JP3190155U - Dyeing machine heat exchange system - Google Patents

Abstract

The present invention provides a heat exchange system for a dyeing machine that reduces consumption of water resources and energy by using air as a source of a heat exchange device.
A supply pipe is connected to one end of a heat exchange device and communicates with a steam inlet 411 and a cold air inlet 422, respectively, and a first control valve V1 and a cold air inlet provided in the steam inlet 411 are provided. One of steam and cold air is selected by the second control valve V <b> 2 provided at 412 and fed into the heat exchange device 40. The blower 50 is provided at the front end of the cold air inlet 412, and sends cold air to the heat exchange device 40 by generating wind pressure. The discharge pipe 42 is connected to the other end of the heat exchange device 40 and is used to discharge the condensate or air of the heat exchange device 40.
[Selection] Figure 5

Description

  The present invention relates to a heat exchange system for a dyeing machine, and more particularly, to a system that selects air and lowers the temperature of a dye solution in a heat exchanger.

  In a conventional cloth dyeing operation, after the dye liquid ejected from the nozzle 12 in the machine tip of the cylinder 10 pushes the cloth 1, the cloth 1 and the dye liquid 2 are passed through the cloth guide tube. After entering into the cylinder 10 and being dyed, a plurality of fabrics 1 and 2 are obtained by pulling up by the cloth pulling pulley 11 at the front end of the machine and pushing the dyeing liquid 2 ejected from the nozzle 12. The process of dyeing the fabric is completed. Since the dye liquor 2 needs to be heated or cooled in the heat exchange device 40, the quality necessary for dyeing the fabric 1 can be reached by controlling the temperature in the cloth dyeing process. As shown in FIG.

  When the temperature is raised in the conventional heat exchange device 40, the temperature of the dye liquor 2 is mostly raised by steam. On the contrary, when the temperature of the dye liquor 2 is lowered, in many cases, heat exchange is performed between the cooling water and the dye liquor 2. A conventional apparatus is shown in FIG. However, although the cooling water supply is convenient, the temperature of the cooling water is raised after lowering the temperature of the dye liquor. If the cooling water is recirculated and used, secondary heat exchange is required, so this method not only increases the cost of the equipment, but also entails energy in the secondary heat exchange process. Cost is required. Alternatively, the cooling water that completes the cooling of the dye liquor is discharged, but such a method results in a waste of water resources.

  Therefore, air is a kind of clean and inexpensive resource, and it is not a waste of resources to exhaust the heated air to the atmosphere after heat exchange. He has been engaged in the technical field of dyeing and arranging business, and has made efforts to save energy and, through long-term examination and research, revealed that air can be used as a source of heat exchange equipment.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a heat exchange system for a dyeing machine that reduces consumption of water resources and energy by using air as a source of a heat exchange device. There is.

  The technical means applied in the present invention in order to realize the above-described object are as follows. The tube portion is provided with a cloth pulling pulley and a nozzle at the front end portion thereof. The cloth guide tube is connected to the nozzle and the end of the cylinder portion, and forms a circuit for circulating and dyeing the cloth. The dye supply device has a pump and a transport pipeline, and is used for extracting the dye solution from the cylinder portion and transporting it to the dye circulation device of the nozzle. In addition, the heat exchange device is provided with a flow pipe therein, and the dyeing liquid flows through the flow pipe, and heating / cooling is performed.

  The supply pipe is connected to one end of the heat exchange device and communicates with each of the steam inlet and the cold air inlet, and is provided by a first control valve provided at the steam inlet and a second control valve provided at the cold air inlet. One of steam and cold is selected and fed into the heat exchanger. The blower is provided at the front end of the cold air inlet, and sends cold air to the heat exchange device by generating wind pressure. The discharge pipe is connected to the other end of the heat exchange device, and is used to discharge the condensate or air of the heat exchange device.

  Due to the above technical features, this apparatus can reduce consumption of water resources and energy by cooling the dye liquor by sending cold air to the heat exchange device.

It is a figure which shows the heat exchange system of the conventional dyeing machine. It is a mimetic diagram showing the heat exchange system of the dyeing machine by one embodiment of the present invention. It is a schematic diagram which shows the temperature fall by the air cooling of the heat exchange system of the dyeing machine by one Embodiment of this invention. FIG. 3 is a cross-sectional view taken along line 3A-3A in FIG. 3. It is sectional drawing which shows the heat exchange system of the dyeing | staining machine by other embodiment of this invention. It is a characteristic view which shows the temperature rising and temperature falling state of the heat exchange apparatus by one Embodiment of this invention. It is a schematic diagram which shows the heat exchange system of the dyeing | staining machine by other embodiment of this invention.

(One embodiment)
First, as shown in FIGS. 2 to 4, a heat exchange system for a dyeing machine according to an embodiment of the present invention is as follows.
The cylinder part 10 is provided with a cloth pulling pulley 11 and a nozzle 12 at the front end of the machine. The cloth guide tube 20 is connected from the nozzle 12 to reach the end of the tube portion, and forms a circuit that circulates the cloth 1 and dyes it. The dye supply device 30 includes a pump 31 and a transport pipe 32, and is used to transport the dye solution 2 in the nozzle 12 to the circulation device (guide tube 20) after extracting the dye solution 2 from the cylindrical portion 10. . Further, the heat exchange device 40 is provided with a flow pipe therein, and the dye liquor 2 flows through the flow pipe, and heating / cooling is performed. Since the above configuration belongs to the prior art (PRIOR / ART), detailed description thereof is omitted here.

  Next, the main features of the present invention are as follows. The supply pipe 41 is connected to one end of the heat exchange device 40 and communicated with the steam inlet 411 and the cold air inlet 412. In addition, one of the steam and the cold air is selected by the first control valve V1 and the second control valve V2 provided at each upper portion thereof, and is sent to the heat exchange device 40. The heat exchange apparatus described above includes a multi-tube heat exchanger (Shell and Tube Heat Exchanger) or a double-tube heat exchanger (Tube-in-Tube Heat Exchanger). As shown in FIGS. 3 and 3A, this type of heat exchanger has an outer shell or outer tube 43, a plurality of transport tubes 44 provided in the outer tube 43, and the outer tube 43. A heat exchange space 45 is formed with the outer peripheral surfaces of the plurality of transport pipes 44.

  The air blower 50 is provided at the front end of the cold air inlet 412 and sends cold air to the heat exchange device 40 by generating wind pressure. In one embodiment, the blower can be a forced air blower. When the forced draft fan is started, the external cold air can be directly sucked in immediately, and the wind pressure generated by the forced draft fan sends the cold air to the heat exchange device 40. By controlling the rotational speed of the ventilator, the wind pressure and the wind speed can be adjusted.

  The discharge pipe 42 is connected to the other end of the heat exchange device 40. In the present embodiment, the discharge pipe 42 communicates with at least one condensate outlet 421 and an air outlet 422. In addition, the condensate or the cold air of the heat exchange device 40 is selected and discharged by the third control valve V3 and the fourth control valve V4 provided at the respective upper portions thereof.

  Therefore, the first control valve V1 at the steam inlet 411 and the third control valve V3 at the condensate outlet 421 are turned on, and the second control valve V2 at the cold air inlet 412 and the fourth control valve V4 at the air outlet 422 are turned on. By turning off (OFF), the dye liquor which distribute | circulates the heat exchange apparatus 40 is made into a temperature rising state.

  As shown in FIG. 3, the first control valve V1 at the steam inlet 411 and the third control valve V3 at the condensate outlet 421 are turned off, and the second control valve V2 at the cold inlet 412 and the first control valve V3 at the air outlet 422 are turned off. By turning on (ON) the four control valves V4 and starting the blower device 50, it is possible to directly suck in the external cold air, and by sending the cold air to the heat exchange device 40 by the generated wind pressure, The dye liquor 2 flowing through the heat exchanging device 40 is cooled by air cooling.

  As shown in FIG. 4, according to the results of actual temperature rise and temperature drop tests, the standard dyeing process usually starts using steam temperature rise from 20 ° C. and then set according to the properties and demands of the fabric. Can do. For example, in one embodiment, 2 ° C. is raised every 2 minutes, warmed to 80 ° C. and then kept warm for 15 minutes, raised 1.5 ° C. per minute, raised to 130 ° C. and kept warm for 20 minutes. Then start to cool down. When the temperature is lowered, the dyeing process is completed after the temperature is lowered by 1.5 ° C. per minute and lowered from 130 ° C. to 90 ° C. A temperature drop curve when the temperature is lowered with cooling water is shown as a solid line (W), and a temperature drop curve when the temperature is lowered with cold air is shown as a dotted line (A). As can be seen from the temperature increase curve and temperature decrease curve shown in the graph, the temperature increase process is relatively long in the entire dyeing process. In addition, in order to ensure the dyeing quality of the fabric, it is necessary to accurately set the temperature rising time. The temperature lowering process is merely for cooling the dyeing liquid, and the cooling of the dyeing liquid with cooling water is slightly faster than the cooling of the dyeing liquid with cool air, but the difference is not significant. Does not affect the effect. In addition, the heat exchange device 40 increases the overall heat conduction area by increasing the density of installation of the transport pipe 44 (COMPACTNESS) by the method shown in FIG. The same curve (W) can be obtained. In the present invention, heat exchange is performed by an air-cooling method, and although the temperature lowering effect is similar to that of the water-cooling heat exchange, the air-cooling heat exchange can reach the purpose of reducing water resources. In addition, the air is not only abundant but also the air exhausted after the heat exchange is still clean and no subsequent processing problems occur, reducing the trouble and burden on the traders.

  In addition, as shown in FIG. 5, the supply pipe 41 in another embodiment of the present invention is further connected to the cooling water inlet 413 and the fifth control valve V5, and the discharge pipe 42 is further connected to the cooling water. The outlet 423 and the sixth control valve V6 are communicated. The discharge pipe 42 further includes a manual drain valve 424 provided between the condensate outlet 421 and the third control valve V3. In the present embodiment, the dye liquor 2 is cooled by sending one of cooling water or cold air to the heat exchange device 40. In other words, the present invention can obtain an optimal effect by selecting air cooling or water cooling as required by simultaneously installing an air cooling device on the original water cooling heat exchange device.

1 fabric,
2 dyeing liquor,
10 tube section,
11 Cloth pulling pulley,
12 nozzles,
20 cloth guide tube,
30 Dye supply device,
31 pump,
32 Transport pipeline,
40 heat exchange device,
41 supply pipe,
411 steam inlet,
412 cold air inlet,
413 Cooling water inlet,
42 discharge pipe,
421 Condensate outlet,
422 air outlet,
423 cooling water outlet,
424 manual drainpipe,
43 Outer pipe,
44 transport pipes,
45 heat exchange space,
50 blower,
V1 first control valve,
V2 second control valve,
V3 third control valve,
V4 fourth control valve,
V5 fifth control valve,
V6 Sixth control valve.

Claims (6)

A cylinder part provided with a cloth pulling pulley and a nozzle at the front end part;
A cloth guide tube connected to the nozzle and the end of the tube portion, forming a circuit for circulating and dyeing the cloth;
A dye supply device that includes a pump and a transport line, extracts the dye from the cylinder, and sends it to the nozzle;
A circulation pipe is provided inside, a heat exchange device for heating / cooling the dye liquor flowing through the circulation pipe,
A first control valve connected to one end of the heat exchange device and communicated with each of the steam inlet and the cold air inlet, and a first control valve provided at the steam inlet and a second control valve provided at the cold air inlet A supply pipe for feeding one of steam and cold into the heat exchange device;
A blower device that is provided at the front end of the cold air inlet and sends cold air to the heat exchange device by generating wind pressure;
A discharge pipe connected to the other end of the heat exchange device and used to discharge condensate or air of the heat exchange device,
A dyeing machine heat exchange system, wherein the dye liquor flowing in the heat exchange device rises or falls to a predetermined temperature.   The discharge pipe communicates with at least one of a condensate outlet and an air outlet, and the heat is generated by a third control valve provided at the condensate outlet and a fourth control valve provided at the air outlet. 2. The heat exchange system for a dyeing machine according to claim 1, wherein the heat exchange system is used for selectively discharging condensate or air of the exchange device.   The heat exchange system for a dyeing machine according to claim 1, wherein the blower is a forced air blower.   The heat exchange system for a dyeing machine according to claim 1, wherein the heat exchange device is a multi-tube heat exchanger or a double-tube heat exchanger.   The dyeing machine heat exchange system according to claim 2, wherein the discharge pipe further includes a manual drainage valve provided between the condensate outlet and the third control valve. The supply pipe further has a cooling water inlet and a fifth control valve,
The heat exchange system for a dyeing machine according to claim 1, wherein the discharge pipe further includes a cooling water outlet and a sixth control valve.

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