Heat exchange device of dyeing machine

Abstract

The utility model relates to a heat exchange device of a dyeing machine, which comprises an inner pipe, a jacketed pipe and a smoke pipe, the jacketed pipe sleeves the outer side of the inner pipe, the inner side of the jacketed pipe is provided with a sandwich ring groove, the jacketed pipe is provided with a water inlet and a water outlet which are communicated with the sandwich ring groove, the smoke pipe is connected with one end of the inner pipe, and a combustion pipe is coaxially arranged on the inner side of the inner pipe. One end of the combustion pipe is connected with an external gas source pipe; natural gas is introduced to the combustion pipe through the gas source pipe to be combusted, smoke is discharged from the smoke pipe on one side on the inner side of the inner pipe, dye liquor water enters the interlayer ring groove of the jacketed pipe through the water inlet, the high-temperature smoke in the inner pipe heats the dye liquor water, the heated dye liquor water is discharged through the water outlet, and heat generated by combustion directly heats the dye liquor water. The heat efficiency is high, meanwhile, flue gas is heated on the inner side of the annular jacketed pipe, heat loss is small, and the device has the good effect of heating water for dye liquor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dyeing machines, in particular to a heat exchange device of a dyeing machine. BACKGROUND

[0002] A dyeing machine is a device used for dyeing textiles, which can apply dye evenly to textiles to achieve dyeing effects.

[0003] A dyeing machine generally consists of a dyeing tank, a circulation system, a control system and a heating system. During operation, textiles to be dyed are placed in the dyeing tank, and appropriate amount of dye and auxiliary agent are added. The heating system is started to heat the dye and textiles in the dyeing tank to a certain temperature. The circulation system is started to spray the dye evenly onto the textiles. At the same time, the control system adjusts various parameters to ensure the stability and effect of the dyeing process. When the dyeing is completed, the heating system is turned off, and the cooling device is started to cool the dyeing tank.

[0004] The dyeing machine usually uses steam heating method for heating. The steam generator delivers steam to the heat exchanger through the steam pipeline to heat the dyeing liquid. The heated dyeing liquid is delivered to the dyeing machine for dyeing. However, the heat transfer efficiency of the steam heating method is low after multiple heat exchanges, and the heating speed of the dyeing liquid is slow, which results in high energy consumption. CONTENT OF THE INVENTION

[0005] In order to solve the problems of low heat efficiency and high energy consumption of steam heating, the present application provides a heat exchange device of a dyeing machine.

[0006] The heat exchange device of the dyeing machine provided by the present application adopts the following technical scheme:

[0007] A heat exchange device of a dyeing machine, comprising an inner pipe, a jacket pipe and a smoke pipe. The jacket pipe is sleeved outside the inner pipe, and the two ends of the inner pipe are located outside the jacket pipe. A jacket ring groove is arranged inside the jacket pipe and at the circumferential outer wall of the inner pipe. The jacket pipe is provided with a water inlet and a water outlet at both sides, respectively. The water inlet and the water outlet are in communication with the jacket ring groove. The smoke pipe is connected to one end of the inner pipe. A combustion pipe is coaxially arranged inside the inner pipe and at the side away from the smoke pipe. One end of the combustion pipe is connected to an external gas source pipe.

[0008] By adopting the technical scheme, the gas source pipe guides the natural gas to the combustion pipe for combustion, the flue gas is discharged from the smoke pipe on one side, the dyeing water enters the annular groove of the jacket pipe through the water inlet, the high-temperature flue gas in the inner pipe heats the dyeing water, and the heated dyeing water is discharged through the water outlet, the heat generated by combustion is directly used for heating the dyeing water, the heat efficiency is high, the flue gas is heated in the annular jacket pipe, the heat loss is small, and the heating effect of the dyeing water is good.

[0009] Optionally, a first fixing strip is arranged between the combustion pipe and the inner pipe, the first fixing strip is distributed along the length direction of the combustion pipe, a second fixing strip is arranged between the inner pipe and the jacket pipe, and the second fixing strip is distributed along the length direction of the inner pipe.

[0010] By adopting the technical scheme, the first fixing strip is used for fixing the combustion pipe and the inner pipe, the combustion pipe is supported, the second fixing strip is used for fixing the inner pipe and the jacket pipe, the jacket pipe is supported, and the fixing and support effects are good.

[0011] Optionally, a ring is arranged at the water inlet and the water outlet of the jacket pipe, and the ring is located outside the second fixing strip.

[0012] By adopting the technical scheme, when the water is fed and discharged, the water enters the position between the second fixing strips through the ring, and then is discharged through the water outlet on the other side of the ring, so that the inconvenience of feeding and discharging water is reduced.

[0013] Optionally, a preheating water tank is arranged at one end of the smoke pipe away from the inner pipe, a hollow water tank is arranged in the preheating water tank, an upper water inlet and a lower water outlet are arranged on the preheating water tank and communicate with the water tank, a heat exchange pipe is arranged in the preheating water tank, one end of the heat exchange pipe is connected with the smoke pipe, and the other end of the heat exchange pipe away from the smoke pipe is located outside the preheating water tank.

[0014] By adopting the technical scheme, the hot flue gas in the smoke pipe is transported through the heat exchange pipe, the water in the preheating water tank enters through the upper water inlet and is transported out through the lower water outlet, the flue gas with residual heat in the smoke pipe is heat exchanged, and energy waste is reduced.

[0015] Optionally, a plurality of heat exchange pipes are arranged and are parallel to each other, mounting plates are arranged at both ends in the preheating water tank, the mounting plates are provided with insertion grooves, and both ends of the heat exchange pipe are respectively connected with the insertion grooves on the mounting plates.

[0016] By adopting the technical scheme, the flue gas passes through the preheating water tank and then is discharged after passing through a plurality of heat exchange pipes, the contact area with the water in the preheating water tank is large, and the heat exchange efficiency is high.

[0017] Optionally, the circumferential side wall of the combustion pipe is provided with a plurality of through holes.

[0018] By using the above technical scheme, the gas enters the inner pipe through the through holes of the combustion pipe and is evenly distributed in the circumferential direction of the combustion pipe, so that the gas is fully combusted.

[0019] Optionally, the preheating water tank is provided with a liquid level pipe, which is distributed along the direction of the water inlet and the water outlet.

[0020] By using the above technical scheme, the water level in the preheating water tank can be easily observed.

[0021] Optionally, the preheating water tank is provided with a thermometer.

[0022] By using the above technical scheme, the temperature in the preheating water tank can be observed in real time, so that the water outlet temperature can be easily controlled.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The gas source pipe passes the natural gas to the combustion pipe for combustion, the flue gas is on the inner side of the inner pipe and is discharged through the smoke pipe on one side, the dye water enters the interlayer annular groove of the jacket pipe through the water inlet, the high-temperature flue gas in the inner pipe heats the dye water, the heated dye water is discharged through the water outlet, the heat generated by combustion directly heats the dye water, the thermal efficiency is high, at the same time, the flue gas heats in the inner side of the annular jacket pipe, the heat loss is small, and the heating effect of the dye water is good;

[0025] 2. The flue gas passes through the preheating water tank and is discharged after passing through a plurality of heat exchange pipes, and has a large contact area with the water in the preheating water tank, so that the heat exchange efficiency is high;

[0026] 3. The temperature in the preheating water tank can be observed in real time, so that the water outlet temperature can be easily controlled. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a cross-sectional view of the present application.

[0028] Figure 2 is an enlarged cross-sectional view of part A of the present application.

[0029] Figure 3 is a front view of the mounting plate of the present application.

[0030] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions and / or relative positioning of some of the elements in the drawings can be exaggerated relative to other elements to help to improve understanding of the present application embodiments.

[0031] Fig. 1, inner tube; 11, first fixing strip; 12, second fixing strip; 2, jacketed tube; 21, interlayer annular groove; 22, water inlet; 23, water outlet; 24, ring; 3, smoke tube; 4, combustion tube; 41, igniter; 42, through hole; 5, preheating water tank; 51, water tank; 52, upper water inlet; 53, lower water outlet; 54, heat exchange tube; 55, mounting plate; 551, slot; 56, exhaust pipe; 57, liquid level pipe; 58, thermometer. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] The present application discloses a heat exchange device of a dyeing machine, referring to Figure 1 , comprising an inner tube 1, a jacketed tube 2 and a smoke tube 3, the jacketed tube 2 is sleeved outside the inner tube 1, both ends of the inner tube 1 are located outside the jacketed tube 2, an interlayer annular groove 21 is arranged at the outer wall of the inner tube 1, a water inlet 22 and a water outlet 23 are arranged at the length direction of the jacketed tube 2, the water inlet 22 and the water outlet 23 are in communication with the interlayer annular groove 21, the smoke tube 3 is connected with one end of the inner tube 1, a combustion tube 4 is coaxially arranged at the inner side of the inner tube 1 and located at the side away from the smoke tube 3, an igniter 41 is arranged in the combustion tube 4, and one end of the combustion tube 4 away from the smoke tube 3 is connected with an external gas source pipe.

[0034] The gas source pipe passes natural gas to the combustion tube 4, the gas is ignited by the igniter 41, the smoke gas is transported to the smoke tube 3 at one side through the inner tube 1, the dyeing water enters the interlayer annular groove 21 of the jacketed tube 2 through the water inlet 22, the high-temperature smoke gas in the inner tube 1 heats the dyeing water, the heated dyeing water is discharged through the water outlet 23, the heat generated by combustion directly heats the dyeing water, the heat efficiency is high, the smoke gas is heated in the annular jacketed tube 2, the heat loss is small, and the heating effect of the dyeing water is good.

[0035] Referring to Figure 1 and Figure 2 , the first fixing strip 11 is arranged between the combustion tube 4 and the inner tube 1, the first fixing strip 11 is distributed along the length direction of the combustion tube 4, the first fixing strip 11 is provided with four and is uniformly arranged along the circumferential direction of the combustion tube 4, the second fixing strip 12 is arranged between the inner tube 1 and the jacketed tube 2, the second fixing strip 12 is distributed along the length direction of the inner tube 1, the second fixing strip 12 is provided with four and is uniformly arranged along the circumferential direction of the inner tube 1. The combustion tube 4 is supported by the first fixing strip 11, the inner tube 1 and the jacketed tube 2 are fixed by the second fixing strip 12, the jacketed tube 2 is supported, and each tube is fixed and supported with each other.

[0036] Referring to Figure 1 and Figure 2The circumferential side wall of the combustion pipe 4 is provided with a plurality of through holes 42, and the gas enters the inner pipe 1 through the through holes 42 of the combustion pipe 4, and is uniformly distributed in the circumferential direction of the combustion pipe 4, so that the gas is fully combusted.

[0037] With reference to Figure 1 and Figure 2 , the jacket pipe 2 is provided with a ring 24 at the water inlet 22 and the water outlet 23, and the ring 24 is located outside the second fixed strip 12. When water enters and exits, the water enters the position between the second fixed strips 12 through the ring 24, and then exits through the water outlet 23 of the other side ring 24, thereby reducing the inconvenience of water entering and exiting.

[0038] With reference to Figure 1 and Figure 3 , the smoke pipe 3 is provided with a preheating water tank 5 at one end away from the inner pipe 1. The preheating water tank 5 is horizontally arranged, and a hollow water tank 51 is arranged in the preheating water tank 5. An upper water inlet 52 and a lower water inlet 53 are arranged on the preheating water tank 5 and located on the upper and lower sides of the preheating water tank 5. A heat exchange pipe 54 is arranged in the preheating water tank 5. One end of the heat exchange pipe 54 is connected with the smoke pipe 3, and the other end of the heat exchange pipe 54 away from the smoke pipe 3 is located outside the preheating water tank 5. The hot flue gas in the smoke pipe 3 is transported through the heat exchange pipe 54, and the water in the preheating water tank 5 enters through the upper water inlet 52 and is transported out through the lower water inlet 53, thereby exchanging heat with the flue gas in the smoke pipe 3. The preheating water tank 5 can obtain slightly lower preheating water, thereby reducing energy waste.

[0039] With reference to Figure 1 and Figure 3 , the heat exchange pipe 54 is horizontally arranged and parallel to each other. Installation plates 55 are vertically arranged at both ends of the inner side of the water tank 51 of the preheating water tank 5. The installation plates 55 are disc-shaped and sealed with the inner side wall of the preheating water tank 5 through a sealing ring. The preheating water tank 5 is provided with an exhaust pipe 56 at one end away from the smoke pipe 3. The plurality of heat exchange pipes 54 are annularly and uniformly distributed along the radial direction of the installation plate 55. The installation plate 55 is provided with a slot 551, and the two ends of the heat exchange pipe 54 are respectively inserted and connected with the slots 551 on the two installation plates 55. The flue gas passes into the preheating water tank 5, passes through the plurality of heat exchange pipes 54, and then is discharged. The contact area with the water in the preheating water tank 5 is large, and the heat exchange efficiency is high.

[0040] With reference to Figure 1 , a liquid level pipe 57 is arranged in the preheating water tank 5 in the vertical direction, so as to facilitate observation of the water level in the preheating water tank 5. A thermometer 58 is arranged in the preheating water tank 5, so as to observe the temperature in the preheating water tank 5 in real time, thereby facilitating control of the water temperature.

[0041] The implementation principle of the heat exchange device of the dyeing machine is as follows: the gas source pipe passes natural gas to the combustion pipe 4 for combustion, the flue gas is discharged from the smoke pipe 3 on one side in the inner pipe 1, the dyeing water enters the clamping layer ring groove 21 of the jacket pipe 2 through the water inlet 22, the high-temperature flue gas in the inner pipe 1 heats the dyeing water, the heated dyeing water is discharged through the water outlet 23, the heat generated by combustion directly heats the dyeing water, the hot flue gas in the smoke pipe 3 is transported through the heat exchange pipe 54, the water in the preheating water tank 5 enters through the water inlet 52 and is transported out through the water outlet 53, and the flue gas with residual heat in the smoke pipe 3 is heat exchanged.

[0042] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A heat exchange device for a dyeing machine, comprising an inner tube (1), a jacketed tube (2), and a smoke pipe (3), wherein the jacketed tube (2) is sleeved on the outside of the inner tube (1), and both ends of the inner tube (1) are located on the outside of the jacketed tube (2), characterized in that: A jacketed annular groove (21) is provided on the inner side of the jacketed tube (2) and on the outer circumferential wall of the inner tube (1). A water inlet (22) and a water outlet (23) are provided on both sides of the jacketed tube (2). Both the water inlet (22) and the water outlet (23) are connected to the jacketed annular groove (21). The flue pipe (3) is connected to one end of the inner tube (1). A combustion pipe (4) is coaxially provided on the inner side of the inner tube (1) and on the side away from the flue pipe (3). One end of the combustion pipe (4) is connected to an external gas source pipe.

2. The heat exchange device of a dyeing machine according to claim 1, characterized in that: A first fixing strip (11) is provided between the combustion tube (4) and the inner tube (1), and the first fixing strip (11) is distributed along the length direction of the combustion tube (4). A second fixing strip (12) is provided between the inner tube (1) and the jacket tube (2), and the second fixing strip (12) is distributed along the length direction of the inner tube (1).

3. The heat exchange device for a dyeing machine according to claim 2, characterized in that: The jacket tube (2) is provided with a ring (24) at the inlet (22) and outlet (23), and the ring (24) is located outside the second fixing strip (12).

4. The heat exchange device for a dyeing machine according to claim 1, characterized in that: A preheating water tank (5) is provided at the end of the flue pipe (3) away from the inner pipe (1). A hollow water tank (51) is provided inside the preheating water tank (5). An upper water inlet (52) and a lower water inlet (53) communicating with the water tank (51) are provided on the preheating water tank (5). A heat exchange tube (54) is provided inside the preheating water tank (5). One end of the heat exchange tube (54) is connected to the flue pipe (3), and the end of the heat exchange tube (54) away from the flue pipe (3) is located outside the preheating water tank (5).

5. The heat exchange device for a dyeing machine according to claim 4, characterized in that: The heat exchange tubes (54) are arranged in a plurality of parallel configurations. The preheating water tank (5) is provided with mounting plates (55) at both ends. The mounting plates (55) are provided with slots (551). The two ends of the heat exchange tubes (54) are respectively inserted into the slots (551) on the mounting plates (55) on both sides.

6. The heat exchange device of a dyeing machine according to claim 1, characterized in that: The combustion tube (4) has several through holes (42) on its circumferential sidewall.

7. The heat exchange device for a dyeing machine according to claim 4, characterized in that: The preheating tank (5) is equipped with a level pipe (57), which is distributed along the direction of the inlet (22) and the outlet (23).

8. The heat exchange device for a dyeing machine according to claim 4, characterized in that: A thermometer (58) is installed inside the preheated water tank (5).

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