Airplane drainage ground air source device with self-adaptive multi-point heating function

Abstract

The invention discloses a ground air source device with a self-adaptive multi-point heating function for airplane drainage, and relates to the technical field of ground air source devices for airplanes, the ground air source device comprises an air storage tank and a compressor, and the compressor is mounted on the air storage tank; an air outlet of the compressor communicates with an air inlet of the air storage tank through a connecting pipe to be filled with compressed air. A heater I for warming a machine body and a cooling fan for cooling the machine body are mounted on the machine body of the compressor so as to regulate and control the temperature of the machine body of the compressor; an air inlet temperature increasing mechanism; an air inlet of the air inlet warming mechanism communicates with external atmosphere, and an air outlet of the air inlet warming mechanism communicates with an air inlet of the compressor to regulate and control the air inlet temperature of the compressor; the air inlet temperature increasing mechanism is electrically connected with the first heater so as to regulate and control the heating power of the first heater according to the air inlet temperature. The working temperature of the air source device can be adjusted through self-adaptive multi-point heating according to the air inlet temperature, so that it is guaranteed that the ground air source device can normally work in the low-temperature environment, and the service life of the ground air source device is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of ground air source devices for aircraft, and in particular to a ground air source device for aircraft drainage with an adaptive multi-point heating function. Background Art

[0002] When the temperature is below zero degrees, water will freeze, and when water freezes it will expand and easily damage the pipes, so when the aircraft is grounded, the water tank needs to be drained.

[0003] When filling and draining the water tank, in order to increase the drainage speed, high-pressure gas is introduced into the aircraft water tank through a high-pressure gas source, thereby increasing the fluid pressure in the water tank and accelerating the drainage process.

[0004] During drainage, when the external ambient temperature is relatively low, the working ambient temperature of the ground air source device will also be low, causing the operating temperature of the compressor of the ground air source device to be low, which can easily cause abnormal wear, and the pipeline will become brittle due to cold, and is also prone to damage and rupture.

[0005] To this end, how to provide a ground air source device for aircraft drainage with an adaptive multi-point heating function, which can perform adaptive multi-point heating to adjust the working temperature of the air source device according to the intake air temperature, so as to ensure that the ground air source device can work normally in a low temperature environment and improve the service life of the ground air source device is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention proposes a ground air source device for aircraft drainage with an adaptive multi-point heating function, aiming to solve the technical problems of poor temperature control effect of traditional air source devices and unstable operation of the device when started at low temperatures.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] The present invention provides a ground air source device for aircraft drainage with an adaptive multi-point heating function, comprising:

[0009] gas tank,

[0010] A compressor, the compressor is mounted on the air storage tank; the air outlet of the compressor is connected to the air inlet of the air storage tank through a connecting pipe to be filled with compressed air; a heater for increasing the temperature of the compressor and a cooling fan for cooling the compressor are installed on the compressor body to adjust the compressor body temperature;

[0011] Intake air heating mechanism; the air inlet of the intake air heating mechanism is connected to the external atmosphere, and the air outlet thereof is connected to the air inlet of the compressor to regulate the intake air temperature of the compressor; the intake air heating mechanism is electrically connected to the heater 1 to regulate the heating power of the heater 1 according to the intake air temperature.

[0012] When the ground air source device for aircraft drainage with adaptive multi-point heating function of the present invention is used, when the external ambient temperature is low, the fuselage of the compressor can be heated and heated by heater 1, and the air intake heating mechanism can be used to heat the air intake of the compressor to heat the compression chamber of the compressor by heat transfer. The air intake heating mechanism can adjust the heating power of heater 1 and the air intake temperature of the compressor according to the air intake temperature; the multi-point heating and temperature adjustment function of the inner cavity and fuselage of the ground air source device is realized. Among them, the heat dissipation fan can be started to dissipate heat when the temperature of the compressor fuselage is too high.

[0013] As a further improvement of the above technical solution, it also includes a pressure gauge installed on the gas storage tank, the pressure gauge is connected to the connecting pipe through a pipeline to detect the air pressure; a heater 2 for heating is installed on the pressure gauge;

[0014] The intake air temperature increasing mechanism is electrically connected to the second heater so as to adjust the heating power of the second heater according to the intake air temperature.

[0015] The beneficial effects of the above technical solution are: the pressure gauge is used to detect the air pressure in the gas storage tank; the high-temperature air heated by the air intake heating mechanism is transported to the pressure gauge detection cavity through the connecting pipe, thereby performing heat transfer heating on the pressure gauge; the second heater can heat the outer casing of the pressure gauge; thereby stabilizing the working temperature of the pressure gauge and improving its measurement accuracy.

[0016] As a further improvement of the above technical solution, the air intake temperature increasing mechanism includes a shell and a connector installed on one side of the shell;

[0017] The shell is provided with an air intake cavity, an adjustment induction cavity, a heating cavity, an air intake pipe group and a plurality of heating pipes; a heater three is installed in the heating cavity, and a heater four is installed in each of the plurality of heating pipes;

[0018] The air inlet cavity is connected to the external atmosphere to inhale external air; the air inlet cavity is connected to the heating cavity through the air inlet pipe group to transport air, and the air inlet pipe group is arranged in the regulating sensing cavity to exchange heat with the regulating sensing cavity; the heating cavity is connected to the inner cavity of the connector through a plurality of the heating pipes to transport gas; the air outlet of the connector is connected to the air inlet of the compressor;

[0019] A temperature detection control mechanism is provided in the regulating induction cavity, and the temperature detection control mechanism is electrically connected to the heater one, the heater two, the heater three and the heater four to adjust the heating power.

[0020] The beneficial effects of the above technical scheme are: after the compressor is started, the outside air is inhaled through the air intake cavity, the inhaled air is transported to the heating cavity through the air intake pipe group, and the inhaled air passes through the pipe wall of the air intake pipe group and exchanges heat with the regulating sensing cavity; the temperature detection and control mechanism adjusts the heating power of heater one, heater two, heater three and heater four by detecting and adjusting the air temperature in the sensing cavity; heater three installed in the heating cavity can preliminarily heat the inhaled air flowing through the heating cavity; heater four installed in multiple heating pipes further heats the inhaled air; multiple heating pipes can improve the heating efficiency of the inhaled air; the connector is used to connect multiple heating pipes with the air inlet of the compressor.

[0021] As a further improvement of the above technical solution, the shell is cylindrical, and a partition plate is fixed vertically and axially inside the shell to separate and form the heating chamber on one side corresponding to the partition plate; a partition cylinder is coaxially arranged in the shell on the other side corresponding to the partition plate, one end of the partition cylinder is sealed and fixed to the partition plate, and the other end is sealed and fixed to the inner end wall of the shell, so as to separate and form the annular air inlet chamber in the shell corresponding to the outer peripheral side of the partition cylinder, so as to form the regulating induction chamber inside the partition cylinder;

[0022] One end of each of the plurality of heating pipes passes through the wall of the heating cavity away from the partition plate and communicates with the heating cavity, and the other end is connected to and communicates with the inner cavity of the connector; an air inlet hole 1 is provided on the end wall of the shell corresponding to the air inlet cavity;

[0023] The air intake pipe group includes a main air intake pipe and an air intake branch pipe; the main air intake pipe is coaxially arranged inside the partition cylinder, and one end of the main air intake pipe passes through the partition plate and communicates with the heating chamber, and the other end of the main air intake pipe is sealed and fixed to the corresponding inner end wall of the shell; one end of the air intake branch pipe is connected to the main air intake pipe, and the other end passes through the partition cylinder and communicates with the air intake chamber;

[0024] The temperature detection control mechanism is arranged inside the partition cylinder and corresponds to the outer peripheral side of the main intake pipe.

[0025] The beneficial effects of the above technical solution are: an intake chamber, an adjustment sensing chamber, a heating chamber, an intake heat exchange channel and multiple heating pipes are constructed inside the cylindrical shell through a partition plate, a partition cylinder, a main intake pipe and an intake branch pipe, and a heating pipe connected to one end of the shell; making the structure of the intake warming mechanism more compact and the layout more reasonable.

[0026] As a further improvement of the above technical solution, the temperature detection and control mechanism includes a piston plate, an annular resistor assembly, an elastic member and an electrode contact; the piston plate is sealed and slidably sleeved on the main intake pipe, and its outer peripheral wall is sealed and slidably connected with the inner peripheral wall of the separation cylinder; the intake branch pipe is located on one side of the piston plate; the separation cylinder is filled with a heat expansion medium corresponding to the side of the piston plate, and the heat expansion medium can drive the piston plate to move when it absorbs heat from the main intake pipe and the intake branch pipe and expands; the elastic member is arranged on the other side of the piston plate to push the piston plate to reset when the heat expansion medium cools down;

[0027] The annular resistor assembly corresponds to the other side of the piston plate and is fixed on the main intake pipe; the electrode contact is fixedly installed on the other side of the piston plate through a bracket and slides against the outer peripheral wall of the annular resistor assembly; the annular resistor assembly and the electrode contact are electrically connected to the power supply circuits of the heater one, the heater two, the heater three and the heater four, so as to adjust the power supply voltage or current of the power supply circuit when the electrode contact slides along the length direction of the annular resistor assembly, thereby adjusting the heating power.

[0028] The beneficial effect of the above technical solution is: when the external ambient temperature is high and the compressor inhales hot air from the outside, the heat expansion medium exchanges heat with the wall of the main intake pipe and the intake branch pipe, the heat expansion medium absorbs heat and expands, the air pressure increases, and then pushes the piston plate to overcome the elastic force of the elastic part and translate, so as to change the contact position of the electrode contact on the annular resistor assembly, thereby adjusting the power supply voltage or current of the power supply circuit, reducing the heating power of heater one, heater two, heater three and heater four, the electrode contact can move to the extreme position and disengage from the annular resistor assembly to cut off the power supply circuit, and then turn off heater one, heater two, heater three and heater four. When the outside environment temperature is low and the compressor inhales cold air from the outside, the heat dissipation temperature of the thermal expansion medium decreases, it contracts due to the cold, and the air pressure decreases. The piston plate can move in the opposite direction under the elastic force of the elastic part to change the contact position of the electrode contact on the annular resistor assembly, thereby adjusting the power supply voltage or current of the power supply circuit and increasing the heating power of heater one, heater two, heater three and heater four; the outside temperature determines the expansion degree of the thermal expansion medium, thereby the heating power and thus achieves adaptive adjustment of the compressor intake temperature, the fuselage temperature and the working temperature of the pressure gauge.

[0029] As a further improvement of the above technical solution, the thermal expansion medium is a mixed gas of nitrogen dioxide and nitrogen tetroxide.

[0030] The beneficial effect of the above technical solution is: by setting the thermal expansion medium as a mixture of nitrogen dioxide and nitrogen tetroxide, and utilizing the characteristic of chemical equilibrium shift when the temperature changes, the thermal expansion medium can be made more sensitive to temperature changes, thereby making the heating control more sensitive and improving the temperature control accuracy.

[0031] As a further improvement of the above technical solution, a conical guide column is fixed to the inner end wall of the shell corresponding to the air outlet of the main air inlet pipe; the multiple heating pipes are evenly distributed along the circumference of the conical guide column; the heater three is in a conical cylindrical shape, and the cover is buckled on the outer peripheral side of the conical guide column; a guide channel connecting the air outlet of the main air inlet pipe and the air inlet of the multiple heating pipes is defined between the inner peripheral wall of the heater three and the outer peripheral wall of the conical guide column.

[0032] The beneficial effects of the above technical solution are: the conical guide column can play a role in evenly distributing the gas discharged from the outlet of the main intake pipe to the air inlets of multiple heating pipes; the frustum-shaped cylindrical heater three covered on the outer peripheral side of the conical guide column can further guide the intake air flow to flow into multiple heating pipes; the intake air flow in the guide channel can fully contact the inner wall of the heater three to improve the heating efficiency; at the same time, it is beneficial to construct a negative pressure zone corresponding to the outer peripheral side of the heater three in the heating chamber.

[0033] As a further improvement of the above technical solution, the air intake temperature increasing mechanism further includes an air intake interception mechanism;

[0034] The air intake interception mechanism comprises a rotating frame, a cylinder body, an induction piston, a transmission rod assembly and a return spring;

[0035] The rotating frame is rotatably sleeved on the shell; the cylinder body is installed on the peripheral wall of the shell; both ends of the cylinder body are open, and one end thereof is connected to the heating chamber, and the other end thereof is connected to the external atmosphere; one end of the transmission rod assembly is connected to the rotating frame, and the other end of the transmission rod assembly is connected to the induction piston; the induction piston is sealed and slidably connected to the cylinder body to move with the change of air pressure in the heating chamber, thereby driving the rotating frame to rotate; the reset spring is connected to the induction piston to drive the induction piston to reset;

[0036] One end of the rotating frame is provided with a shutoff plate which can be gradually rotated to block the air inlet hole so as to adjust the size of the air inlet opening.

[0037] The beneficial effects of the above technical scheme are as follows: when the compressor is working, negative pressure can be formed in the heating chamber, and a gas pressure difference can be formed on both sides of the sensing piston; under the action of the internal and external air pressure difference, the sensing piston overcomes the elastic resistance of the return spring and moves along the peripheral wall of the cylinder body, so as to drive the transmission rod assembly to move and then drive the rotating frame to rotate, and when the rotating frame rotates, the shutoff plate can be driven to open and close the air inlet hole 1 and adjust the air inlet opening size of the air inlet hole 1; when the working power of the compressor is relatively small, the air pressure difference on both sides of the sensing piston is also relatively small, and at this time, the opening of the air inlet hole 1 opened by the shutoff plate is relatively small; as the working power of the compressor increases, the opening of the air inlet hole 1 opened by the shutoff plate gradually increases; when the compressor stops, the negative pressure in the heating chamber disappears, and the return spring pushes the sensing piston to reset, and at this time, the shutoff plate completely blocks the air inlet hole 1, thereby preventing external impurities or insects from entering the shell to cause equipment failure, thereby increasing the safety and reliability of equipment operation.

[0038] As a further improvement of the above technical solution, the shutoff plate is rotated and sealed against one end of the shell; the shutoff plate is provided with an air inlet hole 2 which can overlap and communicate with the air inlet hole 1 when rotating.

[0039] The beneficial effects of the above technical solution are: when the shutoff plate rotates, the overlapping area of ​​the air inlet hole 2 and the air inlet hole 1 determines the size of the air inlet opening of the air inlet cavity; when the air inlet hole 2 and the air inlet hole 1 are completely staggered, the inner wall of the shutoff plate is sealed at one of the air inlet holes to achieve the effect of closing the air inlet channel.

[0040] As a further improvement of the above technical solution, the cylinder body penetrates the peripheral wall of the shell and is arranged along the radial direction of the shell;

[0041] The transmission rod assembly includes a piston rod and a limit rod; one end of the piston rod is vertically fixed on the sensing piston, and the other end of the piston rod extends from the other end of the cylinder body to the outside of the shell; one end of the limit rod is fixed to the other end of the piston rod; the other end surface of the rotating frame is provided with an inclined slide groove with an inclined angle to the radial direction of the shell; the other end of the limit rod is slidably connected in the inclined slide groove, so as to slide along the length direction of the inclined slide groove under the telescopic drive of the piston rod, thereby driving the rotating frame to rotate.

[0042] The beneficial effects of the above technical solution are: the induction piston moves under the action of the internal and external air pressure difference, thereby pushing the piston rod to extend and retract, and then driving the limit rod to slide radially along the shell. The limit rod sliding radially along the shell in the inclined slide groove can apply torque to the rotating frame to achieve the effect of driving the rotating frame to rotate; the sliding position of the limit rod in the inclined slide groove limits the rotation angle of the rotating frame, thereby realizing adaptive and precise adjustment of the intake opening size.

[0043] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a ground air source device for aircraft drainage with an adaptive multi-point heating function, which has the following advantages and beneficial effects:

[0044] 1. The present invention installs a heater 1 and a heat dissipation fan on the compressor body, and installs a heater 2 on the pressure gauge, which can be used in conjunction with a temperature sensor and a host computer, thereby realizing negative feedback control of temperature; that is, on the one hand, it can ensure that the compressor and the pressure gauge are quickly heated up in a low-temperature environment, and on the other hand, the compressor can reliably dissipate heat in a high-temperature environment, thereby ensuring the working stability of the ground gas source device and extending its service life.

[0045] 2. The present invention provides an air intake heating mechanism, which can preheat the gas sucked into the compressor when the temperature is low, so that the heated high-temperature gas can be used to transfer heat to the compression chamber of the compressor, the gas storage tank, and the pressure gauge, thereby increasing the heating speed of the ground gas source device and further improving the working reliability and service life.

[0046] 3. The present invention sets an adjustable sensing chamber and a thermal expansion medium, uses the thermal expansion medium to sense the temperature of the inhaled gas, and thus senses the ambient temperature, and then uses the expansion force of the thermal expansion medium as a driving force to drive the electrode contact to slide. The circuit structure composed of the electrode contact and the annular resistor assembly can realize adaptive adjustment of the heating power of heater one, heater two, heater three and heater four according to the intake air temperature; and can automatically disconnect heater one, heater two, heater three and heater four after the intake air temperature reaches a threshold value; there is no need to set a sensor to detect the external atmospheric temperature, nor is there a need to set a host computer to control the intake air temperature, and the integrated effect of temperature sensing, start and stop and power control can be achieved.

[0047] 4. The present invention sets the thermal expansion medium as a mixture of nitrogen dioxide and nitrogen tetroxide, and utilizes the chemical equilibrium shift characteristics of the thermal expansion medium when the temperature changes, so that the thermal expansion medium can react more sensitively to temperature changes, thereby improving the sensitivity and accuracy of heating control.

[0048] 5. The present invention arranges a shutoff plate at one end of the rotating frame. On the one hand, the air intake opening size of the air intake hole 1 can be controlled by utilizing the overlapping area between the air intake hole 2 of the shutoff plate and the air intake hole 1 of the shell. On the other hand, the air intake cavity can be closed when the device is shut down, thereby preventing external impurities or insects from entering the air intake cavity and causing damage to the device, thereby increasing the safety and reliability of the device operation.

[0049] 6. The present invention controls the overlapping area of ​​the air inlet hole 2 of the shutoff plate and the air inlet hole 1 of the shell, and utilizes the characteristic that the negative pressure in the heating chamber is related to the starting power of the compressor by setting components such as a limit rod, an inclined slide groove, a cylinder body, and an induction piston. On the one hand, the opening size of the air inlet hole 1 of the air inlet chamber can be adaptively adjusted as the starting power of the compressor changes. On the other hand, it also realizes the fully automated control of closing the air inlet hole 1 of the air inlet chamber when the machine is shut down. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0051] Figure 1 A schematic diagram of the overall structure of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0052] Figure 2 A schematic diagram of the connection state between the air intake and exhaust integrated cover of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0053] Figure 3 A schematic diagram of the overall structure of an air intake heating mechanism of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0054] Figure 4 A schematic diagram of the internal structure of an air intake heating mechanism of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0055] Figure 5 A schematic diagram of the structure of a temperature detection control mechanism of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0056] Figure 6 A schematic diagram of the installation state of a rotating frame of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0057] Figure 7 A schematic diagram of the partial structure of an air intake interception mechanism of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0058] Figure 8 A schematic diagram of the connection state between the temperature detection control mechanism and the power supply circuit of a ground air source device for aircraft drainage with an adaptive multi-point heating function according to the present invention;

[0059] In the figure: 1. gas storage tank; 2. compressor; 21. connecting pipe; 22. cooling fan; 3. air intake heating mechanism; 31. shell; 311. air intake chamber; 3111. air intake hole 1; 312. regulating induction chamber; 313. heating chamber; 314. air intake pipe group; 3141. main air intake pipe; 3142. air intake branch pipe; 315. heating pipe; 316. partition plate; 317. partition cylinder; 32. connector; 33. conical guide column; 34. heater 3; 341. vent hole; 35. heater 4; 36. temperature detection control mechanism; 361. piston Plate; 362, annular resistor assembly; 3621, annular resistor; 363, elastic member; 364, electrode contact; 3641, bracket; 37, air intake cutoff mechanism; 371, rotating frame; 3711, cutoff plate; 3711A, air intake hole 2; 3712, inclined slide; 372, cylinder body; 373, induction piston; 374, transmission rod assembly; 3741, piston rod; 3742, limit rod; 375, reset spring; 4, pressure gauge; 5, mounting frame; 6, air intake and exhaust integrated cover; 7, multi-way pipe; 8, power supply circuit; 81, power supply; 82, wire. DETAILED DESCRIPTION

[0060] 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position 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 cannot be understood as a limitation on the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] like Figures 1 to 8 As shown, a ground air source device for aircraft drainage with an adaptive multi-point heating function comprises:

[0065] Gas tank 1,

[0066] Compressor 2, compressor 2 is fixedly mounted on the top of the air storage tank 1 through a mounting frame 5; the air outlet of compressor 2 is connected to the air inlet of the air storage tank 1 through a connecting pipe 21 to be filled with compressed air; a heater 1 for increasing the temperature of the compressor 2 is installed on the body of the compressor 2, and cooling fans 22 for cooling the body are installed at both ends of the compressor 2 to adjust the body temperature of the compressor 2; an air intake and exhaust integrated cover 6 is fixed on the top of the compressor 2 by bolts, and the air intake and exhaust integrated cover 6 contains two channels respectively connected to the air intake and exhaust ports of the compressor 2;

[0067] Intake air heating mechanism 3; the air inlet of the intake air heating mechanism 3 is connected to the external atmosphere, and the air outlet of the intake air heating mechanism 3 is connected through a multi-way pipe 7 and connected to the channel on the intake and exhaust integrated cover 6 connected to the air inlet of the compressor 2, so as to regulate the intake air temperature of the compressor 2; the intake air heating mechanism 3 is electrically connected to the heater 1, so as to regulate the heating power of the heater 1 according to the intake air temperature.

[0068] When the aircraft drainage ground air source device with adaptive multi-point heating function of this embodiment is used, when the external ambient temperature is low, the fuselage of the compressor 2 can be heated by the heater 1, and the intake air of the compressor 2 can be heated by the intake air heating mechanism 3 to heat the compression chamber of the compressor 2 by heat transfer. The intake air heating mechanism 3 can adjust the heating power of the heater 1 and the intake air temperature of the compressor 2 according to the intake air temperature; the multi-point heating and temperature adjustment function of the ground air source device is realized. Among them, the heat dissipation fan 22 can be started to dissipate heat when the temperature of the compressor 2 fuselage is too high.

[0069] In some embodiments, it also includes a pressure gauge 4 installed on the gas storage tank 1, and the pressure gauge 4 is connected to the connecting pipe 21 through a pipeline to detect the air pressure; a heater 2 for heating is installed on the pressure gauge 4;

[0070] The intake air temperature increasing mechanism 3 is electrically connected to the heater 2 to adjust the heating power of the heater 2 according to the intake air temperature.

[0071] The pressure gauge 4 is used to detect the air pressure in the gas storage tank 1; the high-temperature air heated by the air intake heating mechanism 3 is transported to the detection cavity of the pressure gauge 4 through the connecting pipe 21, thereby performing heat transfer heating on the pressure gauge 4; the heater 2 can heat the outer shell of the pressure gauge 4; thereby stabilizing the working temperature of the pressure gauge 4 and improving its measurement accuracy.

[0072] Specifically, the temperature sensor can be used to monitor the external ambient temperature. When the ambient temperature is lower than the set low temperature threshold, the controller controls the heater 1 and the heater 2 to start heating. When the ambient temperature reaches the set high temperature threshold, the controller controls the heater 1 and the heater 2 to be turned off, and the cooling fan 22 is controlled to start cooling. Thus, negative feedback control of the temperature is realized. On the one hand, it can ensure that the compressor 2 and the pressure gauge 4 are quickly heated up in a low temperature environment, and on the other hand, it can also reliably dissipate heat in a high temperature environment, thereby ensuring the working stability of the gas source device and extending its service life.

[0073] Specifically, the outer side of the connecting pipe 21 is wrapped with a flame retardant layer and a thermal insulation layer; the airflow in the connecting pipe 21 is the inhaled air heated by the air intake heating mechanism 3, which can prevent the connecting pipe 21 from becoming brittle and breaking due to cold during use; the thermal insulation layer can further insulate the connecting pipe 21 from cold and fracture.

[0074] In some embodiments, the air intake temperature increasing mechanism 3 includes a housing 31 and a connector 32 installed on one side of the housing 31;

[0075] The housing 31 is provided with an air intake chamber 311, an adjustment sensing chamber 312, a heating chamber 313, an air intake pipe group 314 and a plurality of heating pipes 315; a heater 3 34 is installed in the heating chamber 313, and a heater 4 35 is installed in each of the plurality of heating pipes 315;

[0076] The air inlet chamber 311 is connected to the external atmosphere to inhale external air; the air inlet chamber 311 is connected to the heating chamber 313 through the air inlet pipe group 314 to transport air, and the air inlet pipe group 314 is arranged in the regulating sensing chamber 312 to exchange heat with the regulating sensing chamber 312; the heating chamber 313 is connected to the inner cavity of the connector 32 through a plurality of heating pipes 315 to transport gas; the air outlet of the connector 32 is connected to the air inlet of the compressor 2 through the air intake channel of the air inlet and exhaust integrated cover 6;

[0077] A temperature detection control mechanism 36 is provided in the regulating induction chamber 312, and the temperature detection control mechanism 36 is electrically connected to the heater 1, the heater 2, the heater 34 and the heater 4 35 to adjust the heating power.

[0078] After the compressor 2 is started, the negative pressure is transmitted to the air intake chamber 311, and the outside air is sucked in through the air intake chamber 311. The sucked air is transported to the heating chamber 313 through the air intake pipe group 314, and the sucked air passes through the pipe wall of the air intake pipe group 314 and exchanges heat with the regulating sensing chamber 312; the temperature detection control mechanism 36 adjusts the heating power of heater one, heater two, heater three 34 and heater four 35 by detecting and adjusting the air temperature in the sensing chamber 312; heater three 34 installed in the heating chamber 313 can preliminarily heat the sucked air flowing through the heating chamber 313; heater four 35 installed in multiple heating pipes 315 further heats the sucked air; multiple heating pipes 315 can improve the heating efficiency of the sucked air; the connector 32 is used to connect multiple heating pipes 315 with the intake channel of the intake and exhaust integrated cover 6, and then guide the hot air to the air intake of the compressor 2. Thus, the temperature of the gas sucked by the compressor 2 and the gas discharged into the gas storage tank 1 can be increased, and the high-temperature gas is used to heat the compression chamber of the compressor 2, the gas storage tank 1, and the pressure gauge 4 through heat transfer. Thus, the ground gas source device can increase the heating rate, further increasing the reliability and service life of the work.

[0079] Specifically, there is no limitation on the specific types of heater 1 and heater 2, and components such as resistance wire, heating film and hot air heater can be selected. Preferably, heater 1 and heater 2 are resistance wires, which are convenient for arrangement to improve heating uniformity. Preferably, heater 3 34 is an electric heating plate; heater 4 35 is a heating resistance wire.

[0080] In some embodiments, the shell 31 is cylindrical, and a partition plate 316 is fixed vertically and axially inside the shell 31, so as to separate and form a heating chamber 313 on one side of the partition plate 316; a partition cylinder 317 is coaxially arranged on the other side of the shell 31 corresponding to the partition plate 316, and one end of the partition cylinder 317 is sealed and fixed to the partition plate 316, and the other end is sealed and fixed to the inner end wall of the shell 31, so as to separate and form an annular air inlet chamber 311 on the outer peripheral side of the partition cylinder 317 in the shell 31, so as to form an adjustment sensing chamber 312 inside the partition cylinder 317;

[0081] One end of the plurality of heating pipes 315 penetrates the wall of the heating chamber 313 away from the partition plate 316 and communicates with the heating chamber 313, and the other end is connected to and communicates with the inner cavity of the connector 32; an air inlet hole 3111 is opened on the end wall of the shell 31 corresponding to the air inlet chamber 311; an air inlet hole 3111 is opened on the end wall of the shell 31 corresponding to the air inlet chamber 311;

[0082] The air intake pipe group 314 includes a main air intake pipe 3141 and an air intake branch pipe 3142; the main air intake pipe 3141 is coaxially arranged inside the partition cylinder 317, and one end thereof passes through the partition plate 316 and communicates with the heating chamber 313, and the other end thereof is sealed and fixed to the inner end wall of the corresponding shell 31; one end of the air intake branch pipe 3142 is connected to the main air intake pipe 3141, and the other end passes through the partition cylinder 317 and communicates with the air intake chamber 311;

[0083] The temperature detection control mechanism 36 is arranged inside the partition cylinder 317 and corresponds to the outer peripheral side of the main intake pipe 3141.

[0084] An air intake chamber 311, an adjustment sensing chamber 312, a heating chamber 313, an air intake heat exchange channel and a plurality of heating pipes 315 are constructed inside the cylindrical shell 31 by means of a partition plate 316, a partition cylinder 317, a main air intake pipe 3141, an air intake branch pipe 3142 and a heating pipe 315 connected to one end of the shell 31; this makes the structure of the air intake heating mechanism 3 more compact and the layout more reasonable.

[0085] In some embodiments, the temperature detection control mechanism 36 includes a piston plate 361, an annular resistor assembly 362, an elastic member 363 and an electrode contact 364; the piston plate 361 is sealed and slidably sleeved on the main intake pipe 3141, and its outer peripheral wall is sealed and slidably connected with the inner peripheral wall of the partition cylinder 317; the intake branch pipe 3142 is located on one side of the piston plate 361; the partition cylinder 317 is filled with a heat expansion medium corresponding to the side of the piston plate 361, and the heat expansion medium can drive the piston plate 361 to move when the main intake pipe 3141 and the intake branch pipe 3142 absorb heat and expand; the elastic member 363 is arranged on the other side of the piston plate 361 to push the piston plate 361 to reset when the heat expansion medium cools down;

[0086] The annular resistor assembly 362 corresponds to the other side of the piston plate 361 and is fixed on the main intake pipe 3141; the electrode contact 364 is fixedly installed on the other side of the piston plate 361 through the bracket 3641 and slides against the outer peripheral wall of the annular resistor assembly 362; the annular resistor assembly 362 and the electrode contact 364 are both electrically connected to the power supply circuit 8 of heater one, heater two, heater three 34 and heater four 35, so as to adjust the power supply voltage or current of the power supply circuit 8 when the electrode contact 364 slides along the length direction of the annular resistor assembly 362, thereby adjusting the heating power.

[0087] Specifically, the elastic member 363 is a spring, one end of which is connected to the piston plate 361 , and the other end of which is connected to the partition plate 316 .

[0088] When the external ambient temperature is high and the compressor inhales hot air from the outside, the heat expansion medium exchanges heat with the wall of the intake branch pipe 3142 through the main intake pipe 3141. The heat expansion medium absorbs heat and its temperature rises, and it expands due to heat, and the air pressure increases, thereby pushing the piston plate 361 to overcome the elastic force of the elastic member 363 and translate to change the contact position of the electrode contact 364 on the annular resistor assembly 362, thereby adjusting the power supply voltage or current of the power supply circuit 8 and reducing the heating power of heater one, heater two, heater three 34 and heater four 35. The electrode contact 364 can be moved to the extreme position and disengaged from the annular resistor assembly 362 to cut off the power supply circuit 8, thereby turning off heater one, heater two, heater three 34 and heater four 35. When the external ambient temperature is low and the compressor inhales cold air from the outside, the heat dissipation temperature of the thermal expansion medium decreases, it contracts due to the cold, and the air pressure decreases. The piston plate 361 can move in the opposite direction under the elastic force of the elastic member 363 to change the contact position of the electrode contact 364 on the annular resistor assembly 362, thereby adjusting the power supply voltage or current of the power supply circuit 8 and increasing the heating power of heater one, heater two, heater three 34 and heater four 35; the external temperature determines the expansion degree of the thermal expansion medium, thereby the heating power and thus achieves adaptive adjustment of the intake temperature of the compressor 2, the body temperature and the working temperature of the pressure gauge 4.

[0089] In some embodiments, the thermal expansion medium is a mixed gas of nitrogen dioxide and nitrogen tetroxide.

[0090] By setting the thermal expansion medium to a mixture of nitrogen dioxide and nitrogen tetroxide and utilizing the characteristic of chemical equilibrium shifting when the temperature changes, the thermal expansion medium can be made more sensitive to temperature changes, thereby making heating control more sensitive and improving temperature control accuracy.

[0091] Specifically, the annular resistor assembly 362 includes a plurality of annular resistors 3621, which are coaxially arranged in sequence to form a hollow cylindrical shape. When the temperature of the inhaled air is low, the temperature of the corresponding heat expansion medium is also low. On the one hand, the heat expansion medium contracts due to the cold, and on the other hand, the temperature of nitrogen dioxide and nitrogen tetroxide decreases, and the chemical equilibrium moves toward the direction of generating nitrogen tetroxide. As a result, the two factors combine to reduce the gas volume of the heat expansion medium in the regulating induction chamber 312 and reduce the air pressure, thereby causing the piston plate 361 to move, and the piston plate 361 drives the electrode contact 364 to move ( Figure 8The double-headed arrow in the figure indicates the sliding direction of the electrode contact 364), so that the number of annular resistors 3621 connected to the circuit is reduced, so that the partial pressure of heater 1, heater 2, heater 34 and heater 4 35 is increased, the heat generation power is increased, and the heat generation efficiency is increased. When the temperature of the inhaled air is high, the heat generation power is reduced, and when the temperature of the inhaled air is higher than the set threshold, the electrode contact 364 moves to the far left, that is, the electrode contact 364 is not in contact with the annular resistor 3621, thereby disconnecting the heater 1, heater 2, heater 34 and heater 4 35; at the same time, the cooling fan 22 can be started to dissipate heat from the body of the compressor 2.

[0092] In some embodiments, a conical guide column 33 is fixed to the inner end wall of the shell 31 corresponding to the air outlet of the main air inlet pipe 3141; multiple heating pipes 315 are evenly distributed along the circumference of the conical guide column 33; the heater three 34 is in a conical cylindrical shape, and is buckled on the outer peripheral side of the conical guide column 33; the inner peripheral wall of the heater three 34 and the outer peripheral wall of the conical guide column 33 define a guide channel 341 connecting the air outlet of the main air inlet pipe 3141 and the air inlet of the multiple heating pipes 315.

[0093] The conical guide column 33 can play the role of evenly distributing the gas discharged from the outlet of the main air inlet pipe 3141 to the air inlets of multiple heating pipes 315; the conical cylindrical heater three 34 covered on the outer peripheral side of the conical guide column 33 can further guide the intake air flow to flow into the multiple heating pipes 315; the intake air flow in the guide channel 341 can fully contact the inner wall of the heater three 34 to improve the heating efficiency; at the same time, it is beneficial to construct a negative pressure zone corresponding to the outer peripheral side of the heater three 34 in the heating chamber 313.

[0094] Specifically, a vent hole 341 connected to the negative pressure zone on the outer peripheral side of the heater three 34 is opened on the plate surface of the heater three 34; the flow path of the air flow in the heating chamber 313 is changed to improve the heating efficiency of the air flow in the heating chamber 313; the vent hole 341 connected to the negative pressure zone is more conducive to forming a negative pressure in the heating chamber 313 corresponding to the outer peripheral side of the heater three 34.

[0095] In some embodiments, the intake air temperature increasing mechanism 3 further includes an intake air interception mechanism 37;

[0096] The air intake interception mechanism 37 includes a rotating frame 371, a cylinder body 372, a sensing piston 373, a transmission rod assembly 374 and a return spring 375;

[0097] The rotating frame 371 is coaxially arranged with the shell 31, and the rotating frame 371 is rotatably sleeved on the shell 31; the cylinder body 372 is installed on the peripheral wall of the shell 31; both ends of the cylinder body 372 are open, and one end thereof is connected to the heating chamber 313, and the other end thereof is connected to the external atmosphere; one end of the transmission rod assembly 374 is connected to the rotating frame 371, and the other end of the transmission rod assembly 374 is connected to the sensing piston 373; the sensing piston 373 is sealed and slidably connected in the cylinder body 372, so as to move with the change of the air pressure in the heating chamber 313, thereby driving the rotating frame 371 to rotate; the reset spring 375 is connected to the sensing piston 373, so as to drive the sensing piston 373 to reset;

[0098] One end of the rotating frame 371 is provided with a shutoff plate 3711 which can be gradually rotated to block the air inlet hole 1 3111 to adjust the size of the air inlet opening.

[0099] When the compressor 2 is working, negative pressure can be formed in the heating chamber 313, and a gas pressure difference can be formed on both sides of the sensing piston 373; under the action of the internal and external pressure difference, the sensing piston 373 overcomes the elastic resistance of the return spring 375, and moves along the peripheral wall of the cylinder body 372 toward the center of the heating chamber 313, so as to drive the transmission rod assembly 374 to move and then drive the rotating frame 371 to rotate. When the rotating frame 371 rotates, it can drive the intercepting plate 3711 to open and close the air inlet hole 3111 and adjust the air inlet opening size of the air inlet hole 3111; when the working power of the compressor 2 is small, the negative pressure formed in the heating chamber 15 is small, and the pressure difference on both sides of the sensing piston 373 is also small. At this time, The opening of the air inlet hole 3111 opened by the shutoff plate 3711 is relatively small; as the working power of the compressor 2 increases, the negative pressure formed in the heating chamber 15 gradually increases, the displacement of the sensing piston 373 increases, and the opening of the air inlet hole 3111 opened by the shutoff plate 3711 gradually increases; when the compressor 2 stops, the negative pressure in the heating chamber 313 disappears, and the reset spring 375 pushes the sensing piston 373 to reset away from the center of the heating chamber 313. At this time, the shutoff plate 3711 completely blocks the air inlet hole 3111, thereby preventing external impurities or insects from entering the shell 31 and causing equipment failure, thereby increasing the safety and reliability of equipment operation.

[0100] In some embodiments, the shutoff plate 3711 is rotated and sealed to one end of the shell 31 ; the shutoff plate 3711 is provided with an air inlet hole 2 3711A which can overlap and communicate with the air inlet hole 1 3111 when rotating.

[0101] When the shutoff plate 3711 rotates, the overlapping area of ​​the second air inlet hole 3711A and the first air inlet hole 3111 determines the air inlet opening size of the air inlet cavity 311; when the second air inlet hole 3711A and the first air inlet hole 3111 are completely offset, the inner wall of the shutoff plate 3711 is sealed at the first air inlet hole 3111 to achieve the effect of closing the air inlet channel.

[0102] In some embodiments, the cylinder 372 penetrates the peripheral wall of the housing 31 and is arranged radially along the housing 31;

[0103] The transmission rod assembly 374 includes a piston rod 3741 and a limit rod 3742; one end of the piston rod 3741 is vertically fixed on the sensing piston 373, and the other end of the piston rod 3741 extends from the other end of the cylinder body 372 to the outside of the shell 31; one end of the limit rod 3742 is fixed to the other end of the piston rod 3741; the other end surface of the rotating frame 371 is provided with an inclined groove 3712 with an inclined angle to the radial direction of the shell 31; the other end of the limit rod 3742 is slidably connected in the inclined groove 3712, so as to slide along the length direction of the inclined groove 3712 under the telescopic drive of the piston rod 3741, thereby driving the rotating frame 371 to rotate.

[0104] Specifically, the return spring 375 is a compression spring, one end of which is connected to the sensing piston 373 , and the other end of which is connected to an end of the cylinder body 372 close to the center of the heating chamber 313 .

[0105] The sensing piston 373 moves under the action of the internal and external air pressure difference, thereby pushing the piston rod 3741 to extend and retract, and then driving the limit rod 3742 to slide radially along the shell 31. The limit rod 3742 sliding radially along the shell 31 in the inclined slide groove 3712 can apply torque to the rotating frame 371 to achieve the effect of driving the rotating frame 371 to rotate; the sliding position of the limit rod 3742 in the inclined slide groove 3712 limits the rotation angle of the rotating frame 371, thereby realizing adaptive and precise adjustment of the intake opening size.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0107] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that include: Gas tank (1), A compressor (2), the compressor (2) being mounted on the air storage tank (1); an air outlet of the compressor (2) being connected to an air inlet of the air storage tank (1) via a connecting pipe (21) to be filled with compressed air; A heater for increasing the temperature of the compressor (2) and a cooling fan (22) for cooling the compressor (2) are installed on the compressor (2) to adjust the compressor (2) temperature. An air intake heating mechanism (3); the air intake of the air intake heating mechanism (3) is connected to the external atmosphere, and the air outlet of the air intake of the compressor (2) is connected to the air intake of the compressor (2) so as to regulate the air intake temperature of the compressor (2); the air intake heating mechanism (3) is electrically connected to the heater 1 so as to regulate the heating power of the heater 1 according to the air intake temperature.

2. According to claim 1, a ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that It also includes a pressure gauge (4) installed on the gas storage tank (1), the pressure gauge (4) being connected to the connecting pipe (21) through a pipeline to detect the air pressure; a heater 2 for increasing the temperature is installed on the pressure gauge (4); The intake air temperature increasing mechanism (3) is electrically connected to the second heater so as to adjust the heating power of the second heater according to the intake air temperature.

3. According to claim 2, a ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that The air intake temperature increasing mechanism (3) comprises a shell (31) and a connector (32) installed on one side of the shell (31); The shell (31) is provided with an air intake chamber (311), an adjustment sensing chamber (312), a heating chamber (313), an air intake pipe group (314) and a plurality of heating pipes (315); a third heater (34) is installed in the heating chamber (313), and a fourth heater (35) is installed in each of the plurality of heating pipes (315); The air intake chamber (311) is connected to the external atmosphere to inhale external air; the air intake chamber (311) is connected to the heating chamber (313) through the air intake pipe group (314) to transport air; the air intake pipe group (314) is arranged in the regulating sensing chamber (312) to exchange heat with the regulating sensing chamber (312); the heating chamber (313) is connected to the inner cavity of the connector (32) through the plurality of heating pipes (315) to transport gas; the air outlet of the connector (32) is connected to the air inlet of the compressor (2); A temperature detection control mechanism (36) is provided in the regulating induction cavity (312), and the temperature detection control mechanism (36) is electrically connected to the heater one, the heater two, the heater three (34) and the heater four (35) to adjust the heating power.

4. According to claim 3, a ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that The shell (31) is cylindrical, and a partition plate (316) is fixed vertically inside the shell (31) to form the heating chamber (313) on one side corresponding to the partition plate (316); a partition cylinder (317) is coaxially arranged on the other side of the shell (31) corresponding to the partition plate (316); one end of the partition cylinder (317) is sealed and fixed to the partition plate (316), and the other end is sealed and fixed to the inner end wall of the shell (31) to form the annular air inlet chamber (311) on the outer peripheral side of the partition cylinder (317) in the shell (31), so as to form the regulating sensing chamber (312) inside the partition cylinder (317); One end of each of the plurality of heating pipes (315) passes through the wall of the heating chamber (313) away from the partition plate (316) and is connected to the heating chamber (313), and the other end is connected to and is connected to the inner cavity of the connector (32); an air inlet hole (3111) is provided on the end wall of the shell (31) corresponding to the air inlet chamber (311); The air intake pipe group (314) comprises a main air intake pipe (3141) and an air intake branch pipe (3142); the main air intake pipe (3141) is coaxially arranged inside the partition cylinder (317), and one end thereof passes through the partition plate (316) and is connected to the heating chamber (313), and the other end thereof is sealed and fixed to the inner end wall of the corresponding shell (31); one end of the air intake branch pipe (3142) is connected to the main air intake pipe (3141), and the other end thereof passes through the partition cylinder (317) and is connected to the air intake chamber (311); The temperature detection control mechanism (36) is arranged inside the partition cylinder (317) and corresponds to the outer peripheral side of the main intake pipe (3141).

5. According to claim 4, a ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that The temperature detection and control mechanism (36) comprises a piston plate (361), an annular resistor assembly (362), an elastic member (363) and an electrode contact (364); the piston plate (361) is sealed and slidably sleeved on the main intake pipe (3141), and its outer peripheral wall is sealed and slidably connected to the inner peripheral wall of the separation cylinder (317); the intake branch pipe (3142) is located on one side of the piston plate (361); the separation cylinder (317) is filled with a heat expansion medium corresponding to the side of the piston plate (361), and the heat expansion medium can drive the piston plate (361) to move when it absorbs heat from the main intake pipe (3141) and the intake branch pipe (3142) and expands; the elastic member (363) is arranged on the other side of the piston plate (361) to push the piston plate (361) to return to its original position when the heat expansion medium cools down; The annular resistor assembly (362) corresponds to the other side of the piston plate (361) and is sleeved on the main intake pipe (3141); the electrode contact (364) is fixedly installed on the other side of the piston plate (361) through a bracket and slides against the outer peripheral wall of the annular resistor assembly (362); the annular resistor assembly (362) and the electrode contact (364) are both electrically connected to the power supply circuits of the heater one, the heater two, the heater three (34) and the heater four (35), so as to adjust the power supply voltage or current of the power supply circuit when the electrode contact (364) slides along the length direction of the annular resistor assembly (362), thereby adjusting the heating power.

6. A ground air source device for aircraft drainage with adaptive multi-point heating function according to claim 5, It is characterized in that The thermal expansion medium is a mixed gas of nitrogen dioxide and nitrogen tetroxide.

7. According to claim 5, a ground air source device for aircraft drainage with adaptive multi-point heating function, It is characterized in that A conical guide column (33) is fixed to the inner end wall of the shell (31) corresponding to the air outlet of the main air inlet pipe (3141); the plurality of heating pipes (315) are evenly distributed along the circumference of the conical guide column (33); the heater three (34) is in the shape of a cone-shaped cylinder, and is buckled on the outer peripheral side of the conical guide column (33); a guide channel (341) connecting the air outlet of the main air inlet pipe (3141) and the air inlet of the plurality of heating pipes (315) is defined between the inner peripheral wall of the heater three (34) and the outer peripheral wall of the conical guide column (33).

8. A ground air source device for aircraft drainage with adaptive multi-point heating function according to claim 7, It is characterized in that The air intake temperature increasing mechanism (3) further comprises an air intake interception mechanism (37); The air intake interception mechanism (37) comprises a rotating frame (371), a cylinder body (372), an induction piston (373), a transmission rod assembly (374) and a return spring (375); The rotating frame (371) is rotatably sleeved on the shell (31); the cylinder body (372) is mounted on the peripheral wall of the shell (31); both ends of the cylinder body (372) are open, and one end thereof is connected to the heating chamber (313), and the other end thereof is connected to the external atmosphere; one end of the transmission rod assembly (374) is connected to the rotating frame (371), and the other end of the transmission rod assembly (374) is connected to the sensing piston (373); the sensing piston (373) is sealed and slidably connected to the cylinder body (372) so as to move with the change of air pressure in the heating chamber (313), thereby driving the rotating frame (371) to rotate; the reset spring (375) is connected to the sensing piston (373) so as to drive the sensing piston (373) to reset; One end of the rotating frame (371) is provided with a shutoff plate (3711) which can be gradually rotated to block the air inlet hole 1 (3111) to adjust the size of the air inlet opening.

9. A ground air source device for aircraft drainage with adaptive multi-point heating function according to claim 8, It is characterized in that The intercepting plate (3711) rotates and is sealed against one end of the shell (31); the intercepting plate (3711) is provided with an air inlet hole 2 (3711A) which can overlap and communicate with the air inlet hole 1 (3111) when rotating.

10. A ground air source device for aircraft drainage with adaptive multi-point heating function according to claim 8, It is characterized in that The cylinder (372) penetrates the peripheral wall of the housing (31) and is arranged along the radial direction of the housing (31); The transmission rod assembly (374) includes a piston rod (3741) and a limiting rod (3742); one end of the piston rod (3741) is vertically fixed on the sensing piston (373), and the other end of the piston rod (3741) extends from the other end of the cylinder body (372) to the outside of the shell (31); one end of the limiting rod (3742) is fixed to the other end of the piston rod (3741); the other end surface of the rotating frame (371) is provided with an inclined groove (3712) having an inclined angle with the radial direction of the shell (31); the other end of the limiting rod (3742) is slidably connected in the inclined groove (3712) to slide along the length direction of the inclined groove (3712) under the telescopic drive of the piston rod (3741), thereby driving the rotating frame (371) to rotate.

Images