A liquid heater for a mining card

Abstract

The present disclosure relates to the technical field of mining, and one embodiment of the present disclosure provides a liquid heater for a mine card, which comprises a heat exchanger body, a circulating water pump is arranged on the side wall of the heat exchanger body, an anti-rolling fixing assembly is arranged on the heat exchanger body, and an air inlet protection assembly is arranged on the opposite side wall of the heat exchanger body. The anti-rolling fixing assembly comprises a mounting pad, the inner side wall of the mounting frame is provided with a pull plate, the pull plate is provided with a pull groove on the upper side, the pull groove is embedded with a smoke exhaust pipe, the mounting pad is provided with a mounting piece, and the mounting piece is arranged between the mounting pad and the mounting frame. Through the above technical scheme, the technical problem that the existing heating solution has obvious shortcomings, part of the mine card adopts an external heater water pump circulation, the engine coolant is pumped out, heated and then returned, this mode has great demand for battery capacity, and cannot consider the preheating of lubricating oil, and is difficult to meet the preheating and heat preservation requirements of the mine card engine in extremely cold areas.

Description

Technical Field

[0001] Embodiments of this disclosure relate to the field of mining technology, and more specifically, to a liquid heater for mining trucks. Background Technology

[0002] With the rise of new energy mining trucks, the working state of batteries is closely related to temperature. High-capacity battery systems are extremely sensitive to temperature during charging and discharging. In low-temperature environments, battery activity decreases, charging and discharging efficiency drops significantly, and battery life is severely affected. If the battery temperature is too low, it may even be unable to discharge to the outside, causing the vehicle to fail to start. For example, in some mining areas without heated storage facilities, after mining trucks are parked for a long time at night, the power battery temperature drops sharply, failing to meet the power requirements for vehicle starting and normal operation.

[0003] Traditional heating solutions have significant shortcomings. Some mining trucks use external heaters and water pumps to circulate coolant from the engine, heating it before returning it. This method requires a large battery capacity and cannot simultaneously preheat the lubricating oil, making it difficult to meet the preheating and insulation requirements of mining truck engines in extremely cold regions. Other methods use electric heating to heat circulating water, lubricating oil, and fuel using electric heating elements. However, due to the power limitations of the electric heating elements, not only is an external power source required, but it also usually needs to be used in an insulated factory. Moreover, localized heating can easily cause oil deterioration, making its applicability extremely limited. In addition, insulation measures such as designing engine insulation compartments and wrapping with heat insulation cotton can generally only be used as auxiliary means and are difficult to independently meet the heating needs under harsh operating conditions.

[0004] In addition, mining trucks operate under complex conditions and frequently experience road bumps, which places extremely high demands on the stability of the equipment on the truck. Traditional liquid heating devices are insufficient in resisting bumps. Under prolonged and intense bumps and vibrations, the device components are prone to loosening, displacement, or even damage, causing the heating function to fail and affecting the normal operation of the mining truck. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a liquid heater for mining trucks, which solves the obvious shortcomings of the heating solutions in the prior art. Some mining trucks use an external heater and water pump circulation to draw out the coolant from the engine, heat it, and then return it. This method has a huge demand on battery capacity and cannot take into account the preheating of lubricating oil, making it difficult to meet the technical problems of preheating and heat preservation requirements of mining truck engines in extremely cold regions.

[0006] According to one aspect, at least one embodiment of this disclosure provides a liquid heater for mining trucks, comprising: A heat exchanger body, wherein a circulating water pump is provided on the side wall of the heat exchanger body; Anti-bump fixing assembly, wherein the anti-bump fixing assembly is disposed on the heat exchanger body; An air inlet protection assembly is disposed on the side wall of the heat exchanger body pair; The anti-bump fixing assembly includes a mounting liner, a mounting frame is provided on the side wall of the mounting liner, a pull plate is provided on the inner side wall of the mounting frame, the pull plate has a groove on the upper side, a smoke exhaust pipe is embedded in the groove, and a mounting piece is provided on the mounting liner, the mounting piece is installed between the mounting liner and the mounting frame.

[0007] As a further technical solution, the side wall of the heat exchanger body is provided with a fixing liner, the fixing liner is provided with a fixing bracket, the fixing bracket is provided with a fixing hoop, and the fixing hoop is fitted onto the circulating water pump.

[0008] As a further technical solution, the air inlet protection component includes an air inlet, an air inlet through hole, a tapered air inlet strip, a connecting shaft, and a sealing plate fitted on the connecting shaft, the sealing plate matching the shape of the air inlet aperture.

[0009] As a further technical solution, the sealing plate is sealed and fitted with the air inlet hole, and the sealing plate is provided with a self-rotating sleeve, which is movably fitted with the connecting shaft.

[0010] As a further technical solution, the outer side wall of the mounting frame is provided with a connecting piece, and the connecting piece is provided with bolt mounting holes.

[0011] As a further technical solution, a reinforcing rib is provided between the connecting piece and the mounting frame.

[0012] As a further technical solution, an electrical control box is provided on the side wall of the heat exchanger body. The electrical control box is sealed to the heat exchanger body and is also waterproof.

[0013] As a further technical solution, a conduit is provided between the circulating water pump and the heat exchanger body, and two fixing clamps are provided, which are fitted onto the opposite ends of the circulating water pump.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the circulating water pump is securely installed on the side wall of the heat exchanger body through fixing clamps and fixing brackets to ensure a stable connection and prevent displacement or pipe detachment caused by the bumps of the mining truck. Its stable liquid delivery capacity can quickly deliver high-temperature coolant to the area of ​​the mining truck that needs to be heated, achieving efficient heat transfer. When heating the cooling system of the mining truck engine, compared with traditional heating devices, this heater can significantly improve the engine starting performance after low-temperature start-up and reduce the wear of the engine caused by cold start. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric view of the heat exchanger body disclosed herein; Figure 3 This is an isometric view of the air inlet of this disclosure; In the diagram: 1. Heat exchanger body; 2. Circulating water pump; 3. Anti-bump fixing assembly; 3-1. Mounting liner; 3-2. Mounting frame; 3-3. Pull plate; 3-4. Pull groove; 3-5. Exhaust pipe; 3-6. Mounting plate; 3-7. Fixing liner; 3-8. Fixing frame; 3-9. Fixing hoop; 4. Air inlet protection assembly; 4-1. Air inlet; 4-2. Air inlet through hole; 4-3. Conical air inlet strip; 4-4. Connecting shaft; 4-5. Sealing plate; 4-6. Rotating sleeve; 5. Connecting plate; 6. Bolt mounting hole; 7. Reinforcing rib; 8. Electrical control box; 9. Conduit. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-3 As shown, it illustrates a liquid heater for mining trucks according to this disclosure, characterized in that it comprises: A heat exchanger body 1, wherein a circulating water pump 2 is provided on the side wall of the heat exchanger body 1; Anti-bump fixing component 3, wherein the anti-bump fixing component 3 is disposed on the heat exchanger body 1; Air inlet protection component 4, which is disposed on the side wall of the heat exchanger body 1; The anti-bump fixing assembly 3 includes a mounting liner 3-1, a mounting frame 3-2 is provided on the side wall of the mounting liner 3-1, a pull plate 3-3 is provided on the inner side wall of the mounting frame 3-2, the pull plate 3-3 has a groove 3-4 on the upper side, a smoke exhaust pipe 3-5 is embedded in the groove 3-4, and a mounting piece 3-6 is provided on the mounting liner 3-1, the mounting piece 3-6 is installed between the mounting liner 3-1 and the mounting frame 3-2.

[0024] The air inlet protection component 4 includes an air inlet 4-1, an air inlet through hole 4-2, a tapered air inlet strip 4-3, a connecting shaft 4-4 on the air inlet 4-1, and a sealing plate 4-5 fitted on the connecting shaft 4-4, the sealing plate 4-5 matching the shape of the air inlet hole.

[0025] In some examples, a suitable location for installing the heat exchanger body 1 on the mining truck is determined. This location should facilitate the installation and maintenance of subsequent components and ensure that the heat exchanger body 1 is not interfered with by other components during operation. A stable area near the battery or engine on the mining truck chassis can be selected, avoiding installation in locations susceptible to impact or excessive vibration. The mounting liner 3-1 is installed at the selected location on the heat exchanger body 1. The installation location should be able to effectively withstand the bumps and vibrations generated during equipment operation. The mounting liner 3-1 can be fixed to the heat exchanger body 1 using bolts or welding, ensuring that the mounting liner 3-1 fits tightly against the heat exchanger body 1. And it is firmly fixed. The mounting frame 3-2 is installed on the side wall of the mounting liner 3-1 and connected by bolts or welding. The pull plate 3-3 is installed on the inner side wall of the mounting frame 3-2. The pull plate 3-3 has a pull groove 3-4. The exhaust pipe 3-5 is embedded in the pull groove 3-4 to accommodate the slight displacement of the equipment in a bumpy environment. The mounting plate 3-6 is installed between the mounting liner 3-1 and the mounting frame 3-2. The mounting plate 3-6 plays a role in further stabilizing and buffering. The mounting plate 3-6 can be made of rubber or other materials with certain elasticity and shock absorption properties and is fixed in the corresponding position by bolts or adhesive.

[0026] An air inlet 4-1 is installed on the side wall of the heat exchanger body 1 where air needs to be introduced. The position of the air inlet 4-1 should ensure good ventilation while avoiding the intake of too much dust, debris, etc. The air inlet 4-1 can be fixed to the heat exchanger body 1 by bolts or welding to ensure a firm connection and good sealing to prevent air leakage.

[0027] An air inlet hole 4-2 is provided on the air inlet 4-1. The size and number of air inlet holes 4-2 are designed according to the air intake requirements of the equipment. A tapered air inlet strip 4-3 is installed on the air inlet hole 4-2. The tapered air inlet strip 4-3 can guide air into the air in a specific direction, improve the air intake efficiency, and at the same time, it has a certain blocking effect on larger debris. The tapered air inlet strip 4-3 can be fixed on the air inlet hole 4-2 by welding or slotting. The connecting shaft 4-4 is installed on the air inlet 4-1 to ensure that the connecting shaft 4-4 can rotate flexibly. A sealing plate 4-5 is fitted on the connecting shaft 4-4. The shape of the sealing plate 4-5 matches the air inlet hole 4-2 and can seal and fit with the air inlet hole 4-2 to effectively seal the air inlet 4-1 when air intake is not needed, preventing dust, rainwater and other substances from entering.

[0028] like Figures 1-3 As shown in the figure, this embodiment proposes that the side wall of the heat exchanger body 1 is provided with a fixing liner 3-7, the fixing liner 3-7 is provided with a fixing bracket 3-8, the fixing bracket 3-8 is provided with a fixing hoop 3-9, and the fixing hoop 3-9 is fitted onto the circulating water pump 2.

[0029] In some examples, the fixed liner 3-7 and the fixed bracket 3-8 are used to initially position the circulating water pump 2. Then, two fixed hoops 3-9 are fitted onto the opposite ends of the circulating water pump 2. The fixed hoops 3-9 are installed on the fixed bracket 3-8. By tightening the bolts on the fixed hoops 3-9, the circulating water pump 2 is firmly fixed to the side wall of the heat exchanger body 1.

[0030] For example, such as Figure 3 As shown, the sealing plate 4-5 is sealed and fitted with the air inlet hole 4-2. The sealing plate 4-5 is provided with a self-rotating sleeve 4-6, which is movably fitted with the connecting shaft 4-4.

[0031] In some examples, a self-rotating sleeve 4-6 is provided on the sealing plate 4-5. The self-rotating sleeve 4-6 is movably fitted with the connecting shaft 4-4, so that the sealing plate 4-5 can rotate freely relative to the connecting shaft 4-4. This makes it easy to open or close the air inlet 4-1 when needed. The sealing plate 4-5 can be automatically or manually controlled by installing a control mechanism (such as an electric or manual drive device) connected to the connecting shaft 4-4.

[0032] For example, such as Figure 2 As shown, the outer side wall of the mounting frame 3-2 is provided with a connecting piece 5, and the connecting piece 5 is provided with a bolt mounting hole 6.

[0033] In some examples, the inner wall of the mounting frame 3-2 is used to install the pull plate 3-3, and the outer wall is provided with a connecting piece 5. The connecting piece 5 has bolt mounting holes 6, through which the entire anti-bump fixing assembly 3 can be connected to the frame of the mining truck or other fixing structure.

[0034] For example, such as Figure 1 As shown, a reinforcing rib 7 is provided between the connecting piece and the mounting frame 3-2.

[0035] In some examples, to enhance the strength between the connecting piece 5 and the mounting frame 3-2, a reinforcing rib 7 is provided between them, and the reinforcing rib 7 can be fixed by welding.

[0036] For example, such as Figure 2 As shown, an electrical control box 8 is provided on the side wall of the heat exchanger body 1. The electrical control box 8 is sealed to the heat exchanger body 1, and the electrical control box 8 itself is also waterproof.

[0037] In some examples, the electrical control box 8 is installed at a suitable location on the side wall of the heat exchanger body 1. The electrical control box 8 is installed in a sealed manner with the heat exchanger body 1, such as by using sealing strips or gaskets, to prevent dust, moisture, etc. from entering the electrical control box 8 and affecting the normal operation of the internal electrical components. The electrical wiring in the electrical control box 8 is correctly connected to the electrical interfaces of the heat exchanger body 1, the circulating water pump 2 (if electrically controlled), the air inlet protection component 4 (if there are electrical control components), and other related equipment to ensure that the control system can effectively control the entire liquid heater.

[0038] For example, such as Figure 1 As shown, a conduit 9 is provided between the circulating water pump 2 and the heat exchanger body 1, and there are two fixing clamps 3-9, which are fitted onto the opposite ends of the circulating water pump 2.

[0039] In some examples, the circulating water pump 2 is installed in a pre-designed mounting position on the side wall of the heat exchanger body 1, and the circulating water pump 2 is connected to the heat exchanger body 1 through a conduit 9 to ensure a tight connection and prevent liquid leakage.

[0040] When in use, the liquid heater for mining trucks uses "liquid circulation heat exchange" as its core. After the system is started through the electronic control box 8, the heat exchanger body 1 provides heat through the combustion of atomized diesel fuel. As the heater heats up, the coolant (usually antifreeze or special heat transfer fluid) inside the heat exchanger body 1 is rapidly heated to the target temperature (generally 80-95℃, which can be preset and adjusted through the electronic control box 8), and the excess heat is provided to the engine.

[0041] When the coolant reaches the set temperature threshold, the electronic control box 8 triggers the start of the circulating water pump 2. The circulating water pump 2 forms a negative pressure suction through the conduit 9 to extract the high-temperature coolant from the heat exchanger body 1 and deliver it to the target area of ​​the mining truck that needs to be heated (such as the engine cooling system, the cab heating circuit, the battery insulation pipeline, etc.). After the high-temperature coolant completes heat exchange in the target area (such as preheating and antifreeze for the engine, and heating for the cab), the temperature drops to 30-50℃. Then, it is reinjected into the heat exchanger body 1 through the return conduit 9 to enter the next heating cycle, achieving a continuous and stable heat supply.

[0042] The electrical control box 8 acts as the "brain" of the system, collecting real-time data on the coolant temperature of the heat exchanger body 1 (via a built-in temperature sensor), the operating current of the circulating water pump 2, and the temperature demand signal of the target area of ​​the mining truck. When the coolant temperature is detected to be lower than the set value, the power of the heating element is automatically increased; if the temperature is too high, the power is reduced or heating is paused to prevent dry burning. At the same time, the operating status of the circulating water pump 2 is monitored. If a fault such as stall or leakage occurs, the shutdown protection is immediately triggered and an alarm is issued.

[0043] The circulating water pump 2 is firmly fixed to the side wall of the heat exchanger body 1 by the fixing hoop 3-9 and the fixing bracket 3-8 to prevent the pump from shifting or the guide tube 9 from falling off due to the bumps of the mine. When working, the pump impeller rotates at high speed to generate centrifugal force, which draws the coolant from the inlet and discharges it from the outlet, forming a stable liquid circulation flow. The connection between the guide tube 9 and the heat exchanger body 1 and the water pump adopts a sealing design to prevent coolant leakage and ensure that the heat transfer efficiency is not lost in each cycle.

[0044] When mining trucks travel on rugged mining roads, they experience severe bumps. The anti-bump fixing component 3 uses a multi-layer buffer structure to offset the vibrations: the mounting liner 3-1 is made of elastic rubber, which can absorb the lateral vibration between the heat exchanger body 1 and the mining truck frame; the pull plate 3-3 on the inner side of the mounting frame 3-2 can slide slightly along the pull groove 3-4 of the exhaust pipe 3-5 to compensate for longitudinal displacement; the reinforcing rib 7 between the connecting piece 5 and the mounting frame 3-2 enhances the overall structural rigidity, prevents component deformation, and ensures that the core components such as the heat exchanger body 1 and the circulating water pump 2 always maintain a stable relative position, without affecting the liquid circulation and heating functions.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A liquid heater for mining trucks, characterized in that, include: A heat exchanger body (1) is provided with a circulating water pump (2) on the side wall of the heat exchanger body (1); Anti-bump fixing assembly (3), the anti-bump fixing assembly (3) is disposed on the heat exchanger body (1); Air inlet protection assembly (4), the air inlet protection assembly (4) is disposed on the side wall of the heat exchanger body (1); The anti-bump fixing assembly (3) includes a mounting liner (3-1), a mounting frame (3-2) is provided on the side wall of the mounting liner (3-1), a pull plate (3-3) is provided on the inner side wall of the mounting frame (3-2), the pull plate (3-3) has a groove (3-4) on the upper side, a smoke exhaust pipe (3-5) is embedded in the groove (3-4), and a mounting piece (3-6) is provided on the mounting liner (3-1), the mounting piece (3-6) is installed between the mounting liner (3-1) and the mounting frame (3-2).

2. A liquid heater for mining trucks according to claim 1, characterized in that, The heat exchanger body (1) has a fixed liner (3-7) on its side wall, a fixed frame (3-8) on the fixed liner (3-7), a fixed hoop (3-9) on the fixed frame (3-8), and the fixed hoop (3-9) is fitted onto the circulating water pump (2).

3. A liquid heater for mining trucks according to claim 1, characterized in that, The air inlet protection component (4) includes an air inlet (4-1), an air inlet through hole (4-2) is provided on the air inlet (4-1), a tapered air inlet strip (4-3) is provided on the air inlet (4-2), a connecting shaft (4-4) is provided on the air inlet (4-1), and a sealing plate (4-5) is fitted on the connecting shaft (4-4), the sealing plate (4-5) matching the shape of the air inlet through hole (4-2).

4. A liquid heater for mining trucks according to claim 3, characterized in that, The sealing plate (4-5) is sealed and fitted with the air inlet hole (4-2). The sealing plate (4-5) is provided with a self-rotating sleeve (4-6), and the self-rotating sleeve (4-6) is movably fitted with the connecting shaft (4-4).

5. A liquid heater for mining trucks according to claim 1, characterized in that, The outer side wall of the mounting frame (3-2) is provided with a connecting piece (5), and the connecting piece (5) is provided with a bolt mounting hole (6).

6. A liquid heater for mining trucks according to claim 5, characterized in that, A reinforcing rib (7) is provided between the connecting piece (5) and the mounting frame (3-2).

7. A liquid heater for mining trucks according to claim 1, characterized in that, An electrical control box (8) is provided on the side wall of the heat exchanger body (1). The electrical control box (8) is sealed to the heat exchanger body (1), and the electrical control box (8) itself is also waterproof.

8. A liquid heater for mining trucks according to claim 2, characterized in that, A conduit (9) is provided between the circulating water pump (2) and the heat exchanger body (1). There are two fixing hoops (3-9), which are fitted onto the opposite ends of the circulating water pump (2).

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