Horizontal fuel gas organic heat transfer material furnace
By connecting the spiral radiant tubes and convection tubes arranged at intervals inside and outside, as well as the intermediate oil collecting tube in series, the problems of large temperature difference and difficult maintenance of heat transfer oil in horizontal gas-fired organic heat carrier furnace are solved, achieving temperature consistency and efficient utilization.
Patent Information
- Application Number
- CN202422625395.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional horizontal gas-fired organic heat carrier furnaces suffer from problems such as large temperature difference at the heat transfer oil outlet, short service life, and low utilization rate of the coil heating surface, and are difficult to drain during maintenance.
The system employs spiral radiant tubes and convection tubes arranged at intervals, connected in series via an intermediate oil collecting pipe. Combined with a purge pipe at the top of the intermediate oil collecting pipe and a compressed air pump, it achieves consistent heat transfer oil temperature and facilitates maintenance.
It achieves consistent outlet temperature of heat transfer oil, extends service life, improves the utilization efficiency of the coil heating surface, and simplifies the maintenance process.
Smart Images
Figure CN223580236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an organic heat carrier furnace for heat exchange, and more particularly to a horizontal gas-fired organic heat carrier furnace that uses combustible gases such as natural gas and coal gas as fuel, belonging to the field of industrial boiler technology. Background Technology
[0002] Currently, organic heat carrier furnaces of various structures are widely used in the petroleum, chemical fiber, and other fields for heating, drying, or softening materials. Furthermore, with increasingly stringent national environmental protection requirements, organic heat carrier furnaces using clean combustible gases such as natural gas and coal gas as fuel, especially horizontal gas-fired organic heat carrier furnaces, are gaining popularity due to their ease of manufacture and other advantages. However, traditional horizontal gas-fired organic heat carrier furnaces use a parallel coil structure. This type of furnace suffers from drawbacks such as a large temperature difference at the heat transfer oil outlet, short service life of the heat transfer oil, low utilization rate of the coil heating surface, and difficulty in draining oil during maintenance. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a horizontal gas-fired organic heat carrier furnace that can keep the outlet temperature of the heat transfer oil consistent, prevent large temperature differences, extend the service life of the heat transfer oil, improve the utilization efficiency of the coil heating surface, and has a simple structure.
[0004] To solve the above-mentioned technical problems, this utility model adopts a horizontal gas-fired organic heat carrier furnace, including a cylindrical shell, a coil assembly, a burner, an oil inlet manifold, and an oil outlet manifold. A refractory through hole is provided at the rear end of the shell. The burner is installed at the rear end of the shell and the combustion port of the burner is connected to the refractory through hole. The oil inlet manifold and the oil outlet manifold are located on the outer side of the front end of the shell. The coil assembly includes at least one spiral radiant tube and at least one spiral convection tube. The radiant tube and the convection tube are installed in the shell at intervals from the inside to the outside. The horizontal gas-fired organic heat carrier furnace also includes an intermediate oil collection pipe. The intermediate oil collection pipe is located on the outer side of the rear end of the shell. The oil inlet of the convection tube is connected to the oil inlet manifold, the oil outlet of the convection tube is connected to the intermediate oil collection pipe, the oil inlet of the radiant tube is connected to the intermediate oil collection pipe, and the oil outlet of the radiant tube is connected to the oil outlet manifold.
[0005] In a preferred embodiment of the present invention, the horizontal gas-fired organic heat carrier furnace further includes a first connecting pipe and a second connecting pipe. The oil outlet of the convection pipe is connected to the intermediate oil collecting pipe through the first connecting pipe, and the oil inlet of the radiation pipe is connected to the intermediate oil collecting pipe through the second connecting pipe.
[0006] In a preferred embodiment of this utility model, at least one purge pipe is provided at the top of the intermediate oil collecting pipe. One end of the purge pipe is connected to the inner cavity of the intermediate oil collecting pipe, and the other end of the purge pipe is connected to a compressed air pump through a pipeline and a shut-off valve.
[0007] By adopting the above structure, this utility model has the following beneficial effects:
[0008] The coil assembly of this invention includes at least one spiral radiant tube and at least one spiral convection tube. The radiant and convection tubes are installed in the housing at intervals from the inside out. This invention also includes an intermediate oil collecting pipe, located on the outer rear end of the housing. The oil inlet of the convection tube is connected to the oil inlet manifold, and the oil outlet of the convection tube is connected to the intermediate oil collecting pipe. The oil inlet of the radiant tube is connected to the intermediate oil collecting pipe, and the oil outlet of the radiant tube is connected to the oil outlet manifold. In other words, this invention uses radiant and convection tubes arranged at intervals and connected in series through the intermediate oil collecting pipe. During operation, the outlet temperature of the heat transfer oil remains consistent, preventing large temperature differences and significantly extending the service life of the heat transfer oil.
[0009] This invention employs radiant tubes and convection tubes arranged at intervals and connected in series via an intermediate oil collection pipe. During operation, this invention fully utilizes the inner and outer heating areas of the convection tubes, greatly improving the utilization efficiency of the coil's heating surface and resulting in greater energy savings and reduced consumption.
[0010] This invention features a purge pipe installed at the top of the intermediate oil collecting pipe. One end of the purge pipe is connected to the inner cavity of the intermediate oil collecting pipe, and the other end is connected to a compressed air pump via a pipeline. This allows compressed air to be used to purge the inner cavity of the intermediate oil collecting pipe during maintenance, thus solving the problem of difficult oil drainage during maintenance of horizontal gas-fired organic heat carrier furnaces.
[0011] This utility model has a simple structure, is easy to manufacture, and is convenient to promote and use. Attached Figure Description
[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0013] Figure 1 This is a schematic diagram of the structure of a horizontal gas-fired organic heat carrier furnace according to this utility model. Detailed Implementation
[0014] See Figure 1The diagram shows a horizontal gas-fired organic heat carrier furnace, comprising a cylindrical shell 1, a coil assembly 2, a burner 3, an oil inlet manifold 4, and an oil outlet manifold 5. A refractory through-hole 1-1 is provided at the rear end of the shell 1, and a flue gas outlet 1-2 is provided at the top front end of the shell 1. The burner 3 is installed at the rear end of the shell 1, and its combustion port is connected to the refractory through-hole 1-1. The oil inlet manifold 4 and the oil outlet manifold 5 are located outside the front end of the shell 1. The coil assembly 2 includes at least one spiral radiant tube 2-1 and at least one spiral convection tube 2-2. Only one radiant tube 2-1 and one convection tube 2-2 are shown. The radiant tube 2-1 and the convection tube 2-2 are installed alternately from the inside to the outside within the shell 1. This horizontal gas-fired organic heat carrier furnace also includes an intermediate oil collecting pipe 6, which is located on the outer side of the rear end of the shell 1. The oil inlet 2a of the convection tube 2-2 is connected to the oil inlet manifold 4, the oil outlet 2b of the convection tube 2-2 is connected to the intermediate oil collecting pipe 6, the oil inlet 2c of the radiant tube 2-1 is connected to the intermediate oil collecting pipe 6, and the oil outlet 2d of the radiant tube 2-1 is connected to the oil outlet manifold 5. In this utility model, two saddles 10 for supporting the shell 1 are also installed at the bottom of the shell 1, and a heat insulation layer 11 is installed on the outer wall of the shell 1.
[0015] As a preferred embodiment of this utility model, such as Figure 1 As shown, the horizontal gas-fired organic heat carrier furnace also includes a first connecting pipe 7 and a second connecting pipe 8. The oil outlet 2b of the convection pipe 2-2 is connected to the intermediate oil collecting pipe 6 through the first connecting pipe 7, and the oil inlet 2c of the radiation pipe 2-1 is connected to the intermediate oil collecting pipe 6 through the second connecting pipe 8.
[0016] As a preferred embodiment of this utility model, such as Figure 1 As shown, at least one purge pipe 9 is provided at the top of the intermediate oil collecting pipe 6. One end of the purge pipe 9 is connected to the inner cavity of the intermediate oil collecting pipe 6, and the other end of the purge pipe 9 is connected to a compressed air pump through a pipeline and a shut-off valve (the shut-off valve and compressed air pump are not shown in the figure). When maintenance is required, compressed air provided by the compressed air pump can be used to purge the inner cavity of the intermediate oil collecting pipe 6, thereby solving the problem of difficult oil drainage during maintenance of horizontal gas-fired organic heat carrier furnaces.
[0017] After trial use, this utility model ensures that the outlet temperature of the heat transfer oil remains consistent, extends the service life of the heat transfer oil, improves the utilization efficiency of the coil heating surface, solves the problem of difficult oil drainage during maintenance of horizontal gas-fired organic heat carrier furnaces, and makes maintenance and operation more convenient, achieving good practical results.
Claims
1. A horizontal gas-fired organic heat carrier furnace, comprising a cylindrical shell (1), a coil assembly (2), a burner (3), an oil inlet header (4) and an oil outlet header (5), a refractory through hole (1-1) is arranged at the rear end of the shell (1), the burner (3) is installed at the rear end of the shell (1) and the combustion port of the burner (3) is communicated with the refractory through hole (1-1), the oil inlet header (4) and the oil outlet header (5) are arranged outside the front end of the shell (1), characterized in that: The coil assembly (2) comprises at least one spiral radiation pipe (2-1) and at least one spiral convection pipe (2-2), the radiation pipe (2-1) and the convection pipe (2-2) are installed in the shell (1) from inside to outside at intervals, the horizontal gas organic heat carrier furnace further comprises an intermediate oil collecting pipe (6), the intermediate oil collecting pipe (6) is arranged outside the rear end of the shell (1), the oil inlet (2a) of the convection pipe (2-2) is communicated with the oil inlet collecting pipe (4), the oil outlet (2b) of the convection pipe (2-2) is communicated with the intermediate oil collecting pipe (6), the oil inlet (2c) of the radiation pipe (2-1) is communicated with the intermediate oil collecting pipe (6), and the oil outlet (2d) of the radiation pipe (2-1) is communicated with the oil outlet collecting pipe (5); at least one purge pipe (9) is arranged at the top of the intermediate oil collecting pipe (6), one end of the purge pipe (9) is communicated with the inner cavity of the intermediate oil collecting pipe (6), and the other end of the purge pipe (9) is connected with a compressed air pump through a pipeline and a stop valve.
2. A horizontal gas-fired organic rankine boiler as claimed in claim 1, characterized in that: The horizontal gas organic heat carrier furnace further comprises a first connecting pipe (7) and a second connecting pipe (8), the oil outlet (2b) of the convection pipe (2-2) is communicated with the intermediate oil collecting pipe (6) through the first connecting pipe (7), and the oil inlet (2c) of the radiation pipe (2-1) is communicated with the intermediate oil collecting pipe (6) through the second connecting pipe (8).