Fire-tube boiler main fire tube heat exchange efficiency improving device and mounting method thereof

A technology of a fire tube boiler and an installation method, which is applied in the directions of water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of high renovation cost, long construction period and low energy efficiency, so as to save the renovation cost and shorten the renovation construction period. , the effect of improving the energy saving rate

Active Publication Date: 2017-03-22
杭州帕沃节能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a traditional fire tube boiler, the flue gas and water exchange heat through indirect heat exchange with the fire tube wall. Since the heat transfer coefficient on the flue gas side is much smaller than that on the water side, the energy efficiency of the traditional fire tube boil...

Method used

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  • Fire-tube boiler main fire tube heat exchange efficiency improving device and mounting method thereof
  • Fire-tube boiler main fire tube heat exchange efficiency improving device and mounting method thereof
  • Fire-tube boiler main fire tube heat exchange efficiency improving device and mounting method thereof

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Experimental program
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Effect test

Embodiment 1

[0014] Embodiment 1: with reference to attached Figure 2-Figure 6 . A fire tube boiler main fire tube heat exchange enhancement device, including an expansion barrel 1 and a plurality of V-shaped heat storage nest net bucket assemblies 2, and the ports at both ends of the expansion barrel 1 are tapered openings 11 that are wide on the outside and narrow on the inside. And two tapered mouths 11 are respectively provided with a tapered slider 3, the size of the tapered mouth 11 matches the size of the tapered slider 3, the two tapered sliders 3 are provided with a pull bar 4 and the pull bar 4 is a The side end is provided with nuts 5, and the number of nuts 5 is 1 or 2; the outer surface of the expansion barrel 1 is surrounded by a plurality of V-shaped heat storage nest mesh bucket assemblies 2 and multiple V-shaped heat storage nest mesh bucket assemblies The sum of the included angles of the V-shaped heat storage nest buckets 21 in module 2 is 360°. The V-shaped heat stor...

Embodiment 2

[0015]Embodiment 2: on the basis of embodiment 1. A method for installing a fire tube boiler main fire tube heat exchange efficiency device, the first step is to remove the burner in the fire tube boiler 6 and carry out derusting and brushing strengthening agent treatment on the inner wall of the main fire tube; second The first step is to set the expansion bucket 1 with multiple V-shaped regenerative nest mesh bucket assemblies 2 around the outer circle in the main fire pipe after derusting, and turn the nut 5 to make the two tapered sliders on the pull rod 4 move in 3 directions. Moving inside, the expansion barrel 1 expands outward under the stretching of the two conical sliders 3 moving inwards and evenly tightens the multiple V-shaped heat storage nest mesh bucket assemblies 2 around the outer surface of the expansion barrel 1 The inner wall of the main fire tube. In the third step, the burner is packed back into the original position of the fire tube boiler 6 . Before ...

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Abstract

The invention relates to a fire-tube boiler main fire tube heat exchange efficiency improving device and a mounting method thereof. The fire-tube boiler main fire tube heat exchange efficiency improving device is good in energy saving effect and does not need to change the main structure and using mode of an existing traditional fire-tube boiler after being mounted. The fire-tube boiler main fire tube heat exchange efficiency improving device comprises an expansion barrel and a plurality of V-shaped heat storage net hopper assemblies. The end openings at the two ends of the expansion barrel are both conical openings with the outer sides wider than the inner sides, and a conical sliding block is arranged in each conical opening. A pull rod is arranged between the two conical sliding blocks, and a nut is arranged at the end of one side of the pull rod. The V-shaped heat storage net hopper assemblies surround the outer circular surface of the expansion barrel, and the sum of the included angles of V-shaped heat storage net hoppers in the V-shaped heat storage net hopper assemblies is 360 degrees. The fire-tube boiler main fire tube heat exchange efficiency improving device has the advantages that firstly, the main structure and using mode of the existing traditional fire-tube boiler do not need to be changed after the heat exchange efficiency improving device is mounted, the modification period of the traditional fire-tube boiler is shortened, and the modification cost is saved; and secondly, the heat exchange efficiency improving device can conduct sufficient heat exchange with high-temperature smoke, and thus the energy saving rate of the modified fire-tube boiler is increased by 20%-30%.

Description

technical field [0001] The invention relates to a fire tube boiler main fire tube heat exchange efficiency device and its installation method that can be installed without changing the main body structure and use mode of the existing traditional fire tube boiler, and has good energy saving effect, belonging to high-efficiency heat exchangers manufacturing field. Background technique [0002] Looking at the development history of boilers, fire tube boilers have appeared as early as the 1930s, and have a longer development history than water tube boilers. The so-called fire tube boiler means that the fire tube is installed in the pot shell to form the main heating surface of the boiler, the fire (flue gas) flows through the tube, and the flue gas and water exchange heat indirectly through the fire tube wall (such as figure 1 shown). Due to the characteristics of low metal consumption, light boiler itself and compact layout, fire tube boilers are widely used in modern industr...

Claims

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Application Information

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IPC IPC(8): F24H1/36F24H9/18
CPCF24H1/36F24H9/1809
Inventor 黄梦青
Owner 杭州帕沃节能设备有限公司
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