CN213854574U - Urea hydrolysis reactor with partitioned control - Google Patents
Urea hydrolysis reactor with partitioned control Download PDFInfo
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- CN213854574U CN213854574U CN202022711225.1U CN202022711225U CN213854574U CN 213854574 U CN213854574 U CN 213854574U CN 202022711225 U CN202022711225 U CN 202022711225U CN 213854574 U CN213854574 U CN 213854574U
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- hydrolysis reactor
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Abstract
A urea hydrolysis reactor controlled in a partitioning mode comprises a hydrolysis reactor tank body, wherein a plurality of component partitioning plates used for partitioning the hydrolysis reactor tank body into a plurality of compartments from front to back are arranged in the hydrolysis reactor tank body, and each compartment is provided with a feeding hole, a sewage draining outlet, a liquid level meter interface and a thermometer interface; the bottom in the hydrolysis reactor tank body is provided with a steam coil. Can distinguish urea hydrolysis reactor of control when concrete operation, can be according to the unit under different loads, different NOx concentration, the lobe of different quantity of accurate control to produce required ammonia volume. The utility model discloses can use the accurate system ammonia of solution of different bays according to actual demand, both keep the steam quality unchangeable, the phase change reduces solution volume again, consequently can effectively raise the efficiency.
Description
Technical Field
The utility model belongs to urea solution hydrolysis ammonia production field relates to a urea hydrolysis reactor of zone control.
Background
With the national requirements for the safe operation of the thermal power plant being higher and higher, the thermal power plant gradually adopts urea with higher safety coefficient as a denitration reducing agent to replace liquid ammonia with high danger coefficient, and the change of the reducing agent causes the ammonia production process to be correspondingly changed, so that the urea hydrolysis reactor becomes indispensable necessary equipment.
The capacity of the hydrolysis reactor is designed according to the concentration of NOx to be treated by tail flue gas under the condition that a boiler is 100% BMCR, even some extreme conditions need to be considered, and during actual operation, a thermal power generating unit cannot reach the peak value of the conditions generally or works under a lower load for a long time, so the design output of the hydrolysis reactor is generally far higher than the actual operation condition. If only by adjusting hydrolysis reactor import steam volume or urea solution injection volume, must produce the phenomenon that the steam quality descends, and the reaction of hydrolysising is slow, leads to whole system efficiency to descend, and the pipeline is easier to be crystallized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a urea hydrolysis reactor of zone control, this equipment can be according to actual operation's operating mode, and to the urea solution subregion heating in the jar, and then not reducing the steam quality, do not influence under the condition of hydrolysis reaction rate, produce the ammonia as required.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a urea hydrolysis reactor controlled in a partitioning mode comprises a hydrolysis reactor tank body, wherein a plurality of component partitioning plates used for partitioning the hydrolysis reactor tank body into a plurality of compartments from front to back are arranged in the hydrolysis reactor tank body, and each compartment is provided with a feeding hole, a sewage draining outlet, a liquid level meter interface and a thermometer interface; the bottom in the hydrolysis reactor tank body is provided with a steam coil.
The utility model discloses a further improvement lies in, and the drain includes middle part drain and bottom drain, and the bottom drain is located middle part drain below.
The utility model discloses a further improvement lies in that hydrolysis reactor jar body top is provided with product gas defroster.
The utility model discloses a further improvement lies in that hydrolysis reactor jar body bottom is provided with the landing leg.
The utility model discloses a further improvement lies in, and the tip of the hydrolysis reactor jar body is provided with the head.
The utility model discloses a further improvement lies in, hydrophobic export and a plurality of steam import have been seted up to steam coil pipe tip.
The utility model discloses a further improvement lies in, and steam coil passes through the fixed bolster to be fixed in hydrolysis reactor jar internally.
The utility model discloses a further improvement lies in that steam coil passes every lobe, and the steam coil that is located every lobe is cut apart through the steam coil baffle.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a be arranged a plurality of component partition boards that are used for separating the hydrolysis reactor jar body for a plurality of bays to the back in the past at the hydrolysis reactor jar internal to set up steam coil, but urea hydrolysis reactor of zone control when concrete operation, can be according to the unit under different loads, different NOx concentration, the bay of the different quantity of accurate control, in order to produce required ammonia volume. The utility model discloses can use the accurate system ammonia of solution of different bays according to actual demand, both keep the steam quality unchangeable, the phase change reduces solution volume again, consequently can effectively raise the efficiency. The problem that in the prior art, the steam quality is reduced along with the reduction of the valve opening in order to control the gas production rate under the past condition, particularly under low load, and the problem that the reaction efficiency is greatly reduced due to the superposition of two factors and the fact that the solution amount is basically unchanged no matter the output of the hydrolysis reactor due to the liquid level requirement of a horizontal tank are solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view along direction a in fig. 1.
Wherein, 1 is the hydrolysis reactor jar body, 2 is the product gas defroster, 3 is the head, 4 is the subregion baffle, 5 is the level gauge interface, 6 is the thermometer interface, 7 is the feed inlet, 8 is middle part drain, 9 is the bottom drain, 10 is steam inlet, 11 is hydrophobic export, 12 is the steam coil pipe, 13 is the fixed bolster, 14 is the landing leg, 15 is the steam coil pipe baffle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "secured to" or "disposed on" another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 and 2, but urea hydrolysis reactor of zone control, including the hydrolysis reactor jar body 1, be provided with product gas defroster 2, subregion baffle 4, level gauge interface 5, thermometer interface 6, feed inlet 7, middle part drain 8, bottom drain 9 and landing leg 14 on the hydrolysis reactor jar body 1. Specifically, 1 tops of the hydrolysis reactor tank bodies are provided with product gas demisters 2, the bottoms of the hydrolysis reactor tank bodies 1 are provided with supporting legs 14, the hydrolysis reactor tank bodies 1 are arranged on the supporting legs 14, and the end portions of the hydrolysis reactor tank bodies 1 are provided with seal heads 3.
A plurality of groups of partition plates 4 are arranged in the hydrolysis reactor tank body 1, the hydrolysis reactor tank body 1 is divided into a plurality of compartments from front to back, and each compartment is provided with a feed inlet 7, a middle sewage discharge outlet 8, a bottom sewage discharge outlet 9, a liquid level meter interface 5 and a thermometer interface 6 so as to realize accurate control. The bottom drain outlet 9 is positioned below the middle drain outlet 8.
The bottom in the hydrolysis reactor tank body 1 is provided with a steam coil 12, the end part of the steam coil 12 is provided with a hydrophobic outlet 11 and a plurality of steam inlets 10, and the steam coil 12 is fixed in the hydrolysis reactor tank body 1 through a fixed support 13. The steam coil 12 passes through each compartment and the inlet in the steam coil 12 in each compartment is divided by a steam coil partition 15.
The steam coils 12 are arranged at the bottom of the corresponding compartments according to different lengths, the inlets are separated by a steam coil clapboard 15, and all the steam coils 12 share one path of water drainage.
When the unit load is low, when required ammonia volume is less, only open the steam inlet valve of preceding lobe, when the unit load is high, when required ammonia volume is great, can open the steam inlet valve of all the other lobes in proper order, until producing the ammonia volume that satisfies the requirement, the utility model discloses a but subregion accurate control system ammonia.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. However, all changes which come within the scope of the independent claims of the invention are to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. A urea hydrolysis reactor controlled in a partitioning mode is characterized by comprising a hydrolysis reactor tank body (1), wherein a plurality of component partitioning plates (4) used for partitioning the hydrolysis reactor tank body (1) into a plurality of compartments from front to back are arranged in the hydrolysis reactor tank body (1), and each compartment is provided with a feeding hole (7), a sewage draining hole, a liquid level meter interface (5) and a thermometer interface (6); the bottom in the hydrolysis reactor tank body (1) is provided with a steam coil (12).
2. A zoned controlled urea hydrolysis reactor according to claim 1, characterized in that the drain comprises a middle drain (8) and a bottom drain (9), the bottom drain (9) being located below the middle drain (8).
3. A zoned controlled urea hydrolysis reactor according to claim 1, characterized in that the hydrolysis reactor tank (1) is provided with a product gas demister (2) at the top.
4. A zoned controlled urea hydrolysis reactor according to claim 1, characterized in that the bottom of the hydrolysis reactor tank (1) is provided with legs (14).
5. A urea hydrolysis reactor with zonal control according to claim 1, characterized in that the end of the hydrolysis reactor tank (1) is provided with a head (3).
6. A urea hydrolysis reactor with zoned control according to claim 1, characterized in that the steam coil (12) has a hydrophobic outlet (11) and several steam inlets (10) at its ends.
7. A zoned controlled urea hydrolysis reactor according to claim 1, characterized in that the steam coil (12) is fixed inside the hydrolysis reactor tank (1) by means of fixing brackets (13).
8. A urea hydrolysis reactor with zoned control according to claim 1, characterized in that the steam coil (12) passes through each compartment, the steam coil (12) located in each compartment being divided by a steam coil partition (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022711225.1U CN213854574U (en) | 2020-11-21 | 2020-11-21 | Urea hydrolysis reactor with partitioned control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022711225.1U CN213854574U (en) | 2020-11-21 | 2020-11-21 | Urea hydrolysis reactor with partitioned control |
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| CN213854574U true CN213854574U (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984669A (en) * | 2022-06-23 | 2022-09-02 | 西安西热锅炉环保工程有限公司 | Novel urea hydrolyzer export defogging device |
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2020
- 2020-11-21 CN CN202022711225.1U patent/CN213854574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984669A (en) * | 2022-06-23 | 2022-09-02 | 西安西热锅炉环保工程有限公司 | Novel urea hydrolyzer export defogging device |
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