SCAL type intercooling circulating water corrosion monitoring and bypass flow treatment system

Abstract

The embodiment of the utility model discloses an SCAL type intercooling circulating water corrosion monitoring and bypass flow treatment system which comprises a bypass flow system and a corrosion monitoring system, the bypass flow system comprises a precision filtering assembly and a mixed bed treatment assembly, and the corrosion monitoring system comprises a linear polarization probe, an electrochemical corrosion detector and a corrosion monitoring module. According to the technical scheme, the metal corrosion rate of circulating water is monitored through the corrosion monitoring system, the corrosion rate of carbon steel and pure aluminum of equipment can be monitored, the overhaul and replacement frequency of the equipment can be calculated according to the corrosion rate, and early warning is given out to remind workers when the overhaul and replacement time is close. According to the technical scheme, circulating water of the intercooling equipment is purified through the bypass flow system, the defect that SCAL type intercooling circulation cannot be provided with water purification equipment is overcome, the heat transfer efficiency of circulating cooling water is effectively improved, and the service life of the circulating cooling water is effectively prolonged.

Description

Technical Field

[0001] This application relates to the field of circulating cooling technology, and in particular to a SCAL type intercooled circulating water corrosion monitoring and bypass treatment system. Background Technology

[0002] The SCAL type indirect air-cooled system uses pure aluminum radiators and carbon steel circulating water pipes, employing demineralized water as the circulating water. This type of indirect air-cooled system not only offers significant water-saving benefits but also, compared to direct air-cooled systems, boasts advantages such as lower back pressure, lower noise, stronger adaptability to environmental and meteorological conditions, and better operational economy. However, the lack of water purification equipment and the coexistence of two metals with significantly different chemical properties—carbon steel and pure aluminum—make water quality control and material corrosion prevention a major challenge.

[0003] Meanwhile, in a circulating cooling water system, the continuous recycling of cooling water deteriorates water quality, with scaling and corrosion being the main causes of system problems. Deteriorating process conditions, increased external impurities, and the addition of makeup water all exacerbate scaling and corrosion. Corrosion and scaling in circulating cooling water reduce the heat transfer efficiency of heat exchangers and shorten their service life. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, this utility model provides a SCAL type intercooled circulating water corrosion monitoring and bypass treatment system, comprising:

[0006] A bypass system is used to introduce circulating water from the SCAL type intercooling cycle, and after purification treatment, the circulating water is returned to the SCAL type intercooling cycle.

[0007] The bypass system includes a precision filtration assembly and a mixed bed treatment assembly;

[0008] A corrosion monitoring system is used to monitor the water quality at the inlet of the bypass system and to monitor the corrosion rate.

[0009] The corrosion monitoring system includes a linear polarization probe, an electrochemical corrosion monitor, and a corrosion monitoring module.

[0010] The linear polarization probe is positioned at the water inlet of the bypass system;

[0011] The electrochemical corrosion monitor is electrically connected to the linear polarization probe, and the electrochemical corrosion monitor is used to read and monitor the parameters fed back by the linear polarization probe.

[0012] The corrosion monitoring module is electrically connected to the electrochemical corrosion detector, and the corrosion monitoring module is used to monitor and calculate the parameters output by the electrochemical corrosion detector.

[0013] In one feasible implementation, the precision filtration assembly includes:

[0014] A filter water pipe, one end of which is connected to the existing valve at the intake point of the SCAL type intercooled circulating water main, and the other end of which is connected to the mixed bed treatment component.

[0015] A booster pump, wherein the booster pump is installed in the filter water pipe;

[0016] The linear polarization probe is disposed in the filter water pipe and is disposed upstream of the booster pump;

[0017] A precision filter is installed in the water filter pipe and downstream of the booster pump;

[0018] A first pressure gauge is installed in the filter water pipe and is located between the precision filter and the booster pump.

[0019] A metal rotor flow meter is installed in the filter water pipe, and the metal rotor flow meter is located downstream of the precision filter;

[0020] The first sewage pipe has one end connected to the precision filter and the other end connected to the external sewage discharge space.

[0021] The first sewage discharge valve is installed in the sewage discharge pipe.

[0022] In one feasible implementation, the precision filtration assembly further includes:

[0023] The first manual door is located upstream of the booster pump;

[0024] The second manual door is located between the first pressure gauge and the precision filter;

[0025] A check valve is provided between the booster pump and the first pressure gauge.

[0026] In one feasible implementation, the mixed bed processing assembly includes:

[0027] A mixed bed inlet pipe, one end of which is connected to the filter water pipe;

[0028] The first branch pipe is a three-way water pipe, and the first end of the first branch pipe is located at the mixed bed inlet pipe.

[0029] A second pressure gauge is installed at the second end of the first branch pipe;

[0030] A water inlet sampling port is located at the third end of the first branch pipe;

[0031] The mixed bed body, the top of which is connected to the other end of the mixed bed inlet pipe;

[0032] A mixed bed product water pipe, one end of which is connected to the bottom of the mixed bed body, and the other end of which is connected to the original valve of the SCAL type intercooled circulating water inlet header.

[0033] The second branch pipe is a three-way water pipe, and the first end of the second branch pipe is located at the mixed bed product water pipe.

[0034] The third pressure gauge is installed at the second end of the second branch pipe;

[0035] A product water sampling port is provided at the third end of the second branch pipe;

[0036] A conductivity meter is installed in the mixed bed permeate pipe, and the conductivity meter is installed downstream of the second branch pipe;

[0037] A resin trap is provided in the mixed bed permeate pipe and is located downstream of the conductivity meter.

[0038] In one feasible implementation, the mixed bed processing assembly further includes:

[0039] The third manual valve is located on the mixing water inlet pipe and is located upstream of the first branch pipe;

[0040] The fourth manual valve is located on the mixed bed permeate pipe and is located upstream of the second branch pipe;

[0041] An exhaust pipe, one end of which is located at the top of the mixed bed body, and the other end of which is connected to an external sewage discharge space;

[0042] The fifth manual door is located on the exhaust pipe;

[0043] The sixth manual valve is located in the mixed bed permeate pipe and is positioned between the conductivity meter and the resin trap.

[0044] The second drain pipe has one end connected to the resin trap and the other end connected to the external drain space.

[0045] The seventh manual door is installed on the second sewage pipe;

[0046] The eighth manual valve is located downstream of the mixed bed permeate pipe.

[0047] In one feasible implementation, the mixed bed processing assembly further includes:

[0048] A mixed bed regeneration component is disposed on the mixed bed body and is used for acid and alkali regeneration of the resin in the mixed bed body.

[0049] In one feasible implementation, the mixed-bed regeneration assembly includes:

[0050] The first drain pipe has one end connected to the top of the mixed bed body and the other end connected to the external sewage discharge space.

[0051] Alkali inlet, wherein the alkali inlet is disposed on the mixed bed body;

[0052] An acid inlet is provided, which is located in the mixed bed permeate pipe and upstream of the second drain pipe;

[0053] A resin delivery port is disposed on the mixing bed body;

[0054] The second drain pipe has one end connected to the mixed bed body and the other end connected to the external sewage discharge space.

[0055] A regenerated water pipe, one end of which is connected to the precision filter assembly, and the other end of which is connected to the mixed bed permeate pipe and between the acid inlet and the second drain pipe.

[0056] In one feasible implementation, the mixed-bed regeneration assembly further includes:

[0057] The ninth manual door is installed on the first drain pipe;

[0058] The tenth manual door is located on the second drain pipe.

[0059] In one feasible implementation, the mixed bed body includes:

[0060] Tank body;

[0061] Internal piping;

[0062] A rubber layer is disposed inside the tank body;

[0063] A sight glass is provided at the maximum backwash expansion layer height and the lower filter media interface of the tank body, and the inner surface of the sight glass is flush with the inner surface of the mixed bed body.

[0064] A manhole is provided in the tank body. The manhole has a manhole cover, a gasket, and a lifting rod. The inner surface of the manhole cover is flush with the inner surface of the tank body.

[0065] In one feasible implementation, the tank body is connected to the internal piping via a flange;

[0066] The internal pipeline is equipped with double-headed water caps at the water inlet, water collection, and water distribution outlets.

[0067] Compared with existing technologies, this utility model has at least the following beneficial effects: This technical solution monitors the metal corrosion rate of circulating water using a corrosion monitoring system, enabling monitoring of the corrosion rates of carbon steel and pure aluminum in equipment. It can also calculate the equipment maintenance and replacement frequency based on the corrosion rate and issue early warnings to remind personnel when maintenance or replacement time is approaching. This technical solution purifies the circulating water of the indirect cooling equipment through a bypass system, overcoming the disadvantage of SCAL-type indirect cooling systems that cannot be equipped with water purification equipment, effectively improving the heat transfer efficiency and service life of the circulating cooling water. Attached Figure Description

[0068] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0069] Figure 1 A flow path diagram of an embodiment of the SCAL type intercooled circulating water corrosion monitoring and bypass treatment system provided in this application;

[0070] Figure 2 A flow diagram of a precision filtration assembly according to an embodiment of this application;

[0071] Figure 3 A flow diagram of a mixed bed processing assembly according to one embodiment of this application;

[0072] Figure 4 A flow diagram of a mixed-bed regeneration assembly according to one embodiment of this application;

[0073] Figure 5This is a structural block diagram of a corrosion monitoring system according to an embodiment of this application.

[0074] in, Figure 1-5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0075] 100. Bypass system; 200. Corrosion monitoring system;

[0076] 110. Precision filtration assembly; 120. Mixed bed treatment assembly; 130. Mixed bed regeneration assembly;

[0077] 210. Linear polarization probe; 220. Electrochemical corrosion monitor; 230. Corrosion monitoring module;

[0078] 111. Filter pipe; 112. Booster pump; 113. Precision filter; 114. First pressure gauge; 115. Metal rotor flow meter; 116. First drain pipe; 117. First drain valve; 118. First manual valve; 119. Second manual valve; 1110. Check valve;

[0079] 121. Mixed bed inlet pipe; 122. First branch pipe; 123. Second pressure gauge; 124. Inlet water sampling port; 125. Mixed bed body; 126. Mixed bed product water pipe; 127. Second branch pipe; 128. Third pressure gauge; 129. Product water sampling port; 1210. Conductivity meter; 1211. Resin trap; 1213. Third manual valve; 1214. Exhaust pipe; 1215. Fifth manual valve; 1216. Sixth manual valve; 1217. Second drain pipe; 1218. Seventh manual valve; 1219. Eighth manual valve;

[0080] 131. First drain pipe; 132. Alkali inlet; 133. Acid inlet; 134. Resin delivery port; 135. Second drain pipe; 136. Reclaimed water pipe; 137. Ninth manual valve; 138. Tenth manual valve. Detailed Implementation

[0081] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0082] like Figure 1-5As shown in the embodiment of this application, a corrosion monitoring and bypass treatment system for SCAL type intercooled circulating water is proposed, comprising: a bypass system 100, which is used to introduce circulating water from the SCAL type intercooled circulation, purify the circulating water, and then return it to the SCAL type intercooled circulation; the bypass system 100 includes a precision filter assembly 110 and a mixed bed treatment assembly 120; and a corrosion monitoring system 200, which is used to monitor the water quality at the inlet of the bypass system 100 and monitor the corrosion rate; the corrosion monitoring system 200... The system includes a linear polarization probe 210, an electrochemical corrosion monitor 220, and a corrosion monitoring module 230. The linear polarization probe 210 is located at the water inlet of the bypass system 100. The electrochemical corrosion monitor 220 is electrically connected to the linear polarization probe and is used to read and monitor the parameters fed back by the linear polarization probe 210. The corrosion monitoring module 230 is electrically connected to the electrochemical corrosion detector and is used to monitor and calculate the parameters output by the electrochemical corrosion monitor 220.

[0083] The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system provided in this application embodiment refers to the SCAL type aluminum radiator for surface condensers. This corrosion monitoring and bypass treatment system is applied to the SCAL type intercooled circulating system.

[0084] This technical solution includes a bypass system 100 and a corrosion monitoring system 200.

[0085] The bypass system 100 is used to purify and filter the circulating water, and the corrosion monitoring system 200 is used to calculate and monitor the corrosion efficiency of the circulating water.

[0086] The bypass system 100 includes a precision filter assembly 110 and a mixed bed treatment assembly 120. The precision filter assembly 110 can filter impurities in the circulating water, and the mixed bed treatment assembly 120 can deeply remove salt substances in the circulating water, both of which can reduce the metal corrosion of the circulating water.

[0087] The corrosion monitoring system 200 includes a linear polarization probe 210, an electrochemical corrosion detector, and a corrosion monitoring module 230.

[0088] The linear polarization probe 210, together with the low-pressure bulb, is welded to the inlet pipe of the bypass system 100 via a branch pipe. After the resistance probe is installed, the 6-pin connector of the electrochemical corrosion monitor 220 is inserted into the probe connecting rod and tightened. The linear polarization probe 210 must be reliably connected to the monitor.

[0089] The linear polarization probe 210 requires a withstand voltage of 40 MPa and a temperature resistance of no less than 70℃. It can be mounted using a high-voltage carrier or a low-voltage mounting device. The electrode material is carbon steel or aluminum (1050A), and the reference electrode is an Ag / AgCl electrode. The housing material is 316L, and the housing sealing material is epoxy resin. The linear polarization probe 210 uses a detachable threaded connection; after disassembly and grinding of the measuring end face, it can be reinstalled using the probe mounting device.

[0090] The electrochemical corrosion monitor 220 employs the principle of AC impedance measurement. It measures the solution resistance Rs and polarization resistance Rp based on the high-frequency and low-frequency impedance regions of the AC impedance. Then, using the Stern equation icorr = B / Rp, it calculates the corrosion current density icorr and the corrosion rate. Here, B is the Stern coefficient; for the activated system, B = 26 mV, and for the passivated system, B = 52 mV. The value of B can also be calculated through polarization curve measurements. The impedance of the corrosion system is measured at both high and low frequencies. The dielectric resistance Rs is obtained through high-frequency impedance measurement, and the sum of Rs and Rp is measured at low frequencies. Subtracting the two yields the polarization resistance Rp. The measurement results are not affected by the dielectric resistance.

[0091] The electrochemical corrosion monitor 220 has a dielectric resistance range of 10Ω to 107Ω, a corrosion rate measurement range of 1.00mm / a to 10mm / a, a corrosion potential range of -2.5V to 2.5V, an absolute measurement accuracy of <1%, a power supply of DC 12V solar cell, an operating temperature range of -30℃ to 60℃, an operating humidity of ≤80%, a stainless steel casing, an IP67 protection rating, and an explosion-proof rating of ExibⅡCT4Gb.

[0092] The electrochemical corrosion monitor 220 has a 2M bytes flash memory, and the data is retained even after the instrument is powered off. The timed measurement interval is 1 to 24 hours, which can be set according to the usage requirements. The communication method is RS485 and standard Modbus protocol. It can be connected to a host computer for data processing, archiving, and display of polarization resistance, solution resistance, and corrosion rate curves (in this technical solution, the host computer is the corrosion monitoring module 230).

[0093] The corrosion monitoring module 230 receives and displays the data fed back by the electrochemical corrosion monitor 220, thereby realizing the quantitative and timed analysis and early warning functions of corrosion status on the water-side inner surface of carbon steel and aluminum materials.

[0094] The corrosion monitoring module 230 can download monitoring data from the electrochemical corrosion monitor 220, such as open circuit potential, corrosion current, polarization resistance, dielectric resistance, and corrosion rate, and save it to the database. The data output supports CSV format, and users can directly open the data file with software such as Excel for further processing. Alternatively, users can access the electrochemical corrosion monitor 220 with its built-in wireless communication module via the Internet and view the field data in real time through a browser on the host computer. The test data can be displayed in real time in a graphical manner, and the future corrosion situation can be predicted based on the corrosion rate development trend.

[0095] This technical solution uses a corrosion monitoring system 200 to monitor the metal corrosion rate of the circulating water, enabling monitoring of the corrosion rates of carbon steel and pure aluminum in the equipment. It can also calculate the equipment maintenance and replacement frequency based on the corrosion rate and issue early warnings when maintenance or replacement is imminent. Furthermore, this solution uses a bypass system 100 to purify the circulating water in the intercooled equipment, overcoming the limitation of SCAL-type intercooled circulation systems that cannot be equipped with water purification devices, effectively improving the heat transfer efficiency and service life of the circulating cooling water.

[0096] The electrochemical corrosion monitor 220 of this technical solution adopts the AC impedance measurement principle, and the measurement results are not affected by the resistance of the medium, thereby realizing stable measurement results and strong anti-interference ability of the corrosion monitoring system 200.

[0097] like Figure 1-5 As shown, the precision filtration assembly 110 includes: a filter water pipe 111, one end of which is connected to the existing valve at the intake point of the SCAL type intercooled circulating water main, and the other end of which is connected to the mixed bed treatment assembly 120; a booster pump 112, which is disposed on the filter water pipe 111; a linear polarization probe 210, which is disposed on the filter water pipe 111 and upstream of the booster pump 112; and a precision filter 113, which is disposed on the filter water pipe 111 and upstream of the booster pump 112. Downstream; a first pressure gauge 114, which is installed in the filter water pipe 111 and between the precision filter 113 and the booster pump 112; a metal rotor flow meter 115, which is installed in the filter water pipe 111 and downstream of the precision filter 113; a first drain pipe 116, one end of which is connected to the precision filter 113 and the other end of which is connected to an external sewage discharge space; and a first drain valve 117, which is installed in the sewage discharge pipe.

[0098] like Figure 1-5 As shown, the precision filter assembly 110 further includes: a first manual door 118, which is located upstream of the booster pump 112; a second manual door 119, which is located between the first pressure gauge 114 and the precision filter 113; and a check valve 1110, which is located between the booster pump 112 and the first pressure gauge 114.

[0099] In this embodiment, the specific flow path of the precision filter component 110 is as follows: circulating water enters the filter water pipe 111 from the main circulating water return header of the cooling fan section of the SCAL type indirect cooling equipment. After entering the filter water pipe 111, the circulating water flows sequentially through the corrosion monitoring system 200, the first manual door 118, the booster pump 112, the check valve 1110, the pressure gauge, the second manual door 119, and the precision filter 113.

[0100] Among them, the precision filter 113 has a normal output of 50 m3 / h, a design pressure of 0.6 MPa, a normal output pressure difference of 0.1 MPa, a maximum output pressure difference of 0.15 MPa, a filter element filtration accuracy of 5 μm, and uses 3 filter elements.

[0101] Among them, the booster pump 112 has a flow rate of 50 m3 / h and a head of 30 m.

[0102] The conductivity meter 1210 has a range of 0-20 μS / cm, 4-20 mA remote transmission, and comes with an instrument box.

[0103] Among them, the metal rotor flowmeter 115 has a flow range of 50m3 / h, DN80, and is made of 304 stainless steel.

[0104] In this technical solution, a precision filter 113 is used to filter solid impurities in the circulating water, a booster pump 112 provides power to the entire flow path system, a first pressure gauge 114 monitors the water pipe pressure, and the power of the booster pump 112 is adjusted based on the reading of the first pressure gauge 114.

[0105] The precision filter 113 is equipped with a first drain pipe 116 and a first drain door 117. The first drain door 117 is normally closed. When the equipment is flushed and drained, the first drain door 117 can be opened and the sewage can be discharged through the first drain pipe 116, thus eliminating the need for additional water intake and drainage and improving production efficiency.

[0106] like Figure 1-5As shown, the mixed bed treatment assembly 120 includes: a mixed bed inlet pipe 121, one end of which is connected to the filter water pipe 111; a first branch pipe 122, which is a three-way water pipe, with its first end connected to the mixed bed inlet pipe 121; a second pressure gauge 123, which is located at the second end of the first branch pipe 122; an inlet sampling port 124, located at the third end of the first branch pipe 122; a mixed bed body 125, the top of which is connected to the other end of the mixed bed inlet pipe 121; and a mixed bed product water pipe 126, one end of which is connected to the bottom of the mixed bed body 125, and the other end of which is connected to... The system includes: an existing valve connected to the SCAL type indirect cooling circulating water inlet header; a second branch pipe 127, which is a three-way water pipe, with its first end connected to the mixed bed product water pipe 126; a third pressure gauge 128, located at the second end of the second branch pipe 127; a product water sampling port 129, located at the third end of the second branch pipe 127; a conductivity meter 1210, located on the mixed bed product water pipe 126, downstream of the second branch pipe 127; and a resin trap 1211, located on the mixed bed product water pipe 126, downstream of the conductivity meter 1210.

[0107] like Figure 1-5As shown, the mixed bed treatment assembly 120 further includes: a third manual door 1213, which is located on the mixed water inlet pipe and upstream of the first branch pipe 122; a fourth manual door, which is located on the mixed bed product water pipe 126 and upstream of the second branch pipe 127; an exhaust pipe 1214, one end of which is located on the top of the mixed bed body 125 and the other end of which is connected to an external sewage discharge space; a fifth manual door 1215, which is located on the exhaust pipe 1214; and a sixth manual door 121... 6. A sixth manual valve 1216 is installed in the mixed bed permeate pipe 126, and the sixth manual valve 1216 is located between the conductivity meter 1210 and the resin trap 1211; a second drain pipe 1217 is connected at one end to the resin trap 1211 and at the other end to the external drain space; a seventh manual valve 1218 is installed in the second drain pipe 1217; an eighth manual valve 1219 is installed in the mixed bed permeate pipe 126 and is located downstream of the resin trap 1211.

[0108] In this embodiment, the specific flow path of the mixed bed treatment component 120 is as follows: one end of the mixed bed inlet pipe 121 is connected to the filter water pipe 111. After the circulating water enters the mixed bed inlet pipe 121, it flows sequentially through the third manual valve 1213 and the first branch pipe 122, and then enters the mixed bed body 125 through the other end of the mixed bed inlet pipe 121. The circulating water flows from the bottom of the mixed bed body 125 into the mixed bed product water pipe 126. After entering the mixed bed product water pipe 126, the circulating water flows sequentially through the fourth manual valve, the second branch pipe 127, the conductivity meter 1210, and the resin trap 1211. Finally, the mixed bed product water pipe 126 is connected to the cooling fan section main circulating water inlet header of the SCAL type indirect cooling equipment.

[0109] The mixed bed body 125 is equipped with an exhaust pipe 1214 at the top, and a fifth manual door 1215 is provided on the exhaust pipe 1214.

[0110] The mixed bed body 125 is made of carbon steel with a wall thickness of 6mm. The design pressure is 0.6MPa and the design temperature can withstand 70℃. The height of the cation resin layer is 500mm and the height of the anion resin layer is 1000mm. The normal operating pressure difference is 0.02MPa and the maximum output pressure difference is 0.05MPa.

[0111] Among them, the resin trap 1211 has an output of 50t / h, a body diameter of DN80, a design pressure of 0.6MPa, a filter element form of T-shaped wire winding, a filter element material of 316Lss, a gap of 0.25mm, and a body material of Q235.

[0112] This technical solution further treats the circulating water using a mixed bed body 125. The mixed bed, through the combined use of anion and cation exchange resins, deeply removes salts and other impurities from the water, resulting in high-purity circulating water. This effectively reduces the corrosiveness of the circulating water and slows down the corrosion rate of equipment. Simultaneously, this technical solution includes a resin trap 1211 to collect resin particles carried away by the water, preventing negative impacts from the mixed bed body 125 and further increasing the purity of the circulating water treated by the bypass system 100.

[0113] like Figure 1-5 As shown, the mixed bed treatment component 120 further includes a mixed bed regeneration component 130, which is disposed on the mixed bed body 125 and is used for acid and alkali regeneration of the resin in the mixed bed body 125.

[0114] In this technical solution, the mixed bed treatment component 120 is equipped with a mixed bed regeneration component 130, thereby eliminating the need to set up an external resin regeneration device on-site or elsewhere, improving the integration of the bypass system 100 and reducing the space occupied by the equipment.

[0115] like Figure 1-5 As shown, the mixed bed regeneration assembly 130 includes: a first drain pipe 131, one end of which is connected to the top of the mixed bed body 125, and the other end of which is connected to an external sewage discharge space; an alkali inlet 132, which is disposed on the mixed bed body 125; an acid inlet 133, which is disposed on the mixed bed product water pipe 126, and is disposed upstream of the second sewage discharge pipe 1217; and resin. A resin delivery port 134 is disposed on the mixed bed body 125; a second drain pipe 135 is connected at one end to the mixed bed body 125 and at the other end to an external sewage discharge space; a regenerated water pipe 136 is connected at one end to the precision filter assembly 110 and at the other end to the mixed bed product water pipe 126, and is connected between the acid inlet 133 and the second sewage discharge pipe 1217.

[0116] In this technical solution, the mixed bed regeneration assembly 130 includes a first drain pipe 131 and a second drain pipe 135, wherein the first drain pipe 131 is an upper drain pipe connected to the top of the mixed bed body 125, and the second drain pipe 135 is a middle drain pipe connected to the side wall of the roller bed body.

[0117] The first drain pipe 131 is connected to the filter water pipe 111, eliminating the need for additional interfaces on the mixed bed body 125, thus further improving the integration of the equipment.

[0118] Among them, the second sewage pipe 1217 is used for the drainage pipe during resin regeneration, which does not require separate installation and further improves the integration of the equipment.

[0119] like Figure 1-5 As shown, the mixed bed regeneration assembly 130 further includes: a ninth manual door 137, which is disposed on the first drain pipe 131; and a tenth manual door 138, which is disposed on the second drain pipe 135.

[0120] The mixed bed body 125 includes: a tank; internal pipelines; a rubber layer disposed inside the tank; a sight glass disposed at the maximum backwash expansion layer height and the lower filter media interface of the tank, the inner surface of the sight glass being flush with the inner surface of the mixed bed body 125; and a manhole disposed in the tank, the manhole having a manhole cover, a gasket, and a lifting rod, the inner surface of the manhole cover being flush with the inner surface of the tank.

[0121] In this technical solution, the inner surface of the mixed bed body 125 is lined with acid-resistant rubber for corrosion protection. The acid-resistant rubber lining has two layers, totaling 5mm. The lining extends to the joint surface between the tank body and the internal pipeline. The lining needs to pass a 15000V spark test to ensure there is no leakage.

[0122] In this technical solution, the sight glass is made of transparent and corrosion-resistant material, and its thickness must be able to withstand the design pressure of the container and the test pressure during the experiment. The inner surface of the sight glass is flush with the inner surface of the container, and the sight glasses are respectively arranged at: the maximum expansion layer height during backwashing and the lower filter media interface.

[0123] In this technical solution, the manhole is used to ensure the access of maintenance personnel and the replacement of parts. The inner surface of the manhole and manhole cover is flush with the inner surface of the container. The manhole is equipped with a complete set of components, including a manhole cover, washers, bolts, nuts, and lifting rods.

[0124] The tank body is connected to the internal pipeline via flanges; the water inlet, water collection and water distribution inlet of the internal pipeline are equipped with double-headed water caps.

[0125] In this technical solution, the mixed bed body 125 is connected to the internal pipeline by flanges. Considering the convenience of maintenance and component replacement, the materials of the internal components all meet the specified requirements, and the materials of fasteners, etc., should be equivalent to those of the internal pipes.

[0126] In this technical solution, the internal pipeline adopts a double-headed water cap, so that the water inlet, collection and distribution inside the equipment are uniform and there is no flow deviation.

[0127] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0128] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0129] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0130] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A SCAL-type intercooled circulating water corrosion monitoring and bypass treatment system, characterized in that, include: A bypass system is used to introduce circulating water from the SCAL type intercooling cycle, and after purification treatment, the circulating water is returned to the SCAL type intercooling cycle. The bypass system includes a precision filtration assembly and a mixed bed treatment assembly; A corrosion monitoring system is used to monitor the water quality at the inlet of the bypass system and to monitor the corrosion rate. The corrosion monitoring system includes a linear polarization probe, an electrochemical corrosion monitor, and a corrosion monitoring module. The linear polarization probe is positioned at the water inlet of the bypass system; The electrochemical corrosion monitor is electrically connected to the linear polarization probe, and the electrochemical corrosion monitor is used to read and monitor the parameters fed back by the linear polarization probe. The corrosion monitoring module is electrically connected to the electrochemical corrosion detector, and the corrosion monitoring module is used to monitor and calculate the parameters output by the electrochemical corrosion detector.

2. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 1, characterized in that, The precision filtration assembly includes: A filter water pipe, one end of which is connected to the existing valve at the intake point of the SCAL type intercooled circulating water main, and the other end of which is connected to the mixed bed treatment component. A booster pump, wherein the booster pump is installed in the filter water pipe; The linear polarization probe is disposed in the filter water pipe and is disposed upstream of the booster pump; A precision filter is installed in the water filter pipe and downstream of the booster pump; A first pressure gauge is installed in the filter water pipe and is located between the precision filter and the booster pump. A metal rotor flow meter is installed in the filter water pipe, and the metal rotor flow meter is located downstream of the precision filter; The first sewage pipe has one end connected to the precision filter and the other end connected to the external sewage discharge space. The first sewage discharge valve is installed in the sewage discharge pipe.

3. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 2, characterized in that, The precision filtration assembly also includes: The first manual door is located upstream of the booster pump; The second manual door is located between the first pressure gauge and the precision filter; A check valve is provided between the booster pump and the first pressure gauge.

4. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 1, characterized in that, The mixed bed processing assembly includes: A mixed bed inlet pipe, one end of which is connected to the filter water pipe; The first branch pipe is a three-way water pipe, and the first end of the first branch pipe is located at the mixed bed inlet pipe. A second pressure gauge is installed at the second end of the first branch pipe; A water inlet sampling port is located at the third end of the first branch pipe; The mixed bed body, the top of which is connected to the other end of the mixed bed inlet pipe; A mixed bed product water pipe, one end of which is connected to the bottom of the mixed bed body, and the other end of which is connected to the original valve of the SCAL type intercooled circulating water inlet header. The second branch pipe is a three-way water pipe, and the first end of the second branch pipe is located at the mixed bed product water pipe. The third pressure gauge is installed at the second end of the second branch pipe; A product water sampling port is provided at the third end of the second branch pipe; A conductivity meter is installed in the mixed bed permeate pipe, and the conductivity meter is installed downstream of the second branch pipe; A resin trap is provided in the mixed bed permeate pipe and is located downstream of the conductivity meter.

5. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 4, characterized in that, The mixed bed processing assembly further includes: The third manual valve is located on the mixing water inlet pipe and is located upstream of the first branch pipe; The fourth manual valve is located on the mixed bed permeate pipe and is located upstream of the second branch pipe; An exhaust pipe, one end of which is located at the top of the mixed bed body, and the other end of which is connected to an external sewage discharge space; The fifth manual door is located on the exhaust pipe; The sixth manual valve is located in the mixed bed permeate pipe and is positioned between the conductivity meter and the resin trap. The second drain pipe has one end connected to the resin trap and the other end connected to the external drain space. The seventh manual door is installed on the second sewage pipe; The eighth manual valve is located downstream of the mixed bed permeate pipe.

6. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 4, characterized in that, The mixed bed processing assembly further includes: A mixed bed regeneration component is disposed on the mixed bed body and is used for acid and alkali regeneration of the resin in the mixed bed body.

7. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 6, characterized in that, The mixed-bed regeneration assembly includes: The first drain pipe has one end connected to the top of the mixed bed body and the other end connected to the external sewage discharge space. Alkali inlet, wherein the alkali inlet is disposed on the mixed bed body; An acid inlet is provided, which is located in the mixed bed permeate pipe and upstream of the second drain pipe; A resin delivery port is disposed on the mixing bed body; The second drain pipe has one end connected to the mixed bed body and the other end connected to the external sewage discharge space. A regenerated water pipe, one end of which is connected to the precision filter assembly, and the other end of which is connected to the mixed bed permeate pipe and between the acid inlet and the second drain pipe.

8. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 7, characterized in that, The mixed-bed regeneration assembly also includes: The ninth manual door is installed on the first drain pipe; The tenth manual door is located on the second drain pipe.

9. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 4, characterized in that, The mixed bed body includes: Tank body; Internal piping; A rubber layer is disposed inside the tank body; A sight glass is provided at the maximum backwash expansion layer height and the lower filter media interface of the tank body, and the inner surface of the sight glass is flush with the inner surface of the mixed bed body. A manhole is provided in the tank body. The manhole has a manhole cover, a gasket, and a lifting rod. The inner surface of the manhole cover is flush with the inner surface of the tank body.

10. The SCAL type intercooled circulating water corrosion monitoring and bypass treatment system according to claim 9, characterized in that: The tank body is connected to the internal pipelines via flanges; The internal pipeline is equipped with double-headed water caps at the water inlet, water collection, and water distribution outlets.

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