Hydrogen conductivity table resin column regeneration mechanism based on color recognition and water vapor system

Abstract

The present invention discloses a hydrogen conductivity meter resin column regeneration mechanism, which comprises: a color sensor for detecting the color of a hydrogen conductivity meter resin column, generating a first signal when the color sensor detects a first color, and generating a second signal when the color sensor detects a second color; the regeneration device is used for providing regeneration liquid; the control device is electrically connected with the color sensor and the regeneration device; wherein the control device is communicated with the regeneration device and the hydrogen conductivity meter resin column according to a first signal, so that regenerated liquid flows to the hydrogen conductivity meter resin column; the control device disconnects the regeneration device and the hydrogen conductivity meter resin column according to the second signal. The invention further discloses a water vapor system adopting the hydrogen conductivity surface resin column regeneration mechanism. According to the technical scheme, the regeneration process of the hydrogen conductivity surface resin column is improved, and the labor cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power plant water quality detection, and particularly relates to a hydrogen conductivity meter resin column regeneration mechanism and a water vapor system suitable for thermal power plants and nuclear power plants. BACKGROUND

[0002] In the water vapor system, hydrogen conductivity is a core index reflecting the content of cation impurities in water, and is directly related to equipment corrosion prevention and control and safe operation of the unit. The existing hydrogen conductivity meter relies on ion exchange resin to remove ammonium ions, but has significant limitations: first, the hydrogen conductivity meter resin column needs to be replaced manually after failure, which not only consumes manpower, but also interrupts measurement during replacement; second, the residual regeneration liquid of the replaced hydrogen conductivity meter resin column will interfere with the measurement, and it takes more than 30 minutes to continuously flush to obtain real data, resulting in a long invalid state of the monitoring data; third, the failure of the hydrogen conductivity meter resin column is determined by manual observation, which is prone to lag, affecting the timeliness of monitoring. SUMMARY

[0003] The main purpose of the present application is to provide an intelligent system that can automatically determine the state of the resin and realize uninterrupted switching and regeneration.

[0004] To achieve the above purpose, one aspect of the present application provides a hydrogen conductivity meter resin column regeneration mechanism, which comprises:

[0005] A color sensor is used to detect the color of the hydrogen conductivity meter resin column. The color sensor generates a first signal when it detects a first color, and generates a second signal when it detects a second color;

[0006] A regeneration device is used to provide a regeneration liquid;

[0007] A control device is electrically connected to the color sensor and the regeneration device;

[0008] The control device connects the regeneration device and the hydrogen conductivity meter resin column according to the first signal, so that the regeneration liquid flows to the hydrogen conductivity meter resin column;

[0009] The control device disconnects the regeneration device and the hydrogen conductivity meter resin column according to the second signal.

[0010] Further, the hydrogen conductivity meter resin column regeneration mechanism further comprises:

[0011] A telescopic rod is used to install the color sensor and adjust the relative position between the color sensor and the hydrogen conductivity meter resin column;

[0012] A light shield is used to cover the detected area of the color sensor and the hydrogen conductivity meter resin column.

[0013] Further, the regeneration device comprises:

[0014] A liquid storage tank for containing a hydrochloric acid solution;

[0015] A multi-channel electromagnetic valve for opening and closing the communication between the liquid storage tank and the hydrogen conductivity meter resin column;

[0016] The control device is used to open and close the multiple valve paths of the multi-channel electromagnetic valve.

[0017] Another aspect of the present application provides a water vapor system, which comprises the hydrogen conductivity meter resin column regeneration mechanism as described above, and;

[0018] The first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column are respectively provided with color sensors.

[0019] A water supply device, which is in communication with the first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column through the multi-channel electromagnetic valve, and which provides a water sample to the first hydrogen conductivity meter resin column or the second hydrogen conductivity meter resin column under the control of the control device;

[0020] When the corresponding color sensor of the first hydrogen conductivity meter resin column in communication with the water supply device generates a first signal, the control device causes the regeneration device to be in communication with the first hydrogen conductivity meter resin column and causes the water supply device to be in communication with the second hydrogen conductivity meter resin column according to the first signal.

[0021] Further, the water vapor system further comprises:

[0022] A flushing device for providing a flushing liquid, which is in communication with the first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column through the multi-channel electromagnetic valve;

[0023] A conductivity sensor for detecting the conductivity of the flushing liquid after flushing the hydrogen conductivity meter resin column;

[0024] A timing device for recording the working time of the flushing device;

[0025] Before the control device causes the water supply device to be in communication with the second hydrogen conductivity meter resin column according to the first signal, the control device causes the flushing device and the second hydrogen conductivity meter resin column to be in communication to flush the second hydrogen conductivity meter resin column.

[0026] When the conductivity value detected by the conductivity sensor for three consecutive times is less than 0.1 μS / cm, and the working time of the flushing device recorded by the timing device is greater than or equal to 5 minutes, the control device disconnects the flushing device from the second hydrogen conductivity meter resin column, and then causes the water supply device to be in communication with the second hydrogen conductivity meter resin column.

[0027] Compared with related technologies, in the hydrogen conductivity meter resin column regeneration mechanism of the present invention, the failure status of the hydrogen conductivity meter resin column is monitored by a color sensor. When the hydrogen conductivity meter resin column fails and changes to the first color, the hydrogen conductivity meter resin column regeneration device is immediately activated. Therefore, the failed hydrogen conductivity meter resin column can be regenerated in a timely manner without manual intervention, saving labor costs.

[0028] Furthermore, the water-gas system of the present invention adopts a dual-hydrogen conductivity meter resin column design. When one of the hydrogen conductivity meter resin columns fails, the above-mentioned regeneration mechanism is activated, and the other hydrogen conductivity meter resin column is connected to the water supply device, thereby ensuring the stable operation of the power plant. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the water vapor system according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] First hydrogen conductivity meter resin column 1-A; Second hydrogen conductivity meter resin column 1-B; Multi-channel solenoid valve 2; Flushing device 3; Regeneration device 4; Color sensor 5; Variable frequency pump 6; Conductivity sensor 7; Light shield 9; Telescopic rod 10; Wastewater recycling tank 11; Control device 12; Water supply device 13.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, top, bottom, side, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0036] Furthermore, the descriptions involving "first," "second," etc., in the embodiments of the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0037] To address the technical deficiencies in related technologies, this embodiment provides a regeneration mechanism for a hydrogen conductivity meter resin column. This mechanism includes a color sensor, a regeneration device, and a control device. Optionally, the control device is a programmable logic controller (PLC). The control device is electrically connected to the color sensor and the regeneration device. The regeneration device provides the regeneration solution, while the control device controls the regeneration device and receives electrical signals transmitted from the color sensor.

[0038] The color sensor is used to detect the color of the resin column of the hydrogen conductivity meter. The resin column is orange-yellow when functional and dark brown when nearing failure. Utilizing this characteristic of the hydrogen conductivity meter resin column, the color sensor is configured to generate a first signal when dark brown is detected and a second signal when orange-yellow is detected.

[0039] When the color sensor transmits the first signal to the control device, it means that the hydrogen conductivity meter resin column is about to fail. Therefore, the control device connects the regeneration device and the hydrogen conductivity meter resin column, so that the regeneration liquid flows to the hydrogen conductivity meter resin column to regenerate the hydrogen conductivity meter resin column.

[0040] After sufficient regeneration, the hydrogen conductivity meter resin column will turn orange-yellow. At this point, the color sensor transmits a second signal to the control device, disconnecting the connection between the regeneration device and the hydrogen conductivity meter resin column, thus ending the regeneration process of the hydrogen conductivity meter resin column.

[0041] In the hydrogen conductivity meter resin column regeneration mechanism of this embodiment, the failure status of the hydrogen conductivity meter resin column is monitored by a color sensor. When the hydrogen conductivity meter resin column fails and changes to the first color, the hydrogen conductivity meter resin column regeneration device is immediately activated. Thus, the failed hydrogen conductivity meter resin column can be regenerated in a timely manner without manual intervention, saving labor costs.

[0042] Furthermore, the hydrogen conductivity meter resin column regeneration mechanism in this embodiment also includes a telescopic rod and a light shield. The telescopic rod is used to mount the color sensor and adjust the relative position between the color sensor and the hydrogen conductivity meter resin column. Operators adjust the relative position between the color sensor and the hydrogen conductivity meter resin column using the telescopic rod according to actual testing needs. The light shield covers the tested area of ​​the color sensor and the hydrogen conductivity meter resin column to reduce interference from external light sources and improve the detection accuracy of the color sensor.

[0043] Furthermore, the regeneration device includes a storage tank and a multi-channel solenoid valve. A control device is also used to open and close multiple channels of the multi-channel solenoid valve. The storage tank is used to contain hydrochloric acid solution for the regeneration treatment of the hydrogen conductivity meter resin column. The multi-channel solenoid valve is used at least to open and close the connection between the storage tank and the hydrogen conductivity meter resin column. In addition, the control device is also used to open and close multiple valve paths of the multi-channel solenoid valve.

[0044] This embodiment also discloses a water vapor system employing the aforementioned hydrogen conductivity meter resin column regeneration mechanism, such as... Figure 1 As shown, the water vapor system of this embodiment includes the above-mentioned hydrogen conductivity meter resin column regeneration mechanism, and a first hydrogen conductivity meter resin column 1-A, a second hydrogen conductivity meter resin column 1-B and a water supply device 13 combined with the regeneration mechanism.

[0045] The first hydrogen conductivity meter resin column 1-A and the second hydrogen conductivity meter resin column 1-B are respectively equipped with color sensors 5. The color sensors 5 are adjusted relative to the corresponding hydrogen conductivity meter resin columns by means of telescopic rods 10. The light shield 9 is used to cover the detection area of ​​the color sensors 5 and the hydrogen conductivity meter resin columns.

[0046] The water supply device 13 is connected to the first hydrogen conductivity meter resin column 1-A and the second hydrogen conductivity meter resin column 1-B via a multi-channel solenoid valve 2. Under the control of the control device 12, the water supply device 13 can selectively supply water samples to either the first hydrogen conductivity meter resin column 1-A or the second hydrogen conductivity meter resin column 1-B.

[0047] It should be noted that, of the first hydrogen conductivity meter resin column 1-A and the second hydrogen conductivity meter resin column 1-B, one of them is connected to the water supply device 13 and is in working condition, while the other of them is disconnected from the water supply device 13 and is in standby condition.

[0048] For example, when the color sensor 5 corresponding to the first hydrogen conductivity meter resin column 1-A, which is connected to the water supply device 13, generates a first signal, the control device 12 connects the regeneration device 4 to the first hydrogen conductivity meter resin column 1-A according to the first signal, so as to start the regeneration process of the first hydrogen conductivity meter resin column 1-A. Furthermore, for the stable operation of the power plant, the control device 12 also connects the water supply device 13 to the second hydrogen conductivity meter resin column 1-B, so that the water sample flows to the second hydrogen conductivity meter resin column 1-B.

[0049] Furthermore, the hydrogen conductivity meter resin column in standby mode needs to be desalinated before use, so it needs to be rinsed with desalinated water. Therefore, the water vapor system in this embodiment also includes a rinsing device 3, a conductivity sensor 7, and a timing device.

[0050] The rinsing device 3 is used to provide rinsing fluid. The rinsing device 3 is connected to the first hydrogen conductivity meter resin column 1-A and the second hydrogen conductivity meter resin column 1-B through a multi-channel solenoid valve 2. The conductivity sensor 7 is used to detect the conductivity of the rinsing fluid after rinsing the hydrogen conductivity meter resin columns, and the timing device is used to record the working time of the rinsing device 3.

[0051] For example, when the first hydrogen conductivity meter resin column 1-A is in working state and the second hydrogen conductivity meter resin column 1-B is in standby state, if the control device 12 receives a first signal transmitted by the color sensor 5 corresponding to the first hydrogen conductivity meter resin column 1-A, in order to desalinate the second hydrogen conductivity meter resin column 1-B, before connecting the water supply device 13 to the second hydrogen conductivity meter resin column 1-B according to the first signal, the control device 12 connects the rinsing device 3 to the second hydrogen conductivity meter resin column 1-B to rinse the second hydrogen conductivity meter resin column 1-B.

[0052] For example, when the conductivity value detected by the conductivity sensor 7 for three consecutive times is <0.1μS / cm, and the working time of the rinsing device 3 recorded by the timing device is ≥5 minutes, the control device 12 disconnects the rinsing device 3 from the resin column 1-B of the second hydrogen conductivity meter, and then reconnects the water supply device 13 to the resin column 1-B of the second hydrogen conductivity meter.

[0053] The following combination Figure 1 This describes the working process of the water vapor system in this embodiment.

[0054] Reference Figure 1 As shown, under normal operating conditions, when the first hydrogen conductivity meter resin column 1-A is working, the first valve 8-5 is opened, and the multi-channel solenoid valve 2 is set to connect the water supply device 13 and the first hydrogen conductivity meter resin column 1-A. Thus, the water sample from the water supply device 13 enters the hydrogen conductivity meter after being processed by the first hydrogen conductivity meter resin column 1-A. The second hydrogen conductivity meter resin column 1-B is in standby mode. During this process, the color sensor 5 corresponding to the first hydrogen conductivity meter resin column 1-A detects the color change of the first hydrogen conductivity meter resin column 1-A in real time.

[0055] During the failure warning and pre-rinsing phases, when the color sensor 5 corresponding to the first hydrogen conductivity meter resin column 1-A detects that the color of the first hydrogen conductivity meter resin column 1-A has turned dark brown, the pre-rinsing of the second hydrogen conductivity meter resin column 1-B is immediately initiated. The control device 12 opens the second valve 8-1 and the third valve 8-8 to connect the rinsing device 3 and the second hydrogen conductivity meter resin column 1-B, allowing the second hydrogen conductivity meter resin column 1-B to be rinsed with rinsing fluid, which is transferred to the second hydrogen conductivity meter resin column 1-B via the variable frequency pump 6. The rinsing fluid used to rinse the second hydrogen conductivity meter resin column 1-B is collected in the wastewater recovery tank 11. The conductivity sensor 7 detects the conductivity of the rinsing fluid in the wastewater recovery tank 11, and the timing device begins recording the operating time of the rinsing device 3. When the conductivity value detected by the conductivity sensor 7 for three consecutive times is <0.1μS / cm, and the working time of the rinsing device 3 recorded by the timing device is ≥5 minutes, the control device 12 closes the second valve 8-1 and the third valve 8-8, and disconnects the rinsing device 3 from the resin column 1-B of the second hydrogen conductivity meter.

[0056] During the switching and regeneration phase, control device 12 opens the fourth valve 8-6 and controls the multi-channel solenoid valve 2 to connect the water supply device 13 with the second hydrogen conductivity meter resin column 1-B, putting the second hydrogen conductivity meter resin column 1-B into working condition. After the second hydrogen conductivity meter resin column 1-B switches to working condition, control device 12 will close the first valve 8-5.

[0057] Subsequently, control device 12 opens the fifth valve 8-2 and the sixth valve 8-4, connecting the first hydrogen conductivity meter resin column 1-A to the regeneration device 4. The first hydrogen conductivity meter resin column 1-A is then regenerated using hydrochloric acid solution, which is pumped to the first hydrogen conductivity meter resin column 1-A via frequency converter pump 6. When the color sensor 5 corresponding to the first hydrogen conductivity meter resin column 1-A detects that the first hydrogen conductivity meter resin column 1-A has completely turned orange-yellow, thus transmitting a second signal to control device 12, control device 12 closes the fifth valve 8-2 and the sixth valve 8-4, ending the regeneration process of the first hydrogen conductivity meter resin column 1-A. Afterward, the first hydrogen conductivity meter resin column 1-A enters a standby state.

[0058] Therefore, the water-gas system in this embodiment adopts a dual-hydrogen conductivity meter resin column design, so that the first hydrogen conductivity meter resin column 1-A and the second hydrogen conductivity meter resin column 1-B are in a cyclical working state and a standby state. When one of the hydrogen conductivity meter resin columns fails, the above-mentioned regeneration mechanism is activated, and the other hydrogen conductivity meter resin column is connected to the water supply device 13, thereby ensuring the stable operation of the power plant.

[0059] The above description is only a part or preferred embodiment of the present invention. Neither the text nor the drawings should limit the scope of protection of the present invention. All equivalent structural transformations made using the content of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A regeneration mechanism for a hydrogen conductivity meter resin column, characterized in that, include: A color sensor is used to detect the color of the resin column of the hydrogen conductivity meter. When the color sensor detects a first color, it generates a first signal, and when the color sensor detects a second color, it generates a second signal. A regeneration device for providing regeneration solution; The control device is electrically connected to the color sensor and the reproduction device; The control device connects the regeneration device and the hydrogen conductivity meter resin column according to the first signal, so that the regenerated liquid flows to the hydrogen conductivity meter resin column. The control device disconnects the regeneration device and the hydrogen conductivity meter resin column according to the second signal.

2. The hydrogen conductivity meter resin column regeneration mechanism according to claim 1, characterized in that, Also includes: A telescopic rod is used to install the color sensor and to adjust the relative position between the color sensor and the hydrogen conductivity meter resin column. A light shield is used to cover the detection area of ​​the color sensor and the resin column of the hydrogen conductivity meter.

3. The hydrogen conductivity meter resin column regeneration mechanism according to claim 1 or 2, characterized in that, The regeneration device includes: Storage tank for holding hydrochloric acid solution; A multi-channel solenoid valve is used to open or close the connection between the liquid storage tank and the hydrogen conductivity meter resin column. The control device is used to open and close multiple valve paths of the multi-channel solenoid valve.

4. A water vapor system, characterized in that, Including the hydrogen conductivity meter resin column regeneration mechanism as described in claim 3, and; The first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column are respectively equipped with the color sensor. The water supply device is connected to the first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column through the multi-channel solenoid valve. Under the control of the control device, the water supply device provides water samples to the first hydrogen conductivity meter resin column or the second hydrogen conductivity meter resin column. When the color sensor corresponding to the first hydrogen conductivity meter resin column connected to the water supply device generates a first signal, the control device connects the regeneration device to the first hydrogen conductivity meter resin column and the water supply device to the second hydrogen conductivity meter resin column according to the first signal.

5. The water vapor system according to claim 4, characterized in that, Also includes: A rinsing device for providing rinsing fluid, the rinsing device being connected to the first hydrogen conductivity meter resin column and the second hydrogen conductivity meter resin column via the multi-channel solenoid valve; A conductivity sensor is used to detect the conductivity of the flushing fluid after rinsing the hydrogen conductivity meter resin column; A timing device for recording the operating time of the rinsing device; Before the control device connects the water supply device to the second hydrogen conductivity meter resin column according to the first signal, the control device connects the flushing device to the second hydrogen conductivity meter resin column to flush the second hydrogen conductivity meter resin column. When the conductivity value detected by the conductivity sensor for three consecutive times is <0.1μS / cm, and the working time of the flushing device recorded by the timing device is ≥5 minutes, the control device disconnects the flushing device from the resin column of the second hydrogen conductivity meter, and then reconnects the water supply device to the resin column of the second hydrogen conductivity meter.

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