CN211976529U

CN211976529U - BOG liquefaction heating device

Info

Publication number: CN211976529U
Application number: CN202020665378.4U
Authority: CN
Inventors: 王进辉; 李阳; 刘沂陇
Original assignee: Shaanxi Xuqiang Rui Clean Energy Co ltd
Current assignee: Shaanxi Xuqiang Rui Clean Energy Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-20
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a BOG liquefaction heating device, including cartridge heater and compound heat section of thick bamboo, compound heat section of thick bamboo is fixed arranges one side of cartridge heater in, and the top fixed interlude of cartridge heater is connected with the import pipe, and the top and the bottom of cartridge heater inner wall are fixed respectively and are equipped with first barrel box and second barrel box, and the inside of first barrel box and the inside of second barrel box are fixed respectively and are equipped with the first heat exchange tube of a plurality of, the beneficial effects of the utility model are that: can let in normal atmospheric temperature air to the inside of cartridge heater through the air pump, the air carries out air temperature formula heat transfer through first heat exchange tube and stay tube in the inside of cartridge heater, and natural gas proportion after with the air heat transfer can be less than the air, and the high point diffuses easily after diffusing to difficult formation explosive mixture, then the rethread is heated a section of thick bamboo and is carried out water bath heating and can greatly reduced potential safety hazard, combines together vaporizer and heater, and it is more convenient to use the installation.

Description

BOG liquefaction heating device

Technical Field

The utility model relates to a heating device, in particular to BOG liquefaction heating device belongs to LNG application technical field.

Background

The daily evaporation rate of the LNG storage tank is about 0.15%, if the evaporated gas (BOG for short) is not discharged in time, the pressure of the storage tank is increased, and therefore a pressure reduction regulating valve is arranged, and the BOG can be automatically discharged according to the pressure. BOG of storage tank evaporation and BOG of tank wagon unloading get into the BOG storage tank and store after the BOG heater heating, when using water bath formula NG heater winter, BOG can regard as the fuel of boiler, can get into the pipe network summer.

The existing BOG heating device is simple in structure, all the safety valves of the low-temperature system are low-temperature gas during emptying, when the temperature is lower than about minus 107 ℃, the gravity of natural gas is larger than that of air at normal temperature, the natural gas is not easy to diffuse during discharge and can be accumulated downwards, potential safety hazards exist in direct water bath heating, a gasifier and a heater are generally needed to be matched for heating, the use and the installation are inconvenient, the space interest rate of the existing BOG heating device is low, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a BOG liquefaction heating device to solve the current BOG heating device simple structure that proposes in the above-mentioned background art and the problem that the space interest rate is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a BOG liquefaction heating device, includes cartridge heater and compound heat section of thick bamboo, the fixed one side of arranging the cartridge heater in of compound heat section of thick bamboo, the top fixed interlude of cartridge heater is connected with the import pipe, the top and the bottom of cartridge heater inner wall are fixed first section of thick bamboo box and the second section of thick bamboo box of being equipped with respectively, the inside of first section of thick bamboo box and the inside of second section of thick bamboo box are fixed respectively and are equipped with the first heat exchange tube of a plurality of, a plurality of the bottom and the fixed pipe that the equal fixedly connected with in bottom of first heat exchange tube runs through first section of thick bamboo box or second section of thick bamboo box, the outer lane of first section of thick bamboo box bottom is through the fixed intercommunication in outer lane on four stay tubes and second section of thick bamboo box top, the bottom fixed mounting of cartridge heater opposite side has the air pump, the exit end of air pump and the opposite.

As a preferred technical scheme of the utility model, the fixed second heat exchange tube that is equipped with in inside of reheating section of thick bamboo, the one end of second heat exchange tube and the bottom intercommunication of heating cylinder one side, the other end of second heat exchange tube runs through the top of reheating section of thick bamboo opposite side, the inside notes of reheating section of thick bamboo has the water, the fixed electric plate that is equipped with in bottom of reheating section of thick bamboo inner wall.

As a preferred technical scheme of the utility model, the fixed shower that is equipped with in top of reheat section of thick bamboo inner wall, the bottom fixed mounting of shower has a plurality of shower nozzle, the middle part fixed mounting of reheat section of thick bamboo opposite side has the water pump, the entrance point of water pump passes through the bottom intercommunication of connecting pipe and reheat section of thick bamboo opposite side, the exit end of water pump passes through the opposite side intercommunication of connecting pipe and shower.

As an optimal technical scheme of the utility model, the fixed flush mounting plate that is equipped with of avris of cartridge heater, temperature detect switch, air pump control switch and water pump control switch are installed respectively to flush mounting plate's surface, the fixed inside of putting in the section of thick bamboo that heats is fixed to temperature detect switch's probe, electric plate, air pump and water pump are respectively through temperature detect switch, air pump control switch and water pump control switch and external power supply electric connection.

As an optimized technical scheme of the utility model, first heat exchange tube and second heat exchange tube all become the heliciform.

As an optimal technical scheme of the utility model, four the inboard fixed alternate respectively of stay tube is connected with a plurality of annular pipe, a plurality of the annular pipe distributes, four in a staggered way each other the equal fixed mounting in bottom of stay tube has the check valve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a BOG liquefaction heating device can let in normal atmospheric temperature air to the inside of cartridge heater through the air pump, and the air carries out air-heated heat transfer through first heat exchange tube and stay tube in the inside of cartridge heater, and the natural gas proportion after with the air heat transfer can be less than the air, will spread easily after the high point diffuses to difficult explosive mixture that forms, then carries out water bath heating through the section of thick bamboo of heating again and can greatly reduce the potential safety hazard, combines together vaporizer and heater, and it is more convenient to use the installation; the first heat exchange tube and the second heat exchange tube are both spiral, so that the internal spaces of the heating cylinder and the reheating cylinder can be more reasonably utilized, the occupied space of the device is reduced to the maximum extent, the heat exchange area can be increased through the annular tube on the supporting tube, the heat exchange effect is improved, and the space utilization rate is further improved; the water body at the bottom of the reheating cylinder can be conveyed to the top through the water pump in the water bath process, so that the water bath temperature is more uniform, and the water bath effect is improved.

Drawings

Fig. 1 is a schematic front structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is a schematic view of the supporting tube structure of the present invention.

In the figure: 1. a heating cylinder; 2. a reheating cylinder; 3. an inlet pipe; 4. a first cartridge; 5. a second cartridge; 6. a first heat exchange tube; 7. a fixed tube; 8. supporting a tube; 9. an annular tube; 10. an air pump; 11. an exhaust pipe; 12. a check valve; 13. a second heat exchange tube; 14. an electric hot plate; 15. a shower pipe; 16. a spray head; 17. a water pump; 18. a connecting pipe; 19. a switch panel; 20. a temperature control switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a BOG liquefaction heating device, which comprises a heating cylinder 1 and a reheating cylinder 2, wherein the reheating cylinder 2 is fixedly arranged at one side of the heating cylinder 1, an inlet pipe 3 is fixedly and alternately connected at the top end of the heating cylinder 1, a first cylinder box 4 and a second cylinder box 5 are respectively and fixedly arranged at the top and bottom of the inner wall of the heating cylinder 1, a plurality of first heat exchange tubes 6 are respectively and fixedly arranged in the first cylinder box 4 and the second cylinder box 5, a fixed tube 7 penetrating through the first cylinder box 4 or the second cylinder box 5 is fixedly connected at the bottom end and bottom end of the first heat exchange tubes 6, the outer ring at the bottom end of the first cylinder box 4 is fixedly communicated with the outer ring at the top end of the second cylinder box 5 through four support tubes 8, an air pump 10 is fixedly arranged at the bottom of the other side of the heating cylinder 1, the outlet end of the air pump 10 is communicated with the other side of the second cylinder box 5, an exhaust pipe 11 is fixedly and alternately, can carry out air temperature formula heat transfer through cartridge heater 1, can carry out the water bath heating through reheating section of thick bamboo 2, combine together vaporizer and heater, it is more convenient to use the installation.

Preferably, a second heat exchange tube 13 is fixedly arranged inside the reheating cylinder 2, one end of the second heat exchange tube 13 is communicated with the bottom end of one side of the heating cylinder 1, the other end of the second heat exchange tube 13 penetrates through the top of the other side of the reheating cylinder 2, a water body is injected inside the reheating cylinder 2, an electric heating plate 14 is fixedly arranged at the bottom of the inner wall of the reheating cylinder 2, the second heat exchange tube 13 is matched with the water body to form water bath reheating for secondary heating to ensure the outlet temperature of BOG, a spray pipe 15 is fixedly arranged at the top of the inner wall of the reheating cylinder 2, a plurality of spray heads 16 are fixedly arranged at the bottom end of the spray pipe 15, a water pump 17 is fixedly arranged in the middle of the other side of the reheating cylinder 2, the inlet end of the water pump 17 is communicated with the bottom of the other side of the reheating cylinder 2 through a connecting tube 18, the outlet end of the water pump 17 is communicated with the other side of the, the water bath temperature is more uniform, the water bath effect is improved, a switch panel 19 is fixedly arranged on the side of the heating cylinder 1, a temperature control switch 20, an air pump control switch and a water pump control switch are respectively installed on the surface of the switch panel 19, a probe of the temperature control switch 20 is fixedly arranged inside the reheating cylinder 2, an electric heating plate 14, an air pump 10 and a water pump 17 are respectively and electrically connected with an external power supply through the temperature control switch 20, the air pump control switch and the water pump control switch, the whole device is conveniently controlled through the switch panel 19, the electric heating plate 14 can be automatically controlled through the temperature control switch 20 to carry out heating control on a water body, the first heat exchange tube 6 and the second heat exchange tube 13 are both in a spiral shape, the space utilization rate is improved, the heat exchange path is prolonged, the heat exchange area is further increased, the heat exchange effect is improved, a plurality of annular tubes 9 are, the bottom of four stay tubes 8 all fixed mounting have check valve 12, can increase heat transfer area through annular tube 9, further improve the heat transfer effect, can prevent the backward flow through check valve 12.

When the BOG liquefaction heating device is used, firstly, low-temperature BOG is introduced into the heating cylinder 1 through the inlet pipe 3, meanwhile, the air pump 10 and the water pump 17 are opened through the switch panel 19, external normal-temperature gas can be conveyed into the second cylinder box 5 through the air pump 10, then, the external normal-temperature gas is introduced into the first cylinder box 4 through the four supporting pipes 8, finally, the heating cylinder 1 is discharged through the exhaust pipe 11, meanwhile, the low-temperature BOG firstly passes through the first heat exchange pipes 6 in the first cylinder box 4 and then flows downwards through the first heat exchange pipes 6 in the second cylinder box 5, air-temperature heat exchange is carried out through the first heat exchange pipes 6 and the supporting pipes 8 in the flowing process, the BOG after heat exchange enters the second heat exchange pipes 13 to carry out water bath heating, finally, the reheating cylinder 2 is discharged, the specific gravity of the BOG after heat exchange with air is smaller than that of air, and the high-point diffusion is easy, thereby be difficult for forming explosive mixture, then the rethread is heated in the hydrothermal section of thick bamboo 2 carries out water bath and can greatly reduced potential safety hazard, combine together vaporizer and heater, it is more convenient to use the installation, and in heat transfer and heating process because first heat exchange tube 6 and second heat exchange tube 13 all are the heliciform, can be more reasonable utilize the space inside cartridge heater 1 and hydrothermal section of thick bamboo 2, the maximum reduction device occupation space, and can increase heat transfer area through the ring pipe 9 on the stay tube 8, improve the heat transfer effect, further improve space utilization, in the water bath heating process, can the heating control to the water by automatic control electric plate 14 through temperature switch 20, can carry the water of hydrothermal section of thick bamboo 2 bottoms to the top through water pump 17, make the water bath temperature more even, improve the water bath effect.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A BOG liquefaction heating device comprises a heating cylinder (1) and a reheating cylinder (2), and is characterized in that the reheating cylinder (2) is fixedly arranged on one side of the heating cylinder (1), an inlet pipe (3) is fixedly and alternately connected to the top end of the heating cylinder (1), a first cylinder box (4) and a second cylinder box (5) are fixedly arranged at the top and the bottom of the inner wall of the heating cylinder (1) respectively, a plurality of first heat exchange tubes (6) are fixedly arranged in the first cylinder box (4) and the second cylinder box (5) respectively, a plurality of fixing tubes (7) penetrating through the first cylinder box (4) or the second cylinder box (5) are fixedly connected to the bottom end and the bottom end of each first heat exchange tube (6), the outer ring at the bottom end of the first cylinder box (4) is fixedly communicated with the outer ring at the top end of the second cylinder box (5) through four supporting tubes (8), and an air pump (10) is fixedly arranged at the bottom of the other side of the heating cylinder (1), the outlet end of the air pump (10) is communicated with the other side of the second cylinder box (5), and the exhaust pipe (11) is fixedly inserted and connected to the other side of the first cylinder box (4).

2. The BOG liquefaction heating apparatus according to claim 1, wherein: the interior of the reheating cylinder (2) is fixedly provided with a second heat exchange tube (13), one end of the second heat exchange tube (13) is communicated with the bottom end of one side of the heating cylinder (1), the other end of the second heat exchange tube (13) penetrates through the top of the other side of the reheating cylinder (2), a water body is injected into the interior of the reheating cylinder (2), and the bottom of the inner wall of the reheating cylinder (2) is fixedly provided with an electric heating plate (14).

3. The BOG liquefaction heating apparatus according to claim 2, wherein: the top of the inner wall of the reheating cylinder (2) is fixedly provided with a spray pipe (15), the bottom end of the spray pipe (15) is fixedly provided with a plurality of spray heads (16), the middle part of the other side of the reheating cylinder (2) is fixedly provided with a water pump (17), the inlet end of the water pump (17) is communicated with the bottom of the other side of the reheating cylinder (2) through a connecting pipe (18), and the outlet end of the water pump (17) is communicated with the other side of the spray pipe (15) through the connecting pipe (18).

4. The BOG liquefaction heating device of claim 3, wherein: the avris of cartridge heater (1) is fixed and is equipped with flush mounting plate of switch (19), temperature detect switch (20), air pump control switch and water pump control switch are installed respectively to the surface of flush mounting plate of switch (19), the probe of temperature detect switch (20) is fixed to be arranged in the inside of reheating section of thick bamboo (2), electric hot plate (14), air pump (10) and water pump (17) are respectively through temperature detect switch (20), air pump control switch and water pump control switch and external power supply electric connection.

5. The BOG liquefaction heating apparatus according to claim 2, wherein: the first heat exchange tube (6) and the second heat exchange tube (13) are both spiral.

6. The BOG liquefaction heating apparatus according to claim 1, wherein: the inner sides of the four supporting pipes (8) are respectively fixedly and alternately connected with a plurality of annular pipes (9) in a penetrating mode, the annular pipes (9) are distributed in a staggered mode, and the bottom of each supporting pipe (8) is fixedly provided with a check valve (12).