CN102980772A - Pressure-maintaining fluid-infusion device of cooling fluid thermostatic device - Google Patents
Pressure-maintaining fluid-infusion device of cooling fluid thermostatic device Download PDFInfo
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- CN102980772A CN102980772A CN2012104699092A CN201210469909A CN102980772A CN 102980772 A CN102980772 A CN 102980772A CN 2012104699092 A CN2012104699092 A CN 2012104699092A CN 201210469909 A CN201210469909 A CN 201210469909A CN 102980772 A CN102980772 A CN 102980772A
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Abstract
The invention relates to a pressure-maintaining fluid-infusion device of a cooling fluid thermostatic device. The technical scheme includes that the pressure-maintaining fluid-infusion device of the cooling fluid thermostatic device comprises a casing, wherein a liquid storage cavity is arranged inside the casing, an air inlet and an air outlet are arranged on the casing, the gas space at the top of the liquid storage cavity is communicated with an external high-pressure gas source during usage through the air inlet, the gas space at the top of the liquid storage cavity is communicated with the external space of the casing, the air outlet is connected with a relief valve which is opened for decompression after the pressure inside the liquid storage cavity exceeds a set value, and a thermostatic device connecting port through which the liquid storage cavity is communicated with corresponding liquid pipelines of the cooling fluid thermostatic device during usage is arranged on the casing. Compared with the prior art, the pressure-maintaining fluid-infusion device of the cooling fluid thermostatic device can provide stable pressure to the cooling fluid thermostatic device, guarantees sufficient liquid source supply and has the pressure-maintaining fluid-infusion function.
Description
Technical field
The present invention relates to cooling liquid constant thermal apparatus pressurize liquid replenisher.
Background technology
Cooling liquid constant thermal apparatus is one of indispensable test condition safeguards system of vehicular engine test.According to technical requirement in motor car engine method for testing performance " GB18297-2001 " and the motor car engine reliability test method " GB/T19055-2003 ", be the accuracy that guarantees that engine parameter is measured, to process of the test machine oil, when liquid coolant enters engine temperature must carry out constant, in order to truly measure within the limits prescribed the various performance parameters of engine.Because engine itself does not possess the constant control function of each temperature, so can only support by the external condition safeguards system auxiliary its specific needs that guarantee.
Cooling liquid constant thermal apparatus in the market can satisfy above two kinds of government test standards substantially, but along with the more and more harsher testing requirements of engine research, development department, particularly the engine of world's advanced technology is introduced and research and development, emission standard is more and more stricter, test specification is constantly expanded, test specification is proposed more and more accurate requirement, especially the accurate control of coolant pressure had high requirement, the existing cooling liquid constant thermal apparatus in market does not possess the pressurize voltage stabilizing function substantially.
Summary of the invention
The purpose of this invention is to provide a kind of cooling liquid constant thermal apparatus pressurize liquid replenisher with pressurize liquid replenishing function.
The technical solution adopted in the present invention is: cooling liquid constant thermal apparatus pressurize liquid replenisher, comprise that inside is provided with the housing of liquid storage cylinder, the exhausr port that the air intake opening that when described housing is provided with and uses the gas space at liquid storage cylinder top is communicated with outside high-pressure air source, the gas space at confession liquid storage cylinder top are communicated with the space outerpace of housing, be connected with pressure in liquid storage cylinder on the described exhausr port and surpass the blowdown valve of opening pressure release after the setting value, also be provided with on the described housing when using the thermostat connector of liquid storage cylinder with the corresponding liquid line connection of cooling liquid constant thermal apparatus.
In the technique scheme, air intake opening can be to injecting compressed air in the liquid storage cylinder, thereby be that cooling liquid constant thermal apparatus is set up suitable system pressure by the thermostat connector, and blowdown valve pressure release when can in fluid injection or air pressure is too high causing the liquid storage cylinder internal pressure too high guarantees the stable of system pressure.Compared with prior art, this cooling liquid constant thermal apparatus pressurize liquid replenisher can provide steady pressure and guarantee the supply of sufficient liquid source for cooling liquid constant thermal apparatus, has the pressurize liquid replenishing function.
Described housing is the box housing, comprises lower box and upper box lid, described lower box upper opening, and described upper box lid compresses on the opening that is located at described lower box and with lower box and seals by O-ring seal.Housing adopts the removable separate form of lower box and upper box lid, can take apart easily, is convenient to maintenance and inspection and cleaning, and O-ring seal can guarantee the impermeability of housing.
Described exhausr port and air intake opening all are arranged on the described upper box lid.This structure is convenient to the processing of exhausr port and air intake opening and the installation of follow-up corresponding parts.
Be provided with the liquid level sensor that detects residual liquid quantity in the liquid storage cylinder in the described housing.By liquid level sensor is set, can detect residual liquid quantity in the liquid storage cylinder, can connect adaptive control device during use and realize automatic liquid supply.
Described housing is provided with for the liquid level gauge that shows residual liquid quantity in the cooling liquid constant thermal apparatus pressurize liquid replenisher.Can observe easily liquid level.
Described housing bottom is provided with for the liquid in the liquid storage cylinder and discharges the outer leakage fluid dram of housing, and described leakage fluid dram is connected with the tapping valve that the control leakage fluid dram opens and closes.Need maintaining or when not using for a long time, can discharging of waste liquid be fallen by tapping valve.
Be connected with the only retaining valve of conducting to the liquid storage cylinder air inlet time on the described air intake opening.Liquid or back flow of gas cause connection device to damage when retaining valve being set can avoiding causing the liquid storage cylinder internal pressure excessive because of accidentalia such as hydraulic valve inefficacy, make-up valve inefficacies.
Described air intake opening is connected with for the high-pressure air source gas that provides and the pressure regulation filtrator of adjusting gaseous tension are provided.High pressure filter can provide for cooling liquid constant thermal apparatus pressurize liquid replenisher the pressure gas of pressure stability and cleaning.
Described blowdown valve has for the pressure regulation device of regulating the pressure release pressure set points, and different pressure release pressure can be set according to actual needs, and is easy to use.
Description of drawings
Fig. 1: the front view of an embodiment of cooling liquid constant thermal apparatus pressurize liquid replenisher of the present invention;
The right view of Fig. 2: Fig. 1;
The vertical view of Fig. 3: Fig. 1;
Fig. 4: the structural representation of the blowdown valve of cooling liquid constant thermal apparatus pressurize liquid replenisher of the present invention.
The name of each Reference numeral is called among the figure: 1 housing, 11 lower boxes, 12 upper box lids, 13 O-ring seals, 14 bolts, 2 retaining valves, 3 pressure regulation filtrators, 31 high-pressure air source connecting pipes, 4 thermostat connecting pipes, 5 tapping valves, 6 blowdown valves, 61 holders, 62 relief fittingss, 63 pressure regulation needle-valves, 64 springs, 65 glands, 66 setting nuts, 7 liquid level sensors, 8 liquid level gauges.
Embodiment
Embodiment of cooling liquid constant thermal apparatus pressurize liquid replenisher of the present invention such as Fig. 1 ~ shown in Figure 4, mainly comprise housing 1, pressure regulation filtrator 3, blowdown valve 6, liquid level sensor 7 and liquid level gauge 8.
Its middle shell 1 is the box housing, comprises lower box 11 and upper box lid 12, and lower box 11 upper openings, upper box lid 12 are located on the opening of described lower box 11 and by bolt 14 and compress, and surround the liquid storage cylinder of cooling liquid constant thermal apparatus pressurize liquid replenisher.In addition, being provided with O-ring seal 13 between lower box 11 and the upper box lid 12 seals.Also be provided with on the lower box 11 of housing 1 when using the thermostat connector of liquid storage cylinder with the corresponding liquid line connection of cooling liquid constant thermal apparatus, be connected with thermostat connecting pipe 4 on the thermostat connector.
The upper box lid 12 of housing 1 is provided with air intake opening and the exhausr port that communicates with the gas space of liquid storage cylinder top.Be connected with retaining valve 2 on the air intake opening, be communicated with pressure regulation filtrator 3 by retaining valve 2, the import of pressure regulation filtrator 3 is connected with high-pressure air source by high-pressure air source connecting pipe 31.Wherein only conducting when the gas space air inlet above liquid storage cylinder of retaining valve 2.Exhausr port directly is connected with a homemade blowdown valve 6.The structure of this blowdown valve 6 mainly is comprised of holder, spring 64, pressure regulation needle-valve 63, gland 65, setting nut 66 and relief fittings 62 as shown in Figure 4.The holder profile is cylindric, is welded on the upper box lid 12, and is porose in the middle of it, links to each other with the gas space of liquid storage cylinder inside.The holder top is provided with perforate, cooperates with pressure regulation needle-valve 63 guiding, and mating surface finishing to reduce friction as far as possible, makes 63 flexible movements of pressure regulation needle-valve.Counterbore is opened at pressure regulation needle-valve 63 centers, is equipped with spring 64 in the counterbore, is using gland 65 tops to press.Setting nut 66 is pressure regulation devices, with gland 65 for being threaded, by adjusting the degree of depth that is threaded into of setting nut 66, decrement that can regulating spring 64 applies power to metering pin valve; When the liquid storage cylinder internal pressure is applied to pressure on the holder greater than pressure regulation needle-valve 63, pressure releases through relief fittings 62 by the gap between holder and the pressure regulation needle-valve 63, the liquid storage cylinder internal pressure is descended, after the liquid storage cylinder internal pressure is replied normally, metering pin valve and holder reseal, and play pressure maintaining effect.Certainly, pressure regulation device also can adopt other form, for example traditional Weight type pressure regulation device.
Be provided with liquid level sensor 7 in the housing 1, for detection of residual liquid quantity in the liquid storage cylinder.Liquid level sensor 7 is connected with controller in the cooling liquid constant thermal apparatus, and in use, this controller can open or cut out according to the make-up valve of the liquid level signal that the detects control cooling liquid constant thermal apparatus of liquid level sensor 7.Described housing 1 outside also is provided with for the liquid level gauge 8 that shows residual liquid quantity in the cooling liquid constant thermal apparatus pressurize liquid replenisher, the liquid level that shows inside directly perceived, the convenient observation.
In addition, described housing 1 bottom is provided with for the liquid in the liquid storage cylinder and discharges the outer leakage fluid dram of housing, and described leakage fluid dram is connected with tapping valve 5.In the present embodiment, this tapping valve 5 adopts ball valve, and sealing is reliable.
Use-pattern: cooling liquid constant thermal apparatus pressurize liquid replenisher is placed on the eminence of cooling liquid constant thermal apparatus, and its underpart is communicated with the thermostat connector of cooling liquid constant thermal apparatus by thermostat connecting pipe 4.Before carrying out engine test, open controller power source, it is lower and feed back signal to controller that liquid level sensor 7 detects in the liquid storage cylinder liquid level, the make-up valve in controller control high pressure liquid source is opened, fluid infusion in the liquid storage cylinder, after replenishing appropriate amount of fluid, liquid level sensor 7 detects liquid level and meets setting value and feed back signal to controller, and the make-up valve in controller control high pressure liquid source is closed.In the present embodiment, the minimum liquid level of setting is higher than engine, thereby all air of engine and cooling liquid constant thermal apparatus inside can be discharged, and ensures the unimpeded of water circulation.Then, by high-pressure air source connecting pipe 31 pressure regulation filtrator 3 is connected to outside high-pressure air source, adjusting pressure regulation filtrator 3 makes its top hole pressure reach the required pressure of test, for cooling liquid constant thermal apparatus is set up internal liquid pressure, set up the constant voltage air mass by pressure gas on liquid storage cylinder top, this constant voltage air mass can pass through volume change in addition, and fluctuation is stabilized to fluid infusion case internal hydraulic pressure, realizes voltage stabilizing function.After equal pressure is stable, can begin test.Along with the minimizing of liquid storage intracavity liquid, pressure gas will constantly replenish in the test.If liquid level is lower than the minimum liquid level of setting, controller will be controlled make-up valve and open, fluid infusion in the liquid storage cylinder, and this moment blowdown valve 6 pressure regulation needle-valve 63 will open, carry out pressure release, guarantee that the liquid storage cylinder internal pressure is stable.After liquid level was normal, make-up valve was closed, and pressure gas stops to enter, and the pressure regulation needle-valve 63 of blowdown valve 6 is also closed simultaneously, so repeatedly, can steady pressure is provided and guarantee the supply of sufficient liquid source for cooling liquid constant thermal apparatus, realized the pressurize liquid replenishing function.
In the above-described embodiments, the housing 1 of cooling liquid constant thermal apparatus pressurize liquid replenisher is the box housing 1 that comprises lower box 11 and upper box lid 12, and its air intake opening and exhausr port are arranged on the upper box lid 12, and air intake opening is connected connection by retaining valve 2 with the pressure regulation filtrator; In addition, thus cooling liquid constant thermal apparatus pressurize liquid replenisher is provided with liquid level sensor 7 has realized automatic liquid supply.In other embodiments of the invention, housing 1 can also be arranged to other forms, and for example tank body shape, and this housing 1 can also adopt integral structure, for example welds structure; And air intake opening and exhausr port can also be arranged on other positions of housing 1, the sidewall of housing 1 for example, as long as be higher than the highest liquid level of restriction, the retaining valve 2 that air intake opening connects and pressure regulation filtrator 3 neither structures, for example, remove retaining valve 2 and pressure regulation filtrator 3, pressure is regulated by blowdown valve 6.Moreover, liquid level sensor 7 and controller also can remove, and rely on liquid level gauge 8 artificial observation inside liquid levels, adopt the mode fluid infusion of manually-operated make-up valve, perhaps liquid level gauge 8 is also removed, utilize the realization of weighing scale sense weight to the detection of residual liquid quantity in the liquid storage cylinder.
Claims (9)
1. cooling liquid constant thermal apparatus pressurize liquid replenisher, it is characterized in that: comprise that inside is provided with the housing of liquid storage cylinder, the exhausr port that the air intake opening that when described housing is provided with and uses the gas space at liquid storage cylinder top is communicated with outside high-pressure air source, the gas space at confession liquid storage cylinder top are communicated with the space outerpace of housing, be connected with pressure in liquid storage cylinder on the described exhausr port and surpass the blowdown valve of opening pressure release after the setting value, also be provided with on the described housing when using the thermostat connector of liquid storage cylinder with the corresponding liquid line connection of cooling liquid constant thermal apparatus.
2. cooling liquid constant thermal apparatus pressurize liquid replenisher according to claim 1, it is characterized in that: described housing is the box housing, comprise lower box and upper box lid, described lower box upper opening, described upper box lid compresses on the opening that is located at described lower box and with lower box and seals by O-ring seal.
3. cooling liquid constant thermal apparatus pressurize liquid replenisher according to claim 2, it is characterized in that: described exhausr port and air intake opening all are arranged on the described upper box lid.
4. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher is characterized in that: be provided with the liquid level sensor that detects residual liquid quantity in the liquid storage cylinder in the described housing according to claim 1 ~ 3.
5. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher according to claim 1 ~ 3 is characterized in that: described housing is provided with for the liquid level gauge that shows residual liquid quantity in the cooling liquid constant thermal apparatus pressurize liquid replenisher.
6. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher according to claim 1 ~ 3 is characterized in that: described housing bottom is provided with for the liquid in the liquid storage cylinder and discharges the outer leakage fluid dram of housing, and described leakage fluid dram is connected with the tapping valve that the control leakage fluid dram opens and closes.
7. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher is characterized in that: be connected with the only retaining valve of conducting to the liquid storage cylinder air inlet time on the described air intake opening according to claim 1 ~ 3.
8. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher according to claim 1 ~ 3 is characterized in that: described air intake opening is connected with for filtering the gas that high-pressure air source provides and the pressure regulation filtrator of adjusting gaseous tension.
9. the described cooling liquid constant thermal apparatus pressurize of any one liquid replenisher according to claim 1 ~ 3 is characterized in that: described blowdown valve has for the pressure regulation device of regulating the pressure release pressure set points.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469909.2A CN102980772B (en) | 2012-11-20 | 2012-11-20 | Pressure-maintaining fluid-infusion device of cooling fluid thermostatic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469909.2A CN102980772B (en) | 2012-11-20 | 2012-11-20 | Pressure-maintaining fluid-infusion device of cooling fluid thermostatic device |
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| CN102980772A true CN102980772A (en) | 2013-03-20 |
| CN102980772B CN102980772B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210469909.2A Active CN102980772B (en) | 2012-11-20 | 2012-11-20 | Pressure-maintaining fluid-infusion device of cooling fluid thermostatic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793676A (en) * | 2016-11-24 | 2017-05-31 | 新乡航空工业(集团)有限公司 | A kind of liquid cooling system integrated liquid feed device bellows-type liquid reserve tank |
Citations (6)
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| JPS58219433A (en) * | 1982-06-15 | 1983-12-20 | Mazda Motor Corp | Cooling water control apparatus for adjusting assembled engine |
| JP2000118597A (en) * | 1998-10-15 | 2000-04-25 | Banzai Ltd | Liquid replacing system for automobile |
| CN101539486A (en) * | 2009-04-24 | 2009-09-23 | 北京航空航天大学 | Gas pressure control adjusting device |
| CN201506705U (en) * | 2009-09-23 | 2010-06-16 | 上海通用汽车有限公司 | Liquid filling device |
| CN202139034U (en) * | 2011-07-21 | 2012-02-08 | 力帆实业(集团)股份有限公司 | Cooling fluid injection device for electric car |
| KR20120062300A (en) * | 2010-12-06 | 2012-06-14 | 한국항공우주연구원 | Cooling device and cooling tubes for high altitude test of gas turbine engine |
-
2012
- 2012-11-20 CN CN201210469909.2A patent/CN102980772B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219433A (en) * | 1982-06-15 | 1983-12-20 | Mazda Motor Corp | Cooling water control apparatus for adjusting assembled engine |
| JP2000118597A (en) * | 1998-10-15 | 2000-04-25 | Banzai Ltd | Liquid replacing system for automobile |
| CN101539486A (en) * | 2009-04-24 | 2009-09-23 | 北京航空航天大学 | Gas pressure control adjusting device |
| CN201506705U (en) * | 2009-09-23 | 2010-06-16 | 上海通用汽车有限公司 | Liquid filling device |
| KR20120062300A (en) * | 2010-12-06 | 2012-06-14 | 한국항공우주연구원 | Cooling device and cooling tubes for high altitude test of gas turbine engine |
| CN202139034U (en) * | 2011-07-21 | 2012-02-08 | 力帆实业(集团)股份有限公司 | Cooling fluid injection device for electric car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793676A (en) * | 2016-11-24 | 2017-05-31 | 新乡航空工业(集团)有限公司 | A kind of liquid cooling system integrated liquid feed device bellows-type liquid reserve tank |
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| CN102980772B (en) | 2015-06-17 |
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