Active regeneration temperature control test device of particle catcher

Abstract

The invention relates to the technical field of particle catcher regeneration test, and discloses an active regeneration temperature control test device for a particle catcher, comprising: a storage tank in which a gas storage area is formed; the two gas tanks are arranged on the surface of the storage tank, and one gas tank is communicated with the carbon dioxide storage equipment; the gas conveying assembly is arranged on the storage tank, communicates with the gas tank and is used for conveying gas with different oxygen contents into the storage tank; and the temperature adjusting assembly is arranged on the surface of the other side of the storage tank, the gas in the storage tank is heated by the temperature adjusting assembly, and the temperature adjusting assembly can adjust the temperature of the gas. The active regeneration temperature control test device of the particle catcher aims to solve the problem that the experiment process is long due to the fact that the oxygen content and the temperature serve as main influence variables, and specific data cannot be rapidly and effectively obtained in the experiment process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of particle trap regeneration test, in particular to an active regeneration temperature control test device for a particle trap. BACKGROUND

[0002] During the operation of the engine, a large amount of particulate matter (such as soot, dust, etc.) will be carried by the exhaust gas. If these particulate matters are directly discharged into the atmosphere, it will exacerbate air pollution and endanger human health. To solve this problem, the particle trap, as a key environmental protection component, is widely used. Its core function is to physically intercept and adsorb particulate matter in the exhaust gas through its internal porous structure, thereby significantly reducing particulate matter emissions to meet increasingly stringent environmental regulations. However, as the use time increases, particulate matter will gradually accumulate inside the particle trap, resulting in a reduction in the flow cross-section and an increase in exhaust resistance. This not only reduces the thermal efficiency of the engine and increases fuel consumption, but also indirectly increases exhaust emissions due to increased engine load. Therefore, the regeneration technology of the particle trap is a key link to maintain its long-term effective operation.

[0003] The regeneration effect of the particle trap is influenced by the synergistic effect of two key variables, oxygen content and temperature. However, it is difficult to independently and accurately control these two variables during the experiment. For example, increasing the intake air volume can increase the oxygen content, but it may affect heat retention due to changes in airflow velocity, resulting in temperature fluctuations. Delaying ignition can increase temperature, but it may indirectly change the oxygen consumption rate in the gas due to changes in combustion efficiency, making it difficult to stably control the oxygen content. This coupling relationship between variables requires a large number of combination tests to exclude interference factors and obtain effective data. In addition, existing experimental methods lack efficient parallel testing capabilities, and usually require adjusting parameters one by one and repeating experiments, resulting in a long experimental period. SUMMARY

[0004] The purpose of the present application is to solve the problem that the oxygen content and temperature, as the main influencing variables, cannot quickly and effectively obtain specific data during the experiment, resulting in a long experimental process. Therefore, an active regeneration temperature control test device for a particle trap is proposed.

[0005] The technical solution of the present application to solve the above technical problems is as follows: An active regeneration temperature control test device for a particle trap, comprising: a storage tank, forming a gas storage area inside; a gas tank, two in number, arranged on the surface of the storage tank, one of which is in communication with a carbon dioxide storage device; a gas delivery assembly arranged on the storage tank and in communication with the gas tank, for delivering gas with different oxygen contents into the storage tank; A temperature adjusting component is arranged on the other side surface of the storage tank, the gas in the storage tank is heated by the temperature adjusting component, and the temperature adjusting component can adjust the temperature of the gas; A sample tank is arranged on the temperature adjusting component and internally places a particle trap, the heated gas is delivered into the sample tank to perform an active regeneration temperature control test of the particle trap, the trapped particles are combusted by controlling the oxygen content and the temperature of the entering gas, and different concentration or temperature conditions are synchronously tested to determine the oxygen content and the temperature range required for the particle trap to achieve the best active regeneration effect.

[0006] On the basis of the above technical solutions, the application can also be improved as follows.

[0007] Furthermore, the gas tank comprises: An outer cylinder is fixedly connected to the surface of the storage tank by a support, wherein the outer wall of the outer cylinder is communicated with intake one-way valves, the intake end of one of the intake one-way valves is communicated with the carbon dioxide storage device through an intake pipe, and the intake end of the other intake one-way valve is exposed to introduce natural gas; An exhaust one-way valve is communicated with the surface of the outer cylinder, and the exhaust one-way valve is communicated with the gas storage area of the storage tank through an exhaust pipe; An intake adjusting control member is arranged on the outer cylinder and is used to adjust and control the oxygen content of the natural gas and the carbon dioxide entering the storage tank.

[0008] Furthermore, the intake adjusting control member comprises: A barrier cylinder is threadedly connected to the end of the outer cylinder, one end of the barrier cylinder is located inside the outer cylinder, and the other end of the barrier cylinder is located outside the outer cylinder, and the position of the barrier cylinder in the outer cylinder can be adjusted by threadedly connecting; A telescopic rod is sleeved inside the barrier cylinder and can slide and displace along the inner wall of the barrier cylinder, a fixed end of the telescopic rod is connected with a piston piece located inside the outer cylinder and abutting against the inner wall of the outer cylinder, and a telescopic end of the telescopic rod is connected with a connecting head through a spherical universal joint.

[0009] Furthermore, the gas delivery assembly comprises: A driving motor is fixedly installed on the surface of the storage tank through a mounting seat; A crankshaft is fixedly installed on the output end of the driving motor, both connecting heads are sleeved on the outer side of the crankshaft, and the driving motor drives the crankshaft to rotate to drive the piston piece to displace in the outer cylinder through the connecting heads; A connecting shaft is fixedly connected with the other end of the crankshaft, the other end of the connecting shaft penetrates through the entire storage tank, and the connecting shaft can be axially rotated at the center of the storage tank; A mixing blade is fixedly installed on the outer side of the connecting shaft and located in the gas storage area of the storage tank, and is used to mix the entering natural gas and carbon dioxide.

[0010] Further, the temperature adjusting assembly comprises: A heat insulation cylinder is fixedly installed on the other side surface of the storage tank, and nitrogen is introduced into the heat insulation cylinder; An electric heating wire is fixedly installed on the inner side of the heat insulation cylinder, and is used to heat the nitrogen in the heat insulation cylinder; A plurality of heat output pipes are in communication with the outer wall of the heat insulation cylinder and are distributed at equal intervals in a ring shape; A heating tank is fixedly installed on the other side end of the heat output pipe and is in communication with the heat output pipe; A plurality of heat exchange pipes are arranged through the heating tank and are parallel to the axis direction of the heating tank; A partition plate is slidably connected to the inner side of the heating tank, and the other end of the heat exchange pipe penetrates through the entire partition plate, wherein the partition plate is used to divide the internal area of the heating tank into a heating temperature area and a normal temperature area, and the heat exchange pipe is located in the heating temperature area; A reflux pipe is arranged through the partition plate and is in communication with the heating temperature area at one end, and is arranged through the heating tank and is in communication with the heat insulation cylinder at the other end, wherein the nitrogen heated by the electric heating wire can be output to the heating temperature area through the heat output pipe, and finally flows into the heat insulation cylinder through the reflux pipe.

[0011] Further, an electric push rod is fixedly installed at the center of the heating tank, a mounting seat is fixedly installed between the moving end of the electric push rod and the partition plate, the reflux pipe comprises a high-temperature-resistant corrugated hose and a reflux connector, one end of the high-temperature-resistant corrugated hose penetrates and extends to the other side surface of the partition plate and is in communication with the heating temperature area, the other end of the high-temperature-resistant corrugated hose is in communication with the reflux connector, and the other end of the reflux connector is in communication with the heat insulation cylinder.

[0012] Further, a plurality of gas delivery covers are arranged on the outer wall of the storage tank, the number and distribution positions of the gas delivery covers are matched with the heating tank, the gas delivery end of the gas delivery cover is in communication with one side end of the plurality of heat exchange pipes, the other side end of the heating tank is fixedly installed with a gas outlet cover, the input end of the gas outlet cover is in communication with the normal temperature area of the heating tank, and an electromagnetic valve is arranged on the gas delivery cover.

[0013] Further, the output end of the gas delivery cover is connected with a sample tank through a flange, and an output pipe in communication with a processing device is arranged on the sample tank, wherein a gas component sensor is embedded in the output pipe.

[0014] Further, the connecting shaft penetrates and extends to the inner side of the heat insulation cylinder, the connecting shaft can be axially rotated at the center of the heat insulation cylinder, and a gas flow output blade is fixedly installed on the outer side of the connecting shaft and located in the inner side of the heat insulation cylinder.

[0015] Further, the heat insulation cylinder is also communicated with a pressure sensor and a temperature sensor for detecting the nitrogen in the heat insulation cylinder, the heat exchange pipe is a telescopic heat exchange pipe, and the heating tank is provided with a plurality of through holes near one end of the gas supply cover, wherein the gas supply cover and the normal temperature area of the heating tank are communicated through the through holes.

[0016] Compared with the prior art, the technical scheme has the following beneficial technical effects: The present application can accurately control the oxygen content of the gas entering the storage tank by the proportioning of different gases, realize independent regulation and control of the oxygen content, avoid the interference of coupling factors such as changes in heat retention or combustion efficiency due to changes in gas intake, and the temperature adjusting assembly is specially used for heating and adjusting the temperature of the gas in the storage tank, which can effectively control the gas temperature and break the coupling relationship between the oxygen content and the temperature, without a large number of meaningless combination tests to eliminate interference factors; in addition, the sample tank is set in combination with the above structure, which can deliver the gas with independently regulated oxygen content and temperature to the sample tank where the particle trap is placed, and can simultaneously test different concentrations (oxygen content) or temperature conditions, greatly shortening the experimental period, efficiently obtaining the oxygen content and temperature range required for the best active regeneration effect of the particle trap, and providing accurate data support for the effective regeneration of the particle trap. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall connecting structure of the present application; Figure 2 It is a schematic diagram of the overall connecting structure of the present application; Figure 1 It is an enlarged view of A in the present application; Figure 3 It is a schematic diagram of the internal connecting structure of the outer cylinder of the present application; Figure 4 It is a schematic diagram of the connecting structure of the telescopic rod and the piston of the present application; Figure 5 It is a schematic diagram of the internal connecting structure of the telescopic rod of the present application; Figure 6 It is a schematic diagram of the internal connecting structure of the heat insulation cylinder of the present application; Figure 7 It is a schematic diagram of the connecting structure of the heating tank and the return pipe of the present application; Figure 8 It is a schematic diagram of the connecting structure of the present application from another perspective; Figure 9 It is a schematic diagram of the connecting structure of the connecting shaft and the mixing blade of the present application.

[0018] In the figure: 1, storage tank; 2, gas tank; 21, outer cylinder; 22, gas inlet check valve; 23, gas inlet pipe; 24, gas outlet check valve; 25, gas outlet pipe; 26, gas inlet adjusting control component; 261, blocking cylinder; 262, telescopic rod; 263, piston piece; 264, spherical universal joint; 265, connecting head; 3, gas delivery assembly; 31, driving motor; 32, crankshaft; 33, connecting shaft; 34, mixing blade; 4, temperature adjusting assembly; 41, heat insulation cylinder; 42, electric heating wire; 43, heat output pipe; 44, heating tank; 45, heat exchange pipe; 46, partition plate; 47, return pipe; 471, high-temperature-resistant corrugated hose; 472, return connecting pipe; 5, sample tank; 6, electric push rod; 7, mounting seat; 8, gas delivery cover; 9, gas outlet cover; 10, electromagnetic valve; 11, flange; 12, output pipe; 13, gas component sensor; 14, gas flow output blade; 15, pressure sensor; 16, temperature sensor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] In combination Figures 1-9 As shown in the figure, the active regeneration temperature control test device of the particle trap comprises: The storage tank 1 has a gas storage area formed inside; The gas tank 2 is provided on the surface of the storage tank 1, and two of them are in communication with the carbon dioxide storage device; The gas delivery assembly 3 is provided on the storage tank 1 and in communication with the gas tank 2, and is used for delivering gas with different oxygen contents into the storage tank 1; The temperature adjusting assembly 4 is provided on the other side surface of the storage tank 1, the gas in the storage tank 1 is heated by the temperature adjusting assembly 4, and the temperature adjusting assembly 4 can adjust the temperature of the gas; The sample tank 5 is provided on the temperature adjusting assembly 4 and has a particle trap placed inside, the heated gas is delivered into the sample tank 5 to perform the active regeneration temperature control test of the particle trap, the captured particles are burned by controlling the oxygen content and the temperature of the entering gas, and different concentrations or temperature conditions are tested synchronously to determine the oxygen content and the temperature range required for the best active regeneration effect of the particle trap.

[0021] The gas storage area formed in the storage tank 1 is used for temporarily storing the required gas for the test; the two gas tanks 2 are arranged on the surface of the storage tank 1, one of which is in communication with the carbon dioxide storage device, and can cooperate to provide different components of the gas, and then the gas is delivered to the storage tank 1 in proportion through the gas delivery assembly 3, so as to obtain the gas with different oxygen contents, and realize independent regulation and control of the oxygen content of the gas; the temperature adjusting assembly 4 arranged on the other side surface of the storage tank 1 can heat the gas in the storage tank 1, and can change the temperature of the gas through the self-adjusting function, so as to realize independent regulation and control of the temperature of the gas; then, the heated gas with a specific oxygen content is delivered to the sample tank 5 in which the particulate trap is arranged, in the process, the oxygen content and the temperature of the gas entering the sample tank 5 are controlled, so that the particles captured by the particulate trap are combusted, and then the combustion of the particles under different oxygen content concentrations or temperature conditions is simultaneously tested, and finally the oxygen content and the temperature range required for the particulate trap to achieve the best active regeneration effect are determined.

[0022] In a preferred embodiment of the present application, the gas tank 2 can be further configured as shown in Figure 2 、 Figure 3 ; the gas tank 2 comprises: an outer cylinder 21 fixedly connected to the surface of the storage tank 1 through a support, wherein the outer wall of the outer cylinder 21 is communicated with an air inlet one-way valve 22, one air inlet one-way valve 22 is communicated with the carbon dioxide storage device through an air inlet pipe 23, and the other air inlet one-way valve 22 is exposed to introduce natural gas; an air outlet one-way valve 24 communicated with the surface of the outer cylinder 21, and the air outlet one-way valve 24 is communicated with the gas storage area of the storage tank 1 through an air outlet pipe 25; an air inlet adjusting and controlling member 26 arranged on the outer cylinder 21, which is used to regulate and control the oxygen content of the natural gas and the carbon dioxide entering the storage tank 1, the air inlet one-way valves 22 on the outer cylinder 21 introduce the carbon dioxide and the natural gas respectively, wherein the carbon dioxide is from the carbon dioxide storage device, and the gas backflow can be prevented; the air outlet one-way valve 24 delivers the gas in the outer cylinder 21 to the gas storage area of the storage tank 1, and the gas backflow can also be avoided; the air inlet adjusting and controlling member 26 realizes accurate control of the oxygen content of the gas in the storage tank 1 by regulating and controlling the entering amount of the natural gas and the carbon dioxide, and solves the problem that the oxygen content is difficult to be stably regulated and controlled in the existing experiment.

[0023] In a preferred embodiment of the present application, the air inlet adjusting and controlling member 26 can be further configured as shown in Figure 3 、 Figure 4 and Figure 5 ; the air inlet adjusting and controlling member 26 comprises: The barrier cylinder 261 is threadedly connected to the end of the outer cylinder 21, with one end located inside the outer cylinder 21 and the other end located outside the outer cylinder 21, so that the position of the barrier cylinder 261 in the outer cylinder 21 can be adjusted by threadedly connecting the barrier cylinder 261 to the outer cylinder 21; The telescopic rod 262 is sleeved on the inner side of the blocking barrel 261 and can slide and displace along the inner wall of the blocking barrel 261. The fixed end of the telescopic rod 262 is connected with the piston piece 263 located on the inner side of the outer cylinder 21 and abutting against the inner wall of the outer cylinder 21. The telescopic end of the telescopic rod 262 is connected with the connecting head 265 through the spherical universal joint 264. It should be noted that the outer wall of the blocking barrel 261 is provided with external threads, the end of the outer cylinder 21 is provided with a threaded hole, the blocking barrel 261 is connected in the threaded hole of the outer cylinder 21 through the external threads, and the outer wall of the blocking barrel 261 is also fixedly installed with a handle. The handle is rotated to drive the blocking barrel 261 to rotate. The position of the blocking barrel 261 at the end of the outer cylinder 21 is adjusted through the thread cooperation between the surface of the blocking barrel 261 and the threaded hole on the outer cylinder 21, and the stroke range of the piston piece 263 is limited. When the blocking barrel 261 is located at the end of the outer side of the outer cylinder 21 and is closer to the threaded hole, the stroke of the piston piece 263 is smaller, so that the amount of gas conveyed each time is smaller. Conversely, when the blocking barrel 261 is located at the end of the outer side of the outer cylinder 21 and is away from the threaded hole, the stroke of the piston piece 263 is larger, so that the amount of gas conveyed each time is larger. According to the needs of the carbon dioxide concentration, the two piston pieces 263 are adjusted in different stroke limits. It should be noted that the telescopic rod 262 is composed of an outer tube and an inner tube. The outer tube is sleeved on the inner side of the blocking barrel 261 and is slidingly connected to the inner side of the inner tube. One end of the outer tube is connected with the spherical universal joint 264, and the other end of the outer tube and the inner wall of the inner tube are fixedly installed with a spring. The end of the outer tube away from the inner tube is fixedly installed with the piston piece 263. Rotating the blocking barrel 261 can change its position in the outer cylinder 21, thereby limiting the stroke of the piston piece 263. The telescopic rod 262 can slide along the blocking barrel 261, and the spherical universal joint 264 and the connecting head 265 ensure the stable movement of the piston piece 263. By adjusting the two piston pieces 263 in different stroke limits, the conveying ratio of natural gas and carbon dioxide can be accurately controlled, so that the oxygen content of the gas entering the storage tank 1 can be accurately controlled, the stability of the oxygen content in the experiment can be avoided due to improper gas ratio, and the movement interference of the piston piece 263 can be avoided by setting the telescopic rod 262. The core reason lies in that the multi-dimensional motion compensation mechanism is formed through the cooperative design of the spherical universal joint 264. When the connecting head 265 is driven to do circular motion by the driving assembly, the spherical universal joint 264 can realize 360° rotation and multi-angle swing. When the circular motion of the crankshaft 32 is converted into the linear reciprocating motion of the piston piece 263, the torque interference caused by the radial force can be eliminated through angle self-adaption. At the same time, the telescopic rod 262 can freely slide along the inner wall of the blocking barrel 261. When the piston piece 263 does reciprocating motion in the outer cylinder 21, the axial displacement of the piston piece 263 can be compensated through the telescopic rod 262, so that the motion track conflict under the rigid connection is avoided.The telescopic rod 262 adopts a combined structure of an outer tube, an inner tube and a spring, is designed based on the dual requirements of accurate quantity control and motion stability: the nested sliding structure of the outer tube and the inner tube can automatically adjust the overall length according to the stroke of the piston piece 263, when the barrier cylinder 261 adjustment causes the stroke of the piston piece 263 to change, the relative sliding of the inner and outer tubes can adapt to different displacement amounts in real time, to ensure the adjustment accuracy of the gas delivery amount; the elastic force of the built-in spring always acts between the outer tube and the inner tube, so that the telescopic rod 262 can ensure a certain length without force.

[0024] The application can be further configured as shown in Figure 1 、 Figure 2 and Figure 9 in a preferred embodiment; the gas delivery assembly 3 comprises: a driving motor 31 fixedly installed on the surface of the storage tank 1 through a mounting seat; a crankshaft 32 fixedly installed on the output end of the driving motor 31, both of the connecting heads 265 are sleeved on the outer side of the crankshaft 32, the driving motor 31 drives the crankshaft 32 to rotate to drive the piston piece 263 to displace in the outer cylinder 21 through the connecting head 265; a connecting shaft 33, one end of which is fixedly connected with the other end of the crankshaft 32, the other end of the connecting shaft 33 penetrates through the entire storage tank 1, and the connecting shaft 33 can rotate axially at the center of the storage tank 1; a mixing blade 34 fixedly installed on the outer side of the connecting shaft 33 and located in the gas storage area of the storage tank 1, which is used to mix the entered natural gas and carbon dioxide, the driving motor 31 drives the crankshaft 32 to rotate to drive the piston piece 263 to reciprocatingly displace in the outer cylinder 21 through the connecting head 265, to realize the continuous delivery of the gas; the connecting shaft 33 rotates with the crankshaft 32 to drive the mixing blade 34 to rotate in the gas storage area of the storage tank 1, so that the entered natural gas and carbon dioxide are fully mixed, to ensure that the oxygen content of the gas in the storage tank 1 is uniform, and to reduce the experimental error caused by uneven gas mixing.

[0025] The application can be further configured as shown in Figure 1 、 Figure 6 in a preferred embodiment; the temperature adjusting assembly 4 comprises: a heat insulation cylinder 41 fixedly installed on the other side surface of the storage tank 1, nitrogen gas is introduced into the heat insulation cylinder 41; an electric heating wire 42 fixedly installed on the inner side of the heat insulation cylinder 41, which is used to heat the nitrogen gas in the heat insulation cylinder 41; a heat output pipe 43 communicated on the outer wall of the heat insulation cylinder 41, the number of the heat output pipes 43 is several and they are distributed equidistantly in a ring shape; a heating tank 44 fixedly installed on the other side end of the heat output pipe 43 and communicated with the heat output pipe 43; Heat exchange pipe 45, which is arranged through the heating tank 44, is arranged in multiple and parallel to the axial direction of the heating tank 44; The baffle plate 46 is slidably connected to the inner side of the heating tank 44, and the other end of the heat exchange pipe 45 penetrates the entire baffle plate 46, wherein the baffle plate 46 is used to divide the internal area of the heating tank 44 into a heating temperature area and a normal temperature area, and the heat exchange pipe 45 is located in the heating temperature area; The return pipe 47, one end of which penetrates the baffle plate 46 and communicates with the heating temperature area, the other end of which penetrates the heating tank 44 and communicates with the heat insulation cylinder 41, wherein the nitrogen heated by the electric heating wire 42 can be output to the heating temperature area through the heat output pipe 43, and finally flow into the heat insulation cylinder 41 through the return pipe 47, the electric heating wire 42 in the heat insulation cylinder 41 heats the nitrogen, and the heated nitrogen enters the heating temperature area of the heating tank 44 through the heat output pipe 43; the gas in the heat exchange pipe 45 exchanges heat with the nitrogen in the heating temperature area; the baffle plate 46 can change the size of the heating temperature area by sliding, when the baffle plate 46 is far away from the heat output pipe 43, the volume of the heating temperature area is large, the contact time of the heat exchange pipe 45 with the nitrogen is long, the gas absorbs more heat, the outlet temperature is high, and vice versa; the nitrogen flows back to the heat insulation cylinder 41 through the return pipe 47 for recycling. By this way, the gas temperature can be independently controlled, and the problem of temperature and oxygen content coupling difficult to control is solved.

[0026] In a preferred embodiment of the present application, it can be further configured as shown in Figure 6 , Figure 7 The axial center of the heating tank 44 is fixedly installed with an electric push rod 6, the moving end of the electric push rod 6 is fixedly installed with a mounting seat 7 between the baffle plate 46, the return pipe 47 includes a high-temperature-resistant corrugated hose 471 and a return connector 472, one end of the high-temperature-resistant corrugated hose 471 penetrates and extends to the other side surface of the baffle plate 46 and communicates with the heating temperature area, the other end of the high-temperature-resistant corrugated hose 471 is communicated with the return connector 472, the other end of the return connector 472 penetrates the heating tank 44 and communicates with the heat insulation cylinder 41, the electric push rod 6 drives the baffle plate 46 to slide in the heating tank 44 through the mounting seat 7, and the space size of the heating temperature area is conveniently adjusted; the high-temperature-resistant corrugated hose 471 in the return pipe 47 can stretch and shrink with the movement of the baffle plate 46, and cooperates with the return connector 472 to ensure that the nitrogen can smoothly flow back to the heat insulation cylinder 41, so that the temperature adjustment process is more stable, and the accuracy of temperature control is further improved, so as to meet the demand of precise temperature control in the experiment.

[0027] In a preferred embodiment of the present application, it can be further configured as shown in Figure 1 , Figure 6As shown in the figure, the outer wall of the storage tank 1 is communicated with a plurality of gas delivery covers 8, the number and distribution position of the gas delivery covers 8 are matched with the heating tank 44 one by one, the gas delivery end of the gas delivery cover 8 is communicated with one side end of a plurality of heat exchange pipes 45, the other side end of the heating tank 44 is fixedly installed with a gas outlet cover 9, the input end of the gas outlet cover 9 is communicated with the normal temperature area of the heating tank 44, and the electromagnetic valve 10 is further arranged on the gas delivery cover 8; the gas in the storage tank 1 enters the heat exchange pipe 45 through the gas delivery cover 8, and the electromagnetic valve 10 can control the delivery amount of the gas; after the gas completes heat exchange in the heat exchange pipe 45, the gas enters the normal temperature area of the heating tank 44, and then is delivered to the sample tank 5 through the gas outlet cover 9; the plurality of gas delivery covers 8 are matched with the heating tank 44 one by one, and the test of a plurality of particle traps can be simultaneously performed.

[0028] As shown in the figure, the outer wall of the storage tank 1 is communicated with a plurality of gas delivery covers 8, the number and distribution position of the gas delivery covers 8 are matched with the heating tank 44 one by one, the gas delivery end of the gas delivery cover 8 is communicated with one side end of a plurality of heat exchange pipes 45, the other side end of the heating tank 44 is fixedly installed with a gas outlet cover 9, the input end of the gas outlet cover 9 is communicated with the normal temperature area of the heating tank 44, and the electromagnetic valve 10 is further arranged on the gas delivery cover 8; the gas in the storage tank 1 enters the heat exchange pipe 45 through the gas delivery cover 8, and the electromagnetic valve 10 can control the delivery amount of the gas; after the gas completes heat exchange in the heat exchange pipe 45, the gas enters the normal temperature area of the heating tank 44, and then is delivered to the sample tank 5 through the gas outlet cover 9; the plurality of gas delivery covers 8 are matched with the heating tank 44 one by one, and the test of a plurality of particle traps can be simultaneously performed. Figure 1 、 Figure 6 As shown in the figure, the output end of the gas delivery cover 8 is connected with the sample tank 5 through the flange 11, and the output pipe 12 communicated with the processing equipment is further communicated with the sample tank 5, wherein the gas component sensor 13 is embedded in the output pipe 12, the gas output by the gas delivery cover 8 enters the sample tank 5 and reacts with the particles in the internal particle trap; the output pipe 12 of the sample tank 5 delivers the reacted gas to the processing equipment, and the gas component sensor 13 embedded in the output pipe 12 can detect the gas component, and through the analysis of the gas component, the combustion condition of the particles can be understood, and data support for determining the oxygen content and temperature range required for the best active regeneration effect of the particle trap is provided.

[0029] As shown in the figure, the output end of the gas delivery cover 8 is connected with the sample tank 5 through the flange 11, and the output pipe 12 communicated with the processing equipment is further communicated with the sample tank 5, wherein the gas component sensor 13 is embedded in the output pipe 12, the gas output by the gas delivery cover 8 enters the sample tank 5 and reacts with the particles in the internal particle trap; the output pipe 12 of the sample tank 5 delivers the reacted gas to the processing equipment, and the gas component sensor 13 embedded in the output pipe 12 can detect the gas component, and through the analysis of the gas component, the combustion condition of the particles can be understood, and data support for determining the oxygen content and temperature range required for the best active regeneration effect of the particle trap is provided. Figure 6 、 Figure 7 As shown in the figure, the connecting shaft 33 penetrates and extends to the inside of the heat insulation cylinder 41, the connecting shaft 33 can be axially rotated at the center of the heat insulation cylinder 41, the outer side of the connecting shaft 33 is fixedly installed with the gas flow output blade 14 located in the inside of the heat insulation cylinder 41, when the connecting shaft 33 is axially rotated in the heat insulation cylinder 41, the connecting shaft 33 drives the gas flow output blade 14 to rotate, promotes the nitrogen gas in the heat insulation cylinder 41 to flow and fully mix, makes the temperature distribution of the nitrogen gas uniform, guarantees the temperature stability of the heating temperature area in the heating tank 44, and further improves the consistency of the temperature regulation of the gas, reduces the interference of the temperature fluctuation on the experiment, and simultaneously the hot nitrogen gas flow in the heat insulation cylinder 41 can be blown to the heat output pipe 43 and delivered to the inside of the heat insulation cylinder 41 through the heat output pipe 43.

[0030] As shown in the figure, the output end of the gas delivery cover 8 is connected with the sample tank 5 through the flange 11, and the output pipe 12 communicated with the processing equipment is further communicated with the sample tank 5, wherein the gas component sensor 13 is embedded in the output pipe 12, the gas output by the gas delivery cover 8 enters the sample tank 5 and reacts with the particles in the internal particle trap; the output pipe 12 of the sample tank 5 delivers the reacted gas to the processing equipment, and the gas component sensor 13 embedded in the output pipe 12 can detect the gas component, and through the analysis of the gas component, the combustion condition of the particles can be understood, and data support for determining the oxygen content and temperature range required for the best active regeneration effect of the particle trap is provided. Figure 1 、 Figure 6The heat exchange pipe 45 is a telescopic heat exchange pipe, the heating tank 44 is provided with a plurality of through holes near one end of the gas delivery cover 8, the gas delivery cover 8 and the normal temperature area of the heating tank 44 are communicated through the through holes, the pressure sensor 15 and the temperature sensor 16 detect the pressure and temperature of the nitrogen in the heat insulation cylinder 41 in real time, the nitrogen heating condition is stable, the filling pipe can supplement the nitrogen in time, the amount of nitrogen in the system is maintained, the telescopic heat exchange pipe 45 can adapt to the movement of the partition plate 46, the heat exchange effect is guaranteed, and the through holes on the heating tank 44 make the gas delivery cover 8 and the normal temperature area communicate smoothly, and the gas circulation is ensured.

[0031] The specific working principle of the active regeneration temperature control test device of the particle trap is as follows: Firstly, the particle trap to be tested is placed in the sample tank 5, and the states of various components are checked; Subsequently, natural gas and carbon dioxide are introduced through the gas inlet one-way valve 22 of the outer cylinder 21 in the gas tank 2, the natural gas is introduced through the exposed gas inlet one-way valve 22, and the carbon dioxide is introduced from the carbon dioxide storage device through the gas inlet pipe 23, the handle of the rotating blocking cylinder 261 is adjusted to limit the stroke of the piston 263, the delivery ratio of the natural gas and the carbon dioxide is controlled by adjusting the strokes of the two pistons 263, the telescopic rod 262 stably moves with the piston 263 under the cooperation of the outer pipe, the inner pipe and the spring, and the spherical universal joint 264 and the connecting head 265 eliminate the motion interference; The driving motor 31 is started to drive the crankshaft 32 to rotate, the piston 263 is driven to reciprocate in the outer cylinder 21 through the connecting head 265, the gas is delivered to the storage tank 1 through the gas outlet one-way valve 24 and the gas outlet pipe 25, the connecting shaft 33 rotates with the crankshaft 32 to drive the mixing blade 34 to rotate in the storage tank 1, and the two kinds of gas are fully mixed to form a gas with a specific oxygen content; Then, nitrogen is introduced into the heat insulation cylinder 41, the electric heating wire 42 heats the nitrogen, the heated nitrogen enters the heating temperature area of the heating tank 44 through the heat output pipe 43, the electric push rod 6 is started to drive the partition plate 46 to slide through the mounting seat 7, the size of the heating temperature area is adjusted, the area increases when the heat output pipe 43 is far away, and the area decreases when the heat output pipe 43 is close, so that the heat exchange degree of the gas in the heat exchange pipe 45 and the nitrogen is controlled, and the gas temperature is adjusted, at the same time, the nitrogen is returned to the heat insulation cylinder 41 through the high-temperature-resistant corrugated hose 471 in the return pipe 47 and the return connecting pipe 472 for recycling, the connecting shaft 33 drives the gas flow output blade 14 to rotate to promote the mixing and flow of the nitrogen in the heat insulation cylinder 41, and the pressure sensor 15 and the temperature sensor 16 monitor the pressure and temperature of the nitrogen in real time, and the nitrogen is supplemented through the filling pipe when necessary. Afterwards, the gas in the storage tank 1 enters the heat exchange pipe 45 through the electromagnetic valve 10 on the gas inlet cover 8, flows into the normal temperature area of the heating tank 44 after being heated, and is then transported to the sample tank 5 through the gas outlet cover 9, contacts and burns the particles in the particle trap; finally, the reacted gas is transported to the processing equipment through the output pipe 12, and the gas composition sensor 13 embedded in the output pipe 12 detects the gas composition to analyze the combustion of particles under different oxygen content and temperature conditions. By synchronously testing multiple groups of parameters, the oxygen content and temperature range required for the best active regeneration effect of the particle trap are determined. The device solves the problem of precise regulation of the coupling of oxygen content and temperature by independently regulating the two, and realizes efficient parallel testing with the help of multiple gas inlet covers 8 and heating tanks 44, effectively shortens the experimental period, and provides reliable data support for the regeneration optimization of the particle trap.

[0032] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0033] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An active regeneration temperature control test device for a particle trap, characterized in that, include: Storage tank (1), with a gas storage area formed inside; Gas tanks (2), two of which are set on the surface of storage tank (1), one of which is connected to carbon dioxide storage equipment; A gas delivery assembly (3) is installed on the storage tank (1) and connected to the gas tank (2) for delivering gases with different oxygen contents to the storage tank (1); Temperature regulating component (4) is provided on the other side surface of storage tank (1). The gas in storage tank (1) is heated by temperature regulating component (4), and temperature regulating component (4) can regulate gas temperature. The sample container (5) is set on the temperature control component (4) and a particle trap is placed inside. Heated gas is delivered to the sample container (5) to conduct an active regeneration temperature control test of the particle trap. By controlling the oxygen content and temperature of the incoming gas, the trapped particles are burned. Different concentrations or temperature conditions are tested simultaneously to determine the oxygen content and temperature range required for the best active regeneration effect of the particle trap.

2. The active regeneration temperature control test device for a particle trap according to claim 1, characterized in that, The gas tank (2) includes: The outer cylinder (21) is fixedly connected to the surface of the storage tank (1) by a bracket. The outer wall of the outer cylinder (21) is connected to an air inlet check valve (22). The air inlet end of one of the air inlet check valves (22) is connected to the carbon dioxide storage device through the air inlet pipe (23), and the air inlet end of the other air inlet check valve (22) is exposed to introduce natural gas. An exhaust check valve (24) is connected to the surface of the outer cylinder (21), and the exhaust check valve (24) is connected to the gas storage area of ​​the storage tank (1) through an exhaust pipe (25); An intake regulation control component (26) is installed on the outer cylinder (21) to regulate the oxygen content of natural gas and carbon dioxide entering the storage tank (1).

3. The active regeneration temperature control test device for a particle trap according to claim 2, characterized in that, The intake regulation control component (26) includes: The barrier cylinder (261) is threaded to the end of the outer cylinder (21). One end of the barrier cylinder (261) is located inside the outer cylinder (21), and the other end is located outside the outer cylinder (21). The position of the barrier cylinder (261) inside the outer cylinder (21) can be adjusted by the threaded connection. The telescopic rod (262) is sleeved inside the barrier cylinder (261) and can slide along the inner wall of the barrier cylinder (261). The fixed end of the telescopic rod (262) is connected to a piston (263) located inside the outer cylinder (21) and abutting against the inner wall of the outer cylinder (21). The telescopic end of the telescopic rod (262) is connected to a connector (265) through a ball joint (264).

4. The active regeneration temperature control test device for a particle trap according to claim 3, characterized in that, The gas delivery assembly (3) includes: The drive motor (31) is fixedly mounted on the surface of the storage tank (1) via a mounting bracket; The crankshaft (32) is fixedly installed on the output end of the drive motor (31). Two connectors (265) are sleeved on the outside of the crankshaft (32). The drive motor (31) drives the crankshaft (32) to rotate and drives the piston (263) to move inside the outer cylinder (21) through the connectors (265). A connecting shaft (33), one end of which is fixedly connected to the other end of a crankshaft (32), and the other end of the connecting shaft (33) passes through the entire storage tank (1). The connecting shaft (33) can rotate axially at the center of the storage tank (1). The mixing blade (34) is fixedly installed on the outside of the connecting shaft (33) and located in the gas storage area of ​​the storage tank (1), and is used to mix the incoming natural gas with carbon dioxide.

5. The active regeneration temperature control test device for a particle trap according to claim 4, characterized in that, The temperature regulating component (4) includes: A heat insulation cylinder (41) is fixedly installed on the other side surface of the storage tank (1), and nitrogen gas is introduced into the heat insulation cylinder (41); An electric heating wire (42) is fixedly installed on the inside of the heat insulation cylinder (41) to heat the nitrogen gas inside the heat insulation cylinder (41); Heat output pipes (43) are connected to the outer wall of the heat insulation cylinder (41), and there are several of them arranged in a ring at equal intervals; The heating tank (44) is fixedly installed on the other end of the heat output pipe (43) and is connected to the heat output pipe (43); Heat exchange tubes (45) are installed through the heating tank (44), and there are several of them, which are parallel to the axis of the heating tank (44). A partition (46) is slidably connected to the inside of the heating tank (44), and the other end of the heat exchange tube (45) passes through the entire partition (46). The partition (46) is used to divide the internal area of ​​the heating tank (44) into a heating temperature area and a normal temperature area, wherein the heat exchange tube (45) is located in the heating temperature area. The return pipe (47) passes through the partition (46) at one end and is connected to the heating temperature area. The other end passes through the heating tank (44) and is connected to the heat insulation cylinder (41). Nitrogen gas heated by the electric heating wire (42) can be output to the heating temperature area through the heat output pipe (43) and finally flow into the heat insulation cylinder (41) through the return pipe (47).

6. The active regeneration temperature control test device for a particle trap according to claim 5, characterized in that, An electric push rod (6) is fixedly installed through the axis of the heating tank (44). A mounting base (7) is fixedly installed between the moving end of the electric push rod (6) and the partition (46). The return pipe (47) includes a high-temperature resistant corrugated hose (471) and a return pipe (472). One end of the high-temperature resistant corrugated hose (471) extends through and to the other side surface of the partition (46) and is connected to the heating temperature area. The other end of the high-temperature resistant corrugated hose (471) is connected to the return pipe (472). The other end of the return pipe (472) is connected to the heating tank (44) and to the heat insulation cylinder (41).

7. The active regeneration temperature control test device for a particle trap according to claim 5, characterized in that, The outer wall of the storage tank (1) is connected to several gas supply hoods (8). The number and distribution of the gas supply hoods (8) are matched with the heating tank (44). The gas supply end of the gas supply hood (8) is connected to one side end of several heat exchange tubes (45). The other side end of the heating tank (44) is fixedly installed with a gas outlet hood (9). The input end of the gas outlet hood (9) is connected to the normal temperature zone of the heating tank (44). A solenoid valve (10) is also provided on the gas supply hood (8).

8. The active regeneration temperature control test device for a particle trap according to claim 7, characterized in that, The output end of the gas supply hood (8) is connected to a sample container (5) via a flange (11). The sample container (5) is also connected to an output pipe (12) that is connected to the processing equipment. A gas composition sensor (13) is embedded in the output pipe (12).

9. The active regeneration temperature control test device for a particle trap according to claim 5, characterized in that, The connecting shaft (33) passes through and extends to the inside of the heat insulation cylinder (41). The connecting shaft (33) can rotate axially at the center of the heat insulation cylinder (41). An airflow output blade (14) located inside the heat insulation cylinder (41) is fixedly installed on the outside of the connecting shaft (33).

10. The active regeneration temperature control test device for a particle trap according to claim 5, characterized in that, The heat insulation cylinder (41) is also connected to a pressure sensor (15) and a temperature sensor (16) for detecting nitrogen gas inside the heat insulation cylinder (41). The heat exchange tube (45) is a telescopic heat exchange tube. The heating tank (44) has several through holes at one end near the gas supply hood (8). The gas supply hood (8) is connected to the normal temperature zone of the heating tank (44) through several through holes.

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