CN213841848U - Steam heater anti-steam scouring structure - Google Patents

Abstract

The utility model discloses a steam heater anti-steam erodees structure, go out the vapour passageway including steam heater body, first connection pad, steam input pipe, top head, bottom head, second connection pad, air inlet, gas outlet, steam admission passageway, steam, the beneficial effects of the utility model: the utility model discloses an increase the steam admission passageway of the size of steam input tube and symmetry, both avoided steam to spout perpendicularly by the top and cause direct impact to the tube bank, can make steam evenly distributed prevent the bias flow again, the life of steam heater tube bank has been improved, and steam heater bias flow phenomenon can obviously reduce, can also optimize the regeneration effect of air separation plant purifier, the heat exchange efficiency is improved, save a large amount of steam, and it is more stable when making the air separation plant operation, can play the protection effect when making equipment dismantlement maintain through block mechanism, prevent that the bolt from dismantling the back steam input tube and directly dropping.

Description

Steam heater anti-steam scouring structure

The technical field is as follows:

the utility model belongs to the technical field of steam heater, in particular to steam heater anti-steam erodees structure.

Background art:

the steam heater that current air separation plant clarifier used is shell and tube steam heat exchanger, and its effect is with the palirrhea dirty nitrogen of air separation cold box with low pressure steam and heat, and the dirty nitrogen after the heating regenerates the clarifier.

And the existing air separation plant purifier uses a steam heater, utilizes the existing low-pressure steam pipe network, generally more than 1.3MPa steam, and the steam vertically enters a heat exchanger top end socket from the top when entering the shell and tube steam heat exchanger. The tube side is walked to steam, and steam directly gets into by the top, causes direct impact to middle local tube bank to also produce certain steam bias flow phenomenon, cause heat exchanger tube bank life-span greatly reduced, the damaged leakage of tube bank causes certain risk to empty operation, and the heat exchanger tube bank frequently changes and leaks the start-stop cost greatly increased who causes because of leaking in the tube bank.

The invention content is as follows:

the utility model aims at providing a steam heater anti-steam erodees structure in order to solve above-mentioned problem, has solved the shortcoming that current equipment exists.

In order to solve the above problem, the utility model provides a technical scheme:

a steam scouring preventing structure of a steam heater comprises a steam heater body, a first connecting disc, a steam input pipe, a top end socket, a bottom end socket, a second connecting disc, an air inlet, an air outlet, a steam inlet channel and a steam outlet channel, wherein the first connecting disc is fixedly connected to the top of the steam heater body and the bottom of the top of the steam heater body, the steam input pipe is arranged at the top of the steam heater body, the top end socket is fixedly connected to the top of the steam input pipe, the bottom end socket is arranged at the bottom of the steam heater body, the second connecting disc is fixedly connected to the bottom of the steam input pipe and the top of the bottom end socket, the air inlet is arranged above one side of the steam heater body, the air outlet is arranged below one side of the steam heater body, which is far away from the air inlet, the steam inlet channel is symmetrically arranged on the outer side of the steam input pipe, and a steam outlet channel is formed at the bottom of the bottom end enclosure.

As preferred, the inside of first connecting disk is equipped with block mechanism, block mechanism includes ring channel, slip ring, unlocking groove, unlocking lever, spacing piece, spring groove, ejector pad, thrust spring, draw-in groove, round pin piece, the inside of first connecting disk is excavated there is the ring channel, sliding connection has the slip ring in the ring channel, the outside of first connecting disk is excavated there is unlocking groove, the outside of slip ring just is located unlocking groove's inside fixedly connected with unlocking lever, unlocking lever keeps away from the one end fixedly connected with spacing piece of slip ring, the inside of first connecting disk is excavated there is the spring groove, the inboard of slip ring just is located the inside fixedly connected with ejector pad in spring groove, the inside of spring groove is fixed and is equipped with thrust spring, one side and ejector pad fixed connection of thrust spring.

Preferably, four clamping grooves are formed in the top of the first connecting disc at equal intervals, the inner side of the sliding ring is fixedly connected with pin blocks corresponding to the clamping grooves, and the pin blocks are connected with the clamping grooves in a sliding mode.

Preferably, the four clamping blocks are fixedly connected to the second connecting disc at equal intervals, and the second connecting disc is connected with the first connecting disc in a clamping mode through the clamping blocks.

Preferably, the size of the fixture block is matched with that of the clamping groove, one end of the bottom of the pin block is of a slope-shaped structure, and an included angle of thirty degrees is formed between one end of the bottom of the fixture block and the horizontal plane.

Preferably, an air duct is fixedly installed inside the steam heater body, and the air inlet is communicated with the air outlet through the air duct.

Preferably, the steam input pipe is made of 304 stainless steel, and the outside of the steam input pipe is coated with anticorrosive and thermal insulation paint.

Preferably, the steam input pipe is larger than the top head in size.

The utility model has the advantages that:

the utility model discloses an increase the steam admission passageway of the size of steam input tube and symmetry, both avoided steam to spout perpendicularly by the top and cause direct impact to the tube bank, can make steam evenly distributed prevent the bias flow again, the life of steam heater tube bank has been improved, and steam heater bias flow phenomenon can obviously reduce, can also optimize the regeneration effect of air separation plant purifier, the heat exchange efficiency is improved, save a large amount of steam, and it is more stable when making the air separation plant operation, can play the protection effect when making equipment dismantlement maintain through block mechanism, prevent that the bolt from dismantling the back steam input tube and directly dropping.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

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

fig. 2 is a schematic view of the internal structure of the first connection plate of the present invention;

fig. 3 is a side view of a second connection pad of the present invention;

fig. 4 is a schematic structural diagram of the pin block of the present invention.

In the figure: the steam heating device comprises a steam heater body 1, a first connecting disc 2, a steam input pipe 3, a top end enclosure 4, a bottom end enclosure 5, a second connecting disc 6, a gas inlet 7, a gas outlet 8, a steam inlet channel 9, a steam outlet channel 10, a clamping mechanism 11, an annular groove 111, a sliding ring 112, an unlocking groove 113, an unlocking rod 114, a limiting sheet 115, a spring groove 116, a push block 117, a push block 118, a thrust spring 119, a clamping groove 1110, a pin block 12.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: a steam scouring preventing structure of a steam heater comprises a steam heater body 1, a first connecting disc 2, a steam input pipe 3, a top end enclosure 4, a bottom end enclosure 5, a second connecting disc 6, an air inlet 7, an air outlet 8, a steam inlet channel 9 and a steam outlet channel 10, wherein the bottom of the top of the steam heater body 1 is fixedly connected with the first connecting disc 2, the top of the steam heater body 1 is provided with the steam input pipe 3, the top of the steam input pipe 3 is fixedly connected with the top end enclosure 4, the bottom of the steam heater body 1 is provided with the bottom end enclosure 5, the bottom of the steam input pipe 3 and the top of the bottom end enclosure 5 are fixedly connected with the second connecting disc 6, the air inlet 7 is arranged above one side of the steam heater body 1, the air outlet 8 is arranged below one side of the steam heater body 1, which is far away from the air inlet 7, the steam inlet channel 9 is symmetrically arranged outside the steam input pipe 3, the bottom of the bottom end enclosure 5 is provided with a steam outlet channel 10, and the symmetrical steam inlet channels 9 prevent steam from being vertically sprayed from the top to cause direct impact on the tube bundle, and also can ensure that the steam is uniformly distributed to prevent bias flow, thereby improving the heat exchange effect.

Wherein, the inside of the first connecting disc 2 is provided with a clamping mechanism 11, the clamping mechanism 11 comprises an annular groove 111, a sliding ring 112, an unlocking groove 113, an unlocking rod 114, a limiting piece 115, a spring groove 116, a pushing block 117, a thrust spring 118, a clamping groove 119 and a pin block 1110, the inside of the first connecting disc 2 is provided with the annular groove 111, the annular groove 111 is connected with the sliding ring 112 in a sliding way, the outside of the first connecting disc 2 is provided with the unlocking groove 113, the outside of the sliding ring 112 is provided with the unlocking rod 114 which is fixedly connected with the inside of the unlocking groove 113, one end of the unlocking rod 114 far away from the sliding ring 112 is fixedly connected with the limiting piece 115, the inside of the first connecting disc 2 is provided with the spring groove 116, the inside of the sliding ring 112 is fixedly connected with the pushing block 117 which is arranged inside of the spring groove 116, the thrust spring 118 is fixedly arranged inside of the spring groove 116, one side of the thrust spring 118 is fixedly connected with the pushing block 117, and the top end socket and the bottom socket can be mounted and dismounted conveniently by the clamping mechanism 11 in a time-saving and labor-saving way, thereby better maintaining the clearance to inside pipe wall.

Four clamping grooves 119 are cut in the top of the first connecting disc 2 at equal intervals, a pin block 1110 is fixedly connected to the inner side of the sliding ring 112 and the position corresponding to the clamping groove 119, and the pin block 1110 is slidably connected with the clamping grooves 119.

Wherein, the equidistance fixedly connected with four fixture blocks 12 of second connection pad 6, second connection pad 6 passes through fixture block 12 and is connected with the block of first connection pad 2.

The size of the fixture block 12 is matched with the slot 119, one end of the bottom of the pin block 1110 is of a slope-shaped structure, and an included angle of thirty degrees is formed between one end of the bottom of the fixture block 12 and the horizontal plane, so that the fixture block 12 is better limited.

Wherein, the inside fixed mounting of steam heater body 1 has the air duct, and air inlet 7 is linked together through air duct and gas outlet 8.

Wherein, the steam input pipe 3 is made of 304 stainless steel, and the outer part is coated with anti-corrosion and thermal insulation coating, thereby being convenient for prolonging the service life of the equipment.

Wherein, the size of steam input pipe 3 is greater than top head 4, is convenient for optimize the regeneration effect of air separation plant purifier, has effectively improved air separation plant operating stability, has reduced air separation plant's running cost.

Specifically, when in use, the method comprises the following steps:

s1, mounting equipment: firstly, aligning a steam input pipe 3 with a steam heater body 1, aligning a fixture block 12 at the bottom of a second connecting disc 6 with a clamping groove 119 at the top of a first connecting disc 2, when the fixture block 12 is inserted into the clamping groove 119, enabling a pin block 1110 to slide anticlockwise, when the fixture block 12 is inserted into the bottom of the clamping groove 119, pushing a push block 117 to drive a sliding ring 112 to slide, and accordingly enabling the pin block 1110 to restore to the original position so as to limit the top of the fixture block 12 and prevent the fixture block 12 from displacing, and then further reinforcing the first connecting disc 2 through bolts;

s2, steam heat exchange: high-temperature low-pressure steam is input into the equipment from two steam inlet channels 9 at two sides of a steam input pipe 3 through external steam equipment, the high-temperature low-pressure steam enters the steam heater body 1 and flows out from a steam outlet channel 10 to heat an air vent pipeline in the steam heater body 1, meanwhile, dirty nitrogen flowing back from a low-temperature air separation cold box enters the air vent pipeline from an air inlet 7 and flows out from an air outlet 8, and the air vent pipeline continuously operates to continuously exchange heat with the high-temperature low-pressure steam;

s3, disassembling and maintaining: when the steam heater body 1 needs to be maintained and cleaned, steam input is stopped, the device is cooled, then the reinforcing bolt on the first connecting disc 2 is screwed down, the unlocking rod 114 is pushed, the unlocking rod 114 drives the sliding ring 112 to rotate anticlockwise so that the pin block 1110 is separated from the fixture block 12, the fixture block 12 is unlocked, then the steam input pipe 3 is taken down, and maintenance and cleaning can be carried out on the inside of the device.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a steam heater anti-steam erodees structure, includes steam heater body, first connection pad, steam input pipe, top head, bottom head, second connection pad, air inlet, gas outlet, steam admission passageway, steam play steam passageway, its characterized in that: the steam heater comprises a steam heater body and is characterized in that a first connecting disc is fixedly connected to the top of the steam heater body, a steam input pipe is arranged at the top of the steam heater body, a top end socket is fixedly connected to the top of the steam input pipe, a bottom end socket is arranged at the bottom of the steam heater body, a second connecting disc is fixedly connected to the bottom of the steam input pipe and the top of the bottom end socket, an air inlet is formed in the upper portion of one side of the steam heater body, an air outlet is formed in the lower portion, far away from one side of the air inlet, of the steam heater body, a steam inlet channel is symmetrically formed in the outer side of the steam input pipe, and a steam outlet channel is formed in the bottom of the bottom end socket.

2. The steam scouring prevention structure of a steam heater according to claim 1, wherein: the inside of first connecting disc is equipped with block mechanism, block mechanism includes ring channel, slip ring, unlocking groove, unlocking lever, spacing piece, spring groove, ejector pad, thrust spring, draw-in groove, round pin piece, the inside of first connecting disc is excavated there is the ring channel, sliding connection has the slip ring in the ring channel, the outside of first connecting disc is excavated there is unlocking groove, the outside of slip ring just is located unlocking groove's inside fixedly connected with unlocking lever, unlocking lever keeps away from the one end fixedly connected with spacing piece of slip ring, the inside of first connecting disc is excavated there is the spring groove, the inboard of slip ring just is located the inside fixedly connected with ejector pad in spring groove, the inside of spring groove is fixed and is equipped with thrust spring, one side and ejector pad fixed connection of thrust spring.

3. The steam scouring prevention structure of a steam heater according to claim 2, wherein: four draw-in grooves are dug to the top equidistance of first flange, the inboard of slip ring just with the corresponding position fixedly connected with round pin piece of draw-in groove, round pin piece and draw-in groove sliding connection.

4. A steam heater steam scouring prevention structure as claimed in claim 3, wherein: the four fixture blocks of equidistance fixedly connected with of second connection pad, the second connection pad passes through the fixture block and is connected with first connection pad block.

5. The steam scouring prevention structure of a steam heater according to claim 4, wherein: the size of the clamping block is matched with that of the clamping groove, one end of the bottom of the pin block is of a slope-shaped structure, and an included angle of thirty degrees is formed between one end of the bottom of the clamping block and the horizontal plane.

6. The steam scouring prevention structure of a steam heater according to claim 2, wherein: and an air duct is fixedly arranged in the steam heater body, and the air inlet is communicated with the air outlet through the air duct.

7. The steam scouring prevention structure of a steam heater according to claim 1, wherein: the steam input pipe is made of 304 stainless steel, and the outside of the steam input pipe is coated with anticorrosive heat-insulating paint.

8. The steam scouring prevention structure of a steam heater according to claim 1, wherein: the size of the steam input pipe is larger than that of the top seal head.

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