CN114111920A - A monitoring device for the cooling water flow of the rotor packing of the generator/conditioner - Google Patents
A monitoring device for the cooling water flow of the rotor packing of the generator/conditioner Download PDFInfo
- Publication number
- CN114111920A CN114111920A CN202111231485.1A CN202111231485A CN114111920A CN 114111920 A CN114111920 A CN 114111920A CN 202111231485 A CN202111231485 A CN 202111231485A CN 114111920 A CN114111920 A CN 114111920A
- Authority
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- China
- Prior art keywords
- cooling water
- measuring container
- liquid level
- generator
- rotor packing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012856 packing Methods 0.000 title claims abstract description 42
- 239000000498 cooling water Substances 0.000 title claims abstract description 41
- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 239000003607 modifier Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/007—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring the level variations of storage tanks relative to the time
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
本发明公开了一种发电机/调相机转子盘根冷却水流量监测装置，其特征在于，包括用于收集转子盘根冷却水的测量容器，测量容器内的同一位置高度设有至少一个液位开关，测量容器的底部连接有出水管，出水管上设有用于实现控制测量或排水的电磁阀；液位开关联锁控制电磁阀。本发明装置的结构采用集成设计，将测量容器、电磁阀、液位开关、溢流管路集成在一个装置上，结构简单，安装、使用方便。
The invention discloses a generator/condensor rotor packing cooling water flow monitoring device, which is characterized in that it comprises a measuring container for collecting rotor packing cooling water, and at least one liquid level is set at the same height in the measuring container. The bottom of the measuring container is connected with a water outlet pipe, and the water outlet pipe is provided with a solenoid valve for controlling measurement or drainage; the liquid level switch is interlocked to control the solenoid valve. The structure of the device of the invention adopts an integrated design, and the measuring container, the electromagnetic valve, the liquid level switch and the overflow pipeline are integrated into one device, and the structure is simple, and the installation and use are convenient.
Description
Technical Field
The invention relates to a cooling water flow monitoring device for a rotor packing of a generator/phase modulator, and belongs to the technical field of operation detection of a steam turbine generator/phase modulator.
Background
The rotor packing of the double-water internal cooling generator/phase modifier needs cooling water for cooling, and the cooling water flow is about (50-1500) ml/min. The packing material is polytetrafluoroethylene containing graphite, so that a small amount of impurities (more when the packing is new) exist in the packing cooling water. Due to the reasons that the flow range of cooling water of the rotor packing is large (30-2500 ml/min), the minimum value of the flow range is small, impurities exist in water, a water source does not have a power source and the like, the conventional flowmeter cannot be used for online measurement in the conventional packing cooling water monitoring, manual timing measurement recording is adopted, the measuring method is original, and more manpower is consumed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to monitor the cooling water flow of the rotor packing on line.
In order to solve the technical problem, the technical scheme of the invention provides a generator/phase modifier rotor packing cooling water flow monitoring device which is characterized by comprising a measuring container for collecting rotor packing cooling water, wherein at least one liquid level switch is arranged at the same position in the measuring container, the bottom of the measuring container is connected with a water outlet pipe, and an electromagnetic valve for realizing control measurement or water drainage is arranged on the water outlet pipe; the liquid level switch controls the electromagnetic valve in an interlocking way.
Preferably, at least two liquid level switches are arranged at the same position height in the measuring container.
Preferably, the measuring container is further provided with an overflow pipe communicated with the measuring container, the position of the inlet end of the overflow pipe is higher than that of the liquid level switch, the outlet end of the overflow pipe is communicated with the water outlet pipe, and the outlet end of the overflow pipe is arranged on one side of the electromagnetic valve far away from the connecting position of the measuring container and the water outlet pipe.
Preferably, the electromagnetic valve is in a normally open state; when the flow of cooling water of the rotor packing needs to be measured, the electromagnetic valve is closed, timing is started, the measuring container collects the cooling water of the rotor packing with small flow, and when the liquid level in the measuring container reaches the position of a liquid level switch, the timing is finished, and the electromagnetic valve is opened for draining water.
Compared with the prior art, the invention has the following advantages:
the device adopts an integrated design, integrates the measuring container, the electromagnetic valve, the liquid level switch and the overflow pipeline on one device, and has simple structure and convenient installation and use. By the device, small-flow packing cooling water which cannot be directly measured is collected and converted into liquid level for measurement, the measured liquid level (namely the position of the liquid level switch) is calculated into water volume, and the water volume is converted into water flow. The method can realize the online monitoring of the cooling water flow of the rotor packing of the generator/phase modulator, can set an alarm value, can be suitable for all water-cooled generator/phase modulator cooling water systems (or double-water-cooled generator/phase modulator cooling water systems), and solves the problem that the cooling water flow of the rotor packing can not be monitored online.
Drawings
FIG. 1 is a schematic view of a generator/phase modifier rotor packing cooling water flow monitoring device.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The invention provides a generator/phase modifier rotor packing cooling water flow monitoring device which is used for monitoring rotor packing cooling water flow, and as shown in figure 1, the device comprises a measuring container 4, an electromagnetic valve 2, liquid level switches 5, an overflow pipe 1 and a water outlet pipe 3, wherein the two liquid level switches 5 are arranged at the same height in the measuring container 4, the bottom of the measuring container 4 is connected with the water outlet pipe 3, and the electromagnetic valve 2 used for realizing control measurement or water drainage is arranged on the water outlet pipe 3.
The packing is located generator/phase modifier rotor entrance, generally is located the eminence, arranges the water yield to the below through packing cooling water piping 6, and measuring vessel 4 installs in packing cooling water piping 6's export below for collect rotor packing cooling water.
In order to ensure the measurement reliability, the liquid level switch 5 is designed to be two redundancies, and only one of the signals of the two liquid level switches 5 is needed. Meanwhile, the device is provided with an overflow pipe 1, the position of the overflow pipe 1 is higher than that of a liquid level switch 5, the outlet end of the overflow pipe 1 is communicated with a water outlet pipe 3, and the outlet end of the overflow pipe 1 is arranged on one side of the electromagnetic valve 2, which is far away from the connection part of a measuring container 4 and the water outlet pipe 3. If a fault that the electromagnetic valve 2 cannot be opened occurs, the packing cooling water in the measuring container 4 can be discharged through the overflow pipe 1, and the packing cooling water is prevented from overflowing from the measuring container 4.
Collect the packing cooling water of the little flow that can't direct measurement through measuring container 4, with the packing cooling water of little flow in the time of knowable, calculate again through the accumulative capacity and turn into the flow. The electromagnetic valve 2 is used for realizing control measurement or drainage; and the liquid level switch 5 is used for carrying out volume calculation after liquid level measurement and interlocking the control electromagnetic valve 2. The overflow pipe 1 can prevent the water from being drained by the measuring device when the electromagnetic valve 2 fails and cannot be opened. The measurement logic and the calculation formula need to be realized in a Distributed Control System (DCS), and an operator can manually operate the DCS or set periodic measurement logic in the DCS, so that the purpose of monitoring the cooling water flow of the rotor packing of the generator/phase modulator in real time can be realized.
The working principle of the invention is as follows:
In the present embodiment, the radius r of the measuring container 4 is 75mm, and the height h from the bottom of the measuring container 4 to the level switch 5 is 200mm, so that Q is 3.14 × 0.0752×0.2/T＝3.532×10-3/T(m3/s)。
The measurement logic and the calculation formula need to be realized in the DCS, and an operator can manually operate the DCS or set periodic measurement logic in the DCS, so that the purpose of monitoring the cooling water flow of the rotor packing of the generator/phase modulator in real time can be realized.
Example 2
In this embodiment, a liquid level switch 5 is provided at the same height position in the measuring container 4.
The rest is the same as in example 1.
Claims (4)
1. A cooling water flow monitoring device for a rotor packing of a generator/phase modulator is characterized by comprising a measuring container (4) for collecting cooling water of the rotor packing, wherein at least one liquid level switch (5) is arranged at the same height position in the measuring container (4), the bottom of the measuring container (4) is connected with a water outlet pipe (3), and an electromagnetic valve (2) for realizing control measurement or water drainage is arranged on the water outlet pipe (3); the liquid level switch (5) controls the electromagnetic valve (2) in an interlocking way.
2. The generator/condenser rotor packing cooling water flow monitoring device according to claim 1, characterized in that at least two level switches (5) are arranged at the same position height in the measuring container (4).
3. The generator/phase modifier rotor packing cooling water flow monitoring device according to claim 1, characterized in that the measuring container (4) is further provided with an overflow pipe (1) communicated with the measuring container (4), the position of the inlet end of the overflow pipe (1) is higher than the position of the liquid level switch (5), the outlet end of the overflow pipe (1) is communicated with the water outlet pipe (3), and the outlet end of the overflow pipe (1) is arranged on one side of the electromagnetic valve (2) far away from the connection position of the measuring container (4) and the water outlet pipe (3).
4. The generator/phase modifier rotor packing cooling water flow monitoring device according to claim 1, wherein the solenoid valve (2) is in a normally open state; when rotor packing cooling water flow needs to be measured, the electromagnetic valve (2) is closed, timing is started, the measuring container (4) collects small-flow rotor packing cooling water, when the liquid level in the measuring container (4) reaches the position of the liquid level switch (5), timing is finished, and the electromagnetic valve (2) is opened for draining water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231485.1A CN114111920A (en) | 2021-10-22 | 2021-10-22 | A monitoring device for the cooling water flow of the rotor packing of the generator/conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231485.1A CN114111920A (en) | 2021-10-22 | 2021-10-22 | A monitoring device for the cooling water flow of the rotor packing of the generator/conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114111920A true CN114111920A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111231485.1A Pending CN114111920A (en) | 2021-10-22 | 2021-10-22 | A monitoring device for the cooling water flow of the rotor packing of the generator/conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114111920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037639A (en) * | 2023-01-31 | 2023-05-02 | 江苏省环境科学研究院 | Drip irrigation type automatic injection process and device for in-situ restoration agent of soil and underground water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506950A (en) * | 2011-11-07 | 2012-06-20 | 中国科学院自动化研究所 | Device for detecting free flow and back pressure flow of electromagnetic pump and detection method |
| CN105159335A (en) * | 2015-07-31 | 2015-12-16 | 连云港大发环保科技有限公司 | Discontinuous flow tiny flow control method and device used thereby |
| KR101644060B1 (en) * | 2015-02-10 | 2016-07-29 | 한국원자력연구원 | Measuring device for micro flow rate and nuclear power plant having the same |
| CN110173016A (en) * | 2019-06-28 | 2019-08-27 | 阜宁协鑫光伏科技有限公司 | Inserting machine water system |
| CN212903776U (en) * | 2020-09-22 | 2021-04-06 | 杭州意能电力技术有限公司 | Phase modifier rotor support water leakage measurement system that intakes |
-
2021
- 2021-10-22 CN CN202111231485.1A patent/CN114111920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506950A (en) * | 2011-11-07 | 2012-06-20 | 中国科学院自动化研究所 | Device for detecting free flow and back pressure flow of electromagnetic pump and detection method |
| KR101644060B1 (en) * | 2015-02-10 | 2016-07-29 | 한국원자력연구원 | Measuring device for micro flow rate and nuclear power plant having the same |
| CN105159335A (en) * | 2015-07-31 | 2015-12-16 | 连云港大发环保科技有限公司 | Discontinuous flow tiny flow control method and device used thereby |
| CN110173016A (en) * | 2019-06-28 | 2019-08-27 | 阜宁协鑫光伏科技有限公司 | Inserting machine water system |
| CN212903776U (en) * | 2020-09-22 | 2021-04-06 | 杭州意能电力技术有限公司 | Phase modifier rotor support water leakage measurement system that intakes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037639A (en) * | 2023-01-31 | 2023-05-02 | 江苏省环境科学研究院 | Drip irrigation type automatic injection process and device for in-situ restoration agent of soil and underground water |
| CN116037639B (en) * | 2023-01-31 | 2023-10-03 | 江苏省环境科学研究院 | Drip irrigation type automatic injection process and device for in-situ restoration agent of soil and underground water |
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