Adsorption type cold electricity and steam combined supply system capable of continuously and stably working

Abstract

The invention discloses an adsorption-type cold electricity steam combined supply system capable of continuously and stably working, relates to the technical field of energy supply, and solves the problems that an existing adsorption-type refrigeration heat source is unstable, and resources consumed for preparing high-temperature steam are large. A first water tank is communicated with first adsorption equipment and second adsorption equipment through two groups of water inlet and outlet pipelines respectively; the water tank II is respectively communicated with the adsorption equipment I and the adsorption equipment II through two groups of water inlet and outlet pipelines; the evaporator is respectively communicated with the adsorption equipment I, the adsorption equipment II and the condenser; the condenser is also respectively communicated with the adsorption equipment I and the adsorption equipment II; the hydrogen fuel battery pack is communicated with the water tank II through a group of water inlet and outlet pipelines; and the condenser is communicated with the high-temperature steam preparation unit. The hydrogen fuel battery pack and the adsorption type refrigerating unit are combined, the hydrogen fuel battery pack forms a primary power generation set and serves as a heat source of the adsorption type refrigerating unit, a stable and continuous heat source is provided for the adsorption type refrigerating unit, and a stable heat source is provided for preparation of high-temperature steam.

Description

Technical Field

[0001] The invention relates to the technical field of energy supply, and in particular to an adsorption-type cooling, electricity and steam cogeneration system that can operate sustainably and stably. Background Art

[0002] Although the traditional adsorption refrigeration is environmentally friendly and energy-saving, it is greatly affected by the heat source during use, which limits its application scenarios and can only be established in places with abundant waste heat resources such as factories. Places with abundant waste heat resources such as factories are far away from residential areas or commercial areas, which leads to huge energy loss when transmitting cold air to the outside, seriously limiting its large-scale promotion and application. In addition, the heat source for producing high-temperature steam is still mainly from the combustion of fossil fuels, which greatly wastes resources and produces excessive carbon emissions.

[0003] At present, the existing methods to solve the above problems are mostly focused on how to reduce the loss of cold energy during cold energy transportation. Although this reduces the loss to a certain extent, the total cost of the equipment also increases. How to deal with the problem of heat source distribution is the best way to solve both high loss and high cost at the same time, but there is currently little research on this aspect. Summary of the invention

[0004] In order to solve the above-mentioned problems of unstable heat source of existing adsorption refrigeration and high resource consumption of producing high-temperature steam, the present invention proposes an adsorption cooling, electricity and steam cogeneration system that can work sustainably and stably. The present invention combines a hydrogen fuel cell group with an adsorption refrigeration unit. The hydrogen fuel cell group forms a primary power generation group and serves as a heat source for the adsorption refrigeration unit, providing a stable and continuous heat source for the adsorption refrigeration unit, solving the stringent requirements of the use scenario and the unstable heat source during the operation of the traditional adsorption refrigeration unit. At the same time, high-temperature steam is prepared by electric drive for food processing and industrial production.

[0005] The present invention proposes an adsorption-type cooling, electricity and steam cogeneration system that can operate sustainably and stably, which specifically includes an evaporator, an adsorption device 1, a condenser, an adsorption device 2, a water tank 1, a water tank 2, a hydrogen fuel cell group and a high-temperature steam preparation unit. The water tank 1 is connected to the adsorption device 1 and the adsorption device 2 through two groups of inlet and outlet water pipes, respectively; the water tank 2 is connected to the adsorption device 1 and the adsorption device 2 through two groups of inlet and outlet water pipes, respectively; the evaporator is connected to the adsorption device 1, the adsorption device 2 and the condenser, respectively; the condenser is also connected to the adsorption device 1 and the adsorption device 2, respectively; the hydrogen fuel cell group is connected to the water tank 2 through a group of inlet and outlet water pipes; the condenser is connected to the high-temperature steam preparation unit.

[0006] Furthermore, the high-temperature steam preparation unit includes a water tank three, a flash tank, a compressor and a steam supply unit, and the water tank three, the flash tank, the compressor and the steam supply unit are connected in sequence; the water tank three is also connected to the condenser.

[0007] Furthermore, a water pump 1 and a valve 1 are provided on the pipeline between the water tank 1 and the adsorption device 1, and the water pump 1 and the valve 1 are connected.

[0008] Furthermore, a water pump 2 and a valve 2 are provided on the pipeline between the water tank 1 and the adsorption device 2, and the water pump 2 and the valve 2 are connected.

[0009] Furthermore, a water pump three and a valve three are arranged on the pipeline between the water tank two and the adsorption device one, and the water pump three and the valve three are connected.

[0010] Furthermore, a water pump four and a valve four are arranged on the pipeline between the water tank two and the adsorption device two, and the water pump four and the valve four are connected.

[0011] Furthermore, a valve five and a water pump five are provided on the pipeline between the hydrogen fuel cell group and the water tank two, and the valve five and the water pump five are connected.

[0012] Furthermore, the compressor is electrically connected to the hydrogen fuel cell stack.

[0013] The beneficial effects of the adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation described in the present invention are as follows:

[0014] (1) The adsorption-type cold-electricity-steam cogeneration system described in the present invention overcomes the problem of unstable heat source of existing adsorption refrigeration units. The hydrogen fuel cell group and the adsorption refrigeration unit are combined. The hydrogen fuel cell group forms a primary power generation group and serves as the heat source of the adsorption refrigeration unit, providing a stable and continuous heat source for the adsorption refrigeration system. At the same time, the adsorption refrigeration unit dissipates heat from the hydrogen fuel cell group. The two complement each other, which can not only provide maximum power generation efficiency, but also output cold capacity stably and are no longer restricted by the use scenario. It solves the stringent requirements of the use scenario and the unstable heat source during the operation of the traditional adsorption refrigeration unit. At the same time, the power output of the system comes from the zero-carbon emission path, which accelerates the process of clean energy system replacing traditional fossil energy and provides a strong foundation for promoting the dual-carbon strategy and energy conservation and emission reduction.

[0015] (2) The adsorption-type cooling, electricity and steam cogeneration system described in the present invention can sustainably and stably operate, thus overcoming the problem of high resource consumption in producing high-temperature steam. The heat released by the condenser is used as a heat source to heat the water in the water tank three, thereby producing high-temperature steam, which effectively reduces resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a structural schematic diagram of an adsorption-type cooling, electricity and steam cogeneration system that can operate sustainably and stably according to the present invention;

[0019] Among them: 1-evaporator, 2-adsorption device 1, 3-condenser, 4-adsorption device 2, 5-water tank 1, 6-water tank 2, 7-hydrogen fuel cell group, 8-water pump 1, 9-water pump 2, 10-water pump 3, 11-water pump 4, 12-water pump 5, 13-valve 1, 14-valve 2, 15-valve 3, 16-valve 4, 17-valve 5, 18-water tank 3, 19-flash tank, 20-compressor, 21-steam supply unit. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Specific implementation method 1: See Figure 1 The present embodiment is specifically described. The adsorption-type cold-electricity-steam cogeneration system described in the present embodiment that can work stably and sustainably specifically includes an evaporator 1, an adsorption device 1 2, a condenser 3, an adsorption device 2 4, a water tank 1 5, a water tank 2 6, a hydrogen fuel cell group 7 and a high-temperature steam preparation unit. The water tank 1 5 is connected to the adsorption device 1 2 through a set of inlet and outlet water pipes, and is connected to the adsorption device 2 4 through another set of inlet and outlet water pipes; the water tank 2 6 is connected to the adsorption device 1 2 through a set of inlet and outlet water pipes, and is connected to the adsorption device 2 4 through another set of inlet and outlet water pipes; the evaporator 1 is connected to the adsorption device 1 2, the adsorption device 2 4 and the condenser 3 respectively, and the water vapor after desorption from the adsorption device 1 2 and the adsorption device 2 4 enters the condenser 3 and the liquid water formed after condensation returns to the evaporator 1 through different pipeline paths; the condenser 3 is also connected to the adsorption device 1 2 and the adsorption device 2 4 respectively; the hydrogen fuel cell group 7 is connected to the water tank 2 6 through a set of inlet and outlet water pipes; the condenser 3 is connected to the high-temperature steam preparation unit, and the high-temperature steam preparation unit uses the heat released when the condenser 3 condenses the water vapor to produce high-temperature steam.

[0025] The high-temperature steam preparation unit includes a water tank three 18, a flash tank 19, a compressor 20 and a steam supply unit 21, and the water tank three 18, the flash tank 19, the compressor 20 and the steam supply unit 21 are connected in sequence; the water tank three 18 is also connected to the condenser 3.

[0026] A water pump 8 and a valve 13 are provided on the pipeline between the water tank 5 and the adsorption device 2. The water pump 8 and the valve 13 are connected. The water tank 5, the adsorption device 2, the water pump 8 and the valve 13 form a primary adsorption unit. After the desorption of the adsorption device 2 is completed, the room temperature water in the water tank 5 enters the adsorption device 2 through the water pump 8 and the valve 13 to cool the adsorption device 2, and then returns to the water tank 5 through the pipeline to restore the adsorption capacity of the adsorption device 2.

[0027] A water pump 29 and a valve 214 are provided on the pipeline between the water tank 15 and the adsorption device 24, and the water pump 29 and the valve 214 are connected. The water tank 15, the adsorption device 24, the water pump 29 and the valve 214 form a two-stage adsorption unit. After the desorption of the adsorption device 24 is completed, the room temperature water in the water tank 15 enters the adsorption device 24 through the water pump 29 and the valve 214 to cool the adsorption device 24, and then returns to the water tank 15 through the pipeline to restore the adsorption capacity of the adsorption device 24.

[0028] A water pump three 10 and a valve three 15 are provided on the pipeline between the water tank two 6 and the adsorption device one 2. The water pump three 10 and the valve three 15 are connected. The water tank two 6, the adsorption device one 2, the water pump three 10 and the valve three 15 form a primary desorption unit. After the adsorption device one 2 completes the adsorption of the water vapor generated by the evaporator 1, the heated hot water in the water tank two 6 enters the adsorption device one 2 via the water pump three 10 and the valve three 15, so that the adsorption device one 2 is desorbed, and then returns to the water tank two 6 through the pipeline.

[0029] A water pump 4 11 and a valve 4 16 are provided on the pipeline between the water tank 2 6 and the adsorption device 2 4. The water pump 4 11 and the valve 4 16 are connected. The water tank 2 6, the adsorption device 2 4, the water pump 4 11 and the valve 4 16 form a two-stage desorption unit. After the adsorption device 2 4 completes the adsorption of the water vapor generated by the evaporator 1, the heated hot water in the water tank 2 6 enters the adsorption device 2 4 through the water pump 4 11 and the valve 4 16, so that the adsorption device 2 4 is desorbed, and then returns to the water tank 2 6 through the pipeline.

[0030] A valve five 17 and a water pump five 12 are provided on the pipeline between the hydrogen fuel cell group 7 and the water tank two 6. The valve five 17 and the water pump five 12 are connected. The hydrogen fuel cell group 7, the water tank two 6, the valve five 17 and the water pump five 12 form a high-temperature heat source unit. Under the action of the water pump five 12, the water in the water tank two 6 enters the hydrogen fuel cell group 7 through the valve five 17 for heat exchange, and then flows back to the water tank two 6.

[0031] The compressor 20 is electrically connected to the hydrogen fuel cell group 7 , and the electric energy required for the compressor 20 to work is provided by the hydrogen fuel cell group 7 .

[0032] The specific working process of the adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to the present invention is as follows:

[0033] During operation, under the action of water pump 5 12, water in water tank 2 6 enters hydrogen fuel cell group 7 through valve 5 17 for heat exchange, and then flows back to water tank 2 6; water in evaporator 1 absorbs heat from the environment and evaporates into gaseous state, gaseous water enters adsorption device 1 2, and is adsorbed by adsorption device 1 2. After adsorption is completed, valve 3 15 is opened, and under the drive of water pump 3 10, the heated water in water tank 2 6 enters adsorption device 1 2 from water tank 2 6, releases heat, and desorbs adsorption device 1 2. The released water vapor enters condenser 3 for condensation, and gaseous water becomes liquid water in condenser 3 and returns to evaporator 1 through the pipeline indicated by the solid line on the right side of condenser 3, completing a refrigeration cycle. After desorption of adsorption device 1 2 is completed, valve 13 is opened, and under the drive of water pump 1 8, normal temperature water in water tank 1 5 enters adsorption device 1 2 to cool it, so that adsorption device 1 2 regains adsorption capacity. After cooling is completed, adsorption continues, and the cycle repeats.

[0034] When the adsorption device 1 2 is desorbing, the adsorption device 2 4 adsorbs the water vapor generated in the evaporator 1, and the water vapor enters the adsorption device 2 4 through the pipe indicated by the dotted line; after the adsorption is completed, the valve 4 16 is opened, and the heated water in the water tank 2 6 enters the adsorption device 2 4 from the water tank 2 6 under the action of the water pump 4 11, releasing heat, so that the adsorption device 2 4 is desorbed, and the released water vapor enters the condenser 3 from the adsorption device 2 4 through the pipe indicated by the dotted line to be condensed, and the gaseous water is converted into liquid water in the condenser 3 and returns to the evaporator 1 through the pipe indicated by the dotted line on the right side of the condenser 3, completing a refrigeration cycle. After the desorption of the adsorption device 2 4 is completed, the valve 2 14 is opened, and the normal temperature water in the water tank 1 5 enters the adsorption device 2 4 under the drive of the water pump 2 9 to cool it, so that the adsorption device 2 4 regains the adsorption capacity, and after the cooling is completed, the adsorption continues, and the cycle is repeated.

[0035] When the adsorption device 1 2 is performing the adsorption process, the adsorption device 2 2 is performing the desorption process, and the two processes are performed alternately.

[0036] The condenser 3 releases heat to the water tank 3 18, and the water in the water tank 3 18 absorbs heat and then heats up, then enters the flash tank 19 to evaporate into water vapor, and then is compressed into higher temperature water vapor by the compressor 20, and finally enters the steam supply unit 21 for food processing and industrial production. The electric energy of the compressor 20 is provided by the hydrogen fuel cell group 7.

[0037] To summarize the above implementation cases, the adsorption-type cold-electricity-steam cogeneration system described in the present invention overcomes the problem of unstable heat source of existing adsorption refrigeration units, combines the hydrogen fuel cell group 7 with the adsorption refrigeration unit, and the hydrogen fuel cell group 7 forms a primary power generation group and serves as the heat source of the adsorption refrigeration unit, providing a stable and continuous heat source for the adsorption refrigeration system. At the same time, the adsorption refrigeration unit dissipates heat from the hydrogen fuel cell group 7, and the two complement each other, which can not only provide maximum power generation efficiency, but also output cold capacity stably, and are no longer restricted by the use scenario; the stringent requirements of the use scenario and the unstable heat source of the traditional adsorption refrigeration unit during operation are solved, and the power output of the system comes from the zero-carbon emission approach, which accelerates the process of clean energy systems replacing traditional fossil energy, and provides a strong foundation for promoting the dual-carbon strategy and energy conservation and emission reduction; the adsorption-type cold-electricity-steam cogeneration system described in the present invention overcomes the problem of large resource consumption in the production of high-temperature steam, and uses the heat released by the condenser 3 as a heat source to heat the water in the water tank 3 18, thereby producing high-temperature steam, effectively reducing resource consumption.

[0038] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the invention. It can also be a reasonable combination of the features recorded in the above implementation methods. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adsorption-type cooling, electricity and steam cogeneration system capable of continuous and stable operation, characterized in that: The invention comprises an evaporator (1), an adsorption device 1 (2), a condenser (3), an adsorption device 2 (4), a water tank 1 (5), a water tank 2 (6), a hydrogen fuel cell group (7) and a high-temperature steam preparation unit. The water tank 1 (5) is connected to the adsorption device 1 (2) and the adsorption device 2 (4) through two groups of water inlet and outlet pipes respectively; the water tank 2 (6) is connected to the adsorption device 1 (2) and the adsorption device 2 (4) through two groups of water inlet and outlet pipes respectively; the evaporator (1) is connected to the adsorption device 1 (2), the adsorption device 2 (4) and the condenser (3) respectively; the condenser (3) is also connected to the adsorption device 1 (2) and the adsorption device 2 (4) respectively; the hydrogen fuel cell group (7) is connected to the water tank 2 (6) through one group of water inlet and outlet pipes; and the condenser (3) is connected to the high-temperature steam preparation unit.

2. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 1 is characterized in that: The high-temperature steam preparation unit comprises a water tank three (18), a flash tank (19), a compressor (20) and a steam supply unit (21); the water tank three (18), the flash tank (19), the compressor (20) and the steam supply unit (21) are connected in sequence; the water tank three (18) is also connected to the condenser (3).

3. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 is characterized in that: A water pump (8) and a valve (13) are provided on the pipeline between the water tank (5) and the adsorption device (2), and the water pump (8) and the valve (13) are connected.

4. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 is characterized in that: A water pump 2 (9) and a valve 2 (14) are arranged on the pipeline between the water tank 1 (5) and the adsorption device 2 (4), and the water pump 2 (9) and the valve 2 (14) are in communication.

5. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 is characterized in that: A water pump three (10) and a valve three (15) are arranged on the pipeline between the water tank two (6) and the adsorption device one (2), and the water pump three (10) and the valve three (15) are connected.

6. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 is characterized in that: A water pump four (11) and a valve four (16) are arranged on the pipeline between the water tank two (6) and the adsorption device two (4), and the water pump four (11) and the valve four (16) are connected.

7. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 is characterized in that: A valve five (17) and a water pump five (12) are provided on the pipeline between the hydrogen fuel cell group (7) and the water tank two (6), and the valve five (17) and the water pump five (12) are connected.

8. The adsorption-type cooling, electricity and steam cogeneration system capable of sustainable and stable operation according to claim 2 or 7, characterized in that: The compressor (20) is electrically connected to the hydrogen fuel cell stack (7).

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