A stratified hot and cold oil tank system with carbon recovery and multi-stage filtration functions

By using a settling tank with a hot and cold stratified oil tank system and multi-stage filtration components, the problem of oil tank contamination is solved, enabling clean filtration and regeneration of oil, reducing lubricant waste and equipment wear.

CN224270490UActive Publication Date: 2026-05-26GUANGDONG INST OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG INST OF SCI & TECH
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The oil tank of existing oil coolers becomes contaminated with lubricating oil after prolonged use because carbonized and metallic impurities cannot be effectively cleaned, requiring frequent replacement and resulting in waste.

Method used

A hot and cold stratified oil tank system was designed, which includes a hot oil chamber and a cold oil chamber. A settling tank and a transition chamber are set up for preliminary filtration. Combined with multi-stage filtration components and a carbon recovery device, the system realizes the deposition, filtration and regeneration of oil.

Benefits of technology

It effectively cleans impurities inside the oil tank, ensuring oil cleanliness, reducing wear on mechanical components, minimizing waste, improving system reliability, and saving equipment space and installation costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224270490U_ABST
Patent Text Reader

Abstract

This utility model discloses a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions, relating to the field of machine tool oil cooling technology. It includes an oil tank body; the oil tank body has a hot oil chamber and a cold oil chamber; the oil tank body is provided with a hot oil inlet, a hot oil outlet, a cold oil inlet, and a cold oil outlet; the hot oil inlet and hot oil outlet are opposite each other and both communicate with the hot oil chamber; the cold oil inlet and cold oil outlet are opposite each other and both communicate with the cold oil chamber; a settling tank is provided at the bottom of the hot oil chamber, and the settling tank can be removed from the hot oil chamber; a hot oil filter chamber is provided inside the hot oil chamber, located above the settling tank, and a hot oil filter assembly for filtering the flowing hot oil is provided inside the hot oil filter chamber; a transition chamber is provided at one end of the hot oil filter chamber near the hot oil inlet, the transition chamber communicating with the hot oil filter chamber and the settling tank. This system enables internal cleaning of the oil tank and reduces waste.
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Description

Technical Field

[0001] This utility model relates to the field of machine tool oil cooling technology, and in particular to a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions. Background Technology

[0002] Currently, the oil tanks used in oil coolers for oil cooling machine tools or other precision machining equipment become increasingly dirty due to the inability to clean carbonized impurities and metallic impurities inside during long-term oil storage. This renders the mechanical lubricating oil unusable, requiring the refilling of new oil periodically and resulting in significant waste. Utility Model Content

[0003] The purpose of this invention is to provide a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions to solve the problems existing in the prior art, thereby enabling internal cleaning of the oil tank and reducing waste.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions, including an oil tank body; the oil tank body has a hot oil chamber and a cold oil chamber; the oil tank body is provided with a hot oil inlet, a hot oil outlet, a cold oil inlet, and a cold oil outlet; the hot oil inlet and the hot oil outlet are arranged opposite to each other and are both connected to the hot oil chamber; the cold oil inlet and the cold oil outlet are arranged opposite to each other and are both connected to the cold oil chamber; a settling tank is provided at the bottom of the hot oil chamber, and the settling tank can be removed from the hot oil chamber; a hot oil filtration chamber is provided in the hot oil chamber, the hot oil filtration chamber is located above the settling tank, and a hot oil filtration assembly for filtering the flowing hot oil is provided in the hot oil filtration chamber; a transition chamber is provided at one end of the hot oil filtration chamber near the hot oil inlet, the transition chamber is connected to the hot oil filtration chamber, and the transition chamber is connected to the settling tank.

[0006] Preferably, the cold oil chamber is provided with a cold oil filter assembly for filtering the flowing cold oil.

[0007] Preferably, a heat insulation layer is provided between the hot oil chamber and the cold oil chamber.

[0008] Preferably, it further includes a recovery device, which has a accommodating cavity and a main inlet, a liquid outlet, and a gas outlet communicating with the accommodating cavity; the main inlet is used to receive hot oil, the liquid outlet is used to communicate with the hot oil inlet, the gas outlet is connected to a gas discharge pipe, and a carbon adsorption device is connected to the gas discharge pipe; the hot oil inlet pressure maintains a distance between the hot oil surface in the accommodating cavity and the top surface of the accommodating cavity.

[0009] Preferably, a valve is provided on the gas discharge pipe.

[0010] Preferably, the liquid outlet is connected to a hot oil inlet pipe, which extends into the transition cavity; a first balance hole is provided on the hot oil inlet pipe located in the transition cavity, the first balance hole being close to the hot oil inlet, and the inside of the hot oil inlet pipe located in the transition cavity being able to communicate with the inside of the transition cavity through the first balance hole.

[0011] Preferably, the hot oil filtration assembly includes a first filter plate, a second filter plate, and a third filter plate arranged sequentially at intervals, with the first filter plate close to the transition cavity, and the pore size of the first filter plate, the second filter plate, and the third filter plate gradually decreasing.

[0012] Preferably, the cold oil filtration assembly includes a primary filter plate and a secondary filter plate arranged at intervals in sequence, the primary filter plate being close to the cold oil inlet, and the pore size of the primary filter plate and the secondary filter plate gradually decreasing.

[0013] Preferably, the hot oil outlet is provided with a hot oil outlet pipe, one end of which extends into the hot oil filter chamber. A second balance hole is provided on the hot oil outlet pipe located in the hot oil filter chamber, and the hot oil outlet pipe communicates with the hot oil filter chamber through the second balance hole.

[0014] Preferably, the cold oil inlet is provided with a cold oil inlet pipe, one end of which extends into the cold oil chamber, and one end of the cold oil inlet pipe extends into the cold oil chamber. The cold oil inlet pipe has a downward-sloping cold oil spray port, and the cold oil sprayed from the cold oil spray port can fall onto the primary filter plate.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model provides a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions. By setting up a transition chamber and a settling tank, hot oil first enters the settling tank when entering the hot oil chamber and settles there, achieving preliminary filtration. The detachable design facilitates regular cleaning of impurities. The hot oil filtration assembly performs secondary filtration on the settled oil, ensuring that the cleanliness of the oil entering the system meets the standards, reducing wear on components such as pumps and valves, improving system reliability, eliminating the need to refill with new oil, and reducing waste. As a "buffer zone" between the hot oil inlet and the filtration chamber, it prevents the hot oil flow from directly impacting the filtration assembly, reducing the load on the filter element. The hot oil chamber integrates settling, filtration, and transition functions into a single cavity, reducing external pipelines and valves, lowering the risk of leakage, and saving equipment installation space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the cold and hot stratified oil tank system with carbon recovery and multi-stage filtration functions provided by this utility model.

[0019] In the picture:

[0020] 10-Fuel tank body; 11-Hot oil chamber; 111-First filter plate; 112-Second filter plate; 113-Third filter plate; 12-Cold oil chamber; 121-First-stage filter plate; 122-Second-stage filter plate; 13-Settling tank; 14-Transition chamber; 15-Hot oil inlet; 151-First balance hole; 16-Hot oil outlet; 161-Second balance hole; 17-Cold oil inlet; 18-Cold oil outlet; 181-Third balance hole;

[0021] 20-Recovery device; 21-Main inlet; 22-Liquid outlet; 23-Gas outlet; 24-Gas discharge pipe; 25-Valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide a hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions to solve the problems existing in the prior art, enabling internal cleaning of the oil tank and reducing waste.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] This embodiment provides a stratified hot and cold oil tank system with carbon recovery and multi-stage filtration functions, such as... Figure 1As shown, the system includes a fuel tank body 10; the fuel tank body 10 has a hot oil chamber 11 and a cold oil chamber 12; the fuel tank body 10 is provided with a hot oil inlet 15, a hot oil outlet 16, a cold oil inlet 17, and a cold oil outlet 18; the hot oil inlet 15 and the hot oil outlet 16 are arranged opposite to each other and are both connected to the hot oil chamber 11; the cold oil inlet 17 and the cold oil outlet 18 are arranged opposite to each other and are both connected to the cold oil chamber 12; a settling groove 13 is provided at the bottom of the hot oil chamber 11, and the settling groove 13 can... Remove from the hot oil chamber 11; the hot oil chamber 11 is equipped with a hot oil filter chamber, which is located above the settling tank 13, and the hot oil filter chamber is equipped with a hot oil filter assembly for filtering the flowing hot oil; a transition chamber 14 is provided at one end of the hot oil filter chamber near the hot oil inlet 15, the transition chamber 14 is connected to the hot oil filter chamber, and the transition chamber 14 is connected to the settling tank 13 (the settling tank 13 is used to store impurities, which is convenient for regular cleaning and ensures a clean oil tank environment).

[0027] By setting up a transition chamber 14 and a settling tank 13, hot oil entering the hot oil chamber 11 first enters the settling tank 13 and settles there, achieving preliminary filtration. The detachable design facilitates regular cleaning of impurities. The hot oil filter assembly performs secondary filtration on the settled oil, ensuring that the cleanliness of the oil entering the system meets the standards, reducing wear on components such as pumps and valves, improving system reliability, eliminating the need for re-injection of new oil, and reducing waste. As a "buffer zone" between the hot oil inlet 15 and the filter chamber, it prevents the hot oil flow from directly impacting the filter assembly, reducing the load on the filter element. The hot oil chamber 11 integrates settling, filtration, and transition functions into the same cavity, reducing external pipelines and valves 25, lowering the risk of leakage, and saving equipment installation space.

[0028] The following are the setup instructions regarding carbon recovery:

[0029] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, it also includes a recovery device 20, which has a accommodating cavity and a main inlet 21, a liquid outlet 22, and a gas outlet 23 connected to the accommodating cavity. The main inlet 21 is used to receive hot oil, the liquid outlet 22 is used to connect to the hot oil inlet 15, and the gas outlet 23 is connected to a gas discharge pipe 24, on which a carbon adsorption device is connected. The hot oil inlet pressure keeps a gap between the hot oil surface in the accommodating cavity and the top surface of the accommodating cavity (by controlling the hot oil inlet pressure to keep a certain gap between the hot oil surface in the accommodating cavity and the top surface of the accommodating cavity, the gas generated by the high-temperature hot oil is in the upper space, and the carbon is recovered and reused through the gas discharge pipe 24 and the subsequent carbon adsorption device; the hot oil in the hot oil inlet 15 comes from the machine tool, the hot oil in the hot oil outlet 16 enters the oil cooler, the cold oil from the outlet of the oil cooler enters the cold oil inlet 17, and the cold oil in the cold oil outlet 18 enters the machine tool).

[0030] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a valve 25 is installed on the gas discharge pipe 24.

[0031] The following are the relevant settings for the hot oil chamber 11:

[0032] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the hot oil filtration assembly includes a first filter plate 111, a second filter plate 112, and a third filter plate 113 arranged sequentially at intervals. The first filter plate 111 is close to the transition cavity 14, and the pore size of the first filter plate 111, the second filter plate 112, and the third filter plate 113 gradually decreases. By allowing impurities on the hot oil to settle and undergo three layers of filtration, the oil entering the oil cooler is ensured to be clean and hygienic.

[0033] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the liquid outlet 22 is connected to a hot oil inlet pipe, which extends into the transition cavity 14. A first balance hole 151 is provided on the hot oil inlet pipe located in the transition cavity 14. The first balance hole 151 is close to the hot oil inlet 15, and the inside of the hot oil inlet pipe located in the transition cavity 14 can communicate with the inside of the transition cavity 14 through the first balance hole 151.

[0034] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the hot oil outlet 16 is provided with a hot oil outlet pipe, one end of which extends into the hot oil filter chamber. A second balance hole 161 is provided on the hot oil outlet pipe located in the hot oil filter chamber, and the hot oil outlet pipe is connected to the hot oil filter chamber through the second balance hole 161.

[0035] The following are the relevant settings for the cold oil chamber 12:

[0036] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a cold oil filter assembly for filtering the flowing cold oil is provided in the cold oil chamber 12.

[0037] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the cold oil filter assembly includes a primary filter plate 121 and a secondary filter plate 122 arranged sequentially at intervals. The primary filter plate 121 is close to the cold oil inlet 17, and the pore size of the primary filter plate 121 and the secondary filter plate 122 gradually decreases.

[0038] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1As shown, the cold oil inlet 17 is provided with a cold oil inlet pipe, one end of which extends into the cold oil chamber 12, and the other end of the cold oil inlet pipe extends into the cold oil chamber 12. The cold oil inlet pipe has a downward-sloping cold oil spray port, and the cold oil sprayed from the cold oil spray port can fall onto the primary filter plate 121.

[0039] Specifically, the cold oil outlet 18 is provided with a cold oil outlet pipe, and a third balance hole 181 is provided on the part of the cold oil outlet pipe that extends into the cold oil chamber 12.

[0040] Specifically, the hot oil inlet pipe, hot oil outlet pipe, and cold oil outlet pipe are all oil pipes with bends. The function of each balance hole is to prevent oil from being blocked at the oil inlet and to prevent oil from flowing back when the oil pump stops.

[0041] Specifically, the optimal diameter for each balance hole is 1mm to 2mm; the diameter of the hot oil inlet pipe is 12mm to 16mm; the diameter of the hot oil outlet pipe is 12mm to 16mm; and the diameter of the cold oil inlet pipe is 20mm to 22mm.

[0042] Regarding other related settings:

[0043] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a heat insulation layer is provided between the hot oil chamber 11 and the cold oil chamber 12. The two parts, the cold oil chamber 12 and the hot oil chamber 11, are established. The heat insulation layer fully separates the cold oil and the hot oil, reducing the impact of heat exchange on the cold oil outlet temperature, ensuring that the cold oil outlet temperature is controllable, and thus providing the machine tool with lubricating oil at a precise temperature.

[0044] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A stratified hot and cold oil tank system with carbon recovery and multi-stage filtration functions, characterized in that: Including the fuel tank itself; The oil tank body has a hot oil chamber and a cold oil chamber; the oil tank body is provided with a hot oil inlet, a hot oil outlet, a cold oil inlet, and a cold oil outlet; the hot oil inlet and the hot oil outlet are arranged opposite to each other and are both connected to the hot oil chamber; the cold oil inlet and the cold oil outlet are arranged opposite to each other and are both connected to the cold oil chamber. A settling tank is provided at the bottom of the hot oil chamber, and the settling tank can be removed from the hot oil chamber; a hot oil filter chamber is provided inside the hot oil chamber, the hot oil filter chamber is located above the settling tank, and a hot oil filter assembly for filtering the flowing hot oil is provided inside the hot oil filter chamber; a transition chamber is provided at one end of the hot oil filter chamber near the hot oil inlet, the transition chamber is connected to the hot oil filter chamber, and the transition chamber is connected to the settling tank.

2. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 1, characterized in that: The cold oil chamber is equipped with a cold oil filter assembly for filtering the flowing cold oil.

3. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 1, characterized in that: A heat insulation layer is provided between the hot oil chamber and the cold oil chamber.

4. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 1, characterized in that: It also includes a recovery device, which has a accommodating cavity and a main inlet, a liquid outlet and a gas outlet communicating with the accommodating cavity; the main inlet is used to receive hot oil, the liquid outlet is used to communicate with the hot oil inlet, and the gas outlet is connected to a gas discharge pipe, on which a carbon adsorption device is connected; The hot oil inlet pressure maintains a distance between the hot oil level in the accommodating cavity and the top surface of the accommodating cavity.

5. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 4, characterized in that: A valve is installed on the gas discharge pipe.

6. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 4, characterized in that: The liquid outlet is connected to a hot oil inlet pipe, which extends into the transition cavity; A first balance hole is provided on the hot oil inlet pipe located in the transition cavity. The first balance hole is close to the hot oil inlet. The inside of the hot oil inlet pipe located in the transition cavity can communicate with the inside of the transition cavity through the first balance hole.

7. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 1, characterized in that: The hot oil filtration assembly includes a first filter plate, a second filter plate, and a third filter plate arranged sequentially at intervals. The first filter plate is close to the transition cavity, and the pore size of the first filter plate, the second filter plate, and the third filter plate gradually decreases.

8. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 2, characterized in that: The cold oil filtration assembly includes a primary filter plate and a secondary filter plate arranged at intervals. The primary filter plate is close to the cold oil inlet, and the pore size of the primary filter plate and the secondary filter plate gradually decreases.

9. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 1, characterized in that: The hot oil outlet is provided with a hot oil outlet pipe, one end of which extends into the hot oil filter chamber. A second balance hole is provided on the hot oil outlet pipe located in the hot oil filter chamber, and the hot oil outlet pipe is connected to the hot oil filter chamber through the second balance hole.

10. The hot and cold stratified oil tank system with carbon recovery and multi-stage filtration functions according to claim 8, characterized in that: The cold oil inlet is provided with a cold oil inlet pipe, one end of which extends into the cold oil chamber, and one end of the cold oil inlet pipe extends into the cold oil chamber. The cold oil inlet pipe has a downward-sloping cold oil spray port, and the cold oil sprayed from the cold oil spray port can fall onto the primary filter plate.