CN203131420U - Snap break device and pump filling device with same - Google Patents
Snap break device and pump filling device with same Download PDFInfo
- Publication number
- CN203131420U CN203131420U CN 201320087695 CN201320087695U CN203131420U CN 203131420 U CN203131420 U CN 203131420U CN 201320087695 CN201320087695 CN 201320087695 CN 201320087695 U CN201320087695 U CN 201320087695U CN 203131420 U CN203131420 U CN 203131420U
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- Prior art keywords
- breaking
- joint
- pump
- near switch
- breaking device
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- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000001960 triggered effect Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 abstract 2
- 239000003949 liquefied natural gas Substances 0.000 description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000001034 Frostbite Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a snap break device and a pump filling device with the same. The snap break device comprises a first connecting pipe, a second connecting pipe, a snap break connector and an approaching switch, wherein one end of the first connecting pipe and one end of the second connecting pipe are respectively connected with two ends of the snap break connector, the approaching switch and the snap break connector are spaced at a fixed distance, and the fixed distance stays within a non-triggering range specified by a model number of the approaching switch. The pump filling device comprises a liquid discharging pipe, a PLC (programmable logic controller), a pump, a container and a snap break device, wherein a pump is controlled by the PLC to be started or stopped, the approaching switch is connected with the PLC, and when the liquid discharging pipe drives the snap break connector to be away from the approaching switch, and the distance between the approaching switch and the snap break connector exceeds the non-triggering range, the approaching switch is triggered, so that the PLC transmits a signal for stopping the pump. The snap break device is simple in structure. The pump filling device with the snap break device is safe and reliable.
Description
Technical field
The utility model relates to a kind of breaking device that uses when unloading liquid with the pump filing provision, and has the band pump filing provision of this breaking device.
Background technique
When utilizing moving belt pump filing provision to unload liquid to tank body, if the unexpected movement of filing provision will cause delivery hose to be broken, make leaked liquid, for example medium: the LNG(LNG Liquefied natural gas), the danger such as then can producing blast if LNG Liquefied natural gas leaks.In addition as cryogenic liquide: media such as oxygen, nitrogen, argon are in case reveal probably with the personnel's frostbite that is in contact with it.Therefore mentioning the liquid-unloading pump system in TSG R0005-2011 in case of emergency should have quick hold function, prevents from revealing.
Equally along with the development at LNG Liquefied natural gas (LNG) liquid feeding station, NB/T1001-2011 " LNG Liquefied natural gas (LNG) Vehicle Fueling Station technical specification " is to the safety control of LNG filling device and use and proposed the requirement cut off about aerating, that is: flexible pipe is under any external force effect, and refueling system has from cutting off function.
Used breaking device, for example patent No.: CN102620022A to disclose the online Pull breaking ualve of LNG on the market.As shown in Figure 1, Pull breaking ualve comprises the breaking device of breaking pipe joint 1, being connected with filling device instrument airduct road 8 that connects filling device liquid outlet 6 and liquid feeding rifle 7.If because driver's carelessness, when not taking off as yet, starts by liquid feeding rifle 7 automobile, breaking pipe joint 1 is subjected to external force and is at first broken, after breaking pipe joint 1 and being broken, breaking device 2 beginning pressure releases, pneumatic valve 5 beginning exhausts reduce pneumatic valve 5 internal air pressures after breaking device 2 pressure releases, pneumatic valve 5 cuts out automatically when air pressure is lower than certain value, cuts off liquid stream.
Yet the effect of above-mentioned Pull breaking ualve is sealing liquid, stops liquid to flow out, and can not cut off root, that is, can not in time pump be stopped.Because the medium in the filling device is frozen liq, behind leak of liquid, can gasify at once, its volume be about with amount gaseous natural gas volume 1 than hundreds of, in case it is huge to leak energy, danger is bigger, therefore, if can not in time pump be stopped, flow velocity is very fast behind the pump, the pressure pcl liter, may cause pipeline breaking, consequence is serious.
In addition, the Pull breaking ualve technology is perfect inadequately at present, and many Pull breaking ualves break down through regular meeting, is broken when some external force is very little, still can not be broken when some pulling force is big, unloads the liquid pipe and but breaks, and liquid constantly leaks.And, existing Pull breaking ualve complex structure, manufacture cost is higher.
The model utility content
Main purpose of the present utility model is to provide a kind of breaking device simple in structure and has the band pump filing provision of this breaking device, with the safe and reliable liquid that unloads.
The utility model provides a kind of breaking device, it comprises first takes over, second takes over, breaks joint and near switch, described first end of taking over is connected described two ends of breaking joint respectively with second end of taking over, described near switch with break joint with the fixed range setting, described fixed range is in the non-trigger range of described model defined near switch.
Wherein, described first take over and second adapter and describedly break the end that joint is connected and be the wedge shape, the described inboard shape of breaking the joint two ends take over described first and second take over corresponding so that described first take over and second adapter all with the described joint drive fit of breaking.
Wherein, the described joint outer wall of breaking is hexagon, and the described joint of breaking is taken over to being threaded with first adapter and second.
Wherein, the described outer rim of breaking the middle part of joint is provided with groove, and the bottom surface of described groove is the described minimum wall thickness (MINI W.) of breaking the joint outer wall with the distance of breaking the joint inner edge, describedly aligns with groove near switch.
Wherein, described groove is cone tank.
The utility model also provides a kind of band pump filing provision, it comprises and unloads the liquid pipe, the PLC controller, pump, container and above-mentioned breaking device, described container is connected by pipeline with breaking device, described pump is located on the described pipeline, be used for the liquid in the described container is extracted out, described breaking device with unload the liquid pipe and be connected, described pump opens or cuts out by described PLC controller control, describedly be connected with the PLC controller near switch, when the described moving described joint of breaking of liquid pipe racks that unloads moves near switch away from described, make described near switch and when breaking distance between the joint and exceeding non-trigger range, describedly be triggered near switch, make described PLC controller spread out of the signal that described pump is stopped.
Wherein, described first the other end of taking over is connected with pipeline with the described liquid pipe that unloads respectively with second the other end of taking over.
Wherein, described pipeline is provided with bearing, describedly is installed on the described bearing near switch.
Wherein, described band pump filing provision also comprises Emergeny Cutoff Valves and solenoid valve, and described Emergeny Cutoff Valves is located on the described pipeline, and between described pump and breaking device, when being triggered near switch, described PLC controller is closed by the described Emergeny Cutoff Valves of described electromagnetic valve when described.
Wherein, described container is low-temperature pressure container.
The beneficial effects of the utility model are, breaking device of the present utility model is mainly by breaking joint and be used near switch, when leaving and set position range and can stop pump operation immediately with breaking joint near switch, stop liquid to flow out fully.Therefore, the band pump filing provision with this breaking device can prevent that when unloading liquid a large amount of sprays of liquid from letting out, and the danger of avoiding causing thus takes place, and is safe and reliable.And this breaking device is simple in structure, cost is low.
Description of drawings
Fig. 1 is the use principle figure of the online Pull breaking ualve of existing LNG.
Fig. 2 is the scheme of installation of breaking device of the present utility model.
Fig. 3 is the sectional view of breaking joint of breaking device.
Fig. 4 is the plan view of breaking joint.
Fig. 5 is first schematic representation of taking over.
Fig. 6 is the annexation schematic representation with band pump filing provision of breaking device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
Present embodiment is to describe with the example of LNG filling device as band pump filing provision, be to be understood that, band pump filing provision of the present utility model is not limited only to this fixed apparatus of LNG filling device, also can be portable filing provision, the filling content is not limited to LNG Liquefied natural gas, can also be other cryogenic liquide: as liquid oxygen, liquid nitrogen, liquid argon etc.
Breaking device can be applicable to all band pump filing provisions such as LNG filling device, band pump mobile device, in order to cut off liquid or gas, prevents from leaking.
As shown in Figure 6, the band pump filing provision with breaking device of the present utility model comprises and fills mouthfuls 10, unloads liquid pipe 20, breaking device 30, PLC controller 40, Emergeny Cutoff Valves 50, solenoid valve 60, pump 70 and pressurized container 80.Breaking device 30 with unload liquid pipe 20 and be connected.In the pressurized container 80 frozen liq is housed, pressurized container 80 is communicated with by pipeline 36 with breaking device 30, and pipeline 36 is provided with pump 70 and Emergeny Cutoff Valves 50, and pump 70 and Emergeny Cutoff Valves 50 all are communicated with PLC controller 40.Spread out of the signal that pump 70 is stopped by PLC controller 40.Should be appreciated that can use existing electronic pump to set up with the PLC controller is electrically connected, and can control the PLC controller to electronic pump, because it is prior art, so do not give unnecessary details at this.
Be provided with solenoid valve 60 between PLC controller 40 and the Emergeny Cutoff Valves 50, unlatching by PLC controller 40 control solenoid valves 60 or close, when PLC controller 40 spreads out of the signal of closing solenoid valve 60, solenoid valve 60 control Emergeny Cutoff Valvess 50 cut out, and flow to the frozen liq that fills mouth 10 thereby cut off.Breaking device 30 can control 40 pairs of pumps 70 of PLC controller and solenoid valve 60 according to unloading the situation that liquid pipe 20 is pulled, and below breaking device 30 is elaborated.
As shown in Figure 2, breaking device 30 comprises that first takes over and 31, second to take over 32, break joint 33 and near switch 34.First takes over 31, second takes over an end of 32 and penetrates the two ends of breaking joint 33 respectively, and the other end is designed to and unloads material and the specification that liquid pipe 20 and pipeline 36 are complementary, and is used for respectively and unloads liquid pipe 20 and be connected with pipeline 36, is preferably welding.
As shown in Figure 6, be connected with PLC controller 40 near switch 34, and near switch 34 with break joint 33 and arrange with fixed range D, this fixed range D guarantees to be in the non-trigger range near the model defined of switch 34, be pulled when breaking joint 33, itself and widened near the distance between the switch 34 so that exceed when setting non-trigger range near switch 34, be triggered near switch 34, spread out of by PLC controller 40 and close solenoid valve 60 and termination of pumping 70 signals.
Wherein, pipeline 36 is provided with bearing 35, is installed on the bearing 35 near switch 34.Should be appreciated that the mounting type near switch 34 is not limited thereto, also can be installed in first and take in 31 or second adapter 32.
Preferably, the end that joint 33 is broken in the insertion of first adapter, 31 and second adapter 32 is the wedge shape, because the structure of first adapter, 31 and second adapter 32 is roughly the same, so only first adapter 31 shown in Figure 5 describes.Shown in Fig. 3,4, inboard shape and first adapter, 31 and second adapter 32 of breaking joint 33 two ends are corresponding, break joint 33 outer walls and can be processed into hexagon, so that dismounting.Be preferably, the good sealing performance thread forms can be processed in the joint of breaking joint 33 and first adapter, 31 and second adapter 32.The outer rim of breaking the middle part of joint 33 is provided with groove, is preferably cone tank S, makes that breaking joint 33 is easier to be broken, in the present embodiment, and bottom land width W ≈ 2mm.Be set to align with cone tank S near switch 34, if breaking joint 33 is broken by cone tank S place, then be triggered immediately near switch 34.The bottom surface of cone tank S and the distance of breaking joint 33 inner edges, be the minimum wall thickness (MINI W.) δ that breaks joint 33 outer walls, can calculate minimum wall thickness (MINI W.) δ when breaking joint 33 and being broken according to the size of pulling force and pipe internal pressure, for example, if requiring less pulling force to make to break joint 33 is broken, then can design minimum wall thickness (MINI W.) δ less.
In addition, break joint 33 and can adopt toughness tubing preferably, for example: copper, stainless steel etc.
If because workman carelessness, just moving vehicle when not unloading liquid pipe 20 then unloads liquid pipe 20 and is pulled, and drives to break joint 33 away near switch 34.If pulling force is less, then break joint 33 away from tilting near switch 34, if pulling force is bigger, then breaking joint 33 is directly broken, in a word, no matter pulling force is big or little, can both make and break joint 33 and change near the fixed range D between the switch 34, make it exceed triggering distance range near the model defined of switch 34, close solenoid valve 60 and termination of pumping 70 signals thereby spread out of by PLC controller 40, solenoid valve 60 control Emergeny Cutoff Valvess 60, stop the outflow of liquid, simultaneously pump 70 has been shut down, stoped the power of a large amount of outflows of liquid, prevent the explosion of pipeline, guaranteed its Security.
Therefore, breaking device of the present utility model is mainly by breaking joint and being used near switch, to guarantee in the distance near the model defined of switch near switch and the fixed position of breaking joint during installation, when near switch with break joint and leave and set position range and can stop pump operation immediately, stop liquid to flow out fully, be not as existing breaking device, only can cut off liquid stream, and can not make pump out of service, therefore the liquid in the pressurized container still is being pumped out, if can not in time stop pump, then leaked liquid.
In addition, in the band pump filing provision of using breaking device of the present utility model, no matter it is big or little for the pulling force that unloads the liquid pipe, can both make and break joint and change near the fixed range between the switch, triggering is near switch, pump is stopped, comparing its accuracy, highly sensitive with existing breaking device.
In view of above-mentioned reason, the utility model provides a kind of safe and reliable and simple in structure, breaking device that cost is low, initiation security incident when avoiding that for example the pipeline of band pump filing provision such as LNG filling device, band pump mobile device is broken by accident.
Also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. breaking device, it is characterized in that: it comprises first takes over, second takes over, breaks joint and near switch, described first end of taking over is connected described two ends of breaking joint respectively with second end of taking over, described near switch with break joint with the fixed range setting, described fixed range is in the non-trigger range of described model defined near switch.
2. breaking device according to claim 1, it is characterized in that: described first take over and second adapter and describedly break the end that joint is connected and be the wedge shape, the described inboard shape of breaking the joint two ends take over described first and second take over corresponding so that described first take over and second adapter all with the described joint drive fit of breaking.
3. breaking device according to claim 1, it is characterized in that: the described joint outer wall of breaking is hexagon, described break that joint is taken over first and second adapter for being threaded.
4. breaking device according to claim 1, it is characterized in that: the described outer rim of breaking the middle part of joint is provided with groove, the bottom surface of described groove is the described minimum wall thickness (MINI W.) of breaking the joint outer wall with the distance of breaking the joint inner edge, describedly aligns with groove near switch.
5. breaking device according to claim 4, it is characterized in that: described groove is cone tank.
6. band pump filing provision, it is characterized in that: it comprises and unloads the liquid pipe, the PLC controller, pump, container reaches as each described breaking device among the claim 1-5, described container is connected by pipeline with breaking device, described pump is located on the described pipeline, be used for the liquid in the described container is extracted out, described breaking device with unload the liquid pipe and be connected, described pump opens or cuts out by described PLC controller control, describedly be connected with the PLC controller near switch, when the described moving described joint of breaking of liquid pipe racks that unloads moves near switch away from described, make described near switch and when breaking distance between the joint and exceeding non-trigger range, describedly be triggered near switch, make described PLC controller spread out of the signal that described pump is stopped.
7. band pump filing provision according to claim 6 is characterized in that: described first the other end of taking over and second the other end of taking over are connected with pipeline with the described liquid pipe that unloads respectively.
8. band pump filing provision according to claim 7, it is characterized in that: described pipeline is provided with bearing, describedly is installed on the described bearing near switch.
9. band pump filing provision according to claim 7, it is characterized in that: described band pump filing provision also comprises Emergeny Cutoff Valves and solenoid valve, described Emergeny Cutoff Valves is located on the described pipeline, and between described pump and breaking device, when being triggered near switch, described PLC controller is closed by the described Emergeny Cutoff Valves of described electromagnetic valve when described.
10. band pump filing provision according to claim 6, it is characterized in that: described container is low-temperature pressure container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087695 CN203131420U (en) | 2013-02-26 | 2013-02-26 | Snap break device and pump filling device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087695 CN203131420U (en) | 2013-02-26 | 2013-02-26 | Snap break device and pump filling device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131420U true CN203131420U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087695 Expired - Fee Related CN203131420U (en) | 2013-02-26 | 2013-02-26 | Snap break device and pump filling device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398085A (en) * | 2018-11-13 | 2019-03-01 | 惠州凯美特气体有限公司 | A method of it prevents that trombone slide accident occurs in groove tank car cargo handling process |
| CN111532448A (en) * | 2020-04-14 | 2020-08-14 | 中国人民解放军空军南京航空四站装备修理厂 | Aviation hydraulic oil pump vehicle with disc pipe frame |
-
2013
- 2013-02-26 CN CN 201320087695 patent/CN203131420U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398085A (en) * | 2018-11-13 | 2019-03-01 | 惠州凯美特气体有限公司 | A method of it prevents that trombone slide accident occurs in groove tank car cargo handling process |
| CN109398085B (en) * | 2018-11-13 | 2021-07-30 | 惠州凯美特气体有限公司 | Method for preventing pipe drawing accident in tank car loading and unloading process |
| CN111532448A (en) * | 2020-04-14 | 2020-08-14 | 中国人民解放军空军南京航空四站装备修理厂 | Aviation hydraulic oil pump vehicle with disc pipe frame |
| CN111532448B (en) * | 2020-04-14 | 2022-07-15 | 中国人民解放军空军南京航空四站装备修理厂 | Aviation hydraulic oil pump truck with coil frame |
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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: 20130814 Termination date: 20190226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |