CN-224229972-U - Horizontal direct-current steam generating device

CN224229972UCN 224229972 UCN224229972 UCN 224229972UCN-224229972-U

Abstract

The utility model relates to a horizontal direct-current steam generating device which comprises a shell, a burner, a wall pipe type heat exchanger, a first vaporization heat exchanger, a second vaporization heat exchanger, a superheating heat exchanger, a preheating heat exchanger and a flue gas condensing heat exchanger, wherein the flue gas condensing heat exchanger, the preheating heat exchanger, the wall pipe type heat exchanger, the first vaporization heat exchanger, the second vaporization heat exchanger and the superheating heat exchanger are sequentially connected in series. Compared with the existing steam generating device with the steam-water separator, the direct-current steam generating device is provided with the tank body in the form of the steam-water separator, the pipeline of the direct-current steam generating device is not excessively connected and welded, the production process is simple, the steam generating speed is high, no high-temperature water is remained in the heat exchanger, and all high-temperature water is directly heated into superheated steam and then output.

Inventors

HU JIANPING
TANG LILONG

Assignees

泰州市斯迪蒙科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250521

Claims (10)

1. The utility model provides a horizontal direct current steam generating device, which comprises a housing, the combustor, wall tubular heat exchanger, first vaporization heat exchanger, the second vaporization heat exchanger, overheated heat exchanger, preheat heat exchanger and flue gas condensation heat exchanger, the front end of shell is located to the combustor, be equipped with air inlet fan on the combustor, air inlet fan and combustor intercommunication, characterized by, the inner wall of shell is equipped with insulation material, wall tubular heat exchanger, first vaporization heat exchanger, the second vaporization heat exchanger, overheated heat exchanger, preheat heat exchanger, flue gas condensation heat exchanger locates in the shell in proper order along the flow direction of flue gas, be equipped with the water inlet on the flue gas condensation heat exchanger, the rear end of shell is equipped with the exhaust port, be equipped with steam discharge port on the overheated heat exchanger, flue gas condensation heat exchanger, preheat heat exchanger, wall tubular heat exchanger, first vaporization heat exchanger, second vaporization heat exchanger, overheated heat exchanger connects gradually in series.
2. The horizontal direct current steam generating device according to claim 1, wherein the first vaporization heat exchanger and the second vaporization heat exchanger are connected by a flange, and the second vaporization heat exchanger and the superheating heat exchanger are connected by a flange.
3. The horizontal direct current steam generating device according to claim 1, wherein the wall tube heat exchanger, the first vaporization heat exchanger, the second vaporization heat exchanger, the superheating heat exchanger, and the preheating heat exchanger are welded to the housing.
4. The horizontal dc steam generator of claim 1 further comprising a base, wherein the housing is elongate and wherein the housing is disposed horizontally on the base.
5. The horizontal direct current steam generating device according to claim 1, wherein the flue gas condensing heat exchanger is arranged at a flue gas outlet, and the flue gas outlet faces vertically downwards.
6. The horizontal type direct current steam generating device according to claim 1, wherein the shell comprises an elongated shell and a spliced shell, the spliced shell is detachably connected with the rear end of the elongated shell, the flue gas condensing heat exchanger is arranged in the spliced shell, and the smoke outlet is arranged at the lower end of the spliced shell.
7. The horizontal direct current steam generating device according to claim 6, wherein the flue gas condensing heat exchanger is formed by stacking and splicing a plurality of layers of heat exchange tubes in a snake shape up and down, the heat exchange tubes in the snake shape are sequentially connected in series, a plurality of heat exchange fins are arranged on the outer side wall of the heat exchange tube, and two adjacent heat exchange fins are arranged at intervals to form a flue gas passing gap.
8. The horizontal direct current steam generator according to claim 7, wherein the flue gas condensing heat exchanger is provided with a water inlet connecting flange and a water outlet connecting flange, the water inlet is arranged on the water inlet connecting flange, and a water pipe is arranged between the preheating heat exchanger and the water outlet connecting flange.
9. The horizontal direct current steam generating device according to claim 1, wherein the first vaporization heat exchanger is a convection heat exchange tube, and the second vaporization heat exchanger and the superheating heat exchanger are spiral fin heat exchange tubes.
10. The horizontal direct-current steam generating device according to claim 1, wherein the preheating heat exchanger is formed by sequentially connecting a plurality of vertically arranged straight pipes in series, the end parts of two adjacent straight pipes are connected by adopting bent pipes, a smoke passing gap exists between the two adjacent straight pipes, the wall pipe type heat exchanger is formed by spirally winding at least one heat exchange pipe into a cylindrical structure along the horizontal direction, the front part and the rear part of the wall pipe type heat exchanger are open, the front part of the wall pipe type heat exchanger extends into the wall pipe type heat exchanger, and the rear part of the wall pipe type heat exchanger faces the first vaporization heat exchanger.

Description

Horizontal direct-current steam generating device Technical Field The utility model relates to the technical field of steam generating equipment, in particular to a horizontal direct-current steam generating device. Background The prior steam generating device adopts mixed flow steam generating technology, and has the structure as a micro-superheating steam machine disclosed in the year 2024, 04 and 26 of Chinese patent publication No. CN220852115U, and comprises a shell, a steam-water separator, a water inlet pipe and a water outlet pipe, wherein the front end of the shell is provided with a burner, the burner is provided with an air inlet fan, the rear end of the shell is provided with a smoke outlet, a wall pipe type heat exchanger, a vaporization heat exchanger, a steam-water separator, a superheating heat exchanger and a high-temperature flue gas heat exchanger are sequentially arranged in the shell from front to back, a steam outlet is arranged on the superheating heat exchanger, and the water inlet pipe, the high-temperature flue gas heat exchanger, the wall pipe type heat exchanger, the vaporization heat exchanger, the steam-water separator and the superheating heat exchanger are sequentially connected in series. The cold water is changed into high-temperature steam after passing through the high-temperature flue gas heat exchanger, the wall pipe type heat exchanger and the vaporization heat exchanger in sequence, then water is separated out through the steam-water separator, and then the steam enters the overheat heat exchanger for continuous heat exchange to become overheat steam, but the steam generating device has the following defects that the pipeline welding positions of the steam-water separator are more, the leakage risk is high, and the welding process is complex. 2. Because the high-temperature steam is separated in the steam-water separator, a part of the steam is condensed into high-temperature water to be remained in the steam-water separator, the steam output speed is low, and the steam output is low. 3. The heat of flame and smoke generated by the combustion of the burner is transferred to the housing, resulting in serious heat damage, and thus the structure of the existing steam generating apparatus needs to be further improved. Disclosure of utility model The utility model aims to provide a horizontal direct-current steam generating device which has simple production process, good leak resistance and high steam generation speed. The purpose of the utility model is realized in the following way: The utility model provides a horizontal direct current steam generating device, which comprises a housing, the combustor, wall tubular heat exchanger, first vaporization heat exchanger, the second vaporization heat exchanger, overheated heat exchanger, preheat heat exchanger and flue gas condensation heat exchanger, the inside wall of shell is equipped with heat preservation material, the front end of shell is located to the combustor, be equipped with air inlet fan on the combustor, air inlet fan and combustor intercommunication, wall tubular heat exchanger is located in the shell in proper order along the flow direction of flue gas to wall tubular heat exchanger, first vaporization heat exchanger, second vaporization heat exchanger, overheated heat exchanger, preheat heat exchanger, flue gas condensation heat exchanger, be equipped with the water inlet on the flue gas condensation heat exchanger, the rear end of shell is equipped with the exhaust port, be equipped with steam vent on the overheated heat exchanger, the flue gas condensation heat exchanger, preheat heat exchanger, wall tubular heat exchanger, first vaporization heat exchanger, second vaporization heat exchanger, overheated heat exchanger connects gradually in series. The utility model is a direct-current steam generating device, there is no tank body in the form of steam-water separator, cold water of the utility model sequentially passes through the flue gas condensing heat exchanger, the preheating heat exchanger, the wall tube heat exchanger, the first vaporizing heat exchanger, the second vaporizing heat exchanger, the overheat heat exchanger and the high-temperature flue gas to change into overheat steam after heat exchange, the utility model has no high-temperature water stagnating in the heat exchanger, all high-temperature water is directly heated into overheat steam and then output, compared with the existing steam generating device with steam-water separator, the pipeline of the utility model has no excessive connection and welding, the production process of the utility model is simple, the leak-proof performance is good, and the steam generating speed is fast. The heat insulation material disclosed by the utility model can be used for blocking heat of high-temperature flue gas from radiating outwards, so that the temperature of the shell is reduced, and the heat energy utilization rate of the heat insulation materi