Automatically controlled constant temperature control cabinet based on oil pump startup

Abstract

The present invention discloses an automatic controllable constant temperature control cabinet based on oil pump start-up, which belongs to the technical field of control cabinets. The automatic controllable constant temperature control cabinet based on oil pump start-up includes a control cabinet body, an oil tank assembly is arranged on the side wall of the control cabinet body, a cooling device is arranged inside the control cabinet body, and a control system is also arranged inside the control cabinet body. The oil tank assembly includes an oil tank body, an oil pump, an oil pipe and a temperature sensor, and an oil pump is arranged at the lower end of the oil tank body. The automatic controllable constant temperature control cabinet based on oil pump start-up proposed by the present invention adopts multiple high-precision thermal resistor PT temperature sensors, which are distributed in the oil tank body, the oil pipe and the control cabinet body to monitor the temperature changes in different areas in real time. These sensors can provide accurate and stable temperature measurement data to ensure the temperature control accuracy of the system. When the temperature reaches and stabilizes at the set value, the CPU sends a signal to start the oil pump to circulate the fluid in the system.

Description

Technical Field

[0001] The invention relates to the technical field of control cabinets, in particular to a self-controllable constant temperature control cabinet based on oil pump startup. Background Art

[0002] In many industrial applications, such as petroleum, chemical, and mechanical processing industries, strict requirements are placed on the temperature control of oil and other media in order to ensure the normal operation of equipment and product quality. Traditional temperature control systems usually use manual or semi-automatic methods to adjust the temperature, which is inefficient, slow to respond, and cannot be adjusted to the required temperature in time, and lacks intelligent management. In addition, after reaching the set temperature, traditional systems often have no effective mechanism to maintain the temperature, resulting in large temperature fluctuations, affecting the stability and reliability of the system. Summary of the invention

[0003] The purpose of the present invention is to provide an automatically controllable constant temperature control cabinet based on oil pump start-up. The system adopts multiple high-precision thermal resistor PT temperature sensors, which are distributed inside the oil tank body, oil pipes and control cabinet body to monitor the temperature changes in different areas in real time. These sensors can provide accurate and stable temperature measurement data to ensure the temperature control accuracy of the system. When the temperature reaches and stabilizes at the set value, the CPU sends a signal to start the oil pump to circulate the fluid in the system, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic controllable constant temperature control cabinet based on oil pump start-up, comprising a control cabinet body, an oil tank assembly is arranged on the side wall of the control cabinet body, a cooling device is arranged inside the control cabinet body, and the cooling device is air-cooled so as to quickly take away heat. A control system is also arranged inside the control cabinet body, the oil tank assembly comprises an oil tank body, an oil pump, an oil pipe and a temperature sensor, an oil pump is arranged at the lower end of the oil tank body, and the oil pump is installed below the oil tank body to facilitate the extraction and circulation of fluid, the oil pump is placed at a lower position, and gravity is used to assist the flow, the output end of the oil pump is connected to the oil pipe, and the oil pipe runs through the control cabinet body, when the temperature reaches and stabilizes at the set value, the CPU sends a signal to start the oil pump, so that the fluid circulates in the system to help the heat distribution to be more uniform, a number of temperature sensors are arranged, distributed in the oil tank body, the oil pipe and the control cabinet body, and the temperature of different areas is monitored to ensure the temperature uniformity of the entire system, and the temperature sensor selects a high-precision thermal resistor PT, which can provide accurate and stable temperature measurement data.

[0005] Preferably, a heating plate is provided on one side of the oil tank body, and the heating plate is arranged on the side of the oil tank body away from the control cabinet body. The heating plate directly heats the fluid in the oil tank body, and the heating plate is equipped with an overheating protection device to prevent dry burning.

[0006] Preferably, the control system includes a CPU, a power module, an input / output module, a communication interface and a human-machine interface. The CPU is responsible for receiving data from the temperature sensor and executing corresponding control logic. A PLC microcontroller is selected. The power module provides a stable operating voltage for the control system and other electrical components. The power module has overvoltage and undervoltage protection functions. The input / output module is used to connect the oil tank assembly and the cooling device to realize signal collection and instruction sending. The communication interface is equipped with RS, Ethernet or other industrial communication protocol interfaces to allow remote monitoring and parameter adjustment. The human-machine interface is installed on the control cabinet panel to provide an intuitive operation interface and status display. Users can set temperature parameters and view alarm information through the touch screen.

[0007] Preferably, the cooling device includes an air inlet channel, a drive motor, a first special-shaped shaft, a second special-shaped shaft and an air guide cover. The first special-shaped shaft and the second special-shaped shaft are arranged in the air inlet channel. The end of the first special-shaped shaft away from the second special-shaped shaft is connected to the drive motor. When the drive motor works, it drives the first special-shaped shaft to rotate. The ends of the first special-shaped shaft and the second special-shaped shaft away from each other are movably connected to the control cabinet body through bearings, and the first special-shaped shaft and the second special-shaped shaft are respectively socketed with the air guide cover.

[0008] Preferably, a cooling fan is provided on both the first special-shaped shaft and the second special-shaped shaft, and an air guide cover is provided outside the cooling fan, the air guide cover is movably connected to the first special-shaped shaft and the second special-shaped shaft respectively, and the air guide covers on the first special-shaped shaft and the second special-shaped shaft are symmetrically arranged, and the air guide covers are movably connected to the air inlet channel.

[0009] Preferably, a first push block and a second push block are respectively provided at the ends close to each other of the first special-shaped shaft and the second special-shaped shaft, and the first push block and the second push block are engaged with each other through convex strips and grooves. When the first special-shaped shaft rotates, the second special-shaped shaft is driven to rotate by the first push block and the second push block, and both the first special-shaped shaft and the second special-shaped shaft rotate in a conical path.

[0010] Preferably, the air inlet channel is a curved pipe, and an air inlet is opened on one side of the air inlet channel, the air inlet is fixedly connected to the control cabinet body, and a dust screen is provided on the control cabinet body near the air inlet, and the air filtered by the dust screen enters the air inlet channel from the air inlet, and when the air guide cover is engaged with the end of the air inlet channel, the air guide cover plays a sealing role and can keep the control cabinet body warm, and an arc-shaped slide groove is provided at the end of the air inlet channel, and the arc-shaped slide groove limits the movement path of the air guide cover.

[0011] Preferably, the air guide cover includes an air outlet cone, a sealing cone and an air inlet ring, and the two ends of the air inlet ring are respectively connected to the air outlet cone and the sealing cone. The air outlet cone is arranged at a position of the air guide cover close to the end of the air inlet channel. The wind enters from the middle of the air inlet channel and diffuses to the end of the air inlet channel through the air guide cover. The ends of the air outlet cone and the sealing cone that are away from each other are both socketed with the first special-shaped shaft or the second special-shaped shaft.

[0012] Preferably, the upper and lower ends of the air inlet ring are both provided with sliding balls, the sliding balls are movably connected to the arc-shaped sliding grooves, and the air inlet ring is provided with annularly distributed air inlet holes.

[0013] Preferably, a partition is provided at the bottom of the control cabinet body, and staggered ventilation holes are provided on the partition and the bottom plate of the control cabinet body. The ventilation holes and the air inlet holes form air convection to improve the heat dissipation effect.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The self-controlled constant temperature control cabinet based on oil pump startup proposed by the present invention adopts multiple high-precision thermal resistor PT temperature sensors distributed inside the oil tank body, oil pipe and control cabinet body to monitor the temperature changes in different areas in real time. These sensors can provide accurate and stable temperature measurement data to ensure the temperature control accuracy of the system. When the temperature reaches and stabilizes at the set value, the CPU sends a signal to start the oil pump to circulate the fluid in the system. The oil pump is installed below the oil tank body, using gravity to assist flow and reduce the load on the oil pump. Through the action of the oil pump, the fluid can be evenly distributed in the system to avoid local overheating or overcooling, ensuring the temperature consistency of the entire system. The cooling device adopts an air-cooling design. The first special-shaped shaft and the second special-shaped shaft in the air inlet channel are provided with cooling fans, and blow air into the control cabinet body through the air guide cover. When heat dissipation is required, the air guide cover moves to a position misaligned with the air inlet channel, and external air enters the control cabinet body through the air inlet hole, and forms air convection with the ventilation holes to quickly take away heat and improve the heat dissipation effect. When heat dissipation is not required, the air guide cover is engaged with the end of the air inlet channel to play a sealing role, preventing external cold air from entering the control cabinet body, avoiding temperature fluctuations, and maintaining the temperature stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-view diagram of the self-controllable constant temperature control cabinet based on oil pump startup of the present invention;

[0017] Figure 2 This is a second viewing angle diagram of the self-controllable constant temperature control cabinet based on oil pump startup of the present invention;

[0018] Figure 3 is a structural diagram of a cooling device of the present invention;

[0019] Figure 4 It is an exploded view of the cooling device of the present invention;

[0020] Figure 5 The wind guide cover connection structure diagram of the present invention;

[0021] Figure 6 It is a structural diagram of the first special-shaped shaft and the second special-shaped shaft of the present invention;

[0022] Figure 7 This is a working state diagram of the air guide cover of the present invention.

[0023] In the figure: 1. control cabinet body; 11. dustproof net; 12. partition; 13. ventilation hole; 2. oil tank assembly; 21. oil tank body; 211. heating plate; 22. oil pump; 23. oil pipe; 24. temperature sensor; 3. cooling device; 31. air inlet channel; 311. air inlet; 312. arc slide; 32. drive motor; 33. first special-shaped shaft; 331. first push block; 332. cooling fan; 34. second special-shaped shaft; 341. second push block; 35. air guide cover; 351. air outlet cone; 352. sealing cone; 353. air inlet ring; 3531. slide ball; 3532. air inlet hole; 4. control system. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to solve the problem that the existing traditional temperature control system usually adopts manual or semi-automatic method to adjust the temperature, this method is inefficient, slow to respond, cannot adjust to the required temperature in time, and lacks intelligent management. In addition, after the traditional system reaches the set temperature, there is often no effective mechanism to maintain the temperature, resulting in large temperature fluctuations, affecting the stability and reliability of the system. Figure 1-Figure 7 , this embodiment provides the following technical solutions:

[0026] The self-controllable constant temperature control cabinet based on oil pump start-up includes a control cabinet body 1, an oil tank assembly 2 is arranged on the side wall of the control cabinet body 1, a cooling device 3 is arranged inside the control cabinet body 1, and the cooling device 3 is air-cooled to quickly take away heat. A control system 4 is also arranged in the control cabinet body 1.

[0027] The oil tank assembly 2 includes an oil tank body 21, an oil pump 22, an oil pipe 23 and a temperature sensor 24. The lower end of the oil tank body 21 is provided with an oil pump 22, and the oil pump 22 is installed below the oil tank body 21 to facilitate the extraction and circulation of fluid. The oil pump 22 is placed at a lower position and uses gravity to assist the flow. The oil pump 22 uses a centrifugal pump or a gear pump suitable for the working medium, and has sufficient flow and head to meet the system requirements. The oil pump 22 is controlled to start and stop by the controller through a relay or a frequency converter. The frequency converter can also adjust the speed to optimize energy consumption. The output end of the oil pump 22 is connected to the oil pipe 23, and the oil pipe 23 runs through the control cabinet body 1. When the temperature reaches and stabilizes at the set value, the CPU sends a The signal starts the oil pump 22 to circulate the fluid in the system to help the heat distribution to be more uniform. A heating plate 211 is provided on one side of the oil tank body 21. The heating plate 211 is provided on the side of the oil tank body 21 away from the control cabinet body 1. The heating plate 211 directly heats the fluid in the oil tank body 21. The heating plate 211 is equipped with an overheating protection device to prevent dry burning. A number of temperature sensors 24 are provided, which are distributed in the oil tank body 21, the oil pipe 23 and the control cabinet body 1 to monitor the temperature of different areas to ensure the temperature uniformity of the entire system. The temperature sensor 24 selects a high-precision thermal resistor PT100, which can provide accurate and stable temperature measurement data.

[0028] The control system 4 includes a CPU, a power module, an input / output module, a communication interface and a human-machine interface. The CPU is responsible for receiving data from the temperature sensor 24 and executing corresponding control logic. A PLC microcontroller is selected. The power module provides a stable operating voltage for the control system 4 and other electrical components. The power module has overvoltage and undervoltage protection functions. The input / output module is used to connect the oil tank assembly 2 and the cooling device 3 to realize signal collection and instruction sending. The communication interface is equipped with RS485, Ethernet or other industrial communication protocol interfaces, allowing remote monitoring and parameter adjustment. The human-machine interface is installed on the control cabinet panel, providing an intuitive operation interface and status display. Users can set temperature parameters and view alarm information through the touch screen.

[0029] The cooling device 3 includes an air inlet channel 31, a drive motor 32, a first special-shaped shaft 33, a second special-shaped shaft 34 and an air guide cover 35. The first special-shaped shaft 33 and the second special-shaped shaft 34 are arranged in the air inlet channel 31. The end of the first special-shaped shaft 33 away from the second special-shaped shaft 34 is connected to the drive motor 32. When the drive motor 32 works, it drives the first special-shaped shaft 33 to rotate. The ends of the first special-shaped shaft 33 and the second special-shaped shaft 34 away from each other are movably connected to the control cabinet body 1 through bearings. Cooling fans 332 are arranged on the first special-shaped shaft 33 and the second special-shaped shaft 34. An air guide cover 35 is arranged outside the cooling fan 332. The air guide cover 35 is movably connected to the first special-shaped shaft 33 and the second special-shaped shaft 34 respectively, and the air guide covers 35 on the first special-shaped shaft 33 and the second special-shaped shaft 34 are symmetrically arranged, and the air guide cover 35 is movably connected to the air inlet channel 31.

[0030] The first special-shaped shaft 33 and the second special-shaped shaft 34 are respectively provided with a first push block 331 and a second push block 341 at the ends close to each other. The first push block 331 and the second push block 341 are engaged with each other through convex strips and grooves. When the first special-shaped shaft 33 rotates, the second special-shaped shaft 34 is driven to rotate by the first push block 331 and the second push block 341. The first special-shaped shaft 33 and the second special-shaped shaft 34 both rotate in a conical path.

[0031] The air inlet channel 31 is a curved pipe, and an air inlet port 311 is provided on one side of the air inlet channel 31. The air inlet port 311 is fixedly connected to the control cabinet body 1, and a dustproof net 11 is provided at a position of the control cabinet body 1 near the air inlet port 311. The air filtered by the dustproof net 11 enters the air inlet channel 31 from the air inlet port 311. When the air guide cover 35 is engaged with the end of the air inlet channel 31, the air guide cover 35 plays a sealing role and can keep the control cabinet body 1 warm. An arc-shaped slide groove 312 is provided at the end of the air inlet channel 31. The arc-shaped slide groove 312 limits the movement path of the air guide cover 35. When heat dissipation is required, the air guide cover 35 moves to a position misaligned with the air inlet channel 31, thereby allowing the gas outside the control cabinet body 1 to enter the air guide cover 35 to dissipate heat for the control cabinet body 1.

[0032] The air guide cover 35 includes an air outlet cone 351, a sealing cone 352 and an air inlet ring 353, and the two ends of the air inlet ring 353 are respectively connected to the air outlet cone 351 and the sealing cone 352, wherein the air outlet cone 351 is arranged at a position of the air guide cover 35 close to the end of the air inlet channel 31, and the wind enters from the middle of the air inlet channel 31 and diffuses to the end of the air inlet channel 31 through the air guide cover 35, and the ends of the air outlet cone 351 and the sealing cone 352 that are away from each other are sleeved with the first special-shaped shaft 33 or the second special-shaped shaft 34, and when the first special-shaped shaft 33 and the second special-shaped shaft 34 rotate, the position of the air guide cover 35 is driven to change, and at the same time, in order to limit the air guide cover 35, sliding balls 3531 are arranged at the upper and lower ends of the air inlet ring 353, and the sliding balls 3531 are movably connected to the arc-shaped sliding groove 312. When working, the sliding balls 3531 are moved in the arc-shaped sliding groove The air inlet ring 353 moves or rotates in the groove 312 to adapt to the position change of the first special-shaped shaft 33 and the second special-shaped shaft 34. The air inlet holes 3532 distributed in an annular manner are provided on the air inlet ring 353. The air inlet holes 3532 move with the air inlet ring 353. When heat dissipation is not needed, the air inlet ring 353 moves to engage with the end of the air inlet channel 31 and keeps the position of the air guide cover 35 stationary. The air inlet channel 31 is blocked by the sealing cone 352. When heat dissipation is needed, the air inlet ring 353 is in a state of continuous shaking, and the air inlet holes 3532 on the air inlet ring 353 are constantly shaking to allow air to enter the control cabinet body 1. A partition 12 is provided at the bottom of the control cabinet body 1. Staggered ventilation holes 13 are provided on the partition 12 and the bottom plate of the control cabinet body 1. The ventilation holes 13 and the air inlet holes 3532 form air convection to improve the heat dissipation effect.

[0033] Working process: The temperature sensor 24 monitors the temperature changes in different areas in real time. These sensors transmit temperature data to the CPU. When the temperature is lower than the set value, the CPU will start the heating plate 211 installed on one side of the oil tank body 21 to directly heat the fluid in the oil tank body 21. When the temperature reaches and stabilizes at the set value, the CPU sends a signal to start the oil pump 22. The oil pipe 23 runs through the control cabinet body 1 to circulate the fluid in the system to help the heat distribution be more uniform. At this time, the air guide hood 35 blocks the end of the air inlet channel 31, and the external air cannot enter the control cabinet body 1 from the upper end of the control cabinet body 1 to avoid external cold. The air further lowers the temperature inside the control cabinet body 1. If the temperature is higher than the set value, the CPU will start the cooling device 3, and the driving motor 32 will drive the first special-shaped shaft 33 to rotate, and the second special-shaped shaft 34 will be driven to rotate through the first push block 331 and the second push block 341. The rotating first special-shaped shaft 33 and the second special-shaped shaft 34 drive the cooling fan 332 to rotate, and blow air into the control cabinet body 1 through the air guide cover 35. The air inlet ring 353 is in a state of continuous shaking, and the air inlet hole 3532 continuously supplies air to enter the control cabinet body 1. The air inlet hole 3532 and the ventilation hole 13 exchange heat with the gas inside and outside the control cabinet body 1 to improve the heat dissipation effect.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An oil pump-based self-controllable constant temperature control cabinet, comprising a control cabinet body (1), characterized in that: An oil tank assembly (2) is arranged on the side wall of the control cabinet body (1), a cooling device (3) is arranged inside the control cabinet body (1), and a control system (4) is also arranged inside the control cabinet body (1). The oil tank assembly (2) comprises an oil tank body (21), an oil pump (22), an oil pipe (23) and a temperature sensor (24). The oil pump (22) is arranged at the lower end of the oil tank body (21), and the output end of the oil pump (22) is connected to the oil pipe (23). A plurality of temperature sensors (24) are arranged and distributed inside the oil tank body (21), the oil pipe (23) and the control cabinet body (1).

2. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 1 is characterized in that: A heating plate (211) is provided on one side of the oil tank body (21), and the heating plate (211) is provided on a side of the oil tank body (21) away from the control cabinet body (1).

3. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 1 is characterized in that: The control system (4) comprises a CPU, a power module, an input / output module, a communication interface and a human-machine interface. The CPU is responsible for receiving data from a temperature sensor (24) and executing corresponding control logic. A PLC microcontroller is selected. The power module provides a stable operating voltage for the control system (4) and other electrical components. The input / output module is used to connect the oil tank assembly (2) and the cooling device (3) to realize signal collection and instruction transmission. The communication interface is equipped with an RS485, Ethernet or other industrial communication protocol interface. The human-machine interface is installed on a control cabinet panel.

4. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 1 is characterized in that: The cooling device (3) comprises an air inlet channel (31), a drive motor (32), a first special-shaped shaft (33), a second special-shaped shaft (34) and an air guide cover (35). The first special-shaped shaft (33) and the second special-shaped shaft (34) are arranged in the air inlet channel (31). One end of the first special-shaped shaft (33) away from the second special-shaped shaft (34) is connected to the drive motor (32). One end of the first special-shaped shaft (33) and the second special-shaped shaft (34) away from each other is movably connected to the control cabinet body (1) through a bearing. The first special-shaped shaft (33) and the second special-shaped shaft (34) are respectively sleeved with the air guide cover (35).

5. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 4 is characterized in that: The first special-shaped shaft (33) and the second special-shaped shaft (34) are both provided with a cooling fan (332), and an air guide cover (35) is provided outside the cooling fan (332). The air guide cover (35) is movably connected to the first special-shaped shaft (33) and the second special-shaped shaft (34), respectively, and the air guide covers (35) on the first special-shaped shaft (33) and the second special-shaped shaft (34) are symmetrically arranged, and the air guide cover (35) is movably connected to the air inlet channel (31).

6. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 5 is characterized in that: A first push block (331) and a second push block (341) are respectively arranged at the ends of the first special-shaped shaft (33) and the second special-shaped shaft (34) that are close to each other. The first push block (331) and the second push block (341) are engaged with each other through a convex strip and a concave groove.

7. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 6 is characterized in that: The air inlet channel (31) is a curved pipe, and an air inlet (311) is provided on one side of the air inlet channel (31). The air inlet (311) is fixedly connected to the control cabinet body (1), and a dustproof net (11) is provided at a position of the control cabinet body (1) close to the air inlet (311). When the air guide cover (35) is engaged with the end of the air inlet channel (31), the air guide cover (35) plays a sealing role and can keep the control cabinet body (1) warm. The end of the air inlet channel (31) is provided with an arc-shaped sliding groove (312).

8. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 7 is characterized in that: The air guide cover (35) comprises an air outlet cone (351), a sealing cone (352) and an air inlet ring (353); the two ends of the air inlet ring (353) are respectively connected to the air outlet cone (351) and the sealing cone (352); the air outlet cone (351) is arranged at a position of the air guide cover (35) close to the end of the air inlet channel (31); and the ends of the air outlet cone (351) and the sealing cone (352) that are away from each other are both sleeved with the first special-shaped shaft (33) or the second special-shaped shaft (34).

9. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 8 is characterized in that: The upper and lower ends of the air inlet ring (353) are both provided with sliding balls (3531), the sliding balls (3531) are movably connected to the arc-shaped sliding groove (312), and the air inlet ring (353) is provided with annularly distributed air inlet holes (3532).

10. The self-controllable constant temperature control cabinet based on oil pump startup according to claim 9, characterized in that: A partition (12) is provided at the bottom of the control cabinet body (1), and staggered ventilation holes (13) are provided on the partition (12) and the bottom plate of the control cabinet body (1).

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