CN216557942U

CN216557942U - Mixed injection evaporator for liquid oxygen production

Info

Publication number: CN216557942U
Application number: CN202122319270.7U
Authority: CN
Inventors: 程卫江; 汪凤雷; 张前
Original assignee: Xuzhou Shaangu Industrial Gas Co ltd; Shaanxi Qinfeng Gas Co ltd
Current assignee: Xuzhou Shaangu Industrial Gas Co ltd; Shaanxi Qinfeng Gas Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-05-17
Anticipated expiration: 2031-09-24

Abstract

The utility model provides a liquid oxygen production is with mixing injection evaporimeter, upper surface through connection blast pipe at the mixing box, fixed surface connecting equipment case at the mixing box, fixed connection backup pad one in the outside of mixing box, the upper surface of backup pad one is equipped with liquid oxygen jar, the intake pipe is connected to the gas outlet of liquid oxygen jar, the other end through connection of intake pipe is in the mixing box outside, one side fixed connection backup pad two of equipment case back of the body backup pad one mutually, the upper surface of backup pad two is equipped with the air-blower, the blowing pipe through connection equipment case outside of air-blower, fixed surface connection motor under the equipment incasement, the output shaft end connection of motor has the connecting axle, the spacing through connection mixing box lower surface of connecting axle and equipment case upper surface and fixedly connected with stirring rake. The utility model can improve the mixing effect and mixing efficiency of the evaporator on the liquid oxygen and the dry air.

Description

Mixed injection evaporator for liquid oxygen production

Technical Field

The utility model relates to an evaporator, in particular to a mixed jet evaporator for liquid oxygen production, and belongs to the technical field of evaporators for gas production.

Background

When the equipment is shut down or the process is adjusted, the liquid oxygen needs to be discharged, wherein the mixed jet evaporator for liquid oxygen production is a device for safely discharging the mixed liquid oxygen and dry air into the air.

Traditional liquid oxygen production is with mixing injection evaporimeter when mixing liquid oxygen and dry air, the existence is difficult to carry out the current-limiting to the dry air that gets into in the mixing storehouse, leads to dry air and liquid oxygen to mix inadequately, causes both to mix the effect poor, and lacks the structure of stirring with higher speed between liquid oxygen and the dry air, leads to the problem that mixing efficiency is low.

Disclosure of Invention

The utility model aims to provide a mixed jet evaporator for producing liquid oxygen, which can improve the mixing effect and mixing efficiency of the evaporator on the liquid oxygen and dry air.

In order to achieve the above object, the present invention provides a mixing and injecting evaporator for liquid oxygen production, comprising a mixing tank for mixing liquid oxygen with dry air, the upper surface of the mixing box is communicated with an exhaust pipe, the lower surface of the mixing box is fixedly connected with an equipment box, a first support plate is fixedly connected with the outer side of the mixing box, a liquid oxygen tank is arranged on the upper surface of the first support plate, an air outlet of the liquid oxygen tank is connected with an air inlet pipe, the other end of the air inlet pipe is communicated with the outer side of the mixing box, one side of the equipment box back to the first supporting plate is fixedly connected with a second supporting plate, the upper surface of the second supporting plate is provided with a blower, the blowing pipe of the blower penetrates through the outer side of the equipment box, the inner lower surface of the equipment box is fixedly connected with the motor, the end part of an output shaft of the motor is connected with a connecting shaft, and the connecting shaft is in limit penetrating connection with the lower surface of the mixing box and the upper surface of the equipment box and is fixedly connected with a stirring paddle.

As a further improvement of the utility model, the upper surface in the equipment box is communicated with four air guide pipes, the four air guide pipes are distributed in an annular array by taking the connecting shaft as a circle center, one ends of the four air guide pipes communicated with the equipment box extend upwards and are communicated with the lower surface of the mixing box, the lower ends of the four air guide pipes are communicated with a return pipe, one side of the return pipe is communicated with a threaded joint, and one side of the threaded joint, which is far away from the return pipe, is in threaded connection with a blowing pipe of the blower.

As a further improvement of the utility model, the inner wall of the mixing box is fixedly connected with two sieve plates, the two sieve plates are both positioned right above the stirring paddle, air vent structures for discharging mixed gas are arranged in the two sieve plates, and the air vents are provided with a plurality of groups.

As a further improvement of the exhaust pipe, the inner wall of the exhaust pipe is symmetrically and fixedly connected with two limiting blocks, the opposite sides of the two limiting blocks are in limiting and rotating connection with rotating rollers, the outer side surfaces of the rotating rollers are fixedly connected with four baffles, and the four baffles are distributed in an annular array by taking the rotating rollers as circle centers.

As a further improvement of the utility model, the outer sides of the top ends of the four air guide tubes are symmetrically and fixedly connected with supporting blocks, one ends of the supporting blocks, which are opposite to the air guide tubes, are fixedly connected with diffusion covers, and the diffusion covers are bottomless hollow cones.

As a further improvement of the utility model, the middle part of the outer side of the liquid oxygen tank is in limit clamping connection with a limit ring, and the outer side of the limit ring is fixedly connected with the outer side of the mixing box.

As a further improvement of the utility model, the lower surface of the first support plate is fixedly connected with an inclined plate, and one end of the inclined plate, which is far away from the first support plate, is fixedly connected to the outer side of the equipment box.

Compared with the prior art, the utility model can reduce the strength of dry air eruption through the return pipe, the air duct and the diffusion cover, thereby leading the dry air to be capable of fully performing mixing reaction with liquid oxygen at the bottom in the mixing box, leading the air at the bottom in the mixing box to be stirred when the mixing reaction is performed between the liquid oxygen and the dry air through the stirring paddle, accelerating the mixing reaction between the dry air and the liquid oxygen, improving the mixing efficiency, leading the mixing time to be prolonged again and enhancing the mixing effect through the four baffles which are fixedly connected with the outer side outlines of a plurality of groups of air holes in two layers of sieve plates and the rotating roller in an annular array mode, solving the problems of poor mixing effect and low mixing efficiency of the traditional mixing jet evaporator for producing the liquid oxygen, achieving the purposes of prolonging the mixing time of the dry air and the liquid oxygen, further enhancing the mixing effect of the dry air and the liquid oxygen, and leading the air flow rate to be stirred, thereby accelerating the mixing reaction between the two and achieving the effect of improving the mixing efficiency between the two.

Drawings

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

FIG. 2 is an enlarged view of the structure of the region A in FIG. 1;

FIG. 3 is an enlarged view of the structure of region B in FIG. 1;

FIG. 4 is a bottom sectional view of the mixing box of the present invention;

FIG. 5 is an exploded view of the structure at the turning roll of the present invention;

fig. 6 is a schematic top view of the spreading cover of the present invention.

In the figure: 1. the device comprises a mixing box, 2, an exhaust pipe, 3, an equipment box, 4, an inclined plate, 5, a support plate I, 6, a liquid oxygen tank, 7, a support plate II, 8, an air blower, 9, a motor, 10, a connecting shaft, 11, a stirring paddle, 12, a pipe clip, 13, an air guide pipe, 14, a diffusion cover, 15, a threaded joint, 16, a sieve plate, 17, a limiting block, 18, a rotating roller, 19, a baffle, 20, a supporting block, 21, an air inlet pipe, 22 and a limiting ring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in figures 1 and 2, a mixed jet evaporator for liquid oxygen production comprises a mixing box 1 for mixing liquid oxygen and dry air, an exhaust pipe 2 is connected to the upper surface of the mixing box 1 through a through hole, an equipment box 3 is fixedly connected to the lower surface of the mixing box 1, a first support plate 5 is fixedly connected to the outer side of the mixing box 1, a liquid oxygen tank 6 is arranged on the upper surface of the first support plate 5, an air inlet pipe 21 is fixedly connected to an air outlet of the liquid oxygen tank 6, the other end of the air inlet pipe 21 penetrates through the outer side of the mixing box 1 and extends into the mixing box 1, a second support plate 7 is fixedly connected to the bottom end of the equipment box 3, which is opposite to the first support plate 5, an air blower 8 is arranged on the upper surface of the second support plate 7, an air blowing pipe of the air blower 8 penetrates through the outer side of the equipment box 3 and extends into the equipment box, a motor 9 is fixedly connected to the inner lower surface of the equipment box 3, and a connecting shaft 10 is fixedly connected to the end of the motor 9, the connecting shaft 10 is in limit penetrating connection with the lower surface of the mixing box 1 and the upper surface of the equipment box 3 and is fixedly connected with a stirring paddle 11; reach through intake pipe 21 and continuously carry the liquid oxygen in the liquid oxygen jar 6 and get into mixing box 1 in, through connecting axle 10 upper and lower both ends respectively fixed connection stirring rake 11 and the output of motor 9, when motor 9 starts, the motor 9 output drives stirring rake 11 through connecting axle 10 and carries out synchronous rotation, and then makes stirring rake 11 rotate in mixing box 1 lower floor, reaches the mixing efficiency who promotes mixing between the air of lower floor in liquid oxygen and mixing box 1.

The upper surface in the equipment box 3 is communicated with four air guide pipes 13, the four air guide pipes 13 are distributed in an annular array by taking the connecting shaft 10 as a circle center, one ends of the four air guide pipes 13 communicated with the equipment box 3 extend upwards and are communicated with the lower surface of the mixing box 1, the lower ends of the four air guide pipes 13 are communicated with a return pipe 12, one side of the return pipe 12 is communicated with a threaded connector 15, and one side of the threaded connector 15, which is far away from the return pipe 12, is in threaded connection with a blowing pipe of the air blower 8; can carry out the effect of current-limiting through returning the dry air that type pipe 12 will reach and blow off in 8 blast pipes of air-blower, avoid dry air to spout too fast, and then lead to the mixing time between dry air and the liquid oxygen short excessively, thereby cause the poor problem of mixed effect, through the dry air that four annular array distribute 13 can be even with returning the type pipe 12 in the dry air discharge into mixing box 1, increase dry air and liquid oxygen's area of contact, promote the mixed effect between the two.

The inner wall of the mixing box 1 is fixedly connected with two sieve plates 16, the two sieve plates 16 are both positioned right above the stirring paddle 11, air vent structures for discharging mixed gas are arranged in the two sieve plates 16, and the air vents are provided with a plurality of groups; through two 16 fixed connection of sieve that set up the multiunit bleeder vent on 1 inner wall of mixing box and two sieve 16 all are located the setting directly over stirring rake 11, can stop the air of ascending loss in mixing box 1 again and liquid oxygen, increase mixing time between the two to reinforcing mixing effect between the two.

As shown in fig. 1, fig. 3 and fig. 5, the inner wall of the exhaust pipe 2 is symmetrically and fixedly connected with two limiting blocks 17, the opposite sides of the two limiting blocks 17 are in limiting rotary connection with rotating rollers 18, the outer side surfaces of the rotating rollers 18 are fixedly connected with baffle plates 19, and the baffle plates 19 are provided with four baffle plates 19 which are distributed in an annular array by taking the rotating rollers 18 as the circle center; through the setting of the baffle 19 that four annular array of the spacing live-rollers 18 of rotating connection and the live-rollers 18 outside fixed connection of two stopper 17 opposite side distribute, can receive the impact of air current when the gas mixture erupts in a large number outwards, four baffle 19 in the live-rollers 18 outside begin to overturn and drive live-rollers 18 and rotate in two stopper 17, under the continuous upset of four baffle 19, can stir the gas mixture, thereby promote the mixed effect of evaporimeter to the gas mixture once more.

As shown in fig. 1, 2, 4 and 6, the outer sides of the top ends of the four gas-guide tubes 13 are symmetrically and fixedly connected with supporting blocks 20, one ends of the supporting blocks 20 opposite to the gas-guide tubes 13 are fixedly connected with diffusion covers 14, and the diffusion covers 14 are hollow cones without bottoms; the shape of setting and diffusion lid 14 through 13 top diffusion lids of air duct is bottomless hollow cone, can be when dry air is spout from time type pipe 12 and air duct 13, blocks dry air for dry air can only outwards be the circumference diffusion from diffusion lid 14, and then the eruption of the dry air that slows down, has also promoted mixing effect between them when having prolonged dry air and liquid oxygen mixing time.

The spacing block in outside middle part of liquid oxygen jar 6 is connected with spacing ring 22, and the outside fixed connection of spacing ring 22 is in the outside of mixing box 1, and the block through between spacing ring 22 and liquid oxygen jar 6 is connected and the setting in the outside of mixing box 1 of the outside fixed connection of spacing ring 22, can promote the stability of liquid oxygen jar 6 when carrying liquid oxygen in mixing box 1, has strengthened the security of evaporimeter during operation.

As shown in fig. 1, an inclined plate 4 is fixedly connected to the lower surface of the supporting plate one 5, and one end of the inclined plate 4, which is far away from the supporting plate one 5, is fixedly connected to the outer side of the equipment box 3; through 4 both ends of swash plate fixed connection respectively in the setting in the 3 outsides of backup pad 5 lower surfaces and equipment box, can further promote the stability of backup pad 5, and then promote the stability of liquid oxygen jar 6, further promote the security of evaporimeter during operation.

The working principle is as follows: when the utility model is used, firstly, the liquid oxygen is continuously conveyed into the inner lower surface of the mixing box 1 through the fixed connection between the liquid oxygen tank 6 and the air inlet pipe 21 and the structure that the air inlet pipe 21 is communicated and connected with the mixing box 1 is achieved, meanwhile, the air blower 8 is started, the air blowing pipe of the air blower 8 firstly penetrates through the equipment box 3 and is communicated with the return pipe 12 through the threaded connector 15, at the moment, the dry air blown out from the air blower 8 enters the air guide pipes 13 which are distributed in the four annular arrays and are communicated and connected with the upper surface of the equipment box 3 and the lower surface of the mixing box 1 through the upper surface of the return pipe 12 in the equipment box 3 and the lower ends of the four air guide pipes 13 and is sprayed out from the air guide pipes 13, through the arrangement of the diffusion cover 14 at the top end of the air guide pipes 13 and the shape of the diffusion cover 14 is a bottomless hollow cone, when the dry air is sprayed out from the air guide pipes 13, block dry air for dry air can only outwards be the circumference diffusion from diffusion lid 14 in, and then the eruption of the dry air who slows down avoids the air loss, has also promoted mixing effect between them when having prolonged dry air and liquid oxygen mixing time.

When gas was too much in mixing box 1, gas began upwards loss, set up directly over 16 fixed connection of sieve and two sieves 16 all lie in stirring rake 11 on mixing box 1 inner wall through two sieve that set up the multiunit bleeder vent this moment, can block the air and the liquid oxygen of upwards loss in mixing box 1 once more, increase mixing time between the two to reinforcing mixing effect between the two.

When the air of loss escaped from the bleeder vent in two sieve 16, the setting of the baffle 19 that connects four annular array distributions through the spacing rotation of two stopper 17 opposite sides live-rollers 18 and live-rollers 18 outside fixed connection, can be when the bulk sum erupts outward, receive the impact of air current, four baffles 19 in the live-rollers 18 outside begin to overturn and drive live-rollers 18 and rotate in two stopper 17, under the continuous upset of four baffles 19, can stir the gas mixture, thereby promote the mixed effect of evaporimeter to the gas mixture once more.

Claims

1. A mixed injection evaporator for liquid oxygen production comprises a mixing box (1) for mixing liquid oxygen and dry air, and is characterized in that an exhaust pipe (2) is connected to the upper surface of the mixing box (1) in a penetrating manner, an equipment box (3) is fixedly connected to the lower surface of the mixing box (1), a first supporting plate (5) is fixedly connected to the outer side of the mixing box (1), a liquid oxygen tank (6) is arranged on the upper surface of the first supporting plate (5), an air inlet pipe (21) is connected to an air outlet of the liquid oxygen tank (6), the other end of the air inlet pipe (21) is connected to the outer side of the mixing box (1) in a penetrating manner, a second supporting plate (7) is fixedly connected to one side, opposite to the first supporting plate (5), of the equipment box (3), an air blower (8) is arranged on the upper surface of the second supporting plate (7), a blowing pipe of the air blower (8) is connected to the outer side of the equipment box (3) in a penetrating manner, and a motor (9) is fixedly connected to the inner lower surface of the equipment box (3), the end part of an output shaft of the motor (9) is connected with a connecting shaft (10), and the connecting shaft (10) is in limit penetrating connection with the lower surface of the mixing box (1) and the upper surface of the equipment box (3) and is fixedly connected with a stirring paddle (11).

2. The mixed injection evaporator for liquid oxygen production according to claim 1, wherein the upper surface in the equipment box (3) is connected with four air guide pipes (13) in a penetrating manner, the four air guide pipes (13) are distributed in an annular array by taking the connecting shaft (10) as a circle center, one ends of the four air guide pipes (13) penetrating through the equipment box (3) extend upwards and are connected with the lower surface of the mixing box (1) in a penetrating manner, the lower ends of the four air guide pipes (13) are connected with the return pipe (12) in a penetrating manner, one side of the return pipe (12) is connected with the threaded connector (15) in a penetrating manner, and one side of the threaded connector (15) far away from the return pipe (12) is in threaded connection with the blowing pipe of the blower (8).

3. The mixing and spraying evaporator for liquid oxygen production according to claim 1 or 2, wherein the inner wall of the mixing box (1) is fixedly connected with two sieve plates (16), the two sieve plates (16) are both positioned right above the stirring paddle (11), air vent structures for discharging mixed gas are respectively arranged in the two sieve plates (16), and the air vents are provided with a plurality of groups.

4. The mixed injection evaporator for liquid oxygen production according to claim 1 or 2, wherein the exhaust pipe (2) has two symmetrical and fixed connection limiting blocks (17) on the inner wall, the two limiting blocks (17) are connected to the opposite sides of the two limiting blocks (17) in a limiting and rotating manner, the rotating rollers (18) are connected to the opposite sides of the two limiting blocks in a limiting and rotating manner, the outer side surfaces of the rotating rollers (18) are fixedly connected with four baffles (19), and the four baffles (19) are distributed in an annular array by taking the rotating rollers (18) as the center of a circle.

5. The mixing and spraying evaporator for liquid oxygen production according to claim 4, characterized in that the outer sides of the top ends of the four gas-guide tubes (13) are symmetrically and fixedly connected with supporting blocks (20), one ends of the supporting blocks (20) opposite to the gas-guide tubes (13) are fixedly connected with diffusion covers (14), and the diffusion covers (14) are bottomless hollow cones.

6. The mixing and injecting evaporator for liquid oxygen production as claimed in claim 5, wherein the limiting ring (22) is connected to the middle part of the outer side of the liquid oxygen tank (6) in a limiting and clamping manner, and the outer side of the limiting ring (22) is fixedly connected to the outer side of the mixing box (1).

7. The mixing and injecting evaporator for liquid oxygen production according to claim 5, wherein the lower surface of the first supporting plate (5) is fixedly connected with an inclined plate (4), and one end of the inclined plate (4) far away from the first supporting plate (5) is fixedly connected to the outer side of the equipment box (3).