A regenerative steam superheating system for an energy-saving steam oven

Abstract

This utility model discloses a regenerated steam superheating system for an energy-saving steam oven, including a superheater, a regenerated steam device, and a water supply pipeline. The superheater is equipped with a high-temperature, high-pressure steam outlet, and the regenerated steam device is equipped with a high-temperature, high-pressure steam inlet and a regenerated steam outlet. The high-temperature, high-pressure steam outlet is connected to both the high-temperature, high-pressure steam inlet and the water supply pipeline via a gas-liquid separator. The water supply pipeline is connected to the regenerated steam device, and the regenerated steam outlet is connected to the superheater. This utility model uses high-temperature, high-pressure steam as a heat source to heat the regenerated steam in the superheater, and separates the vapor phase of the high-temperature, high-pressure steam, returning it to the regenerated steam device for power steam recycling. The heated regenerated steam significantly reduces its moisture content while increasing its temperature. Compared with the prior art, the regenerated steam superheating system of this utility model produces steam with low moisture content and high temperature, meeting the specific process requirements of crispy noodle production.

Description

Technical Field

[0001] This utility model relates to the field of regenerated steam, and in particular to a regenerated steam superheating system for an energy-saving steam oven. Background Technology

[0002] Currently, energy-saving systems for instant noodle steamers mainly employ waste steam recovery technology. This involves recovering the waste steam emitted from the steamer and utilizing its high heat energy to heat soft water in a regenerated steam unit to generate regenerated steam, thereby reducing external steam consumption. The system requires external steam as a power source. A relative negative pressure environment is established to convert soft water into low-grade steam, which is then compressed into high-grade saturated steam at approximately 105°C. This steam meets the process requirements of most instant noodle production lines. However, in crispy noodle production lines, the steamer process requires superheated steam at a temperature no lower than 140°C. Existing regenerated steam systems generate saturated steam at a lower temperature, resulting in the cooked noodle cake having a moisture content exceeding the process standard. Therefore, this system is unsuitable for the specific process requirements of crispy noodle production lines.

[0003] Based on the above, the existing steam oven energy-saving system needs further improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing steam box energy-saving systems, which produce steam with excessively low temperature and excessively high moisture content. It provides a regenerated steam superheating system for steam box energy-saving equipment. The regenerated steam in the superheater is heated by high-temperature and high-pressure steam. The vapor phase of the high-temperature and high-pressure steam after gas-liquid separation enters the regenerated steam device and is used as power steam to generate regenerated steam. The regenerated steam is input into the superheater for superheating and pressure increase, thereby reducing the moisture content and meeting the specific process requirements of crispy noodle production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a regenerated steam superheating system for an energy-saving steam oven, comprising a superheater, a regenerated steam device, and a water supply pipeline. The superheater is provided with a high-temperature and high-pressure steam outlet, and the regenerated steam device is provided with a high-temperature and high-pressure steam inlet and a regenerated steam outlet. The high-temperature and high-pressure steam outlet is connected to the high-temperature and high-pressure steam inlet and the water supply pipeline respectively through a gas-liquid separator. The water supply pipeline is connected to the regenerated steam device, and the regenerated steam outlet is connected to the superheater.

[0006] This invention uses high-temperature, high-pressure steam as a heat source to heat the regenerated steam in the superheater. After heat exchange, the high-temperature, high-pressure steam is separated into a water phase and a vapor phase by a gas-liquid separator. The vapor phase is returned to the regenerated steam unit for power steam recycling, while the heated regenerated steam significantly reduces its moisture content while increasing its temperature, ultimately producing superheated steam. Compared with existing technologies, the regenerated steam superheating system of this invention's steam oven energy-saving equipment produces steam with low moisture content and high temperature, meeting the specific process requirements of crispy noodle production.

[0007] Preferably, the superheater is provided with a regenerated steam inlet, which is connected to the regenerated steam outlet. After the high-temperature and high-pressure steam from the superheater is separated by a gas-liquid separator, its vapor phase enters the regenerated steam device through the high-temperature and high-pressure steam inlet, serving as motive steam to generate regenerated steam in the regenerated steam device. The regenerated steam then enters the superheater for superheating through the regenerated steam outlet and the regenerated steam inlet in sequence.

[0008] Preferably, the water supply pipeline includes a water tank, which is provided with a condensate inlet and a soft water inlet. The condensate inlet is connected to a gas-liquid separator. Superheated steam is separated into steam and condensate by the gas-liquid separator, and the condensate is stored in the water tank for replenishing water to the regenerated steam device.

[0009] Preferably, the water tank is provided with a condensate outlet, the regenerated steam device is provided with a water inlet, and the condensate outlet is connected to the water inlet.

[0010] Preferably, a second pneumatic valve is provided between the condensate outlet and the water inlet.

[0011] Preferably, the water supply pipeline further includes a first pneumatic valve and a fourth pneumatic valve, the water tank is provided with an overflow port, the first pneumatic valve is connected to the overflow port, and the fourth pneumatic valve is connected to the soft water inlet.

[0012] When the regenerated steam unit generates steam, the liquid level inside decreases. When it reaches the low liquid level setpoint, the level gauge sends a signal, the first pneumatic valve closes, and the second pneumatic valve opens to replenish water into the regenerated steam unit. If the replenished water reaches the high liquid level setpoint, the first pneumatic valve opens and the second pneumatic valve closes. If the liquid level after replenishment does not reach the high liquid level setpoint and reaches a lower liquid level setpoint, the fourth pneumatic valve opens, and soft water enters the water tank. When the level gauge reaches the high liquid level setpoint after replenishment, the fourth pneumatic valve closes, the first pneumatic valve opens, and the second pneumatic valve closes.

[0013] Preferably, the high-temperature and high-pressure steam inlet is sequentially connected to a third pneumatic valve and a manual valve. The third pneumatic valve is connected to a gas-liquid separator, and the manual valve is connected to the gas-liquid separator and the inlet. The third pneumatic valve is used to maintain a stable steam flow rate into the regenerated steam device, and the manual valve is normally closed to protect the system in case the third pneumatic valve fails.

[0014] Preferably, the superheater is provided with an inlet and an outlet.

[0015] Preferably, the output port is connected to a first thermometer, and a second thermometer is provided between the regenerated steam outlet and the regenerated steam inlet; placing the thermometers on both sides of the superheater can help determine the temperature changes before and after superheating.

[0016] Preferably, the regenerated steam device is equipped with a level gauge, which is used to monitor the liquid level of the regenerated steam device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention (the triangular symbol on the pipeline indicates the flow direction).

[0018] Label Explanation:

[0019] The regenerated steam superheating system of the steam oven energy-saving equipment includes: 1. Superheater; 2. Inlet; 21. Outlet; 22. High-temperature and high-pressure steam outlet; 23. Regenerated steam inlet; 24. Regenerated steam device; 3. Regenerated steam outlet; 31. High-temperature and high-pressure steam inlet; 32. Water supply outlet; 33. Water tank; 41. Condensate inlet; 411. Soft water inlet; 412. Condensate outlet; 413. Overflow outlet; 414. Second pneumatic valve; 42. First pneumatic valve; 43. Fourth pneumatic valve; 44. Gas-liquid separator; 5. Third pneumatic valve; 6. Manual valve; 7. First thermometer; 8. Second thermometer; 9. Liquid level gauge; 10. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "horizontal", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and does 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, it should not be construed as a limitation of this utility model.

[0021] See Figure 1This embodiment discloses a regenerated steam superheating system 1 for an energy-saving steam oven, including a superheater 2, a regenerated steam device 3, and a water supply pipeline 4. The superheater 2 is provided with a high-temperature and high-pressure steam outlet 23, and the regenerated steam device 3 is provided with a high-temperature and high-pressure steam inlet 32 ​​and a regenerated steam outlet 31. The high-temperature and high-pressure steam outlet 23 is connected to the high-temperature and high-pressure steam inlet 32 ​​and the water supply pipeline respectively through a gas-liquid separator 5. The water supply pipeline is connected to the regenerated steam device 3, and the regenerated steam outlet 31 is connected to the superheater 2.

[0022] The superheater 2 is equipped with a regenerated steam inlet 24, which is connected to the regenerated steam outlet 31. In this scheme, two gas transmission paths are formed between the superheater 2 and the regenerated steam device 3. The high-temperature and high-pressure steam from the superheater 2 enters the regenerated steam device 3 as driving steam, which generates regenerated steam in the regenerated steam device. The regenerated steam enters the superheater 2 through the regenerated steam outlet 31 and the regenerated steam inlet 24 to be heated, so that the output steam is superheated steam with high temperature and low water content.

[0023] To collect the separated condensate, the water supply pipeline includes a water tank 41, which is provided with a condensate inlet 411 and a soft water inlet 412. The condensate inlet 411 is connected to the gas-liquid separator 5.

[0024] To recycle the condensate separated from the high-temperature and high-pressure steam, the water tank 41 is provided with a condensate outlet 413, and the regenerated steam device 3 is provided with a water inlet 33. The condensate outlet 413 is connected to the water inlet 33.

[0025] A second pneumatic valve 42 is provided between the condensate outlet 413 and the water inlet 33.

[0026] The water supply pipeline also includes a first pneumatic valve 43 and a fourth pneumatic valve 44. The water tank 41 is provided with an overflow port 414. The first pneumatic valve 43 is connected to the overflow port 414, and the fourth pneumatic valve 44 is connected to the soft water inlet 412. In this scheme, the first pneumatic valve 43, the fourth pneumatic valve 44, the second pneumatic valve 42, and the level gauge 10 work together. When the level gauge 10 detects that the liquid level in the regenerated steam device 3 has reached the low liquid level set value, the level gauge 10 sends a signal, the first pneumatic valve 43 closes, and the second pneumatic valve 42 opens, allowing condensate to be added to the regenerated steam device 3 through the water inlet 33. If water is added to the high liquid level set value, the first pneumatic valve 43 opens and the second pneumatic valve 42 closes. If the liquid level continues to drop after water addition until it reaches a lower liquid level set value, the fourth pneumatic valve 44 opens, and soft water enters the water tank 41. When the liquid level reaches the high liquid level set value after water addition, the fourth pneumatic valve 44 and the second pneumatic valve 42 close, and the first pneumatic valve 43 opens.

[0027] To maintain the stability of the steam flow rate of the input regenerated steam device 3, the high-temperature and high-pressure steam inlet 32 ​​is connected in sequence to a third pneumatic valve 6 and a manual valve 7. The third pneumatic valve 6 is connected to the gas-liquid separator 5, and the manual valve 7 is connected to the gas-liquid separator 5 and the input port 21.

[0028] The superheater 2 is provided with an inlet 21 and an outlet 22.

[0029] To determine the temperature change before and after overheating, a first thermometer 8 is connected to the output port 22, and a second thermometer 9 is provided between the regenerated steam outlet 31 and the regenerated steam inlet 24.

[0030] The regenerated steam device 3 is equipped with a level gauge 10, which is used to monitor the liquid level of the regenerated steam device 3.

[0031] This invention uses high-temperature, high-pressure steam as a heat source to heat the regenerated steam in the superheater 2. After heat exchange, the high-temperature, high-pressure steam is separated into a water phase and a vapor phase by a gas-liquid separator 5. The vapor phase is returned to the regenerated steam unit 3 for power steam recycling, while the heated regenerated steam significantly reduces its moisture content while increasing its temperature, ultimately producing superheated steam. Compared with the prior art, the regenerated steam superheating system 1 of this invention produces steam with low moisture content and high temperature, meeting the specific process requirements of crispy noodle production.

[0032] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A regenerative steam superheating system for an energy saving apparatus of an evaporator, characterized by, It includes a superheater (2), a regenerated steam device (3) and a water supply line (4). The superheater (2) is provided with a high-temperature and high-pressure steam outlet (23). The regenerated steam device (3) is provided with a high-temperature and high-pressure steam inlet (32) and a regenerated steam outlet (31). The high-temperature and high-pressure steam outlet (23) is connected to the high-temperature and high-pressure steam inlet (32) and the water supply line respectively through a gas-liquid separator (5). The water supply line is connected to the regenerated steam device (3). The regenerated steam outlet (31) is connected to the superheater (2).

2. The regenerated steam superheating system according to claim 1, characterized in that, The superheater (2) is provided with a regenerated steam inlet (24), which is connected to the regenerated steam outlet (31).

3. The regenerated steam superheating system according to claim 1, characterized in that, The water supply pipeline includes a water tank (41), which is provided with a condensate inlet (411) and a soft water inlet (412). The condensate inlet (411) is connected to the gas-liquid separator (5).

4. The regenerated steam superheating system according to claim 3, characterized in that, The water tank (41) is provided with a condensate outlet (413), and the regenerated steam device (3) is provided with a water inlet (33). The condensate outlet (413) is connected to the water inlet (33).

5. The regenerated steam superheating system according to claim 4, characterized in that, A second pneumatic valve (42) is provided between the condensate outlet (413) and the water inlet (33).

6. The regenerated steam superheating system according to claim 3, characterized in that, The water supply pipeline (4) also includes a first pneumatic valve (43) and a fourth pneumatic valve (44). The water tank (41) is provided with an overflow port (414). The first pneumatic valve (43) is connected to the overflow port (414), and the fourth pneumatic valve (44) is connected to the soft water inlet (412).

7. The regenerated steam superheating system according to claim 2, characterized in that, The high-temperature and high-pressure steam inlet (32) is connected in sequence to a third pneumatic valve (6) and a manual valve (7), and the third pneumatic valve (6) is connected to the gas-liquid separator (5).

8. The regenerated steam superheating system according to claim 1, characterized in that, The superheater (2) is provided with an inlet (21) and an outlet (22).

9. The regenerated steam superheating system according to claim 8, characterized in that, The output port (22) is connected to a first thermometer (8), and a second thermometer (9) is provided between the regenerated steam outlet (31) and the regenerated steam inlet (24).

10. The regenerated steam superheating system according to claim 1, characterized in that, The regenerated steam device (3) is equipped with a level gauge (10), which is used to monitor the level of the regenerated steam device (3).

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