CN213300797U

CN213300797U - Condensate water recycling system in drying system

Info

Publication number: CN213300797U
Application number: CN202022415775.9U
Authority: CN
Inventors: 孟永华
Original assignee: Jiangsu Kangning Chemical Co ltd
Current assignee: Jiangsu Kangning Chemical Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-05-28
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a comdenstion water recycle system among drying system, include: the drying system and the condensate water tank are provided with a liquid level sensor in the condensate water tank, a drying preheating heat exchanger is arranged on the drying system, a condensate water pump is arranged between the drying preheating heat exchanger and the condensate water tank, a first main pipe is arranged on the drying preheating heat exchanger, a return pipe and a second main pipe are respectively connected onto the first main pipe, the return pipe is connected with the condensate water tank, a first regulating valve and a second regulating valve are respectively arranged on the return pipe and the second main pipe, the second main pipe is respectively connected with a polymerization hot water tank, a drying room and an emulsifier heat preservation tank, the polymerization hot water tank, the drying room and the emulsifier heat preservation tank are also connected with a third main pipe, the third main pipe is respectively connected with an office heating system and a raw water tank, a temperature sensor is arranged on the third main pipe, and a third regulating valve and a fourth regulating valve are arranged. The utility model has the advantages that can make full use of the heat energy of comdenstion water.

Description

Condensate water recycling system in drying system

Technical Field

The utility model relates to a comdenstion water recycle system among drying system.

Background

After the polymerization of the PVC paste resin is completed, the moisture in the PVC paste resin needs to be removed by a drying system to form a powdery paste resin product. The water content of the PVC paste resin emulsion is large, the particle size of the paste resin is only about 1 mu m, the drying cannot be carried out by adopting a mode of saving steam relatively such as centrifugation and cyclone, the drying can be carried out only through atomization and spraying, when the drying is carried out by using steam, 2.5-3 tons of steam are consumed by 1 ton of PVC paste resin products, each ton of steam can generate a large amount of condensed water, and the condensed water can be discharged after entering a condensed water tank for cooling, so that the great resource waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure to can make full use of comdenstion water recycle system among the drying system of comdenstion water heat energy.

In order to achieve the above object, the utility model adopts the following technical scheme: condensate water recycling system in drying system includes: the drying system and a condensate tank connected with the drying system, wherein a liquid level sensor is arranged in the condensate tank, a drying preheating heat exchanger is arranged on the drying system, a first pipeline is connected between a water inlet of the drying preheating heat exchanger and a water outlet of the condensate tank, a condensate pump is arranged on the first pipeline, the liquid level sensor is electrically connected with the condensate pump through a central control device, a first main pipe is arranged on the water outlet of the drying preheating heat exchanger, a return pipe and a second main pipe are respectively connected on the first main pipe, the return pipe is connected with the condensate tank, a first regulating valve is arranged on the return pipe, a second regulating valve is arranged on the second main pipe, the first regulating valve and the second regulating valve are both electrically connected with the liquid level sensor through the central control device, a second pipeline, a third pipeline and a fourth pipeline are respectively connected on the second main pipe, and the second pipeline is connected with a water inlet of a polymerization hot, the third pipeline links to each other with the water inlet of baking house, the fourth pipeline links to each other with the water inlet of emulsifier heat preservation groove, the polymerization hot-water tank, the baking house, the delivery port of emulsifier heat preservation groove all links to each other with the third house steward, the third house steward links to each other with office heating system and former pond respectively, be provided with temperature sensor on the third house steward, be provided with the third governing valve between third house steward and office heating system, be provided with the fourth governing valve between third house steward and former pond, third governing valve and fourth governing valve all are connected with temperature sensor electricity through well accuse device.

Further, in the condensate water recycling system in the drying system, a fifth adjusting valve is arranged on the second pipeline at the water inlet of the polymerization hot water tank, a sixth adjusting valve is arranged on the third pipeline at the water inlet of the drying room, and a seventh adjusting valve is arranged on the fourth pipeline at the water inlet of the emulsifier insulation tank.

Further, in the condensate water recycling system in the drying system, a fifth pipeline is disposed between the office heating system and the raw water tank.

Further, in the condensate water recycling system in the drying system, a cover plate is disposed on the condensate water tank.

Furthermore, in the condensate water recycling system in the drying system, two liquid level sensors located at the same horizontal position are respectively arranged in the condensate water tank, the two liquid level sensors are respectively electrically connected with the first regulating valve and the second regulating valve through a central control device, and the two liquid level sensors are further electrically connected with the condensate water pump through the central control device.

The utility model has the advantages that: the drying system can be insulated by utilizing the heat energy of the condensed water by adding the drying preheating heat exchanger in the drying system, so that the energy consumption of the drying system is reduced; the heat energy of the condensed water can be further utilized by subsequently adding a polymerization hot water tank, a drying room, an emulsifier insulation tank and an office heating system, thereby reducing the steam usage amount of the equipment, greatly reducing the energy loss and lowering the production cost.

Drawings

Fig. 1 is a schematic structural diagram of a condensate water recycling system in a drying system according to the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, the condensate water recycling system in the drying system of the present invention includes: drying system 1 reaches condensate water tank 2 that links to each other with drying system 1, is provided with apron 21 on condensate water tank 2, just so can prevent that the dust in the air from dropping to the condensate water tank 2 in and polluting the comdenstion water to can also prevent that the comdenstion water heat dissipation is too fast. Two liquid level sensors 22 at the same horizontal position are respectively arranged in the condensate water tank 2, and the two liquid level sensors 22 at the same horizontal position can more accurately monitor the water level in the condensate water tank 2. A drying preheating heat exchanger 3 is arranged on a drying system 1, a first pipeline 31 is connected between a water inlet of the drying preheating heat exchanger 3 and a water outlet of a condensate water tank 2, a condensate water pump 32 is arranged on the first pipeline 31, a first header pipe 33 is arranged on the water outlet of the drying preheating heat exchanger 3, a return pipe 4 and a second header pipe 5 are respectively connected on the first header pipe 33, the return pipe 4 is connected with the condensate water tank 2, a first regulating valve 41 is arranged on the return pipe 4, a second regulating valve 51 is arranged on the second header pipe 5, the first regulating valve 41 and the second regulating valve 51 are both electrically connected with two liquid level sensors 22 through a central control device, the two liquid level sensors 22 are electrically connected with the condensate water pump 32 through the central control device, a second pipeline 6, a third pipeline 7 and a fourth pipeline 8 are respectively connected on the second header pipe 5, the second pipeline 6 is connected with a water inlet of a polymerization hot water tank 61, the fifth adjusting valve 62 is arranged on the second pipeline 6 positioned at the water inlet of the polymerization hot water tank 61, the third pipeline 7 is connected with the water inlet of the drying room 71, the sixth adjusting valve 72 is arranged on the third pipeline 7 positioned at the water inlet of the drying room 71, the fourth pipeline 8 is connected with the water inlet of the emulsifier heat preservation groove 81, and the seventh adjusting valve 82 is arranged on the fourth pipeline 8 positioned at the water inlet of the emulsifier heat preservation groove 81. The polymerization hot water tank 61, the drying room 71 and the water outlet of the emulsifier insulation tank 81 are all connected with a third main pipe 9, the third main pipe 9 is respectively connected with an office heating system 91 and a raw water tank 92, a fifth pipeline 10 is arranged between the office heating system 91 and the raw water tank 92, a temperature sensor 93 is arranged on the third main pipe 9, a third regulating valve 94 is arranged between the third main pipe 9 and the office heating system 91, a fourth regulating valve 95 is arranged between the third main pipe 9 and the raw water tank 92, and the third regulating valve 94 and the fourth regulating valve 95 are electrically connected with the temperature sensor 93 through a central control device.

The working principle of the utility model is as follows: high-temperature condensed water generated in the drying system 1 enters the condensed water tank 2, when the condensed water in the condensed water tank 2 reaches the sensing positions of the two liquid level sensors 22, the two liquid level sensors 22 send first signals to the central control device, the central control device controls the operation of the condensed water pump 32 according to the first signals, the condensed water pump 32 pumps the high-temperature condensed water into the first pipeline 31 from the condensed water tank 2, the condensed water firstly enters the preheating heat exchanger 3 to preserve heat of the drying system 1, after the heat preservation is finished, the condensed water flows out of the preheating heat exchanger 3 and enters the first main pipeline 33, if the water levels in the condensed water tank 2 monitored by the two liquid level sensors 22 are insufficient, the two liquid level sensors 22 send second signals to the central control device, the central control device controls the first regulating valve 41 to be opened according to the second signals and controls the second regulating valve 51 to be closed, the condensed water flows back to the condensed water tank 2 from the, if the water levels in the condensed water tanks 2 monitored by the two liquid level sensors 22 are enough, the two liquid level sensors 22 send a third signal to the central control device, the central control device controls the first regulating valve 41 to be closed and controls the second regulating valve to be opened according to the third signal, condensed water flows into the second main pipe 5, then the fifth regulating valve 62, the sixth regulating valve 72 or the seventh regulating valve 82 are respectively opened or the fifth regulating valve 62, the sixth regulating valve 72 and the seventh regulating valve 82 are all opened according to specific requirements, so that the condensed water in the second main pipe 5 is introduced into the polymerization hot water tank 61, the drying room 71 or the emulsifier insulation tank 81, when the condensed water comes out of the polymerization hot water tank 61, the drying room 71 or the emulsifier insulation tank 81 and enters into the third main pipe 9, the temperature sensor 93 on the third main pipe 9 monitors the temperature of the condensed water in the third main pipe 9, if the temperature is not lower than 40 ℃, the temperature sensor 93 sends a fourth signal to the central control device, the central control device controls the third regulating valve 94 to be opened and controls the fourth regulating valve 95 to be closed according to the fourth signal, the condensed water enters the office heating system 91, and after heating is finished, the condensed water enters the raw water tank through the fifth pipeline 10. If the temperature is lower than 40 ℃, the temperature sensor 93 sends a fifth signal to the central control device, the central control device controls the third regulating valve 94 to be closed and controls the fourth regulating valve 95 to be opened according to the fifth signal, and the condensed water is directly discharged into the raw water pool.

Claims

1. Condensate water recycling system in drying system includes: drying system and the condensate tank who links to each other with drying system, its characterized in that: a liquid level sensor is arranged in the condensate water tank, a drying preheating heat exchanger is arranged on the drying system, a first pipeline is connected between a water inlet of the drying preheating heat exchanger and a water outlet of the condensate water tank, a condensate water pump is arranged on the first pipeline, the liquid level sensor is electrically connected with the condensate water pump through a central control device, a first main pipe is arranged on the water outlet of the drying preheating heat exchanger, a return pipe and a second main pipe are respectively connected on the first main pipe, the return pipe is connected with the condensate water tank, a first regulating valve is arranged on the return pipe, a second regulating valve is arranged on the second main pipe, the first regulating valve and the second regulating valve are both electrically connected with the liquid level sensor through the central control device, a second pipeline, a third pipeline and a fourth pipeline are respectively connected on the second main pipe, the second pipeline is connected with a water inlet of a polymerization hot water tank, the third pipeline is connected, the fourth pipeline links to each other with the water inlet of emulsifier heat preservation groove, the polymerization hot-water tank, the baking house, the delivery port of emulsifier heat preservation groove all links to each other with the third house steward, the third house steward links to each other with office heating system and former pond respectively, be provided with temperature sensor on the third house steward, be provided with the third governing valve between third house steward and office heating system, be provided with the fourth governing valve between third house steward and former pond, third governing valve and fourth governing valve all are connected with temperature sensor electricity through well accuse device.

2. The condensate water recycling system in a drying system according to claim 1, wherein: a fifth regulating valve is arranged on the second pipeline positioned at the water inlet of the polymerization hot water tank, a sixth regulating valve is arranged on the third pipeline positioned at the water inlet of the drying room, and a seventh regulating valve is arranged on the fourth pipeline positioned at the water inlet of the emulsifier insulation groove.

3. The condensate water recycling system in a drying system according to claim 1, wherein: and a fifth pipeline is arranged between the office heating system and the raw water tank.

4. The condensate water recycling system in a drying system according to claim 1, wherein: a cover plate is arranged on the condensate water tank.

5. The condensate water recycling system in a drying system according to claim 1, wherein: two liquid level sensors which are positioned at the same horizontal position are respectively arranged in the condensate water tank, the two liquid level sensors are respectively and electrically connected with the first regulating valve and the second regulating valve through a central control device, and the two liquid level sensors are also electrically connected with the condensate water pump through the central control device.