CN111442186A

CN111442186A - Flow monitoring device for liquefied gas tank

Info

Publication number: CN111442186A
Application number: CN201910038595.2A
Authority: CN
Inventors: 罗德里格斯·桑切斯·弗朗西斯科·塞巴斯蒂安
Original assignee: Copa Technology Co ltd
Current assignee: Copa Technology Co ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-07-24

Abstract

The invention discloses a flow monitoring device for a liquefied gas tank, which comprises a pressure valve, a pulse valve, a flow meter, an output port, a knob rod, a switch handle, a switch shaft, an air inlet device, a supporting piece and a clamping piece. The monitoring device with the structure rotates the knob, the knob rod is linked with the switch handle, the switch shaft is rotated, and the push rod of the air inlet device is pushed out by the switch shaft, so that the air outlet device of the air bottle is triggered. When the knob is in an OFF state, the knob is pressed, the linked knob rod and the switch handle extrude a switch spring in the switch handle, the switch handle drives a clamping column on the clamping piece to push the clamping ring away, and the canned gas cylinder is separated from a gas cylinder ring groove of the gas inlet device; the knob is in the ON state, can't push the rand open, and the canned gas cylinder can't deviate from the gas cylinder annular groove, prevents that the gas from leaking and causing the extravagant and safety problem of energy.

Description

Flow monitoring device for liquefied gas tank

Technical Field

The invention relates to the field of flowmeters, in particular to a flow monitoring device for a liquefied gas tank.

Background

In some places, the infrastructure for delivering natural gas through a supply line is not widespread, so that canned liquefied gas needs to be purchased, but the gas outlet of the existing liquefied gas tank is a manual valve, and the valve needs to be manually closed after use, so that natural gas leakage is often caused. Most of the existing gas pressure valves adopt a switch hook to hook the gas outlet end of a gas cylinder, and meanwhile, a valve needle moves downwards to trigger a gas outlet device of the gas cylinder, so that gas is guided into a valve body, gas leakage can be caused during operation, and if a liquefied gas cylinder is separated from the pressure valve in the using process, the gas leakage is more, and greater harm is caused.

Disclosure of Invention

The embodiment of the invention provides a flow monitoring device for a liquefied gas tank, which aims to solve the problems of separation of the liquefied gas tank from a pressure valve and gas leakage in the using process. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, there is provided a flow rate monitoring apparatus for a liquefied gas tank, characterized in that: the pressure valve comprises a shell, and a pressure valve, a switch handle, a switch shaft and an air inlet device which are arranged in the shell, wherein the bottom of the pressure valve is provided with the air inlet device, the air outlet end of the pressure valve is connected with the air inlet end of a pulse valve, the air outlet end of the pulse valve is connected with an output port through a flowmeter, a knob rod vertically penetrates through the side wall of the shell, one exposed end of the knob rod is provided with a knob, one end of the knob rod, which is positioned in the shell, is fixedly connected with a sleeve connecting rod of the switch handle through a screw, an air inlet nozzle is arranged in the air inlet device, a push rod and a push rod spring are arranged in the air inlet nozzle, the push rod spring is sleeved outside the push rod, one end of the push rod, which is far away from the push rod spring, vertically penetrates into an air cavity of the pressure valve, the push rod is contacted, The second stopper, the switch shaft is close to switch handle one end sets up the second boss, second boss top sets up the third stopper, the third stopper is arranged in switch handle's switch hole is downthehole, set up the swizzle pin on the switch pore wall perpendicularly, second boss butt switch spring one end, the switch spring other end supports switch hole bottom, air inlet unit leans on the bottom of casing sets up gas cylinder annular, fourth stopper.

Set up support piece, fastener in the casing, support piece with casing bottom fixed connection, the support piece top sets up first support bar, second support bar, first card post, first step, switch handle is equipped with first annular, the fastener is equipped with rand and second card post, the rand with the second card post that first annular drove promotes the rand to keeping away from the suction nozzle direction, the moving direction of rand with the axial lead of suction nozzle is perpendicular, there is the draw-in groove fastener bottom, the side of second boss with the fore-set of fastener contacts, the fourth stopper card is in first step with the rand top.

The third limiting block is far away from one side of the switch spring and is provided with a second groove, and the switch pin extends into the second groove.

The outer wall of the switch shaft is provided with a first annular groove, and an O-shaped ring is arranged between the first annular groove and the wall of the pressure valve air chamber.

The switch shaft, the switch spring, the switch handle and the knob rod are coaxial.

Switch handle with cup joint pole integrated into one piece, the switch axle first boss with third stopper integrated into one piece, bottle annular groove, fourth stopper and suction nozzle integrated into one piece, first support bar, second support bar, first card post and first step integrated into one piece, rand, draw-in groove, second card post and fore-set integrated into one piece.

The technical scheme provided by the embodiment of the invention has the following beneficial effects: the anti-disassembly pressure valve adopting the structure is connected with fuel gas, the knob is rotated, the knob rod is linked with the switch handle, the switch shaft is rotated, and the push rod of the gas inlet device is pushed out by the switch shaft, so that the gas outlet device of the gas cylinder is triggered. When the knob is in an OFF state, the knob is pressed, the linked knob rod and the switch handle extrude a switch spring in the switch handle, the switch handle drives a clamping column on the clamping piece to push the clamping ring away, and the canned gas cylinder is separated from a gas cylinder ring groove of the gas inlet device; the knob is in the ON state, even press the knob, the fore-set ON the fastener is blocked between switch shaft and switch handle, can't push the rand open, prevents that the gas cylinder from deviating from in the gas cylinder annular in the use to effectual gas leakage that prevents causes the extravagant and safety problem of energy.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a partial schematic view of the section A-A in FIG. 2;

FIG. 4 is a schematic structural view of the switch handle, the switch shaft and the air inlet device;

fig. 5 is a schematic structural view of the support member and the card member.

Detailed Description

The present invention will be described in further detail with reference to the drawings and the embodiments, but the following description of the embodiments is illustrative and not intended to limit the present invention.

Referring to fig. 1 to 5, a flow rate monitoring device for a liquefied gas tank is characterized in that: the pressure valve comprises a shell 1, a pressure valve 2, a switch handle 6, a switch shaft 7 and an air inlet device 8, wherein the pressure valve 2, the switch handle 6, the switch shaft 7 and the air inlet device 8 are arranged in the shell 1, the air outlet end of the pressure valve 2 is connected with the air inlet end of a pulse valve 3, the air outlet end of the pulse valve 3 is connected with an output port 11 through a flowmeter 4, a knob rod 5 vertically penetrates through the side wall of the shell 1, one exposed end of the knob rod 5 is provided with a knob 5a, one end, located in the shell 1, of the knob rod 5 is fixedly connected with a sleeve rod 6d of the switch handle 6 through a screw 11, an air inlet nozzle 8c is arranged in the air inlet device 8, a push rod 13 and a push rod spring 13a are arranged in the air inlet nozzle 8c, the push rod spring 13a is sleeved outside the push rod 13, one end, far away from the push rod spring 13a, of the push rod spring 13a vertically penetrates, switch shaft 7 rotate set up in the gas chamber of valve body 2, 7 outer walls of switch shaft have first stopper 7c, second stopper 7d, switch shaft 7 is close to 6 one end of switch handle sets up second boss 7e, second boss 7e top sets up third stopper 7f, third stopper 7f is arranged in switch hole 6b of switch handle 6, set up swizzle 6c on the switch hole 6b wall perpendicularly, second boss 7e butt switch spring 12 one end, the switch spring 12 other end supports switch hole 6b bottom, air inlet unit 8 leans on the bottom of casing 1 sets up gas cylinder annular 8a, fourth stopper 8 b.

Set up support piece 9, fastener 10 in the casing 1, support piece 9 with 1 bottom fixed connection of casing, support piece 9 top sets up first support strip 9a, second support strip 9b, first card post 9c, first step 9d, switch handle 6 is equipped with first annular 6a, fastener 10 is equipped with rand 10a and second card post 10c, rand 10a with the second card post 10c that first annular 6a drove promotes rand 10a to keeping away from inlet nozzle 8c direction, rand 10 a's moving direction with inlet nozzle 8 c's axial lead is perpendicular, there is draw-in groove 10b fastener 10 bottom fastener 10, the side of second boss 7e with the support post 10d of fastener 10 contacts, fourth stopper 8b card is in first step 9d with rand 10a top.

A second groove 7f1 is formed on one surface of the third limiting block 7f, which is far away from the switch spring 12, and the switch pin 6c extends into the second groove 7f 1.

The outer wall of the switch shaft 7 is provided with a first ring groove 7b, and an O-shaped ring 14 is arranged between the first ring groove 7b and the wall of the air cavity of the pressure valve 2.

The switch shaft 7, the switch spring 12, the switch handle 6 and the knob rod 5 are coaxial.

Switch handle 6 with cup joint pole 6d integrated into one piece, switch axle 7 first boss 7a with third stopper 7f integrated into one piece, bottle annular 8a, fourth stopper 8b and suction nozzle 8c integrated into one piece, first support bar 9a, second support bar 9b, first card post 9c and first step 9d integrated into one piece, rand 10a, draw-in groove 10b, second card post 10c and fore-set 10d integrated into one piece.

In this embodiment, the flow meter 4 is a sonic flow meter, the knob 5a is turned OFF downward, and the knob 5a is turned ON upward. The bottom of the clamping ring 10a is an inclined surface, when the gas cylinder is installed from the gas inlet of the supporting piece 9, the gas cylinder pushes the clamping ring 10a away from the gas inlet nozzle 8c, the clamping ring 10a is linked with the top column 10d to stop at the position of the second limiting block 7d, meanwhile, the second clamping column 10c drives the switch handle 6 to extrude the switch spring 12, and the gas cylinder slides into the gas cylinder annular groove 8 a; after the gas cylinder slides into the gas cylinder annular groove 8a, the switch spring 12 is reset, the switch handle 6 and the clamping piece 10 are restored to the original position (shown in figure 3), and the gas cylinder is clamped in the gas cylinder annular groove 8a by the clamping ring 10 a; in the process of loading the gas cylinder, along with the expansion and contraction of the switch spring 12, the first clamping column 9c moves back and forth in the clamping groove 10b, and the expansion and contraction range of the switch spring 12 can be limited and controlled, so that the switch spring 12 which is most easily deformed is protected. When the knob 5a is in an OFF state, the surface A of the first limiting block 7c is in contact with the step of the pressure valve 2, the first boss 7a is in contact with the push rod 13, when the gas cylinder is used, the knob 5a is turned to ON from OFF, the knob rod 5 is linked with the switch handle 6 and turns the switch shaft 7, the surface A of the second limiting block 7d is in contact with the step of the pressure valve 2, and along with the turning of the switch shaft 7, the push rod 13 is pushed out from the gas cavity of the pressure valve 2 by the first boss 7a, so that the gas outlet device of the gas cylinder is triggered. When the knob 5a is in an OFF state, the knob 5a is pressed, the knob rod and the switch handle 6 which are linked push the switch spring 12, the first ring groove 6a drives the second clamping column 10c leftwards, the clamping ring 10a is pushed away towards the direction far away from the air inlet nozzle 8c, and the canned gas cylinder is separated from the gas cylinder ring groove 8 a; when the knob 5a is in an ON state, even if the knob 5a is pressed, the top pillar 10d is clamped between the surface B of the first limiting block 7c and the switch handle 6, the clamping ring 10a cannot be pushed away in the direction away from the air inlet nozzle 8c, and the canned gas cylinder cannot be separated from the gas cylinder annular groove 8 a. The gas cylinder is prevented from being separated from the gas cylinder ring groove in the using process, and the problems of energy waste and safety caused by gas leakage are effectively prevented.

The invention can also realize the communication with the server by matching with GPRS or SMS, and control the valve switch of the invention by mobile phone (GPRS/SMS/Bluetooth or other modes) or card swiping (RFID), and has the functions of real-time charging and fee deduction, intelligent data transmission, alarming, unlocking prevention and the like. In the areas not covered by the natural gas pipe network, poor population income is low, and the purchase cost of a whole tank of liquefied gas cannot be borne, so most of the areas use charcoal and wood as fuel for heating and cooking. The invention utilizes the technology of Internet of things and the unique mechanical design, can charge a small part of money every day in poor areas to enable the other side to use the liquefied gas, and the device automatically closes the valve after charging and using until charging again, so that the valve can be opened again for use, thereby realizing that people can use the liquefied gas.

The above description is only a preferred embodiment of the present invention, and is not limited to the above specific embodiment, and the technical solutions that achieve the object of the present invention by basically the same means are within the protection scope of the present invention.

Claims

1. A flow rate monitoring device for a liquefied gas tank, characterized in that: comprises a shell (1) and a pressure valve (2), a switch handle (6), a switch shaft (7) and an air inlet device (8) which are arranged in the shell (1), wherein the bottom of the pressure valve (2) is provided with the air inlet device (8), the air outlet end of the pressure valve (2) is connected with the air inlet end of a pulse valve (3), the air outlet end of the pulse valve (3) is connected with an output port (11) through a flowmeter (4), a knob rod (5) vertically penetrates through the side wall of the shell (1), one exposed end of the knob rod (5) is provided with a knob (5a), one end of the knob rod (5) which is positioned in the shell (1) is fixedly connected with a sleeve rod (6d) of the switch handle (6) through a screw (11), an air inlet nozzle (8c) is arranged in the air inlet device (8), and a push rod (13) and a push rod spring (13a) are arranged in the air inlet nozzle (8, the push rod spring (13a) is sleeved outside the push rod (13), one end of the push rod (13) far away from the push rod spring (13a) vertically penetrates into an air cavity of the pressure valve (1), the push rod (13) is contacted with the side surface of a first boss (7a) of the switch shaft (7), the switch shaft (7) is rotatably arranged in an air cavity of the valve body (2), a first limiting block (7c) and a second limiting block (7d) are arranged on the outer wall of the switch shaft (7), one end of the switch shaft (7) close to the switch handle (6) is provided with a second boss (7e), the top of the second boss (7e) is provided with a third limiting block (7f), the third limiting block (7f) is arranged in a switch hole (6b) of the switch handle (6), a switch pin (6c) is vertically arranged on the wall of the switch hole (6b), one end of the second boss (7e) is abutted against a switch spring (12), the other end of the switch spring (12) abuts against the bottom of the switch hole (6b), and the air inlet device (8) abuts against the bottom of the shell (1) to be provided with an air bottle ring groove (8a) and a fourth limiting block (8 b).

2. The flow rate monitoring device for the liquefied gas tank according to claim 1, wherein a support member (9) and a latch member (10) are provided in the housing (1), the support member (9) is fixedly connected to the bottom of the housing (1), a first support bar (9a), a second support bar (9b), a first latch post (9c), and a first step (9d) are provided at the top of the support member (9), the switch handle (6) is provided with a first annular groove (6a), the latch member (10) is provided with a collar (10a) and a second latch post (10c), the collar (10a) and the second latch post (10c) driven by the first annular groove (6a) push the collar (10a) away from the inlet nozzle (8c), the collar (10a) moves in a direction perpendicular to the axial line of the inlet nozzle (8c), the bottom of the clamping piece (10) is provided with a clamping groove (10b), the side surface of the second boss (7e) is in contact with a top column (10d) of the clamping piece (10), and the fourth limiting block (8b) is clamped at the top of the first step (9d) and the clamping ring (10 a).

3. A flow rate monitoring device for a liquefied gas tank according to claim 1, wherein a second recess (7f1) is provided in a face of said third stopper (7f) remote from said opening/closing spring (12), and said opening/closing pin (6c) is inserted into said second recess (7f 1).

4. A flow rate monitoring device for a liquefied gas tank according to claim 1, wherein a first ring groove (7b) is provided on an outer wall of said opening/closing shaft (7), and an O-ring (14) is provided between said first ring groove (7b) and a wall of an air chamber of said pressure valve (2).

5. A flow rate monitoring device for a liquefied gas tank according to claims 1 to 4, wherein said switch shaft (7), said switch spring (12), said switch handle (6) and said knob lever (5) are coaxial.

6. The flow rate monitoring device for a liquefied gas tank according to any one of claims 1 to 4, wherein the switch lever (6) is integrally formed with the stem (6d), the switch shaft (7), the first boss (7a) and the third stopper (7f) are integrally formed, the cylinder ring groove (8a), the fourth stopper (8b) and the intake nozzle (8c) are integrally formed, the first stay (9a), the second stay (9b), the first catch (9c) and the first step (9d) are integrally formed, and the collar (10a), the groove (10b), the second catch (10c) and the top post (10d) are integrally formed.