阅读说明：本技术 一种暖风机 (Warm air blower ) 是由 邱安良 任小勇 田伟 张天彪 田伟国 于 2021-07-15 设计创作，主要内容包括：本发明涉及一种暖风机。本发明包括壳体,壳体两端分别设置有送风管和回风管,壳体内设置有燃烧器、燃烧换热器、送风机和供油系统,燃烧换热器与燃烧器连接,送风机接燃烧换热器,供油系统接燃烧器,壳体上设置有与燃烧换热器连通的烟筒。本发明具有可移动,热效率高的优点。(The invention relates to a warm air blower. The invention comprises a shell, wherein an air supply pipe and an air return pipe are respectively arranged at two ends of the shell, a burner, a combustion heat exchanger, an air feeder and an oil supply system are arranged in the shell, the combustion heat exchanger is connected with the burner, the air feeder is connected with the combustion heat exchanger, the oil supply system is connected with the burner, and a chimney communicated with the combustion heat exchanger is arranged on the shell. The invention has the advantages of mobility and high thermal efficiency.)

1. A fan heater, its characterized in that: the fan heater comprises a shell, wherein an air supply pipe and an air return pipe are respectively arranged at two ends of the shell, a combustor, a combustion heat exchanger, an air feeder and an oil supply system are arranged in the shell, the combustion heat exchanger is connected with the combustor, the air feeder is connected with the combustion heat exchanger, the oil supply system is connected with the combustor, and a chimney communicated with the combustion heat exchanger is arranged on the shell.

2. The fan heater according to claim 1, wherein: the oil supply system comprises a filter, an oil suction pipe, an oil drum, an oil inlet pipe, an oil return pipe and a fine filter element, wherein the oil drum is connected with a burner sequentially through the oil suction pipe, the filter, the fine filter element and the oil inlet pipe, and the burner is connected with the oil drum through the oil return pipe.

3. The fan heater according to claim 2, wherein: the combustor comprises a motor, a fan, an oil pump electromagnetic oil valve, a connecting oil pipe, a photosensitive eye, an ignition electrode and an oil nozzle; the motor, the fan and the oil pump are coaxially arranged; the oil pump is connected with an oil pump electromagnetic oil valve, the oil pump is connected with an oil nozzle through a connecting oil pipe, the ignition electrode is arranged near the oil nozzle, the photoelectric eye is connected with the ignition electrode, and the oil inlet pipe and the oil return pipe are respectively connected with the oil pump.

4. The fan heater according to claim 3, wherein: the combustion heat exchanger is a complex body consisting of a combustion chamber and a heat exchanger, the combustion chamber is arranged in the heat exchanger, a flange and a flame observation hole are arranged at the front end of the combustion chamber, the combustion chamber is connected with the heat exchanger through the flange, a semicircular long groove is punched on the outer wall of the heat exchanger, an outer cylinder smoke outlet is arranged on the heat exchanger, and the outer cylinder smoke outlet is connected with a chimney.

5. The fan heater according to claim 4, wherein: the warm air blower further comprises an air supply temperature sensor, and the air supply temperature sensor is arranged at the front end of the shell.

6. The fan heater according to claim 5, wherein: the fan heater still includes control system, control system includes control box and room temperature controller, room temperature controller is connected with the control box, the control box is connected with sensitization electric eye, ignition electrode, oil pump electromagnetic oil valve, forced draught blower and temperature sensor respectively.

7. The fan heater according to claim 6, wherein: the control system further comprises a preheater for electrically heating the air feeder and a photoelectric tube arranged on the combustor, and the control box is connected with the preheater and the photoelectric tube respectively.

8. The fan heater according to any one of claims 1 to 7, wherein: the shell comprises a front upper shell, a rear upper shell and a lower shell, wherein the front upper shell and the rear upper shell are arranged on the lower shell.

9. The fan heater according to claim 8, wherein: the fan heater also comprises support legs, and the support legs are welded on the bottom plate of the lower shell.

Technical Field

The invention relates to the field of heating, in particular to a warm air blower.

Background

The 20KW warm-air machine is a camping heating equipment which heats air and supplies hot air to warm by burning light diesel oil or kerosene, and is mainly used for warming when a command organ, a field hospital, a machine communication department, a repair department and other departments use camping tents or other temporary houses, and can also be used in fixed barracks. The equipment can be used for heating, ventilation and air exchange.

The equipment that adopts the heating in the market now mainly adopts electric energy conversion heat energy, and inner structure warms up with the electrical heating silk, consumes electric energy conversion heat energy inefficiency down, and warm braw air current performance is poor, and air drying mainly installs in fixed place, and is unsuitable to field work place, uses the heating when using camping tent or other temporary housing like departments such as commander, field hospital, mechanical key communication, repair.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides the fan heater which can realize accurate temperature control, has high fuel oil combustion efficiency, no frequent starting noise, energy conservation, environmental protection and reliable equipment operation.

The technical solution of the invention is as follows: the invention relates to a warm air blower, which is characterized in that: the fan heater comprises a shell, wherein an air supply pipe and an air return pipe are respectively arranged at two ends of the shell, a combustor, a combustion heat exchanger, an air feeder and an oil supply system are arranged in the shell, the combustion heat exchanger is connected with the combustor, the air feeder is connected with the combustion heat exchanger, the oil supply system is connected with the combustor, and a chimney communicated with the combustion heat exchanger is arranged on the shell.

Further, the oil supply system comprises a filter, an oil suction pipe, an oil drum, an oil inlet pipe, an oil return pipe and a fine filter element, the oil drum is connected with the combustor sequentially through the oil suction pipe, the filter, the fine filter element and the oil inlet pipe, and the combustor is connected with the oil drum through the oil return pipe.

Further, the combustor comprises a motor, a fan, an oil pump electromagnetic oil valve, a connecting oil pipe, a photosensitive eye, an ignition electrode and an oil nozzle; the motor, the fan and the oil pump are coaxially arranged; the oil pump is connected with an oil pump electromagnetic oil valve, the oil pump is connected with an oil nozzle through a connecting oil pipe, an ignition electrode is arranged near the oil nozzle, a photoelectric eye is connected with the ignition electrode, and an oil inlet pipe and an oil return pipe are respectively connected with the oil pump.

Furthermore, the combustion heat exchanger is a complex body consisting of a combustion chamber and a heat exchanger, the combustion chamber is arranged in the heat exchanger, a flange and a flame observation hole are arranged at the front end of the combustion chamber, the combustion chamber is connected with the heat exchanger through the flange, a semicircular long groove is punched on the outer wall of the heat exchanger, an outer cylinder smoke outlet is arranged on the heat exchanger, and the outer cylinder smoke outlet is connected with a chimney.

Furthermore, the warm air blower also comprises an air supply temperature sensor which is arranged at the front end of the shell.

Furthermore, the fan heater still includes control system, and control system includes control box and room temperature controller, and room temperature controller is connected with the control box, and the control box is connected with sensitization electric eye, ignition electrode, oil pump electromagnetic oil valve, forced draught blower and temperature sensor respectively.

Further, the control system further comprises a preheater for electrically heating the air feeder and a photoelectric tube arranged on the combustor, and the control box is respectively connected with the preheater and the photoelectric tube. The photoelectric tube is used for observing the flame state of the combustion chamber.

Further, the casing includes preceding casing, back upper casing, lower casing, preceding casing and back upper casing set up on the casing down.

Furthermore, the fan heater still includes the stabilizer blade, and the stabilizer blade welding is on the lower casing bottom plate.

According to the warm air blower provided by the invention, the oil is atomized and combusted at high pressure in the combustion chamber by the combustor, smoke is discharged from the chimney after passing through the heat exchanger, cold air sent by the air blower to the outside exchanges heat with the combustion heat exchanger, and hot air is discharged from the air outlet in the front of the warm air blower. And the fan heater is automatically controlled by the control system in the running process. The invention can be safely operated even under severe weather conditions. The machine is simple and convenient to operate, and is provided with vulnerable parts and common tools for maintenance. 2 ~ 4 people can lift up and do the short distance and remove, also can utilize other transport means to transport.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the oil supply system of the present invention;

FIG. 3 is a schematic view of the burner configuration of the present invention;

FIG. 4 is a schematic view of the combustion heat exchanger of the present invention;

FIG. 5 is a schematic diagram of the control system of the present invention;

FIG. 6 is a schematic view of a control box of the present invention;

fig. 7 is an overall wiring diagram of the present invention.

The reference numerals are explained below:

1. an oil supply system; 2. a combustor chamber door; 3. a burner; 4. a control system; 5. blast pipe 6, front upper shell; 7. a chimney; 8. a rear upper housing; 9. a return air duct; 10. a blower; 11. a combustion heat exchanger; 12. a lower housing; 13. a support leg;

31. a reset button; 32. a program controller; 33. a nozzle tip; 34. an ignition electrode; 35. connecting an oil pipe; 36. A damper; 37. an oil pump electromagnetic oil valve; 38. an oil pump; 39. a linkage shaft; 310. displaying the position of the air door; 311. a fan; 312. a damper adjusting bolt; 313. a photosensitive eye; 314. a motor;

11. a filter; 12. an oil suction pipe; 13. an oil drum; 14. an oil inlet pipe; 15. an oil return pipe; 16. a fine filter element;

111. a burner attachment flange; 112. a flame viewing aperture; 113. a combustion chamber; 114. a heat exchanger; 115. A smoke outlet; 116. a semicircular long groove;

41. a main cable; 42. a room temperature controller; 43. a control box; 44. a first supply air temperature sensor; 45. A second supply air temperature sensor; 46. a photoelectric tube; 47. a preheater;

431. an electric hair drier socket; 432. a room temperature controller socket; 433. an external power socket; 434. a timing display screen; 435. operating buttons and display lamps thereof; 436. a preheater and a photocell socket; 437. a supply air temperature sensor socket; 438. a fan and burner socket; 439. an air switch.

Detailed Description

The general aspects of the invention will be described in further detail with reference to the following figures and specific examples:

referring to fig. 1, the structure of the embodiment of the present invention includes a housing, two ends of the housing are respectively provided with an air return pipe 9 and an air supply pipe 5, the housing is internally provided with a combustion heat exchanger 11, a burner 3, an air blower 10 and an oil supply system 1, the combustion heat exchanger 11 is connected with the burner 3, the air blower 10 is connected with the combustion heat exchanger 11, the oil supply system 1 is connected with the burner 3, and the housing is provided with a chimney 7 communicated with the combustion heat exchanger 11. A control system 4 is arranged outside the shell; a burner chamber door 2 is arranged at the front lower part of the shell.

In the embodiment, the shell consists of a front upper shell 6, a rear upper shell 8 and a lower shell 12, the front upper shell 6 and the lower shell 12 are connected by four self-tapping screws, and the rear upper shell 8 and the lower shell 12 are connected by rubber handles. The front upper shell 6 is provided with an air supply pipe 5, and the lower shell 12 is provided with an air return opening 9, a combustor chamber door 2 and a support leg 13.

After the rear upper case 8 is removed, the burner heat exchanger 11 and the blower 10 can be detached and maintained. The control box, the burner 3 and the oil supply system 1 can be assembled and disassembled and maintained by opening the burner chamber door 2. Cables, room temperature controllers, tools, spare parts, instructions and the like are stored on the fan chamber cover plate below the rear upper shell 8 and also serve as a tool box.

The chimney 7 is arranged on the front upper shell 6 and communicated with the combustion heat exchanger 11, and the chimney 7 has double functions of smoke exhaust and noise elimination. The high-temperature flue gas is discharged from the chimney 7 after heat exchange by the combustion heat exchanger 11. The noise reduction means in the chimney 7 reduces combustion noise.

The blower 10 adopts a one-way low-noise centrifugal fan with an outer rotor, and is arranged at the rear part in the lower shell 12, and the starting capacitor is fixed on the volute of the blower 10. The air supply volume is divided into three grades, namely high, medium and low, which are respectively as follows: 1480m3/h, 1280m3/h and 990m 3/h.

The number of the air pipes is two, generally 4 meters are air supply pipes 5, and 5 meters are return air pipes 9. The air pipe is composed of an inner air pipe and an outer air pipe, the inner air pipe is made of a spring with the diameter of 1.6 mm as a framework, an aluminum foil tape as an inner wall pipe and a fiber felt as a heat insulation layer, and the inner air pipe and the outer air pipe are bonded by glue. The outer wind pipe adopts 2 multiplied by 2 camouflage silver-coated waterproof oxford. An air space of 15mm is arranged between the inner air pipe and the outer air pipe, and the inner air pipe is insulated by self-filled hot air.

The feet 13 are welded to the bottom plate of the lower housing 12 and serve to stably support the fan heater on the ground while also serving as a ground.

Referring to fig. 2, the structure of the oil supply system 1 according to the embodiment of the present invention includes: the fuel tank comprises a filter 11, a fuel suction pipe 12, a fuel tank 13, a fuel inlet pipe 14, a fuel return pipe 15 and a fine filter element 16, wherein the fuel tank 13 is connected with a combustor 3 through the fuel suction pipe 12, the filter 11, the fine filter element 16 and the fuel inlet pipe 14 in sequence, and the combustor 3 is connected with the fuel tank 13 through the fuel return pipe 15. Wherein the content of the first and second substances,

the oil suction pipe 12 is provided with an oil barrel cover, so that the oil suction pipe 12 is conveniently fixed on the oil barrel 13, and the depth of the oil suction pipe inserted into the oil barrel 13 can be properly adjusted. The filter 11 may further filter the fuel and the fine filter element 16 may separate water from the oil. The fuel oil is filtered by a filter 11 and then is finely filtered by a fine filter element 16, and the filtering precision of the fine filter element is 300 meshes.

Referring to fig. 3, the structure of the burner 3 embodiment of the present invention may be implemented with an existing burner, such as an OL108 fuel-fired burner, comprising: the device comprises a reset button 31, a program controller 32, an oil nozzle 33, an ignition electrode 34, a connecting oil pipe 35, a damper baffle 36, an oil pump electromagnetic oil valve 37, an oil pump 38, a linkage shaft 39, a damper position display 310, a fan 311, a damper adjusting bolt 312, a photoelectric eye 313 and a motor 314. Wherein:

1) the motor 314 is coaxially installed with the fan 311 and the oil pump 38, the fan 311 is connected with the oil pump 38 through the linkage shaft 39, and after the motor 314 is electrified, the fan 311 and the oil pump 38 work simultaneously.

2) The fan 311 provides air for combustion and also provides power for smooth discharge of flue gas. An air door baffle 36 is arranged on the side surface of the gas burner, an air door position display 310 and an air door adjusting bolt 312 are arranged on the air door baffle 36, and the amount of combustion air (the amount of the air door) can be adjusted through the air door adjusting bolt 312 according to the amount of fuel consumption;

3) an oil pump electromagnetic oil valve 37 is connected to the oil pump 38, the oil pump 38 is connected with the oil nozzle 33 through a connecting oil pipe 35, and the oil inlet pipe 14 and the oil return pipe 15 are respectively connected with the oil pump 38. The function of the oil pump 38 is to suck oil and pressurize the rear nozzle 33 for atomization. The oil pressure can be adjusted within the range of 0.85-1.20 MPa.

4) The photoelectric eye 313 functions to monitor the ignition of the ignition electrode 34. When the ignition is successful, the photoelectric eye 318 operates to cut off the power supply of the ignition electrode 34, and the ignition electrode 34 stops the ignition.

5) The program controller 32 controls the whole process of "the motor 314 of the burner 3 is operated → the fan 311 supplies combustion air → the oil pump 38 sucks oil → the oil pump electromagnetic oil valve 37 is opened → the oil nipple 33 atomizes oil injection → the ignition electrode 34 ignites → ignition is stopped after ignition succeeds" according to the design program. When fuel is not supplied or the ignition electrode 34 is damaged and can not ignite to burn, the power supply of the burner 3 is automatically cut off by the program controller 32, and the red light of the reset button of the program controller 32 is on. If the burner 3 needs to be started again, the reset button 31 of the program controller 32 must be pressed, and the power supply is turned on and the red light is turned off.

Referring to fig. 4, the combustion heat exchanger of the structure of the embodiment of the combustion heat exchanger 11 of the present invention is a composite body composed of a combustion chamber 113 and a heat exchanger 114, and a burner attachment flange 111 for mounting a burner and a flame observation hole 112 for observing the flame state of the combustion chamber 113 are provided at the front end of the combustion chamber 113. The lower part of the combustion chamber 113 is provided with a flue gas outlet from which the high temperature flue gas after combustion flows into the heat exchanger 114.

A plurality of semicircular long grooves 116 are punched on the outer wall of the heat exchanger 114 to increase the heat exchange area. The structure of a particular embodiment of the heat exchanger 114 may be nested with inner and outer cylinders, each of which may be stamped with a plurality of semi-circular slots 116.

The upper part of the heat exchanger 114 is provided with a smoke outlet 115 which is communicated with the chimney 7.

The burner 3 atomizes and burns the oil under high pressure in the combustion chamber 113, the smoke passes through the heat exchanger 114 and is discharged from the chimney 7, the air blower 10 sends outdoor cold air to exchange heat with the combustion heat exchanger 11, and the hot air is discharged from the front blast pipe 5 of the fan heater. And the fan heater is automatically controlled by the control system 4 in the running process.

Referring to fig. 5, the structure of the embodiment of the control system 4 of the present invention mainly comprises a control box 43 and a room temperature controller 42; the main cable 41 is connected with a control box 43, the room temperature controller 42 is connected with the control box 43, the main control devices comprise a photoelectric tube 46, the combustor 3, an air supply temperature sensor, a preheater 47 and the like, and the air supply temperature sensor is arranged at the front end of the shell. The control system 4 can respond to the temperature information sent by it according to the preset setting, in the preferred embodiment, the air supply temperature sensors are two: a first supply air temperature sensor 44 and a second supply air temperature sensor 45. The room temperature controller 42 is used for controlling the room temperature, a temperature adjusting button is arranged on a control panel of the room temperature controller, and the heating temperature is set by a heater according to the requirement.

Referring to fig. 6 and 7, the control box 43 is mounted at the front right of the lower case 12, and is provided with an operation display panel and three terminals. The operation display panel is provided with a room temperature controller socket 432, an external power socket 433, a timing display screen 435, operation buttons and a display lamp 435. The operation buttons and their display lamps 435 include a failure display lamp and 8 touch operation "keys" and their display lamps.

The three terminals are respectively arranged on the lower end face of the control box 43, and are respectively connected with a fan and a burner (five cores), an air supply temperature sensor (three cores), a preheater and a photoelectric tube (seven cores), wherein the preheater and photoelectric tube socket 436, the air supply temperature sensor socket 437 and the fan and burner socket 438 are respectively arranged on the lower end face of the control box. An air switch 439 and a hair dryer receptacle 431 are provided on the back of the control box 43.

The specific control process flow of the invention is as follows:

the room temperature controller 42 is switched on, then the power supply is switched on, the 'automatic' button is lightly pressed, and the fan heater is in an automatic control state. When the indoor temperature reaches the heating temperature set by the room temperature controller 42, the warm air blower is automatically stopped; when the indoor temperature is lower than the set temperature, the warm air blower can be automatically started to keep the indoor temperature stable. When the "continuous" button is pressed, the room temperature controller 42 is no longer active, and the fan heater is kept in a continuous operation state. When the ventilation button is pressed, the burner stops working, and the warm air blower is used as a ventilator. In the usual case, the fan heater should be operated in an "automatic" manner.

After the power is switched on, the indicator light on the corresponding operation key is on when the warm air blower normally operates. When a fault occurs, such as circuit overheating protection and the like, a red light on the 'fault' key is on, and the fan heater stops working. Pressing the running key may look up the fault category:

err 1: represents an overheat protection fault OU: the input voltage exceeds 250V

Err 2: represents a supply air temperature sensor open failure UF: the frequency of the input power supply is lower than 50Hz

Err 3: short-circuit failure OF air supply temperature sensor: the frequency of the input power exceeds 50Hz

And (4) UU: the input voltage is lower than 200V

Pressing the 'stop reset' key resets and checks the corresponding fault condition.

The timer can automatically record the working time (hours) of the burner, when the key which is running is pressed, the timing display screen 435 displays the accumulated running hours of the fan heater, the air supply temperature can be displayed by pressing again, the furnace protection temperature can be displayed by pressing three times, the current running voltage can be displayed by pressing four times, and the current power supply frequency can be displayed by pressing five times.

The air switch 439 is normally in an off state, and automatically trips when the power supply voltage is too high or short-circuited, so as to protect the components in the control box 43 and the blower 10 from being burned out.

After the fan heater is started, the blower starts to work when the temperature of the heat exchange room rises to 40 ℃. When the blowing temperature reaches 108 ℃, the burner 3 stops working and the blower 10 continues blowing. When the supply air temperature drops to 70 ℃, the burner 3 is restarted again. When the temperature of the heat exchange chamber rises to 120 ℃, the power supply of the burner 3 and the blower 10 can be automatically cut off, and the 'fault' indicator lamp is on.

When the warm air blower is turned off, the stop button is pressed, the burner 3 is immediately stopped, the air blower 10 continues to supply air at the moment, and the power of the air blower 10 is cut off and the stop is carried out when the air supply temperature is reduced to about 40 ℃.

The maximum air supply temperature of the fan heater is set to be 108 ℃ when the fan heater leaves a factory, and can be increased from 95 ℃ to 110 ℃ by pressing a 'wind temperature setting' button according to needs.

When the fan heater is operated in an "automatic" mode, a room temperature controller 42 must be plugged in. When the indoor temperature is lower than the temperature set by the room temperature controller 42, the fan heater is automatically started; when the indoor temperature is higher than the preset temperature of the room temperature controller 42, the burner 3 is automatically turned off, and heating is stopped.

In addition, control operation buttons such as "automatic", "stop", "ventilation", and "continuous" are provided on the control panel of the room temperature controller 42, and functions as those of the buttons on the panel of the control box 43. The "start-up preparation", "start-up shutdown", "maintenance", "fault query", "notice" and "voice pause" can guide the user to operate and use, help the user to master the use method and query the fault reason.

The present invention and the technical contents not specifically described in the above embodiments are the same as the prior art.

The above embodiments are only specific embodiments disclosed in the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention is defined by the claims.