Quantitative automatic oil supply system
By using a quantitative automatic oil supply system, which utilizes a gear pump and a volumetric flow meter, combined with PLC control and a double-layer pipeline design, the problem of time-consuming and labor-intensive manual handling of oil is solved, achieving precise quantitative oil supply, reducing labor intensity and improving frying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU TIANKUN TIMES MECHANICAL EQUIP MFG CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technologies, when stir-frying seasonings, manually handling the oil is time-consuming and labor-intensive, making it difficult to meet the processing requirements of factories.
It adopts a quantitative automatic oil supply system, including a gear pump, a volumetric flow meter and a control module. It achieves precise quantitative oil supply through PLC programming control, and is equipped with double-layer pipeline and overpressure protection return pipeline to reduce heat loss.
It reduced labor intensity, improved work efficiency, ensured stable grease temperature, reduced heat loss, and prevented pipe bursts caused by valve malfunctions.
Smart Images

Figure CN224226667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condiment processing technology, and in particular to a quantitative automatic oil supply system. Background Technology
[0002] When stir-frying seasonings (such as hot pot base), various spices and seasonings are mixed and their aroma is released through heating and stir-frying in oil. The amount of oil used is crucial to the flavor and quality of the final product.
[0003] Currently, a large amount of various oils are added before stir-frying seasonings. Workers usually need to go to the crude oil tank to release a specified amount of oil, and then transfer it to the wok. The oil is then poured into the wok manually, requiring hundreds of kilograms of oil each time. This results in excessive labor intensity for the workers and low efficiency, making it difficult to meet the processing requirements of the factory. Utility Model Content
[0004] The purpose of this invention is to solve the problem of time-consuming and labor-intensive manual handling of oil in the prior art, and to propose a quantitative automatic oil supply system.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quantitative automatic oil supply system includes a housing with a control module mounted on it. It also includes: a gear pump for conveying oil, disposed within the housing; an oil inlet pipe fixedly mounted at the input end of the gear pump, with one end of the oil inlet pipe extending out of the housing away from the gear pump; and a volumetric flow meter for measuring oil volume, disposed within the housing. Both the gear pump and the volumetric flow meter are electrically connected to the control module. The output end of the gear pump is connected to the input end of the volumetric flow meter via an oil delivery pipe, and an oil supply pipe fixedly mounted at the output end of the volumetric flow meter. An overpressure protection backflow line is provided between the oil delivery pipe and the oil inlet pipe.
[0007] In order to protect the system pipelines, gear pumps, and volumetric flow meters, the overpressure protection return pipeline preferably includes a bypass pipe, one end of which is connected to the oil supply pipe through a safety valve, and the other end of which is connected to the oil inlet pipe.
[0008] To improve oil transportation efficiency, preferably, the inlet pipe, supply pipe, bypass pipe, and delivery pipe are all double-layered pipes.
[0009] To improve the service life and safety of the gear pump, preferably, the gear pump is made of stainless steel.
[0010] Preferably, both the end of the oil supply pipe near the volumetric flow meter and the end of the oil delivery pipe near the gear pump are fixedly equipped with anti-leakage check valves.
[0011] Preferably, a mounting bracket is fixedly installed inside the housing, and both the gear pump and the volumetric flow meter are fixedly mounted on the mounting bracket by bolts.
[0012] Compared with the prior art, the present invention provides a quantitative automatic oil supply system, which has the following beneficial effects:
[0013] 1. This quantitative automatic oil supply system, by installing a gear pump and a volumetric flow meter inside the tank, connects the output end of the gear pump to the input end of the volumetric flow meter through an oil delivery pipe. Then, an oil supply pipe is fixedly installed at the output end of the volumetric flow meter, and an oil inlet pipe is fixedly installed at the input end of the gear pump. It adopts PLC self-programming control, which can accurately and directly supply oil from the crude oil tank to the wok. The oil weight can be set according to the different weights of oil in each wok, and it will automatically stop when the weight is reached. The pipeline outlet is equipped with a leak-proof check valve, and the oil outlet is controlled by a pneumatic valve. All valves have signal feedback protection to avoid pipe expansion caused by valve failure. This system greatly reduces labor and labor intensity.
[0014] 2. This quantitative automatic oil supply system uses double-layered pipes for the oil inlet pipe, oil supply pipe, bypass pipe, and oil delivery pipe. High-efficiency thermal insulation material is filled between the inner and outer pipes to form a heat insulation barrier, reducing the possibility of heat conduction to the outside. It can maintain its initial temperature during long-distance transportation, thereby reducing heat loss or preventing condensation and improving the performance.
[0015] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model, by installing a gear pump and a volumetric flow meter inside the housing, connects the output end of the gear pump to the input end of the volumetric flow meter through an oil supply pipe, and then fixes an oil supply pipe on the output end of the volumetric flow meter and an oil inlet pipe on the input end of the gear pump, can accurately and directly supply oil from the crude oil tank to the wok, thereby reducing labor intensity and improving work efficiency. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of a quantitative automatic oil supply system proposed in this utility model. Figure 1 ;
[0017] Figure 2 A schematic diagram of the structure of a quantitative automatic oil supply system proposed in this utility model. Figure 2 ;
[0018] Figure 3 A schematic diagram of the structure of a quantitative automatic oil supply system proposed in this utility model. Figure 3 ;
[0019] Figure 4A schematic diagram of the structure of a quantitative automatic oil supply system proposed in this utility model. Figure 4 .
[0020] In the diagram: 1. Housing; 101. Mounting bracket; 2. Gear pump; 3. Volumetric flow meter; 4. Inlet pipe; 5. Supply pipe; 6. Bypass pipe; 601. Safety valve; 7. Oil delivery pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0023] Example:
[0024] Reference Figures 1-4An automatic quantitative oil supply system includes a housing 1, on which a control module is mounted. It also includes a gear pump 2 for conveying oil, housed within the housing 1. The gear pump 2 is made of stainless steel; more specifically, both the gears and the pump body are made of stainless steel, hence it is also called a stainless steel gear pump 2, preferably model 50ZBFS26-31-3. An oil inlet pipe 4 is fixedly mounted at the input end of the gear pump 2, with one end extending out of the housing 1, allowing direct oil extraction from an oil storage tank or connection to an external pipeline. Extraction is performed; a volumetric flow meter 3, used for measuring oil volume, is installed inside the housing 1. The volumetric flow meter 3 includes types such as oval gear flow meters, rotary wheel flow meters, and scraper flow meters. Here, we prefer the LL-AL50 rotary wheel flow meter. A mounting bracket 101 is fixedly installed inside the housing 1, and both the gear pump 2 and the volumetric flow meter 3 are bolted to the mounting bracket 101. The bottom of the mounting bracket 101 is fixedly equipped with self-locking casters for easy movement. Both the gear pump 2 and the volumetric flow meter 3 are... The control module is electrically connected and is based on existing technology. It mainly includes a PLC module and a display screen, used to control the operating status of the gear pump 2 and the volumetric flow meter 3. The output end of the gear pump 2 is connected to the input end of the volumetric flow meter 3 via an oil supply pipe 7. An oil supply pipe 5 is fixedly installed at the output end of the volumetric flow meter 3, with one end of the oil supply pipe 5 extending out of the housing 1 away from the volumetric flow meter 3. Metered oil can be output from the oil supply pipe 5. At this time, the wok can be placed at the outlet of the oil supply pipe 5, or an external pipe can be connected to the oil supply pipe 5. The system facilitates the supply of oil to the wok. To ensure the safety of the oil delivery system, an overpressure protection backflow pipeline is installed between the oil delivery pipe 7 and the oil inlet pipe 4. During operation, the gear pump 2 is started to draw oil from the oil tank through the oil inlet pipe 4, and then delivers it to the volumetric flow meter 3 through the oil delivery pipe 7. After being measured by the volumetric flow meter 3, the oil is delivered to the wok from the oil supply pipe 5. When the flow rate reaches the set value, the volumetric flow meter 3 sends an electrical signal to the control module, which then controls the gear pump 2 to stop working, achieving automatic quantitative delivery and improving the efficiency of use.
[0025] In use, a gear pump 2 and a volumetric flow meter 3 are installed inside the housing 1. The output end of the gear pump 2 is connected to the input end of the volumetric flow meter 3 through an oil supply pipe 7. An oil supply pipe 5 is fixedly installed on the output end of the volumetric flow meter 3, and an oil inlet pipe 4 is fixedly installed on the input end of the gear pump 2. The system is controlled by PLC programming, which can accurately and directly supply oil from the crude oil tank to the wok. The oil weight can be set according to the weight of each batch of oil, and the system will automatically stop when the weight is reached. A check valve is installed at the pipeline outlet, and the oil outlet is controlled by a pneumatic valve. All valves have signal feedback protection to prevent pipe expansion caused by valve failure. This system greatly reduces labor and labor intensity.
[0026] Reference Figures 2-3 Here, we design the overpressure protection return pipeline as a bypass pipe 6. One end of the bypass pipe 6 is connected to the oil supply pipe 7 through the safety valve 601, and the other end of the bypass pipe 6 is connected to the oil inlet pipe 4. This is mainly used to prevent the outlet pressure of the gear pump 2 from being too high, thereby protecting the gear pump 2 and the volumetric flow meter 3 in the system from damage. When the pressure in the system exceeds the safety limit set by the safety valve 601, this pipeline allows some fluid to bypass the normal flow path and return directly to the inlet of the gear pump 2 or other designated locations to reduce the system pressure and improve safety.
[0027] Reference Figures 2-4 The inlet pipe 4, supply pipe 5, bypass pipe 6, and delivery pipe 7 are all double-layered pipes. The dimensions of the double-layered pipes are as follows: Inner pipe: material = 304 stainless steel, inner diameter = 57 mm, wall thickness = 4 mm; Outer pipe: material = 304 stainless steel, outer diameter = 76 mm, wall thickness = 2 mm; Insulation layer: material = polyurethane foam, thickness = 3.5 mm; Connection method: flange connection. During use, by filling the space between the inner and outer pipes with high-efficiency insulation material, a heat insulation barrier is formed, reducing the possibility of heat conduction outwards. This maintains the initial temperature during long-distance transportation, reducing heat loss or preventing condensation, thus improving performance.
[0028] Reference Figures 2-4 Leakage prevention check valves are fixedly installed at the end of the oil supply pipe 5 near the volumetric flow meter 3 and the end of the oil delivery pipe 7 near the gear pump 2. When the volumetric flow meter 3 and the gear pump 2 stop working, the liquid backflow phenomenon can be reduced, and the protection effect of the volumetric flow meter 3 and the gear pump 2 can be improved.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quantitative automatic oil supply system, comprising a housing (1), wherein a control module is disposed on the housing (1), characterized in that, Also includes: A gear pump (2) for conveying oil is installed inside the housing (1). The gear pump (2) is fixedly provided with an oil inlet pipe (4) at its input end, and the end of the oil inlet pipe (4) away from the gear pump (2) extends out of the housing (1); A volumetric flow meter (3) for measuring oil volume is installed inside the housing (1). Both the gear pump (2) and the volumetric flow meter (3) are electrically connected to the control module. The output end of the gear pump (2) is connected to the input end of the volumetric flow meter (3) through the oil supply pipe (7). The output end of the volumetric flow meter (3) is fixedly provided with an oil supply pipe (5). An overpressure protection return pipeline is provided between the oil supply pipe (7) and the oil inlet pipe (4).
2. The automatic quantitative oil supply system according to claim 1, characterized in that, The overpressure protection return pipeline includes a bypass pipe (6), one end of which is connected to the oil supply pipe (7) through a safety valve (601), and the other end of which is connected to the oil inlet pipe (4).
3. The automatic quantitative oil supply system according to claim 1, characterized in that, The oil inlet pipe (4), oil supply pipe (5), bypass pipe (6) and oil delivery pipe (7) are all double-layered pipes.
4. The automatic quantitative oil supply system according to claim 1, characterized in that, The gear pump (2) is made of stainless steel.
5. The automatic quantitative oil supply system according to claim 1, characterized in that, Both the oil supply pipe (5) near the volumetric flow meter (3) and the oil delivery pipe (7) near the gear pump (2) are fixedly equipped with anti-leakage check valves.
6. The automatic quantitative oil supply system according to claim 1, characterized in that, The housing (1) is fixedly equipped with a mounting bracket (101), and the gear pump (2) and the volumetric flow meter (3) are both fixedly mounted on the mounting bracket (101) by bolts.