Device for the storage and supply of cryogenic products

 

(57) Abstract:

The device comprises a heat-insulated inner jacket, outer jacket, drain and gas piping, valves and isolation valves. In the inner membrane capacitance intake is made of an odd number of horizontal pipelines, at least three, located in the Central vertical plane passing through the longitudinal horizontal axis of symmetry of the vessel. The Central cavity of the pipeline knees connected with the cavities of the upper and lower lines on the opposite sides have open beveled ends, the lower edges of which rest on the plane plummet, freely suspended on axes fixed to the inner shell capacity in planes perpendicular to the pipeline intake. To the plane of the Central pipe of the intake docked the drain pipe and the axis of symmetry of the drainage pipe coincides with the axis of symmetry of the vessel. The use of the invention will prevent the liquid phase of the cryogenic product into the cavity of the drainage pipe when stored in containers with open drainage for longitudinal and popie relates to the field of cryogenic engineering and is intended for storage and supply of cryogenic products to consumers, for example, to supply hydrogen and oxygen stored at cryogenic temperatures in an electrochemical generator (ECG) power plant (power plant) on the basis of hydrogen-oxygen fuel cells, intended for installation on submarines.

A device for the storage and supply of liquid hydrogen (see "Questions of deep cooling", a collection of articles edited by M. P. Malkov, M., publishing house of foreign literature, 1961, pages 411) containing a heat-insulated inner sheath, secured in a vacuum-tight outer shell, drain and gas piping, valves and isolation valves.

It is also known a device for the storage and supply of liquid oxygen in the ECG power plant based on hydrogen-oxygen fuel cells, intended for installation on submarines, selected as a prototype (see patent 2094697 F 17 C 13/00).

The device comprises a heat-insulated inner sheath, secured in a vacuum-tight outer shell, drain and gas piping, valves and isolation valves.

The disadvantage of analog and prototype is that they do not prevent the ingress of liquid phase kreim work tanks installed as part of the mentioned EU on a submarine, i.e., drainage evaporating due to heat gains from the environment of the stored cryogenic product through the drain pipe may be extended, for example, up to 45 days. This is due to the fact that the mentioned EU does not work during the whole time of the trip boats, because it is a subsidiary. She can start work immediately after the filling of the containers may, in the middle or at the end of the hike. Steam cushion after refueling for a more complete use of the volumes of the containers usually do not exceed 5 - 10% of total capacity, and therefore, if the mode without drainage storage prior to beginning work EU, during this time, the pressure in the tank will rise to the level of the safety valve (PC), after which the cryogenic product will be periodically grazed through PC. Loss of cryogenic product in this case will be high and difficult to determine in advance. PI in this case to the commencement of work will not have the required energy resource. More economical from the point of view of conservation reserves cryogenic product is mentioned mode open-drain, but due to having a place postojannyh devices periodically will be in the liquid phase of the cryogenic product, and, therefore, this period will be selected liquid. In the selection of the liquid phase of the cryogenic product under the same heat input consumption increases approximately as many times, how much the density of the liquid phase exceeds the density of the vapor phase. For oxygen at a temperature of ~ 90oK, this ratio is ~ 230, and hydrogen at a temperature of 20oK it is ~ 60. Therefore, loss of cryogenic product when stored in containers with open drainage will be very significant that will reduce energy power plant and, therefore, cannot perform the planned work program.

The present invention is to prevent the liquid phase of the cryogenic product into the cavity of the drainage pipe when stored in containers with open drainage.

The invention consists in that in the inner shell of the vessel, a device for the storage and supply of cryogenic products, secured in a vacuum-tight outer shell, containing the drain and gas piping, valves, entered the intake is made of an odd number of horizontal pipelines, at least three, raspolojennyi the Central cavity of the pipeline connected to the cavities of the upper and lower pipelines knees, attached to the inner membrane capacitance, and the upper and lower pipelines from opposite sides have open beveled ends, the drainage pipeline capacity docked to the Central cavity of the pipeline intake, and its axis of symmetry coincides with the vertical axis of symmetry of the vessel, the lower edges of the beveled ends of the upper and lower intake piping run in the plane plummet, freely suspended on axes fixed to the inner shell capacity in planes perpendicular to the pipeline intake, with the plane of the bevelled edges of the open ends of the pipes of the intake is made so that in its lower part, together with the planes plummet form an angle, equal to or less than the minimum pitch angle, with the lower edge of the lower intake pipe is in the plane of maximum filling of the liquid phase of the cryogenic product, and the diameter of the pipeline intake is determined from the expression:

dTr= dothers/(2(tg)0,5)

where dTrthe diameter of each of the three pipeline intake,

dothers- diameter of the drainage pipe,

- minimum pitch angle.

The technical result consists in the fact that sravnenitelno product into the cavity of the drainage pipe when stored in containers with open drainage.

This is achieved by introducing into the inner shell capacity of intake above construction and post it with suitably located drainage pipeline. In the absence of pitching both open end of the intake are in the vapor phase, because the filling is made by the overflow and the liquid above the lower edge of the lower intake pipe to be won. When rolling with the bow of the boat on the keel (the pitch angle) one of the open ends of the intake will be dropped into the liquid, and the other to rise and be almost at the highest point, where it will be in the vapor phase. When bending down to predictable minimum angle due to the bevel edges of the open ends of the intake at this angle they will adhere to the planes plummet. In the case of the liquid in the gap, which can be formed due to gapping edges beveled open end to the plane of plumb, the fluid in the pipeline will not rise above the liquid level in the tank and never reaches the knee, connecting the pipeline to the Central intake pipe, the cavity of which communicates with the cavity drainage pipeline, because the knee will always be above the liquid level. When in the horizontal plane down will be more dense, and a lower edge opposite the open end of the intake pipe, which deviates from the horizontal plane up, will be pressing plane plumb and increase the cross section for the passage of steam. The tilt angle of roll (transverse vibrations) liquid also will not fall into the cavity drainage pipeline, because the intake and drainage piping located in the Central vertical plane of the vessel and therefore, even when the minimum steam cushion is 5% and the angle of roll 40o(roll no) intake will be in the field of steam.

Thus, the proposed solution prevents the liquid phase into the cavity of the drainage pipe when stored in containers with open drainage, allowing you to maintain stocks of oxygen and hydrogen and, consequently, the energy EC at the beginning of its work.

The invention is illustrated by figures:

Fig. 1 is a longitudinal section of the device;

Fig. 2 - section a-A;

Fig. 3 is an enlarged image of a pair of open beveled end of the intake mounted on the axis of the plumb line.

The unit contains the inner shell 1, which is applied to the vacuum is the ora 4. The device is provided with a pipeline refills 5 with shut-off valve 6, the drainage piping 7 with shut-off valve 8 and the safety valve 9. In the inner shell 1 is the intake 10, consisting of three parallel horizontal pipes 11, 12, 13, located in the Central vertical plane passing through the longitudinal horizontal axis of symmetry x of the vessel. The Central cavity of the pipe 12 is connected with the cavity of the upper pipe 11 by knee 14, and with the cavity of the lower pipe 13 to the wheel 15. Knee 14, 15 attached using fastening elements, respectively, 16, 17 to the inner shell 1. The upper pipe 11 and the lower pipe 13 from opposite sides have open beveled ends, respectively 18, 19. The drain pipe 7 attached to the Central cavity of the pipeline 12 intake 10, and its axis of symmetry coincides with the vertical axis of the vessel "Y", so the shoulders piping intake equal. The lower edge of the open beveled ends 18, 19 rest on the plane plummet, respectively 20, 21, freely suspended on the axes, respectively, 22, 23, fixed to the inner shell with fastening elements 24, 25 are perpendicular to the pipeline and in its lower part, together with the planes plummet, accordingly, 20, 21 form an angle equal to or smaller minimum pitch angle. The lower edge of the lower pipe 13 of the intake 10 is in the plane of the level specified maximum filling of the liquid phase of the cryogenic product 26.

The device operates as follows.

Open shut-off valves 8, 6 and is filling the cavity of the inner shell 1 of cryogenic products (liquid hydrogen or liquid oxygen). The dressing is made to overflow, i.e., when the drain pipe 7 enters the liquid. The fluid entering the drain pipe is fixed by a sharp jump in temperature in the drainage pipe. The liquid level in the tank at the overflow 26 is determined by the structural arrangement of the lower edge of the open beveled end 19 of the lower pipe 13. This level is determined based on a specified number of filled cryogenic product. This level determines the amount of steam bags after filling. The amount of steam cushion is usually 5-10% of the volume of the cavity of the inner shell 1. After filling the required quantity of cryogenic product closes the shut-off valve 6 on the pipeline of 5 refills. If, immediately after the end of the century is the drainage vapors evaporating due to the heat leakage from the ambient cryogenic product. The tilt of the capacity on the corner of the pitch (longitudinal oscillation) in the process of its operation as part of the product one open end of the standpipe 10 will be in the field of fluid, for example, outdoor beveled end 18 of the pipe 11, and the other 19 of the pipe 13 in the field of steam. Through equal distances from the Central vertical axis "Y" piping standpipe 10 - leg piping in the direction of the tilt angle on the opposite, open end 18 of the pipe 11 will be in the field of steam at the same distance from the liquid level, where before there was open end 19. The shoulders of the intake piping must be of maximal length because the longer the length, the greater the destruction of the open end of the tubing from the fluid level when it when tilted in the vapor phase. When tilted to the minimum pitch angle , which is stipulated in advance in operational requirements, due to the bevel edges of the open ends of the pipes of the intake 10 this minimum angle (or less), the edges of the open end being in fluid will adhere to the plane of the corresponding plumb that prevents the ingress of fluid into the cavity of the pipeline. The greater the angle, silicium seal edges to the plane of the plumb will loose, in the gap can be liquid, but it will not reach the knee, located on the opposite end of this pipeline, because it is when the slope will be above the liquid level in the tank, and the liquid in the pipe can rise only to the level of liquid in the tank. Therefore, the tilt of the container, the pitch angle of the liquid will not fall into the cavity of the drain pipe 7. When bending capacity angle of roll (transverse vibrations) the liquid will not enter the cavity drainage pipeline, because the intake 10 and the drain pipe 7 is located in the Central vertical plane that provides the maximum distance from the liquid level in such inclinations.

Thus, the proposed solution is compared with the known prevents liquid phase of the cryogenic product into the cavity of the drainage pipe when stored in containers with open drainage. This allows you to save a scheduled inventory of cryogenic products and, therefore, to provide the required energy power plant.

Device for the storage and supply of cryogenic products containing heat-insulated inner jacket stipulated in the ur, characterized in that the inner shell tanks entered the intake is made of an odd number of horizontal pipelines, at least, of the three, located in the Central vertical plane passing through the longitudinal horizontal axis of symmetry of the vessel, and the Central cavity of the pipeline connected to the cavities of the upper and lower pipelines knees, attached to the inner membrane capacitance, and the upper and lower pipelines from opposite sides have open beveled ends, the drainage pipeline device is docked to the Central cavity of the pipeline intake, and its axis of symmetry coincides with the vertical axis of symmetry of the vessel, the lower edge of the beveled ends of the upper and lower intake piping run in the plane plummet, freely suspended on axes fixed to the inner shell capacity in planes perpendicular to the pipeline intake, with the plane of the bevelled edges of the open ends of the pipes of the intake is made so that in its lower part, together with the planes plummet form an angle equal to or less than the minimum pitch angle, with the lower edge of the lower intake pipe is in a PLoS is determined from the expression

dTr= dothers/(2(tg)0,5)

where dTrthe diameter of each of the three pipes of the intake;

dothers- diameter of the drainage pipe;

- minimum pitch angle.

 

Same patents:

The invention relates to cryogenic engineering and is intended for storage and supply of cryogenic products to consumers, for example to supply hydrogen and oxygen stored at cryogenic temperatures, the electrochemical generator (ECG) power plant (power plant) on the basis of hydrogen-oxygen fuel cells, intended for installation on submarines, in addition, it can be used in space technology for the supply of cryogenic products to consumers, mounted on the spacecraft (SC), as well as in the national economy in the Autonomous EU on the basis of hydrogen-oxygen fuel cells, designed for use in areas where laying of transmission lines is difficult

Cryogenic tank // 2082911

The invention relates to the field cryovacuum technology, in particular the production of vacuum insulation chriopractic

The invention relates to the field of cryogenic engineering, namely for the construction of storage tanks for cryogenic liquids, mainly oxygen and nitrogen, and the removal of hydrogen from the vacuum cavity of the tank

Cryogenic tank // 2022202

The invention relates to cryogenic engineering and is intended for storage and supply of cryogenic products to consumers, for example to supply hydrogen and oxygen stored at cryogenic temperatures, the electrochemical generator (ECG) power plant (power plant) on the basis of hydrogen-oxygen fuel cells, intended for installation on submarines, in addition, it can be used in space technology for the supply of cryogenic products to consumers, mounted on the spacecraft (SC), as well as in the national economy in the Autonomous EU on the basis of hydrogen-oxygen fuel cells, designed for use in areas where laying of transmission lines is difficult

The invention relates to cryogenic engineering and is intended for storage and supply of cryogenic products to consumers, for example, to supply hydrogen and oxygen stored at cryogenic temperatures, the electrochemical generator (ECG) power plant (power plant) on the basis of hydrogen-oxygen fuel cells, intended for installation on submarines

The invention relates to the field of transport engineering and can be used mainly in aeronautical engineering

Rotary valve // 2120080

The invention relates to the technology of protection of tanks open or closed volume from damage during the freezing of the liquid present in them, for example, during storage of liquid products in glass containers at temperatures below 0oC

The invention relates to the field of cryogenic engineering and is intended for storage of cryogenic liquids under conditions of reduced gravity

Drain device // 2260741

FIELD: cryogenic engineering.

SUBSTANCE: drain device comprises branch pipe mounted in the casing and provided with several coaxial baffles . The spaces between the baffles are interconnected and are connected with the space between the branch pipe and casing. The outlet section of the branch pipe is connected with the casing of a shaped cross-piece and the inner side of the branch pipe and outer side of the shaped cross-piece is provided with an adhesive coating. The nozzle is provided with fastening flange. The inlet section of the casing can be provided with ribs on the outer side, and shaped cross-piece can be made of a cone whose outer angle is 230-250°. The adsorbing coating can be applied on the outer side of the branch pipe.

EFFECT: enhanced reliability.

3 cl, 1 dwg

FIELD: methods or apparatus for discharging gasses from pressure vessels.

SUBSTANCE: device comprises hollow housing and base that covers the housing. The housing receives connecting members, collector, and valving member. The collector is defined by the interconnected pipes. The valving member has the valve connected with the exhaust pipe. The pipes of the collector, housing of the valve, and exhaust pipe are defined by two interconnected shaped members.

EFFECT: simplified design and reduced power consumption.

26 cl, 15 dwg

FIELD: fire-fighting, particularly special adaptations of indicating, measuring, or monitoring equipment.

SUBSTANCE: fire-fighting device comprises cylinder filled with fire-extinguishing composition and means to indicate gas losses owing to gas leakage from the cylinder. The means comprises capacitive sensor calibrated in temperature range below and above critical carbon dioxide temperature.

EFFECT: increased reliability of gas leakage determination without cylinder weighting.

17 cl, 6 dwg

FIELD: cryogenic engineering.

SUBSTANCE: tank comprises vessel, two pairs of insulating supports, and locking unit. Each of the supports is made of semi-spherical insert mounted in the socket of the bed and interacting with the cantilever which is secured to the housing of the vessel through the insulating spaces. The unit for locking against the longitudinal and transverse loads is made of spherical stop that cooperates with the vessel by means of heat insulating sleeve mounted on the fitting at the center of the bottom section of the vessel. The movement of the supports of the vessel in longitudinal directions during temperature deformation is provided with the grooves made in cantilevers that receive bushing mounted by means of fastening members. The bushing has grooves for permitting transverse movement of the supports of the vessel.

EFFECT: enhanced reliability and reduced labor consumption for assembling.

6 dwg

Up!