Pressure sensor device and control method

A technology of pressure sensor and control method, applied in the direction of pressure-lubricated safety device, etc., can solve the problems of high oil pressure, loss, and the inability to replace the pressure sensor, and achieve the effect of reliable switching and reliable medium circulation channel.

Active Publication Date: 2020-10-13
WEICHAI HEAVY MACHINERY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, the existing pressure sensors do not have the function of automatic switching without stopping
Take the oil pressure sensor as an example: during the operation of the ship, once the oil pressure sensor is damaged and cannot send out the oil pressure signal, the ship will stop without external control, and the ship is prone to the danger of capsizing after stopping at sea , resulting in irreparable damage
Even if external control is carried out to ensure that the diesel engine does not stop, the oil pressure in the oil passage is high, and the pressure sensor cannot be replaced under the condition of high-pressure oil
[0004] When the status information of the diesel engine cannot be obtained, there are risks to the operation of the diesel engine and the ship

Method used

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  • Pressure sensor device and control method

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Experimental program
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Effect test

Embodiment 1

[0050] Such as Figure 1 to Figure 4 As shown, a pressure sensor device includes a base 1, a first pressure sensor 2 and a second pressure sensor 3 arranged on the base 1, and the base 1 is provided with a first detection channel 11 and a second detection channel 12. The communication channel 15 and the medium entry channel 10; the detection end of the first pressure sensor 2 is set in the first detection channel 11; the detection end of the second pressure sensor 3 is set in the second detection channel 12; the communication channel 15 is provided with a communication shaft 4, and the length of the communication channel 15 is greater than the length of the communication shaft 4; a power mechanism is also provided on the base 1, and the power mechanism acts on the communication shaft 4 to move in the communication channel 15 to communicate with the first detection channel 11 and the medium inlet channel 10 or communicate with the second detection channel 12 and the medium entr...

Embodiment 2

[0063] Such as Figure 5 As shown, a control method of a pressure sensor device, the pressure sensor device is the pressure sensor device described in Embodiment 1, in the initial state of the pressure sensor device, the first pressure sensor is put into use, and the second pressure sensor is not used, of course In the initial state, the second pressure sensor can be put into use, including the following steps:

[0064] Step S1, obtaining the medium pressure value collected by the first pressure sensor;

[0065] Step S2, judging whether the medium pressure value is within a preset range, the preset range is a pre-calibrated amount, and the case of not being in the preset range includes the case that the medium pressure value is too low or not collected;

[0066] Step S3, if no (the medium pressure value is not within the preset range), generate a corresponding control signal; if the medium pressure value is within the preset range, it indicates that the first pressure sensor ...

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Abstract

The invention discloses a pressure sensor device and a control method. The device comprises a base, a first pressure sensor, a second pressure sensor, a power mechanism, a communication shaft and a main control unit, wherein the base is provided with a first detection channel, a second detection channel, a communication channel and a medium inlet channel; the first pressure sensor is arranged in the first detection channel; the second pressure sensor is arranged in the second detection channel; and the communication shaft is arranged in the communication channel. In the initial state, the first pressure sensor is put into use, and the first detection channel, the communication channel and the medium inlet channel communicate with one another. When the medium pressure value collected by thefirst pressure sensor is not normal, the main control unit starts the second pressure sensor and controls the power mechanism to move to make the communication shaft to move, so that the second detection channel, the communication channel and the medium inlet channel communicate with one another, and automatic switching of the pressure sensors is realized without shutdown. It can be seen that thedevice ensures the operation reliability of equipment, such as diesel engines, using the device.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to a pressure sensor device and a control method. Background technique [0002] Existing marine diesel engines are equipped with various pressure sensors, which are used to monitor various pressure values ​​of the diesel engine to ensure that the various pressures of the diesel engine are within the required range, thereby ensuring the reliable operation of the diesel engine. When there is a problem with the pressure value of the medium, the diesel engine will send out an alarm signal to remind the crew on board to check the diesel engine. If the pressure value is too low or disappears, the diesel engine will alarm and stop without external control. [0003] However, none of the existing pressure sensors has the function of automatic switching without stopping. Take the oil pressure sensor as an example: during the operation of the ship, once the oil pressure sensor is dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/20
CPCF01M1/20
Inventor 孙运中孙辰龙李荣玖靳良真潘晓
Owner WEICHAI HEAVY MACHINERY
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