water. The water is cooled by the air and eventually flows back into the water injection tank through the water outlet pipe 4. In this embodiment, the cooling tank 1 is also connected to an air duct that cooperates with the air intake mechanism 5.

[0053] In one embodiment, see Figure 4 The air intake mechanism 5 includes an air intake pipe 501 and a first filter plate 502, a second filter plate 503, a suction fan 504, and a condenser pipe 505 arranged sequentially along the air intake direction within the air intake pipe 501. This design allows the suction fan 504 to draw outside air into the cooling tank 1. During intake, the air first passes through the first filter plate 502 and the second filter plate 503 to filter dust, preventing dust from mixing into the cooling tank 1 and adhering to the tank and pipe walls. The filtered air is then cooled by the condenser pipe 505, enhancing the cooling effect on the water. In this embodiment, the first filter plate 502 and the second filter plate 503 can be inclined to increase the filtration area. The condenser pipe 505 contains condensate, which is circulated by a pump.

[0054] In one embodiment, see Figure 4 and Figure 5 The air intake mechanism 5 also includes a blower 506, two scrapers 507 and two baffles 508, and the two scrapers 507 are slidably engaged with the air intake pipe 501 and can respectively scrape the first filter plate 502 and the second filter plate 503.

[0055] A partition 6 is also provided inside the air inlet pipe 501 along its own length direction, and the partition 6 is located near the air outlet end of the air inlet pipe 501. The suction fan 504 and the blower 506 are respectively arranged on both sides of the partition 6. The two baffles 508 are respectively rotatably arranged on both sides of the partition 6. The baffles 508 of the two second filter plates 503 can be rotated to seal the space where the blower 506 is located while connecting the air inlet pipe 501 to the cooling tank 1, or to connect the space where the blower 506 is located to the space of the suction fan 504 while disconnecting the air inlet pipe 501 from the cooling tank 1. With this design, when the air intake mechanism 5 is in cooling operation, the two baffles 508 seal the space where the blower 506 is located, and at this time the air intake pipe 501 is connected to the cooling tank 1, and the suction fan 504 is running to achieve the cooling effect. After the cooling operation is not performed, the two baffles 508 connect the space where the blower 506 is located to the space of the suction fan 504, and disconnect the air intake pipe 501 from the cooling tank 1. The blower 506 is started and the scraper 507 is driven to slide. The scraper 507 scrapes against the first filter plate 502 and the second filter plate 503 to remove the dust filtered on the first filter plate 502 and the second filter plate 503. Then the blower 506 blows the removed dust out of the outside of the air intake pipe 501.

[0056] In one embodiment, see Figure 5-7 The blower 506 includes a motor 5061 and a fan 5062 connected to the output shaft of the motor 5061. The air inlet pipe 501 is also rotatably equipped with two first connecting rods 7, two second connecting rods 8, two third connecting rods 9, and two threaded rods 11. The two first connecting rods 7 are respectively engaged with the output shaft of the motor 5061 through helical gears. The two second connecting rods 8 are also respectively engaged with the two first connecting rods 7 through helical gears. The two third connecting rods 9 are respectively engaged with the two second connecting rods 8 through helical gears. The two threaded rods 11 are also respectively engaged with the two third connecting rods 9 through helical gears. The two scrapers 507 are respectively threadedly connected to the two threaded rods 11. This design allows the hair dryer 506 to rotate when the motor 5061 rotates, which in turn drives the first connecting rod 7 to rotate, the first connecting rod 7 to rotate the second connecting rod 8, the second connecting rod 8 to rotate the third connecting rod 9, and the third connecting rod 9 to rotate the two threaded rods 11. This achieves the sliding effect of the scraper 507. In this embodiment, the two threaded rods 11 are located at the top of the air inlet pipe 501, and the threads of the threaded rods 11 are symmetrical. The first connecting rod 7, the second connecting rod 8, and the third connecting rod 9 all serve as transmission rods to carry out the transmission effect.

[0057] In one embodiment, see Figure 5The scraper 507 includes at least two partition plates 5071 located on both sides of the first filter plate 502 or the second filter plate 503, respectively. The air inlet pipe 501 has dust collection chambers 5011 at positions corresponding to the first filter plate 502 and the second filter plate 503. The wall of the air inlet pipe 501 has inlets 5012 connecting the air inlet pipe 501 to the dust collection chambers 5011, and each inlet 5012 is rotatably fitted with a sealing plate 10. This design allows the partition plates 5071 to scrape both sides of the first filter plate 502 and the second filter plate 503, resulting in excellent cleaning. After cleaning, some dust can be blown out of the air inlet pipe 501 through the first filter plate 502 and the second filter plate 503, while the remaining dust falls into the dust collection chambers 5011 and is blown out.

[0058] In one embodiment, see Figure 5 and Figure 8 The intake pipe 501 also rotatably houses two fourth connecting rods 12, two fifth connecting rods 13, and two sixth connecting rods 14. The two fourth connecting rods 12 mesh with the two first connecting rods 7 via helical gears, the two fifth connecting rods 13 mesh with the two fourth connecting rods 12 via helical gears, and the two sixth connecting rods 14 mesh with the two fifth connecting rods 13 via helical gears. The two sealing plates 10 are respectively mounted on the two sixth connecting rods 14. This design allows the sealing plates 10 and scraper 507 to move simultaneously via the same motor 5061. In this embodiment, the fourth connecting rods 12, 13, and 14 all serve as transmission rods for receiving the transmission effect.

[0059] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0060] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0061] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A method for a raw water preheating system for all-membrane water treatment, characterized in that, Includes the following steps: Step 1: Detect the effluent temperature of the raw water pretreatment system; Step 2: Connect the water jet tank system to the outlet of the raw water pretreatment system to form a loop, and detect the outlet water temperature of the water jet tank system; Step 3: Check whether the outlet water temperature of the raw water pretreatment system meets the standards for the next step. If it does not meet the standards, adjust the frequency of the water pump in the water jet tank system to increase or decrease the outlet water temperature of the raw water pretreatment system until it meets the standards. Step 4: Check whether the outlet water temperature of the water jet tank system meets the usage standards of the water jet tank. If it does not meet the standards, adjust the water temperature through its own circulating cooling system. The circulating cooling system in step four includes at least a cooling tank (1), a spray head (2) installed in the cooling tank (1), a water inlet pipe (3) connected to the spray head (2), a water outlet pipe (4) connected to the cooling tank (1), and an air intake mechanism (5) connected to the cooling tank (1). The air intake mechanism (5) includes an air intake pipe (501) and a first filter plate (502), a second filter plate (503), a blower (504), and a condenser pipe (505) arranged sequentially in the air intake pipe (501) along the air intake direction; The air intake mechanism (5) also includes a blower (506), two scrapers (507) and two baffles (508), and the two scrapers (507) are slidably engaged with the air intake pipe (501) and can respectively scrape the first filter plate (502) and the second filter plate (503); The air inlet pipe (501) is also provided with a partition (6) along its own length direction, and the partition (6) is located near the air outlet end of the air inlet pipe (501). The suction fan (504) and the blower (506) are respectively arranged on both sides of the partition (6). The two baffles (508) are respectively rotatably arranged on both sides of the partition (6). The baffles (508) of the two second filter plates (503) can be rotated to seal the space where the blower (506) is located while connecting the air inlet pipe (501) to the cooling tank (1), or connect the space where the blower (506) is located to the space where the suction fan (504) is located while disconnecting the air inlet pipe (501) from the cooling tank (1).

2. The method for preheating raw water in a full-membrane water treatment system according to claim 1, characterized in that, The specific steps for step three are as follows: If the effluent temperature of the raw water pretreatment system is between 30-35℃, the effluent will enter the subsequent reverse osmosis system and EDI system. If the effluent temperature of the raw water pretreatment system is below 30℃, increase the frequency of the water pump in the water jet tank system until the effluent temperature of the raw water pretreatment system is between 30-35℃. If the outlet water temperature of the raw water pretreatment system is higher than 35℃, reduce the frequency of the water pump in the water jet tank system until the outlet water temperature of the raw water pretreatment system is between 30-35℃.

3. The method for preheating raw water in a full-membrane water treatment system according to claim 1, characterized in that, The specific steps for step four are as follows: If the outlet water temperature of the water jet tank system is higher than 60℃, increase the valve opening of the circulating cooling system until the outlet water temperature of the water jet tank system is lower than 60℃. If the inlet water temperature of the water jet tank system is below 25°C, close the valve opening of the circulating cooling system.

4. The method for preheating raw water in a full-membrane water treatment system according to claim 1, characterized in that, Temperature detection in both Step 1 and Step 2 is achieved using a temperature sensor.

5. The method for preheating raw water in a full-membrane water treatment system according to claim 1, characterized in that, The blower (506) includes a motor (5061) and a fan (5062) connected to the output shaft of the motor (5061). The air inlet pipe (501) is also rotatably equipped with two first connecting rods (7), two second connecting rods (8), two third connecting rods (9), and two threaded rods (11). The two first connecting rods (7) are respectively meshed with the output shaft of the motor (5061) through helical gears. The two second connecting rods (8) are also respectively meshed with the two first connecting rods (7) through helical gears. The two third connecting rods (9) are respectively meshed with the two second connecting rods (8) through helical gears. The two threaded rods (11) are also respectively meshed with the two third connecting rods (9) through helical gears. The two scrapers (507) are respectively threadedly connected to the two threaded rods (11).

6. The method for preheating raw water in a full-membrane water treatment system according to claim 5, characterized in that, The scraper (507) includes at least two partition plates (5071) located on both sides of the first filter plate (502) or the second filter plate (503). The air inlet pipe (501) is provided with a dust collection chamber (5011) at the corresponding positions of the first filter plate (502) and the second filter plate (503). The air inlet pipe (501) is provided with an inlet (5012) that connects the air inlet pipe (501) to the dust collection chamber (5011). Each inlet (5012) is rotatably provided with a sealing plate (10).

7. The method for preheating raw water in a full-membrane water treatment system according to claim 6, characterized in that, The intake pipe (501) is also rotatably equipped with two fourth connecting rods (12), two fifth connecting rods (13) and two sixth connecting rods (14). The two fourth connecting rods (12) are respectively meshed with the two first connecting rods (7) through helical gears. The two fifth connecting rods (13) are respectively meshed with the two fourth connecting rods (12) through helical gears. The two sixth connecting rods (14) are respectively meshed with the two fifth connecting rods (13) through helical gears. The two sealing plates (10) are respectively disposed on the two sixth connecting rods (14).

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