Natural gas heating furnace

Abstract

The utility model discloses a natural gas heating furnace and belongs to the field of heating furnaces. A natural gas heating furnace comprises a heating furnace body and further comprises a portal frame fixed to one side of the heating furnace body. The sealing door is arranged in the portal frame; the lifting assembly is used for driving the sealing door to lift; the air exhaust box is arranged on the lower side of the sealing door; the air exhaust pipe is arranged on the sealing door, and the air exhaust pipe is communicated with the air exhaust box; the water supply pipe is arranged on the sealing door, and the water supply pipe is communicated with the sealing door; the water pump is fixed on the heating furnace body, and the water supply end of the water pump is communicated with a water supply pipe; the overflow pipe is fixed on the sealing door, and the overflow pipe is communicated with the sealing door; the heating furnace effectively prevents discharged gas from being overheated, and effectively prevents hot gas in the heating furnace body from overflowing to cause sharp rise of ambient temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a natural gas heating furnace. Background Art

[0002] During the processing of the head, it needs to be heated. Generally, an industrial natural gas heating furnace is used to heat and cool the head to improve the quality of the head. A sealing door is provided at the furnace mouth of the heating furnace. After the heating is completed, a forklift or a trolley is needed to take out the head, and then the head to be heated is placed in it for heating treatment.

[0003] After the current natural gas heating furnace heats the workpiece, the sealed door is directly opened through the gantry, and then the workpiece is taken out. Due to the high temperature in the furnace, after the sealed door is opened, the hot air in the furnace will overflow, causing the temperature on one side of the heating furnace opening to rise sharply, affecting its working environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a natural gas heating furnace which can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A natural gas heating furnace comprises: a heating furnace body, and also comprises: a gantry fixed on one side of the heating furnace body; a sealing door arranged in the gantry; a lifting assembly for driving the sealing door to rise and fall; an exhaust box arranged on the lower side of the sealing door; an exhaust pipe arranged on the sealing door, and the exhaust pipe is connected to the exhaust box; a water supply pipe arranged on the sealing door, and the water supply pipe is connected to the sealing door; a water pump fixed on the heating furnace body, and the water supply end of the water pump is connected to the water supply pipe; an overflow pipe fixed on the sealing door, and the overflow pipe is connected to the sealing door.

[0007] In order to improve the heat exchange efficiency of the hot air, further, a serpentine tube is arranged in the sealing door, the serpentine tube is connected to the air extraction box, and one end of the serpentine tube away from the air extraction box is connected to the air extraction pipe.

[0008] In order to facilitate the lifting and lowering of the sealing door, the lifting assembly further includes a winding wheel that rotates symmetrically on the gantry, a steel wire rope is fixedly connected between the winding wheel and the sealing door, a motor is fixedly connected to the gantry, and the output end of the motor is fixedly connected to the winding wheel.

[0009] In order to facilitate cooling of the serpentine tube, further, a cooling box matching the serpentine tube is fixedly connected in the sealing door, a plurality of circular holes matching the serpentine tube are opened on the cooling box, and one end of the overflow pipe is connected to the cooling box.

[0010] In order to facilitate uniform air extraction, further, a mesh plate is fixedly connected to the lower side of the air extraction box.

[0011] In order to prevent the hot air in the heating furnace body from being extracted, further, a guide angle is provided on a side of the exhaust box away from the heating furnace body.

[0012] Compared with the prior art, the utility model provides a natural gas heating furnace, which has the following beneficial effects:

[0013] 1. The natural gas heating furnace starts the water pump and the air pump connected to the exhaust pipe from the outside, and the gas on the lower side of the sealing door passes through the exhaust box, the serpentine pipe and the exhaust pipe in turn, so that the gas on the front side of the heating furnace body flows into the exhaust box, and the hot air overflowing from the heating furnace body flows into the exhaust box along with the gas on the front side, and finally the water flowing in the sealing door exchanges heat with the hot air in the serpentine pipe, thereby effectively preventing the exhaust gas from being overheated, and effectively preventing the hot gas in the heating furnace body from overflowing and causing a sharp rise in the ambient temperature.

[0014] 2. In the natural gas heating furnace, the water pump delivers water into the sealed door, and then sprays the water onto the serpentine pipe through the circular hole. The water in the cooling box overflows outward through the overflow pipe, thereby effectively improving the efficiency of cooling the hot gas.

[0015] 3. The natural gas heating furnace, through the setting of the mesh plate, makes the air flow velocity of the gas extracted by the exhaust box uniform and matches with the guide angle, thereby effectively preventing the hot gas in the heating furnace body from overflowing.

[0016] The parts not involved in the device are the same as the prior art or can be implemented by using the prior art. The utility model effectively prevents the exhaust gas from being overheated, and effectively prevents the hot gas in the heating furnace body from overflowing and causing the surrounding environment temperature to rise sharply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a natural gas heating furnace proposed by the utility model;

[0018] Figure 2 A cross-sectional view of a natural gas heating furnace proposed in the utility model Figure 1 ;

[0019] Figure 3 A cross-sectional view of a natural gas heating furnace proposed in the utility model Figure 2 ;

[0020] Figure 4 The utility model is a structural schematic diagram of a sealing door in a natural gas heating furnace.

[0021] In the figure: 1. Heating furnace body; 101. Gantry; 102. Motor; 103. Winding wheel; 104. Wire rope; 105. Water pump; 106. Water supply pipe; 2. Sealing door; 201. Exhaust pipe; 202. Serpentine pipe; 203. Exhaust box; 204. Mesh plate; 205. Guide angle; 206. Cooling box; 207. Round hole; 208. Overflow pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1: Reference Figure 1-Figure 4 A natural gas heating furnace comprises: a heating furnace body 1, and also comprises: a gantry 101 fixed on one side of the heating furnace body 1; a sealing door 2 arranged in the gantry 101; a lifting component for driving the sealing door 2 to rise and fall; an exhaust box 203 arranged on the lower side of the sealing door 2; an exhaust pipe 201 arranged on the sealing door 2, and the exhaust pipe 201 is connected to the exhaust box 203; a water supply pipe 106 arranged on the sealing door 2, and the water supply pipe 106 is connected to the sealing door 2; a water pump 105 fixed on the heating furnace body 1, and the water supply end of the water pump 105 is connected to the water supply pipe 106; an overflow pipe 208 fixed on the sealing door 2, and the overflow pipe 208 is connected to the sealing door 2.

[0024] A serpentine tube 202 is provided in the sealing door 2 , the serpentine tube 202 is connected to the air extraction box 203 , and one end of the serpentine tube 202 away from the air extraction box 203 is connected to the air extraction pipe 201 .

[0025] The lifting assembly includes a winding wheel 103 that rotates symmetrically on the gantry 101 , a steel wire rope 104 is fixedly connected between the winding wheel 103 and the sealing door 2 , a motor 102 is fixedly connected to the gantry 101 , and an output end of the motor 102 is fixedly connected to the winding wheel 103 .

[0026] When the heating furnace body 1 is used to process the head, the head is placed in the heating furnace body 1 for heating. After the heating is completed, the two motors 102 are turned on. The motor 102 winds the wire rope 104 through the winding wheel 103 to retract the sealing door 2 upwards. At the same time, the water pump 105 and the air pump connected to the outside and the exhaust pipe 201 are turned on. The gas on the lower side of the sealing door 2 passes through the exhaust box 203, the serpentine tube 202 and the exhaust pipe 201 in turn, so that the gas on the front side of the heating furnace body 1 flows into the exhaust box 203, and the hot air overflowing from the heating furnace body 1 flows into the exhaust box 203 along with the gas on the front side. Finally, the water flowing in the sealing door 2 exchanges heat with the hot air in the serpentine tube 202, thereby effectively preventing the exhaust gas from overheating and effectively preventing the hot gas in the heating furnace body 1 from overflowing and causing a sharp increase in the ambient temperature.

[0027] Example 2: Reference Figure 1-Figure 4 A natural gas heating furnace is basically the same as Example 1. Further, a cooling box 206 matching the serpentine tube 202 is fixedly connected inside the sealed door 2, a plurality of circular holes 207 matching the serpentine tube 202 are opened on the cooling box 206, and one end of the overflow pipe 208 is connected to the cooling box 206.

[0028] A mesh plate 204 is fixedly connected to the lower side of the vacuum box 203 .

[0029] A guide angle 205 is provided on one side of the exhaust box 203 away from the heating furnace body 1 .

[0030] The water pump 105 delivers water into the sealed door 2, and then sprays the water onto the serpentine pipe 202 through the circular hole 207. The water in the cooling box 206 overflows outward through the overflow pipe 208, thereby effectively improving the efficiency of cooling the hot air.

[0031] By setting the mesh plate 204, the air flow velocity of the gas extracted by the exhaust box 203 is made uniform and matched with the guide angle 205, so as to effectively prevent the hot gas in the heating furnace body 1 from overflowing.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural gas heating furnace, comprising: The heating furnace body (1) is characterized by further comprising: A gantry (101) fixed on one side of the heating furnace body (1); A sealing door (2) is arranged in the gantry (101); A lifting component for driving the sealing door (2) to lift and lower; An air extraction box (203) is arranged on the lower side of the sealing door (2); An air extraction pipe (201) is arranged on the sealing door (2), and the air extraction pipe (201) is connected to the air extraction box (203); A water supply pipe (106) is arranged on the sealing door (2), and the water supply pipe (106) is connected to the sealing door (2); A water pump (105) is fixed on the heating furnace body (1), and a water supply end of the water pump (105) is connected to a water supply pipe (106); An overflow pipe (208) is fixed on the sealing door (2), and the overflow pipe (208) is in communication with the sealing door (2).

2. A natural gas heating furnace according to claim 1, characterized in that: A serpentine tube (202) is arranged inside the sealing door (2), the serpentine tube (202) is connected to the air extraction box (203), and one end of the serpentine tube (202) away from the air extraction box (203) is connected to the air extraction pipe (201).

3. The natural gas heating furnace according to claim 1, characterized in that: The lifting assembly comprises a winding wheel (103) symmetrically rotating on a gantry (101), a steel wire rope (104) being fixedly connected between the winding wheel (103) and the sealing door (2), a motor (102) being fixedly connected to the gantry (101), and an output end of the motor (102) being fixedly connected to the winding wheel (103).

4. A natural gas heating furnace according to claim 2, characterized in that: A cooling box (206) matching the serpentine tube (202) is fixedly connected inside the sealing door (2), a plurality of circular holes (207) matching the serpentine tube (202) are provided on the cooling box (206), and one end of the overflow pipe (208) is connected to the cooling box (206).

5. The natural gas heating furnace according to claim 1, characterized in that: A mesh plate (204) is fixedly connected to the lower side of the vacuum box (203).

6. A natural gas heating furnace according to claim 1, characterized in that: A guide angle (205) is provided on the side of the exhaust box (203) away from the heating furnace body (1).

Images