Double-cup diesel filter with preheating function for heater

Abstract

The utility model discloses a double-cup diesel filter with a preheating function for a heater, which belongs to the technical field of diesel engines and comprises a double-cup filter cover, a first hollow filter cup, a second hollow filter cup, a filter element and a preheating rod. The first hollow filter cup and the second hollow filter cup are communicated with the double-cup filter cover, the filter element is arranged in the second hollow filter cup, and the two preheating rods are vertically arranged in the double-cup filter cover and respectively extend into the first hollow filter cup and the second hollow filter cup. The device is simple in structure and convenient to use, the stainless steel preheating rod and a double-cup system are adopted to preheat fuel oil in advance, and the problem that the fuel oil cannot be normally used due to wax precipitation in winter is solved; the oil return opening is formed in the double-cup filter cover, so that preheated return oil returns to the interior of the filter, heat loss is avoided, and it is guaranteed that the fuel oil heater can be normally ignited and combusted in winter.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel engines, and in particular relates to a double-cup diesel filter with a preheating function for a heater. Background Art

[0002] The diesel filter of the diesel engine is installed with the fuel heater to heat the diesel in a low temperature environment. Most fuel heaters on the market have a diesel filter, but no preheating function, or the preheating is insufficient. When used in winter, the fuel heater cannot work smoothly due to the waxing of the diesel. Due to the remote and cold areas, it is impossible to add diesel that meets the ambient temperature mark, which makes this problem more obvious.

[0003] A Chinese patent (CN201835959U) discloses an engine diesel filter heater. Although the technical solution discloses two cup-shaped devices, the heating of the two cup-shaped devices relies on the engine coolant to heat the filter. However, when the engine is started, the coolant is also cold, and the initial engine idle speed cannot heat the oil in the filter in a short time.

[0004] Therefore, how to ensure that the fuel is fully atomized and that users of the fuel heater have full use effects is a technical problem that those skilled in the art urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a double-cup diesel filter with a preheating function for a heater, which is used to solve the above-mentioned problem.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double-cup diesel filter with a preheating function for a heater comprises: a double-cup filter cover, a first air filter cup, a second air filter cup, a filter element and a preheating rod, wherein the first air filter cup and the second air filter cup are connected side by side at the bottom end of the double-cup filter cover, the first air filter cup and the second air filter cup are connected to the double-cup filter cover, the filter element is installed in the second air filter cup, and the two preheating rods are vertically installed in the double-cup filter cover and extend into the first air filter cup and the second air filter cup respectively.

[0008] Furthermore, the double-cup filter cover is provided with an oil inlet and an oil outlet, the oil inlet is communicated with the fuel tank, and the oil outlet is communicated with the fuel heater.

[0009] Furthermore, the double-cup filter cover is also provided with an oil return port for returning the preheated oil to the inside of the filter, and the oil inlet, the oil return port and the oil outlet are connected through a pipeline in the double-cup filter cover.

[0010] Furthermore, the preheating rod includes a shell, a heating component and a wire, the heating component is arranged inside the shell, and the wire is electrically connected to the heating component and extends out of the shell.

[0011] Furthermore, the heating component is a PTC heating component.

[0012] Furthermore, the shell is made of stainless steel.

[0013] Furthermore, the double-cup filter cover is made of die-cast aluminum.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has a simple structure, adopts a first air filter cup and a second air filter cup to be installed on a double-cup filter cover, wherein a filter element is arranged in the second air filter cup, and two preheating rods are respectively extended into the first air filter cup and the second air filter cup for heating, so that the fuel is preheated in advance, and the problem that the fuel cannot be used normally in winter due to waxing is solved; an oil return port is arranged on the double-cup filter cover, so that the preheated return oil returns to the inside of the filter, so as to avoid heat loss and ensure that the fuel heater can be ignited and burned normally in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 It is a cross-sectional view of a double-cup diesel filter with preheating function for a heater;

[0018] Figure 2 It is a top view of a double cup diesel filter with preheating function for a heater;

[0019] Figure 3 It is a structural schematic diagram of the preheating rod;

[0020] Among them, in the figure:

[0021] 10-double cup filter cover, 11-oil inlet, 12-oil outlet, 13-oil return port, 20-first air filter cup, 30-second air filter cup, 40-filter element, 50-preheating rod, 51-housing, 52-wire. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See attached Figure 1-3 As shown, the utility model provides a double-cup diesel filter with a preheating function for a heater, comprising: a double-cup filter cover 10, a first air filter cup 20, a second air filter cup 30, a filter element 40 and a preheating rod 50. The double-cup filter cover 10 is made of die-cast aluminum. The first air filter cup 20 and the second air filter cup 30 are connected side by side at the bottom end of the double-cup filter cover 10. The first air filter cup 20 and the second air filter cup 30 are connected to the double-cup filter cover 10. The filter element 40 is installed in the second air filter cup 30. Two preheating rods 50 are vertically installed in the double-cup filter cover 10 and extend into the first air filter cup 20 and the second air filter cup 30 respectively.

[0024] In a preferred embodiment, the double-cup filter cover 10 is provided with an oil inlet 11 and an oil outlet 12 , the oil inlet 11 is communicated with the fuel tank, and the oil outlet 12 is communicated with the fuel heater.

[0025] The first air filter cup 20 is not provided with a filter element 40, and the fuel tank enters the first air filter cup 20 through the fuel inlet 11. The fuel enters the second air filter cup 30 equipped with the filter element 40 after being fully preheated by the preheating rod 50. The entering fuel is purified by the filter element 40, and then preheated for the second time by the preheating rod 50, and enters the fuel heater from the oil outlet 12, providing the fuel heater with pure and preheated fuel.

[0026] In a preferred embodiment, the double-cup filter cover 10 is further provided with an oil return port 13, and the oil inlet 11, the oil return port 13 and the oil outlet 12 are connected through a pipeline in the double-cup filter cover 10, and the oil return port 13 is used to return the preheated return oil to the inside of the filter; the preheated return oil is returned to the inside of the filter to avoid heat loss, thereby ensuring that the fuel heater can ignite and burn normally in winter.

[0027] In a preferred embodiment, the preheating rod 50 includes a shell 51 , a heating component and a wire 52 . The heating component is disposed inside the shell 51 . The wire 52 is electrically connected to the heating component and extends out of the shell 51 .

[0028] In a preferred embodiment, the heating component is a PTC heating component.

[0029] In a preferred embodiment, the housing 51 is made of stainless steel.

[0030] The wire 52 is connected to the controller of the fuel heater. After power is turned on, the PTC heating component generates heat and the temperature is controlled at about 60°C to ensure that the waxed fuel in winter can be quickly dissolved and provide qualified fuel to the fuel pump.

[0031] Example

[0032] During use, the fuel tank enters the first air filter cup 20 through the oil inlet 11, and the fuel enters the second air filter cup 30 equipped with the filter element 40 after being fully preheated by the preheating rod 50. The entering fuel is purified by the filter element 40, and then preheated by the preheating rod 50 for a second time, and enters the fuel heater from the oil outlet 12, providing the fuel heater with pure and preheated fuel; the preheated fuel cannot enter the return oil of the fuel heater in time, and returns to the first air filter cup 20 to avoid heat loss.

[0033] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-cup diesel filter with preheating function for a heater, characterized in that: include: A double-cup filter cover (10), a first air filter cup (20), a second air filter cup (30), a filter element (40) and a preheating rod (50); the first air filter cup (20) and the second air filter cup (30) are connected side by side at the bottom end of the double-cup filter cover (10); the first air filter cup (20) and the second air filter cup (30) are connected to the double-cup filter cover (10); the filter element (40) is installed in the second air filter cup (30); and the two preheating rods (50) are vertically installed in the double-cup filter cover (10) and extend into the first air filter cup (20) and the second air filter cup (30) respectively.

2. A double-cup diesel filter with preheating function for a heater according to claim 1, characterized in that: The double-cup filter cover (10) is provided with an oil inlet (11) and an oil outlet (12); the oil inlet (11) is connected to the oil tank, and the oil outlet (12) is connected to the fuel heater.

3. A double-cup diesel filter with preheating function for a heater according to claim 2, characterized in that: The double-cup filter cover (10) is also provided with an oil return port (13) for returning preheated oil to the interior of the filter; the oil inlet (11), the oil return port (13) and the oil outlet (12) are connected via a pipeline in the double-cup filter cover (10).

4. A double-cup diesel filter with preheating function for a heater according to claim 1, characterized in that: The preheating rod (50) comprises a shell (51), a heating component and a wire (52); the heating component is arranged inside the shell (51); and the wire (52) is electrically connected to the heating component and extends out of the shell (51).

5. A double-cup diesel filter with preheating function for a heater according to claim 4, characterized in that: The heating component is a PTC heating component.

6. A double-cup diesel filter with preheating function for a heater according to claim 4, characterized in that: The housing (51) is made of stainless steel.

7. A double-cup diesel filter with preheating function for a heater according to claim 1, characterized in that: The double cup filter cover (10) is made of die-cast aluminum.

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