Split type steam temperature and pressure reduction device

Abstract

The split type steam temperature and pressure reducing device comprises a pressure reducing valve, the side surface of the pressure reducing valve is fixedly connected with a first gas conveying pipe, the end, away from the pressure reducing valve, of the first gas conveying pipe is fixedly connected with a regulating valve, and the end, away from the first gas conveying pipe, of the regulating valve is fixedly connected with a second gas conveying pipe. Flanges are fixedly connected to two ends of the gas conveying pipe I and the gas conveying pipe II; the output end of the water pump is fixedly connected with a second cooling pipe through a water supply pipe, the inner wall of the side of the second cooling pipe is fixedly connected with a guide plate, the second cooling pipe is fixedly connected with a first cooling pipe through a communicating pipe, the first cooling pipe is fixedly connected with a cooling pipe through a water return pipe, and the side surface of the water return pipe is fixedly connected with a water tank. By means of the components, the pressure reducing valve and the adjusting valve can be assembled together through the flanges on the first gas conveying pipe and the second gas conveying pipe, steam can be secondarily cooled through cooling water, and the situation that the service life of the pipeline is affected due to the fact that the local temperature in the pipeline is suddenly changed when the cooling water with the low temperature makes contact with high-temperature steam is avoided.

Description

Technical Field

[0001] This utility model relates to the field of de-cooling and de-pressure technology, and in particular to a split-type steam de-cooling and de-pressure device. Background Technology

[0002] In industrial production, steam desuperheating and pressure reducing devices are widely used in energy conversion, chemical processing, food processing, and other fields to precisely control steam parameters to meet the needs of different processes. However, existing steam desuperheating and pressure reducing devices have several problems. First, the compact overall structure of the device results in the pressure reducing valve, regulating valve, and gas transmission pipe being integrally formed. This makes them highly susceptible to damage during transportation due to their large size and complex structure, and also increases transportation costs. Second, in terms of steam cooling, traditional devices often use direct injection of cold water into the pipeline to cool the steam. This method causes sudden cooling and heating in certain areas of the pipeline. The rapid temperature changes can easily lead to metal fatigue, resulting in gas transmission pipe breakage and severely affecting the lifespan of the device. Simultaneously, the evaporation of cold water corrodes the pipeline, causing pipe rupture and equipment damage. Furthermore, the evaporated substances contaminate the steam, affecting the normal operation of the device. In addition, existing devices lack an effective recycling mechanism for cooling water; the used cooling water is directly discharged, wasting water resources and increasing operating costs. Therefore, a new type of steam desuperheating and pressure reducing device is needed to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a split-type steam desuperheating and pressure reducing device. This device allows the pressure reducing valve, regulating valve, and two sets of gas supply pipes to be assembled together via flanges, facilitating transportation. Cooling water flows along a cooling pipe fitted outside the gas supply pipe in the opposite direction to the steam flow, reducing the temperature difference between the cooling water and steam. This prevents rapid temperature changes during cooling, which could lead to metal fatigue and breakage of the gas supply pipe and cooling pipe, thus improving the service life of the pipeline. The used cooling water is then sent to a cooling pipe in a water tank, ensuring full contact with the water in the tank before being discharged back into the tank for recycling. This also solves the problem of existing steam cooling devices that directly spray cold water into the pipeline to cool the steam, causing localized sudden cooling and heating within the pipeline. Furthermore, the evaporation of the cold water corrodes the pipeline and contaminates the steam after evaporation, leading to pipeline rupture and equipment damage, thus affecting the normal operation of the device.

[0004] This utility model also provides a split-type steam desuperheating and pressure reducing device, including: a pressure reducing valve, a gas supply pipe one fixedly connected to the side surface of the pressure reducing valve, a regulating valve fixedly connected to the end of the gas supply pipe one away from the pressure reducing valve, a gas supply pipe two fixedly connected to the end of the regulating valve away from the gas supply pipe one, and flanges fixedly connected to both ends of the gas supply pipe one and the gas supply pipe two.

[0005] A water pump is included. The output end of the water pump is fixedly connected to a second cooling pipe via a water supply pipe. The side surface of the second gas supply pipe is fixedly connected to the second cooling pipe. A guide plate is fixedly connected to the inner wall of the second cooling pipe. The second cooling pipe is fixedly connected to a first cooling pipe via a connecting pipe. The side surface of the first gas supply pipe is fixedly connected to the first cooling pipe. The first cooling pipe is fixedly connected to a cooling pipe via a return water pipe. A water tank is fixedly connected to the side surface of the return water pipe. Using these components, a pressure reducing valve and a regulating valve can be assembled together using flanges on the first and second gas supply pipes. This allows cooling water to flow along the second and first cooling pipes to provide secondary cooling of the steam while preventing the cooler cooling water from contacting the high-temperature steam, thus avoiding sudden temperature changes in the pipeline and affecting its lifespan.

[0006] According to the present invention, a split-type steam desuperheating and pressure reducing device is provided, wherein the first gas supply pipe is located between the pressure reducing valve and the regulating valve, and the regulating valve is located between the first gas supply pipe and the second gas supply pipe. This allows high-temperature, high-pressure steam to become high-temperature, low-pressure steam after passing through the pressure reducing valve, and then becomes low-temperature, low-pressure steam after passing through the first and second gas supply pipes.

[0007] According to the present invention, a split-type steam desuperheating and depressurization device is provided, wherein heat dissipation fins are fixedly connected to the side surface of the water tank, and the water tank is fixedly connected to a water pump via a pipe. The heat dissipation fins can be used to accelerate the cooling rate of the cooling water in the water tank.

[0008] According to the present invention, a split-type steam desuperheating and pressure reducing device is provided, wherein a water outlet is fixedly connected to the side surface of the first cooling pipe, and the inner wall of the first water outlet is fixedly connected to a return water pipe. Cooling water flowing through the first cooling pipe can be sent into a water tank through the first water outlet and the return water pipe.

[0009] According to the present invention, a split-type steam desuperheating and depressurization device is provided, wherein a water inlet is fixedly connected to the side surface of the first cooling pipe, and the inner wall of the first water inlet is fixedly connected to a connecting pipe. This allows cooling water in the second cooling pipe to be fed into the first cooling pipe through the connecting pipe and the first water inlet.

[0010] According to the present invention, a split-type steam desuperheating and depressurization device is provided, wherein a second water outlet is fixedly connected to the side surface of the second cooling pipe, and the inner wall of the second water outlet is fixedly connected to a connecting pipe. Cooling water in the second cooling pipe is fed into the first cooling pipe through the second water outlet and the connecting pipe.

[0011] According to the present invention, a split-type steam desuperheating and depressurization device is provided, wherein a second water inlet is fixedly connected to the side surface of the second cooling pipe, and the inner wall of the second water inlet is fixedly connected to a water supply pipe. A water pump then delivers water from the water tank through the water supply pipe and the second water inlet into the second cooling pipe.

[0012] According to the present invention, a split-type steam desuperheating and depressurization device is provided, wherein a fixing block is fixedly connected to the lower bottom wall of the water tank, and the side surface of the fixing block is fixedly connected to the cooling pipe. The fixing block is used to fix the cooling pipe inside the water tank.

[0013] Beneficial effects:

[0014] This technical solution's split-type steam desuperheating and pressure reducing device assembles the pressure reducing valve, regulating valve, and two sets of gas transmission pipes together via flanges, facilitating transportation. It allows cooling water to flow along a cooling pipe fitted outside the gas transmission pipes, opposite to the steam flow, reducing the temperature difference between the cooling water and steam. This prevents rapid temperature changes during cooling, avoiding metal fatigue and potential breakage of the gas transmission and cooling pipes, thus extending the pipeline's service life. Used cooling water is then sent to a cooling pipe in a water tank, ensuring full contact with the water in the tank before being discharged back into the tank for recycling. This solution also solves the problem of existing steam cooling devices that directly spray cold water into the pipeline to cool the steam, causing localized sudden cooling and heating within the pipeline. Furthermore, the evaporation of cold water corrodes the pipeline and contaminates the steam after evaporation, potentially leading to pipeline rupture and equipment damage, thus affecting the normal operation of the device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of the split-type steam desuperheating and pressure reducing device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the cooling pipe of the split-type steam desuperheating and pressure reducing device of this utility model;

[0018] Figure 3 This is a structural diagram of the cooling pipe 2 of the split-type steam desuperheating and pressure reducing device of this utility model;

[0019] Figure 4 This is a cross-sectional view of the water tank of the split-type steam desuperheating and depressurization device of this utility model.

[0020] Legend:

[0021] 1. Pressure reducing valve; 2. Cooling pipe 1; 3. Outlet 1; 4. Inlet 1; 5. Regulating valve; 6. Cooling pipe 2; 7. Outlet 2; 8. Inlet 2; 9. Water pump; 10. Return pipe; 11. Connecting pipe; 12. Water supply pipe; 13. Flange; 14. Gas supply pipe 1; 15. Gas supply pipe 2; 16. Water tank; 17. Heat dissipation fins; 18. Guide plate; 19. Cooling pipe; 20. Fixing clip. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model provides a split-type steam desuperheating and pressure reducing device, which includes: a pressure reducing valve 1, a gas supply pipe 14 fixedly connected to the side surface of the pressure reducing valve 1, the gas supply pipe 14 being located between the pressure reducing valve 1 and the regulating valve 5, the regulating valve 5 being fixedly connected to the end of the gas supply pipe 14 away from the pressure reducing valve 1, the regulating valve 5 being located between the gas supply pipe 14 and the gas supply pipe 2 15, the gas supply pipe 2 15 being fixedly connected to the end of the regulating valve 5 away from the gas supply pipe 14, and flanges 13 being fixedly connected to both ends of the gas supply pipe 14 and the gas supply pipe 2 15.

[0024] Specifically, before use, pressure reducing valve 1, gas transmission pipe 14, regulating valve 5 and gas transmission pipe 2 15 are connected in sequence, and fixed to pressure reducing valve 1 and regulating valve 5 by flanges 13 at both ends of gas transmission pipe 14 and gas transmission pipe 2 15 to facilitate steam transportation. When the pipeline for transporting steam is connected to pressure reducing valve 1 and high-temperature and high-pressure steam is introduced, the pressure reducing valve 1 reduces the pressure of the steam, turning the high-temperature and high-pressure steam into high-temperature and low-pressure steam, and then discharges it into gas transmission pipe 14 for a first cooling. Then, the regulating valve 5 regulates the steam flow rate transported by gas transmission pipe 14, and then the steam is sent into gas transmission pipe 2 15 for a second cooling, thereby turning the high-temperature and low-pressure steam into low-temperature and low-pressure steam.

[0025] Water pump 9, the output end of water pump 9 is fixedly connected to cooling pipe 2 6 through water supply pipe 12, the side surface of air supply pipe 2 15 is fixedly connected to cooling pipe 2 6, the inner side wall of cooling pipe 2 6 is fixedly connected to guide plate 18, cooling pipe 2 6 is fixedly connected to cooling pipe 1 2 through connecting pipe 11, the side surface of air supply pipe 1 14 is fixedly connected to cooling pipe 1 2, cooling pipe 1 2 is fixedly connected to cooling pipe 19 through return water pipe 10, and water tank 16 is fixedly connected to the side surface of return water pipe 10.

[0026] Specifically, water pump 9 injects water from water tank 16 into cooling pipe 2 6 through water supply pipe 12. Cooling pipe 2 6 is equipped with a spiral guide plate 18. When the cooling water enters cooling pipe 2 6, it flows along the guide plate 18, increasing the contact area between the cooling water and cooling pipe 2 6, enhancing the cooling effect on the steam in steam transmission pipe 2 15. After absorbing some heat, the cooling water flows out from outlet 2 7 and enters cooling pipe 1 2 through connecting pipe 11 to absorb heat from the steam in steam transmission pipe 1 14. The water enters the cooling pipe 19 in the water tank 16 through the return pipe 10. The water in the water tank 16 is used to cool the water before it is discharged back into the water tank 16. The lower temperature cooling water is used in the cooling pipe 2 6 to cool the steam in the gas transmission pipe 2 15 for a second time. The cooling water that has absorbed heat and been heated is sent to the cooling pipe 1 2 for a first cooling. This avoids the situation where the temperature drops suddenly due to the large temperature difference when the low temperature cooling water comes into contact with the high temperature steam, which could cause metal fatigue and damage to the cooling pipe 1 2 and the gas transmission pipe 1 14.

[0027] The side surface of the water tank 16 is fixedly connected to the heat dissipation fins 17. The water tank 16 is fixedly connected to the water pump 9 through the pipe. The bottom wall of the water tank 16 is fixedly connected to the fixing block 20. The side surface of the fixing block 20 is fixedly connected to the cooling pipe 19.

[0028] Specifically, by adding heat dissipation fins 17 to the outside of the water tank 16, the heat dissipation rate of the water tank 16 is improved, so that the water that has absorbed heat can be cooled quickly after entering the water tank 16. Cooling water can be added to the water tank 16 through the water inlet at the top of the water tank 16. A fixing block 20 is also provided at the bottom of the water tank 16, which can be used to position the cooling pipe 19, so that the water in the water tank 16 can be used to cool the cooling pipe 19.

[0029] A water outlet 3 is fixedly connected to the side surface of cooling pipe 2. The inner wall of the water outlet 3 is fixedly connected to the return water pipe 10. A water inlet 4 is fixedly connected to the side surface of cooling pipe 2. The inner wall of the water inlet 4 is fixedly connected to the connecting pipe 11. A water outlet 7 is fixedly connected to the side surface of cooling pipe 6. The inner wall of the water outlet 7 is fixedly connected to the connecting pipe 11. A water inlet 8 is fixedly connected to the side surface of cooling pipe 6. The inner wall of the water inlet 8 is fixedly connected to the water supply pipe 12.

[0030] Specifically, cooling pipe 12 and cooling pipe 26 are respectively provided with outlet 13, inlet 14 and outlet 27, inlet 28, which are used to allow cooling water to flow through cooling pipe 12 and cooling pipe 26 and cool the steam in gas transmission pipe 14 and gas transmission pipe 25.

[0031] Working principle: Before use, gas supply pipe 14 and gas supply pipe 25 can be connected to pressure reducing valve 1 and regulating valve 5 through flanges 13 at both ends for easy transport in disassembled state. Then, water supply pipe 12, connecting pipe 11, and return water pipe 10 are connected to the pipeline to connect cooling pipe 12, cooling pipe 26, and water tank 16. High-temperature and high-pressure steam is then introduced, which is converted into high-temperature and low-pressure steam after passing through pressure reducing valve 1. Then, lower-temperature cooling water is pumped into cooling pipe 26 through water pump 9, flowing along guide plate 18 and purifying the steam in gas supply pipe 25. After absorbing heat during the second cooling process, the steam in the gas transmission pipe 14 is cooled again through the connecting pipe 11 into the cooling pipe 2. This transforms the high-temperature, low-pressure steam in the gas transmission pipe 15 into low-temperature, low-pressure steam. This allows the cooling water to be preheated during the second cooling of the steam, reducing the temperature difference between the cooling water in the cooling pipe 2 and the steam in the gas transmission pipe 14. The water then returns to the cooling pipe 19 in the water tank 16, where it is cooled by the water in the water tank 16 and flows back into the water tank 16. This allows the cooling water to be recycled and improves the heat exchange rate of the cooling water.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A split-type steam desuperheating and pressure reducing device, characterized in that, include: Pressure reducing valve (1), with a gas supply pipe one (14) fixedly connected to the side surface of the pressure reducing valve (1), a regulating valve (5) fixedly connected to the end of the gas supply pipe one (14) away from the pressure reducing valve (1), and a gas supply pipe two (15) fixedly connected to the end of the regulating valve (5) away from the gas supply pipe one (14), and flanges (13) fixedly connected to both ends of the gas supply pipe one (14) and the gas supply pipe two (15). A water pump (9) is provided. The output end of the water pump (9) is fixedly connected to a cooling pipe (6) via a water supply pipe (12). The side surface of the gas supply pipe (15) is fixedly connected to the cooling pipe (6). The inner side wall of the cooling pipe (6) is fixedly connected to a guide plate (18). The cooling pipe (6) is fixedly connected to a cooling pipe (2) via a connecting pipe (11). The side surface of the gas supply pipe (14) is fixedly connected to the cooling pipe (2). The cooling pipe (2) is fixedly connected to a cooling pipe (19) via a return water pipe (10). The side surface of the return water pipe (10) is fixedly connected to a water tank (16).

2. The split-type steam desuperheating and pressure reducing device according to claim 1, characterized in that, The first gas supply pipe (14) is located between the pressure reducing valve (1) and the regulating valve (5), and the regulating valve (5) is located between the first gas supply pipe (14) and the second gas supply pipe (15).

3. The split-type steam desuperheating and depressurization device according to claim 1, characterized in that, The side surface of the water tank (16) is fixedly connected to heat dissipation fins (17), and the water tank (16) is fixedly connected to the water pump (9) through a pipe.

4. The split-type steam desuperheating and pressure reducing device according to claim 1, characterized in that, The cooling pipe (2) has an outlet (3) fixedly connected to its side surface, and the inner wall of the outlet (3) is fixedly connected to the return pipe (10).

5. A split-type steam desuperheating and depressurization device according to claim 1, characterized in that, The cooling pipe (2) is fixedly connected to a water inlet (4), and the inner wall of the water inlet (4) is fixedly connected to the connecting pipe (11).

6. A split-type steam desuperheating and depressurization device according to claim 1, characterized in that, The cooling pipe 2 (6) has a water outlet 2 (7) fixedly connected to its side surface, and the inner wall of the water outlet 2 (7) is fixedly connected to the connecting pipe (11).

7. A split-type steam desuperheating and depressurization device according to claim 1, characterized in that, The cooling pipe 2 (6) has a water inlet 2 (8) fixedly connected to its side surface, and the inner wall of the water inlet 2 (8) is fixedly connected to the water supply pipe (12).

8. A split-type steam desuperheating and pressure reducing device according to claim 1, characterized in that, The bottom wall of the water tank (16) is fixedly connected to a fixing block (20), and the side surface of the fixing block (20) is fixedly connected to the cooling pipe (19).

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