Hydraulic oil tank

Abstract

The utility model provides a hydraulic oil tank, which relates to the technical field of hydraulic oil tanks of hydraulic drive diaphragm compressors, and is characterized in that a partition plate is vertically arranged in an oil tank main body and divides the inner space of the oil tank main body into an oil return area (hot oil area) and an oil suction area (cold oil area); the appropriate height of the partition plate solves the problem that the oil drainage amount of a system of the compressor is different under different working conditions, and the oil amount of oil areas on the two sides is likely to be unbalanced, meanwhile, cold oil and hot oil are mixed from the top of the oil tank, the oil suction filter at the bottom is prevented from sucking hot oil mixed in an oil return area, the oil temperature of the system can be reduced, and the performance of the compressor is improved. The multiple oil return branch pipes are located in the oil return area, the oil return holes in the multiple oil return branch pipes are distributed from top to bottom, the hole diameters of the multiple oil return holes in each oil return branch pipe are set from small to large from top to bottom, the oil return holes limit the oil flow speed in a multi-strand, multi-layer and multi-direction oil return mode, the impact of oil on the interior of the oil tank is reduced, and the oil return efficiency is improved. Therefore, noise and bubbles are reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology for hydraulically driven diaphragm compressors, and in particular to a hydraulic oil tank. Background Technology

[0002] A diaphragm compressor divides the system into a hydraulic section and a gas section using a diaphragm. Hydraulic oil periodically drives the diaphragm in a reciprocating motion to compress the gas, thus achieving high-pressure gas compression. Currently, diaphragm compressors are widely used in the food industry, petroleum industry, chemical industry, aerospace, medicine, scientific research, and other fields.

[0003] Hydraulic oil tanks are an essential part of hydraulic systems. Generally, hydraulic oil tanks mainly consist of components such as filler connectors, air filters, thermometers, level gauges, filters, tank bodies, and drain valves. The tank body is designed with oil suction pipes and oil return pipes to ensure that the hydraulic oil tank can replenish or recover oil for the hydraulic system. In addition, hydraulic oil tanks also need to perform functions such as heat dissipation, preventing the formation of air bubbles in the oil, and settling impurities.

[0004] The hydraulic oil tanks currently used in liquid-driven diaphragm compressor systems have the following problems:

[0005] 1. Due to excessively fast oil flow rate, the filter in the return oil area is damaged, and the oil impacts the side wall and bottom plate of the tank, generating a large number of air bubbles, which reduces the performance and life of the hydraulic oil.

[0006] Second, because the original hydraulic oil tank uses a partition to exchange oil between the tank bottom plate and the oil tank, hot oil in the return oil area is easily rushed into the suction oil area, resulting in low oil cooling efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a hydraulic oil tank to alleviate the technical problems existing in the prior art, such as excessively fast oil flow rate in the hydraulic oil tank, which reduces the performance and life of the hydraulic oil, and hot oil in the return oil area easily rushes into the suction oil area, resulting in low oil cooling efficiency.

[0008] The hydraulic oil tank provided by this utility model includes: a tank body, a tank top cover, a partition, and a return oil pipe;

[0009] The top cover of the fuel tank is installed on the main body of the fuel tank;

[0010] The partition is vertically arranged inside the oil tank body. The partition is used to divide the internal space of the oil tank body into an oil return area and an oil suction area. There is a gap between the partition and the top cover of the oil tank so that the oil return area and the oil suction area can be connected. The oil return area is used to contain hot oil and the oil suction area is used to contain cold oil.

[0011] The return oil pipe includes a main return oil pipe and multiple return oil branch pipes. The multiple return oil branch pipes are all connected to the main return oil pipe and are all located in the return oil area. Each return oil branch pipe is provided with multiple return oil holes arranged from top to bottom, and the diameter of the multiple return oil holes gradually increases from top to bottom.

[0012] In an optional implementation,

[0013] The hydraulic oil tank also includes a hot oil suction filter;

[0014] The hot oil suction filter is installed in the oil return zone;

[0015] The oil suction area is equipped with a cold oil inlet pipe, which is connected to an external cooling circulation system.

[0016] The hot oil suction filter is used to direct the hot oil in the return oil zone into the external cooling circulation system, and the cooled oil in the cooling circulation system enters the suction zone through the cold oil inlet pipe.

[0017] In an optional implementation,

[0018] The hydraulic oil tank also includes a first magnetic attraction component;

[0019] The first magnetic suction component is disposed in the oil return zone and is located on the bottom plate of the oil tank body. The first magnetic suction component is used to attract iron filings in the oil return zone.

[0020] In an optional implementation,

[0021] The hydraulic oil tank also includes a cold oil suction filter;

[0022] The cold oil suction filter is installed in the oil suction zone.

[0023] In an optional implementation,

[0024] The hydraulic oil tank also includes a second magnetic attraction component;

[0025] The second magnetic suction component is disposed in the oil suction area and is located on the bottom plate of the oil tank body. The second magnetic suction component is used to attract iron filings in the oil suction area.

[0026] In an optional implementation,

[0027] The hydraulic oil tank also includes a level switch;

[0028] The liquid level switch is installed on the top cover of the oil tank and extends into the oil suction area.

[0029] In an optional implementation,

[0030] The hydraulic oil tank also includes a sleeve;

[0031] The sleeve is connected to the top cover of the oil tank and is fitted onto the liquid level switch. The sleeve is used to stabilize the liquid level near the liquid level switch and prevent the return oil from impacting the liquid level in the oil tank, causing liquid level fluctuations, which could lead to false alarms from the liquid level switch.

[0032] In an optional implementation,

[0033] The hydraulic oil tank also includes a level gauge;

[0034] The level gauge is installed inside the oil tank body and is located in the oil suction area.

[0035] In an optional implementation,

[0036] A temperature sensor is installed on the top cover of the oil tank, and the temperature sensor extends into the oil suction area;

[0037] A breather valve is installed on the top cover of the fuel tank, and the breather valve is connected to the internal space of the main body of the fuel tank.

[0038] In an optional implementation,

[0039] The hydraulic oil tank also includes an electric heater;

[0040] The electric heater is located in the oil return zone.

[0041] The hydraulic oil tank provided by this utility model features a vertically installed baffle within the tank body. This baffle divides the internal space of the tank body into a return oil zone (hot oil zone) and a suction oil zone (cold oil zone). The appropriate baffle height solves the problem of uneven oil volume in the two oil zones due to variations in system oil leakage under different operating conditions. Simultaneously, hot and cold oils mix from the top of the tank, preventing the suction filter at the bottom from drawing in hot oil mixed into the return oil zone. This helps lower the system's oil temperature and improve compressor performance. Multiple return oil branch pipes are located in the return oil zone, with return oil holes arranged from top to bottom. The diameter of the return oil holes on each branch pipe increases from top to bottom. The return oil holes limit the oil flow rate through a multi-strand, multi-layer, and multi-directional return method, reducing the impact of oil on the tank and thus reducing noise and air bubbles. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the overall structure of the hydraulic oil tank provided in an embodiment of the present utility model;

[0044] Figure 2 A schematic diagram of the overall structure of the hydraulic oil tank from another perspective, provided for an embodiment of this utility model;

[0045] Figure 3 This is a schematic diagram of the structure of the return oil pipe in the hydraulic oil tank provided in an embodiment of the present utility model;

[0046] Figure 4 This is a schematic diagram of the structure of the top cover of the hydraulic oil tank provided in an embodiment of the present utility model.

[0047] Icons: 100-Main body of oil tank; 110-Baffle plate; 111-Return oil zone; 112-Suction oil zone; 120-Cold oil inlet pipe; 200-Top cover of oil tank; 210-Level switch; 220-Shell; 230-Temperature sensor; 240-Breaker valve; 300-Return oil pipe; 310-Main return oil pipe; 320-Branch return oil pipe; 400-Hot oil suction filter; 500-Cold oil suction filter; 610-First magnetic suction component; 620-Second magnetic suction component; 700-Level gauge; 800-Electric heater. Detailed Implementation

[0048] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0052] like Figure 1 , Figure 2 As shown, the hydraulic oil tank provided in this embodiment includes: an oil tank body 100, an oil tank top cover 200, a partition 110, and an oil return pipe 300; the oil tank body 100 includes an oil tank bottom plate and an oil tank side plate fixed on the oil tank bottom plate, and the oil tank top cover 200 covers the oil tank body 100, thereby forming an overall tank structure.

[0053] The partition 110 is vertically arranged inside the tank body 100. The partition 110 is welded to the inner side wall and the bottom plate of the tank body 100. The partition 110 is used to divide the internal space of the tank body 100 into a return oil area 111 and an oil suction area 112. There is a gap between the partition 110 and the tank top cover 200 so that the return oil area 111 and the oil suction area 112 can be connected. The return oil area 111 is used to contain hot oil, and the oil suction area 112 is used to contain cold oil.

[0054] In an optional embodiment, the hydraulic oil tank further includes a hot oil suction filter 400; the hot oil suction filter 400 is disposed in the return oil zone 111; the suction zone 112 is provided with a cold oil inlet pipe 120, which is connected to an external cooling circulation system; the hot oil suction filter 400 is used to draw the hot oil in the return oil zone 111 into the external cooling circulation system, the cooling circulation system cools the hot oil, and the cooled oil enters the suction zone 112 through the cold oil inlet pipe 120.

[0055] Specifically, when the compressor is working, hot oil returns to the oil tank through the return oil pipe 300. The hot oil entering the oil tank enters the cooling circulation system through the hot oil suction filter 400. After the cooling circulation system cools the hot oil, it returns to the suction zone 112 through the cold oil inlet pipe 120. Due to the principle that cold oil is at the bottom and hot oil is at the top, the lower layer of the suction zone 112 is filled with a large amount of cold oil. The overflowing cold oil merges with the hot oil in the return oil zone 111 through the upper layer of the baffle 110, thereby sealing the hot oil in the return oil zone 111. This achieves the upward transfer of cold oil and the downward circulation of hot oil, which greatly improves the oil cooling efficiency.

[0056] like Figure 3 As shown, the return oil pipe 300 includes a return oil main pipe 310 and multiple return oil branch pipes 320. The multiple return oil branch pipes 320 are all connected to the return oil main pipe 310. The multiple return oil branch pipes 320 are all located in the return oil zone 111. Each return oil branch pipe 320 is provided with multiple return oil holes arranged from top to bottom, and the diameter of the multiple return oil holes gradually increases from top to bottom.

[0057] Specifically, the return oil pipe 300 is welded to the inner wall of the main body of the oil tank 100. Hot oil enters through the return oil main pipe 310. The return oil main pipe 310 discharges the hot oil into the return oil zone 111 through multiple return oil branch pipes 320. The return oil branch pipes 320 have return oil holes from top to bottom, which are smaller and larger. The return oil holes limit the oil flow rate through a multi-strand, multi-layer, and multi-directional return oil method, reducing the impact of oil on the oil tank, thereby reducing noise and bubbles.

[0058] The hydraulic oil tank provided in this embodiment features a vertically installed partition 110 within the tank body 100. This partition 110 divides the internal space of the tank body 100 into a return oil zone 111 and a suction oil zone 112. Multiple return oil branch pipes 320 are located in the return oil zone 111. The return oil holes on the multiple return oil branch pipes 320 are arranged from top to bottom, and the diameter of the multiple return oil holes on each return oil branch pipe 320 increases from top to bottom. The return oil holes limit the oil flow rate through a multi-strand, multi-layer, and multi-directional return method, reducing the impact of the oil on the tank and thus reducing... Noise and bubbles; and, since there is a gap between the baffle 110 and the top cover 200 of the oil tank, the return oil zone 111 and the suction oil zone 112 are connected. The cold oil overflowing from the suction oil zone 112 merges with the hot oil in the return oil zone 111 through the upper layer of the baffle 110, thereby sealing the hot oil in the return oil zone 111, which greatly improves the oil cooling efficiency and alleviates the technical problems of excessive oil flow rate in the hydraulic oil tank in the prior art, which reduces the performance and life of the hydraulic oil, and the hot oil in the return oil zone 111 is easy to rush into the suction oil zone 112, resulting in low oil cooling efficiency.

[0059] Based on the above embodiments, in an optional embodiment, the hydraulic oil tank provided in this embodiment further includes a first magnetic attraction component 610; the first magnetic attraction component 610 is disposed in the return oil zone 111 and is located on the bottom plate of the oil tank body 100. The first magnetic attraction component 610 is used to attract iron filings in the return oil zone 111. Specifically, the first magnetic attraction component 610 is configured as a soft magnetic plate, which is attracted to the bottom plate of the oil tank. During the process of hot oil sprayed from the return oil pipe 300 entering the hot oil suction filter 400 through the lower layer of the oil tank, the first magnetic attraction component 610 attracts a large number of iron filings that are brought back, thereby preventing iron filings from entering the hot oil suction filter 400 and improving the filter life.

[0060] In an optional embodiment, the hydraulic oil tank further includes a cold oil suction filter 500; the cold oil suction filter 500 is disposed in the oil suction area 112, and the cold oil suction filter 500 draws out the cold oil in the oil suction area 112 for use by external equipment.

[0061] In an optional embodiment, the hydraulic oil tank further includes a second magnetic suction component 620; the second magnetic suction component 620 is disposed in the oil suction area 112 and is located on the bottom plate of the oil tank body 100. The second magnetic suction component 620 is used to attract iron filings in the oil suction area 112. Specifically, the second magnetic suction component 620 is configured as a soft magnetic plate that is attracted to the bottom plate of the oil tank. During the process of the cold oil sprayed from the cold oil inlet pipe 120 being attracted to the oil suction filter, the second magnetic suction component 620 will magnetically attract a small amount of residual iron filings again, thereby improving the filter life.

[0062] In an optional embodiment, the hydraulic tank also includes a level switch 210; the level switch 210 is mounted on the top cover 200 of the tank and extends into the oil suction area 112; the level switch 210 controls the return oil and the suction oil by detecting changes in the liquid level.

[0063] like Figure 4 As shown, in an optional embodiment, the hydraulic oil tank further includes a sleeve 220; the sleeve 220 is connected to the top cover 200 of the oil tank. Specifically, the sleeve 220 is welded to the top cover 200 of the oil tank, and the sleeve 220 is a sleeve structure. The liquid level sensor of the liquid level switch 210 is placed inside the liquid stabilizing structure. When the compressor equipment is working, the liquid level sensor inside the sleeve 220 is protected from the impact of the high-speed flow of the upper layer of oil, thereby protecting the liquid level sensor of the liquid level switch 210. At the same time, it improves the detection accuracy of the liquid level switch 210 and reduces the probability of false alarms of the liquid level switch 210.

[0064] In an optional embodiment, the hydraulic oil tank further includes a level gauge 700; the level gauge 700 is disposed inside the oil tank body 100 and is located in the oil suction area 112, and the level gauge 700 is used to detect the liquid level height inside the oil tank body 100.

[0065] In an optional embodiment, a temperature sensor 230 is installed on the top cover 200 of the fuel tank, and the temperature sensor 230 extends into the oil suction area 112. The temperature sensor 230 is used to detect the temperature inside the main body 100 of the fuel tank. A breather valve 240 is installed on the top cover 200 of the fuel tank, and the breather valve 240 is connected to the internal space of the main body 100 of the fuel tank. The breather valve 240 plays the role of balancing the internal pressure of the main body 100 of the fuel tank.

[0066] In an optional embodiment, the hydraulic oil tank further includes an electric heater 800; the electric heater 800 is disposed in the return oil zone 111, and the electric heater 800 serves to ensure that the oil temperature in the return oil zone 111 is within a suitable working range.

[0067] The hydraulic oil tank provided by this utility model optimizes the return oil pipe 300 and its structure, reducing noise during operation and preventing air bubbles from forming during return oil impact, thus improving oil life. The structure and arrangement of the baffle 110 inside the tank are also optimized, improving the cooling efficiency of the oil during operation. A soft magnetic plate is added to the bottom of the tank, significantly extending the life of the filter inside. The structure of the detection area of ​​the level switch 210 is optimized, protecting the level switch 210 while improving its detection accuracy and reducing the probability of false alarms.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydraulic oil tank, characterized in that, include: The tank body (100), the tank top cover (200), the partition (110), and the return oil pipe (300); The top cover (200) of the fuel tank is placed on the main body (100) of the fuel tank; The partition (110) is vertically arranged inside the oil tank body (100). The partition (110) is used to divide the internal space of the oil tank body (100) into an oil return zone (111) and an oil suction zone (112). There is a gap between the partition (110) and the oil tank top cover (200) so that the oil return zone (111) and the oil suction zone (112) are connected. The oil return zone (111) is used to contain hot oil, and the oil suction zone (112) is used to contain cold oil. The return oil pipe (300) includes a main return oil pipe (310) and multiple return oil branch pipes (320). The multiple return oil branch pipes (320) are all connected to the main return oil pipe (310). The multiple return oil branch pipes (320) are all located in the return oil area (111). Each return oil branch pipe (320) is provided with multiple return oil holes arranged from top to bottom, and the diameter of the multiple return oil holes gradually increases from top to bottom.

2. The hydraulic oil tank according to claim 1, characterized in that, The hydraulic oil tank also includes a hot oil suction filter (400); The hot oil suction filter (400) is disposed in the oil return zone (111); The oil suction area (112) is provided with a cold oil inlet pipe (120), which is connected to an external cooling circulation. The hot oil suction filter (400) is used to draw hot oil from the return oil zone (111) into the external cooling circulation system. The cooled oil in the cooling circulation system enters the suction zone (112) through the cold oil inlet pipe (120).

3. The hydraulic oil tank according to claim 2, characterized in that, The hydraulic oil tank also includes a first magnetic attraction component (610); The first magnetic suction component (610) is disposed in the oil return zone (111) and the first magnetic suction component (610) is located on the bottom plate of the oil tank body (100). The first magnetic suction component (610) is used to attract iron filings in the oil return zone (111).

4. The hydraulic oil tank according to claim 2, characterized in that, The hydraulic oil tank also includes a cold oil suction filter (500); The cold oil suction filter (500) is disposed in the oil suction zone (112).

5. The hydraulic oil tank according to claim 4, characterized in that, The hydraulic tank also includes a second magnetic attraction component (620); The second magnetic suction component (620) is disposed in the oil suction area (112) and the second magnetic suction component (620) is located on the bottom plate of the oil tank body (100). The second magnetic suction component (620) is used to attract iron filings in the oil suction area (112).

6. The hydraulic oil tank according to claim 1, characterized in that, The hydraulic tank also includes a level switch (210); The liquid level switch (210) is installed on the top cover (200) of the oil tank, and the liquid level switch (210) extends into the oil suction area (112).

7. The hydraulic oil tank according to claim 6, characterized in that, The hydraulic oil tank also includes a sleeve (220); The sleeve (220) is connected to the top cover (200) of the oil tank, and the sleeve (220) is fitted onto the liquid level switch (210). The sleeve (220) is used to stabilize the liquid level near the liquid level switch and prevent the return oil from impacting the liquid level in the oil tank, causing liquid level fluctuations, which could lead to false alarms from the liquid level switch.

8. The hydraulic oil tank according to claim 1, characterized in that, The hydraulic tank also includes a level gauge (700); The level gauge (700) is disposed inside the oil tank body (100) and is located in the oil suction area (112).

9. The hydraulic oil tank according to claim 1, characterized in that, A temperature sensor (230) is installed on the top cover (200) of the oil tank, and the temperature sensor (230) extends into the oil suction area (112); A breather valve (240) is installed on the top cover (200) of the oil tank, and the breather valve (240) is connected to the internal space of the main body (100) of the oil tank.

10. The hydraulic oil tank according to claim 1, characterized in that, The hydraulic tank also includes an electric heater (800); The electric heater (800) is located in the oil return zone (111).

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