CN207937019U - A kind of flowmeter measuring tank of portable micro gas - Google Patents
A kind of flowmeter measuring tank of portable micro gas Download PDFInfo
- Publication number
- CN207937019U CN207937019U CN201721821471.4U CN201721821471U CN207937019U CN 207937019 U CN207937019 U CN 207937019U CN 201721821471 U CN201721821471 U CN 201721821471U CN 207937019 U CN207937019 U CN 207937019U
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- Prior art keywords
- gas
- control circuit
- measuring tank
- relay
- unit
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Abstract
The utility model provides a kind of flowmeter measuring tank of portable micro gas, gas dosing unit, control circuit unit, the gas piping unit installed including shell and Qi Nei, gas passes through the gas piping unit input and output gas dosing unit, control circuit unit controls gas dosing unit and carries out air inlet and exhaust cycle, and counts cycle-index.The utility model establishes minimum gas metering method using the operation principle of spring using simple device feature and circuit design, devises integrated form gas flowmeter measuring tank, has feature simple for process, easy to carry.And other liquid medias are not introduced into, it avoids as liquid to measurement error caused by the absorption of gas and Prolonged exposure in liquid to the risk of damage of electric elements.
Description
Technical field
The utility model belongs to gas flow measurement technical field, more particularly, to a kind of flow of portable micro gas
Batch meter.
Background technology
In laboratory aerogenesis biochemical test, leakage rate, coal seam gas burst size, the rock package of sealed product are detected
Many fields such as gas flow are required for the volume of accurate measuring trace quantity gas.Conventional commercial gas flowmeter is suitable for big flow
The volume of gas or pipeline gas detects, it is difficult to the measurement for realizing minimum gas flow, such as wet gas flow meter (detection range
200-2000L/h).And the price of gas flowmeter is higher, is difficult to extensive use.
The structure of existing trace gas measurement device is complex, and the electrical equipment being related to is more, increases later stage dimension
The workload of shield and maintenance cost and installation and debugging, and above-mentioned apparatus is inconvenient to carry, it is difficult to for showing under different places
Field exploration.
In addition, partial devices convert minimum gas metering to the variation of liquid weight or potential energy, though it can effectively measure gas
Body flow, but the absorbed situation of gas, and complicated electric elements Prolonged exposure are susceptible to for complicated component gas
It is easy in liquid environment impaired.
Invention content
In view of this, the utility model is directed to a kind of flowmeter measuring tank of portable micro gas, with using simple
Device feature and circuit design, realize the accurate measurement of minimum gas.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of flowmeter measuring tank of portable micro gas, including shell and the gas dosing unit of Qi Nei installations, control
Circuit unit, gas piping unit, gas pass through the gas piping unit input and output gas dosing unit, control circuit list
Member control gas dosing unit carries out air inlet and exhaust cycle, and counts cycle-index.
Further, the gas dosing unit includes glass sleeve, piston, spring, push rod, gas lid, collet, the glass
Glass sleeve one end connects gas lid, and one end connects collet, and the gas is covered equipped with air inlet and gas outlet；The piston, spring and
Push rod is arranged in glass sleeve, and push rod one end connects piston, and the stroke initial point position of the push rod other end is provided with first
Travel switch；Spring is arranged in the push rod periphery, and one end is withstood on piston the spring in the initial state, and the other end withstands on bottom
In support, and it is in certain compressive state.
Further, the gas piping unit includes first gas pipeline, second gas pipeline, the first gas pipe
The one end on road connects air inlet hole connector, the air inlet that other end connection gas covers；One end of the second gas pipeline connects gas
The gas outlet covered, the other end connect outlet hole connector.
Further, the control circuit unit includes the plant-grid connection unit and electric control circuit of electrical connection, electrically
Control circuit includes the first relay, the second relay, the first solenoid valve, second solenoid valve, the first travel switch, the second stroke
Switch and counter, the first solenoid valve are arranged on first gas pipeline, and second solenoid valve is arranged on second gas pipeline；Institute
It is normal open switch to state the first travel switch, and the second travel switch is normally closed switch, and the first travel switch is sequentially connected in series the second relay
The control circuit of the normally-closed contact of device, the second travel switch and the first relay, and the both ends of the normally opened contact of the first relay
With the first stroke switch in parallel；Normally opened contact the first solenoid valve of series connection of first relay, the first solenoid valve control connection count
Device；The control circuit of normally-closed contact the second relay of series connection of first relay, the normally opened contact control connection of the second relay
Second solenoid valve；In addition, connecing alternating current by 220V input power sockets, the 220V input power socket other ends are switched by ship type
Control circuit is accessed with power supply adaptor.
Further, plant-grid connection unit includes 220V input powers socket 1, ship type switch, power supply adaptor, and 220V is defeated
Enter the power outlet other end and electric control circuit is accessed by ship type switch and power supply adaptor.
Further, the shell one side cooperation upper cover forms electronic box, and outer side face is equipped with supply hub, air admission hole
Connector, outlet hole connector, counter, ship type switch.
Further, the length of the push rod can be adjusted by the screw thread of its end.
Further, the glass sleeve is equipped with scale.
Compared with the existing technology, the utility model has the advantage that：
(1) this programme establishes trace gas using the operation principle of spring using simple device feature and circuit design
Body metering method devises integrated form gas flowmeter measuring tank, has feature simple for process, easy to carry.And do not draw
Enter other liquid medias, avoids as liquid to measurement error caused by the absorption of gas and Prolonged exposure in liquid
To the risk of damage of electric elements in body.
(2) design technology and circuit are simple, and the electric elements type used is less, and each unit critical piece is integrated in electricity
It among case, is convenient for carrying, different occasions can be placed in and carry out on-site land survey；And the operation is stable, installation and repairing is convenient, cost-effective,
With practicability.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is the structure principle chart of flowmeter measuring tank described in the utility model embodiment；
Fig. 2 is the side view of batch meter described in the utility model embodiment；
Fig. 3 is the circuit diagram of control circuit unit described in the utility model embodiment.
Reference sign：
1- shells, 2- first gas pipelines, 3- gas lids, 4- second solenoid valves, the second travel switches of 5-, 6- pistons, 7- glass
Glass sleeve, 8- the second gas collecting apparatus holders, 9- push rods, 10- bottom covers, the first travel switches of 11-, 12- backing boards, 13- first collect
Device of air holder, 14- springs, 15-220V sockets, the first relays of 16-, the second relays of 17-；18- counters, 19- power supplys
Adapter；20- ship types switch；21- outlet hole connectors, 22- air inlet hole connectors, the first solenoid valves of 23-, 24- second gas pipelines,
25- upper covers.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of flowmeter measuring tank of portable micro gas, as shown in Figure 1, including gas dosing unit, control circuit list
Member, gas piping unit and shell 1,
The gas dosing unit includes glass sleeve 7, piston 6, spring 14, push rod 9, gas lid 3, bottom cover 10, the glass
7 one end of glass sleeve is tightly connected gas lid 3, and one end connects bottom cover 10, and the gas lid 3 is equipped with air inlet and gas outlet；The work
Plug 6, spring 14 and push rod 9 are arranged in glass sleeve 7, and 9 one end of push rod connects piston 6, the stroke starting of 9 other end of push rod
Point position disposes the first travel switch 11；9 periphery setting spring 14 of the push rod, the spring 14 in the initial state push up by one end
On piston 6, the other end is withstood on bottom cover 10, and is under compressive state appropriate, and 14 bullet of spring is utilized when ensureing to be vented
Power can vent gas, piston 6 move when spring 14 further compress；The middle part of the glass sleeve 7 is filled by the first gas collection
The inside that holder 13 is fixed on shell 1 is set, bottom cover 10 is fixed on shell 1 by backing board 12 and the second gas collecting apparatus holder 8
Inside；
The gas piping unit includes first gas pipeline 2, second gas pipeline 24, the first solenoid valve 23 and the second electricity
Magnet valve 4, one end connection air inlet hole connector 22 of the first gas pipeline 2, the other end connection gas lid 3 after the first solenoid valve 23
On air inlet；Gas outlet on one end connection gas lid 3 of the second gas pipeline 24, the other end after second solenoid valve 4
Connect outlet hole connector 21；Test gas is inputted by air inlet hole connector 22, is exported by outlet hole connector 21；
As shown in figure 3, the control circuit unit includes 220V input powers socket 15, ship type switch 20, power adaptation
Device 19 and electric control circuit, electric control circuit include the first relay 16, the second relay 17, the first solenoid valve 23, the
Two solenoid valves 4, the first travel switch 11, the second travel switch 5 and counter 18, first travel switch 11 are normally opened open
It closes, the second travel switch 5 is normally closed switch, and the first travel switch 11 is sequentially connected in series the normally-closed contact of the second relay 17, second
The control circuit of travel switch 5 and the first relay 16, and the both ends of the normally opened contact of the first relay 16 are opened with the first stroke
It is in parallel to close 11；Normally opened contact the first solenoid valve 23 of series connection of first relay 16, the first solenoid valve 23 control linkage counter 18；
The control circuit of normally-closed contact the second relay 17 of series connection of first relay 16, the normally opened contact control of the second relay 17 connect
Connect second solenoid valve 4；In addition, connecing alternating current by 220V input power sockets, the 220V input power socket other ends pass through ship type
Switch 20 and power supply adaptor 19 access control circuit.
As shown in Fig. 2, the shell 1 is open on one side, opening side coordinates upper cover 25 by gas dosing unit, control circuit
Unit, gas piping unit surround to form electronic box, shell 1 be equipped with supply hub, air inlet hole connector 22, outlet hole connector 21,
The components such as counter 18, ship type switch 20.
The glass sleeve 7 is equipped with scale, to measure less than quantitative gas volume data.
The length of the push rod 9 can be adjusted by the screw thread of its end, by adjusting the length of push rod 9, can be adjusted
The stroke that whole piston 6 moves.
Measurement of gas flow process is as follows：
Gas is inputted by air inlet hole connector 22, is flowed through the first solenoid valve of air inlet 23, into gas dosing unit, is then flowed through
Second solenoid valve 4 is discharged through outlet hole connector 21.
During gas dosing unit gas collection, the first solenoid valve 23 is in an open state, and second solenoid valve 4 is in off state,
The movement of gas push piston 6 is to drive push rod 9 to move, when 9 right end of push rod touches the first travel switch 11：First stroke
Switch 11 acts, and counter 18 counts once, and the first solenoid valve 23 is closed, and second solenoid valve 4 is opened, and spring 14 pushes piston 6
It resets, the gas in gas dosing unit is discharged, when piston 6 returns to initial position, the second travel switch 5 of shake-up, second
Solenoid valve 4 is closed, and the first solenoid valve 23 is opened, and initial set gaseity is returned to.In this process, each cycle rate counter 18
It is triggered primary, the gas volume and number demarcated according to gas dosing unit single, it can be deduced that flow through the device gas
Total volume achievees the purpose that measure gas flow.
Electrical control flow：
1, gas collection process：Air inlet hole connector 22 and outlet hole connector 21 are connected, after closing ship type switch 20, the first relay
16 (KM1) are off, and the second relay 17 (KM2) is closed, and the first solenoid valve 23 is in the open state, the
Two solenoid valves 4 are closed；
2, exhaust process：After collecting full gas in gas collecting apparatus, push rod 9 touches the first travel switch 11, i.e. ST1 is closed
It closes, the coil of KM1 is powered, and normally opened KM1 switches are closed, circuit self-locking, and unison counter 18 and the work of the first solenoid valve 23 are normally closed
Switch KM1 is disconnected, KM2 coil blackouts, and second solenoid valve 4 disconnects, and the first solenoid valve 23 is closed at this time, the second electromagnetism
Valve 4 is in the open state, and counter 18 counts once, and the first travel switch 11 (ST1) disconnects in exhaust process, since circuit is set
Self-locking is counted, KM1 coils are constantly in energized state.After the completion of exhaust, spring 14 pushes push rod 9 to playback, and after keeping in the center, touches
Dynamic second travel switch 5 (ST2), i.e. normally closed switch ST2 are disconnected, and KM1 coil blackouts, auto-lock process releases, and KM1 coils disconnect,
KM1 normal open switch is in the open state, and normally closed switch is in closed state, and KM2 coils are in energized state, at this time the first electromagnetism
Valve 23 disconnects, and second solenoid valve 4 is in running order, restores gas collection process.
, counter 18 counts primary with regard to counting that can be seen that exhaust process each time by electrical control flow
It is multiplied by single gas collecting apparatus collection tolerance, it can be deduced that device always collects tolerance.
The calibration of gas volume and calibration method:
Gas dosing unit spring 14, gas volume have due to the influence of elastic force and temperature with the gas volume under standard state
Certain error needs to demarcate gas dosing unit before use.When calibration, the gas volume of single discharge is received
Collection, measures the volume under its constant temperature normal pressure, to calculate the gas volume under standard state.Push rod 9 inside gas dosing unit is grown
Degree can be adjusted by end thread, by adjusting 9 length of push rod, can adjust the stroke of the movement of piston 6, reach calibration stream
The purpose of gauge single collection air volume.
Flowmeter is inspected periodically：
Periodically the volume of flowmeter single discharge is demarcated, if error is excessive, checks the lubricity and gas of piston 6
Close property.6 intermittent oiling of piston improves lubricity, reduces resistance.If measuring biogas etc. containing the more gas of dross, first setting is washed
Gas cylinder, prevention dross enter gas circuit with bubble.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of flowmeter measuring tank of portable micro gas, it is characterised in that：The gas dosing installed including shell and Qi Nei
Unit, control circuit unit, gas piping unit,
Gas controls gas dosing unit by the gas piping unit input and output gas dosing unit, control circuit unit
Air inlet and exhaust cycle are carried out, and counts cycle-index.
2. a kind of flowmeter measuring tank of portable micro gas according to claim 1, it is characterised in that：The aerometer
Amount unit includes glass sleeve, piston, spring, push rod, gas lid, collet, and glass sleeve one end connects gas lid, one end connection
Collet, the gas are covered equipped with air inlet and gas outlet；The piston, spring and push rod are arranged in glass sleeve, push rod
One end connects piston, and the stroke initial point position of the push rod other end is provided with the first travel switch；Bullet is arranged in the push rod periphery
Spring, one end is withstood on piston the spring in the initial state, and the other end is withstood on collet, and is in certain compressive state
Under.
3. a kind of flowmeter measuring tank of portable micro gas according to claim 2, it is characterised in that：The flue
Road unit includes first gas pipeline, second gas pipeline, and one end of the first gas pipeline connects air inlet hole connector, another
The air inlet that end connection gas covers；The gas outlet that one end connection gas of the second gas pipeline covers, the other end connect outlet
Hole connector.
4. a kind of flowmeter measuring tank of portable micro gas according to claim 3, it is characterised in that：The control electricity
Road unit includes the plant-grid connection unit and electric control circuit of electrical connection, and electric control circuit includes the first relay, second
Relay, the first solenoid valve, second solenoid valve, the first travel switch, the second travel switch and counter, the setting of the first solenoid valve
On first gas pipeline, second solenoid valve is arranged on second gas pipeline；
First travel switch is normal open switch, and the second travel switch is normally closed switch, and the first travel switch is sequentially connected in series the
The control circuit of the normally-closed contact of two relays, the second travel switch and the first relay, and the normally opened contact of the first relay
Both ends and the first stroke switch in parallel；Normally opened contact the first solenoid valve of series connection of first relay, the first solenoid valve control connect
Connect counter；The control circuit of normally-closed contact the second relay of series connection of first relay, the normally opened contact control of the second relay
System connection second solenoid valve；In addition, connecing alternating current by 220V input power sockets, the 220V input power socket other ends pass through ship
Type switchs and power supply adaptor accesses control circuit.
5. a kind of flowmeter measuring tank of portable micro gas according to claim 1, it is characterised in that：Plant-grid connection list
Member includes 220V input powers socket 1, ship type switch, power supply adaptor, and the 220V input power socket other ends are opened by ship type
It closes and power supply adaptor accesses electric control circuit.
6. a kind of flowmeter measuring tank of portable micro gas according to claim 5, it is characterised in that：The shell one
Side coordinates upper cover to form electronic box, and outer side face is equipped with supply hub, air inlet hole connector, outlet hole connector, counter, ship type
Switch.
7. a kind of flowmeter measuring tank of portable micro gas according to claim 2, it is characterised in that：The push rod
Length can be adjusted by the screw thread of its end.
8. a kind of flowmeter measuring tank of portable micro gas according to claim 2, it is characterised in that：The glass sock
Cylinder is equipped with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721821471.4U CN207937019U (en) | 2017-12-23 | 2017-12-23 | A kind of flowmeter measuring tank of portable micro gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721821471.4U CN207937019U (en) | 2017-12-23 | 2017-12-23 | A kind of flowmeter measuring tank of portable micro gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937019U true CN207937019U (en) | 2018-10-02 |
Family
ID=63646658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721821471.4U Expired - Fee Related CN207937019U (en) | 2017-12-23 | 2017-12-23 | A kind of flowmeter measuring tank of portable micro gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207937019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990951A (en) * | 2017-12-23 | 2018-05-04 | 天津农学院 | A kind of flowmeter measuring tank of portable micro gas |
-
2017
- 2017-12-23 CN CN201721821471.4U patent/CN207937019U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990951A (en) * | 2017-12-23 | 2018-05-04 | 天津农学院 | A kind of flowmeter measuring tank of portable micro gas |
| CN107990951B (en) * | 2017-12-23 | 2024-05-28 | 天津农学院 | Portable micro-gas flow measuring box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20191223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |