Heat energy recovery device for textile dyeing

Abstract

The invention discloses a textile dyeing heat energy recovery device which comprises a support, a steam boiler, a steam roller and a roller motor, the two sides of the steam roller are rotationally connected with the support, the roller motor drives the steam roller to rotate, the steam boiler introduces hot steam into the steam roller, and a waste steam recovery mechanism is arranged above the support. The waste steam recycling mechanism comprises a collecting ceiling, an air extracting pump, a conveying pipeline and a heat exchanger, the collecting ceiling is fixedly connected with the top of the support, an air extracting opening of the air extracting pump penetrates through the collecting ceiling to be communicated with the lower portion of the collecting ceiling, and an air outlet of the air extracting pump is communicated with a hot fluid inlet of the heat exchanger through the conveying pipeline; and a liquefied water suction mechanism is arranged on the inner side of the steam roller. By arranging the waste steam recovery mechanism and the liquefied water suction mechanism, heat energy waste can be reduced, and the heat energy utilization efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile dyeing, in particular to a heat energy recovery device for textile dyeing. Background Art

[0002] Textile dyeing refers to the process of attaching color to fibers, fabrics or finished clothes by using dyes or pigments. Dyeing technology occupies an important position in the textile industry. It not only determines the visual effect of the fabric, but is also closely related to its performance. In the dyeing process, the dyed textiles need to be dried as soon as possible to prevent the fabric from drying and hardening. Common drying methods include drum drying, hot air drying or infrared drying, among which drum drying is one of the most commonly used drying methods in the dyeing process due to its low cost and high drying efficiency. However, the traditional drum drying method will have a lot of heat energy waste and low heat energy utilization efficiency. For example, a large amount of waste steam will be emitted during the drying of dyed textiles. The steam will cause harm to the health of the operators in the factory and bring about heat energy waste. In addition, when the drum is dried, steam is introduced into the drum, and part of the steam is liquefied inside the drum, which affects the contact between the steam and the inner wall of the drum, reducing the heat energy utilization efficiency. Therefore, in the field of textile dyeing technology, it is necessary to propose a heat energy recovery device for textile dyeing that can reduce heat energy waste and improve heat energy utilization efficiency. Summary of the invention

[0003] In view of the above-mentioned prior art, the present invention provides a heat energy recovery device for textile dyeing, and the main technical problem to be solved is how to reduce heat energy waste and improve heat energy utilization efficiency.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] A heat energy recovery device for textile dyeing comprises a bracket, a steam boiler, a steam drum and a drum motor, wherein both sides of the steam drum are rotatably connected to the bracket, the drum motor drives the steam drum to rotate, the steam boiler passes hot steam into the steam drum, a waste steam recovery mechanism is arranged above the bracket, the waste steam recovery mechanism comprises a collecting ceiling, an exhaust pump, a conveying pipeline and a heat exchanger, the collecting ceiling is fixedly connected to the top of the bracket, the exhaust port of the exhaust pump passes through the collecting ceiling and is connected to the bottom of the collecting ceiling, the exhaust port of the exhaust pump is connected to the hot fluid inlet of the heat exchanger through the conveying pipeline, and a liquefied water suction mechanism is arranged on the inner side of the steam drum.

[0006] Preferably, the cold fluid inlet of the heat exchanger is connected to distilled water, the cold fluid outlet of the heat exchanger is connected to a hot water tank, and the hot fluid outlet of the heat exchanger is connected to a waste water tank.

[0007] Preferably, the vacuum pump is configured as a piston pump, and two of the piston pumps are provided. The two piston pumps are symmetrically arranged on both sides of the collecting ceiling, and the air outlets of the two piston pumps are connected to the hot fluid inlet of the heat exchanger through the conveying pipeline. The two piston pumps are configured to perform vacuum alternately.

[0008] Preferably, the right side of the steam drum is connected to the steam boiler through an air inlet pipe, and the left side of the steam drum is connected to an air outlet pipe. A steam mixing chamber is provided in the middle of the air inlet pipe, and the left side of the steam drum is connected to the steam mixing chamber through the air outlet pipe.

[0009] Preferably, a water storage annular groove is provided on one side of the inner wall of the steam drum close to the air outlet pipe.

[0010] Preferably, the liquefied water pumping mechanism includes a water pumping pipe, which is arranged on a side of the steam drum close to the water storage annular groove, the water pumping port of the water pumping pipe is arranged at the bottom of the water storage annular groove, the air inlet of the air outlet pipe is arranged above the water pumping port of the water pumping pipe, and a floating plate rubber plug is provided at the bottom of the air outlet pipe, the floating plate rubber plug is connected to the air outlet pipe by a sliding rod so as to be slidable up and down, and the water pumping pipe is connected to the hot water tank on the side away from the steam drum.

[0011] Preferably, the floating plate rubber plug comprises a bottom floating plate and a semi-ellipsoidal rubber plug, and the bottom of the air outlet pipe is configured to be an inverted trumpet shape.

[0012] Preferably, sealing plates and sealing bearings are provided at the connections between the air inlet pipe, the air outlet pipe and the water pumping pipe and the steam drum; the outer sides of the air inlet pipe, the air outlet pipe and the water pumping pipe are fixedly connected to the middle of the corresponding sealing plates; and the sealing plates are rotatably connected to the steam drum via the sealing bearings.

[0013] Preferably, a check valve is provided on one side of the water pumping pipe close to the water storage annular groove.

[0014] Preferably, there are a plurality of steam rollers, which are arranged in two rows that are evenly staggered, and the roller motor drives the plurality of steam rollers to rotate synchronously through a worm gear and a worm.

[0015] The beneficial effect of the present invention is that the waste steam generated when the textiles are dried can be collected by the collection ceiling in cooperation with the vacuum pump, and sent to the heat exchanger through the delivery pipeline for heat exchange, so as to recycle the heat energy of the waste steam and reduce the waste of heat energy. At the same time, the device also has a liquefied water suction mechanism on the inside of the steam drum, which can suck and recycle the liquefied water inside the steam drum, so that the hot steam can be continuously introduced and discharged, and effectively contact the inner wall of the steam drum, thereby improving the efficiency of heat energy utilization.

[0016] In summary, the present application can reduce heat energy waste and improve heat energy utilization efficiency by providing a waste steam recovery mechanism and a liquefied water suction mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a heat recovery device for textile dyeing in an embodiment of the present application;

[0018] Figure 2 It is a right view of a heat energy recovery device for textile dyeing in an embodiment of the present application;

[0019] Figure 3 is a cross-sectional view of a steam drum in an embodiment of the present application;

[0020] Figure 4 This is an enlarged view of point A in the embodiment of the present application;

[0021] Figure 5 A cross-sectional view of a water pumping pipeline in an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of a system module of a heat energy recovery device for textile dyeing in an embodiment of the present application;

[0023] Description of Figure Numbers:

[0024] 1. Bracket; 2. Steam drum; 3. Drum motor; 4. Waste steam recovery mechanism; 5. Liquefied water suction mechanism;

[0025] 201, air outlet pipe; 202, floating plate rubber plug; 203, sliding rod; 204, bottom floating plate; 205, semi-ellipsoidal rubber plug; 206, sealing plate; 207, sealing bearing; 208, flow valve; 209, air inlet pipe;

[0026] 301, worm wheel; 302, worm;

[0027] 401, collecting ceiling; 402, vacuum pump; 403, conveying pipeline;

[0028] 501. Water storage annular groove; 502. Water pumping pipe; 503. Check valve. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0030] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] Example 1

[0032] See attached Figure 1-6The present application provides a heat energy recovery device for textile dyeing, comprising a bracket 1, a steam boiler, a steam drum 2 and a drum motor 3, wherein both sides of the steam drum 2 are rotatably connected to the bracket 1, the drum motor 3 drives the steam drum 2 to rotate, and the steam boiler passes hot steam into the steam drum 2, and a waste steam recovery mechanism 4 is arranged above the bracket 1, and the waste steam recovery mechanism 4 comprises a collecting ceiling 401, an exhaust pump 402, a conveying pipeline 403 and a heat exchanger, the collecting ceiling 401 is fixedly connected to the top of the bracket 1, the exhaust port of the exhaust pump 402 passes through the collecting ceiling 401 and is communicated with the bottom of the collecting ceiling 401, the exhaust port of the exhaust pump 402 is communicated with the hot fluid inlet of the heat exchanger through the conveying pipeline 403, and a liquefied water suction mechanism 5 is arranged on the inner side of the steam drum 2. This device is provided with a waste steam recovery mechanism 4, so that the waste steam generated when the textiles are dried can be collected by the collection ceiling 401 in cooperation with the vacuum pump 402, and sent to the heat exchanger for heat exchange through the delivery pipe 403, so that the heat energy of the waste steam can be recovered and utilized, thereby reducing the waste of heat energy. At the same time, this device is also provided with a liquefied water suction mechanism 5 on the inner side of the steam drum 2, which can extract and recover the liquefied water inside the steam drum 2, so that the hot steam can be continuously introduced and discharged, and effectively contact with the inner wall of the steam drum 2, thereby improving the efficiency of heat energy utilization. In summary, this device is provided with a waste steam recovery mechanism 4 and a liquefied water suction mechanism 5, so that the waste of heat energy can be reduced and the efficiency of heat energy utilization can be improved.

[0033] Specifically, the cold fluid inlet of the heat exchanger is connected to distilled water, the cold fluid outlet of the heat exchanger is connected to a hot water tank, and the hot fluid outlet of the heat exchanger is connected to a waste water tank. The heat exchanger in this embodiment is configured as a shell-and-tube heat exchanger. It should be understood that the heat exchanger in this embodiment can also use other common partition-type heat exchangers to separate the cold fluid and the hot fluid for heat exchange, so as to avoid impurities in the waste steam from affecting the heat recovery treatment of the cold fluid after heat exchange. The distilled water connected to the cold fluid inlet of the heat exchanger is heated after heat exchange, and a part of it is added to the steam boiler for heating and pressurization to produce hot steam. If there is any excess, it is sent to other sections or collected and stored for waste heat recovery, thereby reducing the heat required for heating the steam boiler and saving the energy consumption of the steam boiler.

[0034] Specifically, the vacuum pump 402 is configured as a piston pump, and two piston pumps are provided. The two piston pumps are symmetrically arranged on both sides of the collection ceiling 401. The air outlets of the two piston pumps are connected to the hot fluid inlet of the heat exchanger through the delivery pipeline 403, and the two piston pumps are configured to perform vacuuming alternately. The device configures the vacuum pump 402 as a piston pump, which can reduce the contact between the complex internal structure of the pump body and the steam, and reduce the corrosion and damage of the steam with impurities to the internal structure of the pump body. At the same time, the two piston pumps are used alternately, which makes the process of vacuuming and collecting waste steam more stable and improves the collection efficiency.

[0035] Specifically, the right side of the steam drum 2 is connected to the steam boiler through the air inlet pipe 209, and the left side of the steam drum 2 is connected to the air outlet pipe 201. A steam mixing chamber is provided in the middle of the air inlet pipe 209, and the left side of the steam drum 2 is connected to the steam mixing chamber through the air outlet pipe 201. The low-temperature steam discharged from the steam drum 2 is continuously passed into the steam mixing chamber, mixed with the high-temperature and high-pressure steam heated and pressurized by the boiler to reach the drying temperature and pressure, and then discharged into the steam drum 2 together, which can save the energy consumption of boiler heating.

[0036] Example 2

[0037] See attached Figure 1-6 The difference between this embodiment and embodiment 1 is that a water storage annular groove 501 is provided on the inner wall of the steam drum 2 near the air outlet pipe 201. The water storage annular groove 501 can collect the liquefied water in the steam drum 2, so as to prevent a large amount of liquefied water from staying and spilling on the inner wall of the steam drum 2, thereby reducing the steam drying efficiency.

[0038] Specifically, the liquefied water suction mechanism 5 includes a water pumping pipe 502, which is arranged on a side of the steam drum 2 close to the water storage annular groove 501, and the water pumping port of the water pumping pipe 502 is arranged at the bottom of the water storage annular groove 501, and the air inlet of the air outlet pipe 201 is arranged above the water pumping port of the water pumping pipe 502. A floating plate rubber plug 202 is arranged at the bottom of the air outlet pipe 201, and the floating plate rubber plug 202 is connected to the air outlet pipe 201 by a sliding rod 203 so as to be slidable up and down, and the water pumping pipe 502 is connected to the hot water tank away from the side of the steam drum 2.

[0039] When the height of the liquefied water collected in the water storage annular groove 501 is lower than the bottom of the air outlet pipe 201, the steam in the steam drum 2 enters from the air inlet pipe 209 and is discharged from the air outlet pipe 201 into the steam mixing chamber; when the height of the liquefied water collected in the water storage annular groove 501 is close to or higher than the bottom of the air outlet pipe 201, the floating plate rubber plug 202 rises due to the buoyancy of the liquefied water and blocks the air outlet pipe 201, the pressure in the steam drum 2 increases, pushing the liquefied water into the pumping pipe 502 and discharged into the hot water tank, so that the liquefied water in the steam drum 2 can be effectively collected.

[0040] Specifically, the floating plate rubber plug 202 includes a bottom floating plate 204 and a semi-ellipsoid rubber plug 205, and the bottom of the outlet pipe 201 is set to an inverted trumpet shape. The semi-ellipsoid rubber plug 205 cooperates with the inverted trumpet shape so that when the water level of the liquefied water rises, the semi-ellipsoid rubber plug 205 can effectively fit with the bottom of the outlet pipe 201 for blocking. At the same time, the bottom of the semi-ellipsoid rubber plug 205 is inconsistent with the inverted trumpet structure shape and cannot be completely fitted with the bottom of the outlet pipe 201. When the water level drops, a small amount of airflow can enter to push the semi-ellipsoid rubber plug 205 away, thereby preventing the internal pressure of the steam drum 2 from being too high, causing the floating plate rubber plug 202 to completely block the outlet pipe 201, and the floating plate rubber plug 202 cannot be lowered even when the water level drops.

[0041] Specifically, the connection between the air inlet pipe 209, the air outlet pipe 201, the water pumping pipe 502 and the steam drum 2 is provided with a sealing plate 206 and a sealing bearing 207. The outer sides of the air inlet pipe 209, the air outlet pipe 201 and the water pumping pipe 502 are fixedly connected to the middle of the corresponding sealing plate 206, and the sealing plate 206 is rotatably connected to the steam drum 2 through the sealing bearing 207. The sealing plate 206 cooperates with the sealing bearing 207 to improve the sealing performance, reduce the loss of water vapor, and reduce the waste of heat energy.

[0042] Specifically, a check valve 503 is provided on one side of the water pumping pipe 502 close to the water storage annular groove 501. The check valve 503 is configured so that water can flow into the water pumping pipe 502 from the steam drum 2, but cannot flow into the steam drum 2 from the water pumping pipe 502. The check valve 503 can prevent the water flow from the vertical pipe part of the water pumping pipe 502 from being discharged after the liquefied water level drops, resulting in a decrease in the liquefied water collection efficiency.

[0043] Specifically, there are a plurality of steam drums 2, and the plurality of steam drums 2 are arranged in two rows that are evenly staggered. The drum motor 3 drives the plurality of steam drums 2 to rotate synchronously through the worm gear 301 and the worm 302. The air inlet pipes 209 on the right side of the plurality of steam drums 2 are all provided with flow valves 208 to ensure that sufficient steam is introduced into any steam drum 2, maintain sufficient air pressure, and ensure the drying effect. The staggered arrangement of the plurality of steam drums 2 can reduce the contact between the steam drums 2 and the external air, reduce the loss of heat energy, and improve the drying effect.

[0044] Working principle: Refer to the attached Figure 6 , distilled water is introduced into the steam boiler to increase the temperature and pressure to produce high-temperature steam, and the high-temperature steam enters the steam mixing chamber and is mixed to the drying temperature and pressure, and then enters the steam drum 2 through the air inlet pipe 209 for drying. The steam drum 2 continues to pass steam, and the cooled steam is discharged from the air outlet pipe 201 on the left and enters the steam mixing chamber again to mix with the steam discharged from the steam boiler. The waste steam at the textile outside the steam drum 2 is collected by the vacuum pump 402 and enters the heat exchanger for heat exchange, so that after the cold fluid distilled water introduced into the heat exchanger is heated, the waste steam is cooled and liquefied and discharged into the waste water tank, and the heated distilled water is discharged into the hot water tank for collection. The liquefied water inside the steam drum 2 is also collected and discharged into the hot water tank through the pumping pipe 502, and the water in the hot water tank is added to the steam boiler for pressurized heating to produce high-temperature steam.

[0045] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A heat energy recovery device for textile dyeing, comprising a support (1), a steam boiler, a steam drum (2) and a drum motor (3), wherein both sides of the steam drum (2) are rotatably connected to the support (1), the drum motor (3) drives the steam drum (2) to rotate, and the steam boiler passes hot steam into the steam drum (2), characterized in that: A waste steam recovery mechanism (4) is arranged above the support (1), and the waste steam recovery mechanism (4) comprises a collecting ceiling (401), an air extraction pump (402), a conveying pipeline (403) and a heat exchanger. The collecting ceiling (401) is fixedly connected to the top of the support (1), and the air extraction port of the air extraction pump (402) passes through the collecting ceiling (401) and is connected to the bottom of the collecting ceiling (401). The air outlet of the air extraction pump (402) is connected to the hot fluid inlet of the heat exchanger through the conveying pipeline (403). A liquefied water suction mechanism (5) is arranged on the inner side of the steam drum (2).

2. A heat recovery device for textile dyeing according to claim 1, characterized in that: The cold fluid inlet of the heat exchanger is connected to distilled water, the cold fluid outlet of the heat exchanger is connected to the hot water tank, and the hot fluid outlet of the heat exchanger is connected to the waste water tank.

3. The heat recovery device for textile dyeing according to claim 1, characterized in that: The vacuum pump (402) is configured as a piston pump, and two of the piston pumps are provided. The two piston pumps are symmetrically arranged on both sides of the collecting ceiling (401), and the air outlets of the two piston pumps are connected to the hot fluid inlet of the heat exchanger through the delivery pipeline (403). The two piston pumps are configured to perform vacuum alternately.

4. A heat recovery device for textile dyeing according to claim 2, characterized in that: The right side of the steam drum (2) is connected to the steam boiler via an air inlet pipe (209), and the left side of the steam drum (2) is connected to an air outlet pipe (201). A steam mixing chamber is provided in the middle of the air inlet pipe (209), and the left side of the steam drum (2) is connected to the steam mixing chamber via the air outlet pipe (201).

5. A heat recovery device for textile dyeing according to claim 4, characterized in that: A water storage annular groove (501) is provided on a side of the inner wall of the steam drum (2) close to the air outlet pipe (201).

6. A heat recovery device for textile dyeing according to claim 5, characterized in that: The liquefied water pumping mechanism (5) comprises a water pumping pipe (502), the water pumping pipe (502) being arranged on a side of the steam drum (2) close to the water storage annular groove (501), the water pumping port of the water pumping pipe (502) being arranged at the bottom of the water storage annular groove (501), the air inlet of the air outlet pipe (201) being arranged above the water pumping port of the water pumping pipe (502), the bottom of the air outlet pipe (201) being provided with a floating plate rubber plug (202), the floating plate rubber plug (202) being connected to the air outlet pipe (201) via a sliding rod (203) so as to be slidable up and down, and the side of the water pumping pipe (502) away from the steam drum (2) being connected to the hot water tank.

7. A heat recovery device for textile dyeing according to claim 6, characterized in that: The floating plate rubber plug (202) comprises a bottom floating plate (204) and a semi-ellipsoidal rubber plug (205), and the bottom of the air outlet pipe (201) is arranged in an inverted trumpet shape.

8. The heat recovery device for textile dyeing according to claim 7, characterized in that: Sealing plates (206) and sealing bearings (207) are provided at the connection points between the air inlet pipe (209), the air outlet pipe (201) and the water pumping pipe (502) and the steam drum (2); the outer sides of the air inlet pipe (209), the air outlet pipe (201) and the water pumping pipe (502) are fixedly connected to the middle of the corresponding sealing plates (206); and the sealing plates (206) are rotatably connected to the steam drum (2) via the sealing bearings (207).

9. A heat recovery device for textile dyeing according to claim 8, characterized in that: A check valve (503) is provided on one side of the water pumping pipe (502) close to the water storage annular groove (501).

10. The heat recovery device for textile dyeing according to claim 1, characterized in that: There are a plurality of steam rollers (2), and the plurality of steam rollers (2) are arranged in two rows that are evenly staggered. The roller motor (3) drives the plurality of steam rollers (2) to rotate synchronously through the worm gear (301) and the worm (302).

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