CN202046240U - Tank semi-trailer used for transporting low-temperature liquid - Google Patents
Tank semi-trailer used for transporting low-temperature liquid Download PDFInfo
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- CN202046240U CN202046240U CN2011201621665U CN201120162166U CN202046240U CN 202046240 U CN202046240 U CN 202046240U CN 2011201621665 U CN2011201621665 U CN 2011201621665U CN 201120162166 U CN201120162166 U CN 201120162166U CN 202046240 U CN202046240 U CN 202046240U
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- Prior art keywords
- way valve
- valve
- temperature liquid
- trailer
- low temperature
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- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 46
- 239000003949 liquefied natural gas Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a tank semi-trailer used for transporting low-temperature liquid. The semi-trailer comprises a tank body and an emergency cut-off device, wherein the emergency cut-off device comprises a plurality of pneumatic valves, at least one first air passage, and at least one first two-position air passage; the pneumatic valves are mounted on a plurality of pipelines respectively; one end of the first air passage is communicated with a brake air reservoir on the tank semi-trailer used for transporting the low-temperature liquid, and the other end of the first air passage is communicated with the pneumatic valves respectively; and the first two-position air passage is mounted on the first air passage. In the tank semi-trailer, the emergency cut-off device adopts pneumatic control to replace traditional manual work, so that the semi-trailer has the advantages that the labor intensity is reduced, most importantly, the pipelines of the tank body can be cut off safely, reliably and promptly when danger occurs, and the increase of danger is effectively prevented. As the brake air reservoir of the semi-trailer serves as the air source of pneumatic control, the structure of the emergency cut-off device is simple and convenient to operate; and remote control also can be realized under the condition that a remote control switch is adopted.
Description
Technical field
The utility model relates to a kind of pot type low temperature liquid transportation semi trailer.
Background technology
The pot type low temperature liquid transportation semi trailer is mainly used in Hazardous Chemical Substances such as transportation LNG (Liquefied Natural Gas, Liquefied Natural Gas (LNG)), ethene.
The keystone configuration of pot type low temperature liquid transportation semi trailer comprises vehicle chassis and is installed in the tank body that is used for carrying liquid on the chassis.Be communicated with some pipelines on the tank body, as gas phase pipeline, liquid phase pipeline, pressurizer pipeline, liquid in-out pipeline etc.At the root of every pipeline, promptly an emergency switching-off valve and a shutoff valve are installed near the tank body position, so that block each pipeline rapidly during danger such as presence of fire, avoid the hazard level increasing.In traditional pot type low temperature liquid transportation semi trailer, usually close shutoff valve with manual direct control or by steel wire cable, though structure is simple relatively, but because command range is very short, when danger takes place, personnel are difficult to close shutoff valve near vehicle, thereby do not have the effect of safety cut-off.
The utility model content
The utility model will overcome the defective of above-mentioned prior art, and a kind of pot type low temperature liquid transportation semi trailer that can cut off the tank body pipeline when dangerous situation takes place safe and reliable and in time is provided.
For achieving the above object, the utility model adopts following technical scheme:
The utility model pot type low temperature liquid transportation semi trailer comprises tank body, is communicated with some pipelines on the described tank body, near described tank body position a shutoff valve is installed on every described pipeline.Wherein, described pot type low temperature liquid transportation semi trailer also comprises emergency cut-off, and described emergency cut-off comprises: several pneumatic valves, at least one the first gas circuits, at least one first two-position three-way valve and at least one are filtered pressure regulating valve.Several pneumatic valves are installed in respectively on described some the pipelines, and between described tank body and described shutoff valve; One end of at least one the first gas circuits all is communicated in the brake air receiver of described pot type low temperature liquid transportation semi trailer, and the other end is communicated in described several pneumatic valves respectively; At least one first two-position three-way valve is installed on described at least one the first gas circuits; At least one filters pressure regulating valve and is installed on described at least one the first gas circuits.
Described emergency cut-off also comprises: at least one filters pressure regulating valve, and it is installed on described at least one the first gas circuits, and between described brake air receiver and described first two-position three-way valve.
The quantity of described first gas circuit is one, and the quantity of described first two-position three-way valve is one, and described emergency cut-off also comprises: one second two-position three-way valve, and it is installed on described first gas circuit, and contiguous described pneumatic valve; At least one the second gas circuits, the one end all is communicated in the air inlet side of described second two-position three-way valve of described first gas circuit, and the other end is communicated in the pneumatic valve of each pipeline respectively; And at least one the 3rd two-position three-way valve, be installed in respectively on described at least one second gas circuit.
Described emergency cut-off also comprises: a filtration pressure regulating valve, and it is installed on described first gas circuit, and between described brake air receiver and described first two-position three-way valve.
The master cock of described first two-position three-way valve is a remote control switch.
The master cock of described second two-position three-way valve and the 3rd two-position three-way valve is remote control switch.
As shown from the above technical solution, the advantage and the good effect of pot type low temperature liquid transportation semi trailer of the present utility model are: in the utility model, the emergency switching-off valve of emergency cut-off is a pneumatic valve, and between the brake air receiver of pneumatic valve and superimposed trailer, be communicated with gas circuit, first two-position three-way valve is installed on the gas circuit, thereby formed the emergency cut-off of air operated control, replaced traditional hand labor, this has not only reduced labour intensity, main is can close pneumatic valve when causing danger safe and reliable and in time, thereby cut off the tank body pipeline, prevent that effectively hazard level from strengthening.The utility model has utilized the source of the gas of the brake air receiver of superimposed trailer as air operated control itself simultaneously, thereby makes emergency cut-off simple in structure, is convenient to operation; And can also realize Long-distance Control selecting for use under the remote control switch situation.
With reference to the accompanying drawing description of a preferred embodiment, above-mentioned and other purpose of the present utility model, feature and advantage will be more obvious by following.
Description of drawings
Fig. 1 is the structural representation of the utility model pot type low temperature liquid transportation semi trailer.
The specific embodiment
As shown in Figure 1, pot type low temperature liquid transportation semi trailer 20 of the present utility model, keystone configuration comprise vehicle chassis, are installed in the tank body 1 and the emergency cut-off that are used for carrying liquid on the chassis.Three pipelines that are communicated on the tank body 1 have been shown: liquid in-out pipeline 11, liquid phase pipeline 12, gas phase pipeline 13 among Fig. 1.Certainly the pipeline that is communicated on the tank body 1 is not limited to above-mentioned three, can suitably increase and decrease according to the practical structures needs.Near tank body 1 position a shutoff valve 2 is installed on every pipeline.
Wherein the emergency cut-off among the embodiment comprises: three first gas circuits 4, one end of these three first gas circuits 4 all is communicated in the brake air receiver 5 of pot type low temperature liquid transportation semi trailer, and the other end is communicated in the pneumatic valve 3 of liquid in-out pipeline 11, the pneumatic valve 3 of liquid phase pipeline 12 and the pneumatic valve 3 of gas phase pipeline 13 respectively.A filtration pressure regulating valve 6 and one first two-position three-way valve 7 are installed on every first gas circuit 4, and filter pressure regulating valve 6 between the brake air receiver 5 and first two-position three-way valve 7.Also be communicated with at the pot type low temperature liquid transportation semi trailer under the situation of other pipelines, can correspondingly independently control the control system that pneumatic valve opens and closes for its configuration one cover.
Filter pressure regulating valve 6, can adopt existing structure, it can fully filter air on the one hand; On the other hand, it will be from the pressure control of the gas of brake air receiver 5 to the optimum start-up scope of pneumatic valve 3, thereby makes atmospheric pressure value in first gas circuit in driving the only interval that pneumatic valve 3 opens.Be not provided with under the situation of filtering pressure regulating valve 6, bigger from the pressure of the gas of brake air receiver 5, might be impacted the service life of pneumatic valve 3, it is no problem using in a short time certainly.
Generally, shutoff valve 2 is closed, and does not have gas in the pneumatic head of pneumatic valve 3, and pneumatic valve 3 is in closed condition; When filling, open earlier when unloading liquid shutoff valve 2, the shift knob of first two-position three-way valve 7 is the state of upspringing, connect first gas circuit 4 this moment, the compressed gas of brake in the air receiver 5 is after filtration after pressure regulating valve 6 pressure regulation, arrive pneumatic valve 3 and make its pneumatic head inflation, thereby open pneumatic valve 3, can fill, unload liquid this moment.After filling, unload liquid and finishing, close shutoff valve 2, the shift knob of pressing first two-position three-way valve 7 blocks the gas in first gas circuit 4, thereby makes pneumatic valve 3 venting, and then pneumatic valve 3 cuts out.If in the process of filling, unloading liquid emergency situation takes place, can close by the shift knob control pneumatic valve 3 of pressing first two-position three-way valve 7 on first gas circuit 4, with the communication paths of gas-liquid in the cut-out tank body, avoid revealing, thereby cut off dangerous source with external environment condition.
When closing, also exit with the brake gas circuit that brake air receiver 5 links to each other when pneumatic valve 3 venting, thus brake air receiver 5 pressure decays, when being lower than certain air pressure, thereby superimposed trailer energy automatic brake reaches the purpose of braking during standstill, and vehicle can not move.
In this embodiment, all be communicated with one first gas circuit 4 with brake between the air receiver 5 at the pneumatic valve on every pipeline 3, and all install on every first gas circuit 4 and filter the pressure regulating valve 6 and first two-position three-way valve 7, overlap independently control system thereby formed three, the keying of three pneumatic valves 3 of independent respectively control.The benefit of this example structure is, each overlaps control system and independently controls separately, does not disturb mutually, and defective is that cost can be than higher.
In a further embodiment, the quantity of described first gas circuit 4 only is one, and the one end is communicated in brake air receiver 5, and the other end is communicated in the pneumatic valve 3 of liquid in-out pipeline 11.The quantity of filtering the pressure regulating valve 6 and first two-position three-way valve 7 is one, is installed on first gas circuit 4.One second two-position three-way valve 8 also is installed on this first gas circuit 4, and these second two-position three-way valve, 8 contiguous pneumatic valves 3.Emergency cut-off among this embodiment also comprises two second gas circuits 9.Article two, an end of second gas circuit 9 all is communicated in the air inlet side of second two-position three-way valve 8 of first gas circuit 4, the other end is communicated in the pneumatic valve 3 of liquid phase pipeline 12 and the pneumatic valve 3 of gas phase pipeline 13 respectively, and one the 3rd two-position three-way valve 10 is installed on every second gas circuit 9.Like this, formed relation in parallel between one second two-position three-way valve 8, two the 3rd two-position three-way valve 10 these three two-position three-way valves, and these three two-position three-way valves form series relationship with first two-position three-way valve 7 respectively.Therefore, when emergency situation takes place, can optionally cut off the pipeline that needs cut off by controlling second two-position three-way valve 8 or certain the 3rd two-position three-way valve 10 according to actual conditions; Simultaneously also can cut off all pipelines by controlling first two-position three-way valve 7.Second gas circuit 9 is not limited to two, can increase adaptively according to the pipeline quantity that tank body is communicated with.
In this embodiment, have many second gas circuits 9 that are set up in parallel, thereby whole emergency cut-off can a shared filtration pressure regulating valve 6, therefore can cost-cutting, particularly under the more situation of tank body pipeline, this advantage is more outstanding; Simultaneously, among this embodiment, can realize that a certain pipeline cuts off control separately, can realize that also all pipelines cut off control simultaneously, for the user provides more alternative, and when all pipelines cut off simultaneously, the shift knob that only need press 7 one valves of first two-position three-way valve got final product, and operation is very easy.
In the utility model, the master cock of first two-position three-way valve 7, second two-position three-way valve 8 and the 3rd two-position three-way valve 10 all can be selected remote control switch for use, thereby but when meeting emergency situation the remote operation shift knob close pneumatic valve 3.The remote control switch button can be installed in positions such as superimposed trailer traveling gear, operator's compartment, so that operation.
The source of the gas that the utility model utilizes the gas in superimposed trailer self the brake air receiver to open and close as control pneumatic valve 3, simplified the structure of emergency cut-off, and realized remote operation easily, can when causing danger, cut off the tank body pipeline in time, prevented that effectively hazard level from strengthening.
Though described the utility model with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from utility model because the utility model can specifically be implemented in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (6)
1. pot type low temperature liquid transportation semi trailer, comprise tank body (1), described tank body is communicated with some pipelines on (1), near described tank body (1) position a shutoff valve (2) is installed on every described pipeline, it is characterized in that, described pot type low temperature liquid transportation semi trailer also comprises emergency cut-off, and described emergency cut-off comprises:
Several pneumatic valves (3) are installed in respectively on described some the pipelines, and are positioned between described tank body (1) and the described shutoff valve (2);
At least one the first gas circuits (4), the one end all is communicated in the brake air receiver (5) of described pot type low temperature liquid transportation semi trailer, and the other end is communicated in described several pneumatic valves (3) respectively;
At least one first two-position three-way valve (7) is installed on described at least one the first gas circuits (4).
2. pot type low temperature liquid transportation semi trailer as claimed in claim 1 is characterized in that, described emergency cut-off also comprises:
At least one filters pressure regulating valve (6), is installed on described at least one the first gas circuits (4), and is positioned between described brake air receiver (5) and described first two-position three-way valve (7).
3. pot type low temperature liquid transportation semi trailer as claimed in claim 1 is characterized in that, the quantity of described first gas circuit (4) is one, and the quantity of described first two-position three-way valve (7) is one, and described emergency cut-off also comprises:
One second two-position three-way valve (8) is installed on described first gas circuit (4), and contiguous described pneumatic valve (3);
At least one the second gas circuits (9), the one end all is communicated in the air inlet side of described second two-position three-way valve (8) of described first gas circuit (4), and the other end is communicated in the pneumatic valve (3) of each pipeline respectively;
At least one the 3rd two-position three-way valve (10) is installed in respectively on described at least one second gas circuit (9).
4. pot type low temperature liquid transportation semi trailer as claimed in claim 3 is characterized in that, described emergency cut-off also comprises:
A filtration pressure regulating valve (6) is installed on described first gas circuit (4), and is positioned between described brake air receiver (5) and described first two-position three-way valve (7).
5. as each described pot type low temperature liquid transportation semi trailer of claim 1-4, it is characterized in that the master cock of described first two-position three-way valve (7) is a remote control switch.
6. as claim 3 or 4 described pot type low temperature liquid transportation semi trailers, it is characterized in that the master cock of described second two-position three-way valve (8) and the 3rd two-position three-way valve (10) is remote control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621665U CN202046240U (en) | 2011-05-19 | 2011-05-19 | Tank semi-trailer used for transporting low-temperature liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621665U CN202046240U (en) | 2011-05-19 | 2011-05-19 | Tank semi-trailer used for transporting low-temperature liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202046240U true CN202046240U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201621665U Expired - Fee Related CN202046240U (en) | 2011-05-19 | 2011-05-19 | Tank semi-trailer used for transporting low-temperature liquid |
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| Country | Link |
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| CN (1) | CN202046240U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795147A (en) * | 2012-08-26 | 2012-11-28 | 新兴重工集团有限公司 | Transport and refueling truck for mining area |
| CN105384134A (en) * | 2015-11-27 | 2016-03-09 | 中国重汽集团柳州运力专用汽车有限公司 | Automatic full load valve closing system for liquid storage and transportation tank |
| CN105423120A (en) * | 2014-09-22 | 2016-03-23 | 石家庄安瑞科气体机械有限公司 | Long tube trailer and emergency cut-off device thereof |
| CN105650331A (en) * | 2014-11-10 | 2016-06-08 | 张家港中集圣达因低温装备有限公司 | Vehicle and valve emergency cut-off system thereof |
| CN105644415A (en) * | 2015-12-31 | 2016-06-08 | 苏州曹搞搞汽车厢体有限公司 | Safety automotive compartment for transportation of flammable liquid |
-
2011
- 2011-05-19 CN CN2011201621665U patent/CN202046240U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795147A (en) * | 2012-08-26 | 2012-11-28 | 新兴重工集团有限公司 | Transport and refueling truck for mining area |
| CN105423120A (en) * | 2014-09-22 | 2016-03-23 | 石家庄安瑞科气体机械有限公司 | Long tube trailer and emergency cut-off device thereof |
| CN105423120B (en) * | 2014-09-22 | 2019-04-19 | 石家庄安瑞科气体机械有限公司 | A kind of long-tube trailer and its emergency shutoff device |
| CN105650331A (en) * | 2014-11-10 | 2016-06-08 | 张家港中集圣达因低温装备有限公司 | Vehicle and valve emergency cut-off system thereof |
| CN105384134A (en) * | 2015-11-27 | 2016-03-09 | 中国重汽集团柳州运力专用汽车有限公司 | Automatic full load valve closing system for liquid storage and transportation tank |
| CN105644415A (en) * | 2015-12-31 | 2016-06-08 | 苏州曹搞搞汽车厢体有限公司 | Safety automotive compartment for transportation of flammable liquid |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20200519 |