A wireless transmission system for monitoring the corrosion of drum filters

Abstract

The invention discloses a wireless transmission system for anti-corrosion monitoring of a drum filter, comprising: a drum filter, a reference electrode, a wireless potential detector, a wireless charging transmitter, a wireless charging receiver and a fixed disk; the fixed disk is fixedly connected to a rotating shaft, and the wireless potential detector and the wireless charging receiver are arranged on the fixed disk; the reference electrode is fixed to the drum filter, the reference electrode is connected to the wireless potential detector signal, the rotating shaft drives the drum filter to rotate, and the fixed disk and the drum filter are relatively stationary; the wireless charging transmitter is arranged on a first supporting seat supporting the rotating shaft, and when the drum filter rotates, the wireless charging transmitter moves relative to the fixed disk; the invention wirelessly transmits parameters collected by the reference electrode to a remote terminal through the wireless potential detector, and wirelessly charges the wireless potential detector through the wireless charging transmitter and the wireless charging receiver. The invention has the advantages of low cost, short construction period, flexible networking and good scalability.

Description

Technical Field

[0001] The invention relates to the field of anti-corrosion of drum filter screens of nuclear power cooling units, and in particular to a wireless transmission system for anti-corrosion monitoring of drum filter screens. Background Art

[0002] The drum filter is the main filtering equipment of the circulating cooling water system of the nuclear power plant. It is used to filter debris, silt and larger marine organisms in seawater. It is an important auxiliary system and cold source guarantee of the nuclear power plant. The drum filter consists of a main shaft, bearings, a drum filter frame, a stainless steel mesh, a sealing device, a backwashing device, a drive device, a control system, a pressure difference monitoring system and a cathodic protection system. The anti-corrosion measures of the drum filter mainly adopt the method of combined protection of cathodic protection and anti-corrosion coatings, and the corrosion margin reserved in the additional drum filter structure design is used to ensure that its design service life meets the service requirements. The drum filter has been in service in the seawater environment for a long time. Once corrosion occurs, it is not only difficult to repair and has a long construction period, but also leads to the reduction of the filtration efficiency of the seawater filtration system and the clogging of the circulating cooling water pipeline by marine organisms, which seriously threatens the safe operation of the unit. Therefore, it is of great significance to carry out long-term and effective monitoring of the protection effect of the rotating filter. In the prior art, because the rotating filter is in a rotating state, the reference electrode can only be fixedly installed in the water pool to monitor the filter potential from a distance. However, due to the long monitoring distance and the continuous alternation of dry and wet monitored surface as the filter rotates, the monitoring potential data is inaccurate and cannot reflect the anti-corrosion status of a specified point on the filter. Summary of the invention

[0003] The present invention provides a wireless transmission system for monitoring the corrosion prevention of a drum filter to overcome the above technical problems.

[0004] The present invention provides a wireless transmission system for monitoring the corrosion protection of a drum filter, comprising: a drum filter, a reference electrode, a wireless potential detector, a wireless charging transmitting end, a wireless charging receiving end and a fixing plate;

[0005] The fixed disk is fixedly connected to one end of the rotating shaft, and the wireless potential detector and the wireless charging receiving end are arranged on the fixed disk; the reference electrode is fixed on the drum filter, and the reference electrode is connected to the signal of the wireless potential detector. The rotating shaft drives the drum filter to rotate, and the fixed disk and the drum filter are relatively stationary; the wireless charging transmitting end is arranged on the first supporting seat supporting the rotating shaft, and when the drum filter rotates, the wireless charging transmitting end and the fixed disk move relative to each other.

[0006] Furthermore, the fixed disk is annular and sleeved on the rotating shaft, and the wireless potential detector is arranged on a side of the fixed disk close to the drum filter.

[0007] Furthermore, it also includes: a transmitting antenna, and the transmitting antenna is signal-connected to the wireless potential detector.

[0008] Furthermore, the wireless charging receiving end is a coil, which is arranged on a side of the fixed disk away from the drum filter. The wireless charging receiving end is arranged around the rotating shaft, and the wireless charging transmitting end and the wireless charging receiving end are located on the same side of the fixed disk.

[0009] Furthermore, it also includes: a second support base, the second support base is arranged on the first support base, and the wireless charging transmitter is arranged on the second support base, so that the wireless charging transmitter is opposite to the annular surface of the fixed disk.

[0010] Furthermore, there are multiple reference electrodes, which are respectively arranged at different positions on the edge of the drum filter.

[0011] The present invention wirelessly transmits the parameters collected by the reference electrode to the remote terminal through the wireless potential detector, and wirelessly charges the wireless potential detector through the wireless charging transmitter and the wireless charging receiver. The present invention has the advantages of low cost, short construction period, flexible networking and good scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0014] Figure 2 is a front view of an embodiment of the present invention;

[0015] Figure 3 is a side view of an embodiment of the present invention;

[0016] Figure 4 2 is a top view of an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention provides a wireless transmission system for monitoring the corrosion of drum filter screens, such as Figure 1 As shown, it includes: a drum filter 1, a reference electrode 2, a wireless potential detector 5, a wireless charging transmitter 3, a wireless charging receiver 4 and a fixed plate 7;

[0019] The fixed disk 7 is fixedly connected to one end of the rotating shaft 1.2, and the wireless potential detector 5 and the wireless charging receiving terminal 4 are arranged on the fixed disk 7; the reference electrode 2 is fixed on the drum filter 1, and the reference electrode 2 is signal-connected to the wireless potential detector 5. The rotating shaft 1.2 drives the drum filter 1 to rotate, and the fixed disk 7 and the drum filter 1 are relatively stationary; the wireless charging transmitting terminal 3 is arranged on the first supporting seat 8 supporting the rotating shaft 1.2. When the drum filter 1 rotates, the wireless charging transmitting terminal 3 and the fixed disk 7 move relative to each other.

[0020] Specifically, the drum filter 1 is fixed on the rotating shaft 1.2, the end of the rotating shaft 1.2 is arranged on the first supporting seat 8, the fixed disk 7 is fixed on the rotating shaft 1.2, and the fixed disk 7 is relatively stationary with the drum filter 1; the wireless potential detector 5 and the wireless charging receiving end 4 are both fixed on the fixed disk 7, and the rotating shaft 1.2 drives the drum filter 1 and the fixed disk 7 to rotate, and the reference electrode 2 is a double reference electrode containing silver chloride and high-purity zinc electrodes; the reference electrode 2 is fixed on the drum filter 1 and connected to the wireless potential detector 5 through a cable, and the cable can be fixed on the spoke 1.1 of the drum filter 1 to prevent the cable from swinging when the drum filter 1 rotates. The wireless charging transmitter 3 is arranged on the first supporting seat 8, and when the drum filter 1 rotates, the wireless charging transmitter 3 and the fixed disk 7 move relative to each other.

[0021] The wireless potential detector 5 measures the corrosion potential of the reference electrode 2 and compares it with the set potential advance, thereby determining the corrosion condition of the drum filter 1; Figure 2As shown, the power supply 10 supplies power to the wireless charging transmitter 3, the wireless charging transmitter 3 sends power to the wireless charging receiver 4 (the method of sending power is a prior art, which is not the invention point of the present application and will not be described here), and the wireless charging receiver 4 supplies power to the wireless potential detector 5 to enable it to work normally.

[0022] Furthermore, the fixing plate 7 is annular and sleeved on the rotating shaft 1 . 2 , and the wireless potential detector 5 is arranged on a side of the fixing plate 7 close to the drum filter 1 .

[0023] Specifically, the annular fixed disk 7 is easy to manufacture and install. After being sleeved on the rotating shaft 1.2, it can be driven by the rotating shaft 1.2 to rotate synchronously with the drum filter 1; the wireless potential detector 5 is close to the drum filter 1, that is, close to the reference electrode 2, avoiding cumbersome wiring when far away from the reference electrode 2.

[0024] Furthermore, it also includes: a transmitting antenna 6, and the transmitting antenna 6 is signal-connected to the wireless potential detector 5.

[0025] Specifically, the transmitting antenna 6 sends the collected corrosion potential measurement of the reference electrode 2 to a remote server through the transmitting antenna 6 arranged thereon, so that the operator can remotely monitor the corrosion condition of the drum filter 1 in real time.

[0026] Furthermore, the wireless charging receiving end 4 is a coil, which is arranged on a side of the fixed disk 7 away from the drum filter 1 , and the wireless charging receiving end 4 is arranged around the rotating shaft 1.2 , and the wireless charging transmitting end 3 and the wireless charging receiving end 4 are located on the same side of the fixed disk 7 .

[0027] Specifically, as shown in the figure, the wireless charging receiving terminal 4 is a coil, and the number of coil turns can be increased or decreased according to the actual power requirement of the wireless potential detector 5. The coil is arranged around the rotating shaft 1.2 and covers the entire fixed disk 7. The wireless charging transmitting terminal 3 is located on the side of the fixed disk 7 away from the drum filter 1. When the drum filter 1 rotates, the wireless charging transmitting terminal 3 can continuously send electrical energy to the wireless charging receiving terminal 4, thereby providing support for the reliability of the detection data.

[0028] Furthermore, in order to more stably fix the wireless charging transmitter 3, it also includes: a second support base 9, the second support base 9 is arranged on the first support base 8, and the wireless charging transmitter 3 is arranged on the second support base 9, so that the wireless charging transmitter 3 is opposite to the annular surface of the fixed disk 7.

[0029] Furthermore, due to the influence of manufacturing or environmental factors, different parts of the drum filter 1 have different degrees of corrosion. In order to be able to timely monitor the corrosion status of various parts of the drum filter 1 in real time, as shown in the figure, there are multiple reference electrodes 2, which are respectively arranged at different positions on the edge of the drum filter 1.

[0030] The present invention wirelessly transmits the parameters collected by the reference electrode to the remote terminal through the wireless potential detector, and wirelessly charges the wireless potential detector through the wireless charging transmitter and the wireless charging receiver. The present invention has the advantages of low cost, short construction period, flexible networking and good scalability.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wireless transmission system for monitoring the corrosion of drum filters, characterized in that: include: A drum filter (1), a reference electrode (2), a wireless potential detector (5), a wireless charging transmitter (3), a wireless charging receiver (4) and a fixed plate (7); The fixed disk (7) is fixedly connected to one end of the rotating shaft (1.2); the wireless potential detector (5) and the wireless charging receiving end (4) are arranged on the fixed disk (7); the reference electrode (2) is fixed on the drum filter (1); the reference electrode (2) is connected to the wireless potential detector (5) by signal via a cable; the cable is fixed on the spokes (1.1) of the drum filter (1); the rotating shaft (1.2) drives the drum filter (1) to rotate; The fixed disk (7) and the drum-shaped filter (1) are relatively stationary; the wireless charging transmitter (3) is arranged on a first support seat (8) supporting the rotating shaft (1.2); when the drum-shaped filter (1) rotates, the wireless charging transmitter (3) and the fixed disk (7) move relative to each other; the fixed disk (7) is annular and sleeved on the rotating shaft (1.2); the wireless potential detector (5) is arranged on a side of the fixed disk (7) close to the drum-shaped filter (1); The wireless charging receiving end (4) is a coil, which is arranged on a side of the fixed disk (7) away from the drum filter (1), the wireless charging receiving end (4) is arranged around the rotating shaft (1.2), and the wireless charging transmitting end (3) and the wireless charging receiving end (4) are located on the same side of the fixed disk (7); It also includes: a second support base (9), the second support base (9) is arranged on the first support base (8), and the wireless charging transmitter (3) is arranged on the second support base (9), so that the wireless charging transmitter (3) is opposite to the annular surface of the fixed disk (7).

2. The system according to claim 1, characterized in that Also includes: A transmitting antenna (6), the transmitting antenna (6) is signal-connected to the wireless potential detector (5).

3. The system according to claim 1, characterized in that There are multiple reference electrodes (2), which are respectively arranged at different positions on the edge of the drum-shaped filter screen (1).

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