Pressurizing and temperature raising device and test method

Abstract

The invention discloses a pressurizing and temperature raising device and a test method, and relates to the technical field of industrial oil liquid circulating systems. Comprising a main oil tank; the temperature rising unit comprises two sets of conveying pipes arranged on the main oil tank, an oil pump, a control valve and a sensor which are arranged on the conveying pipes, the conveying pipes comprise throttling pipes movably connected between the two sets of conveying pipes, throttling holes are formed in the throttling pipes, and the sensors are arranged on the throttling holes. The throttling hole is communicated with the conveying pipe, and the hole diameter of the throttling hole is adjusted between 2 mm and 10 mm. According to the device, the temperature of an oil circulating system is increased through the flowing characteristic of oil and the process of converting kinetic energy into heat energy, high energy consumption and potential safety hazards of a traditional electric heater are avoided, the oil generates pressure difference in a pipeline by designing a bypass system of a throttling hole, and therefore the flowing speed of the oil is increased, and the heating efficiency is improved. Kinetic energy generated in the flowing process is converted into heat energy, and the oil temperature is increased.

Description

Technical Field

[0001] The invention relates to the technical field of industrial oil circulation systems, and in particular to a pressurizing and temperature raising device and a testing method. Background Art

[0002] In the current design of industrial oil circulation systems, the low temperature environment in winter often causes the oil temperature to fail to meet the standard, which in turn affects the normal operation of the equipment.

[0003] Traditional heating methods usually rely on electric heating devices, such as heating rods or heaters installed at the bottom of the tank. These devices not only increase energy consumption, but also have certain safety hazards, such as local overheating or failure of the electric heating device, which may cause system shutdown. In addition, the operating cost of electric heating equipment is high, and long-term use does not conform to the trend of energy conservation and consumption reduction. Summary of the invention

[0004] In view of the problems existing in the above-mentioned existing pressurizing and temperature raising devices, the present invention is proposed.

[0005] Therefore, the present invention provides a pressurized temperature raising device, the purpose of which is to solve the problem that traditional heating methods have high energy consumption and great safety hazards.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pressurizing and temperature raising device, comprising a main oil tank;

[0007] The temperature raising unit comprises two groups of delivery pipes arranged on the main oil tank, the two groups of delivery pipes forming a circulating oil circuit, an oil pump arranged on the delivery pipes, a control valve and a sensor.

[0008] As a preferred solution of the pressurized and heated device of the present invention, the delivery pipe includes a throttling pipe, the throttling pipe is movably connected between two groups of delivery pipes, and a throttling hole is arranged in the throttling pipe.

[0009] As a preferred solution of the pressurized temperature raising device of the present invention, the throttling hole is connected to the conveying pipe, and the aperture of the throttling hole is adjusted between 2-10 mm.

[0010] As a preferred solution of the pressurized and heated device of the present invention, a conical surface is formed between the inner wall of the throttling tube and the throttling hole, and the conical surface constitutes a gradually shrinking flow path.

[0011] As a preferred solution of the pressurizing and temperature raising device of the present invention, the sensors are arranged in several groups and are evenly distributed at the main oil tank inlet and the circulating oil circuit.

[0012] The present invention also provides the following technical solution: a pressurized temperature test method, which includes a preparation stage, initial debugging, starting the oil circulation system, allowing the oil to flow normally at room temperature, and recording the initial temperature of each point;

[0013] In the data input stage, different throttle orifice diameters are set to correspond to fixed flow values;

[0014] During the experimental phase, the oil circulation system was operated under various set conditions, and the data were recorded and analyzed.

[0015] As a preferred embodiment of the pressurized temperature test method of the present invention, in the preparation stage, the oil circulation system is started to allow the oil to flow without throttling, and the initial temperatures of key positions at the main oil tank inlet, the delivery pipe outlet and the oil pump outlet are recorded.

[0016] As a preferred solution of the pressurized temperature test method of the present invention, in the data input stage, the flow value is fixed respectively, and the influence of throttle holes with different apertures of 2mm, 4mm, 6mm, 8mm and 10mm on the oil temperature is tested one by one.

[0017] As a preferred scheme of the pressurized temperature raising test method described in the present invention, wherein: in the experimental stage, the oil circulation system is operated under various set conditions, and the temperature change data is recorded every 5 minutes, focusing on the temperature difference between the oil tank inlet and the bypass outlet, and through quantitative analysis, the temperature rise efficiency under different apertures and flow rates is calculated, and the optimal combination of throttling hole size and flow rate is evaluated.

[0018] The present invention also provides the following technical solution: a pressurization and temperature raising monitoring system, which includes a data acquisition module, a temperature sensor to measure the oil temperature at the oil tank inlet, the bypass outlet and different positions of the main oil circuit, and a flow sensor to measure the flow rate of the oil;

[0019] The data recording module, the digital converter converts the analog signal of the sensor into a digital signal, the controller receives the sensor input, executes the user-defined logic, and controls the oil pump and control valve output.

[0020] The beneficial effects of the present invention are as follows: through the flow characteristics of the oil itself and the process of converting kinetic energy into thermal energy, the temperature of the oil circulation system is increased, the high energy consumption and safety hazards of traditional electric heaters are avoided, and a bypass system of the throttle hole is designed to generate a pressure difference in the oil in the pipeline, thereby increasing the flow rate of the oil, and the kinetic energy generated during the flow process is converted into thermal energy to effectively increase the oil temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the working process of the pressurizing and temperature raising device of the present invention.

[0023] Figure 2 It is a cross-sectional view of the throttling tube in the pressurizing and temperature raising device of the present invention.

[0024] Figure 3 It is a plan view of the throttling tube in the pressurizing and temperature raising device of the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1, reference Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a pressurized temperature raising device, including a main oil tank 100 which is a container for storing the oil to be heated, a temperature raising unit 200 which is a main system for heating the oil, including two sets of delivery pipes 201, an oil pump 202, a control valve 203 and a sensor 204, which work together to heat the oil through a circulating oil circuit.

[0030] Among them, the delivery pipe 201 is a pipeline constituting a circulating oil circuit, which is used to deliver oil from the main oil tank 100 to the throttling hole 201b, and then deliver it back to the main oil tank 100. It is movably connected between the two groups of delivery pipes 201. A throttling hole 201b is opened in the throttling tube 201a, and a conical surface 201c is formed between the inner wall of the throttling tube 201a and the throttling hole 201b. When the fluid passes through the throttling tube 201a, due to the existence of the conical surface 201c, the fluid channel gradually becomes smaller, forming a gradually shrinking flow path for the throttling hole 201b. The diameter of the throttling hole 201b can be set to, this design makes the fluid increase in speed and reduce in pressure when passing through the throttling hole 201b, thereby achieving a throttling effect.

[0031] Furthermore, a control valve 203 is provided at one end of the throttle tube 201a to control the speed at which the oil flows through the throttle hole 201b. The sensor 204 is not only provided at the inlet of the main oil tank 100, but is also evenly distributed in the circulating oil circuit, so that the temperature change of the oil in the entire system can be monitored more accurately. The sensor 204 includes a temperature sensor 204 and a flow sensor 204. The temperature sensor 204 measures the oil temperature at different positions of the oil tank inlet, the bypass outlet and the main oil circuit, and is evenly distributed at key positions of the oil tank inlet, the bypass outlet and the main oil circuit to ensure comprehensive monitoring of the oil temperature. The flow sensor 204 measures the flow rate of the oil to ensure that the oil circulation meets the set working conditions, and is installed at the outlet of the oil pump 202 or the inlet of the bypass system to monitor the flow rate of the oil flow.

[0032] Example 2, reference Figure 1 - Figure 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that when the fluid passes through the throttling hole 201b, the fluid velocity increases due to the reduction in cross-sectional area. According to the Bernoulli equation, the increase in flow velocity will lead to a decrease in pressure.

[0033] Furthermore, the phenomenon between the pressure reduction caused by the throttle hole 201b and the oil temperature heating is adiabatic throttling expansion. When the oil flows through the throttle hole 201b, it undergoes an adiabatic process, in which the pressure energy is converted into kinetic energy, resulting in an increase in the flow rate of the oil. According to the first law of thermodynamics, the reduction in pressure energy must be compensated by the change in the internal energy of the oil, which is usually manifested as a change in temperature.

[0034] In the absence of heat exchange, the pressure of the oil decreases when passing through the throttle hole 201b, resulting in an increase in the internal energy of the oil, which manifests as an increase in temperature. The increase in oil flow rate is due to the conversion of pressure energy into kinetic energy. In this process, the internal energy of the oil increases, resulting in a temperature increase.

[0035] By adjusting the aperture of the throttle hole 201b, the oil flow rate and the degree of pressure reduction can be controlled, thereby affecting the temperature change of the oil. The flow control valve 203 in the bypass system can adjust the oil flow entering the throttle hole 201b to further finely control the temperature of the oil.

[0036] By precisely controlling the aperture of the throttle hole 201b and the flow rate of the oil, this principle can be effectively utilized to increase the temperature of the oil, thereby achieving the purpose of energy saving and improving system efficiency.

[0037] The remaining structures are the same as those of Example 1.

[0038] Example 3, reference Figure 1 - Figure 3 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that, compared with embodiment 2, a pressurized temperature raising test method is further provided.

[0039] Step 1: Initial commissioning

[0040] Determine the system's baseline temperature at room temperature, start the oil circulation system, let the oil flow without throttling, and record the initial temperatures of the tank inlet, bypass outlet, and key locations of the main oil circuit.

[0041] Step 2: Set different throttle hole 201b apertures

[0042] The influence of different throttle hole 201b diameters on the oil temperature was tested. The throttle hole 201b modules with different apertures were replaced, and the flow value was fixed to test the influence of different aperture and flow combinations on the oil temperature.

[0043] Step 3: Record temperature change data

[0044] The temperature data under different settings were collected to analyze the specific effects of the throttle hole 201b diameter and flow rate on the oil temperature. The oil circulation system was operated under various set conditions and the temperature change data was recorded every 5 minutes, with a focus on the temperature difference between the oil tank inlet and the bypass outlet.

[0045] Step 4: Analyze the data

[0046] Through quantitative analysis, the temperature rise efficiency under different apertures and flow rates is calculated, the optimal combination of throttling hole 201b size and flow rate is evaluated, the collected data is analyzed, the temperature rise efficiency is calculated, and the optimal combination of throttling hole 201b aperture and flow rate is found.

[0047] Step 5: Summarize the stability and rise of oil temperature

[0048] Evaluate the stability and rise of oil temperature under different conditions to provide a basis for field application. Based on experimental data, summarize the stability and rise of oil temperature under different throttle hole 201b aperture and flow settings to determine the optimal setting solution.

[0049] Detailed description of the experimental results:

[0050] Aperture 4mm, flow rate 3L / min: After the oil passes through the bypass circulation, the temperature rises by about 4.5°C. This shows that a smaller throttle hole 201b and a lower flow rate can achieve a certain temperature rise effect.

[0051] Aperture 6mm, flow rate 5L / min: The temperature rise reaches 7°C. Compared with the 4mm aperture, the temperature rise effect is more obvious, which shows that increasing the aperture and flow rate can improve the temperature rise effect.

[0052] Aperture 8mm, flow rate 7L / min: The oil temperature rise effect is the most obvious, about 9°C. This may be due to the larger throttle hole 201b and higher flow rate resulting in a greater pressure drop and the effect of kinetic energy conversion into heat energy.

[0053] Aperture greater than 8mm: The oil temperature rise tends to be stable. This may be because the oil flow rate has reached a certain limit, and further increasing the aperture and flow rate has limited effect on improving the temperature rise effect.

[0054] The remaining structure is the same as that of Example 2.

[0055] Example 4, reference Figure 1 - Figure 3 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: compared with embodiment 3, further, a pressurization and temperature raising monitoring system is provided,

[0056] The temperature sensor 204 measures the oil temperature at different positions of the oil tank inlet, bypass outlet and main oil circuit, and is evenly distributed at key positions of the oil tank inlet, bypass outlet and main oil circuit to ensure comprehensive monitoring of the oil temperature. The flow sensor 204 measures the flow of the oil to ensure that the oil circulation meets the set working conditions. It is installed at the outlet of the oil pump 202 or the inlet of the bypass system to monitor the flow of the oil.

[0057] Furthermore, the digital converter converts the analog signal of the sensor 204 into a digital signal. The analog signal is usually not easy to be processed by the digital system, and therefore needs to be converted into a digital signal by an analog-to-digital converter so that the controller can process it. The controller receives the digital signal input by the sensor 204, and performs output control on the oil pump 202 and the control valve 203 according to a preset logic. The controller adjusts the oil pump 202 and the control valve 203 according to the control strategy defined by the user to maintain the oil temperature within the set range.

[0058] Furthermore, the control logic is that the controller adjusts the operating speed or on / off state of the oil pump 202 according to the data of the temperature sensor 204 to change the dynamic conditions of the oil flow, thereby affecting the oil temperature. The controller adjusts the opening of the control valve 203 according to the temperature and flow data to control the flow of oil through the throttle hole 201b to achieve precise temperature control.

[0059] The remaining structure is the same as that of Example 3.

[0060] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible, installation arrangements, use of materials, changes in color, orientation, etc., without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0061] Additionally, in an effort to provide a concise description of example embodiments, all features of an actual implementation may not be described.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pressurized temperature raising device, characterized in that: include, Main fuel tank (100); The temperature increasing unit (200) comprises two groups of delivery pipes (201) arranged on the main oil tank (100), the two groups of delivery pipes (201) forming a circulating oil circuit, an oil pump (202) arranged on the delivery pipes (201), a control valve (203) and a sensor (204).

2. The pressurized temperature raising device according to claim 1, characterized in that: The delivery pipe (201) comprises a throttling pipe (201a), the throttling pipe (201a) being movably connected between two groups of delivery pipes (201), and a throttling hole (201b) being arranged in the throttling pipe (201a).

3. The pressurized temperature raising device according to claim 2, characterized in that: The throttling hole (201b) is connected to the conveying pipe (201), and the aperture of the throttling hole (201b) is adjusted between 2 and 10 mm.

4. The pressurized temperature raising device according to claim 3 is characterized in that: A conical surface (201c) is formed between the inner wall of the throttling tube (201a) and the throttling hole (201b), and the conical surface (201c) constitutes a gradually shrinking flow path.

5. The pressurized temperature raising device according to claim 4, characterized in that: The sensors (204) are arranged in a plurality of groups and are evenly distributed at the inlet of the main oil tank (100) and the circulating oil path.

6. A pressurized temperature test method, comprising the pressurized temperature device according to any one of claims 1 to 5; characterized in that: And the experimental steps are: In the preparation stage, initial debugging is carried out to start the oil circulation system, so that the oil can flow normally at room temperature, and the initial temperature of each point is recorded; In the data input stage, different throttle hole (201b) diameters are set to correspond to fixed flow values ​​respectively; During the experimental phase, the oil circulation system was operated under various set conditions, and the data were recorded and analyzed.

7. The pressurized temperature test method according to claim 6, characterized in that: In the preparation stage, the oil circulation system is started to allow the oil to flow without throttling, and the initial temperatures of key positions such as the inlet of the main oil tank (100), the outlet of the delivery pipe (201) and the outlet of the oil pump (202) are recorded.

8. The pressurized temperature test method according to claim 7, characterized in that: In the data input stage, the flow values ​​are fixed respectively, and the influence of throttle holes (201b) with different apertures of 2mm, 4mm, 6mm, 8mm and 10mm on the oil temperature is tested one by one.

9. The pressurized temperature test method according to claim 8, characterized in that: In the experimental stage, the oil circulation system is operated under various set conditions, and the temperature change data is recorded every 5 minutes, focusing on the temperature difference between the oil tank inlet and the bypass outlet. Through quantitative analysis, the temperature rise efficiency under different apertures and flow rates is calculated, and the optimal combination of the throttle hole (201b) size and flow rate is evaluated.

10. A pressurization and temperature raising monitoring system, characterized in that: include The data acquisition module includes a temperature sensor (204) for measuring the oil temperature at the oil tank inlet, the bypass outlet and different positions of the main oil circuit, and a flow sensor (204) for measuring the flow rate of the oil; The data recording module and the digital converter convert the analog signal of the sensor (204) into a digital signal. The controller receives the input of the sensor (204), executes the user-defined logic, and outputs control to the oil pump (202) and the control valve (203).

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