Cooling circulating water redundancy guarantee system and using method thereof

Abstract

The invention relates to the technical field of glass production, in particular to a cooling circulating water redundancy guarantee system and a using method thereof. The device comprises a water tank, a power source and a controller, an ultrapure water inlet of the water tank is connected with an ultrapure water source through an ultrapure water pipeline, a water outlet of the water tank is connected with a power source through a first circulating pipe section, and an ultrapure water switch valve is arranged on the ultrapure water pipeline; the power source comprises a first automatic pump, a second automatic pump, a standby electric pump and an oil pump which are arranged in parallel; the water outlet pipes of the pumps intersect and converge at the second circulating pipe section; a cooling pipeline is arranged in the heating equipment and is connected with the second circulating pipe section and a circulating water inlet of the water tank; a first liquid level switch is arranged at the tail end of the ultrapure water pipeline; and the first liquid level switch, the ultrapure water switch valve, the first automatic pump and the second automatic pump are all in signal connection with the controller. The technical problem that normal work of a cooling water system is affected due to insufficient water supply pressure or flow caused by faults of a water circulation device in the prior art is effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of glass production, and particularly relates to a cooling circulating water redundancy guarantee system and a use method thereof. BACKGROUND

[0002] In the initial stage of glass production, heating equipment such as a kiln, a platinum channel and a muffle is needed to provide a high-temperature production environment of up to 1600 DEG C for glass production. The high-temperature production environment provides necessary conditions for glass production, and at the same time, causes damage to the heating equipment itself. Therefore, the heating equipment needs to be cooled during normal operation.

[0003] At present, the circulating water cooling method is mainly used to cool the heating equipment. For example, a patent document with the application publication number CN116750947A discloses a glass kiln cooling water system and method, which comprises a water circulating device, and the water circulating device is communicated with a water inlet pipe and a water return pipe; an electrode brick is arranged on the kiln, the water inlet pipe is communicated with a water inlet of the electrode brick, and the water return pipe is communicated with a water outlet of the electrode brick; an instrument branch and a bypass branch are connected to the water return pipe, and the instrument branch and the bypass branch are communicated with the water circulating device. When the glass kiln cooling water system is started, the bypass branch is first opened, the instrument branch is closed, then the water inlet pipe is opened, the cooling water is circulated in the bypass branch to clean the sundries in the circulating pipeline, and after the circulating pipeline is unobstructed, the cooling water is gradually introduced into the instrument branch until the cooling water fills all the pipelines, so that the kiln and the electrode brick are completely cooled.

[0004] The above cooling water system can cool the kiln, but the following problems still exist in the use process: 1. impurities, scale or biological slime will accumulate in the cooling water during long-term use, which will cause the circulating pipeline to gradually narrow or even be blocked, the cooling water flow will decrease, and the cooling effect will be affected; 2. under high-temperature environment, calcium and magnesium ions in the cooling water will be precipitated and form scale, and the unqualified water quality will also cause corrosion of the inner wall of the pipeline, the formation of scale and the corrosion of the pipeline will affect the heat exchange efficiency and shorten the service life of the circulating pipeline; 3. the water circulating device will have insufficient water supply pressure or flow due to bearing oil shortage, motor overloading and burning, etc. during long-term use, which cannot meet the cleaning demand or cooling capacity requirement of the bypass branch, and affects the normal work of the cooling water system. SUMMARY

[0005] The application provides a cooling circulating water redundancy guarantee system to solve the technical problem that the water circulating device fault causes insufficient water supply pressure or flow, and affects the normal work of the cooling water system; and the purpose of the application is also to provide a use method of the cooling circulating water redundancy guarantee system.

[0006] To solve the above problems, the cooling circulating water redundancy guarantee system provided by the present application adopts the following technical scheme: A cooling circulating water redundancy guarantee system, comprising a water tank, a power source and a controller; The ultrapure water inlet of the water tank is connected with an ultrapure water source through an ultrapure water pipeline, and the water outlet is connected with the power source through a first circulating pipeline section, and an ultrapure water switch valve is arranged on the ultrapure water pipeline; The power source comprises a first automatic pump, a second automatic pump, a standby electric pump and an oil pump arranged in parallel, and the standby electric pump is connected with a trigger switch; The water outlets of the first automatic pump, the second automatic pump, the standby electric pump and the oil pump are connected and converged at a second circulating pipeline section; A cooling pipeline is arranged in the heating equipment, the water inlet of the cooling pipeline is connected with the second circulating pipeline section, and the water outlet is connected with the circulating water inlet of the water tank through a third circulating pipeline section; The ultrapure water pipeline extends into the water tank, and a first liquid level switch is arranged at the end of the ultrapure water pipeline, and the first liquid level switch, the ultrapure water switch valve, the first automatic pump, the second automatic pump and the trigger switch are all signal-connected with the controller.

[0007] The cooling circulating water redundancy guarantee system provided by the present application has the following beneficial effects: 1. By arranging the first automatic pump, the second automatic pump, the standby electric pump and the oil pump in parallel, connecting the standby electric pump with the trigger switch, and signal-connecting the first automatic pump, the second automatic pump and the trigger switch with the controller, on the one hand, when one of the automatic pumps fails or reaches the maintenance time limit, the other automatic pump can be opened through the controller to ensure the normal operation of water circulation, so that the first automatic pump and the second automatic pump serve as standby electric pumps for each other; on the other hand, when both the first automatic pump and the second automatic pump fail, the trigger switch can be activated through the controller to start the local pump; in addition, when the power supply system fails and the first automatic pump, the second automatic pump and the standby electric pump all fail, the oil pump can be started to ensure the normal operation of water circulation.

[0008] 2. By arranging the first liquid level switch at the end of the ultrapure water pipeline, the water level in the water tank can be monitored in real time, when the water level is lower than the first liquid level switch, the first liquid level switch automatically opens and transmits the liquid level signal to the controller, the ultrapure water switch valve is opened by the controller to supplement ultrapure water into the water tank, so that the pump has enough water to transport, the basic pressure of the circulating pipeline is maintained, and the normal cooling of the heating equipment is ensured.

[0009] 3. The impurities such as ions, organic matter, microorganisms and particulate matter in the ultrapure water have very low content, and the resistivity reaches 18.2MΩ·cm, which can effectively avoid the deposition of scale in the circulating water system and ensure the safe and stable operation of the cooling circulating water system.

[0010] Through the above arrangement, the application forms triple redundancy protection by arranging the first automatic pump, the second automatic pump, the standby electric pump and the oil pump in parallel, avoids the interruption of water supply caused by the failure of a single power source, ensures the stability of pressure and flow, and effectively solves the technical problems that the water circulation device failure in the prior art leads to insufficient water supply pressure or flow, affecting the normal work of the cooling water system.

[0011] Further, the water tank is provided with a fire-fighting water inlet connected to a fire-fighting water source through a fire-fighting water path, and a fire-fighting water on-off valve connected to the controller.

[0012] Beneficial effect: On the basis of the original ultrapure water source, a fire-fighting water source is added as a backup water source. When the ultrapure water source fails or the water volume is insufficient, the fire-fighting water can quickly make up for the position, avoiding the interruption of water cooling circulation caused by the continuous decrease of the water level in the water tank.

[0013] Further, the side wall of the water tank is provided with a second liquid level switch connected to the controller, and the installation height of the second liquid level switch is lower than that of the first liquid level switch. When the water level in the water tank is lower than the second liquid level switch, the controller controls the fire-fighting water on-off valve to open to introduce fire-fighting water into the water tank.

[0014] Further, the side wall of the water tank is provided with a third liquid level switch, and the installation height of the third liquid level switch is higher than that of the second liquid level switch and lower than that of the first liquid level switch. The third liquid level switch is connected to an alarm.

[0015] Further, it further comprises a heat exchanger, the water inlet of the heat exchanger is connected to the water outlet of the second circulation pipe section, and the water outlet of the heat exchanger is connected to the water inlet of the cooling pipe. The heat exchanger has a heat exchange pipe, the refrigerant inlet of the heat exchange pipe is connected to the outlet of an external cooling source, and the refrigerant outlet of the heat exchange pipe is connected to the inlet of the external cooling source.

[0016] Beneficial effect: The heat exchanger is connected in series between the second circulation pipe section and the cooling pipe. The circulating water is first cooled by the heat exchanger and the external refrigerant, and then enters the cooling pipe of the heating equipment. Compared with single circulating water natural cooling, the water temperature entering the cooling pipe can be greatly reduced by cooling the water in the second circulation pipe section with the refrigerant, which improves the cooling rate of the heating equipment, especially suitable for high-load and high-temperature working conditions of the equipment, and avoids overheating of the equipment due to insufficient cooling.

[0017] Further, the ultrapure water pipeline is provided with a first pressure transmitter, the second circulating pipe section is provided with a second pressure transmitter, and the third circulating pipe section is provided with a third pressure transmitter, and the first pressure transmitter, the second pressure transmitter and the third pressure transmitter are all in signal connection with the controller.

[0018] Beneficial effects: By arranging three pressure transmitters in signal connection with the controller to detect the pressure states of the ultrapure water pipeline, the second circulating pipe section and the third circulating pipe section respectively, the pressure data of each link in the water circulation process can be monitored in real time, and the monitored data can be transmitted to the controller, so that the fault range can be quickly located, and the operation and maintenance efficiency is improved.

[0019] Further, the water tank is provided with an electric conductivity transmitter for monitoring the purity of the water stored in the water tank.

[0020] Further, the lower part of the water tank is provided with a wastewater discharge valve for discharging the water in the water tank when the electric conductivity of the water stored in the water tank is greater than or equal to 1.0 muS / cm.

[0021] To solve the above problems, the use method of the cooling circulating water redundancy guarantee system provided by the application adopts the following technical scheme: The use method of the cooling circulating water redundancy guarantee system is applied to the cooling circulating water redundancy guarantee system, and is characterized by comprising the following steps: S1: The controller controls to open the ultrapure water on-off valve, and ultrapure water is introduced into the water tank, when the water level in the water tank rises to the circulating water level, the controller starts the first automatic pump or the second automatic pump, and the water in the water tank is pumped and sequentially transported along the first circulating pipe section, the second circulating pipe section, the cooling pipeline and the third circulating pipe section to realize water circulation; S2: When the water level in the water tank rises to the first liquid level switch, the controller controls to close the ultrapure water on-off valve; S3: When the water level in the water tank is lower than the first liquid level switch, the controller controls to open the ultrapure water on-off valve to supplement ultrapure water into the water tank until the water level in the water tank rises to the first liquid level switch; When the first / second automatic pump fails or is under maintenance, the controller controls to open the second / first automatic pump to replace the first / second automatic pump; when both the first automatic pump and the second automatic pump fail, the standby electric pump is opened to ensure the normal operation of water circulation; when the power supply fails, the oil pump is opened to ensure the normal operation of water circulation.

[0022] The use method of the cooling circulating water redundancy guarantee system provided by the application has the following beneficial effects: 1. When the first / second automatic pump fails, the controller controls the opening of the second / first automatic pump to replace the first / second automatic pump, so that the first automatic pump and the second automatic pump are backup pumps for each other, the power source can be quickly replaced, the pressure and flow of the second circulating pipeline are maintained, and water supply interruption caused by single pump failure is avoided; when the first automatic pump and the second automatic pump both fail, the standby electric pump is opened to ensure the normal operation of water circulation, and the reliability of the system is further enhanced; when the power supply fails, the oil pump is opened, the use of the oil pump does not depend on the conventional power supply, and the oil pump can independently operate in the case of power interruption to provide power for water circulation, so that water circulation interruption caused by power supply problems can be avoided, the cooling water system can still maintain a certain water supply pressure and flow under various sudden conditions, and the normal cooling function of the system is maintained.

[0023] 2. Super-pure water is first introduced into the water tank, when the water level in the water tank rises to the circulating water level, the controller controls the opening of the first automatic pump or the second automatic pump, the super-pure water starts to circulate between the first circulating pipe section, the second circulating pipe section and the third circulating pipe section, while circulating, the super-pure water continues to be introduced into the water tank until the liquid level in the water tank rises to the first liquid level switch, so that water can be supplemented while circulating.

[0024] 3. When the liquid level in the water tank rises to the first liquid level switch, the controller closes the super-pure water on-off valve and stops water supplementing; when the liquid level is lower than the first liquid level switch, the controller opens the super-pure water on-off valve to supplement water until the liquid level rises to the first liquid level switch. This precise water level control can ensure that there is always enough water in the water tank to participate in circulation, avoiding water circulation interruption or insufficient flow caused by too low water level, so as to maintain the basic water supply pressure and flow of the cooling water system.

[0025] In summary, the present application effectively solves the technical problem that water circulation device failure in the prior art leads to insufficient water supply pressure or flow, affecting the normal work of the cooling water system.

[0026] Further, in step S3, when the liquid level in the water tank is lower than the second liquid level switch, the controller controls the opening of the fire-fighting water on-off valve to introduce fire-fighting water into the water tank to ensure the normal operation of water circulation. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present application are shown by way of example, and wherein like reference numerals refer to like elements throughout. In the drawings: Figure 1 A structure diagram of a cooling circulating water redundancy guarantee system provided by the present application; Figure 2A flowchart illustrating the usage method of the cooling circulating water redundancy protection system provided by the present invention; Figure 3 The control flowchart of the redundant water supply in the usage method of the cooling circulating water redundancy guarantee system provided by the present invention is shown. Figure 4 The control flowchart for ultrapure water replacement in the usage method of the cooling circulating water redundancy protection system provided by the present invention is shown. Figure 5 The control flowchart for redundant start-up of water pumps in the usage method of the cooling circulating water redundancy protection system provided by the present invention is shown.

[0028] Explanation of reference numerals in the attached figures: 1. Water tank; 11. First level switch; 12. Second level switch; 13. Third level switch; 14. Conductivity transmitter; 15. Wastewater discharge valve; 16. Level gauge; 21. Controller; 31. Ultrapure water pipeline; 311. Ultrapure water switch valve; 312. First pressure transmitter; 32. Ultrapure water source; 41. First circulation section; 42. Second circulation section; 421. Second pressure transmitter; 43. Third circulation section; 431. Third pressure transmitter; 51. First automatic pump; 52. Second automatic pump; 53. Standby electric pump; 54. Oil pump; 61. Heating equipment; 71. Fire water system; 72. Fire water source; 73. Fire water switch valve; 74. Main fire water valve; 8. Heat exchanger; 81. Heat exchange piping; 82. External cooling source. Detailed Implementation

[0029] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0030] An embodiment of the cooling circulating water redundancy protection system provided by the present invention: like Figure 1 As shown, the cooling circulating water redundancy protection system includes a water tank 1, a power source, and a controller 21. The heating equipment 61 is equipped with cooling pipes, the inlet of which is connected to the outlet of the power source, and the outlet of which is connected to the circulating water inlet of the water tank 1.

[0031] Regarding the water tank 1. The ultrapure water inlet of the water tank 1 is connected with the ultrapure water source 32 through the ultrapure water pipeline 31, and the water outlet is connected with the power source through the first circulating pipeline section 41, and the ultrapure water pipeline 31 is provided with an ultrapure water switch valve 311. In order to quickly judge the water level in the water tank 1 and supplement ultrapure water in time when the water level in the water tank 1 is low, the ultrapure water pipeline 31 is extended into the water tank 1, and a first liquid level switch 11 is arranged at the end of the ultrapure water pipeline 31. The first liquid level switch 11 and the ultrapure water switch valve 311 are signal connected with the controller 21.

[0032] In the embodiment, the float valve is used as the first liquid level switch 11.

[0033] In order to ensure that there is enough water for cooling in the water tank 1 when the ultrapure water supply fails, a fire water inlet is further arranged on the water tank 1, the fire water inlet is connected with the fire water source 72 through the fire water pipeline 71, the fire water pipeline 71 is provided with a fire water switch valve 73 and a fire water total valve 74 arranged in sequence along the conveying direction of the fire water, and the fire water switch valve 73 is signal connected with the controller 21. The fire water is an emergency resource that is standardly provided in an industrial site, and it is not necessary to additionally build a special emergency water source. By connecting the fire water source 72 with the water tank 1, water can be quickly supplied to the water tank 1 when the ultrapure water source 32 fails, so as to form a water source redundancy guarantee and meet the requirement of water circulation.

[0034] It should be noted that the fire water total valve 74 is kept in a normally closed state before the cooling circulating water redundancy guarantee system is put into use, and is kept in a normally open state after the cooling circulating water redundancy guarantee system is put into use.

[0035] In the embodiment, a second liquid level switch 12 is arranged on the side wall of the water tank 1 and signal connected with the controller 21, and the installation height of the second liquid level switch 12 is lower than that of the first liquid level switch 11. When the water level in the water tank 1 is lower than the installation height of the second liquid level switch 12, the controller 21 controls the fire water switch valve 73 to be opened to introduce the fire water into the water tank 1.

[0036] In the embodiment, a third liquid level switch 13 is arranged on the side wall of the water tank 1, the installation height of the third liquid level switch 13 is higher than that of the second liquid level switch 12 and lower than that of the first liquid level switch 11, and the third switch is connected with an alarm to issue a warning through the alarm when the water level in the water tank 1 is lower than the installation height of the third liquid level switch 13 but higher than the installation height of the second liquid level switch 12, so as to remind the staff to take measures.

[0037] For the ultra-pure water, its conductivity is less than or equal to 0.055 μS / cm (μS / cm is microsiemens per centimeter), when the ultra-pure water in the water tank 1 is used for a long time, or the fire-fighting water is introduced into the water tank 1, the conductivity of the circulating water will rise. Therefore, the conductivity transmitter 14 connected with the controller 21 is arranged in the water tank 1, to monitor the purity (the content of ionic impurities) of the water in the water tank 1 through the conductivity transmitter 14, when the conductivity transmitter 14 monitors that the conductivity of the water in the water tank 1 is greater than or equal to 1.0 μS / cm, the controller 21 controls the waste water discharge valve 15 to open, and the ultra-pure water switch to open, to discharge the water in the water tank 1, and introduce the ultra-pure water into the water tank 1, to replace the water with high conductivity with the ultra-pure water.

[0038] In the embodiment, the water tank 1 is further provided with the liquid level meter 16 connected with the controller 21.

[0039] Regarding the power source, the power source includes the first automatic pump 51, the second automatic pump 52, the standby electric pump 53 and the oil pump 54 arranged in parallel, the standby electric pump 53 is connected with the trigger switch, the first automatic pump 51, the second automatic pump 52 and the trigger switch are all connected with the controller 21, and the water outlet pipes of the first automatic pump 51, the second automatic pump 52, the standby electric pump 53 and the oil pump 54 are intersected and converged to the second circulating pipe section 42, and the end of the second circulating pipe section 42 is connected with the heating device 61. The first automatic pump 51, the second automatic pump 52, the standby electric pump 53 and the oil pump 54 arranged in parallel constitute the power source guarantee of the cooling circulating water redundant guarantee system.

[0040] In the embodiment, the first automatic pump 51 and the second automatic pump 52 are both variable frequency pumps, and the trigger switch is a relay.

[0041] In order to improve the cooling effect of the cooling circulating water on the heating device 61, in the embodiment, the heat exchanger 8 is arranged between the outlet of the second circulating pipe section 42 and the inlet of the cooling pipeline, the heat exchanger 8 has the heat exchange pipeline 81, the coolant inlet of the heat exchange pipeline 81 is connected with the outlet of the external cooling source 82, and the coolant outlet of the heat exchange pipeline 81 is connected with the inlet of the external cooling source 82.

[0042] As Figure 1As shown, in order to monitor the pressure state of the ultrapure water pipeline 31, the second circulating pipe section 42 and the third circulating pipe section 43, in the embodiment, the first pressure transmitter 312 is arranged on the ultrapure water pipeline 31, the second pressure transmitter 421 is arranged on the second circulating pipe section 42, and the third pressure transmitter 431 is arranged on the third circulating pipe section 43, and the first pressure transmitter 312, the second pressure transmitter 421 and the third pressure transmitter 431 are all signal connected with the controller 21, the pressure data in the pipeline is monitored through the pressure transmitters, and the monitored pressure data is transmitted to the controller 21, so that the fault range can be quickly located and feedback can be made in time.

[0043] When the pressure transmitter monitors that the pressure in the pipeline is lower than the set value, it is determined that the pump serving as the power source fails.

[0044] It should be noted that the heating equipment 61 in the application refers to equipment such as a kiln, a platinum channel and a muffle that needs to be used in the initial stage of glass production. Figure 1 In the embodiment, the equipment connected with the controller 21 through the dashed line is the equipment connected to the control system of the controller 21.

[0045] The working principle of the cooling circulating water redundancy guarantee system provided by the application is as follows: Firstly, the controller 21 controls to close the fire water on-off valve 73 and open the ultrapure water on-off valve 311, and the ultrapure water is introduced into the water tank 1, and when the water level in the water tank 1 rises to the third liquid level switch 13, the controller 21 controls to open the first automatic valve or the second automatic valve, and the water in the water tank 1 is extracted and sequentially delivered along the first circulating pipe section 41, the second circulating pipe section 42, the heat exchanger 8, the cooling pipe section and the third circulating pipe section 43 to realize water circulation.

[0046] When the water level in the water tank 1 rises to the first liquid level switch 11, the controller 21 controls to close the ultrapure water on-off valve 311.

[0047] When the water level in the water tank 1 is lower than the first liquid level switch 11, the first liquid level switch 11 is opened and sends a signal to the controller 21, the controller 21 controls to open the ultrapure water on-off valve 311 to supplement the ultrapure water into the water tank 1 until the water level in the water tank 1 rises to the first liquid level switch 11, when the water level in the water tank 1 is lower than the installation height of the third liquid level switch 13 but higher than the installation height of the second liquid level switch 12, an alarm is issued to remind the staff to take measures, and when the water level in the water tank 1 is lower than the installation height of the second liquid level switch 12, the controller 21 controls to open the fire water on-off valve 73 to introduce the fire water into the water tank 1, and when the water level in the water tank 1 rises to the first liquid level switch 11, the controller 21 controls to close the fire water on-off valve 73.

[0048] When the first automatic pump 51 is used as the power source, if the first automatic pump 51 fails or needs maintenance, the controller 21 controls the second automatic pump 52 to be turned on to replace the first automatic pump 51; when the second automatic pump 52 is used as the power source, if the second automatic pump 52 fails or needs maintenance, the controller 21 controls the first automatic pump 51 to be turned on to replace the second automatic pump 52; when both the first automatic pump 51 and the second automatic pump 52 fail, the controller 21 controls the trigger switch to be turned on to start the backup electric pump 53, thereby ensuring the normal operation of water circulation; when the power supply fails, the first automatic pump 51, the second automatic pump 52 and the backup electric pump 53 cannot be used, and the oil pump 54 is turned on to ensure the normal operation of water circulation.

[0049] An embodiment of the usage method of the cooling circulating water redundancy protection system provided by the present invention: like Figure 2 As shown, the method for using the cooling water redundancy protection system, applied to the aforementioned cooling water redundancy protection system, includes the following steps: S1: The controller controls the opening of the ultrapure water switch valve to introduce ultrapure water into the water tank. When the water level in the water tank rises to the circulating water level, the controller starts the first automatic pump or the second automatic pump to draw water from the water tank and transport it sequentially along the first circulating pipe section, the second circulating pipe section, the cooling pipe and the third circulating pipe section to achieve water circulation. S2: When the water level in the tank rises to the first level switch, the controller closes the ultrapure water switch valve. S3: When the water level in the tank is lower than the first level switch, the controller opens the ultrapure water switch valve to add ultrapure water to the tank until the water level in the tank rises to the first level switch. In step S1, when the water level in the water tank rises to the third level switch, the controller turns on the first automatic pump or the second automatic pump to draw water ice from the water tank and transport it sequentially along the first circulation pipe section, the second circulation pipe section, the cooling pipe and the third circulation pipe section to achieve water circulation.

[0050] When the first / second automatic pump fails or is under maintenance, the controller activates the second / first automatic pump to replace it. When both the first and second automatic pumps fail, the backup electric pump is activated to ensure normal water circulation. When the power supply fails, the oil pump is activated to ensure normal water circulation.

[0051] like Figure 5As shown, in step S3, when the first automatic pump is used as the power source, if the first automatic pump fails or is under maintenance, the controller controls the second automatic pump to be turned on to replace the first automatic pump; when the second automatic pump is used as the power source, if the second automatic pump fails or is under maintenance, the controller controls the first automatic pump to be turned on to replace the second automatic pump; when both the first and second automatic pumps fail, the controller controls the trigger switch to be turned on to start the backup electric pump, thereby ensuring the normal operation of water circulation; when the power supply fails, the first automatic pump, the second automatic pump, and the backup electric pump cannot be used, and the oil pump is turned on to ensure the normal operation of water circulation.

[0052] like Figure 3 As shown, in this embodiment, when the water level in the tank is lower than the first level switch, the first level switch opens and sends a signal to the controller. The controller then controls the opening of the ultrapure water switch valve to replenish ultrapure water into the tank until the water level rises to the first level switch. When the water level in the tank is lower than the installation height of the third level switch but higher than the installation height of the second level switch, an alarm is triggered to remind staff to take measures. When the water level in the tank is lower than the installation height of the second level switch, the controller controls the opening of the fire water switch valve to supply fire water into the tank. When the water level rises to the first level switch, the controller controls the closing of the fire water switch valve.

[0053] like Figure 4 As shown in this embodiment, if fire-fighting water is introduced into the water tank, causing the conductivity of the water detected by the conductivity transmitter to be too high, then after the ultrapure water source is repaired, the controller controls the wastewater discharge valve to open and the ultrapure water switch to open, so as to discharge the water in the water tank and introduce ultrapure water into the water tank to replace the water with high conductivity, until the conductivity of the water detected by the conductivity transmitter is less than or equal to 0.055μS / cm.

[0054] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0055] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A cooling recirculating water redundant assurance system, characterized by, The water tank, the power source and the controller are included. The ultrapure water inlet of the water tank is connected with an ultrapure water source through an ultrapure water pipeline, and the outlet thereof is connected with the power source through a first circulation pipeline section, and an ultrapure water switch valve is arranged on the ultrapure water pipeline. The power source includes a first automatic pump, a second automatic pump, a standby electric pump and an oil pump which are arranged in parallel, and the standby electric pump is connected with a trigger switch. The outlets of the first automatic pump, the second automatic pump, the standby electric pump and the oil pump are connected with each other and are connected with a second circulation pipeline section. A cooling pipeline is arranged in the heating device, the inlet of the cooling pipeline is connected with the second circulation pipeline section, and the outlet thereof is connected with the circulation water inlet of the water tank through a third circulation pipeline section. The ultrapure water pipeline extends into the water tank, and a first liquid level switch is arranged at the end of the ultrapure water pipeline, and the first liquid level switch, the ultrapure water switch valve, the first automatic pump, the second automatic pump and the trigger switch are all signal connected with the controller.

2. The cooling recirculating water redundancy assurance system of claim 1, wherein, A fire-fighting water inlet is arranged on the water tank, the fire-fighting water inlet is connected with a fire-fighting water source through a fire-fighting water pipeline, and a fire-fighting water switch valve signal connected with the controller is arranged on the fire-fighting water pipeline.

3. The cooling recirculating water redundancy assurance system of claim 2, wherein, A second liquid level switch signal connected with the controller is arranged on the side wall of the water tank, the installation height of the second liquid level switch is lower than that of the first liquid level switch, and when the water level in the water tank is lower than the second liquid level switch, the controller controls the fire-fighting water switch valve to be opened to introduce fire-fighting water into the water tank.

4. The cooling recirculating water redundancy assurance system of claim 3, wherein, A third liquid level switch is arranged on the side wall of the water tank, the installation height of the third liquid level switch is higher than that of the second liquid level switch and lower than that of the first liquid level switch, and the third liquid level switch is connected with an alarm.

5. The cooling recirculating water redundancy assurance system of any one of claims 1 to 4, wherein, A heat exchanger is further included, the inlet of the heat exchanger is connected with the outlet of the second circulation pipeline section, and the outlet thereof is connected with the inlet of the cooling pipeline; the heat exchanger has a heat exchange pipeline therein, the coolant inlet of the heat exchange pipeline is connected with the outlet of an external cooling source, and the coolant outlet thereof is connected with the inlet of the external cooling source.

6. The cooling recirculating water redundancy assurance system of any one of claims 1 to 4, wherein, A first pressure transmitter is arranged on the ultrapure water pipeline, a second pressure transmitter is arranged on the second circulation pipeline section, and a third pressure transmitter is arranged on the third circulation pipeline section, and the first pressure transmitter, the second pressure transmitter and the third pressure transmitter are all signal connected with the controller.

7. The cooling recirculating water redundancy assurance system of any one of claims 1 to 4, wherein, An electric conductivity transmitter is arranged in the water tank to monitor the purity of the water stored in the water tank.

8. The cooling recirculating water redundancy assurance system of claim 7, wherein, A waste water discharge valve is arranged at the lower part of the water tank to discharge the water in the water tank when the electric conductivity of the water stored in the water tank is greater than or equal to 1.0 μS / cm.

9. A method for using a cooling circulating water redundancy assurance system, applied to the cooling circulating water redundancy assurance system of any one of claims 1 to 8, characterized in that, The method includes the following steps: S1: the controller controls the ultrapure water switch valve to be opened to introduce ultrapure water into the water tank, and when the water level in the water tank rises to a circulation water level, the controller opens the first automatic pump or the second automatic pump to draw the water in the water tank and make it be sequentially conveyed along the first circulation pipeline section, the second circulation pipeline section, the cooling pipeline and the third circulation pipeline section to realize water circulation; S2: when the water level in the water tank rises to the first liquid level switch, the controller controls the ultrapure water switch valve to be closed. S3: When the water level in the water tank is lower than the first liquid level switch, the controller controls to open the ultrapure water switch valve, and supplement the ultrapure water into the water tank until the water level in the water tank rises to the first liquid level switch; When the first / second automatic pump fails or is under maintenance, the controller controls to open the second / first automatic pump to replace the first / second automatic pump; when both the first automatic pump and the second automatic pump fail, the standby electric pump is opened to ensure the normal operation of water circulation; when the power supply fails, the oil pump is opened to ensure the normal operation of water circulation.

10. The method of using a cooling recirculating water redundancy assurance system of claim 9, wherein, In step S3, when the water level in the water tank is lower than the second liquid level switch, the controller controls to open the fire water switch valve to introduce the fire water into the water tank to ensure the normal operation of water circulation.

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