Solar multi-energy coupling phase change energy storage steam system

Abstract

The utility model discloses a solar multi-energy coupling phase change energy storage steam system which comprises a solar heat collector, the solar heat collector is connected with a first circulating pump, the first circulating pump is connected with a low-temperature water tank, the low-temperature water tank is connected with a second circulating pump, the second circulating pump is connected with a high-temperature heat pump, and the high-temperature heat pump is connected with a steam generator. The high-temperature heat pump is connected with a third circulating pump, the third circulating pump is connected with a high-temperature water tank, the high-temperature water tank is connected with a fourth water pump, the fourth water pump is connected with a phase change heat storage device, the phase change heat storage device is connected with a flash tank, the flash tank is connected with a steam-water separation tank, and the flash tank is connected with a fifth water pump. According to the energy storage steam system, the energy utilization efficiency and the economic benefit of the energy storage steam system are improved, the flexibility and the reliability of the system are enhanced, and an efficient, environment-friendly and economical steam supply solution is provided for industries such as chemical engineering, electroplating and food processing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steam production technical field, concretely relates to a solar energy multi-energy coupling phase change energy storage steam system. BACKGROUND

[0002] At present, energy storage steam system has been widely applied in chemical industry, electroplating, food processing, drying, textile, brewing and other industries. The system mainly realizes the production of steam through electric heat conversion, and adopts heat storage technology or electric boiler combined with heat storage mode to meet the production demand. However, this energy utilization mode has certain limitations, mainly in that the energy source is relatively single, resulting in low overall efficiency of the system, insufficient flexibility and relatively high production cost. INVENTION CONTENTS

[0003] The utility model solves the technical problems of the prior art, provides multi-energy coupling of energy storage steam system, reduces steam production cost, improves system operation efficiency, increases flexibility and reliability.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a solar energy multi-energy coupling phase change energy storage steam system, including a solar energy collector, the solar energy collector is connected with the first circulating pump, the first circulating pump is connected with the low temperature water tank, the low temperature water tank is connected with the second circulating pump, the second circulating pump is connected with the high temperature heat pump, the high temperature heat pump is connected with the third circulating pump, the third circulating pump is connected with the high temperature water tank, the high temperature water tank is connected with the fourth water pump, the fourth water pump is connected with the phase change heat storage device, the phase change heat storage device is connected with the flash tank, the flash tank is connected with the steam-water separation tank, the flash tank is connected with the fifth water pump, the fifth water pump is connected with the high temperature water tank, and the steam-water separation tank is connected with the electric regulating valve group.

[0005] Preferably, the solar energy collector is connected with the low temperature water tank by the first circulating pump through a pipeline, and contains a corresponding valve, the solar energy collector adopts a vacuum tube metal runner type collector, and the low temperature water tank contains a heat exchange coil.

[0006] Preferably, the low temperature water tank is connected with the high temperature heat pump through the second circulating pump by a pipeline, and contains a corresponding valve.

[0007] Preferably, the high temperature water tank is connected with the high temperature heat pump through the third circulating pump by a pipeline, and contains a corresponding valve, and the high temperature water tank contains a heat exchange coil.

[0008] Preferably, the high temperature water tank is connected with the phase change heat storage device through the fourth water pump by a pipeline, and contains a corresponding valve, the phase change heat storage device is an integrated heating type heat storage module, the heat storage material is a high temperature heat storage material, and the heater is inserted into the heat storage material.

[0009] Preferably, the phase change heat storage device is connected to the flash tank through a pipeline, and a corresponding valve is arranged.

[0010] Preferably, the flash tank is connected to the steam-water separation tank through a pipeline, and a corresponding valve is arranged.

[0011] Preferably, the steam-water separation tank is connected to the electric regulating valve group through a pipeline, and a corresponding valve is arranged, and the electric regulating valve group comprises an electric regulating valve and a steam trap.

[0012] Compared with the prior art, the solar multi-energy coupling phase change energy storage steam system has the following beneficial effects:

[0013] The solar energy collector is integrated, the coupling utilization of solar energy and other energy is realized, the singleness of energy sources is effectively reduced, the diversity of energy utilization and the stability of system operation are improved, the solar energy collector and high-temperature heat pump technology are utilized, the heat energy conversion efficiency is improved, the electric energy consumption is reduced, and therefore the operation efficiency of the entire energy storage steam system is improved, the dependence on traditional electric power is reduced, the steam production cost is reduced, the market competitiveness of enterprises is enhanced, the system design comprises multiple circulating pumps and water tanks, the pipeline and the valve are reasonably configured, the steam supply can be flexibly adjusted according to production requirements, the adaptability and reliability of the system are improved, the phase change heat storage device is adopted, heat can be stably stored and released in different time periods, the continuity and stability of steam supply are ensured, the influence of energy fluctuation on production is reduced, the heat exchange coil pipes in the low-temperature water tank and the high-temperature water tank and the design of the integrated heating type heat storage module optimize the heat energy collection, storage and utilization process, improve the efficiency of heat energy management, renewable energy solar energy is utilized, the dependence on fossil energy is reduced, greenhouse gas emission is reduced, and the development concept of green environmental protection is met. In conclusion, the solar multi-energy coupling phase change energy storage steam system not only improves the energy utilization efficiency and economic benefit of the energy storage steam system, but also enhances the flexibility and reliability of the system, and provides an efficient, environmentally-friendly and economical steam supply solution for the chemical industry, electroplating, food processing and other industries. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are intended to provide a further understanding of the present application and constitute a part of the specification, together with the embodiments of the present application, to explain the present application and do not constitute a limitation to the present application, and in the drawings:

[0015] Figure 1 The structure schematic view of the present application is provided.

[0016] In the figure: 1, solar collector; 2, first circulating pump; 3, low-temperature water tank; 4, second circulating pump; 5, high-temperature heat pump; 6, third circulating pump; 7, high-temperature water tank; 8, fourth water pump; 9, phase change heat storage device; 10, fifth water pump; 11, flash tank; 12, steam-water separation tank; 13, electric regulating valve group. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figure 1 The utility model provides a kind of technical scheme: a solar energy multi-energy coupling phase change energy storage steam system, including solar collector 1, solar collector 1 is connected with first circulating pump 2, realizes the direct collection and conversion of solar energy, improves the self-sufficiency of energy utilization, first circulating pump 2 is connected with low-temperature water tank 3, heat is transmitted by pipeline, reduces heat loss, low-temperature water tank 3 is connected with second circulating pump 4, ensure the uniform distribution and efficient transmission of heat energy, second circulating pump 4 is connected with high-temperature heat pump 5, promote the temperature level of heat energy, improve heat energy utilization efficiency, high-temperature heat pump 5 is connected with third circulating pump 6, further enhance the recycling of heat energy, third circulating pump 6 is connected with high-temperature water tank 7, provides stable high-temperature heat source for system, high-temperature water tank 7 is connected with fourth water pump 8, realizes the storage and regulation of high-temperature heat energy, fourth water pump 8 is connected with phase change heat storage device 9, utilizes the efficient heat storage characteristics of phase change material, prolongs the storage time of heat energy, phase change heat storage device 9 is connected with flash tank 11, improves the stability and continuity of steam generation by phase change heat storage technology, flash tank 11 is connected with steam-water separation tank 12, realizes the effective separation of steam and water, guarantees the quality of steam, flash tank 11 is connected with fifth water pump 10, forms closed heat energy circulation system, improves heat energy utilization rate, fifth water pump 10 is connected with high-temperature water tank 7, ensure the continuity of heat energy circulation and the reliability of system, steam-water separation tank 12 is connected with electric regulating valve group 13, accurately control the flow and pressure of steam by electric regulating valve group 13, improve the degree of automation and operation flexibility of system.

[0019] The utility model discloses, preferably, solar collector 1 is connected with low temperature water tank 3 through pipeline by first circulating pump 2, contains corresponding valve, enhances the leakproofness and the adjustment ability of system, and solar collector 1 adopts vacuum tube metal runner type collector, improves the heat collecting efficiency, reduces heat loss, and low temperature water tank 3 contains heat exchange coil pipe, improves heat exchange efficiency, reduces energy consumption, and low temperature water tank 3 is connected with high temperature heat pump 5 through pipeline by second circulating pump 4, contains corresponding valve, and such configuration optimizes the flow path of heat energy, reduces system resistance, and high temperature water tank 7 is connected with high temperature heat pump 5 through pipeline by third circulating pump 6, contains corresponding valve, and high temperature water tank 7 contains heat exchange coil pipe, improves the utilization of heat energy and the heat stability of system, and high temperature water tank 7 is connected with phase change heat storage device 9 through pipeline by fourth water pump 8, contains corresponding valve, and phase change heat storage device 9 is integrated heating type heat storage module, and heat storage material is high temperature heat storage material, and heater inserts into heat storage material, and greatly improves heat storage density and heat energy release speed, and phase change heat storage device 9 is connected with flash tank 11 general pipeline, contains corresponding valve, simplifies system structure, reduces cost, and flash tank 11 is connected with steam water separation tank 12 general pipeline, contains corresponding valve, ensures the purity of steam and the safety of system, and steam water separation tank 12 is connected with electric regulating valve group 13 general pipeline, contains corresponding valve, and electric regulating valve group 13 includes electric regulating valve, trap, and such configuration improves the automatic control and protection ability of system.

[0020] The utility model discloses a working principle and use flow:

[0021] Solar collector 1 absorbs sunlight energy, converts it into heat energy, and transmits it to low temperature water tank 3 through first circulating pump 2, and the heat energy in low temperature water tank 3 is transmitted to high temperature heat pump 5 through second circulating pump 4, high temperature heat pump 5 raises the heat energy to a higher temperature, and then transmits it to high temperature water tank 7 through third circulating pump 6, and the heat energy in high temperature water tank 7 is transmitted to phase change heat storage device 9 through fourth water pump 8, phase change heat storage device 9 stores heat energy by using phase change material, realizes long-time storage of heat energy, when steam is needed, phase change heat storage device 9 releases the stored heat energy, and connects to flash tank 11 through pipeline, generates steam, and the steam generated by flash tank 11 enters steam water separation tank 12, separates dry steam, and accurately controls the flow and pressure through electric regulating valve group 13;

[0022] In use, the solar collector 1 is turned on to start absorbing solar energy and converting it into heat energy, the first circulating pump 2 is started to transmit the heat energy generated by the solar collector 1 to the low-temperature water tank 3, and then the second circulating pump 4 is started to transmit the heat energy to the high-temperature heat pump 5, the high-temperature heat pump 5 and the third circulating pump 6 are started to store the heat energy into the high-temperature water tank 7 after being lifted, and then the fourth water pump 8 is started to transmit the heat energy to the phase change heat storage device 9 for storage, when steam is needed, the heater of the phase change heat storage device 9 is started to release heat energy to the flash tank 11 to generate steam, the steam enters the steam-water separation tank 12 through the flash tank 11, dry steam is separated out, and then the dry steam is supplied to the production process after being adjusted through the electric regulating valve group 13, after the steam supply is completed, the relevant circulating pumps and heat pumps are turned off, and the work of the solar collector 1 is stopped, and a complete steam production cycle is completed.

[0023] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A solar multi-energy coupling phase change energy storage steam system comprising a solar heat collector (1), characterized in that: The solar collector (1) is connected with the first circulating pump (2), the first circulating pump (2) is connected with the low-temperature water tank (3), the low-temperature water tank (3) is connected with the second circulating pump (4), the second circulating pump (4) is connected with the high-temperature heat pump (5), the high-temperature heat pump (5) is connected with the third circulating pump (6), the third circulating pump (6) is connected with the high-temperature water tank (7), the high-temperature water tank (7) is connected with the fourth water pump (8), the fourth water pump (8) is connected with the phase change heat storage device (9), the phase change heat storage device (9) is connected with the flash tank (11), the flash tank (11) is connected with the steam-water separation tank (12), the flash tank (11) is connected with the fifth water pump (10), the fifth water pump (10) is connected with the high-temperature water tank (7), and the steam-water separation tank (12) is connected with the electric regulating valve group (13).

2. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The solar collector (1) is connected with the low-temperature water tank (3) through the first circulating pump (2) by pipeline, and contains corresponding valves.

3. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The low-temperature water tank (3) is connected with the high-temperature heat pump (5) through the second circulating pump (4) by pipeline, and contains corresponding valves.

4. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The high-temperature water tank (7) is connected with the high-temperature heat pump (5) through the third circulating pump (6) by pipeline, and contains corresponding valves.

5. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The high-temperature water tank (7) is connected with the phase change heat storage device (9) through the fourth water pump (8) by pipeline, and contains corresponding valves.

6. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The phase change heat storage device (9) is connected with the flash tank (11) by pipeline, and contains corresponding valves.

7. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The flash tank (11) is connected with the steam-water separation tank (12) by pipeline, and contains corresponding valves.

8. The solar multi-energy coupling phase change energy storage steam system according to claim 1, characterized in that: The steam-water separation tank (12) is connected with the electric regulating valve group (13) by pipeline, and contains corresponding valves. The electric regulating valve group (13) includes an electric regulating valve and a steam trap.

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