CN203100003U - High-precision automobile engine air intake air-conditioning unit with cold source - Google Patents
High-precision automobile engine air intake air-conditioning unit with cold source Download PDFInfo
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- CN203100003U CN203100003U CN 201320130996 CN201320130996U CN203100003U CN 203100003 U CN203100003 U CN 203100003U CN 201320130996 CN201320130996 CN 201320130996 CN 201320130996 U CN201320130996 U CN 201320130996U CN 203100003 U CN203100003 U CN 203100003U
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Abstract
The utility model relates to a high-precision automobile engine air intake air-conditioning unit with a cold source. The high-precision automobile engine air intake air-conditioning unit comprises a unit air supply control system and a unit refrigeration bypass control system, when the unit air supply control system operates, one part of supplied air is conveyed to an engine for a test through an air supply outlet, and the other part of supplied air is adjusted through an internal circulation air return inlet, an internal circulation air pipe and an internal circulation air valve, flows out through an internal circulation air return outlet, and is mixed with fresh air entering from a fresh air inlet and filtered by a fresh air valve and an air filter of the unit; and when the unit refrigeration bypass control system operates, one vapour exhaust outlet of a compressor is connected with a vapour-liquid mixing head through a fin-type condenser, a liquid supplying stop valve, a drying filter and a liquid supplying electromagnetic valve, and another vapour exhaust outlet of the compressor is connected with a bypass stop valve, and vapour exhaust bypass amount of the compressor bypassed to the vapour-liquid mixing head is adjusted through a bypass control valve. The high-precision automobile engine air intake air-conditioning unit has the advantages of high reaction speed, high control precision, efficiency and energy saving, and suitability for being used stably all the year around under different climatic conditions.
Description
Technical field
The utility model relates to a kind of low-temperature receiver high accuracy car engine air admittance air-conditioning unit that carries.
Background technology
Existing more domestic automobile engine laboratories mainly adopt force ventilation in line, gas handling system to engine also adopts high-power blower directly the temperature of engine to be cooled off, the temperature of laboratory, humidity are difficult to be controlled in the metastable scope, therefore directly influence the performance of engine, seriously restricted the stable performance of homemade engine; In addition, the domestic way that has part automobile factory to adopt refrigeration station supply air-conditioning cold and heat source at present, its effect increases than force ventilation is in line, but still unsatisfactory.
Summary of the invention
The purpose of this utility model is at above-mentioned existing problems, provide that a kind of scene is easy to install, reaction speed is fast, control accuracy is high, energy-efficient, adapt to annual different weather conditions down and stable use carry low-temperature receiver high accuracy car engine air admittance air-conditioning unit.
The purpose of this utility model is achieved in that by unit blasting air control system and unit refrigeration by-pass governing system to be formed;
The unit blasting air control system comprises electric control system, off-premises station, indoor and outdoor connecting pipe road, new air-valve, air cleaner, inner loop air-valve, finned evaporator, heater, humidifier, pressure fan motor, pressure fan and inner loop airduct; During the operation of unit blasting air control system, outdoor new wind enters the air conditioner group by the new air-valve and the air cleaner of fresh inlet by unit after filtering, mix again and by the inner loop return air that inner loop return air outlet is flowed out, mixed air adds wet process by finned evaporator cool-down dehumidification, heater heat temperature raising, humidifier successively, carries out pressurized delivered by air supply motor and pressure fan then; Wherein, a part of air-supply is transported to engine by the air-supply outlet and tests; Another part air-supply is regulated by inner loop return air inlet, inner loop airduct and inner loop air-valve, by the outlet of inner loop return air flow out and with mix by the new air-valve of unit and the new wind of air cleaner filtration by fresh inlet;
Unit refrigeration by-pass governing system comprises compressor, gland steam exhauster, finned cooler, feed flow stop valve, device for drying and filtering, liquid supply electromagnetic valve, feed pipe, expansion valve, vapour-liquid mixing head, finned evaporator, return tube, bypass pipe, bypass cutoff valve and bypass control valve (BCV); The steam discharge outlet of this compressor is divided into two the tunnel, wherein, one road steam discharge by gland steam exhauster with after the inlet of finned cooler is connected, by feed flow stop valve, device for drying and filtering, liquid supply electromagnetic valve, be connected with the inlet of finned evaporator through feed pipe, expansion valve and vapour-liquid mixing head, the outlet of finned evaporator is connected with the inlet of compressor through return tube; Another road steam discharge is connected with the bypass cutoff valve through bypass pipe, and compressor bypass is regulated by bypass control valve (BCV) to the compressor steam discharge bypass amount of vapour-liquid mixing head; When unit refrigeration by-pass governing system moves, the road high-temperature high-pressure refrigerant steam discharge that compressor is discharged enters by gland steam exhauster that heat exchange is cooled to high-temperature high-pressure refrigerant liquid in the finned cooler, the feed flow stop valve of flowing through, device for drying and filtering, liquid supply electromagnetic valve, after entering expansion valve and carry out the throttling step-down by feed pipe, by the vapour-liquid mixing head with by bypass pipe, the bypass cutoff valve, another road steam discharge of the compressor that bypass control valve (BCV) flows out mixes, enter finned evaporator heat absorption evaporation again, become the low-temp low-pressure gas and get back to compressor, finish a kind of refrigeration cycle by return tube.
The utility model has following good effect:
1), because the measure of adopting interior section return air and new wind to mix, not only the unit good looking appearance is on-the-spot easy to install, and can be good at solving outdoor new wind and change influence to the unit blasting air precision;
2), because Crew Cooling System adopts the mode of by-pass governing, not only can regulate the refrigerating capacity of unit on a large scale, avoid conventional full envelope compressor to have only the shortcoming of start-stop control, can control the refrigerating capacity of unit fast and accurately, thereby improve the control accuracy and the reaction speed of unit, and can reduce heat again, realize the energy-efficient operation of unit;
3), air supply control system and refrigeration by-pass governing system coordination cooperate, and can realize unit high accuracy air-supply Temperature and Humidity Control; Control range: temperature control (24～27) ± 1 ℃, relative temperature control (45～70) ± 5%; Standard condition: 25 ± 1 ℃ of temperature, relative humidity 50 ± 5%; The time is regulated in variable working condition: temperature, relative humidity≤120s; Can satisfy the high-precision requirement of automobile engine performance test to the air inlet air-conditioning.
The utility model, have on-the-spot easy to install, reaction speed is fast, control accuracy is high, energy-efficient, adapt to annual different weather conditions down and the stable advantage of using.Can be widely used in units such as various automobile production producer, engine production producer, the relevant supporting producer of engine, scientific research institutions, institution of higher learning.
Following embodiment is further described the utility model in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the structure principle chart of the unit blasting air control system of an embodiment of the present utility model;
Fig. 2 is the unit refrigeration by-pass governing systematic schematic diagram of Fig. 1 embodiment.
Among the figure, 1, electric control system; 2, off-premises station; 3, indoor and outdoor connecting pipe road; 4, new air-valve; 5, air cleaner; 6, inner loop air-valve; 7, finned evaporator; 8, heater; 9, humidifier; 10, pressure fan motor; 11, pressure fan; 12, inner loop airduct; A11, fresh inlet; A12, air-supply outlet; A13, inner loop return air inlet; A14, the outlet of inner loop return air; 13, compressor; 14, gland steam exhauster; 15, finned cooler; 16, feed flow stop valve; 17, device for drying and filtering; 18, liquid supply electromagnetic valve; 19, feed pipe; 20, expansion valve; 21, vapour-liquid mixing head; 22, return tube; 23, bypass pipe; 24, bypass cutoff valve; 25, bypass control valve (BCV).
The specific embodiment
Referring to figs. 1 through Fig. 2, present embodiment is a kind of low-temperature receiver high accuracy car engine air admittance air-conditioning unit that carries, and is made up of unit blasting air control system and unit refrigeration by-pass governing system; The unit blasting air control system comprises electric control system 1, off-premises station 2, indoor and outdoor connecting pipe road 3, new air-valve 4, air cleaner 5, inner loop air-valve 6, finned evaporator 7, heater 8, humidifier 9, pressure fan motor 10, pressure fan 11 and inner loop airduct 12; During the operation of unit blasting air control system, outdoor new wind enters the air conditioner group by the new air-valve 4 and the air cleaner 5 of fresh inlet A11 by unit after filtering, export the inner loop return air mixing that A14 flows out again and by inner loop return air, mixed air adds wet process by finned evaporator 7 cool-down dehumidifications, heater 8 heat temperature raisings, humidifier 9 successively, carries out pressurized delivered by air supply motor 10 and pressure fan 11 then; Wherein, a part of air-supply is transported to engine by air-supply outlet A12 and tests; Another part air-supply is regulated by inner loop return air inlet A13, inner loop airduct 12 and inner loop air-valve 6, by inner loop return air outlet A14 flow out and with mix by the new air-valve 4 of unit and the new wind of air cleaner 5 filtrations by fresh inlet A11; Unit refrigeration by-pass governing system comprises compressor 13, gland steam exhauster 14, finned cooler 15, feed flow stop valve 16, device for drying and filtering 17, liquid supply electromagnetic valve 18, feed pipe 19, expansion valve 20, vapour-liquid mixing head 21, finned evaporator 7, return tube 22, bypass pipe 23, bypass cutoff valve 24 and bypass control valve (BCV) 25; The steam discharge outlet of this compressor 13 is divided into two the tunnel, wherein, after one road steam discharge passes through gland steam exhauster 14 and the inlet of finned cooler 15 is connected, by feed flow stop valve 16, device for drying and filtering 17, liquid supply electromagnetic valve 18, be connected through feed pipe 19, expansion valve 20 and the inlet of vapour-liquid mixing head 21 with finned evaporator 7, the outlet of finned evaporator is connected with the inlet of compressor through return tube 22; Another road steam discharge is connected with bypass cutoff valve 24 through bypass pipe 23, and compressor bypass is regulated by bypass control valve (BCV) 25 to the compressor steam discharge bypass amount of vapour-liquid mixing head 21; When unit refrigeration by-pass governing system moves, the road high-temperature high-pressure refrigerant steam discharge that compressor 13 is discharged enters by gland steam exhauster 14 that heat exchange is cooled to high-temperature high-pressure refrigerant liquid in the finned cooler 15, the feed flow stop valve 16 of flowing through, device for drying and filtering 17, liquid supply electromagnetic valve 18, after entering expansion valve 20 and carry out the throttling step-down by feed pipe 19, by vapour-liquid mixing head 21 with by bypass pipe 23, bypass cutoff valve 24, another road steam discharge of the compressor that bypass control valve (BCV) 25 flows out mixes, enter finned evaporator 7 heat absorption evaporations again, become the low-temp low-pressure gas and get back to compressor 13, finish a kind of refrigeration cycle by return tube 22.
The utility model, the coordination that inside return air circulation is regulated, unit freezes by-pass governing and other function by unit is regulated, unit can be implemented under the situation that carries low-temperature receiver, has fast (the air-conditioning system start stabilization time≤30min of reaction speed, variable working condition regulate time≤120s), control accuracy height (annual temperature ± 1 ℃ of guaranteeing, wet ± 5% relatively), can satisfy the requirement of stablizing the high accuracy air inlet air-conditioning unit that uses under the different weather conditions of automobile engine test requirements document in the whole year.
Claims (1)
1. one kind carries low-temperature receiver high accuracy car engine air admittance air-conditioning unit, it is characterized in that: be made up of unit blasting air control system and unit refrigeration by-pass governing system;
Described unit blasting air control system comprises electric control system (1), off-premises station (2), indoor and outdoor connecting pipe road (3), new air-valve (4), air cleaner (5), inner loop air-valve (6), finned evaporator (7), heater (8), humidifier (9), pressure fan motor (10), pressure fan (11) and inner loop airduct (12); During the operation of unit blasting air control system, outdoor new wind enters the air conditioner group by the new air-valve (4) and the air cleaner (5) of fresh inlet (A11) by unit after filtering, mix again and by the inner loop return air that inner loop return air outlet (A14) is flowed out, mixed air adds wet process by finned evaporator (7) cool-down dehumidification, heater (8) heat temperature raising, humidifier (9) successively, carries out pressurized delivered by air supply motor (10) and pressure fan (11) then; Wherein, a part of air-supply exports (A12) by air-supply and is transported to engine and tests; Another part air-supply is regulated by inner loop return air inlet (A13), inner loop airduct (12) and inner loop air-valve (6), by inner loop return air outlet (A14) flow out and with mix by the new air-valve (4) of unit and the new wind of air cleaner (5) filtration by fresh inlet (A11);
Described unit refrigeration by-pass governing system comprises compressor (13), gland steam exhauster (14), finned cooler (15), feed flow stop valve (16), device for drying and filtering (17), liquid supply electromagnetic valve (18), feed pipe (19), expansion valve (20), vapour-liquid mixing head (21), finned evaporator (7), return tube (22), bypass pipe (23), bypass cutoff valve (24) and bypass control valve (BCV) (25); The steam discharge outlet of this compressor (13) is divided into two the tunnel, wherein, after one road steam discharge passes through gland steam exhauster (14) and the inlet of finned cooler (15) is connected, by feed flow stop valve (16), device for drying and filtering (17), liquid supply electromagnetic valve (18), be connected through feed pipe (19), expansion valve (20) and the inlet of vapour-liquid mixing head (21) with finned evaporator (7), the outlet of finned evaporator is connected with the inlet of compressor through return tube (22); Another road steam discharge is connected with bypass cutoff valve (24) through bypass pipe (23), and compressor bypass is regulated by bypass control valve (BCV) (25) to the compressor steam discharge bypass amount of vapour-liquid mixing head (21); When unit refrigeration by-pass governing system moves, the road high-temperature high-pressure refrigerant steam discharge that compressor (13) is discharged enters the middle heat exchange of finned cooler (15) by gland steam exhauster (14) and is cooled to high-temperature high-pressure refrigerant liquid, the feed flow stop valve (16) of flowing through, device for drying and filtering (17), liquid supply electromagnetic valve (18), after entering expansion valve (20) and carry out the throttling step-down by feed pipe (19), by vapour-liquid mixing head (21) with by bypass pipe (23), bypass cutoff valve (24), another road steam discharge of the compressor that bypass control valve (BCV) (25) flows out mixes, enter finned evaporator (7) heat absorption evaporation again, become the low-temp low-pressure gas and get back to compressor (13), finish a kind of refrigeration cycle by return tube (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130996 CN203100003U (en) | 2013-03-21 | 2013-03-21 | High-precision automobile engine air intake air-conditioning unit with cold source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130996 CN203100003U (en) | 2013-03-21 | 2013-03-21 | High-precision automobile engine air intake air-conditioning unit with cold source |
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| Publication Number | Publication Date |
|---|---|
| CN203100003U true CN203100003U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130996 Withdrawn - After Issue CN203100003U (en) | 2013-03-21 | 2013-03-21 | High-precision automobile engine air intake air-conditioning unit with cold source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175263A (en) * | 2013-03-21 | 2013-06-26 | 广东吉荣空调有限公司 | High-accuracy automobile engine air inlet air conditioner unit with cold source |
-
2013
- 2013-03-21 CN CN 201320130996 patent/CN203100003U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175263A (en) * | 2013-03-21 | 2013-06-26 | 广东吉荣空调有限公司 | High-accuracy automobile engine air inlet air conditioner unit with cold source |
| CN103175263B (en) * | 2013-03-21 | 2015-01-14 | 广东吉荣空调有限公司 | High-accuracy automobile engine air inlet air conditioner unit with cold source |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150114 |
|
| RGAV | Abandon patent right to avoid regrant |