Needle tube oil burning boiler with energy-saving economizer

A technology for oil-fired boilers and economizers, applied in steam boilers, steam generation, lighting and heating equipment, etc., can solve problems such as uneconomical, and achieve the effects of reducing operating costs, improving economic operation levels, and reducing heat loss.

Inactive Publication Date: 2012-07-18
ZHANGJIAGANG GREENS SHAZHOU BOILER
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AI-Extracted Technical Summary

Problems solved by technology

Therefore, the temperature of the flue gas discharged from the exhaust pipe on the smoke box is still very high...
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Method used

The advantage of the present invention is: owing to being provided with energy-saving economizer on the smoke box 5 of pin-shaped tube oil-fired boiler top, the boiler water that needs replenishment first enters in the energy-saving economizer from the upper interface 81 of serpentine tube 8 into the serpentine tube 8 and absorb the heat of the high-temperature flue gas that enters the energy-saving economizer shell 6 from the smoke box 5, and then enters the b...
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Abstract

The invention discloses a needle tube oil burning boiler with an energy-saving economizer, which structurally comprises a casing and an energy-saving economizer casing. A hearth is arranged inside the casing, the top of the hearth is connected with a plurality of needle tube assemblies, a smoke box is arranged at the top of the casing, the tops of the needle tube assemblies are communicated with the smoke box, a steam outlet is further arranged at the top of the casing, and the smoke box is connected with the energy-saving economizer. The bottom of the energy-saving economizer casing is communicated with the smoke box, an exhaust pipeline is connected onto the energy-saving economizer casing, a coiled pipe is arranged inside the energy-saving economizer casing, an upper connector of the coiled pipe is connected with a water supply connector, and a lower connector of the coiled pipe is communicated with an inner cavity of the casing. The needle tube oil burning boiler with the energy-saving economizer fully utilizes waste heat of smoke in the smoke box, reduces heat energy loss, improves the economic operation level and reduces the operation cost.

Application Domain

Steam boilers

Technology Topic

Water supplyEconomizer +4

Image

  • Needle tube oil burning boiler with energy-saving economizer
  • Needle tube oil burning boiler with energy-saving economizer

Examples

  • Experimental program(1)

Example Embodiment

[0008] The present invention will be further described in detail below with reference to the drawings and preferred embodiments.
[0009] Such as figure 1 As shown, the needle tube oil-fired boiler with an energy-saving economizer mainly includes: a shell 1, a furnace 2 is arranged inside the shell 1, and a number of needle tube assemblies 4 are connected to the top of the furnace 2, and the shell 1 A smoke box 5 is provided on the top, and the top of the needle tube assembly 4 is connected to the smoke box 5, and the top of the housing 1 is also provided with a steam outlet 9, and the smoke box 5 is connected with energy-saving and economical The structure of the energy-saving economizer includes: an energy-saving economizer housing 6, the bottom of the energy-saving economizer housing 6 is connected to the smoke box 5, and the energy-saving economizer housing 6 is connected with an exhaust pipe 7, which is energy-saving and economical A serpentine tube 8 is provided in the housing 6, the upper interface 81 of the serpentine tube 8 is connected with the water supply pipe, and the lower interface 82 of the serpentine tube 8 is in communication with the inner cavity of the housing 1.
[0010] The working principle of the present invention is as follows: When the needle-tube oil-fired boiler with energy-saving economizer is working, the heat generated by the combustion in the furnace 2 is directly transferred to the boiler water in the shell 1, and the flue gas generated in the furnace 2 enters the needle-shaped tube assembly 4, and transfer part of the heat to the boiler water in the shell 1, from the needle tube assembly 4 to the smoke box 5, the flue gas continues to go up to the energy-saving economizer, and the flue gas transfers the heat to the serpentine tube 8 The water supply interface is connected with the upper interface 81 of the serpentine tube 8, so that the boiler water that needs to be replenished flows from the upper end of the energy-saving economizer to the lower end of the energy-saving economizer, forming a countercurrent to the upward trend of flue gas. The flue gas better transfers heat to the water in the serpentine tube 8, and the heated water flowing out of the lower port 82 of the serpentine tube 8 enters the housing 1 again. The steam formed by heating the boiler water in the shell 1 is discharged from the steam outlet 9.
[0011] The advantage of the present invention is: because an energy-saving economizer is installed on the smoke box 5 on the top of the needle-shaped oil-fired boiler, the boiler water that needs to be refilled enters the serpentine-shaped economizer from the upper interface 81 of the serpentine pipe 8. The pipe 8 absorbs the heat of the high-temperature flue gas entering the energy-saving economizer shell 6 from the flue box 5, and then enters the boiler shell 1, and the temperature of the high-temperature flue gas discharged from the flue box 5 After lowering, the energy-saving economizer is discharged. In this way, the waste heat of the flue gas in the flue box 5 is fully utilized, heat energy loss is reduced, the economic operation level of the needle-tube oil-fired boiler is improved, and the operating cost of the needle-tube oil-fired boiler is reduced.

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Description & Claims & Application Information

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