CN206625889U - Cold temperature control system in natural gas engine - Google Patents
Cold temperature control system in natural gas engine Download PDFInfo
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- CN206625889U CN206625889U CN201720381765.3U CN201720381765U CN206625889U CN 206625889 U CN206625889 U CN 206625889U CN 201720381765 U CN201720381765 U CN 201720381765U CN 206625889 U CN206625889 U CN 206625889U
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- cold
- liquid
- cache box
- caching
- charge air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses cold temperature control system in a kind of natural gas engine, including charge air cooler, hot cache box, cold cache box and controller etc., this control system can determine that hydrothermal solution supply or cold night are carried out to the liquid in charge air cooler supplies according to the actual condition of engine, by using the mode of cold temperature control in two level, cold temperature in air inlet can be accurately controlled, no matter how the operating mode of engine changes, the intake air temperature stabilization of engine can be made, and up-down error is respectively no more than 0.5 degree Celsius in the number range of demand.
Description
Technical field
The utility model belongs to technical field of engines, and in particular to cold temperature control system in a kind of natural gas engine
System.
Background technology
Natural gas engine requires very high to intake air temperature, generally requires control in 50 degrees centigrades, upper lower deviation
Several degrees Celsius, can all very big influence be caused to the power and moment of torsion of engine, so as to influence the performance of engine.Therefore entering
When row stand engine research, development is tested, it is intended that keep the intake air temperature of engine constant.
At present, when carrying out engine rig test, the intake method of natural gas engine is：Air passes through after supercharging
In cold preceding air inlet pipe enter charge air cooler, in then being entered by charge air cooler it is cold after escape pipe, enter finally into engine body internal reference
With burning, worked so as to complete whole air inlet.By taking rated speed 2100r/min engine as an example, in different operating modes
Under (i.e. different engine speed and different throttle openings), the air themperature into charge air cooler is different, and is entered
After air in charge air cooler with the liquid inside charge air cooler by carrying out heat exchange, its temperature can change a lot, so as to
Cause the air temperature variations amplitude of therefrom cold rear escape pipe outflow larger, can not thus stablize the intake air temperature of engine,
Cause the intake air temperature fluctuating range of engine very big, reach more than 10 degrees Celsius.Cold temperature control system can not in such
Realize and Engine Inlet Temperature is automatically controlled under different operating modes, it is impossible to meet test requirement.
Utility model content
Technical problem to be solved in the utility model is to provide one kind can be according to different operating modes to natural gas engine
Intake air temperature automatically adjust, cold temperature control system in the natural gas engine that Engine Inlet Temperature control accuracy is high.
In order to solve the above technical problems, the technical solution of the utility model is：
Cold temperature control system in natural gas engine, including：
Charge air cooler, the charge air cooler is provided be connected with booster in cold preceding air inlet pipe and be connected with cylinder
In it is cold after escape pipe；Cold preceding intake air temperature sensor in being provided with described in cold preceding air inlet pipe, cold rear escape pipe in described
On be provided with it is cold after air outlet temperature sensor；The charge air cooler is provided with charge air cooler feed tube and charge air cooler for heat exchange
Drain pipe；
Hot cache box, the hot cache box are provided with the hot cache box feed tube connected with the charge air cooler drain pipe, institute
State and hot cache box liquid inlet control valve is provided with hot cache box feed tube, the hot cache box is provided with and the charge air cooler feed liquor
The hot cache box drain pipe of pipe connection, is provided with that heat caching liquid goes out liquid temperature sensor and heat is delayed on the hot cache box drain pipe
Deposit case liquid control valve；Heat caching liquid is installed on the hot cache box drain pipe and liquid drive mechanism, the hot cache box is set
There are the caching liquid heating arrangements for heating caching liquid；
Cold cache box, the cold cache box are provided with the cold cache box feed tube connected with the charge air cooler drain pipe, institute
State and cold cache box liquid inlet control valve is provided with cold cache box feed tube, the cold cache box is provided with and the charge air cooler feed liquor
The cold cache box drain pipe of pipe connection, cold caching liquid is provided with the cold cache box drain pipe and goes out liquid temperature sensor and cold slow
Deposit case liquid control valve；Cold caching liquid is installed on the cold cache box drain pipe and liquid drive mechanism, the cold cache box is set
There is the caching liquid cooling body for cooling down caching liquid；
Controller, with it is described in cold preceding intake air temperature sensor, in it is cold after air outlet temperature sensor, hot cache box enter hydraulic control
Valve processed, heat caching liquid go out that liquid temperature sensor, hot cache box liquid control valve, heat caching liquid go out liquid drive mechanism, caching liquid adds
Heat engine structure, cold cache box liquid inlet control valve, cold caching liquid go out liquid temperature sensor, cold cache box liquid control valve and cold caching liquid
Go out liquid drive mechanism to be connected.
As preferable technical scheme, it is electronic Water-pumping motor that the heat caching liquid, which goes out liquid drive mechanism,.
As preferable technical scheme, it is also electronic Water-pumping motor that the cold caching liquid, which goes out liquid drive mechanism,.
As preferable technical scheme, the caching liquid heating arrangements are the electrical heating for being arranged at the hot cache box bottom
Device.
As preferable technical scheme, the caching liquid cooling body is the cooler being arranged in the cold cache box,
The cooler is connected with freezing liquid feed tube and freezing liquid drain pipe.
By adopting the above-described technical solution, the utility model has the advantages that：Control system is according to engine
Actual condition determine to carry out the liquid in charge air cooler hydrothermal solution supply or the supply of cold night, by using cold temperature control in two level
Mode, cold temperature in air inlet can be accurately controlled, no matter how the operating mode of engine changes, entering for engine can be made
For gas temperature stabilization in the number range of demand, up-down error is respectively no more than 0.5 degree Celsius.
Brief description of the drawings
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is the structural representation of cold temperature control system in natural gas engine in the utility model embodiment；
Fig. 2 is the theory diagram of cold temprature control method in natural gas engine in the utility model embodiment.
In figure：
10- charge air coolers；Cold preceding air inlet pipe in 11-；Cold rear escape pipe in 12-；Cold preceding intake air temperature sensor in 13-；14-
In it is cold after air outlet temperature sensor；15- charge air cooler feed tubes；16- charge air cooler drain pipes；
The hot cache box of 20-；The hot cache box feed tubes of 21-；The hot cache box liquid inlet control valves of 22-；23- is warm, and cache box goes out liquid
Pipe；24- heat caching liquid goes out liquid temperature sensor；The hot cache box liquid control valves of 25-；26- heat caching liquid goes out liquid drive mechanism；
The cold cache box of 30-；The cold cache box feed tubes of 31-；The cold cache box liquid inlet control valves of 32-；33- is cold, and cache box goes out liquid
Pipe；34- is cold, and caching liquid goes out liquid temperature sensor；The cold cache box liquid control valves of 35-；36- is cold, and caching liquid goes out liquid drive mechanism；
37- freezing liquid feed tubes；38- freezing liquid drain pipes.
Embodiment
With reference to the accompanying drawings and examples, the utility model is expanded on further.In the following detailed description, only pass through
Bright mode describes some one exemplary embodiments of the present utility model.Undoubtedly, one of ordinary skill in the art can be with
Recognize, can be with a variety of modes to described in the case of without departing from spirit and scope of the present utility model
Embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting the protection of claim
Scope.
As depicted in figs. 1 and 2, cold temperature control system in natural gas engine, including：
Charge air cooler 10, the charge air cooler 10 is provided be connected with booster in cold preceding air inlet pipe 11 and and engine air
Cold rear escape pipe 12 in cylinder connection；Cold preceding intake air temperature sensor 13, is used in being provided with described in cold preceding air inlet pipe 11
Cold preceding intake air temperature in after real-time monitoring supercharging, cold rear air outlet temperature sensor in being provided with described on cold rear escape pipe 12
14, for monitoring the air outlet temperature after charge air cooler heat exchange；The charge air cooler 10 is provided with to be entered for the charge air cooler of heat exchange
Liquid pipe 15 and charge air cooler drain pipe 16, charge air cooler inside are provided with the common structures such as heat exchange fin, are no longer described in detail；
Hot cache box 20, the hot cache box 20 are provided with the hot cache box feed liquor connected with the charge air cooler drain pipe 16
Pipe 21, is provided with hot cache box liquid inlet control valve 22 on the hot cache box feed tube 21, the hot cache box 20 be provided with
The hot cache box drain pipe 23 that the charge air cooler feed tube 15 connects, heat caching liquid is provided with the hot cache box drain pipe 23
Go out liquid temperature sensor 24 and hot cache box liquid control valve 25；Heat caching liquid is installed on the hot cache box drain pipe 23
Liquid drive mechanism 26, heat caching liquid, which goes out liquid drive mechanism 26, can use electronic Water-pumping motor etc., and the hot cache box 20 is provided with
For heating the caching liquid heating arrangements (not shown) of caching liquid, the conventional electrical heating knot of electrical heating wire can be such as used
Structure, it is arranged at the bottom of the hot cache box, is no longer described in detail；
Cold cache box 30, the cold cache box 30 are provided with the cold cache box feed liquor connected with the charge air cooler drain pipe 16
Pipe 31, is provided with cold cache box liquid inlet control valve 32 on the cold cache box feed tube 31, the cold cache box 30 be provided with
The cold cache box drain pipe 33 that the charge air cooler feed tube 15 connects, cold caching liquid is provided with the cold cache box drain pipe 33
Go out liquid temperature sensor 34 and cold cache box liquid control valve 35；Cold caching liquid is installed on the cold cache box drain pipe 33
Liquid drive mechanism 36, cold caching liquid, which goes out liquid drive mechanism 36, can also use electronic Water-pumping motor, and the cold cache box 30, which is provided with, to be used
In the caching liquid cooling body of cooling caching liquid, cooler is such as set in the cold cache box, and the cooler is connected with cold
Freeze liquid feed tube 37 and freezing liquid drain pipe 38, refrigeration source can be provided by freezing unit；
Controller (with reference to figure 2), with it is described in cold preceding intake air temperature sensor 13, in it is cold after air outlet temperature sensor 14,
Hot cache box liquid inlet control valve 22, heat caching liquid go out liquid temperature sensor 24, hot cache box liquid control valve 25, heat caching liquid and gone out
Liquid drive mechanism 26, caching liquid heating arrangements 27, cold cache box liquid inlet control valve 32, cold caching liquid go out liquid temperature sensor 34,
Cold cache box liquid control valve 35 goes out liquid drive mechanism 36 with cold caching liquid and is connected by signal wire or control line.
The basic control principle of this control system is：According to the actual condition of engine, cold preceding intake air temperature passes in
The monitoring of sensor 13 obtains the actual intake air temperature of charge air cooler 10, and controller is by the actual intake air temperature of charge air cooler and setting for charge air cooler
Determine intake air temperature to be compared, determine to carry out the heat exchanger fluid in charge air cooler hydrothermal solution supply or the supply of cold liquid, so as to control
The actual air outlet temperature of charge air cooler processed, that is, control the intake air temperature of engine.
Below by taking rated speed 2100r/min engine as an example, specifically introduce cold in natural gas engine
Temprature control method.
In order to realize under different operating mode (i.e. different engine speed and different throttle openings), go out after therefrom cold
The air themperature that tracheae 12 flows out all maintains 50 degrees Celsius, it is necessary to determine it is to charge air cooler according to the actual condition of engine
Liquid in 10 carries out hydrothermal solution supply or the supply of cold night：
(a) when engine is in small load condition, such as idling operation, now the actual intake air temperature of charge air cooler 10 compared with
Low, less than the setting intake air temperature of charge air cooler, cold cache box liquid inlet control valve 32 and cold cache box can now be gone out hydraulic control by system
Valve 35 processed is closed, controller in cold preceding intake air temperature sensor 13, in it is cold after air outlet temperature sensor 14, heat caching liquid go out
The actual numerical value size of 24 3 temperature sensors of liquid temperature sensor, it is slow to caching liquid heating arrangements 27 (electrical heating wire), heat
Case liquid inlet control valve 22 and the hot open command of cache box liquid control valve 25 are deposited, so as to control heat caching liquid temperature angle value, and is adjusted
The aperture of hot cache box liquid inlet control valve 22 and hot cache box liquid control valve 25 controls uninterrupted, goes out liquid by heat caching liquid
The hydrothermal solution of drive mechanism 26 (electronic Water-pumping motor) driving known temperature enters charge air cooler 10 and carries out heat exchange with air, so as to control
The intake air temperature of engine processed；
(b) when engine is in high load working condition, such as declared working condition (2100r/min, 100% throttle), now in
The actual intake air temperature of cooler 10 is higher, and higher than the setting intake air temperature of charge air cooler, hot cache box can now be entered hydraulic control by system
Valve 22 processed and hot cache box liquid control valve 25 are closed, controller in cold preceding intake air temperature sensor 13, in it is cold after outlet
Temperature sensor 14, cold caching liquid go out the actual numerical value size of 34 3 temperature sensors of liquid temperature sensor, to cold cache box
Liquid inlet control valve 32 and the cold open command of cache box liquid control valve 35, and adjust cold cache box liquid inlet control valve 32 and cold caching
The aperture of case liquid control valve 35 controls uninterrupted, goes out liquid drive mechanism 36 (electronic Water-pumping motor) driving by cold caching liquid
Cold 10 device carries out heat exchange with hotter air during cold liquid enters, so as to control the intake air temperature of engine, the cold preceding air inlet as in
Temperature sensor 13 measures 150 degrees Celsius of intake air temperature, in it is cold after 60 degrees Celsius of air outlet temperature sensor 14 measurement temperature, it is cold slow
Liquid storage goes out liquid temperature sensor 34 and tests cold 6 degrees Celsius of caching liquid temperature degree, then the intake air temperature mistake in now illustrating after cold control
Height, system by internal algorithm adjust the aperture of cold cache box liquid control valve 35 in it is cold after air outlet temperature sensor 14 it is anti-
The value of feedback meets code requirement.
The purpose of the temperature adjustment of cold air inlet during this sample system is achieved that under different operating modes to natural gas engine,
Through actual measuring and calculating, the error for controlling intake air temperature is ± 0.5 DEG C, has very high control accuracy.
The schematical embodiment of the utility model is the foregoing is only, is not limited to model of the present utility model
Enclose.Any those skilled in the art, the made equivalent change on the premise of design of the present utility model and principle is not departed from
Change and change, the scope of the utility model protection all should be belonged to.
Claims (5)
1. cold temperature control system in natural gas engine, it is characterised in that including：
Charge air cooler, the charge air cooler is provided be connected with booster in cold preceding air inlet pipe and be connected with cylinder
Escape pipe after cold；Cold preceding intake air temperature sensor in being provided with described in cold preceding air inlet pipe, set in described on cold rear escape pipe
Cold rear air outlet temperature sensor in being equipped with；The charge air cooler is provided with goes out liquid for the charge air cooler feed tube and charge air cooler of heat exchange
Pipe；
Hot cache box, the hot cache box are provided with the hot cache box feed tube connected with the charge air cooler drain pipe, the heat
Hot cache box liquid inlet control valve is provided with cache box feed tube, the hot cache box is provided with to be connected with the charge air cooler feed tube
Logical hot cache box drain pipe, heat caching liquid is provided with the hot cache box drain pipe and goes out liquid temperature sensor and hot cache box
Liquid control valve；Heat caching liquid is installed on the hot cache box drain pipe and liquid drive mechanism, the hot cache box, which is provided with, to be used
In the caching liquid heating arrangements of heating caching liquid；
Cold cache box, the cold cache box is provided with the cold cache box feed tube connected with the charge air cooler drain pipe, described cold
Cold cache box liquid inlet control valve is provided with cache box feed tube, the cold cache box is provided with to be connected with the charge air cooler feed tube
Logical cold cache box drain pipe, cold caching liquid is provided with the cold cache box drain pipe and goes out liquid temperature sensor and cold cache box
Liquid control valve；Cold caching liquid is installed on the cold cache box drain pipe and liquid drive mechanism, the cold cache box, which is provided with, to be used
In the caching liquid cooling body of cooling caching liquid；
Controller, with it is described in cold preceding intake air temperature sensor, in it is cold after air outlet temperature sensor, hot cache box feed liquor control
Valve, heat caching liquid go out liquid temperature sensor, hot cache box liquid control valve, heat caching liquid and go out liquid drive mechanism, caching liquid heating
Mechanism, cold cache box liquid inlet control valve, cold caching liquid go out liquid temperature sensor, cold cache box liquid control valve and cold caching liquid and gone out
Liquid drive mechanism is connected.
2. cold temperature control system in natural gas engine as claimed in claim 1, it is characterised in that：The heat caching liquid goes out
Liquid drive mechanism is electronic Water-pumping motor.
3. cold temperature control system in natural gas engine as claimed in claim 1, it is characterised in that：The cold caching liquid goes out
Liquid drive mechanism is also electronic Water-pumping motor.
4. cold temperature control system in natural gas engine as claimed in claim 1, it is characterised in that：The caching liquid heating
Mechanism is to be arranged at the electric heater of the hot cache box bottom.
5. cold temperature control system in the natural gas engine as described in claim 1,2,3 or 4, it is characterised in that：It is described slow
Liquid storage cooling body is the cooler being arranged in the cold cache box, and the cooler is connected with freezing liquid feed tube and freezing
Liquid drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381765.3U CN206625889U (en) | 2017-04-12 | 2017-04-12 | Cold temperature control system in natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381765.3U CN206625889U (en) | 2017-04-12 | 2017-04-12 | Cold temperature control system in natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206625889U true CN206625889U (en) | 2017-11-10 |
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ID=60207384
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381765.3U Active CN206625889U (en) | 2017-04-12 | 2017-04-12 | Cold temperature control system in natural gas engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN206625889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979064A (en) * | 2017-04-12 | 2017-07-25 | 潍柴西港新能源动力有限公司 | Cold temperature control system and method in natural gas engine |
-
2017
- 2017-04-12 CN CN201720381765.3U patent/CN206625889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979064A (en) * | 2017-04-12 | 2017-07-25 | 潍柴西港新能源动力有限公司 | Cold temperature control system and method in natural gas engine |
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