УРЛАГ
ГОО САЙХАН БА ЭРҮҮЛ МЭНД
ГАРААР ХИЙСЭН
СОЁЛ БА ТҮҮХ
ҮЗВЭР НААДАМ
БАЙГАЛЬ ОРЧИН
ХООЛ БА УНДАА
УРВУУ ИНЖЕНЕРЧЛЭЛ
ШИНЖЛЭХ УХААН
СПОРТ
ТЕХНОЛОГИ
ӨМСДӨГ ХЭРЭГСЭЛ
Youblob (generated from this blueprint's notebook) · CC0
The Solenoid Valve: An Electromagnet That Opens a Pipe
A relay lets a small current switch a large one. A solenoid valve does the same for a fluid: a coil round a tube pulls a soft-iron plunger that opens or closes an orifice, so a switch, a thermostat or a timer can turn water, air, gas or oil on and off without a hand on the valve. Washing machines, irrigation timers, compressors and boilers all use them.
The Automatic Switch Company (ASCO) of New York is credited with making the first solenoid valves in 1910.
This rung works out why a solenoid's pull depends so steeply on its air gap, why that limits a direct-acting valve's orifice, and how a pilot valve gets round it — then drives a real 12 V valve from a switch and measures when it will and will not open.
Анхан шат
About 3 hours
Зааварчилгаа
1
1
Pull against gap, and the orifice it can open
Pull against gap, and the orifice it can open
Jupyter дэвтэр ачаалж байна…
2
2
The same electromagnet, switching a current
The same electromagnet, switching a current
A solenoid valve is an electromagnet pulling an armature, as in a relay. The embedded blueprint builds the relay the idea came from.
3
3
Measure a solenoid's pull against its gap
Measure a solenoid's pull against its gap
Take a small 12 V push-pull solenoid. Clamp it upright and hang its plunger from a spring scale, with a nut on the scale's hook so you can set the gap between the plunger's end and the coil's stop with feeler gauges.
At each gap switch the coil on from the power supply and read the pull. Plot pull against gap: it rises steeply as the gap closes, as the notebook's $1/g^2$ says, then levels off as the iron saturates. Watch the coil current on the supply's meter: it does not change with the gap — the current sets the ampere-turns, the gap sets the pull.
Энэ алхмын материал:
Соленоид1 ширхэг
Холбогч утас1 ширхэгШаардлагатай багаж:
Шууд урсгалын тэжээлийн үүсгүүр
Хүч хэмжигч (пүрштэй жин)
Зайн хэмжигчийн багц
Ширээний хавчаар
Мультиметр4
4
Drive a real valve, and find where it stops opening
Drive a real valve, and find where it stops opening
Plumb a 12 V solenoid valve between a garden hose (through a ball valve and pressure gauge) and an open outlet into a bucket, with the valve's arrow pointing downstream. Wire the coil to the power supply through a push button.
Press the button and water flows; release it and it stops. Now close the ball valve until the gauge reads almost nothing and try again: many small 12 V valves are pilot-operated and will not open at all at very low pressure — they need a pressure difference to lift their diaphragm. Note the lowest pressure at which it opens, and check the valve's plate or data sheet for its minimum operating pressure.
Энэ алхмын материал:
12V Solenoid Valve - 19mm1 ширхэг
Цэцэрлэгийн хоолой1 ширхэг
Гуулин бөмбөлөгт хаалт1 ширхэг
PTFE нээлтийн битүүмжлэх тууз1 ширхэг
Товчлуур1 ширхэг
Ус20 литрШаардлагатай багаж:
Шууд урсгалын тэжээлийн үүсгүүр
Даралтын хэмжүүр
Тохируулгатай түлхүүр
Хувин5
5
A solenoid valve that will not behave
A solenoid valve that will not behave
Solenoid valve faults in the order to check them.
Flow
Loading...
6
6
History and honest limits
History and honest limits
The **Automatic Switch Company** (ASCO), founded in New York, is credited with the first solenoid valves, in 1910. Direct-acting and pilot-operated valves of every size now follow the same two patterns.
**Honest limits.** The notebook's pull formula counts only the air gap and ignores the iron's own reluctance and leakage flux; real solenoids give less. A coil held on continuously warms, and its resistance and pull fall as it does. Never use a water valve for gas or fuel: those need valves certified for them.
Материал
8- -с эхэлж$1.60
- 12V Solenoid Valve - 19mm10% комисс1 ширхэг$7.49
- Цэцэрлэгийн хоолой10% комисс1 ширхэгТүр орлуулагч
- 1 ширхэгТүр орлуулагч
- 1 ширхэгТүр орлуулагч
- 20 литрТүр орлуулагч
Шаардлагатай багаж
8- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
- Түр орлуулагч
Тооцоолсон нийт дүн
Бүтээгч юу худалдаж авсан нь. Үнэгүй харагдаж буй материалыг та худалдаж авах газраасаа олно.
Холбоотой загварууд
Эдгээр загварууд мэдлэг хуваалцдаг — арга техник, материал эсвэл зарчим
The Telegraph Relay
Ed зохиосон
Электроник
43
0
0
0
2
0
The Float Valve
Martin зохиосон
ТЕХНОЛОГИ
34
0
0
0
1
0
One Way Only: The Check Valve and the Bang It Makes
Martin зохиосон
Багаж
3
0
0
0
0
0
The Spool Valve: Steering Oil With a Sliding Rod
Emma зохиосон
Механик
2
0
0
0
0
0
Ohm's Law at the Bench: Picking the Resistor That Saves the LED
Volt зохиосон
Электроник
23
0
0
0
0
0
CC0 Нийтийн домэйн
Энэ загвар CC0 дор гаргагдсан. Та зөвшөөрөл авахгүйгээр хуулах, өөрчлөх, түгээх, ашиглах боломжтой.
Загвараар дамжуулан бүтээгдэхүүн худалдаж авч Бүтээгчийг дэмжээрэй Бүтээгчийн шимтгэл Борлуулагчаар тогтоосон, эсвэл энэ загварын шинэ хувилбар үүсгэж орлогоо хуваахын тулд өөрийн загварт холбоос болгон оруулна уу.