CN214002827U - Novel carbon dioxide low temperature storage tank - Google Patents

Abstract

The utility model relates to a novel carbon dioxide low temperature storage tank, which comprises a tank body, the jar body comprises inner tank and outer jar, outer jar is fixed subaerial, inner tank bottom intercommunication has the drain pipe, inner tank top intercommunication has the feed liquor pipe, it has the pearly-lustre sand layer to fill between inner tank and the outer jar, return mechanism is installed to the bottom surface in the outer jar, return mechanism is including returning the reply board, the reply board is in outer jar interior bottom surface top evenly distributed, it is connected with a plurality of elastic component to return between the bottom surface in board and the outer jar, elastic component can make the reply board have the trend that the bottom surface removed in the outer jar of orientation deviates from. This application has the effect that improves jar body thermal insulation performance.

Description

Novel carbon dioxide low temperature storage tank

Technical Field

The application relates to the technical field of low-temperature storage equipment, in particular to a novel carbon dioxide low-temperature storage tank.

Background

Gaseous carbon dioxide can be converted into liquid under the conditions of high pressure and low temperature, and the liquid carbon dioxide is convenient to transport and store and widely applied to food and beverage production, medical care, machining and chemical industry. The storage of liquid carbon dioxide usually adopts the carbon dioxide low temperature storage tank, because the temperature in the storage tank can produce undulantly, and the easy gasification inflation of liquid carbon dioxide produces very big influence to the security of storage tank.

In order to solve the problems, the Chinese patent with the publication number of CN207230151U discloses a carbon dioxide storage tank for fire fighting, which comprises an inner container, a vacuum layer and a shell, wherein the vacuum layer is filled with pearlife, the left end of the shell is fixedly provided with a refrigerating unit and a pressurizing device, the right end of the shell is fixedly provided with an air injection device communicated with the inner container, and the lower end of the shell is fixedly provided with a lower bracket; the refrigerating unit is connected with a refrigerating pipe fixed on the outer surface of the inner container; the pressurizing device is connected into the inner container through the main air pipe, the temperature of the inner container is detected through the thermometer, and if the temperature deviates from minus 25 degrees, the temperature of the inner container is stabilized; the temperature in the inner container is constant, and the pressure is constant.

In view of the above related technologies, the inventor believes that the inner container in the storage tank deforms and contracts when the temperature is reduced, and the pearlite sand is deposited along with the deformation and contraction to form a cavity, so that the heat preservation effect of the inner container is poor.

SUMMERY OF THE UTILITY MODEL

Lead to the poor problem of storage tank thermal insulation performance in order to improve subsiding of pearlite sand, this application provides a novel carbon dioxide low temperature storage tank.

The application provides a novel carbon dioxide low temperature storage tank adopts following technical scheme:

the utility model provides a novel carbon dioxide low temperature storage tank, which comprises a tank body, the jar body comprises inner tank and outer jar, outer jar is fixed subaerial, inner tank bottom portion intercommunication has the drain pipe, inner tank top portion intercommunication has the feed liquor pipe, it has the pearly-lustre sand layer to fill between inner tank and the outer jar, outer jar interior bottom surface mounting has answer mechanism, answer mechanism includes the reply board, answer board in outer jar interior bottom surface top evenly distributed, be connected with a plurality of elastic component between the bottom surface in reply board and the outer jar, elastic component can make the answer board have the trend that the orientation deviates from outer jar interior bottom surface and removes.

Through adopting above-mentioned technical scheme, fill behind the pearly-lustre sand layer between outer jar and the inner tank, it is comparatively loose between the pearly-lustre sand, after pouring into liquid carbon dioxide in the inner tank, the inner tank carries out the heat exchange with liquid carbon dioxide, the temperature of inner tank reduces rapidly, the jar body of inner tank takes place the shrink thereupon, the pearly-lustre sand layer between inner tank and the outer jar can take place to subside, make the laminating degree of pearly-lustre sand layer and inner tank descend, the heat preservation effect of pearly-lustre sand layer to the inner tank has been reduced, elastic component can make the reply board orientation deviate from the direction removal of outer jar inner bottom surface, provide the holding power to the pearly-lustre sand of top, make pearly-lustre sand rebound, offset the settlement that the pearly-lustre sand produced, reduce the degree of subsiding the pearly-lustre sand layer, improve the.

Optionally, the restoring mechanism further comprises a fixing plate, the fixing plate is fixed on the inner bottom surface of the outer tank, the elastic assembly comprises a fixing sleeve, a sliding sleeve and an elastic piece, the fixing sleeve is fixed on the fixing plate, the sliding sleeve is fixed on the side wall of the restoring plate, the sliding sleeve is sleeved on the fixing sleeve in a sliding mode, and the elastic piece is arranged in the fixing sleeve.

Through adopting above-mentioned technical scheme, the pearly-lustre sand produces decurrent pressure to replying the board and makes and reply board downstream to drive sliding sleeve and follow fixed sleeve downstream, the elastic component compression in the fixed sleeve and save the energy, when inner tank shrink produced the clearance, the elastic component kick-backs and makes and reply board upstream, makes pearly-lustre sand upstream and fills up the clearance.

Optionally, the recovery plate is provided with a plurality of material leaking holes, and the diameter of each material leaking hole is larger than the particle size of the pearl sand.

By adopting the technical scheme, the pearlife can leak from the leaking hole, the space between the fixed plate and the recovery plate is filled, the condition that a cavity appears on the pearlife layer is reduced, and the heat insulation effect of the pearlife layer is ensured.

Optionally, an elastic heat-insulating layer is arranged on the outer side wall of the inner tank.

Through adopting above-mentioned technical scheme, the elasticity heat preservation can fill the space that produces when the inner tank shrink, further reduces the settlement degree on pearly-lustre sand layer.

Optionally, a vacuum tube is connected to the side wall of the outer tank, the vacuum tube extends into the pearlite layer, and one end of the vacuum tube, which is far away from the outer tank, is connected with a vacuum unit.

Through adopting above-mentioned technical scheme, the vacuum unit can regularly carry out the evacuation between inner tank and the outer jar, improves the vacuum between inner tank and the outer jar, reduces inner tank and external heat exchange degree, improves the thermal insulation performance of the jar body.

Optionally, one end of the vacuum tube extending into the pearly sand layer is communicated with a filtering part, the filtering part is spherical, and a plurality of filtering holes are formed in the spherical surface of the filtering part.

By adopting the technical scheme, the filtering holes can prevent the pearlife from entering the vacuum tube, the probability of blocking the vacuum tube by the pearlife is reduced, the spherical filtering part has larger surface area, and the vacuum extraction efficiency is improved.

Optionally, a heat exchange pipe is arranged in the pearly-lustre sand layer and communicated with a cooling unit.

Through adopting above-mentioned technical scheme, hot exchange pipe carries out the heat exchange with the pearly-lustre sand layer, further reduces inner tank and external heat exchange, and the cooling unit can provide cold circulation for hot cooling tube.

Optionally, the heat exchange tube is a helical coil.

Through adopting above-mentioned technical scheme, the area of contact of heliciform coil pipe can increase heat-cooling pipe and pearly-lustre sand layer improves heat exchange efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the elastic piece provides elasticity for the recovery plate, so that the recovery plate provides supporting force for the pearlife above the recovery plate, the sedimentation degree of the pearlife layer is reduced, the bonding degree of the pearlife layer and the inner tank is improved, and the heat insulation performance of the tank body is improved;

2. when the elastic heat-insulating layer rebounds, gaps generated when the inner tank shrinks are filled, the settling amount of the pearl sand layer is further reduced, and the heat-insulating performance of the pearl sand layer on the inner tank is improved;

3. the vacuum unit is used for periodically vacuumizing, so that the vacuum degree between the inner tank and the outer tank is improved, and the heat insulation performance of the tank body is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Description of reference numerals: 1. a tank body; 11. an outer tank; 12. an inner tank; 13. an elastic heat-insulating layer; 14. a liquid inlet pipe; 15. a liquid outlet pipe; 16. a safety valve; 17. a liquid outlet valve; 18. a heat exchange tube; 19. a cooling unit; 2. a return mechanism; 21. a fixing plate; 22. a recovery plate; 23. an elastic component; 231. fixing the sleeve; 232. a sliding sleeve; 233. an elastic member; 24. a material leaking hole; 3. a vacuum tube; 31. a filtering part; 32. a filtration pore; 33. a vacuum detector; 34. and (4) a vacuum unit.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The novel carbon dioxide low temperature storage tank that this embodiment was announced, refer to fig. 1, novel carbon dioxide low temperature storage tank includes jar body 1, and jar body 1 comprises inner tank 12 and outer jar 11 from interior to exterior, and inner tank 12 and outer jar 11 are cylinder type and vertical setting, and the welding of 11 outside bottoms of outer jar has the landing leg, and the landing leg is fixed subaerial. Be equipped with the interval between inner tank 12 and the outer jar 11, it has the pearly-lustre sand layer to fill between outer jar 11 and the inner tank 12, and inner tank 12 bottom intercommunication has drain pipe 15, and the free end of drain pipe 15 stretches out outer jar 11 bottoms and installs drain valve 17, and inner tank 12 top intercommunication has feed liquor pipe 14, and feed liquor pipe 14 stretches out outer jar 11 tops and installs relief valve 16. The side wall of the outer tank 11 is communicated with a vacuum tube 3, the vacuum tube 3 is communicated with a vacuum unit, and the vacuum unit pumps out air in a pearlite layer between the inner tank 12 and the outer tank 11 to reduce heat exchange between the inner tank 12 and the outside. The inner bottom of the outer tank 11 is also provided with a return mechanism 2 for preventing the pearlife from settling, the settling amount of the pearlife is reduced through the return mechanism 2, and the heat preservation effect of the pearlife layer on the inner tank 12 is improved.

Referring to fig. 1 and 2, the restoring mechanism 2 includes a plurality of fixing plates 21 and a plurality of restoring plates 22, the fixing plates 21 and the restoring plates 22 are rectangular plate-shaped and are arranged in parallel to each other, the fixing plates 21 are horizontally welded on the inner bottom surface of the outer tank 11, and a plurality of fixed plates 21 are evenly distributed on the inner bottom surface of the outer tank 11 at intervals, a return plate 22 is arranged above the fixed plates 21, the fixed plates 21 and the return plate 22 are connected together through a plurality of elastic components 23, each elastic component 23 comprises a fixed sleeve 231, the fixed sleeves 231 are vertically welded on the top surfaces of the fixed plates 21, sliding sleeves 232 are vertically welded on the bottom surfaces of the return plates 22, the sliding sleeves 232 are sleeved on the fixed sleeves 231, elastic pieces 233 are arranged in the fixed sleeves 231, the elastic pieces 233 are springs in the embodiment, one ends of the springs are welded on the bottoms of the fixed sleeves 231, and the spring is extended out of the fixed sleeve 231, and one end of the spring departing from the fixed sleeve 231 is abutted against the wall of the sliding sleeve 232. The number of the elastic members 23 in this embodiment is four, and the four elastic members are respectively disposed at four corners of the fixing plate 21. The spring can provide elasticity for the recovery plate 22, and the recovery plate 22 provides supporting force for the pearlife above, so that the sedimentation degree of the pearlife is reduced, and the pearlife can continuously wrap the inner tank. The recovery plate 22 is provided with a plurality of material leaking holes 24, the material leaking holes 24 are circular holes, the diameter of the material leaking holes 24 is larger than the particle size of the pearlife, the pearlife can leak from the material leaking holes 24, the space between the recovery plate 22 and the fixing plate 21 is filled, and the compactness of the pearlife layer is increased.

Referring to fig. 1, in order to further improve the heat preservation effect to inner tank 12, be fixed with elasticity heat preservation 13 on the lateral wall of inner tank 12, elasticity heat preservation 13 adopts the cotton system of elasticity heat preservation, and elasticity heat preservation 13 can kick-back when inner tank 12 contracts, compensates the shrink of inner tank 12, further reduces the settlement degree of pearlite. The intercommunication has vacuum tube 3 on the 11 lateral walls of outer jar, and vacuum tube 3 stretches into between inner tank 12 and the outer jar 11 and is connected with filter house 31, and filter house 31 is spherical structure, and a plurality of filtration pore 32 have been seted up on the surface of filter house 31, and the even interval distribution in spherical surface of a plurality of filtration pore 32 edge filter house 31. One end of the vacuum tube 3 departing from the outer tank 11 is connected with a vacuum unit 34, the side wall of the outer tank 11 is provided with a vacuum detector 33, the vacuum unit 34 is selectively opened according to the reading of the vacuum detector 33 to extract air, the vacuum degree between the inner tank 12 and the outer tank 11 is improved, the heat exchange between the inner tank 12 and the outside is reduced, and the heat preservation effect of the tank body 1 is improved.

Referring to fig. 1, heat exchange tube 18 is arranged outside elastic heat preservation layer 13, heat exchange tube 18 is the heliciform coil pipe, heat exchange tube 18's import and export are established in the outer jar 11 outside and are connected with cooling unit 19, cool down the spiral coil pipe through cooling unit 19, heat exchange tube 18 and the temperature that reduces the pearly-lustre sand layer reduce the volume change that the pearly-lustre sand produced because of temperature variation, improve the degree of compaction of pearly-lustre sand layer.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a novel carbon dioxide low temperature storage tank, includes a jar body (1), jar body (1) comprises inner tank (12) and outer jar (11), outer jar (11) are fixed subaerial, inner tank (12) bottom intercommunication has drain pipe (15), inner tank (12) top intercommunication has feed liquor pipe (14), inner tank (12) with it has pearly-lustre sand layer, its characterized in that to fill between outer jar (11): answer mechanism (2) are installed to the bottom surface in outer jar (11), answer mechanism (2) are including answer board (22), answer board (22) in bottom surface evenly distributed in outer jar (11), be connected with a plurality of elastic component (23) between the bottom surface in answer board (22) and outer jar (11), elastic component (23) can make answer board (22) have the orientation and deviate from the trend that the bottom surface removed in outer jar (11).

2. The novel carbon dioxide cryogenic storage tank of claim 1, characterized in that: reply mechanism (2) still include fixed plate (21), fixed plate (21) are fixed on outer jar (11) inner bottom surface, elastic component (23) are including fixed sleeve (231), sliding sleeve (232) and elastic component (233), fixed sleeve (231) are fixed on fixed plate (21), sliding sleeve (232) are fixed on reply board (22) lateral wall, sliding sleeve (232) slip cover is established on fixed sleeve (231), elastic component (233) are established in fixed sleeve (231).

3. The novel carbon dioxide cryogenic storage tank of claim 2, characterized in that: the recovery plate (22) is provided with a plurality of material leaking holes (24), and the diameter of the material leaking holes (24) is larger than the grain size of the pearlife.

4. The novel carbon dioxide cryogenic storage tank of claim 1, characterized in that: and an elastic heat-insulating layer (13) is arranged on the outer side wall of the inner tank (12).

5. The novel carbon dioxide cryogenic storage tank of any one of claims 1 to 4, characterized in that: the vacuum tube (3) is connected to the side wall of the outer tank (11), the vacuum tube (3) extends into the pearlite sand layer, and one end, deviating from the outer tank (11), of the vacuum tube (3) is connected with a vacuum unit (34).

6. The novel carbon dioxide cryogenic storage tank of claim 5, characterized in that: one end of the vacuum tube (3) extending into the pearly-lustre sand layer is communicated with a filtering part (31), the filtering part (31) is spherical, and a plurality of filtering holes (32) are formed in the spherical surface of the filtering part (31).

7. The novel carbon dioxide cryogenic storage tank of claim 1, characterized in that: and a heat exchange pipe (18) is arranged in the pearly-lustre sand layer, and the heat exchange pipe (18) is communicated with a cooling unit (19).

8. The novel carbon dioxide cryogenic storage tank of claim 7, characterized in that: the heat exchange tube (18) is a spiral coil.

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