CN204705039U - A kind of coal burning organic heating medium furnace - Google Patents

Abstract

The utility model discloses a coal-fired organic heat carrier furnace, which comprises a furnace body, a smoke collecting hood and a blower; the furnace body is provided with a slag chamber, a combustion chamber, a radiation coil section, a convection coil section and an energy saver; The top of the combustion chamber communicates with the flue; the radiant coil section is arranged above the combustion chamber; the convection coil section is arranged above the radiant coil section; the economizer is arranged below the smoke hood; A smoke pipe is connected to the smoke collecting hood, and a heat exchange tube is set on the smoke tube. The other end of the pipe communicates with the slag chamber. The built-in radiant coil section and convection coil section absorb heat from the flue gas, and separate the large heat exchange pipe as a whole, which is convenient for transportation, installation and replacement; the flue gas discharged from the upper furnace body enters the flue pipe and heats up with the heat exchange tube. Heat exchange makes full use of the heat in the flue gas, saves energy and achieves better utilization.

Description

A coal-fired organic heat carrier furnace

technical field

The utility model relates to an organic heat carrier furnace, in particular to a coal-fired organic heat carrier furnace.

Background technique

At present, most of the existing organic heat carrier furnaces are fueled by non-renewable resources such as gasoline and coal. The interior of the furnace uses a large-scale disc tube structure as the radiation section and convection section of the boiler. It uses multi-layer disc tubes. The circle is the radiation section, and the outer circle is the convection section. The resistance of the flue gas to pass through is large, and the large-diameter circular coil structure is difficult to manufacture, which increases the manufacturing cost of the boiler. The structural size of the large-diameter circular coil structure is large. , leading to high transportation costs and difficulty in on-site installation; on the other hand, the exhaust gas of the boiler carries a large amount of heat energy. If it is not properly utilized, the flue gas will affect the atmosphere and the surrounding environment.

Utility model content

The purpose of the utility model is to provide a coal-fired organic heat carrier furnace that is convenient for transportation, installation and replacement, and saves energy, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A coal-fired organic heat carrier furnace, comprising a furnace body, a smoke collecting hood and a blower; the furnace body is provided with a slag chamber, a combustion chamber, a radiation coil section, a convection coil section and an economizer; the slag chamber and the combustion There is a support net between the chambers, and a furnace door is opened on the combustion chamber; the top of the combustion chamber communicates with the flue, and the flue extends upward to the top of the furnace body and communicates with the smoke hood; the radiant coil section Set above the combustion chamber, the radiant coil section is coiled on the flue from bottom to top. The lower end of the radiant coil section is provided with a first oil inlet pipe, and the upper end is provided with a first oil outlet pipe; Above the convection coil section, the convection coil section is a steel pipe with a serpentine structure, the lower end of the convection coil section is connected with a second oil inlet pipe, and the upper end is connected with a second oil outlet pipe; the economizer is arranged below the smoke collecting hood; There is a smoke pipe connected to the fume collecting hood, and the smoke pipe is arranged on the outside of the furnace body. A heat exchange cylinder is set on the smoke pipe, and a communication pipe is connected to the upper end of the cavity inside the heat exchange cylinder, and the communication pipe is arranged on the blower. , the lower end of the cavity inside the heat exchange tube is connected to the blast pipe, and the other end of the blast pipe is connected to the slag chamber.

Further: the inner diameter of the heat exchange cylinder is the same as the diameter of the smoke pipe.

Further: the blower is provided with an air inlet, and the air inlet is covered with a filter.

Further: the end of the smoke pipe is connected to a smoke outlet pipe, and a purification device is provided on the smoke outlet pipe.

Compared with the prior art, the beneficial effect of the utility model is: the built-in radiation coil section and the convection coil section absorb heat from the flue gas, and since the two sections adopt different structures, the overall large-scale heat exchange pipe is separated, It is convenient for transportation, installation and replacement, and reduces production costs; the flue gas discharged from the upper furnace body enters the flue pipe and exchanges heat with the heat exchange cylinder. The air entering the heat exchange cylinder is preheated, and finally the air is passed into the combustion chamber. Make full use of the heat in the flue gas, save energy, and achieve better utilization. The end of the smoke pipe is equipped with an exhaust gas purification device to reduce the impact on the environment during the production process and make it more environmentally friendly.

Description of drawings

Fig. 1 is a schematic structural diagram of a coal-fired organic heat carrier furnace.

In the figure: 1-furnace body, 2-combustion chamber, 3-radiant coil section, 4-convection coil section, 5-energy saver, 6-fume collecting hood, 7-smoke pipe, 8-heat exchange tube, 9 -Blower, 10-Blast pipe, 11-Outlet pipe, 12-Inlet, 13-Furnace door, 14-First oil inlet pipe, 15-First oil outlet pipe, 16-Second oil inlet pipe, 17-No. Two oil outlet pipes, 18-communicating pipe, 19-slag chamber.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to the figure, in the embodiment of the utility model, a coal-fired organic heat carrier furnace includes a furnace body 1, a smoke collecting hood 6 and a blower 9; the furnace body 1 is provided with a slag chamber 19, a combustion chamber 2, a radiation coil section 3, convection coil section 4 and economizer 5; a support net is provided between the slag chamber 19 and the combustion chamber 2, and a furnace door 13 is opened on the combustion chamber 2, and the combustion chamber entering the combustion chamber 2 The coal is on the support net, and the burned coal-fired slag falls into the slag chamber 19 through the support net, and is collected and processed in the slag chamber 19; the top of the combustion chamber 2 communicates with the flue, and the flue extends upward to the bottom of the furnace The top, and communicated with the smoke collection hood 6; the radiant coil section 3 is set above the combustion chamber 2, the radiant coil section 3 is coiled on the flue from bottom to top, and the lower end of the radiant coil section 3 is provided with a first oil inlet pipe 14, the upper end is provided with a first oil outlet pipe 15; the convection coil section 4 is arranged above the radiation coil section 3, the convection coil section 4 is a steel pipe with a serpentine structure, and the convection coil section 4 is a Known common sense, the lower end of the convection coil section 4 is connected with the second oil inlet pipe 16, and the upper end is connected with the second oil outlet pipe 17. The oil pipe 17 flows out, and then connects to the first oil inlet pipe 14, and finally flows out from the first oil outlet pipe 15, and enters the heating device; the economizer 5 is arranged under the smoke collecting hood 6 to absorb part of the heat in the flue gas ; The smoke collecting hood 6 is connected with a smoke pipe 7, the smoke pipe 7 is arranged on the outside of the furnace body 1, and a heat exchange cylinder 8 is set on the smoke pipe 7, and the inner diameter of the heat exchange cylinder 8 is the same as that of the smoke pipe 7. The diameters are the same, so that the heat exchange cylinder 8 is in contact with the smoke pipe 7 for heat exchange. The upper end of the cavity inside the heat exchange cylinder 8 is connected with a communication pipe 18. The communication pipe 18 is arranged on the blower 9, and the blower 9 is provided with The air inlet 12 is covered with a filter screen, and the lower end of the cavity inside the heat exchange cylinder 8 is connected to the air blast pipe 10, and the other end of the air blast pipe 10 is connected to the slag chamber 19, and through the slag chamber 19 The internal blast air provides sufficient oxygen for the combustion of coal; the end of the smoke pipe 7 is connected to the smoke pipe 11, and the smoke pipe 11 is provided with a purification device for evolution treatment of the flue gas.

The working principle of the utility model is: the heat generated during combustion of the coal loaded in the combustion chamber 2 enters the area of the radiant coil section 3 through the flue, and the oil in the radiant coil section 3 exchanges heat. The coil section 3 is closer to the combustion chamber 2, and provides more heat, which bears most of the heat exchange. The convection coil section 4 located above absorbs heat from the flue gas again, and the heat absorbed by this part of the oil is used as the lower part of the heat. The oil has a preheating effect on the main heat exchange part. Since the two sections adopt different structures, the overall large heat exchange pipe is separated, which is convenient for transportation, installation and replacement, and reduces production costs; the flue gas discharged from the upper furnace body 1 Enter the smoke pipe 7, and exchange heat with the heat exchange cylinder 8, the air entering the heat exchange cylinder 8 is preheated, and finally the air is passed into the combustion chamber 2, so that the heat in the flue gas can be fully utilized, saving energy, To achieve a better utilization rate, the end of the smoke pipe 7 is provided with an exhaust gas purification device, which reduces the impact on the environment during the production process and makes it more environmentally friendly.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (4)

1. A coal-fired organic heat carrier furnace, comprising a furnace body (1), a smoke collecting hood (6) and a blower (9); it is characterized in that: the furnace body (1) is provided with a slag chamber (19), Combustion chamber (2), radiant coil section (3), convection coil section (4) and economizer (5); a support net is provided between the slag chamber (19) and the combustion chamber (2). There is a furnace door (13) on the chamber (2); the top of the combustion chamber (2) communicates with the flue, and the flue extends upward to the top of the furnace body (1) and communicates with the smoke hood (6); The radiant coil section (3) is set above the combustion chamber (2), the radiant coil section (3) is coiled on the flue from bottom to top, and the lower end of the radiant coil section (3) is provided with a first oil inlet pipe (14) , the upper end is provided with a first oil outlet pipe (15); the convection coil section (4) is arranged above the radiation coil section (3), the convection coil section (4) is a steel pipe with a serpentine structure, and the convection coil The lower end of the pipe section (4) is connected with the second oil inlet pipe (16), and the upper end is connected with the second oil outlet pipe (17); the economizer (5) is arranged under the smoke collecting hood (6); the smoke collecting The cover (6) is connected with a smoke pipe (7), and the smoke pipe (7) is arranged on the outside of the furnace body (1), and a heat exchange cylinder (8) is set on the smoke pipe (7). 8) The upper end of the inner cavity is connected with a connecting pipe (18), and the connecting pipe (18) is arranged on the blower (9), and the lower end of the cavity inside the heat exchange cylinder (8) is connected with the blowing pipe (10). The other end of the pipe (10) communicates in the slag chamber (19). 2. A coal-fired organic heat carrier furnace according to claim 1, characterized in that: the inner diameter of the heat exchange cylinder (8) is the same as the diameter of the smoke pipe (7). 3. A coal-fired organic heat carrier furnace according to claim 1, characterized in that: the blower (9) is provided with an air inlet (12), and the air inlet (12) is covered with a filter. 4. A coal-fired organic heat carrier furnace according to claim 1, characterized in that: the end of the smoke pipe (7) is connected to the smoke outlet pipe (11), and the smoke outlet pipe (11) is provided with a purification device.