川消壓力開關(guān)在電氣消防中的具體應(yīng)用
來源：http://m.xintli.net/ 日期：2022-10-28
壓力開關(guān)是一個(gè)壓力控制裝置，當(dāng)被測(cè)壓力達(dá)到一定壓力值時(shí)，壓力開關(guān)能發(fā)出警報(bào)或控制信號(hào)。下面
川消小編為您講講壓力開關(guān)在電氣消防中的具體應(yīng)用。
The pressure switch is a pressure control device. When the measured pressure reaches a certain value, the pressure switch can send an alarm or control signal. Now let's talk about the specific application of pressure switch in electrical fire protection.
壓力開關(guān)的分類：
Classification of pressure switches:
壓力開關(guān)是一種簡(jiǎn)單的將系統(tǒng)的壓力信號(hào)轉(zhuǎn)換成電信號(hào)的壓力控制裝置，室內(nèi)消火栓系統(tǒng)中壓力開關(guān)的主要功能是將檢測(cè)量與設(shè)定值相比較，在設(shè)定點(diǎn)輸出開關(guān)信號(hào)，進(jìn)行報(bào)警及聯(lián)鎖啟動(dòng)消防泵。
The pressure switch is a simple pressure control device that converts the pressure signal of the system into an electrical signal. The main function of the pressure switch in the indoor fire hydrant system is to compare the measured value with the set value, output the switch signal at the set point, alarm and interlock the fire pump.
壓力開關(guān)主要有機(jī)械式和電子式兩大類。
Pressure switches are mainly mechanical and electronic.
機(jī)械式壓力開關(guān)采用純機(jī)械形變導(dǎo)致開關(guān)元件動(dòng)作。當(dāng)壓力增加時(shí)，傳感壓力元器件產(chǎn)生形變，通過欄桿、彈簧等機(jī)械結(jié)構(gòu)，啟動(dòng)開關(guān)元件，使電信號(hào)輸出。
The mechanical pressure switch uses pure mechanical deformation to cause the switching element to act. When the pressure increases, the sensing pressure components will deform. Through mechanical structures such as railings and springs, the switch components will be started to output electrical signals.
壓力開關(guān)的接線：
Wiring of pressure switch:
工作方式：當(dāng)壓力上升到設(shè)定值上限時(shí)，藍(lán)線和白線斷開，當(dāng)壓力下降到預(yù)先設(shè)定的啟泵壓力值時(shí)，藍(lán)線和白線之間導(dǎo)通。
Working mode: When the pressure rises to the upper limit of the set value, the blue line and the white line are disconnected. When the pressure drops to the preset starting pressure, the blue line and the white line are connected.
1、紅、黑接報(bào)警主機(jī)的24V電源線，藍(lán)、白線接消防控制柜。（藍(lán)、白線導(dǎo)通輸出一個(gè)無源觸點(diǎn)）。
1. The red and black wires are connected to the 24V power line of the alarm host, and the blue and white wires are connected to the fire control cabinet. (The blue and white lines conduct and output a passive contact).
2、故低壓壓力開共4根線，沒有接線端子可以接輸入模塊，低壓力開關(guān)的動(dòng)作信號(hào)無法反饋到主機(jī)。（低壓力開關(guān)動(dòng)作可以通過消防泵的啟泵信號(hào)反饋給消防主機(jī)）。有人可能要問消防泵不能有自動(dòng)停泵功能，低壓壓力開為什么有個(gè)上限值。水規(guī)要求零流量時(shí)壓力不應(yīng)大于設(shè)計(jì)工作壓力的140%，所以只要把壓力開關(guān)的上限值調(diào)到泵的揚(yáng)程的1.4倍就可以了。
2. Therefore, there are 4 lines for the low pressure switch. There is no connection terminal to connect the input module. The action signal of the low pressure switch cannot be fed back to the host. (The action of the low pressure switch can be fed back to the fire engine through the pump start signal of the fire pump). Someone may ask why there is an upper limit value for the low pressure switch because the fire pump cannot have the automatic stop function. The water gauge requires that the pressure at zero flow should not be greater than 140% of the design working pressure, so it is only necessary to adjust the upper limit value of the pressure switch to 1.4 times of the pump head.
長(zhǎng)期使用要定期檢測(cè)它的性能是否完好，如失效或損壞時(shí)要由專員進(jìn)行維修。更多相關(guān)事項(xiàng)的了解，就來我們網(wǎng)站
http://m.xintli.net進(jìn)行咨詢了解吧！
If it is used for a long time, its performance should be checked regularly to see if it is in good condition. If it is invalid or damaged, the specialist should repair it. For more information on related matters, please come to our website http://m.xintli.net Consult and understand!
