[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given below. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art clearly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0027] Combine Figure 1-5 As shown, figure 1 It is a schematic diagram of the principle structure of the online cleaning and descaling water treatment system of the present invention, figure 2 Is a top view of the water treatment unit of the present invention, image 3 Is a side view of the water treatment unit of the present invention, Figure 4 Is another side view of the water treatment unit of the present invention, Figure 5 It is a schematic structural diagram of the filter according to the present invention; the online cleaning and descaling water treatment system is used to clean the condenser 2 and to treat the circulating water of its internal heat exchange pipes, including a water treatment unit 1 and a filter The separator 3, the water treatment unit 1, the condenser 2, and the filter 3 are cyclically connected in turn, the condenser 2 includes a condenser water inlet 21 and a condenser water outlet 22, and the filter 3 includes a rubber ball At the inlet end 31 and the rubber ball outlet end 32, the water flows from the condenser 2 through the filter 3 into the water treatment unit 1 to circulate, and the water quality treatment is performed in the water treatment unit 1. When the condenser 2 reaches the cleaning condition, the water treatment unit 1 sends out rubber balls and flows in from the condenser water inlet 21 through the water stream. The rubber balls scrub the inside of the condenser 2 and then remove the scale. The water outlet 22 of the filter enters the rubber ball inlet end 31 of the filter 3 and flows back to the water treatment unit 1 through the rubber ball outlet end 32.
[0028] The water treatment unit 1 includes a ball dispenser 10, a water pump 11, a three-way control valve 12, an electrochemical reactor 13, and a control unit 15. The ball dispenser 10, a water pump 11, a three-way control valve 12, and an electrochemical reactor 13 In order to communicate, the water pump 11 is respectively connected to the ball dispenser 10 and the three-way control valve 12, and the control unit 15 is electrically connected to the water pump 11 and the three-way control valve 12 respectively; the three-way control The two water outlet ends of the valve 12 are respectively connected to the ball dispenser 10 and the electrochemical reactor 13, and the three-way control valve 12 adjusts the water flow direction under the control of the control unit 15 to realize the water quality treatment of the electrochemical reactor 13 Or the ball dispenser 10 sends a glue ball.
[0029] In the embodiment of the present invention, the ball dispenser 10 includes a ball receiving end 101, a ball serving end 102, a rubber ball recovery net 103, a rubber ball storage chamber 104, and a baffle 105. The ball receiving end 101 and the filter 3 is connected to the outlet end 32 of the gum ball, the ball dispenser 10 is provided with the gum ball recovery net 103, the bottom of the gum ball recovery net 103 is open, and the gum ball storage chamber 104 is located below the opening. The rubber ball recovery net 103 is in communication with the ball receiving end 101, the rubber ball storage chamber 104, and the water pump 11, and the rubber ball storage chamber 104 is in communication with the ball serving end 102 and the three-way control valve 12, respectively. The plate 105 is arranged in the rubber ball storage chamber 104 and is located below the opening. The baffle 105 is opened and closed under the action of water flow to block the bottom opening of the rubber ball recovery net 103 or the rubber ball storage chamber 104 and the rubber ball storage chamber 104. The communication point of the three-way control valve 12 is described.
[0030] Of course, it should be noted that the control unit 15 and other components of the water treatment unit 1 can be integrally connected. In other embodiments of the present invention, the control unit 15 can also be connected externally according to actual installation requirements. It is electrically connected to other components of the water treatment unit 1, or an external host computer performs the same function
[0031] The water pump 11 adopts a variable frequency water pump. Under the control of the control unit 15, the flow rate of the water pump 11 can be adjusted and adapted to the ball dispenser 10 for rubber ball sending or the electrochemical reactor 13 for water quality treatment. Different flow requirements for different working conditions. When the online cleaning and descaling water treatment system is in the rubber ball cleaning mode, the required water flow is large, the water pump 11 runs at power frequency, the three-way control valve 12 switches the water flow direction to the ball dispenser 10, and the baffle 105 is in the water flow Under the action of turning upwards, the bottom opening of the rubber ball recovery net 103 is blocked. The rubber balls in the rubber ball storage chamber 104 are discharged from the serving end 102 under water pressure and enter the condenser 2. The internal pipeline of the condenser 2 enters the rubber ball inlet end 31 of the filter 3 after being scrubbed, and returns to the rubber ball recovery net 103 of the ball dispenser 10 through the rubber ball outlet end 32. After the cleaning process is completed, the three-way control valve 12 switches the direction of water flow to the electrochemical reactor 13, and the baffle 105 hangs down under the action of gravity and blocks the communication between the rubber ball storage chamber 104 and the three-way control valve 12. The cleaning rubber balls fall from the rubber ball recycling net 103 back into the rubber ball storage chamber 104 to prepare for the next rubber ball cleaning. The water flows through the water pump 11 through the three-way control valve 12 and enters the electrochemical reactor 13 for electrochemical reaction. The electrochemical reactor 13 performs scale absorption and descaling treatment on the water flowing through it. The online cleaning and descaling water treatment system is in a water quality treatment mode, and the required water flow is relatively small. The water pump 11 works in a frequency conversion working condition.
[0032] The electrochemical reactor 13 is used for absorbing and descaling the water flowing through it. The electrochemical reactor 13 is composed of a reaction chamber, an EST electrode, an electric scraper device, and an automatic drain valve 130. The reaction chamber serves as a cathode. The EST electrode is used as the anode, and the EST electrode is its core component, which is mainly made of titanium alloy material and coated with rare metal materials; the EST electrode has a very low oxygen evolution potential, which can effectively reduce the cell voltage of the electrolysis reaction. Improve the efficiency of electrochemical reaction and reduce power consumption. After the energized reaction between the anode and the cathode, under the condition of maintaining a certain strength of the reaction current in the reaction chamber, a high concentration of hydroxide is formed near the wall of the reaction chamber. This elevated pH environment allows minerals that are easy to scale to form crystals The EST electrode precipitates calcium and magnesium ions from the circulating water and adheres to the inner wall of the reaction chamber through electrochemical reactions. The electric scraper device and the automatic drain valve 130 are activated at regular intervals to remove the deposits on the inner wall of the reaction chamber. The scale is scraped and discharged from the system through the automatic drain valve 130; at the same time, the electrochemical reaction can effectively kill the bacteria and algae in the water and improve the water quality, thereby ensuring that the rubber ball runs under good water quality conditions and prolongs the service life of the rubber ball.
[0033] The specific process of this series of electrochemical reactions is:
[0034] 1. Produce a large amount of OH near the inner wall of the reaction chamber - Ions form a strong alkaline environment. In the diffusion layer adjacent to the wall of the reaction chamber, the strong alkaline environment disturbs the chemical balance of scale, forming calcium carbonate that precipitates out of the water and adheres to the inner wall;
[0035] 2. At the same time, the current of the cathode causes the dissolved heavy metal ions to form oxide precipitates, which sink to the bottom of the reaction chamber. Near the anode, the chloride ions are electrolytically oxidized to generate free chlorine or hypochlorous acid (C1O - )
[0036] 3. At the same time generate hydroxide radicals, oxygen radicals, ozone and hydrogen peroxide near the anode, these substances further strengthen the sterilization and algae killing effect of the entire water system in the reaction chamber;
[0037] 4. Suspended matter is unstable under the action of electric field, flocculating and sedimenting to the bottom of the reaction chamber.
[0038] When the working time of the electrochemical reactor 13 reaches the set value or the conductivity of the water is too high, the control unit 15 can start the automatic scaling, draining and cleaning procedures, the automatic drain valve 130 opens automatically, and the electric scraper device The dirt scraping motor inside is activated, driving the scraper to rotate and scrape off the soft scale on the inner wall of the reaction chamber, and together with the sediment, it is discharged from the reaction chamber by the automatic drain valve 130.
[0039] In the embodiment of the present invention, the online cleaning and descaling water treatment system further includes a monitoring device, the monitoring device is arranged on the condenser 2, and the monitoring device feeds back the working status of the condenser 2 to the The control unit 15 determines whether the dirt level inside the condenser 2 reaches the cleaning condition according to the monitoring data measured by the monitoring device to adjust the working mode of the water treatment unit 1 accordingly; the monitoring device Monitoring the working condition data of the condenser 2, such as small temperature difference data, etc., can determine the degree of contamination of the condenser 2. When the small temperature difference of the condenser 2 becomes larger, its heat exchange efficiency decreases. The water treatment unit 1 performs a rubber ball cleaning operation on the condenser 2. After the small temperature difference of the condenser 2 returns to normal, the water treatment unit 1 is now controlled to switch working modes to perform water quality treatment operations; in the implementation of the present invention In an example, the monitoring device feeds back monitoring data to the control unit 15, and the control unit 15 controls the water treatment unit 1 according to the monitoring data to execute corresponding working modes, including rubber ball cleaning mode and water quality treatment mode. .
[0040] In the embodiment of the present invention, the water treatment unit 1 may also be provided with a precision filter 14, which respectively communicates with the water outlet of the electrochemical reactor 13 and the condenser water inlet 21 of the condenser 2. The precision filter 14 can further intercept the suspended fine dirt precipitated by the electrochemical reactor 13, and use an electric sewage outlet to realize automatic dirt removal. The electrochemical reactor 13 and the precision filter 14 Cooperate to achieve optimal water quality treatment for the cooling water flow.
[0041] In the embodiment of the present invention, the filter 3 is also provided with a filter element 33 for centralized recovery of rubber balls, and two ends of the filter element 33 are respectively connected to the rubber ball inlet 31 and the rubber ball outlet. The end 32, wherein the filter element 33 is a mesh structure as a whole. Since the mesh of the screen is smaller than the diameter of the rubber ball, the rubber ball is trapped in the filter element 33 and returns to the ball dispenser 10 through the rubber ball outlet end 32; In some embodiments of the present invention, in order to facilitate the inspection and maintenance of the inside of the filter component 33, an inspection port 34 is provided on the outside of the filter component 33, through which maintenance personnel can inspect the The interior of the filter component 33 is maintained to effectively maintain the normal operation of the filter 3.
[0042] In the embodiment of the present invention, the condenser water inlet 21 is provided with a flow sensor 4 for monitoring the flow of water, and at the same time, the internal and external interfaces of the water treatment unit 1 are provided with soft connections and check valves 5 to avoid The return of the rubber ball and the vibration caused by the rubber ball during the sending and recycling process are avoided, and the leakage caused by external interference or human operation error during the long-term operation of the system is avoided, and the safety and stability of the system are greatly improved.
[0043] The working principle of the online cleaning and descaling water treatment system of the present invention is specifically as follows:
[0044] In the process of water quality treatment of the circulating water, the electrochemical reactor 13 is used to absorb and remove the scale of the water stream. At the same time, the precision filter 14 is used to further intercept the suspended fine scale precipitated by the electrochemical reactor 13 , So as to realize the optimal water quality treatment of the cooling water flow;
[0045] In the process of performing rubber ball cleaning on the condenser 2, the three-way control valve 12 switches the water flow direction according to the control signal of the control unit 15. The control unit 15 can adjust the water pump 11 to be in a variable frequency state or a power frequency state, and the water pressure The rubber balls in the rubber ball storage chamber 104 can be discharged from the serving end 102, driven by the water flow, and flowed into the end cap of the condenser water inlet 21, and the rubber balls exchange heat within the condenser 2 The copper pipe is scrubbed and descaled. The cleaning rubber balls with a diameter slightly larger than the heat exchange copper tube are randomly distributed in the condenser 2 main body into each heat exchange copper tube, and driven by the cooling circulating water, they squeeze and move from one end of the heat exchange copper tube to the other end. In this process, the dirt attached to the inner wall of the heat exchange copper tube is cleaned and removed. After scrubbing, the rubber ball enters the rubber ball inlet 31 of the filter 3 through the condenser water outlet 22, and the rubber ball is The filter element 33 in the filter 3 intercepts, collects, and returns to the ball dispenser 10 through the rubber ball outlet end 32. After the cleaning process is completed, the three-way control valve 12 adjusts the water flow direction to the electrochemical reactor 13. The control unit 15 switches the water pump 11 to the frequency conversion state, and at this time, the water flow enters the electrochemical reactor 13 to continue to perform the water quality treatment function, and repeat the above operation.
[0046] The online cleaning and descaling water treatment system of the embodiment of the present invention uses the ball dispenser 10 and the filter 3 to regularly clean the inner wall of the condenser 2 through rubber balls, and always keeps the inner wall of the condenser 2 heat exchange tube clean and free of scale. The heat exchange efficiency of the condenser 2 is improved, and at the same time, the electrochemical reactor 13 and the precision filter 14 cooperate to absorb and descale the circulating cooling water, and can effectively kill bacteria and algae in the water and improve water quality , So as to ensure that the rubber ball runs under good water quality conditions, thereby extending the service life of the rubber ball; it can monitor the working status of the condenser 2 in real time and realize the full performance of the system in the two working modes of rubber ball cleaning and water quality treatment. Automatic adjustment and operation, low maintenance cost, no chemical agent, no pollution to water quality, environmental friendliness, and broad application prospects.
