CN110631649A - Energy-saving flowmeter - Google Patents
Energy-saving flowmeter Download PDFInfo
- Publication number
- CN110631649A CN110631649A CN201910808006.4A CN201910808006A CN110631649A CN 110631649 A CN110631649 A CN 110631649A CN 201910808006 A CN201910808006 A CN 201910808006A CN 110631649 A CN110631649 A CN 110631649A
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- CN
- China
- Prior art keywords
- valve
- flowmeter
- inner tube
- air inlet
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
Abstract
The invention discloses an energy-saving flowmeter which comprises a transparent outer pipe, a transparent inner pipe, an inner pipe base, a flowmeter body, a valve body, a piston group and a diaphragm assembly. The energy-saving flowmeter has the advantages that the waste of gas in use is reduced to the minimum, and the output flow is uniform and stable.
Description
Technical Field
The invention relates to an energy-saving flowmeter.
Background
At present, when the gas flowmeter in the prior art is used, the gas waste is large, and the pressure of gas output cannot be adjusted.
Disclosure of Invention
The invention provides an energy-saving flowmeter, which adopts the technical scheme that:
an energy-saving flowmeter comprises a transparent outer tube,
the transparent inner tube is positioned inside the transparent outer tube, an air passage is formed between the transparent inner tube and the transparent outer tube, and the air passage is communicated with the inner cavity of the transparent inner tube;
the lower end of the transparent inner tube is sleeved on the inner tube base, an air inlet channel of the inner tube base is axially formed in the inner tube base, an aluminum bead is movably placed at the tail end of the air inlet channel of the inner tube base, and the diameter of the aluminum bead is smaller than the inner diameter of the transparent inner tube and larger than the inner diameter of the air inlet channel of the inner tube base;
the gas cylinder gas-discharge sleeve type gas-liquid flow meter comprises a flow meter body, wherein a gas inlet and a gas outlet are formed in the flow meter body, a gas inlet connecting rod is inserted into the gas inlet, a gas inlet screw cap is sleeved on the gas inlet connecting rod, and the gas inlet connecting rod is connected with a gas cylinder gas outlet sleeve on a gas cylinder body; the inner pipe base is arranged in the flowmeter body, the transparent outer pipe is fixed on the flowmeter body, and the inner pipe base and the transparent inner pipe are fixed; the air inlet is communicated with an air inlet channel of the inner tube base, and the air outlet is communicated with an air channel;
the valve body is provided with a valve chamber and a buffer chamber, and a channel for communicating the valve chamber with the buffer chamber is arranged on the valve body between the valve chamber and the buffer chamber; a piston group is arranged in the valve chamber, a diaphragm assembly is arranged on the buffer chamber, and the piston group is pushed by the diaphragm assembly to open or close the flowmeter; the outer surface of the valve body is convexly provided with a section of connecting column which extends into the air outlet, and the air outlet is communicated with the valve chamber through a valve body air inlet passage arranged on the valve body; the valve body is provided with a valve body air outlet passage which is communicated with the buffer chamber, the outlet end of the valve body air outlet passage is provided with an air outlet connecting rod, and an air outlet nut is sleeved on the air outlet connecting rod;
the piston group comprises a high-pressure valve shaft, a high-pressure valve spring and a fixing nut, the high-pressure valve shaft and the high-pressure valve spring are assembled in the valve chamber by the fixing nut, the fixing nut is in threaded pair connection with the inner wall of the valve chamber, the high-pressure valve shaft and the high-pressure valve spring are both arranged in the fixing nut, a long shaft section of the high-pressure valve shaft extends into the channel, one end of the high-pressure valve spring abuts against the fixing nut, and the other end of the high-pressure valve spring is sleeved in a short shaft section of the high-pressure valve shaft and abuts against the short shaft section;
the diaphragm assembly comprises a diaphragm disc, a diaphragm gasket, a spring positioning shaft, a low-pressure spring, a spring fulcrum shaft, a valve cover and a pressure regulating bolt, wherein the diaphragm disc, the diaphragm gasket, the spring positioning shaft, the low-pressure spring and the spring fulcrum shaft are sequentially positioned in the valve cover; the pressure regulating bolt is in threaded connection with the valve cover and abuts against the end face of the spring support shaft.
Preferably, the first O-ring for sealing the transparent outer tube and the flowmeter body is arranged at the joint between the transparent outer tube and the flowmeter body. The first O-shaped sealing ring effectively ensures the sealing performance between the transparent outer pipe and the flowmeter body.
Preferably, the transparent outer pipe is in threaded connection with the flowmeter body.
Preferably, the second O-shaped sealing ring is arranged at the root part of the long shaft section of the high-pressure valve shaft. The setting of second O type sealing washer has guaranteed that the flowmeter is closing, and valve chamber and surge chamber cut off completely, can not cause gas leakage.
Preferably, a third O-shaped sealing ring is arranged between the fixing nut and the inner wall of the valve chamber. The third O-shaped sealing ring ensures the sealing performance between the piston group and the valve chamber.
Preferably, the diaphragm assembly further comprises a lock nut, the lock nut is in threaded connection with the pressure regulating bolt, and the lock nut is in threaded connection with the end of the valve cover. The locking nut locks the pressure regulating bolt and the valve cover, so that misoperation is prevented, and stable output of the flowmeter is prevented from being influenced.
Compared with the prior art, the invention has the advantages that:
the energy-saving flowmeter reduces the waste of gas in use to the minimum, and the output flow is uniform and stable.
Drawings
FIG. 1 is a cross-sectional view of a flow meter.
Fig. 2 is an exploded view of the flow meter.
Detailed Description
In order that the present invention may be more fully understood, reference is now made to the following description taken in conjunction with the accompanying drawings, which are set forth in part in the several figures of the drawing and in the several embodiments of the invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1 and 2, the energy-saving flowmeter comprises a transparent outer tube 08, a transparent inner tube 04, an inner tube base 03, a flowmeter body 01, a valve body 29, a piston group and a diaphragm assembly.
As shown in fig. 1 and 2, the transparent inner tube 04 and the transparent outer tube 08 are both provided with sealed top ends and open bottom ends, the transparent inner tube 04 is positioned inside the transparent outer tube 08, a stop block 06 is arranged on the inner wall of the top end of the transparent outer tube 08, an air passage is formed between the transparent inner tube 04 and the transparent outer tube 08, and the air passage is communicated with the inner cavity of the transparent inner tube 04; the lower end of the transparent inner tube 04 is sleeved on the inner tube base 03, an inner tube base air inlet channel is axially formed in the inner tube base 03, an aluminum bead 05 is movably placed at the tail end of the inner tube base air inlet channel, and the diameter of the aluminum bead 05 is smaller than the inner diameter of the transparent inner tube 04 and larger than the inner diameter of the inner tube base air inlet channel; the flowmeter body 01 is provided with an air inlet 01-1 and an air outlet 01-2, an air inlet connecting rod 10 is inserted into the air inlet 01-1, an air inlet screw cap 11 is sleeved on the air inlet connecting rod 10, and the air inlet connecting rod 10 is connected with an air outlet sleeve 5 of an air bottle on the body of the air bottle 1; the inner tube base 03 is installed in the flowmeter body 01, the transparent outer tube 08 is fixed to the flowmeter body 01 and fixes the inner tube base 03 and the transparent inner tube 04, and the transparent outer tube 08 is in threaded connection with the flowmeter body 01. A first O-ring seal 07 for sealing the transparent outer tube 08 and the flowmeter body 01 is provided at the joint between the transparent outer tube 08 and the flowmeter body 01. The first O-shaped sealing ring effectively ensures the sealing performance between the transparent outer pipe and the flowmeter body. The air inlet 01-1 is communicated with an air inlet channel of the inner tube base, and the air outlet 01-2 is communicated with an air passage.
As shown in fig. 1 and 2, a valve chamber 29-1 and a buffer chamber 29-4 are formed in the valve body 29, and a passage for communicating the valve chamber 29-1 with the buffer chamber 29-4 is formed in the valve body 29 between the valve chamber 29-1 and the buffer chamber 29-4; a piston group is arranged in the valve chamber 29-1, a diaphragm assembly is arranged on the buffer chamber 29-4, and the piston group is pushed by the diaphragm assembly to open or close the flowmeter; the outer surface of the valve body 29 is convexly provided with a section of connecting column which extends into the air outlet 01-2, and the air outlet 01-2 is communicated with the valve chamber 29-1 through a valve body air inlet passage 29-2 arranged on the valve body 29; the valve body 29 is provided with a valve body air outlet passage 29-3, the valve body air outlet passage 29-3 is communicated with the buffer chamber 29-4, the outlet end of the valve body air outlet passage 29-3 is provided with an air outlet connecting rod 26, and the air outlet connecting rod 26 is sleeved with an air outlet nut 27.
As shown in fig. 1 and 2, the piston assembly includes a high pressure valve shaft 22, a high pressure valve spring 23 and a fixing nut 25, the fixing nut 25 assembles the high pressure valve shaft 22 and the high pressure valve spring 23 in the valve chamber 29-1, the fixing nut 25 is in thread pair connection with the inner wall of the valve chamber 29-1, and a third O-ring 24 is arranged between the fixing nut 25 and the inner wall of the valve chamber 29-1. The third O-shaped sealing ring ensures the sealing performance between the piston group and the valve chamber. The high pressure valve shaft 22 and the high pressure valve spring 23 are both arranged in the fixing nut 25, the long shaft section of the high pressure valve shaft 22 extends into the channel, and the root of the long shaft section of the high pressure valve shaft 22 is provided with a second O-shaped sealing ring 21. The setting of second O type sealing washer has guaranteed that the flowmeter is closing, and valve chamber and surge chamber cut off completely, can not cause gas leakage. One end of the high-pressure valve spring 23 is propped against the fixing nut 25, and the other end of the high-pressure valve spring 23 is sleeved into the short shaft section of the high-pressure valve shaft 22 and propped against the short shaft section.
As shown in fig. 1 and 2, the diaphragm assembly includes a diaphragm 12, a diaphragm 13, a diaphragm gasket 14, a spring positioning shaft 15, a low-pressure spring 16, a spring fulcrum 17, a bonnet 18, a pressure regulating nut 19 and a pressure regulating bolt 20, the diaphragm 12, the diaphragm 13, the diaphragm gasket 14, the spring positioning shaft 15, the low-pressure spring 16 and the spring fulcrum 17 are sequentially located in the bonnet 18, the bonnet 18 is mounted on a valve body 29, and the diaphragm 12 is located on the side close to the long axis section of the high-pressure valve shaft 22; the pressure regulating bolt 20 is screwed to the valve cover 18 and abuts against the end face of the spring support shaft 17, the pressure regulating bolt 20 is screwed to the lock nut 19, and the lock nut 19 is screwed to the end of the valve cover 18.
The working process of the flowmeter of the embodiment is as follows:
when the flowmeter is not used, the root of the long shaft section of the high-pressure valve shaft 22 is provided with the second O-shaped sealing ring 21 to separate the valve chamber 29-1 from the buffer chamber 29-4, and no gas is discharged from the valve body gas outlet air passage 29-3.
When the flowmeter is used, the pressure regulating bolt 20 is rotated, the pressure regulating bolt 20 pushes the low-pressure spring 16 to drive the membrane disc 12 to move, the membrane disc 12 pushes the long shaft section of the high-pressure valve shaft 22, the valve chamber 29-1 is communicated with the buffer chamber 29-4, gas in the valve chamber 29-1 enters the buffer chamber 29-4, and gas is discharged from the gas outlet air passage 29-3 of the valve body.
The flowmeter of the embodiment is a component for a low-pressure pipeline, the inlet pressure is below 0.99MPa, the use temperature range of the flowmeter is-20 ℃ to 45 ℃, and if the temperature exceeds the temperature range, a thermostatic device is required to be adopted to enable the temperature of the working environment to be in the use range, so that the flowmeter cannot be placed in a direct sunlight environment or a liquid environment to work.
The flowmeter of the embodiment is strictly forbidden to be used for toxic, inflammable and corrosive gases.
The parts not involved in the present invention are the same as or implemented using the prior art.
The embodiments of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.
Claims (6)
1. An energy-saving flowmeter is characterized by comprising a transparent outer pipe (08),
the transparent inner tube (04) is positioned inside the transparent outer tube (08), an air passage is formed between the transparent inner tube (04) and the transparent outer tube (08), and the air passage is communicated with the inner cavity of the transparent inner tube (04);
the lower end of the transparent inner tube (04) is sleeved on the inner tube base (03), an inner tube base air inlet channel is formed in the inner tube base (03) along the axial direction, an aluminum bead (05) is movably placed at the tail end of the inner tube base air inlet channel, and the diameter of the aluminum bead (05) is smaller than the inner diameter of the transparent inner tube (04) and larger than the inner diameter of the inner tube base air inlet channel;
the flowmeter comprises a flowmeter body (01), wherein the flowmeter body (01) is provided with an air inlet (01-1) and an air outlet (01-2), an air inlet connecting rod (10) is inserted into the air inlet (01-1), an air inlet nut (11) is sleeved on the air inlet connecting rod (10), and the air inlet connecting rod (10) is connected with an air outlet sleeve (5) of an air bottle on the body of the air bottle (1); the inner tube base (03) is arranged in the flowmeter body (01), the transparent outer tube (08) is fixed on the flowmeter body (01) and fixes the inner tube base (03) and the transparent inner tube (04); the air inlet (01-1) is communicated with an air inlet channel of the inner tube base, and the air outlet (01-2) is communicated with an air passage;
the valve body (29) is provided with a valve chamber (29-1) and a buffer chamber (29-4), and a channel for communicating the valve chamber (29-1) with the buffer chamber (29-4) is formed in the valve body (29) between the valve chamber (29-1) and the buffer chamber (29-4); a piston group is arranged in the valve chamber (29-1), a diaphragm assembly is arranged on the buffer chamber (29-4), and the piston group is pushed by the diaphragm assembly to open or close the flowmeter; the outer surface of the valve body (29) is convexly provided with a connecting column which extends into the air outlet (01-2), and the air outlet (01-2) is communicated with the valve chamber (29-1) through a valve body air inlet passage (29-2) formed in the valve body (29); a valve body air outlet passage (29-3) is formed in the valve body (29), the valve body air outlet passage (29-3) is communicated with the buffer chamber (29-4), an air outlet connecting rod (26) is arranged at the outlet end of the valve body air outlet passage (29-3), and an air outlet nut (27) is sleeved on the air outlet connecting rod (26);
the piston group comprises a high-pressure valve shaft (22), a high-pressure valve spring (23) and a fixing nut (25), the high-pressure valve shaft (22) and the high-pressure valve spring (23) are assembled in a valve chamber (29-1) by the fixing nut (25), the fixing nut (25) is in threaded pair connection with the inner wall of the valve chamber (29-1), the high-pressure valve shaft (22) and the high-pressure valve spring (23) are both installed in the fixing nut (25), the long shaft section of the high-pressure valve shaft (22) extends into a channel, one end of the high-pressure valve spring (23) abuts against the fixing nut (25), and the other end of the high-pressure valve spring (23) is sleeved into the short shaft section of the high-pressure valve shaft (22) and abuts against the short shaft section;
the diaphragm assembly comprises a diaphragm disc (12), a diaphragm (13), a diaphragm gasket (14), a spring positioning shaft (15), a low-pressure spring (16), a spring fulcrum shaft (17), a valve cover (18) and a pressure regulating bolt (20), wherein the diaphragm disc (12), the diaphragm (13), the diaphragm gasket (14), the spring positioning shaft (15), the low-pressure spring (16) and the spring fulcrum shaft (17) are sequentially positioned in the valve cover (18), the valve cover (18) is installed on a valve body (29), and the diaphragm disc (12) is positioned on the side close to the long shaft section of the high-pressure valve shaft (22); the pressure regulating bolt (20) is connected with the valve cover (18) by screw thread and is pressed against the end surface of the spring fulcrum shaft (17).
2. The energy efficient flowmeter of claim 1, wherein a first O-ring seal (07) is provided at the junction between the transparent outer tube (08) and the flowmeter body (01) to seal the transparent outer tube (08) to the flowmeter body (01).
3. The energy efficient flowmeter of claim 2 wherein the transparent outer tube (08) is threadably connected to the flowmeter body (01).
4. The energy saving flowmeter of claim 1, wherein a second O-ring seal (21) is provided at the root of the long shaft section of the high pressure valve shaft (22).
5. Energy saving flowmeter according to claim 1, characterized in that a third O-ring (24) is arranged between the retaining nut (25) and the inner wall of the valve chamber (29-1).
6. The energy-saving flowmeter of claim 1, wherein the diaphragm assembly further comprises a lock nut (19), the lock nut (19) is in threaded connection with the pressure regulating bolt (20), and the lock nut (19) is in threaded connection with the end of the valve cover (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808006.4A CN110631649A (en) | 2019-08-29 | 2019-08-29 | Energy-saving flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808006.4A CN110631649A (en) | 2019-08-29 | 2019-08-29 | Energy-saving flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110631649A true CN110631649A (en) | 2019-12-31 |
Family
ID=68969406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910808006.4A Pending CN110631649A (en) | 2019-08-29 | 2019-08-29 | Energy-saving flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110631649A (en) |
-
2019
- 2019-08-29 CN CN201910808006.4A patent/CN110631649A/en active Pending
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