Superheated steam temperature regulating device
By using a high thermal conductivity hollow semi-spiral plate and cooling water exchange in the superheated steam temperature regulating device, combined with emergency cooling by atomizing nozzles, the problem of increased water carryover caused by water spraying was solved, improving the efficiency of steam temperature regulation and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANTOU CHENGDE THERMAL POWER CO LTD
- Filing Date
- 2025-01-09
- Publication Date
- 2026-06-09
AI Technical Summary
In the existing technology, when water is sprayed into superheated steam to regulate the temperature, excessive water spraying will lead to an increase in the water carryover rate, which will affect the safety of the superheater piping system.
Design a superheated steam temperature regulation device that utilizes a high thermal conductivity hollow semi-spiral plate and cooling water for heat exchange, combined with an atomizing nozzle for emergency cooling. The device controls the injection of cooling water and the use of the atomizing nozzle through a probe-type temperature sensor, reducing reliance on water spray and improving steam cooling efficiency.
It achieves efficient regulation of superheated steam temperature, reduces reliance on water spraying methods, ensures the safety and service life of downstream equipment, and reduces steam carryover rate.
Smart Images
Figure CN224340108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam temperature control technology, and in particular to a superheated steam temperature regulating device. Background Technology
[0002] A superheated steam temperature regulating device is a device used to control and regulate the temperature of superheated steam. In industrial production, superheated steam is often used in power generation, chemical industry, petroleum and other fields. Its temperature stability is crucial to the efficiency and safety of the production process. If the superheated steam temperature is too high, it will have a significant negative impact on the service life of downstream equipment, while if the superheated steam temperature is too low, it will have a significant negative impact on production processes with temperature requirements, leading to an increase in the defect rate.
[0003] While spraying water into the steam can reduce the temperature of superheated steam, excessive water spraying can increase the water carryover rate of the superheated steam, affecting the safety of the superheater piping system.
[0004] Therefore, in view of the situation where water spraying into the superheated steam can reduce the temperature, but excessive water spraying will increase the water carryover rate of the superheated steam and affect the safety of the superheater piping system, a superheated steam temperature regulating device can be designed to reduce the dependence of the temperature regulating device on the water spraying method. This method can be used only as an emergency measure, and the steam temperature can be reduced by other adjustable heat exchange methods under normal conditions to solve the above problems. Utility Model Content
[0005] To overcome the situation where, although spraying water into the steam can reduce the temperature during the process of lowering the superheated steam temperature, excessive water spraying can lead to an increased water carryover rate in the superheated steam, which could affect the safety of the superheater piping system.
[0006] The technical solution of this utility model is as follows: a superheated steam temperature regulating device, including a channel pipe; and a high thermal conductivity hollow semi-spiral plate. A first hollow fixing ring is installed inside the channel pipe, and a second hollow fixing ring is installed on one side of the first hollow fixing ring. Multiple high thermal conductivity hollow semi-spiral plates are installed and connected inside both the first and second hollow fixing rings. Geared columns are installed on both sides inside the channel pipe. A first probe-type temperature sensor is installed in the geared column on one side, and a second probe-type temperature sensor is installed in the geared column on the other side. Water inlets are opened at the lower ends of both the first and second hollow fixing rings, and drain outlets are opened at the upper ends of both the first and second hollow fixing rings. An atomizing nozzle is provided at the upper end between the second hollow fixing ring and the second probe-type temperature sensor.
[0007] Preferably, after steam enters the channel tube from the side where the first probe-type temperature sensor is located, the increased heat conduction area on the toothed column due to its toothed structure allows the toothed column to quickly absorb heat. This enables the first probe-type temperature sensor to measure the temperature of the steam just entering the channel tube based on the temperature on the toothed column. If the steam temperature is too high and exceeds the first threshold of the controller, cooling water is continuously injected into the first hollow fixing ring from the inlet. If the steam temperature exceeds not only the first threshold but also the second threshold, cooling water is simultaneously injected into the second hollow fixing ring. The hot steam will pass through the highly thermally conductive hollow semi-circular ring... During the process of heat exchange between the spiral plates and the cooling water, the steam is cooled down. The presence of the high thermal conductivity hollow semi-spiral plates not only increases the heat exchange area, but also allows the steam to rotate as it moves forward, increasing the probability of direct contact between the molecules in the steam and the high thermal conductivity hollow semi-spiral plates, thereby significantly increasing the cooling efficiency of the steam. The heat-absorbing cooling water is discharged from the drain. Subsequently, if the second probe-type temperature sensor detects that the temperature of the steam cooled by the high thermal conductivity hollow semi-spiral plates still exceeds the first threshold of the controller, water mist is sprayed downwards through the atomizing nozzle for emergency cooling.
[0008] Preferably, the atomizing nozzle is installed on one side of the upper end of the channel tube, and a low thermal conductivity cantilever bracket is fixed to the middle of the upper end of the channel tube.
[0009] As a preferred option, a controller is installed at the upper end of the low thermal conductivity cantilever bracket, and flanges are fixed to both sides of the channel pipe.
[0010] Preferably, a first electrically controlled valve is installed on the water inlet at the lower end of the first hollow fixed ring, and a second electrically controlled valve is installed on the water inlet at the lower end of the second hollow fixed ring.
[0011] Preferably, a third electrically controlled valve is provided on one side of the second electrically controlled valve, and a three-part water supply pipe is installed at the lower ends of the first electrically controlled valve, the second electrically controlled valve, and the third electrically controlled valve.
[0012] Preferably, a connecting pipe is installed at the upper end of the third electrically controlled valve, and the upper end of the connecting pipe is connected to the atomizing nozzle. A drain pipe is connected to the drain outlet at the upper end of the first hollow fixed ring and the drain outlet at the upper end of the second hollow fixed ring.
[0013] Preferably, both the first probe-type temperature sensor and the second probe-type temperature sensor are electrically connected to the controller, and the controller is electrically connected to the first electrically controlled valve, the second electrically controlled valve, and the third electrically controlled valve.
[0014] The beneficial effects of this utility model are:
[0015] By setting up a first hollow fixing ring and a second hollow fixing ring, after steam enters the channel tube from the side where the first probe-type temperature sensor is located, the toothed column rapidly absorbs heat due to the significantly increased heat conduction area caused by the toothed structure. This allows the first probe-type temperature sensor to measure the temperature of the steam just entering the channel tube based on the temperature of the toothed column. If the steam temperature is too high and exceeds the first threshold of the controller, cooling water is continuously injected into the first hollow fixing ring from the inlet. If the steam temperature still exceeds the second threshold, cooling water is simultaneously injected into the second hollow fixing ring. The hot steam exchanges heat with the cooling water as it passes through the gaps between the high thermal conductivity hollow semi-spiral plates. The presence of the high thermal conductivity hollow semi-spiral plates not only increases heat exchange... The area of the steam plate allows it to rotate as it moves forward, increasing the probability of direct contact between the steam molecules and the high thermal conductivity hollow semi-spiral plate. This significantly increases the cooling efficiency of the steam. Subsequently, if the second probe-type temperature sensor detects that the steam temperature, even after being cooled by the high thermal conductivity hollow semi-spiral plate, still exceeds the first threshold of the controller, water mist is sprayed downwards through the atomizing nozzle for emergency cooling. This allows the device to adjust the cooling effect on the hot steam. Water is only sprayed into the steam as an emergency measure when the steam temperature is abnormal and the first and second hollow fixing rings alone cannot effectively cool it. This ensures the service life of downstream equipment and reduces the dependence of the temperature control device on water spraying, thereby suppressing the increase in the water carryover rate of the hot steam. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of a superheated steam temperature regulating device according to this utility model.
[0017] Figure 2 The diagram shown is a schematic diagram of the toothed column structure of a superheated steam temperature regulating device according to this utility model.
[0018] Figure 3 The diagram shown is a schematic diagram of the drain outlet structure of a superheated steam temperature regulating device according to this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the atomizing nozzle structure of a superheated steam temperature regulating device according to this utility model.
[0020] Figure 5 The diagram shown is a schematic diagram of the channel pipe structure of a superheated steam temperature regulating device according to this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Channel pipe; 2. First hollow fixing ring; 3. Second hollow fixing ring; 4. High thermal conductivity hollow semi-spiral plate; 5. Geared column; 6. First probe-type temperature sensor; 7. Water inlet; 8. Drain outlet; 9. Atomizing nozzle; 10. Flange; 11. Low thermal conductivity cantilever bracket; 12. Controller; 13. First electrically controlled valve; 14. Second electrically controlled valve; 15. Third electrically controlled valve; 16. Three-way water supply pipe; 17. Manifold drain pipe; 18. Second probe-type temperature sensor; 19. Connecting pipe. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment of a superheated steam temperature regulating device, including a channel pipe 1; it also includes a high thermal conductivity hollow semi-spiral plate 4. A first hollow fixing ring 2 is installed inside the channel pipe 1, and a second hollow fixing ring 3 is installed on one side of the first hollow fixing ring 2. Both the first hollow fixing ring 2 and the second hollow fixing ring 3 are equipped with and connected to multiple high thermal conductivity hollow semi-spiral plates 4. Geared columns 5 are installed on both sides inside the channel pipe 1. A first probe-type temperature sensor 6 is installed in one toothed column 5, and the other toothed column 5... A second probe-type temperature sensor 18 is installed inside the 5th cavity. Water inlets 7 are provided at the lower ends of both the first hollow fixing ring 2 and the second hollow fixing ring 3, and drain outlets 8 are provided at the upper ends of both. An atomizing nozzle 9 is provided at the upper end between the second hollow fixing ring 3 and the second probe-type temperature sensor 18. Steam enters the channel pipe 1 from the side where the first probe-type temperature sensor 6 is located. The increased heat conduction area on the toothed column 5 due to its toothed structure allows the toothed column 5 to quickly absorb heat, thus allowing the first probe-type temperature sensor 18 to... Sensor 6 measures the temperature of the steam entering the channel pipe 1 by measuring the temperature on the toothed column 5. If the steam temperature is too high and exceeds the first threshold of the controller 12, cooling water is continuously injected into the first hollow fixed ring 2 from the water inlet 7. If the steam temperature exceeds not only the first threshold but also the second threshold, cooling water is simultaneously injected into the second hollow fixed ring 3. The hot steam exchanges heat with the cooling water as it passes through the gap between the high thermal conductivity hollow semi-spiral plates 4 to achieve cooling. The presence of the high thermal conductivity hollow semi-spiral plates 4 not only increases the heat exchange... The increased surface area allows the steam to rotate as it moves forward, increasing the probability of the steam molecules coming into direct contact with the high thermal conductivity hollow semi-spiral plate 4, thereby significantly increasing the cooling efficiency of the steam. The heat-absorbing cooling water is discharged from the drain port 8. Subsequently, if the second probe-type temperature sensor 18 detects that the temperature of the steam cooled by the high thermal conductivity hollow semi-spiral plate 4 still exceeds the first threshold of the controller 12, water mist is sprayed downwards through the atomizing nozzle 9 for emergency cooling. The probe-type temperature sensor model is set to WZP-PT100.
[0024] Please see Figures 1-4In this embodiment, the atomizing nozzle 9 is installed on one side of the upper end of the channel tube 1. A low thermal conductivity cantilever bracket 11 is fixedly connected to the middle of the upper end of the channel tube 1. The low thermal conductivity cantilever bracket 11 is used to fix the controller 12 and suppress the heat conduction from the channel tube 1 to the controller 12. The controller 12 is installed at the upper end of the low thermal conductivity cantilever bracket 11. Flanges 10 are fixedly connected to both sides of the channel tube 1. The controller 12 is used to receive temperature information from the first probe-type temperature sensor 6 and the second probe-type temperature sensor 18, and to control the opening and closing of the first electrically controlled valve 13, the second electrically controlled valve 14 and the third electrically controlled valve 15. The first electrically controlled valve 13 is installed on the water inlet 7 at the lower end of the first hollow fixed ring 2, and the second electrically controlled valve 14 is installed on the water inlet 7 at the lower end of the second hollow fixed ring 3.
[0025] Please see Figure 1 , Figure 3 and Figure 4 In this embodiment, a third electric control valve 15 is provided on one side of the second electric control valve 14. A three-part water supply pipe 16 is installed at the lower ends of the first electric control valve 13, the second electric control valve 14, and the third electric control valve 15. The three-part water supply pipe 16 is used to connect to the cooling water source. A connecting pipe 19 is installed at the upper end of the third electric control valve 15. The upper end of the connecting pipe 19 is connected to the atomizing nozzle 9. A manifold drain pipe 17 is connected to the drain outlet 8 at the upper end of the first hollow fixing ring 2 and the drain outlet 8 at the upper end of the second hollow fixing ring 3. The manifold drain pipe 17 is used to discharge the heat-absorbing cooling water from the drain outlet 8 to a designated location. The first probe-type temperature sensor 6 and the second probe-type temperature sensor 18 are both electrically connected to the controller 12. The controller 12 is electrically connected to the first electric control valve 13, the second electric control valve 14, and the third electric control valve 15.
[0026] In use, first connect the three-part water supply pipe 16 to the cooling water source. Steam enters the channel pipe 1 from the side where the first probe-type temperature sensor 6 is located. Due to the significantly increased heat conduction area on the toothed column 5 caused by its toothed structure, the toothed column 5 quickly absorbs heat. This allows the first probe-type temperature sensor 6 to measure the temperature of the steam entering the channel pipe 1 based on the temperature of the toothed column 5. If the steam temperature is too high and exceeds the first threshold of the controller 12, the controller 12 opens the first electrically controlled valve 13 to continuously inject cooling water into the first hollow fixed ring 2 from the inlet 7. If the steam temperature exceeds not only the first threshold of the controller 12 but also the second threshold, the controller 12 simultaneously opens the second electrically controlled valve 14 to continuously inject cooling water into the second hollow fixed ring 3. The hot steam will... During the process of passing through the gap between the high thermal conductivity hollow semi-spiral plates 4, the steam exchanges heat with the cooling water to achieve cooling. The presence of the high thermal conductivity hollow semi-spiral plates 4 not only increases the heat exchange area, but also allows the steam to rotate as it moves forward, increasing the probability of the molecules in the steam coming into direct contact with the high thermal conductivity hollow semi-spiral plates 4, thereby greatly increasing the cooling efficiency of the steam. The heat-absorbing cooling water is discharged from the drain port 8 and discharged to a designated location through the manifold drain pipe 17. Subsequently, if the second probe-type temperature sensor 18 detects that the temperature of the steam cooled by the high thermal conductivity hollow semi-spiral plates 4 still exceeds the first threshold of the controller 12, the controller 12 opens the third electronically controlled valve 15 to spray water mist downward through the connecting pipe 19 to urgently cool the hot steam.
[0027] Through the above steps, by setting a first hollow fixing ring 2 and a second hollow fixing ring 3, after steam enters the channel pipe 1 from the side where the first probe-type temperature sensor 6 is located, the toothed column 5 absorbs heat rapidly due to the significantly increased heat conduction area caused by the toothed structure. This allows the first probe-type temperature sensor 6 to measure the temperature of the steam that has just entered the channel pipe 1 through the temperature on the toothed column 5. If the steam temperature is too high and exceeds the first threshold of the controller 12, cooling water is continuously injected into the first hollow fixing ring 2 from the water inlet 7. If the steam temperature also exceeds the second threshold, cooling water is simultaneously injected into the second hollow fixing ring 3. The hot steam will exchange heat with the cooling water as it passes through the gap between the high thermal conductivity hollow semi-spiral plates 4. The presence of the high thermal conductivity hollow semi-spiral plates 4 does not... This not only increases the heat exchange area but also allows the steam to rotate as it moves forward, increasing the probability of direct contact between the steam molecules and the high thermal conductivity hollow semi-spiral plate 4. This significantly increases the steam cooling efficiency. Subsequently, if the second probe-type temperature sensor 18 detects that the steam temperature, even after being cooled by the high thermal conductivity hollow semi-spiral plate 4, still exceeds the first threshold of the controller 12, water mist is sprayed downwards through the atomizing nozzle 9 for emergency cooling. This allows the device to adjust the cooling intensity of the hot steam. Water is only sprayed into the steam as an emergency measure when the steam temperature is abnormal and the first hollow fixing ring 2 and the second hollow fixing ring 3 alone cannot effectively cool it. This ensures the service life of downstream equipment and reduces the dependence of the temperature regulation device on the water spraying method, thereby suppressing the increase in the water carryover rate of the hot steam.
Claims
1. A superheated steam temperature regulating device, comprising a channel pipe (1); characterized in that: It also includes a high thermal conductivity hollow semi-spiral plate (4), a first hollow fixing ring (2) is installed inside the channel tube (1), a second hollow fixing ring (3) is installed on one side of the first hollow fixing ring (2), and multiple high thermal conductivity hollow semi-spiral plates (4) are installed inside the first hollow fixing ring (2) and the second hollow fixing ring (3). Geared columns (5) are installed on both sides inside the channel tube (1). A first probe-type temperature sensor (6) is installed in the geared column (5) on one side, and a second probe-type temperature sensor (18) is installed in the geared column (5) on the other side. A water inlet (7) is opened at the lower end of the first hollow fixing ring (2) and the second hollow fixing ring (3). A drain outlet (8) is opened at the upper end of the first hollow fixing ring (2) and the second hollow fixing ring (3). An atomizing nozzle (9) is provided at the upper end between the second hollow fixing ring (3) and the second probe-type temperature sensor (18).
2. The superheated steam temperature regulating device according to claim 1, characterized in that: The atomizing nozzle (9) is installed on one side of the upper end of the channel tube (1), and a low thermal conductivity cantilever bracket (11) is fixed in the middle of the upper end of the channel tube (1).
3. The superheated steam temperature regulating device according to claim 2, characterized in that: A controller (12) is installed at the upper end of the low thermal conductivity cantilever bracket (11), and flanges (10) are fixed to both sides of the channel pipe (1).
4. The superheated steam temperature regulating device according to claim 1, characterized in that: A first electrically controlled valve (13) is installed on the water inlet (7) at the lower end of the first hollow fixed ring (2), and a second electrically controlled valve (14) is installed on the water inlet (7) at the lower end of the second hollow fixed ring (3).
5. The superheated steam temperature regulating device according to claim 4, characterized in that: A third electric control valve (15) is provided on one side of the second electric control valve (14). The lower ends of the first electric control valve (13), the second electric control valve (14), and the third electric control valve (15) are all equipped with three water supply pipes (16).
6. The superheated steam temperature regulating device according to claim 5, characterized in that: The upper end of the third electric control valve (15) is equipped with a connecting pipe (19), the upper end of the connecting pipe (19) is connected to the atomizing nozzle (9), and the drain outlet (8) at the upper end of the first hollow fixing ring (2) and the drain outlet (8) at the upper end of the second hollow fixing ring (3) are connected to a common drain pipe (17).
7. The superheated steam temperature regulating device according to claim 6, characterized in that: The first probe-type temperature sensor (6) and the second probe-type temperature sensor (18) are both electrically connected to the controller (12), and the controller (12) is electrically connected to the first electrically controlled valve (13), the second electrically controlled valve (14) and the third electrically controlled valve (15).