Heating device for crude benzene distillation range detection in laboratory

Abstract

The utility model provides a heating device for detecting the distillation range of crude benzene in a laboratory, which comprises a combustion head provided with a gas spray hole and a gasification pipe arranged above the combustion head, the input end of the gasification pipe is communicated with a liquid storage bottle with a pump through a main liquid supply pipe, and the output end of the gasification pipe is connected with a gas inlet of the combustion head. The combustor is characterized in that a pre-combustion disc is arranged on the periphery of the combustion head, the pre-combustion disc is communicated with the liquid storage bottle with the pump through a secondary liquid supply pipe, and a gas pressurization assembly is arranged in the combustion head. The gasification pipe is firstly heated through heat energy generated by combustion of fuel on the pre-combustion disc, so that the gasification pipe has good gasification capacity in the initial combustion stage of the combustion head, the problem that the initial distillation time is difficult to control due to insufficient heat value in the initial stage is effectively solved, and the combustion rate is improved by arranging the fuel gas pressurization assembly in the combustion head; the distillation speed required by crude benzene distillation can be quickly achieved, and the accuracy of crude benzene distillation range detection is ensured.

Description

Technical Field

[0001] The utility model relates to a heating device, in particular to a heating device for laboratory crude benzene distillation range detection, belonging to the technical field of chemical detection. Background Art

[0002] Crude benzene is a valuable chemical raw material and an important chemical product that coking enterprises need to recycle. The composition of crude benzene fluctuates greatly. In addition to being related to the composition of coking coal and the degree of pyrolysis of coking products in the carbonization chamber, it is also related to the absorption and distillation operations. The amount of crude benzene distillate is not only an important indicator for the quality, yield, output, and evaluation of crude benzene, but also one of the important indicators for coking enterprises to balance coking coal and optimize coking operations. Therefore, the accuracy of crude benzene distillate testing is of great significance. At present, most quality inspection stations and laboratories of coal coking enterprises use alcohol lamps to heat crude benzene. There are the following problems in the heating process: First, the calorific value is not enough at the beginning of heating, which makes it difficult to control the initial distillation time; second, the use of alcohol lamps to heat and control the distillation rate is prone to instability, and it is difficult to achieve the required distillation rate; third, the heat loss is large, and the heat source and calorific value of the later distillation process cannot meet the experimental requirements, and the heating efficiency of alcohol lamps is low. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problems that the existing crude benzene distillation range detection uses alcohol lamps for heating, which leads to low calorific value, unstable distillation rate, large heat loss, etc., the utility model provides a heating device for laboratory crude benzene distillation range detection.

[0004] The utility model is completed by the following technical scheme: a heating device for laboratory crude benzene distillation range detection, comprising a burner head with a gas spray hole, a gasification pipe arranged above the burner head, the input end of the gasification pipe is connected with a liquid storage bottle with a pump through a main liquid supply pipe, and the output end of the gasification pipe is connected with the air inlet of the burner head, characterized in that a pre-combustion disk is arranged on the periphery of the burner head, the pre-combustion disk is connected with the liquid storage bottle with a pump through a secondary liquid supply pipe, and a gas booster assembly is arranged in the burner head, so that the pre-heating liquid fuel is first fed into the pre-combustion disk through the secondary liquid supply pipe and then After combustion, the upper vaporization tube is heated, and then liquid fuel is sent to the heated vaporization tube through the main liquid supply tube, so that the liquid fuel is vaporized into gaseous fuel, and then sent to the combustion head through the air inlet and the gas booster component for combustion. This enables the combustion head to have good vaporization ability in the initial combustion stage, and effectively solves the problem of difficulty in controlling the initial distillation time due to insufficient calorific value in the initial stage. By arranging a gas booster component in the combustion head to increase the combustion rate, the distillation rate required for crude benzene distillation can be quickly achieved, ensuring the accuracy of crude benzene distillation range detection.

[0005] The gas spray hole is arranged at the upper part of the burner head. The top of the burner head is an open combustion chamber. The middle part is provided with a gas chamber connecting the gas spray hole and the air inlet. A plurality of ventilation holes are arranged at intervals on the wall of the gas chamber to ensure that the air and the gas can be fully mixed through the ventilation holes.

[0006] The gasification tube is configured as a hollow spiral coil, which is located above the top of the burner head. The burner head is located at the center of the gasification tube so that the flame generated by the combustion of the burner head extends upward through the hollow part of the gasification tube, thereby providing continuous heating heat energy for the crude benzene distillation process above, and at the same time heating the gasification tube to continuously complete the gasification of the liquid fuel.

[0007] The input end of the main liquid supply pipe is connected to the first port of the three-way valve arranged at the output end of the liquid storage bottle with pump, so as to transport the fuel in the liquid storage bottle to the gasification pipe for gasification through the main liquid supply pipe.

[0008] The pre-combustion disk is configured as a circular disk with an open top, which is sleeved on the burner head through a through hole at the center and is located below the gas nozzle. A liquid inlet is provided at the bottom of the pre-combustion disk, one end of a secondary liquid supply pipe is connected to the liquid inlet, and the other end is connected to the second way of a three-way valve provided at the output end of a liquid storage bottle with a pump, so that the liquid fuel in the liquid storage bottle can be delivered to the pre-combustion disk through the secondary liquid supply pipe, and the gasification tube above can be heated after ignition.

[0009] The gas booster assembly is arranged at the lower part of the gas chamber of the burner head, which is a conical cap with a small upper part and a large lower part. Below the conical cap is a conical chamber with a small upper part and a large lower part. A conical diffusion hole with a large upper part and a small lower part is provided on the top of the conical cap. The conical diffusion hole is connected with the conical chamber, and the conical chamber is connected with the air inlet, so that the gas beam can be pressurized and quickly enter the gas chamber through the cooperation of the conical chamber and the conical diffusion hole, and then be sprayed out and burned through the gas spray hole, thereby ensuring the combustion fire power to meet the requirements of the crude benzene distillation range.

[0010] The main liquid supply pipe and the secondary liquid supply pipe are both provided with regulating valves, which are respectively used to adjust the flow of liquid fuel to meet the requirements of crude benzene distillation range.

[0011] The utility model has the following advantages and effects: by adopting the above scheme, the heat energy generated by the combustion of fuel on the pre-combustion disk is first used to heat the gasification tube, so that the gasification tube has good gasification ability in the initial combustion stage of the combustion head, and effectively solves the problem of difficulty in controlling the initial distillation time due to insufficient calorific value in the initial stage. By setting a gas booster component in the combustion head to increase the combustion rate, the distillation rate required for crude benzene distillation can be quickly achieved, ensuring the accuracy of crude benzene distillation range detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the combustion head of the utility model. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0015] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] The utility model provides a heating device for laboratory crude benzene distillation range detection, comprising a combustion head 2 with a gas spray hole 11, a gasification pipe 3 arranged above the combustion head 2, the input end of the gasification pipe 3 is connected with a liquid storage bottle 7 with a pump 9 through a main liquid supply pipe 5, the output end of the gasification pipe 3 is connected with an air inlet 15 of the combustion head 2, a pre-combustion disk 4 is arranged on the periphery of the combustion head 2, the pre-combustion disk 4 is connected with the liquid storage bottle 7 with a pump 9 through a secondary liquid supply pipe 6, and a gas booster assembly is arranged in the combustion head 2, so that the pre-heating liquid fuel is first fed into the pre-combustion disk 4 through the secondary liquid supply pipe 6 and then fed into the pre-combustion disk 4. After combustion, the upper gasification pipe 3 is heated, and then liquid fuel is fed into the heated gasification pipe 3 through the main liquid supply pipe 5, so that the liquid fuel is gasified into gaseous fuel, and then fed into the combustion head 2 through the air inlet 15 and the gas booster assembly for combustion, so that the combustion head 2 has good gasification ability in the initial combustion stage, and effectively solves the problem of difficulty in controlling the initial distillation time due to insufficient calorific value in the initial stage. By arranging a gas booster assembly in the combustion head 2 to improve the combustion rate, the distillation rate required for crude benzene distillation can be quickly reached, ensuring the accuracy of crude benzene distillation range detection;

[0018] The gas spray hole 11 is arranged on the upper part of the burner head 2. The top of the burner head 2 is an open combustion chamber. The middle part is provided with a gas chamber 10 which connects the gas spray hole 11 and the air inlet 15. A plurality of vent holes 1 are arranged at intervals on the wall of the gas chamber 10 so as to ensure that the air and the gas can be fully mixed through the vent holes 1.

[0019] The gasification tube 3 is a hollow spiral coil located above the top of the burner head 2. The burner head 2 is located at the center of the gasification tube 3, so that the flame generated by the combustion of the burner head 2 passes through the hollow part of the gasification tube 3 and extends upward, thereby providing continuous heating heat energy for the crude benzene distillation process above, and at the same time heating the gasification tube 3 to continuously complete the gasification of the liquid fuel;

[0020] The pre-combustion disk 4 is set as a circular disk with an open top, which is sleeved on the combustion head 2 through a through hole at the center and is located below the gas nozzle 11. A liquid inlet 12 is provided at the bottom of the pre-combustion disk 4. One end of a secondary liquid supply pipe 6 is connected to the liquid inlet 12, and the other end is connected to the second pass of a three-way valve 8 provided at the output end of a liquid storage bottle 7 with a pump 9, so that the liquid fuel in the liquid storage bottle 7 is delivered to the pre-combustion disk 4 through the secondary liquid supply pipe 6, and the gasification pipe 3 above can be heated after being ignited;

[0021] The gas booster assembly is arranged at the lower part of the gas chamber 10 of the burner head 2, which is a conical cap 13 with a small top and a large bottom. Below the conical cap 13 is a conical chamber 14 with a small top and a large bottom. The top of the conical cap 13 is provided with a conical diffusion hole 16 with a large top and a small bottom. The conical diffusion hole 16 is connected to the conical chamber 14, and the conical chamber 14 is connected to the air inlet 15, so that the gas beam can be pressurized and quickly enter the gas chamber 10 through the cooperation of the conical chamber 14 and the conical diffusion hole 16, and then sprayed out and burned through the gas spray hole 11, so as to ensure the combustion firepower to meet the requirements of the crude benzene distillation range;

[0022] The input end of the main liquid supply pipe 5 is connected to the first port of the three-way valve 8 provided at the output end of the liquid storage bottle 7 with a pump, so that the fuel in the liquid storage bottle 7 is transported to the gasification pipe 3 through the main liquid supply pipe 5 for gasification;

[0023] The main liquid supply pipe 5 and the secondary liquid supply pipe 6 are both provided with regulating valves, which are respectively used to adjust the flow rate of liquid fuel to meet the requirements of crude benzene distillation range.

Claims

1. A heating device for laboratory crude benzene distillation range detection, comprising a burner head with a gas spray hole, a gasification tube arranged above the burner head, the input end of the gasification tube is connected to a liquid storage bottle with a pump through a main liquid supply pipe, and the output end of the gasification tube is connected to the air inlet of the burner head, characterized in that A pre-combustion disk is arranged on the periphery of the combustion head, and the pre-combustion disk is connected with a liquid storage bottle with a pump through a secondary liquid supply pipe. A gas booster component is arranged in the combustion head.

2. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The gas spray hole is arranged at the upper part of the burner head. The top of the burner head is an open combustion chamber. The middle part is provided with a gas chamber connecting the gas spray hole and the air inlet. A plurality of ventilation holes are arranged at intervals on the wall of the gas chamber.

3. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The gasification tube is configured as a hollow spiral coil tube, which is located above the top of the burner head, and the burner head is located at the center of the gasification tube.

4. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The input end of the main liquid supply pipe is connected to the first port of a three-way valve arranged at the output end of the liquid storage bottle with a pump.

5. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The pre-combustion disk is set as a circular disk with an open top, which is sleeved on the burner head through a through hole at the center and is located below the gas spray hole. A liquid inlet is set at the bottom of the pre-combustion disk, one end of the secondary liquid supply pipe is connected to the liquid inlet, and the other end is connected to the second way of the three-way valve arranged at the output end of the liquid storage bottle with a pump.

6. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The gas booster assembly is arranged at the lower part of the gas chamber of the burner head. It is a conical cap that is small at the top and large at the bottom. Below the conical cap is a conical cavity that is small at the top and large at the bottom. A conical diffusion hole that is large at the top and small at the bottom is provided on the top of the conical cap. The conical diffusion hole is connected to the conical cavity, and the conical cavity is connected to the air inlet.

7. The heating device for detecting the distillation range of crude benzene in the laboratory according to claim 1, characterized in that The main liquid supply pipe and the secondary liquid supply pipe are both provided with regulating valves.

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