CN215294879U

CN215294879U - Condensate water conveying device containing secondary flash evaporation gas

Info

Publication number: CN215294879U
Application number: CN202120573771.5U
Authority: CN
Inventors: 连峰; 刘栋; 张世丰; 常伟平; 石军福
Original assignee: Zhongfu Shenying Carbon Fiber Xining Co Ltd
Current assignee: Zhongfu Shenying Carbon Fiber Xining Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-24
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a condensate water conveying device containing secondary flash evaporation gas, which quickly pushes high-temperature condensate water to a collection point by using a pneumatic condensate water recovery device for condensate water containing secondary flash evaporation gas, and recovers the condensate water to a boiler room from an equipment room to the boiler room; the water inlet of the horizontal buffer tank is provided with a wafer butterfly valve, and the air inlet and exhaust pipe groups arranged on the horizontal buffer tank, the water collecting tank and the pneumatic mechanical pump are all arranged on the vertical pipe of the bracket. The device fundamentally avoids the problems of cavitation and mechanical sealing when the electric pump is used for conveying high-temperature fluid.

Description

Condensate water conveying device containing secondary flash evaporation gas

Technical Field

The utility model relates to a chemical fiber manufacturing steam energy-saving field specifically is a contain secondary flash distillation gas comdenstion water conveyor.

Background

In the chemical fiber preparation, the energy consumption of steam and condensate thereof accounts for a large proportion of the preparation cost, and how to comprehensively utilize the steam and the condensate thereof in the spinning line plays a key role in controlling the production cost. At present, each line is estimated to generate 6-10 t of condensed water every day, the drying equipment uses steam with higher pressure, and after the steam condensed water in each roller is output through a drain valve, the steam condensed water is mixed with the steam and has higher latent heat value, so that the continuous conveying of a steam condensed water conveying pump is greatly influenced, and the condensed water is discharged in large quantity, so that the serious waste of water resources and heat resources is caused. The occurrence of back pressure can result in a reduction in the operating differential pressure of the steam trap, which in turn affects the fluid capacity of the trap. Under extreme working conditions, the pressure at the inlet of the drain valve is lower than the back pressure, so that the drain valve generates stagnation and cannot work normally, and how to quickly and efficiently utilize the part of secondary steam condensate containing flash evaporation is a better measure for reducing resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a contain secondary flash distillation gas comdenstion water conveyor.

Realize the technical scheme of the utility model as follows:

a condensate water conveying device containing secondary flash evaporation gas is applied to carbon fiber wet spinning or dry jet wet spinning raw silk yarns and acrylic wet spinning yarns and comprises a horizontal buffer tank, two water collecting tanks, a support vertical pipe, a wafer butterfly valve, a flange plate, a pneumatic mechanical pump and assembly, a power air inlet valve, a power filter, an air inlet pipe group, an air exhaust pipe group and an equipment chassis; the horizontal buffer tank and the two water collecting tanks are provided with a pneumatic mechanical pump and a component, and the pneumatic mechanical pump is connected with a power air inlet valve and a power filter; the water inlet of the horizontal buffer tank is provided with a wafer butterfly valve, and the horizontal buffer tank, the water collecting tank and the air inlet and exhaust pipe groups arranged on the pneumatic mechanical pump are all arranged on the vertical pipe of the bracket; when the pump body of the pneumatic mechanical pump is in an initial state: the air inlet valve is set to be in a closed state, and the exhaust valve is set to be in an open state, so that the pump body is ensured to be in a normal pressure state; when the pump body of the pneumatic mechanical pump is in a working process, an inlet check valve of the pump body is used for enabling condensed water under pressure to enter the pump body, a floating ball in the pump body is used for slowly floating under the action of buoyancy, a turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body gradually rises to a set liquid level, an exhaust valve of the pump body is used for automatically closing, an intake valve is used for synchronously opening, and an air source is set to provide pressure for rapidly pushing the condensed water to a boiler room; after the pneumatic mechanical pump body is conveyed, the turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body drops to a set liquid level, and an exhaust valve of the pump body is automatically opened and an intake valve is synchronously closed so as to rapidly drop the pressure in the pump to a normal pressure state.

Furthermore, the metal shell of the components in the conveying device is made of 304 stainless steel.

Furthermore, the horizontal buffer box has the transverse length of 1200mm and the diameter of 480 mm.

Further, the height of the water collecting tank is 500mm, and the diameter of the water collecting tank is 300 mm.

Furthermore, the air source can be compressed air or steam, the working pressure of the air source is 0.6-1.3MPa, the conveying back pressure of the condensed water is 0.1-0.3 MPa, and the pressure difference is 0.5-1.0 MPa.

Furthermore, two catchment jars are equipped with the overflow pipe.

Furthermore, the treatment capacity of the steam condensate water of the conveying device is 8-10 t/h.

Furthermore, the flange plate is used as a connecting device of each valve.

The working mode of the device is intermittent (water feeding of the device is continuous), when the water level in the pneumatic pump reaches a set water level, the exhaust valve is automatically closed, the air inlet valve is synchronously opened, and the condensed water is conveyed to the boiler under the pressure action of the power source. The emptying port is reserved at the top of the tank body, the pressure in the tank can be discharged in time, the drainage backpressure minimization of a pipeline is ensured, and when the pipeline drain valve leaks, leaked steam can be effectively released through the exhaust port, so that potential safety hazards are avoided.

The utility model is suitable for a production line such as carbon fiber wet spinning or dry jet wet spinning raw silk thread, acrylic fibres wet spinning line.

Compared with the prior art, the utility model it does to have apparent advantage:

1. the device provided by the utility model is purely mechanically designed, does not need electric power, fundamentally avoids the problems of cavitation and mechanical sealing when the electric pump is used for conveying high-temperature fluid, and only depends on the linked control of the liquid level meter and the pneumatic valve;

2. the utility model discloses can furthest reduce the backpressure that causes for the trap, guarantee to use the heat exchange efficiency of thermal equipment. The device is full-automatic, free of maintenance operation and free of manual intervention, an overflow pipe is arranged in a water collecting tank at the top of the condensate recoverer, when the recoverer is in an abnormal condition, condensate water can be discharged through an overflow port, and drainage of the front-end heat-using device cannot be influenced under any condition.

Drawings

The invention is further described below with reference to the accompanying drawings:

fig. 1 is a schematic view of a conventional steam condensate recovering apparatus.

Fig. 2 is a schematic diagram of the condensed water conveying device containing secondary flash evaporation gas of the present invention.

In fig. 2, 1, a horizontal buffer tank; 2. a water collection tank; 3. a pneumatic mechanical pump; 4. a water inlet of the horizontal cache tank; 5. an exhaust port of the horizontal cache box; 6. an overflow port of the horizontal cache tank; 7. a water outlet of the horizontal cache box; 8. a wafer butterfly valve.

Detailed Description

The present invention will be further explained with reference to the drawings

The utility model provides a condensate water conveying device containing secondary flash evaporation gas, which is applied to carbon fiber wet spinning or dry jet wet spinning raw silk yarns and acrylic wet spinning threads and comprises a horizontal buffer tank 1, two water collecting tanks 2, a support vertical pipe, a wafer butterfly valve, a flange plate, a pneumatic mechanical pump 3 and components, a power air inlet valve, a power filter, an air inlet and exhaust pipe group and an equipment chassis; the horizontal buffer tank 1 and the two water collecting tanks 2 are provided with a pneumatic mechanical pump 3 and components, and the pneumatic mechanical pump 3 is connected with a power air inlet valve and a power filter; a wafer butterfly valve 8 is arranged at a water inlet 4 of the horizontal buffer tank 1, and air inlet and exhaust pipe groups arranged on the horizontal buffer tank 1, the water collecting tank 2 and the pneumatic mechanical pump 3 are all arranged on a vertical pipe of the support; when the pump body of the pneumatic mechanical pump 3 is in an initial state: the air inlet valve is set to be in a closed state, and the exhaust valve is set to be in an open state, so that the pump body is ensured to be in a normal pressure state; when the pump body of the pneumatic mechanical pump 3 is in a working process, an inlet check valve of the pump body is used for enabling condensed water under pressure to enter the pump body, a floating ball in the pump body is used for slowly floating under the action of buoyancy, a turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body gradually rises to a set liquid level, an exhaust valve of the pump body is used for automatically closing, an intake valve is used for synchronously opening, and an air source is set to provide pressure for rapidly pushing the condensed water to a boiler room; after the pneumatic mechanical pump body is conveyed, the turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body drops to a set liquid level, and an exhaust valve of the pump body is automatically opened and an intake valve is synchronously closed so as to rapidly drop the pressure in the pump to a normal pressure state.

Examples

As shown in figure 2, the device comprises a horizontal buffer tank, two water collecting tanks, a support vertical pipe, a wafer butterfly valve, a flange plate, a pneumatic mechanical pump and assembly, an air inlet pipe, an air exhaust pipe group, an equipment chassis and the like. At the beginning of the production process, a large amount of condensed water containing secondary flash steam generated in the drying working section enters a cache tank and then enters a water collecting tank, a pneumatic mechanical pump is arranged between the cache tank and the water collecting tank, the condensed water under pressure pushes an inlet check valve of a pump body away to enter the pump body due to the normal pressure state in the pump body, a floating ball in the pump body slowly floats upwards under the action of buoyancy, a turnover mechanism in the pump can rapidly turn over when the liquid level in the pump body gradually rises to a set liquid level, an exhaust valve of the pump body can be automatically closed, an air inlet valve can be synchronously opened, the condensed water can be rapidly pushed to a boiler under the action of 0.6MPa public engineering compressed air pressure, the turnover mechanism in the pump can rapidly turn over when the liquid level in the pump body falls to the set exhaust valve liquid level, the pump body can be automatically opened, the air inlet valve is synchronously closed, the pressure in the pump rapidly falls to the normal pressure state, and the condensed water pushes the inlet check valve back to flow into the pump body, and opening a new round of reciprocating circulation. The whole process is full-automatic and maintenance-free, and manual intervention is not needed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as within the protection scope of the present invention.

Claims

1. The utility model provides a contain secondary flash distillation gas comdenstion water conveyor which characterized in that: the device is applied to carbon fiber wet spinning or dry jet wet spinning raw silk yarns and acrylic wet spinning yarns and comprises a horizontal buffer tank, two water collecting tanks, a support vertical pipe, a wafer butterfly valve, a flange sheet, a pneumatic mechanical pump and assembly, a power air inlet valve, a power filter, an air inlet and exhaust pipe group and an equipment chassis; wherein, a pneumatic mechanical pump and a component are arranged between the horizontal buffer tank and the two water collecting tanks, and the pneumatic mechanical pump is connected with a power air inlet valve and a power filter; the water inlet of the horizontal buffer tank is provided with a wafer butterfly valve, and the horizontal buffer tank, the water collecting tank and the air inlet and exhaust pipe groups arranged on the pneumatic mechanical pump are all arranged on the vertical pipe of the bracket; when the pump body of the pneumatic mechanical pump is in an initial state: the air inlet valve is set to be in a closed state, and the exhaust valve is set to be in an open state, so that the pump body is ensured to be in a normal pressure state; when the pump body of the pneumatic mechanical pump is in a working process, an inlet check valve of the pump body is used for enabling condensed water under pressure to enter the pump body, a floating ball in the pump body is used for slowly floating under the action of buoyancy, a turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body gradually rises to a set liquid level, an exhaust valve of the pump body is used for automatically closing, an intake valve is used for synchronously opening, and an air source is set to provide pressure for rapidly pushing the condensed water to a boiler room; after the pneumatic mechanical pump body is conveyed, the turnover mechanism in the pump is used for rapidly turning over after the liquid level in the pump body drops to a set liquid level, and an exhaust valve of the pump body is automatically opened and an intake valve is synchronously closed so as to rapidly drop the pressure in the pump to a normal pressure state.

2. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the metal shell of the components of the conveying device is made of 304 stainless steel.

3. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the horizontal buffer tank is 1200mm in transverse length and 480mm in diameter.

4. The condensate conveying device containing secondary flash evaporation gas according to claim 1, wherein the height of the water collecting tank is 500mm, and the diameter of the water collecting tank is 300 mm.

5. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the air source can be compressed air or steam, the working pressure of the air source is 0.6-1.3MPa, the conveying back pressure of the condensed water is 0.1-0.3 MPa, and the pressure difference is 0.5-1.0 MPa.

6. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the two water collecting tanks are provided with overflow pipes.

7. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the processing capacity of the steam condensate water of the conveying device is 8-10 t/h.

8. The condensate conveying device containing secondary flash evaporation gas as claimed in claim 1, characterized in that: the flange plate is used as a connecting device of each valve.