Drainage pipe transformation structure capable of effectively reducing emulsification risk of lubricating oil
By installing a solenoid valve in the drain pipe and connecting it to the same power supply as the air compressor loading solenoid valve, automated control is achieved, solving the problem of lubricating oil emulsification, extending the air compressor's operating time, reducing the risk of corrosion, and ensuring the normal operation of the unit.
Patent Information
- Application Number
- CN202520617448.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Lubricating oil is prone to emulsification in screw air compressors, which leads to decreased lubrication, increased motor load, rotor corrosion, and damage to system components, posing safety hazards.
A solenoid valve is installed in the drain pipe and connected to the same power source as the loading solenoid valve in the air compressor to achieve automated control, extend the air compressor's operating time, increase the system temperature, and reduce the risk of lubricating oil emulsification.
It extends the air compressor's operating time, reduces the risk of lubricating oil emulsification, alleviates corrosion of the rotor and oil-gas separator, ensures the normal operation of the unit, and reduces manual operation.
Smart Images

Figure CN223854451U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to air compressor technical field, concretely relates to a kind of pollution discharge pipe reconstruction structure of effectively reducing lubricating oil emulsification risk. BACKGROUND
[0002] The core component of screw air compressor is a pair of intermeshing helical rotors (male rotor and female rotor), and its compression working principle is based on the rotational movement of the rotor to realize the continuous suction, compression and discharge of gas. The surface profile of the male rotor and the female rotor is helical, and they rotate in mutual engagement but do not contact each other under the drive of the electric motor and the belt mechanism. In this way, the air entering the rotor is continuously compressed in the direction of the airflow due to the continuously reduced spiral space, causing the air pressure to rise, thereby achieving the required maximum pressure. During this compression process, lubricating oil is continuously injected into the rotor to cool, seal and lubricate.
[0003] In the field of hydropower, the low-pressure gas system is one of the main auxiliary systems, which affects the success rate of unit start-up and shutdown. The operation of the low-pressure air compressor in the low-pressure gas system directly affects the energy storage of the system. Hydropower stations are usually located in humid and rainy areas, with high air humidity, which causes the air inlet to carry water and mix with lubricating oil and be compressed. The water in the air and the lubricating oil are fully mixed, providing conditions for the emulsification of the lubricating oil. Moreover, due to the short single operation time of the air compressor and the low temperature of the compressor head, the water in the outlet air is easily separated and mixed with the lubricating oil, causing the emulsification of the lubricating oil.
[0004] After the emulsification of the lubricating oil, the lubricating effect of the lubricating oil decreases rapidly, the motor load increases, the rotor inside the compressor accelerates corrosion, and the oil-gas separator and other components of the air compressor are affected. The outlet pipeline and filter are blocked, and the low-pressure gas system users are also affected by corrosion, which poses a significant safety hazard to the normal operation of the unit. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a pollution discharge pipe reconstruction structure for effectively reducing the risk of lubricating oil emulsification to solve the above-mentioned problems existing in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0007] A pollution discharge pipe reconstruction structure for effectively reducing the risk of lubricating oil emulsification, comprising a pollution discharge pipe, wherein the inlet end a of the pollution discharge pipe is in communication with the bottom of the gas storage tank, and the outlet end b of the pollution discharge pipe is a free end. A filter and a solenoid valve are sequentially arranged on the pollution discharge pipe from the inlet end a to the outlet end b, and the solenoid valve is connected to the same power source as the loading solenoid valve in the air compressor.
[0008] Optionally, a valve is further arranged between the inlet end a of the pollution discharge pipe and the filter.
[0009] Optionally, the valve is a ball valve.
[0010] Optionally, the electromagnetic valve and the outlet end b of the blowdown pipe are further provided with a regulating valve.
[0011] Optionally, the regulating valve is a regulating ball valve.
[0012] Beneficial effects: the blowdown pipe reconstruction structure for effectively reducing the emulsification risk of lubricating oil has the following advantages:
[0013] (1) The electromagnetic valve is arranged on the blowdown pipe, the electromagnetic valve and the loading electromagnetic valve inside the air compressor are connected to the same power supply, when the system is in a loading state, the loading electromagnetic valve and the electromagnetic valve are powered at the same time, the valve is opened, the gas in the gas storage tank is shunted, and the operation time of the air compressor is effectively prolonged; the operation time of the air compressor is increased, the temperature inside the system is increased, the risk of emulsification of lubricating oil is effectively reduced, the corrosion speed of the rotor, the oil-gas separator and other components in the air compressor is relieved, and normal operation of the unit is ensured.
[0014] (2) The impurities at the bottom of the gas storage tank are automatically discharged, manual blowdown is not needed, and personnel consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure schematic view of the blowdown pipe reconstruction structure for effectively reducing the emulsification risk of lubricating oil.
[0016] In the figure: 1, blowdown pipe; 2, gas storage tank; 3, filter; 4, electromagnetic valve; 5, ball valve; 6, regulating ball valve. DETAILED DESCRIPTION
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the present application will be briefly introduced in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.
[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0019] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.
[0020] Example 1
[0021] like Figure 1 As shown, this embodiment provides a drain pipe modification structure that effectively reduces the risk of lubricating oil emulsification. It includes a drain pipe 1, the inlet end a of the drain pipe 1 is connected to the bottom of the air storage tank 2, and the outlet end b of the drain pipe 1 is a free end. A filter 3 and a solenoid valve 4 are sequentially arranged on the drain pipe 1 from the inlet end a to the outlet end b. The solenoid valve 4 is connected to the same power supply as the loading solenoid valve in the air compressor.
[0022] The filter 3 is used to filter out impurities in the drain pipe 1 and prevent the solenoid valve 4 from becoming clogged. The solenoid valve 4 is normally closed. When the power is turned on, both the load solenoid valve and the solenoid valve 4 are energized at the same time, and the valve opens to divert the gas in the air tank 2, thus extending the running time of the air compressor. The extended running time of the air compressor increases the internal temperature of the system, effectively reducing the risk of lubricating oil emulsification and slowing down the corrosion of components such as the rotor and oil-gas separator inside the air compressor, ensuring the normal operation of the unit.
[0023] In practical applications, the air compressor starts frequently, and a mixture of water and impurities remains at the bottom of the air tank 2. Currently, a switch is installed on the drain pipe 1, and the opening and closing of the switch is manually controlled to discharge the mixture of water and impurities from the bottom of the air tank 2; this results in a waste of manpower.
[0024] However, in this invention, the solenoid valve 4 enables automated control. When the system is in a loaded state, the solenoid valve 4 automatically opens to discharge the mixture, and when the system is in an unloaded state, the solenoid valve 4 automatically closes, eliminating the need for manual control.
[0025] Example 2
[0026] likeFigure 1 As shown, this embodiment provides a drain pipe modification structure that effectively reduces the risk of lubricating oil emulsification. It includes a drain pipe 1, the inlet end a of the drain pipe 1 is connected to the bottom of the air storage tank 2, and the outlet end b of the drain pipe 1 is a free end. A filter 3 and a solenoid valve 4 are sequentially arranged on the drain pipe 1 from the inlet end a to the outlet end b. The solenoid valve 4 is connected to the same power supply as the loading solenoid valve in the air compressor.
[0027] Furthermore, a valve is also provided between the inlet end a of the sewage pipe 1 and the filter 3.
[0028] Specifically, the valve is a ball valve 5.
[0029] Among them, ball valve 5 acts as a switch. When filter 3 or solenoid valve 4 is damaged, ball valve 5 can be temporarily closed. After filter 3 or solenoid valve 4 is repaired or replaced, ball valve 5 can be opened again. Ball valve 5 is usually in the normally open state.
[0030] In practical applications, ball valve 5 is normally open. The mixture of water and impurities is first filtered by filter 3, and the filtered water is then discharged through solenoid valve 4.
[0031] Example 3
[0032] like Figure 1 As shown, this embodiment provides a drain pipe modification structure that effectively reduces the risk of lubricating oil emulsification. It includes a drain pipe 1, the inlet end a of the drain pipe 1 is connected to the bottom of the air storage tank 2, and the outlet end b of the drain pipe 1 is a free end. A filter 3 and a solenoid valve 4 are sequentially arranged on the drain pipe 1 from the inlet end a to the outlet end b. The solenoid valve 4 is connected to the same power supply as the loading solenoid valve in the air compressor.
[0033] Furthermore, a valve is also provided between the inlet end a of the sewage pipe 1 and the filter 3.
[0034] Specifically, the valve is a ball valve 5.
[0035] Furthermore, a regulating valve is also provided between the solenoid valve 4 and the outlet end b of the drain pipe 1.
[0036] Specifically, the regulating valve is a regulating ball valve 6.
[0037] The function of the regulating ball valve 6 is to regulate the flow rate by precisely controlling the flow rate of the medium by changing the opening degree of the ball.
[0038] In practical applications, ball valve 5 is normally open. The mixture of water and impurities is first filtered by filter 3, and the filtered water is then discharged through solenoid valve 4. During the sewage discharge process, rotating and adjusting ball valve 6 controls the opening of the ball, which can control the flow rate in sewage pipe 1.
[0039] It should be pointed out finally: the above only for the preferred embodiments of the utility model have, and do not for limiting the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.
Claims
1. A blowdown pipe modification structure effective to reduce the risk of emulsification of lubricating oil, characterized by, The sewage pipe (1) is provided with a filter (3) and a solenoid valve (4) from the inlet end a to the outlet end b.
2. A blowdown pipe modification structure according to claim 1, characterized in that, A valve is further arranged between the inlet end a of the sewage pipe (1) and the filter (3).
3. A blowdown pipe modification structure according to claim 2, characterized in that, The valve is a ball valve (5).
4. The blowdown pipe modification structure according to claim 1, characterized by, An adjusting valve is further arranged between the solenoid valve (4) and the outlet end b of the sewage pipe (1).
5. A blowdown pipe modification structure according to claim 4, characterized in that, The adjusting valve is an adjusting ball valve (6).