CN211823950U - Gasifier forced convection device - Google Patents
Gasifier forced convection device Download PDFInfo
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- CN211823950U CN211823950U CN202020290492.3U CN202020290492U CN211823950U CN 211823950 U CN211823950 U CN 211823950U CN 202020290492 U CN202020290492 U CN 202020290492U CN 211823950 U CN211823950 U CN 211823950U
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Abstract
The gasifier forced convection device comprises a spray pipeline arranged at the top of a heat exchanger, an air exhaust cover, a flow guide cover and a forced fan, wherein the air exhaust cover is of a frame structure, and the shape and the size of the opening surface of the air exhaust cover are consistent with those of the top of the heat exchanger; the spraying pipeline is connected with a waste hot water pipe joint outwards, and the shape and the size of the lower opening of the air guide sleeve are consistent with those of the upper opening of the air exhaust sleeve; the spraying pipeline is arranged right above the heat exchanger, and the shape and the size of the upper opening surface of the air guide sleeve are consistent with those of the air inlet of the forced fan; the air exhaust cover is fixedly covered at the top of the heat exchanger, a sealing ring is arranged at the joint of the lower opening surface of the air exhaust cover and the top of the heat exchanger, a waste hot water pipe joint is embedded in the air exhaust cover, the upper opening surface of the air exhaust cover is connected with the lower opening surface of the flow guide cover, the upper opening surface of the flow guide cover is connected with the air inlet of the forced fan, and the air outlet of the forced fan faces the upper space of the heat exchanger. The heat exchange efficiency of the gasifier heat exchanger can be improved, the size of the heat exchanger is reduced, and the installation space is saved.
Description
Technical Field
The utility model relates to a gasifier field, concretely relates to gasifier forced convection device.
Background
The air temperature type gasifier is a gasification device which realizes the gasification function by means of self heat dissipation and absorption of external atmospheric environment heat, and has the function of converting a liquid medium into a gaseous medium, and is a high-efficiency energy-saving heat exchange device which heats low-temperature liquefied natural gas by utilizing natural convection of air to completely gasify the liquefied natural gas into natural gas. In recent years, in order to improve urban environment and air quality and speed up the pace of environmental governance (such as changing coal into gas) in China, the demand of the market for natural gas is increasing sharply. Liquefied natural gas LNG has started to be gradually spread in cities. The air-temperature type LNG vaporizer is gradually applied to an LNG vaporizing station, an LNG bottle group station, an LNG gas station, an L-CNG gas station, an LNG point supply (non-pipeline gas supply) and the like as high-efficiency energy-saving heat exchange equipment. However, because the existing LNG air-temperature type gasifier is not optimally designed, the structure of a general finned tube is as follows: the finned tube is provided with a central tube, radial fins are arranged outside the tube, liquid flows in the tube, and the fins absorb heat of the external environment and transfer the heat to the liquid in the tube so as to realize heat absorption and gasification of the liquid. The following disadvantages mostly exist: complex structure, huge equipment, overhigh manufacturing cost and insufficient product flow. The reason for this (apart from the manual factors) is mainly the heat exchange area. In order to achieve a certain flow, the fins of the gasifier can only be increased, the heat exchange area is increased through the fins, the heat exchange effect of the unit body surface is improved, but the defects that the ventilation effect is influenced by a plurality of fins, the application field is limited sometimes, the fins are not convenient to increase, meanwhile, the fins in the middle of the gasifier are blocked by the surrounding fins, and heat exchange cannot be carried out in time, so that the heat exchange effect is influenced.
Therefore, how to improve the heat exchange rate in the middle of the gasifier, so as to improve the heat exchange effect of the whole gasifier, is a technical problem to be solved urgently by related personnel in the industry.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, a forced convection device for a gasifier is provided, which can improve the heat exchange efficiency of a heat exchanger of the gasifier, reduce the volume of the heat exchanger and save the installation space.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a gasifier forced convection device comprises a spraying pipeline, an air exhaust cover, a flow guide cover and a forced fan, wherein the spraying pipeline, the air exhaust cover, the flow guide cover and the forced fan are arranged at the top of a heat exchanger, the air exhaust cover is of a frame structure, and the shape and the size of the opening surface of the air exhaust cover are consistent with those of the top of the heat exchanger; the spraying pipeline is connected with a waste hot water pipe joint to the outer side, the air guide sleeve is of an arc-shaped cylindrical structure with a large lower part and a small upper part, and the shape and the size of the lower opening surface of the air guide sleeve are consistent with those of the upper opening surface of the air exhaust sleeve; the spray pipeline is arranged right above the heat exchanger, the joint of the waste hot water pipe connected with the spray pipeline extends outwards, and the shape and the size of the upper opening surface of the air guide sleeve are consistent with those of the air inlet of the forced fan; the air exhaust cover is fixedly covered on the top of the heat exchanger, a sealing ring is arranged at the joint of the lower opening surface of the air exhaust cover and the top of the heat exchanger, the waste hot water pipe joint is embedded in the air exhaust cover, the upper opening surface of the air exhaust cover is connected with the lower opening surface of the air guide cover, the upper opening surface of the air guide cover is connected with the forced fan air inlet, and the forced fan air outlet faces the upper space of the heat exchanger.
Preferably, the size of the air inlet of the forced fan is not less than one half of the size of the air extraction cover.
Preferably, a grille is arranged at the joint of the air inlet of the forced fan and the upper opening surface of the air guide sleeve.
Through the technical proposal, the gasifier forced convection device of the utility model arranges the spray pipeline and the forced fan at the top of the heat exchanger, so that the exhaust hood is fixedly covered above the spray pipeline at the top of the heat exchanger, and the joint of the lower opening surface of the exhaust hood and the top of the heat exchanger is provided with the sealing ring, the upper opening surface of the exhaust hood is connected with the lower opening surface of the air guide hood, the upper opening surface of the air guide hood is connected with the air inlet of the forced fan, the air outlet of the forced fan faces the upper part of the heat exchanger, when in work, an external waste heat water pipe supplies hot water to the spray pipeline and sprays hot water on the heat exchanger, and simultaneously the forced fan is started to extract the vapor in the middle of the heat exchanger to the upper part of the heat exchanger to carry out strong convection, and the heat exchange is accelerated by strengthening the gas flow in the forced fan, thereby greatly, and saves installation space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a gasifier forced convection apparatus as disclosed in an embodiment of the present invention;
fig. 2 is a top view of a gasifier forced convection apparatus according to an embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. heat exchanger 2, spray pipeline 3, air extraction hood 4, kuppe
5. Forced fan 6. waste hot water pipe joint
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and embodiments.
Examples are given.
As shown in fig. 1 and 2, a gasifier forced convection device comprises a spraying pipeline 2 arranged at the top of a heat exchanger 1, an air extraction hood 3, a flow guide hood 4 and a forced fan 5, wherein the air extraction hood 3 is of a frame-shaped structure, and the shape and the size of the mouth surface of the air extraction hood are consistent with those of the top of the heat exchanger 1; the spraying pipeline 2 is connected with a waste hot water pipe joint 6 to the outside, the air guide sleeve 4 is of an arc-shaped cylindrical structure with a large lower part and a small upper part, and the shape and the size of the lower opening face of the air guide sleeve are consistent with those of the upper opening face of the air exhaust sleeve 3; the spraying pipeline 2 is arranged right above the heat exchanger 1, a waste hot water pipe joint 6 connected with the spraying pipeline extends outwards, and the shape and the size of the upper opening surface of the air guide sleeve 4 are consistent with those of an air inlet of the forced fan 5; the air exhaust cover 3 is fixedly covered on the top of the heat exchanger 1, a sealing ring is arranged at the joint of the lower opening surface of the air exhaust cover 3 and the top of the heat exchanger 1, the waste hot water pipe joint 6 is embedded in the air exhaust cover 3, the upper opening surface of the air exhaust cover 3 is connected with the lower opening surface of the air guide cover 4, the upper opening surface of the air guide cover 4 is connected with the air inlet of the forced fan 5, and the air outlet of the forced fan 5 faces the upper space of the heat exchanger 1.
Meanwhile, in order to ensure that the water vapor in the middle of the heat exchanger 1 is pumped out in time and the convection and the heat exchange are strengthened in time, the size of the air inlet of the forced fan 5 is not less than one half of the size of the opening surface of the air pumping cover 3.
In addition, a grille is arranged at the joint of the air inlet of the forced fan 5 and the upper opening surface of the air guide sleeve 4, so that sundries are prevented from being sucked into the forced fan 5 to damage the fan blades, and the gasification effect is prevented from being influenced.
In this embodiment, the gasifier forced convection device of the present invention is provided with a spraying pipeline 2 and a forced fan 5 on the top of a heat exchanger 1, a fixed cover of an air exhaust cover 3 is arranged above the spraying pipeline 2 on the top of the heat exchanger 1, and a sealing ring is arranged at the joint of the lower opening surface of the air exhaust cover 3 and the top of the heat exchanger 1, the upper opening surface of the air exhaust cover 3 is connected with the lower opening surface of a flow guide cover 4, the upper opening surface of the flow guide cover 4 is connected with an air inlet of the forced fan 5, an air outlet of the forced fan 5 faces to the upper part of the heat exchanger 1, an external waste heat water pipe (not marked) supplies hot water to the spraying pipeline 2 during operation to spray hot water on the heat exchanger 1, and simultaneously the forced fan 5 is started to extract water vapor in the middle part of the heat exchanger 1 to the upper part to realize strong convection, and accelerate heat exchange by enhancing, and the volume of the heat exchanger is reduced, and the installation space is saved. Thereby the purposes of novel design, reasonable structure and good application effect are achieved.
The above description is only the preferred embodiment of the forced convection apparatus for gasifier of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (3)
1. A gasifier forced convection device is characterized by comprising a spraying pipeline, an air exhaust cover, a flow guide cover and a forced fan, wherein the spraying pipeline, the air exhaust cover, the flow guide cover and the forced fan are arranged at the top of a heat exchanger, the air exhaust cover is of a frame structure, and the shape and the size of the mouth surface of the air exhaust cover are consistent with those of the top of the heat exchanger; the spraying pipeline is connected with a waste hot water pipe joint to the outer side, the air guide sleeve is of an arc-shaped cylindrical structure with a large lower part and a small upper part, and the shape and the size of the lower opening surface of the air guide sleeve are consistent with those of the upper opening surface of the air exhaust sleeve; the spray pipeline is arranged right above the heat exchanger, the joint of the waste hot water pipe connected with the spray pipeline extends outwards, and the shape and the size of the upper opening surface of the air guide sleeve are consistent with those of the air inlet of the forced fan; the air exhaust cover is fixedly covered on the top of the heat exchanger, a sealing ring is arranged at the joint of the lower opening surface of the air exhaust cover and the top of the heat exchanger, the waste hot water pipe joint is embedded in the air exhaust cover, the upper opening surface of the air exhaust cover is connected with the lower opening surface of the air guide cover, the upper opening surface of the air guide cover is connected with the forced fan air inlet, and the forced fan air outlet faces the upper space of the heat exchanger.
2. A gasifier forced convection apparatus as claimed in claim 1, wherein the size of the air inlet of the forced fan is not less than one-half of the size of the air extraction hood.
3. The forced convection apparatus for gasifier of claim 2, wherein a grille is disposed at a connection between the air inlet of the forced fan and the upper opening surface of the air guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290492.3U CN211823950U (en) | 2020-03-10 | 2020-03-10 | Gasifier forced convection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290492.3U CN211823950U (en) | 2020-03-10 | 2020-03-10 | Gasifier forced convection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211823950U true CN211823950U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020290492.3U Active CN211823950U (en) | 2020-03-10 | 2020-03-10 | Gasifier forced convection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211823950U (en) |
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2020
- 2020-03-10 CN CN202020290492.3U patent/CN211823950U/en active Active
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