Heating and pressurizing mechanism in one-time curing process of magnetic suspension long stator product

Abstract

The invention discloses a heating and pressurizing mechanism in the primary curing process of a magnetic suspension long stator product, and relates to the technical field of magnetic suspension long stator manufacturing, the heating and pressurizing mechanism comprises a pressurizing tank body, a tank cover, a heating device and a deflation valve, the tank cover is detachably arranged on the pressurizing tank body, when the tank cover is opened, a workpiece is put in and taken out, and when the tank cover is closed, the pressurizing tank body can be closed; the heating device is communicated with a compressed air source, the heating device is communicated with the pressurizing tank body through an air inlet pipe, and the heating device is used for heating compressed air entering the pressurizing tank body; the deflation valve is connected with the pressurizing tank body and used for exhausting air in the pressurizing tank body, and the curing quality can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic suspension long stator manufacturing, in particular to a heating and pressurizing mechanism in a primary curing process of a magnetic suspension long stator product. Background Art

[0002] The maglev rail transit technology is based on the principle of long-stator linear motors. The train is the rotor and is propelled linearly in the electromagnetic field of the long stator. The long stator includes a long stator coil, which is one of the core components of the maglev rail transit. A single long stator is made of 180 iron cores stacked, epoxy resin cast and cured. Usually, the length of the long stator is about 1 meter, and the packaging area is large. The average thickness of the epoxy resin package is required to be 1-1.5mm, and the wall thickness is relatively thin. Epoxy resin is a thermosetting material and needs to be heated and cured. The existing process is that after the product is molded, the assembled mold is transferred to a vacuum casting tank to evacuate the mold and cast the epoxy resin. After the casting is completed, the vacuum casting tank is broken. The mold filled with raw materials is moved to the curing furnace for curing and molding of the raw materials. The curing furnace currently designed only has a heating function. When pouring epoxy resin, there may be residual gas inside the mold, and the residual gas cannot be discharged outside the mold during curing, causing surface and internal defects, requiring secondary repairs, resulting in a low pass rate for products after demoulding, or even causing them to be scrapped in severe cases. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a heating and pressurizing mechanism in the primary curing process of a magnetic suspension long stator product, which can improve the curing quality.

[0004] According to the first aspect of the embodiment of the present invention, a heating and pressurizing mechanism for a magnetic levitation long stator product during a single curing process comprises: a pressurized tank body, a tank cover, a heating device, and an air release valve, wherein the tank cover is detachably arranged on the pressurized tank body, and is used to put in and take out workpieces when the tank cover is opened, and can seal the pressurized tank body when the tank cover is closed; the heating device is connected to a compressed air source, and is connected to the pressurized tank body through an air inlet pipe, and is used to heat the compressed air entering the pressurized tank body; the air release valve is connected to the pressurized tank body, and is used to discharge the air in the pressurized tank body.

[0005] A heating and pressurizing mechanism for a magnetically suspended long stator product in a single curing process according to an embodiment of the present invention has at least the following beneficial effects: compressed air is used as a carrier for heating and pressurization, and the pressure in the pressurized tank is controlled by an air release valve, thereby retaining the heating function while adding the pressurization function, effectively reducing the influence of residual gas inside the workpiece on the curing molding, and improving the product qualification rate.

[0006] According to some embodiments of the present invention, a support rod is connected to the top of the pressurized tank body, the tank cover is rotatably mounted on the support rod, and the support rod is used to drive the tank cover to move closer to and away from the pressurized tank body.

[0007] According to some embodiments of the present invention, a temperature-controlled water jacket is provided on the outside of the pressurized tank body, and the temperature-controlled water jacket is used to heat and cool the pressurized tank body.

[0008] According to some embodiments of the present invention, a flow channel is provided in the temperature control water jacket, and the flow channel is connected to a tank circulating water pump through a water jacket inlet pipe, and the tank circulating water pump is connected to an intermediate buffer water tank. The tank circulating water pump is used to drive the coolant to circulate in the intermediate buffer water tank and the flow channel, and the flow channel is connected to a heat pump unit through a water jacket outlet pipe, and the heat pump unit outputs the heated or cooled coolant to the intermediate buffer water tank through the water jacket inlet pipe.

[0009] According to some embodiments of the present invention, the heat pump unit is connected to the heat storage device through a heat pump circulation inlet pipe and a heat pump circulation outlet pipe, and a heat storage circulation water pump is provided on the heat pump circulation inlet pipe. The heat storage circulation water pump is used to drive the coolant to circulate between the heat storage device and the heat pump unit.

[0010] According to some embodiments of the present invention, the heating device includes a main heater and an electric heating wire heater. The compressed air is first heated by the main heater, then heated by the electric heating wire heater, and then enters the pressurized tank. The heating power of the main heater is greater than the heating power of the electric heating wire heater.

[0011] According to some embodiments of the present invention, the heat pump unit is connected to the auxiliary heater via an auxiliary heating inlet pipe and an auxiliary heating outlet pipe, and the auxiliary heating inlet pipe is provided with an auxiliary heating circulating water pump. The heat pump unit can circulate and heat the coolant flowing through the auxiliary heater via the auxiliary heating inlet pipe and the auxiliary heating outlet pipe, and the auxiliary heater is used to heat the compressed air and transport it to the electric heating wire heater.

[0012] According to some embodiments of the present invention, a pressure reducing pipeline is connected to the highest point of the flow channel, a pressure reducing valve is provided on the pressure reducing pipeline, the pressure reducing pipeline is connected to the intermediate buffer water tank, and the height of the intermediate buffer water tank is lower than the height of the pressurized tank body.

[0013] According to some embodiments of the present invention, a vent pipe is connected to the pressure reducing pipeline, a vent valve is provided on the vent pipe, a drain pipe is connected to the lowest point of the flow channel, the drain pipe is connected to the intermediate buffer water tank, and a drain valve is provided on the drain pipe.

[0014] According to some embodiments of the present invention, a pressure gauge is provided on the pressurized tank body, and the pressure gauge is used to measure the pressure inside the pressurized tank body.

[0015] A heating and pressurizing mechanism in a primary solidification process of a magnetic suspension long stator product according to an embodiment of the present invention has at least the following beneficial effects:

[0016] (1) Compressed air is used as a carrier for heating and pressurization, and the pressure in the pressurized tank is controlled by the air release valve. At the same time, heating and pressurization are performed for curing to improve the qualified rate of the product;

[0017] (2) Use heat pump units and heat storage devices to heat and cool pressurized tanks to reduce energy consumption;

[0018] (3) The combination of the electric heating wire heater and the main heater can save operating costs and, by adjusting the heating power of the electric heating wire heater 320, can help to accurately control the temperature of the workpiece being heated and improve the curing quality.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 A schematic diagram of a pressurized tank according to an embodiment of the present invention;

[0022] Figure 2 An overall schematic diagram of an embodiment of the present invention

[0023] Figure 3 The figure is a schematic cross-sectional view of a pressurized tank according to an embodiment of the present invention.

[0024] Figure Number:

[0025] Pressurized tank 100, pressure gauge 110;

[0026] Tank cover 200;

[0027] Heating device 300, main heater 310, electric heating wire heater 320;

[0028] Intake pipe 400;

[0029] Air release valve 500;

[0030] Support rod 600;

[0031] Temperature control water jacket 700, water jacket outlet pipe 701, flow channel 710, pressure reducing pipeline 702, pressure reducing valve 703, vent pipe 704, water jacket inlet pipe 711, tank body circulating water pump 712, intermediate buffer water tank 713, vent valve 714, drain pipe 715, drain valve 716;

[0032] Heat pump unit 800 , heat pump circulation inlet pipe 810 , heat pump circulation outlet pipe 820 , heat storage device 830 , heat storage circulation water pump 840 , auxiliary heating inlet pipe 850 , auxiliary heating outlet pipe 860 , auxiliary heater 870 , auxiliary heating circulation water pump 880 . DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 3As shown, a heating and pressurizing mechanism for a magnetic suspension long stator product in a primary curing process according to an embodiment of the present invention comprises: a pressurized tank body 100, a tank cover 200, a heating device 300, and a venting valve 500. The pressurized tank body 100 is cylindrical with one end open, and the opening of the pressurized tank body 100 can be used to take out and put in a workpiece. The workpiece is a magnetic suspension long stator, which is put into the pressurized tank body 100 after a vacuum pouring epoxy resin process. The tank cover 200 is detachably arranged at the opening of the pressurized tank body 100. When the tank cover 200 is opened, the opening of the pressurized tank body 100 is used to put in and take out the workpiece, and when the tank cover 200 is closed, the pressurized tank body 100 can be closed; the function of the tank cover 200 is to close the opening of the pressurized tank body 100. The heating device 300 is connected to a compressed air source, and the compressed air source provides compressed air to the heating device 300, and the pressure of the compressed air is at least 0.7 MPa. The heating device 300 is connected to the pressurized tank body 100 through the air inlet pipe 400. The heating device 300 is used to heat the compressed air entering the pressurized tank body 100; the compressed air is heated to 130 to 200 degrees Celsius in the heating device 300 and then enters the pressurized tank body 100 to heat the workpiece. The air release valve 500 is connected to the pressurized tank body 100 and is used to discharge the air in the pressurized tank body 100. When the air release valve 500 is closed, the compressed air entering the pressurized tank body 100 can not only heat the workpiece but also pressurize the workpiece. The air release valve 500 can use a relief valve or a one-way valve with an opening pressure of 0.25MPa to control the air pressure inside the pressurized tank body 100. Multiple air release valves 500 can be set to allow air to flow fully in the pressurized tank 100. The workpiece is heated to solidify the epoxy resin. Due to the increase in pressure, the volume of bubbles in the epoxy resin is compressed less, and the external pressure can better compensate for the shrinkage caused by the epoxy resin during curing, which is beneficial to reducing pores and cracks in the epoxy resin and improving the curing quality of the workpiece.

[0038] Reference Figures 1 to 3 As shown, it can be understood that a support rod 600 is provided on the top of the pressurized tank body 100, and the tank cover 200 is rotatably mounted on the support rod 600. The support rod 600 is used to drive the tank cover 200 to approach and move away from the pressurized tank body 100, so as to conveniently and quickly open and close the tank cover 200. The connection method between the tank cover 200 and the pressurized tank body 100 and the specific structure and installation method of the support rod 600 are all prior arts, so they are not described in detail.

[0039] Reference Figures 1 to 3As shown, it can be understood that a temperature-controlled water jacket 700 is provided on the outside of the pressurized tank body 100, and the temperature-controlled water jacket 700 can be welded on the outside of the pressurized tank body 100, or can be bolted on the outside of the pressurized tank body 100. The temperature-controlled water jacket 700 is used to heat and cool the pressurized tank body 100. The temperature-controlled water jacket 700 preheats the pressurized tank body 100 before placing the workpiece, reduces the time of heating with compressed air, improves the uniformity of the internal temperature of the pressurized tank body 100, and enables the epoxy resin in the workpiece to be evenly heated, thereby improving the curing quality. The temperature-controlled water jacket 700 can also cool the pressurized tank body 100 before taking out the workpiece, making it easier for the staff to take out the workpiece, and can also increase the cooling speed of the workpiece so that the workpiece can quickly enter the next process.

[0040] Reference Figures 1 to 3 As shown, it can be understood that a flow channel 710 is provided in the temperature control water jacket 700, and the flow channel 710 is evenly distributed in the temperature control water jacket 700. The flow channel 710 is connected to the tank body circulating water pump 712 through the water jacket inlet pipe 711, and the tank body circulating water pump 712 uses a centrifugal pump. The tank body circulating water pump 712 is connected to an intermediate buffer water tank 713, and the intermediate buffer water tank 713 plays a buffering role. The height of the tank body circulating water pump 712 is greater than the height of the intermediate buffer water tank 713, and sufficient inlet pressure is provided by gravity to ensure that the tank body circulating water pump 712 can operate normally. The tank circulating water pump 712 is used to drive the coolant to circulate in the intermediate buffer water tank 713 and the flow channel 710. The water jacket outlet pipe 701 is connected to a heat pump unit 800 for cooling and heating the coolant. The flow channel 710 is connected to the heat pump unit 800 through the water jacket outlet pipe 701. The heat pump unit 800 outputs the heated or cooled coolant to the intermediate buffer water tank 713 through the water jacket inlet pipe 711. The specific structure and installation method of the heat pump unit 800 are prior art, which have been disclosed in the Chinese invention patent with the announcement number CN100529590C, so they are not described in detail. The heat pump unit 800 has a first working mode for heating the coolant from the water jacket inlet pipe 711, and the heat pump unit 800 also has a second working mode for cooling the coolant from the water jacket inlet pipe 711. Only one heat pump unit 800 is needed to achieve both heating and cooling, which is conducive to reducing the volume of the equipment and reducing the equipment investment cost.

[0041] Reference Figures 1 to 3As shown, it can be understood that the heat pump unit 800 is connected to the heat storage device 830 through the heat pump circulation inlet pipe 810 and the heat pump circulation outlet pipe 820. The heat pump circulation inlet pipe 810 is provided with a heat storage circulation water pump 840, and the heat storage circulation water pump 840 is used to drive the coolant to circulate between the heat storage device 830 and the heat pump unit 800. In the first working mode, the heat pump unit 800 transfers the heat in the heat storage device 830 to the temperature control water jacket 700. In the second working mode, the heat pump unit 800 transfers the heat in the temperature control water jacket 700 to the heat storage device 830. The heat storage device 830 is a prior art and has been disclosed in the Chinese invention patent with the announcement number CN100410598C, so it will not be described in detail. Using the heat storage device 830 to transfer heat is conducive to saving energy consumption in the circulation process of cooling and heating the pressurized tank body 100. Effectively reduce the operating cost.

[0042] Reference Figures 1 to 3 As shown, it can be understood that the heating device 300 includes a main heater 310 and an electric heating wire heater 320. The compressed air is first heated by the main heater 310, then heated by the electric heating wire heater 320, and then enters the pressurized tank body 100. The heat source of the main heater 310 can use steam or a gas boiler. The heating power of the main heater 310 is greater than the heating power of the electric heating wire heater 320. The heating device 300 is divided into a main heater 310 and an electric heating wire heater 320 connected in series, wherein most of the heat for heating the air comes from the main heater 310. The main heater 310 uses a steam heat source or a gas boiler heat source. Compared with the method of using electric heating, it usually has the advantage of low unit energy consumption cost, but there is a lag in regulation and it is difficult to accurately control the heating temperature. The electric heating wire heater 320 has the characteristics of small thermal inertia and high regulation sensitivity, so it plays a role in regulating the temperature of the compressed air entering the pressurized tank body 100. The main heater 310 and the electric heating wire heater 320 are used together, which saves operating costs and helps to accurately control the heated temperature of the workpiece and improve the curing quality by adjusting the heating power of the electric heating wire heater 320.

[0043] Reference Figures 1 to 3As shown, it can be understood that the heat pump unit 800 is connected to the auxiliary heater 870 through the auxiliary heating inlet pipe 850 and the auxiliary heating outlet pipe 860, and the auxiliary heating inlet pipe 850 is provided with an auxiliary heating circulating water pump 880, and the auxiliary heating inlet pipe 850 and the auxiliary heating outlet pipe 860 are provided with valves to control the circulation of the coolant. The valve can be closed when the auxiliary heater 870 is not used. The heat pump unit 800 can circulate and heat the coolant flowing through the auxiliary heater 870 through the auxiliary heating inlet pipe 850 and the auxiliary heating outlet pipe 860. The auxiliary heater 870 can heat the compressed air and transport it to the electric heating wire heater 320 when the heat pump unit 800 is in the first working mode. The electric heating wire heater 320 adjusts the temperature of the compressed air and transports it to the pressurized tank 100 to heat the workpiece. At this time, the main heater 310 does not need to work or only needs to output a lower power to reduce energy consumption. The auxiliary heater 870 can cool the compressed air and deliver it to the electric heating wire heater 320 when the heat pump unit 800 is in the second working mode. The electric heating wire heater 320 no longer heats the compressed air. The cold compressed air entering the pressurized tank 100 can quickly cool the workpiece, so that it can be quickly taken out to the next process, thereby improving production efficiency.

[0044] Reference Figures 1 to 3 As shown, it can be understood that the highest point of the flow channel 710 is connected to a pressure reducing pipeline 702, a pressure reducing valve 703 is arranged on the pressure reducing pipeline 702, and the pressure reducing pipeline 702 is connected to the intermediate buffer water tank 713, and the height of the intermediate buffer water tank 713 is lower than the height of the pressurized tank 100. At the initial startup, due to density reasons, the air in the flow channel 710 may accumulate at the highest point. At this time, the air inside the flow channel 710 can be discharged by opening the pressure reducing valve 703 and through the pressure reducing pipeline 702. In the case of higher safety requirements, the pressure reducing valve 703 can also be designed as a relief valve with an opening pressure of 1MPa to relieve pressure in the event of a fault to prevent excessive pressure in the flow channel 710.

[0045] Reference Figures 1 to 3 As shown, it can be understood that the pressure reducing pipeline 702 is connected with a vent pipe 704, and the vent pipe 704 is connected to the outside atmosphere. A vent valve 714 is provided on the vent pipe 704, and a drain pipe 715 is connected to the lowest point of the flow channel 710, and the drain pipe 715 is connected to the intermediate buffer water tank 713, and a drain valve 716 is provided on the drain pipe 715. When the flow channel 710 is inspected or cleaned, the coolant in the flow channel 710 needs to be discharged. At this time, the vent valve 714 and the drain valve 716 can be opened to discharge the coolant in the flow channel 710 into the intermediate buffer water tank 713 by gravity.

[0046] Reference Figures 1 to 3As shown, it can be understood that the pressurized tank body 100 is provided with a pressure gauge 110, and the pressurized tank body 100 is provided with a safety valve with an opening pressure of 0.3 MPa to prevent the internal pressure of the pressurized tank body 100 from being too high. The pressure gauge 110 is used to measure the pressure inside the pressurized tank body 100.

[0047] Usage steps: put the workpiece into the pressurized tank body 100, close the tank cover 200, start the tank body circulating water pump 712, the tank body circulating water pump 712 drives the coolant to circulate between the temperature control water jacket 700 and the heat pump unit 800, start the heat storage circulating water pump 840, the tank body circulating water pump 712 drives the coolant to circulate between the heat storage device 830 and the heat pump unit 800, the heat pump unit 800 switches to the first working mode, transfers the heat in the heat storage device 830 to the temperature control water jacket 700, raises the temperature of the pressurized tank body 100 to the preset value, and then opens the corresponding valve to make the heat pump unit 800 The coolant with a higher temperature output by the group 800 is transported to the auxiliary heater 870 through the auxiliary heating circulating water pump 880 to heat the compressed air. The main heater 310 heats the compressed air. The compressed air heated by the main heater 310 and the compressed air heated by the auxiliary heater 870 are mixed and enter the electric heating wire heater 320. The electric heating wire heater 320 heats the compressed air to a preset value and then transports it to the pressurized tank body 100 to heat the workpiece. The air release valve 500 opens to release pressure when the air pressure in the pressurized tank body 100 reaches 0.25MPa to keep the air pressure in the pressurized tank body 100 constant. After the temperature in the heat storage device 830 drops to the specified value, the heat pump unit 800, the tank body circulating water pump 712, the heat storage circulating water pump 840, and the auxiliary heating circulating water pump 880 are turned off, and the compressed air is mainly heated by the main heater 310. After 2 hours, the electric heating wire heater 320 and the main heater 310 stop heating the compressed air, and start the heat pump unit 800, the tank circulating water pump 712, the heat storage circulating water pump 840, and the auxiliary heating circulating water pump 880. The heat pump unit 800 switches to the second working mode, cools the pressurized tank 100 and the compressed air at the same time, and transfers the heat to the heat storage device 830. After the temperature in the pressurized tank 100 drops to room temperature, the air release valve 500 is opened to reduce the pressure in the pressurized tank 100 to 0, and the tank cover 200 is opened to take out the workpiece.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A heating and pressurizing mechanism for a magnetic suspension long stator product during a primary curing process, characterized in that: include: Pressurized tank (100); A tank cover (200) is detachably disposed on the pressurized tank body (100); the tank cover (200) is used to place and remove workpieces when opened, and can seal the pressurized tank body (100) when closed; a heating device (300), the heating device (300) being in communication with a compressed air source, the heating device (300) being in communication with the pressurized tank body (100) via an air intake pipe (400), the heating device (300) being used to heat the compressed air entering the pressurized tank body (100); The air release valve (500) is connected to the pressurized tank body (100) and is used to discharge the air in the pressurized tank body (100).

2. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 1 is characterized in that: The top of the pressurized tank body (100) is connected to a support rod (600), and the tank cover (200) is rotatably mounted on the support rod (600). The support rod (600) is used to drive the tank cover (200) to move closer to and away from the pressurized tank body (100).

3. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 1 is characterized in that: A temperature control water jacket (700) is provided on the outside of the pressurized tank body (100), and the temperature control water jacket (700) is used to heat and cool the pressurized tank body (100).

4. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 3 is characterized in that: A flow channel (710) is provided in the temperature control water jacket (700). The flow channel (710) is connected to a tank body circulating water pump (712) via a water jacket inlet pipe (711). The tank body circulating water pump (712) is connected to an intermediate buffer water tank (713). The tank body circulating water pump (712) is used to drive the coolant to circulate in the intermediate buffer water tank (713) and the flow channel (710). The flow channel (710) is connected to a heat pump unit (800) via a water jacket outlet pipe (701). The heat pump unit (800) outputs the heated or cooled coolant to the intermediate buffer water tank (713) via the water jacket inlet pipe (711).

5. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 4 is characterized in that: The heat pump unit (800) is connected to the heat storage device (830) via a heat pump circulation inlet pipe (810) and a heat pump circulation outlet pipe (820); a heat storage circulation water pump (840) is provided on the heat pump circulation inlet pipe (810); the heat storage circulation water pump (840) is used to drive the coolant to circulate between the heat storage device (830) and the heat pump unit (800).

6. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 5 is characterized in that: The heating device (300) comprises a main heater (310) and an electric heating wire heater (320); the compressed air is first heated by the main heater (310), then heated by the electric heating wire heater (320), and then enters the pressurized tank (100); the heating power of the main heater (310) is greater than the heating power of the electric heating wire heater (320).

7. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 6 is characterized in that: The heat pump unit (800) is connected to the auxiliary heater (870) via an auxiliary heating inlet pipe (850) and an auxiliary heating outlet pipe (860); an auxiliary heating circulating water pump (880) is provided on the auxiliary heating inlet pipe (850); the heat pump unit (800) can circulate and heat the coolant flowing through the auxiliary heater (870) via the auxiliary heating inlet pipe (850) and the auxiliary heating outlet pipe (860); the auxiliary heater (870) is used to heat the compressed air and transport it to the electric heating wire heater (320).

8. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 4 is characterized in that: The highest point of the flow channel (710) is connected to a pressure reducing pipeline (702), a pressure reducing valve (703) is provided on the pressure reducing pipeline (702), the pressure reducing pipeline (702) is connected to the intermediate buffer water tank (713), and the height of the intermediate buffer water tank (713) is lower than the height of the pressurized tank body (100).

9. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 8 is characterized in that: The pressure reducing pipeline (702) is connected to a drain pipe (704), and a drain valve (714) is provided on the drain pipe (704). The lowest point of the flow channel (710) is connected to a drain pipe (715), and the drain pipe (715) is connected to the intermediate buffer water tank (713). A drain valve (716) is provided on the drain pipe (715).

10. The heating and pressurizing mechanism in the primary curing process of the magnetic suspension long stator product according to claim 1 is characterized in that: The pressurized tank body (100) is provided with a pressure gauge (110), and the pressure gauge (110) is used to measure the pressure inside the pressurized tank body (100).

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