Cooler facilitating oil discharge and air compressor cooling system

Abstract

The utility model belongs to the technical field of air compressor accessories, and provides a cooler convenient for oil discharge and an air compressor cooling system, the cooler comprises a cooler body, the cooler body is connected with an oil inlet and an oil outlet, an oil duct for lubricating oil to circulate is arranged in the cooler body, the oil inlet and the oil outlet are communicated with the oil duct, and the oil inlet and the oil outlet are communicated with the oil duct. The cooler body is further provided with an oil drainage port, the oil drainage port is communicated with the oil duct, the oil drainage port is formed in the lowest position of the cooler body, and the oil drainage port is provided with a first switch; the cooling system comprises the cooler. By arranging the independent oil discharging port at the lowest position of the cooler body, lubricating oil retained in the cooler can be discharged and removed on the premise that an oil pipe does not need to be detached, operation is easy and convenient, mixed use of new oil and old oil is avoided, and the service life of the lubricating oil is prolonged advantageously; the first switch is arranged at the oil outlet, and in the normal working process of the cooler, the first switch is turned off, and the first switch is turned on when lubricating oil needs to be discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor accessory technical field, especially in kind of cooler and air compressor cooling system convenient to oil discharge. BACKGROUND

[0002] Screw air compressor must need to use lubricating oil in the operation process, and lubricating oil has irreplaceable position for the normal operation of screw air compressor, and lubricating oil mainly plays the roles of lubrication, temperature reduction, sealing and the like, After a certain period of operation, the lubricating oil will be invaded by impurities, moisture and the like, thereby causing the flowability and lubricating oil performance to be reduced, so as to guarantee the normal operation of the air compressor, the lubricating oil needs to be replaced after a certain period of operation of the air compressor.

[0003] The circulating path of the lubricating oil of most air compressor systems should be from an oil-gas separation barrel, through a cooler, an oil filter and the like, and then into a host, and then back to the oil-gas separation barrel for separation and recycling. Therefore, the oil discharge of the screw air compressor is usually performed through the oil discharge port at the bottom of the oil-gas separation barrel, and the lubricating oil is added through the oil filling port on the oil-gas separation barrel. The flow area of the cooler is large, and the structure and setting mode (vertical or horizontal) of the cooler are different, and the lubricating oil is inevitably retained in the cooler. During maintenance, the lubricating oil in the cooler is difficult to completely discharge, or the oil pipe connected to the cooler needs to be disassembled to completely discharge the oil in the cooler. If the residual lubricating oil is not completely discharged, the new and old oils will be mixed after the new lubricating oil is added, the new oil will soon become old oil, the lubrication effect is affected, and the service life of the lubricating oil is shortened.

[0004] The utility model wants to solve the technical problem that: how to solve the problem that the current cooler oil discharge operation is inconvenient and difficult to completely discharge. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art, the utility model aims at providing a cooler and air compressor cooling system convenient for oil discharge, which has the characteristics of simple structure and convenient oil discharge operation.

[0006] The utility model employs the technical scheme that: a cooler convenient for oil discharge, including cooler body, the cooler body is connected with oil inlet and oil outlet, the cooler body is internally provided with oil channel for lubricating oil circulation, and the oil inlet and the oil outlet are communicated with the oil channel, and the cooler body is further provided with oil drain port, the oil drain port is communicated with the oil channel, and the oil drain port is arranged at the lowest part of the cooler body, and the oil drain port is provided with first switch.

[0007] The oil-discharging convenient cooler of the present application can discharge and clean the lubricating oil retained in the cooler by setting a separate oil discharge port at the lowest part of the cooler body without disassembling the oil pipe, which is simple and convenient, avoids the mixing of new and old oil, prolongs the service life of the lubricating oil and protects the air compressor.

[0008] In some embodiments, the cooler body is further provided with an auxiliary port, and the auxiliary port is provided with a second switch.

[0009] By setting the auxiliary port, the air pressure inside and outside the cooler can be balanced when discharging the old lubricating oil, so as to accelerate the discharge and cleaning of the lubricating oil; the auxiliary port can also spray compressed air into the cooler when discharging the lubricating oil, so as to accelerate the discharge of the lubricating oil and discharge the deposited sundries in the cooler; when maintaining and cleaning the cooler, the auxiliary port can also be used to inject cleaning agent into the cooler to clean the inside of the cooler.

[0010] In some embodiments, the oil inlet is provided with a third switch, and the oil outlet is provided with a fourth switch.

[0011] By setting the third switch and the fourth switch, the oil discharge or cleaning operation of the cooler can be facilitated when discharging the old lubricating oil or cleaning the cooler.

[0012] In some embodiments, the cooler body includes a cooling core, an oil inlet head and an oil outlet head, the oil channel is arranged in the cooling core, the oil inlet head and the oil outlet head are connected with the cooling core, the oil inlet head and the oil outlet head are in communication with the oil channel, the oil inlet is arranged on the oil inlet head, and the oil outlet is arranged on the oil outlet head.

[0013] By setting the oil outlet head, the oil outlet can be conveniently arranged; similarly, by setting the oil inlet head, the oil inlet can be conveniently arranged.

[0014] In some embodiments, the number of cooling cores is one, the oil inlet head and the oil outlet head are arranged at two ends of the cooling core respectively, and the oil discharge port is arranged on the oil inlet head or the oil outlet head.

[0015] In some embodiments, the cooler body further comprises a connecting head, the number of cooling cores is two, the two cooling cores are arranged side by side, the connecting head is arranged at one end of the two cooling cores, and the connecting head communicates the oil channels of the two cooling cores, the oil inlet head is arranged at one end of one of the two cooling cores away from the connecting head, the oil outlet head is arranged at one end of the other cooling core away from the connecting head, and the oil discharge port is arranged on one of the oil inlet head, the oil outlet head and the connecting head.

[0016] By adopting the technical scheme, the cooler can be set as a single-pass type or a double-pass type according to requirements, the design is flexible, the cooler is suitable for different scenes, and the cooler is good in universality.

[0017] In some embodiments, the cooler body is provided with a plurality of heat dissipation fins, and a through air duct is arranged between adjacent two heat dissipation fins.

[0018] In some embodiments, the cooler body is further provided with a refrigerant channel for refrigerant circulation, and the refrigerant channel and the oil channel are arranged alternately and side by side.

[0019] By adopting the technical scheme, the cooler can be set as air cooling, water cooling or composite cooling according to requirements, and the cooler is suitable for different scenes.

[0020] In some embodiments, the auxiliary port and the oil discharge port are communicated through the oil channel.

[0021] By adopting the technical scheme, the auxiliary port and the oil discharge port can be prevented from being directly communicated, the lubricating oil can be discharged more completely, or the cooler can be cleaned conveniently.

[0022] A kind of air compressor cooling system, comprising the cooler of above and wind box, wind box is arranged at one side of cooler body, wind box and cooler body are detachably connected, and wind box is provided with fan at the side opposite to cooler. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure diagram of the cooler of a preferred embodiment of the utility model for facilitating oil discharge;

[0024] Figure 2 It is Figure 1 It is another view structure diagram of the cooler of the utility model for facilitating oil discharge;

[0025] Figure 3 It is the application of the cooler of the utility model for facilitating oil discharge in air compressor cooling system.

[0026] In the drawing: 100, the cooler for facilitating oil discharge;10, cooler body;11, cooling core;12, oil inlet head;13, oil outlet head;14, connecting head;15, fixed block;20, oil inlet;30, oil outlet;40, oil discharge port;50, auxiliary port.

[0027] 200 air compressor cooling system; 10a air bellow; 20a air fan. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. When an element is referred to as being "comprise a plurality of" it can be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are used for the purpose of illustration only and are not intended to be limiting.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "therefore" and "because" are used in their plain, ordinary sense, meaning "based on or because of".

[0031] Please refer to Figures 1 to 2 A cooler 100 convenient for oil discharge according to a preferred embodiment of the present application comprises a cooler body 10, an oil inlet 20 and an oil outlet 30 connected to the cooler body 10, an oil passage (not shown in the figure) for lubricating oil circulation arranged inside the cooler body 10, the oil inlet 20 and the oil outlet 30 in communication with the oil passage, and a drain port 40 arranged on the cooler body 10, the drain port 40 in communication with the oil passage and arranged at the lowest position of the cooler body 10, and the drain port 40 provided with a first switch (not shown in the figure).

[0032] The oil-discharge-easy cooler 100 of the present application can discharge the lubricating oil retained in the cooler without dismounting the oil pipe by setting the oil discharge port 40 at the lowest position of the cooler body 10, which is simple and convenient, avoids the mixing of new and old oil, prolongs the service life of the lubricating oil and protects the air compressor.

[0033] As shown in the drawings, in an embodiment, the cooler body 10 can be further provided with an auxiliary port 50, which is provided with a second switch (not shown in the drawings). Figure 1 By setting the auxiliary port 50, the auxiliary port 50 can balance the air pressure inside and outside the cooler when discharging the old lubricating oil, so as to accelerate the discharge and cleaning of the lubricating oil; the auxiliary port 50 can also inject compressed air into the cooler when discharging the lubricating oil, so as to accelerate the outflow of the lubricating oil and ensure the complete discharge of the lubricating oil, and also discharge the deposited sundries in the cooler. In addition, when maintaining and cleaning the cooler, the auxiliary port 50 can also be used to inject cleaning agent into the cooler, which is more convenient to operate.

[0034] Preferably, in some embodiments, the auxiliary port 50 and the oil discharge port 40 are communicated through an oil channel. Here, the auxiliary port 50 and the oil discharge port 40 are communicated through an oil channel, which means that the auxiliary port 50 and the oil discharge port 40 are not directly communicated, for example, the auxiliary port 50 and the oil discharge port 40 are respectively arranged at two ends of the cooler body 10, so that when cleaning the cooler body 10, the cleaning agent or compressed air enters the oil channel from the auxiliary port 50 and then is discharged from the oil discharge port 40, which can ensure the cleaning effect and also can make the discharge of the lubricating oil more complete, preventing the lubricating oil from being retained in the cooler during the discharge.

[0035] Further, the oil inlet port 20 is provided with a third switch (not shown in the drawings), and the oil outlet port 30 is provided with a fourth switch (not shown in the drawings). When discharging the old lubricating oil or cleaning the cooler, the third switch and the fourth switch are closed, so as to facilitate the oil discharge or cleaning operation of the cooler; during normal operation, the third switch and the fourth switch are opened, and the first switch and the second switch are kept closed. Specifically, when cleaning the cooler body 10, the third switch and the fourth switch are closed, and the first switch and the second switch are opened, which can prevent sundries or waste oil from flowing to other positions in the oil channel through the oil inlet port 20 or the oil outlet port 30; similarly, when discharging the old lubricating oil, the third switch and the fourth switch are closed, and the first switch and the second switch are opened, which can form a one-way conduction path to facilitate the discharge of the lubricating oil.

[0036] Optionally, the third switch and the fourth switch are preferably ball valves. The first switch and the second switch can be threaded plugs or ball valves.

[0037] As shown in Figure 1 and Figure 2 Specifically, the cooler body 10 includes a cooling core 11, an oil inlet head 12, and an oil outlet head 13. An oil channel is arranged in the cooling core 11. The oil inlet head 12 and the oil outlet head 13 are connected to the cooling core 11. The oil inlet head 12 and the oil outlet head 13 are both in communication with the oil channel. An oil inlet port 20 is arranged on the oil inlet head 12, and an oil outlet port 30 is arranged on the oil outlet head 13. The oil outlet head 13 can facilitate the arrangement of the oil outlet port 30. Similarly, the oil inlet head 12 can facilitate the arrangement of the oil inlet port 20. Because the oil outlet head 13 and the oil inlet head 12 both have cavities inside, they can simultaneously communicate with multiple oil channels and the oil inlet port 20 or the oil outlet port 30.

[0038] In this embodiment, the cooler body 10 further includes a connecting head 14. The number of cooling cores 11 is two. The two cooling cores 11 are arranged side by side. The connecting head 14 is arranged at one end of the two cooling cores 11 and communicates with the oil channels of the two cooling cores 11. The oil inlet head 12 is arranged at one end of one of the cooling cores 11 away from the connecting head 14. The oil outlet head 13 is arranged at one end of the other cooling core 11 away from the connecting head 14. The oil drain port 40 is arranged on one of the oil inlet head 12, the oil outlet head 13, and the connecting head 14. In other embodiments, the number of cooling cores 11 is one. The oil inlet head 12 and the oil outlet head 13 are arranged at the two ends of the cooling core 11, respectively. The oil drain port 40 is arranged on the oil inlet head 12 or the oil outlet head 13. The oil drain cooler 100 of the present application can be set to single-pass or double-pass according to requirements. The design is flexible and suitable for different scenarios, and has good versatility.

[0039] Optionally, the cooling core 11 and the oil inlet head 12, the oil outlet head 13, and the connecting head 14 are connected by welding. The oil outlet port 30 is integrally formed with the oil outlet head 13, and the oil inlet port 20 is integrally formed with the oil inlet head 12.

[0040] In one embodiment, the surface of the cooler body 10 is provided with a plurality of heat dissipation fins (not shown in the figure). Adjacent two heat dissipation fins are provided with a through air duct. In other embodiments, the cooler body 10 is further provided with a refrigerant channel (not shown in the figure) for the circulation of refrigerant. The refrigerant channel and the oil channel are arranged alternately and side by side. The cooler can be set to air cooling, water cooling, or composite cooling according to requirements. It is suitable for different scenarios and has a rich application scenario.

[0041] Preferably, to facilitate the installation and fixing of the cooler body 10, a number of fixing blocks 15 are also provided on the cooler body 10. In order to ensure uniform force distribution, the fixing blocks 15 are preferably located at the four corners of the cooler body 10.

[0042] like Figure 3 As shown in the figure, the application of the oil-draining cooler 100 provided by this utility model in the air compressor cooling system 200 is an example diagram. The air compressor cooling system 200 includes the aforementioned cooler and air box 10a. The air box 10a is disposed on one side of the cooler body 10, and the air box 10a is detachably connected to the fixing block 15 on the cooler body 10 by fasteners. A fan 20a is disposed on the side of the air box 10a facing the cooler.

[0043] Furthermore, to facilitate pipeline connection and oil drainage and cleaning operations, the oil inlet 20, oil outlet 30, oil drain 40, and auxiliary port 50 are all located outside the air box 10a.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooler for easy oil drainage, comprising a cooler body (10), wherein an oil inlet (20) and an oil outlet (30) are connected to the cooler body (10), and an oil passage for lubricating oil is provided inside the cooler body (10), wherein the oil inlet (20) and the oil outlet (30) are connected to the oil passage, characterized in that: The cooler body (10) is also provided with an oil drain port (40), which is connected to the oil passage and is located at the lowest point of the cooler body (10). The oil drain port (40) is provided with a first switch.

2. The cooler for easy oil drainage according to claim 1, characterized in that, The cooler body (10) is also provided with an auxiliary port (50), and the auxiliary port (50) is provided with a second switch.

3. The cooler for easy oil drainage according to claim 2, characterized in that, The oil inlet (20) is equipped with a third switch, and the oil outlet (30) is equipped with a fourth switch.

4. The cooler for easy oil drainage according to claim 1, characterized in that, The cooler body (10) includes a cooling core (11), an oil inlet head (12), and an oil outlet head (13). The oil passage is located inside the cooling core (11). The oil inlet head (12) and the oil outlet head (13) are connected to the cooling core (11). The oil inlet head (12) and the oil outlet head (13) are both connected to the oil passage. The oil inlet (20) is located on the oil inlet head (12), and the oil outlet (30) is located on the oil outlet head (13).

5. The cooler for easy oil drainage according to claim 4, characterized in that, The number of cooling cores (11) is one, the oil inlet head (12) and the oil outlet head (13) are respectively set at both ends of the cooling core (11), and the oil drain port (40) is set on the oil inlet head (12) or the oil outlet head (13).

6. The cooler for easy oil drainage according to claim 4, characterized in that, The cooler body (10) also includes a connecting head (14). There are two cooling cores (11), which are arranged side by side. The connecting head (14) is located at one end of the two cooling cores (11) and connects the oil passages of the two cooling cores (11). The oil inlet head (12) is located at one end of one of the cooling cores (11) away from the connecting head (14). The oil outlet head (13) is located at the other end of the cooling core (11) away from the connecting head (14). The oil drain port (40) is located at one of the oil inlet head (12), the oil outlet head (13), and the connecting head (14).

7. The cooler for easy oil drainage according to claim 1, characterized in that, The surface of the cooler body (10) is provided with a number of heat dissipation fins, and a through air duct is provided between two adjacent heat dissipation fins.

8. The cooler for easy oil drainage according to claim 1 or 7, characterized in that, The cooler body (10) is also provided with a refrigerant channel for refrigerant circulation, and the refrigerant channel and oil channel are arranged alternately in parallel.

9. The cooler for easy oil drainage according to claim 2, characterized in that, The auxiliary port (50) and the oil drain port (40) are connected through an oil passage.

10. An air compressor cooling system, characterized in that, Includes the cooler and air box (10a) as described in any one of claims 1-9, wherein the air box (10a) is disposed on one side of the cooler body (10), the air box (10a) is detachably connected to the cooler body (10), and a fan (20a) is disposed on the side of the air box (10a) directly opposite the cooler.

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