CN209399123U - A kind of two-stage type gasifier - Google Patents
A kind of two-stage type gasifier Download PDFInfo
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- CN209399123U CN209399123U CN201821845838.0U CN201821845838U CN209399123U CN 209399123 U CN209399123 U CN 209399123U CN 201821845838 U CN201821845838 U CN 201821845838U CN 209399123 U CN209399123 U CN 209399123U
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- shell
- heat exchange
- main heat
- exchange chamber
- preheating cavity
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Abstract
A kind of two-stage type gasifier, including shell (1), natural gas line (2) are provided in shell (1), the Imported gas (3) and gas outlet (4) at natural gas line (2) both ends are located at shell (1) both ends, partition (5) are provided in shell (1), gasifier shell (1) is divided into two independent preheating cavities (6) and main heat exchange chamber (7) by partition (5), and Imported gas (3) is located at preheating cavity (6) end, gas outlet (4) is located at main heat exchange chamber (7) end, the preheating cavity water inlet (8) and preheating cavity water outlet (9) being connected with preheating cavity (6) are provided on the shell (1) of preheating cavity (6), the main heat exchange chamber water inlet (10) and main heat exchange chamber being connected with main heat exchange chamber (7) are provided on the shell (1) of main heat exchange chamber (7) Water outlet (11).Realization is divided into two-stage and natural gas is gasified and heated.
Description
Technical field
The utility model relates to a kind of gasifier, more specifically to a kind of two-stage type gasifier belongs to car engine
Machine technical field.
Background technique
Currently, the extensive use with liquefied natural gas on vehicle, component capabilities in feed system increasingly by
To concern, gasifier is exactly one of critical component.Gasifier is to hand over -162 DEG C of ultralow temperature liquified natural gas through overheat
Ventilation formation gas, and it is heated to the device of certain temperature, heat exchange medium is engine coolant.
Since natural gas temperature is too low, causes the heat exchanger in gasifier that can only take co-current mode, prevent coolant liquid
Crystallization even freezes；But the heat exchanger effectiveness of downstream heat transfer is relatively low, gasification rate is slow, is not able to satisfy engine and suddenly accelerates
Operating condition.
Summary of the invention
The purpose of this utility model is that co-current mode can only be taken to exist for the heat exchanger in existing gasifier
Heat exchanger effectiveness is relatively low, the defects of gasification rate is slow, a kind of two-stage type gasifier is provided.
To achieve the above object, the technical solution of the utility model is: a kind of two-stage type gasifier, including shell,
Natural gas line is provided in the shell, the Imported gas and gas outlet at natural gas line both ends are located at shell
Body both ends are provided with partition in shell, and gasifier shell is divided into two independent preheating cavities and main heat exchange chamber by the partition,
And Imported gas is located at preheating cavity end, gas outlet is located at main heat exchange chamber end, be provided on the shell of the preheating cavity with
The preheating cavity water inlet and preheating cavity water outlet that preheating cavity is connected are provided with and main heat exchange chamber on the shell of the main heat exchange chamber
The main heat exchange chamber water inlet and main heat exchange chamber water outlet being connected.
Compared with prior art, the beneficial effects of the utility model are:
The utility model includes two heat exchange cavitys of preheating cavity and main heat exchange chamber, and preheating cavity is using co-current mode to natural
Gas-liquid is preheated, preliminary to complete gasification；Main heat exchange chamber then uses counter-flow pattern to heat cryogenic natural gas, quickly
Complete cryogenic gas heating；Therefore the requirement of gasification rate and temperature rise is able to satisfy when suddenly accelerating.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model perspective view.
In figure: shell 1, natural gas line 2, Imported gas 3, gas outlet 4, partition 5, preheating cavity 6, main heat exchange chamber
7, preheating cavity water inlet 8, preheating cavity water outlet 9, main heat exchange chamber water inlet 10, main heat exchange chamber water outlet 11.
Specific embodiment
The utility model is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1 to Fig. 2, a kind of two-stage type gasifier belongs to a kind of liquefied natural gas gasifying device, including shell 1.Institute
Natural gas line 2 is provided in the shell 1 stated, the Imported gas 3 and gas outlet 4 at 2 both ends of natural gas line distinguish position
In 1 both ends of shell.
Referring to Fig. 1 to Fig. 2, partition 5 is provided in shell 1, gasifier shell 1 is divided into two independences by the partition 5
Preheating cavity 6 and main heat exchange chamber 7；And Imported gas 3 is located at 6 end of preheating cavity, gas outlet 4 is located at 7 end of main heat exchange chamber.Institute
State the preheating cavity water inlet 8 and preheating cavity water outlet 9 for being provided on the shell 1 of preheating cavity 6 and being connected with preheating cavity 6, the master
The main heat exchange chamber water inlet 10 and main heat exchange chamber water outlet 11 being connected with main heat exchange chamber 7 are provided on the shell 1 of heat exchanging chamber 7.
Referring to Fig. 1 to Fig. 2, when engine is run, natural gas is entered by Imported gas 3, flows to the another of natural gas line 2
One end, and engine aspirating system is flowed out to through gas outlet 4.Water flow is respectively by the preheating cavity water inlet 8 of preheating cavity 6 and master
The main heat exchange chamber water inlet 10 of heat exchanging chamber 7 enters preheating cavity 6 and main heat exchange chamber 7, after completing heat exchange with natural gas, then respectively from
The preheating cavity water outlet 9 of preheating cavity 6 and the main heat exchange chamber water outlet 11 of main heat exchange chamber 7 flow out.To complete entire heat exchange
Journey.In the process, the water (flow) direction of preheating cavity 6 is consistent with natural gas flow direction, is downstream heat transfer, makes liquified natural gas gas
Guarantee that coolant liquid will not be freezed while change；The water (flow) direction of main heat exchange chamber 7 is contrary with natural gas flow, changes for adverse current
Heat, heat exchange efficiency are higher than co-current mode, accelerate gasification rate and natural gas temperature rise, and realization is divided into two-stage and gasifies to natural gas
And heating, it had not only improved heat exchanger effectiveness but also had effectively prevented the risk that coolant liquid crystallization even freezes.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, above structure
It all shall be regarded as belonging to the protection scope of the utility model.
Claims (1)
1. a kind of two-stage type gasifier, it is characterised in that: including shell (1), be provided with natural gas line in the shell (1)
(2), the Imported gas (3) and gas outlet (4) at natural gas line (2) both ends are located at shell (1) both ends, shell
(1) it is provided with partition (5) in, gasifier shell (1) is divided into two independent preheating cavity (6) He Zhuhuan by the partition (5)
Hot chamber (7), and Imported gas (3) is located at preheating cavity (6) end, gas outlet (4) is located at main heat exchange chamber (7) end, described pre-
The preheating cavity water inlet (8) and preheating cavity water outlet (9) being connected with preheating cavity (6) are provided on the shell (1) of hot chamber (6),
Main heat exchange chamber water inlet (10) He Zhuhuan being connected with main heat exchange chamber (7) is provided on the shell (1) of the main heat exchange chamber (7)
Hot chamber water outlet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821845838.0U CN209399123U (en) | 2018-11-09 | 2018-11-09 | A kind of two-stage type gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821845838.0U CN209399123U (en) | 2018-11-09 | 2018-11-09 | A kind of two-stage type gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209399123U true CN209399123U (en) | 2019-09-17 |
Family
ID=67879863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821845838.0U Active CN209399123U (en) | 2018-11-09 | 2018-11-09 | A kind of two-stage type gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209399123U (en) |
-
2018
- 2018-11-09 CN CN201821845838.0U patent/CN209399123U/en active Active
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