Spraying device and diesel oil testing equipment
By designing the spray device, using the pipe body and spray assembly to disperse and refine cooling water, the problems of poor cooling water and inverted suction in diesel testing equipment are solved, and more efficient cooling and absorption are achieved, reducing safety hazards.
Patent Information
- Application Number
- CN202420614866.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In existing diesel testing equipment, the cooling water has poor cooling and absorption effects and is prone to insult, resulting in equipment damage and safety hazards.
A spray device is designed, including a pipe body, a first spray assembly and a second spray assembly. By introducing cooling water into the first end of the pipe body, and installing a first spray assembly on the first mounting part, a second spray assembly is provided at the second end of the pipe body, so that the cooling water is dispersed and refined, improving the cooling and absorption effect, and avoiding insucking.
It improves cooling and absorption efficiency, reduces safety hazards, avoids cooling water inversion, and extends the service life of the equipment.
Smart Images
Figure CN222695016U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of diesel testing, and in particular to a spray device and diesel testing equipment. Background Art
[0002] Cetane number is the most important indicator of automotive diesel, which is used to indicate the ignition performance of diesel. Diesel engines with different speeds have different requirements for the cetane number of diesel. The cetane number of diesel is measured in a standard test single-cylinder diesel engine under specified operating conditions. The corresponding test method is GB / T386-2021. The standard fuels used are n-hexadecane and heptamethylnonane. By blending these two compounds in different proportions, various standard fuels with different cetane numbers can be prepared.
[0003] In the related art, the test equipment used to test the cetane number includes a combustion device (usually a single-cylinder compression ignition engine), an exhaust device and a cooling device. The exhaust device includes an exhaust pipe connected to the exhaust port of the combustion device. During the entire test process, there is a process of incomplete combustion of the fuel, which produces a large amount of harmful substances. The cooling water is introduced into the exhaust pipe through the cooling water pipe of the cooling device to cool and absorb the exhaust gas before being discharged into the atmosphere. The cooling water of the cooling device has a poor effect on cooling the exhaust gas and absorbing harmful substances. At the same time, the cooling water is easy to gather near the exhaust pipe. After the test equipment is shut down, the cooling water is sucked back into the combustion chamber due to the negative pressure state in the combustion chamber, causing damage to the equipment and injury to the tester. Utility Model Content
[0004] The purpose of the present invention is to provide a spray device and diesel testing equipment. The spray device has a simple structure and is easy to manufacture and install. It can improve the problems of poor cooling and absorption of cooling water and easy backflow, improve cooling and absorption efficiency, and reduce safety hazards.
[0005] In order to achieve the above-mentioned object, the present disclosure provides a spray device for diesel testing equipment in a first aspect, comprising:
[0006] A tube body, comprising a first end and a second end, and a first water outlet and a second water outlet provided on a side wall of the tube body between the first end and the second end, a first mounting portion being formed between the first water outlet and the second water outlet, and the first end being used to be connected to a cooling water pipe;
[0007] A first spray assembly, disposed on the first mounting portion, for dispersing water discharged from the first water outlet; and
[0008] The second spray assembly is arranged at the second end of the tube body and is used for dispersing the water discharged from the second water outlet.
[0009] Optionally, the first spray assembly includes a first spray member and a bearing;
[0010] The first spray component includes a spray body and a plurality of blades arranged in the circumference of the spray body. The spray body is rotatably sleeved on the first mounting portion through the bearing.
[0011] Optionally, the second spray assembly comprises a conical cylinder having a plurality of flow guide holes, and the conical cylinder is open in a direction away from the tube body.
[0012] Optionally, the plurality of guide holes are evenly distributed along the circumference of the conical cylinder; and / or
[0013] The guide hole is constructed as a hexagonal hole.
[0014] Optionally, a ratio of a projected area of the plurality of guide holes in the first plane to a projected area of the conical cylinder in the first plane is 0.5-0.8;
[0015] Wherein, the first plane is a plane perpendicular to the extending direction of the tube body.
[0016] Optionally, a projected area of the first spray assembly in the first plane is smaller than a projected area of the second spray assembly in the first plane.
[0017] Optionally, a ratio of a projection area of the first spray component in the first plane to a projection area of the second spray component in the first plane is 0.45-0.75.
[0018] Optionally, the first water outlet and / or the second water outlet are both multiple and are arranged at intervals along the circumference of the tube body.
[0019] Optionally, a water inlet is formed at the first end of the tube body, and a threaded connection portion for connecting to the cooling water pipe is formed around the first end.
[0020] In a second aspect of the present disclosure, there is also provided a diesel testing device, comprising a combustion device, an exhaust device and the spray device provided in the first aspect of the present disclosure;
[0021] The exhaust device comprises an exhaust pipe connected to the exhaust port of the combustion device, at least part of the pipe body of the spray device, the first spray assembly and the second spray assembly are arranged on the exhaust pipe, and the first end of the pipe body is connected to the cooling water pipe.
[0022] Through the above technical solution, that is, the spray device of the present invention, the cooling water is introduced by connecting the first end of the tube body to the cooling water pipe, and the first spray assembly is installed on the first mounting part of the tube body, and the second spray assembly is arranged at the second end of the tube body, so that the cooling water flowing out of the first water outlet can be broken up and refined by the first spray assembly, and the cooling water flowing out of the second water outlet can be broken up and refined by the second spray assembly. On the one hand, the broken up and refined cooling water can better cool the gas in the drain pipe of the diesel test equipment and absorb harmful substances in the gas, thereby improving the cleanliness of the exhaust gas; on the other hand, since the cooling water entering the exhaust pipe is broken up and refined, it can be discharged together with the gas, thereby avoiding the cooling water back-inhalation and improving the safety performance of use. Through the above arrangement, the spray device of the present invention has a simple structure, is easy to manufacture and install, can improve the cooling and absorption effect of the cooling water, and the problem of easy back-inhalation, improve the cooling absorption efficiency, and reduce safety hazards.
[0023] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0025] Figure 1 It is a structural diagram of a spray device provided in some embodiments of the present disclosure.
[0026] Figure 2 It is a structural diagram of a spray device provided in some embodiments of the present disclosure, wherein the first spray component is not shown.
[0027] Figure 3 It is a top view of the spray device provided in some embodiments of the present disclosure, wherein the first spray assembly is not shown.
[0028] Figure 4 It is a structural diagram of the second spray assembly of the spray device provided in some embodiments of the present disclosure.
[0029] Figure 5 is a top view of the second spray assembly of the spray device provided in some embodiments of the present disclosure.
[0030] Figure 6 It is a schematic diagram of the structure of the diesel testing equipment provided in some embodiments of the present disclosure.
[0031] Figure 7 It is a schematic diagram of the structure of diesel testing equipment provided in other embodiments of the present disclosure.
[0032] Description of Reference Numerals
[0033] 10-spraying device; 100-tube body; 100a-first end; 100b-second end; 101-first water outlet; 102-second water outlet; 103-first mounting portion; 104-threaded connection portion; 105-water inlet;
[0034] 200-first spray assembly; 210-first spray element; 211-spray body; 212-blade; 220-bearing;
[0035] 300-second spray assembly; 310-conical cylinder; 311-flow guide hole;
[0036] 20 - combustion device; 30 - exhaust device; 31 - exhaust pipe; 40 - cooling device; 41 - cooling water pipe. DETAILED DESCRIPTION
[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0038] In the present disclosure, unless otherwise specified, directional words such as "up, down, left, right" generally refer to up, down, left, right relative to the accompanying drawings; "inside and outside" refer to the inside and outside of the outline of the corresponding component; "far and near" refer to the corresponding structure or the corresponding component being far away from or close to another structure or component. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.
[0039] Diesel is a mixture of complex hydrocarbons (with carbon atoms of about 10 to 22) derived from petroleum, mainly made from diesel fractions produced by crude oil distillation, catalytic cracking, thermal cracking, hydrocracking, petroleum coking, etc. As an engine fuel, diesel is widely used in large vehicles, ships, generators and other machinery.
[0040] Cetane number is the most important indicator of automotive diesel, which is used to indicate the ignition performance of diesel. Diesel engines of different speeds have different requirements for the cetane number of diesel. The cetane number of fuel for high-speed diesel engines should be 40-60, and generally use fuel with a cetane number of 40-45; medium-speed diesel engines can use fuel with a cetane number of 30-35; for low-speed diesel engines, even if they use fuel with a cetane number lower than 25, their combustion will not cause any special difficulties.
[0041] Similar to the octane number of gasoline, the cetane number of diesel is also measured in a standard test single-cylinder diesel engine under specified operating conditions. The corresponding test method is GB / T 386-2021. The standard fuels used are n-hexadecane and heptamethylnonane. The cetane number of n-hexadecane is specified to be 100. The cetane number of heptamethylnonane is specified to be 15. By blending these two compounds in different proportions, various standard fuels with different cetane numbers can be prepared. The cetane number of the standard fuel is calculated as follows:
[0042] Cetane number = 100φ 正十六烷 +15φ 七甲基壬烷
[0043] In the related art, the test equipment used to test the cetane number includes a combustion device (usually a single-cylinder compression ignition engine), an exhaust device and a cooling device. The exhaust device includes an exhaust pipe connected to the exhaust port of the combustion device. During the entire test process, there is a process of incomplete combustion of the fuel, which produces a large amount of harmful substances. The cooling water is introduced into the exhaust pipe through the cooling water pipe of the cooling device to cool and absorb the exhaust gas before being discharged into the atmosphere. The cooling water of the cooling device has a poor effect on cooling the exhaust gas and absorbing harmful substances. At the same time, the cooling water is easy to gather near the exhaust pipe. After the test equipment is shut down, the cooling water is sucked back into the combustion chamber due to the negative pressure state in the combustion chamber, causing damage to the equipment and injury to the tester.
[0044] The purpose of the present invention is to provide a spray device and diesel testing equipment. The spray device has a simple structure and is easy to manufacture and install. It can improve the problems of poor cooling and absorption of cooling water and easy backflow, improve cooling and absorption efficiency, and reduce safety hazards.
[0045] In order to achieve the above purpose, Figures 1 to 7 As shown, an embodiment of the present disclosure provides a spray device 10 for diesel testing equipment, and the spray device 10 includes a pipe body 100, a first spray assembly 200, and a second spray assembly 300. The pipe body 100 includes a first end 100a and a second end 100b, and a first water outlet 101 and a second water outlet 102 disposed on the side wall of the pipe body 100 between the first end 100a and the second end 100b, a first mounting portion 103 is formed between the first water outlet 101 and the second water outlet 102, and the first end 100a is used to connect to the cooling water pipe 41; the first spray assembly 200 is disposed at the first mounting portion 103, and is used to disperse the water discharged from the first water outlet 101; the second spray assembly 300 is disposed at the second end 100b of the pipe body 100, and is used to disperse the water discharged from the second water outlet 102.
[0046] Through the above technical scheme, that is, the spray device 10 of the present invention, cooling water is introduced by connecting the first end 100a of the tube body 100 to the cooling water pipe 41, and the first spray assembly 200 is installed on the first installation part 103 of the tube body 100, and the second spray assembly 300 is set at the second end 100b of the tube body 100, so that the cooling water flowing out of the first water outlet 101 can be broken up and refined by the first spray assembly 200, and the cooling water flowing out of the second water outlet 102 can be broken up and refined by the second spray assembly 300. On the one hand, the broken up and refined cooling water can better cool the gas in the drain pipe of the diesel testing equipment and absorb harmful substances in the gas, thereby improving the cleanliness of the exhaust gas; on the other hand, since the cooling water entering the exhaust pipe 31 is broken up and refined, it can be discharged together with the gas, thereby avoiding the back suction of cooling water and improving the safety performance of use. Through the above arrangement, the spray device 10 disclosed in the present invention has a simple structure and is easy to manufacture and install. It can improve the problem of poor cooling and absorption effect of cooling water and easy back-absorption, improve cooling absorption efficiency and reduce safety hazards.
[0047] In some embodiments, the first end 100a of the tube body 100 is formed with a water inlet 105, and the first end 100a is circumferentially formed with a threaded connection portion 104 for connecting with the cooling water pipe 41. The threaded connection portion is used for detachable connection with the cooling water pipe 41, and when the two are connected, cooling water can enter the interior of the tube body 100 through the water inlet 105.
[0048] The first spray assembly 200 can be constructed using any suitable structure, such as Figure 4 and Figure 5 As shown, in some embodiments of the present disclosure, the first spray assembly 200 includes a first spray member 210 and a bearing 220; the first spray member 210 includes a spray body 211 and a plurality of blades 212 arranged circumferentially of the spray body 211, and the spray body 211 is rotatably sleeved on the first mounting portion 103 through the bearing 220. Among them, the first mounting portion 103 can be constructed as an annular mounting boss arranged in the middle of the tube body 100 and between the first water outlet 101 and the second water outlet 102, the inner ring of the bearing 220 can be fixedly connected to the annular mounting boss, the spray body 211 can be connected to the outer ring of the bearing 220, and the plurality of blades 212 can be arranged at intervals along the circumference of the spray body 211 to form a fan-like structure. When in use, the exhaust gas of the combustion device 20 drives the first spray part 210 of the first spray assembly 200 to rotate, and the sprayed cooling water is spread over a larger range. In this process, the spray water is in more complete contact with the exhaust gas of the combustion device 20 (such as the engine), absorbing the soluble harmful substances therein, while reducing the exhaust gas temperature, improving the spraying effect, and preventing a large amount of cooling water from accumulating in the exhaust pipe 31, thereby reducing the risk of residual cooling water being sucked back into the engine during shutdown.
[0049] In addition, the cooling water discharged from the first water outlet 101 can fall on the multiple blades 212, and the cooling water is dispersed by the multiple blades 212 and discharged in a circumferential direction. At the same time, the cooling water can also push the multiple blades 212 to rotate, thereby further dispersing the cooling water.
[0050] It should be noted that there are at least three blades 212, which are evenly distributed around the circumference of the spray body 211 to disperse the cooling water more evenly. In some embodiments, there may be four blades 212, which are centrally symmetrically distributed around the circumference of the spray body 211 to better disperse the cooling water.
[0051] Similarly, the second spray assembly 300 may also be constructed using any suitable structure, such as Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the second spray assembly 300 may include a conical cylinder 310 having a plurality of guide holes 311, and the conical cylinder 310 is open in a direction away from the tube body 100. The first spray assembly 200 may be a conical cylinder 310 disposed at the second end 100b of the tube body 100, and the area of the conical cylinder 310 gradually increases in a direction away from the tube body 100, and a plurality of guide holes 311 are formed on the conical cylinder 310, and the cooling water discharged from the second water outlet 102 may fall on the conical cylinder 310, and the cooling water is spread to a larger area through the plurality of guide holes 311 to form a spray effect, and the cooling water is more fully contacted with the exhaust gas in this process, absorbing the soluble harmful substances therein, while reducing the exhaust gas temperature, improving the spray effect, and preventing a large amount of cooling water from accumulating in the exhaust pipe 31, reducing the risk of the remaining cooling water being sucked back into the engine when the engine is shut down.
[0052] It should be noted that if Figure 6 As shown, in actual use, the tube body 100 can be inserted into the exhaust pipe 31 of the diesel debugging equipment in the vertical direction, and the first spray assembly 200 and the second spray assembly 300 are also both inside the exhaust pipe 31, the first water outlet 101 of the tube body 100 is above the first spray assembly 200, and the second water outlet 102 is above the second spray assembly 300. After the cooling water is discharged from the first water outlet 101 and the second water outlet 102, under the action of gravity, it falls downward on the multiple blades 212 and the conical cylinder 310, thereby completing the dispersion.
[0053] It should be noted that if Figure 7As shown, the tube body 100 can also be inserted into the exhaust pipe 31 of the diesel debugging equipment in the horizontal direction, and the first spray assembly 200 and the second spray assembly 300 are also both inside the exhaust pipe 31, the first water outlet 101 of the tube body 100 is in front of the first spray assembly 200, and the second water outlet 102 is in front of the second spray assembly 300. After the cooling water is discharged from the first water outlet 101 and the second water outlet 102, it falls downward on the multiple blades 212 and the conical cylinder 310 under the blowing of the exhaust gas, thereby completing the dispersion.
[0054] Among them, the conical cylinder 310 includes a first end 100a surface with a smaller diameter and a second end 100b surface with a larger diameter. The first end 100a surface can be fixedly connected to the second end 100b of the tube body 100 by, for example, threading, and the second end 100b extends in a direction away from the tube body 100 to form an open structure.
[0055] In some embodiments, the plurality of guide holes 311 may be evenly distributed along the circumference of the conical cylinder 310 to more evenly distribute the cooling water. Similarly, the plurality of guide holes 311 may also be arranged at intervals along the radial direction of the conical cylinder 310, so that the plurality of guide holes 311 are arranged on the conical cylinder 310 to achieve a spraying effect.
[0056] The guide hole 311 can be constructed as a hexagonal hole, a circular hole, a triangular hole or a hole of other shapes, such as a waist-shaped hole, etc. Among them, the hexagonal shape can prevent the cooling water from blocking the guide hole 311 due to the surface tension of the water and affecting the spraying effect, thereby improving the passing capacity of the cooling water.
[0057] In order to achieve a more reasonable spraying effect of cooling water, in some embodiments, the ratio of the projected area of the plurality of guide holes 311 in the first plane to the projected area of the conical cylinder 310 in the first plane is 0.5-0.8; wherein the first plane is a plane perpendicular to the extension direction of the tube body 100. The first plane is a horizontal plane when the spray device 10 is actually used.
[0058] A plurality of guide holes 311 are arranged on the conical cylinder 310, so that the conical cylinder 310 forms a hollow structure, and the spraying effect is ensured by further limiting the area ratio of the guide holes 311 to the area of the entire conical cylinder 310. The present disclosure limits the circulation area of the cooling water by limiting the ratio of the projected area of the guide holes 311 to the conical cylinder 310 in the first plane, thereby achieving the effect of scattered spraying. Practical verification shows that the ratio of the projected area of the plurality of guide holes 311 in the first plane to the projected area of the conical cylinder 310 in the first plane can be 0.5, 0.6, 0.7 and 0.8, and the effect of scattered cooling water is better.
[0059] In some embodiments, the projection area of the first spray assembly 200 in the first plane is smaller than the projection area of the second spray assembly 300 in the first plane. Because in actual use, the first water outlet 101 and the first spray assembly 200 are above the second water outlet 102 and the second spray assembly 300, therefore, the projection area of the first spray assembly 200 in the first plane is set to be smaller than the projection area of the second spray assembly 300 in the first plane, so that part of the cooling water that cannot be dispersed by the first spray assembly 200 can fall down into the second spray assembly 300 for dispersion.
[0060] Optionally, the ratio of the projected area of the first spray assembly 200 in the first plane to the projected area of the second spray assembly 300 in the first plane is 0.45-0.75. The ratio may be 0.45, 0.5, 0.6, 0.7 or 0.75, which may be selected according to the size of the exhaust pipe 31 and actual conditions, so as to better receive the cooling water falling into the first spray assembly 200 and the cooling water discharged from the second water outlet 102.
[0061] In some embodiments of the present disclosure, the first water outlet 101 and / or the second water outlet 102 are both multiple and are arranged at intervals along the circumference of the tube body 100. The cooling water entering through the water inlet 105 of the first end 100a of the tube body 100 can be discharged through the first water outlet 101 and the second water outlet 102 connected to the internal flow channel of the tube body 100. Therefore, the first water outlet 101 and the second water outlet 102 can be arranged at intervals along the circumference of the tube body 100, so that the cooling water can be more evenly distributed on the first spray assembly 200 and the second spray assembly 300, and then scattered by the rotation of the first spray part 210 of the first spray assembly 200, and scattered by the conical cylinder 310 with multiple guide holes 311 of the second spray assembly 300.
[0062] It can be understood that the first end 100a of the tube body 100 has an opening, that is, a water inlet 105 is formed and is connected to the internal flow channel of the tube body 100, and the second end 100b of the tube body 100 can be sealed and is only used to install the second spray assembly 300. Therefore, the cooling water entering the interior of the tube body 100 through the water inlet 105 can be discharged from the first water outlet 101 and the second water outlet 102.
[0063] like Figure 6 and Figure 7As shown, the embodiment of the present disclosure further provides a diesel testing device, which includes a combustion device 20, an exhaust device 30 and a spray device 10 provided in the above embodiment of the present disclosure; wherein the exhaust device 30 includes an exhaust pipe 31 connected to the exhaust port of the combustion device 20, at least part of the pipe body 100, the first spray assembly 200 and the second spray assembly 300 of the spray device 10 are arranged in the exhaust pipe 31, and the first end 100a of the pipe body 100 is connected to the cooling water pipe 41. Therefore, the diesel testing device also has all the advantages of the above spray device 10, which will not be repeated here.
[0064] The diesel testing equipment is used for diesel cetane number determination, and may include a combustion device 20, an exhaust device 30, a cooling device 40 and a spray device 10. The combustion device 20 may be an engine for diesel combustion. The exhaust device 30 includes an exhaust pipe 31, one end of which is connected to the exhaust port of the engine, and the other end is connected to the atmosphere. The cooling device 40 includes a cooling water pipe 41. The second end 100b of the pipe body 100 of the spray device 10 is inserted into the exhaust pipe 31, and the first water outlet 101 and the second water outlet 102 are both located inside the exhaust pipe 31. The cooling water discharged from the first water outlet 101 and the second water outlet 102 can be dispersed through the first spray assembly 200 and the second spray assembly 300. The dispersed cooling water (fine or atomized cooling water) can be more fully contacted with the exhaust gas of the exhaust pipe 31, and can be at least partially discharged together with the exhaust gas, thereby avoiding the back suction of cooling water and improving the safety performance of use. Through the above arrangement, the spray device 10 disclosed in the present invention has a simple structure and is easy to manufacture and install. It can improve the problem of poor cooling and absorption effect of cooling water and easy back-absorption, improve cooling absorption efficiency and reduce safety hazards.
[0065] In actual use, the tube body 100 can be inserted into the exhaust pipe 31 of the diesel debugging equipment in a vertical direction or a horizontal direction, and the first spray assembly 200 and the second spray assembly 300 are also both located inside the exhaust pipe 31. When the tube body 100 is arranged in a vertical direction, the first water outlet 101 of the tube body 100 is located above the first spray assembly 200, and the second water outlet 102 is located above the second spray assembly 300. After the cooling water is discharged from the first water outlet 101 and the second water outlet 102, under the action of gravity, the cooling water falls downward onto the multiple blades 212 and the conical cylinder 310, respectively, thereby completing the dispersion. When the pipe body 100 is arranged in the horizontal direction, the first water outlet 101 of the pipe body 100 is located in front of the first spray assembly 200, and the second water outlet 102 is located in front of the second spray assembly 300. After the cooling water is discharged from the first water outlet 101 and the second water outlet 102, it falls downward on the multiple blades 212 and the conical cylinder 310 respectively under the blowing of the exhaust gas, thereby completing the dispersion.
[0066] The spray device 10 and diesel testing equipment disclosed in the present invention are applied to diesel testing equipment for diesel cetane number determination, and can improve the spraying effect and prevent the cooling water from being sucked back in the exhaust pipe 31. The first spray assembly 200 of the upper layer can be rotated to disperse the cooling water, and the second spray device 10 of the lower layer disperses the cooling water through the conical cylinder 310 with the guide hole 311. The spray device 10 has a simple structure, is easy to manufacture and install, improves the current problems of low spray efficiency and easy back suction of cooling water in the cetane number machine, improves the spraying efficiency, improves the exhaust gas purification effect, reduces safety hazards, and protects the personal safety of the experimenters.
[0067] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0068] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0069] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A spray device for diesel testing equipment, characterized in that: include: A tube body, comprising a first end and a second end, and a first water outlet and a second water outlet provided on a side wall of the tube body between the first end and the second end, a first mounting portion being formed between the first water outlet and the second water outlet, and the first end being used to be connected to a cooling water pipe; A first spray assembly, disposed on the first mounting portion, for dispersing water discharged from the first water outlet; and The second spray assembly is arranged at the second end of the tube body and is used for dispersing the water discharged from the second water outlet.
2. The spray device according to claim 1, characterized in that: The first spray assembly includes a first spray member and a bearing; The first spray component includes a spray body and a plurality of blades arranged in the circumference of the spray body. The spray body is rotatably sleeved on the first mounting portion through the bearing.
3. The spray device according to claim 1, characterized in that: The second spray assembly comprises a conical cylinder having a plurality of flow guide holes, and the conical cylinder is open in a direction away from the tube body.
4. The spray device according to claim 3, characterized in that: The plurality of guide holes are evenly distributed along the circumference of the conical cylinder; and / or The guide hole is constructed as a hexagonal hole.
5. The spray device according to claim 3, characterized in that: The ratio of the projected area of the plurality of guide holes in the first plane to the projected area of the conical cylinder in the first plane is 0.5-0.8; Wherein, the first plane is a plane perpendicular to the extending direction of the tube body.
6. The spray device according to claim 1, characterized in that: A projected area of the first spray component in the first plane is smaller than a projected area of the second spray component in the first plane.
7. The spray device according to claim 6, characterized in that: The ratio of the projected area of the first spray component in the first plane to the projected area of the second spray component in the first plane is 0.45-0.
75.
8. The spray device according to any one of claims 1 to 7, characterized in that: The first water outlet and / or the second water outlet are both multiple and are arranged at intervals along the circumference of the tube body.
9. The spray device according to any one of claims 1 to 7, characterized in that: A water inlet is formed at the first end of the pipe body, and a threaded connection portion for connecting with the cooling water pipe is formed in the circumference of the first end.
10. A diesel testing device, characterized in that: It comprises a combustion device, an exhaust device and a spray device as claimed in any one of claims 1 to 9; The exhaust device comprises an exhaust pipe connected to the exhaust port of the combustion device, at least part of the pipe body of the spray device, the first spray assembly and the second spray assembly are arranged on the exhaust pipe, and the first end of the pipe body is connected to the cooling water pipe.