JPH0157606B2 - - Google Patents
Info
- Publication number
- JPH0157606B2 JPH0157606B2 JP5917781A JP5917781A JPH0157606B2 JP H0157606 B2 JPH0157606 B2 JP H0157606B2 JP 5917781 A JP5917781 A JP 5917781A JP 5917781 A JP5917781 A JP 5917781A JP H0157606 B2 JPH0157606 B2 JP H0157606B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- water
- electromagnetic
- magnetic material
- electromagnetic device
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000000696 magnetic material Substances 0.000 claims description 22
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 description 12
- 239000002351 wastewater Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/032—Matrix cleaning systems
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Description
【発明の詳細な説明】
本発明は高温原水を処理した電磁過器の洗浄
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for cleaning an electromagnetic generator that has treated high-temperature raw water.
電磁過器を高温、高圧水の系統、例えば火力
発電所、高圧ヒータドレン、脱気器出口及び原子
力発電所１次系・２次系冷却系統水等で使用する
場合、電磁過器の通水中の温度はだいたい150
〜350℃の高温状態にある。一方、電磁過器は
一定時間の通水を終了した後は磁性材の洗浄操
作が必要となる。すなわち洗浄操作としては高
温・高圧の通水系統から一旦電磁過器を隔離し
た後に電磁過器に洗浄水を流入させて電磁材
の洗浄を行なう事になる。この場合、電磁過
器・磁性材・配管、弁類などは高温状態にある
ために直接温度の低い洗浄水をここに導いた場
合、急激な温度降下のためにこれらの機器部材に
過大な熱応力を生じ、これらの機器部材の性能劣
下、寿命の低下の原因となる。 When the electromagnetic filter is used in high-temperature, high-pressure water systems, such as thermal power plants, high-pressure heater drains, deaerator outlets, and nuclear power plant primary and secondary cooling system water, The temperature is approximately 150
It is in a high temperature state of ~350℃. On the other hand, in an electromagnetic device, the magnetic material needs to be cleaned after water has been passed for a certain period of time. That is, the cleaning operation involves first isolating the electromagnetic generator from the high-temperature, high-pressure water system, and then flowing cleaning water into the electromagnetic generator to clean the electromagnetic material. In this case, electromagnetic generators, magnetic materials, piping, valves, etc. are in a high temperature state, so if low-temperature cleaning water is directly introduced there, excessive heat will be generated on these equipment components due to a sudden temperature drop. This generates stress, which causes deterioration in the performance and shortened lifespan of these equipment components.
本発明は、高温・高圧の系統で使用する電磁
過器、特に高温原水中の磁性懸濁物を捕捉した電
磁過器の磁性材の洗浄時において、この過大
な熱応力を極力少なくし、電磁過器の機器部材
の性能劣下を防止するとともに洗浄排水の温度を
低下させて安全に排出させ、かつ洗浄排水の処理
を容易にすることを目的とする。 The present invention aims to reduce this excessive thermal stress as much as possible when cleaning the magnetic material of the electromagnetic device used in high temperature and high pressure systems, especially when cleaning the magnetic material of the electromagnetic device that has captured magnetic suspensions in high-temperature raw water. The purpose of this invention is to prevent performance deterioration of the equipment components of the filter, lower the temperature of cleaning wastewater so that it can be safely discharged, and facilitate the treatment of the cleaning wastewater.
本発明においては、上記目的を達成するため
に、高温原水中の磁性懸濁物を捕捉した電磁過
器の磁性材の洗浄にあたつて、電磁過器とは
別に冷却水を通水する熱交換器を設け、この熱交
換器と電磁過器とを配管で連通して閉鎖循環系
を構成し、当該閉鎖循環系に電磁過器内の高温
の過水を循環して過水の温度を徐々に冷却す
ることにより、電磁過器、磁性材を徐々に冷
却するとともに、前記熱交換器に通水することに
より、温度の上昇した冷却水を水槽などに貯留
し、次いでこの温度の上昇した冷却水を用いて電
磁過器の磁性材を洗浄するものである。 In order to achieve the above object, in the present invention, when cleaning the magnetic material of the electromagnetic device that has captured magnetic suspensions in high-temperature raw water, the heat treatment is conducted by passing cooling water separately from the electromagnetic device. An exchanger is provided, and the heat exchanger and the electromagnetic filter are connected through piping to form a closed circulation system, and the high temperature superfluous water in the electromagnetic filter is circulated through the closed circulation system to control the temperature of the superfluous water. By gradually cooling the electromagnetic filter and the magnetic material, by passing water through the heat exchanger, the cooling water whose temperature has increased is stored in a water tank, etc. Cooling water is used to clean the magnetic material of the electromagnetic device.
以下、本発明の実施態様の一例を図面に従つて
詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an embodiment of the present invention will be described in detail below with reference to the drawings.
図中１は磁性材７を充填した電磁過器であ
つて、電磁コイル２を付設するとともに高温原水
管９、過水管１０、逆洗水管１３及び循環水管
１１を連通させる。なお、循環水管１１は閉鎖循
環系として構成し、同管１１には温度計６、循環
ポンプ４、熱交換器３を付設し、熱交換器３内に
冷却水管１２を配設する。 In the figure, reference numeral 1 denotes an electromagnetic converter filled with a magnetic material 7, which is equipped with an electromagnetic coil 2 and which communicates with a high-temperature raw water pipe 9, a water overflow pipe 10, a backwash water pipe 13, and a circulating water pipe 11. Note that the circulating water pipe 11 is constructed as a closed circulation system, and a thermometer 6, a circulation pump 4, and a heat exchanger 3 are attached to the pipe 11, and a cooling water pipe 12 is disposed within the heat exchanger 3.
また、図中５は温度計６′を付設した加温洗浄
水槽であつて、熱交換器３と冷却水管１２′によ
つて、また電磁過器１と洗浄水管１３によつて
連通し、さらに加圧空気管１７と接続した空気貯
槽８と空気管１５によつて連通する。 5 in the figure is a heated washing water tank equipped with a thermometer 6', which communicates with the heat exchanger 3 and the cooling water pipe 12', as well as with the electromagnetic filter 1 and the washing water pipe 13. It communicates with the air storage tank 8 connected to the pressurized air pipe 17 through the air pipe 15 .
なお、図中のＶ０〜Ｖ９は、前述のそれぞれの
配管に付設した弁である。 Note that V0 to V9 in the figure are valves attached to each of the above-mentioned pipes.
次に、電磁過器１の操作について説明する
と、電磁コイル２を励磁状態にし、弁Ｖ１とＶ２
を開いて管９より高温原水を電磁過器１内に導
入して励磁した磁性材７によつて高温原水中の
磁性懸濁物を捕捉除去し、その過水を管１０か
ら流出させる。電磁過器１が規定差圧又は定収
量に達すると磁性材７の洗浄工程に入るが、そ
れには高温原水管９と過水管１０の間に付設し
たバイパス管１４の弁Ｖ０を開き、弁Ｖ１とＶ２
を閉じて電磁過器１を高温原水の通水系統から
切りはなす。 Next, to explain the operation of the electromagnetic generator 1, the electromagnetic coil 2 is energized, and the valves V1 and V2 are
After opening, high-temperature raw water is introduced into the electromagnetic device 1 through the pipe 9, magnetic suspended matter in the high-temperature raw water is captured and removed by the magnetized magnetic material 7, and the superhydrate is allowed to flow out through the pipe 10. When the electromagnetic filtration device 1 reaches a specified differential pressure or a fixed yield, the cleaning process for the magnetic material 7 begins.To do this, the valve V0 of the bypass pipe 14 attached between the high temperature raw water pipe 9 and the superhydric water pipe 10 is opened, and the valve V1 is opened. and V2
, and disconnect the electromagnetic generator 1 from the high-temperature raw water water system.
次に、弁Ｖ４とＶ５を開いて循環ポンプ４を起
動させ、電磁過器１内の高温度の過水を閉鎖
循環系を構成した循環配管１１によつて電磁過
器１、熱交換器３間を循環させるとともに、弁Ｖ
８とＶ７を開いて管１２より熱交換器３に冷却水
を通水して高温の過水を徐々に冷却させること
によつて、電磁過器１をも徐々に冷却させる。 Next, valves V4 and V5 are opened to start the circulation pump 4, and the high-temperature excess water in the electromagnetic generator 1 is transferred to the electromagnetic generator 1 and the heat exchanger 3 through the circulation piping 11 that constitutes a closed circulation system. Valve V
8 and V7 are opened and cooling water is passed through the heat exchanger 3 from the pipe 12 to gradually cool the high-temperature superhydrate, the electromagnetic filter 1 is also gradually cooled.
一方、熱交換器３に通水することによつて温度
の上昇した冷却水は洗浄水として洗浄水槽５に貯
留する。（この間電磁コイル２は励磁状態のまま
にある）。 On the other hand, the cooling water whose temperature has increased by passing through the heat exchanger 3 is stored in the washing water tank 5 as washing water. (During this time, the electromagnetic coil 2 remains in the excited state).
前述の高温度の過水の冷却速度としては100
〜200℃／時間の割合が適当であり、かつ循環配
管１１の温度計６と洗浄水槽５の温度計６′の温
度差が約50℃以内になるように過水の循環時間
及び冷却用水水量を決定すれば良い。例えば、
1000φの電磁過器１を使用し、高温の過水の
温度180℃とした場合について以下に示す。 100 as the cooling rate of the above-mentioned high-temperature overwater.
The overwater circulation time and the amount of cooling water are adjusted so that the rate of ~200℃/hour is appropriate and the temperature difference between the thermometer 6 of the circulation pipe 11 and the thermometer 6' of the washing water tank 5 is within about 50℃. All you have to do is decide. for example,
The case where a 1000φ electromagnetic filter 1 is used and the temperature of high-temperature overwater is 180°C is shown below.
循環する高温の過水の保有水量は：3.2m3、
循環時間：35分、冷却水入口温度：25℃、冷却水
量（洗浄水量）8.7m3とした場合、循環配管１１
の温度計６の温度は180℃から93℃に低下し、こ
の場合の冷却速度としては149℃／時間になり、
一方冷却水入口温度は25℃から、洗浄水槽５に貯
留した時の温度、すなわち温度計６′の温度は57
℃になり、温度計６と温度計６′の温度差は36℃
となつた。 The amount of circulating high temperature superfluous water is: 3.2m3 ,
Circulation time: 35 minutes, cooling water inlet temperature: 25℃, cooling water volume (washing water volume) 8.7m3 , circulation pipe 11
The temperature of the thermometer 6 in the case decreases from 180℃ to 93℃, and the cooling rate in this case is 149℃/hour.
On the other hand, the cooling water inlet temperature is 25°C, and the temperature when it is stored in the washing water tank 5, that is, the temperature measured by the thermometer 6' is 57°C.
℃, and the temperature difference between thermometer 6 and thermometer 6' is 36℃.
It became.
次に、電磁過器１の磁性材７の洗浄操作は
以下の手順で行なう。先ず弁Ｖ４，Ｖ５，Ｖ７，
Ｖ８を閉じるとともに循環ポンプ４を停止して循
環を停止させる。次に電磁コイル２への通電を停
止して磁性材７を消磁した後に弁Ｖ３，Ｖ６，
Ｖ９を開け、予め貯えた空気貯槽８の加圧空気を
管１５を経て洗浄水槽５に圧入し、その空気圧に
よつて洗浄水槽５の加温した洗浄水を管１３を経
て電磁過器１の底部より上昇流で圧入すること
によつて磁性材７を逆洗洗浄し、捕捉された濁
質を磁性材７より剥離し、その洗浄排水を管１
６より系外に排出する。 Next, the cleaning operation of the magnetic material 7 of the electromagnetic device 1 is performed in the following procedure. First, valves V4, V5, V7,
V8 is closed and circulation pump 4 is stopped to stop circulation. Next, after stopping the energization to the electromagnetic coil 2 and demagnetizing the magnetic material 7, the valves V3, V6,
V9 is opened, pressurized air from the air storage tank 8 stored in advance is injected into the washing water tank 5 through the pipe 15, and the air pressure causes the heated washing water from the washing water tank 5 to flow through the pipe 13 into the electromagnetic device 1. The magnetic material 7 is backwashed by being press-fitted from the bottom with an upward flow, the captured suspended solids are separated from the magnetic material 7, and the washed wastewater is drained into the pipe 1.
6. Discharge from the system.
なお、通水工程に復帰するには先ず弁Ｖ３，Ｖ
６を閉じ、電磁コイル２に通電して磁性材７を
励磁した後に弁Ｖ０を開けたまま、弁Ｖ１，Ｖ２
を徐々に開け、電磁過器に高温原水を徐々に導
いて洗浄時と同様に100〜200℃／時間の加熱速度
で上昇させた後に弁Ｖ０を閉じて高温原水を全量
電磁過器１に流入させればよい。 In addition, to return to the water flow process, first close valves V3 and V.
6, and after energizing the electromagnetic coil 2 to excite the magnetic material 7, the valves V1 and V2 are opened while the valve V0 is open.
is gradually opened, and the high-temperature raw water is gradually introduced into the electromagnetic generator 1, and the temperature is raised at a heating rate of 100 to 200℃/hour, similar to the cleaning process.Then, the valve V0 is closed and the entire amount of high-temperature raw water flows into the electromagnetic generator 1. Just let it happen.
本発明の洗浄方法によると、電磁過器、磁性
材、配管、弁類などに対する熱応力をほとんど
受けることがないために、これらの機器部品の性
能、寿命の低下を起こすことはなく、電磁過器
全体の安定性を一段と向上させることができる。 According to the cleaning method of the present invention, electromagnetic overload devices, magnetic materials, piping, valves, etc. are hardly subjected to thermal stress, so there is no deterioration in the performance and life of these equipment parts, and no electromagnetic overload is caused. The stability of the entire device can be further improved.
また、磁性材の洗浄排水は電磁過器、磁性
材によつて高温度に加温されることなく系外に
排出するために、以後の廃水処理も容易となる利
点もある。 Further, since the waste water from washing the magnetic material is discharged outside the system without being heated to a high temperature by the electromagnetic generator or the magnetic material, there is an advantage that subsequent waste water treatment is also easy.
図面は本発明の実施態様の一例を示すもので、
電磁過器の洗浄方法のフローを示す説明図であ
る。
１……電磁過器、２……電磁コイル、３……
熱交換器、４……循環ポンプ、７……磁性材、
１１……循環配管、１２……冷却水管、１３……
洗浄水管、Ｖ０〜Ｖ９……弁。
The drawings show an example of an embodiment of the present invention,
It is an explanatory view showing a flow of a cleaning method of an electromagnetic device. 1... Electromagnetic device, 2... Electromagnetic coil, 3...
Heat exchanger, 4... Circulation pump, 7... Magnetic material,
11...Circulation piping, 12...Cooling water pipe, 13...
Washing water pipe, V0 to V9...valve.
Claims (1)
器の磁性材を洗浄するにあたり、冷却水を通水
する熱交換器を設け、熱交換器と電磁過器とを
配管で連通して閉鎖循環系を構成し、当該閉鎖循
環系に電磁過器内の高温度の過水を循環して
高温度の過水を徐々に冷却することによつて電
磁過器、磁性材を徐々に冷却し、さらに前記
熱交換器に通水することにより温度の上昇した冷
却水を貯留し、次いでこの温度の上昇した冷却水
を用いて電磁過器の磁性材を洗浄することを
特徴とする電磁過器の洗浄方法。1. When cleaning the magnetic material of the electromagnetic device that has captured magnetic suspended matter in high-temperature raw water, a heat exchanger is installed to pass cooling water, and the heat exchanger and the electromagnetic device are connected through piping and closed. A circulation system is configured, and the high-temperature superfluous water in the electromagnetic device is circulated through the closed circulation system to gradually cool the high-temperature superwater, thereby gradually cooling the electromagnetic device and the magnetic material. , an electromagnetic device further comprising storing cooling water whose temperature has increased by passing water through the heat exchanger, and then using the cooling water whose temperature has increased to wash a magnetic material of the electromagnetic device. cleaning method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917781A JPS57201509A (en) | 1981-04-21 | 1981-04-21 | Cleaning method for electromagnetic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917781A JPS57201509A (en) | 1981-04-21 | 1981-04-21 | Cleaning method for electromagnetic filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57201509A JPS57201509A (en) | 1982-12-10 |
| JPH0157606B2 true JPH0157606B2 (en) | 1989-12-06 |
Family
ID=13105848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5917781A Granted JPS57201509A (en) | 1981-04-21 | 1981-04-21 | Cleaning method for electromagnetic filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57201509A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7415242B2 (en) * | 2018-03-09 | 2024-01-17 | 国立研究開発法人物質・材料研究機構 | magnetic separation device |
-
1981
- 1981-04-21 JP JP5917781A patent/JPS57201509A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57201509A (en) | 1982-12-10 |
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