CN219058562U - Refined ammonia water cooler with double-station valve - Google Patents

Abstract

The utility model discloses a refined ammonia water cooler with a double-station valve, which relates to the field of cooling equipment, and aims to solve the technical problems that a primary cooling system of an ammonia absorption tower of the existing refining regeneration system does not meet the use requirement and the ammonia absorption efficiency is low.

Description

Refined ammonia water cooler with double-station valve

Technical Field

The utility model belongs to the field of cooling equipment, and particularly relates to a refined ammonia water cooler with a double-station valve.

Background

The ammonia absorption tower of the refining regeneration system is one of devices for preparing liquid ammonia products, is mainly used for absorbing ammonia generated in the refining process, can form ammonia water to be reused for synthesizing ammonia products, has high temperature when the ammonia water is discharged, also causes high heat of the ammonia water when the ammonia water is absorbed, has high volatility, and continuously generates ammonia gas when absorbing the ammonia water, thereby being unfavorable for the absorption of the ammonia gas.

The ammonia water of the ammonia absorption tower of the refining regeneration system in the original design is only cooled at one stage, because the water cooling design is smaller, the temperature of the circulating ammonia water is high, the secondary absorption effect of the ammonia absorption tower is poor, the ammonia content of the regenerated gas outlet is high (1.0 mg/L), and the regenerated gas is recovered at the static decoking inlet, so that the ammonia content in the coal gas is high, the ammonia content of the desulfurization circulating water is high, the sulfur carried by a compressor is serious, and the operation period of the compressor is influenced.

Therefore, aiming at the situation that the primary cooling system of the ammonia absorption tower of the refining regeneration system does not meet the use requirement and the ammonia absorption efficiency is low, a double-station valve ammonia water cooler is developed, the multi-stage cooling is utilized, the absorption effect of the ammonia is improved, and the ammonia content of a regenerated gas outlet is reduced.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a refined ammonia water cooler with a double-station valve, which aims to solve the technical problems that a primary cooling system of an ammonia absorption tower of the existing refining regeneration system does not meet the use requirement and the ammonia absorption efficiency is low.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a refined ammonia water cooler with a double-station valve, which comprises a primary cooling cavity, an ammonia storage cavity arranged on the inner side of the primary cooling cavity, a secondary cooling cavity arranged below the primary cooling cavity, and an ammonia storage cavity arranged on the inner side of the secondary cooling cavity, wherein a communicating pipe connected with the ammonia storage cavity is arranged at the lower end of the primary cooling cavity, a communicating port is arranged at the upper end of the secondary cooling cavity, the communicating pipe is arranged on the inner side of the communicating port, a deflation port is arranged at the front side of the upper end of the ammonia storage cavity, and a deflation valve is arranged at the front side of the upper end of the secondary cooling cavity and is communicated with the deflation port.

When the refined ammonia water cooler with the double-station valve is used, an air inlet valve is opened by a user, gas for preparing mixed ammonia generated by liquid ammonia is led into an ammonia storage cavity, the water cooler is started simultaneously, prepared cold water is led into a primary cooling cavity through a straight-through pipeline, ammonia in the ammonia storage cavity is cooled by cold water, meanwhile, external industrial water is led into the ammonia storage cavity from a water inlet, the water inlet is closed, after a period of time, an air outlet valve is opened, cooled ammonia enters the ammonia storage cavity through the air inlet, ammonia is absorbed by internal water to form ammonia, an intermediate valve is opened simultaneously, cooling water enters a secondary cooling cavity through a branch pipeline, the ammonia in the ammonia storage cavity is cooled, volatilization is avoided, and then a deflation valve is opened, so that mixed air from which the ammonia is removed is discharged.

Further, the right side of the second-stage cooling cavity is provided with a water cooler, a through pipeline is arranged at the upper end of the water cooler, a first sealing sleeve is arranged at the left end of the through pipeline, a first butt joint opening is formed in the right end of the first-stage cooling cavity, the first sealing sleeve is arranged on the outer side of the first butt joint opening, cold water prepared by the water cooler is introduced into the first-stage cooling cavity through the through pipeline, heat transfer is carried out through the outer wall of the ammonia storage cavity, and the heat of the internal high-temperature gas is absorbed.

Further, no. two butt joints mouth has been seted up to second grade cooling chamber right-hand member, no. two sealing sleeve is installed to No. two butt joints mouths outsides, no. two sealing sleeve with be connected with the bleeder line between the straight-through pipeline, the bleeder line with the intermediate valve is installed to the tie point of straight-through pipeline, opens the intermediate valve after, makes the cooling water introduce the second grade cooling chamber through the bleeder line, carries out heat transfer through the outer wall of aqueous ammonia storage chamber, further absorbs the heat of inside high Wen Anshui.

Further, the upper end and the lower end of the primary cooling cavity are provided with through holes, the upper end of the ammonia storage cavity is provided with an end disc matched with the through holes, the lower end of the ammonia storage cavity is provided with a tail disc matched with the through holes, the end disc and the tail disc are identical in structure, and air passages communicated with the ammonia storage cavity are formed in the ammonia storage cavity and used for entering and exiting mixed gas.

Further, the air inlet valve connected with ammonia generating equipment is installed to end dish upper end, the air outlet valve is installed to tail end dish lower extreme, the air inlet has been seted up in the middle of the aqueous ammonia storage chamber upper end, the air outlet valve bottom install in the air inlet is inboard, and air inlet valve and air outlet valve switch are opened and close, open the air inlet valve after, the production tail gas of mixed ammonia gets into the ammonia storage chamber, after the cooling, opens the air outlet valve, discharges mixed gas.

Further, the liquid level meter is installed at the rear side of the upper end of the secondary cooling cavity, the penetrating hole matched with the liquid level meter is formed in the right side of the upper end of the ammonia water storage cavity, the bottom end of the liquid level meter is arranged on the inner side of the penetrating hole, the liquid level meter is used for detecting the height of liquid in the ammonia water storage cavity, and the process of introducing clean water and generating ammonia water is controlled.

Further, the water inlet with the sealing baffle cover is formed in the front end of the secondary cooling cavity, the front end opening structure of the ammonia water storage cavity is arranged on the inner side of the water inlet, the water inlet is used for introducing reclaimed water for industrial production into the ammonia water storage cavity, the water inlet is closed in the process of absorbing ammonia gas, and the air release valve is opened to discharge residual air after absorbing the ammonia gas.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the refined ammonia water cooler with the double-station valve, disclosed by the utility model, a secondary continuous cooling system for ammonia cooling and ammonia water cooling is adopted, so that the cooling efficiency of the temperatures of ammonia and ammonia water is greatly improved; the ammonia content in the discharged regenerated gas is reduced, so that the ammonia content of the desulfurization circulating water is reduced, the probability of precipitation of elemental sulfur in the cleaning tower is reduced, the sulfur carried by the compressor is finally reduced, and the operation stability of ammonia absorption equipment is improved.

Drawings

FIG. 1 is a schematic diagram of an assembled structure of a particular embodiment of a refined ammonia water cooler of a double-station valve of the present utility model;

FIG. 2 is a schematic diagram of the installation structure of a primary cooling cavity and an ammonia storage cavity of a refined ammonia water cooler embodiment of a double-station valve of the utility model;

FIG. 3 is a schematic diagram of the installation structure of the secondary cooling cavity and the ammonia water storage cavity of the refined ammonia water cooler with the double-station valve.

The marks in the drawings are: 1. a primary cooling chamber; 2. an ammonia storage chamber; 3. a communicating pipe; 4. a secondary cooling chamber; 5. a contact port; 6. an ammonia water storage cavity; 7. a vent port; 8. a bleed valve; 9. a water cooler; 10. a straight-through pipeline; 11. a first sealing sleeve; 12. a first butt joint port; 13. a second interface; 14. a second sealing sleeve; 15. a branch pipeline; 16. an intermediate valve; 17. a through port; 18. an end disc; 19. a tail end disc; 20. an intake valve; 21. an air outlet valve; 22. an air inlet; 23. a liquid level gauge; 24. penetrating the jack; 25. and a water inlet.

Detailed Description

This embodiment is a refined aqueous ammonia water cooler for duplex valve, and its package structure schematic diagram is shown in fig. 1, and first-level cooling chamber 1 and ammonia storage chamber 2 mounting structure schematic diagram is shown in fig. 2, and second-level cooling chamber 4 and ammonia storage chamber 6 mounting structure schematic diagram is shown in fig. 3, and this aqueous ammonia water cooler includes first-level cooling chamber 1, install in the ammonia storage chamber 2 of first-level cooling chamber 1 inboard, set up in second-level cooling chamber 4 of first-level cooling chamber 1 below, install in the ammonia storage chamber 6 of second-level cooling chamber 4 inboard, first-level cooling chamber 1 lower extreme install with communicating pipe 3 that ammonia storage chamber 2 is connected, connecting port 5 has been seted up to second-level cooling chamber 4 upper end, communicating pipe 3 set up in connecting port 5 inboard, air release port 7 has been seted up to ammonia storage chamber 6 upper end front side, air release valve 8 is installed to second-level cooling chamber 4 upper end front side, air release valve 8 with air release port 7 is linked together.

For this specific embodiment, the water cooler 9 includes a heat exchanger, a compressor, a coolant pipeline, a circulating water tank, and other devices, and the heat of the water in the water tank is absorbed by the compressor in the refrigerator and the coolant circulating in the coolant pipeline, so as to achieve the effect of preparing cold water, and then the cold water is pumped into the primary cooling cavity 1 and the secondary cooling cavity 4 to cool ammonia and ammonia water respectively.

The right side of the secondary cooling cavity 4 is provided with a water cooler 9, a straight-through pipeline 10 is installed at the upper end of the water cooler 9, a first sealing sleeve 11 is installed at the left end of the straight-through pipeline 10, a first butt joint 12 is formed at the right end of the primary cooling cavity 1, the first sealing sleeve 11 is installed at the outer side of the first butt joint 12, a second butt joint 13 is formed at the right end of the secondary cooling cavity 4, a second sealing sleeve 14 is installed at the outer side of the second butt joint 13, a branch pipeline 15 is connected between the second sealing sleeve 14 and the straight-through pipeline 10, an intermediate valve 16 is installed at a connecting point of the branch pipeline 15 and the straight-through pipeline 10, cold water prepared by the water cooler 9 is introduced into the primary cooling cavity 1 through the straight-through pipeline 10, heat transfer is carried out through the outer wall of the ammonia storage cavity 2, internal high-temperature heat is absorbed, cooling water is introduced into the secondary cooling cavity 4 through the branch pipeline 15 after the intermediate valve 16 is opened, heat transfer is carried out through the outer wall of the ammonia storage cavity 6, and the internal high-temperature Wen Anshui is further absorbed through the outer wall of the ammonia storage cavity 6.

Simultaneously, the upper and lower both ends of one-level cooling chamber 1 have all seted up through-hole 17, ammonia storage chamber 2 upper end install with the end dish 18 of through-hole 17 adaptation, ammonia storage chamber 2 lower extreme install with the tail end dish 19 of through-hole 17 adaptation, the admission valve 20 that is connected with ammonia generating equipment is installed to end dish 18 upper end, the air outlet valve 21 is installed to tail end dish 19 lower extreme, air inlet 22 has been seted up in the middle of ammonia water storage chamber 6 upper end, air outlet valve 21 bottom install in air inlet 22 inboard, end dish 18 and tail end dish 19 structure are the same, and the air flue that link up with ammonia storage chamber 2 has all been seted up to inside for business turn over mixed gas, and admission valve 20 and air outlet valve 21 switch to open and close, and after opening admission valve 20, the production tail gas of mixed ammonia gets into ammonia storage chamber 2, after cooling, opens air outlet valve 21, discharges mixed gas.

In addition, the level gauge 23 is installed to second grade cooling chamber 4 upper end rear side, the right side of ammonia water storage chamber 6 upper end seted up with the interlude hole 24 of level gauge 23 adaptation, the level gauge 23 bottom set up in interlude hole 24 is inboard, the water inlet 25 that has sealed shielding lid is seted up to second grade cooling chamber 4 front end, the front end opening structure in ammonia water storage chamber 6 set up in water inlet 25 is inboard, level gauge 23 is used for detecting the height of liquid in the ammonia water storage chamber 6, controls the process of introducing clean water and generating ammonia water, and water inlet 25 is used for introducing the normal water for industrial production into ammonia water storage chamber 6, and the in-process of absorbing ammonia is closed water inlet 25, opens bleed valve 8, will absorb the residual air after the ammonia and discharge.

When the refined ammonia water cooler with the double-station valve is used, an air inlet valve 20 is opened by a user, mixed ammonia gas generated by preparing liquid ammonia is led into an ammonia storage cavity 2, a water cooler 9 is started simultaneously, prepared cold water is led into a primary cooling cavity 1 through a through pipeline 10, ammonia gas in the ammonia storage cavity 2 is cooled by the cold water, meanwhile, external industrial water is led into an ammonia water storage cavity 6 from a water inlet 25, the water inlet 25 is closed, after a period of time, an air outlet valve 21 is opened, cooled ammonia gas enters the ammonia water storage cavity 6 through an air inlet 22, ammonia gas is absorbed by the internal water and forms ammonia water, an intermediate valve 16 is opened simultaneously, cooling water enters a secondary cooling cavity 4 through a branch pipeline 15, ammonia water in the ammonia water storage cavity 6 is cooled, ammonia water volatilization is avoided, and then an air release valve 8 is opened, so that the mixed air with the ammonia gas discharged is discharged.

Claims (8)

1. The refined ammonia water cooler with the double-station valve comprises a primary cooling cavity, an ammonia storage cavity arranged on the inner side of the primary cooling cavity, a secondary cooling cavity arranged below the primary cooling cavity and an ammonia storage cavity arranged on the inner side of the secondary cooling cavity; the ammonia water storage device is characterized in that a communicating pipe connected with the ammonia storage cavity is arranged at the lower end of the primary cooling cavity, a communication port is formed in the upper end of the secondary cooling cavity, the communicating pipe is arranged on the inner side of the communication port, a deflation port is formed in the front side of the upper end of the ammonia water storage cavity, a deflation valve is arranged on the front side of the upper end of the secondary cooling cavity, and the deflation valve is communicated with the deflation port.

2. The refined ammonia water cooler with the double-station valve according to claim 1, wherein a water cooler is arranged on the right side of the secondary cooling cavity, a straight-through pipeline is arranged at the upper end of the water cooler, and a first sealing sleeve is arranged at the left end of the straight-through pipeline.

3. The refined ammonia water cooler with the double-station valve as claimed in claim 2, wherein a first butt joint is formed at the right end of the primary cooling cavity, and the first sealing sleeve is installed at the outer side of the first butt joint.

4. The refined ammonia water cooler with the double-station valve according to claim 3, wherein a second butt joint opening is formed in the right end of the second cooling cavity, a second sealing sleeve is arranged on the outer side of the second butt joint opening, a branch pipeline is connected between the second sealing sleeve and the straight-through pipeline, and an intermediate valve is arranged at a connection point of the branch pipeline and the straight-through pipeline.

5. The refined ammonia water cooler with the double-station valve as claimed in claim 1, wherein the upper end and the lower end of the primary cooling cavity are provided with through holes, the upper end of the ammonia storage cavity is provided with an end disc matched with the through holes, and the lower end of the ammonia storage cavity is provided with a tail disc matched with the through holes.

6. The refined ammonia water cooler with the double-station valve according to claim 5, wherein an air inlet valve connected with ammonia generating equipment is arranged at the upper end of the end disc, an air outlet valve is arranged at the lower end of the tail disc, an air inlet is arranged in the middle of the upper end of the ammonia water storage cavity, and the bottom end of the air outlet valve is arranged at the inner side of the air inlet.

7. The refined ammonia water cooler with the double-station valve according to claim 1, wherein a liquid level meter is installed at the rear side of the upper end of the secondary cooling cavity, a penetration hole matched with the liquid level meter is formed in the right side of the upper end of the ammonia water storage cavity, and the bottom end of the liquid level meter is arranged on the inner side of the penetration hole.

8. The refined ammonia water cooler with the double-station valve as claimed in claim 1, wherein a water inlet with a sealing blocking cover is formed at the front end of the secondary cooling cavity, and a front end opening structure of the ammonia water storage cavity is arranged at the inner side of the water inlet.

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