Quantitative analysis test tool for influence of sensor bubbles

Abstract

The utility model discloses a sensor bubble influence quantitative analysis test tool which comprises a liquid tank, a first through hole is formed in the lower portion of the liquid tank, a second through hole is formed in the middle of the liquid tank, an exhaust hole is formed in the top of the liquid tank, and a temperature control device is arranged in the liquid tank; one end of the liquid passage is communicated with the liquid tank through the first through hole, and the other end is communicated with the liquid tank through the second through hole; the gas injection passage is communicated with the liquid passage through a three-way gas injection valve, a one-way check valve is arranged in the gas injection passage, the flowing direction of fluid from the three-way gas injection valve into the liquid passage is limited, and the gas injection passage is further provided with a bubble cutting device, a gas flow adjusting device and a pressure adjusting valve; the oil pump is arranged at one end close to the liquid passage and is positioned at the downstream of the three-way gas injection valve; and the sensor is arranged on the liquid passage, communicates with the liquid passage and is positioned downstream of the oil pump. By means of the tool, environmental conditions related to bubbles and pressure in liquid can be accurately set, and then the anti-interference capacity of the sensor is accurately evaluated.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying, and in particular relates to a sensor bubble influence quantitative analysis test tool. Background Art

[0002] Sensors used for reading liquid parameters are affected by bubbles in the liquid. The sources of bubbles in the liquid generally include dissolved gases, liquid containers or materials. The effects of bubbles on the sensor can be divided into two categories. One is the effect on the flow state of the fluid, and the other is all the adverse effects of the interaction between the bubbles and the experiment itself. In terms of fluid instability, due to the presence of bubbles, bubbles can expand or contract in the direction of flow, which will cause instability in the flow rate and flow rate of the fluid, thus affecting the sensor readings. In terms of increased compliance, when bubbles are stuck in the fluid channel, the time required to reach pressure equilibrium will increase. In fact, when a pressure change is applied, the bubble will absorb part of the pressure by expanding or contracting. This situation can also cause unstable sensor readings. In terms of increased resistance, when a bubble is in a fluid channel, it can act as an increase in fluid resistance, causing some problems and in some cases affecting the sensor data.

[0003] The existing technology is mainly aimed at the elimination or measurement of bubbles, and there is relatively little research on how to quantitatively control the bubble content in the liquid, so as to quantitatively analyze the impact of bubbles in the liquid on the sensor. There are two ways to eliminate bubbles in the liquid, namely physical method and software method. The physical method includes passing the liquid through a special multi-layer metal container to change its flow rate and direction to eliminate bubbles, or using ultrasonic waves and other methods to eliminate bubbles through vibration, and then sending the liquid after the bubbles are eliminated into the sensor to read the parameters. However, this method is costly and cannot completely eliminate the generation of bubbles. The sensor will still be disturbed by the presence of bubbles in the liquid. The software method mainly observes the data fluctuation of the sensor during the window period, finds the parameter mutation point through the software algorithm, and smoothes or deletes the parameters of the mutation point through the software algorithm. Although this method is low-cost, it directly changes the data generated by the sensor, and there is a lack of judgment criteria for the quality of the algorithm itself, which is not conducive to the evaluation of the sensor's ability to resist bubble interference. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0005] Another object of the utility model is to provide a sensor bubble impact quantitative analysis test tool.

[0006] To this end, the technical solution provided by the utility model is:

[0007] A sensor bubble impact quantitative analysis test tool, comprising:

[0008] A liquid tank, wherein a first through hole is arranged at the lower part and a second through hole is arranged at the middle part, a temperature control device is arranged in the liquid tank, and an exhaust hole is arranged at the top of the liquid tank;

[0009] a liquid passage, one end of which is connected to the liquid tank through the first through hole, and the other end of which is connected to the liquid tank through the second through hole;

[0010] a gas injection passage, which is connected to the liquid passage through a three-way gas injection valve disposed at one end close to the liquid passage, a one-way check valve disposed in the gas injection passage, the one-way check valve limiting the direction of fluid flow from the three-way gas injection valve into the liquid passage, and a bubble cutting device, a gas flow regulating device and a pressure regulating valve disposed on the gas injection passage;

[0011] an oil pump disposed near one end of the liquid passage and downstream of the three-way gas injection valve;

[0012] A sensor is disposed on the liquid passage and communicated with the liquid passage, and the sensor is located downstream of the oil pump.

[0013] Preferably, the sensor bubble impact quantitative analysis test tool further comprises:

[0014] a pressure valve disposed on the liquid passage, wherein the pressure valve is located downstream of the sensor;

[0015] A regulating valve is arranged on the liquid passage, and the regulating valve is located downstream of the pressure valve.

[0016] Preferably, in the sensor bubble impact quantitative analysis test tool, the liquid tank is an oil tank, and a heating rod is provided at the bottom of the oil tank.

[0017] Preferably, in the sensor bubble impact quantitative analysis test tool, the temperature control device is a thermocouple.

[0018] Preferably, in the sensor bubble impact quantitative analysis test tool, the flow rate in the liquid passage is 10-100 ml / min.

[0019] Preferably, in the sensor bubble impact quantitative analysis test tool, the gas flow rate injected into the gas injection passage through the three-way gas injection valve is 5-50 ml / min.

[0020] Preferably, in the sensor bubble impact quantitative analysis test tool, a quick-connect socket is provided on the liquid passage, and the sensor is connected to the liquid passage through the quick-connect socket.

[0021] The utility model has at least the following advantages:

[0022] The utility model simulates the bubble liquid environment in a specific scenario by quantitatively adding corresponding gas into the liquid, and then analyzes the impact of different bubble states on the sensor. The liquid tank is used to store and provide liquid that meets the test temperature requirements. The liquid tank can adjust the liquid level by the capacity of the filled liquid, thereby reducing the possibility of bubbles generated inside the liquid tank. The three-way gas injection valve is used to connect the gas container that needs to be injected, and can be connected to various gas storage tanks or air compressors. Through this set of tooling, the test organization can accurately set the environmental conditions related to bubbles and pressure in the liquid, and then accurately evaluate the anti-interference ability of the sensor.

[0023] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a sensor bubble impact quantitative analysis test tool in one of the schemes of the utility model.

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of a sensor bubble impact quantitative analysis test tool in one solution of the utility model.

[0026] Figure 3 It is a three-dimensional structural schematic diagram of a sensor bubble impact quantitative analysis test tool in one solution of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0028] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that in the description of the present invention, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a sensor bubble impact quantitative analysis test tool, including:

[0031] The liquid tank 1 has a first through hole at the lower part and a second through hole at the middle part. A temperature control device is arranged in the liquid tank 1. An exhaust hole is arranged at the top of the liquid tank 1. Preferably, the exhaust hole is a closable exhaust hole, which is used to discharge bubbles overflowing from the liquid tank after circulation and balance the pressure difference between the inside and outside of the liquid tank after heating.

[0032] a liquid passage, one end of which is connected to the liquid tank 1 through the first through hole, and the other end of which is connected to the liquid tank 1 through the second through hole;

[0033] The gas injection passage is connected to the liquid passage through a three-way gas injection valve 2 arranged at one end near the liquid passage. A one-way check valve is arranged in the gas injection passage, and the one-way check valve limits the direction of the fluid flowing from the three-way gas injection valve 2 to the liquid passage. The gas injection passage is provided with a bubble cutting device, a gas flow regulating device and a pressure regulating valve; the one-way check valve is connected to the gas injection passage to prevent oil from entering the gas flow path. The bubble cutting device breaks the bubbles into small bubbles, and is preferably configured as an adjustable bubble cutting device.

[0034] an oil pump 3, which is arranged near one end of the liquid passage and located downstream of the three-way gas injection valve 2;

[0035] The sensor 4 is disposed on the liquid passage and communicated with the liquid passage. The sensor 4 is located downstream of the oil pump 3 .

[0036] The utility model simulates the bubble liquid environment in a specific scenario by quantitatively adding corresponding gas into the liquid, and then analyzes the impact of different bubble states on the sensor 4. The liquid tank 1 is used to store and provide liquid that meets the test temperature requirements. The liquid tank 1 can adjust the liquid level by the capacity of the filled liquid, thereby reducing the possibility of bubbles generated inside the liquid tank 1. The three-way gas injection valve 2 is used to connect the gas container that needs to be injected, and can be connected to various gas storage tanks or air compressors. Through this set of tooling, the test organization can accurately set the environmental conditions related to bubbles and pressure in the liquid, and then accurately evaluate the anti-interference ability of the sensor 4.

[0037] In the above scheme, as a preference, it also includes:

[0038] The pressure valve 5 is arranged on the liquid passage, and the pressure valve 5 is located downstream of the sensor 4; the specification of the pressure valve 5 is 0-1.5Mpa.

[0039] The regulating valve 6 is arranged on the liquid passage, and the regulating valve 6 is located downstream of the pressure valve 5. The empty pipe pressure of the regulating valve 6 is less than 0.1Mpa, and the withstand pressure is higher than 1.5Mpa.

[0040] In one solution of the present invention, preferably, the liquid tank 1 is an oil tank, and a heating rod is provided at the bottom of the oil tank. The oil tank capacity is 2.5L

[0041] In one solution of the utility model, preferably, the temperature control device is a thermocouple. Thermocouples are easy to assemble, easy to replace, and have high measurement accuracy.

[0042] In one solution of the present invention, preferably, the flow rate in the liquid passage is 10-100 ml / min. The flow rate in the liquid passage is controlled by an oil pump 3 .

[0043] In one of the schemes of the utility model, as a preference, the gas flow rate of the gas injection passage through the three-way gas injection valve 2 is 5-50 ml / min.

[0044] In one solution of the present invention, preferably, a quick-connect socket is provided on the liquid passage, and the sensor 4 is connected to the liquid passage through the quick-connect socket.

[0045] In one embodiment of the present invention, a sensor 4 bubble impact quantitative analysis test tool comprises:

[0046] The liquid tank 1 has a first through hole at the lower part and a second through hole in the middle part. A temperature control device 101 is arranged in the liquid tank 1. The liquid tank 1 is an oil tank, and a heating rod is arranged at the bottom of the oil tank. The temperature control device 101 is a thermocouple. Thermocouples are easy to assemble and replace, and have high measurement accuracy. The capacity of the oil tank is 2.5L. A closable exhaust hole is arranged on the top of the oil tank to discharge bubbles overflowing from the oil tank after circulation and balance the pressure difference inside and outside the oil tank after heating.

[0047] a liquid passage, one end of which is connected to the liquid tank 1 through the first through hole, and the other end of which is connected to the liquid tank 1 through the second through hole;

[0048] The gas injection passage is connected to the liquid passage through a three-way gas injection valve 2 arranged at one end close to the liquid passage; the gas flow rate of the gas injection passage through the three-way gas injection valve 2 is 5-50ml / min. It is adjusted within this range according to actual needs. A one-way check valve is arranged in the gas injection passage, and the one-way check valve limits the direction of the fluid flowing from the three-way gas injection valve 2 to the liquid passage. An adjustable bubble cutting device, a gas flow regulating device and a pressure regulating valve are arranged on the gas injection passage; the adjustable bubble cutting device breaks the bubbles into small bubbles.

[0049] The oil pump 3 is arranged near one end of the liquid passage and downstream of the three-way gas injection valve 2; the flow rate in the liquid passage is 10-100 ml / min. The flow rate in the liquid passage is controlled by the oil pump 3.

[0050] The sensor 4 is disposed on the liquid passage and communicated with the liquid passage. The sensor 4 is located downstream of the oil pump 3 .

[0051] The pressure valve 5 is arranged on the liquid passage, and the pressure valve 5 is located downstream of the sensor 4; the specification of the pressure valve 5 is 0-1.5Mpa.

[0052] The regulating valve 6 is arranged on the liquid passage, and the regulating valve 6 is located downstream of the pressure valve 5. The empty pipe pressure of the regulating valve 6 is less than 0.1Mpa, and the withstand pressure is higher than 1.5Mpa.

[0053] The liquid passage is provided with a quick-connect socket, and the sensor 4 is connected to the liquid passage through the quick-connect socket.

[0054] This tooling includes an oil tank with a temperature control device 101 and a metering oil pump 3, a set of three-way gas injection valves 2, and corresponding pressure valves 5 and regulating valves 6. The utility model simulates the bubble liquid environment in a specific scenario by quantitatively adding corresponding gas into the liquid, and then analyzes the influence of different bubble states on the sensor 4. The oil tank is used to store and provide liquid that meets the test temperature requirements. The oil tank can adjust the liquid level by the volume of the injected liquid, thereby reducing the possibility of bubbles inside the oil tank. The three-way gas injection valve 2 is used to connect the gas container to be injected, and can be connected to various gas storage tanks or air compressors. The tooling pipeline has a quick-connect socket for connecting different liquid sensors 4. For the "through-type" liquid sensor 4, it can be directly connected to its oil inlet and outlet; for the "immersion type" liquid sensor 4, the pipeline can be connected to the tooling component used to accommodate the immersion liquid. The pressure valve 5 and the regulating valve 6 are used to monitor and control the overall pressure inside the tooling to ensure that the gas volume entering the tooling is maintained at a certain level.

[0055] By using the metered tool, the sensor 4 can read its measurement readings for the same set of test liquid samples under different bubble environments. By accurately adjusting the flux and pressure of gas entering the liquid, the measurement readings of the liquid sensor 4 under different gas contents and pressures can be tested. By evaluating and comparing multiple sets of data, the interference of bubbles on the sensor 4 can be quantitatively analyzed. Through this tool, the test organization can accurately set the environmental conditions related to bubbles and pressure in the liquid, and then accurately evaluate the anti-interference ability of the sensor 4.

[0056] The number of modules and processing scale described here are used to simplify the description of the utility model. Application, modification and variation of the utility model are obvious to those skilled in the art.

[0057] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A sensor bubble impact quantitative analysis test tool, characterized in that: include: A liquid tank, wherein a first through hole is arranged at the lower part and a second through hole is arranged at the middle part, a temperature control device is arranged in the liquid tank, and an exhaust hole is arranged at the top of the liquid tank; a liquid passage, one end of which is connected to the liquid tank through the first through hole, and the other end of which is connected to the liquid tank through the second through hole; a gas injection passage, which is connected to the liquid passage through a three-way gas injection valve disposed at one end close to the liquid passage, a one-way check valve disposed in the gas injection passage, the one-way check valve limiting the direction of fluid flow from the three-way gas injection valve into the liquid passage, and a bubble cutting device, a gas flow regulating device and a pressure regulating valve disposed on the gas injection passage; an oil pump disposed near one end of the liquid passage and downstream of the three-way gas injection valve; A sensor is disposed on the liquid passage and communicated with the liquid passage, and the sensor is located downstream of the oil pump.

2. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: Also includes: a pressure valve disposed on the liquid passage, wherein the pressure valve is located downstream of the sensor; A regulating valve is arranged on the liquid passage, and the regulating valve is located downstream of the pressure valve.

3. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: The liquid tank is an oil tank, and a heating rod is arranged at the bottom of the oil tank.

4. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: The temperature control device is a thermocouple.

5. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: The flow rate in the liquid passage is 10-100 ml / min.

6. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: The gas flow rate of the gas injected into the gas injection passage through the three-way gas injection valve is 5-50 ml / min.

7. The sensor bubble impact quantitative analysis test tool as claimed in claim 1, characterized in that: The liquid passage is provided with a quick-connect socket, and the sensor is connected to the liquid passage through the quick-connect socket.

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