CN210346831U - Bubble type liquid level transducer - Google Patents
Bubble type liquid level transducer Download PDFInfo
- Publication number
- CN210346831U CN210346831U CN201921836348.9U CN201921836348U CN210346831U CN 210346831 U CN210346831 U CN 210346831U CN 201921836348 U CN201921836348 U CN 201921836348U CN 210346831 U CN210346831 U CN 210346831U
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- trachea
- air
- circuit board
- analog signal
- input terminal
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Abstract
The utility model discloses a bubble type liquid level transmitter, which comprises a shell, a circuit board, an input terminal, an output terminal and an air inlet, wherein the circuit board is arranged inside the shell, the air inlet is arranged on one side of the shell, and the input terminal and the output terminal are both arranged on the other side of the shell opposite to the air inlet; the circuit board, the input terminal and the output terminal are all electrically connected with a power supply, the circuit board is electrically connected with the input terminal, the circuit board converts the pressure signal into a first analog signal, the input terminal receives the first analog signal, and the output terminal outputs the first analog signal. The utility model discloses it is little disturbed by outside atmospheric pressure, and signal output is stable, like the atmospheric pressure change that the stirring arouses.
Description
Technical Field
The utility model relates to a changer technical field especially relates to bubble formula liquid level changer.
Background
The liquid level transmitter is a device which converts a physical measurement signal or a common electric signal into a standard electric signal to be output or can output in a communication protocol mode, and realizes accurate measurement and transmission of the volume, liquid height and weight of water, oil and paste according to the principle that the pressure generated by liquids with different specific gravities at different heights is in a linear relation.
At present, most of the commonly used liquid level transmitters without display and set functions have the defects of unstable transmission signals, unstable output signals, no visual display of output values and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bubble formula liquid level changer receives outside atmospheric pressure interference little, and signal output is stable, and the output value can show.
To achieve the purpose, the utility model adopts the following technical proposal:
the bubble type liquid level transmitter comprises a shell, a circuit board, an input terminal, an output terminal and an air inlet, wherein the circuit board is arranged in the shell, the air inlet is arranged on one side of the shell, and the input terminal and the output terminal are arranged on the other side of the shell opposite to the air inlet;
the circuit board, the input terminal and the output terminal are all electrically connected with a power supply, the circuit board is electrically connected with the input terminal, the circuit board converts the pressure signal into a first analog signal, the input terminal receives the first analog signal, and the output terminal outputs the first analog signal.
Preferably, the circuit board includes a CPU processor, an air pressure detecting element, and an AD conversion module, the air pressure detecting element converts a pressure signal into a voltage signal, the voltage signal is converted into a first analog signal by the AD conversion module and is input to the CPU processor, and the CPU processor transmits the first analog signal to the input terminal.
Preferably, the digital tube is further included, and receives the first analog signal output by the output terminal, and displays an output numerical value.
Preferably, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing are fastened by screws.
Preferably, the air-conditioning device further comprises an air compression device, a first air pipe, a second air pipe, a third air pipe and a tee joint, wherein one ends of the first air pipe, the second air pipe and the third air pipe are respectively communicated with the tee joint, the other end of the first air pipe extends into the bottom of the water cylinder, the other end of the second air pipe is communicated with the air inlet, the other end of the third air pipe is communicated with the air compression device, and the air compression device compresses air.
Preferably, still include trachea governing valve, the one end of trachea governing valve is passed through third trachea and tee bend intercommunication, the other end of trachea governing valve passes through fourth trachea and air compression device intercommunication, trachea governing valve adjusts air compression volume of air compression device.
The utility model has the advantages that: the transmitter is slightly interfered by external air pressure, and the signal output is stable, such as air pressure change caused by stirring; the actual value or the percentage value of the output limit number is displayed through the nixie tube, the display is visual, and the setting is convenient and quick.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
FIG. 1 is a schematic structural diagram of a bubble level transmitter according to one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bubble level transmitter according to one embodiment of the present invention;
wherein: a housing 1; an upper housing 11; a lower housing 12; a circuit board 2; an input terminal 31; an output terminal 32; an air inlet 4; the air compression device 5, the first air pipe 61; a second air pipe 62; a third air pipe 63; a fourth air tube 64; a tee joint 7; and an air pipe regulating valve 8.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The bubble type liquid level transmitter of the present embodiment, as shown in fig. 1, includes a housing 1, a circuit board 2, an input terminal 31, an output terminal 32, and an air inlet 4, where the circuit board 2 is disposed inside the housing 1, the air inlet 4 is disposed on one side of the housing 1, and the input terminal 31 and the output terminal 32 are both disposed on the other side of the housing 1 opposite to the air inlet 4;
the circuit board 2, the input terminal 31 and the output terminal 32 are all electrically connected with a power supply, the circuit board 2 is electrically connected with the input terminal 31, the circuit board 2 converts the pressure signal into a first analog signal, the input terminal 31 receives the first analog signal, and the output terminal 32 outputs the first analog signal.
Bubble formula level transmitter is used for detecting the jar of liquid level and intakes, stretches the cylinder bottom with tracheal one end, and tracheal other end and air compressor intercommunication make the gas of trachea bottom overflow through air compressor compressed air and form the bubble and produce the barometer signal, and the barometer signal is gone into gas port 4 by the trachea, and circuit board 2 receives the barometer signal and turns into a first analog signal with the barometer signal, input terminal 31 receives a analog signal, output terminal 32 outputs a analog signal. The bubble type air pressure input transducer has the advantages that the transducer is slightly interfered by external air pressure, the signal output is stable, and the air pressure changes caused by stirring.
Preferably, the circuit board 2 includes a CPU processor, an air pressure detecting element, and an AD conversion module, the air pressure detecting element converts a pressure signal into a voltage signal, the voltage signal is converted into a first analog signal by the AD conversion module and is input to the CPU processor, and the CPU processor transmits the first analog signal to the input terminal 31.
The air pressure detection element converts a pressure signal into a voltage signal and transmits the voltage signal to the AD conversion module, the AD conversion module converts the voltage signal into a first analog signal and transmits the first analog signal to the CPU processor, the CPU processor transmits the first analog signal to the input terminal 31, and the first analog signal can be a voltage signal of 0-10V or 0-5V, and can also be a current signal of 4-20mA or 0-20 mA.
Preferably, the digital tube is further included, and the digital tube receives the first analog signal output by the output terminal 31 and displays an output numerical value.
The nixie tube is used for displaying output numerical values, can be set to display output actual values and can also be set to display output percentage values, the display is visual, and the setting is convenient and fast.
Preferably, as shown in fig. 1, the housing 1 includes an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 are fastened by screws.
Form a confined space through last shell 11 and lower shell 12, circuit board 2 has dustproof, anti-interference effect in locating the confined space, moreover through the dismantled and assembled mode of screw, the later stage maintenance nursing of being convenient for.
Preferably, as shown in fig. 2, the air compressing device further comprises an air compressing device 5, a first air pipe 61, a second air pipe 62, a third air pipe 63 and a tee joint 7, wherein one end of each of the first air pipe 61, the second air pipe 62 and the third air pipe 63 is respectively communicated with the tee joint 7, the other end of the first air pipe 61 extends into the bottom of the water cylinder, the other end of the second air pipe 62 is communicated with the air inlet 4, the other end of the third air pipe 63 is communicated with the air compressing device 5, and the air compressing device 5 compresses air.
The first air pipe 61, the second air pipe 62 and the third air pipe 63 are communicated with each other, when the air compression device 5 compresses air, the other end of the first air pipe 61 exhausts air to the water cylinder to form steam bubbles, air pressure in the first air pipe is changed, the air pressure in the second air pipe 62 is changed and finally keeps consistent with the air pressure in the first air pipe due to the fact that the first air pipe 61 is communicated with the second air pipe 62, air in the second air pipe 62 enters the shell through the air inlet 4, and the air pressure detecting element detects the pressure of the entering air to form an air pressure signal.
Preferably, as shown in fig. 2, the air pipe adjusting valve 8 is further included, one end of the air pipe adjusting valve 8 is communicated with the tee joint 7 through a third air pipe 63, the other end of the air pipe adjusting valve 8 is communicated with the air compressing device 5 through a fourth air pipe 64, and the air pipe adjusting valve adjusts the air compression amount of the air compressing device 5.
Air compression is controlled by controlling the air pipe regulating valve 8, so that the generation rate of bubbles is controlled, the bubbles are controlled to be in the optimal position of the air pipe regulating valve 8 when overflowing, and the air pressure signal transmitted to the liquid level position changer cannot be too large or too small, so that the air pressure signal is stably input.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. Bubble type liquid level transmitter, its characterized in that: the circuit board is arranged in the shell, the air inlet is arranged on one side of the shell, and the input terminal and the output terminal are arranged on the other side of the shell opposite to the air inlet;
the circuit board, the input terminal and the output terminal are all electrically connected with a power supply, the circuit board is electrically connected with the input terminal, the circuit board converts the pressure signal into a first analog signal, the input terminal receives the first analog signal, and the output terminal outputs the first analog signal.
2. The bubble level transmitter of claim 1, wherein: the circuit board comprises a CPU processor, an air pressure detection element and an AD conversion module, wherein the air pressure detection element converts a pressure signal into a voltage signal, the voltage signal is converted into a first analog signal through the AD conversion module and is input into the CPU processor, and the CPU processor transmits the first analog signal to an input terminal.
3. The bubble level transmitter of claim 2, wherein: the digital tube receives the first analog signal output by the output terminal and displays an output numerical value.
4. The bubble level transmitter of claim 2, wherein: the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are locked and fixed through screws.
5. The bubble level transmitter of claim 1, wherein: still include air compressor arrangement, first trachea, second trachea, third trachea and tee bend, first trachea, second trachea and third trachea three's one end communicates with the tee bend respectively, at the bottom of the first tracheal other end stretches into the jar, the tracheal other end of second and income gas port intercommunication, the tracheal other end of third with air compressor arrangement intercommunication, air compressor arrangement compressed air.
6. The bubble level transmitter of claim 5, wherein: still include the trachea governing valve, the one end of trachea governing valve is passed through third trachea and tee bend intercommunication, the other end of trachea governing valve passes through fourth trachea and air compression device intercommunication, trachea governing valve adjusts air compression volume of air compression device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921836348.9U CN210346831U (en) | 2019-10-29 | 2019-10-29 | Bubble type liquid level transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921836348.9U CN210346831U (en) | 2019-10-29 | 2019-10-29 | Bubble type liquid level transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210346831U true CN210346831U (en) | 2020-04-17 |
Family
ID=70179337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921836348.9U Expired - Fee Related CN210346831U (en) | 2019-10-29 | 2019-10-29 | Bubble type liquid level transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210346831U (en) |
-
2019
- 2019-10-29 CN CN201921836348.9U patent/CN210346831U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |