Water quality treatment system for oil cooler

Abstract

The utility model provides a water quality treatment system for an oil cooler. Comprising an oil cooler, a water inlet filter, a water inlet pipeline, a water quality adjusting device and a water tank, the oil cooler comprises a water inlet, and the water inlet filter is installed on the water inlet and connected with the water inlet pipeline; the water quality adjusting device comprises an adjusting water tank, a stirring device and an adjusting substance feeding device, the two ends of the adjusting water tank are connected with the water inlet pipeline and the water tank respectively, the stirring device is installed above the adjusting water tank, and the adjusting substance feeding device is installed on the side wall of the adjusting water tank. When the circulating cooling water flows out of the water tank, the pH value of the circulating cooling water is adjusted through the water quality adjusting device; the circulating cooling water subjected to pH value adjustment is conveyed to the water inlet of the oil cooler through the water inlet pipeline, and impurities, particles and the like in the circulating cooling water are filtered through the water inlet filter installed on the water inlet, so that the oil cooler is effectively prevented from being corroded, the service life of the oil cooler is prolonged, and the replacement cost of the oil cooler is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil coolers, in particular to a water quality treatment system for oil coolers. Background Art

[0002] In a waste incineration power plant, after being processed, the waste enters the combustion furnace and is burned by high-pressure air, generating high-temperature and high-pressure heat energy. The heat energy is transported to the waste heat boiler through a pipeline, and the high-temperature heat energy generated by the combustion is transferred to the water in the boiler. The water is heated by the heat energy and becomes high-temperature and high-pressure steam. The steam turbine rotates under the action of high-temperature and high-pressure steam, driving the generator to rotate, thereby generating electrical energy. The generator generates alternating current through rising and falling electromagnetic induction, and after the voltage is increased by the transformer, it is sent to the power grid for power supply. Therefore, in a waste incineration power plant, the steam turbine is the core equipment for converting steam energy into electrical energy. The oil cooler is a turbine oil cooling device used in conjunction with the steam turbine in the power system. It uses circulating water as a medium to achieve heat exchange, thereby ensuring that the bearing inlet oil temperature reaches the specified value and ensuring the normal operation of the steam turbine unit.

[0003] When the oil cooler is performing heat exchange, cooling water flows from the water chamber into the tube, oil enters the shell and flows outside the tube bundle, and the turbine oil flowing outside the tube and the circulating cooling water flowing inside the tube exchange heat through the tube wall, thereby achieving the purpose of cooling the lubricating oil with water. However, since the circulating cooling water generally contains various impurities and acid particles, it is easy to cause corrosion of the oil cooler; and acid is generally added to the circulating cooling water to adjust the pH value of the circulating cooling water. If too much acid is added, it is easy to cause corrosion and perforation of the heat exchange tube of the oil cooler, thereby reducing the service life of the oil cooler, increasing the replacement cost of the oil cooler, and affecting the normal operation of the steam turbine. Summary of the invention

[0004] In view of this, the utility model provides a water quality treatment system for an oil cooler to solve the technical problems that the existing oil cooler is easily corroded, has a short service life and a high replacement cost.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A water quality treatment system for an oil cooler comprises an oil cooler, a water inlet filter, a water inlet pipe, a water quality regulating device and a water tank, wherein the oil cooler comprises a water inlet, the water inlet filter is mounted on the water inlet and connected to the water inlet pipe, and is used to filter the circulating cooling water in the water inlet pipe; the water quality regulating device comprises a regulating water tank, a stirring device and a regulating material delivery device, the two ends of the regulating water tank are respectively connected to the water inlet pipe and the water tank, the stirring device is mounted above the regulating water tank, the regulating material delivery device is mounted on the side wall of the regulating water tank, and the water quality regulating device is used to regulate the pH value of the circulating cooling water entering the water inlet pipe.

[0007] Preferably, the regulating substance delivery device includes a regulating substance storage box and a lifting mechanism, the lifting mechanism includes a motor, a bearing platform, a gear box, a lifting rod and a connecting mechanism, the bearing platform is connected to the side wall of the regulating water tank, the motor is connected to the gear box, and the motor and the gear box are arranged on the bearing platform, the lifting rod passes through the gear box and the bearing platform to drive the lifting rod to move up and down through the gear box; the bottom of the lifting rod is connected to the regulating substance storage box through a connecting mechanism to drive the regulating substance storage box to move up and down through the lifting rod.

[0008] Preferably, the regulating material storage box includes a box body and a baffle, the baffle is arranged below the bottom of the box body, and a hole is opened at the bottom of the box body; the baffle includes a folding plate, a guide rail, a driving mechanism, and a slider, the guide rail is installed at the bottom of the box body, the driving mechanism is installed on one side of the folding plate and connected to the bottom of the box body, the slider is connected to the folding plate, and the slider is arranged in the guide rail to move along the guide rail and drive the folding plate to move.

[0009] Preferably, the water treatment system for the oil cooler further comprises a water tank outlet filter, the water tank comprises a water outlet, the water tank outlet filter is mounted on the water outlet and is used for filtering the circulating cooling water in the water tank.

[0010] Preferably, the water quality treatment system for the oil cooler further comprises a water quality detection device, which is disposed between the water quality regulating device and the water tank outlet filter and is used to detect the pH value of the circulating cooling water.

[0011] Preferably, the water quality treatment system for the oil cooler also includes a control module, which is electrically connected to the water quality regulating device and the water quality detection device, respectively, and the control module is used to drive the water quality regulating device to release water quality regulating substances according to the detection results of the water quality detection device.

[0012] Preferably, the water quality treatment system for the oil cooler further comprises an auxiliary water inlet pipe, one end of the auxiliary water inlet pipe is connected to the water quality detection device, and the other end of the auxiliary water inlet pipe is connected to the water inlet of the oil cooler.

[0013] Preferably, the water quality treatment system for the oil cooler also includes a first movable baffle and a second movable baffle, the first movable baffle is arranged between the water quality regulating device and the water quality detection device, and the second movable baffle is arranged between the water quality detection device and the auxiliary water inlet pipe, and the first movable baffle and the second movable baffle are electrically connected to the control module respectively.

[0014] Preferably, the water quality detection device is a pH sensor.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting a water inlet filter and a water quality regulating device, wherein the water inlet filter is installed on the water inlet of the oil cooler and connected to the water inlet pipe; the water quality regulating device includes a regulating water tank, a stirring device and a regulating material delivery device, the two ends of the regulating water tank are respectively connected to the water inlet pipe and the water tank, the stirring device is installed above the regulating water tank, and the regulating material delivery device is installed on the side wall of the regulating water tank. When the circulating cooling water comes out of the water tank, the pH value of the circulating cooling water is first adjusted by the water quality regulating device, thereby effectively preventing the circulating cooling water from being corroded by the heat exchange tube of the oil cooler due to excessive acid addition; the circulating cooling water after pH adjustment is transported to the water inlet of the oil cooler through the water inlet pipe, and then the impurities and particles in the circulating cooling water are filtered by the water inlet filter installed on the water inlet, so as to prevent the oil cooler from being corroded; the water quality treatment system for the oil cooler of the utility model can effectively slow down the speed of the oil cooler being corroded, thereby extending the service life of the oil cooler, reducing the replacement cost of the oil cooler, and ensuring the normal operation of the steam turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a water treatment system for an oil cooler.

[0018] Figure 2 is the cross section of the water inlet filter.

[0019] Figure 3 It is a structural schematic diagram of the water quality regulating device.

[0020] Figure 4 It is a schematic diagram of the structure of the device for regulating the material delivery.

[0021] Figure 5 A schematic diagram of the structure for adjusting the bottom of the material storage box.

[0022] Figure 6 This is another structural schematic diagram of the water treatment system for an oil cooler of the utility model.

[0023] Figure 7 The utility model is a top view of the water treatment system for the oil cooler.

[0024] In the figure: a water quality treatment system 10 for an oil cooler, an oil cooler 100, a water inlet 110, a water inlet filter 200, a water inlet pipe 300, a water quality regulating device 400, a regulating water tank 410, a stirring device 420, a regulating material delivery device 430, a regulating material storage box 431, a lifting mechanism 432, a motor 4321, a carrying platform 4322, a gear box 4323, a lifting rod 4324, a connecting mechanism 4325, a box body 4311, a folding plate 4312, a guide rail 4313, a driving mechanism 4314, a water tank 500, a water outlet 510, a water tank outlet filter 600, a water quality detection device 700, a control module 800, an auxiliary water inlet pipe 900, a first movable baffle 710, and a second movable baffle 720. DETAILED DESCRIPTION

[0025] The technical scheme and technical effects of the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0026] Please also see Figures 1 to 3 A water quality treatment system 10 for an oil cooler includes an oil cooler 100, a water inlet filter 200, a water inlet pipe 300, a water quality regulating device 400 and a water tank 500. The oil cooler 100 includes a water inlet 110. The water inlet filter 200 is installed on the water inlet 110 and connected to the water inlet pipe 300. The water inlet filter 200 is used to filter the circulating cooling water in the water inlet pipe 300; the water quality regulating device 400 includes a regulating water tank 410, a stirring device 420 and a regulating material delivery device 430. Both ends of the regulating water tank 410 are respectively connected to the water inlet pipe 300 and the water tank 500. The stirring device 420 is installed above the regulating water tank 410. The regulating material delivery device 430 is installed on the side wall of the regulating water tank 410. The water quality regulating device 400 is used to adjust the pH value of the circulating cooling water entering the water inlet pipe. Among them, since acid is generally added to the circulating cooling water to adjust its pH value, if excessive acid is added, it is easy to cause corrosion of the oil cooler heat exchange tube. Therefore, the water quality regulating device 400 mainly releases alkaline substances to regulate the circulating cooling water, and increases the pH value of the circulating cooling water through acid-base neutralization to prevent the circulating cooling water from being too acidic, thereby making the oil cooler less susceptible to corrosion.

[0027] A water inlet filter 200 and a water quality regulating device 400 are provided, wherein the water inlet filter 200 is installed on the water inlet 110 of the oil cooler 100 and connected to the water inlet pipe 300; both ends of the regulating water tank 410 are respectively connected to the water inlet pipe 300 and the water tank 500, the stirring device 420 is installed above the regulating water tank 410, and the regulating material feeding device 430 is installed on the side wall of the regulating water tank 410. When the circulating cooling water comes out of the water tank 500, the circulating cooling water is transported from the water tank 500 to the regulating water tank 410, the regulating substance delivery device 430 delivers the regulating substance into the regulating water tank 410, and the stirring device 420 is started to stir, so that the regulating substance fully reacts with the circulating cooling water in the regulating water tank 410, thereby regulating the circulating cooling water, reducing the acidity of the circulating cooling water, preventing the circulating cooling water from corroding the oil cooler heat exchange tube, and effectively preventing the circulating cooling water from corroding the oil cooler heat exchange tube due to excessive acid addition; the circulating cooling water after the pH adjustment is transported to the water inlet 110 of the oil cooler 100 through the water inlet pipe 300, and then the impurities and particles in the circulating cooling water are filtered through the water inlet filter 200 installed on the water inlet 110 to prevent the oil cooler from being corroded; the water quality treatment system for the oil cooler of the utility model can effectively slow down the speed of the oil cooler being corroded, thereby extending the service life of the oil cooler, reducing the replacement cost of the oil cooler, and ensuring the normal operation of the steam turbine.

[0028] For further information, see Figure 4 The regulating material delivery device 430 includes a regulating material storage box 431 and a lifting mechanism 432. The lifting mechanism 432 includes a motor 4321, a carrying platform 4322, a gear box 4323, a lifting rod 4324 and a connecting mechanism 4325. The carrying platform 4322 is connected to the side wall of the regulating water tank 410. The motor 4321 is connected to the gear box 4323, and the motor 4321 and the gear box 4323 are arranged on the carrying platform 4322. The lifting rod 4324 passes through the gear box 4323 and the carrying platform 4322 to drive the lifting rod 4324 to move up and down through the gear box 4323; the bottom of the lifting rod 4324 is connected to the regulating material storage box 431 through the connecting mechanism 4325 to drive the regulating material storage box 431 to move up and down through the lifting rod 4324.

[0029] Among them, for different forms of regulating substances, the utility model designs the regulating substance delivery device in the form of lifting to adapt to the water levels of different heights in the regulating water tank, so that the regulating substance and the circulating cooling water can fully react. When the regulating substance is solid, for example, the regulating substance is lime, the motor can be started, and the motor drives the gear box to rotate, and the gear box rotates to drive the lifting rod to descend, and at the same time drives the regulating substance storage box to descend, so that the regulating substance storage box is close to the circulating cooling water, so that the regulating substance can fully contact with the circulating cooling water; when the regulating substance is liquid, for example, the regulating substance is sodium hydroxide solution, because the liquid can be well fused when in contact with water, the motor can be not started, and the liquid regulating substance can be directly delivered into the regulating water tank.

[0030] For further information, see Figure 5 The regulating material storage box 431 includes a box body 4311 and a baffle, the baffle is arranged below the bottom of the box body 4311, and a hole is opened at the bottom of the box body 4311; the baffle includes a folding plate 4312, a guide rail 4313, a driving mechanism 4314, and a slider, the guide rail 4313 is installed at the bottom of the box body 431, the driving mechanism 4314 is installed on one side of the folding plate 4312 and connected to the bottom of the box body 431, the slider is connected to the folding plate 4312, and the slider is arranged in the guide rail 4313 to move along the guide rail 4313 and drive the folding plate 4312 to move. Specifically, Figure 5 The middle folding plate 4312 is partially folded. In the initial state, the folding plate 4312 is fully unfolded. When the circulating cooling water enters the regulating water tank, if the regulating substance is liquid, the driving mechanism 4314 can drive the slider to move right along the guide rail 4313. Since the slider is connected to the folding plate 4312, the slider will drive the folding plate 4312 to move right during the movement. The folding plate 4312 will fold up during the movement, and the holes at the bottom of the regulating substance storage box will be exposed. The liquid regulating substance flows from the holes to the circulating cooling water, so that the liquid regulating substance is easy to disperse and can be quickly mixed with water, thereby improving the water quality regulation speed of the circulating cooling water. If the regulating substance is solid, the regulating substance storage box is first lowered to a suitable position, and then the folding plate is folded up to leak out of the hole, so that the solid regulating substance can contact with the circulating cooling water for reaction.

[0031] For further information, see Figure 6The water quality treatment system for the oil cooler also includes a water tank outlet filter 600. The water tank 500 includes a water outlet 510. The water tank outlet filter 600 is installed on the water outlet 510 and is used to filter the circulating cooling water in the water tank 500. Therefore, when the water tank 500 transports the circulating cooling water from the water outlet 510 to the oil cooler, the impurities and acid particles in the circulating cooling water can be first filtered through the water tank outlet filter 600. When the circulating cooling water after the first step of filtration enters the water quality regulating device 400, the impurities and acid particles are filtered out, so that the circulating cooling water can fully react with the water quality regulating device 400, thereby improving the regulating effect of the circulating cooling water. Finally, the circulating cooling water is further filtered through the water inlet filter 200, so that the impurities in the circulating cooling water are fully filtered, effectively preventing the oil cooler from being corroded.

[0032] For further information, see Figure 6 The water quality treatment system 10 for the oil cooler also includes a water quality detection device 700. The water quality detection device 700 is arranged between the water quality adjustment device 400 and the water tank outlet filter 600, and is used to detect the pH value of the circulating cooling water. Since the pH value of the circulating cooling water is unknown, if the circulating cooling water is not over-acidified, it is directly adjusted through the water quality adjustment device 400, which may affect the pH value of the circulating cooling water and further affect the use of the oil cooler. Therefore, the utility model sets a water quality detection device 700 between the water quality adjustment device 400 and the water tank outlet filter 600, detects the pH value of the circulating cooling water through the water quality detection device 700, and then determines whether to adjust the water quality of the circulating cooling water based on the detection result, thereby improving the accuracy of the water quality treatment of the circulating cooling water.

[0033] Furthermore, the water quality treatment system 10 for the oil cooler also includes a control module 800, which is electrically connected to the water quality regulating device 400 and the water quality detection device 700, respectively. The control module 800 is used to drive the water quality regulating device 400 to release water quality regulating substances according to the detection results of the water quality detection device 700. Specifically, the water quality detection device 700 detects the acidity and alkalinity of the circulating cooling water, and sends the detection result to the control module 800. The control module 800 determines whether to send a start signal to the water quality regulating device 400 according to the detection result. When the detection result shows that the acidity of the circulating cooling water is strong, the control module 800 can send a start signal to the water quality regulating device 400 to drive the water quality regulating device 400 to release a water quality regulating substance, wherein the water quality regulating substance is an alkaline substance, and the acidity of the circulating cooling water is weakened by acid-base neutralization; when the detection result shows that the acidity of the circulating cooling water is weak or neutral, the control module 800 may not send a signal to the water quality regulating device 400, and at this time, when the circulating cooling water passes through the water quality regulating device 400, the water quality regulating device does not release the water quality regulating substance. The control module 800 can realize the automation of water quality detection and water quality regulation of the circulating cooling water, thereby improving the efficiency of water quality treatment of the circulating cooling water.

[0034] For further information, see Figure 7 The water quality treatment system 10 for the oil cooler also includes an auxiliary water inlet pipe 900, one end of the auxiliary water inlet pipe 900 is connected to the water quality detection device 700, and the other end of the auxiliary water inlet pipe 900 is connected to the water inlet 110 of the oil cooler 100, so that the circulating cooling water can be directly transported to the oil cooler from the auxiliary water inlet pipe without passing through the water quality adjustment device 400.

[0035] Further, please refer again to Figure 7 The water quality treatment system 10 for the oil cooler further includes a first movable baffle 710 and a second movable baffle 720. The first movable baffle 710 is disposed between the water quality regulating device 400 and the water quality detection device 700, and the second movable baffle 720 is disposed between the water quality detection device 700 and the auxiliary water inlet pipe 900. The first movable baffle 710 and the second movable baffle 720 are electrically connected to the control module 800, respectively. The first movable baffle 710 can move in the vertical direction, and the second movable baffle 720 can move in the horizontal direction. The initial positions of the first movable baffle 710 and the second movable baffle 720 are as shown in FIG. Figure 4 As shown, the circulating cooling water can be blocked from flowing toward the water quality regulating device 400 or toward the auxiliary water inlet pipe.

[0036] Specifically, the water quality detection device 700 detects the pH value of the circulating cooling water. When the detection result shows that the acidity of the circulating cooling water is relatively strong, the control module 800 can drive the first movable baffle 710 to move upward or downward to open the passage to the water quality regulating device 400, so that the circulating cooling water flows to the water quality regulating device 400. At the same time, the control module 800 sends a start signal to the water quality regulating device 400 to drive the water quality regulating device 400 to release the water quality regulating substance; when the detection result shows that the acidity of the circulating cooling water is relatively weak or neutral, the control module 800 can drive the second movable baffle 720 to move left or right to open the passage to the auxiliary water inlet pipe 900, so that the circulating cooling water flows directly to the water inlet of the oil cooler through the auxiliary water inlet pipe. After all the circulating cooling water passes through the first movable baffle or the second movable baffle, the first movable baffle or the second movable baffle returns to the initial position. Therefore, different channels are used to transport circulating cooling water with different pH values, so that circulating cooling water that does not require water quality adjustment can be directly transported to the oil cooler through the auxiliary water inlet pipe, thereby improving its transportation efficiency.

[0037] Furthermore, the water quality detection device 700 is a pH sensor.

[0038] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A water treatment system for an oil cooler, characterized in that: It includes an oil cooler, a water inlet filter, a water inlet pipe, a water quality regulating device and a water tank. The oil cooler includes a water inlet. The water inlet filter is installed on the water inlet and connected to the water inlet pipe for filtering the circulating cooling water in the water inlet pipe. The water quality regulating device includes a regulating water tank, a stirring device and a regulating material delivery device. The two ends of the regulating water tank are respectively connected to the water inlet pipe and the water tank. The stirring device is installed above the regulating water tank. The regulating material delivery device is installed on the side wall of the regulating water tank. The water quality regulating device is used to adjust the pH value of the circulating cooling water entering the water inlet pipe.

2. The water treatment system for oil cooler according to claim 1, characterized in that: The regulating substance delivery device includes a regulating substance storage box and a lifting mechanism, the lifting mechanism includes a motor, a bearing platform, a gear box, a lifting rod and a connecting mechanism, the bearing platform is connected to the side wall of the regulating water tank, the motor is connected to the gear box, and the motor and the gear box are arranged on the bearing platform, the lifting rod passes through the gear box and the bearing platform to drive the lifting rod to move up and down through the gear box; the bottom of the lifting rod is connected to the regulating substance storage box through a connecting mechanism to drive the regulating substance storage box to move up and down through the lifting rod.

3. The water treatment system for oil cooler according to claim 2, characterized in that: The regulating material storage box includes a box body and a baffle, wherein the baffle is arranged below the bottom of the box body, and a hole is opened at the bottom of the box body; the baffle includes a folding plate, a guide rail, a driving mechanism, and a slider, wherein the guide rail is installed at the bottom of the box body, the driving mechanism is installed on one side of the folding plate and connected to the bottom of the box body, the slider is connected to the folding plate, and the slider is arranged in the guide rail to move along the guide rail and drive the folding plate to move.

4. The water treatment system for oil cooler according to claim 1, characterized in that: The water treatment system for the oil cooler also includes a water tank outlet filter. The water tank includes a water outlet. The water tank outlet filter is installed on the water outlet and is used to filter the circulating cooling water in the water tank.

5. The water treatment system for oil cooler according to claim 4, characterized in that: The water quality treatment system for the oil cooler also includes a water quality detection device, which is arranged between the water quality adjustment device and the water tank outlet filter and is used to detect the pH value of the circulating cooling water.

6. The water treatment system for oil cooler according to claim 5, characterized in that: The water quality treatment system for the oil cooler also includes a control module, which is electrically connected to the water quality regulating device and the water quality detection device respectively, and is used to drive the water quality regulating device to release water quality regulating substances according to the detection results of the water quality detection device.

7. The water treatment system for oil cooler according to claim 6, characterized in that: The water quality treatment system for the oil cooler also includes an auxiliary water inlet pipe, one end of which is connected to the water quality detection device, and the other end of which is connected to the water inlet of the oil cooler.

8. The water treatment system for oil cooler according to claim 7, characterized in that: The water quality treatment system for the oil cooler also includes a first movable baffle and a second movable baffle, the first movable baffle is arranged between the water quality regulating device and the water quality detection device, and the second movable baffle is arranged between the water quality detection device and the auxiliary water inlet pipe, and the first movable baffle and the second movable baffle are electrically connected to the control module respectively.

9. The water treatment system for an oil cooler according to any one of claims 5 to 8, characterized in that: The water quality detection device is a pH value sensor.

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