Gas fan heater

Abstract

The utility model relates to the technical field of warm air blowers, and discloses a gas warm air blower which is characterized in that an air inlet is formed in the upper side of a shell, an air outlet is formed in the front side of the shell, a combustor is installed in the shell, one side of the combustor is connected with an air inlet pipe, a combustion chamber is arranged at one end of the combustor, and an air outlet pipe is arranged at the other end of the combustor. The end, away from the combustor, of the combustion chamber communicates with a heat exchange pipe. Blocking rings are evenly installed in the heat exchange pipe, the blocking rings can effectively block smoke and conduct heat in the smoke to the outer wall of the heat exchange pipe to the maximum degree, spiral blades are arranged in the heat exchange pipe, and when a driving assembly in the fan drives the fan blades to rotate, the fan blades are connected with a center main shaft of the spiral blades, so that the fan blades are connected with the center main shaft of the spiral blades. Due to the fact that the spiral blades are opposite to the fan blades in the fan, when the fan is started to pump and exhaust the smoke, the spiral blades rotate to drive the smoke to partially flow back so that the smoke can make contact with the blocking ring again, and utilization of the smoke is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air heaters, in particular to a gas air heater. Background Art

[0002] A gas heater is a heating device that uses gas as fuel. It generates heat energy through combustion and sends warm air into the room through forced convection, thereby increasing the indoor temperature.

[0003] The gas heater has components such as a combustion chamber, an ignition system, an air supply system, a motor, and a safety device. After the device is turned on through the control panel, the signal is transmitted to the inside of the device, the fan starts working, and pre-purge is performed. Subsequently, the ignition transformer works, continuously discharges to generate sparks, the safety valve opens, and the gas enters the combustion chamber through the safety valve and burns after contacting the spark. The photoelectric sensor senses the flame inside the machine, and the entire work is completed after sensing the flame burning state. During this process, the motor not only plays the role of supplying oxygen, but is also responsible for delivering a large amount of ventilation to the room.

[0004] However, existing small gas heaters have short heat exchange tubes, resulting in a small heat exchange area. This causes flue gas to be discharged from the heat exchange tubes before it can transfer heat to the outer walls of the heat exchange tubes, resulting in low heater efficiency. Therefore, those skilled in the art have provided a gas heater to address the problems raised in the above background technology. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a gas heater to solve the problem that the existing small gas heater has a short heat exchange tube, which makes the heat exchange area small, and the flue gas is discharged from the heat exchange tube before the heat is transferred to the outer wall of the heat exchange tube, resulting in low heat exchange efficiency of the heater.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas heater, comprising a shell, an air inlet is provided on the upper side of the shell, an air outlet is provided on the front side of the shell, a burner is installed in the shell, one side of the burner is connected to an air intake pipe, a gas intake pipe is provided on the lower side of the air intake pipe, a combustion chamber is provided at one end of the burner, and a heat exchange pipe is connected to the end of the combustion chamber away from the burner, a baffle ring is installed in the heat exchange pipe, a spiral blade passes through the middle of the baffle ring, the outer wall of the shell is connected to a smoke collection hood, a fan is installed in the smoke collection hood, and one side of the smoke collection hood is connected to a smoke exhaust pipe.

[0009] Preferably, the smoke hood is connected to the end of the heat exchange tube away from the combustion chamber, and the fan is installed on the side of the smoke hood close to the heat exchange tube. The fan is used to extract the smoke so that the smoke is discharged from the exhaust pipe.

[0010] Preferably, the outer wall of the spiral blade contacts the inner wall of the resistance ring, thereby forming a supporting effect.

[0011] Preferably, the fan is connected to the spiral blades. When the driving component in the fan drives the fan blades to rotate, the fan blades are connected to the central main shaft of the spiral blades, thereby driving the spiral blades to rotate. Since the spiral blades are relative to the fan blades in the fan, when the fan starts to exhaust smoke, the rotation of the spiral blades can drive partial reflux of the smoke.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention provides a gas heater with the following beneficial effects:

[0014] Through design, resistance rings are evenly installed in the heat exchange tubes, and the resistance rings can effectively block the flue gas and maximize the transfer of heat in the flue gas to the outer wall of the heat exchange tube, thereby improving the heat exchange efficiency of the heat exchange equipment. Spiral blades are provided in the heat exchange tubes. When the driving component in the fan drives the fan blades to rotate, the fan blades are connected to the central main shaft of the spiral blades, thereby driving the spiral blades to rotate. Due to the relative position of the spiral blades and the fan blades in the fan, when the fan starts to exhaust the flue gas, the rotation of the spiral blades can drive the flue gas to partially reflux, thereby contacting the resistance ring again, further improving the utilization of the flue gas, and thus further improving the heat exchange effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a gas heater provided in an embodiment of the present application.

[0016] Figure 2 This is a schematic structural diagram of a burner in a gas heater provided in an embodiment of the present application.

[0017] Figure 3 This is a structural cross-sectional view of a heat exchange tube in a gas heater provided in an embodiment of the present application.

[0018] In the figure: 1. Shell; 2. Air inlet; 3. Air outlet; 4. Burner; 5. Air inlet pipe; 6. Gas inlet pipe; 8. Combustion chamber; 9. Heat exchange tube; 10. Baffle ring; 11. Spiral blade; 12. Smoke hood; 13. Exhaust pipe; 14. Fan. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The utility model provides a technical solution, a gas heater, please refer to Figure 1 , comprising a housing 1, an air inlet 2 is provided on the upper side of the housing 1, an air outlet 3 is provided on the front side of the housing 1, and a burner 4 is installed in the housing 1, see Figure 2 、 Figure 3 One side of the burner 4 is connected to an air intake pipe 5, and a gas intake pipe 6 is provided on the lower side of the air intake pipe 5. A combustion chamber 8 is provided at one end of the burner 4, and the end of the combustion chamber 8 away from the burner 4 is connected to a heat exchange pipe 9. A baffle ring 10 is installed in the heat exchange pipe 9, and the baffle ring 10 can effectively block the flue gas, prolong the residence time of the flue gas, and maximize the heat in the flue gas to the outer wall of the heat exchange pipe 9. A spiral blade 11 passes through the middle of the baffle ring 10, and the outer wall of the shell 1 is connected to a smoke hood 12, a fan 14 is installed in the smoke hood 12, and one side of the smoke hood 12 is connected to a smoke exhaust pipe 13.

[0021] See also Figure 2 、 Figure 3 The smoke hood 12 is connected to the end of the heat exchange tube 9 away from the combustion chamber 8, and the fan 14 is installed on the side of the smoke hood 12 adjacent to the heat exchange tube 9. The fan 14 is used to extract the smoke so that the smoke is discharged from the smoke exhaust pipe 13. The outer wall of the spiral blade 11 is in contact with the inner wall of the resistance ring 10, thereby forming a supporting effect. The fan 14 is connected to the spiral blade 11. When the driving component in the fan 14 drives the fan blade to rotate, the fan blade is connected to the central main shaft of the spiral blade 11, thereby driving the spiral blade 11 to rotate. Since the spiral blade 11 is relative to the fan blade in the fan 14, when the fan 14 starts to extract the smoke, the rotation of the spiral blade 11 can drive the smoke to partially reflux.

[0022] In the present invention, an air inlet 2 is provided on the upper side of the shell 1, and an air outlet 3 is provided on the front side of the shell 1 for guiding heat. A burner 4 is installed in the shell 1, and a combustion chamber 8 is installed on one side of the burner 4. One side of the burner 4 is connected to an air intake pipe 5 and a gas intake pipe 6, respectively. A heat exchange pipe 9 is connected to one end of the combustion chamber 8.

[0023] The heat exchange tube 9 is evenly installed with a resistance ring 10, and the resistance ring 10 can effectively block the smoke, prolong the residence time of the smoke, and maximize the heat in the smoke to the outer wall of the heat exchange tube 9, so that the heat exchange efficiency of the heat exchange equipment is improved. A spiral blade 11 is provided in the heat exchange tube 9, and the outer wall of the spiral blade 11 contacts the inner wall of the resistance ring 10, thereby forming a supporting effect. A smoke hood 12 is installed at the other end of the heat exchange tube 9, and a fan 14 is provided in the smoke hood 12. The fan 14 It is used to extract the smoke so that the smoke is discharged from the smoke exhaust pipe 13, and when the driving component in the fan 14 drives the fan blade to rotate, the fan blade is connected to the central main shaft of the spiral blade 11, thereby driving the spiral blade 11 to rotate. Since the spiral blade 11 is relative to the fan blade in the fan 14, when the fan 14 starts to extract the smoke, the rotation of the spiral blade 11 can drive the smoke to partially reflux, so that it contacts the resistance ring 10 again, further improving the utilization of the smoke, and then further improving the heat exchange effect of the equipment.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] In this document, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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. Unless otherwise clearly specified, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas heater, comprising a housing (1), characterized in that: An air inlet (2) is provided on the upper side of the shell (1), and an air outlet (3) is provided on the front side of the shell (1). A burner (4) is installed in the shell (1), one side of the burner (4) is connected to an air intake pipe (5), and a gas intake pipe (6) is provided on the lower side of the air intake pipe (5). A combustion chamber (8) is provided at one end of the burner (4), and an end of the combustion chamber (8) away from the burner (4) is connected to a heat exchange pipe (9), a resistance ring (10) is installed in the heat exchange pipe (9), and a spiral blade (11) passes through the middle of the resistance ring (10), and the outer wall of the shell (1) is connected to a smoke hood (12), a fan (14) is installed in the smoke hood (12), and one side of the smoke hood (12) is connected to a smoke exhaust pipe (13).

2. A gas heater according to claim 1, characterized in that: The smoke collecting hood (12) is connected to the end of the heat exchange tube (9) away from the combustion chamber (8), and the fan (14) is installed on the side of the smoke collecting hood (12) adjacent to the heat exchange tube (9).

3. The gas heater according to claim 1, characterized in that: The fan (14) is connected to the spiral blade (11).

4. A gas heater according to claim 1, characterized in that: The outer wall of the spiral blade (11) contacts the inner wall of the baffle ring (10).

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