Pressure loss alarm device of fuel oil steam boiler

Abstract

The utility model discloses a pressure loss alarm device of a fuel oil steam boiler, which comprises a steam header, a steam pressure gauge, a pressure switch and an alarm, the steam header is connected with the fuel oil steam boiler through a steam delivery pipe, a pressure tapping is arranged on the steam header, and the steam pressure gauge and the pressure switch are arranged on the pressure tapping. The steam pressure gauge is used for detecting the steam pressure in the steam header; the pressure switch is connected with the alarm through a wire and used for driving the alarm to send out an alarm signal when the steam boiler loses pressure. According to the invention, the pressure loss fault of the fuel oil steam boiler in the operation process can be effectively prevented, so that the safe operation of the steam boiler and the continuous production of steam are ensured.

Description

Technical Field

[0001] This utility model relates to the field of oil-fired steam boiler technology, specifically to a pressure loss alarm device for an oil-fired steam boiler. Background Technology

[0002] Insufficient diesel fuel injection dispersion during the operation of oil-fired steam boilers can lead to frequent combustion interruptions, affecting the continuity of high-temperature steam production. To address this issue, existing technologies typically involve installing a steam pressure gauge on the boiler's steam distribution cylinder. Dedicated personnel periodically monitor the gauge readings to assess the boiler's internal operating conditions and implement appropriate adjustments based on the assessment. While this technology effectively reduces the adverse effects of insufficient steam pressure caused by combustion interruptions, the risk of untimely monitoring and subsequent boiler combustion interruptions remains. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a pressure loss alarm device for an oil-fired steam boiler.

[0004] The technical solution adopted in this utility model is:

[0005] A pressure loss alarm device for an oil-fired steam boiler includes a steam distribution cylinder, a steam pressure gauge, a pressure switch, and an alarm. The steam distribution cylinder is connected to the oil-fired steam boiler via a steam delivery pipe. The steam distribution cylinder is equipped with a pressure tap, on which a steam pressure gauge and a pressure switch are installed. The steam pressure gauge is used to detect the steam pressure inside the steam distribution cylinder. The pressure switch is connected to the alarm via a wire, and is used to drive the alarm to issue an alarm signal via an electrical signal when the steam boiler loses pressure.

[0006] Furthermore, the steam pressure gauge is connected to the pressure tap via a buffer assembly, and the pressure switch is connected to the buffer assembly via the first pressure guide tube.

[0007] Furthermore, the buffer assembly includes a second pressure-conducting pipe and a pressure gauge buffer pipe. The second pressure-conducting pipe connects the steam pressure gauge and the pressure gauge buffer pipe. The other end of the pressure gauge buffer pipe is connected to a pressure tap. The pressure switch is connected to the first pressure-conducting pipe through the second pressure-conducting pipe.

[0008] Furthermore, a valve is provided at the root of the pressure gauge buffer tube, and the pressure gauge buffer tube is connected to the pressure tapping port through the valve.

[0009] Furthermore, the pressure gauge buffer tube is U-shaped or O-shaped.

[0010] Furthermore, the diameters of both the first and second pressure-conducting tubes are 6-10 mm.

[0011] Furthermore, the alarm is an audible alarm.

[0012] The beneficial effects of this utility model are:

[0013] 1. By using a combination of manual timed monitoring of the steam pressure gauge and pressure switch electrical signal-driven alarm, pressure loss faults can be effectively prevented during the operation of the oil-fired steam boiler, thereby ensuring the safe operation of the steam boiler and the continuous production of steam.

[0014] 2. This application uses a pressure switch to control the opening and closing of the alarm, which is simple and highly reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the pressure loss alarm device of this utility model.

[0016] Figure 2 This is a schematic diagram of the steam boiler of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred embodiment.

[0018] See Figure 1 and Figure 2 This application provides a pressure loss alarm device for an oil-fired steam boiler, including a steam distribution cylinder 3, a steam pressure gauge 7, a pressure switch 9, and an alarm 11. The steam distribution cylinder 3 is connected to the steam boiler 1 through a steam delivery pipe 2. The steam distribution cylinder 3 is provided with a pressure tap 4, and the steam pressure gauge 7 and the pressure switch 9 are installed on the pressure tap 4. The steam pressure gauge 7 is used to detect the steam pressure in the steam distribution cylinder 3. The pressure switch 9 is connected to the alarm 11 through a wire 10. The pressure switch 9 is used to drive the alarm 11 to issue an alarm signal when the steam boiler loses pressure.

[0019] The oil-fired steam boiler 1 mentioned in this application is a well-known technology in the art. It is a steam boiler that uses oil, such as diesel, as fuel. It is equipped with an oil injection pipe 12 and an ignition device 13 inside the boiler and can be horizontal or vertical. The high-temperature and high-pressure steam generated by the oil-fired steam boiler 1 is transported to the steam distribution cylinder 3 through the steam delivery pipe 2. The steam distribution cylinder 3 is prior art and is used to distribute the high-temperature and high-pressure steam generated by the boiler to various steam pipelines.

[0020] Both the steam pressure gauge 7 and the pressure switch 9 are common instruments in this field. The range of the steam pressure gauge is selected according to the steam pressure generated by the oil-fired steam boiler 1.

[0021] The pressure switch 9 is preferably an absolute steam pressure switch, which triggers the switch operation based on a set pressure threshold. The switch operation is triggered when the steam pressure reaches or exceeds the set value. The measurement range of the pressure switch 9 is compatible with that of the steam pressure gauge 7.

[0022] In this embodiment, the steam pressure gauge 7 is connected to the pressure tap 4 via a buffer assembly, and the pressure switch 9 is connected to the buffer assembly via a pressure guide tube. Specifically, the buffer assembly includes a second pressure guide tube 6 and a pressure gauge buffer tube 5. The second pressure guide tube 6 connects the steam pressure gauge 7 and the pressure gauge buffer tube 5, and the other end of the pressure gauge buffer tube 5 is connected to the pressure tap 4. The pressure switch 9 is connected to the first pressure guide tube 6 via the second pressure guide tube 8.

[0023] The pressure gauge buffer tube 5 effectively prevents moisture and impurities from entering the pressure gauge and pressure switch, ensuring the accuracy and stability of the steam pressure gauge 7 and pressure switch 9, and extending their service life. The pressure gauge buffer tube 5 can be a U-shaped tube or an O-shaped tube, as in this embodiment. Figure 1 As shown, the pressure gauge buffer tube 5 is preferably an O-ring, which provides better protection.

[0024] A valve (not shown in the figure) is preferably provided at the root of the pressure gauge buffer tube 5. The pressure gauge buffer tube is connected to the pressure tap through the valve. When the steam pressure gauge 7 and pressure switch 9 are repaired or replaced, the connection between them and the steam distribution cylinder is cut off by closing the valve to ensure maintenance safety.

[0025] Preferably, the diameters of the first pressure-conducting tube 6 and the second pressure-conducting tube 8 are both 6-10 mm to ensure the measurement accuracy of the steam pressure gauge 7 and the pressure switch 9.

[0026] The alarm 11 can be a conventional alarm signal device in the art, but in this application it is preferred to be an audible alarm, which is simple to control and low in cost.

[0027] The working principle of this application is:

[0028] When the fuel injection pipe 12 sprays evenly dispersed diesel fuel, the ignition device 13 ignites the diesel fuel, and the steam boiler 1 generates high-temperature and high-pressure steam. The high-temperature and high-pressure steam is transported to the distribution cylinder 3 through the steam delivery pipe 2. The steam in the distribution cylinder 3 enters the steam pressure gauge 7 through the pressure tap 4, the pressure gauge buffer pipe 5, and the first pressure guide pipe 6. At the same time, it enters the pressure switch 9 through the pressure tap 4, the pressure gauge buffer pipe 5, the first pressure guide pipe 6, and the second pressure guide pipe 8. The pressure switch 9 is in the open state and does not generate an electrical signal. The alarm 11 does not alarm. The operator can judge the operating status of the oil-fired steam boiler by periodically checking the pressure in the steam pressure gauge 7.

[0029] When the diesel fuel injected by the fuel injection pipe 12 is not evenly dispersed, the ignition device 13 cannot ignite the diesel fuel, the steam boiler 1 cannot continue to generate high-temperature steam, the gas distribution cylinder 3 is in a state of depressurization, and the value in the steam pressure gauge 7 returns to zero; at the same time, the pressure switch 9 will be in a closed state, the pressure switch 9 generates an electrical signal and transmits it to the alarm 11 through the wire 10, and the alarm 11 generates an alarm signal.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications are also within the protection scope of the present utility model.

Claims

1. A pressure loss alarm device for an oil-fired steam boiler, characterized in that, It includes a steam distribution cylinder (3), a steam pressure gauge (7), a pressure switch (9), and an alarm (11). The steam distribution cylinder (3) is connected to the oil-fired steam boiler (1) through a steam delivery pipe (2). The steam distribution cylinder (3) is provided with a pressure tap (4). The pressure tap (4) is equipped with a steam pressure gauge (7) and a pressure switch (9). The steam pressure gauge (7) is used to detect the steam pressure in the steam distribution cylinder (3). The pressure switch (9) is connected to the alarm (11) through a wire. The pressure switch (9) is used to drive the alarm (11) to issue an alarm signal through an electrical signal when the steam boiler loses pressure.

2. The pressure loss alarm device for an oil-fired steam boiler according to claim 1, characterized in that, The steam pressure gauge (7) is connected to the pressure tap (4) through the buffer assembly, and the pressure switch (9) is connected to the buffer assembly through the first pressure guide tube (8).

3. The pressure loss alarm device for an oil-fired steam boiler according to claim 2, characterized in that, The buffer assembly includes a second pressure guide tube (6) and a pressure gauge buffer tube (5). The second pressure guide tube (6) is connected to the steam pressure gauge (7) and the pressure gauge buffer tube (5). The other end of the pressure gauge buffer tube (5) is connected to the pressure tap (4). The pressure switch (9) is connected to the first pressure guide tube (6) through the second pressure guide tube (8).

4. The pressure loss alarm device for an oil-fired steam boiler according to claim 3, characterized in that, A valve is provided at the root of the pressure gauge buffer tube (5), and the pressure gauge buffer tube (5) is connected to the pressure tap (4) through the valve.

5. The pressure loss alarm device for an oil-fired steam boiler according to claim 3, characterized in that, The pressure gauge buffer tube (5) is U-shaped or O-shaped.

6. The pressure loss alarm device for an oil-fired steam boiler according to claim 3, characterized in that, The diameters of the first pressure guide tube (6) and the second pressure guide tube (8) are both 6-10 mm.

7. The pressure loss alarm device for an oil-fired steam boiler according to claim 1, characterized in that, The alarm (11) is an audible alarm.

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