CN111336046A - Channel type and static heating combined fuel oil heating structure - Google Patents
Channel type and static heating combined fuel oil heating structure Download PDFInfo
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- CN111336046A CN111336046A CN202010279448.7A CN202010279448A CN111336046A CN 111336046 A CN111336046 A CN 111336046A CN 202010279448 A CN202010279448 A CN 202010279448A CN 111336046 A CN111336046 A CN 111336046A
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 95
- 238000010438 heat treatment Methods 0.000 title claims abstract description 68
- 230000003068 static effect Effects 0.000 title claims abstract description 19
- 239000000446 fuel Substances 0.000 claims abstract description 144
- 230000017525 heat dissipation Effects 0.000 claims abstract description 54
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 70
- 230000005855 radiation Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a channel type and static heating combined fuel oil heating structure, which comprises a middle vertical plate with an arc-shaped horizontal section, wherein the surface of one side of the middle vertical plate facing to the circle center of the middle vertical plate is an inner surface, and the surface of the other side of the middle vertical plate is an outer surface; the inner surface and the outer surface of the middle vertical plate are respectively attached and fixedly connected with an inner heat dissipation plate and an outer heat dissipation plate, the top end of the middle vertical plate is connected with an upper support plate, the lower end of the middle vertical plate is connected with a lower support plate, the upper support plate and the lower support plate are both used for being in compression joint with the inner surface of the shell of the fuel filter and enabling the outer heat dissipation plate and the inner wall of the shell of the fuel filter to form a gap, so that the shell is prevented from being directly heated, heat dissipated outwards. After the invention is adopted, the heating mode combining channel type heating and static heating is realized, the heating efficiency is higher, the energy loss is less, the channel fuel is heated more uniformly, the fuel and the static fuel at the channel are heated, and the filtration resistance of the fuel passing through the filter layer is reduced to the maximum extent while the energy is saved.
Description
Technical Field
The invention relates to the technical field of vehicle fuel oil filtering systems, in particular to a technology for heating fuel oil in a filter.
Background
The fuel filter is used as an important part of an engine fuel system, and has the functions of filtering impurities, water and other pollutants in fuel, providing clean fuel, preventing a fuel spray nozzle from being rusted and blocked, avoiding carbon deposition in a combustion chamber of an engine, further ensuring the normal operation of the fuel system, improving the reliability and prolonging the service life of the engine.
The lower the fuel temperature, the greater the viscosity and the greater the resistance through the filter element. Therefore, in order to reduce the filtration resistance of the filter element to the fuel, the fuel needs to be heated.
The electric heater in the traditional fuel filter structure has three typical structures, which are respectively:
1. the top side heating mainly is used for heating fuel entering from an oil inlet pipe, and the fuel heating filter has the advantages that the fuel entering from an oil inlet can be continuously heated, the heated fuel enters a filter cavity, and the cavity is large, so that the fuel passing through the filter layer is not effectively heated, and the filter resistance of the filter element to the fuel is large. The heating mode is to heat the fuel on the main flow channel of the fuel, and belongs to channel heating.
2. The advantage of bottom heating, which is mainly used to heat the fuel in the bottom of the housing, is that it is possible to heat the fuel already in the filter, which is not located in the main flow path of the fuel, but is in communication with the fuel in the main flow path of the fuel, and therefore this is static (fuel) heating.
The disadvantage of this method is that the fuel close to the filter layer is not heated when the engine is just started due to the slow heat transfer process, which results in a large filter resistance of the filter element to the fuel.
The former way realizes channel type and static heating respectively, and the defects are that the initial heating effect is poor.
3. The fuel oil near the filter layer can be heated, but the fuel oil can only be tightly attached to the structure of the inner wall of the filter shell, so that a lot of heat is taken away by the filter shell, and the energy waste rate is high, see Chinese patent 201721433468.5.
Therefore, it is necessary to provide a structure to solve the problems of slow heat conduction and low energy utilization rate.
Disclosure of Invention
The invention aims to provide a channel type and static heating combined fuel oil heating structure which can quickly heat fuel oil before entering a filter element and can reduce heat dissipated outwards.
In order to achieve the purpose, the channel type and static heating combined fuel oil heating structure comprises a middle vertical plate with an arc-shaped horizontal section, wherein one side surface of the middle vertical plate facing to the circle center of the middle vertical plate is an inner surface, and the other side surface of the middle vertical plate is an outer surface; when the filter is installed in the fuel filter, the inner surface of the middle vertical plate faces the filter element, and the outer surface of the middle vertical plate faces the shell of the fuel filter;
the inner surface of the middle vertical plate is fixedly connected with an inner heat dissipation plate in an attaching manner, and the outer surface of the middle vertical plate is fixedly connected with an outer heat dissipation plate in an attaching manner; the top end of the middle vertical plate is higher than the top end of the outer heat radiation plate and is connected with an upper support plate, the lower end of the middle vertical plate is lower than the bottom end of the outer heat radiation plate and is connected with a lower support plate, the upper support plate and the lower support plate are plastic pieces, the upper support plate and the lower support plate both extend outwards and are both wider than the outer heat radiation plate, and the upper support plate and the lower support plate are both used for being in compression joint with the inner surface of the shell of the fuel filter and enabling the outer heat radiation plate and the inner;
the middle vertical plate, the outer heat dissipation plate and the inner heat dissipation plate form a body, a plurality of electric heaters are uniformly arranged on the body, the left end part and the right end part of the outer heat dissipation plate are respectively a left oil through part and a right oil through part, and the left oil through part and the right oil through part are communicated with the outer surface of the filter element;
when the fuel oil filter is installed in the fuel oil filter, the oil inlet of the fuel oil filter is opposite to the outer heat dissipation plate, the path length of fuel oil reaching the left oil through part through the oil inlet of the fuel oil filter is a first path length, and the path length of fuel oil reaching the right oil through part through the oil inlet of the fuel oil filter is a second path length.
The electric heater is a PCT heater.
A plurality of upper support plates are arranged at intervals along the top end of the middle vertical plate, an upper oil through part for fuel oil to pass upwards is formed between every two adjacent upper support plates, and the upper oil through part is communicated with the outer surface of the filter element;
the outer heat dissipation plate between the upper support plate and the lower support plate is provided with a plurality of flow distribution plates, the flow distribution plates are used for being pressed with the inner surface of the shell of the fuel filter, and the flow distribution plates play a role in distributing fuel oil passing through the flow distribution plates while forming a gap between the outer heat dissipation plate and the inner wall of the shell of the fuel filter;
the fuel flowing to the filter element through the left oil through part and the right oil through part is called forward fuel, the fuel flowing to the filter element through the upper oil through part is called upward fuel, the included angle β between each flow distribution plate and the horizontal plane is adjusted until the volume ratio of the forward fuel to the upward fuel is 3 +/-0.1/1, and the path from the fuel oil to the upper oil through the oil inlet of the fuel filter is a third path;
the fuel flowing to the filter element through the left oil passing part is called left-direction fuel, the fuel flowing to the filter element through the right oil passing part is called right-direction fuel, and the volume ratio of the left-direction fuel to the right-direction fuel is the first path length/the second path length by adjusting the angle of an included angle α between the axial line of an oil inlet of the fuel filter and the radial direction of the outer heat dissipation plate.
The top and the bottom of the left end of the middle vertical plate are respectively connected with a spring piece which is inserted into a slot preset on the inner surface of the fuel filter shell, and the right part of the body is connected with a line outlet pipe rightwards along the tangential direction; the circuit outlet pipe is inserted into a through hole correspondingly formed in the fuel filter shell, and the circuit outlet pipe plays a role in fixing the body when being used for leading out a circuit.
The invention has the following advantages:
by adopting the invention, a gap is kept between the outer heat dissipation plate and the shell of the fuel filter, thereby avoiding directly heating the shell, reducing the heat dissipated outwards and improving the efficiency of heating fuel. After the invention is adopted, the heating mode combining channel type heating and static heating is realized, the heating area can be improved by more than 6 times compared with the prior art, the heating efficiency is higher, the energy loss is less, the channel fuel oil is heated more uniformly, the fuel oil and the static fuel oil at the channel are heated, and the filtration resistance of the fuel oil passing through the filter layer is reduced to the greatest extent while the energy is saved.
In the invention, the channel-type heating means that fuel flowing to the filter element through the first path, the second path and the third path is heated by the outer heat dissipation plate, and the channel-type heating is realized; the fuel on the inner side of the inner heat dissipation plate is not on a main channel where the fuel flows, when an engine of a motor vehicle is started, the fuel belongs to stored fuel, a part of the fuel also enters the filter layer, and the fuel at the channel also partially supplements the stored fuel. The invention heats the stored fuel oil, and avoids the conditions of low oil temperature and large filter resistance of the fuel oil entering the filter layer caused by only heating the fuel oil at the channel.
In the invention, the fuel oil entering the fuel oil filter can enter the filter element along the three flowing directions of the outer heat dissipation plate, namely the left direction, the right direction and the upward direction, so that the filtering resistance of the fuel oil filter can be reduced compared with one or two flowing directions.
The splitter plate has a dual function:
the fuel heating device comprises a fuel heating device, a fuel oil heating device and a fuel oil heating device, wherein the fuel heating device comprises a plurality of fuel oil distribution plates, the fuel oil distribution plates are arranged on the fuel oil heating device, the fuel oil heating device is used for distributing and uniformly heating fuel oil, the volume ratio of forward fuel oil to upward fuel oil is controlled by adjusting the included angle β between each distribution plate and the horizontal plane, so that the forward fuel oil is about 3 times of the upward fuel oil, more fuel oil is guaranteed to have a longer flow path along an outer heat dissipation plate, the distance of the fuel oil passing through an upward oil passing part is shorter, the total path of the forward fuel oil is longer, the shorter upward fuel oil (third.
And secondly, the support is used for reducing energy waste, the gap distance between the outer heat dissipation plate and the inner surface of the shell of the fuel filter is ensured, the outer heat dissipation plate between the upper support plate and the lower support plate is prevented from being too close to or even attached to the inner surface of the shell of the fuel filter, and further the outer heat dissipation plate is prevented from directly heating the shell of the fuel filter to cause more heat to be dissipated to the outside, so that the energy waste is reduced.
The invention is inserted into the slot on the inner surface of the fuel filter shell through the two spring pieces and is inserted into the through hole on the fuel filter shell through the line leading-out pipe, thereby limiting the position of the body, and leading the upper support plate, the lower support plate and the flow distribution plate to be in compression joint with the inner surface of the fuel filter shell, thus forming a structure matched with the fuel filter shell in a compression joint manner, having no bolt and nut and no fixed connecting piece such as a rivet and the like, being very convenient for assembly and disassembly, and improving the assembly and disassembly efficiency.
The structure of the line leading-out pipe has double functions of leading out the line and fixing the body, reduces parts, simplifies the structure and is convenient to mount and dismount.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic diagram of the relative positions of the oil inlet and the outer heat sink of the fuel filter.
Detailed Description
As shown in fig. 1 to 4, the channel-type and static heating combined fuel oil heating structure of the present invention includes a middle vertical plate 1 having an arc horizontal section, wherein a surface of one side of the middle vertical plate 1 facing to a center of the circle is an inner surface, and a surface of the other side is an outer surface; when the filter is installed in a fuel filter, the inner surface of the middle vertical plate 1 faces a filter element, and the outer surface of the middle vertical plate faces a shell of the fuel filter;
the inner surface of the middle vertical plate 1 is fixedly connected with an inner heat dissipation plate 2 in an attaching manner, and the outer surface of the middle vertical plate 1 is fixedly connected with an outer heat dissipation plate 3 in an attaching manner; the top end of the middle vertical plate 1 is higher than the top end of the outer heat dissipation plate 3 and is connected with an upper support plate 4, the lower end of the middle vertical plate 1 is lower than the bottom end of the outer heat dissipation plate 3 and is connected with a lower support plate 5, the upper support plate 4 and the lower support plate 5 are plastic pieces, the upper support plate 4 and the lower support plate 5 both extend outwards and are both wider than the outer heat dissipation plate 3, and the upper support plate 4 and the lower support plate 5 are both used for being in compression joint with the inner surface of a shell of a fuel filter and enabling the outer heat dissipation plate 3 and the inner;
the middle vertical plate 1, the outer heat dissipation plate 3 and the inner heat dissipation plate 2 form a body, a plurality of electric heaters 6 are uniformly arranged on the body, the left end part and the right end part of the outer heat dissipation plate 3 are respectively provided with a left oil through part 7 and a right oil through part 8, and the left oil through part 7 and the right oil through part 8 are communicated with the outer surface of the filter element; the outer surface of the filter element is an oil inlet part of the filter element, the filter element is provided with a central tube, fuel oil is filtered when passing through a filter layer of the filter element through the oil inlet part, and the filtered fuel oil enters the central tube; the central pipe is connected with an oil outlet of the fuel filter.
When the fuel oil filter is installed in the fuel oil filter, the oil inlet 11 of the fuel oil filter is opposite to the lower part of the right side of the outer heat dissipation plate 3, the path length of fuel oil reaching the left oil passing part 7 through the oil inlet 11 of the fuel oil filter is a first path length, and the path length of fuel oil reaching the right oil passing part 8 through the oil inlet 11 of the fuel oil filter is a second path length.
By adopting the invention, a gap is kept between the outer heat dissipation plate 3 and the shell of the fuel filter, thereby avoiding directly heating the shell, reducing the heat dissipated outwards and improving the efficiency of heating fuel. After the invention is adopted, the heating mode combining channel type heating and static heating is realized, the heating area can be improved by more than 6 times compared with the prior art, the heating efficiency is higher, the energy loss is less, the channel fuel oil is heated more uniformly, the fuel oil and the static fuel oil at the channel are heated, and the filtration resistance of the fuel oil passing through the filter layer is reduced to the greatest extent while the energy is saved.
In the invention, the channel-type heating means that the fuel flowing to the filter element through the first path, the second path and the third path is heated by the outer heat dissipation plate 3, and the channel-type heating is carried out; the fuel on the inner side of the inner heat radiation plate 2 is not on a main channel where the fuel flows, when an engine of a motor vehicle is started, the fuel belongs to stored fuel, a part of the fuel enters the filter layer, and a part of the fuel at the channel is supplemented into the stored fuel. The invention heats the stored fuel oil, and avoids the conditions of low oil temperature and large filter resistance of the fuel oil entering the filter layer caused by only heating the fuel oil at the channel.
The electric heater 6 is a PCT heater.
A plurality of upper support plates 4 are arranged at intervals along the top end of the middle vertical plate 1, groove-shaped upper oil through parts 9 for fuel oil to pass upwards are formed between the adjacent upper support plates 4, and the upper oil through parts 9 are communicated with the outer surface of the filter element;
the outer heat dissipation plate 3 between the upper support plate 4 and the lower support plate 5 is provided with a plurality of flow distribution plates 10, the flow distribution plates 10 are used for being in pressure joint with the inner surface of the shell of the fuel filter, and the flow distribution plates 10 play a role in distributing fuel passing through the flow distribution plates 10 while forming a gap between the outer heat dissipation plate 3 and the inner wall of the shell of the fuel filter;
the flow distribution plates 10 are arranged in a left-high-right-low mode, most of fuel oil flows to the filter element through the left oil through part 7 and the right oil through part 8, and a small part of fuel oil flows upwards to the filter element through the upper oil through part 9;
the fuel flowing to the filter element through the left oil passing part 7 is called left-direction fuel, the fuel flowing to the filter element through the right oil passing part 8 is called right-direction fuel, and the volume ratio of the left-direction fuel to the right-direction fuel is the first path length/the second path length by adjusting the angle of an included angle α between the axial line of an oil inlet 11 of the fuel filter and the radial direction of the outer heat dissipation plate 3.
In the invention, the fuel oil entering the fuel oil filter can enter the filter element along the three flowing directions of the outer heat dissipation plate 3, namely the left direction, the right direction and the upward direction, so that the filtering resistance of the invention to the fuel oil can be reduced compared with one or two flowing directions.
The diverter plate 10 has a dual purpose:
the fuel heating device comprises a fuel heating device, a fuel oil heating device and a fuel oil heating device, wherein the fuel heating device comprises a plurality of flow distribution plates 10, the flow distribution plates are arranged on the horizontal plane, the included angle β between each flow distribution plate 10 and the horizontal plane is adjusted to control the volume ratio of forward fuel oil to upward fuel oil, so that the forward fuel oil is about 3 times of the upward fuel oil, more fuel oil is guaranteed to have a longer flow path along an outer heat dissipation plate 3, the distance of the fuel oil passing through an upward fuel oil passing part 9 is shorter, the total path of the forward fuel oil is longer, the shorter upward fuel oil (third path) path is matched with smaller flow, and the longer forward fuel oil path.
Secondly, support in order to reduce the energy waste, guarantee the clearance distance between outer heat dissipation plate 3 and the casing internal surface that fires oil filter, avoid going up the internal surface that outer heat dissipation plate 3 between extension board 4 and the lower extension board 5 is too close even laminating the casing that fires oil filter, and then avoid outer heat dissipation plate 3 directly to heat oil filter's casing and lead to giving off more heat to the external world, reduce the energy waste.
The top and the bottom of the left end of the middle vertical plate 1 are respectively connected with a spring leaf 12 which is inserted into a slot preset on the inner surface of the fuel filter shell, and the right part of the body is connected with a line outlet pipe 13 rightwards along the tangential direction; the circuit outlet pipe 13 is inserted into a through hole correspondingly arranged on the fuel filter shell, and the circuit outlet pipe 13 plays a role of fixing the body when being used for leading out circuits of electronic elements such as a PCT heater and the like. The structure of the line leading-out pipe 13 has double functions of leading out the line and fixing the body, reduces components, simplifies the structure and is convenient to mount and dismount.
The invention is inserted into the slot on the inner surface of the fuel filter shell through the two spring pieces 12 and is inserted into the through hole on the fuel filter shell through the line leading-out pipe 13, thereby limiting the position of the body, and leading the upper support plate 4, the lower support plate 5 and the flow distribution plate 10 to be pressed and connected with the inner surface of the fuel filter shell, thus forming a structure matched with the fuel filter shell in a plugging and pressing way, having no bolt and nut, having no fixed connecting piece such as a rivet and the like, being very convenient for assembly and disassembly, and improving the assembly and disassembly efficiency.
When the fuel filter is used, the fuel filter is arranged in the fuel filter, is inserted into the slot on the inner surface of the shell of the fuel filter through the four spring pieces 12 forwards, and is pressed with the inner surface of the shell of the fuel filter through the upper support plate 4, the lower support plate 5 and the flow distribution plate 10 backwards, so that the fuel filter is fixed in the fuel filter, and a gap is kept between the outer heat dissipation plate 3 and the inner surface of the shell of the fuel filter. The width of the gap can be adjusted by adjusting the widths of the upper support plate 4, the lower support plate 5 and the flow distribution plate 10.
The oil inlet 11 of the fuel filter is opposite to the lower part of the right side of the outer heat radiation plate 3, when the engine is started, the oil pump of the motor vehicle is started, the PCT heater is started simultaneously, and fuel entering the fuel filter can enter the filter element along the three flowing directions of the outer heat radiation plate 3, namely the left direction, the right direction and the upward direction, so that the filtering resistance of the fuel filter on the fuel can be reduced compared with one or two flowing directions.
The heat generated by the PCT heater heats the outer heat dissipation plate 3 and the inner heat dissipation plate 2, the outer heat dissipation plate 3 heats the channel fuel oil newly entering the fuel oil filter, the inner heat dissipation plate 2 heats the relatively static stored fuel oil, the oil temperature of the fuel oil passing through the filter layer is ensured to be higher, the filter resistance is lower during passing, and the smooth and normal starting of the engine is ensured.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (4)
1. The fuel heating structure that passageway formula and static heating combine, its characterized in that: the middle vertical plate is provided with an arc-shaped horizontal section, one side surface of the middle vertical plate facing the circle center is an inner surface, and the other side surface is an outer surface; when the filter is installed in the fuel filter, the inner surface of the middle vertical plate faces the filter element, and the outer surface of the middle vertical plate faces the shell of the fuel filter;
the inner surface of the middle vertical plate is fixedly connected with an inner heat dissipation plate in an attaching manner, and the outer surface of the middle vertical plate is fixedly connected with an outer heat dissipation plate in an attaching manner; the top end of the middle vertical plate is higher than the top end of the outer heat radiation plate and is connected with an upper support plate, the lower end of the middle vertical plate is lower than the bottom end of the outer heat radiation plate and is connected with a lower support plate, the upper support plate and the lower support plate are plastic pieces, the upper support plate and the lower support plate both extend outwards and are both wider than the outer heat radiation plate, and the upper support plate and the lower support plate are both used for being in compression joint with the inner surface of the shell of the fuel filter and enabling the outer heat radiation plate and the inner;
the middle vertical plate, the outer heat dissipation plate and the inner heat dissipation plate form a body, a plurality of electric heaters are uniformly arranged on the body, the left end part and the right end part of the outer heat dissipation plate are respectively a left oil through part and a right oil through part, and the left oil through part and the right oil through part are communicated with the outer surface of the filter element;
when the fuel oil filter is installed in the fuel oil filter, the oil inlet of the fuel oil filter is opposite to the outer heat dissipation plate, the path length of fuel oil reaching the left oil through part through the oil inlet of the fuel oil filter is a first path length, and the path length of fuel oil reaching the right oil through part through the oil inlet of the fuel oil filter is a second path length.
2. The combination tunnel and static heating fuel heating structure as set forth in claim 1, wherein: the electric heater is a PCT heater.
3. The combination tunnel and static heating fuel heating structure as set forth in claim 1, wherein: a plurality of upper support plates are arranged at intervals along the top end of the middle vertical plate, an upper oil through part for fuel oil to pass upwards is formed between every two adjacent upper support plates, and the upper oil through part is communicated with the outer surface of the filter element;
the outer heat dissipation plate between the upper support plate and the lower support plate is provided with a plurality of flow distribution plates, the flow distribution plates are used for being pressed with the inner surface of the shell of the fuel filter, and the flow distribution plates play a role in distributing fuel oil passing through the flow distribution plates while forming a gap between the outer heat dissipation plate and the inner wall of the shell of the fuel filter;
the fuel flowing to the filter element through the left oil through part and the right oil through part is called forward fuel, the fuel flowing to the filter element through the upper oil through part is called upward fuel, the included angle β between each flow distribution plate and the horizontal plane is adjusted until the volume ratio of the forward fuel to the upward fuel is 3 +/-0.1/1, and the path from the fuel oil to the upper oil through the oil inlet of the fuel filter is a third path;
the fuel flowing to the filter element through the left oil passing part is called left-direction fuel, the fuel flowing to the filter element through the right oil passing part is called right-direction fuel, and the volume ratio of the left-direction fuel to the right-direction fuel is the first path length/the second path length by adjusting the angle of an included angle α between the axial line of an oil inlet of the fuel filter and the radial direction of the outer heat dissipation plate.
4. The combination tunnel and static heating fuel oil heating structure as set forth in any one of claims 1 to 3, wherein: the top and the bottom of the left end of the middle vertical plate are respectively connected with a spring piece which is inserted into a slot preset on the inner surface of the fuel filter shell, and the right part of the body is connected with a line outlet pipe rightwards along the tangential direction; the circuit outlet pipe is inserted into a through hole correspondingly formed in the fuel filter shell, and the circuit outlet pipe plays a role in fixing the body when being used for leading out a circuit.
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| CN202010279448.7A CN111336046B (en) | 2020-04-10 | 2020-04-10 | Channel type and static heating combined fuel heating structure |
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| CN202010279448.7A CN111336046B (en) | 2020-04-10 | 2020-04-10 | Channel type and static heating combined fuel heating structure |
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| Title |
|---|
| 倪春耕;李明;: "柴油滤清器结构及加热装置的应用", 科技致富向导, no. 23, 5 August 2011 (2011-08-05), pages 135 * |
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| CN111336046B (en) | 2024-08-30 |
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