Intercooling water bypass purification treatment system

Abstract

The utility model relates to the technical field of indirect air cooling water purification, in particular to an indirect cooling water bypass purification treatment system which comprises a main water pipe, a booster pump and a first ion exchanger, the second ion exchanger is arranged at the downstream of the first ion exchanger; the first ion exchanger and the second ion exchanger are respectively a cation exchanger and an anion exchanger; a first branch pipe, a second branch pipe, a first valve and a second valve are arranged on the main water pipe, and a third valve and a fourth valve are arranged on the first branch pipe and the second branch pipe respectively. According to the utility model, the cation exchanger, the anion exchanger and the plurality of valves are arranged, and the water treatment quantity of the cation exchanger and the anion exchanger can be controlled by controlling the opening degrees or switches of different valves, so that the conductivity and the pH value of intercooling water are adjusted, the adjustment of the quality of effluent water is realized, and the use requirements of different intercooling systems are met.

Description

Technical Field

[0001] The utility model relates to the technical field of indirect air-cooled water purification, and more specifically, to an indirect cooling water bypass purification treatment system. Background Art

[0002] An indirect air-cooled cooling tower is a device that uses air to indirectly cool water. Its working principle is to pass the water to be cooled through a heat exchanger, transfer the heat to the air through the heat exchanger, and the air takes away the heat through the cooling process. Specifically, water flows inside the heat exchanger, and the external air flows over the surface of the heat exchanger, and the water temperature is reduced through heat exchange. Unlike direct air-cooled cooling towers, the cooling water of indirect air-cooled cooling towers does not directly contact the outside air, thereby reducing the risk of water evaporation and pollution. In the cooling circulation system of thermal power generating units, surface indirect air cooling systems are widely used. As a key link in the surface indirect air cooling system, the indirect air cooling tower is used to cool down the temperature of the cooling water.

[0003] In order to avoid corrosion and damage to the indirect cooling water system or even leakage accidents, the circulating water must be purified before entering the cooling tower.

[0004] The prior art discloses a bypass treatment system for intercooling circulating water, including a bypass pipe connected to a circulating water inlet main pipe of an intercooling tower, the bypass pipe being connected to a folded filter cartridge filter and a cation exchanger in sequence, and the bypass pipe being connected to a water storage tank located underground in the intercooling tower after being connected to the folded filter cartridge filter and the cation exchanger in sequence. The prior art enables a portion of the circulating water to flow into the bypass pipe, and enables the circulating water flowing into the bypass pipe to be processed by the folded filter cartridge filter and the cation exchanger in sequence, not only to remove impurities in the circulating water, but also to enable the circulating water treated by the cation exchanger to reach an acidic level, and the treated portion of the circulating water can enter the water storage tank underground in the intercooling tower, so as to be mixed with the circulating water of the intercooling tower for use, thereby achieving the effect of reducing the pH value of the circulating water of the intercooling tower and reusing the circulating water.

[0005] However, the above-mentioned prior art only sets up a cation exchanger, and the circulating water generally also contains anions, toxic substances and invalid resins, etc. The above-mentioned treatment system cannot filter out anions, toxic substances and invalid resins, etc., so the purification effect of the prior art still needs to be improved. In addition, different intercooling towers have different requirements for the conductivity and pH value of purified water. The conductivity and pH value of the effluent obtained by the above-mentioned treatment system cannot be adjusted, and cannot meet the use requirements of different intercooling systems. Utility Model Content

[0006] In view of the problem that the prior art cannot adjust the conductivity and pH value of the discharged water and cannot meet the usage requirements of different indirect cooling systems, the present utility model provides an indirect cooling water bypass purification treatment system, which can adjust the conductivity and pH value of the discharged water and meet the usage requirements of different indirect cooling systems.

[0007] To solve the above technical problems, the technical solution provided by the present utility model is as follows:

[0008] An indirect cooling water bypass purification treatment system includes a main water pipe, a booster pump and a first ion exchanger sequentially arranged on the main water pipe; it further includes a second ion exchanger arranged downstream of the first ion exchanger, and the first ion exchanger and the second ion exchanger are respectively a cation exchanger and an anion exchanger or respectively an anion exchanger and a cation exchanger; a first branch pipe, a second branch pipe, a first valve and a second valve are arranged on the main water pipe, and a third valve and a fourth valve are respectively arranged on the first branch pipe and the second branch pipe; the inlet end and the outlet end of the first ion exchanger are respectively communicated with the first branch pipe and the main water pipe, and the ports of both are respectively located downstream of the third valve and the first valve; the inlet end and the outlet end of the second ion exchanger are respectively communicated with the second branch pipe and the main water pipe, and the ports of both are respectively located downstream of the second valve and the fourth valve.

[0009] It should be noted that both the cation exchanger and the anion exchanger are prior art, so the structures and working principles of the two will not be further described.

[0010] In the above technical solution, first open the third valve and the fourth valve, and close the first valve and the second valve; the unpurified water enters the main water pipe through the inlet end of the main water pipe and then enters the first branch pipe, passes through the third valve and then enters the first ion exchanger through the inlet end of the first ion exchanger, and the water treated by the first ion exchanger then flows into the main water pipe through its outlet end; the water then enters the second branch pipe, passes through the fourth valve and then enters the second ion exchanger through the inlet end of the second ion exchanger; the water treated by the second ion exchanger then flows to the main water pipe and finally flows to the indirect cooling tower through the outlet of the main water pipe.

[0011] When it is necessary to adjust the pH value and conductivity of the outlet water, the first valve can be opened and the opening degree of the first valve can be adjusted so that part of the unpurified water does not flow through the third valve but through the first valve, and the other part of the unpurified water flows through the third valve and then enters the first ion exchanger for treatment. Finally, the water flowing through the first valve and the water treated by the first ion exchanger converge on the main water pipe and continue to flow downstream, thereby adjusting the amount of water entering the first ion exchanger for treatment. At the same time, the second valve can also be opened and the opening degree of the second valve can be adjusted so that part of the water upstream does not flow through the fourth valve but through the second valve, and the other part of the water upstream flows through the fourth valve and then enters the second ion exchanger for treatment. Finally, the water flowing through the second valve and the water treated by the second ion exchanger converge on the main water pipe and then flow together to the outlet of the main water pipe. That is to say, by adjusting the opening degrees of the first valve and the second valve, the amounts of water treated by the first ion exchanger and the second ion exchanger can be adjusted respectively, so as to adjust the removal amounts of cations and anions in the water and realize the adjustment of the pH and conductivity of the outlet water.

[0012] Since after a period of filtration treatment, the ion exchange resin membranes of the first ion exchanger and the second ion exchanger will be attached with suspended substances, sediments and larger particles, which will cause an increase in the flow resistance and even blockage of the first ion exchanger and the second ion exchanger. Therefore, preferably, a fifth valve and a sixth valve are further provided on the main water pipe, and the fifth valve is located between the first valve and the second valve; a seventh valve and an eighth valve are respectively provided on the first branch pipe and the second branch pipe; the inlet end of the first ion exchanger is communicated between the third valve and the seventh valve, and the outlet end of the first ion exchanger is communicated between the first valve and the fifth valve; the inlet end of the second ion exchanger is communicated between the second valve and the sixth valve, and the outlet end of the second ion exchanger is communicated between the fourth valve and the eighth valve.

[0013] When it is necessary to clean the ion exchange resin membrane in the first ion exchanger, the first valve and the seventh valve can be opened, and the fifth valve and the third valve can be closed, so that water first passes through the first valve and then enters the first ion exchanger from the outlet end of the first ion exchanger to backwash the ion exchange resin membrane inside the first ion exchanger. Finally, the water comes out through the inlet end of the first ion exchanger, flows through the seventh valve, and then flows to the outside of the system through the first branch pipe. When it is necessary to clean the second ion exchanger, the first valve, the fifth valve, the second valve, and the eighth valve can be opened, and the third valve, the seventh valve, the sixth valve, and the fourth valve can be closed. Water first flows through the first valve and the fifth valve, and then flows through the second valve; water flowing through the second valve enters the second ion exchanger through the outlet end of the second ion exchanger, backwashes the ion exchange resin membrane inside the second ion exchanger, and finally water comes out through the water inlet end of the second ion exchanger, flows through the eighth valve, and then flows to the outside of the system through the second branch pipe. Of course, in the backwashing of the first ion exchanger and the second ion exchanger, the valve switching scheme is not limited to the above description. The backwashing of the first ion exchanger and the second ion exchanger can also be performed simultaneously, but it is necessary to adjust the opening and closing of different valves. By setting the fifth valve, the sixth valve, the seventh valve and the eighth valve, and adjusting the opening and closing of different valves, the backwashing of the first ion exchanger and the second ion exchanger can be achieved to prevent the clogging of the ion exchange resin membrane, thereby maintaining the treatment effect of the first ion exchanger and the second ion exchanger.

[0014] Preferably, a resin trap is further included, which is arranged on the main water pipe and is located downstream of the first ion exchanger and the second ion exchanger. Since the resin membranes of the first ion exchanger and the second ion exchanger will partially fail after long-term use, the failed resin particles will enter the water and affect the quality of the water. The resin trap can filter out the resin particles in the water, thereby improving the cleanliness of the outlet water.

[0015] Preferably, a pre-filter is provided on the main water pipe, and the pre-filter is located upstream of the first ion exchanger and the second ion exchanger. The pre-filter can first filter out impurities with larger volume in the water, thereby reducing the load of the first ion exchanger and the second ion exchanger, and reducing the damage of these impurities to the first ion exchanger and the second ion exchanger, which is conducive to improving the filtering effect, filtering efficiency and service life of the first ion exchanger and the second ion exchanger.

[0016] Preferably, a precision filter is provided on the main water pipe. The filtering precision of the precision filter is higher than that of the pre-filter. The precision filter is located downstream of the pre-filter and upstream of the first ion exchanger and the second ion exchanger. After the pre-filter removes larger particles and sediments, the precision filter further removes smaller impurities in the water, which is beneficial to improving the water quality and further enhancing the filtering effect, filtering efficiency and service life of the first ion exchanger and the second ion exchanger.

[0017] Preferably, at least two booster pumps are provided and are connected in parallel. After setting at least two booster pumps, one booster pump is used as the main pump, and the remaining booster pumps are used as standby pumps. When the main pump fails, the standby booster pumps can be activated to keep the system running normally.

[0018] Preferably, a container is further included. The first ion exchanger, the second ion exchanger, and the booster pumps are all located inside the container. The water inlet and outlet of the main water pipe are both exposed outside the container. After integrating the first ion exchanger, the second ion exchanger, and the booster pumps into the container, the entire system can be conveniently transported to different locations or project sites for installation. Moreover, the container can effectively protect the internal equipment from adverse weather, dust, moisture, and other external environmental factors, extending the service life of the equipment inside the container.

[0019] Preferably, a third branch pipe and a fourth branch pipe are provided on the main water pipe. Both the third branch pipe and the fourth branch pipe are located downstream of the first ion exchanger and the second ion exchanger. The outlet end of the third branch pipe is connected to a conductivity detector, and the outlet end of the fourth branch pipe is connected to a pH detector. Setting the conductivity detector and the pH detector can detect the conductivity and pH value of the outlet water in real time, facilitating the staff to adjust the opening degrees of different valves in a timely manner according to the conductivity and pH value of the outlet water, and ensuring that the conductivity and pH value of the outlet water meet the actual usage requirements.

[0020] Preferably, a first viewing part is provided on the outer shell of the first ion exchanger, and a second viewing part is provided on the outer shell of the second ion exchanger. Setting the first viewing part and the second viewing part can facilitate the staff to directly observe the internal operation status of the first ion exchanger and the second ion exchanger, and timely discover abnormalities or failures.

[0021] Preferably, a first exhaust port is provided at the top of the housing of the first ion exchanger, and a second exhaust port is provided at the top of the housing of the second ion exchanger. The first exhaust port and the second exhaust port can effectively release the gas or pressure generated in the first ion exchanger and the second ion exchanger respectively, preventing excessive pressure caused by gas accumulation, thereby protecting the safety of the equipment. Moreover, the first exhaust port and the second exhaust port respectively help to discharge the bubbles generated inside the first ion exchanger and the second ion exchanger, maintaining the efficiency and stability of ion exchange.

[0022] The beneficial effects of the present utility model: A cation exchanger and an anion exchanger are provided, and a plurality of valves are provided. By controlling the opening degree or switching of different valves, the water treatment amounts of the cation exchanger and the anion exchanger can be controlled, thereby adjusting the conductivity and pH value of the stored water, realizing the adjustment of the water quality of the effluent, and meeting the usage requirements of different indirect cooling systems; By controlling the switching of different valves, backwashing of the cation exchanger and the anion exchanger can be realized, preventing the blockage of the ion exchange resin membrane, thereby maintaining the treatment effects of the first ion exchanger and the second ion exchanger; A resin trap is provided to filter out the resin particles in the water, improving the cleanliness of the effluent. Brief Description of the Drawings

[0023] Figure 1 is a working flow chart of an indirect cooling water bypass purification treatment system;

[0024] Figure 2 is a front structural schematic diagram of an indirect cooling water bypass purification treatment system;

[0025] Figure 3 is a top view of an indirect cooling water bypass purification treatment system;

[0026] Figure 4 is a back structural schematic diagram of an indirect cooling water bypass purification treatment system;

[0027] Figure 5 is a front structural schematic diagram of the first ion exchanger;

[0028] Figure 6 is a side structural schematic diagram of the first ion exchanger.

[0029] In the accompanying drawings: 1 - main water pipe; 2 - booster pump; 3 - first ion exchanger; 301 - first exhaust port; 302 - first perspective part; 4 - second ion exchanger; 5 - first branch pipe; 6 - second branch pipe; 7 - first valve; 8 - second valve; 9 - third valve; 10 - fourth valve; 11 - fifth valve; 12 - sixth valve; 13 - seventh valve; 14 - eighth valve; 15 - resin trap; 16 - pre-filter; 17 - precision filter; 18 - container; 19 - third branch pipe; 20 - fourth branch pipe; 21 - conductivity detector; 22 - pH detector. Detailed implementation manners

[0030] The accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the accompanying drawings may be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. The positional relationships described in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent.

[0031] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0033] Embodiment 1

[0034] As Figures 1 to 6An intermediate cooling water bypass purification treatment system shown in the figure includes a main water pipe 1, a booster pump 2 and a first ion exchanger 3 sequentially arranged on the main water pipe 1; it also includes a second ion exchanger 4 arranged downstream of the first ion exchanger 3. The first ion exchanger 3 and the second ion exchanger 4 are a cation exchanger and an anion exchanger respectively; a first branch pipe 5, a second branch pipe 6, a first valve 7 and a second valve 8 are arranged on the main water pipe 1. A third valve 9 and a fourth valve 10 are respectively arranged on the first branch pipe 5 and the second branch pipe 6; the water inlet end and the water outlet end of the first ion exchanger 3 are respectively located at the top and the bottom of the first ion exchanger 3, and the water inlet end and the water outlet end of the first ion exchanger 3 are respectively communicated with the first branch pipe 5 and the main water pipe 1, and their ports are respectively located downstream of the third valve 9 and the first valve 7; the water inlet end and the water outlet end of the second ion exchanger 4 are respectively located at the top and the bottom of the second ion exchanger 4, and the water inlet end and the water outlet end of the second ion exchanger 4 are respectively communicated with the second branch pipe 6 and the main water pipe 1, and their ports are respectively located downstream of the second valve 8 and the fourth valve 10.

[0035] Further, the water outlet end of the first branch pipe 5 is communicated with the second branch pipe 6, so that the water in the first branch pipe 5 and the second branch pipe 6 can flow out together.

[0036] Further, the external structure of the second ion exchanger 4 is the same as that of the first ion exchanger 3. Refer to Figure 5 and Figure 6 , a first perspective part 302 is arranged on the outer shell of the first ion exchanger 3, and a second perspective part is arranged on the outer shell of the second ion exchanger 4. The arrangement of the first perspective part 302 and the second perspective part can facilitate the staff to directly observe the internal operation status of the first ion exchanger 3 and the second ion exchanger 4, and timely discover abnormalities or failures.

[0037] Further, a first exhaust port 301 is arranged at the top of the outer shell of the first ion exchanger 3, and a second exhaust port is arranged at the top of the outer shell of the second ion exchanger 4. The arrangement of the first exhaust port 301 and the second exhaust port can respectively effectively release the gas or pressure generated in the first ion exchanger 3 and the second ion exchanger 4, prevent the pressure from being too high caused by gas accumulation, and thus protect the equipment safety. Moreover, the first exhaust port 301 and the second exhaust port respectively help to discharge the bubbles generated inside the first ion exchanger 3 and the second ion exchanger 4, and maintain the efficiency and stability of ion exchange.

[0038] Working principle or process of this embodiment: During implementation, first open the third valve 9 and the fourth valve 10, and close the first valve 7 and the second valve 8. The unpurified water enters the main water pipe 1 through the inlet end of the main water pipe 1 and then enters the first branch pipe 5. After passing through the third valve 9, it enters the first ion exchanger 3 through the inlet end at the top of the first ion exchanger 3. The water treated by the first ion exchanger 3 then flows out of the first ion exchanger 3 through the outlet end at the bottom and into the main water pipe 1. The water then flows from the main water pipe 1 into the second branch pipe 6, passes through the fourth valve 10, and then enters the second ion exchanger 4 through the inlet end at the top of the second ion exchanger 4. The water treated by the second ion exchanger 4 then flows to the main water pipe 1 and finally flows to the indirect cooling tower through the outlet of the main water pipe 1.

[0039] When it is necessary to adjust the pH value and conductivity of the effluent, the first valve 7 can be opened and the opening degree of the first valve 7 can be adjusted so that part of the unpurified water does not flow through the third valve 9 but through the first valve 7, and the other part of the unpurified water flows through the third valve 9 and then enters the first ion exchanger 3 for treatment. Finally, the water flowing through the first valve 7 and the water treated by the first ion exchanger 3 converge on the main water pipe 1 and continue to flow downstream, thereby adjusting the amount of water treated in the first ion exchanger 3. At the same time, the second valve 8 can also be opened and the opening degree of the second valve 8 can be adjusted so that part of the upstream water does not flow through the fourth valve 10 but through the second valve 8, and the other part of the upstream water flows through the fourth valve 10 and then enters the second ion exchanger 4 for treatment. Finally, the water flowing through the second valve 8 and the water treated by the second ion exchanger 4 converge on the main water pipe 1 and then flow together to the outlet of the main water pipe 1. That is to say, by adjusting the opening degrees of the first valve 7 and the second valve 8, the amounts of water treated by the first ion exchanger 3 and the second ion exchanger 4 can be adjusted respectively, so as to adjust the removal amounts of cations and anions in the water and realize the adjustment of the pH and conductivity of the effluent.

[0040] Advantages of this embodiment: A cation exchanger and an anion exchanger are provided, and multiple valves are provided. By controlling the opening degrees or switches of different valves, the amounts of water treated by the cation exchanger and the anion exchanger can be controlled, thereby adjusting the conductivity and pH value of the stored water and realizing the adjustment of the effluent water quality to meet the usage requirements of different indirect cooling systems.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, as Figure 2 and Figure 3As shown in the figure, a fifth valve 11 and a sixth valve 12 are also provided on the main water pipe 1. The fifth valve 11 is located between the first valve 7 and the second valve 8. A seventh valve 13 and an eighth valve 14 are respectively provided on the first branch pipe 5 and the second branch pipe 6. The water inlet end of the first ion exchanger 3 is connected between the third valve 9 and the seventh valve 13, and the water outlet end of the first ion exchanger 3 is connected between the first valve 7 and the fifth valve 11. The water inlet end of the second ion exchanger 4 is connected between the second valve 8 and the sixth valve 12, and the water outlet end of the second ion exchanger 4 is connected between the fourth valve 10 and the eighth valve 14. After a period of filtration treatment, the ion exchange resin membranes of the first ion exchanger 3 and the second ion exchanger 4 will be attached with suspended matter, sediment and larger particles, which will cause an increase in the flow resistance and even blockage of the first ion exchanger 3 and the second ion exchanger 4.

[0043] When it is necessary to clean the ion exchange resin membrane in the first ion exchanger 3, the first valve 7 and the seventh valve 13 can be opened, and the fifth valve 11 and the third valve 9 can be closed, so that water first passes through the first valve 7 and then enters the first ion exchanger 3 from the outlet end of the first ion exchanger 3 to backwash the ion exchange resin membrane inside the first ion exchanger 3. Finally, the water comes out from the inlet end of the first ion exchanger 3, flows through the seventh valve 13 and then flows out of the system through the first branch pipe 5. When it is necessary to clean the second ion exchanger 4, the first valve 7, the fifth valve 11, the second valve 8 and the eighth valve 14 can be opened, and the third valve 9, the seventh valve 13, the sixth valve 12 and the fourth valve 10 can be closed. The water first flows through the first valve 7 and the fifth valve 11, and then flows through the second valve 8. The water flowing through the second valve 8 enters the second ion exchanger 4 from the outlet end of the second ion exchanger 4 to backwash the ion exchange resin membrane inside the second ion exchanger 4. Finally, the water comes out from the inlet end of the second ion exchanger 4, flows through the eighth valve 14 and then flows out of the system through the second branch pipe 6. Of course, in the backwashing of the first ion exchanger 3 and the second ion exchanger 4, the switching scheme of the valves is not limited to the above description. The backwashing of the first ion exchanger 3 and the second ion exchanger 4 can also be carried out synchronously, but only the opening and closing of different valves need to be adjusted again. By setting the fifth valve 11, the sixth valve 12, the seventh valve 13 and the eighth valve 14 and adjusting the opening and closing of different valves, the backwashing of the first ion exchanger 3 and the second ion exchanger 4 can be realized, the blockage of the ion exchange resin membrane can be prevented, and thus the treatment effect of the first ion exchanger 3 and the second ion exchanger 4 can be maintained.

[0044] Furthermore, there are two booster pumps 2 which are connected in parallel with each other. After setting two booster pumps 2, one booster pump 2 is used as the normal pump, and the other booster pump 2 is used as the standby pump. When the normal pump fails, the standby booster pump 2 can be enabled to keep the system running normally.

[0045] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1.

[0046] Example 3

[0047] This embodiment is based on the embodiment 2. Figures 1 to 4 As shown ( Figure 1 The arrow in the middle points to the direction of water flow), and the system also includes a resin trap 15, which is arranged on the main water pipe 1 and is located downstream of the first ion exchanger 3 and the second ion exchanger 4. Since the resin membranes of the first ion exchanger 3 and the second ion exchanger 4 will partially fail after long-term use, the failed resin particles will enter the water and affect the quality of the water. The resin trap 15 can filter out the resin particles in the water, thereby improving the cleanliness of the outlet water.

[0048] Furthermore, a pre-filter 16 is provided on the main water pipe 1, and the pre-filter 16 is located upstream of the first ion exchanger 3 and the second ion exchanger 4. The pre-filter 16 can first filter out the impurities with a larger volume in the water, thereby reducing the load of the first ion exchanger 3 and the second ion exchanger 4, and reducing the damage of these impurities to the first ion exchanger 3 and the second ion exchanger 4, which is beneficial to improving the filtering effect, filtering efficiency and service life of the first ion exchanger 3 and the second ion exchanger 4.

[0049] Furthermore, a precision filter 17 is provided on the main water pipe 1. The precision filter 17 has a higher filtering accuracy than the pre-filter 16. The precision filter 17 is located downstream of the pre-filter 16 and upstream of the first ion exchanger 3 and the second ion exchanger 4. After the pre-filter 16 removes larger particles and sediments, the precision filter 17 removes smaller impurities in the water, which is beneficial to improving the quality of the effluent water and further improving the filtering effect, filtering efficiency and service life of the first ion exchanger 3 and the second ion exchanger 4.

[0050] Furthermore, the main water pipe 1 is provided with a third branch pipe 19 and a fourth branch pipe 20, both of which are located downstream of the first ion exchanger 3 and the second ion exchanger 4, and the outlet end of the third branch pipe 19 is connected to a conductivity detector 21, and the outlet end of the fourth branch pipe 20 is connected to a pH detector 22. The conductivity detector 21 and the pH detector 22 can detect the conductivity and pH value of the outlet water in real time, so that the staff can adjust the opening of different valves in time according to the conductivity and pH value of the outlet water, and ensure that the conductivity and pH value of the outlet water meet the actual use requirements.

[0051] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 2.

[0052] Example 4

[0053] On the basis of Embodiment 3, as Figures 2 to 4 shown, it further includes a container 18. A manual door (not shown in the figure) is provided on the side of the container 18. Opening the manual door facilitates the staff to enter the interior of the container 18. The booster pump 2, the pre-filter 16, the precision filter 17, the first ion exchanger 3, the second ion exchanger 4, the resin trap 15, the conductivity detector 21 and the pH detector 22 are all located inside the container 18. The water inlet, the water outlet of the main water pipe 1 and the water outlet of the second branch pipe 6 are all exposed outside the container 18. Setting all the devices in the system inside the container 18 can conveniently transport the entire system to different locations or project sites for installation. Moreover, the container 18 can also effectively protect the internal devices from adverse weather, dust, moisture and other external environmental factors, and extend the service life of the devices inside the container 18.

[0054] Other features, working principles and beneficial effects of this embodiment are the same as those of Embodiment 3.

[0055] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. An indirect cooling water bypass purification treatment system, comprising a main water pipe (1), a booster pump (2) and a first ion exchanger (3) sequentially arranged on the main water pipe (1); characterized in that: The invention also comprises a second ion exchanger (4) arranged downstream of the first ion exchanger (3); the first ion exchanger (3) and the second ion exchanger (4) are respectively a cation exchanger and anion exchanger or respectively anion exchanger and cation exchanger; the main water pipe (1) is provided with a first branch pipe (5), a second branch pipe (6), a first valve (7) and a second valve (8); the first branch pipe (5) and the second branch pipe (6) are respectively provided with a third valve (9) and a fourth valve (10); the water inlet and the water outlet of the first ion exchanger (3) are respectively connected to the first branch pipe (5) and the main water pipe (1), and the ports of the two are respectively located downstream of the third valve (9) and the first valve (7); the water inlet and the water outlet of the second ion exchanger (4) are respectively connected to the second branch pipe (6) and the main water pipe (1), and the ports of the two are respectively located downstream of the second valve (8) and the fourth valve (10).

2. The indirect cooling water bypass purification treatment system according to claim 1, characterized in that: The main water pipe (1) is also provided with a fifth valve (11) and a sixth valve (12), the fifth valve (11) being located between the first valve (7) and the second valve (8); the first branch pipe (5) and the second branch pipe (6) are respectively provided with a seventh valve (13) and an eighth valve (14); the water inlet end of the first ion exchanger (3) is connected to between the third valve (9) and the seventh valve (13), and the water outlet end of the first ion exchanger (3) is connected to between the first valve (7) and the fifth valve (11); the water inlet end of the second ion exchanger (4) is connected to between the second valve (8) and the sixth valve (12), and the water outlet end of the second ion exchanger (4) is connected to between the fourth valve (10) and the eighth valve (14).

3. The indirect cooling water bypass purification treatment system according to claim 1, characterized in that: It also includes a resin trap (15), which is arranged in the main water pipe (1) and located downstream of the first ion exchanger (3) and the second ion exchanger (4).

4. The indirect cooling water bypass purification system according to claim 1, characterized in that: The main water pipe (1) is provided with a pre-filter (16), and the pre-filter (16) is located upstream of the first ion exchanger (3) and the second ion exchanger (4).

5. The indirect cooling water bypass purification system according to claim 4, characterized in that: The main water pipe (1) is provided with a precision filter (17), the filtering accuracy of the precision filter (17) being higher than that of the pre-filter (16), and the precision filter (17) being located downstream of the pre-filter (16) and upstream of the first ion exchanger (3) and the second ion exchanger (4).

6. The indirect cooling water bypass purification system according to claim 1, characterized in that: The booster pumps (2) are provided with at least two and are connected in parallel with each other.

7. The indirect cooling water bypass purification system according to claim 1, characterized in that: It also comprises a container (18), wherein the container (18) is provided with a manual door, the first ion exchanger (3), the second ion exchanger (4), and the booster pump (2) are all located in the container (18), and the water inlet and the water outlet of the main water pipe (1) are both exposed to the outside of the container (18).

8. The indirect cooling water bypass purification system according to claim 1, characterized in that: The main water pipe (1) is provided with a third branch pipe (19) and a fourth branch pipe (20), the third branch pipe (19) and the fourth branch pipe (20) are both located downstream of the first ion exchanger (3) and the second ion exchanger (4), the outlet end of the third branch pipe (19) is connected to a conductivity detector (21), and the outlet end of the fourth branch pipe (20) is connected to a pH detector (22).

9. An indirect cooling water bypass purification system according to any one of claims 1 to 8, characterized in that: A first perspective portion (302) is provided on the outer shell of the first ion exchanger (3), and a second perspective portion is provided on the outer shell of the second ion exchanger (4).

10. The indirect cooling water bypass purification system according to claim 9, characterized in that: A first exhaust port (301) is provided at the top of the housing of the first ion exchanger (3), and a second exhaust port is provided at the top of the housing of the second ion exchanger (4).

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