An automatic alarm device for oil level detection of high-pressure micro-mist plunger pump

Abstract

The present invention discloses an automatic alarm device for detecting the oil level of a high-pressure micro-mist plunger pump, comprising: an engine oil pressure-dividing and pressure-reducing device and an oil level detection system. The engine oil pressure-dividing and pressure-reducing device comprises an oil barrel, and the oil barrel is provided with a pressure-dividing and pressure-reducing device connection port, a first-stage pressure-dividing cover, a first-stage pressure-reducing partition, a second-stage pressure-dividing cover, a second-stage pressure-reducing partition, and a pressure-dividing and pressure-reducing device from top to bottom. A three-way valve connection port is provided below the oil barrel; the oil level detection system comprises an oil level sensor, a controller, and a display. The oil level sensor is provided at the three-way valve connection port, the oil level sensor is connected to the input end of the controller, and the display is connected to the output end of the controller. The automatic alarm device for detecting the oil level of a high-pressure micro-mist plunger pump provided by the present invention can stabilize the oil level and reduce fluctuations. When the oil level is lower than the set value, the control display automatically outputs an alarm screen, realizing automatic detection and alarm of the oil level, and can improve the service life, operational stability, and oil filling efficiency of the high-pressure micro-mist plunger pump.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure micro-mist humidification for industrial air conditioners, and in particular to an automatic alarm device for detecting the oil level of a high-pressure micro-mist plunger pump. Background Art

[0002] In the cigarette production process, high-pressure micro-mist humidification systems are used in the humidification process of industrial air conditioners. Due to the continuous production, high-pressure micro-mist generally does not stop the machine. However, the high-pressure micro-mist plunger pump has a small oil tank capacity, no oil level indicator, and requires the machine to be shut down for refueling. Maintenance personnel cannot promptly monitor the oil usage. Long-term operation causes excessive oil consumption in the plunger pump and untimely replenishment, shortening the service life of the high-pressure micro-mist unit. Therefore, how to intuitively display the plunger pump oil level, implement low oil level alarms, and enable non-stop oil refueling have become technical challenges that need to be solved in this field.

[0003] Therefore, there is an urgent need for an automatic alarm device for detecting the oil level of a high-pressure micro-mist plunger pump. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic alarm device for oil level detection of a high-pressure fine mist plunger pump to solve the above-mentioned problems in the prior art and to improve the service life and oil filling efficiency of the high-pressure fine mist plunger pump.

[0005] The present invention provides an automatic alarm device for oil level detection of a high-pressure micro-mist plunger pump, comprising: an oil pressure-reducing device and an oil level detection system, wherein:

[0006] The oil pressure-dividing and pressure-reducing device includes an oil barrel, and the oil barrel is provided with a pressure-dividing and pressure-reducing device connection port, a first-stage pressure-dividing cover, a first-stage pressure-reducing partition, a second-stage pressure-dividing cover, a second-stage pressure-reducing partition, and a pressure-dividing and pressure-reducing device from top to bottom. A three-way valve connection port is provided below the oil barrel to introduce the oil in the high-pressure fine mist plunger pump into the oil barrel;

[0007] The oil level detection system includes an oil level sensor, a controller and a display. The oil level sensor is arranged at the three-way valve connection port at the bottom of the oil barrel. The oil level sensor is connected to the input end of the controller for detecting the oil level in real time and obtaining an oil level detection signal; the display is connected to the output end of the controller. The controller is used to judge the oil level of the high-pressure micro-mist plunger pump according to the oil level detection signal of the oil level sensor, and send an alarm signal to the display when the oil level is lower than a preset threshold; the display is used to display an alarm information screen in response to the alarm signal.

[0008] As described above, the high-pressure micro-mist plunger pump oil level detection automatic alarm device, wherein preferably, the pressure divider and pressure reducer is semi-conical, and the pressure divider and pressure reducer are combined with the first-stage pressure divider cover, the first-stage pressure reduction partition, the second-stage pressure divider cover, and the second-stage pressure reduction partition to form a pressure divider and pressure reduction structure with a cylindrical upper part and a semi-conical lower part.

[0009] As described above, the high-pressure micro-mist plunger pump oil level detection automatic alarm device, wherein, preferably, a plurality of first pressure reducing holes are opened on the wall of the pressure divider and the pressure reducer, and a plurality of arc-shaped guide plates are provided on the outside of the wall, and each of the arc-shaped guide plates is radially distributed from the top to the bottom of the pressure divider and the pressure reducer; the outside of the wall of the pressure divider and the arc-shaped guide plates are tightly fitted with the arc-shaped guide plates, and each of the arc-shaped guide plates is perpendicular to the wall of the pressure divider and the pressure reducer, and the arc-shaped guide plates are continuously horizontally provided with inverted V-shaped deflection grooves, and the inverted V-shaped deflection grooves are basically perpendicular to the arc-shaped guide plates.

[0010] As described above, the high-pressure fine mist plunger pump oil level detection automatic alarm device, wherein preferably, the arc-shaped guide plate, the inverted V-shaped deflection groove, the first pressure reducing hole, the pressure divider and pressure reducer, the first-stage pressure divider cover, the first-stage pressure reducing partition, the second-stage pressure divider cover and the second-stage pressure reducing partition are made of 304 stainless steel.

[0011] As described above, the high-pressure fine mist plunger pump oil level detection automatic alarm device, wherein, preferably, a plurality of second pressure reducing holes are provided on the first-stage pressure reducing partition and the second-stage pressure reducing partition; a plurality of third pressure reducing holes are provided on the first-stage pressure dividing cover and the second-stage pressure dividing cover.

[0012] The high-pressure fine mist plunger pump oil level detection automatic alarm device as described above, wherein, preferably, a barrel cover is provided on the top of the oil barrel, the barrel cover is connected to the oil barrel through a barrel body-barrel cover connecting port, a pressure divider and reducer connecting port is provided between the barrel body-barrel cover connecting port and the first-stage pressure divider cover, and the oil barrel and the barrel cover are made of transparent thickened explosion-proof material.

[0013] As described above, the high-pressure fine mist plunger pump oil level detection automatic alarm device, wherein, preferably, the oil barrel and the barrel cover can be used as an auxiliary oil tank of the high-pressure fine mist plunger pump, for storing remaining oil and automatically replenishing oil when the plunger pump is short of oil.

[0014] As described above, the automatic alarm device for oil level detection of the high-pressure fine mist plunger pump, wherein, preferably, a ventilation pipe is provided above the barrel cover to connect the air pressure inside the oil barrel with the atmospheric pressure, thereby maintaining the same pressure as the oil tank pressure of the high-pressure fine mist plunger pump.

[0015] As described above, the high-pressure fine mist plunger pump oil level detection automatic alarm device, wherein, preferably, a dust-proof exhaust radiator is connected to one side of the ventilation pipe; the dust-proof exhaust radiator is flat-head mesh-shaped and is made of high-temperature resistant and corrosion-resistant material.

[0016] As described above, the automatic alarm device for oil level detection of the high-pressure micro-mist plunger pump, wherein, preferably, an oil filling port is provided above the barrel cover, an oil filling switch is provided on the top of the barrel cover, and the oil filling switch is connected to the oil filling port; and the oil filling switch adopts a self-rebounding manual press-type switch, and the oil in the oil filling port can flow into the interior of the oil barrel only when the switch is pressed, and the oil cannot flow into the interior of the oil barrel when the switch bounces up.

[0017] The high-pressure micro-mist plunger pump oil level detection automatic alarm device of the present invention is designed according to the principle of communicating vessels, and a set of oil barrels are designed to realize non-stop oil filling. A pressure dividing and reducing structure is installed inside the oil barrel, which can stabilize the oil level and reduce fluctuations. The oil level signal is collected by an oil level sensor and processed by a controller. When the oil level is lower than the set value, the control display automatically outputs an alarm screen to realize automatic detection and alarm of the oil level. The engine oil in the barrel is connected to the engine oil of the high-pressure micro-mist plunger pump through the three-way valve connection at the bottom of the oil barrel. The problem that the existing high-pressure micro-mist plunger pump has a small oil tank capacity, no oil level indication and the unit needs to be shut down for refueling, thereby reducing the service life of the unit, can be solved, and the service life, operation stability and oil filling efficiency of the high-pressure micro-mist plunger pump can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic structural diagram of an embodiment of an automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump provided by the present invention;

[0020] Figure 2 A top view of the arc-shaped guide plate of the automatic alarm device for detecting the oil level of a high-pressure fine mist plunger pump provided by the present invention;

[0021] Figure 3 A top view of the pressure-reducing partition of the automatic alarm device for oil level detection of a high-pressure fine mist plunger pump provided by the present invention.

[0022] Explanation of the accompanying symbols: 1-oil filling port, 2-oil filling switch, 3-barrel cover, 4-barrel body-barrel cover connection port, 5-pressure divider and pressure reducer connection port, 6-oil barrel, 7-first-stage pressure divider cover, 8-first-stage pressure reducing partition, 9-second-stage pressure divider cover, 10-second-stage pressure reducing partition, 11-inverted V-shaped deflection groove, 12-arc-shaped guide plate, 13-first pressure reducing hole, 14-pressure divider and pressure reducer, 15-three-way valve connection port, 16-dust-proof exhaust radiator, 17-ventilation line, 18-oil level sensor, 19-controller, 20-display, 21-second pressure reducing hole. DETAILED DESCRIPTION

[0023] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure, its application, or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0024] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intervening component between the specific component and the first component or the second component. When a specific component is described as being connected to another component, the specific component may be directly connected to the other component without an intervening component, or may not be directly connected to the other component but have an intervening component.

[0026] All terms (including technical or scientific terms) used in this disclosure have the same meaning as those understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] like Figure 1 As shown, the high-pressure fine mist plunger pump oil level detection automatic alarm device provided in this embodiment includes: an oil pressure reduction device and an oil level detection system, wherein,

[0029] The oil pressure-dividing and pressure-reducing device includes an oil barrel 6, and the oil barrel 6 is provided with a pressure-dividing and pressure-reducing device connection port 5, a first-stage pressure-dividing cover 7, a first-stage pressure-reducing partition 8, a second-stage pressure-dividing cover 9, a second-stage pressure-reducing partition 10, and a pressure-dividing and pressure-reducing device 14 from top to bottom. A three-way valve connection port 15 is provided below the oil barrel 6 to introduce the oil in the high-pressure fine mist plunger pump into the oil barrel 6;

[0030] The oil level detection system includes an oil level sensor 18, a controller 19 and a display 20. The oil level sensor 18 is arranged at the three-way valve connection port 15 at the bottom of the oil barrel 6. The oil level sensor 18 is connected to the input end of the controller 19 for detecting the oil level in real time and obtaining an oil level detection signal; the display 20 is connected to the output end of the controller 19, and the controller 19 is used to judge the oil level of the high-pressure micro-mist plunger pump according to the oil level detection signal of the oil level sensor 18, and send an alarm signal to the display when the oil level is lower than a preset threshold; the display 20 is used to display an alarm information screen in response to the alarm signal.

[0031] Among them, the pressure divider and pressure reducer 14 is semi-conical, and the pressure divider and pressure reducer 14 is combined with the first-stage pressure divider cover 7, the first-stage pressure reducing partition 8, the second-stage pressure divider cover 9, and the second-stage pressure reducing partition 10 to form a pressure divider and pressure reducing structure with a cylindrical upper part and a semi-conical lower part. The pressure divider and pressure reducing structure has the function of dividing and reducing the pressure of the engine oil, which can stabilize the oil level, reduce fluctuations, avoid oil pressure fluctuations caused by changes in the operating power of the plunger pump, ensure that the oil level remains basically stable, and protect the plunger pump oil circuit system.

[0032] Furthermore, a plurality of first pressure reducing holes 13 are provided on the wall of the pressure divider and pressure reducer 14, and a plurality of arc-shaped guide plates 12 are provided on the outer side of the wall, such as Figure 2 As shown, each of the arc-shaped guide plates 12 is radially distributed from the top to the bottom of the pressure divider and step-down device 14; the outer side of the wall of the pressure divider and step-down device 14 is tightly fitted with the arc-shaped guide plates 12, and each of the arc-shaped guide plates 12 is perpendicular to the wall of the pressure divider and step-down device 14, and an inverted V-shaped deflection groove 11 is continuously arranged horizontally on the arc-shaped guide plate 12, and the inverted V-shaped deflection groove 11 is basically perpendicular to the arc-shaped guide plate 12.

[0033] Furthermore, the arc-shaped guide plate 12, the inverted V-shaped deflection groove 11, the first pressure reducing hole 13, the pressure divider and reducer 14, the first-stage pressure dividing cover 7, the first-stage pressure reducing partition 8, the second-stage pressure dividing cover 9 and the second-stage pressure reducing partition 10 are made of 304 stainless steel.

[0034] Further, if Figure 3 As shown, the first-stage pressure-reducing partition 8 and the second-stage pressure-reducing partition 10 are provided with multiple second pressure-reducing holes 21; the first-stage pressure-reducing cover 7 and the second-stage pressure-reducing cover 9 are provided with multiple third pressure-reducing holes. The first pressure-reducing holes 13, the second pressure-reducing holes 21, and the third pressure-reducing holes form a mesh-like structure and serve as the main pressure-reducing channels. The diameters of the first pressure-reducing holes 13, the second pressure-reducing holes 21, and the third pressure-reducing holes decrease in sequence, and are smaller than the small pressure-reducing holes of the first-stage pressure-reducing partition 8 and the second-stage pressure-reducing partition 10.

[0035] Furthermore, the oil barrel 6 is installed outside the oil tank of the high-pressure fine mist plunger pump to assist in oil filling. A barrel cover 3 is provided on the top of the oil barrel 6. The barrel cover 3 is connected to the oil barrel 6 through a barrel body-barrel cover connection port 4. A pressure divider and reducer connection port 5 is provided between the barrel body-barrel cover connection port 4 and the first-stage pressure divider cover 7. In a specific implementation, the barrel cover 3 is connected to the oil barrel 6 through the threads in the barrel body-barrel cover connection port 4. The pressure divider and pressure reducing structure is installed inside the oil barrel 6 and is connected to the barrel cover 3 through the threads of the pressure divider and pressure reducer connection port 5 to facilitate disassembly, maintenance and cleaning. The oil barrel 6 and the barrel cover 3 are made of transparent thickened explosion-proof material. In some embodiments of the present invention, the oil barrel 6 and the barrel cover 3 are made of PAM board with a thickness of 4mm-6mm (for example, 5mm). It should be noted that the present invention does not specifically limit the material and thickness of the oil barrel 6 and the barrel cover 3.

[0036] Furthermore, controller 19 processes the oil level signal collected by oil level sensor 18. When the oil level falls below a set value, control display 20 automatically outputs an alarm screen. Controller 19 is a programmable logic controller (PLC). In one embodiment of the present invention, the PLC model is SP7-300. It should be noted that the present invention does not specifically limit the type and model of controller 19.

[0037] Furthermore, the oil barrel 6 and the barrel cover 3 can be used as an auxiliary oil tank of the high-pressure fine mist plunger pump to store remaining engine oil and automatically replenish oil when the plunger pump is short of oil, thereby realizing the non-stop oil replenishment of the high-pressure fine mist plunger pump and avoiding the problem of needing to stop the machine for oil replenishment when oil is short of oil.

[0038] Furthermore, a ventilation pipe 17 is provided above the barrel cover 3 to connect the air pressure inside the oil barrel 6 to the atmospheric pressure, thereby maintaining the same pressure as the oil tank pressure of the high-pressure fine mist plunger pump.

[0039] Furthermore, a dust-proof exhaust radiator 16 is connected to one side of the ventilation pipe 17. In a specific implementation, the ventilation pipe 17 is connected to the dust-proof exhaust radiator 16 by threads; the dust-proof exhaust radiator 16 is flat-headed mesh-shaped and is made of high-temperature resistant and corrosion-resistant materials. In one embodiment of the present invention, the dust-proof exhaust radiator 16 is made of 304 stainless steel, has three layers of protective nets and has the functions of heat dissipation and ventilation.

[0040] Furthermore, an oil filling port 1 is provided above the barrel cover 3, and an oil filling switch 2 is provided on the top of the barrel cover 3, and the oil filling switch 2 is connected to the oil filling port 1; and the oil filling switch 2 adopts a self-rebounding manual press switch, and the oil in the oil filling port 1 can only flow into the interior of the oil barrel 6 when the switch is pressed, and the oil cannot flow into the interior of the oil barrel 6 when the switch bounces up.

[0041] During operation, the controller 19 determines the oil level based on the oil level signal detected by the oil level sensor 18, and controls the display 20 to issue a screen alarm when the oil level is low. The staff can add oil without stopping the machine according to the alarm information, thereby realizing automatic detection and alarm of the oil level; through the pressure-dividing and pressure-reducing structure composed of the first-stage pressure-dividing cover 7, the first-stage pressure-reducing partition 8, the second-stage pressure-dividing cover 9, the second-stage pressure-reducing partition 10 and the pressure-dividing and pressure-reducing device 14, when the oil pressure of the plunger pump fluctuates, it has the functions of evenly dispersing the force on the oil, reducing the instantaneous pressure above the oil surface, and reducing the fluctuation of the oil level, which can stabilize the oil surface, reduce fluctuations, and avoid oil damage caused by changes in the operating power of the plunger pump. The pressure fluctuation ensures that the oil level remains basically stable, protects the plunger pump oil circuit system, and can improve the working life and operating stability of the high-pressure micro-mist plunger pump; through the three-way valve connection port 15 arranged at the bottom of the oil barrel 6, the engine oil in the oil barrel 6 can be connected with the engine oil in the high-pressure micro-mist plunger pump, and the engine oil in the high-pressure micro-mist plunger pump is introduced into the oil barrel 6. The instantaneous impact of the oil pressure fluctuation can be effectively dispersed through the pressure-dividing and pressure-reducing structure in the oil barrel 6, thereby playing the role of stabilizing and reducing pressure; it solves the problems of the existing high-pressure micro-mist plunger pump with small oil tank capacity, no oil level indication and the need to stop for refueling, thereby reducing the service life of the unit, and can improve the service life and operating stability of the high-pressure micro-mist plunger pump.

[0042] The embodiment of the present invention provides an automatic alarm device for oil level detection of a high-pressure micro-mist plunger pump. A set of oil barrels capable of non-stop oil filling is designed based on the principle of communicating vessels. A pressure dividing and reducing structure is installed inside the oil barrel to stabilize the oil level and reduce fluctuations. The oil level signal is collected by an oil level sensor and processed by a controller. When the oil level is lower than the set value, the control display automatically outputs an alarm screen to realize automatic detection and alarm of the oil level. The engine oil in the barrel is connected to the engine oil of the high-pressure micro-mist plunger pump through the three-way valve connection at the bottom of the oil barrel. The problem that the existing high-pressure micro-mist plunger pump has a small oil tank capacity, no oil level indication and the unit needs to be shut down for refueling, thereby reducing the service life of the unit, can be solved, and the service life, operational stability and oil filling efficiency of the high-pressure micro-mist plunger pump can be improved.

[0043] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0044] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A high-pressure mist plunger pump oil level detection automatic alarm device, characterized in that: include: Oil pressure reduction device and oil level detection system, including: The oil pressure-dividing and pressure-reducing device includes an oil barrel, and the oil barrel is provided with a pressure-dividing and pressure-reducing device connection port, a first-stage pressure-dividing cover, a first-stage pressure-reducing partition, a second-stage pressure-dividing cover, a second-stage pressure-reducing partition, and a pressure-dividing and pressure-reducing device from top to bottom. A three-way valve connection port is provided below the oil barrel to introduce the oil in the high-pressure fine mist plunger pump into the oil barrel; The oil level detection system includes an oil level sensor, a controller, and a display. The oil level sensor is arranged at the connection port of the three-way valve at the bottom of the oil barrel. The oil level sensor is connected to the input end of the controller and is used to detect the engine oil level in real time and obtain an engine oil level detection signal. The display is connected to the output end of the controller. The controller is used to determine the oil level of the high-pressure micro-mist plunger pump based on the engine oil level detection signal of the oil level sensor and send an alarm signal to the display when the oil level is lower than a preset threshold. The display is used to display an alarm information screen in response to the alarm signal. The pressure divider and pressure reducer is semi-conical, and the pressure divider and pressure reducer, the first-stage pressure divider cover, the first-stage pressure reduction partition, the second-stage pressure divider cover, and the second-stage pressure reduction partition are combined to form a pressure divider and pressure reduction structure with a cylindrical upper portion and a semi-conical lower portion; A plurality of first pressure reducing holes are provided on the wall of the pressure divider and the pressure reducer, and a plurality of arc-shaped guide plates are provided on the outside of the wall, and each of the arc-shaped guide plates is radially distributed from the top to the bottom of the pressure divider and the pressure reducer; the outside of the wall of the pressure divider and the pressure reducer is tightly fitted with the arc-shaped guide plates, and each of the arc-shaped guide plates is perpendicular to the wall of the pressure divider and the pressure reducer, and the arc-shaped guide plates are continuously and horizontally provided with inverted V-shaped deflection grooves, and the inverted V-shaped deflection grooves are basically perpendicular to the arc-shaped guide plates.

2. The high-pressure fine mist plunger pump oil level detection automatic alarm device according to claim 1 is characterized in that: The arc-shaped guide plate, the inverted V-shaped deflection groove, the first pressure reducing hole, the pressure divider and reducer, the first-stage pressure divider cover, the first-stage pressure reducing partition, the second-stage pressure divider cover and the second-stage pressure reducing partition are made of 304 stainless steel.

3. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 1 is characterized in that: A plurality of second pressure reducing holes are provided on the first-stage pressure reducing partition and the second-stage pressure reducing partition; a plurality of third pressure reducing holes are provided on the first-stage pressure dividing cover and the second-stage pressure dividing cover.

4. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 1 is characterized in that: A barrel cover is provided on the top of the oil barrel, and the barrel cover is connected to the oil barrel through a barrel body-barrel cover connecting port. A pressure divider and reducer connecting port is provided between the barrel body-barrel cover connecting port and the first-stage pressure divider cover. The oil barrel and the barrel cover are made of transparent and thickened explosion-proof material.

5. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 4 is characterized in that: The oil barrel and the barrel cover can be used as an auxiliary oil tank of the high-pressure fine mist plunger pump to store residual oil and automatically replenish oil when the plunger pump is short of oil.

6. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 4 is characterized in that: A ventilation pipeline is provided above the barrel cover to connect the air pressure inside the oil barrel to the atmospheric pressure, thereby keeping the pressure the same as the oil tank pressure of the high-pressure fine mist plunger pump.

7. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 6 is characterized in that: One side of the ventilation pipeline is connected to a dust-proof exhaust radiator; the dust-proof exhaust radiator is in a flat-head mesh shape and is made of high-temperature resistant and corrosion-resistant materials.

8. The automatic alarm device for detecting oil level of a high-pressure fine mist plunger pump according to claim 4 is characterized in that: An oil filling port is provided above the barrel cover, and an oil filling switch is provided on the top of the barrel cover, and the oil filling switch is connected to the oil filling port; and the oil filling switch adopts a self-rebounding manual press switch, and the oil in the oil filling port can only flow into the interior of the oil barrel when the switch is pressed. When the switch bounces up, the oil cannot flow into the interior of the oil barrel.

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