CN207622812U - A kind of hot type gas meter, flow meter of simple structure - Google Patents
A kind of hot type gas meter, flow meter of simple structure Download PDFInfo
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- CN207622812U CN207622812U CN201721807758.1U CN201721807758U CN207622812U CN 207622812 U CN207622812 U CN 207622812U CN 201721807758 U CN201721807758 U CN 201721807758U CN 207622812 U CN207622812 U CN 207622812U
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Abstract
The utility model discloses a kind of hot type gas meter, flow meters of simple structure, the cavity being tightly connected including watchcase, bottom plate and watchcase and bottom plate, watchcase is equipped with the air inlet being connected to cavity and gas outlet, be equipped in cavity control valve and with detection module, control valve includes the vavle shelf of upper and lower ends conducting, and vavle shelf is equipped with the sealing plate for mutually completely cutting off cavity and air inlet, the venthole to circulate for gas is offered on sealing plate, control valve further includes jam pot cover, and jam pot cover can opposite sealing plate activity in vavle shelf；Detection module includes the rectifier structure that shell, sensor and the gas of supplied gas flowing are shunted, and sensor and rectifier structure are respectively positioned on enclosure interior.The utility model internal structure is simpler, and the process for simplifying production and processing saves the processing cost of hot type gas meter, flow meter under the premise of ensureing hot type gas meter, flow meter measuring accuracy；This hot type gas meter, flow meter it is small, can be suitable for civilian resident family, be convenient for hot type gas meter, flow meter popularization.
Description
Technical field
The utility model is related to technical field of measurement and test, the hot type gas meter, flow meter of specially a kind of simple structure.
Background technology
Hot type gas meter, flow meter is one kind of thermal flowmeter, and thermal flowmeter uses thermal diffusion principle, and thermal diffusion technology is one
Plant the high technology of function admirable, reliability under severe conditions.The principle that thermal flowmeter specifically uses is had nothing in common with each other, and fire is utilized
Amplitude of fluctuation of the flame under airflow influence is come to measure flow be the metering method that a kind of accuracy is high, the pressure loss is small.Above-mentioned original
Detected in reason and be equipped with a flame in cavity, flame both sides are respectively provided with a temperature sensor, flame no air-flow by premise
Lower both sides are symmetrical, and the temperature that the temperature inductor on both sides detects is identical, and when there is medium by generating air-flow, flame is in air-flow
Drive under shift, the temperature sensor on flame both sides detects that different temperature generates temperature difference at this time, at this time basis
Temperature difference and the flow rate relationship of medium can obtain the flow of fluid.
It is excellent that above-mentioned hot type gas meter, flow meter has that accurate measurement, precision are high, small, anti-interference, the anti-impurity ability of the pressure loss is strong etc.
Point gradually enters instead of epithelium table in production industry.With the cleanings such as natural gas, the rapid development of high efficient energy sources, hot type combustion gas
Table also progresses into family, but is applicable in the universal bigger than normal and knot of hot type gas meter, flow meter build that is industrial or being partly applicable in family at present
Structure is complicated, is used to adapt to average family so that hot type gas meter, flow meter can further genralrlization, cope with industrial hot type combustion gas
Table is simplified and is improved so that family uses.
Utility model content
The purpose of this utility model is to provide for a kind of hot type gas meter, flow meter of simple structure, and internal structure is simpler,
The process for simplifying production and processing, saves being processed into for hot type gas meter, flow meter under the premise of ensureing hot type gas meter, flow meter measuring accuracy
This；This hot type gas meter, flow meter is small, and measures range is wide, can be suitable for civilian resident family, be convenient for the popularization of hot type gas meter, flow meter.
In order to achieve the above-mentioned object of the invention, the utility model uses following technical scheme：A kind of hot type of simple structure
Gas meter, flow meter, includes the cavity that watchcase, bottom plate and watchcase and bottom plate are tightly connected, the watchcase be equipped be connected to cavity into
Gas port and gas outlet, the cavity is interior equipped with the flow-limiting valve being connected to air inlet and the detection module being connected to gas outlet, described
Flow-limiting valve includes the vavle shelf of upper and lower ends conducting, and the vavle shelf is equipped with the sealing plate for mutually completely cutting off cavity and air inlet,
The venthole to circulate for gas is offered on the sealing plate, the flow-limiting valve further includes the jam pot cover for venthole of breaking seal, institute
Stating jam pot cover can opposite sealing plate activity in vavle shelf；The detection module includes the shell of supplied gas flowing, is used for meter gaseous stream
The sensor of amount and for entering the rectifier structure that is shunted of gas in shell, the sensor and the equal position of rectifier structure
In enclosure interior.
Gas enters from air inlet in gas meter, flow meter inner cavity, and gas flows into after the air inlet of gas meter, flow meter in flow-limiting valve, limit
Sealing plate and jam pot cover the control gas flowed in valve flows into cavity.After gas flows into cavity, flow through after detection module from gas meter, flow meter
It flows out gas outlet.Gas is during flowing through detection module, by rectifier structure rectification and sensor detection to reach meter
Measure the purpose of gas flow.
Compared with prior art, the hot type gas meter, flow meter of the simple structure of above-mentioned technical proposal is used, is had following beneficial
Effect：
One, using the hot type gas meter, flow meter of the simple structure of the utility model, gas meter, flow meter internal structure is simpler, simplifies life
The process of production and processing, processing cost is saved under the premise of ensureing hot type gas meter, flow meter measuring accuracy.
Two, the hot type gas meter, flow meter in the utility model is simple in structure so that gas meter, flow meter volume itself reduces, and can be suitable for
The popularization of hot type gas meter, flow meter is convenient in civilian resident family.
Preferably, the flow-limiting valve, cavity and detection module collectively form the U-typed air-flow flowed for gas in gas meter, flow meter
Channel.
Preferably, the rectifier structure for ease of by the grid of gas uniform divided flows be arranged.
Preferably, the flow-limiting valve further includes the valve motor for controlling jam pot cover movement, and valve motor is fixed on the outer of vavle shelf
Portion.
Preferably, the channel cross-section that supplied gas flows in the vavle shelf is rectangular, and the sealing plate is rectangular, and the sealing plate is
The height on one side is obliquely installed higher than opposite side height.
Preferably, the vavle shelf upper sealing plate, which is fixed higher side and is equipped with, is convenient for gas circulation more smoothly to hollow out area
Domain, the area of knockout are located at below sealing plate.
Preferably, the venthole is circle.
Preferably, the section of the jam pot cover is circle of the radius slightly larger than the radius of venthole.
Preferably, the shell includes inlet end, middle part and the sealed end being connect with gas outlet entered for gas,
The bore of the air inlet is more than the bore at middle part, and the middle part is identical as the bore of sealed end.
Preferably, the middle part is bore identical tubular structure everywhere, and the rectifier structure is located in detection module
Portion.
Description of the drawings
Fig. 1 is the structural schematic diagram of the hot type gas meter, flow meter embodiment of the utility model simple structure；
Fig. 2 is the structural schematic diagram that gas flows in the present embodiment；
Fig. 3 is the structural schematic diagram at A in Fig. 2；
Fig. 4 is the structural schematic diagram of vavle shelf in the present embodiment；
Fig. 5 is the internal structure schematic diagram that module is detected in the present embodiment；
Fig. 6 is the structural schematic diagram of rectifier structure in detection module in the present embodiment.
Reference numeral：11, air inlet；12, gas outlet；2, flow-limiting valve；21, vavle shelf；22, sealing plate；23, venthole；24, valve
Envelope；25, valve motor；26, area of knockout；3, module is detected；31, shell；32, rectifier structure；33, inlet end；34, sealed end.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
The hot type gas meter, flow meter of simple structure as depicted in figs. 1 and 2, including watchcase, bottom plate and watchcase and bottom plate seal
The cavity of connection, watchcase are equipped with the air inlet 11 being connected to cavity and gas outlet 12.Gas to be detected from air inlet 11 into
Enter gas meter, flow meter inside cavity to exclude inside gas meter, flow meter from gas outlet 12 after tested.It is equipped in cavity and to be connected to air inlet 11
Flow-limiting valve 2 and the detection module 3 being connected to gas outlet 12.Flow-limiting valve 2 has the vavle shelf 21 that a upper and lower ends are connected, and is set on vavle shelf 21
There are sealing plate 22, sealing plate 22 to be used for mutually completely cutting off cavity and air inlet 11.Since gas needs to circulate, opened up on sealing plate 22 useful
In the venthole 23 of gas circulation, flow-limiting valve 2 further includes the jam pot cover 24 for venthole 23 of breaking seal, and jam pot cover 24 can be in vavle shelf 21
Interior energy is with respect to 22 activity of sealing plate.Wherein, flow-limiting valve 2 further includes the valve motor 25 for controlling the movement of jam pot cover 24, and valve motor 25 is solid
It is scheduled on the outside of vavle shelf 21.Jam pot cover 24 is controlled by valve motor 25, after jam pot cover 24 blocks venthole 23, air inlet 11
It is separated by with gas meter, flow meter internal cavity, air-flow flowing does not occur inside gas meter, flow meter, valve motor 25 drives the movement of jam pot cover 24 and venthole
23 separation so that cavity is connected with air inlet 11, and gas enters cavity and makes there is gas flowing in gas meter, flow meter.
Gas occurs flowing and is detected to gas flow by detection module 3, and detection module 3 includes supplied gas flowing
Shell 31, the rectifier structure for the sensor of meter gaseous flow and for being shunted to entering the gas in shell 31
32, sensor and rectifier structure 32 are respectively positioned on inside shell 31.Gas air-flow after rectifier structure 32 is more uniform so that passes
It is more accurate that sensor can detect.
Dotted arrow indicates gas meter, flow meter internal gas flow direction in Fig. 2, and gas, which enters from air inlet 11 from gas outlet 12, to flow out,
By flow-limiting valve 2, cavity and detection module 3.It is collectively formed for gas in gas meter, flow meter between flow-limiting valve 2, cavity and detection module 3
The U-typed gas channel of flowing.
Fig. 3 is the enlarged drawing of structure between jam pot cover 24 and sealing plate 22 in Fig. 2, and Fig. 4 is the structure of vavle shelf 21 in the present embodiment
Schematic diagram.It can be seen that the channel cross-section that supplied gas flows in vavle shelf 21 is rectangular from Fig. 3 and Fig. 4, sealing plate 22 is rectangular, sealing plate
22 are higher than being obliquely installed for opposite side height for the height on one side.Sealing plate 22 is obliquely installed so that the venthole 23 on sealing plate 22 is being beaten
Gas can flow smoothly when opening, and enable the structure of jam pot cover 24 and motor more reasonable.
In the present embodiment, venthole 23 is circle, and the section of jam pot cover 24 is radius of the radius slightly larger than venthole 23
Circle, the shape between jam pot cover 24 and venthole 23 are mutually adapted, and ensure to be closed more between jam pot cover 24 and sealing plate 22
Closely and when jam pot cover 24 rotates, will not occur to generate the incongruent situation of shape due to angle due to being all circle.Such as
Shown in Fig. 3,21 upper sealing plate 22 of vavle shelf, which is fixed higher side and is equipped with, is convenient for gas circulation more smoothly area of knockout 26, hollows out
Region 26 is located at 22 lower section of sealing plate, and the dotted line wherein on vavle shelf 21 indicates area of knockout 26 so that gas can flow in flow-limiting valve 2
Dynamic is more smooth.
Be as shown in Figure 5 and Figure 6 detection module 3, shell 31 include the inlet end 33 entered for gas, middle part and with
The sealed end 34 that gas outlet 12 connects, the bore of air inlet 11 are more than the bore at middle part, gas are facilitated to enter detection mould from cavity
In group 3.The middle part for detecting the shell 31 of module 3 is identical as the bore of sealed end 34, and rectifier structure 32 is elongated structure, elongated knot
Structure is shown in Fig. 5.Middle part is bore identical tubular structure everywhere, and rectifier structure 32 is located at the middle part of detection module 3, such as schemes
Shown in 6, structure rectifying structure 32 is the network extended along gas flow direction with 31 middle part of shell, and network can incite somebody to action
Gas distribution more uniformly.
The above makes preferred embodiments of the present invention, does not depart from for those of ordinary skill in the art
Under the premise of the utility model principle, several variations and modifications can also be made, these also should be regarded as the protection of the utility model
Range.
Claims (10)
1. a kind of hot type gas meter, flow meter of simple structure includes the cavity of watchcase, bottom plate and watchcase and bottom plate sealed connection, described
Watchcase is equipped with the air inlet being connected to cavity（11）The gas outlet and（12）, it is characterised in that：It is equipped in the cavity and air inlet
Mouthful（11）The control valve of connection（2）With with gas outlet（12）The detection module of connection（3）,
The control valve（2）Include the vavle shelf of upper and lower ends conducting（21）, the vavle shelf（21）Be equipped with for by cavity with into
Gas port（11）The sealing plate mutually completely cut off（22）, the sealing plate（22）On offer the venthole to circulate for gas（23）, described
Control valve（2）Further include for venthole of breaking seal（23）Jam pot cover（24）, the jam pot cover（24）It is arranged in vavle shelf（21）It is interior, jam pot cover
（24）It can opposite sealing plate（22）Activity；The detection module（3）Include the shell of supplied gas flowing（31）, be used for meter gaseous stream
The sensor of amount and for entering shell（31）The rectifier structure that interior gas is shunted（32）, the sensor and whole
Flow structure（32）It is respectively positioned on shell（31）It is internal.
2. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The control valve（2）, cavity and
Detect module（3）Collectively form the U-typed gas channel flowed for gas in gas meter, flow meter.
3. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The rectifier structure（32）For just
It is arranged in by the grid of gas uniform divided flows.
4. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The control valve（2）Further include
For controlling jam pot cover（24）The valve motor of movement（25）, valve motor（25）It is fixed on vavle shelf（21）Outside.
5. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The vavle shelf（21）Interior supplied gas
The channel cross-section of flowing is rectangular, the sealing plate（22）To be rectangular, the sealing plate（22）It is higher than opposite side height for the height on one side
Be obliquely installed.
6. the hot type gas meter, flow meter of simple structure according to claim 5, it is characterised in that：The vavle shelf（21）Upper sealing plate
（22）Fixed higher side, which is equipped with, is convenient for gas circulation more smoothly area of knockout（26）, the area of knockout（26）It is located at
Sealing plate（22）Lower section.
7. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The venthole（23）For circle
Shape.
8. the hot type gas meter, flow meter of simple structure according to claim 7, it is characterised in that：The jam pot cover（24）Section be
Radius is slightly larger than venthole（23）Radius circle.
9. the hot type gas meter, flow meter of simple structure according to claim 1, it is characterised in that：The shell（31）Including being used for
The inlet end that gas enters（33）, middle part and and gas outlet（12）The sealed end of connection（34）, the air inlet（11）Mouth
Diameter is more than the bore at middle part, the middle part and sealed end（34）Bore it is identical.
10. the hot type gas meter, flow meter of simple structure according to claim 9, it is characterised in that：The middle part be bore everywhere
Identical tubular structure, the rectifier structure（32）Positioned at detection module（3）Middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807758.1U CN207622812U (en) | 2017-12-21 | 2017-12-21 | A kind of hot type gas meter, flow meter of simple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807758.1U CN207622812U (en) | 2017-12-21 | 2017-12-21 | A kind of hot type gas meter, flow meter of simple structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207622812U true CN207622812U (en) | 2018-07-17 |
Family
ID=62820427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721807758.1U Active CN207622812U (en) | 2017-12-21 | 2017-12-21 | A kind of hot type gas meter, flow meter of simple structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207622812U (en) |
-
2017
- 2017-12-21 CN CN201721807758.1U patent/CN207622812U/en active Active
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