CN201521786U - Limited filling device and low-temperature container with same - Google Patents
Limited filling device and low-temperature container with same Download PDFInfo
- Publication number
- CN201521786U CN201521786U CN 200920108011 CN200920108011U CN201521786U CN 201521786 U CN201521786 U CN 201521786U CN 200920108011 CN200920108011 CN 200920108011 CN 200920108011 U CN200920108011 U CN 200920108011U CN 201521786 U CN201521786 U CN 201521786U
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- China
- Prior art keywords
- low
- temperature
- limiting
- charging device
- valve 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 239000012530 fluid Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005429 filling process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003949 liquefied natural gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000004078 cryogenic material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Abstract
The utility model discloses a limited filling device and a low-temperature container with the same. The limited filling device comprises a valve, a stop piece, a float and a connecting piece, wherein the valve is provided with a sealed inner chamber and a liquid inlet formed on the valve and a liquid outlet formed on the top wall of the valve; the liquid inlet is connected with a liquid inlet pipe and the liquid outlet is connected with the interior of the low-temperature container; the stop piece is positioned in the inner chamber of the valve and has preset weight; and the connecting piece passes through the liquid outlet and is fixedly connected with the stop piece and the float, and the inner diameter of the liquid outlet is greater than the preset diameter of the connecting piece. By adopting the utility model, the container can be filled without discharging the medium in the container, thereby realizing damage-free filling, avoiding resource waste, reducing cost, and facilitating environmental protection.
Description
Technical field
The utility model relates to low-temperature (low temperature) vessel, particularly relates to a kind of limit the quantity of charging device and low-temperature (low temperature) vessel with it that is used for low-temperature (low temperature) vessel.
Background technique
Cryogenic media as liquid oxygen, liquid nitrogen, liquid argon, LNG Liquefied natural gas (LNG) etc. is industrial raw material commonly used.Their operating temperature is lower, and is stored in the low-temperature (low temperature) vessel with liquid form usually.For example, the operating temperature of liquid nitrogen is usually about-196 ℃.Charge into from the source of filling the process of container at the cryogenic media that will liquefy, medium is vaporization constantly, causes container inner pressure to raise.This can make in the container and fill pressure reduction between the source and reduce even disappear, cause filling and can not proceed.In addition, container inner pressure is too high also can form potential safety hazard.
Therefore, general now employing emission type fills.As shown in Figure 1, be typically provided with liquid inlet pipe 2, outlet pipe 3 on the existing low-temperature (low temperature) vessel 1.In filling process, one side utilizes that liquid inlet pipe 2 fills, one side utilizes outlet pipe 3 to drain steam reducing container inner pressure, thereby keeps in the container and fill stable pressure reduction between the source.Yet, utilizing this method, a part of medium can emit with the form of steam.
In fact, be stored in normally vapor liquid equilibrium state of the interior cryogenic media of low-temperature (low temperature) vessel.Therefore, when filling, need control the fullness rate of liquid in container.In the prior art, on container 1, be provided with one usually and survey full packages 4.In filling process, survey full packages 4 and open, when wherein having liquid to flow out, show that container has reached the fullness rate of design.At this moment, need manually close the valve of each pipe on the valve in the source of filling and the container, fill stopping.Yet, utilizing this method, a part of medium can be discharged with the form of liquid.
Cryogenic media is through complicated manufacturing process and spend a large amount of additional source of energy and expense obtains.In existing container topping up mode, can be wasted inevitably from outlet pipe 3 and the medium of surveying full packages 4 discharges, this not only easy befouling environment also can cause the wasting of resources, can form potential safety hazard if deal with improperly in addition also.Waste how to avoid the filling process medium is a problem that urgency is to be solved.
In addition, existing topping up mode needs the staff to focus one's attention on, and in time opens and closes the valve of respective line.For example, if forgetting to open when filling surveys full valve 4, may cause the liquid in the container to surpass safe liquid level, thereby cause danger such as building the pressure, explode jar.
The model utility content
The technical problems to be solved in the utility model is, a kind of charging device of limiting the quantity of that is used for low-temperature (low temperature) vessel is provided, to stop the work that fills in low-temperature (low temperature) vessel after being filled into settable volume at cryogenic media automatically.
Another technical problem to be solved in the utility model is, a kind of low-temperature (low temperature) vessel is provided, to avoid the medium waste in the filling process.
For achieving the above object, the utility model provides a kind of charging device of limiting the quantity of that is used for low-temperature (low temperature) vessel, and this low-temperature (low temperature) vessel is provided with the liquid inlet pipe that is used to fill cryogenic media.The described charging device of limiting the quantity of is arranged in the low-temperature (low temperature) vessel and with this liquid inlet pipe and links to each other.This charging device of limiting the quantity of comprises: valve body, and have the inner chamber of a sealing and be arranged on the liquid entering hole on the valve body and be arranged on liquid outlet on the valve body roof, wherein this liquid entering hole is connected with this liquid inlet pipe, and this liquid outlet is connected with the inside of this low-temperature (low temperature) vessel; The fluid stopping part is arranged in this body cavity and has predetermined weight, is used to seal the liquid outlet of this valve body; Float is positioned at outside this valve body, also can moves up and down with the height of this low-temperature (low temperature) vessel cryogenic media liquid level; And link, pass the liquid outlet of this valve body and fixedly connected this fluid stopping part and this float, wherein, the internal diameter of this liquid outlet is greater than diameter one preliminary dimension of this link.
Preferably, the described charging device of limiting the quantity of also comprises the liquid outlet that is arranged on this valve body and the spoiler between this float, and wherein this spoiler is provided with the through hole that passes for this link, and the internal diameter of this through hole is suitable with the diameter of this link.
Preferably, this spoiler is the curve form that protrudes towards the float direction.
Preferably, this spoiler is the spherical crown shape.
Preferably, this spoiler is with respect to the fixed-site of this valve body liquid outlet.
Preferably, this spoiler is fixed to this liquid inlet pipe.
Preferably, also comprise the one or more fixed connecting pieces that are fixedly connected between this valve body and this low-temperature (low temperature) vessel inwall.
Preferably, this spoiler is fixed on this fixed connecting piece.
Preferably, the internal surface of this valve body roof is set to the concave surface that the appearance profile with this fluid stopping part is complementary.
Preferably, this fluid stopping part is a spheroid form.
Preferably, this liquid entering hole is arranged on the sidewall of this valve body.
For achieving the above object, the utility model also provides a kind of low-temperature (low temperature) vessel of storing cryogenic media, which is provided with the liquid inlet pipe that is used to fill this cryogenic media.In this low-temperature (low temperature) vessel, also be provided with the aforesaid charging device of limiting the quantity of.Wherein, when the cryogenic media in this low-temperature (low temperature) vessel arrived the appointment liquid level, this float come-up also made this fluid stopping part seal the liquid outlet of this valve body.
Preferably, the described charging device of limiting the quantity of is positioned at the position near this low-temperature (low temperature) vessel top.
Utilize the utility model, can be in need not discharging container container be filled under the situation of medium, thereby realized harmless filling, avoided the wasting of resources, reduced cost, help environmental protection simultaneously.By calculating the mounting point of the charging device of determining to limit the quantity of, can control the amount of liquid that charges into low-temperature (low temperature) vessel exactly, thereby stopped may exist in the prior art overcharge phenomenon and overvoltage danger (as fried jar).When low-temperature (low temperature) vessel of the present utility model is filled medium, the valve that can need not to open discharge pipe and survey full packages; Even can need not on container, to be provided with discharge pipe of the prior art and/or survey full packages.Limit filling device of the present utility model can the actual demand specific design, thereby can satisfy the different filling rate requirement of client.In addition, limit filling device structure of the present utility model is small and exquisite, thereby can the carrying volume of container not impacted basically.
Below in conjunction with accompanying drawing and detailed mode of execution the utility model is elaborated.
Description of drawings
Fig. 1 is the structural representation of existing low-temperature (low temperature) vessel;
Fig. 2 is according to the structural representation that is provided with the low-temperature (low temperature) vessel of the charging device of limiting the quantity of of the present utility model;
Fig. 3 is the structural drawing of the charging device of limiting the quantity of among Fig. 2, and wherein liquid outlet is in open mode; And
Fig. 4 is and the similar view of Fig. 3 that wherein liquid outlet is in closed state.
Embodiment
Fig. 2 shows according to low-temperature (low temperature) vessel 10 of the present utility model, and container is provided with the liquid inlet pipe 12 that is used for filling to the inner chamber 11 of container 10 cryogenic media.In container 10, also be provided with the charging device 20 of limiting the quantity of that links to each other with liquid inlet pipe 12.
As shown in Figure 3, Figure 4, the charging device 20 of limiting the quantity of comprises a valve body 21.Valve body 21 has the closed inner chamber 214 of the hollow of being surrounded by sidewall 211, roof 212 and diapire 213.On valve body 21, for example on its sidewall 211, be provided with the liquid entering hole 215 that is connected with liquid inlet pipe 12; And on its roof 212, be provided with the liquid outlet 216 that is connected with the inner chamber 11 of container 10, thereby make the body cavity 214 of this sealing be connected with liquid inlet pipe 12 and container intracavity 11 respectively by liquid entering hole 215 and liquid outlet 216.Like this, can only enter body cavity 214 via liquid entering hole 215 earlier from the cryogenic media of liquid inlet pipe 12, and then enter container intracavity 11 via liquid outlet 216.Arrow among Fig. 3 specifically illustrated medium from liquid inlet pipe 12 to container intracavity the flow direction 11.Certainly, liquid entering hole 215 also can be arranged on other position of valve body 21, as is arranged on (not shown) on the roof 212 and the position that liquid outlet 216 departs from mutually.In the inner chamber 214 of valve body, be provided with the fluid stopping part 22 that matches with liquid outlet 216.Be outside equipped with float 23 at valve body.A connection piece 24 passes liquid outlet 216 and fluid stopping part 22 and float 23 is fixedly attached to together.Wherein, the internal diameter of liquid outlet 216 is set to larger than diameter one preliminary dimension of link 24, so that cryogenic media can successfully leave body cavity 214 via liquid outlet 216.Need to prove that owing to draw, the size of link 24 is reduced in Fig. 3 and Fig. 4.Link 24 can be the connecting rod of rigidity, also can be flexible connecting strand.
According to an embodiment of the present utility model, fluid stopping part 22 can be configured to spheroid form.The internal surface of valve body roof 212 can be set to the shape that matches with the appearance profile of fluid stopping part 22, and taper concave surface 217 (see figure 3)s for example are to realize the sealing of 22 pairs of liquid outlets 216 of fluid stopping part better.Certainly, fluid stopping part 22 also can be configured to other suitable and shape, as cylindrical shape, tabular etc.Float 23 can be hollow ball, hollow cylinder or other shape that is fit to.
Since float 23 be positioned at liquid outlet 216 directly over, thereby from liquid outlet 216 ejection cryogenic media can impact to float 23.Impact may cause on the float 23 when the liquid level no show predetermined fluid level in the container 10 and move, and makes and move on the fluid stopping part 22, forms misoperation.In order to address this problem, preferably, a spoiler 25 can be set between liquid outlet 216 and float 23.Spoiler 25 is provided with the through hole that passes for link 24, and the diameter of the internal diameter of this through hole and link 24 is suitable, to reduce to leave the influence of the cryogenic media stream of liquid outlet 216 to float 23 as much as possible.Like this, the overwhelming majority from the cryogenic liquide with very fast flow velocity and elevated pressures of liquid outlet 216 ejection can at first be sprayed onto on the lower surface of spoiler 25, splashes in the container downwards then, thereby can not influence the stability of float 23.Preferably, spoiler 25 can be set to towards or the curve form that protrudes of float 23 directions dorsad, as spherical crown shape or parabolic shape etc.Preferably, spoiler 25 can be fixed on the liquid inlet pipe 12 (see figure 3) or directly be fixed on the valve body 21, make itself and liquid outlet 216 keep intended distances.
Preferably, the charging device 20 of limiting the quantity of of the present utility model also comprises one or more fixed connecting pieces 27, one end of fixed connecting piece 27 is fixed to valve body 23 and the other end is fixed to the inwall of low-temperature (low temperature) vessel, for example be welded on the end socket and/or cylindrical shell of inwall, to improve the force-bearing situation between liquid inlet pipe 12 and the valve body 21.According to actual needs, fixed connecting piece 27 can be configured to the structure and the shape of any appropriate.Preferably, fixed connecting piece 27 and liquid inlet pipe 12 are can be with respect to valve body uniform or be symmetrical arranged.Spoiler 25 can further be fixed on the fixed connecting piece 27.Certainly, spoiler 25 also can only be fixed to fixed connecting piece 27.
Preferably, each parts of the charging device 20 of limiting the quantity of as valve body 21, fluid stopping part 22, float 23, link 24, spoiler 25 and/or fixed connecting piece 27 etc., are made by cryogenic materials such as stainless steels.
Next, specify and utilize the charging device 20 of limiting the quantity of of the present utility model to fill the process of cryogenic media to low-temperature (low temperature) vessel 10.
In the beginning of filling process, fluid stopping part 22 is because the effect of gravity is positioned at the bottom of body cavity 214.The liquid cryogenic media that fills in the (not shown) of source at first enters body cavity 214 from liquid inlet pipe 12 and liquid entering hole 215, enters container intracavity 11 via liquid outlet 216 again.Usually, the cryogenic media that fills in the source has than pressure bigger in the container to be filled and lower temperature.Therefore, the medium that has just sprayed from liquid outlet 216 also has lower temperature.Preferably, the charging device 20 of limiting the quantity of is arranged on the position on close container top, thereby can utilizes media cooling of these ejections just to accumulate in the medium steam on container top, even it is liquefied again.Like this, the pressure in the container 10 can effectively be reduced, and need not to utilize outlet pipe that steam is discharged again, and has avoided waste.The shape of spoiler 25 suitably is set, can optimizes from the unrestrained scope of the medium of liquid outlet 216 ejections, better medium steam is cooled off.
Along with the rising of liquid levels in the container 10, float 23 is produced buoyancy to liquid medium and buoyancy increases gradually, moves on together thereby make float 23 drive links 24 and fluid stopping part 22.When the liquid medium in the container arrived predefined appointment liquid level, float 23 floated on just and makes fluid stopping part 22 arrive the top of body cavities 214 and close liquid outlet 216, as shown in Figure 4.At this moment, the medium that enters body cavity 214 from liquid inlet pipe 12 can not enter the inner chamber of container 10 again.Like this, in filling process, need not to utilize and survey the capacity that full packages detects the liquid in container medium, thereby also can not cause the waste of medium.
Usually, the vaporization rate of cryogenic media is very fast.After the liquid outlet 216 of valve body was closed, pressure in liquid inlet pipe 12 and the body cavity 214 can rise rapidly, as can be at 1 second internal pressure, the 2～5bar that raises.And the flow of medium descends rapidly, even is zero.Be arranged on the pressure meter that fills in the pipeline or flowmeter after the unexpected variation that detects this pressure or flow, can send shutoff signal to the filling pump (not shown) that power is provided for the source of filling.Filling pump promptly quits work after receiving this shutoff signal.Like this, just realized stopping automatically of whole filling process.Certainly, also can be by stopping automatically that other signals are realized filling.It should be noted that because the utility model can be realized filling automatically stopping, thereby the source of filling can be arranged on the position away from container to be filled, thereby improve the Security of filling process.
Do not have the over-charge protective device in the container of prior art, fill with higher pressure and be easy to the danger that causes container to overcharge.In addition, the existing mode that fills need be exitted when filling, and surveys the full packages trickle and also need through the regular hour to throttle down from observing, thereby to adopt too high pressure to fill be uneconomic.And the low-temperature (low temperature) vessel of limit filling device of the present utility model can stop to fill operation immediately after arrive specifying liquid level filling, thereby avoided overcharging phenomenon.Thereby container of the present utility model can fill with higher pressure, thereby can realize filling fast.For example, for less than the low-temperature (low temperature) vessel about 2000L, the time of filling is generally 3～20 minutes.
Utilize the utility model, can be in need not discharging container container be filled under the situation of medium, that is, can realize harmless filling.Thereby, when filling medium, can and survey the full packages Close All with the outlet pipe on the container.Even, need not on container, to be provided with outlet pipe and/or survey full packages.
Though should be pointed out that by above-mentioned mode of execution the utility model is described, yet the utility model also can have other numerous embodiments.Under the prerequisite that does not break away from the utility model spirit and scope; those of ordinary skill in the art obviously can make various corresponding changes and distortion to the utility model, but these changes and distortion all should belong in the scope that the utility model claims and equivalent thereof protect.
Claims (13)
1. charging device of limiting the quantity of that is used for low-temperature (low temperature) vessel, this low-temperature (low temperature) vessel is provided with the liquid inlet pipe that is used to fill cryogenic media, it is characterized in that, and the described charging device of limiting the quantity of is arranged in the low-temperature (low temperature) vessel and with this liquid inlet pipe and is connected, and this charging device of limiting the quantity of comprises:
Valve body has the inner chamber of a sealing and is arranged on the liquid entering hole on the valve body and is arranged on liquid outlet on the valve body roof, and wherein this liquid entering hole is connected with this liquid inlet pipe, and this liquid outlet is connected with the inside of this low-temperature (low temperature) vessel;
The fluid stopping part is arranged in this body cavity and has predetermined weight, is used to seal the liquid outlet of this valve body;
Float is positioned at outside this valve body, also can moves up and down with the height of this low-temperature (low temperature) vessel cryogenic media liquid level; And
Link passes the liquid outlet of this valve body and fixedly connected this fluid stopping part and this float, and wherein, the internal diameter of this liquid outlet is greater than diameter one preliminary dimension of this link.
2. the charging device of limiting the quantity of according to claim 1, it is characterized in that, also comprise the liquid outlet that is arranged on this valve body and the spoiler between this float, wherein this spoiler is provided with the through hole that passes for this link, and the internal diameter of this through hole is suitable with the diameter of this link.
3. the charging device of limiting the quantity of according to claim 2 is characterized in that, this spoiler be towards or the curve form that protrudes of float direction dorsad.
4. the charging device of limiting the quantity of according to claim 3 is characterized in that, this spoiler is the spherical crown shape.
5. the charging device of limiting the quantity of according to claim 2 is characterized in that this spoiler is with respect to the fixed-site of this valve body liquid outlet.
6. the charging device of limiting the quantity of according to claim 5 is characterized in that this spoiler is fixed to this liquid inlet pipe.
7. the charging device of limiting the quantity of according to claim 2 is characterized in that, also comprises the one or more fixed connecting pieces that are fixedly connected between this valve body and this low-temperature (low temperature) vessel inwall.
8. the charging device of limiting the quantity of according to claim 7 is characterized in that this spoiler is fixed on this fixed connecting piece.
9. the charging device of limiting the quantity of according to claim 1 is characterized in that, the internal surface of this valve body roof is configured to the concave surface that the appearance profile with this fluid stopping part is complementary.
10. the charging device of limiting the quantity of according to claim 9 is characterized in that, this fluid stopping part is a spheroid form.
11. the charging device of limiting the quantity of according to claim 1 is characterized in that this liquid entering hole is arranged on the sidewall of this valve body.
12. low-temperature (low temperature) vessel of storing cryogenic media, which is provided with the liquid inlet pipe that is used to fill this cryogenic media, it is characterized in that, in this low-temperature (low temperature) vessel, also be provided with as each described charging device of limiting the quantity of in the claim 1～11, wherein, when the cryogenic media in this low-temperature (low temperature) vessel arrived the appointment liquid level, this fluid stopping part sealed the liquid outlet of this valve body.
13. low-temperature (low temperature) vessel according to claim 12 is characterized in that, the described charging device of limiting the quantity of is positioned at the position near this low-temperature (low temperature) vessel top.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920108011 CN201521786U (en) | 2009-05-12 | 2009-05-12 | Limited filling device and low-temperature container with same |
| US12/622,580 US8573246B2 (en) | 2009-05-12 | 2009-11-20 | Automatic filling termination device and cryogenic vessel with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920108011 CN201521786U (en) | 2009-05-12 | 2009-05-12 | Limited filling device and low-temperature container with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521786U true CN201521786U (en) | 2010-07-07 |
Family
ID=42507961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920108011 Expired - Lifetime CN201521786U (en) | 2009-05-12 | 2009-05-12 | Limited filling device and low-temperature container with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886738A (en) * | 2009-05-12 | 2010-11-17 | 南通中集罐式储运设备制造有限公司 | Limit-quantity charging device and low-temperature vessel comprising same |
| CN110185919A (en) * | 2018-02-22 | 2019-08-30 | 张家港中集圣达因低温装备有限公司 | Low-temperature storage tank |
-
2009
- 2009-05-12 CN CN 200920108011 patent/CN201521786U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886738A (en) * | 2009-05-12 | 2010-11-17 | 南通中集罐式储运设备制造有限公司 | Limit-quantity charging device and low-temperature vessel comprising same |
| CN110185919A (en) * | 2018-02-22 | 2019-08-30 | 张家港中集圣达因低温装备有限公司 | Low-temperature storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100707 Effective date of abandoning: 20090512 |
|
| RGAV | Abandon patent right to avoid regrant |