CN214270304U - Simple and convenient decide two bed processing apparatus of cold water bypass - Google Patents
Simple and convenient decide two bed processing apparatus of cold water bypass Download PDFInfo
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- CN214270304U CN214270304U CN202022784103.5U CN202022784103U CN214270304U CN 214270304 U CN214270304 U CN 214270304U CN 202022784103 U CN202022784103 U CN 202022784103U CN 214270304 U CN214270304 U CN 214270304U
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Abstract
The embodiment of the utility model discloses two bed processing apparatus of simple and convenient definite cold water bypass, include that decide cold water pump, total flowmeter, bypass teletransmission flowmeter, first, second electromagnetism open valve, first, second teletransmission flowmeter soon, mix bed, sodium bed, first, second, third electromagnetism flow control valve, the main loop line has bypass interface, lower bypass interface, supreme bypass interface is connected to first electromagnetism flow control valve, bypass teletransmission flowmeter one end, one end with first, second electromagnetism open valve soon is connected, the entry that mixes bed, sodium bed passes through respectively first teletransmission flowmeter, second teletransmission flowmeter with first, second electromagnetism open valve is connected, and the export is connected to through second, third electromagnetism flow control valve respectively bypass interface down. Adopt the utility model discloses, make its flow and decide cooling water system circulation flow directly proportional through control flap, through the distribution of two way flows of automatically regulated, reach the purpose of control quality of water.
Description
Technical Field
The utility model relates to a power plant's generator stator device especially relates to a simple and convenient two bed processing apparatus of cold water bypass surely.
Background
The stator of the generator in the power plant is generally cooled by water, and when the quality of stator cooling water (hereinafter referred to as 'stator cooling water') is unqualified, the insulation of the generator is possibly unqualified, so that an electrical fault is caused; and the blockage caused by corrosion and scaling of the stator wire copper can also cause local overheating, thus threatening the safe operation of the unit. So the control of the quality of the cold water is particularly important.
At present, different methods are used for controlling the quality of the fixed cold water, such as supplementing desalted water and condensed water to a fixed cold water tank, adding trace alkali to the fixed cold water, and the like. It is more common to use a fixed cold water bypass mixed bed treatment. The method is characterized in that a small part of the chilled water is treated by a mixed bed mixed with sodium resin, hydrogen resin and oxyhydrogen resin and then converged to a main path of the chilled water.
The main problems with such devices are: the mixing ratio of the three types of resins is fixed, and the formula is mastered by a product developer. The water quality of the water to be supplemented of different generator water cooling systems is different, and the water quality of the water to be supplemented may be unqualified when the water is treated by the resin mixed bed with the same proportion.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides a simple and convenient two bed processing apparatus of decide cold water bypass. The controllability of the quality of the fixed cold water can be realized.
In order to solve the technical problem, the embodiment of the utility model provides a simple and convenient two bed processing apparatus of cold water bypass surely, including deciding cold water pump, total flowmeter, first electromagnetic flow control valve, bypass teletransmission flowmeter, first electromagnetism quick-open valve, second electromagnetism quick-open valve, first teletransmission flowmeter, second teletransmission flowmeter, mixed bed, sodium bed, second electromagnetic flow control valve, third electromagnetic flow control valve, decide cold water pump, total flowmeter and main circulation pipeline and establish ties to the cooling channel of generator, cooling channel's end is provided with online conductivity table, online PH table, the main circulation pipeline has upper bypass interface, lower bypass interface, first electromagnetic flow control valve, bypass teletransmission flowmeter one end are connected to upper bypass interface, one end with first electromagnetism quick-open valve, second electromagnetism quick-open valve are connected, mixed bed, The inlet of the sodium bed is connected with the first electromagnetic quick-opening valve and the second electromagnetic quick-opening valve through the first remote-transmission flowmeter and the second remote-transmission flowmeter respectively, and the outlet of the sodium bed is connected to the lower bypass interface through the second electromagnetic flow regulating valve and the third electromagnetic flow regulating valve respectively.
The top of the mixing bed and the top of the sodium bed are both connected with an air-discharging electromagnetic quick-opening valve.
And the bottoms of the mixing bed and the sodium bed are both connected with a drainage electromagnetic flow regulating valve.
Outlets at the bottoms of the mixed bed and the sodium bed are respectively connected with an online conductivity meter and an online pH meter.
And a resin catcher is arranged between the lower bypass interface and the second electromagnetic flow regulating valve and between the lower bypass interface and the third electromagnetic flow regulating valve.
Still include PLC system controller, PLC system controller with decide cold water pump, total flowmeter, first electromagnetic flow control valve, bypass teletransmission flowmeter, first electromagnetism quick-open valve, second electromagnetism quick-open valve, first teletransmission flowmeter, second electromagnetic flow control valve, third electromagnetic flow control valve, row's air electromagnetism quick-open valve, drainage electromagnetic flow control valve, online conductivity table, online PH table electricity are connected.
Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses a control flap makes its flow directly proportional with decide cooling water system circulation flow. The part of the fixed cold water flows through the mixed bed and the sodium bed simultaneously, and the aim of controlling the water quality is achieved by automatically adjusting the distribution of two paths of flow.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a simple and convenient two bed processing apparatus of cold water bypass surely, including surely cold water pump 1, total flowmeter 2, first electromagnetic flow control valve 3, bypass teletransmission flowmeter 4, first electromagnetism quick-open valve 5, second electromagnetism quick-open valve 6, first teletransmission flowmeter 7, second teletransmission flowmeter 8, mixed bed 9, sodium bed 10, second electromagnetic flow control valve 11, third electromagnetic flow control valve 12, surely cold water pump 1, total flowmeter 2 and main circulation pipeline 30 are established ties to the cooling channel of generator, the end of cooling channel is provided with online conductivity table 20, online PH table 21, main circulation pipeline 30 has last bypass interface 31, lower bypass interface 32, first electromagnetic flow control valve 3, bypass teletransmission flowmeter 4 one end are connected to last bypass interface 31, one end with first electromagnetism quick-open valve 5, second electromagnetism quick-open valve connect 6, inlets of the mixed bed 9 and the sodium bed 10 are respectively connected with the first electromagnetic quick-opening valve 5 and the second electromagnetic quick-opening valve 6 through the first remote flow meter 7 and the second remote flow meter 8, and outlets of the mixed bed and the sodium bed are respectively connected to the lower bypass interface 32 through the second electromagnetic flow regulating valve 11 and the third electromagnetic flow regulating valve 12.
The top parts of the mixing bed 9 and the sodium bed 10 are both connected with air-discharging electromagnetic quick- opening valves 13 and 14.
The bottom of the mixing bed 9 and the bottom of the sodium bed 10 are both connected with drainage electromagnetic flow regulating valves 15 and 16, and the bottom outlets of the mixing bed and the sodium bed are respectively connected with an online conductivity meter 17 and an online PH meter 18.
A resin catcher 19 is provided between the lower bypass port 32 and the second and third electromagnetic flow control valves 11 and 12.
The embodiment of the utility model provides a still include PLC system control ware, PLC system control ware with decide cold water pump 1, total flowmeter 2, first electromagnetic flow control valve 3, bypass teletransmission flowmeter 4, first electromagnetism quick-open valve 5, second electromagnetism quick-open valve 6, first teletransmission flowmeter 7, second teletransmission flowmeter 8, second electromagnetic flow control valve 11, third electromagnetic flow control valve 12, exhaust electromagnetism quick- open valve 13, 14, drainage electromagnetic flow control valve 15, 16, online electric conductivity table 20, online PH table 21 electricity is connected.
The embodiment of the utility model provides a with the surely cold water total amount control of bypass within 1000mL/min, make its flow directly proportional with surely cold water system circulation flow through control flap. The part of the fixed cold water flows through the mixed bed and the sodium bed simultaneously, the purpose of controlling the water quality is achieved by automatically adjusting the distribution of two paths of flow, and when the pH value of the fixed cold water is controlled to be 8.0-8.5 and the conductivity is controlled to be 0.6-1.2 mu S/cm, the electrical insulation of the generator and the corrosion rate of the stator bar can be ensured to be in an excellent range.
The utility model discloses the bypass treatment water yield that mixes bed, sodium bed constitution of embodiment is about 2 thousandth of main circulation system flow.
The mixed bed and the sodium bed simultaneously treat the incoming water, the mixed bed is added with macroporous cation resin and macroporous anion resin, the proportion of the cation resin to the anion resin is 20: 1, adding macroporous sodium type resin into the sodium bed. The double beds adopt upper water inlet and bottom water outlet, the upper part is provided with an air exhaust door, and the bottom is provided with a water exhaust door. The double-bed resin is cleaned before filling until the effluent is colorless, free of impurities and broken resin, and is further filtered by a resin catcher, wherein the resin catcher can be selected from a common particle filter.
The PLC system controller has two control modes of 'automatic' and 'manual'. The control process is as follows:
the commissioning process comprises: the mixed bed is first put into operation after the dual bed resin is loaded. 1. An inlet door is opened through the first electromagnetic flow regulating valve 3, an air exhaust electromagnetic quick-opening valve 13 is opened to exhaust air, and the mixed bed water is identified to be full through the sudden flow drop of the bypass remote-transmission flow meter 4. 2. The air exhaust electromagnetic quick-opening valve 13 is closed, the bottom water exhaust electromagnetic flow regulating valve 15 is opened, and resin washing is started. 3. When the conductivity of the outlet of the mixed bed is reduced to 1 mu S/cm, the positive washing is finished, and the water discharge electromagnetic flow regulating valve 15 is closed. The sodium bed was then shipped. 4. And opening an inlet door and an exhaust door, and identifying that the mixed bed water is full through sudden flow reduction. 5. The air-discharge electromagnetic quick-opening valve 14 is closed, the bottom-discharge electromagnetic flow control valve 16 is opened, and the resin is washed. 6. When the sodium bed outlet PH rises above 11, the bottom drain electromagnetic flow control valve 16 is closed. 7. The electromagnetic flow regulating valves at the outlets of the mixed bed and the sodium bed are respectively opened by 50 percent, and the double beds are put into operation.
The operation process comprises the following steps: and taking the on-line conductivity meter 20 of the main circulating system of the fixed cooling water as a feedback signal, closing the second electromagnetic flow regulating valve 11 at the outlet of the mixed bed by 1 percent when the conductivity is lower than 0.6 mu S/cm, delaying for 1800S, and then detecting the feedback signal again. When the conductivity is higher than 1.2 mu S/cm, the second electromagnetic flow regulating valve 11 at the outlet of the mixed bed is opened by 1 percent, the time is delayed by 1800 seconds, and then the feedback signal is detected again. When the conductivity of the outlet of the mixed bed is greater than that of the main circulating system, the mixed bed resin is invalid, an alarm signal of 'mixed bed resin invalid' is sent out, and meanwhile, the second electromagnetic flow regulating valve 11 of the inlet and outlet door of the mixed bed is completely closed, and the operation is quitted. Similarly, with the on-line PH meter 18 of the main circulation system of the chilled water as a feedback signal, when the PH is lower than 8.0m, the third electromagnetic flow regulating valve 12 at the outlet of the sodium bed is opened by 1% and is delayed by 1800S, and then the feedback signal is detected again. When the PH is higher than 8.5, the third electromagnetic flow regulating valve 12 at the outlet of the sodium bed is closed by 1 percent, the time is delayed by 1800S, and then the feedback signal is detected again. When the PH value of the outlet of the sodium bed is lower than the PH value of the main circulation system, the failure of sodium bed resin is indicated, a sodium bed resin failure alarm signal is sent out, and meanwhile, the door of the inlet and the outlet of the sodium bed is closed completely, and the operation is quitted.
When the quality of the fixed cold water is suddenly changed sharply, the control mode can be switched from 'automatic' to 'manual'. The purpose of quickly adjusting the quality of the chilled water is achieved by greatly adjusting the flow of the chilled water entering the bypass treatment device, the flow of the mixed bed and the flow of the sodium bed.
The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. The simple and convenient double-bed treatment device for the bypass of the fixed cold water is characterized by comprising a fixed cold water pump, a total flow meter, a first electromagnetic flow regulating valve, a bypass remote-transmission flow meter, a first electromagnetic quick-opening valve, a second electromagnetic quick-opening valve, a first remote-transmission flow meter, a second remote-transmission flow meter, a mixed bed, a sodium bed, a second electromagnetic flow regulating valve and a third electromagnetic flow regulating valve, wherein the fixed cold water pump, the total flow meter and a main circulation pipeline are connected in series to a cooling channel of a generator, an online conductivity meter and an online PH meter are arranged at the tail end of the cooling channel, the main circulation pipeline is provided with an upper bypass interface and a lower bypass interface, one ends of the first electromagnetic flow regulating valve and the bypass remote-transmission flow meter are connected to the upper bypass interface, the other ends of the first electromagnetic quick-opening valve and the second electromagnetic quick-opening valve are connected, and inlets of the mixed bed and the sodium bed are respectively connected with the first remote-transmission flow meter, And the second remote-transmission flowmeter is connected with the first electromagnetic quick-opening valve and the second electromagnetic quick-opening valve, and the outlet of the second remote-transmission flowmeter is connected to the lower bypass interface through a second electromagnetic flow regulating valve and a third electromagnetic flow regulating valve respectively.
2. The convenient fixed-cold-water bypass double-bed treatment device as claimed in claim 1, wherein the top of the mixed bed and the top of the sodium bed are both connected with air-discharging electromagnetic quick-opening valves.
3. The convenient fixed-cooling water bypass double-bed treatment device according to claim 2, wherein the bottoms of the mixed bed and the sodium bed are both connected with a drainage electromagnetic flow regulating valve.
4. The convenient fixed-cooling water bypass double-bed treatment device as claimed in claim 3, wherein the outlets at the bottoms of the mixed bed and the sodium bed are respectively connected with an online conductivity meter and an online PH meter.
5. The simple and convenient chilled water bypass dual-bed treatment device according to claim 4, wherein a resin trap is provided between the lower bypass port and the second and third electromagnetic flow control valves.
6. The simple and convenient double-bed treatment device for the bypass of the chilled water according to claim 5, further comprising a PLC system controller electrically connected with the chilled water pump, the total flow meter, the first electromagnetic flow regulating valve, the bypass remote flow meter, the first electromagnetic quick-opening valve, the second electromagnetic quick-opening valve, the first remote flow meter, the second electromagnetic flow regulating valve, the third electromagnetic flow regulating valve, the air exhaust electromagnetic quick-opening valve, the water exhaust electromagnetic flow regulating valve, the online conductivity meter and the online PH meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022784103.5U CN214270304U (en) | 2020-11-26 | 2020-11-26 | Simple and convenient decide two bed processing apparatus of cold water bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022784103.5U CN214270304U (en) | 2020-11-26 | 2020-11-26 | Simple and convenient decide two bed processing apparatus of cold water bypass |
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| Publication Number | Publication Date |
|---|---|
| CN214270304U true CN214270304U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022784103.5U Active CN214270304U (en) | 2020-11-26 | 2020-11-26 | Simple and convenient decide two bed processing apparatus of cold water bypass |
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| Country | Link |
|---|---|
| CN (1) | CN214270304U (en) |
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2020
- 2020-11-26 CN CN202022784103.5U patent/CN214270304U/en active Active
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