A safety detection device for low nitrogen burners

Abstract

The utility model relates to a low-nitrogen burner safety detection device, which comprises a burner body and a mixing tube installed on the burner body, a gas pipe is installed on one side of the mixing tube, a detection mechanism is installed on the gas pipe, and the detection mechanism comprises a mounting cylinder located at the top of the gas pipe, a fixing cylinder installed on the top of the mounting cylinder, an air inlet pipe installed at the bottom of the mounting cylinder and connected to the gas pipe, a piston slidably connected in the mounting cylinder, a mounting rod installed on the top of the piston, and a spring sleeved on the outside of the mounting rod. When the pressure inside the gas pipe is relatively high during use of the utility model, the gas will enter the gas storage box through the recovery pipe, and then the pressure can be relieved in time, thereby avoiding the situation that the gas pipe is broken and leaked due to the high pressure, thereby extending the service life of the gas pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of burner detection, and in particular relates to a low-nitrogen burner safety detection device. Background Art

[0002] A low-nitrogen burner is a device that adds a blower, induced draft fan, inverter, control valve and multiple circuits to a traditional burner to allow clean energy and burner operation to provide more efficient heat energy for the boiler.

[0003] Most of the gas delivery pipes used in existing low-nitrogen burners are hard pipes. In order to ensure safety in use, a detection device is installed on the gas pipe to detect the pressure inside the gas pipe. However, the existing detection device can only detect the pressure when in use. However, in the process of gas transportation, when the pressure is high, the pressure cannot be relieved in time. Since the gas pipe is a hard pipe and its internal space is fixed, when the internal pressure of the gas pipe is high, the pipeline is prone to expansion or damage after being pressurized, which reduces the service life of the gas pipe and also increases the economic cost. Utility Model Content

[0004] The purpose of the utility model is to provide a low-nitrogen burner safety detection device with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A low-nitrogen burner safety detection device comprises a burner body and a mixing tube installed on the burner body, a gas pipe is installed on one side of the mixing tube, a detection mechanism is installed on the gas pipe, the detection mechanism comprises a mounting cylinder located at the top of the gas pipe, a fixed cylinder installed on the top of the mounting cylinder, an air inlet pipe installed at the bottom of the mounting cylinder and connected to the gas pipe, a pressure plate slidably connected in the fixed cylinder, an alarm mechanism arranged on the fixed cylinder, and a lifting mechanism installed in the mounting cylinder for driving the pressure plate to lift and lower, and a gas storage mechanism used in conjunction with the detection mechanism is installed on the burner body.

[0007] As a further optimization scheme of the utility model, the alarm mechanism includes two control buttons installed on the top and bottom inner walls of the fixed cylinder and used in conjunction with the pressure plate, and an alarm installed on the top of the fixed cylinder and electrically connected to the control buttons.

[0008] As a further optimization scheme of the utility model, the lifting mechanism includes a piston slidably connected in the mounting cylinder, a mounting rod installed on the top of the piston, and a spring sleeved on the outside of the mounting rod, the two ends of the spring are respectively fixedly connected to the top of the piston and the top inner wall of the mounting cylinder, and one end of the mounting rod extends into the fixed cylinder and is fixedly connected to the bottom of the pressure plate.

[0009] As a further optimization scheme of the utility model, the gas storage mechanism includes a gas storage box installed on the top of the burner body, a recovery pipe installed on one side of the mounting tube and connected to the gas storage box, and a connecting pipe installed on the other side of the gas storage box and connected to the gas pipe, and a one-way valve is installed on the outside of the connecting pipe.

[0010] As a further optimization solution of the utility model, a flame-spraying tube is installed at one end of the mixing tube via a flange.

[0011] As a further optimization solution of the present utility model, a fixing plate is installed on one side of the burner body, and the outside of the fixing plate is fixedly connected to the outside of the mounting tube.

[0012] The beneficial effect of the utility model is that when the pressure inside the gas pipe is high during use, the gas will enter the gas storage box through the recovery pipe, and then the pressure can be released in time, thereby avoiding the gas pipe from rupturing and leaking due to the high pressure, thereby extending the service life of the gas pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the detection mechanism of the utility model;

[0016] Figure 4 The utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1. burner body; 2. mixing tube; 3. gas pipe; 4. gas storage box; 5. mounting tube; 6. fixing tube; 7. flamethrower tube; 8. recovery tube; 9. air intake pipe; 10. mounting rod; 11. pressure plate; 12. alarm; 13. control button; 14. spring; 15. piston; 16. connecting pipe. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1

[0020] like Figure 1-Figure 4As shown, a low nitrogen burner safety detection device comprises a burner body 1, and a mixing tube 2 installed on the burner body 1, a gas pipe 3 is installed on one side of the mixing tube 2, and a detection mechanism is installed on the gas pipe 3, the detection mechanism comprises a mounting cylinder 5 located at the top of the gas pipe 3, a fixing cylinder 6 installed on the top of the mounting cylinder 5, an intake pipe 9 installed at the bottom of the mounting cylinder 5 and connected to the gas pipe 3, a piston 15 slidably connected in the mounting cylinder 5, a mounting rod 10 installed on the top of the piston 15, and a spring 14 sleeved on the outside of the mounting rod 10, and the two ends of the spring 14 are respectively connected to the mounting cylinder 5 and the mounting cylinder 5. The top of the piston 15 is fixedly connected to the top inner wall of the mounting tube 5. A gas storage mechanism used in conjunction with the detection mechanism is installed on the burner body 1. The gas storage mechanism includes a gas storage box 4 installed on the top of the burner body 1, a recovery pipe 8 installed on one side of the mounting tube 5 and connected to the gas storage box 4, and a connecting pipe 16 installed on the other side of the gas storage box 4 and connected to the gas pipe 3. A one-way valve is installed on the outside of the connecting pipe 16. A flamethrower 7 is installed on one end of the mixing tube 2 through a flange. A fixing plate is installed on one side of the burner body 1, and the outside of the fixing plate is fixedly connected to the outside of the mounting tube 5.

[0021] It should be noted that, in this low-nitrogen burner safety detection device, during the process of conveying gas, when the pressure inside the gas pipe 3 is relatively high, the piston 15 will push the mounting rod 10 upward under the action of pressure. At this time, the spring 14 will undergo elastic deformation under the action of pressure. When the piston 15 moves to the top of the recovery pipe 8, the gas that enters the fixed cylinder 6 through the intake pipe 9 will enter the gas storage tank 4 through the recovery pipe 8, thereby relieving the pressure inside the gas pipe 3 to avoid the high pressure inside the gas pipe 3, which will cause the gas pipe 3 to rupture and leak. When the pressure inside the gas pipe 3 is relatively low, the gas inside the gas storage tank 4 will flow back to the gas pipe 3 again through the connecting pipe 16.

[0022] Embodiment 2:

[0023] Combination Figure 1-4 As shown, this embodiment is further improved on the basis of Embodiment 1 in that: the detection mechanism also includes a pressure plate 11 slidably connected in the fixed cylinder 6, and an alarm mechanism arranged on the fixed cylinder 6, the alarm mechanism includes two control buttons 13 installed on the top and bottom inner walls of the fixed cylinder 6 and used in conjunction with the pressure plate 11, and an alarm 12 installed on the top of the fixed cylinder 6 and electrically connected to the control buttons 13, and one end of the mounting rod 10 extends into the fixed cylinder 6 and is fixedly connected to the bottom of the pressure plate 11.

[0024] The difference between this embodiment and embodiment 1 is that when the piston 15 pushes the mounting rod 10 to move upward, the pressure plate 11 will also move upward. When the piston 15 moves to the upper side of the recovery pipe 8, the pressure plate 11 will press the control button 13 installed on the top inner wall of the fixed cylinder 6. At this time, the alarm 12 will sound an alarm. When the pressure inside the gas pipe 3 is relatively small, the piston 15 will move downward under the action of the elastic force of the spring 14, and the mounting rod 10 will be driven to move downward. Under the drive of the mounting rod 10, the pressure plate 11 will move downward. When the pressure plate 11 contacts the control button 13 installed on the bottom inner wall of the fixed cylinder 6, the control button 13 is pressed back. At this time, the alarm 12 will sound an alarm. In this way, when the pressure inside the gas pipe 3 is relatively large or relatively small, an alarm will be sounded in time so that the staff can focus on observing the burner, thereby reducing the occurrence of safety accidents.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A low nitrogen burner safety detection device, comprising a burner body (1), and a mixing tube (2) mounted on the burner body (1), characterized in that: A gas pipe (3) is installed on one side of the mixing tube (2), and a detection mechanism is installed on the gas pipe (3). The detection mechanism comprises a mounting tube (5) located at the top of the gas pipe (3), a fixed tube (6) installed on the top of the mounting tube (5), an air intake pipe (9) installed at the bottom of the mounting tube (5) and connected to the gas pipe (3), a pressure plate (11) slidably connected in the fixed tube (6), an alarm mechanism arranged on the fixed tube (6), and a lifting mechanism installed in the mounting tube (5) for driving the pressure plate (11) to be lifted and lowered. A gas storage mechanism used in conjunction with the detection mechanism is installed on the burner body (1).

2. A low nitrogen burner safety detection device according to claim 1, characterized in that: The alarm mechanism comprises two control buttons (13) mounted on the top and bottom inner walls of the fixed cylinder (6) and used in conjunction with the pressure plate (11), and an alarm (12) mounted on the top of the fixed cylinder (6) and electrically connected to the control buttons (13).

3. A low nitrogen burner safety detection device according to claim 1, characterized in that: The lifting mechanism comprises a piston (15) slidably connected in a mounting cylinder (5), a mounting rod (10) mounted on the top of the piston (15), and a spring (14) sleeved on the outside of the mounting rod (10), wherein two ends of the spring (14) are respectively fixedly connected to the top of the piston (15) and the top inner wall of the mounting cylinder (5), and one end of the mounting rod (10) extends into the fixing cylinder (6) and is fixedly connected to the bottom of the pressure plate (11).

4. A low nitrogen burner safety detection device according to claim 1, characterized in that: The gas storage mechanism comprises a gas storage box (4) mounted on the top of the burner body (1), a recovery pipe (8) mounted on one side of the mounting cylinder (5) and connected to the gas storage box (4), and a connecting pipe (16) mounted on the other side of the gas storage box (4) and connected to the fuel gas pipe (3), wherein a one-way valve is mounted on the outside of the connecting pipe (16).

5. A low nitrogen burner safety detection device according to claim 1, characterized in that: A flame-spraying tube (7) is mounted on one end of the mixing tube (2) via a flange.

6. A low nitrogen burner safety detection device according to claim 1, characterized in that: A fixing plate is installed on one side of the burner body (1), and the outside of the fixing plate is fixedly connected to the outside of the mounting cylinder (5).

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