CN201322122Y - Energy-saving type gas pressure reducing valve - Google Patents
Energy-saving type gas pressure reducing valve Download PDFInfo
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- CN201322122Y CN201322122Y CNU2008201808237U CN200820180823U CN201322122Y CN 201322122 Y CN201322122 Y CN 201322122Y CN U2008201808237 U CNU2008201808237 U CN U2008201808237U CN 200820180823 U CN200820180823 U CN 200820180823U CN 201322122 Y CN201322122 Y CN 201322122Y
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Abstract
The utility model relates to a gas pressure reducing valve, in particular to an energy-saving type gas pressure reducing valve, which comprises a high pressure gas pressure reducing valve and lower pressure gas pressure reducing valve, wherein a gas inlet pipe of the lower pressure gas pressure reducing valve is connected with a gas outlet hole of the high pressure gas pressure reducing valve in a sealing mode. The gas pressure reducing valve has the advantages that firstly, direct output after high pressure and low pressure conversion is changed into secondary pressure adjusting output, the pressure difference of high pressure gas and low pressure gas is reduced, the gas pulse which is primarily output is greatly reduced, waste gas can be lowered to the lowest, and secondly the output gas flow can be more accurate and stable.
Description
Technical field
The utility model relates to a kind of gas pressure reducer, particularly a kind of energy-saving gas pressure reducer.
Background technique
Fields such as industry, medical treatment, scientific research all need to use gas pressure reducer usually, the gas regulation that is stored in the gas cylinder are become stable low-pressure gas, for use.Existing gas pressure reducer is the single-stage reduction valve, wherein be divided into fixed and adjustable two kinds, its structure as shown in Figure 1, mainly comprise: housing 1, barrier film 2, valve 3, hyperbaric chamber 4, low pressure chamber 5, high pressure spring 6, pressure adjusting spring 7, voltage regulation screw 8 etc., described barrier film 2 is separated into the valve chamber 9 on top and the surge-chamber 10 of bottom with housing 1, and described valve chamber 9 is chewed 11 hyperbaric chamber 4 and is communicated with the valve 3 of chewing 12 low pressure chamber 5 and being located between the high and low voltage chamber of giving vent to anger by the connection air inlet and formed; The valve plug 31 of described valve 3 is located in the hyperbaric chamber 4, described high pressure spring 6 with pressure F1 with described valve plug 31 roof pressures on the valve opening 32 of described valve 3, described valve plug 31 is provided with the push rod 33 that passes valve opening 32, described push rod 33 connects described barrier film 2; Described pressure adjusting spring 7 is located at the opposite side of described barrier film 2, promptly figure septation 2 below, and regulate the pressure F2 of 7 pairs of barrier films 2 of pressure adjusting springs by voltage regulation screw 8.Working principle is; If act on the pressure of the low-pressure gas on the barrier film is F3 (the pressure P1 * diaphragm area S of F3=low-pressure gas), and when F3+F1＞F2, barrier film moves downward, valve closing, and no gas flows out; When F3+F1＜F2, barrier film moves upward, and valve is opened, and the pressurized gas in the gas cylinder enter low pressure chamber, and low pressure chamber pressure is increased, and gas is discharged.For fixed reduction valve, voltage regulation screw is enclosed in the housing, and the user can not regulate.On with air pipe, be typically provided with solenoid valve, before the use, open solenoid valve, regulate required flow, close solenoid valve then by adjusting screw.During normal the use, control electromagnetic valve is opened automatically, discharges gas.Because required flow is measured in the gas flow process, for satisfying required flow, reduction valve need be adjusted to enough low pressure P1, for example when argon arc welding, P1 is 2-3 barometric pressure (a 0.2-0.3 MPa), when closed electromagnetic valve, solenoid valve all keeps this pressure in the whole pipe of reduction valve, the moment that solenoid valve is opened, ducted gas was gone out high speed, ducted pressure reduces rapidly, the valve open in the reduction valve, and pressurized gas enter pipeline by low pressure chamber rapidly, form gas pulses, the size of gas pulses is directly proportional with high hypobaric pressure reduction.Therefore the shortcoming of this reduction valve is: in the initial time that uses, have considerable gas and be wasted, if will cause to a certain degree harmful effect to human body or the harmful gas of air.Be used for welding, can cause not attractive in appearancely, and can destroy the weld seam quality face of weld.
How a kind of reduction valve that reduces solenoid valve conduction moment generation gas pulses amount is provided is that the industry presses for one of difficult problem of solution.
Summary of the invention
Technical problem to be solved in the utility model is at the above-mentioned deficiency of prior art, and to provide a kind of energy-saving gas pressure reducer that reduces solenoid valve conduction moment generation gas pulses amount.
Energy-saving gas pressure reducer provided by the utility model is realized by following technological scheme.
A kind of energy-saving gas pressure reducer is characterized in that comprising high pressure air reducing valve and low-pressure gas trimmer valve, and the air outlet hole of the suction tude of described low-pressure gas trimmer valve and described high pressure air reducing valve is tightly connected.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents.
Described energy-saving gas pressure reducer, it is characterized in that described high pressure air reducing valve and low-pressure gas trimmer valve include: housing, barrier film, valve, hyperbaric chamber, low pressure chamber, high pressure spring, pressure adjusting spring, voltage regulation screw, the high pressure admission of being located on the housing are chewed and the low pressure air outlet hole, described barrier film is separated into the valve chamber on top and the surge-chamber of bottom with housing, and described valve chamber is formed by being communicated with hyperbaric chamber that air inlet chews and the low pressure chamber that is communicated with air outlet hole and the valve of being located between the high and low voltage chamber; The valve plug of described valve is located in the hyperbaric chamber, and the described valve plug of described high pressure spring roof pressure is on the valve opening of described valve, and described valve plug is provided with the push rod that passes valve opening, and described push rod connects described barrier film; Described pressure adjusting spring is located at the opposite side of described barrier film, and regulates the pressure of pressure adjusting spring to barrier film by voltage regulation screw.
Described energy-saving gas pressure reducer is characterized in that being provided with and being communicated with the barometer of the detection high-pressure gas pressure in hyperbaric chamber on the described high pressure air reducing valve housing.
Described energy-saving gas pressure reducer is characterized in that the outside of voltage regulation screw is provided with hold-doun nut on the described high pressure air reducing valve housing, and described hold-doun nut is provided with the caution paster.
Described energy-saving gas pressure reducer is characterized in that described high pressure air reducing valve housing is provided with pointer flowmeter.
Described energy-saving gas pressure reducer is characterized in that described high pressure air reducing valve housing is provided with the safety valve that is communicated with low pressure chamber.
Described energy-saving gas pressure reducer is characterized in that the voltage regulation screw of described low-pressure gas trimmer valve is provided with the pressure regulation handwheel.
Described energy-saving gas pressure reducer, the working pressure that it is characterized in that described low-pressure gas trimmer valve is less than 1 MPa.
Advantage of the present utility model is:
1, changes the direct output in high low pressure conversion back into secondary pressure and regulate output, that is to say that once decompression back gas storage does not have direct moment output in low pressure chamber, but export by the secondary decompression back of low pressure buffer valve, reduced gas differential pressure, the gas pulses of initial output is reduced greatly, to waste gas and reduce to minimumly, can effectively save 40% gas in preceding 10 seconds in welding;
2, make output gas flow of gas accurate more, stable.In the air protection welding process, guaranteed the weld seam quality.
3, the utility model stage type pressure reduction structure can guarantee that under the situation that storage pressure descends output characteristics remains unchanged, guarantees that output flow, pressure are precise and stable.
4, the external relief valve design of high low pressure segmented is safer, more durable.
5, can reduce because of change workpiece or other reason cause welding interrupt proceeding to weld next time before required gas testing the process once more gas and the waste of time that produce, can save gas testing process once more, can open at any time, use at any time, not influence welding quality at all; For enterprise saves the gas cost;
6, compliance with environmental protection requirements;
7, the person that reduces the staff sucks the harm that waste gas caused.
For structure characteristic of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
The structural representation of the existing reduction valve of Fig. 1.
Fig. 2 is the outline drawing of the energy-saving gas pressure reducer of the utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the test comparison figure of the inceptive impulse air-flow of inceptive impulse air-flow of the present utility model and existing reduction valve.
Embodiment
Fig. 2, the 3rd, a kind of energy-saving gas pressure reducer provided by the utility model, it comprises high pressure air reducing valve 100 and low-pressure gas trimmer valve 200, and the suction tude 210 of described low-pressure gas trimmer valve 200 is tightly connected with the air outlet hole 110 of described high pressure air reducing valve 100.Specifically be, the air outlet hole 110 of described high pressure air reducing valve 100 is an interior threaded hole, the suction tude 221 of described low-pressure gas trimmer valve 200 has the outside thread that matches with described interior threaded hole, suction tude 221 spiral shells of described low-pressure gas trimmer valve 200 are located in the interior threaded hole of described high pressure air reducing valve 100 air outlet holes 110, and in the top of suction tude 221 seal ring 224 are set.Illustrated embodiment is for dividing body structure, and advantage is to be convenient to maintenance, and is easily manufactured.Also can make overall structure.
Described high pressure air reducing valve 100 comprises: housing 120, barrier film 130, valve 140, hyperbaric chamber 150, low pressure chamber 160, high pressure spring 170, pressure adjusting spring 181, voltage regulation screw 182, be located at air inlet on the housing 120 and chew 121 and air outlet hole 110, described barrier film 130 is separated into the valve chamber 122 on top and the surge-chamber 123 of bottom with housing 120, and described valve chamber 122 is chewed 121 hyperbaric chamber 150 and is communicated with the low pressure chamber 160 of air outlet hole 110 and the valve of being located between the high and low voltage chamber 140 is formed by being communicated with air inlet; The valve plug 141 of described valve 140 is located in the hyperbaric chamber 150, and the described valve plug 141 of described high pressure spring 170 roof pressures is on the valve opening 142 of described valve 140, and described valve plug 141 is provided with the push rod 143 that passes valve opening 142, and described push rod 143 connects described barrier film 130; Described pressure adjusting spring 181 is located at the opposite side of described barrier film 130, and regulates the pressure of pressure adjusting spring to barrier film 130 by voltage regulation screw 182.
Described low-pressure gas trimmer valve 200 comprises: housing 220, barrier film 230, valve 240, hyperbaric chamber 250, low pressure chamber 260, high pressure spring 270, pressure adjusting spring 281, voltage regulation screw 282, be located at air inlet on the housing 220 and chew 221 and air outlet hole 210, described barrier film 230 is separated into the valve chamber 222 on top and the surge-chamber 223 of bottom with housing 220, and described valve chamber 222 is chewed 221 hyperbaric chamber 250 and is communicated with the low pressure chamber 260 of air outlet hole 210 and the valve of being located between the high and low voltage chamber 240 is formed by being communicated with air inlet; The valve plug 241 of described valve 240 is located in the hyperbaric chamber 250, and the described valve plug 241 of described high pressure spring 270 roof pressures is on the valve opening 242 of described valve 240, and described valve plug 241 is provided with the push rod 243 that passes valve opening 242, and described push rod 243 connects described barrier film 230; Described pressure adjusting spring 281 is located at the opposite side of described barrier film 230, and regulates the pressure of pressure adjusting spring to barrier film 230 by voltage regulation screw 282.Described low pressure air outlet hole 210 is provided with steam outlet pipe 211 for flexible pipe is installed.
On the housing 120 of described high pressure air reducing valve 100, the outside of voltage regulation screw 182 is provided with hold-doun nut 183, and effect is to lock after mixing up pressure, prevents activity.Described hold-doun nut 183 is provided with caution paster 184.
Described high pressure air reducing valve housing 120 is provided with pointer flowmeter 300.
Described high pressure air reducing valve housing is provided with safety valve 400 that is communicated with low pressure chamber and the pressure gauge 500 that is communicated with the hyperbaric chamber.
The voltage regulation screw 282 of described low-pressure gas trimmer valve is provided with pressure regulation handwheel 283.
The working pressure of described low-pressure gas trimmer valve is less than 1 MPa.
Fig. 4 is the test comparison figure of the inceptive impulse air-flow of inceptive impulse air-flow of the present utility model and existing reduction valve.Existing as seen from the figure common reduction valve ventilation at first greatly about 0.2 second the time, the flow of pulsing airflow reaches maximum value 200L/min, is exponential curve then and descends, its endurance can reach 5 seconds.And energy-saving gas pressure reducer of the present utility model ventilation at first greatly about 0.2 second the time, the flow of pulsing airflow reaches maximum value 27L/min, is exponential curve then to descend only 0.2 second its endurance.The two is compared the inceptive impulse throughput of energy-saving gas pressure reducer of the present utility model in the ventilation initial period and is about 7 percent of existing reduction valve, and the two is compared and can ignore.
Claims (8)
1, a kind of energy-saving gas pressure reducer is characterized in that comprising high pressure air reducing valve and low-pressure gas trimmer valve, and the air outlet hole of the suction tude of described low-pressure gas trimmer valve and described high pressure air reducing valve is tightly connected.
2, energy-saving gas pressure reducer according to claim 1, it is characterized in that described high pressure air reducing valve and low-pressure gas trimmer valve include: housing, barrier film, valve, hyperbaric chamber, low pressure chamber, high pressure spring, pressure adjusting spring, voltage regulation screw, the air inlet of being located on the housing are chewed and air outlet hole, described barrier film is separated into the valve chamber on top and the surge-chamber of bottom with housing, and described valve chamber is formed by being communicated with hyperbaric chamber that air inlet chews and the low pressure chamber that is communicated with air outlet hole and the valve of being located between the high and low voltage chamber; The valve plug of described valve is located in the hyperbaric chamber, and the described valve plug of described high pressure spring roof pressure is on the valve opening of described valve, and described valve plug is provided with the push rod that passes valve opening, and described push rod connects described barrier film; Described pressure adjusting spring is located at the opposite side of described barrier film, and regulates the pressure of pressure adjusting spring to barrier film by voltage regulation screw.
3, energy-saving gas pressure reducer according to claim 2 is characterized in that being provided with and being communicated with the barometer of the detection high-pressure gas pressure in hyperbaric chamber on the described high pressure air reducing valve housing.
4, energy-saving gas pressure reducer according to claim 2 is characterized in that the outside of voltage regulation screw is provided with hold-doun nut on the described high pressure air reducing valve housing, and described hold-doun nut is provided with the caution paster.
5, energy-saving gas pressure reducer according to claim 2 is characterized in that described high pressure air reducing valve housing is provided with pointer flowmeter.
6, energy-saving gas pressure reducer according to claim 2 is characterized in that described high pressure air reducing valve housing is provided with the safety valve that is communicated with low pressure chamber.
7, energy-saving gas pressure reducer according to claim 2 is characterized in that the voltage regulation screw of described low-pressure gas trimmer valve is provided with the pressure regulation handwheel.
8, energy-saving gas pressure reducer according to claim 1, the working pressure that it is characterized in that described low-pressure gas trimmer valve is less than 1 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201808237U CN201322122Y (en) | 2008-12-09 | 2008-12-09 | Energy-saving type gas pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201808237U CN201322122Y (en) | 2008-12-09 | 2008-12-09 | Energy-saving type gas pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322122Y true CN201322122Y (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201808237U Expired - Fee Related CN201322122Y (en) | 2008-12-09 | 2008-12-09 | Energy-saving type gas pressure reducing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN201322122Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676062A (en) * | 2015-03-12 | 2015-06-03 | 宁波东钱湖旅游度假区圣莱思机电有限公司 | Double-stage gas energy-saving valve |
| CN105065768A (en) * | 2015-07-20 | 2015-11-18 | 南京伟易达机电科技发展有限公司 | Pressure regulator for pressure regulation of outlet of gas pressure regulating valve |
-
2008
- 2008-12-09 CN CNU2008201808237U patent/CN201322122Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676062A (en) * | 2015-03-12 | 2015-06-03 | 宁波东钱湖旅游度假区圣莱思机电有限公司 | Double-stage gas energy-saving valve |
| CN105065768A (en) * | 2015-07-20 | 2015-11-18 | 南京伟易达机电科技发展有限公司 | Pressure regulator for pressure regulation of outlet of gas pressure regulating valve |
| CN105065768B (en) * | 2015-07-20 | 2018-08-24 | 南京伟易达机电科技发展有限公司 | Applied to the pressure controlled pressure regulator of gas pressure regulating valve upper outlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: NANJING VTECH ELECTRO-MECHANICAL TECHNOLOGY DEVELOPMENT CO., LTD. Assignor: Lin Jianzhou Contract record no.: 2012320000312 Denomination of utility model: Energy-saving type gas pressure reducing valve Granted publication date: 20091007 License type: Exclusive License Record date: 20120327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |