Turbocharged heat and power cogeneration device

Abstract

The invention provides a turbocharged heat and power cogeneration device which comprises a supercharging integrated power generation system, the supercharging integrated power generation system compresses gas and divides the compressed gas into two paths, the first path of compressed gas enters a combustion system after being heated by a volute, and the second path of compressed gas enters the combustion system after being cooled by a first heat exchanger; after fuel oil is combusted in the combustion system, exhausted gas enters the volute to push the impeller to do work and finally enters the second heat exchanger; the electric water pump distributes a heat transfer medium in the heated component to the first heat exchanger and the second heat exchanger; the fuel pump distributes fuel to the second heat exchanger and a fuel injector of the combustion system. According to the turbocharged combined heat and power device, fuel is heated through exhaust waste heat of the combustor, the atomization degree of the fuel in the combustion system is improved, and then the working efficiency of the combined heat and power device is improved.

Description

Technical Field

[0001] The invention belongs to the field of engines, and in particular relates to a turbocharged heat and power cogeneration device which can be quickly started in plateau and low temperature environments. Background Art

[0002] At -50℃, the intake temperature of the reciprocating piston engine is low, the medium temperature of the cooling system and lubrication system is low, the engine starting resistance is large, and it is difficult to start quickly. At the same time, the battery performance of the vehicle in the plateau and low temperature environment is seriously degraded, and it is unable to provide power for the electrical load on the vehicle for a long time. When in the plateau and low temperature environment, in order to improve the engine starting performance and ensure the battery power of the vehicle, the on-board cogeneration device must be used. Existing turbocharged cogeneration devices, such as the axial-flow thermoelectric device of Chinese patent CN201510391372.6, are provided with a volute water jacket outside the combustion chamber to increase heat output. The cogeneration device of Chinese patent 202311263959.X adopts an exhaust switching valve to adjust the power generation and heating value. The cogeneration system of Chinese patent 202311537575.2 adopts an integrated main and auxiliary machine integration to improve the compactness of the power device. However, the above inventions do not consider the influence of the too low temperature of the fuel used in the burner on the fuel atomization and the influence of the too high intake air temperature of the burner resulting in low intake air density on the working efficiency of the burner. Summary of the invention

[0003] In view of this, the present invention aims to propose a turbocharged cogeneration device to solve the problem of low working efficiency caused by the lack of fuel supply system temperature regulation and air intake system temperature regulation capabilities of existing equipment when the engine is started quickly in plateau and low temperature environments.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A turbocharged heat and power cogeneration device includes a supercharged integrated power generation system. The supercharged integrated power generation system compresses gas and divides it into two paths. The first path of gas enters the combustion system after being heated by a volute, and the second path of gas enters the combustion system after being cooled by a No. 1 heat exchanger. After the fuel is burned in the combustion system, the exhaust gas enters the volute to push the impeller to do work and finally enters the No. 2 heat exchanger; the electric water pump distributes the heat transfer medium in the heated component to the No. 1 heat exchanger and the No. 2 heat exchanger; the fuel pump distributes the fuel to the No. 2 heat exchanger and the fuel injector of the combustion system; the combustion system is also provided with sensors for collecting the intake temperature and the fuel supply temperature.

[0006] Furthermore, the boost integrated power generation system includes an intermediate body and an integrated starter-generator motor, wherein the rotor of the integrated starter-generator motor is mounted on the intermediate body and rotates along with the rotating shaft, and the stator is mounted on the compressor casing of the compressor.

[0007] Furthermore, the boost integrated power generation system also includes a turbocharger, and the turbocharger housing has cooling fins.

[0008] Furthermore, the gas pipeline includes an air intake pipeline in front of the volute, an air intake pipeline in front of the intercooler, an exhaust pipeline of the combustion system and an exhaust pipeline after the volute. The air intake pipeline in front of the volute allows the compressed gas to enter the combustion system after being heated by the volute, the air intake pipeline in front of the intercooler allows the compressed gas to enter the combustion system after being cooled by the No. 1 heat exchanger, and the exhaust pipeline of the combustion system allows the gas exhausted from the combustion system to enter the volute to drive the impeller to do work, and finally enter the No. 2 heat exchanger through the exhaust pipeline after the volute.

[0009] Furthermore, the second heat exchanger is a dual-path integrated heat exchanger, and the fuel oil and the heat transfer medium in the heat receiving component do not affect each other in the second heat exchanger.

[0010] Furthermore, the second heat exchanger may be two split-type series or parallel heat exchangers, which respectively act on the fuel and the heat transfer medium in the heated component through the exhaust gas in the exhaust pipe behind the volute.

[0011] Furthermore, the electric water pump distributes the heat transfer medium in the heat receiving component to the first heat exchanger and the second heat exchanger through the first liquid three-way valve.

[0012] Furthermore, the fuel pump distributes the fuel to the No. 2 heat exchanger and the fuel injector of the combustion system through the No. 2 liquid three-way valve.

[0013] Furthermore, the boost integrated power generation system compresses the gas and divides the compressed gas into two paths through a gas three-way valve.

[0014] Furthermore, the combustion system includes a combustion system casing and a swirler, a flame tube, and an igniter arranged inside the combustion system casing. The inner cavity of the combustion system casing is respectively connected to the intake pipeline in front of the volute and the intake pipeline in front of the intercooler. The flame tube is connected to the exhaust pipeline of the combustion system and is used to allow the exhaust gas to enter the volute to push the impeller to do work. The igniter and the swirler are fixedly installed on the flame tube.

[0015] Compared with the prior art, the turbocharged cogeneration device of the present invention has the following advantages:

[0016] (1) The turbocharged cogeneration device of the present invention heats the fuel by utilizing the waste heat from the burner exhaust gas, thereby improving the atomization degree of the fuel in the combustion system and thereby improving the working efficiency of the cogeneration device.

[0017] (2) The turbocharged cogeneration device of the present invention reduces the burner intake air temperature through the heat exchanger cooling pipeline, increases the intake air mass flow rate, and thus improves the working capacity of the cogeneration device.

[0018] (3) The turbocharged cogeneration device described in the present invention adjusts the burner intake air temperature by combining the heat exchanger cooling pipeline and the turbine casing heating pipeline, so that the intake air temperature in the combustion system is at a suitable temperature, thereby improving the working efficiency of the cogeneration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of a turbocharged cogeneration device according to an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Supercharged integrated power generation system; 101. Intermediate; 102. Compressor; 103. Starter motor; 104. Turbocharger; 2. Gas pipeline; 201. Intake pipeline before volute; 202. Intake pipeline before intercooler; 203. Exhaust pipeline of combustion system; 204. Exhaust pipeline after volute; 3. Gas three-way valve; 4. No. 1 heat exchanger; 5. Heat-receiving parts; 6. Electric water pump; 7. No. 1 liquid three-way valve; 8. No. 2 heat exchanger; 9. Fuel pump; 10. No. 2 liquid three-way valve; 11. Combustion system; 1101. Injector; 1102. Swirl; 1103. Flame tube; 1104. Ignitor; 1105. Combustion system casing; 1106. No. 1 temperature sensor; 1107. No. 2 temperature sensor. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0027] A turbocharged combined heat and power device, such as Figure 1 As shown, it includes a pressurized integrated power generation system 1, a gas pipeline 2, a gas three-way valve 3, a first heat exchanger 4, a second heat exchanger 8, a heat receiving component 5, an electric water pump 6, a first liquid three-way valve 7, a second liquid three-way valve 10, a fuel pump 9, and a combustion system 11. The pressurized integrated power generation system 1 compresses the gas and is divided into two paths through the gas three-way valve 3. The first path of gas enters the combustion system 11 after being heated by the volute, and the second path of gas enters the combustion system 11 after being cooled by the first heat exchanger 4. After the fuel is burned in the combustion system 11, the exhaust gas enters the volute to drive the impeller to do The fuel oil is then heated to 1000Nm and then heated to 1000Nm. The fuel oil is ...

[0028] The boost integrated power generation system 1 includes an intermediate body 101, a compressor 102, an integrated starter motor 103 and a turbocharger 104. The rotor of the integrated starter motor 103 is installed on the intermediate body 101 and rotates with the rotating shaft. The stator is installed on the compression shell of the compressor 102. The intermediate body 101 is connected to the turbocharger 104 through the rotating shaft. The outer shell of the turbocharger 104 has cooling fins.

[0029] The gas pipeline 2 includes an air intake pipeline 201 before the volute, an air intake pipeline 202 before the intercooler, an exhaust pipeline 203 of the combustion system and an exhaust pipeline 204 after the volute. The air intake pipeline 201 before the volute allows the compressed gas to enter the combustion system 11 after being heated by the volute, the air intake pipeline 202 before the intercooler allows the compressed gas to enter the combustion system 11 after being cooled by the No. 1 heat exchanger 4, and the exhaust pipeline 203 of the combustion system allows the gas exhausted from the flame tube 1103 to enter the volute to drive the impeller to do work, and finally enter the No. 2 heat exchanger 8 through the exhaust pipeline 204 after the volute.

[0030] The electric water pump 6 distributes the heat transfer medium in the heat receiving component to the first heat exchanger 4 and the second heat exchanger 8 through the first liquid three-way valve 7 .

[0031] The fuel pump 9 distributes the fuel to the No. 2 heat exchanger 8 and the injector 1101 through the No. 2 liquid three-way valve 10.

[0032] The second heat exchanger 8 is a dual-channel integrated heat exchanger, and the fuel oil and the heat transfer medium in the heat receiving component do not affect each other in the heat exchanger. The heat exchanger 8 can also be two split-type series or parallel heat exchangers, which respectively act on the fuel oil and the heat transfer medium in the heat receiving component through the exhaust gas in the exhaust pipe 204 after the volute.

[0033] The combustion system 11 includes a combustion system casing 1105 and a swirler 1102, a flame tube 1103, and an igniter 1104 arranged therein. The inner cavity of the combustion system casing 1105 is respectively connected to the front air intake pipeline 201 of the volute and the front air intake pipeline 202 of the intercooler. The flame tube 1103 is connected to the exhaust pipeline 203 of the combustion system and is used to allow the exhaust gas to enter the volute to push the impeller to do work. The flame tube 1103 is fixedly installed with the igniter 1104 and the swirler 1102. A No. 2 temperature sensor 1107 is installed on the No. 1 pipeline, and the No. 2 temperature sensor sends the collected data to an external controller. The swirler 1102 is also provided with an injector 1101, and the No. 2 temperature sensor 1107 is used to collect the temperature of the fuel supply system; the combustion system casing 1105 is also provided with a No. 1 temperature sensor 1106, which is used to collect the intake temperature of the combustion system, that is, the temperature of the inner cavity of the casing 1105. The first temperature sensor 1106 and the second temperature sensor 1107 are respectively connected to an external controller and transmit the collected data to the controller.

[0034] The working principle of a turbocharged cogeneration device is:

[0035] When the turbocharged cogeneration device receives a work instruction, the exhaust three-way valve 3 keeps the air intake pipe 201 in front of the volute fully open, the electric water pump 6 is powered on, and the starting-integrated motor 103 is in an electric starting state, dragging the intermediate body 101 to drive the impeller in the compressor 102 to compress the intake air, which then enters the combustion system 11 after being heated by the outer casing of the turbocharger 104 through the air intake pipe 201 in front of the volute. The intake air in the combustion system 11 passes through the swirler 1102 to atomize the fuel sprayed by the injector 1101 and is ignited by the igniter 1104. The high-temperature gas in the combustion system 11 enters the turbocharger 104 through the combustion system exhaust through the pipeline 203. Then, the gas of the turbocharger 104 enters the No. 2 heat exchanger 8 through the exhaust pipeline 204 after the volute, and is discharged from the exhaust port after heat exchange with the heat transfer medium in the heat receiving component 5. When the turbocharger 104 reaches a stable operating speed, the starter-in-one motor 103 stops the electric starting state, and the high-temperature gas in the combustion system 11 passes through the combustion system exhaust through the pipeline 203 to push the impeller in the turbocharger 104 to do work and generate electricity.

[0036] When the controller detects that the No. 1 temperature sensor 1106 in the turbocharged cogeneration device monitors that the intake temperature in the combustion system 11 is too high, it adjusts the gas three-way valve 3 and the No. 1 liquid three-way valve 7 to open the pre-intercooling intake pipeline 202, and the compressed air exchanges heat with the cooling medium in the heat receiving component 5 through the No. 1 heat exchanger 4, so that the intake temperature of the combustion system 11 is reduced, which not only improves the intake mass flow rate and the burner work capacity, but also keeps the intake air in the combustion system 11 at a suitable temperature; when the controller determines that the No. 2 temperature sensor 1107 monitors that the fuel temperature of the fuel supply system is too low, it adjusts the No. 2 liquid three-way valve 10 to make the fuel pass through the No. 2 heat exchanger 8 and the cooling medium in the heat receiving component 5 to make the fuel temperature of the combustion system 11 at a suitable temperature. By adjusting the gas three-way valve 3, the No. 1 liquid three-way valve 7 and the No. 2 liquid three-way valve 10, the intake system and the fuel supply system of the combustion system 11 have temperature regulation capabilities, so that the combustion system is in a high-efficiency working range. The combustion system works efficiently, which increases the amount of heat carried away by the exhaust gas per unit time. The exhaust gas then enters the second heat exchanger 8 through the exhaust pipe 204 behind the volute, thereby improving the heat exchange efficiency with the cooling medium in the heat receiving component 5, thereby improving the working efficiency of the turbocharged cogeneration device.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A turbocharged heat and power cogeneration device, characterized in that: It includes a supercharged integrated power generation system. The supercharged integrated power generation system compresses the gas and divides it into two paths. The first path of gas enters the combustion system after being heated by the volute, and the second path of gas enters the combustion system after being cooled by the No. 1 heat exchanger. After the fuel is burned in the combustion system, the exhaust gas enters the volute to push the impeller to do work and finally enters the No. 2 heat exchanger; the electric water pump distributes the heat transfer medium in the heated components to the No. 1 heat exchanger and the No. 2 heat exchanger; the fuel pump distributes the fuel to the No. 2 heat exchanger and the injector of the combustion system; the combustion system is also provided with sensors for collecting the intake temperature and the fuel supply temperature.

2. A turbocharged cogeneration device according to claim 1, characterized in that: The supercharged integrated power generation system includes an intermediate body and a starter-generator integrated motor. The rotor of the starter-generator integrated motor is installed on the intermediate body and rotates with the shaft, and the stator is installed on the compressor casing.

3. The turbocharged cogeneration device according to claim 1, characterized in that: The supercharging integrated power generation system further comprises a turbocharger, and a casing of the turbocharger is provided with heat dissipation fins.

4. The turbocharged cogeneration device according to claim 1, characterized in that: The gas pipeline includes the air intake pipeline before the volute, the air intake pipeline before the intercooler, the exhaust pipeline of the combustion system and the exhaust pipeline after the volute. The air intake pipeline before the volute allows the compressed gas to enter the combustion system after being heated by the volute. The air intake pipeline before the intercooler allows the compressed gas to enter the combustion system after being cooled by the No. 1 heat exchanger. The exhaust pipeline of the combustion system allows the gas exhausted from the combustion system to enter the volute to push the impeller to do work, and finally enter the No. 2 heat exchanger through the exhaust pipeline after the volute.

5. The turbocharged cogeneration device according to claim 1, characterized in that: The No. 2 heat exchanger is a dual-channel integrated heat exchanger, and the fuel oil and the heat transfer medium in the heated components do not affect each other in the No. 2 heat exchanger.

6. The turbocharged cogeneration device according to claim 4, characterized in that: The No. 2 heat exchanger consists of two split-type series or parallel heat exchangers, which respectively act on the fuel oil and the heat transfer medium in the heated components through the exhaust gas in the exhaust pipe behind the volute.

7. The turbocharged cogeneration device according to claim 1, characterized in that: The electric water pump distributes the heat transfer medium in the heated component to the No. 1 heat exchanger and the No. 2 heat exchanger through the No. 1 liquid three-way valve.

8. The turbocharged cogeneration device according to claim 1, characterized in that: The fuel pump distributes the fuel to the No. 2 heat exchanger and the injectors of the combustion system through the No. 2 liquid three-way valve.

9. The turbocharged cogeneration device according to claim 1, characterized in that: The booster integrated power generation system compresses the gas and divides it into two paths through a gas three-way valve.

10. The turbocharged cogeneration device according to claim 1, characterized in that: The combustion system includes a combustion system casing and a swirler, a flame tube and an igniter arranged inside the combustion system casing. The inner cavity of the combustion system casing is respectively connected to the intake pipeline in front of the volute and the intake pipeline in front of the intercooler. The flame tube is connected to the exhaust pipeline of the combustion system to allow the exhaust gas to enter the volute to push the impeller to do work. The igniter and the swirler are fixedly installed on the flame tube. The swirler is respectively connected to the No. 2 heat exchanger and the liquid three-way valve through the No. 1 pipeline.

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