Steam condensate water recycling device

Abstract

The utility model relates to a steam condensate water recycling device, which belongs to the technical field of steam condensate water recycling equipment and comprises a medium-pressure steam flash tank, a steam discharge pipe is arranged on the upper portion of the medium-pressure steam flash tank, and low-pressure steam is arranged in the steam discharge pipe. A steam discharge pipe is arranged at the upper end of the medium-pressure steam flash tank, a steam conveying pipe communicated with the medium-pressure steam flash tank is arranged below the steam discharge pipe, medium-pressure steam condensate water is arranged in the steam conveying pipe, a condensate water collecting tank is arranged on the outer side edge of the medium-pressure steam flash tank, and a water collecting pipe is arranged between the lower end of the medium-pressure steam flash tank and the upper end of the condensate water collecting tank. The device has the characteristics of compact structure, good operation stability, energy conservation and emission reduction. The problems that in the chemical production process, steam condensation water resources are wasted, and the recycling efficiency is low are solved. And through an efficient recycling mechanism, the energy consumption cost in the production process is remarkably reduced, and sustainable utilization of energy and maximum improvement of production benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of steam condensate recycling equipment, specifically to a steam condensate recycling device. Background Technology

[0002] In the production process of the chemical industry, steam is widely used as an important heat carrier, and the superheated steam condensate produced during its use contains extremely high enthalpy. Directly discharging this condensate would result in a large amount of heat energy being wasted, seriously violating the principle of energy efficiency.

[0003] When steam condensate under high temperature and pressure encounters a sudden pressure drop, it triggers a flash evaporation phenomenon, generating a certain amount of low-pressure steam. The heat carried by this low-pressure steam has significant utilization value in chemical production. It can be applied to processes with relatively low steam pressure requirements, or used as a preheating heat source in other production processes, effectively improving overall energy utilization efficiency. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a steam condensate recycling device, characterized by its compact structure, high operational stability, and energy-saving and emission-reduction features. It solves the problems of wasted steam condensate resources and low recycling efficiency in chemical production processes. Through an efficient recycling mechanism, it significantly reduces energy costs in the production process, achieving sustainable energy utilization and maximizing production efficiency.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A steam condensate recycling device includes a medium-pressure steam flash tank. The upper part of the medium-pressure steam flash tank is provided with a steam discharge pipe, and low-pressure steam is provided in the steam discharge pipe. Below the steam discharge pipe is a steam delivery pipe connected to the medium-pressure steam flash tank, and medium-pressure steam condensate is provided in the steam delivery pipe. A condensate collection tank is provided on the outer side of the medium-pressure steam flash tank, and a water collection pipe is provided between the lower end of the medium-pressure steam flash tank and the upper end of the condensate collection tank.

[0007] Preferably, the medium-pressure steam flash tank is equipped with a level gauge I on its side, the water collection pipe is equipped with a condensate level regulating valve group, and a signal transmission cable is provided between the level gauge I and the condensate level regulating valve group.

[0008] The condensate level regulating valve group closely integrates with the real-time level information fed back by level gauge I. Through advanced control algorithms and high-precision actuators, it accurately controls the liquid level height of the medium-pressure steam flash tank, thereby optimizing and stabilizing the flash evaporation efficiency, ensuring that the unit is always in a high-efficiency operating state, and effectively improving the recovery and utilization efficiency of steam condensate and the energy conversion benefits.

[0009] Preferably, the medium-pressure steam flash tank is equipped with a safety valve at its upper end, and a pressure gauge is provided between the safety valve and the level gauge I.

[0010] Preferably, a condensate collection tank connected to the water collection pipe is provided between the medium-pressure steam flash tank and the condensate collection tank, and a drain valve is provided between the condensate collection tank and the water collection pipe.

[0011] Preferably, the steam discharge pipe is equipped with a steam pressure reducing valve assembly. The steam pressure reducing valve assembly plays a crucial pressure regulation role throughout the operation of the entire device, accurately controlling the pressure of the discharged low-pressure steam according to the production process requirements, ensuring a stable supply to each steam-consuming stage.

[0012] Preferably, a medium-pressure steam condensate inlet valve is provided between the steam delivery pipe and the medium-pressure steam flash tank.

[0013] Preferably, a condensate outlet valve is provided between the water collection pipe and the medium-pressure steam flash tank.

[0014] Preferably, the condensate collection tank is equipped with a level gauge II on its side.

[0015] Preferably, thermometers are provided on the lower side of the medium-pressure steam flash tank and the lower side of the condensate collection tank.

[0016] This invention can achieve the following effects:

[0017] This invention provides a steam condensate recycling device, which, compared with existing technologies, features a compact structure, good operational stability, and energy saving and emission reduction. It solves the problems of wasted steam condensate resources and low recycling efficiency in chemical production processes. Through an efficient recycling mechanism, it significantly reduces energy costs in the production process, achieving sustainable energy utilization and maximizing production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1. Low-pressure steam; 2. Medium-pressure steam condensate; 3. Steam pressure reducing valve assembly; 4. Steam delivery pipe; 5. Steam discharge pipe; 6. Safety valve; 7. Pressure gauge; 8. Medium-pressure steam flash tank; 9. Level gauge I; 10. Signal transmission cable; 11. Condensate level regulating valve assembly; 12. Condensate collection tank; 13. Level gauge II; 14. Thermometer; 15. Condensate sludge collection tank; 16. Water collection pipe; 17. Condensate outlet valve; 18. Medium-pressure steam condensate inlet valve; 19. Drain valve. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0021] Example: Figure 1 As shown, a steam condensate recycling device includes a medium-pressure steam flash tank 8. A steam discharge pipe 5 is located at the top of the medium-pressure steam flash tank 8, and a steam pressure reducing valve assembly 3 is installed on the steam discharge pipe 5. Low-pressure steam 1 is contained within the steam discharge pipe 5. A steam delivery pipe 4, connected to the medium-pressure steam flash tank 8, is located below the steam discharge pipe 5. A medium-pressure steam condensate inlet valve 18 is installed between the steam delivery pipe 4 and the medium-pressure steam flash tank 8. Medium-pressure steam condensate 2 is contained within the steam delivery pipe 4. A condensate collection tank 12 is located on the outer side of the medium-pressure steam flash tank 8. Thermometers 14 are installed on the lower side of both the medium-pressure steam flash tank 8 and the lower side of the condensate collection tank 12. A level gauge II 13 is installed on the side of the condensate collection tank 12. A water collection pipe 16 is located between the lower end of the medium-pressure steam flash tank 8 and the upper end of the condensate collection tank 12. A condensate outlet valve 17 is installed between the water collection pipe 16 and the medium-pressure steam flash tank 8. A condensate collection tank 15, connected to a water collection pipe 16, is provided between the medium-pressure steam flash tank 8 and the condensate collection tank 12. A drain valve 19 is provided between the condensate collection tank 15 and the water collection pipe 16. A level gauge I 9 is provided on the side of the medium-pressure steam flash tank 8, and a condensate level regulating valve assembly 11 is provided on the water collection pipe 16. A signal transmission cable 10 is provided between the level gauge I 9 and the condensate level regulating valve assembly 11. A safety valve 6 is provided at the upper end of the medium-pressure steam flash tank 8, and a pressure gauge 7 is provided between the safety valve 6 and the level gauge I 9.

[0022] Pressure gauges 7 and thermometers 14 installed on the medium-pressure steam flash tank 8 enable real-time monitoring of the steam pressure and temperature parameters inside the tank, providing crucial data support for process control during production. Simultaneously, a level gauge I9 with remote transmission capability transmits the liquid level information within the medium-pressure steam flash tank 8 to the control system in a timely and accurate manner, achieving remote monitoring and intelligent management. A safety valve 6 is employed to rapidly activate in case of abnormal pressure increases within the tank, ensuring the safety and stability of the unit's operation.

[0023] In actual operation, the medium-pressure steam condensate 2 enters the medium-pressure steam flash tank 8 precisely and stably from the steam delivery pipe 4 through the medium-pressure steam condensate inlet valve 18 for flash conversion. The low-pressure steam 1 generated by flash conversion is discharged after pressure regulation by the steam pressure reducing valve group 3 on the steam discharge pipe 5, ensuring that its pressure meets the usage requirements of downstream processes. Excess condensate in the medium-pressure steam flash tank 8 is precisely controlled by the coordinated action of the condensate outlet valve 17 and the condensate level regulating valve group 11, allowing it to be discharged orderly into the condensate collection tank 15 for recycling and reuse.

[0024] When the condensate water quality does not meet the recycling standards, it can be directly discharged into the sludge collection tank 10 for centralized treatment to avoid adverse effects on subsequent production processes.

[0025] In summary, this steam condensate recycling device features a compact structure, good operational stability, and energy saving and emission reduction. It solves the problems of wasted steam condensate resources and low recycling efficiency in chemical production processes. Through an efficient recycling mechanism, it significantly reduces energy costs in the production process, achieving sustainable energy utilization and maximizing production efficiency.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A steam condensate water recycling apparatus, characterized by: Including the middle pressure steam flash tank (8), the upper part of the middle pressure steam flash tank (8) is equipped with steam exhaust pipe (5), the steam exhaust pipe (5) is equipped with low pressure steam (1) in, the steam exhaust pipe (5) is equipped with steam delivery pipe (4) with the intercommunication of middle pressure steam flash tank (8) below, the steam delivery pipe (4) is equipped with middle pressure steam condensate (2) in, the outer side of the middle pressure steam flash tank (8) is equipped with condensate collection tank (12), the lower end of the middle pressure steam flash tank (8) is equipped with water collecting pipe (16) with the upper end of condensate collection tank (12).

2. A steam condensate water recycling device according to claim 1, characterized in that: The side of the middle pressure steam flash tank (8) is equipped with liquid level gauge I (9), the water collecting pipe (16) is equipped with condensate liquid level regulating valve group (11) on, the liquid level gauge I (9) and condensate liquid level regulating valve group (11) are equipped with signal transmission cable (10) between.

3. A steam condensate water recycling device according to claim 2, wherein: The upper end of the middle pressure steam flash tank (8) is equipped with safety valve (6), the safety valve (6) and liquid level gauge I (9) are equipped with pressure gauge (7) between.

4. The steam condensate water recycling device of claim 1, wherein: The middle pressure steam flash tank (8) and condensate collection tank (12) are equipped with condensate collection tank (15) with the pipeline intercommunication of water collecting pipe (16) between, the condensate collection tank (15) and water collecting pipe (16) are equipped with blowdown valve (19) between.

5. The steam condensate water recycling device of claim 1, wherein: The steam exhaust pipe (5) is equipped with steam pressure reducing valve group (3) on.

6. The steam condensate water recycling device of claim 1, wherein: The steam delivery pipe (4) and middle pressure steam flash tank (8) are equipped with middle pressure steam condensate inlet valve (18) between.

7. The steam condensate water recycling device of claim 1, wherein: The water collecting pipe (16) and middle pressure steam flash tank (8) are equipped with condensate outlet valve (17) between.

8. The steam condensate water recycling device of claim 1, wherein: The side of the condensate collection tank (12) is equipped with liquid level gauge II (13).

9. The steam condensate water recycling device of claim 1, wherein: The lower part side of the middle pressure steam flash tank (8) and the lower part side of condensate collection tank (12) are equipped with thermometer (14).

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