CN103161994B - Automatic exhaust valve of heating medium oil system - Google Patents
Automatic exhaust valve of heating medium oil system Download PDFInfo
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- CN103161994B CN103161994B CN201110419518.5A CN201110419518A CN103161994B CN 103161994 B CN103161994 B CN 103161994B CN 201110419518 A CN201110419518 A CN 201110419518A CN 103161994 B CN103161994 B CN 103161994B
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- filter screen
- automatic control
- control pressure
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Abstract
The invention discloses an automatic exhaust valve of a heating medium oil system. The valve is composed of a lower valve body (1), an upper valve body (2), a valve base (3), a valve cover (4), a flow guide body (5), a filtering net (6), an adjusting polish rod (7), an air floater (8), an adjusting screw rod (9), an air-permeable valve cover (11), a tee joint (12) and a filtering net (13), wherein the valve base, the lower valve body, the upper valve body, the valve cover, the tee joint and the air-permeable valve cover are sequentially in threaded connection, the filtering net (6) is arranged on a cone on the lower portion of an inner cavity of the valve base, the flow guide body is installed in inner holes which are formed in the lower valve body and the upper valve body, two sides of the flow guide body are provided with openings, the air floater is arranged in the upper valve body, the adjusting polish rod is installed in a concave groove in the upper portion of the air floater, the adjusting screw rod is installed in an inner screw hole in the valve cover, and the filtering net (13) is arranged in a groove in the inner wall of the air-permeable valve cover. The exhaust valve can effectively remove free steam generated in an inlet pipe section of a heating medium pump and hydrocarbon vapor in heating medium oil, and guarantees normal operation of the heating medium oil system.
Description
Technical field
The present invention relates to a kind of heat kerosene system automatic control pressure vent.
Background technique
At present, the plurality of specifications that Domestic market is sold, function are suitable for the automatic control pressure vent of normal water-heating system and high-pressure water-heating system, and its product structure is substantially as follows: valve body, pipe joint, float and venting gas appliance, valve body is spherical.Valve body is made up of drain pan, cap and seal ring, it is the guide shaft that float is located that the center of drain pan is arranged, and venting gas appliance is made up of with the conehead exhaust nozzle being loaded on cap top the rubber sheet gasket of float upper end, spherical structure, compact, float accurate positioning, activity are flexibly.Product performance generally, dissolved air about containing 2VOL% in water, in water delivery process, these air constantly discharge by water, be gathered in the height point place of pipeline, forming air bag (AIR POCKET), make water delivery become difficulty. therefore system conveyance power of water can decline about 5-15%.
Peak or the elbow of automatic control pressure vent on pipeline or have the place of holding one's breath, the gas come in drain carrys out dredging pipeline, reaches normal work.If do not filled this valve, there is vapour lock in pipeline at any time, and pipeline is occurred, and water capacity does not reach designing requirement.Secondly; Pipeline operationally occurs that power failure, termination of pumping and pipeline occur that negative pressure can cause pipe vibration or break.DN15 automatic control pressure vent is widely used in the occasion that the various needs such as waterworks, sewage treatment works are vented in a large number, adopts floating ball structure, and rapidly, air displacement per minute is up to 1400L/min in exhaust.Large discharge automatic control pressure vent is installed usually to discharge pipeline air on water supply line by water supply company, when main pipeline supplies water to main, before large discharge automatic control pressure vent is used for the main of frequent switch. after outlet valve is installed, before the air of outlet valve in pipeline flows through water meter, just air is discharged, current are flowed out very soon, also effectively prevent the idle running of water meter simultaneously.When water is through outlet valve, the ball float in outlet valve rises, and closes exhaust port, stops water to flow out from exhaust port.
The automatic control pressure vent overwhelming majority is industry, civilian plumbing technological process uses, be applicable to normal temperature steam occasion, if be arranged on hydrocarbon be key component heat kerosene as heat transfer medium run in have following defect: link sealing material is rubber, can not meet heat kerosene and run under high temperature (180-220 DEG C) operating mode; Automatic vent is carried out under can not meeting micro positive pressure (vapor tension 10-320 DEG C of boiling range 250-350Pa of conduction oil) operating mode; Automatic vent valve sealing material rubber not oil resistant, inapplicable oil gas place, and inflammable, the explosive medium of heat kerosene system, each binding site of valve body must strictly seal, and does not allow seepage; Do not have to make gas mixture obtain the structure be separated, do not reach the effect of Oil-gas Separation.
Summary of the invention
The technical problem to be solved in the present invention is to provide high temperature resistant, the resistance to oil immersion of a kind of heat kerosene system automatic control pressure vent, contacts indeformable with hydrocarbon; Realize heat medium pump entrance pipe and reach oil and gas phase separation; Solution gas contained in heat kerosene and water vapor can be discharged.
For solving the problems of the technologies described above, heat kerosene system automatic control pressure vent of the present invention, by lower valve body, upper valve body, valve seat, valve gap, drainage body, the first filter screen, regulates polished rod, air supporting, adjusting screw rod, ventilative valve gap, threeway and the second filter screen to form.Wherein, above-mentioned valve seat, lower valve body, upper valve body, valve gap, threeway and ventilative valve gap are threaded successively; The remaining passage of above-mentioned threeway screws in plug; Above-mentioned first filter screen is placed on the frustum of valve base cavity bottom; Above-mentioned drainage body is arranged in the endoporus that lower valve body and upper valve body pass through mutually, and this drainage body is hollow cylindrical, and both sides are provided with perforate; Above-mentioned air supporting is placed in upper valve body, and install in the sub-upper female groove of this air supporting and regulate polished rod, this adjustment polished rod and adjusting screw rod are connected on same axis by spring; Above-mentioned adjusting screw rod is arranged in the inner bolt hole of valve gap; Above-mentioned second filter screen is placed in the groove of ventilative valve gap inwall; The uniform caping of the air hole that above-mentioned vent valve covers.
Above-mentioned ventilative valve gap is threaded with perspective cup.
Above-mentioned first filter screen and the second filter screen form filter bed by least double layer of metal silk screen is stacked.
Above-mentioned first filter screen and the second filter screen form filter bed by six layers of wire gaze is stacked.
Above-mentioned first filter screen and the second filter screen material are chromium steel or brass.
Above-mentioned valve seat, lower valve body, upper valve body, valve gap, threeway and ventilative valve gap settle red copper gasket seal each other, ensure that each connection part seals.
Above-mentioned valve seat, upper valve body, lower valve body, valve gap, drainage body, adjusting screw rod, ventilative valve gap and threeway material are brass.Threeway can substitute with pressing in steel threeway.
Adopt the technical program, heat kerosene system automatic control pressure vent of the present invention eliminates the gas produced by a variety of causes in heat kerosene pump entry pipe-line system effectively; Thoroughly solve the recycle pump that heat kerosene recycle pump produces due to cavitation erosion to find time and strenuous vibration fault; Coming into operation of heat kerosene system automatic control pressure vent ensure that the smooth running of heat medium circulation pump, and between running current 85-90A, be only 50-60A when pump depletion runs, pump efficiency improves 25%; The destructive hidden danger eliminating the water hammer in plant running caused by liquid entrainment gas and cause centrifugal pump, pipeline, valve etc., eliminates seepage, breakage problem that metallic hose frequently occurs; Change that hot Media Oven runs medium bias current in boiler tube, temperaturing lifting abnormality, boiler tube burn partially, the abnormal state of temperature rise; Change post employee offer sb. a chance to remedy a fault gracefully ascend a height manual vent method and issuable personnel injury; Solve the sealing of each connection part of valve body, decrease disaster hidden-trouble.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of heat kerosene system automatic control pressure vent of the present invention.
Embodiment
As shown in Figure 1, gas-liquid separation chamber is arranged at body base, be made up of valve seat 3, lower valve body 1, first filter screen 6, Double-hole drainage body 5, multilayer first filter screen 6 that inner conically structure and side are opened define desirable collision, gravity oil gas separation chamber, netted filter bed is flowed through at Oil-gas Separation Indoor Air liquid mixture, gas rises along drawing on fluid passage, and liquid sedimentation flows back in pipe and realizes preliminary Oil-gas Separation; Air-flow removes chamber (exhaust process) and is arranged at valve body top, by drainage body 5, air supporting 8, polished rod 7, spring, adjusting screw rod 9 and upper valve body 2 is regulated to form, air-flow can be introduced oil mist trapping section completely, the exhaust system test condition of air supporting 8 is at ambient temperature 15-28 DEG C, pressure ﹥ 1 × 10
2pa gas can be discharged continuously; Oil mist trapping device is installed on the side of main valve body, is deposited in perspective cup 10, can carries liquid measure secretly by gas-monitoring by the oil-collecting amount of having an X-rayed cup 10 after entrained oil mist is collided separation in air scavenge process in oil mist trapping device.
Heat kerosene system automatic control pressure vent is when heat kerosene process operation, and heat kerosene gas mixture achieves oil and gas phase by gas-liquid separation chamber and is separated, and in drop gravitate downwelling return pipe, gas removes chamber via air-flow and discharges; The function that heat kerosene system automatic control pressure vent realizes oil gas initial gross separation is that multilayer first filter screen 6 wire gaze that valve seat 3 inner chamber is arranged makes gas mixture carry out collision separation, cone type inner chamber body valve seat 3 makes gas flow create centrifugal force, and gas mixture carries out centrifugation and gravity separation; The diplopore cylinder type drainage body 5 that side is opened makes Oil-gas Separation indoor gas rise along drawing on fluid passage, and liquid gravitate downwelling return pipe realizes preliminary Oil-gas Separation in road; The function that heat kerosene system automatic control pressure vent realizes gas discharge is drainage body 5, air supporting 8, adjustment polished rod 7, adjusting screw rod 9, second filter screen 13 and ventilative valve gap 11 acting in conjunction; The size of air supporting 8 quality is the keys controlling air displacement, design considers the measure of quality of regulation, gas can be got rid of completely; Trap perspective cup 10 after gas entrained oil mist can be collided separation by the effect of the second filter screen 13 further, gas is discharged along ventilative valve gap 11.Regulate polished rod 7 and adjusting screw rod 9 to constitute and regulate tolerance mechanism, dissolved gas contained by different heat kerosenes is different, between constantly running device condensation water vapor amount not identical yet, regulated the linking springs of polished rod 7 and adjusting screw rod 9 by timely adjustment, heat kerosene system automatic control pressure vent can be arranged at desirable running state.
The plug that threeway 12 screws in is opened, adjusts pine or screw adjusting screw rod 9 and can carry out the adjustment of heat kerosene system automatic control pressure vent air displacement.
For preventing the connection part of this valve of heat kerosene seepage from all adopting red copper material seal, connecting thread is fastening simultaneously.
Heat kerosene system automatic control pressure vent installation and use: heat kerosene system automatic control pressure vent mounting point should before heat medium circulation pump the high point of system pipeline.Heat kerosene system automatic control pressure vent uses when being connected adjustment when cut-off valve should be established to be convenient to working conditions change with pipeline or keeping in repair.Heat kerosene system automatic control pressure vent is different according to process parameter before installing, and ground installation should be utilized to do air displacement, pressure regulates.If containing a large amount of moisture in heat kerosene system, alternate manner should be adopted to get rid of most of moisture after, recycling automatic vent valve exhaust.Automatic control pressure vent is when heat kerosene system is gone into operation or act on more outstanding when changing heat kerosene, but now must carry out in strict accordance with the temperature rise curve of pipestill for heat carrier, just can not heat up not in accordance with temperature rise curve because of having had automatic control pressure vent, be harmful to very much pipe network and automatic control pressure vent like that, the first filter screen 6 in automatic control pressure vent and the second filter screen 13 will clean according to service condition.
Claims (7)
1. a heat kerosene system automatic control pressure vent, by lower valve body (1), upper valve body (2), valve seat (3), valve gap (4), drainage body (5), first filter screen (6), regulate polished rod (7), air supporting (8), adjusting screw rod (9), perspective cup (10), ventilative valve gap (11), threeway (12) and the second filter screen (13) composition, it is characterized in that: described valve seat (3), lower valve body (1), upper valve body (2), valve gap (4), threeway (12) and ventilative valve gap (11) are threaded successively, described threeway (12) another passage screws in plug, described first filter screen (6) is placed on the frustum of valve seat (3) inner chamber bottom, described drainage body (5) is arranged in the endoporus that lower valve body (1) and upper valve body (2) pass through mutually, and this drainage body (5) is hollow cylindrical, and both sides are provided with perforate, described air supporting (8) is placed in upper valve body (2), install in this air supporting (8) upper female groove and regulate polished rod (7), this adjustment polished rod (7) and adjusting screw rod (9) are connected on same axis by spring, described adjusting screw rod (9) is arranged in the inner bolt hole of valve gap (4), described second filter screen (13) is placed in the groove of ventilative valve gap (11) inwall, the uniform caping of air hole on described ventilative valve gap (11).
2. heat kerosene system automatic control pressure vent according to claim 1, is characterized in that: described ventilative valve gap (11) is threaded with perspective cup (10).
3. heat kerosene system automatic control pressure vent according to claim 1, is characterized in that: described first filter screen (6) and the second filter screen (13) are by least stacked formation filter bed of double layer of metal silk screen.
4. heat kerosene system automatic control pressure vent according to claim 3, is characterized in that: described first filter screen (6) and the second filter screen (13) are by six layers of stacked formation filter bed of wire gaze.
5. the heat kerosene system automatic control pressure vent according to claim 3 or 4, is characterized in that: described first filter screen (6) and the second filter screen (13) material are chromium steel or brass.
6. heat kerosene system automatic control pressure vent according to claim 1, is characterized in that: described valve seat (3), lower valve body (1), upper valve body (2), valve gap (4), threeway (12) and ventilative valve gap (11) settle red copper gasket seal each other.
7. heat kerosene system automatic control pressure vent according to claim 1, is characterized in that: described valve seat (3), upper valve body (1), lower valve body (2), valve gap (4), drainage body (5), adjusting screw rod (9), ventilative valve gap (11) and threeway (12) material are brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419518.5A CN103161994B (en) | 2011-12-15 | 2011-12-15 | Automatic exhaust valve of heating medium oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419518.5A CN103161994B (en) | 2011-12-15 | 2011-12-15 | Automatic exhaust valve of heating medium oil system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161994A CN103161994A (en) | 2013-06-19 |
| CN103161994B true CN103161994B (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110419518.5A Active CN103161994B (en) | 2011-12-15 | 2011-12-15 | Automatic exhaust valve of heating medium oil system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201504U (en) * | 1987-05-03 | 1988-07-06 | 魏强 | Hot water self-exhaust valve for heating |
| CN2054132U (en) * | 1989-09-05 | 1990-03-07 | 北京市建筑五金装饰材料工业公司 | Air outlet valve actuated by float |
| CN2212110Y (en) * | 1995-04-12 | 1995-11-08 | 金德生 | Quick action exhaust valve |
| JP3805660B2 (en) * | 2001-10-29 | 2006-08-02 | 政和 山本 | Ball type fire hydrant with built-in air valve |
| CN101012886A (en) * | 2007-02-12 | 2007-08-08 | 林春晓 | New type automatic exhaust steam valve |
| US7481238B2 (en) * | 2005-08-09 | 2009-01-27 | Roger Ramoth | Automatic degassing valve |
| CN202531975U (en) * | 2011-12-15 | 2012-11-14 | 中国石油天然气股份有限公司 | Automatic exhaust valve of heating medium oil system |
-
2011
- 2011-12-15 CN CN201110419518.5A patent/CN103161994B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201504U (en) * | 1987-05-03 | 1988-07-06 | 魏强 | Hot water self-exhaust valve for heating |
| CN2054132U (en) * | 1989-09-05 | 1990-03-07 | 北京市建筑五金装饰材料工业公司 | Air outlet valve actuated by float |
| CN2212110Y (en) * | 1995-04-12 | 1995-11-08 | 金德生 | Quick action exhaust valve |
| JP3805660B2 (en) * | 2001-10-29 | 2006-08-02 | 政和 山本 | Ball type fire hydrant with built-in air valve |
| US7481238B2 (en) * | 2005-08-09 | 2009-01-27 | Roger Ramoth | Automatic degassing valve |
| CN101012886A (en) * | 2007-02-12 | 2007-08-08 | 林春晓 | New type automatic exhaust steam valve |
| CN202531975U (en) * | 2011-12-15 | 2012-11-14 | 中国石油天然气股份有限公司 | Automatic exhaust valve of heating medium oil system |
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| Publication number | Publication date |
|---|---|
| CN103161994A (en) | 2013-06-19 |
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