CN202366515U

CN202366515U - Settlement and blowdown device of reboiler

Info

Publication number: CN202366515U
Application number: CN2011204655894U
Authority: CN
Inventors: 孟飞; 杨以威
Original assignee: SHANXI SHUAIKE CHEMICAL DESIGN CO Ltd
Current assignee: Shanxi Fan Jing Environmental Protection Engineering Co., Ltd.
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-08-08
Anticipated expiration: 2021-11-22

Abstract

The utility model relates to a settlement and blowdown device of a reboiler, belongs to the technical field of distilled ammonia reboilers, and aims to provide equipment capable of separating and discharging settling matters in distilled ammonia wastewater from the reboiler. The settlement and blowdown device adopts the technical scheme that a lower pipe plate and a lower casing form a water storage chamber; and at least one drain outlet is formed at the bottom of the water storage device. Part of settling matters in distilled ammonia wastewater flows into the water storage chamber, then settle, and finally are discharged from the drain outlet at the bottom of the water storage chamber, distilled ammonia wastewater can be used as a water source generating vapor, and the discharge amount of pollutants is effectively reduced.

Description

The sedimentation blowdown apparatus of reboiler

Technical field

The sedimentation blowdown apparatus of the utility model reboiler belongs to ammonia still process reboiler technical field.

Background technology

At present traditional ammonia still process reboiler gets into the thermal deaerator deoxygenation with industrial demineralized water through softened water pump; A deaerated water part gets into from the drum water inlet after importing the preheating of heat pipe soft water preheater by feed pump; Water connects moderate temperature heat pipe steam generator water inlet through down-comer, and water absorbs heat therein and becomes saturation water, and the saturation water tedge in heat pipe steam generator again connects the heat pipe steam generator delivery port; Connect drum saturation water inlet then and get into drum; In drum, carry out steam and separate, form saturated vapor, steam is used for post bake ammonia still process.

Traditional ammonia still process reboiler can only use industrial demineralized water because it makes the restriction of raw material and structure thereof, makes the distilled ammonia wastewater of from ammonia still, discharging, and can't effectively utilize distilled ammonia wastewater.

Summary of the invention

The utility model overcomes the deficiency of prior art, and technical problem to be solved is that a kind of equipment that can the precipitum in the distilled ammonia wastewater be separated and discharge reboiler is provided.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:

The sedimentation blowdown apparatus of reboiler comprises upper shell, lower house, upper perforated plate, lower perforated plate, circulation down-comer and Duo Gen evaporation tube; Said many evaporation tubes vertically are installed between upper perforated plate and the lower perforated plate, and a side of said many evaporation tubes is provided with gas approach, are provided with exhanst gas outlet at the opposite side of many evaporation tubes;

Said upper perforated plate and upper shell are formed vapor-liquid separation chamber, and the top of vapor-liquid separation chamber is provided with a plurality of steam (vapor) outlets, and the side of vapor-liquid separation chamber is provided with water inlet, and the middle part, another side of vapor-liquid separation chamber is provided with overfall;

Be provided with at least one circulation down-comer in the bottom of said vapor-liquid separation chamber, the lower end of circulation down-comer connects reservoir chamber; Said lower perforated plate and lower house are formed reservoir chamber, and the bottom of reservoir chamber is provided with at least one sewage draining exit.

The said evaporation tube radial direction multilayer fin that is arranged in parallel.

The beneficial effect that the utility model is compared with prior art had is: the sedimentation after flowing into reservoir chamber of the part precipitum in the distilled ammonia wastewater in the utility model; Then precipitum is got rid of from the bottom blow-down mouth; Can utilize distilled ammonia wastewater as the water source that produces steam, and effectively reduce the discharge capacity of pollutant.

Description of drawings

Fig. 1 is the structural representation of the utility model coke oven flue gas waste heat ammonia still process reboiler.

Fig. 2 is the right view of Fig. 1.

1 is that upper shell, 2 is that lower house, 3 is that upper perforated plate, 4 is that lower perforated plate, 5 is that circulation down-comer, 6 is that evaporation tube, 7 is that gas approach, 8 is that exhanst gas outlet, 9 is that vapor-liquid separation chamber, 10 is that reservoir chamber, 11 is that steam (vapor) outlet, 12 is that water inlet, 13 is that overfall, 14 is a sewage draining exit among the figure.

The specific embodiment

As depicted in figs. 1 and 2, the sedimentation blowdown apparatus of reboiler comprises upper shell 1, lower house 2, upper perforated plate 3, lower perforated plate 4, circulation down-comer 5 and Duo Gen evaporation tube 6; Said many evaporation tubes 6 vertically are installed between upper perforated plate 3 and the lower perforated plate 4, and a side of said many evaporation tubes 6 is provided with gas approach 7, are provided with exhanst gas outlet 8 at the opposite side of many evaporation tubes;

Said upper perforated plate 3 is formed vapor-liquid separation chamber 9 with upper shell 1, and the top of vapor-liquid separation chamber 9 is provided with a plurality of steam (vapor) outlets 11, and the side of vapor-liquid separation chamber 9 is provided with water inlet 12, and the middle part, another side of vapor-liquid separation chamber 9 is provided with overfall 13;

Be provided with at least one circulation down-comer 5 in the bottom of said vapor-liquid separation chamber 9, the lower end of circulation down-comer 5 connects reservoir chamber 10; Said lower perforated plate 4 is formed reservoir chamber 10 with lower house 2, and the bottom of reservoir chamber 10 is provided with at least one sewage draining exit 14.

The evaporation tube 6 radial direction multilayer fin that is arranged in parallel.

Distilled ammonia wastewater gets into the vapor-liquid separation chamber 9 of reboilers from the distilled ammonia wastewater mouth of ammonia still through the water inlet 12 of reboiler, and the distilled ammonia wastewater circulation down-comer 5 of flowing through leans on the vapour-liquid ratio method of double differences to flow into the reservoir chamber 10 of reboiler;

Said distilled ammonia wastewater carries out sedimentation at reservoir chamber 10, and the solid impurity that sedimentation goes out is discharged by a plurality of sewage draining exits 14 of reservoir chamber 10 bottoms, and purifying waste water after the sedimentation gets into the evaporation tube 6 on reservoir chamber 10 tops;

Part is purified waste water and is vaporizated into steam in the said evaporation tube 6, and the liquid-vapor mixture of generation rises and gets into the vapor-liquid separation chamber 9 of reboiler, carries out vapor-liquid separation; Steam after the separation gets into the steam inlet of ammonia still from the steam (vapor) outlet of vapor-liquid separation chamber 9 11 through pipeline, and purifying waste water with after the distilled ammonia wastewater that gets into from water inlet mixes after the separation flows into reservoir chambers by circulation down-comer 5, the like this circulation repeatedly;

Vapor-liquid separation chamber 9 is provided with overfall 13 with water inlet 12 relative opposite sides, is used for stablizing the liquid level of vapor-liquid separation chamber, and being provided with of overfall 13 can be saved liquid level gauge, is used to control the liquid level of vapor-liquid separation chamber 9.

Coke oven flue gas gets into heating clamber from the gas approach 7 of reboiler, heat transferred evaporation tube 6, and purifying waste water in the heating evaporation pipe 6; Make the part vaporization of purifying waste water take away heat; After the temperature of heating clamber inner flue gas reduces, discharge, discharge from chimney to air-introduced machine from exhanst gas outlet 8.

Combine accompanying drawing that the embodiment of the utility model has been done detailed description above, but the present invention is not limited to the foregoing description, in the ken that those of ordinary skills possessed, can also under the prerequisite that does not break away from aim of the present invention, make various variations.

Claims

1. the sedimentation blowdown apparatus of reboiler comprises upper shell (1), lower house (2), upper perforated plate (3), lower perforated plate (4), circulation down-comer (5) and many evaporation tubes (6); Said many evaporation tubes (6) vertically are installed between upper perforated plate (3) and the lower perforated plate (4), and a side of said many evaporation tubes (6) is provided with gas approach (7), are provided with exhanst gas outlet (8) at the opposite side of many evaporation tubes (6);

Said upper perforated plate (3) is formed vapor-liquid separation chamber (9) with upper shell (1); The top of vapor-liquid separation chamber (9) is provided with a plurality of steam (vapor) outlets (11); The side of vapor-liquid separation chamber (9) is provided with water inlet (12), and the middle part, another side of vapor-liquid separation chamber (9) is provided with overfall (13);

Be provided with at least one circulation down-comer (5) in the bottom of said vapor-liquid separation chamber (9), the lower end of circulation down-comer (5) connects reservoir chamber (10); It is characterized in that said lower perforated plate (4) is formed reservoir chamber (10) with lower house (2), the bottom of reservoir chamber (10) is provided with at least one sewage draining exit (14).

2. according to the sedimentation blowdown apparatus of the said reboiler of claim 1, it is characterized in that: said evaporation tube (6) the radial direction multilayer fin that is arranged in parallel.