CN103698129A - Engine heat balance test system and temperature control device thereof - Google Patents
Engine heat balance test system and temperature control device thereof Download PDFInfo
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- CN103698129A CN103698129A CN201310675630.4A CN201310675630A CN103698129A CN 103698129 A CN103698129 A CN 103698129A CN 201310675630 A CN201310675630 A CN 201310675630A CN 103698129 A CN103698129 A CN 103698129A
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Abstract
The invention discloses a temperature control device which is used for an engine heat balance test system with a test room. The temperature control device is provided with an air inlet duct and an air outlet duct, wherein the air inlet duct is used for gas to flow in, the air outlet duct is used for the gas to flow out, and the air inlet duct and the air outlet duct are communicated with the test room; the air inlet duct is provided with a temperature adjusting part for adjusting the temperature of the gas, and the temperature adjusting part comprises a cooler for cooling the gas and a heater for heating the gas; and the gas can be exhausted through the air outlet duct after the gas flows into the test room through the air inlet air duct and the temperature regulating part in sequence. An industrial air conditioner is replaced by the cooler and the heater, the gas can be heated or cooled according to a test requirement, the temperature of test gas can be controlled, thus the measuring can be carried out by maintaining the temperature for a long time, and the test accuracy can be increased; a large-unit air conditioner for heating the gas is prevented from being redesigned, and the test cost is reduced; the sizes of the cooler and the heater are smaller than the size of the industrial air conditioner, and the installation is convenient. The invention also disclosed the engine heat balance test system.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of Engine Heat Balance Test System and attemperating unit thereof.
Background technology
Engine Heat Balance test be engine under running status, the test that its energy distribution situation is carried out.
Typical Engine Heat Balance Test System comprises tested engine and some testing apparatuss.Engine Heat Balance is tested on the stand of being everlasting and is carried out, and in airtight space, it is between 45 degrees Celsius to 55 degrees Celsius that test ambient temperature requires.Stand does not have temperature control system, and the temperature that cannot accurately, stably control environment, can only simply rely on engine to dispel the heat in the course of the work, and obtains the temperature of requirement.
When ambient temperature is lower, engine needs the driving preheating of long period, and, such heating mode can not maintain the temperature meeting the demands for a long time, when temperature meets the requirements of temperature, need image data immediately, otherwise temperature will continue to rise to more than 55 degrees Celsius, and can not proceed to test.Now, kill engine, wait for that the temperature in test space is cooled to while reaching again the temperature meeting the demands, can measure again.So, there is following shortcoming:
The first, test period is longer;
The second, test temperature is uncontrollable, can not for a long time, stably maintain the temperature meeting the demands, accuracy that cannot warranty test data.
Existing industrial air-conditioning can't meet gas-heated to 45 degree Celsius to 55 degrees Celsius, if air-conditioning heating is applied to Engine Heat Balance test, also needs to redesign, and increases cost; And, owing to adding heat and refrigerating capacity is huge, need to adopt large air conditioning unit, cost is higher, is also not easy to mate with test unit.
In addition, testing apparatus is positioned in the test bay of engine, and the temperature of experimental enviroment is generally higher, and testing apparatus can not effectively be moved under the condition higher than 45 degrees Celsius, greatly shorten the serviceable life of testing apparatus.
Therefore, how to make the test ambient temperature of Engine Heat Balance Test System controlled, and reduce costs, easy for installation, be those skilled in the art's technical issues that need to address.
Summary of the invention
Object of the present invention is for providing a kind of Engine Heat Balance Test System and attemperating unit thereof.This attemperating unit is easy for installation, and can make the test ambient temperature of Engine Heat Balance Test System controlled, with low cost.
For solving the problems of the technologies described above, the invention provides a kind of attemperating unit, for having the Engine Heat Balance Test System of test bay, described attemperating unit has the wind inlet channel of supplied gas inflow and the wind output channel of outflow, and is communicated with described test bay; On described wind inlet channel, be provided with the temperature adjustment portion of adjustments of gas temperature, described temperature adjustment portion comprises the refrigeratory of cooling described gas, and the well heater that heats described gas; Described gas flows through described wind inlet channel, described temperature adjustment portion successively to described test bay, by described wind output channel, discharges.
This attemperating unit has the following advantages:
The first, with refrigeratory and well heater, replace industrial air-conditioning, can make test gas temperature controlled, thereby holding temperature be for measurement for a long time according to testing requirements heating or refrigerating gas, improve the accuracy of test;
The second, avoid redesigning large air conditioning unit heated air, reduce experimentation cost;
The 3rd, refrigeratory and well heater volume are little compared with industrial air-conditioning, easy for installation.
Preferably, described attemperating unit also comprises electric control part, and described electric control part is set predetermined temperature, and in conjunction with the actual temperature in described test bay, controls described temperature adjustment portion and regulate described gas temperature, so that described test bay reaches described predetermined temperature.
Preferably, on described wind inlet channel, be provided with air intake blower fan, on described wind output channel, be provided with exhaust fan.
Preferably, described attemperating unit also comprises the return airway that connects described wind inlet channel and described wind output channel, and the described gas in described wind output channel can enter described wind inlet channel by described return airway, and flows to described temperature adjustment portion.
Preferably, described wind output channel and/or described return airway are provided with Electric air valve, and described Electric air valve opens and closes, so that described gas is discharged described attemperating unit by described wind output channel, or flow to described temperature adjustment portion by described return airway.
Preferably, described attemperating unit also comprises Electric air valve, and primary air separating duct and rear air channel;
Described Electric air valve opens and closes, so that described wind inlet channel is communicated with described test bay by described primary air separating duct, described wind output channel is communicated with described test bay by described rear air channel; Or described wind inlet channel is communicated with described test bay by described rear air channel, described wind output channel is communicated with described test bay by described primary air separating duct.
Preferably, described primary air separating duct and described rear air channel include the main pipeline that is connected in described wind inlet channel and described wind output channel, and the branch pipe(tube) being communicated with described main pipeline, and described test bay is communicated with described main pipeline by described branch pipe(tube).
Preferably, described branch pipe(tube) is provided with fireproofing electric valve.
The present invention also provides a kind of Engine Heat Balance Test System, comprises tested engine, also comprises the test bay that holds described engine, and the attemperating unit as described in above-mentioned any one, and described attemperating unit is connected with described test bay.
This Engine Heat Balance Test System has the beneficial effect identical with above-mentioned attemperating unit.
Preferably, also comprise freezing water tank, described freezing water tank loads chilled water, and during refrigerating gas, described chilled water flows to described refrigeratory from described freezing water tank.
Preferably, also comprise testing apparatus and the equipment room that holds described testing apparatus, described equipment room is adjacent with described test bay, has separating part between the two.
This pilot system is separated setting by test bay and equipment room, and at high temperature working condition is bad to avoid testing apparatus, thereby guarantees work efficiency and the serviceable life of testing apparatus.
Preferably, described separating part is detachable.
Preferably, described separating part comprises soundproof door or sound proof window.
Preferably, also comprise the track that is arranged at described equipment room and described test bay inside top, the described track described test bay that can stretch out or retract.
Preferably, also comprise control panel, hold between the control of described control panel, and be the power distribution cabinet of described pilot system power supply, described test bay, described equipment room, and between described control, be provided with described power distribution cabinet and be connected, and can operate the control box of described power distribution cabinet.
Preferably, also comprise casing, between described test bay, described equipment room and described control, by described casing, cut apart and form.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of a kind of embodiment of Engine Heat Balance Test System provided by the invention, attemperating unit provided by the invention is shown and is connected in test bay;
Fig. 2 is the structural representation sketch of a kind of embodiment of attemperating unit provided by the invention, gas is shown and in described attemperating unit, flows;
Fig. 3 is the spatial structure sketch at A position in Fig. 2, the primary air separating duct of attemperating unit, rear air channel is shown and is communicated with the front air port of test bay, rear air port respectively, and front air port air intake, the air draft of rear air port;
Fig. 4 is the spatial structure sketch at A position in Fig. 2, the primary air separating duct of attemperating unit, rear air channel is shown and is communicated with the front air port of test bay, rear air port respectively, and the air draft of front air port, rear air port air intake.
Fig. 1-4:
1 engine, 2 attemperating units, 3 test bays, 4 equipment rooms, between 5 controls, 6 tracks, 7 separating parts, 8 power distribution cabinets, 21 temperature adjustment portions, 22 electric control part, 23 air intake blower fans, 24 exhaust fans, 25 wind inlet channels, 26 wind output channels, 27 primary air separating ducts, 28 rear air channels, 29 return airways, 31 front air ports, 32 rear air ports, 211 refrigeratorys, 212 well heaters, 213 temperature-sensing valves, 214 water inlet pipes, 215 rising pipes, 221 first temperature controllers, 222 second temperature controllers, 251 wind inlet sections, 261 exhaustion sections, 262 air return sections, 2781 main pipelines, 2782 branch pipe(tube)s, a the first Electric air valve, b the second Electric air valve, c the 3rd Electric air valve, d the 4th Electric air valve, e the 5th Electric air valve, f the 6th Electric air valve, g fireproofing electric valve
Embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, the longitudinal sectional view of a kind of embodiment that Fig. 1 is Engine Heat Balance Test System provided by the invention, illustrates attemperating unit provided by the invention and is connected in test bay.Fig. 1 only illustrates the cross-section structure of wind inlet channel one side, and the cross-section structure of wind output channel one side is similar with it.
As shown in Figure 1, this pilot system comprises tested engine 1, holds test bay 3, the testing apparatus of this engine 1, and the equipment room 4 that holds this testing apparatus, the setting adjacent with equipment room 4 of above-mentioned test bay 3, and between the two, there is separating part 7.
This pilot system is separated test bay 3 to arrange with equipment room 4, and at high temperature working condition is bad to avoid testing apparatus, thereby guarantees work efficiency and the serviceable life of testing apparatus.
Above-mentioned separating part 7 removably arranges, and to facilitate installation, the replacing of engine 1 and testing apparatus etc., and operating personnel overhaul equipment.
Above-mentioned separating part 7 can also comprise soundproof door and sound proof window etc., with effectively avoid the noise of test bay 3 to leak into equipment room 4 outward and control between 5, guarantee working environment when operating personnel operate electric-control system or repair apparatus.
Further, this pilot system also comprises control panel and holds between the control of this control panel 5, between control, 5 carry out for operating personnel's Control experiment, also comprise power distribution cabinet 8, this power distribution cabinet 8 is used to test power supply, between above-mentioned test bay 3, equipment room 4 and control, 5 all have control box, and each control box is for controlling the power supply situation of associated operation room.
So, each control box is equivalent to the branch system of power distribution cabinet 8, facilitates the power supply situation of each operation room of Long-distance Control.
Between the said equipment 4, test bay 3 and control between 5 (being referred to as below operation room) can form as follows:
One casing is divided into three chambers, these three chambers be followed successively by test bay 3, equipment room 4 and control between 5, between each chamber, can adopt the separations such as soundproof door, sound proof window of similar above-mentioned separating part 7, and removably be connected in casing.Certainly, each operation room split setting is also fine, by three independently between chamber be spliced.Just, above-mentioned integral design makes each operation room structure neat, and overall construction intensity is higher, survivable compared with split-type structural.
Above-mentioned casing can be non-standard container.Non-standard container size is larger and variable, can be conveniently used in the engine test of large discharge capacity, and can be by handling to appointed place, and mobility is strong.
Below the closed region of each operation room is defined as to " interior ", otherwise open area is defined as " outward ".
The top of test bay 3 and equipment room 4 inner sides can also be provided with track 6, and this track 6 can controllably stretch out described test bay 3 outside preset distances, and retracts as required.When needs hoisting large-size equipment enters test bay 3 or equipment room 4, this track 6 is overhanging; After being installed by hanging device relative orbit 6, along this track 6, slide to test bay 3 or equipment room 4, be positioned over precalculated position; Afterwards, track 6 is set back in test bay 3 inside.So, facilitate equipment handling, especially with the equipment of test bay 3 apart from each others.
Above-mentioned track 6 can be single track, and along between piercing test 3 and the centerline setting of equipment room 4; Also can be set to double track, this double track can be symmetrical about above-mentioned center line, and further between this double track, traverse rod is set, and so, handling appliance is more steady, and handling ability increases.Certainly, can also there is the more track 6 of number.
Please refer to Fig. 2, Fig. 2 is the structural representation sketch of a kind of embodiment of attemperating unit provided by the invention, gas is shown and in described attemperating unit, flows.
Above-mentioned pilot system also comprises the attemperating unit 2 being communicated with test bay 3, this attemperating unit 2 is communicated with test bay 3, and there is the wind inlet channel 25 that supplied gas flows into test bay 3, and supplied gas flows out the wind output channel 26 (as shown in Figure 2) of test bay 3, on above-mentioned wind inlet channel 25, be provided with the temperature adjustment portion 21 for adjustments of gas temperature, this temperature adjustment portion 21 comprises the refrigeratory 211 of refrigerating gas, and the well heater 212 of heated air.The gas that enters described attemperating unit 2 passes through this wind inlet channel 25, temperature adjustment portion 21 successively until described test bay 3 is finally discharged by wind output channel 26.
In this embodiment, first the gas of wanting to enter described test bay 3 pass through refrigeratory 211 or the well heater 212 of temperature adjustment portion 21, and the gas after temperature adjustment is transported to test bay 3.So, have the following advantages:
The first, with refrigeratory 211 and well heater 212, replace industrial air-conditioning, can make test gas temperature controlled, thereby holding temperature be for measurement for a long time according to testing requirements heating or refrigerating gas, improve the accuracy of test;
The second, avoid redesigning large air conditioning unit heated air, reduce experimentation cost;
The 3rd, refrigeratory 211 is little compared with industrial air-conditioning, easy for installation with well heater 212 volumes.
Further, this Engine Heat Balance Test System can also comprise freezing water tank, and this freezing water tank is used for loading industrial chilled water, for above-mentioned refrigeratory 211, uses.While utilizing chilled water refrigerating gas, chilled water flows into refrigeratory 211 from freezing water tank, after the heat of described gas is taken away, flows out refrigeratory 211 and reaches the object of refrigerating gas.
This freezing water tank is to the well-off chilled water of test, and warranty test can carry out smoothly; And this freezing water tank can also be simultaneously for other pilot systems, one case multiplex, reduces experimentation cost.
Further, this attemperating unit 2 can also comprise for controlling the electric control part 22 of its electric power system, in above-mentioned test bay 3, be furnished with temperature sensor, temperature signal between acquisition test in 3 passes to this electric control part 22, thereby electric control part 22 obtains the actual temperature of test bay 3, and in conjunction with predefined predetermined temperature, control temperature adjustment portion 21 with adjustments of gas temperature.
It should be noted that, the position of the electric control part 22 shown in Fig. 2 is not its actual putting position, and Fig. 2 is only its principle of work schematic diagram.
As shown in Figure 2, electric control part 22 can also have the first temperature controller 221 and the second temperature controller 222 that predetermined temperature is set.Refrigeratory 211 has water inlet pipe 214 and rising pipe 215, temperature-sensing valve 213 (only illustrate in Fig. 2 on water inlet pipe 214 be provided with temperature-sensing valve 213) is installed on water inlet pipe 214 and/or rising pipe 215, for regulating the flow of chilled water, rising pipe 215 is for discharging chilled water in refrigeratory 211.The temperature-sensing valve 213 of take is installed on water inlet pipe 214 as example, and specific works process is as follows:
The first temperature controller 221 and the second temperature controller 222 arrange identical predetermined temperature, and this predetermined temperature is testing requirements temperature, such as, the predetermined value in 45 degrees Celsius to 55 degrees Celsius intervals as stated in the Background Art, or predetermined range value.
Actual temperature in test bay 3 is during higher than predetermined temperature, and the first temperature controller 221 opening temp. control valves 213, make chilled water enter refrigeratory 211, the second temperature controllers 222 and cut out well heater 212; Along with chilled water is interior mobile at refrigeratory 211, gas temperature reduces, and the first temperature controller 221 regulates the aperture size of temperature-sensing valves 213, until gas temperature reaches predetermined temperature; Gas after cooling is conveyed into test bay 3.
Actual temperature in test bay 3 is during lower than predetermined temperature, the first temperature controller 221 is closed temperature-sensing valve 213, stop chilled water to enter refrigeratory 211, the second temperature controller 222 heater 212, along with gas temperature raises, the second temperature controller 222 regulates the degree of heat of well heater 212, until gas temperature reaches predetermined temperature, the gas after heating is conveyed into test bay 3.As mentioned above, electric control part 22 is controlled temperature adjustment portion 21 and is regulated the gas temperature that is conveyed into test bay 3.
Certainly, above-mentioned temperature-sensing valve 213 can also be arranged on rising pipe 215, or water inlet pipe 214 is provided with temperature-sensing valve 213 with rising pipe 215, and principle of work and such scheme are similar, do not repeat them here.
Like this, electric control part 22 can be combined predetermined temperature with the actual temperature of test bay 3, and the gas that enters test bay 3 is changed at any time according to actual tests situation, regulate at any time temperature with adequacy test requirement, automaticity is higher, and test efficiency is higher, can meet carrying out smoothly of test.
Also set temperature sensor not in test bay 3, and adopt other schemes that the temperature signal in test bay 3 is passed to electric control part 22, for example, artificial image data at set intervals, by this data input electric control part 22; Or, also electric control part 22 can be set, just in test, carrying out middle random acquisition test bay 3 gases carries out temperature survey, when gas temperature does not meet testing requirements, manual control temperature adjustment portion 21, compare, obviously the mode of electric control part 22 and temperature sensor combination has realized the control of robotization accurately, and work efficiency is higher.
As shown in Figure 2, on above-mentioned wind inlet channel 25 and wind output channel 26, can also be respectively arranged with air intake blower fan 23 and exhaust fan 24, the two can improve gaseous tension, is conducive to conveying and the output of gas.
In conjunction with Fig. 1, between following define equipment, 4 one sides are " front ", and test bay 3 one sides are " afterwards ", and in Fig. 1 to Fig. 2, a left side is " front ", and the right side is " afterwards ".
Can also do further improvement to attemperating unit 2 provided by the invention.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the spatial structure sketch at A position in Fig. 2, the primary air separating duct of attemperating unit, rear air channel are shown and are communicated with the front air port of test bay, rear air port respectively, and front air port air intake, the air draft of rear air port; Fig. 4 is the spatial structure sketch at A position in Fig. 2, the primary air separating duct of attemperating unit, rear air channel is shown and is communicated with the front air port of test bay, rear air port respectively, and the air draft of front air port, rear air port air intake.In figure, each lines illustrate each air channel annexation, arrow to illustrate the gas flow that it is inner.
As shown in Figure 3,4, this attemperating unit 2 can also comprise the primary air separating duct 27 and rear air channel 28 being all communicated with test bay 3, wind inlet channel 25 and wind output channel 26, for sake of convenience, below the wind inlet channel 25 between primary air separating duct 27 and rear air channel 28 and wind output channel 26 are called to wind inlet section 251 and exhaustion section 261.Test bay 3 is front air port 31 with the interface of primary air separating duct 27, with the interface in rear air channel 28 be rear air port 32.
As shown in Figure 3,4, primary air separating duct 27 all has main pipeline 2781 with rear air channel 28, and the branch pipe(tube) 2782 being communicated with described main pipeline 2781, the branch pipe(tube) 2782 of the two is communicated with 31Ji Hou air port, front air port 32 respectively, and main pipeline 2781 is all communicated with wind inlet section 251 and exhaustion section 261.Main pipeline 2781 and wind inlet section 251 junctions of primary air separating duct 27 have the first Electric air valve a, have the 4th Electric air valve d with the junction of exhaustion section 261; The main pipeline 2781 in rear air channel 28 has the second Electric air valve b with the junction of wind inlet section 251, has the 3rd Electric air valve c with the junction of exhaustion section 261.The second Electric air valve b, the 3rd Electric air valve c can also be arranged at respectively wind inlet section 251 and exhaustion section 261, as long as air channel 28 is to the path of wind inlet channel 25 and wind output channel 26 after can break-make.
As shown in Figure 3, the second Electric air valve b, the 4th Electric air valve d close, and when the first Electric air valve a, the 3rd Electric air valve c open, gas enters primary air separating duct 27 from the wind inlet channel 25 first Electric air valve a that flows through, by front air port 31, enter test bay 3, as solid arrow in figure; Gas in test bay 3 enters rear air channel 28 by rear air port 32, and the 3rd Electric air valve c that flows through enters exhaustion section 261, enters wind output channel 26, as dotted arrow in figure.
As shown in Figure 4, the first Electric air valve a, the 3rd Electric air valve c close, when the second Electric air valve b, the 4th Electric air valve d open, gas enters wind inlet section 251 from wind inlet channel 25, the second Electric air valve b that flows through enters rear air channel 28, enters test bay 3, as solid arrow in figure by rear air port 32; Gas in test bay 3 enters primary air separating duct 27 by front air port 31, and the 4th Electric air valve d that flows through enters wind output channel 26, as dotted arrow in figure.
So not only can complete smoothly supply, replacing and the discharge of test bay 3 gases, can also switch the flow direction of gas, 3 wind direction between Control experiment; In addition, by controlling the parameters such as wind speed into, air draft, temperature, the temperature field that can simulate car load distributes, and the test that adapts to the engine 1 of different model.
The present invention is not specifically limited the number in 31Yu Hou air port, above-mentioned front air port 32, all can be one, and this 31Ji Hou air port, front air port 32 is directly communicated with branch pipe(tube) 2782 respectively; Also can be several, these several 31Ji Hou air port, front air port 32 be communicated with branch pipe(tube) 2782 indirectly by connecting line respectively.
As shown in Figure 3,4, fireproofing electric valve g can also be set on described branch pipe(tube) 2782.This fireproofing electric valve g and above-mentioned air intake blower fan 23 and fire plant interlock, branch pipe(tube) 2782 is directly communicated with test bay 3, while there is the condition of a fire, the interior temperature of test bay 3 is higher than predetermined value, fireproofing electric valve g can this temperature of Measurement accuracy, is quick on the draw, thereby opens fire plant fast, close blower fan, guarantee job security.Be arranged at main pipeline 2781 and be also fine, just, need to this fireproofing electric valve g be all installed in above-mentioned main pipeline 2781 and wind inlet channel 25 and wind output channel 26 connectivity parts, to guarantee to switch the fireproofing function after wind direction, fireproofing electric valve g number increases to some extent.
Above-described embodiment is all connected to example with test bay 3 by primary air separating duct 27, rear air channel 28 with wind inlet channel 25, wind output channel 26, and certainly, this connected mode can also be other forms.Take as shown in Fig. 3,4 to have the test bay 3 in air port 32 after two front air ports 31 and two be example, wind inlet channel 25 can have respectively 4 air intake branch roads and air draft branch road with wind output channel 26, and each 31Ji Hou air port, front air port 32 is all communicated with an air intake branch road and an air draft branch road; And, on each branch road, be provided with solenoid valve, with 3 interior gas flows between Control experiment.Compare, have the embodiment in primary air separating duct 27 and rear air channel 28, piping arrangement is more convenient, clean and tidy, saves material, reduces costs.
Further, as shown in Figure 2, this attemperating unit 2 can also comprise the return airway 29 that connects described wind inlet channel 25 and wind output channel 26, the gas that flows into wind output channel 26 from test bay 3 can also flow back to wind inlet channel 25 to temperature adjustment portion 21 by this return airway 29, after temperature adjustment, gas enters test bay 3 and continues for test used.
Being provided with of this return airway 29 is beneficial to recycling of gas, from test bay 3 effluent air temperature, compared with the temperature of external environment gas, more press close to testing requirements, its temperature can meet testing requirements next time through trickle adjusting, so saves test period and cost.
Particularly, the wind output channel between return airway 29 and external environment 26 is called to air return section 262, on above-mentioned return airway 29 and air return section 262, can be respectively arranged with the 5th Electric air valve e and the 6th Electric air valve f.The 5th Electric air valve e opens, and when the 6th Electric air valve f closes, from test bay 3 effluent airs, can enter wind inlet channel 25 by return airway 29; Otherwise described gas flows to external environment by air return section 262.
So, the gas flow of discharging from test bay 3 is controlled, more flexible to the control of Test condition.In addition, only in air return section 262 and return airway 29 the two one of Electric air valve be set be also fine, just.For the flow direction of test gas, control effect slightly poor.
Engine Heat Balance Test System provided by the invention is owing to having above-mentioned attemperating unit 2, so also have the beneficial effect identical with described attemperating unit 2.
Above a kind of Engine Heat Balance Test System provided by the present invention and attemperating unit thereof are all described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (16)
1. an attemperating unit, be used for the thering is test bay Engine Heat Balance Test System of (3), it is characterized in that, described attemperating unit (2) has the wind inlet channel (25) of supplied gas inflow and the wind output channel (26) flowing out, and is communicated with described test bay (3); On described wind inlet channel (25), be provided with the temperature adjustment portion (21) of adjustments of gas temperature, described temperature adjustment portion (21) comprises the refrigeratory (211) of cooling described gas, and the well heater (212) that heats described gas;
Described gas flows through described wind inlet channel (25), described temperature adjustment portion (21) successively to described test bay (3), by described wind output channel (26), discharges.
2. attemperating unit as claimed in claim 1, it is characterized in that, described attemperating unit (2) also comprises electric control part (22), described electric control part (22) is set predetermined temperature, and in conjunction with the actual temperature in described test bay (3), control described temperature adjustment portion (21) and regulate described gas temperature, so that described test bay (3) reaches described predetermined temperature.
3. attemperating unit as claimed in claim 1, is characterized in that, is provided with air intake blower fan (23) on described wind inlet channel (25), is provided with exhaust fan (24) on described wind output channel (26).
4. attemperating unit as claimed in claim 1, it is characterized in that, described attemperating unit (2) also comprises the return airway (29) that connects described wind inlet channel (25) and described wind output channel (26), described gas in described wind output channel (26) can enter described wind inlet channel (25) by described return airway (29), and flows to described temperature adjustment portion (21).
5. attemperating unit as claimed in claim 4, it is characterized in that, described wind output channel (26) and/or described return airway (29) are provided with Electric air valve, described Electric air valve opens and closes, so that described gas is discharged described attemperating unit (2) by described wind output channel (26), or flow to described temperature adjustment portion (21) by described return airway (29).
6. the attemperating unit as described in claim 1-5 any one, is characterized in that, described attemperating unit (2) also comprises Electric air valve, and primary air separating duct (27) and rear air channel (28);
Described Electric air valve opens and closes, so that described wind inlet channel (25) is communicated with described test bay (3) by described primary air separating duct (27), described wind output channel (26) is communicated with described test bay (3) by described rear air channel (28); Or described wind inlet channel (25) is communicated with described test bay (3) by described rear air channel (28), described wind output channel (26) is communicated with described test bay (3) by described primary air separating duct (27).
7. attemperating unit as claimed in claim 6, it is characterized in that, described primary air separating duct (27) includes with described rear air channel (28) main pipeline (2781) that is connected in described wind inlet channel (25) and described wind output channel (26), and the branch pipe(tube) (2782) being communicated with described main pipeline (2781), described test bay (3) is communicated with described main pipeline (2781) by described branch pipe(tube) (2782).
8. attemperating unit as claimed in claim 7, is characterized in that, described branch pipe(tube) (2782) is provided with fireproofing electric valve (g).
9. an Engine Heat Balance Test System, comprise tested engine (1), it is characterized in that, also comprise the test bay (3) that holds described engine (1), and the attemperating unit (2) as described in claim 1-8 any one, described attemperating unit (2) is connected with described test bay (3).
10. Engine Heat Balance Test System as claimed in claim 9, is characterized in that, also comprises freezing water tank, and described freezing water tank loads chilled water, and during refrigerating gas, described chilled water flows to described refrigeratory (211) from described freezing water tank.
11. Engine Heat Balance Test Systems as claimed in claim 9, it is characterized in that, also comprise testing apparatus and the equipment room (4) that holds described testing apparatus, described equipment room (4) is adjacent with described test bay (3), has separating part (7) between the two.
12. Engine Heat Balance Test Systems as claimed in claim 11, is characterized in that, described separating part (7) is detachable.
13. Engine Heat Balance Test Systems as described in claim 11-12 any one, is characterized in that, described separating part (7) comprises soundproof door or sound proof window.
14. Engine Heat Balance Test Systems as claimed in claim 13, it is characterized in that, also comprise the track (6) that is arranged at described equipment room (4) and described test bay (3) inside top, described track (6) the described test bay (3) that can stretch out or retract.
15. Engine Heat Balance Test Systems as claimed in claim 13, it is characterized in that, also comprise control panel, hold between the control of described control panel (5), and be the power distribution cabinet (8) of described pilot system power supply, described test bay (3), described equipment room (4), and between described control, (5) are provided with described power distribution cabinet (8) and are connected, and can operate the control box of described power distribution cabinet (8).
16. Engine Heat Balance Test Systems as claimed in claim 15, is characterized in that, also comprise casing, and between described test bay (3), described equipment room (4) and described control, (5) are cut apart and formed by described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675630.4A CN103698129A (en) | 2013-12-11 | 2013-12-11 | Engine heat balance test system and temperature control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675630.4A CN103698129A (en) | 2013-12-11 | 2013-12-11 | Engine heat balance test system and temperature control device thereof |
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| Publication Number | Publication Date |
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| CN103698129A true CN103698129A (en) | 2014-04-02 |
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| CN104062144A (en) * | 2014-07-18 | 2014-09-24 | 南方英特空调有限公司 | Full-automatic automobile air conditioner cabinet linear test stand |
| CN107271191A (en) * | 2017-06-29 | 2017-10-20 | 奇瑞汽车股份有限公司 | Engine heat balance test method |
| CN109883744A (en) * | 2019-02-22 | 2019-06-14 | 柳州北斗星液压科技有限公司 | A kind of device and method for excavator thermal equilibrium analysis |
| CN112130066A (en) * | 2020-08-12 | 2020-12-25 | 东风博泽汽车系统有限公司 | Test tool for gearbox motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104062144A (en) * | 2014-07-18 | 2014-09-24 | 南方英特空调有限公司 | Full-automatic automobile air conditioner cabinet linear test stand |
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| CN109883744B (en) * | 2019-02-22 | 2021-05-07 | 柳州北斗星液压科技有限公司 | Device and method for analyzing thermal balance of excavator |
| CN112130066A (en) * | 2020-08-12 | 2020-12-25 | 东风博泽汽车系统有限公司 | Test tool for gearbox motor |
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