System for generating high-temperature steam by using medium-temperature water
Through heat pump technology, the medium-temperature water is heated up and combined with the steam inducer to generate high-temperature steam, which solves the problems of complex processes and high cost of the existing high-temperature steam generation system, and achieves efficient and low-cost high-temperature steam generation.
Patent Information
- Application Number
- CN202422169130.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing high-temperature steam generation system has complex processes and equipment and is costly.
The heat pump technology is used to heat the medium-temperature water twice, combined with the steam induction device, and use the medium-temperature thermal energy to generate high-temperature steam.
It realizes the use of medium-warming water to generate high-temperature steam, improves the utilization quality of heat sources, and is simple in process and equipment, and has low cost.
Smart Images
Figure CN223036364U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steam systems, and particularly relates to a system for generating high-temperature steam by using medium-temperature water. Background Art
[0002] A high-temperature steam supply system is a system that extracts and enhances thermal energy from a low-temperature heat source and finally generates high-temperature steam. These systems are widely used in industrial production, energy supply, medical waste treatment and other fields. At present, the processes and equipment of many high-temperature steam generation systems are complex and the costs are relatively high. Content of the Utility Model
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a system for generating high-temperature steam by using medium-temperature water, which solves the technical problems such as complex process equipment and high costs existing in the high-temperature steam generation system.
[0004] To solve the above problems, the technical solution of the utility model is as follows: A system for generating high-temperature steam by using medium-temperature water, comprising:
[0005] A first circulation pipeline, in which a medium-temperature heat source medium flows;
[0006] A heat pump, connected to the first circulation pipeline. The first circulation pipeline is used to provide a medium-temperature heat source for the heat pump, and the heat pump is used to heat up the medium-temperature water flowing into the heat pump to obtain a heat medium and output the heat medium through the heat medium outlet of the heat pump;
[0007] A steam ejector, having a suction port, a driving steam inlet and a steam outlet. The suction port of the steam ejector is connected to the heat medium outlet of the heat pump through a pipeline.
[0008] Optionally, the first circulation pipeline includes a first heat flow pipe and a first cold flow pipe. The flow outlet of the first heat flow pipe is connected to the heat pump, and the flow inlet of the first cold flow pipe is connected to the heat pump.
[0009] Optionally, the temperature of the heat exchange medium flowing from the first circulation pipeline into the heat pump is 80°C - 90°C.
[0010] Optionally, the temperature of the heat exchange medium flowing from the heat pump into the first circulation pipeline is 70°C.
[0011] Optionally, the heat medium is steam.
[0012] Optionally, the steam output from the heat medium outlet of the heat pump has a pressure of 0.1 MPa.
[0013] Optionally, the steam input from the driving steam inlet is 0.5 MPa driving steam, and the steam pressure range output from the steam outlet of the steam ejector is 0.2 MPa - 0.3 MPa.
[0014] Optionally, the temperature of the medium-temperature water input into the heat pump is greater than or equal to 60 °C, and the temperature of the steam output from the steam outlet of the steam ejector is 40 °C - 80 °C higher than the temperature of the medium-temperature heat source flowing into the heat pump.
[0015] Optionally, the heat pump is connected to a cooling tower through a cooling circulation pipeline.
[0016] Optionally, it further includes a box body, and the heat pump and the steam ejector are installed in the box body.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] The present utility model uses a large amount of medium-temperature heat sources to generate a small amount of utilizable high-temperature heat energy, that is, driven by medium-temperature heat energy, heat with less heat quantity but higher temperature than the medium-temperature heat source is produced, and part of the medium heat energy is transferred to a higher temperature level, thereby improving the utilization grade of the heat source. After the medium-temperature water is reheated by the heat pump to obtain a heat medium, the heat medium and the driving steam are inhaled by the steam ejector, and high-temperature steam is output for users to use, realizing the generation of high-temperature steam using medium-temperature water, meeting the steam supply requirements of users, with simple process and equipment and low cost. Description of the Drawings
[0019] Figure 1 It is a connection schematic diagram of the system in the embodiment.
[0020] Reference numerals: 1, the first circulation pipeline; 11, the first heat flow pipe; 12, the first cold flow pipe; 2, the heat pump; 21, the heat medium outlet; 3, the steam ejector; 31, the suction port; 32, the driving steam inlet; 33, the steam outlet; 4, the cooling tower; 5, the cooling circulation pipeline; 51, the second heat flow pipe; 52, the second cold flow pipe; 6, the box body; 61, the power distribution control cabinet. Detailed Embodiment
[0021] The present utility model will be further described in detail below with reference to the drawings and embodiments.
[0022] Embodiment: As Figure 1 shown, this embodiment provides a system for generating high-temperature steam using medium-temperature water, including a first circulation pipeline 1, a heat pump 2, and a steam ejector 3. A medium-temperature heat source medium flows inside the first circulation pipeline 1; the heat pump 2 is connected to the first circulation pipeline 1, and the first circulation pipeline 1 is used to provide a medium-temperature heat source for the heat pump 2. The heat pump 2 is used to heat up the medium-temperature water flowing into the heat pump 2 to obtain a heat medium and output the heat medium through the heat medium outlet 21 of the heat pump 2; the steam ejector 3 has a suction port 31, a driving steam inlet 32, and a steam outlet 33, and the suction port 31 of the steam ejector 3 is connected to the heat medium outlet 21 of the heat pump 2 through a pipeline.
[0023] With the above settings, the system of this embodiment uses a large amount of medium-temperature heat sources to generate a small amount of utilizable high-temperature heat energy, that is, driven by medium-temperature heat energy, it produces heat with a quantity less than but a temperature higher than that of the medium-temperature heat source, transferring part of the medium heat energy to a higher temperature level, thereby improving the utilization grade of the heat source. After the medium-temperature water is reheated into a heat medium by the heat pump 2, it is transported to the steam ejector 3. The steam ejector 3 uses steam as the driving power, and through suction, mixing, diffusion and augmentation effects, outputs high-temperature steam for users to use, meeting the steam supply requirements of users. It is a new type of energy, environmentally friendly, energy-saving, highly efficient, flexible in application, with simple processes and equipment, and low costs; the steam ejector 3 uses steam as the power, and utilizes the energy difference before and after the working steam is decompressed to improve the grade of the low-grade steam, and supplies it to the heat users together with the working steam. It can transport steam to users without using an electric motor, which can reduce production costs. The steam ejector 3 is a highly energy-saving device that can reasonably utilize both the grade and quantity of heat energy.
[0024] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the first circulation pipeline 1 includes a first heat flow pipe 11 and a first cold flow pipe 12. The flow outlet of the first heat flow pipe 11 is connected to the heat pump 2, and the flow inlet of the first cold flow pipe 12 is connected to the heat pump 2.
[0025] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the temperature of the heat exchange medium flowing into the heat pump 2 from the first circulation pipeline 1 is 80°C - 90°C.
[0026] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the temperature of the heat exchange medium flowing from the heat pump 2 into the first circulation pipeline 1 is 70°C.
[0027] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the heat medium is steam.
[0028] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the steam pressure output from the heat medium outlet 21 of the heat pump 2 is 0.1 MPa.
[0029] In the system for generating high-temperature steam using medium-temperature water of this embodiment, the driving steam input from the driving steam inlet 32 is 0.5 MPa driving steam, and the steam pressure range output from the steam output port 33 of the steam ejector 3 is 0.2 MPa - 0.3 MPa, that is, the steam pressure range transported to users is 0.2 MPa - 0.3 MPa.
[0030] In a system for generating high-temperature steam using medium-temperature water in this embodiment, the temperature of the medium-temperature water input into the heat pump 2 is greater than or equal to 60 °C, and the temperature of the steam output from the steam outlet 33 of the steam ejector 3 is 40 °C - 80 °C higher than the temperature of the medium-temperature heat source flowing into the heat pump 2. The process system flow is as follows: Hot water with a temperature above 60 °C is used and undergoes secondary temperature rise through the heat pump 2 to obtain a heat medium, such as steam, that is 40 - 80 °C higher than the temperature of the medium-temperature heat source.
[0031] In a system for generating high-temperature steam using medium-temperature water in this embodiment, the heat pump 2 is connected to the cooling tower 4 through the cooling circulation pipeline 5. The cooling tower 4 is used to cool down the heat pump 2. Specifically, the cooling circulation pipeline 5 includes a second heat flow pipe 51 and a second cold flow pipe 52; the inlet of the second heat flow pipe 51 is connected to the heat pump 2, the outlet of the second heat flow pipe 51 is connected to the cooling tower 4, the inlet of the second cold flow pipe 52 is connected to the cooling tower 4, and the outlet of the second cold flow pipe 52 is connected to the heat pump 2. The equipment has a simple structure and stable operation. The temperature of the heat exchange medium flowing into the heat pump 2 from the cooling circulation pipeline 5 is 32 °C, and the temperature of the heat exchange medium flowing from the heat pump 2 into the cooling circulation pipeline 5 is 37 °C.
[0032] In a system for generating high-temperature steam using medium-temperature water in this embodiment, it further includes a box body 6, and the heat pump 2 and the steam ejector 3 are installed in the box body 6. It has a simple structure, is convenient for transportation and maintenance, and plays a protective role for the heat pump 2 and the steam ejector 3. A power distribution control cabinet 61 is arranged in the box body 6, and the power distribution system in the power distribution control cabinet 61 is electrically connected to the heat pump 2.
Claims
1. A system for generating high-temperature steam using medium-temperature water, characterized in that: include: A first circulation pipeline (1) having a medium-temperature heat source medium flowing therein; The heat pump (2) is connected to the first circulation pipeline (1), the first circulation pipeline (1) is used to provide a medium-temperature heat source for the heat pump (2), and the heat pump (2) is used to heat the medium-temperature water flowing into the heat pump (2) to obtain a heat medium and output the heat medium through a heat medium outlet (21) of the heat pump (2); The steam ejector (3) has a suction port (31), a driving steam inlet (32) and a steam outlet (33). The suction port (31) of the steam ejector (3) is connected to the heat medium outlet (21) of the heat pump (2) through a pipeline.
2. A system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: The first circulation pipeline (1) comprises a first hot flow pipe (11) and a first cold flow pipe (12); the outlet of the first hot flow pipe (11) is connected to the heat pump (2), and the inlet of the first cold flow pipe (12) is connected to the heat pump (2).
3. The system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: The temperature of the heat exchange medium flowing from the first circulation pipeline (1) into the heat pump (2) is 80°C-90°C.
4. A system for generating high-temperature steam using medium-temperature water according to claim 3, characterized in that: The temperature of the heat exchange medium flowing from the heat pump (2) into the first circulation pipeline (1) is 70°C.
5. The system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: The heat medium is steam.
6. A system for generating high-temperature steam using medium-temperature water according to claim 5, characterized in that: The steam pressure output from the heat medium outlet (21) of the heat pump (2) is 0.1 MPa.
7. A system for generating high-temperature steam using medium-temperature water according to claim 6, characterized in that: The steam input from the driving steam inlet (32) is driving steam of 0.5 MPa, and the steam pressure output from the steam output port (33) of the steam ejector (3) is in the range of 0.2 MPa-0.3 MPa.
8. The system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: The temperature of the medium-temperature water input into the heat pump (2) is greater than or equal to 60°C, and the temperature of the steam output from the steam output port (33) of the steam ejector (3) is 40°C-80°C higher than the temperature of the medium-temperature heat source flowing into the heat pump (2).
9. The system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: The heat pump (2) is connected to the cooling tower (4) via a cooling circulation pipeline (5).
10. The system for generating high-temperature steam using medium-temperature water according to claim 1, characterized in that: It also comprises a box body (6), in which the heat pump (2) and the steam ejector (3) are installed.