Mobile melt spinning machine with combined cooling, heating and power

Abstract

The present invention relates to the technical field of polymer material processing, and in particular to a mobile melt spinning machine for trigeneration of cooling, heating and electricity, the structure of which includes a screw extruder, a spinning box, a cooling chamber and a collecting chamber arranged in sequence, and also includes a methanol water hydrogen production power generation system, the system includes a methanol water storage container, a delivery pump, a reformer, a separation chamber, a fuel cell and a control device, the mobile melt spinning machine is provided with a high-temperature gas circuit and a refrigeration circuit, the high-temperature gas circuit is provided with a high-temperature gas collecting device, and the high-temperature gas in the high-temperature gas collecting device comes from the high-temperature residual gas separated from the separation chamber. The present invention makes full use of the heat and electricity generated in the process of reforming methanol water to produce hydrogen and power generation, and combines it with a traditional melt spinning machine, realizes efficient use of energy through intelligent trigeneration control of cooling, heating and electricity, and changes the traditional power supply mode relying on an external power supply, so that the melt spinning machine becomes a convenient and movable device.

Description

Technical Field

[0001] The invention relates to the technical field of polymer material processing, and in particular to a movable melt spinning machine for combined cooling, heating and electricity. Background Art

[0002] A melt spinning machine is a processing equipment that heats and melts a polymer, extrude it through a spinneret, and cools and solidifies it in the air to form fibers. In the prior art, a melt spinning machine mainly includes a screw extruder, a spinning box, a cooling chamber for cooling and solidifying the melt, a winding device, and a heating device and a cooling device. During operation, the polymer is heated and melted by the screw extruder, then enters the spinning box and is extruded through a spinneret to form a melt. After the melt enters the cooling chamber to cool and solidify, it is wound and spun by the winding device. Among them, temperature is the main influencing factor of melt spinning. Both the screw extruder and the spinning box need to be heated to obtain the high temperature required for the melt (about 180~280℃), and cold air needs to be introduced into the cooling chamber to maintain the low temperature required for solidification and molding (about 20~35℃). In the prior art, the first method of heating the screw extruder and the spinning box is mainly to use an electric heater, the most common of which is a high-power resistance wire heater. The disadvantages are: since the temperature required for the melt is as high as 200 degrees or more, it completely relies on an external power supply, resulting in large power consumption and high cost, and it takes a long time for the resistance wire to reach the predetermined temperature, the efficiency is low, and the heating is uneven; in addition, the resistance wire is easily damaged and has a short service life; the second method of cooling and solidification mainly adopts air conditioning refrigeration or water cooling, and the same air conditioning refrigeration or water cooling methods will generate additional energy consumption. At present, it is difficult to carry out energy-saving transformation in terms of heat and electricity, and it is impossible to achieve energy saving and environmental protection in the true sense. In addition, according to the inherent design, the transmission device and other devices that need power supply of the existing melt spinning machine can only rely entirely on an external power supply, which not only causes huge power consumption of the entire equipment, but also the external power supply must be used in a fixed place. Therefore, the portability and convenience of the existing melt spinning machine are greatly limited.

[0003] With the development of new energy technology, the technology of hydrogen production by reforming methanol and water has gradually developed. It can reduce energy consumption and cost in chemical production, and is expected to replace the electrolytic water hydrogen production process, which consumes a lot of electricity. Chinese invention patent 201310340475.0 (applicant: Shanghai Hejide Hydrogen Machinery Co., Ltd.) discloses a methanol-water hydrogen production system. Methanol and water vapor undergo methanol cracking reaction and carbon monoxide shift reaction in the reforming chamber of the reformer under the action of a catalyst at a temperature of 350-570°C and a pressure of 1-5MPa to generate hydrogen and carbon dioxide. This is a multi-component, multi-reaction gas-solid catalytic reaction system. The reaction equations are as follows: (1) CH3OH→CO+2H2; (2) H2O+CO→CO2+H2; (3) CH3OH+H2O→CO2+3H2. The H2 and CO2 generated by the reforming reaction are separated by a palladium membrane separator in the separation chamber to obtain high-purity hydrogen. Chinese invention application 201410622203.4 (applicant: Shanghai Hejide Hydrogen Machinery Co., Ltd.) discloses a generator based on a methanol-water hydrogen production system and a power generation method thereof. The generator uses a fuel cell as a power generation device. The high-purity hydrogen obtained by the methanol-water hydrogen production system is transported to the fuel cell, and the hydrogen reacts electrochemically with oxygen in the air to generate electricity. In the above-mentioned methanol-water hydrogen production and power generation system, during the reforming hydrogen production reaction of methanol and water vapor, since the temperature in the reformer needs to be maintained at 350-570°C, the H2 and CO2 generated by the methanol-water reforming reaction are separated from the hydrogen by a palladium membrane separator, and the remaining CO2 and unreacted water vapor are discharged from the system. These discharged residual gases have very high heat, and their temperature is usually between 300-600°C. If they are discharged directly, a large amount of heat energy will be seriously wasted, resulting in a low utilization rate of the methanol-water raw material.

[0004] Therefore, how to utilize the characteristics of methanol-water hydrogen production technology and apply it to traditional melt spinning machines to achieve improvements on traditional melt spinning machines in terms of high energy consumption, complete reliance on external power supplies, and site restrictions will be a new research direction that breaks through inherent thinking. Summary of the invention

[0005] In view of the above-mentioned technical problems in the prior art, the purpose of the present invention is to provide a portable melt-spinning machine with trigeneration of heat, cooling and electricity, which utilizes the heat energy and electric energy generated in the process of methanol-water reforming hydrogen production and power generation to realize the trigeneration of heat, cooling and electricity of the melt-spinning machine and the intelligent control of temperature and humidity, thereby achieving energy saving and environmental protection, and does not rely on traditional external power supplies, making it a convenient portable equipment.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mobile melt spinning machine for trigeneration of cooling, heating and electricity is provided, comprising a screw extruder, a spinning box, a cooling chamber and a collecting chamber arranged in sequence, wherein: the screw extruder comprises a barrel and a screw, a spinneret is arranged in the spinning box, a winding device is arranged in the collecting chamber, the mobile melt spinning machine also comprises a methanol water hydrogen production power generation system, the methanol water hydrogen production power generation system comprises a methanol water storage container, a delivery pump, a reformer, a fuel cell and a control device, the reformer comprises a reforming chamber, a separation chamber and an electric heater for heating the reforming chamber, the methanol water raw material is transported to the reformer by the delivery pump, and methanol and water undergo reforming in the reformer The hydrogen production reaction produces a mixed gas mainly composed of carbon dioxide and hydrogen. The mixed gas is separated into hydrogen and high-temperature residual gas through a separation chamber. The hydrogen is transported to a fuel cell to generate electricity. Part of the electricity is used to power a delivery pump and an electric heater of the methanol-water hydrogen production power generation system, and part of the electricity is used to power other electrical equipment of the melt spinning machine. Low-temperature air is discharged during the process of generating electricity by the fuel cell. The control device includes a control mainboard, a power supply device and a power output port. The control mainboard controls the operation of the methanol-water hydrogen production power generation system. The power supply device supplies power to the methanol-water reforming hydrogen production power generation system during startup. The power output port is used to output electricity to the outside.

[0008] The movable melt spinning machine also includes an air induction system for cooling and solidifying the melt in the cooling chamber, the air induction system includes a low-temperature air mixer, a humidifier and an air induction device, wherein: the low-temperature air discharged from the fuel cell, the outside air, and the humidifier are respectively connected to the air inlet of the low-temperature air mixer through pipelines, the air outlet of the low-temperature air mixer is connected to the air inlet of the air induction device through a compressor, the air induction device is provided with a plurality of air ducts, a plurality of blowing ports corresponding to the air ducts are distributed on one side of the cooling chamber along the melt flow direction, and the directions of the air ducts and the blowing ports are perpendicular to the melt in the cooling chamber;

[0009] The movable melt spinning machine is provided with a high-temperature gas circuit, in which a high-temperature gas collecting device is provided, and the high-temperature gas in the high-temperature gas collecting device comes from the high-temperature residual gas separated from the separation chamber, and the temperature of the high-temperature residual gas is 300-600°C; the high-temperature gas circuit includes at least one first high-temperature gas circuit for adjusting the barrel temperature and a second high-temperature gas circuit for adjusting the temperature in the spinning box;

[0010] The barrel, the spinning box and the cooling chamber are all provided with temperature sensors, and the temperature sensors are electrically connected to the control device.

[0011] Wherein, the movable melt spinning machine is also provided with a refrigeration circuit for cooling the barrel, and a cooling device is provided on the refrigeration circuit.

[0012] Wherein, the movable melt spinning machine comprises at least one first heat exchanger, and the refrigeration circuit transfers heat to the corresponding high-temperature gas circuit through the at least one first heat exchanger.

[0013] Wherein, the movable melt spinning machine comprises a second heat exchanger, and the refrigeration circuit exchanges heat with the low-temperature air exhausted from the fuel cell through the second heat exchanger.

[0014] Wherein, both the high-temperature gas circuit and the refrigeration circuit are provided with flow control valves, and the flow control valves are electrically connected to the control device.

[0015] Among them, a reversing valve is arranged on the connecting pipeline between the separation chamber and the high-temperature gas collecting device. During the rubber refining process of the melt spinning machine, the high-temperature residual gas separated by the separation chamber enters the high-temperature gas collecting device through the reversing valve; during the cooling process of the melt spinning machine, the high-temperature residual gas separated by the separation chamber is discharged to the outside through the reversing valve.

[0016] Wherein, the barrel and the spinning box are provided with an electric heating device, and the electric heating device comprises an electric heating film, and the electric heating film is provided on the inner wall of the barrel and the box surface of the spinning box.

[0017] Wherein, the low-temperature air mixer is provided with a temperature detection device and a humidity detection device, and the temperature detection device and the humidity detection device are electrically connected to the control device respectively.

[0018] Wherein, the power supply device is a rechargeable battery.

[0019] Wherein, a heat exchanger is arranged on the transport pipeline between the methanol-water storage container and the reformer, and the low-temperature methanol and water raw materials are heat-exchanged with the high-temperature hydrogen separated by the separation chamber.

[0020] Beneficial effects of the present invention:

[0021] Compared with the melt spinning machine of the prior art, the present invention has the following advantages:

[0022] (1) The mobile melt spinning machine for combined cooling, heating and power generation of the present invention comprises the following steps: firstly, the high-temperature waste gas of 300-600°C generated in the process of hydrogen production and power generation by methanol-water reforming is collected by a high-temperature gas collecting device as a high-temperature heat source, and the high-temperature gas circuit is used to heat the screw extruder and the spinning box to provide the temperature required for polymer melting and extrusion into a melt. The high-temperature waste gas is circulated in the high-temperature gas circuit to form a heat source with uniform and stable heat and uniform heat distribution; secondly, the low-temperature air of 40-60°C discharged in the process of power generation by a fuel cell is used as a low-temperature heat source, and Mixed with the outside air to form a mixed air of 20~35℃, which provides the required temperature for cooling and solidifying the melt in the cooling chamber; thirdly, during the startup process of methanol-water reforming hydrogen production, no external power supply is required. The system itself can be powered by its own power supply device. After the fuel cell generates electricity, it will power its own system and all electrical equipment of the melt spinning machine. This completely changes the traditional power supply mode of the melt spinning machine relying on an external power supply, realizes unrestricted use in any place, and makes the melt spinning machine a convenient and portable equipment. Therefore, the present invention breaks through the inherent thinking, makes full use of the high-temperature heat energy, low-temperature heat energy and electric energy generated in the process of methanol-water reforming hydrogen production and power generation, and combines it with the traditional melt spinning machine to realize the trigeneration of cooling, heating and electricity. The energy constant calculation can be performed according to the temperature required for each stage of melt spinning, the power of electrical equipment such as motors, and the amount of methanol required in the methanol-water reforming hydrogen production power generation system, the generated heat energy and electric energy. Through the intelligent cooling, heating and electricity trigeneration control of the melt spinning machine, the efficient use of energy can be achieved, thereby providing a new energy-saving and mobile innovative idea, which has broad industrial application prospects;

[0023] (2) Since the temperature of the high-temperature waste gas generated during the methanol-water reforming hydrogen production process is as high as 300~600℃, this part of the heat energy can fully meet the temperature required for the polymer to melt and form a melt (generally 180~280℃). On the other hand, the mixed air formed by the low-temperature air of 40~60℃ discharged from the fuel cell and the outside air just meets the low temperature required for the melt to solidify and form (about 20~35℃). In this way, the waste heat generated by the methanol-water reforming hydrogen production and power generation process itself is mainly used to heat or cool the melt, which not only improves the utilization rate of the methanol-water raw material, but also no longer relies solely on the electric heating device, air conditioning refrigeration or water cooling device of the traditional melt spinning machine for heating or cooling, thereby greatly reducing the power consumption of the entire equipment, and achieving significant energy-saving and emission-reduction effects;

[0024] (3) The electric energy output by the methanol-water reforming hydrogen production power generation system of the present invention is direct current, so the motors used in the melt spinning machine equipment can all be direct current motors, which do not require high power to start compared to alternating current motors and have no power loss;

[0025] (4) The present invention has made a major breakthrough in energy conservation and environmental protection. On the one hand, the raw material of the present invention is a mixture of methanol and water, and the raw material cost is low (the cost of 1 kg of methanol is about 2 yuan), and the discharged water and a small amount of carbon dioxide do not pollute the environment. On the other hand, from the perspective of energy consumption cost, the current cost of industrial electricity is about 1 yuan per kWh, and the heat required for 1 kWh is equivalent to 860 kcal. However, the methanol-water hydrogen production power generation system of the present invention can generate about 2 kWh of electricity for 1 kg of methanol, that is, the heat required is 2*860 kcal=1720 kcal, and the heat generated by methanol is equivalent to 5 kcal, leaving 3380 kcal of heat. In other words, in addition to the 2 kWh of electricity generated in the methanol-water hydrogen production power generation process that can be provided to the electrical equipment of the melt spinning machine, 3380 kcal of heat can also be generated. kcal of high-quality thermal energy (temperature up to 300~600℃) and low-quality thermal energy, this part of thermal energy can further compensate for the use of heat source and cold source required for melt heating and cooling. According to the trigeneration of cold, heat and electricity, the cost of generating 1 kilowatt-hour of electricity is only about 0.4 yuan, which saves more than half of the cost and energy consumption compared with the current industrial electricity cost, which is of great significance in industry and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the movable melt-spinning machine for trigeneration of cooling, heating and electricity of the present invention.

[0027] Reference numerals:

[0028] Screw extruder 1, barrel 11, screw 12, spinning box 2, spinneret 21, cooling chamber 3, collecting chamber 4, winding device 41;

[0029] Methanol water hydrogen production power generation system 5, methanol water storage container 51, delivery pump 52, reformer 53, reforming chamber 531, electric heater 532, separation chamber 533, fuel cell 54, heat exchanger 55, control device 56;

[0030] High temperature gas collecting device 6, cooling device 7, reversing valve 8;

[0031] Air induction system 9, low temperature air mixer 91, humidifier 92, air induction device 93, air duct 931, compressor 94;

[0032] The first high temperature gas circuit 10a, the second high temperature gas circuit 20a, the first refrigeration circuit 20, the refrigeration circuit 30a, the second refrigeration circuit 20b, the first heat exchanger 40, the second heat exchanger 50, the first flow control valve 60, the second flow control valve 70, the third flow control valve 80, and the valve 90. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0034] Mobile melt spinning machine with combined cooling, heating and power generation, such as Figure 1 As shown, it includes a screw extruder 1, a spinning box 2, a cooling chamber 3 and a collecting chamber 4 which are arranged in sequence, wherein: the screw extruder includes a barrel 11 and a screw 12, a spinneret 21 is arranged in the spinning box 2, and a winding device 41 is arranged in the collecting chamber 4. During operation, the polymer is heated and melted by the screw extruder 1, then enters the spinning box 2 and is extruded through the spinneret 21 to form a melt, the melt enters the cooling chamber 3 to cool and solidify, and then enters the collecting chamber 4, and is then wound and spun by the winding device 41. (This part of the working principle is the same as that of the melt spinning machine in the prior art).

[0035] The mobile melt spinning machine for combined cooling, heating and power generation of the present invention is different from the melt spinning machine of the prior art in that:

[0036] The mobile melt spinning machine with combined cooling, heating and power generation also includes a methanol-water hydrogen production power generation system 5, which includes a methanol-water storage container 51, a delivery pump 52, a reformer 53, a fuel cell 54 and a control device 56. The reformer 53 includes a reforming chamber 531, a separation chamber 533 and an electric heater 532 for heating the reforming chamber 531. The working principle of hydrogen production and power generation in the system is: a mixed raw material of methanol and water is transported to the reformer 53 through the delivery pump 52, and the electric heater 532 provides the required heat for the reformer 53, so that methanol and water are heated in the reforming chamber 531. Under the action of the catalyst, the reforming reaction is performed to produce a mixed gas mainly composed of carbon dioxide and hydrogen. The mixed gas is separated into hydrogen and high-temperature residual gas through the separation chamber 533. After the hydrogen passes through the heat exchanger 55 and exchanges heat with the low-temperature methanol water, the methanol water evaporates and gasifies and enters the reformer 53. After cooling, the high-temperature hydrogen is transported to the fuel cell 54 for generating electricity. Part of the electricity is used to power the delivery pump 52 and the electric heater 532 of the methanol water hydrogen production power generation system 5, and part of the electricity is used to power all electrical equipment of the melt spinning machine; the fuel cell 54 discharges low-temperature air during the process of generating electricity. The above-mentioned methanol water hydrogen production power generation system 5 continuously and cyclically generates high-temperature residual gas, low-temperature air and outputs electrical energy, thereby realizing the trigeneration of heat, cooling and electricity of the melt spinning machine, as follows:

[0037] (1) Power supply:

[0038] The control device 56 includes a control mainboard, a power supply device and a power output port, wherein: the control mainboard controls the operation of the methanol water hydrogen production power generation system 5, and the power supply device can be a rechargeable battery. During the startup process of the methanol water reforming hydrogen production power generation system, the rechargeable battery supplies power to itself (mainly to the electric heater 532, so as to provide the heat required for the reforming hydrogen production reaction in the reformer 53), thereby quickly starting the reformer 53 to make methanol and water reform and produce hydrogen. The power output port is used to output power to the outside. During the above-mentioned methanol water reforming hydrogen production startup process, no external power supply is required, and the system itself can be powered by its own power supply device. After the fuel cell 54 works to generate electricity, it supplies power to its own system and all electrical equipment of the melt spinning machine (such as the screw extruder 1, the power equipment of the winding device 41, etc.), thereby completely changing the power supply mode of the traditional melt spinning machine relying on an external power supply, and can be used in any place without restriction, making the melt spinning machine a convenient and portable device.

[0039] (2) Utilization of waste heat from low-temperature air:

[0040] The movable melt spinning machine also includes an air induction system 9 for cooling and solidifying the melt in the cooling chamber 3. The air induction system 9 includes a low-temperature air mixer 91, a humidifier 92 and an air induction device 93, wherein: the low-temperature air discharged by the fuel cell 54, the outside air and the humidifier 92 are respectively connected to the air inlet of the low-temperature air mixer 91 through pipelines, the air outlet of the low-temperature air mixer 91 is connected to the air inlet of the air induction device 93 through a compressor 94, the air induction device 93 is provided with a plurality of air ducts 931, and a plurality of air outlets corresponding to the air ducts 931 are distributed on one side of the cooling chamber 3 along the melt flow direction. The air induction system 9 uses the low-temperature air of 40-60°C discharged by the fuel cell 54 during the power generation process as a low-temperature heat source, and mixes it with the outside air to form a mixed air of 20-35°C and transports it to the air duct 931 of the air induction device 93, and then enters the cooling chamber 3 to cool and solidify the high-temperature melt. Since the air duct 931 and the blowing port of the cooling chamber 3 are both oriented perpendicular to the melt in the cooling chamber 3, the spinning quality can be effectively improved. The humidifier 92 is used to adjust the humidity of the mixed air in the low-temperature air mixer 91. The low-temperature air mixer 91 is provided with a temperature detection device and a humidity detection device, which are electrically connected to the control device respectively, and can intelligently control the temperature and humidity in the cooling chamber 3.

[0041] (3) Utilization of waste heat from high-temperature waste gas:

[0042] The mobile melt spinning machine is provided with a high-temperature gas circuit, which includes two first high-temperature gas circuits 10 for adjusting the temperature of different regions of the barrel 11 and a second high-temperature gas circuit 20 for adjusting the temperature in the spinning box 2. A high-temperature gas collecting device 6 is provided in the high-temperature gas collecting device 6. The high-temperature gas in the high-temperature gas collecting device 6 comes from the high-temperature residual gas separated by the separation chamber 533, and the temperature of the high-temperature residual gas is 300-600°C. The high-temperature residual gas forms a heat source with uniform and stable heat through the circulation of the high-temperature gas circuit, thereby quickly heating the barrel 11 and the spinning box 2. Since the temperature of the high-temperature residual gas reaches 300-600°C, this part of high-quality heat energy can fully meet the heating temperature required by the melt (generally 180-280°C), which not only makes full use of the waste heat generated in the process of hydrogen production and power generation by methanol water reforming, improves the utilization rate of methanol water raw materials, but also no longer relies solely on the electric heating device of the traditional melt spinning machine for heating, thereby greatly reducing the power consumption of the whole machine, and the energy saving and emission reduction effect is significant. Each high-temperature gas circuit is provided with a first flow control valve 60, and the first flow control valve 60 is electrically connected to the control device 56. The control device 56 adjusts the flow of high-temperature residual gas in the corresponding high-temperature gas circuit through the first flow control valve 60 to adjust the heating temperature of the barrel 11 and the spinning box 2.

[0043] The movable melt spinning machine is also provided with a refrigeration circuit 30 ( Figure 1 Taking the barrel 11 as an example, only the refrigeration circuit 30 for cooling the barrel 11 is drawn, and the refrigeration circuit 30 for cooling the spinning box 2 is not drawn). A cooling device 7 is provided on the refrigeration circuit 30. A third flow control valve 80 is also provided on the refrigeration circuit 30, and the third flow control valve 80 is electrically connected to the control device 56. When the barrel 11 or the spinning box 2 needs to be cooled, the cooling device 7 transports the cooling medium through the corresponding refrigeration circuit 30 to quickly cool down the barrel 11 and the spinning box 2.

[0044] The movable melt spinning machine includes two first heat exchangers 40, which are respectively arranged on the return pipes of the corresponding first high-temperature gas loops 10. The refrigeration loop 30 transfers heat to the corresponding first high-temperature gas loop 10 through the first heat exchanger 40. This is because the temperature required for heating during the polymer melting process is generally 180~280℃, and the heat of the high-temperature residual gas is as high as 300~600℃. In order to prevent the temperature of the barrel 11 and the spinning box 2 from rising too fast and exceeding the required heating temperature, the first heat exchanger 40 can be used to make the refrigeration loop 30 and the high-temperature gas loop exchange heat to adjust the temperature of the barrel 11 and the spinning box 2 respectively. Figure 1In the embodiment, a second flow control valve 70 is provided on the pipeline leading to each first heat exchanger 40, which is used to control the flow of high-temperature gas passing through the first heat exchanger 40, thereby adjusting the heat transfer between the corresponding high-temperature gas circuit and the refrigeration circuit 30. At the same time, a controllable valve 90 is provided on each refrigeration circuit 30, which is used to control the path of the cooling medium leading to the first heat exchanger 40 or the barrel 11 / spinning box 2. When the temperature of a certain high-temperature gas circuit needs to be adjusted by the cooling medium during the heating process, the path of the valve 90 leading to the first heat exchanger 40 is opened; when the heating is completed and cooling is performed, the path of the valve 90 leading to the first heat exchanger 40 is closed, and the path of the valve 90 leading to the barrel 11 / spinning box 2 is opened, and the cooling medium cools the barrel 11 / spinning box 2.

[0045] A reversing valve 8 is provided on the connecting pipeline between the separation chamber 533 and the high-temperature gas collecting device 6. When the melt spinning machine is working, the high-temperature residual gas separated by the separation chamber 533 enters the high-temperature gas collecting device 6 through the reversing valve 8, and then heats the barrel 11 and the spinning box 2 through the high-temperature gas circuit; when the melt spinning machine stops working, the high-temperature residual gas separated by the separation chamber 533 is discharged to the outside through the reversing valve 8, and the cooling device 7 transports the cooling medium through the refrigeration circuit 30 to quickly cool down the barrel 11 and the spinning box 2.

[0046] In this embodiment, the mobile melt spinning machine further includes a second heat exchanger 50, and the refrigeration circuit 30 performs heat exchange with the low-temperature air exhausted by the fuel cell 54 through the second heat exchanger 50. When the temperature of the mixed air in the low-temperature air mixer 91 is too high, the temperature of the mixed air can be adjusted by the second heat exchanger 50 to maintain it at the temperature of 20-35°C required for the melt to cool and solidify.

[0047] In this embodiment, temperature sensors are provided in the barrel 11, the spinning box 2 and the cooling chamber 3, and the temperature sensors are electrically connected to the control device 56. The control device 56 controls the first flow control valve 60, the second flow control valve 70 and the third flow control valve 80 according to the feedback signals of each temperature sensor and the temperature detection device to realize intelligent control of the temperature of the barrel 11, the spinning box 2 and the cooling chamber 3.

[0048] The above work can realize the intelligent cold, hot and electric triple control of the mobile melt spinning machine. In addition, the melt spinning machine uses the high-temperature waste gas generated in the process of hydrogen production and power generation by methanol water reforming to adjust the heating temperature of the barrel 11 and the spinning box 2. Although energy saving is achieved, it is difficult to achieve precise control by simply relying on thermal energy to adjust the temperature. For this reason, in this embodiment, the barrel 11 and the spinning box 2 are also provided with an electric heating device, which is electrically connected to the power output end, that is, the electric heating device is also powered by the electric energy output by the fuel cell 54, and no external power supply is required. Specifically, the electric heating device adopts an electric heating film, which is arranged on the inner wall of the barrel 11 and the box surface of the spinning box 2. The electric heating film is preferably an electric heating film made of silicon carbide. Since the electric heating film has the advantages of high temperature resistance, energy saving, and fast heat transfer speed, it is convenient to accurately control the temperature. For example, the temperature required for melt heating is 250°C. When working, the heat energy generated by methanol-water reforming hydrogen production process is first used to heat the barrel 11 and the spinning box 2. When the temperature of the two reaches the basic temperature of 200°C, the electric heating film is started to continue to heat the barrel 11 and the spinning box 2 to 250°C to achieve precise temperature control. Therefore, the temperature control of the barrel 11 and the spinning box 2 by the melt spinning machine of the present invention can also achieve thermoelectric control. According to the requirements of the process of the material to be processed, the temperature control method and control accuracy of the barrel 11 and the spinning box 2 can be arbitrarily selected.

[0049] Compared with the existing technology, the present invention breaks through the inherent thinking, fully utilizes the heat and electricity generated in the process of methanol-water reforming hydrogen production and power generation, and combines it with the traditional melt spinning machine, and realizes efficient use of energy through the intelligent cooling, heating and electricity triple control of the melt spinning machine. To this end, the present invention provides a new energy-saving and mobile innovative idea, which has broad prospects for industrial application.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A mobile melt spinning machine for combined cooling, heat and power supply, comprising a screw extruder, a spinning box, a cooling chamber and a collecting chamber arranged in sequence, wherein: The screw extruder comprises a barrel and a screw, a spinneret is arranged in the spinning box, and a winding device is arranged in the collecting chamber. It is characterized in that: the mobile melt spinning machine further comprises a methanol-water hydrogen production power generation system, and the methanol-water hydrogen production power generation system comprises a methanol-water storage container, a delivery pump, a reformer, a fuel cell and a control device. The reformer comprises a reforming chamber, a separation chamber and an electric heater for heating the reforming chamber. Methanol-water raw materials are transported to the reformer by the delivery pump, and a reforming hydrogen production reaction of methanol and water occurs in the reformer to produce a mixed gas mainly composed of carbon dioxide and hydrogen. This mixed gas is separated into hydrogen and high-temperature residual gas in the separation chamber. The hydrogen is transported to the fuel cell to generate electric energy. Part of the electric energy powers the delivery pump and the electric heater of the methanol-water hydrogen production power generation system, and part of the electric energy powers other electrical equipment of the melt spinning machine; low-temperature air is discharged during the process of the fuel cell generating electric energy; the control device comprises a control main board, a power supply device and a power output port. The control main board controls the operation of the methanol-water hydrogen production power generation system. The power supply device powers itself during the startup process of the methanol-water reforming hydrogen production power generation system, and the power output port is used for externally outputting power; The mobile melt spinning machine further comprises an air guiding system for cooling and solidifying the melt in the cooling chamber. The air guiding system comprises a low-temperature air mixer, a humidifier and an air guiding device. Among them: the low-temperature air discharged from the fuel cell, the external air and the humidifier are respectively communicated with the air inlet of the low-temperature air mixer through pipelines. The air outlet of the low-temperature air mixer is communicated with the air inlet of the air guiding device through a compressor. The air guiding device is provided with a plurality of air ducts, and a plurality of air blowing ports corresponding to the air ducts are distributed along the melt flow direction on one side of the cooling chamber. The orientations of the air ducts and the air blowing ports are both perpendicular to the melt in the cooling chamber; The mobile melt spinning machine is provided with a high-temperature gas circuit, and a high-temperature gas collecting device is arranged in the high-temperature gas circuit. The high-temperature gas in the high-temperature gas collecting device comes from the high-temperature residual gas separated by the separation chamber, and the temperature of the high-temperature residual gas is 300 - 600 °C; the high-temperature gas circuit comprises at least one first high-temperature gas circuit for adjusting the temperature of the barrel and a second high-temperature gas circuit for adjusting the temperature in the spinning box; Flow control valves are arranged on both the high-temperature gas circuit and the refrigeration circuit, and the flow control valves are electrically connected to the control device; Temperature sensors are arranged in the barrel, the spinning box and the cooling chamber. The temperature sensors continuously monitor the temperature data of each area and are electrically connected to the control device. The control device dynamically adjusts the flow control valves of the high-temperature gas circuit and the refrigeration circuit according to the temperature data to achieve precise temperature control of the barrel, the spinning box and the cooling chamber; The low-temperature air mixer of the induced draft system is also provided with a humidity detection device, and the humidity detection device is electrically connected to the control device, and the control device adjusts the output of the enhancer according to the humidity data.

2. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 1, Features: The movable melt spinning machine is also provided with a refrigeration circuit for cooling the barrel, and a cooling device is provided on the refrigeration circuit.

3. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 2, Features: The movable melt spinning machine includes at least one first heat exchanger, and the refrigeration circuit transfers heat to the corresponding high-temperature gas circuit through the at least one first heat exchanger.

4. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 2, Features: The movable melt spinning machine includes a second heat exchanger, and the refrigeration circuit exchanges heat with the low-temperature air exhausted from the fuel cell through the second heat exchanger.

5. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 1, Features: A reversing valve is provided on the connecting pipeline between the separation chamber and the high-temperature gas collecting device. During the rubber refining process of the melt spinning machine, the high-temperature residual gas separated by the separation chamber enters the high-temperature gas collecting device through the reversing valve; during the cooling process of the melt spinning machine, the high-temperature residual gas separated by the separation chamber is discharged to the outside through the reversing valve.

6. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 1, Features: The barrel and the spinning box are provided with an electric heating device, and the electric heating device comprises an electric heating film, and the electric heating film is provided on the inner wall of the barrel and the box surface of the spinning box.

7. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 1, Features: The power supply device is a rechargeable battery.

8. The mobile melt spinning machine for combined cooling, heating and power generation according to claim 1, Features: A heat exchanger is provided on the transport pipeline between the methanol-water storage container and the reformer, and the low-temperature methanol and water raw materials are heat-exchanged with the high-temperature hydrogen separated by the separation chamber.

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