High-pressure condensate water flash evaporation device

Abstract

The utility model belongs to the field of high-pressure condensate water flash evaporation devices, and particularly relates to a high-pressure condensate water flash evaporation device which comprises a first-stage flash evaporation device body, the first-stage flash evaporation device body is connected with a connecting pipe through a pipeline, a high-pressure condensate water device is arranged on the outer side of the connecting pipe, and a sealing mechanism is arranged on the outer side of the high-pressure condensate water device. The primary flash evaporation device main body is connected with a primary steam-water separator through a pipeline, and the primary steam-water separator is connected with a first steam superheater through a pipeline. And the primary flash evaporation device main body is connected with a deaerator through a pipeline. According to the scheme, the first-stage flash evaporation device body, the connecting pipe, the high-pressure condensation water device, the first-stage steam-water separator, the first steam superheater and other components are designed, the problem that superheated steam cannot be generated through flash evaporation is solved through multi-stage flash evaporation and the use of the superheating technology, the stability of steam supply is guaranteed through standby application of the superheater, and the production efficiency is improved. And the factory operation economy and stability are improved.

Description

TECHNICAL FIELD

[0001] The scheme belongs to the field of high-pressure condensate water flash device, and particularly relates to a high-pressure condensate water flash device. BACKGROUND

[0002] In the textile industry, steam as an important medium plays an important role in the production process. The steam used in the poly-spinning project has high parameters, and the pressure and temperature of the recycled water are also high. For a long time, the condensate water is pressurized by a high-pressure pump and then enters the boiler feed water system of a power plant to increase the boiler feed water temperature and improve the operation efficiency of the boiler and the economic benefit of the plant. In the prior art, when the condensate water cannot enter the boiler feed water system due to pump failure or other unqualified water quality, a backup system is needed to ensure that the condensate water can be used more efficiently. A more common solution is to flash through a flash tank to produce low-pressure steam, but the flash tank can only produce saturated steam, which cannot meet the demand for long-distance transportation of steam. Currently, other companies are also trying to use auxiliary steam to heat the flash steam to increase the superheat degree of the steam, but the steam production is insufficient due to the need to increase auxiliary steam, and the superheater pipe bursts due to the high-pressure condensate water. Therefore, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the scheme is to provide a high-pressure condensate water flash device to solve the problem that a backup system is needed to ensure that the condensate water can be used more efficiently when the condensate water cannot enter the boiler feed water system due to pump failure or other unqualified water quality. A more common solution is to flash through a flash tank to produce low-pressure steam, but the flash tank can only produce saturated steam, which cannot meet the demand for long-distance transportation of steam. Currently, other companies are also trying to use auxiliary steam to heat the flash steam to increase the superheat degree of the steam, but the steam production is insufficient due to the need to increase auxiliary steam, and the superheater pipe bursts due to the high-pressure condensate water.

[0004] To achieve the above purpose, the utility model provides a high-pressure condensate water flash device, which comprises a primary flash device main body, a connecting pipe is connected to the primary flash device main body through a pipeline, a high-pressure condenser is arranged on the outer side of the connecting pipe, a sealing mechanism is arranged on the outer side of the high-pressure condenser, a primary steam-water separator is connected to the primary flash device main body through a pipeline, a first steam superheater is connected to the primary steam-water separator through a pipeline, a second steam superheater is connected to the first steam superheater through a pipeline, the primary steam-water separator is connected to the second steam superheater through a pipeline, a secondary flash device main body is connected to the primary steam-water separator through a pipeline, the secondary flash device main body is connected to the primary flash device main body through a pipeline, a low-pressure superheated steam generator is connected to the primary steam-water separator through a pipeline, and an oxygen remover is connected to the primary flash device main body through a pipeline.

[0005] The principle of the scheme is that when the connection between the high-pressure condensate water device and the connecting pipe on the device needs to be sealed, the handle is rotated, the rotation of the handle drives the rotation of the screw rod, the screw rod rotates and moves in threads with the connecting sleeve, thereby causing the screw rod to produce relative displacement, the rotation of the screw rod drives the movement of the rotating plate, the annular sleeve and the connecting block and other components, the movement of the connecting block drives the movement of the annular plate, the movement of the annular plate drives the movement of the guide rod and the sealing gasket, the movement of the sealing gasket contacts the connection between the high-pressure condensate water device and the connecting pipe, thereby sealing the connection between the high-pressure condensate water device and the connecting pipe, preventing the connection between the high-pressure condensate water device and the connecting pipe on the device from leaking;

[0006] When the device is used, the overpressure condensate water enters the first-stage flash evaporation device main body through the regulating valve, flash evaporation produces 4.0 MPa.a, 250℃ saturated steam, and after steam-water separation and pressure reduction, 1.2 MPa steam is produced; the condensate water enters the first steam superheater as a heat source for heating the saturated steam in the first steam superheater; in order to ensure the stability of the device, the first steam superheater and the second steam superheater are provided, so that when the first steam superheater fails, the second steam superheater operates to ensure the stability of the system; after heat exchange in the first steam superheater, the condensate water enters the second-stage flash evaporation device main body through the regulating valve, flash evaporation produces 1.2 MPa.a, 188℃ saturated steam which is mixed with the first-stage flash evaporation steam to enter the first steam superheater and is heated to 1.2 MPa.a, 230℃, and then enters the heat supply pipe network for external supply; the unflash-evaporated condensate water enters the oxygen removal device through the booster pump as high-temperature make-up water for the oxygen removal device to raise the make-up water temperature of the oxygen removal device; the high-pressure condensate water flash evaporation process uses two-stage flash evaporation to heat the first-stage flash evaporation non-condensate water to the mixed saturated steam of the second-stage and first-stage flash evaporation in the form of steam, and the heat energy is stepped up to reduce the risk of operation of the superheater under high pressure using pressurized condensate water heating equipment, while avoiding energy loss caused by external heat source heating, and improving the operation economy.

[0007] The technical effect of the scheme is that by designing the first-stage flash evaporation device main body, the connecting pipe, the high-pressure condensate water device, the first-stage steam-water separator and the first steam superheater and other components, and by using multi-stage flash evaporation and superheating process, the problem of flash evaporation being unable to produce superheated steam is solved, and by using the standby superheater, the stability of steam supply is ensured, the operation economy and stability of the plant are improved, by designing the connecting sleeve, the screw rod, the handle, the rotating plate, the connecting block and the first annular groove and other components, the screw rod moves in threads with the connecting sleeve, the rotation of the screw rod drives the movement of the annular plate and other components, the movement of the annular plate drives the movement of the sealing gasket, the movement of the sealing gasket contacts the connection between the high-pressure condensate water device and the connecting pipe, thereby sealing the connection between the high-pressure condensate water device and the connecting pipe, preventing the connection between the high-pressure condensate water device and the connecting pipe on the device from leaking.

[0008] Further, the sealing mechanism comprises a connecting sleeve, the upper part of the high-pressure condensate water device is fixedly connected with the connecting sleeve, the connecting sleeve is in contact with the connecting pipe, a screw rod is threadedly connected in the connecting sleeve, a rotating plate is fixedly connected to the left end of the screw rod, a connecting block is in contact with the left side of the rotating plate, a first annular groove is formed in the connecting block, an annular sleeve is rotatably connected in the first annular groove, the annular sleeve is fixedly connected with the rotating plate, a bolt is threadedly connected in the connecting block, an annular plate is slidably connected in the connecting sleeve, the annular plate is fixedly connected with the connecting block, the annular plate is slidably connected with the connecting pipe, a sealing gasket is fixedly connected to the left side of the annular plate, and the sealing gasket is in contact with the high-pressure condensate water device. By rotating the screw rod and the connecting sleeve, the screw rod rotates to drive the annular plate and other components to move, the annular plate moves to drive the sealing gasket to move, the sealing gasket moves to contact the connecting part of the high-pressure condensate water device and the connecting pipe, so that the connecting part of the high-pressure condensate water device and the connecting pipe is sealed, and leakage of the connecting part of the high-pressure condensate water device and the connecting pipe on the device is prevented.

[0009] Further, the right end of the screw rod is fixedly connected with a handle, the handle is made of iron material, and the handle is more durable by designing the handle to be made of iron material.

[0010] Further, a second annular groove is formed in the annular sleeve, and a bolt is slidably connected in the second annular groove, and the second bolt can slide in the second annular groove by designing the second bolt.

[0011] Further, the screw rod has two, and the two screw rods are symmetrically distributed in the connecting block, and the connecting block and the annular sleeve can be connected by designing the bolt.

[0012] Further, a guide rod is slidably connected in the connecting sleeve, and the guide rod is fixedly connected with the annular plate, and the annular plate can be guided by designing the guide rod.

[0013] Further, the sealing gasket is in contact with the connecting sleeve and the connecting pipe, and the connecting part of the high-pressure condensate water device and the connecting pipe can be sealed by designing the sealing gasket. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the embodiment of the utility model;

[0015] Figure 2 It is the high-pressure condensate water device of the embodiment of the utility model; Figure 1 It is the high-pressure condensate water device of the embodiment of the utility model;

[0016] Figure 3 It is the connecting sleeve of the embodiment of the utility model; Figure 2 It is the connecting sleeve of the embodiment of the utility model;

[0017] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings of the instruction manual include: 1. Main body of the first-stage flash evaporator; 2. Connecting pipe; 3. High-pressure condenser; 4. Sealing mechanism; 41. Connecting sleeve; 42. Screw; 43. Handle; 44. Rotating plate; 45. Connecting block; 46. First annular groove; 47. Annular sleeve; 48. Second annular groove; 49. Bolt; 410. Annular plate; 411. Guide rod; 412. Sealing gasket; 5. First-stage steam-water separator; 6. First steam superheater; 7. Second steam superheater; 8. Main body of the second-stage flash evaporator; 9. Low-pressure superheated steam generator; 10. Deaerator. Detailed Implementation

[0020] The basic implementation examples are as follows: Figure 1 — Figure 4 As shown, this embodiment provides a high-pressure condensate flash evaporator, including a primary flash evaporator body 1. The primary flash evaporator body 1 is connected to a connecting pipe 2 via a pipeline. A high-pressure condenser 3 is installed on the outside of the connecting pipe 2. A sealing mechanism 4 is installed on the outside of the high-pressure condenser 3. The primary flash evaporator body 1 is connected to a primary steam-water separator 5 via a pipeline. The primary steam-water separator 5 is connected to a first steam superheater 6 via a pipeline. The first steam superheater 6 is connected to a second steam superheater 7 via a pipeline. The primary steam-water separator 5 is connected to the second steam superheater 7 via a pipeline. The primary steam-water separator 5 is connected to a secondary flash evaporator body 8 via a pipeline. The secondary flash evaporator body 8 is connected to the primary flash evaporator body 1 via a pipeline. The primary steam-water separator 5 is connected to a low-pressure superheated steam generator 9 via a pipeline. The primary flash evaporator body 1 is connected to a deaerator 10 via a pipeline.

[0021] The basic implementation examples are as follows: Figure 2 , Figure 3 , Figure 4As shown, the sealing mechanism 4 includes a connecting sleeve 41, the upper fixed connection of the high-pressure condensate water device 3 has the connecting sleeve 41, the connecting sleeve 41 is in contact with the connecting pipe 2, the inside of the connecting sleeve 41 is threadedly connected with a screw rod 42, the right end of the screw rod 42 is fixedly connected with a handle 43, the handle 43 is made of iron material, the handle 43 is more durable by designing the handle 43 to be made of iron material, the left end of the screw rod 42 is fixedly connected with a rotating plate 44, the left side of the rotating plate 44 is in contact with a connecting block 45, the inside of the connecting block 45 is provided with a first annular groove 46, the inside of the first annular groove 46 is rotatably connected with an annular sleeve 47, the annular sleeve 47 is fixedly connected with the rotating plate 44, the inside of the annular sleeve 47 is provided with a second annular groove 48, the inside of the second annular groove 48 is slidably connected with a bolt 49, the second bolt 49 can slide in the second annular groove 48 by designing the second bolt 49, the inside of the connecting block 45 is threadedly connected with the bolt 49, the bolt 49 has two, the two bolts 49 are symmetrically distributed in the inside of the connecting block 45, the connecting block 45 and the annular sleeve 47 can be connected by designing the bolt 49.

[0022] The embodiments are substantially as described in the Figure 2 、 Figure 3 、 Figure 4 As shown, the inside of the connecting sleeve 41 is slidably connected with an annular plate 410, the annular plate 410 is fixedly connected with the connecting block 45, the inside of the connecting sleeve 41 is slidably connected with a guide rod 411, the guide rod 411 is fixedly connected with the annular plate 410, the annular plate 410 can be guided by designing the guide rod 411, the annular plate 410 is slidably connected with the connecting pipe 2, the left side of the annular plate 410 is fixedly connected with a sealing gasket 412, the sealing gasket 412 is in contact with the connecting sleeve 41, the sealing gasket 412 is in contact with the connecting pipe 2, the connecting part of the high-pressure condensate water device 3 and the connecting pipe 2 can be sealed by designing the sealing gasket 412, the sealing gasket 412 is fixedly connected with the high-pressure condensate water device 3, the sealing gasket 412 is in contact with the connecting pipe 2 by threadedly moving the screw rod 42 and the connecting sleeve 41, the screw rod 42 drives the annular plate 410 and other components to move, the annular plate 410 drives the sealing gasket 412 to move, the sealing gasket 412 moves to contact the connecting part of the high-pressure condensate water device 3 and the connecting pipe 2, thereby sealing the connecting part of the high-pressure condensate water device 3 and the connecting pipe 2, preventing the connecting part of the high-pressure condensate water device 3 and the connecting pipe 2 on the device from leaking.

[0023] The utility model discloses a specific implementation process as follows: when the connecting place of high pressure condensate water device 3 and connecting pipe 2 on the device needs to be sealed, rotate handle 43, handle 43 rotation drives screw rod 42 to rotate, and screw rod 42 rotation and connecting sleeve 41 carry out screw thread movement, and further make screw rod 42 produce relative displacement, and screw rod 42 rotation drives rotating plate 44, annular cover 47 and connecting block 45 etc. component movement, and connecting block 45 movement drives annular plate 410 movement, and annular plate 410 movement drives guide rod 411 and sealing washer 412 movement, and sealing washer 412 movement contacts the connecting place of high pressure condensate water device 3 and connecting pipe 2, and further make the connecting place of high pressure condensate water device 3 and connecting pipe 2 get sealed, prevent the connecting place of high pressure condensate water device 3 and connecting pipe 2 on the device from leaking;

[0024] When the device is used, the overpressure condensate water enters the first-stage flash evaporation device main body 1 through the regulating valve, flash evaporation generates 4.0MPa.a, 250 DEG C saturated steam, and after the steam is separated from water and depressurized, 1.2MPa steam is generated; the condensate water enters the first steam superheater 6 as a heat source for heating the saturated steam in the first steam superheater 6, in order to guarantee the stability of the device, the first steam superheater 6 and the second steam superheater 7 are arranged in the scheme, so that when the first steam superheater 6 fails, the second steam superheater 7 operates, guaranteeing the stability of the system, after heat exchange through the first steam superheater 6, the condensate water enters the second-stage flash evaporation device main body 8 through the regulating valve, flash evaporation generates 1.2MPa.a, 188 DEG C saturated steam, which is mixed with the first-stage flash evaporation steam to enter the first steam superheater 6, and after being heated to 1.2MPa.a, 230 DEG C, enters the heat supply pipe network to supply heat outside; the unflash-evaporated condensate water enters the oxygen removal device 10 through the lifting pump to serve as high-temperature makeup water of the oxygen removal device 10, and the makeup water temperature of the oxygen removal device 10 is raised, the high-pressure condensate water flash evaporation process, through two-stage flash evaporation, the first-stage flash-evaporated condensate water is heated in the second-stage and first-stage flash-evaporated mixed saturated steam, the steam is heated from saturation to superheat, and the thermal energy is stepped down, which can reduce the operation risk of the pressurized condensate water heating equipment under high pressure, and avoid energy loss caused by external heat source heating, and improve the operation economy.

[0025] The application solves the problem that flash evaporation cannot produce superheated steam by using multistage flash evaporation and superheating process, and guarantees the stability of steam supply, improves the economic efficiency and stability of plant operation, and prevents the connection between the high-pressure condensate vessel 3 and the connecting pipe 2 from leaking by designing the connecting sleeve 41, the screw rod 42, the handle 43, the rotating plate 44, the connecting block 45, the first annular groove 46 and other components.

[0026] The above is only an embodiment of the present application, and the well-known specific structures and properties in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and other records in the specification can be used to explain the content of the claims.

Claims

1. A high pressure condensate flash device comprising a primary flash device body, characterised in that: The primary flash device body is connected with a connecting pipe through a pipeline, the outer side of the connecting pipe is provided with a high-pressure condensate water device, the outer side of the high-pressure condensate water device is provided with a sealing mechanism, the primary flash device body is connected with a primary steam-water separator through a pipeline, the primary steam-water separator is connected with a first steam superheater through a pipeline, the first steam superheater is connected with a second steam superheater through a pipeline, the primary steam-water separator is connected with a second steam superheater through a pipeline, the primary steam-water separator is connected with a secondary flash device body through a pipeline, the secondary flash device body is connected with a primary flash device body through a pipeline, the primary steam-water separator is connected with a low-pressure superheated steam device through a pipeline, and the primary flash device body is connected with an oxygen removal device through a pipeline.

2. A high pressure condensate flash device according to claim 1, characterized in that: The sealing mechanism comprises a connecting sleeve, the high-pressure condensate water device is fixedly connected with the connecting sleeve, the connecting sleeve is in contact with the connecting pipe, a screw rod is threadedly connected in the connecting sleeve, a rotating plate is fixedly connected to the left end of the screw rod, a connecting block is in contact with the left side of the rotating plate, a first annular groove is formed in the connecting block, an annular sleeve is rotatably connected in the first annular groove, the annular sleeve is fixedly connected with the rotating plate, a bolt is threadedly connected in the connecting block, an annular plate is slidably connected in the connecting sleeve, the annular plate is fixedly connected with the connecting block, the annular plate is slidably connected with the connecting pipe, a sealing gasket is fixedly connected to the left side of the annular plate, and the sealing gasket is in contact with the high-pressure condensate water device.

3. A high pressure condensate flash device according to claim 2, wherein: The right end of the screw rod is fixedly connected with a handle, and the handle is made of iron material.

4. A high pressure condensate flash device according to claim 2, wherein: The annular sleeve is internally provided with a second annular groove, and the second annular groove is slidably connected with a bolt.

5. A high pressure condensate flash device according to claim 2, wherein: The bolt is provided with two, and the two bolts are symmetrically distributed in the connecting block.

6. A high pressure condensate flash device according to claim 2, wherein: The connecting sleeve is slidably connected with a guide rod, and the guide rod is fixedly connected with the annular plate.

7. A high pressure condensate flash device as claimed in claim 2, wherein: The sealing gasket is in contact with the connecting sleeve, and the sealing gasket is in contact with the connecting pipe.

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