Lubricating oil circuit control system of air compressor

Abstract

The embodiment of the utility model provides a lubricating oil way control system of an air compressor. The lubricating oil way control system comprises a compressor main machine, an oil gas barrel, a first temperature control valve, a second temperature control valve, a first oil cooler and a second oil cooler. The two temperature control valves and the two oil coolers are arranged between the oil outlet of the oil gas barrel and the oil return opening of the compressor main machine in parallel, and lubricating oil separated from the oil gas barrel can selectively pass through the corresponding temperature control valves according to the actual operation environment and then flow through the corresponding oil coolers to be cooled. Two operation conditions of high temperature in summer and low temperature in winter can be considered at the same time, so that the temperature of the lubricating oil can be always kept in a reasonable interval range, thereby reducing the occurrence of machine faults and ensuring the normal operation of the machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field, concretely relates to a lubricating oil circuit control system of air compressor. BACKGROUND

[0002] At present, the common air compressor lubricating oil circuit control mode is mostly single temperature control mode adjusted by single temperature control valve and single oil cooler, the oil cooler under this control mode is generally designed according to the highest temperature, and the temperature control valve cannot be adjusted, so that the lubricating oil is easy to be cooled excessively when the machine is used in winter in severe cold area, leading to premature deterioration of lubricating oil, oil deterioration or even icing, resulting in insufficient lubrication of the machine head and seriously affecting the normal operation of the machine. SUMMARY

[0003] Therefore, the embodiment of the utility model provides a lubricating oil circuit control system of air compressor to solve the technical problem that the existing single temperature control mode is easy to cause excessive cooling of lubricating oil under winter low temperature working condition.

[0004] The lubricating oil circuit control system of air compressor provided by the embodiment of the utility model comprises a compressor host, an oil-gas barrel, a first temperature control valve, a second temperature control valve, a first oil cooler and a second oil cooler, the air outlet of the compressor host is communicated to the air inlet of the oil-gas barrel to separate oil and gas through the oil-gas barrel, the first temperature control valve and the second temperature control valve are each provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet,

[0005] The first oil inlet of the first temperature control valve is communicated to the oil outlet of the oil-gas barrel, the first oil outlet of the first temperature control valve is communicated to the oil inlet of the first oil cooler, the second oil inlet of the first temperature control valve is communicated to the oil outlet of the first oil cooler, and the second oil outlet of the first temperature control valve is communicated to the oil return port of the compressor host,

[0006] The first oil inlet of the second temperature control valve is communicated to the oil outlet of the oil-gas barrel, the first oil outlet of the second temperature control valve is respectively communicated to the oil inlets of the first oil cooler and the second oil cooler, the second oil inlet of the second temperature control valve is respectively communicated to the oil outlets of the first oil cooler and the second oil cooler, and the second oil outlet of the second temperature control valve is communicated to the oil return port of the compressor host,

[0007] The first control valve is arranged between the first oil inlet of the first temperature control valve and the oil outlet of the oil-gas barrel, and the second control valve is arranged between the first oil inlet of the second temperature control valve and the oil outlet of the oil-gas barrel.

[0008] Optionally, a third control valve is arranged between the first oil outlet of the second temperature control valve and the oil inlet of the first oil cooler; and a fourth control valve is arranged between the second oil inlet of the second temperature control valve and the oil outlet of the first oil cooler.

[0009] Optionally, the first control valve, the second control valve, the third control valve and the fourth control valve are all ball valves or all electric control valves.

[0010] Optionally, an oil filter is arranged at the front end of the oil return port of the compressor host, and the second oil outlets of the first temperature control valve and the second temperature control valve are both communicated to the oil filter.

[0011] The embodiment of the utility model has the following beneficial effects: two temperature control valves and two oil coolers are arranged in parallel between the oil outlet of the oil gas bucket and the oil return port of the compressor host, the lubricating oil separated from the oil gas bucket can be selected to pass through the corresponding temperature control valve (arranged for summer high temperature working condition and winter low temperature working condition respectively) according to the actual operation environment, and then flows through the corresponding oil cooler for cooling, which can simultaneously consider summer high temperature and winter low temperature two kinds of operation conditions, makes the temperature of lubricating oil can always keep in a reasonable interval range, thereby reduces the occurrence of machine failure, guarantees the normal operation of machine. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0013] Figure 1 It is the structural schematic diagram of the embodiment of the utility model;

[0014] The figure number indicates:

[0015] 1, compressor host;2, oil gas bucket;3, first temperature control valve;4, second temperature control valve;5, first oil cooler;6, second oil cooler;7, oil filter;8, first control valve;9, second control valve;10, third control valve;11, fourth control valve. DETAILED DESCRIPTION

[0016] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application. In addition, it should be understood that the terms "first", "second", etc. are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second", etc. can explicitly or implicitly include one or more features.

[0017] Please refer to Figure 1 The embodiment of the present application provides a lubricating oil path control system of an air compressor, which comprises a compressor host 1, an oil-gas bucket 2, a first temperature control valve 3, a second temperature control valve 4, a first oil cooler 5 and a second oil cooler 6. The air outlet of the compressor host 1 is communicated to the air inlet of the oil-gas bucket 2, so as to separate oil and gas through the oil-gas bucket 2.

[0018] The first temperature control valve 3 and the second temperature control valve 4 are both provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet. The first oil inlet of the first temperature control valve 3 is communicated to the oil outlet of the oil-gas bucket 2, and the first oil outlet of the first temperature control valve 3 is communicated to the oil inlet of the first oil cooler 5. The second oil inlet of the first temperature control valve 3 is communicated to the oil outlet of the first oil cooler 5, and the second oil outlet of the first temperature control valve 3 is communicated to the oil return port of the compressor host 1.

[0019] The first oil inlet of the second temperature control valve 4 is communicated to the oil outlet of the oil-gas bucket 2, and the first oil outlet of the second temperature control valve 4 is respectively communicated to the oil inlets of the first oil cooler 5 and the second oil cooler 6. The second oil inlets of the first oil cooler 5 and the second oil cooler 6 are respectively communicated to the oil outlet of the second temperature control valve 4, and the second oil outlet of the second temperature control valve 4 is communicated to the oil return port of the compressor host 1. Specifically, the oil filter 7 is arranged at the front end of the oil return port of the compressor host 1, and the second oil outlets of the first temperature control valve 3 and the second temperature control valve 4 are both communicated to the oil filter 7.

[0020] The first control valve 8 is arranged between the first oil inlet of the first temperature control valve 3 and the oil outlet of the oil-gas bucket 2. The second control valve 9 is arranged between the first oil inlet of the second temperature control valve 4 and the oil outlet of the oil-gas bucket 2, the third control valve 10 is arranged between the first oil outlet of the second temperature control valve 4 and the oil inlet of the first oil cooler 5, and the fourth control valve 11 is arranged between the second oil inlet of the second temperature control valve 4 and the oil outlet of the first oil cooler 5.

[0021] In winter low-temperature working condition: the first control valve 8 is opened, the second control valve 9, the third control valve 10 and the fourth control valve 11 are closed, the lubricating oil separated from the oil-gas bucket 2 enters the first temperature control valve 3 through the first control valve 8. When the temperature of the lubricating oil is lower than the set temperature of the first temperature control valve 3, the first inlet of the first temperature control valve 3 is communicated with the second outlet thereof, the low-temperature lubricating oil directly passes through the first temperature control valve 3 and the oil filter 7 to return to the compressor main machine 1 for lubrication, and then re-enters the oil-gas bucket 2 for circulation. When the temperature of the lubricating oil is greater than or equal to the set temperature of the first temperature control valve 3, the first inlet of the first temperature control valve 3 is communicated with the first outlet thereof, the second inlet is communicated with the second outlet, the lubricating oil passes through the first temperature control valve 3 to enter the first oil cooler 5 for heat exchange and cooling, and then passes through the first temperature control valve 3 and the oil filter 7 to return to the compressor main machine 1 for lubrication, and then re-enters the oil-gas bucket 2 for circulation. In this working condition, the lubricating oil only passes through one oil cooler for partial heat exchange.

[0022] In summer high-temperature working condition: the first control valve 8 is closed, the second control valve 9, the third control valve 10 and the fourth control valve 11 are opened, the lubricating oil separated from the oil-gas bucket 2 enters the second temperature control valve 4 through the second control valve 9. When the temperature of the lubricating oil is lower than the set temperature of the second temperature control valve 4, the first inlet of the second temperature control valve 4 is communicated with the second outlet thereof, the low-temperature lubricating oil directly passes through the second temperature control valve 4 and the oil filter 7 to return to the compressor main machine 1 for lubrication, and then re-enters the oil-gas bucket 2 for circulation. When the temperature of the lubricating oil is greater than or equal to the set temperature of the second temperature control valve 4, the first inlet of the second temperature control valve 4 is communicated with the first outlet thereof, the second inlet is communicated with the second outlet, the lubricating oil passes through the second temperature control valve 4 to enter the first oil cooler 5 and the second oil cooler 6 for heat exchange and cooling, and then passes through the second temperature control valve 4 and the oil filter 7 to return to the compressor main machine 1 for lubrication, and then re-enters the oil-gas bucket 2 for circulation. In this working condition, the two oil coolers are fully opened, the lubricating oil passes through the two oil coolers for heat exchange, and the cooling effect is best.

[0023] The first control valve 8, the second control valve 9, the third control valve 10 and the fourth control valve 11 are all ball valves or all electric control valves. When the first control valve 8, the second control valve 9, the third control valve 10 and the fourth control valve 11 are all ball valves, manual switching of different working conditions can be realized by manual control; when the first control valve 8, the second control valve 9, the third control valve 10 and the fourth control valve 11 are all electric control valves, automatic switching of different working conditions can be realized by an automatic control system.

[0024] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the technical scheme and core idea of the present application; it should be understood by those skilled in the art that the technical scheme recorded in the foregoing examples can be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. A lubricating oil passage control system of an air compressor, characterized by: The compressor main machine, an oil-gas barrel, a first temperature control valve, a second temperature control valve, a first oil cooler and a second oil cooler are included; an air outlet of the compressor main machine is communicated to an air inlet of the oil-gas barrel to separate oil and gas through the oil-gas barrel; the first temperature control valve and the second temperature control valve are both provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet; The first oil inlet of the first temperature control valve is communicated to an oil outlet of the oil-gas barrel, the first oil outlet of the first temperature control valve is communicated to an oil inlet of the first oil cooler, the second oil inlet of the first temperature control valve is communicated to an oil outlet of the first oil cooler, and the second oil outlet of the first temperature control valve is communicated to an oil return port of the compressor main machine; The first oil inlet of the second temperature control valve is communicated to the oil outlet of the oil-gas barrel, the first oil outlet of the second temperature control valve is respectively communicated to the oil inlets of the first oil cooler and the second oil cooler, the second oil inlet of the second temperature control valve is respectively communicated to the oil outlets of the first oil cooler and the second oil cooler, and the second oil outlet of the second temperature control valve is communicated to the oil return port of the compressor main machine; The first oil inlet of the first temperature control valve and the oil outlet of the oil-gas barrel are provided with a first control valve, and the first oil inlet of the second temperature control valve and the oil outlet of the oil-gas barrel are provided with a second control valve.

2. The lubricating oil passage control system of an air compressor according to claim 1, characterized by: The first oil outlet of the second temperature control valve and the oil inlet of the first oil cooler are provided with a third control valve, and the second oil inlet of the second temperature control valve and the oil outlet of the first oil cooler are provided with a fourth control valve.

3. A lubricating oil passage control system of an air compressor according to claim 2, characterized in that: The first control valve, the second control valve, the third control valve and the fourth control valve are all ball valves or all electric control valves.

4. The lubricating oil passage control system of an air compressor according to any one of claims 1 to 3, characterized in that: An oil filter is arranged at the front end of the oil return port of the compressor main machine, and the second oil outlets of the first temperature control valve and the second temperature control valve are both communicated to the oil filter.

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