A mobile oil tank automatic control heating device

Abstract

The utility model discloses a mobile oil tank automatic control heating device, which belongs to the technical field of hydraulic or lubricating oil heating. The mobile oil tank automatic control heating device of the utility model comprises a heating container, a heat-conducting baffle cavity is vertically fixed in the heating container, a heating resistor is fixed in the heat-conducting baffle cavity, and the gap between the heating resistor and the heat-conducting baffle cavity is filled with a thermal grease layer; the heating resistor is electrically connected to the automatic heating control cabinet through an electric control circuit; the heating container is connected to the mobile oil tank through an oil circulation flow pipeline; since the thermal grease material has high thermal conductivity, it has excellent thermal conductivity, good electrical insulation and a wide operating temperature, and its use stability is high. After the gap between the heating resistor and the heat-conducting baffle cavity is filled with the thermal grease layer, the oil and electricity are isolated without affecting the heat conduction effect, which solves the problem of the risk of explosion caused by the increase of the internal resistance of the heating resistor and the thermal runaway ignition of oil products.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic or lubricating oil heating, and more specifically relates to a mobile oil tank automatic control heating device. Background Art

[0002] Modern manufacturing companies have invested a lot in hydraulic and lubrication equipment. With the gradual upgrading and transformation of hydraulic technology, they are generally equipped with high value-added precision control components, which are heavy asset equipment in the industry. Generally, gas stations are equipped with automatic control heaters to maintain the stability of the oil supply temperature to ensure the stable operation of precision control components such as servo valves and proportional valves in winter.

[0003] Usually, the heater is inside the fuel tank, and there is a risk of explosion due to increased internal resistance of the heater, which may lead to thermal runaway and ignition of the fuel. Moreover, once a failure occurs and the heater cannot be heated, the fuel needs to be completely pumped out before the heater can be replaced. In reality, the volume of a large fuel station often exceeds 10,000L, and it takes a long time to completely pump out the fuel. This not only increases the labor intensity of the personnel, but also reduces the operating efficiency of the equipment. Utility Model Content

[0004] 1. Problem to be solved

[0005] Aiming at the problem that the internal resistance of the heater of the oil tank in the prior art increases, resulting in thermal runaway and ignition of oil products and causing deflagration, the utility model provides a mobile oil tank automatic control heating device. The utility model fills the gap between the heating resistor and the heat-conducting baffle cavity with a heat-conducting silicone grease layer to isolate the oil from electricity, thereby achieving the purpose of preventing the oil products from causing deflagration.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0008] A mobile oil tank automatic control heating device comprises a heating container, a heat-conducting baffle cavity is vertically fixed in the heating container, a heating resistor is fixed in the heat-conducting baffle cavity, and the gap between the heating resistor and the heat-conducting baffle cavity is filled with a thermal grease layer; the heating resistor is electrically connected to an automatic heating control cabinet through an electric control circuit; the heating container is connected to the mobile oil tank through an oil circulation flow pipeline; since the thermal grease material has high thermal conductivity, it has excellent thermal conductivity, good electrical insulation and a wide operating temperature, and has high stability in use. After the gap between the heating resistor and the heat-conducting baffle cavity is filled with the thermal grease layer, the oil and electricity are isolated without affecting the heat conduction effect, thereby achieving the technical effect of avoiding the risk of explosion caused by thermal runaway ignition of oil due to the increase of internal resistance of the heating resistor.

[0009] A further technical solution is that there are multiple heat-conducting baffle cavities in parallel, and their fixed ends are staggeredly fixed on the upper inner wall and the lower inner wall of the heating container. Gaps for the circulation of oil liquid are reserved between the corresponding free ends and the lower inner wall and the upper inner wall, so as to achieve the purpose of uniformly heating the oil while improving the heating effect.

[0010] A further technical solution is that there are multiple heating resistors arranged side by side in each heat-conducting baffle cavity, and the multiple heating resistors are electrically connected to the electronic control circuit in parallel. Damage to a single heating resistor does not affect the operation of other heating resistors, and there is no need to extract all the oil before replacing the heating resistor, thereby achieving the purpose of reducing the frequency of replacing or repairing the heating resistors.

[0011] A further technical solution is that the heating resistor is a PTC ceramic heating piece, which is evenly distributed inside the heating container. It has a rapid temperature rise and fast temperature compensation for the oil, has no chemical reaction with the thermal grease, and is convenient for the positioning fixation of the thermal grease.

[0012] A further technical solution is that the peripheral surface of the PTC ceramic heating plate is a frosted surface to improve the positioning and fixing effect of the thermal grease.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The mobile oil tank automatic control heating device of the utility model adopts PTC ceramic heating sheets as sub-components, which are evenly distributed inside the cylinder, and the oil and electricity are isolated through the special design of the thermal conductive silicone grease layer, so as to avoid the accidental increase of the internal resistance of the ceramic heater and thermal runaway, which leads to the high temperature of the oil and causes explosion;

[0016] (2) The mobile oil tank automatic control heating device of the utility model connects the oil tank temperature sensor data to the heating controller, sets the heating temperature through the PLC panel, and automatically controls the heating power to ensure the constant temperature of the oil tank; the mobile oil tank heating device is small in size and can be quickly installed and put into use without being restricted by site space; the PTC ceramic heating plate and the compartment are filled with high-temperature resistant thermal conductive silicone grease, and the heating temperature is uniform and efficient; the PTC ceramic heating device is connected in parallel, and the damage of a single PTC does not affect the operation of other PTCs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a vertical cross-sectional schematic diagram of a mobile oil tank automatic control heating device according to a specific embodiment of the utility model.

[0018] In the figure: 1. Heating container; 2. Heat-conducting baffle cavity; 3. Heating resistor; 4. Mobile oil tank; 5. Circulating oil pump; 6. Automatic heating control cabinet; 7. Oil circulation flow pipeline; 8. Electronic control circuit; 9. Thermal grease layer; 41. Temperature sensor. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with specific embodiments.

[0020] Example 1

[0021] The mobile oil tank automatic control heating device of this embodiment is as follows: Figure 1 As shown, it includes a heating container 1, which is generally a barrel-shaped or box-shaped window, in which a heat-conducting baffle cavity 2 is vertically fixed, in which a heating resistor 3 is fixed, and the gap between the heating resistor 3 and the heat-conducting baffle cavity 2 is filled with a heat-conducting silicone grease layer 9; the heating resistor 3 is electrically connected to the automatic heating control cabinet 6 through an electric control circuit 8; the heating container 1 is connected to the mobile oil tank 4 through an oil circulation flow pipeline 7.

[0022] In the mobile oil tank automatic control heating device of this embodiment, during specific use, since the thermal grease material has high thermal conductivity, the prepared thermal grease layer 9 has excellent thermal conductivity, good electrical insulation and a wide operating temperature, and has high stability in use. After the gap between the heating resistor 3 and the thermal baffle cavity 2 is filled with the thermal grease layer 9, the oil and electricity are isolated without affecting the thermal conductivity effect, thereby achieving the technical effect of avoiding the risk of explosion caused by thermal runaway ignition of oil due to increase in the internal resistance of the heating resistor 3.

[0023] Example 2

[0024] The mobile oil tank automatic control heating device of this embodiment has the same basic structure as the embodiment 1, and the difference or improvement is that: the heat-conducting baffle cavity 2 is a plurality of parallel ones, such as Figure 1 The figure shows 5 rows, whose fixed ends are staggeredly fixed on the upper inner wall and the lower inner wall of the heating container 1, and the corresponding free ends are reserved between the lower inner wall and the upper inner wall for the circulation of oil, forming an S-shaped oil path, so as to improve the heating effect and heat the oil uniformly. Figure 1Four are shown. Multiple heating resistors 3 are electrically connected to the electric control circuit 8 in parallel. The damage of a single heating resistor 3 does not affect the operation of other heating resistors 3. There is no need to replace the heating resistor 3 after all the oil is extracted, so as to reduce the frequency of replacing or repairing the heating resistor 3. The heating resistor 3 is a PTC ceramic heating piece, which is evenly distributed inside the heating container 1. It has a rapid temperature rise and fast temperature compensation for the oil. It has no chemical reaction with the thermal grease, which is convenient for the positioning fixation of the thermal grease. The peripheral surface of the PTC ceramic heating piece in contact with the thermal grease layer 9 is a frosted surface, which improves the positioning fixation effect of the thermal grease layer 9. The mobile oil tank 4 has a built-in temperature sensor 41. The temperature sensor 41 is electrically connected to the automatic heating control cabinet 6 through the electric control circuit 8, so as to control the heating of the PTC ceramic heating piece through the automatic heating control cabinet 6. The oil circulation pipeline 7 is connected to the circulating oil pump 5 to realize the circulation of the oil in the oil circulation pipeline 7 and the heating container 1, so as to realize the stable setting of the oil temperature in the mobile oil tank 4. The upper cover of the heating container 1 is fixed by bolts, and the cover is fixedly connected to the heat-conducting baffle cavity 2 at the upper end, which is convenient for replacing the heat-conducting baffle cavity 2. It is detachable and there is no need to extract all the oil before replacing the PTC ceramic heating plate.

[0025] The examples described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A mobile oil tank automatic control heating device, characterized in that: The invention comprises a heating container (1), a heat-conducting baffle cavity (2) being vertically fixed in the heating container (1), a heating resistor (3) being fixed in the heat-conducting baffle cavity (2), and a gap between the heating resistor (3) and the heat-conducting baffle cavity (2) being filled with a heat-conducting silicone grease layer (9); the heating resistor (3) being electrically connected to an automatic heating control cabinet (6) via an electric control circuit (8); and the heating container (1) being connected to a mobile oil tank (4) via an oil circulation flow pipeline (7).

2. The mobile oil tank automatic control heating device according to claim 1 is characterized in that: The heat-conducting baffle cavities (2) are multiple and arranged in parallel, and their fixed ends are fixed in an offset manner on the upper inner wall and the lower inner wall of the heating container (1), and gaps for the circulation of oil liquid are reserved between the corresponding free ends and the lower inner wall and the upper inner wall.

3. The mobile oil tank automatic control heating device according to claim 2 is characterized in that: There are a plurality of heating resistors (3) arranged side by side in each heat-conducting baffle cavity (2), and the plurality of heating resistors (3) are electrically connected to the electric control circuit (8) in parallel.

4. The mobile oil tank automatic control heating device according to any one of claims 1 to 3, characterized in that: The heating resistor (3) is a PTC ceramic heating element.

5. The mobile oil tank automatic control heating device according to claim 4 is characterized in that: The peripheral surface of the PTC ceramic heating plate is a frosted surface.

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