CN-224216132-U - Water level detection device and water storage system

CN224216132UCN 224216132 UCN224216132 UCN 224216132UCN-224216132-U

Abstract

The utility model discloses a water level detection device and a water storage system, which relate to the field of water level detection, wherein a working probe and a reference probe are arranged in a water storage container and are connected with a sampling module, the sampling module realizes water level detection based on the resistance value of a conducting loop formed by the probe and water, meanwhile, an insulating sleeve is arranged on the working probe and/or the reference probe, insulation is formed between a probe part corresponding to the sleeved position of the insulating sleeve and the water, and when the water level changes within the position range corresponding to the insulating sleeve, the change of the resistance value of the conducting loop is very small, and at the moment, the sampling module can realize flow rate detection by combining the length of the insulating sleeve. Through increase and set up insulating cover on the probe and make water level detection device can realize the velocity of flow detection when carrying out water level detection, avoided the risk that the water pipe switching leaked, directly overlap on the probe establish the installation can, do not need the reserve space, application scope is wide.

Inventors

CHEN XIN
YANG QINGSHUAI
SUN BIN
CHEN GUI

Assignees

浙江朗诗德健康饮水设备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (10)

1. A water level detection apparatus, characterized by being applied to a water storage container, comprising: a working probe; The first end of the sampling module is connected with one end of the working probe and is used for outputting power supply voltage to the working probe; One end of the reference probe is connected with the second end of the sampling module and is used for forming a conducting loop based on the liquid in the water storage container and the working probe so that the sampling module can detect the water level according to the resistance value of the conducting loop; And the insulation sleeve is sleeved on the working probe and/or the reference probe and is used for enabling the change rate of the resistance value of the conducting loop to be not more than a preset threshold value when the water level in the water storage container changes within the position range corresponding to the insulation sleeve by utilizing self insulation, so that the sampling module can detect the flow rate according to the length of the insulation sleeve.
2. The water level detection apparatus according to claim 1, wherein the operation probe comprises a low liquid level probe, a medium liquid level probe, and a high liquid level probe, the probe length of the low liquid level probe being longer than the probe length of the medium liquid level probe, the probe length of the medium liquid level probe being longer than the probe length of the high liquid level probe; One end of the low liquid level probe is connected with a first sampling end of the sampling module, one end of the medium liquid level probe is connected with a second sampling end of the sampling module, and one end of the high liquid level probe is connected with a third sampling end of the sampling module.
3. The water level detection device according to claim 2, wherein a plurality of insulating sleeves are sleeved on the low liquid level probe, the medium liquid level probe, the high liquid level probe and the reference probe, and the insulating sleeves on the probes are sleeved on the same position.
4. The water level detection apparatus according to claim 1, further comprising: And one end of the temperature probe is connected with the third end of the sampling module and is used for detecting the temperature in the water storage container, so that the sampling module can detect the water level based on the temperature and the resistance value of the conduction loop.
5. The water level detection apparatus according to any one of claims 1 to 4, wherein the sampling module includes: A connection terminal for connecting the probe leads; The first output end of the power supply module is connected with one end of the reference probe through the wiring terminal and the probe lead and is used for outputting power supply voltage; The first end of the first current limiting module is connected with one end of the working probe through the wiring terminal and the probe lead wire and is connected with the second output end of the power supply module; And the input end of the ADC module is connected with the second end of the first current limiting module and is used for sampling the resistance value of one end of the working probe and converting the resistance value into a digital signal.
6. The water level detection apparatus of claim 5, wherein the sampling module further comprises: The first end of the second current limiting module is connected with the first output end of the power supply module, and the second end of the second current limiting module is connected with one end of the reference probe through the wiring terminal and the probe lead; and/or the number of the groups of groups, And the first end of the third current limiting module is connected with the second output end of the power supply module, and the second end of the third current limiting module is connected with the first end of the first current limiting module.
7. The water level detection apparatus according to claim 5, wherein the power module comprises: The first power supply sub-module is corresponding to the working probe, the input end of the first power supply sub-module is connected with a power supply, and the output end of the first power supply sub-module is connected with one end of the working probe through the wiring terminal and the probe lead and is used for outputting high level when water level detection and flow rate detection are carried out; And the second power supply sub-module is corresponding to the reference probe, the input end of the second power supply sub-module is connected with a power supply, the output end of the second power supply sub-module is connected with one end of the reference probe through the wiring terminal and the probe lead, and the second power supply sub-module is used for outputting a low level when water level detection and flow rate detection are carried out, and outputting a high level when ion balance is carried out.
8. The water level detection apparatus of claim 7, wherein the first power supply sub-module comprises: The 555 timer is characterized in that a power end is connected with a power supply, the ground is grounded, and an output end is connected with one end of the working probe through the wiring terminal and the probe lead; The first end of the first resistor is connected with the power end of the 555 timer; a first diode; The cathode of the second diode is respectively connected with the second end of the first resistor, the anode of the first diode and the discharge end of the 555 timer; the first end of the second resistor is connected with the cathode of the first diode, and the second end of the second resistor is connected with the anode of the second diode; And the first end of the first capacitor is respectively connected with the tap end of the second resistor, the trigger end of the 555 timer and the threshold end of the 555 timer, and the second end of the first capacitor is grounded.
9. The water level detection apparatus of claim 8, wherein the first power sub-module further comprises: And the first end of the second capacitor is connected with the control voltage end of the 555 timer, and the second end of the second capacitor is grounded.
10. A water storage system comprising a water storage container, a probe mount and a water level detection apparatus according to any one of claims 1 to 9, wherein a working probe and a reference probe in the water level detection apparatus are both mounted on the probe mount, and the probe mount is provided on top of the water storage container to fix the working probe and the reference probe in the water storage container.

Description

Water level detection device and water storage system Technical Field The utility model relates to the field of water level detection, in particular to a water level detection device and a water storage system. Background In industrial production and daily life, the proper operation of many devices and systems relies on accurate monitoring and control of water level. Besides monitoring the change of the water level, detecting the flow rate of the fluid is also a key for knowing the flow and the change of the water body and helping control and adjust the water level, so that the detection of the flow rate is realized while detecting the water level, and the detection of the water level is a technical problem which is urgently needed to be solved at present. Taking hot filling of water storage as an example, at present, a liquid level probe is mainly arranged in the hot filling to detect the water level, and a method of arranging a flowmeter at the front end, namely a water inlet end and the rear end, namely a water outlet end of a hot tank is additionally arranged to detect the water inlet flow rate and the water outlet flow rate of the hot tank respectively. But the flowmeter arranged in the waterway can increase the risk of water leakage caused by water pipe switching, and the flowmeter is arranged in a certain reserved space, so that the flowmeter can not be arranged for part of old hot-filling products due to space limitation. Disclosure of utility model The utility model aims to provide a water level detection device and a water storage system, which can detect the flow rate of liquid while detecting the water level. In order to solve the above technical problems, the present utility model provides a water level detection apparatus applied to a water storage container, the water level detection apparatus comprising: a working probe; The first end of the sampling module is connected with one end of the working probe and is used for outputting power supply voltage to the working probe; One end of the reference probe is connected with the second end of the sampling module and is used for forming a conducting loop based on the liquid in the water storage container and the working probe so that the sampling module can detect the water level according to the resistance value of the conducting loop; And the insulation sleeve is sleeved on the working probe and/or the reference probe and is used for enabling the change rate of the resistance value of the conducting loop to be not more than a preset threshold value when the water level in the water storage container changes within the position range corresponding to the insulation sleeve by utilizing self insulation, so that the sampling module can detect the flow rate according to the length of the insulation sleeve. Optionally, the working probe comprises a low liquid level probe, a medium liquid level probe and a high liquid level probe, wherein the probe length of the low liquid level probe is larger than that of the medium liquid level probe, and the probe length of the medium liquid level probe is larger than that of the high liquid level probe; One end of the low liquid level probe is connected with a first sampling end of the sampling module, one end of the medium liquid level probe is connected with a second sampling end of the sampling module, and one end of the high liquid level probe is connected with a third sampling end of the sampling module. Optionally, the low liquid level probe, the medium liquid level probe, the high liquid level probe and the reference probe are all sleeved with a plurality of insulating sleeves, and the insulating sleeves on the probes are all sleeved at the same position. Optionally, the method further comprises: And one end of the temperature probe is connected with the third end of the sampling module and is used for detecting the temperature in the water storage container, so that the sampling module can detect the water level based on the temperature and the resistance value of the conduction loop. Optionally, the sampling module includes: A connection terminal for connecting the probe leads; The first output end of the power supply module is connected with one end of the reference probe through the wiring terminal and the probe lead and is used for outputting power supply voltage; The first end of the first current limiting module is connected with one end of the working probe through the wiring terminal and the probe lead wire and is connected with the second output end of the power supply module; And the input end of the ADC module is connected with the second end of the first current limiting module and is used for sampling the resistance value of one end of the working probe and converting the resistance value into a digital signal. Optionally, the sampling module further includes: The first end of the second current limiting module is connected with the first output end of the power supply module, and the second e