Gas steam roller ironing machine based on tubular heat exchange and drainage circulation structure

Abstract

A gas steam drum ironing machine based on a tubular heat exchange and water-draining circulation structure, wherein a heat exchanger (2) is installed on the upper part of a gas heater (1), and a heat exchange tube (8) is arranged in the heat exchanger (2); the heat exchange tube (8) is connected to the ironing drum (4) through a steam pipe (3), and at the same time, the ironing drum (4) is connected to a water trap (5) through a return pipe (11), and then connected to the heat exchange tube (8) through a high-pressure plunger pump (6). The ironing machine adopts gas heating steam circulation for high temperature and high pressure, and discharges condensed water out of the drum in time, thereby reducing steam consumption; the ironing machine has a simple structure, excellent performance, safety and reliability, and is easy to operate and maintain. The ironing machine has high heat dissipation efficiency, good ironing effect, high heating efficiency, and faster ironing speed. Energy saving can reach 45%-50%.

Description

Technical Field

[0001] The utility model belongs to the technical field of ironing, flattening or folding textiles classified as IPC D06F, and in particular relates to a structural innovation and improvement technology of a drum-type steam ironing device heated by gas. Background Art

[0002] The ironing machine is a kind of washing machine, mainly used for ironing equipment in laundry rooms. The ironing machine is an efficient and convenient ironing equipment, widely used in service industries such as laundries.

[0003] Traditional ironing machines have a long history and usually include a single or two rollers or ironing drums. Modern ironing machines may contain three ironing drums, which are rotated by hand or electricity. Among them, steam ironing equipment has become the mainstream equipment with wide production, sales and application. Steam-heated ironing machines have uniform and constant heating, so they are the most widely used.

[0004] After the ironing drum is heated to a certain temperature by steam, when the wet clothes pass between the two rollers, a large amount of moisture can be removed and the ironing effect can be achieved.

[0005] The steam ironing machine is also equipped with a water tank and an evaporator to generate steam. The high temperature and high humidity of the steam relax the clothing fibers and achieve the ironing effect. According to the structure, the ironing machine is divided into two categories: rotary type and flat type. Their common characteristics are: large ironing area, greatly improving the ironing speed and effect.

[0006] Although there are great differences in structure between rotary ironing machines and flat ironing machines, the key components are the ironing plate and the roller. Among them, the utility model mainly studies the roller structure ironing machine.

[0007] Industrial gas ironing machines mainly use natural gas or liquefied gas as fuel. The heat generated by the burner directly heats the ironing drum. The fabric that needs to be ironed after washing and contains water is wrapped on the drum by the gas ironing machine conveyor belt to absorb heat and rotate with the drum. When it reaches the outlet of the gas ironing machine, the fabric is dry and flat. For example, patent application 202122113189.3 is a multifunctional gas ironing machine, comprising a gas ironing machine body, a switching power supply, an electromagnetic valve, a manual valve, and also having a first temperature and a second temperature detection circuit, a combustion detection circuit, and a gas flow regulating mechanism; the gas flow regulating mechanism, the natural gas pipe, the electromagnetic valve, the manual valve, and the gas ironing machine body are connected; the first and second temperature detection circuits each include a thermistor and a trigger sub-circuit, the thermistor is installed on the frame of the gas ironing machine body, the combustion detection circuit includes a temperature switch and a control sub-circuit, the temperature switch is installed under the burner of the gas ironing machine body, the switching power supply, the control sub-circuit of the combustion detection circuit, and the trigger sub-circuit of the first temperature detection circuit and the second temperature detection circuit are installed in the component box, and are electrically connected to the temperature switch, thermistor, and the gas flow regulating mechanism.

[0008] Patent application 202023084731.9 discloses a trough ironing machine with a built-in gas boiler, which belongs to the technical field of ironing machines. It includes a base, a box, a heating trough, a driving web roller, a heating transition bridge, a cloth feeding device, a cloth discharging device, a gas boiler, a thermal oil expansion tank and a magnetic thermal oil centrifugal pump; the gas boiler is provided with an oil storage interlayer filled with thermal oil, and the two ends of the gas boiler are respectively provided with an oil inlet 1 and an oil outlet 1; the oil outlet 1 is connected to an oil pipeline 1, and the oil outlet 1 is connected to the oil inlet 2 provided on the heating trough through the oil pipeline 1, and the oil inlet 1 of the gas boiler is connected to the oil pipeline 2, and the oil inlet 1 is connected to one end of the magnetic thermal oil centrifugal pump through the oil pipeline 2.

[0009] It has been disclosed that direct-fired gas ironing machines use natural gas as a clean energy source and adopt open flames to directly heat the inner wall of the ironing drum. This type of technology has many shortcomings, such as poor consistency of the drum surface temperature and insufficient continuity of the drum temperature. The gas ironing machine technology is in urgent need of improvement and development. Utility Model Content

[0010] The technical problem to be solved by the present invention is that in view of the above existing problems and technical requirements, the present invention proposes a gas steam drum ironing machine based on a tubular heat exchange and drainage circulation structure to solve the existing technical problems found in the above background technology research.

[0011] To this end, the utility model includes: a gas heater, a heat exchanger, a steam pipeline, an ironing drum, a steam trap, a high-pressure plunger pump, a drum shaft and a return pipe. A heat exchanger is installed on the upper part of the gas heater, and a heat exchange pipe is arranged in the heat exchanger; the heat exchange pipe is connected to the ironing drum through the steam pipeline, and at the same time, the ironing drum is connected to the steam trap through the return pipe, and then connected to the heat exchange pipe through the high-pressure plunger pump.

[0012] Wherein, a safety valve is installed on the steam pipe. A steam trap is installed on the steam trap. The steam trap includes a mechanical steam trap, a thermostatic steam trap, and a thermodynamic steam trap. The heat exchange pipe is a heat exchange pipe or a heat exchange coil. The ironing roller is hingedly installed on the support plate through the roller shaft.

[0013] Furthermore, in order to achieve the above-mentioned purpose, the present invention is configured as follows:

[0014] In particular, a heat exchange tube is arranged in the heat exchanger, and the heat exchange tube is connected to the steam pipeline to the drum shaft, and the drum shaft is installed in the middle of the end surface of the ironing drum. At the same time, the outer end of the drum shaft is coaxially slidably connected to the rotary joint, and the rotary joint has a coaxial sleeve structure; the middle of the outer end surface of the rotary joint is connected to the condensate outlet, and the condensate outlet is connected to the condensate channel of the middle axis of the rotary joint, and the condensate channel is further connected to the inner cavity of the ironing drum through the steam siphon passing through the middle axis of the drum shaft and opens at the inner bottom of the ironing drum; at the same time, the outer wall of the rotary joint is connected to the steam inlet, and the steam inlet is connected to the fluid channel between the outer wall of the steam siphon and the inner wall of the rotary joint or the inner wall of the drum shaft in the rotary joint, and further connected to the inner cavity of the ironing drum; the steam inlet is connected to the steam pipeline, and the condensate outlet is connected to the steam trap. Heat collecting fins protruding toward the shaft are evenly arranged on the inner wall of the ironing roller.

[0015] In particular, the outer wall of the ironing drum is covered with drum felt; the ironing drum is flatly embedded in the middle upper side of the insulation tank with a tile-shaped structure, and a flexible groove plate is lined on the inner wall of the insulation tank; a steam inlet and a condensed water outlet are arranged on the outer wall of the insulation tank; and air holes are evenly distributed on the inner wall of the insulation tank.

[0016] In particular, at least one of the ironing drum, the steam trap, the high-pressure plunger pump, the drum shaft and the water return pipe is equipped with a temperature controller.

[0017] Compared with the prior art, the utility model has the following beneficial effects: it adopts gas heating steam circulation for high temperature and high pressure ironing, discharges condensed water out of the drum in time, and reduces steam consumption; it has simple structure, excellent performance, safety and reliability, and is easy to operate and maintain. It has high heat dissipation efficiency, good ironing effect, high heating efficiency, and faster ironing speed. It can save energy by up to 45%-50%. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings are for illustration only and should not be construed as limiting the present invention in any way. By referring to the following drawings, readers can understand the embodiments of the present invention and further understand the advantages and technical features of the present invention.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 This is a schematic structural diagram of Example 1 of the utility model.

[0021] Figure 3 This is a schematic diagram of the installation structure of the ironing roller in Example 1 of the utility model.

[0022] Figure 4 This is a schematic diagram of the installation structure of the ironing roller in Example 2 of the utility model.

[0023] The reference numerals include: 1-gas heater, 2-heat exchanger, 3-steam pipe, 4-ironing roller, 5-drain, 6-high-pressure plunger pump, 7-roller shaft; 8-heat exchange tube, 9-steam inlet, 10-condensate outlet, 11-return pipe; 12-heat collecting fin, 13-rotating joint, 14-steam siphon, 15-support plate; 16-roller felt, 17-flexible trough plate, 18-insulation trough. DETAILED DESCRIPTION

[0024] It should be noted that:

[0025] The terms "comprise", "comprises", "having" and any variations thereof are intended to cover other possible options under the same logic that are not listed. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatus.

[0026] In the description of the present utility model, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In order to enable those skilled in the art to better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only an embodiment of a part of the utility model, rather than all the embodiments.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by ordinary technicians in the field to which the utility model belongs. When there is a conflict, the definitions in this specification shall prevail.

[0030] The utility model is used in service industries such as laundries and service stations, and is mostly a medium or large ironing machine with a large ironing area, high heating efficiency and faster ironing speed.

[0031] The utility model comprises: a gas heater 1, a heat exchanger 2, a steam pipeline 3, an ironing roller 4, a steam trap 5, a high-pressure plunger pump 6, a roller shaft 7 and a water return pipe 11.

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Reference Figure 1As shown, a heat exchanger 2 is installed on the upper part of the gas heater 1, and a heat exchange tube 8 is arranged in the heat exchanger 2; the heat exchange tube 8 is connected to the ironing drum 4 through the steam pipe 3, and at the same time, the ironing drum 4 is connected to the steam trap 5 through the return pipe 11, and then connected to the heat exchange tube 8 through the high-pressure plunger pump 6.

[0034] In the above, a safety valve is installed on the steam pipe 3.

[0035] In the above description, a steam trap is installed on the steam trap 5 .

[0036] In the above, the heat exchange tube 8 is a heat exchange exhaust tube or a heat exchange coil.

[0037] The content of the utility model can be more easily understood by selecting the following preferred implementation methods of the utility model and the embodiments included. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by ordinary technicians in the field to which the utility model belongs. When there is a contradiction, the definition in this specification shall prevail. Although the embodiments of the utility model are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the attached claims.

[0038] Embodiment 1: Select the design mode of hot steam passing into the ironing cylinder 4; Figure 2 and 3 As shown, a heat exchange tube 8 is arranged in the heat exchanger 2, and the heat exchange tube 8 is connected to the steam pipe 3 to the drum shaft 7. The drum shaft 7 is installed in the middle of the end surface of the ironing drum 4. At the same time, the outer end of the drum shaft 7 is coaxially slidably connected to the rotary joint 13, and the rotary joint 13 has a coaxial sleeve structure; a condensate outlet 10 is connected to the middle of the outer end surface of the rotary joint 13, and the condensate outlet 10 is connected to the condensate channel of the middle axis of the rotary joint 13, and the condensate channel is further connected to the inner cavity of the ironing drum 4 through a steam siphon 14 passing through the middle axis of the drum shaft 7 and opens at the inner bottom of the ironing drum 4; at the same time, a steam inlet 9 is connected to the outer wall of the rotary joint 13, and the steam inlet 9 is connected to the fluid channel between the outer wall of the steam siphon 14 and the inner wall of the rotary joint 13 or the inner wall of the drum shaft 7 in the rotary joint 13, and is further connected to the inner cavity of the ironing drum 4; the steam inlet 9 is connected to the steam pipe 3, and the condensate outlet 10 is connected to the steam trap 5.

[0039] In the above, the inner wall of the ironing drum 4 is evenly provided with heat collecting fins 12 protruding toward the axis.

[0040] In the embodiment of the utility model, the gas heater 1 is a device that uses natural gas or liquefied gas as fuel for heating. Its working principle is to send the gas to the fuel valve of the gas heater 1 through the gas pipeline, and then ignite and burn through the ignition device to generate heat, and the cold water flows into the heat exchanger 2 in the gas heater 1 to be heated, so as to achieve the purpose of heating or hot water supply. The advantage of the gas heater 1 lies first in its high efficiency. Since the combustion of gas can release a large amount of heat energy, the water can be heated to the required temperature in a short time, thereby greatly saving the heating time and quantity. Secondly, the energy-saving performance of the gas heater 1 is also very good. In the process of heating water, it almost does not generate any energy waste. Compared with traditional electric heaters and electric water heaters, it can save the cost and loss of energy conversion and transportation, which can not only reduce the power consumption, but also reduce the energy cost. Thirdly, the safety of the gas heater 1 is also very high. The gas heater 1 is provided with multiple safety protection mechanisms such as isolation devices and safety valves, which effectively prevent the occurrence of safety accidents such as gas leakage and explosion. In addition, the gas heater 1 also has a water-saving effect. Due to its fast heating speed and short required heating time, the user can reduce the water consumption, further improving the efficiency of water use.

[0041] In the embodiment of the utility model, the steam trap 5 is also referred to as a steam trap, also called an automatic drainer or a condensate drainer, which is divided into steam system use and gas system use. The steam trap 5 is usually installed at the terminal of a pipeline heated by steam, and its function is to continuously discharge the condensate in the steam-heated pipeline to the outside of the pipeline. Usually most steam traps can automatically identify steam and exclude thermostatic water, thereby achieving the purpose of automatic steam blocking and drainage. The steam trap 5 is widely used in petrochemical, food and pharmaceutical, power plant and other industries, and plays a great role in energy conservation and emission reduction. The steam trap 5 includes a mechanical steam trap, a thermostatic steam trap, and a thermodynamic steam trap. Among them:

[0042] The mechanical steam trap is also called a float type steam trap. It uses the density difference between condensed water and steam. Through the change of condensed water level, the float rises and falls to drive the valve disc to open or close, so as to achieve the purpose of steam blocking and water drainage. The mechanical steam trap has a small degree of subcooling and is not affected by the working pressure and temperature changes. It can drain water as soon as there is water. There is no water in the heating equipment, which can make the heating equipment achieve the best heat exchange efficiency. The maximum back pressure rate is 80%, and the working quality is high. It is the most ideal steam trap for production process heating equipment. Mechanical steam traps include free float type, free semi-float type, lever float type, inverted bucket type, etc.

[0043] Thermostatic steam trap uses the temperature difference between steam and condensate to cause the deformation or expansion of the temperature sensing element to drive the valve core to open and close the valve. Thermostatic steam trap has a relatively large degree of subcooling, generally 15 to 40 degrees. It can use part of the sensible heat in the condensate, and there is always high-temperature condensate in front of the valve, without steam leakage, and the energy-saving effect is significant. It is the most ideal steam trap for steam pipelines, heating pipelines, small heating equipment, heating equipment, and small heating equipment with low temperature requirements. There are diaphragm box type, bellows type, and bimetallic type.

[0044] Thermodynamic steam traps are based on the phase change principle, and rely on the different thermodynamic principles of flow rate and volume change when steam and condensate pass through to produce different pressure differences on the upper and lower parts of the valve plate, driving the valve plate to open and close the valve. Since the working power of the thermodynamic steam trap comes from steam, the steam waste is relatively large. It has a simple structure, is resistant to water hammer, has a maximum backlash of 50%, is noisy, the valve plate works frequently, and has a short service life. There are thermodynamic or disc type, pulse type, orifice plate type.

[0045] When selecting a steam trap, you cannot simply select it based on the maximum discharge volume. You should pay special attention to the following: it is not allowed to apply the steam trap based only on the pipe diameter. Instead, you must select it based on the steam trap selection principles and the specific conditions of the condensate system. First, select the type of steam trap based on the heating equipment and the requirements for discharging condensate. Determine the nominal pressure and valve body material of the steam trap based on the maximum working pressure and maximum working temperature of the steam-using equipment; determine the connection method and installation method of the steam trap, etc. Select and determine the performance parameters of the steam trap based on the size of the discharge volume.

[0046] In the embodiment of the utility model, the operating pressure of the high-pressure plunger pump 6 should generally be between 10MPa and 100MPa. The high-pressure plunger pump 6 is a positive displacement pump, which achieves the purpose of conveying liquid by means of periodic changes in the volume in the working chamber; the mechanical energy of the prime mover is directly converted into pressure energy for conveying liquid through the pump; the capacity of the pump depends only on the change value of the volume of the working chamber and the number of changes per unit time, and is theoretically unrelated to the discharge pressure. The reciprocating pump makes the volume of the working chamber change periodically by means of the reciprocating motion of the piston in the working chamber of the cylinder. Structurally, the working chamber of the reciprocating pump is separated from the outside world by a sealing device, and is communicated or closed with the pipeline through a pump valve or a suction valve and a discharge valve.

[0047] In the embodiment of the utility model, the hot steam outputted from the heat exchange tube 8 of the heat exchanger 2 is transported through the steam pipe 3, and then enters the inner cavity of the ironing drum 4 through the steam inlet 9, the rotary joint 13 and the hollow drum shaft 7. After the heat collection fins 12 participate in the full heat exchange, the condensed water is collected at the bottom of the ironing drum 4. Under the negative pressure of the high-pressure plunger pump 6, the steam siphon 14 sucks these condensed water, and then passes through the return pipe 11 and successively transmits them back to the return end of the heat exchange tube 8 in the heat exchanger 2 through the steam trap 5 and the high-pressure plunger pump 6 for cyclic heating, which greatly improves the ironing efficiency and speeds up the ironing speed. When the area of ​​the heat collection fins 12 is more than twice the area of ​​the outer wall of the ironing drum 4, the ironing speed can be increased by more than 50%, and the working efficiency can be increased by more than 50%. A faster ironing speed can be achieved without increasing the steam pressure and the thermal power of the burner, that is, a faster ironing speed can be achieved under the premise of a lower surface temperature of the ironing drum 4. At the same time, the floor space of the ironing machine is reduced.

[0048] Working principle of the embodiment of the utility model: the gas heater 1 heats the heat exchanger 2, so that the water in the heat exchange tube 8 of the heat exchanger 2 evaporates into steam, which is output to the ironing drum 4 through the steam pipe 3; the ironing drum 4 returns water through the steam trap 5, and is pumped back to the heat exchange tube 8 through the high-pressure plunger pump 6, thereby achieving the purpose of steam circulation.

[0049] Embodiment 2: Select the design mode of the heating groove structure that hot steam is introduced into the lower side of the outer side of the ironing cylinder 4; Figure 4 As shown, the outer wall of the ironing drum 4 is covered with a drum felt 16; the ironing drum 4 is flatly embedded and installed on the upper middle side of the insulation groove 18 of the tile-shaped structure, and a flexible groove plate 17 is lined on the inner wall of the insulation groove 18; a steam inlet 9 and a condensed water outlet 10 are arranged on the outer wall of the insulation groove 18; and air holes are evenly distributed on the inner wall of the insulation groove 18.

[0050] In the above, the ironing cylinder 4 is hingedly mounted on the support plate 15 via the cylinder shaft 7 .

[0051] The implementation principle of this embodiment is as follows: when working, the ironing drum 4 rotates clockwise, and the closed cavity in the heat preservation groove 18 is fed with high-pressure steam from the steam pipe 3, and the material to be ironed is expanded along the axial direction of the ironing drum 4, and enters the gap between the drum felt 16 and the flexible groove plate 17 tangentially, and rotates along the outer wall of the ironing drum 4 and then leaves. Because the gap between the drum felt 16 and the flexible groove plate 17 is very small, when the ironing drum 4 rotates, the drum felt 16 presses the material to be ironed tightly against the surface of the ironing groove of the flexible groove plate 17, and after passing through the ironing groove, it is dried and ironed under high temperature and pressure.

[0052] In the embodiment of the utility model, during operation, it is necessary to regularly check the power supply of the high-pressure plunger pump 6, as well as components such as the steam trap 5 and the steam pipe 3 to ensure that the equipment is in good condition. Regularly clean the inside and surrounding environment of the ironing drum 4, steam trap 5, high-pressure plunger pump 6, drum shaft 7 and return pipe 11 equipment to prevent dust and debris from affecting the ironing effect. Be careful to avoid burns during use, and do not invert or tilt the ironing drum 4 equipment to prevent water from overflowing. To further improve the working conditions, the ironing drum 4, steam trap 5, high-pressure plunger pump 6, drum shaft 7 and return pipe 11 equipment can also be equipped with a temperature controller to adjust the ironing temperature according to the material and thickness of the clothes. In addition, the high-pressure plunger pump 6 adopts a variable frequency speed regulation system for auxiliary management, which will achieve an improved effect of simpler operation and low noise.

[0053] Based on the above embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention, so as to avoid exhaustively listing all implementation methods that are unnecessary and impossible to list comprehensively.

Claims

1. A gas steam roller ironing machine based on a tubular heat exchange and drainage circulation structure, comprising a gas heater (1), a heat exchanger (2), a steam pipeline (3), an ironing roller (4), a drainage device (5), a high-pressure plunger pump (6), a roller shaft (7) and a return pipe (11); characterized in that: A heat exchanger (2) is installed on the upper part of the gas heater (1), and a heat exchange pipe (8) is arranged in the heat exchanger (2); the heat exchange pipe (8) is connected to the ironing roller (4) through a steam pipe (3), and at the same time, the ironing roller (4) is connected to the steam trap (5) through a return pipe (11), and then connected to the heat exchange pipe (8) through a high-pressure plunger pump (6).

2. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: A safety valve is installed on the steam pipeline (3).

3. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: The steam trap (5) is provided with a steam trap valve.

4. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: The steam trap (5) includes a mechanical steam trap, a thermostatic steam trap, and a thermodynamic steam trap.

5. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: The heat exchange tube (8) is a heat exchange row tube or a heat exchange coil.

6. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: The ironing roller (4) is hingedly mounted on a support plate (15) via a roller shaft (7).

7. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: At least one of the ironing cylinder (4), the steam trap (5), the high-pressure plunger pump (6), the cylinder shaft (7) and the return pipe (11) is equipped with a temperature controller.

8. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: A heat exchange tube (8) is arranged in the heat exchanger (2), and the heat exchange tube (8) is connected to the steam pipe (3) to the drum shaft (7), and the drum shaft (7) is installed in the middle of the end surface of the ironing drum (4). At the same time, the outer end of the drum shaft (7) is coaxially slidably connected to the rotary joint (13), and the rotary joint (13) has a coaxial sleeve structure; the middle of the outer end surface of the rotary joint (13) is connected to the condensate outlet (10), and the condensate outlet (10) is connected to the condensate channel of the central axis of the rotary joint (13), and the condensate channel is further connected to the drum through the drum. The steam siphon pipe (14) of the central axis of the shaft (7) is connected to the inner cavity of the ironing drum (4) and opens at the inner bottom of the ironing drum (4); at the same time, the outer wall of the rotary joint (13) is connected to the steam inlet (9), and the steam inlet (9) is connected to the fluid channel between the outer wall of the steam siphon pipe (14) and the inner wall of the rotary joint (13) or the inner wall of the drum shaft (7) in the rotary joint (13), and is further connected to the inner cavity of the ironing drum (4); the steam inlet (9) is connected to the steam pipeline (3), and the condensate outlet (10) is connected to the steam trap (5).

9. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 1 is characterized in that: The outer wall of the ironing roller (4) is covered with a roller felt (16); the ironing roller (4) is flatly embedded in the middle upper side of a heat preservation groove (18) with a tile-shaped structure, and a flexible groove plate (17) is lined on the inner wall of the heat preservation groove (18); a steam inlet (9) and a condensed water outlet (10) are arranged on the outer wall of the heat preservation groove (18); and air holes are evenly distributed on the inner wall of the heat preservation groove (18).

10. The gas steam drum ironing machine based on the tubular heat exchange and drainage circulation structure according to claim 8, characterized in that: Heat collecting fins (12) protruding toward the axis are evenly arranged on the inner wall of the ironing cylinder (4).

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