CN205001854U - Liquefied gas cylinder - Google Patents
Liquefied gas cylinder Download PDFInfo
- Publication number
- CN205001854U CN205001854U CN201520774546.2U CN201520774546U CN205001854U CN 205001854 U CN205001854 U CN 205001854U CN 201520774546 U CN201520774546 U CN 201520774546U CN 205001854 U CN205001854 U CN 205001854U
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- CN
- China
- Prior art keywords
- liquefied gas
- heating wire
- output terminal
- gas tank
- tank body
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a liquefied gas cylinder, its technical scheme main points are including the jar body, the bottom detachable of the jar body be provided with the base, the base on be provided with the heater strip that is used for the base heating of the jar body, the base on still be provided with the control circuit who is used for switching heater strip operating condition. The utility model discloses can reach convenient realization to the use of liquefied gas, the effectual rate of utilization that improves jar internal liquefied gas, also can avoid the long -time heating to liquefied gas cylinder, realize worker module's automatic work, guarantee the normal use of liquefied gas.
Description
Technical field
The utility model relates to a kind of steel cylinder field, and more particularly, it relates to a kind of liquefied gas tank.
Background technique
Liquefied gas storage is the specialty products of storage liquid liquefied oil gas, special equipment, and product itself is that steel are made, and has certain anti-pressure ability.
The tank body of existing liquefied gas tank is mostly single layer structure, not there is antifreeze function, at the extremely frigid zones of some high latitudes, use to cause because temperature is too low during liquid gas the liquid state bottom liquefied gas tank body depressed freezing live, can not meet user demand, run into this problem, common way is positioned in warm water basin by tank body to heat body, the bothersome effort of this method, and impracticable.
For the problems referred to above, patent publication No. is that the Chinese patent of CN202082609U discloses a kind of device be convenient to be arranged on coal gas periphery and contributed to using up coal gas in gas-tank, namely around tank body, place an annular water storage groove be incubated the liquid gas in tank body, there is following defect in this scheme: first, water in annular water storage groove is easy to be frozen at extremely frigid zones, and annular water storage groove itself does not cover tank surface completely, heat insulation effect is undesirable, secondly, annular water storage groove is separated setting with tank body, use needs manual-alignment to install, operation inconvenience, for above problem, need to be improved existing liquefied gas tank.
Model utility content
For the deficiency that prior art exists, main purpose of the present utility model is to provide a kind of liquefied gas tank, and it effectively the LNG gasifaction frozen in liquefied gas tank, can provide the utilization rate of liquefied gas tank with this.
For realizing above-mentioned main purpose, the utility model adopts following technological scheme: a kind of liquefied gas tank, comprise tank body, the bottom of described tank body is dismountable is provided with pedestal, described pedestal being provided with the heating wire for the bottom-heated to tank body, described pedestal being also provided with the control circuit for switching heating wire works state.
As preferably, described pedestal is provided with the heat conduction board with the bottom close contact of tank body, described heating wire is arranged on this heat conduction board.
As preferably, described heating wire is S shape or is evenly distributed on heat conduction board in strip.
As preferably, described heat conduction board with abut flexible between pedestal.
As preferably, described control circuit comprises
Testing module, for detecting the temperature of tank base and exporting a control signal at its output terminal;
Operational module, for receiving the control signal of testing module and switching the working state of heating wire according to this control signal.
As preferably, described testing module comprises
Detection unit, this detection unit has
First output terminal, exports the first electric potential signal, and
Second output terminal, exports the second electric potential signal;
Comparing section, this comparing section has
In-phase input end, is coupled to the second output terminal of detection unit;
Inverting input, is coupled to the first input end of detection unit; And
Output terminal, exports control signal.
As preferably, described detection unit comprises
First point of splenium, by one first resistance and a thermistor in series;
Second point of splenium, is made up of one second resistance and one the 3rd resistant series;
Wherein, this thermistor is NTC thermistor.
As preferably, described operational module comprises
One VCC power supply;
One triode, its
Collector electrode is coupled to VCC power supply,
Base stage is coupled to the output terminal of testing module;
Certain value resistance, is coupled between the emitter of triode and heating wire,
The other end ground connection of heating wire.
Compared with prior art, the utility model has: by the bottom of tank body by dismountable pedestals that arranges of mode such as common bolt, snap closes, pedestal is provided with heating wire, pedestal is also provided with a control circuit, realized the switching of the working state of heating wire by this control circuit, namely realize the switching that heating wire heat/does not heat two states.By such scheme, the use to liquid gas can either be realized easily, effectively raise the utilization rate of liquid gas in tank body; Also can avoid the long-time heating to liquefied gas tank, achieve the automatic operation of operational module, ensure that the normal use of liquid gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model liquefied gas tank embodiment;
Fig. 2 is heating wire is the structural representation that S shape is evenly arranged on heat conduction board;
Fig. 3 is heating wire is the structural representation that strip is evenly arranged on heat conduction board;
Fig. 4 is control circuit schematic diagram;
Fig. 5 is the schematic diagram of testing module in Fig. 4;
Fig. 6 is the schematic diagram of detection unit in testing module;
Fig. 7 is the schematic diagram of operational module in Fig. 4.
In figure: 1, tank body; 2, pedestal; 3, heating wire (L in circuit theory diagrams); 4, heat conduction board; 5, elastic component; 6, control circuit; 100, testing module; 110, detection unit; 111, first point of splenium; 112, first point of splenium; 120, comparing section; 200, operational module.
Embodiment
Referring to figs. 1 through Fig. 7, the structure of the embodiment of the utility model liquefied gas tank is described further.
A kind of liquefied gas tank, comprise tank body 1, mode is dismountable is provided with a pedestal 2 by common bolt, snap close etc. for the bottom of tank body 1, pedestal 2 is provided with heating wire 3, heating wire 3 is used to heat the bottom of tank body 1, pedestal 2 is also provided with a control circuit 6, is realized the switching of the working state of heating wire 3 by this control circuit 6, namely realize heating wire 3 and heat/do not heat the switching of two states.
It is emphasized that the critical temperature using the normal temperature of liquid gas to refer to when liquid gas freezes in liquefied gas tank, this critical temperature is depending on concrete area.When external temperature is lower than this critical temperature, namely the temperature of tank body 1 is lower than this critical temperature, then the liquid gas in tank body 1 will freeze, and now control circuit 6 will be connected, and allows heating wire 3 heat; And when external temperature is higher than this critical temperature, namely the temperature of tank body 1 is higher than this critical temperature, then the liquid gas in tank body 1 would not freeze, and that is now control circuit 6 is published picture turnoff state, and heating wire 3 is idle.
Consider that heating wire 3 directly contacts the mode of heating of tank body 1, the liquid gas in tank body 1 is easily allowed to be heated uneven, the less effective of heating, therefore a heat conduction board 4 can be set on the base 2, heating wire 3 is in S shape or be arranged on heat conduction board 4 uniformly in strip, its structure is as Fig. 2, shown in 3, and ensure that heat conduction board 4 is with the bottom close contact of tank body 1, heat first can be passed to heat conduction board 4 when such heating wire 3 heats, by the effect of heat conduction board 4 even heat is delivered on tank body 1 again, so just can realize homogeneous heating to the bottom of tank body 1, strengthen the effect of whole heating wire 3 heating.Coordinate the detachable of top base 2 again, such setting can also be applicable to other liquefied gas tanks, and flexibility is higher.
In addition, can also arrange the elastic components 5 such as such as spring between heat conduction board 4 and pedestal 2, and make elastic component 5 be compressed between heat conduction board 4 and pedestal 2, its structure as shown in Figure 1.Even if tank body 1 is installed to after on pedestal 2 like this, and there is certain gap between heat conduction board 4, also can utilize and by the return action of the elastic component 5 pairs of heat conduction boards 4 compressed, heat conduction board 4 upwards be pushed, further guarantee that heat conduction board 4 close contact is in the bottom of tank body 1 with this, thus the drawback of bringing heat-conducting effect to be deteriorated because there is space bottom heat conduction board 4 and tank body 1 can be avoided.
As for the control circuit 6 in whole scheme, can be following design:
Control circuit 6 comprises testing module 100 and these two modules of operational module 200.Testing module 100 is used for the temperature detected bottom tank body 1 and then exports the control signal of a high low potential at its output terminal; Operational module 200 is used for receiving the control signal of high low potential that testing module 100 exports, and realizes the switching of heating wire 3 working state according to this control signal.
Wherein, testing module 100 is divided into detection unit 110 and comparing section 120 two parts, as shown in Figure 5,
Detection unit 110 is an electric bridge, as shown in Figure 6, is divided into:
First point of splenium 111, in series by thermistor Rx and the first resistance R1;
Second point of splenium 112, in series by the second resistance R2 and the 3rd resistance R3;
Wherein, this thermistor Rx is NTC thermistor, and is arranged on the bottom of tank body 1, and the resistance of the first resistance R1, the second resistance R2 and the 3rd resistance R3 is all equal.Electric bridge is followed in series to form by thermistor Rx, the first resistance R1, the second resistance R2 and the 3rd resistance R3, a VCC supply coupling is between thermistor Rx and the second resistance R2, between ground terminal to the first resistance R1 and the 3rd resistance R3, VCC power supply is 5V.
First output terminal is coupled between thermistor Rx and the first resistance R1, is used for the first electric potential signal that output detections arrives;
Second output terminal is coupled between the second resistance R2 and the 3rd resistance R3, is used for the second electric potential signal that output detections arrives.
Comparing section 120 is operational amplifiers, and model is LM358, and it has:
An in-phase input end a, is coupled to the second output terminal of detection unit;
An inverting input b, is coupled in the first input end of detection unit;
An output terminal, is used for exporting the control signal of high and low current potential.
When external temperature is lower than this critical temperature, thermistor Rx resistance is large, first output terminal of detection unit 110 exports low-potential signal, be input to the inverting input b of operational amplifier, now the second output terminal exports a high potential signal, be input to in-phase input end a, the output terminal of operational amplifier exports a high petential control signal.
When external temperature is higher than this critical temperature, thermistor Rx resistance is little, first output terminal of detection unit 110 exports a high potential signal, be input to the inverting input b of operational amplifier, now the second output terminal exports a high potential signal, be input to in-phase input end a, the output terminal of operational amplifier just can export a low potential control signal.
This makes it possible to be realized the automatic object controlled of operational module 200 by thermistor Rx.
Operational module 200 comprises
VCC power supply;
Triode Q, its
Collector electrode is coupled to VCC power supply,
Base stage is coupled to the output terminal of testing module;
Fixed value resistance R0, is coupled between the emitter of triode Q and heating wire 3, the other end ground connection of heating wire 3, as shown in Figure 7.
When external temperature is higher than this critical temperature, the base stage of triode Q receives the low-potential signal that testing module 100 output terminal exports, and triode Q ends, operational module 200 open circuit, and namely now heating wire 3 does not heat;
When external temperature is lower than this critical temperature, the base stage of triode Q receives the high potential signal that testing module 100 output terminal exports, triode Q conducting, operational module 200 conducting, namely now heating wire 3 heats, and so just realizes the automatic switchover of heating wire 3 working state by triode Q.
When the liquid gas in liquefied gas tank freezes, namely now use the temperature of liquid gas too low, testing module 100 output terminal exports a high potential signal, after the input end of operational module 200 receives high potential signal, control circuit 6 can conducting, and heating wire 3 now heats, the heat that heating wire 3 produces is delivered to the bottom of tank body 1, realize the heating bottom tank body 1, the liquid gas frozen in liquefied gas tank can gasify after absorbing heat, thus realizes the supply of liquid gas;
When the liquid gas in liquefied gas tank does not freeze, namely now use the temperature of liquid gas normal, testing module 100 output terminal exports a low-potential signal, after the input end of operational module 200 receives low-potential signal, control circuit 6 open circuit, heating wire 3 stops heating, thus ensure that the normal use of liquid gas.
Namely such set-up mode can either realize the use to liquid gas easily, effectively raises the utilization rate of liquid gas in tank body 1; Also can avoid the long-time heating to liquefied gas tank, achieve the automatic operation of operational module 200, ensure that the normal use of liquid gas.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a liquefied gas tank, comprise tank body, it is characterized in that: the bottom of described tank body is dismountable is provided with pedestal, described pedestal is provided with the heating wire for the bottom-heated to tank body, described pedestal being also provided with the control circuit for switching heating wire works state.
2. liquefied gas tank according to claim 1, is characterized in that: described pedestal is provided with the heat conduction board with the bottom close contact of tank body, described heating wire is arranged on this heat conduction board uniformly.
3. liquefied gas tank according to claim 2, is characterized in that: described heating wire is S shape or is evenly distributed on heat conduction board in strip.
4. liquefied gas tank according to claim 2, is characterized in that: described heat conduction board with abut flexible between pedestal.
5., according to described liquefied gas tank arbitrary in claim 1-4, it is characterized in that: described control circuit comprises
Testing module, for detecting the temperature of tank base and exporting a control signal at its output terminal;
Operational module, for receiving the control signal of testing module and switching the working state of heating wire according to this control signal.
6. liquefied gas tank according to claim 5, is characterized in that: described testing module comprises
Detection unit, this detection unit has
First output terminal, exports the first electric potential signal, and
Second output terminal, exports the second electric potential signal;
Comparing section, this comparing section has
In-phase input end, is coupled to the second output terminal of detection unit;
Inverting input, is coupled to the first input end of detection unit; And
Output terminal, exports control signal.
7. liquefied gas tank according to claim 6, is characterized in that: described detection unit comprises
First point of splenium, by one first resistance and a thermistor in series;
Second point of splenium, is made up of one second resistance and one the 3rd resistant series;
Wherein, this thermistor is NTC thermistor.
8. liquefied gas tank according to claim 5, is characterized in that: described operational module comprises
One triode, its
Collector electrode is coupled to VCC power supply,
Base stage is coupled to the output terminal of testing module;
Certain value resistance, is coupled between the emitter of triode and heating wire,
The other end ground connection of heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774546.2U CN205001854U (en) | 2015-10-08 | 2015-10-08 | Liquefied gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774546.2U CN205001854U (en) | 2015-10-08 | 2015-10-08 | Liquefied gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001854U true CN205001854U (en) | 2016-01-27 |
Family
ID=55158740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520774546.2U Expired - Fee Related CN205001854U (en) | 2015-10-08 | 2015-10-08 | Liquefied gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006130A (en) * | 2019-11-26 | 2020-04-14 | 徐州海天石化有限公司 | Liquefied gas steel cylinder heating device |
-
2015
- 2015-10-08 CN CN201520774546.2U patent/CN205001854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006130A (en) * | 2019-11-26 | 2020-04-14 | 徐州海天石化有限公司 | Liquefied gas steel cylinder heating device |
| CN111006130B (en) * | 2019-11-26 | 2021-10-01 | 徐州海天石化有限公司 | Liquefied gas steel cylinder heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20211008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |