CN116105916A - Air bag detection device for cold and hot source process water buffer tank - Google Patents
Air bag detection device for cold and hot source process water buffer tank Download PDFInfo
- Publication number
- CN116105916A CN116105916A CN202310071693.2A CN202310071693A CN116105916A CN 116105916 A CN116105916 A CN 116105916A CN 202310071693 A CN202310071693 A CN 202310071693A CN 116105916 A CN116105916 A CN 116105916A
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- Prior art keywords
- logic controller
- liquid level
- level sensor
- pressure
- air bag
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000012423 maintenance Methods 0.000 claims abstract description 15
- 238000007689 inspection Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
Abstract
The invention particularly relates to an air bag detection device of a cold and hot source process water buffer tank, which comprises a pressure sensor, a liquid level sensor, a signal converter, a logic controller and a touch screen, wherein the pressure sensor is connected with the liquid level sensor; the pressure sensor is arranged at the top of the buffer tank shell, the liquid level sensor is arranged at the bottom of the buffer tank shell, the pressure sensor and the liquid level sensor are connected to the signal converter through signal wires, the signal converter is connected to the logic controller, and the logic controller is connected with the touch screen. The whole set of device can monitor the buffer tank in real time and detect the internal state of the buffer tank at any time. If the air bag is damaged, the touch screen can give an alarm, so that maintenance personnel can be warned to maintain in time, and safety accidents are avoided.
Description
Technical Field
The invention belongs to the technical field of airbag safety detection, and particularly relates to an airbag detection device for a cold and hot source process water buffer tank.
Background
The cold and hot source process water buffer tank has the function of eliminating impact force caused by water circulation in water system circulation, and has the function of stabilizing and unloading. When the water pressure in the system slightly changes, the automatic expansion and contraction of the buffer tank air bag can have a certain buffer effect on the change of the water pressure, so that the stable water pressure of the system can be ensured, the water pump can not be frequently started due to the change of the pressure, and the water pump is prevented from being damaged due to frequent starting and the running stability of the water system is kept. If the air bag in the buffer tank is broken, the process water in the air bag flows out to cause the buffer tank to lose the buffer function, the pressure in the water system pipeline becomes high, and other safety problems are caused by oscillation of the process water pipeline or unstable pressure of water supply and return.
If the cold and hot source process water buffer tank is in use, the air bags in the buffer tank are broken, and the internal process water flows out to cause the buffer tank to lose the buffering effect, so that the process water pressure of a water system pipeline is unstable, the process water pipeline is easy to oscillate, and the unstable supply and return water pressure of test equipment using the process water can be caused. Safety problems can occur, and poor equipment temperature control can also be caused, so that the experimental progress is influenced.
Disclosure of Invention
The invention provides a cold and hot source process water buffer tank air bag detection device aiming at the problems. The invention utilizes the pressure detection device and the liquid level detection device to detect the outer space of the air bag 2 in the buffer tank. When the detection device detects that the air pressure fluctuation exceeds a limit value or fluid exists, the pressure detection device or the liquid level detection device feeds an alarm signal back to the logic controller 7 through the signal converter 6, and the logic controller 7 controls the alarm device to give an alarm, so that operation and maintenance personnel can find out problems in time and process the problems.
The device comprises a pressure sensor 4, a liquid level sensor 5, a signal converter 6, a logic controller 7 and a touch screen 8; the pressure sensor 4 is arranged at the top of the buffer tank shell 1, the liquid level sensor 5 is arranged at the bottom of the buffer tank shell 1, the pressure sensor 4 and the liquid level sensor 5 are connected to the signal converter 6 through signal wires, the signal converter 6 is connected to the logic controller 7, and the logic controller 7 is connected with the touch screen 8.
Further, the device comprises a pressure sensor base 3-1, and the pressure sensor 4 is mounted on the buffer tank housing 1 through the pressure sensor base 3-1.
Further, the device also comprises a liquid level sensor base 3-2, and the liquid level sensor 5 is arranged on the buffer tank shell 1 through the liquid level sensor base 3-2.
Further, when the buffer tank works, the process water flows into the air bag 2, 5bar of compressed air is arranged between the buffer tank shell 1 and the air bag 2, and a pressure difference is formed between the compressed air and the water system water inlet pressure.
Further, when the air bag 2 is ruptured, water flowing from the inside is detected by the liquid level sensor 5, and a change in the pressure of the compressed air is detected by the pressure sensor 4.
Further, the signal converter 6 collects the signal of the liquid level sensor 5 and inputs the signal into the logic controller 7; the signal converter 6 collects the signal of the pressure sensor 4 and inputs the signal into the logic controller 7.
Further, a pressure alarm threshold value is set in the logic controller 7, and the corresponding pressure value is less than or equal to 4.2bar; when the logic controller 7 detects that the signal of the liquid level sensor 5 changes and the pressure value of the pressure sensor 4 is smaller than 4.2bar, the air bag is judged to leak water.
Further, if the logic controller 7 judges that the air bag leaks, the logic controller 7 gives an alarm prompt through the touch screen 8 at the moment to prompt maintenance personnel to timely carry out maintenance and inspection.
Further, the signal converter 6 converts the collected 5V liquid level sensor 5 signal into a 24V digital quantity signal and inputs the 24V digital quantity signal into the logic controller 7; the signal converter 6 inputs the acquired analog quantity signal of 4-20mA of the pressure sensor 4 into the logic controller 7.
The invention also provides a detection method of the detection device, which comprises the following steps: when the air bag 2 is broken, the pressure change of compressed air is detected by the liquid level sensor 5, the signal converter 6 collects the signal of the liquid level sensor 5 and inputs the signal into the logic controller 7, the signal converter 6 collects the signal of the liquid level sensor 4 and inputs the signal into the logic controller 7, when the logic controller 7 detects that the signal of the liquid level sensor 5 changes and the pressure value of the liquid level sensor 4 is smaller than 4.2bar, the air bag is judged to leak, and at the moment, the logic controller 7 gives an alarm prompt through the touch screen 8 to prompt maintenance personnel to perform maintenance inspection in time.
The beneficial effects of the invention are as follows:
(1) The key point of the invention is that if the air bag 2 inside the buffer tank is broken, the liquid flows out, and the liquid is detected by the liquid level sensor 5; the change in the pressure of the compressed air is detected by the pressure sensor 4 when the airbag 2 is ruptured.
(2) The whole set of device can monitor the buffer tank in real time and detect the internal state of the buffer tank at any time.
(3) If the air bag 2 is damaged, the touch screen 8 can give an alarm, so that maintenance personnel can be warned to maintain in time, and safety accidents are avoided.
Drawings
FIG. 1 is a schematic diagram of a detecting device according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
If the cold and hot source process water buffer tank is in use, the air bags in the buffer tank are broken, and the internal process water flows out to cause the buffer tank to lose the buffering effect, so that the process water pressure of a water system pipeline is unstable, the process water pipeline is easy to oscillate, and the unstable supply and return water pressure of test equipment using the process water can be caused. Safety problems can occur, and poor equipment temperature control can also be caused, so that the experimental progress is influenced.
The invention utilizes the pressure detection device and the liquid level detection device to detect the outer space of the air bag 2 in the buffer tank. When the detection device detects that the air pressure fluctuation exceeds a limit value or fluid exists, the pressure detection device or the liquid level detection device feeds an alarm signal back to the logic controller 7 through the signal converter 6, and the logic controller 7 controls the alarm device to give an alarm, so that operation and maintenance personnel can find out problems in time and process the problems.
The invention is described below in connection with specific embodiments.
The air bag detection device of the cold and hot source process water buffer tank provided by the embodiment of the invention is shown in figure 1, and comprises a pressure sensor 4, a liquid level sensor 5, a signal converter 6, a logic controller 7 and a touch screen 8; the pressure sensor 4 is arranged at the top of the buffer tank shell 1, the liquid level sensor 5 is arranged at the bottom of the buffer tank shell 1, the pressure sensor 4 and the liquid level sensor 5 are connected to the signal converter 6 through signal wires, the signal converter 6 is connected to the logic controller 7, and the logic controller 7 is connected with the touch screen 8.
The device further comprises a pressure sensor mount 3-1, the pressure sensor 4 being mounted on the surge tank housing 1 via the pressure sensor mount 3-1.
The device also comprises a liquid level sensor base 3-2, and the liquid level sensor 5 is arranged on the buffer tank shell 1 through the liquid level sensor base 3-2.
When the buffer tank works, the process water flows into the air bag 2, 5bar of compressed air is arranged between the buffer tank shell 1 and the air bag 2, and a pressure difference is formed between the compressed air and the water inlet pressure of the water system.
When the air bag 2 is ruptured, water flowing from the inside is detected by the liquid level sensor 5, and a change in the pressure of the compressed air is detected by the pressure sensor 4.
The signal converter 6 collects the signal of the liquid level sensor 5 and inputs the signal into the logic controller 7; the signal converter 6 collects the signal of the pressure sensor 4 and inputs the signal into the logic controller 7.
The logic controller 7 is internally provided with a pressure alarm threshold value, and the corresponding pressure value is less than or equal to 4.2bar; when the logic controller 7 detects that the signal of the liquid level sensor 5 changes and the pressure value of the pressure sensor 4 is smaller than 4.2bar, the air bag is judged to leak water.
If the logic controller 7 judges that the air bag leaks, the logic controller 7 gives an alarm prompt through the touch screen 8 at the moment to prompt maintenance personnel to timely carry out maintenance and inspection.
The signal converter 6 converts the collected 5V liquid level sensor 5 signal into a 24V digital quantity signal and inputs the 24V digital quantity signal into the logic controller 7; the signal converter 6 inputs the acquired analog quantity signal of 4-20mA of the pressure sensor 4 into the logic controller 7.
The embodiment also provides a detection method of the detection device, which comprises the following steps: when the air bag 2 is broken, the pressure change of compressed air is detected by the liquid level sensor 5, the signal converter 6 collects the signal of the liquid level sensor 5 and inputs the signal into the logic controller 7, the signal converter 6 collects the signal of the liquid level sensor 4 and inputs the signal into the logic controller 7, when the logic controller 7 detects that the signal of the liquid level sensor 5 changes and the pressure value of the liquid level sensor 4 is smaller than 4.2bar, the air bag is judged to leak, and at the moment, the logic controller 7 gives an alarm prompt through the touch screen 8 to prompt maintenance personnel to perform maintenance inspection in time.
Claims (10)
1. The air bag detection device of the cold and hot source process water buffer tank is characterized by comprising a pressure sensor (4), a liquid level sensor (5), a signal converter (6), a logic controller (7) and a touch screen (8); the pressure sensor (4) is arranged at the top of the buffer tank shell (1), the liquid level sensor (5) is arranged at the bottom of the buffer tank shell (1), the pressure sensor (4) and the liquid level sensor (5) are connected to the signal converter (6) through signal wires, the signal converter (6) is connected to the logic controller (7), and the logic controller (7) is connected with the touch screen (8).
2. The detection device according to claim 1, characterized in that the device further comprises a pressure sensor mount (3-1), the pressure sensor (4) being mounted on the buffer vessel housing (1) by means of the pressure sensor mount (3-1).
3. The detection device according to claim 1, characterized in that the device further comprises a liquid level sensor mount (3-2), the liquid level sensor (5) being mounted on the buffer vessel housing (1) by means of the liquid level sensor mount (3-2).
4. The device according to claim 1, characterized in that, when the buffer tank is in operation, process water flows into the air bag (2), and 5bar of compressed air is arranged between the buffer tank shell (1) and the air bag (2), and a pressure difference is formed between the process water and the water system water inlet pressure.
5. The detection device according to claim 4, characterized in that when the balloon (2) is ruptured, the water flowing from the inside is detected by the level sensor (5) and the pressure change of the compressed air is detected by the pressure sensor (4).
6. The detection device according to claim 5, characterized in that the signal converter (6) collects the signal of the liquid level sensor (5) and inputs it into the logic controller (7); the signal converter (6) collects the signals of the pressure sensor (4) and inputs the signals into the logic controller (7).
7. The detection device according to claim 6, wherein a pressure alarm threshold is set inside the logic controller (7), and the corresponding pressure value is 4.2bar or less; when the logic controller (7) detects that the signal of the liquid level sensor (5) changes and the pressure value of the pressure sensor (4) is smaller than 4.2bar, the air bag is judged to leak water.
8. The detection device according to claim 7, wherein if the logic controller (7) judges that the air bag leaks, the logic controller (7) gives an alarm prompt through the touch screen (8) to prompt a maintenance person to perform maintenance inspection in time.
9. The detection device according to claim 8, characterized in that the signal converter (6) converts the collected 5V level sensor (5) signal into a 24V digital quantity signal and inputs it into the logic controller (7); the signal converter (6) inputs the analog quantity signal of 4-20mA of the collected pressure sensor (4) into the logic controller (7).
10. A detection method of a detection apparatus according to any one of claims 1 to 9, characterized in that the detection method is: during operation, process water flows into the air bag (2), when the air bag (2) breaks, water flowing out from the inside is detected by the liquid level sensor (5), the pressure change of compressed air is detected by the pressure sensor (4), the signal converter (6) collects signals of the liquid level sensor (5) and inputs the signals of the logic controller (7), the signal converter (6) collects signals of the pressure sensor (4) and inputs the signals of the logic controller (7), when the logic controller (7) detects that the signals of the liquid level sensor (5) change and the pressure value of the pressure sensor (4) is smaller than 4.2bar, the air bag is judged to leak, and at the moment, the logic controller (7) carries out alarm prompt through the touch screen (8) to prompt maintenance personnel to maintain and check in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310071693.2A CN116105916A (en) | 2023-01-18 | 2023-01-18 | Air bag detection device for cold and hot source process water buffer tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310071693.2A CN116105916A (en) | 2023-01-18 | 2023-01-18 | Air bag detection device for cold and hot source process water buffer tank |
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| Publication Number | Publication Date |
|---|---|
| CN116105916A true CN116105916A (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310071693.2A Pending CN116105916A (en) | 2023-01-18 | 2023-01-18 | Air bag detection device for cold and hot source process water buffer tank |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140305201A1 (en) * | 2013-04-12 | 2014-10-16 | Joe David Watson | Electronic liquid level sensing device and gauge for liquid-immersed power transformers, reactors and similar equipment |
| CN208948060U (en) * | 2018-08-06 | 2019-06-07 | 南京河西远大能源服务有限公司 | A kind of expansion drum |
| CN209012408U (en) * | 2018-11-07 | 2019-06-21 | 新昌县杰创控股有限公司 | A kind of expansion drum |
| CN110430734A (en) * | 2019-08-12 | 2019-11-08 | 常州博瑞电力自动化设备有限公司 | The voltage stabilization water filling device and leakage monitoring method of closed circulating cooling system |
| CN114563145A (en) * | 2022-04-29 | 2022-05-31 | 常州瓦迈机电设备有限公司 | A leak testing equipment for expansion tank |
| CN216865328U (en) * | 2021-09-24 | 2022-07-01 | 江苏汉盛海洋装备技术有限公司 | Variable-frequency water supply device with liquid leakage detection function |
-
2023
- 2023-01-18 CN CN202310071693.2A patent/CN116105916A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140305201A1 (en) * | 2013-04-12 | 2014-10-16 | Joe David Watson | Electronic liquid level sensing device and gauge for liquid-immersed power transformers, reactors and similar equipment |
| CN208948060U (en) * | 2018-08-06 | 2019-06-07 | 南京河西远大能源服务有限公司 | A kind of expansion drum |
| CN209012408U (en) * | 2018-11-07 | 2019-06-21 | 新昌县杰创控股有限公司 | A kind of expansion drum |
| CN110430734A (en) * | 2019-08-12 | 2019-11-08 | 常州博瑞电力自动化设备有限公司 | The voltage stabilization water filling device and leakage monitoring method of closed circulating cooling system |
| CN216865328U (en) * | 2021-09-24 | 2022-07-01 | 江苏汉盛海洋装备技术有限公司 | Variable-frequency water supply device with liquid leakage detection function |
| CN114563145A (en) * | 2022-04-29 | 2022-05-31 | 常州瓦迈机电设备有限公司 | A leak testing equipment for expansion tank |
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