Hydraulic power and Stirling engine cooperative power generation device

Abstract

The utility model relates to a hydraulic power and Stirling engine cooperative power generation device which comprises a waterwheel type hydraulic power generation device, a biomass energy boiler, a Stirling engine, a circulating water pump and the like, and media for driving waterwheel wheels to rotate are water in an artificial canal and circulating water of a circulating water system related to a Stirling engine cold cavity heat exchange device. The Stirling engine hot cavity is directly installed in a biomass energy boiler hearth, and the circulating water pump provides cooling water for the Stirling engine cold cavity. According to the device, a part of biomass energy boiler hearth heat is absorbed by a Stirling engine heat cavity, and flue gas and air at the rear end of the boiler, a steam-water system and the like run conventionally. Meanwhile, water in the artificial canal is used as cooling circulating water and then led back to the upstream of the artificial canal to drive the waterwheel type hydroelectric generation device to generate electricity. Water in a natural water area is used as a cooling medium of the cold cavity of the Stirling engine, the temperature difference between the hot cavity and the cold cavity is increased, and the efficiency of the Stirling engine is improved. The waterwheel type hydroelectric generation device recovers kinetic energy of circulating water at the rear end, so that the energy utilization rate is maximized.

Description

Technical Field

[0001] The utility model relates to a hydraulic and Stirling machine cooperative power generation device. Background Art

[0002] In recent years, waterwheel hydropower generation technology has developed rapidly and is mainly used in small rivers, small reservoirs and other fields. The rapid development of waterwheel hydropower generation technology is mainly reflected in a waterwheel hydropower generation device. The waterwheel, waterwheel and generator are important components of the device. Its main function is to use the fluidity of water to drive the waterwheel to rotate, thereby driving the generator to generate electricity. my country's water resources and biomass energy are very rich, but the current utilization methods are too single. For example, in terms of hydropower generation, the main means is to build hydropower stations. Traditional hydropower stations have high costs, affect the ecology, and produce a lot of sedimentation. Water directly acts on the turbine generator, and the amount of water and hydraulic power required are large. The emergence of waterwheel hydropower generation devices has alleviated these situations. Looking at biomass energy utilization technology, there are already many relatively mature biomass boilers, which have good heating and power generation efficiency, and can be combined with Stirling engines for power generation. The Stirling engine is a closed external combustion engine. The external combustion system is an important part of the Stirling engine. Its main function is to convert the chemical energy of the fuel into heat energy and transfer it to the working fluid in the hot end engine by organizing combustion and heat exchange in a reasonable and efficient manner, so that the working fluid in the engine expands and works in the engine, converting the heat energy into mechanical energy to drive the generator to generate electricity. Therefore, in order to rationally utilize my country's abundant water resources and biomass resources and avoid some hydraulic losses, there must be a device that can use multiple energy sources to generate electricity in coordination. Hydraulic and Stirling engine coordinated power generation is a more ideal way. Summary of the invention

[0003] The purpose of the utility model is to design a special combination of a biomass boiler furnace and a Stirling engine heat chamber and a waterwheel-type hydroelectric power generation device, in order to improve the efficiency of energy utilization in the power generation system, and to design a hydraulic and Stirling engine coordinated power generation device.

[0004] The solution adopted by the utility model to solve the technical problem is a hydraulic and Stirling machine cooperative power generation device, including a waterwheel-type hydroelectric power generation device, a biomass energy boiler, a Stirling machine and a circulating water pump, wherein the biomass energy boiler is connected to the hot chamber of the Stirling machine, the hot chamber of the Stirling machine absorbs the heat of the flue gas in the furnace, the waterwheel-type hydroelectric power generation device is installed as a whole in an outdoor artificial water channel, the inlet end of the circulating water pump is connected to the downstream of the waterwheel-type hydroelectric power generation device, the outlet end of the circulating water pump is connected to the inlet of the cold chamber cooling device of the Stirling machine, and the circulating water is introduced into the upstream of the waterwheel-type hydroelectric power generation device in the artificial water channel after passing through the cold chamber cooling device of the Stirling machine.

[0005] Furthermore, the boiler is a biomass energy boiler, which is easy to meet environmental protection indicators, has stable combustion, and has a wide range of abundant raw materials.

[0006] Furthermore, the flue gas, air, steam and water systems of the biomass boiler operate normally and supply steam to the outside. The Stirling engine heat chamber is only used as a device to absorb part of the heat in the flue.

[0007] Furthermore, the circulating water is cold water from natural waters.

[0008] Furthermore, the waterwheel-type hydroelectric power generation device is installed in an outdoor artificial water channel, and there is no need to build facilities such as reservoirs.

[0009] Compared with the prior art, the utility model has the following obvious effects: the biomass energy boiler system has stable combustion, high combustion efficiency, high hot end parameters, and can have a good space for development when combined with the Stirling engine, with considerable power generation efficiency; the waterwheel-type hydroelectric power generation device does not need to build too many hydraulic facilities, and can be installed on the surface of various water bodies to operate, causing less damage to the ecological environment, and the cooling water kinetic energy used by the Stirling engine cold cavity cooling device is effectively recycled. Through this power generation method of the hydraulic generator and the Stirling engine in coordination, the power generation efficiency of the entire system is improved, and the energy utilization rate is maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model patent is further described below in conjunction with the accompanying drawings.

[0011] Figure 1 A schematic diagram of the structure of the device.

[0012] In the figure: 1-biomass boiler; 2-Stirling engine; 21-Stirling engine hot chamber; 22-Stirling engine cold chamber; 23-Stirling engine cold chamber heat exchange device; 24-Stirling engine generator; 3-circulating water pump; 4-waterwheel type hydroelectric power generation device. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0014] like Figure 1 As shown, a hydraulic and Stirling machine cooperative power generation device includes a waterwheel type hydroelectric power generation device, a biomass boiler, a Stirling machine, and a circulating water pump. The Stirling machine hot chamber 21 is connected to the inside of the furnace of the biomass boiler 1, and the Stirling machine cold chamber heat exchange device 23 is connected to the outlet of the circulating water pump 3. The outlet of the circulating water pump 3 is connected to the upstream artificial water channel of the waterwheel type hydroelectric power generation device 4, and the inlet of the circulating water pump 3 is connected to the downstream artificial water channel of the waterwheel type hydroelectric power generation device 4. In this system, the Stirling machine cold chamber heat exchange device 23 is used for heat exchange of the Stirling machine cold chamber 22, and the connection method is contact connection.

[0015] In this embodiment, the power generation device in the Stirling machine 2 is a Stirling machine generator 24, which is driven by the reciprocating motion of the Stirling machine hot chamber 21 and the Stirling machine cold chamber 22 to drive the connecting rod.

[0016] In this embodiment, the biomass boiler 1 serves as a stable energy supply for the entire system, ensuring the normal operation of the Stirling engine 2, which requires the operation of auxiliary equipment such as the circulating water pump 3. The circulating water pump 3 generates a certain amount of water energy during operation, driving the waterwheel-type hydroelectric power generation device 4 to generate electricity. Therefore, there are two power generation devices in the present invention, namely the Stirling engine generator 24 and the waterwheel-type hydroelectric power generation device 4.

[0017] In this embodiment, the waterwheel type hydroelectric power generation device 4 is installed in an outdoor artificial canal, and the artificial canal only needs to be simply constructed to achieve the purpose of drainage.

[0018] In this embodiment, the driving energy of the waterwheel type hydroelectric power generation device 4 comes from the circulating water of the circulating water system involved in the Stirling machine cold chamber heat exchange device 23 and the natural water flow introduced by the artificial canal.

[0019] Unless otherwise stated, any technical solution disclosed in the above patent, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious or representative technical effect among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0020] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection can also be replaced by an integrated structure (for example, manufactured by a casting process) (except when it is obviously impossible to use an integrated forming process).

[0021] In the description of this patent, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent, and do not indicate or imply 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 a limitation on this patent.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the patent rather than to limit it; although the patent is described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the patent can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the patent, they should all be included in the scope of the technical solution requested for protection by the patent.

Claims

1. A hydraulic and Stirling engine synergistic power generation device, characterized in that: It includes a waterwheel-type hydroelectric power generation device, a biomass boiler, a Stirling machine and a circulating water pump; The boiler is a biomass boiler, the fuel of which is various types of biomass, including a furnace structure; The waterwheel-type hydroelectric power generation device includes a waterwheel, a waterwheel wheel, and a generator. The waterwheel is installed in an artificial canal, the waterwheel wheel is semi-immersed on the water surface, and the generator receives kinetic energy from the waterwheel drive shaft and converts the kinetic energy into electrical energy.

2. A hydraulic and Stirling machine cooperative power generation device according to claim 1, characterized in that: The Stirling machine includes a hot chamber, a cold chamber, a cold chamber heat exchange device, and a generator. The hot chamber of the Stirling machine is directly installed inside the furnace of the biomass boiler, and the cold chamber of the Stirling machine is installed outside the furnace. The medium of the cold chamber heat exchange device is circulating cooling water. The inlet end of the cold chamber heat exchange device is connected to the outlet end of the circulating water pump, and the outlet end of the cold chamber heat exchange device is connected to the artificial water channel upstream of the waterwheel-type hydroelectric power generation device.

3. The hydraulic and Stirling machine cooperative power generation device according to claim 1, characterized in that: The inlet end of the circulating water pump is connected to the downstream of the artificial water channel where the waterwheel type hydroelectric power generation device is located, the outlet end of the circulating water pump is connected to the inlet end of the Stirling machine cold chamber heat exchange device, and the drainage of the circulating water pump is introduced into the upstream of the artificial water channel where the waterwheel type hydroelectric power generation device is located.

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