CN206973717U - A kind of new two close cycles engine test air inlet air conditioning device - Google Patents
A kind of new two close cycles engine test air inlet air conditioning device Download PDFInfo
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- CN206973717U CN206973717U CN201720730256.7U CN201720730256U CN206973717U CN 206973717 U CN206973717 U CN 206973717U CN 201720730256 U CN201720730256 U CN 201720730256U CN 206973717 U CN206973717 U CN 206973717U
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Abstract
A kind of new two close cycles engine test air inlet air conditioning device is the utility model is related to, greatly improves the control accuracy of humidity；Condenser coil, air heater, temperature sensor and humidity sensor are disposed with its air inlet pipeline；Humidification pipeline is connected between air heater and temperature sensor；Preheating can, pressure gauge, ratio adjusting valve are disposed with humidification pipeline, the first humidifying pot and the second humidifying pot are set on the pipeline between preheating can and pressure gauge, and the first humidifying pot and the second humidifying pot are arranged in parallel；Pressure sensor and preheating liquid filling bit switch are provided with preheating can；The first moisturizing magnetic valve is provided with pipeline between preheating can and the first humidifying pot；The second moisturizing magnetic valve is provided with pipeline between preheating can and the second humidifying pot；First pressure sensor and the first liquid-level switch are provided with first humidifying pot；Second pressure sensor and the second liquid-level switch are provided with second humidifying pot.
Description
Technical field
The utility model belongs to engine test facility technical field and engine test air inlet air conditioning technical field.
Background technology
According to engine national standard, meet the standard of national standard engine charge, existing engine charge conditional systems belong to
Opened loop control, in seasonal variations, especially northeast winter climate is relatively dried and tap water temperature compares relatively low situation
Under, humid control precision can not meet that the control of engine national standard requires, be unable to reach the control accuracy of requirement.
A kind of engine charge air-conditioner control system, including air intake are disclosed in the patent of Application No. 201521060554.7
Mouth, casing, air outlet, fresh air air-valve, bag filter, pre-add hot coil, surface cooler, heating coil, centrifugal blower and electricity add
Wet device, the casing are connected between air inlet and air outlet, and box house is disposed between air inlet to air outlet
Bag filter, pre-add hot coil, surface cooler, heating coil, centrifugal blower and electric moistening device, on the delivery port of pre-add hot coil
It is provided with motorized adjustment water valve.This device uses non-closed-loop control, can not realize the high accurancy and precision requirement of humid control.
The content of the invention
The present invention provides a kind of new two close cycles engine test air inlet air conditioning device, and humid control precision greatly improves,
The control of engine national standard is met to require.
The purpose of the present invention is achieved through the following technical solutions：
A kind of new two close cycles engine test air inlet air conditioning device, including blower fan 1, condenser coil 2, air heater 3,
Preheating can 4, pressure sensor 5, preheating liquid filling bit switch, moisturizing magnetic valve 7, the first humidifying pot 8, the first liquid-level switch 9, first
Pressure sensor 10, moisturizing magnetic valve 11, the second humidifying pot 12, the second liquid-level switch 13, second pressure sensor 14, pressure gauge
15th, ratio adjusting valve 16, temperature sensor 17, humidity sensor 18 and engine 19；Between described engine 19 and blower fan 1
Air inlet pipeline on 20 be disposed with condenser coil 2, air heater 3, temperature sensor 17 and humidity sensor 18；It is described
Air heater 3 and temperature sensor 17 between be connected with humidification pipeline 21；It is disposed with described humidification pipeline 21
Preheating can 4, pressure gauge 15, ratio adjusting valve 16, the first humidification is set on the pipeline between described preheating can 4 and pressure gauge 15
The humidifying pot 12 of tank 8 and second, the first described humidifying pot 8 and the second humidifying pot 12 are arranged in parallel；Set on described preheating can 4
There are pressure sensor 5 and preheating liquid filling bit switch 6；Is provided with pipeline between the described humidifying pot 8 of preheating can 4 and first
One moisturizing magnetic valve 7；The second moisturizing magnetic valve 11 is provided with pipeline between the described humidifying pot 12 of preheating can 4 and second；
The liquid-level switch 9 of first pressure sensor 10 and first is provided with the first described humidifying pot 8；On the second described humidifying pot 12
It is provided with the liquid-level switch 13 of second pressure sensor 14 and second；Described pressure sensor 5, preheating liquid filling bit switch 6, moisturizing
Magnetic valve 7, the first liquid-level switch 9, first pressure sensor 10, moisturizing magnetic valve 11, the second liquid-level switch 13, second pressure pass
Sensor, ratio adjusting valve 16, temperature sensor 17 and humidity sensor 18 are connected with PLC control system.
The beneficial effects of the utility model are as follows：
The utility model increases double-closed-loop control by conventional gas introduction air-conditioning device, and inner ring uses pressure when being humidifying pot heating
Closed-loop control, adoption rate regulating valve PID regulations, meet national engine standard so as to reach when outer shroud is system humidity control
Humidity requirement.The utility model is applied after engine test, and humid control precision greatly improves, existing humid control essence
For degree when environment temperature is subzero less than 20 DEG C in the winter time, relative humidity control range is more than RH ± 20%, and new two close cycles start
Machine tests air inlet air conditioning device, and relative humidity control range is in RH ± 5%.
Brief description of the drawings
Fig. 1 is fundamental diagram of the present utility model.
Embodiment
Describe specific embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model provides a kind of new two close cycles engine test air inlet air conditioning device, using Delta
Touch-screen remote operation, and jerk and alarm buzzer are carried, using pressure closed loop control humidifier heating, controlled using PLC
Ratio adjusting valve is so as to reach humidity closed-loop, a kind of new two close cycles engine test air inlet air conditioning device, including blower fan 1,
Condenser coil 2, air heater 3, preheating can 4, pressure sensor 5, preheating liquid filling bit switch, moisturizing magnetic valve 7, first humidify
Tank 8, the first liquid-level switch 9, first pressure sensor 10, moisturizing magnetic valve 11, the second humidifying pot 12, the second liquid-level switch 13,
Second pressure sensor 14, pressure gauge 15, ratio adjusting valve 16, temperature sensor 17, humidity sensor 18 and engine 19；Institute
20 are disposed with condenser coil 2, air heater 3, TEMP on air inlet pipeline between the engine 19 and blower fan 1 stated
Device 17 and humidity sensor 18；Humidification pipeline 21 is connected between described air heater 3 and temperature sensor 17；Described
Be disposed with preheating can 4, pressure gauge 15, ratio adjusting valve 16 on humidification pipeline 21, described preheating can 4 and pressure gauge 15 it
Between pipeline on the first humidifying pot 8 and the second humidifying pot 12 are set, the first described humidifying pot 8 and the parallel connection of the second humidifying pot 12 are set
Put；Pressure sensor 5 and preheating liquid filling bit switch 6 are provided with described preheating can 4；Described preheating can 4 and first humidifies
The first moisturizing magnetic valve 7 is provided with pipeline between tank 8；On pipeline between the described humidifying pot 12 of preheating can 4 and second
It is provided with the second moisturizing magnetic valve 11；The liquid level of first pressure sensor 10 and first is provided with the first described humidifying pot 8 to open
Close 9；The liquid-level switch 13 of second pressure sensor 14 and second is provided with the second described humidifying pot 12；Described pressure sensing
Device 5, preheating liquid filling bit switch 6, moisturizing magnetic valve 7, the first liquid-level switch 9, first pressure sensor 10, moisturizing magnetic valve 11,
Second liquid-level switch 13, second pressure sensor, ratio adjusting valve 16, temperature sensor 17 and humidity sensor 18 are and PLC
Control system connects.
The course of work of the present utility model is as follows：
After wind is pumped into system by blower fan 1, after condenser coil 2 cools dehumidifying, then by air-heating unit 3
Air is heated, temperature control feeds back to PLC, PLC control air heaters by the detection of temperature sensor 18
Work.
When system humidity, which is not up to control, to be required, then the steam humidification that humidified pipeline 21 flows out, humid control pass through
Preheating can 4 is preheated, and preheating liquid filling bit switch 6 and pressure sensor 5 feed back to PLC, realize the liquid level and pressure of preheating device
Power is controlled, and humid control is alternately controlled using two heating tanks, and when the first 8 computer heating control of heating tank, the second heating tank 12 stops
Only heat, participate in humidification, so alternately control, the first moisturizing magnetic valve 7 and the second moisturizing magnetic valve 11 follow heating tank to replace
Control, the first heating tank 8 have the first liquid-level switch 9 to protect and control moisturizing, and the second heating tank 12 has the second liquid-level switch 13 to protect
Protect and control moisturizing, the first heating tank 8 increase first pressure sensor 10, pressure closed loop control heating, in order to ensure in jar
Moisture meets the requirement for supplying humid control enough, similarly, the second heating tank 12 increase pressure sensor 14, pressure closed loop control
Heating, the requirement for supplying humid control to ensure the moisture in tank to meet enough, system have pressure gauge 15 to show current humidification
The pressure of gas, PLC is fed back to by humidity sensor 17, so as to control ratio adjusting valve 16, closed-loop control is realized, so as to carry
Requirement for meeting engine 19 national standard intake air temperature, humidity, whole system use full-automatic double-closed-loop control, and with multiple
Safety guard, enable a system to safe and reliable operation.
Through practice have shown that：The system is stable, reliable, significantly improves test efficiency, improves the running rate of laboratory,
Fault rate is reduced, reduces maintenance cost.
Claims (1)
- A kind of 1. new two close cycles engine test air inlet air conditioning device, it is characterised in that：Including blower fan (1), condenser coil (2), air heater (3), preheating can (4), pressure sensor (5), preheating liquid filling bit switch, moisturizing magnetic valve (7), first add Wet tank (8), the first liquid-level switch (9), first pressure sensor (10), moisturizing magnetic valve (11), the second humidifying pot (12), second Liquid-level switch (13), second pressure sensor (14), pressure gauge (15), ratio adjusting valve (16), temperature sensor (17), humidity Sensor (18) and engine (19)；(20) are set gradually on air inlet pipeline between described engine (19) and blower fan (1) There are condenser coil (2), air heater (3), temperature sensor (17) and humidity sensor (18)；Described air heater (3) humidification pipeline (21) is connected between temperature sensor (17)；Preheating is disposed with described humidification pipeline (21) Tank (4), pressure gauge (15), ratio adjusting valve (16), is set on the pipeline between described preheating can (4) and pressure gauge (15) One humidifying pot (8) and the second humidifying pot (12), described the first humidifying pot (8) and the second humidifying pot (12) are arranged in parallel；It is described Preheating can (4) on be provided with pressure sensor (5) and preheating liquid filling bit switch (6)；Described preheating can (4) and the first humidification The first moisturizing magnetic valve (7) is provided with pipeline between tank (8)；Between described preheating can (4) and the second humidifying pot (12) Pipeline on be provided with the second moisturizing magnetic valve (11)；First pressure sensor is provided with described the first humidifying pot (8) And the first liquid-level switch (9) (10)；Second pressure sensor (14) and the second liquid are provided with described the second humidifying pot (12) Bit switch (13)；Described pressure sensor (5), preheating liquid filling bit switch (6), moisturizing magnetic valve (7), the first liquid-level switch (9), first pressure sensor (10), moisturizing magnetic valve (11), the second liquid-level switch (13), second pressure sensor, ratio are adjusted Section valve (16), temperature sensor (17) and humidity sensor (18) are connected with PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730256.7U CN206973717U (en) | 2017-06-22 | 2017-06-22 | A kind of new two close cycles engine test air inlet air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730256.7U CN206973717U (en) | 2017-06-22 | 2017-06-22 | A kind of new two close cycles engine test air inlet air conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973717U true CN206973717U (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730256.7U Active CN206973717U (en) | 2017-06-22 | 2017-06-22 | A kind of new two close cycles engine test air inlet air conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206973717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578633A (en) * | 2019-09-04 | 2019-12-17 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
-
2017
- 2017-06-22 CN CN201720730256.7U patent/CN206973717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578633A (en) * | 2019-09-04 | 2019-12-17 | 无锡沃尔福汽车技术有限公司 | Dual-mode air inlet system |
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