阅读说明：本技术 节能型流量计 (Energy-saving flowmeter ) 是由 林建州 曾素珍 于 2019-08-29 设计创作，主要内容包括：本发明公开了一种节能型流量计,包括透明外管、透明内管、内管基座、流量计本体、阀体、活塞组和膜片组件。优点,本节能型流量计,将使用中的气体浪费降至最低,输出流量均匀稳定。(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.)

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).

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.