Steam waste heat recycling device for drying room of setting machine

By designing a steam waste heat recovery and utilization device in the stenter drying room, and using a flash tank and magnetic level gauge to control the hot water circulation, the problem of waste heat in the stenter drying room was solved, and the efficient utilization of steam and energy saving were achieved.

CN223678199UActive Publication Date: 2025-12-16JIANGSU RIXIN PRINTING & DYEING MASCH CO LTD
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Patent Information

Application Number
CN202423156361.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-16
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

The waste heat in the existing setting machine drying room cannot be recovered and utilized, resulting in energy waste and increased production costs.

Method used

A waste heat recovery device for a setting machine drying chamber was designed. The condensate discharged from the drying chamber is flashed in a flash tank to form flash steam and hot water, which are then mixed with medium-pressure steam and reused in the drying chamber. At the same time, a magnetic level gauge is used to control the circulation of hot water, thereby realizing the utilization of waste heat from the hot water drying cylinder unit.

Benefits of technology

It improved steam utilization, saved energy, reduced production costs, and increased processing speed by approximately 20%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a setting machine drying room steam waste heat recycling device, and belongs to the technical field of the printing and dyeing industry. Comprising a drying room and a heat source device, an inlet of the drying room is connected with the heat source device through a steam inlet header pipe, steam enters the heat source device to form medium-pressure steam, and then the medium-pressure steam flows into the drying room through the steam inlet header pipe to dry fabric in the drying room; a drying room drainage port is connected with an inlet of the flash tank through a drainage header pipe, and a steam outlet of the flash tank is connected with a circulation port of the heat source device through a circulation pipeline; a water outlet of the flash tank is connected with an inlet of the drying cylinder unit through a water inlet header pipe, a pneumatic control valve is arranged on the water inlet header pipe, an outlet of the drying cylinder unit is connected with a water drainage header pipe, a liquid level meter is arranged on the flash tank, and the liquid level meter is in signal connection with the pneumatic control valve. The device is convenient to operate, the steam utilization rate is increased, the energy consumption is reduced, and the production cost is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of setting machine drying room steam waste heat recycling device, belong to printing and dyeing industry technical field. BACKGROUND

[0002] At present, setting machine is the key equipment of textile printing and dyeing finishing, can improve the hand feeling, slip, color, width, strength etc. of textile. The existing setting machine is mainly composed of cloth feeding part, weft straightener, chain, drying room and cloth falling and rolling device five parts, when textile is transported through drying room, steam in drying room is dried and finished to make it set.

[0003] The waste heat in the existing setting machine drying room cannot be recycled, which will cause waste of heat, on the one hand, waste of energy, on the other hand, increase production cost. SUMMARY

[0004] The utility model provides a kind of setting machine drying room steam waste heat recycling device for the above prior art, convenient operation, improve steam use rate, save energy consumption, reduce production cost.

[0005] The utility model solves the technical scheme that the above problem adopts: a kind of setting machine drying room steam waste heat recycling device, including drying room and heat source device, the drying room import is connected with heat source device by steam inlet main pipe, steam body enters the heat source device, forms medium-pressure steam, after by steam inlet main pipe, it flows into drying room, and the fabric in drying room is dried;The drying room drain outlet is connected with flash tank import by drain main pipe, the flash tank steam outlet is connected with heat source device circulation port by circulation pipeline, the flash tank is flashed to the drain of drying room, forms flash steam and hot water, and flash steam is returned to heat source device by circulation pipeline;The water outlet of the flash tank is connected with drying cylinder unit import by water inlet main pipe, the water inlet main pipe is equipped with pneumatic regulating valve, the drying cylinder unit outlet is connected with drain main pipe, the flash tank is equipped with liquid level meter, and the liquid level meter is connected with pneumatic regulating valve signal.

[0006] The drying cylinder unit includes multiple drying cylinders, multiple drying cylinder inlets are connected with water inlet main pipe, and multiple drying cylinder outlets are connected with drain main pipe.

[0007] The liquid level meter is magnetic reed liquid level meter.

[0008] The heat source device is pneumatic steam heat pump.

[0009] Compared with the prior art, the advantages of the utility model lie in: a setting machine drying room steam waste heat recycling device, the medium pressure steam after flowing into the drying room through the steam inlet main pipe, the fabric in the drying room is dried. The flash tank flashes the drainage of the drying room, forms flash steam and hot water, the flash steam after is recycled to the pneumatic steam heat pump through the circulation pipeline, mixes with the medium pressure steam, and then enters the drying room again, improves the steam use rate, and achieves the energy saving purpose. The magnetic flap liquid level meter detects the hot water liquid level in the flash tank, when the hot water liquid level in the flash tank reaches the set liquid level of the magnetic flap liquid level meter, the pneumatic regulating valve is opened, so that the hot water in the flash tank flows to the hot water drying cylinder unit through the water inlet main pipe, and the fabric passes through the hot water drying cylinder unit before entering the setting machine drying room to use the waste heat. The application is convenient to operate, improves the steam use rate, saves the energy consumption, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a schematic view of a setting machine drying room steam waste heat recycling device of the utility model embodiment;

[0011] Fig. 1 steam inlet, 2 pneumatic steam heat pump, 3 steam outlet, 4 steam inlet main pipe, 5 drying room, 6 drainage main pipe, 7 flash tank, 8 magnetic flap liquid level meter, 9 water inlet main pipe, 10 drying cylinder, 11 drainage main pipe, 12 pneumatic regulating valve. DETAILED DESCRIPTION

[0012] The utility model is further described in detail below in combination with the embodiment of the drawings.

[0013] As Figure 1As shown, the steam waste heat recycling device of the setting machine drying room in the embodiment comprises a drying room 5 and a pneumatic steam heat pump 2, and the pneumatic steam heat pump 2 is provided with a steam inlet 1, a steam outlet 3 and a circulating port. The inlet of the drying room 5 is connected with the steam outlet 3 of the pneumatic steam heat pump 2 through a steam inlet main pipe 4, steam enters the pneumatic steam heat pump 2 through the steam inlet 1, medium-pressure steam is formed, and then the steam flows into the drying room 5 through the steam inlet main pipe 4 to dry the fabric in the drying room 5. The drainage port of the drying room 5 is connected with the inlet of a flash tank 7 through a drainage main pipe 6, the steam outlet of the flash tank 7 is connected with the circulating port of the pneumatic steam heat pump 2 through a circulating pipeline, the flash tank 7 flashes the drainage discharged from the drying room 5 to form flash steam and hot water, then the flash steam returns to the pneumatic steam heat pump 2 through the circulating pipeline, mixes with the medium-pressure steam and then enters the drying room 5 again for use, the steam utilization rate is improved, and the energy-saving purpose is achieved. The water outlet of the flash tank 7 is connected with the inlet of a drying cylinder unit through a water inlet main pipe 9, and the outlet of the drying cylinder unit is connected with a drainage main pipe 11. The water inlet main pipe 9 is provided with a pneumatic regulating valve 12, the flash tank 7 is provided with a magnetic flap liquid level meter 8, the flap liquid level meter 8 is signal-connected with the pneumatic regulating valve 12, the magnetic flap liquid level meter 8 detects the liquid level of the hot water in the flash tank 7, when the liquid level of the hot water in the flash tank reaches the set liquid level of the magnetic flap liquid level meter, the pneumatic regulating valve is opened, so that the hot water in the flash tank flows to the hot water drying cylinder unit through the water inlet main pipe, and the fabric passes through the hot water drying cylinder unit to use the waste heat before entering the setting machine drying room, so that the energy consumption can be saved and the processing speed can be improved by about 20%; the water temperature after heat exchange is reduced to 60-70 DEG C, and then flows out through the drainage main pipe; and the hot water discharged from the drying cylinder can be used again according to the use of hot water of other equipment.

[0014] The above drying cylinder unit comprises a plurality of drying cylinders 10, the water inlets of the drying cylinders are respectively connected with the water inlet main pipe, and the water outlets of the drying cylinders are respectively connected with the drainage main pipe.

[0015] The application has the advantages of convenient operation, improved steam utilization rate, saved energy consumption and reduced production cost.

[0016] In addition to the above embodiment, the utility model also includes other implementation manners, and the technical solutions formed by using equivalent transformation or equivalent replacement should fall within the protection scope of the utility model claims.

Claims

1. A device for recovering and utilizing steam waste heat from a setting machine oven, characterized by: The drying room and the heat source device are connected by the steam inlet pipe, the steam enters the heat source device to form medium-pressure steam, and then flows into the drying room through the steam inlet pipe to dry the fabric in the drying room; the drying room drainage outlet is connected with the flash tank inlet through the drainage pipe, the flash tank steam outlet is connected with the heat source device circulation port through the circulation pipeline, the flash tank flashes the drainage discharged from the drying room to form flash steam and hot water, the flash steam returns to the heat source device through the circulation pipeline; the flash tank water outlet is connected with the drying cylinder unit inlet through the water inlet pipe, the water inlet pipe is provided with a pneumatic regulating valve, the drying cylinder unit outlet is connected with the drainage pipe, the flash tank is provided with a liquid level meter, and the liquid level meter is signal connected with the pneumatic regulating valve.

2. A device for recovering and utilizing steam waste heat from a setting machine drying chamber according to claim 1, characterized in that: The drying cylinder unit comprises a plurality of drying cylinders, the drying cylinder inlets are connected with the water inlet pipe, and the drying cylinder outlets are connected with the drainage pipe.

3. The device according to claim 1, characterized in that: The liquid level meter is a magnetic reed liquid level meter.

4. The device according to claim 1, characterized in that: The heat source device is a pneumatic steam heat pump.