Generator set combined heat and power supply system and forced heat dissipation device

Abstract

The utility model belongs to the technical field of generator set, concretely relates to a generator set heat power combined supply system and forced heat abstractor, the device includes: generator set, two -stage circulation system, it includes: two -stage heat exchanger, sets up in one side of generator set with through pipeline connection of generator set, the water tank of heat dissipation, its top end is connected with two -stage heat exchanger through two -stage water pipe, wherein the bottom end of water tank of heat dissipation is guided into the inside of generator set through drain pipe after heat dissipation, three -stage circulation system, it includes: domestic water tank, with two -stage heat exchanger through three -stage water inlet pipe and three -stage drain pipe intercommunication, wherein two -stage heat exchanger is suitable for guiding the water after heating into domestic water tank through three -stage water inlet pipe, and the cold water in domestic water tank is suitable for entering two -stage heat exchanger through three -stage drain pipe.

Description

Technical Field

[0001] This utility model belongs to the field of generator set technology, specifically relating to generator set combined heat and power supply system and forced cooling device. Background Technology

[0002] Generator sets, as important energy conversion devices, are widely used in industrial production, commercial buildings, and emergency power supply. Their core principle is to convert the chemical energy of fuel into mechanical energy through an internal combustion engine, and finally into electrical energy by a generator. However, in this energy conversion process, only about one-third of the total energy generated by fuel combustion is effectively utilized for driving work, resulting in generally low energy utilization efficiency. The main reason for this problem is that most of the energy is lost in various forms, most notably in the high-temperature exhaust gases and the heat dissipated into the environment through the engine cooling system; these two losses each account for about 30% of the total fuel energy.

[0003] In existing technologies, to address the aforementioned energy losses, the industry has begun to recover and utilize the waste heat from high-temperature exhaust gases to some extent. Currently, conventional generator cooling solutions primarily use forced air cooling or liquid cooling to directly release this heat into the atmosphere, which is essentially a huge waste of available energy. This not only makes it difficult to further improve the overall energy efficiency of generator sets, but also necessitates the consumption of additional fuel or electricity to produce hot water in applications requiring hot water (such as domestic hot water and heating), increasing operating costs and carbon emissions. In other words, the cooling systems of existing generator sets have a single function, solely aiming to prevent the engine from overheating, failing to consider the heat dissipation process as a usable energy harvesting process.

[0004] Therefore, a combined heat and power system and a forced cooling device for generator sets are designed to solve the technical problem that the cooling system of existing generator sets has a single function and does not effectively utilize the heat energy generated by the generator set.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one generator set combined heat and power system and a forced cooling device.

[0007] In a first aspect, embodiments of this disclosure provide a combined heat and power (CHP) system for a generator set, comprising: Generator set; A two-stage circulation system, which includes: A secondary heat exchanger is located on one side of the generator set and connected to the generator set via a pipeline; The cooling water tank is connected at its top to the secondary heat exchanger via secondary water pipes; The bottom of the radiator tank channels the cooled water after heat dissipation into the generator set through a drain pipe. A three-level circulation system includes: The domestic water tank is connected to the secondary heat exchanger via a tertiary inlet pipe and a tertiary outlet pipe; wherein The secondary heat exchanger is adapted to introduce heated water into the domestic water tank through the tertiary inlet pipe, and the cold water in the domestic water tank is adapted to enter the secondary heat exchanger through the tertiary drain pipe.

[0008] In one optional embodiment, a forced cooling device is provided at the bottom of the heat dissipation tank, which includes: A rotating shaft passes through the bottom of the radiator and is connected to a bearing on the lower end face of the radiator. The stirring blades are arranged circumferentially on the outer wall of the rotating shaft along its axis; and A drive motor is located on one side of the radiator, and the output end of the drive motor is connected to the bottom end of the rotating shaft via a belt.

[0009] In one optional embodiment, an L-shaped fixing bracket is provided on the outer wall of the heat dissipation tank; wherein A drive shaft is provided through the horizontal end of the L-shaped fixing frame, and the bottom end of the drive shaft is connected to the output end of the drive motor; and The top end of the drive shaft is provided with a drive bevel gear; A driven shaft is provided through the vertical end of the L-shaped fixing frame, and a driven bevel gear is provided on the outer wall of the driven shaft; wherein The driven bevel gear meshes with the driving bevel gear.

[0010] In one optional embodiment, a plurality of cooling fan blades are arranged circumferentially on the outer wall of the driven shaft near the heat sink.

[0011] In one optional embodiment, a regulating water tank is provided on one side of the heat dissipation water tank, and the heat dissipation water tank and the regulating water tank are connected by a drain pipe. The regulating water tank is connected to the generator set via a regulating water pipe; wherein The regulating water pipe is equipped with a two-stage circulating water pump and a two-stage emergency relief valve.

[0012] In one optional embodiment, the three-stage water inlet pipe is equipped with a three-stage circulating water pump, a solenoid valve, and a vent valve. The three-stage drainage pipe is equipped with a three-stage emergency relief valve.

[0013] In one optional embodiment, both the domestic water tank and the regulating water tank are provided with a water replenishment device on one side, and both water replenishment devices include: Both water supply tanks are connected to the regulating water tank and the domestic water tank via water supply pipes; among them Each of the water supply pipes is equipped with a check valve.

[0014] Secondly, embodiments of this disclosure also provide a forced heat dissipation device, comprising: The rotating shaft passes through the bottom of the radiator and is connected to the bearing on the lower end face of the radiator. The stirring blades are arranged circumferentially on the outer wall of the rotating shaft along its axis; and A drive motor is located on one side of the radiator, and the output end of the drive motor is connected to the bottom end of the rotating shaft via a belt.

[0015] In one optional embodiment, an L-shaped fixing bracket is provided on the outer wall of the heat dissipation tank; wherein A drive shaft is provided through the horizontal end of the L-shaped fixing frame, and the bottom end of the drive shaft is connected to the output end of the drive motor; and The top end of the drive shaft is provided with a drive bevel gear; A driven shaft is provided through the vertical end of the L-shaped fixing frame, and a driven bevel gear is provided on the outer wall of the driven shaft; wherein The driven bevel gear meshes with the driving bevel gear.

[0016] In one optional embodiment, a plurality of cooling fan blades are arranged circumferentially on the outer wall of the driven shaft near the heat sink.

[0017] The beneficial effects of this utility model are that, by setting up a two-stage circulation system followed by a three-stage circulation system, the waste heat is maximized to be transferred to the hot water system while ensuring the safe operation of the engine. This improvement not only significantly improves the comprehensive energy utilization rate and reduces the cost of hot water preparation, but also makes the generator set a stable and reliable heat source while providing electricity, realizing combined heat and power supply, and has significant economic and environmental benefits.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A system overall plan view provided for embodiments of this disclosure; Figure 2 A three-dimensional sectional view of the heat dissipation tank and its surrounding components provided in an embodiment of this disclosure.

[0022] In the picture: 1. Generator set; 10. Air vent valve; 2. Secondary circulation system; 20. Secondary heat exchanger; 21. Secondary water pipe; 22. Radiator; 23. Drain pipe; 24. Regulating water tank; 25. Secondary circulating water pump; 26. Secondary emergency relief valve; 27. Regulating water pipe; 3. Three-stage circulation system; 30. Three-stage circulating water pump; 31. Three-stage inlet pipe; 310. Solenoid valve; 311. Air vent valve; 32. Domestic water tank; 33. Three-stage drain pipe; 330. Three-stage emergency relief valve; 4. Water supply device; 40. Water supply tank; 41. Water supply pipe; 5. Forced cooling device; 50. Rotating shaft; 51. Stirring blade; 52. Belt; 53. Drive shaft; 54. Drive bevel gear; 55. Driven bevel gear; 56. Cooling fan blade; 57. Driven shaft; 58. L-shaped fixing bracket; 59. Drive motor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has revealed that, to address the aforementioned energy losses, the industry has begun to recover and utilize the waste heat from high-temperature exhaust gases to some extent in existing technologies. Currently, conventional generator cooling solutions primarily use forced air cooling or liquid cooling to directly release this heat into the atmosphere, which is essentially a huge waste of available energy. This not only makes it difficult to further improve the overall energy efficiency of generator sets, but also necessitates the consumption of additional fuel or electricity to produce hot water in applications requiring hot water (such as domestic hot water and heating), increasing operating costs and carbon emissions. In other words, the cooling systems of existing generator sets have a single function, solely aiming to prevent the engine from overheating, failing to consider the heat dissipation process as a usable energy harvesting process.

[0030] Based on the above research, this disclosure provides a generator set combined heat and power system and a forced cooling device. By setting up a two-stage circulation and a three-stage circulation, the waste heat is maximized to be transferred to the hot water system while ensuring the safe operation of the engine. This improvement not only significantly improves the comprehensive energy utilization rate and reduces the cost of hot water preparation, but also makes the generator set a stable and reliable heat source while providing electricity, realizing combined heat and power supply, and has significant economic and environmental benefits.

[0031] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] In some embodiments, such as Figures 1 to 2 As shown, the self-cooling cycle of generator set 1 is regarded as the first-level cycle. Without external cooling, the engine temperature in generator set 1 quickly reaches above 90 degrees Celsius and continues to accumulate, eventually leading to engine overheating failure. Therefore, a second-level circulation system 2 is introduced. Generator set 1 is connected to the second-level heat exchanger 20 through a pipeline, and a vent valve 10 is installed on the pipeline. When generator set 1 is working normally, the high-temperature water in generator set 1 is introduced into the second-level heat exchanger 20 by the second-level circulating water pump 25, and then enters the radiator tank 22 through the second-level water pipe 21. Synchronously, the drive motor 59 is started, and its output end rotates, driving the belt 52 to rotate, which in turn drives the rotating shaft 50 and several stirring blades 51 fixed on the outer wall of the rotating shaft 50 to rotate, stirring and cooling the high-temperature water entering the cooling water tank 22. During this process, the output end of the drive motor 59 synchronously drives the drive shaft 53 to rotate. Through the meshing of the drive bevel gear 54 and the driven bevel gear 55, the driven shaft 57 and several cooling fan blades 56 fixed on the outer wall of the driven shaft 57 are driven to rotate. The cooling fan blades 56 are used to dissipate heat from the outer wall of the cooling water tank 22, further promoting the cooling of the high-temperature water in the cooling water tank 22. After cooling, the water enters the regulating water tank 24 through the drain pipe 23 inserted at the bottom of the cooling water tank 22. Driven by the secondary circulating water pump 25, the cooled water enters the generator set 1 through the regulating water pipe 27 for heat dissipation.

[0035] In some embodiments, for the three-stage circulation system 3, the three-stage circulating water pump 30 is started, which draws high-temperature water from the secondary heat exchanger 20 through the pipeline and introduces it into the domestic water tank 32 through the tertiary water inlet pipe 31 for storage and domestic use.

[0036] In some embodiments, a temperature sensor and a pressure sensor are installed inside the generator set 1. When the temperature sensor detects that the circulating temperature is below 85 degrees Celsius, the secondary circulating water pump 25 and the tertiary circulating water pump 30 work normally, and the forced cooling device 5 stops working. When the temperature sensor detects that the circulating temperature is above 85 degrees Celsius, the drive motor 59 is started, that is, the forced cooling device 5 starts working. The secondary circulation system 2 has a regulating water tank 24 and a water replenishment device 4 that is matched with the regulating water tank 24. When the high temperature water in the secondary circulation system 2 is pumped away by the tertiary circulating water pump 30, the water in the water replenishment tank 40 is replenished to the secondary circulation system 2 through the water replenishment pipe 41. For the three-stage circulation system 3, after the high-temperature water in the domestic water tank 32 is used, the water in the corresponding water supply tank 40 is replenished into the domestic water tank 32 through the water supply pipe 41, and then introduced into the secondary heat exchanger 20 through the three-stage drain pipe 33, and heated by the secondary circulation system 2, and so on.

[0037] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0039] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0040] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A combined heat and power (CHP) system for a generator set, characterized in that, include: Generator set (1); A two-stage circulation system (2) includes: A secondary heat exchanger (20) is disposed on one side of the generator set (1) and connected to the generator set (1) via a pipeline; The top of the heat exchange tank (22) is connected to the secondary heat exchanger (20) via a secondary water pipe (21); The bottom of the heat dissipation water tank (22) is drained through the drain pipe (23) to guide the cooled water after heat dissipation into the generator set (1); A three-level circulation system (3) includes: The domestic water tank (32) is connected to the secondary heat exchanger (20) via a tertiary inlet pipe (31) and a tertiary outlet pipe (33); wherein The secondary heat exchanger (20) is adapted to introduce heated water into the domestic water tank (32) through the tertiary inlet pipe (31), and the cold water in the domestic water tank (32) is adapted to enter the secondary heat exchanger (20) through the tertiary drain pipe (33).

2. The combined heat and power system for generator sets as described in claim 1, characterized in that, The bottom of the heat dissipation tank (22) is provided with a forced heat dissipation device (5), which includes: A rotating shaft (50) passes through the bottom of the heat dissipation tank (22) and is connected to a bearing on the lower end face of the heat dissipation tank (22); The stirring blades (51) are arranged circumferentially on the outer wall of the rotating shaft (50) along the axis of the rotating shaft (50); and The drive motor (59) is located on one side of the heat sink (22), and the output end of the drive motor (59) is connected to the bottom end of the rotating shaft (50) via a belt (52).

3. The generator set combined heat and power system as described in claim 2, characterized in that, An L-shaped fixing bracket (58) is provided on the outer wall of the heat dissipation tank (22); wherein A drive shaft (53) is provided through the horizontal end of the L-shaped bracket (58), and the bottom end of the drive shaft (53) is connected to the output end of the drive motor (59); and The top end of the drive shaft (53) is provided with a drive bevel gear (54). A driven shaft (57) is provided through the vertical end of the L-shaped fixing bracket (58), and a driven bevel gear (55) is provided on the outer wall of the driven shaft (57); wherein The driven bevel gear (55) meshes with the driving bevel gear (54).

4. The combined heat and power system for generator sets as described in claim 3, characterized in that, The driven shaft (57) has several cooling fan blades (56) arranged circumferentially on the outer wall of the end near the heat sink (22).

5. The combined heat and power system for generator sets as described in claim 4, characterized in that, A regulating water tank (24) is provided on one side of the heat dissipation water tank (22), and the heat dissipation water tank (22) and the regulating water tank (24) are connected by a drain pipe (23); The regulating water tank (24) is connected to the generator set (1) via a regulating water pipe (27); wherein The regulating water pipe (27) is equipped with a secondary circulating water pump (25) and a secondary emergency relief valve (26).

6. The combined heat and power system for generator sets as described in claim 5, characterized in that, The three-stage water inlet pipe (31) is equipped with a three-stage circulating water pump (30), a solenoid valve (310) and a vent valve (311). The three-stage drainage pipe (33) is equipped with a three-stage emergency relief valve (330).

7. The combined heat and power system for generator sets as described in claim 6, characterized in that, Both the domestic water tank (32) and the regulating water tank (24) are equipped with a water replenishment device (4) on one side, and both water replenishment devices (4) include: A water supply tank (40) is provided, and both water supply tanks (40) are connected to the regulating water tank (24) and the domestic water tank (32) via water supply pipes (41); among which Each of the water supply pipes (41) is equipped with a check valve (42).

8. A forced cooling device for a generator set combined heat and power system as described in any one of claims 1-7, characterized in that, include: The rotating shaft (50) passes through the bottom of the heat sink (22) and is connected to the bearing on the lower end face of the heat sink (22); The stirring blades (51) are arranged circumferentially on the outer wall of the rotating shaft (50) along the axis of the rotating shaft (50); and The drive motor (59) is located on one side of the heat sink (22), and the output end of the drive motor (59) is connected to the bottom end of the rotating shaft (50) via a belt (52).

9. The forced cooling device as described in claim 8, characterized in that, An L-shaped fixing bracket (58) is provided on the outer wall of the heat dissipation tank (22); wherein A drive shaft (53) is provided through the horizontal end of the L-shaped bracket (58), and the bottom end of the drive shaft (53) is connected to the output end of the drive motor (59); and The top end of the drive shaft (53) is provided with a drive bevel gear (54). A driven shaft (57) is provided through the vertical end of the L-shaped fixing bracket (58), and a driven bevel gear (55) is provided on the outer wall of the driven shaft (57); wherein The driven bevel gear (55) meshes with the driving bevel gear (54).

10. The forced heat dissipation device as described in claim 9, characterized in that, The driven shaft (57) has several cooling fan blades (56) arranged circumferentially on the outer wall of the end near the heat sink (22).

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