CN212458016U

CN212458016U - Waste heat recovery system

Info

Publication number: CN212458016U
Application number: CN202020681645.7U
Authority: CN
Inventors: 宋成雨
Original assignee: Guang'an Bnbm Co ltd
Current assignee: Guang'an Bnbm Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-02-02
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a waste heat recovery system, which comprises an absorption tower, a storage water tank and a clean water tank which are communicated in sequence; a first water drainage pipe and a second water drainage pipe are transversely arranged in the absorption tower, and a plurality of nozzles are arranged on the first water drainage pipe and the second water drainage pipe; the first drainage pipe is communicated with municipal tap water through a first water inlet pipe; the second water discharge pipe is communicated with the water outlet end at the bottom of the water storage tank through a second water inlet pipe; the bottom of the absorption tower is communicated with the top of the water storage tank through a first water outlet pipe, and the absorption tower is communicated with an air outlet pipe of the hot air dryer through an air inlet pipe; the first liquid level meter, the second liquid level meter and the first temperature sensor are sequentially turned in the water storage tank from high to low; the storage water tank is communicated with the clean water tank through a second water pump and a gate valve; and a third liquid level meter and a fourth liquid level meter are sequentially arranged on the clean water tank.

Description

Waste heat recovery system

Technical Field

The utility model belongs to the technical field of waste heat system, concretely relates to waste heat recovery system.

Background

The hot air dryer is a common drying device, and takes away moisture in a product to realize drying through the circulating flow of hot air, the moisture is evaporated to be changed into water vapor which flows together with the hot air, and after the water vapor reaches a certain concentration in the hot air, part of waste gas needs to be discharged and fresh air needs to be supplemented to adjust the content of the hot air water vapor so as to meet the process requirements of the dryer. The temperature of the waste gas reaches about 100 ℃, and a large amount of heat can be taken away by directly discharging the waste gas, so that the energy waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste heat recovery system to the above-mentioned among the prior art not enough to solve or improve the extravagant problem of the energy.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a waste heat recovery system comprises an absorption tower, a storage water tank and a clean water tank which are sequentially communicated; a first water drainage pipe and a second water drainage pipe are transversely arranged in the absorption tower, and a plurality of nozzles are arranged on the first water drainage pipe and the second water drainage pipe; the first drainage pipe is communicated with municipal tap water through a first water inlet pipe; the second water discharge pipe is communicated with the water outlet end at the bottom of the water storage tank through a second water inlet pipe; the bottom of the absorption tower is communicated with the top of the water storage tank through a first water outlet pipe, and the absorption tower is communicated with an air outlet pipe of the hot air dryer through an air inlet pipe;

the first liquid level meter, the second liquid level meter and the first temperature sensor are sequentially turned in the water storage tank from high to low; the storage water tank is communicated with the clean water tank through a second water pump and a gate valve; and a third liquid level meter and a fourth liquid level meter are sequentially arranged on the clean water tank.

Preferably, the first drain pipe is located above the second drain pipe.

Preferably, the first inlet pipe is provided with a first pneumatic valve.

Preferably, the second water inlet pipe is sequentially provided with a first water pump and a gate valve.

Preferably, a second pneumatic valve is mounted on the intake pipe.

Preferably, the bottom of the water storage tank is communicated with a second water outlet pipe, and a gate valve is installed on the second water outlet pipe.

Preferably, the first level gauge, the second level gauge, the third level gauge and the fourth level gauge are digital display static pressure level gauges ACD-201L.

Preferably, the gate valve is a DN80 gate valve.

The utility model provides a waste heat recovery system has following beneficial effect:

the utility model discloses directly arrange the absorption tower with desiccator waste gas, and pass through first inlet tube with the municipal water, get into the absorption tower by electromagnetic pneumatic valve control, absorption tower internally arranged has the nozzle, the municipal water is direct to spout into the absorption tower through the nozzle, nozzle spun water and desiccator exhaust waste gas face-to-face contact, vertical decurrent water is by the exhaust heating who comes to the head-on, the waste gas heat is absorbed by the water and is formed the hot water that has the uniform temperature, the hot water is discharged and is stored in the storage water pitcher, after the high liquid level is reachd to the storage water pitcher, close first pneumatic valve, the water of storage water pitcher gets into the absorption tower once more through first water pump and heats, reach after setting for the temperature, first water pump is closed, in sending hot water into the clear water jar through the pipeline by the second water.

Drawings

Fig. 1 is a schematic block diagram of a waste heat recovery system.

Wherein, 1, an absorption tower; 2. a water storage tank; 3. a clean water tank; 4. a first water inlet pipe; 5. a first pneumatic valve; 6. a second water inlet pipe; 7. a first drain pipe; 8. a second drain pipe; 9. an air inlet pipe; 10. a second pneumatic valve; 11. a nozzle; 12. a first water outlet pipe; 13. a gate valve; 14. a first water pump; 15. a first liquid level meter; 16. a second level gauge; 17. a temperature sensor; 18. a second water outlet pipe; 19. a gate valve; 20. a second water pump; 21. a third liquid level meter; 22. a fourth liquid level gauge.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.

According to an embodiment of the application, referring to fig. 1, the waste heat recovery system of the scheme comprises an absorption tower 1, a storage water tank 2 and a clean water tank 3 which are sequentially communicated, wherein the absorption tower 1 is used for absorbing heat of exhaust gas, converting the heat of the exhaust gas into hot water to be carried, and storing the hot water in the storage water tank 2 for recycling.

Transversely set up first drain pipe 7 and second drain pipe 8 in the absorption tower 1, first drain pipe 7 is located the top of second drain pipe 8, offers a plurality of nozzles 11 on first drain pipe 7 and the second drain pipe 8.

The first water discharge pipe 7 is communicated with municipal tap water through the first water inlet pipe 4, and is used for introducing municipal water into the absorption tower 1 for spraying and exchanging heat with hot waste gas.

The first air-operated valve 5 is installed on the first water inlet pipe 4, the first air-operated valve 5 and the second air-operated valve 10 are both DN80 air-operated valves, and the first air-operated valve 5 is used for controlling the amount of the pipeline flowing into the absorption tower 1.

The second drain pipe 8 is communicated with the water outlet end at the bottom of the storage water tank 2 through the second water inlet pipe 6, the first water pump 14 and the gate valve 13 are sequentially installed on the second water inlet pipe 6, and the first water pump 14 is used for pumping water in the storage water tank 2 into the absorption tower 1 so as to achieve the effect of water recycling.

The gate valve 13 is DN80 gate valve 13, which is used to control the open and close of the pipeline.

The bottom of the absorption tower 1 is communicated with the top of the storage water tank 2 through a first water outlet pipe 12, and hot water after heat exchange is guided into the storage water tank 2 through the first water outlet pipe 12.

The absorption tower 1 is communicated with an air outlet pipe of a hot air dryer through an air inlet pipe 9, and a second pneumatic valve 10 is arranged on the air inlet pipe 9 and used for guiding waste gas with waste heat into the absorption tower 1.

A first liquid level meter 15, a second liquid level meter 16 and a first temperature sensor 17 are turned in dark from high to low in the storage water tank 2; the storage water tank 2 is communicated with the clean water tank 3 through a second water pump 20 and a gate valve 13; the clean water tank 3 is sequentially provided with a third liquid level meter 21 and a fourth liquid level meter 22.

The first liquid level meter 15, the second liquid level meter 16, the third liquid level meter 21 and the fourth liquid level meter 22 are digital display static pressure liquid level meters ACD-201L.

The temperature sensor 17 is a TSP temperature sensor 17 for detecting temperature information in the storage water tank 2 in real time.

The bottom of the water storage tank 2 is communicated with a second water outlet pipe 18, and a gate valve 13 is arranged on the second water outlet pipe 18.

The working principle of the scheme is as follows:

the waste gas of the dryer is discharged into an absorption tower 1 through an air inlet pipe 9, municipal water passes through a first water inlet pipe 4 and enters the absorption tower 1 under the control of an electromagnetic pneumatic valve, a nozzle 11 is arranged inside the absorption tower 1, the municipal water is directly sprayed into the absorption tower 1 through the nozzle 11, water sprayed out of the nozzle 11 is in face-to-face contact with the waste gas discharged by the dryer, water running vertically downwards is heated by the oncoming waste gas, the heat of the waste gas is absorbed by the water to form hot water with a certain temperature, the hot water is discharged into a storage water tank 2 to be stored, when the storage water tank reaches a high liquid level, a first pneumatic valve 5 is closed, the water in the storage water tank enters the absorption tower 1 again through a first water pump 14 to be heated, after the set water temperature is reached, the first water pump 14 is closed, and the hot water is sent into a clean water tank 3 through a.

While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims

1. A waste heat recovery system is characterized in that: comprises an absorption tower, a storage water tank and a clean water tank which are communicated in sequence; a first drain pipe and a second drain pipe are transversely arranged in the absorption tower, and a plurality of nozzles are arranged on the first drain pipe and the second drain pipe; the first drainage pipe is communicated with municipal tap water through a first water inlet pipe; the second water discharge pipe is communicated with the water outlet end at the bottom of the water storage tank through a second water inlet pipe; the bottom of the absorption tower is communicated with the top of the water storage tank through a first water outlet pipe, and the absorption tower is communicated with an air outlet pipe of the hot air dryer through an air inlet pipe;

a first liquid level meter, a second liquid level meter and a first temperature sensor are sequentially arranged in the water storage tank from high to low; the storage water tank is communicated with the clean water tank through a second water pump and a gate valve; and a third liquid level meter and a fourth liquid level meter are sequentially arranged on the clean water tank.

2. The heat recovery system of claim 1, wherein: the first drain pipe is positioned above the second drain pipe.

3. The heat recovery system of claim 1, wherein: and a first pneumatic valve is arranged on the first water inlet pipe.

4. The heat recovery system of claim 1, wherein: and a first water pump and a gate valve are sequentially installed on the second water inlet pipe.

5. The heat recovery system of claim 1, wherein: and a second pneumatic valve is arranged on the air inlet pipe.

6. The heat recovery system of claim 1, wherein: the bottom of the water storage tank is communicated with a second water outlet pipe, and a gate valve is installed on the second water outlet pipe.

7. The heat recovery system of claim 1, wherein: the first liquid level meter, the second liquid level meter, the third liquid level meter and the fourth liquid level meter are digital display static pressure liquid level meters ACD-201L.

8. The heat recovery system of claim 1, wherein: the gate valve is a DN80 gate valve.