Oil and gas fired heat-conducting oil boiler

Abstract

The utility model belongs to an oil-gas-fired heat-conducting oil boiler which comprises a horizontal boiler shell, a spiral pipe is arranged in the boiler shell, an oil inlet pipe and an oil outlet pipe which extend out of the boiler shell are arranged at the two ends of the spiral pipe respectively, a burner is arranged at one end of the boiler shell, and a boiler furnace connected with the burner is arranged in the boiler shell. A circle of smoke pipes are arranged on the furnace pipe along the axis in an array mode, the tail ends of all the smoke pipes are connected with an exhaust pipe extending out of the furnace shell, and a filtering assembly is arranged on the exhaust pipe. Compared with the prior art, the oil and gas fired heat-conducting oil boiler has the advantages that through the optimized design, the combustion efficiency and the heat utilization rate are remarkably improved, and the energy consumption and the emission are reduced. Structural reinforcement and convenient maintenance design prolong the service life of equipment and improve operation safety. The whole scheme is environment-friendly and efficient, conforms to the green development trend, and has remarkable market application and environmental protection benefits.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, and specifically relates to a fuel oil / gas-fired thermal oil boiler. Background Technology

[0002] As crucial heat energy supply equipment in industrial production, the optimization and improvement of the performance of oil and gas boilers has always been a key focus of the industry. Traditional oil and gas boilers commonly found in the market often face the problem of incomplete flame development during operation. This not only limits the improvement of combustion efficiency but may also lead to incomplete combustion, producing harmful emissions and causing adverse environmental impacts. Poor flame shape often stems from improper airflow control during combustion, and these issues limit the improvement of boiler thermal efficiency.

[0003] Furthermore, the flow pattern of high-temperature flue gas in traditional boilers also has significant drawbacks. The high-temperature flue gas generated during combustion often directly washes against the furnace wall or base tube sheet. This direct heat transfer method easily leads to localized overheating, causing damage to boiler components and shortening the equipment's lifespan. Simultaneously, due to an unreasonable flue gas flow design, the residence time of the flue gas within the boiler is insufficient, preventing the full utilization of heat. This not only results in energy waste but also leads to excessively high exhaust gas temperatures, further reducing the boiler's thermal efficiency. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides an oil-fired or gas-fired thermal oil boiler to solve the aforementioned problems.

[0005] This utility model discloses an oil-fired or gas-fired thermal oil boiler, comprising a horizontal furnace shell, a spiral coil installed inside the furnace shell, an oil inlet pipe and an oil outlet pipe extending out of the furnace shell at both ends of the spiral coil, a burner installed at one end of the furnace shell, a furnace chamber connected to the burner installed inside the furnace shell, a ring of flue pipes arranged in an array along the axis of the furnace chamber, and an exhaust pipe extending out of the furnace shell connected to the end of all the flue pipes, with a filter assembly installed on the exhaust pipe.

[0006] Furthermore, the furnace liner is provided with a flared end near the burner and a semi-circular end at the other end.

[0007] Preferably, the furnace liner is a corrugated furnace liner.

[0008] Furthermore, an inspection port is provided at one end of the furnace shell, an inspection door is provided at the inspection port, and a lock is provided between the inspection door and the inspection port.

[0009] Furthermore, a heat-insulating and refractory layer is provided inside the furnace shell.

[0010] Further, the furnace shell is provided with a plurality of interfaces, the interfaces include pressure gauge interface, thermometer interface.

[0011] Preferably, the filter assembly is an oil fume filter.

[0012] Further, the top of the furnace shell is provided with a maintenance rack, and the maintenance rack is provided with a ladder.

[0013] Compared with the prior art, the fuel oil and gas heat conducting oil boiler is optimized in design, combustion efficiency and heat utilization rate are significantly improved, energy consumption and emission are reduced, the structure is strengthened, convenient maintenance design prolongs the service life of the equipment, and the operation safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a left view of the utility model;

[0017] Figure 4 It is a left view of the utility model.

[0018] In the drawing: 1, furnace shell; 2, spiral coil; 3, oil inlet pipe; 4, oil outlet pipe; 5, burner; 6, furnace; 7, smoke pipe; 8, exhaust pipe; 9, filter assembly; 10, access door; 11, maintenance rack; 12, ladder; 13, connecting flange. DETAILED DESCRIPTION

[0019] In order to better understand the utility model, the following will be combined with Figures 1 to 4 The embodiments of the utility model are explained in detail.

[0020] It should be noted that the "front, rear, left, right, upper and lower" directions in the article are based on the "front, rear, left, right, upper and lower" directions in the drawing. Figure 1

[0021] The utility model relates to a kind of fuel oil and gas heat conducting oil boiler, including a horizontal furnace shell 1.The furnace shell 1 inside is equipped with spiral coil 2, the two ends of this spiral coil 2 are connected with the oil inlet pipe 3 and the oil outlet pipe 4 that extend out of furnace shell 1, for the circulation of heat conducting oil.The one end of furnace shell 1 is equipped with burner 5, and this burner 5 is responsible for providing the fuel oil or gas required for combustion to generate high-temperature flue gas.

[0022] ​Inside the furnace shell 1, a furnace drum 6 is also provided, which is connected with the burner 5 through a connecting flange 13. The design of the furnace drum 6 is very critical, which not only plays a role in guiding the high-temperature flue gas, but also optimizes the flow path of the flue gas. As shown in Figure 2 the furnace drum 6 is designed as a horn mouth near the burner 5 and a semicircular end at the other end, which can further optimize the flame shape and improve the combustion efficiency. A circle of smoke pipes 7 is arranged on the furnace drum 6 along the axis, which enables the high-temperature flue gas to flow fully in the furnace shell 1, increases the residence time of the flue gas, and thus improves the heat utilization rate. The ends of all the smoke pipes 7 are connected with an exhaust pipe 8 extending out of the furnace shell 1, which is used for discharging the treated flue gas. A filtering assembly 9 is also provided on the exhaust pipe 8, which can effectively filter out harmful substances in the flue gas and protect the environment.

[0023] A maintenance opening is provided at one end of the furnace shell 1, and is equipped with a maintenance door 10 and a lock. This facilitates regular maintenance and repair of the boiler by the staff, ensuring the normal operation of the boiler.

[0024] In addition, a maintenance rack 11 is also provided on the top of the furnace shell 1, and a crawling ladder 12 is installed on the maintenance rack 11, which facilitates the staff to carry out high-altitude operation. The furnace drum 6 adopts a corrugated furnace drum design, which can enhance the strength and heat resistance of the furnace drum 6 and prolong the service life of the boiler.

[0025] Inside the furnace shell 1, a layer of heat-insulating refractory layer is also provided, which can effectively insulate the direct heat transfer of the high-temperature flue gas to the furnace shell 1, preventing the furnace shell 1 from overheating and being damaged. A plurality of interfaces are also provided on the furnace shell 1, including a pressure gauge interface and a thermometer interface, which can monitor the running state of the boiler in real time, ensuring the safe operation of the boiler.

[0026] In terms of the filtering assembly 9, the oil fume filter is adopted, which can effectively filter out oil fume particles in the flue gas and reduce environmental pollution.

[0027] The use mode and principle of the utility model are as follows:

[0028] Firstly, the burner 5 is started, and fuel oil or gas is sent into the furnace drum 6 for combustion to generate high-temperature flue gas, so that the furnace temperature reaches the expected temperature. Then, the heat-conducting oil is injected into the spiral coil 2 through the oil inlet pipe 3, and the high-temperature flue gas flows in the furnace drum 6 and the smoke pipe 7 to transfer heat to the heat-conducting oil in the spiral coil 2. After being heated, the heat-conducting oil flows out through the oil outlet pipe 4 and is used for heating or cooling in industrial production. At the same time, the flue gas treated by the filtering assembly 9 is discharged into the atmosphere through the exhaust pipe 8. In the use process, the running state of the boiler can be monitored in real time through the pressure gauge and the thermometer, ensuring the safe and efficient operation of the boiler. When maintenance and repair are needed, the boiler can be operated through the maintenance opening and the maintenance door 10.

[0029] In the description of the utility model, need understanding is, the orientation or position relation that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" indicate is based on the orientation or position relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element that is indicated must have a particular orientation, construct and operate with a particular orientation, therefore can not be understood as the restriction of the utility model. In the description of the utility model, unless otherwise specified and limited, need to be explained, the terms "mount", "connect", "connect" should be understood broadly, for example, can be mechanical connection or electrical connection, also can be the intercommunication of two elements, can be directly connected, also can be indirectly connected through intermediate medium, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fuel oil / gas-fired thermal oil boiler, comprising a horizontal furnace shell (1), characterized in that: The furnace shell (1) is provided with a spiral coil (2). The two ends of the spiral coil (2) are respectively provided with an oil inlet pipe (3) and an oil outlet pipe (4) extending out of the furnace shell (1). One end of the furnace shell (1) is provided with a burner (5). The furnace shell (1) is provided with a furnace chamber (6) connected to the burner (5). A ring of smoke pipes (7) is arranged along the axis on the furnace chamber (6). The end of all the smoke pipes (7) is connected to an exhaust pipe (8) extending out of the furnace shell (1). A filter assembly (9) is provided on the exhaust pipe (8).

2. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: The furnace liner (6) has a flared end near the burner (5) and a semi-circular end at the other end.

3. The oil / gas-fired thermal oil boiler as described in claim 2, characterized in that: The furnace liner (6) is a corrugated furnace liner.

4. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: An inspection port is provided at one end of the furnace shell (1), and an inspection door (10) is provided at the inspection port. A lock is provided between the inspection door (10) and the inspection port.

5. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: The furnace shell (1) is provided with a heat-insulating and refractory layer.

6. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: A pressure gauge and a thermometer are installed on the furnace shell (1).

7. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: The filter component (9) is an oil fume filter.

8. The oil / gas-fired thermal oil boiler as described in claim 1, characterized in that: A maintenance frame (11) is provided on the top of the furnace shell (1), and a ladder (12) is provided on the maintenance frame (11).

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