Multi-path parallel steam engine

Abstract

The utility model provides a multi-path parallel steam engine. Relates to the field of steam generators, and aims to solve the problem that a steam engine with multiple combustors working together is inconvenient to accurately control a single combustor and overhaul the single combustor at present, a steam temperature sensor is arranged on an exhaust branch pipe, and a steam pressure sensor is arranged on a steam exhaust pipe, so that the working condition of each heat exchange assembly is independently obtained; the operation states of the combustor, the heat exchange module and the smoke exhaust fan of each heat exchange assembly are recognized, accurate recognition and control over each heat exchange assembly are achieved, the requirement for independently testing the heat exchange assemblies is met, and the problem that overall shutdown is needed during troubleshooting is solved.

Description

Technical Field

[0001] The utility model relates to the field of steam generators, in particular to a multi-path parallel steam engine. Background Art

[0002] The heat source of the steam generator can be a fire row module furnace, a cross-flow chamber furnace, a mosquito coil furnace, etc. Most of them have the problem that the actual power is lower than the rated power, and there are problems such as low heat exchange efficiency and safety hazards.

[0003] A Chinese patent (publication number CN 209909865 U) discloses a high-efficiency gasification steam engine, which uses heat exchange tubes in a staggered manner to improve heat exchange efficiency, fully utilize the gas combustion area, and improve heat exchange efficiency; it sets multiple burners to work together, the water supply ratio can control the water flow ratio, improve the water vaporization rate in the heat exchanger, and share the pressure gauge, protection switch and other pipeline components on the steam output part. When the steam demand of the system changes significantly, it is necessary to obtain and control the operating status of each burner separately. Since the gasification steam engine in the prior art shares the monitoring element of the steam output part, it is inconvenient to obtain the working status of each burner corresponding to the output steam, which makes it difficult to identify the operating status of each burner and inconvenient to achieve precise control of the burners separately; in addition, when a burner fails or needs maintenance, because the monitoring element on the steam output part is occupied by other running burners, it is inconvenient to test the faulty burner separately, and the entire system needs to be shut down for troubleshooting, which affects the system's operating continuity and operating efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-channel parallel steam engine in response to the defects of the prior art. By arranging a steam temperature sensor on the exhaust branch pipe and a steam pressure sensor on the exhaust pipe, the working condition of each heat exchange component can be independently obtained, the operating status of the burner, heat exchange module and smoke exhaust fan of each heat exchange component can be identified, and each heat exchange component can be accurately identified and controlled, meeting the needs of individually testing the heat exchange components and solving the problem of overall shutdown required for troubleshooting.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A multi-path parallel steam engine, comprising:

[0007] The heat exchange part is provided with a plurality of heat exchange components, each of which includes a burner, a heat exchange module and a smoke exhaust fan. The water inlet pipe is connected to the heat exchange module, and the gas supply pipe is connected to the burner; the smoke exhaust pipe is connected to the smoke exhaust fan through a plurality of smoke exhaust branch pipes one by one, and each smoke exhaust branch pipe is provided with a smoke temperature sensor and a wind pressure switch; the steam exhaust pipe is connected to the exhaust end of the heat exchange module through a plurality of steam exhaust branch pipes one by one, and a steam pressure sensor is provided on the steam exhaust pipe, and each steam exhaust branch pipe is provided with a steam temperature sensor;

[0008] The steam pressure sensor is used to detect the steam pressure and send it to the controller, and the steam temperature sensor is used to detect the temperature of the steam output from each heat exchange module and send it to the controller.

[0009] Furthermore, it also includes a water inlet part, which includes a water inlet pipe, and the water inlet pipe is respectively connected to a plurality of water inlet branch pipes, and the plurality of water inlet branch pipes are connected to the water intake ends of the heat exchange modules of the plurality of heat exchange components in a one-to-one correspondence.

[0010] Furthermore, the water inlet pipe is provided with a water inlet temperature sensor, which is used to detect the water inlet temperature and send it to the controller.

[0011] Furthermore, the water inlet branch pipe is provided with a water inlet solenoid valve, a plunger pump, a water flow Hall sensor, a ball valve, a water inlet pressure sensor and a check valve in sequence, and the water inlet solenoid valve, the plunger pump, the water flow Hall sensor and the water inlet pressure sensor are respectively connected to the controller.

[0012] Furthermore, the smoke temperature sensor and the wind pressure switch are respectively connected to the controller. The smoke temperature sensor is used to obtain the temperature of the smoke in the smoke exhaust branch pipe and send it to the controller. The wind pressure switch obtains the flow rate of the smoke in the smoke exhaust branch pipe and sends it to the controller.

[0013] Furthermore, the gas supply pipe is connected to a plurality of burners in a one-to-one correspondence through a plurality of gas supply branch pipes, and a gas pressure sensor connected to a controller is provided on the gas supply pipe, and the gas pressure sensor is used to measure the gas pressure and send it to the controller.

[0014] Furthermore, the exhaust pipe is provided with a steam pressure switch connected to the controller, and the steam pressure switch measures the steam pressure in the exhaust pipe and sends it to the controller.

[0015] Furthermore, the heat exchange part includes four heat exchange components, and the smoke exhaust fan, the heat exchange module and the burner are distributed in sequence in the vertical direction.

[0016] Furthermore, the heat exchange module includes a coiled heat exchange tube, one end of the heat exchange tube is connected to the water inlet pipe, and the other end is connected to the exhaust pipe.

[0017] Furthermore, the heat exchange tube is provided with fins, and the heat released by the burner acts on the fins and the heat exchange tube simultaneously.

[0018] Compared with the prior art, the utility model has the following advantages and positive effects:

[0019] (1) In view of the problem that it is inconvenient to accurately control and repair a single burner in a steam engine with multiple burners working together, a steam temperature sensor is set on the exhaust branch pipe and a steam pressure sensor is set on the exhaust pipe to independently obtain the working status of each heat exchange component, identify the operating status of the burner, heat exchange module and exhaust fan of each heat exchange component, and realize accurate identification and control of each heat exchange component, meet the needs of individual testing of heat exchange components, and solve the problem of overall shutdown for troubleshooting.

[0020] (2) The heat exchanger is provided with fins, which are used to increase heat exchange and thus improve heat exchange efficiency, thereby achieving low carbon and low nitrogen emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, 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 an improper limitation on the present invention.

[0022] Figure 1 It is a schematic diagram of the pipelines of a multi-channel parallel steam engine in an embodiment of the utility model.

[0023] In the figure, 1. controller, 2. water inlet pipe, 3. water inlet branch pipe, 4. water inlet solenoid valve, 5. plunger pump, 6. ball valve, 7. water inlet pressure sensor, 8. check valve, 9. burner, 10. heat exchange module, 11. exhaust fan, 12. steam temperature sensor, 13. flue gas temperature sensor, 14. wind pressure switch, 15. gas supply branch pipe, 16. gas supply pipe, 17. gas pressure sensor, 18. exhaust branch pipe, 19. exhaust pipe, 20. exhaust branch pipe, 21. exhaust pipe, 22. steam pressure switch, 23. steam pressure sensor. DETAILED DESCRIPTION

[0024] In a typical implementation of the present invention, Figure 1 As shown, a multi-path parallel steam engine is proposed.

[0025] A multi-channel parallel steam engine can solve the efficiency, stability and safety problems in the steam generation process in the prior art. By adopting a multi-channel parallel design, high efficiency and stability of steam generation are achieved. At the same time, the controller 1 is combined to collect the operating status data of each heat exchange component, thereby improving the safety and reliability of the entire system.

[0026] like Figure 1As shown, the multi-channel parallel steam engine includes a heat exchange part, a controller 1, a supply part and a discharge part, wherein the supply part includes a water inlet part and a gas part, the water inlet part uses a water inlet pipe 2 to supply water to the heat exchange part, and the gas part supplies gas to the heat exchange part through a gas supply pipe 16; the heat exchange part can heat the input water body to generate steam and then output it; the discharge part includes an exhaust pipe 21 and a smoke exhaust pipe 19, the exhaust pipe 21 is used to output the steam generated by the heating of the water body, and the smoke exhaust pipe 19 is used to output the smoke generated after the combustion of the gas.

[0027] The heat exchange part is equipped with multiple heat exchange components, each of which can independently perform heat exchange process to generate steam. Steam generation is no longer dependent on a single component, and even if a component fails or performance deteriorates, it will not have a serious impact on the entire steam generation process, thereby improving the stability and reliability of steam generation.

[0028] Each heat exchange component includes a burner 9, a heat exchange module 10 and a smoke exhaust fan 11. The water inlet pipe 2 is connected to the heat exchange module 10 to input water into the heat exchange module 10. The gas supply pipe 16 is connected to the burner 9. The gas burns in the burner 9 to release heat and exchange heat with the water in the heat exchange module 10. The water in the heat exchange module 10 is heated to generate steam for discharge. The smoke exhaust fan 11 extracts the exhaust gas generated after the combustion of the gas and discharges it through the smoke exhaust pipe 19.

[0029] Corresponding to the multiple heat exchange components of the heat exchange part, the smoke exhaust pipe 19 is connected to the smoke exhaust fan 11 one by one through multiple smoke exhaust branch pipes 18. Each smoke exhaust branch pipe 18 is connected to the smoke exhaust fan 11 of a heat exchange component. Each smoke exhaust branch pipe 18 is provided with a smoke temperature sensor 13 and a wind pressure switch 14.

[0030] The smoke exhaust branch pipe 18 is integrated with a smoke temperature sensor 13 and a wind pressure switch 14. The wind pressure switch 14 uses the static pressure of the gas to push the micro switch to realize the on and off of the current. When the smoke exhaust branch pipe 18 is not exhausting smoothly, it can timely feedback to the controller 1, so that the controller 1 controls the closing of the gas supply pipe 16 to prevent gas leakage, thereby protecting personal safety. The wind pressure switch 14 has a wide range of applications in industrial automation control systems, especially playing an important role in the safety control of gas-related electrical products. The wind pressure switch 14 in this embodiment can use existing products.

[0031] The flue gas temperature sensor 13 can monitor the flue gas temperature in real time and feed back this key data to the controller 1; the controller 1 can adjust the gas supply, exhaust volume and other parameters by monitoring and analyzing the flue gas temperature. In order to ensure the optimal combustion efficiency and safety, when the flue gas temperature measured by the flue gas temperature sensor 13 exceeds the set value, the set value can be selected as 200°C, etc., triggering the protection of the controller 1 to shut down the burner 9 and issue an alarm prompt, thereby preventing equipment damage or accidents. The flue gas temperature sensor 13 plays a key monitoring and regulating role in the entire steam generation system, ensuring the efficient and safe operation of the system.

[0032] The exhaust pipe 21 is connected to the exhaust end of the heat exchange module 10 through a plurality of exhaust branch pipes 20 in a one-to-one correspondence. A steam pressure sensor 23 is provided on the exhaust pipe 21, and a steam temperature sensor 12 is provided on each exhaust branch pipe 20; the steam generation process can be accurately monitored and adjusted to ensure stable operation and efficient output of the system.

[0033] The steam pressure sensor 23 can detect the steam pressure value in real time. Steam pressure is one of the important parameters for evaluating the working state and performance of the steam generation system. By monitoring the steam pressure, it can be determined whether the amount of steam generated meets the demand, and possible pressure fluctuations or abnormalities can be discovered in time. When the steam pressure exceeds or falls below the set range, the controller 1 can make corresponding adjustments according to the feedback signal of the steam pressure sensor 23, such as adjusting the output power of the burner 9, changing the water inlet flow rate, etc., to maintain the stability of the steam pressure.

[0034] The steam temperature sensor 12 provided on each exhaust branch pipe 20 is used to monitor the temperature of the steam output by each heat exchange component in real time. Steam temperature is another key indicator reflecting the heat exchange efficiency and steam quality. By comparing the steam temperatures of different heat exchange components, the differences in their working conditions can be judged, and then targeted optimization and adjustment of each component can be carried out. In addition, steam temperature is also closely related to safety performance. Too high steam temperature may cause overheating or damage to the equipment, while too low temperature may affect the use effect of steam. Therefore, the setting of the steam temperature sensor 12 helps to detect temperature abnormalities in a timely manner and take corresponding measures to ensure the safe operation of the system.

[0035] Obtaining parameters such as flue gas temperature, wind pressure, steam temperature and steam pressure meets the needs of evaluating heat exchange efficiency, predicting possible failures and adjusting operating parameters. Therefore, through the coordinated work of integrated sensors, precise control of the heat exchange process is achieved, and the efficiency of steam generation is improved.

[0036] The multi-channel parallel steam engine achieves high efficiency, stability and safety in steam generation by adopting a multi-channel parallel design, integrating multiple sensors and introducing an intelligent controller1.

[0037] like Figure 1 As shown, in this embodiment, the multi-channel parallel steam engine uses four heat exchange components, and the exhaust fan 11, the heat exchange module 10 and the burner 9 are distributed in sequence in the vertical direction. The heat exchange module 10 and the burner 9 work independently, reducing the risk of shutdown due to various reasons and greatly improving the stability of its work.

[0038] The water inlet part includes a water inlet pipe 2, which is connected to a plurality of water inlet branches 3, and the plurality of water inlet branches 3 are connected to the water intake ends of the heat exchange modules 10 of the plurality of heat exchange components in a one-to-one correspondence. A water inlet temperature sensor is provided on the water inlet pipe 2, which is used to detect the water inlet temperature and send it to the controller 1. This ensures that each heat exchange component can obtain the required amount of water, and realizes uniform distribution of water.

[0039] The water inlet pipe 2 is provided with a water inlet temperature sensor for real-time detection of the temperature of water entering the system. The water inlet temperature has an important influence on the heat exchange process and the final steam generation efficiency. By monitoring the water inlet temperature, the working state of the heat exchange component can be better understood, thereby performing more precise control and regulation.

[0040] The inlet water temperature sensor sends the detected data to the controller 1. The controller 1 is responsible for receiving the data from each sensor and controlling and adjusting the entire multi-channel parallel steam engine according to the data. By sending the inlet water temperature data to the controller 1, the multi-channel parallel steam engine can understand the inlet water status in real time, and then assist in adjusting the heat exchange process to improve the steam generation efficiency.

[0041] The water inlet branch pipe 3 is provided with a water inlet solenoid valve 4, a plunger pump 5, a water flow Hall sensor, a ball valve 6, a water inlet pressure sensor 7 and a check valve 8 in sequence. The water inlet solenoid valve 4, the plunger pump 5, the water flow Hall sensor and the water inlet pressure sensor 7 are respectively connected to the controller 1. The smoke temperature sensor 13 and the wind pressure switch 14 are respectively connected to the controller 1. The smoke temperature sensor 13 is used to obtain the temperature of the smoke in the exhaust branch pipe 18 and send it to the controller 1. The wind pressure switch 14 obtains the flow rate of the smoke in the exhaust branch pipe 18 and sends it to the controller 1. The gas supply pipe 16 is connected to multiple burners 9 in a one-to-one correspondence through multiple gas supply branch pipes 15. The gas supply pipe 16 is provided with a gas pressure sensor 17 connected to the controller 1. The gas pressure sensor 17 is used to measure the gas pressure and send it to the controller 1.

[0042] Among them, the water inlet solenoid valve 4 is used to control the on-off of the water inlet branch pipe 3, and is opened or closed according to the instruction of the controller 1 to ensure the precise control of the water flow. The plunger pump 5 is responsible for providing power for the water flow to ensure that the water can smoothly flow into the heat exchange module 10 of the heat exchange component. The water flow Hall sensor is used to detect the state of the water flow, such as flow rate, flow rate, etc., and provide real-time water flow data to the controller 1. The ball valve 6 is used as a manual control valve to adjust or close the water flow of the water inlet branch pipe 3. The water inlet pressure sensor 7 is used to detect the water pressure in the water inlet branch pipe 3 to ensure that the water can flow into the heat exchange module 10 evenly and stably. The check valve 8 prevents the water flow from flowing back and ensures the unidirectionality of the water flow. The linkage control is carried out by the controller 1, so that the water inlet process can be carried out accurately and stably, providing a stable water source for steam generation.

[0043] The smoke exhaust branch pipe 18 is provided with a smoke temperature sensor 13 and an air pressure switch 14. The smoke temperature sensor 13 is installed in the smoke exhaust branch pipe 18 to monitor the temperature of the smoke in real time and transmit the data to the controller 1. By analyzing these data, the controller 1 can determine the combustion state and adjust the combustion parameters. The air pressure switch 14 is also installed in the smoke exhaust branch pipe 18 to detect the flow of the smoke. When the smoke flow is abnormal, the air pressure switch 14 will send a signal to the controller 1, and the controller 1 will take corresponding safety measures, such as shutting down the burner 9, etc., to ensure the safety of the system.

[0044] The gas supply pipe 16 provides gas to each burner 9 through multiple gas supply branch pipes 15. The gas supply pipe 16 serves as the main gas supply pipeline to provide gas to the entire system. The gas supply branch pipes 15 are branched from the gas supply pipe 16 and connected to each burner 9 one by one to ensure that each burner 9 can obtain the required amount of gas. The gas supply branch pipes 15 are also connected to a control valve group to adjust the gas supply process.

[0045] The gas pressure sensor 17 is installed on the gas supply pipe 16 to monitor the gas pressure in real time. By detecting the gas pressure, the controller 1 can determine the gas supply status, thereby adjusting the gas supply or taking other measures to ensure the stability and safety of combustion.

[0046] The exhaust pipe 21 is provided with a steam pressure switch 22 connected to the controller 1. The steam pressure switch 22 measures the steam pressure in the exhaust pipe 21 and sends it to the controller 1. The steam pressure in the exhaust pipe 21 is measured. The steam pressure is one of the important parameters for evaluating the working state and performance of the steam generation system. By real-time monitoring of the steam pressure, the stability of the steam generation amount can be determined, as well as whether there are potential faults or abnormal conditions.

[0047] The steam pressure switch 22 not only has a measuring function, but also can act according to a preset pressure threshold. When the steam pressure exceeds or falls below the set safety range, the steam pressure switch 22 will trigger a corresponding signal and send the signal to the controller 1. This allows the controller 1 to understand the changes in steam pressure in real time and respond in a timely manner. After receiving the signal from the steam pressure switch 22, the controller 1 will process it according to the preset logic and algorithm. For example, if the steam pressure is too high, the controller 1 can adjust the output power of the burner 9 and reduce the amount of steam generated to avoid overpressure or damage to the equipment. If the steam pressure is too low, the controller 1 can increase the water inlet flow rate or adjust the combustion state of the burner 9 to improve the steam generation efficiency.

[0048] The connection between the steam pressure switch 22 and the controller 1 ensures the accuracy and real-time nature of the data. The controller 1 can continuously monitor changes in steam pressure and make adjustments as needed to ensure stable operation and efficient output of the steam generation system.

[0049] The heat exchange module 10 includes a coiled heat exchange tube, one end of which is connected to the water inlet pipe 2, and the other end is connected to the exhaust pipe 21; the heat exchange tube in the heat exchange module 10 is coiled to increase the contact area between the heat exchange tube and the hot air generated by the burner 9, thereby improving the heat exchange efficiency. At the same time, the coiled arrangement also helps to evenly distribute heat in the heat exchange tube, so that the incoming water can fully absorb heat and convert it into steam. The heat exchange tube is provided with fins to expand the surface area, effectively increase the contact area between the heat exchange tube and the hot air, thereby further improving the heat exchange efficiency. When the burner 9 releases heat, the hot air not only directly acts on the heat exchange tube, but also transfers heat through the fins, so that the heat can be transferred to the water faster, accelerating the vaporization process of the water.

[0050] In this embodiment, the heat pipe can be made of high temperature resistant and corrosion resistant 316L stainless steel.

[0051] In addition, the design of the fins also helps to enhance the turbulence effect of the hot air. When the hot air released by the burner 9 flows through the fins, it will be blocked and guided by the fins, generating eddies and turbulence, thereby increasing the convective heat transfer coefficient between the hot air and the heat exchange tubes, further improving the heat exchange efficiency. Compared with a 1T / h traditional gas steam boiler, a 1T / h multi-way parallel steam engine will reduce carbon dioxide emissions by an average of 1146.3T per year; compared with a 1T / h coal-fired steam boiler, a 1T / h multi-way parallel steam engine will reduce carbon dioxide emissions by an average of 3364.9T per year.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-path parallel steam engine, It is characterized in that include: The heat exchange part is provided with a plurality of heat exchange components, each of which includes a burner, a heat exchange module and a smoke exhaust fan. The water inlet pipe is connected to the heat exchange module, and the gas supply pipe is connected to the burner; the smoke exhaust pipe is connected to the smoke exhaust fan through a plurality of smoke exhaust branch pipes one by one, and each smoke exhaust branch pipe is provided with a smoke temperature sensor and a wind pressure switch; the steam exhaust pipe is connected to the exhaust end of the heat exchange module through a plurality of steam exhaust branch pipes one by one, and a steam pressure sensor is provided on the steam exhaust pipe, and each steam exhaust branch pipe is provided with a steam temperature sensor; The steam pressure sensor is used to detect the steam pressure and send it to the controller, and the steam temperature sensor is used to detect the temperature of the steam output from each heat exchange module and send it to the controller.

2. The multi-path parallel steam engine as claimed in claim 1, It is characterized in that It also includes a water inlet part, which includes a water inlet pipe, which is connected to a plurality of water inlet branches respectively, and the plurality of water inlet branches are connected to the water intake ends of the heat exchange modules of the plurality of heat exchange components in a one-to-one correspondence.

3. The multi-path parallel steam engine as claimed in claim 2, It is characterized in that The water inlet pipe is provided with a water inlet temperature sensor, which is used to detect the water inlet temperature and send it to the controller.

4. A multi-path parallel steam engine as claimed in claim 2 or 3, It is characterized in that The water inlet branch pipe is provided with a water inlet solenoid valve, a plunger pump, a water flow Hall sensor, a ball valve, a water inlet pressure sensor and a check valve in sequence, and the water inlet solenoid valve, the plunger pump, the water flow Hall sensor and the water inlet pressure sensor are respectively connected to the controller.

5. The multi-path parallel steam engine as claimed in claim 1, It is characterized in that The smoke temperature sensor and the wind pressure switch are connected to the controller respectively. The smoke temperature sensor is used to obtain the temperature of the smoke in the smoke exhaust branch pipe and send it to the controller. The wind pressure switch obtains the flow rate of the smoke in the smoke exhaust branch pipe and sends it to the controller.

6. A multi-path parallel steam engine as claimed in claim 1 or 5, It is characterized in that The gas supply pipe is connected to a plurality of burners in a one-to-one correspondence through a plurality of gas supply branch pipes. A gas pressure sensor connected to a controller is provided on the gas supply pipe. The gas pressure sensor is used to measure the gas pressure and send it to the controller.

7. The multi-path parallel steam engine as claimed in claim 1, It is characterized in that The exhaust pipe is provided with a steam pressure switch connected to the controller, and the steam pressure switch measures the steam pressure in the exhaust pipe and sends it to the controller.

8. The multi-path parallel steam engine as claimed in claim 1, It is characterized in that The heat exchange part includes four heat exchange components, and the smoke exhaust fan, the heat exchange module and the burner are distributed in sequence in the vertical direction.

9. The multi-path parallel steam engine as claimed in claim 8, It is characterized in that The heat exchange module comprises a coiled heat exchange tube, one end of which is connected to a water inlet pipe and the other end of which is connected to a steam exhaust pipe.

10. The multi-path parallel steam engine as claimed in claim 9, It is characterized in that The heat exchange tube is provided with fins, and the heat released by the burner acts on the fins and the heat exchange tube at the same time.

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