Steam and waste heat circulating system

Abstract

The invention provides a steam and waste heat circulation system, relates to the technical field of heat supply equipment, and aims to solve the problems that at the present stage, steam generated by a power plant is only used for heat supply and heat exchange, and after steam produced by a production unit is used, a large part of waste heat still cannot be utilized, and resources are wasted to a certain extent. The invention provides a steam and waste heat circulation system. The steam and waste heat circulation system comprises a steam production unit, a first steam utilization unit, an integration unit, a heating unit and a heat utilization unit. The output end of the steam production unit is respectively communicated with the heat utilization unit and the first steam utilization unit, the output end of the first steam utilization unit is communicated with the integration unit, the integration unit is communicated with the heating unit, and the output end of the heating unit is communicated with the backflow end of the steam production unit.

Description

Technical Field

[0001] This invention relates to the field of heating equipment technology, and in particular to a steam and waste heat recycling system. Background Technology

[0002] Currently, northern cities rely primarily on low-pressure steam from thermal power plants for winter heating, using steam-water heat exchange to heat the heating network. However, there are also industrial enterprises near these power plants that use steam generated by fuel-fired boilers. Consequently, these enterprises release significant amounts of waste heat during their production processes. Waste heat extraction technology can convert this waste heat into heat for the power plant, replacing an equivalent amount of heating steam.

[0003] Steam from power plants, as a high-quality energy source, is currently only used for heating the heating network, which is a huge waste from an energy utilization perspective. Furthermore, most production enterprises around power plants still need to consume large amounts of primary energy sources such as coal and natural gas for production, resulting in significant resource waste. These surrounding production enterprises also directly release large amounts of waste heat during their production processes, further contributing to resource waste.

[0004] Therefore, there is an urgent need to provide a steam and waste heat recycling system to address the problems existing in the current technology to some extent. Summary of the Invention

[0005] The purpose of this invention is to provide a steam and waste heat recycling system to solve, to some extent, the problem that the steam generated by power plants is only used for heating and heat exchange, and that the waste heat generated by production units cannot be utilized, resulting in resource waste.

[0006] The present invention provides a steam and waste heat recycling system, comprising a steam production unit, a first steam consumption unit, an integration unit, a heating unit, and a heat consumption unit; the output end of the steam production unit is connected to the heat consumption unit and the first steam consumption unit respectively, the output end of the first steam consumption unit is connected to the integration unit, the integration unit is connected to the heating unit, and the output end of the heating unit is connected to the return end of the steam production unit.

[0007] The steam and waste heat recycling system provided in this application also includes a pressure boosting unit, wherein the steam production unit is connected to the pressure boosting unit, and the output end of the pressure boosting unit is connected to the first steam-using unit.

[0008] Specifically, the steam and waste heat circulation system provided in this application further includes a first heat pump, the output end of the steam production unit is connected to the first inlet of the first heat pump, the first outlet of the first heat pump is connected to the integration unit, the heating unit is connected to the second inlet of the first heat pump, and the second outlet of the first heat pump is connected to the heating unit.

[0009] Furthermore, the steam and waste heat circulation system provided in this application also includes an electric heat pump, wherein the first outlet of the first heat pump is connected to the first interface of the electric heat pump, the second interface of the electric heat pump is connected to the integrated unit, and the third interface of the electric heat pump is connected to the input end of the heating unit.

[0010] Furthermore, the steam and waste heat recycling system provided in this application also includes a second heat pump, wherein the booster unit is connected to the second heat pump and the first steam-using unit respectively, and the output end of the second heat pump is connected to the integration unit; the second heat pump and the steam-using unit are bidirectionally connected.

[0011] The steam and waste heat recycling system provided in this application further includes a second steam-using unit, which is disposed between the booster unit and the second heat pump.

[0012] Specifically, the steam and waste heat circulation system provided in this application further includes a heat exhaust extraction unit, wherein the output end of the first heat pump is connected to the heat exhaust extraction unit and the integration unit respectively, and the output end of the heat exhaust extraction unit is connected to the heating unit.

[0013] Furthermore, the steam and waste heat recycling system provided in this application also includes a refrigeration unit and a cooling unit; the refrigeration unit is bidirectionally connected to the integrated unit, and the cooling unit is bidirectionally connected to the refrigeration unit.

[0014] Furthermore, both the first heat pump and the second heat pump are absorption heat pumps.

[0015] Furthermore, the booster unit includes a centrifugal compressor, an ejector, or a perforated suction device.

[0016] Compared with existing technologies, the steam and waste heat recycling system provided by this invention has the following advantages: The steam and waste heat recycling system provided by the present invention includes a steam production unit, a first steam consumption unit, an integration unit, a heating unit, and a heat consumption unit; the output end of the steam production unit is connected to the heat consumption unit and the first steam consumption unit respectively, the output end of the first steam consumption unit is connected to the integration unit, the integration unit is connected to the heating unit, and the output end of the heating unit is connected to the return end of the steam production unit.

[0017] As can be seen from the analysis, by connecting the output end of the steam production unit to the heat-using unit and the first steam-using unit respectively, this application can, on the one hand, utilize part of the hot steam from the steam production unit to achieve heat exchange with the heat-using unit's required heating medium, and on the other hand, directly supply the other part of the hot steam to the first steam-using unit to meet its steam demand.

[0018] In this application, the steam production unit is a thermal power plant (thermal or nuclear power plant). During winter, the heating medium required by the heat-consuming unit is water. Therefore, the aforementioned heat-consuming unit is a heat user requiring heating in winter. By exchanging heat between a portion of the hot steam and water, the water can reach a heating temperature, thus providing heating for the heat user. Furthermore, by supplying another portion of the hot steam to the first steam-consuming unit, the first steam-consuming unit does not need to design a separate steam production device to meet its steam demand, nor does it need to rely entirely on a separate steam production device for steam production. It can utilize a portion of the hot steam output from the thermal power plant, with a separate steam production device used to supplement the missing steam. This allows for the multiple utilization of the thermal power plant's energy, reducing energy waste, and also reduces the cost of steam production in the first steam-consuming unit to some extent.

[0019] It is understood that by connecting the first steam-using unit to the integration unit, this application can integrate the necessary condensing and cooling heat output by the first steam-using unit. In actual operation, the first steam-using unit includes various enterprises, and the output heat may be low-pressure steam, air cooler, water cooler, cooling circulating water, waste heat in flue gas, etc. By further designing an integration unit downstream of the first steam-using unit, this application can integrate the heat carried by different media, thereby improving the absorption capacity of the circulation system of this application for the condensing and cooling heat that must be discharged by the first steam-using unit to a certain extent.

[0020] Furthermore, this application adds a heating unit between the integration unit and the steam production unit, which can draw the integrated heat from the steam production unit to the heating unit and use the high-temperature water output from the integration unit for direct heat exchange heating. This allows the water returning to the steam production unit to be heated, and the heated water can participate in heat exchange with the heating medium of the heat-using unit, thereby replacing the steam of equal heat for supply to the first steam-using unit.

[0021] Of course, the heat exchange medium of the heating unit added in this application is water. After the heating unit performs direct heating and heat exchange, it flows into the subsequent heat pump unit to provide a low-temperature heat source for the heat pump, further reducing the temperature, so that the heat discharged from the integrated unit can be more fully immersed into the heat-using unit, replacing more heating steam, realizing the multiple use of heat and reducing energy waste. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A layout diagram of the basic mode of the steam and waste heat recycling system provided in the embodiments of the present invention; Figure 2 This is an overall layout diagram of the steam and waste heat recycling system provided in an embodiment of the present invention; Figure 3 A layout diagram of a third embodiment of the steam and waste heat recycling system provided in this invention; Figure 4 A layout diagram of a fourth embodiment of the steam and waste heat recycling system provided in this invention; Figure 5 A layout diagram of a fifth embodiment of the steam and waste heat recycling system provided in this invention; Figure 6 A layout diagram of a sixth embodiment of the steam and waste heat recycling system provided in this invention; Figure 7 This is a layout diagram of the seventh embodiment of the steam and waste heat recycling system provided in this invention.

[0024] In the diagram: 1-Steam production unit; 2-Pressure boosting unit; 3-First steam consumption unit; 4-Integration unit; 5-Heating unit; 6-First heat pump; 7-Electric heat pump; 8-Second heat pump; 9-Second steam consumption unit; 10-Heat exhaust extraction unit; 11-Heat consumption unit; 12-Refrigeration unit; 13-Cooling unit. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 invention based on the specific circumstances.

[0029] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0030] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0031] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0032] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0033] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0034] like Figures 1-6 As shown, the present invention provides a steam and waste heat recycling system, including a steam production unit 1, a first steam consumption unit 3, an integration unit 4, a heating unit 5, and a heat consumption unit 11; the output end of the steam production unit 1 is connected to the heat consumption unit 11 and the first steam consumption unit 3 respectively, the output end of the first steam consumption unit 3 is connected to the integration unit 4, the integration unit 4 is connected to the heating unit 5, and the output end of the heating unit 5 is connected to the return end of the steam production unit 1.

[0035] Compared with existing technologies, the steam and waste heat recycling system provided by this invention has the following advantages: The steam and waste heat recycling system provided by the present invention, under the premise of ensuring that the original heat supply of the thermal power plant is not reduced, connects the output end of the steam production unit 1 to the heat use unit 11 and the first steam use unit 3 respectively. On the one hand, it can use part of the steam from the steam production unit 1 to achieve heat exchange with the heat use unit 11. On the other hand, the other part of the hot steam can be directly supplied to the first steam use unit 3 to meet the steam use demand of the first steam use unit 3.

[0036] In this application, steam production unit 1 is a thermal power plant. In winter, the heating medium required by heat-using unit 11 is water. That is, the aforementioned heat-using unit 11 is a heat user that needs heating in winter. By exchanging heat with some of the hot steam, the water can reach the heating temperature, thereby providing heating for the heat user. By supplying another portion of the hot steam to the first steam-using unit 3, the first steam-using unit 3 does not need to design a separate steam production equipment to meet its steam demand or does not need to rely entirely on a separate steam production equipment for steam production. It can also use a portion of the hot steam output from the thermal power plant, while the separate steam production equipment is used to supplement the missing steam. Thus, it can both utilize the steam from the thermal power plant and provide production steam for the first steam-using unit 3.

[0037] It is understood that by connecting the first steam-using unit 3 to the integration unit 4, this application can integrate the heat that must be condensed and cooled by the first steam-using unit 3. In fact, since the first steam-using unit 3 includes various enterprises in actual operation, the output medium may be low-pressure steam, air cooler, water cooler, cooling circulating water, waste heat in flue gas, etc. By further designing the integration unit 4 downstream of the first steam-using unit 3, this application can integrate the heat carried by different media, thereby providing the heating unit 3 with no less than the heat contained in the steam delivered by the power plant to the first steam-using unit 3.

[0038] Furthermore, this application adds a heating unit 5 between the integration unit 4 and the steam production unit 1, which can lead the low-temperature water in the steam production unit 1 to the heating unit 5 and use the high-temperature water output from the integration unit 4 for heat exchange and heating. This allows the water flowing back to the steam production unit 1 to be heated, and the heated water can still participate in heat exchange with the heating steam of the heat-using unit 11 to reach the set temperature, thus replacing part of the steam demand of the heat-using unit 11 and releasing a portion of the steam to increase the supply to the first steam-using unit 3.

[0039] Of course, the heat exchange medium of the heating unit 5 added in this application is water. After the heating unit 5 performs heat exchange and cooling, it flows into the integration unit 4 to continue heat exchange and heating, so as to achieve the purpose of heating the heat discharged by the first steam unit 3 to heat the heat supply return water in the heating unit 5.

[0040] Based on the above structure, such as Figures 1-6 As shown, the steam and waste heat recycling system provided in this application further includes a booster unit 2, the steam production unit 1 is connected to the booster unit 2, and the output end of the booster unit 2 is connected to the first steam-using unit 3.

[0041] Since the steam produced by the steam production unit 1 is mainly low-grade steam, i.e. low-pressure steam, while most of the first steam-consuming units 3 require higher steam pressure, the added pressure boosting unit 2 can increase the pressure of the low-pressure steam to high-pressure steam, thereby meeting the steam demand of the first steam-consuming units 3.

[0042] The boosting unit 2 in this application includes a centrifugal compressor, an ejector, or a perforated suction device. The centrifugal compressor, ejector, and perforated suction device are all existing devices for steam boosting.

[0043] Optionally, such as Figure 2As shown, the steam and waste heat circulation system provided in this application also includes a first heat pump 6. The output end of the steam production unit 1 is connected to the first inlet of the first heat pump 6, the first outlet of the first heat pump 6 is connected to the integration unit 4, the heating unit 5 is connected to the second inlet of the first heat pump 6, and the second outlet of the first heat pump 6 is connected to the heating unit 5.

[0044] The water output from the integration unit 4 to the heating unit 5 undergoes heat exchange in the heating unit 5 and then flows back to the integration unit 4 for further heat exchange. However, the heat exchange process within the heating unit 5, where the temperature is lower than the return water temperature, cannot be directly heated. Therefore, if... Figure 2 As shown, this application further includes a first heat pump 6. Water output from the integration unit 4 to the heating unit 5 undergoes one heat exchange before entering the first heat pump 6 for further heat exchange, thereby extracting more heat and lowering the temperature of the returning water. Correspondingly, the first heat pump 6 can output more heat to the heating unit 5, fully utilizing the low-temperature waste heat in the integration device that cannot be directly heated.

[0045] Optionally, such as Figure 3 As shown, the steam and waste heat circulation system provided in this application also includes an electric heat pump 7. The first outlet of the first heat pump 6 is connected to the first interface of the electric heat pump 7, the second interface of the electric heat pump 7 is connected to the integrated unit 4, and the third interface of the electric heat pump 7 is connected to the input end of the heating unit 5.

[0046] By further adding an electric heat pump 7 between the first heat pump 6 and the integration unit 4, the heat contained in the water output by the first heat pump 6 can be extracted. The water flowing from the electric heat pump 7 to the first heat pump 6 can be from the same water source as the first heat pump 6. That is, the same water source supplies water to both the first heat pump 6 and the electric heat pump 7, providing a low-temperature heat source for the heat pump. The electric heat pump 7 can make more in-depth use of the heat in the return integration unit 4.

[0047] It should be further noted that in this application, the first heat pump 6 uses the steam output from the steam production unit 1 as a driving source, thereby enabling the stable operation of the first heat pump 6. The addition of the first heat pump 6 ensures the heat of the water supplied to the steam production unit 1 is returned, thus eliminating the need for excessive hot steam to participate in the heat exchange in the heat-using unit 11, saving more steam that is exported to the first steam-using unit 3.

[0048] In some implementations, such as Figure 4 As shown, the steam and waste heat circulation system provided in this application also includes a second heat pump 8, a booster unit 2 connected to the second heat pump 8 and the first steam-using unit 3 respectively, and the output end of the second heat pump 8 connected to the integration unit 4; the second heat pump 8 is bidirectionally connected to the steam-using unit.

[0049] A portion of the high-pressure steam output from the booster unit 2 is input to the second heat pump 8, thus serving as its driving source. However, during actual operation, the temperature of some of the medium output from the first steam-using unit 3 may be relatively low, resulting in less heat exchange within the integrated system and impacting the overall efficiency of the cycle system. Therefore, this application, through the addition of a second heat pump 8, enables heat exchange with the first steam-using unit 3, raising the temperature of the medium output from the first steam-using unit 3 and increasing the available heat.

[0050] Optionally, such as Figure 5 As shown, the steam and waste heat circulation system provided in this application also includes a second steam consumption unit 9, which is disposed between the booster unit 2 and the second heat pump 8.

[0051] The second steam-using unit 9 in this application is a back-pressure turbine kinetic energy device, such as a water pump or other device driven by high-pressure steam. After passing through the second steam-using unit 9, the high-temperature and high-pressure steam can be converted into low-temperature and low-pressure steam, which can then serve as the driving source for the second heat pump 8 to drive its stable operation. This not only allows the kinetic energy of the high-temperature and high-pressure steam to be utilized, but also ensures that the driving source of the second heat pump 8 is compatible with its own parameters.

[0052] It should be noted that both the first heat pump 6 and the second heat pump 8 in this application are absorption heat pumps, and their purpose is to convert the low-temperature heat that cannot be directly heated by the steam production enterprise into a heat source for heating the return water.

[0053] Optionally, such as Figure 6 As shown, the steam and waste heat circulation system provided in this application also includes a heat exhaust extraction unit 10. The output end of the first heat pump 6 is connected to the heat exhaust extraction unit 10 and the integration unit 4 respectively, and the output end of the heat exhaust extraction unit 10 is connected to the heating unit 5.

[0054] Since there may be other heat-dissipating production enterprises within the system, this application further incorporates these enterprises into the system, enabling the heat generated by their production to be input into the return pipeline between the integration unit 4 and the heating unit 5, thereby allowing the heat to enter the heating unit 5 together and replace more heating steam.

[0055] Optionally, such as Figure 7 As shown, the steam and waste heat recycling system provided in this application also includes a refrigeration unit 12 and a cooling unit 13; the refrigeration unit 12 is connected to the steam production unit 1, and the cooling unit 13 is connected to the refrigeration unit 12.

[0056] The cooling unit 13 includes, but is not limited to, the area of ​​the heat user 11.

[0057] During the non-heating season, the waste heat from power plant steam generation is discharged through a cooling tower. In the heating season, without reducing the original heat supply of the power plant, the steam, which was originally used solely for heating, is given the additional function of being used for production. In the non-heating season, the waste heat from the exhaust steam discharged by the power plant through the cooling tower is converted into steam for use by production enterprises. The enterprises use the steam to process heat exhaust, which is then transported to the refrigeration station through winter heating pipelines or some newly built pipelines as the driving source for refrigeration machines, providing cooling capacity to users. This replaces the primary energy source of steam production with the heat that the power plant must discharge, and at the same time, the heat exhaust of the steam production enterprises replaces the driving energy for refrigeration, generating huge economic benefits while saving a large amount of energy.

[0058] It should be added here that, in this application Figure 7 The diagram shows the cooling process during the non-heating season or summer, while the cooling unit 13 can be the heating unit 11 during the heating season or winter, i.e. Figure 1 The intermediate refrigeration unit 12 is not shown, but in the actual pipeline layout, Figure 1 The refrigeration unit 12 still exists, and a bypass pipe and switching valve can be installed at the location of the refrigeration unit 12 so that it bypasses the refrigeration unit 12 during the heating season and bypasses the heating pipe at the location of the refrigeration unit 12 during the non-heating season, without affecting each other, and without requiring too much pipeline layout.

[0059] Accordingly, in Figure 1 At the location of heating unit 5, a bypass pipeline and switching valve need to be added. During the non-heating season, the switching valve is used to allow the inlet and outlet water to circulate through the bypass pipeline without the participation of heating unit 5. During the heating season, the switching valve is used to switch to the original pipeline so that heating unit 5 can participate in the heating cycle.

[0060] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steam and waste heat recycling system, characterized in that, It includes a steam production unit, a primary steam consumption unit, an integration unit, a heating unit, and a heat consumption unit; The output end of the steam production unit is connected to the heat-using unit and the first steam-using unit, respectively. The output end of the first steam-using unit is connected to the integration unit. The integration unit is connected to the heating unit. The output end of the heating unit is connected to the return end of the steam production unit.

2. The steam and waste heat recycling system according to claim 1, characterized in that, It also includes a pressure boosting unit, the steam production unit is connected to the pressure boosting unit, and the output end of the pressure boosting unit is connected to the first steam-consuming unit.

3. The steam and waste heat recycling system according to claim 2, characterized in that, It also includes a first heat pump, the output end of the steam production unit is connected to the first inlet of the first heat pump, the first outlet of the first heat pump is connected to the integration unit, the heating unit is connected to the second inlet of the first heat pump, and the second outlet of the first heat pump is connected to the heating unit.

4. The steam and waste heat recycling system according to claim 3, characterized in that, It also includes an electric heat pump, wherein the first outlet of the first heat pump is connected to the first interface of the electric heat pump, the second interface of the electric heat pump is connected to the integrated unit, and the third interface of the electric heat pump is connected to the input end of the heating unit.

5. The steam and waste heat recycling system according to claim 3, characterized in that, It also includes a second heat pump, and the booster unit is connected to the second heat pump and the first steam-using unit respectively. The output end of the second heat pump is connected to the integration unit. The second heat pump is bidirectionally connected to the steam-using unit.

6. The steam and waste heat recycling system according to claim 5, characterized in that, It also includes a second steam consumption unit, which is disposed between the booster unit and the second heat pump.

7. The steam and waste heat recycling system according to claim 3, characterized in that, It also includes a heat exhaust extraction unit, the output end of the first heat pump is connected to the heat exhaust extraction unit and the integration unit respectively, and the output end of the heat exhaust extraction unit is connected to the heating unit.

8. The steam and waste heat recycling system according to claim 1, characterized in that, It also includes refrigeration units and cooling units; The refrigeration unit is connected to the steam production unit, and the cooling unit is connected to the refrigeration unit.

9. The steam and waste heat recycling system according to claim 6, characterized in that, Both the first heat pump and the second heat pump are absorption heat pumps.

10. The steam and waste heat recycling system according to claim 2, characterized in that, The booster unit includes a centrifugal compressor, an ejector, or a perforated suction device.

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