CN204854107U - Low temperature fluid refrigerating plant that throttles - Google Patents
Low temperature fluid refrigerating plant that throttles Download PDFInfo
- Publication number
- CN204854107U CN204854107U CN201520434806.1U CN201520434806U CN204854107U CN 204854107 U CN204854107 U CN 204854107U CN 201520434806 U CN201520434806 U CN 201520434806U CN 204854107 U CN204854107 U CN 204854107U
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- throttling
- pipeline
- addendum cone
- refrigeration device
- liquid
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Abstract
The utility model belongs to the technical field of low temperature and refrigeration engineering, specifically, the utility model relates to a low temperature fluid refrigerating plant that throttles. The device is main including gaseous throttle pipeline and liquid throttle pipeline. Pipeline before the choke valve is gas supply pipe and liquid conveying pipe respectively, merges into a pipeline after the choke valve. Two before the choke valve respectively set up a low temperature hand stop valve on the road to the switching of two branch roads of control. The switching of choke valve is through manual adjusting device flow control flow, and the flow area of throttle runner is variable, and its structure is conical screw rod by runner and axially movable's top and constitutes, relative movement change flow area between screw rod and the runner.
Description
Technical field
The utility model belongs to low temperature and Refrigeration Engineering technical field, and particularly, the utility model relates to a kind of cryogen throttling refrigeration device.
Background technology
Along with the continuous progress of science and technology, no matter cryogenic liquid is on ground or all has a wide range of applications demand in space.And along with domestic deep development in space probation in the last few years, such as moon exploration program, the survey of deep space technology etc. in orbital space station and depot and future, load capacity increases gradually, the memory space of cryogenic liquid in space and also greatly increasing service time.Cryogenic liquid is as higher in the specific impulse such as liquid hydrogen, liquid oxygen, environmental friendliness, therefore carrier rocket at home and abroad and Upper Stage is widely used.Although the cryogenic liquid performances such as liquid hydrogen/oxygen are high, its boiling point is very low, easily evaporates in orbit, be thus difficult to long time stored in process owing to being subject to the thermal environment such as radiation, heat conduction.
Safe pressure is kept in order to make Cryogenic tank, avoid it to be destroyed, need the gas evaporated by cryogenic liquid to discharge beyond casing, this not only causes the waste of cryogenic liquid, the gas of discharging also can disturb flight attitude, and this just brings difficulty for the design of long-time cryogenic liquid system in-orbit.Can find out that key problem that cryogenic liquid is applied for a long time is in-orbit the control technology of evaporation capacity thus, finally realize zero evaporation loss.Thermodynamics gas extraction system (TVS) realizes one of technological approaches that cryogenic liquid efficiently stores, it is a kind of method adopting burnt soup expansion throttling, make the two phase flow that formation temperature and pressure reduce after throttling of the fluid in tank, this two phase flow imports the heat exchanger with liquid pool in tank or tank wall UNICOM, tank inner cryogenic propellant is made to produce refrigeration effect by heat exchange, simultaneously tank pressure drop.
Throttling technology be British scientist Joule and Thomson at the Late Cambrian fifties in 19th century, they have studied the phenomenon that temperature when gas expand into environment under low pressure from high pressure reduces.Device based on this flow restriction refrigeration structure can realize the temperature reducing cryogenic liquid or low-temperature steam, thus pneumatic die cushion pressure in reduction tank, reach minimizing to evaporate, reclaiming the object of cold energy, is a kind of method realizing cryogenic propellant reliably, easily and efficiently store.
Utility model content
The purpose of this utility model is, provides a kind of cryogen throttling refrigeration device, the advantage that this refrigeration system has simple, the easy processing of structure and realizes, and can realize cooling cryogenic liquid, reduce the object evaporated.
For achieving the above object, the utility model have employed following technical scheme:
Cryogen throttling refrigeration device of the present utility model, forms primarily of actual internal area adjuster, throttle orifice 9, gas throttling pipeline 10 and liquid throttling pipeline 11;
Described actual internal area adjuster comprises adjustment handle 1, sealing nut 2, valve rod 4, seal valve seat 5, package 6, addendum cone 7 and shaped telescopic tube 14; Wherein, described seal valve seat 5, package 6 and shaped telescopic tube 14 are in turn connected to form cylindrical shell, described valve rod 4 is connected with the afterbody of addendum cone 7 and is placed in cylindrical shell, the conehead of described addendum cone 7 is positioned at shaped telescopic tube 14, and the diameter compatible of the basal diameter of conehead and shaped telescopic tube 14 closes, described shaped telescopic tube 14 lower inner diameter is less than top, with the conehead of fixing addendum cone 7;
Described sealing nut 2 is fixedly connected on seal valve seat 5 outer wall, and described valve rod 4 outer wall is provided with sealed groove 3, and described valve rod 4 to be matched with described seal valve seat 5 by phenyl tetrafluoride pad that sealed groove 3 is arranged or O circle and is tightly connected; Described valve rod 4 dorsad addendum cone 7 one end, through seal valve seat 5 and sealing nut 2, is connected with adjustment handle 1;
Described throttle orifice 9 place pipeline is vertically connected on shaped telescopic tube 14 sidewall, corresponding with the side of the addendum cone 7 be fixed; Described gas throttling pipeline 10 is connected in parallel in throttle orifice 9 place pipeline with liquid throttling pipeline 11;
Described cryogen throttling refrigeration device also comprises fluid discharge pipe 8, is connected to the conehead side of shaped telescopic tube 14 towards addendum cone 7.
According to cryogen throttling refrigeration device of the present utility model, wherein, in cylinder bottom the conehead of described addendum cone 7, the internal diameter of the throttle orifice 9 place pipeline of shaped telescopic tube 14 sidewall described in described cylindrical height is not less than, is connected to.
Addendum cone 7 described in the utility model can move vertically with the rotation of described adjustment handle 1, and and forms variable actual internal area between described shaped telescopic tube 14.
According to cryogen throttling refrigeration device of the present utility model, wherein, described addendum cone 7 afterbody arranges addendum cone connecting rod 15, and addendum cone 7 is connected with valve rod 4 by addendum cone connecting rod 15.Be threaded connection between described valve rod 4 and addendum cone 7.
According to cryogen throttling refrigeration device of the present utility model, wherein, described gas throttling pipeline 10 and liquid throttling pipeline 11 are respectively equipped with gas throttling stop valve 12 and liquid section flow shutoff valve 13, thus the opening and closing of two throttling pipelines (branch road) can be controlled respectively.Described gas throttling stop valve 12 and liquid section flow shutoff valve 13, when one of them is opened, another is in closed condition.
According to cryogen throttling refrigeration device of the present utility model, wherein, as preferably, one of described gas throttling pipeline 10 or liquid throttling pipeline 11 are near throttle orifice 9, and another throttle pipe great distance is from throttle orifice 9.Article two, throttling pipeline merges into a pipeline before throttle orifice 9.
According to cryogen throttling refrigeration device of the present utility model, wherein, as preferably, described adjustment handle 1 with between valve rod 4 for being fixedly connected with, for being fixedly connected with between described seal valve seat 5 with described package 6, described sealing nut 2 is threaded connection in seal valve seat 5 outer wall.
Working media in the utility model is research object flow media used, for preventing the fluids such as extraneous air from entering this device, need arrange sealing device.Therefore, preferably, sealed by phenyl tetrafluoride pad between described sealing nut 2 and valve rod 4.
During utility model works, open the stop valve of one of gas throttling pipeline 10 or liquid throttling pipeline 11, and make the stop valve of another throttling pipeline be in closed condition.The biphase gas and liquid flow that fluid is all reduced by mineralization pressure after throttle orifice and temperature, rotate and regulate handle, addendum cone moves vertically, thus changes the actual internal area between the conical surface and shaped telescopic tube, with the uninterrupted of this alter, and then affect the refrigerating capacity after throttling.Fluid after throttling, by the ring section between the conical surface and shaped telescopic tube, enters into fluid discharge pipe after shaped telescopic tube, and provides cold for subsequent structural.
The utility model is when practical application works, and gas throttling and liquid throttling can control respectively, and be the adverse effect avoiding the mixing of two kinds of fluids to bring measurement result, gas-liquid two throttling branch roads arrange stop valve respectively with the break-make of controlling brancher.
Operation principle of the present utility model is: the impact of leaking heat owing to being subject to Cryogenic tank outside, gaseous pressure in tank is raised, maintain within certain safe range for making the pressure in tank, open (low temperature) stop valve arbitrary on gas throttling branch road or liquid throttling branch road, and close (low temperature) stop valve of another branch road, make another branch road be in closed condition.Fluid enters cryogenic heat exchanger by forming biphase gas and liquid flow after throttle orifice decompression cooling, exchange heat is carried out with the liquid in Cryogenic tank in cryogenic heat exchanger, cryogenic liquid temperature in tank is reduced and reaches supercooled state, and the biphase gas and liquid flow produced after throttling becomes steam owing to being heated, be discharged to tank outside by steam exhaust pipe road.By reducing the pressure of gas-phase space and the temperature of cryogenic liquid, reach the object reducing cryogenic liquid evaporation capacity.
The utility model major advantage can show following two aspects: first, and the utility model provides two throttling branch roads, need the throttling refrigeration function that can realize gas or liquid respectively, and two branch roads can control its opening and closing respectively and be independent of each other according to difference; Secondly, the flow of throttling refrigeration working medium can be controlled by circulation area adjusting device, thus corresponding refrigerating capacity is provided according to actual needs.
Accompanying drawing explanation
Fig. 1 is cryogen throttling refrigeration device schematic diagram of the present utility model.
Fig. 2 is the Cryogenic liquid storage system schematic diagram of the utility model embodiment.
Reference numeral
1, handle 2, sealing nut 3, sealed groove 4, valve rod is regulated
5, seal valve seat 6, package 7, addendum cone 8, fluid discharge pipe
9, throttle orifice 10, gas throttling pipeline 11, liquid throttling pipeline
12, gas throttling stop valve 13, liquid section flow shutoff valve
14, shaped telescopic tube 15, addendum cone connecting rod 16, gas throttling branch road
17, liquid throttling branch road 18, choke valve 19, cryogenic heat exchanger
20, vapour-discharge tube road 21, cold screen
Detailed description of the invention
Below in conjunction with accompanying drawing, device of the present utility model is described further.
As shown in Figure 1, cryogen throttling refrigeration device of the present utility model, forms primarily of actual internal area adjuster, throttle orifice 9, gas throttling pipeline 10 and liquid throttling pipeline 11; Described actual internal area adjuster comprises adjustment handle 1, sealing nut 2, valve rod 4, seal valve seat 5, package 6, addendum cone 7 and shaped telescopic tube 14; Wherein, described seal valve seat 5, package 6 and shaped telescopic tube 14 are in turn connected to form cylindrical shell, described valve rod 4 is connected with the afterbody of addendum cone 7 and is placed in cylindrical shell, the conehead of described addendum cone 7 is positioned at shaped telescopic tube 14, and the diameter compatible of the basal diameter of conehead and shaped telescopic tube 14 closes, described shaped telescopic tube 14 lower inner diameter is less than top, with the conehead of fixing addendum cone 7; Described sealing nut 2 is fixedly connected on seal valve seat 5 outer wall, and described valve rod 4 outer wall is provided with sealed groove 3, and described valve rod 4 to be matched with described seal valve seat 5 by phenyl tetrafluoride pad that sealed groove 3 is arranged or O circle and is tightly connected; Described valve rod 4 dorsad addendum cone 7 one end, through seal valve seat 5 and sealing nut 2, is connected with adjustment handle 1; Described throttle orifice 9 place pipeline is vertically connected on shaped telescopic tube 14 sidewall, corresponding with the side of the addendum cone 7 be fixed; Described gas throttling pipeline 10 is connected in parallel in throttle orifice 9 place pipeline with liquid throttling pipeline 11; Described cryogen throttling refrigeration device also comprises fluid discharge pipe 8, is connected to the conehead side of shaped telescopic tube 14 towards addendum cone 7.
According to cryogen throttling refrigeration device of the present utility model, wherein, in cylinder bottom the conehead of described addendum cone 7, the internal diameter of the throttle orifice 9 place pipeline of shaped telescopic tube 14 sidewall described in described cylindrical height is not less than, is connected to.Addendum cone 7 described in the utility model can move vertically with the rotation of described adjustment handle 1, and and forms variable actual internal area between described shaped telescopic tube 14.Described addendum cone 7 afterbody arranges addendum cone connecting rod 15, connects 15 be connected with valve rod 4 by addendum cone.Be threaded connection between described valve rod 4 and addendum cone 7.Described gas throttling pipeline 10 and liquid throttling pipeline 11 are respectively equipped with gas throttling stop valve 12 and liquid section flow shutoff valve 13, thus the opening and closing of two throttling pipelines (branch road) can be controlled respectively.Described gas throttling stop valve 12 and liquid section flow shutoff valve 13, when one of them is opened, another is in closed condition.One of described gas throttling pipeline 10 or liquid throttling pipeline 11 are near throttle orifice 9, and another throttle pipe great distance is from throttle orifice 9.Article two, throttling pipeline merges into a pipeline before throttle orifice 9.
Described adjustment handle 1 with between valve rod 4 for being fixedly connected with, for being fixedly connected with between described seal valve seat 5 with described package 6, described sealing nut 2 is threaded connection in seal valve seat 5 outer wall.Sealed by phenyl tetrafluoride pad between described sealing nut 2 and valve rod 4.
Embodiment 1
As shown in Figure 2, cryogen throttling refrigeration device embody rule of the present utility model can be a kind of Cryogenic liquid storage system based on the utility model cryogen throttling refrigeration device, described Cryogenic liquid storage system comprises cryogenic liquid container, also comprises the above-mentioned cryogen throttling refrigeration device of the utility model of being positioned at cryogenic liquid container inside, gas throttling branch road 16, liquid throttling branch road 17, cryogenic heat exchanger 19 and vapour-discharge tube road 20; Described gas throttling branch road 16 is connected with gas throttling pipeline 10, described liquid throttling branch road 17 is connected with liquid throttling pipeline 11, described fluid discharge pipe 8 is connected to the entrance of cryogenic heat exchanger 19, and described vapour-discharge tube road 20 is connected to the inlet port of cryogenic heat exchanger 19; It is outside that low tempertaure storage case is stretched out on described vapour-discharge tube road 20.
In Cryogenic liquid storage system described in the utility model, it also comprises the layering of some cold screens 21 and is arranged at cryogenic liquid container inner top gas-phase space.Cold screen is made up of several layers of copper coin, effectively can reduce the radiation heat transfer of tank top flange to cryogenic liquid.
According to Cryogenic liquid storage system of the present utility model, wherein, handle 1, the valve switch of gas throttling stop valve 12 and the valve switch of liquid section flow shutoff valve 13 is regulated all to be arranged at low tempertaure storage case outside.The mouth of pipe of described gas throttling branch road 16 is arranged in the gas phase of cryogenic liquid container, and the mouth of pipe of described liquid throttling branch road 17 is arranged in the liquid phase of cryogenic liquid container.
In the present embodiment, article two, the low-temp. stop valve on the conveyance conduit of cryogen is all positioned at the gas-phase space of Cryogenic tank, for convenience of carrying out open to shut to regulate to it, manual regulating device can be positioned over tank outside, and be connected with low-temp. stop valve by low thermal conductivity material.
Throttling element in the present embodiment is positioned at the gas-phase space of Cryogenic tank, for convenience of regulating the circulation area of runner, be provided with the screw rod that top is taper, screw rod can move vertically, change throttling circulation area by changing the ring section formed between the conical surface and shaped telescopic tube, thus play the effect regulating fluid flow.The manual regulating device of screw rod is arranged at Cryogenic tank outside, and is connected by low thermal conductivity material.
Cryogenic heat exchanger material in the present embodiment be copper that thermal conductivity is high to reduce heat exchange thermal resistance, heat exchanger entrance exports with choke valve and is connected, and heat exchanger exit is connected with venting conduit inlet.
The utility model does not elaborate part and belongs to techniques well known.
Certainly; the utility model can also have various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art can openly make various corresponding change and distortion according to of the present utility model, but these change accordingly and are out of shape the protection domain that all should belong to claim of the present utility model.
Claims (9)
1. a cryogen throttling refrigeration device, is characterized in that, described device forms primarily of actual internal area adjuster, throttle orifice (9), gas throttling pipeline (10) and liquid throttling pipeline (11);
Described actual internal area adjuster comprises adjustment handle (1), sealing nut (2), valve rod (4), seal valve seat (5), package (6), addendum cone (7) and shaped telescopic tube (14); Wherein, described seal valve seat (5), package (6) and shaped telescopic tube (14) are in turn connected to form cylindrical shell, described valve rod (4) is connected with the afterbody of addendum cone (7) and is placed in cylindrical shell, the conehead of described addendum cone (7) is positioned at shaped telescopic tube (14), and the diameter compatible of the basal diameter of conehead and shaped telescopic tube (14) closes, described shaped telescopic tube (14) lower inner diameter is less than top, with the conehead of fixing addendum cone (7);
Described sealing nut (2) is fixedly connected on seal valve seat (5) outer wall, described valve rod (4) outer wall is provided with sealed groove (3), and described valve rod (4) to be matched with described seal valve seat (5) by the upper phenyl tetrafluoride pad that arranges of sealed groove (3) or O circle and is tightly connected; Described valve rod (4) dorsad addendum cone (7) one end, through seal valve seat (5) and sealing nut (2), is connected with adjustment handle (1);
Described throttle orifice (9) place pipeline is vertically connected on shaped telescopic tube (14) sidewall, corresponding with the side of the addendum cone be fixed (7); Described gas throttling pipeline (10) and liquid throttling pipeline (11) are connected in parallel in throttle orifice (9) place pipeline;
Described cryogen throttling refrigeration device also comprises fluid discharge pipe (8), is connected to the conehead side of shaped telescopic tube (14) towards addendum cone (7).
2. cryogen throttling refrigeration device according to claim 1, it is characterized in that, in cylinder bottom the conehead of described addendum cone (7), described in described cylindrical height is not less than, be connected to the internal diameter of throttle orifice (9) the place pipeline of shaped telescopic tube (14) sidewall.
3. cryogen throttling refrigeration device according to claim 1, it is characterized in that, described addendum cone (7) afterbody arranges addendum cone connecting rod (15), and addendum cone (7) is connected with valve rod (4) by addendum cone connecting rod (15).
4. the cryogen throttling refrigeration device according to claim 1 or 3, is characterized in that, is threaded connection between described valve rod (4) and addendum cone (7).
5. cryogen throttling refrigeration device according to claim 1, it is characterized in that, described gas throttling pipeline (10) and liquid throttling pipeline (11) are respectively equipped with gas throttling stop valve (12) and liquid section flow shutoff valve (13).
6. cryogen throttling refrigeration device according to claim 1, it is characterized in that, one of described gas throttling pipeline (10) or liquid throttling pipeline (11) are near throttle orifice (9), and another throttle pipe great distance is from throttle orifice (9).
7. cryogen throttling refrigeration device according to claim 1, it is characterized in that, described adjustment handle (1) with between valve rod (4) for being fixedly connected with, for being fixedly connected with between described seal valve seat (5) with described package (6).
8. the cryogen throttling refrigeration device according to claim 1 or 7, is characterized in that, described sealing nut (2) is threaded connection in seal valve seat (5) outer wall.
9. cryogen throttling refrigeration device according to claim 1, is characterized in that, is sealed between described sealing nut (2) and valve rod (4) by phenyl tetrafluoride pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434806.1U CN204854107U (en) | 2015-06-23 | 2015-06-23 | Low temperature fluid refrigerating plant that throttles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434806.1U CN204854107U (en) | 2015-06-23 | 2015-06-23 | Low temperature fluid refrigerating plant that throttles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854107U true CN204854107U (en) | 2015-12-09 |
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ID=54744648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434806.1U Withdrawn - After Issue CN204854107U (en) | 2015-06-23 | 2015-06-23 | Low temperature fluid refrigerating plant that throttles |
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| CN (1) | CN204854107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570572A (en) * | 2016-03-02 | 2016-05-11 | 江西浙丰管业有限公司 | Throttling socket and spigot joint type pipe connector |
| CN106322874A (en) * | 2015-06-23 | 2017-01-11 | 总装备部工程设计研究总院 | Cryogenic fluid throttling refrigeration device |
| CN110195995A (en) * | 2019-05-15 | 2019-09-03 | 中国电子科技集团公司第十一研究所 | Self-adjusting mechanism and its assembly method, the self-adjustable J-T refrigerator of refrigerator |
-
2015
- 2015-06-23 CN CN201520434806.1U patent/CN204854107U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322874A (en) * | 2015-06-23 | 2017-01-11 | 总装备部工程设计研究总院 | Cryogenic fluid throttling refrigeration device |
| CN106322874B (en) * | 2015-06-23 | 2019-09-24 | 总装备部工程设计研究总院 | A kind of cryogen throttling refrigeration device |
| CN105570572A (en) * | 2016-03-02 | 2016-05-11 | 江西浙丰管业有限公司 | Throttling socket and spigot joint type pipe connector |
| CN110195995A (en) * | 2019-05-15 | 2019-09-03 | 中国电子科技集团公司第十一研究所 | Self-adjusting mechanism and its assembly method, the self-adjustable J-T refrigerator of refrigerator |
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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 | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20190924 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20190924 |