CN202933632U - Device for preparing urea solution with weighing method - Google Patents
Device for preparing urea solution with weighing method Download PDFInfo
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- CN202933632U CN202933632U CN201220480299.1U CN201220480299U CN202933632U CN 202933632 U CN202933632 U CN 202933632U CN 201220480299 U CN201220480299 U CN 201220480299U CN 202933632 U CN202933632 U CN 202933632U
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- urea
- dissolving tank
- granules
- urea solution
- weight method
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Abstract
The utility model discloses a device for preparing a urea solution with a weighing method, and relates to a device for preparing the urea solution taken as a reducing agent for denitration of flue gas of a large utility boiler. The device comprises a weighing device, a urea dissolving tank placed on the weighing device and a water tank communicated to the urea dissolving tank through a pipeline. The device can prepare the required urea solution according to a preset solution concentration simply, conveniently and rapidly.
Description
Technical field
The utility model relates to a kind of reducing agent urea solution preparing device that the denitrating flue gas such as large-sized station boiler, waste heat boiler are used that is applicable to.
Background technology
Urea is a kind of green fertilizer, can betransported easily, stores and use, and at present, urea is adopted more and more in a large number as power station or industrial burning device denitrating flue gas reducing agent.
Urea need to be prepared into solution and be stored as denitrification reducing agent.Present urea usually is prepared to 8-15%Wt. or two kinds of concentration of 50%Wt. store.
The 8-15%Wt. urea liquid, because urea concentration is too low, urea liquid storage volumes and floor space all will increase, and cause cost of investment too high.The urea liquid of 50%Wt., because solution concentration is too high, urea liquid and urea liquid store and all need to pass into steam and prevent urea crystals, separate out to improve the urea liquid temperature, and dissolving and reservoir vessel shell also need insulation, make investment and operation energy consumption too high.
The inventor herein studies discovery, prepares by mass percentage the urea liquid of 32.5%Wt., and its crystallization temperature is minimum, reaches under-11.5 ℃ of environment temperatures, and the urea granules in solution can crystallization, and can steady in a long-termly store.
The utility model content
The purpose of this utility model is: a kind of weight method urea solution preparing device is proposed, and can be simply, prepare required urea liquid according to default solution concentration easily and quickly.
The purpose of this utility model realizes by following technical proposals:
A kind of weight method urea solution preparing device is characterized in that: comprises weighing device, is positioned over the urea dissolving tank on described weighing device, and by the water tank of pipeline connection to described urea dissolving tank.
As optimal way, also comprise the urea granules warehouse that is positioned at described urea dissolving tank top, described urea granules warehouse lower end is provided with the opening with valve.
As optimal way, described urea granules warehouse is positioned at directly over described urea dissolving tank.
In such scheme, after Open valve, the urea granules in the urea granules warehouse directly falls into the urea dissolving tank of below, need not interface channel.
As optimal way, be communicated with by the urea granules transfer passage between described urea granules warehouse and urea dissolving tank.
In such scheme, after Open valve, the urea granules in the urea granules warehouse falls into the urea dissolving tank of below by passage, and both installation sites can be more flexible, need not directly up and down correspondence.
As optimal way, described urea dissolving tank also is provided with agitator.
As optimal way, also comprise the urea liquid storage tank that is communicated with described urea dissolving tank by pump and pipeline.
As optimal way, described weighing device is that weighbridge claims.
Workflow of the present utility model:
The example that is configured to the urea liquid of controlling 32.5%Wt. by weight bridge weighing.Weighbridge claims to be positioned at bottom the urea dissolving tank, is used for weighing urea dissolving tank and solution thereof.In advance with the weight t1 of weighbridge weighing urea dissolving tank (containing agitator), wherein directly or feed urea granules by the urea granules warehouse, weigh urea dissolving tank (containing agitator and urea granules) weight t2, the weight of urea that adds is t2-t1.Add the water from water tank in the urea dissolving tank, then weigh urea dissolving tank (containing agitator, urea granules and water) weight t3, make the water that adds finally satisfy (t2-t1) ÷ (t3-t1) * 100=32.5, configuration is completed.Start pump, urea liquid is delivered in the urea liquid storage tank stored.
The beneficial effects of the utility model: can be simply, prepare required urea liquid according to default solution concentration easily and quickly.As configure 32.5 %Wt., when density was the urea liquid of 1090kg/m3, the urea liquid crystalline temperature was minimum, reached-11.5 ℃, can effectively prevent urea granules crystallization in urea liquid, separate out; But urea liquid storage tank outdoor arrangement, solution can store steadily in the long term; Urea dissolving and storage need not to arrange heating facility (as passing into Steam Heating) and improve solution temperature, have saved operation energy consumption and running cost; Urea liquid stores and need not to arrange agitator and outer insulation, has saved cost of investment.Be applicable to the reducing agent urea solution preparation that the denitrating flue gas such as large-sized station boiler, waste heat boiler are used, can reach operation energy consumption and the cost of investment purpose of saving the urea dissolving and storing.
Description of drawings
Fig. 1 is the device schematic flow sheet of the utility model embodiment.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figure 1, control the configuration of the urea liquid of 32.5%Wt. by weight bridge weighing.
Weighbridge claims 39 to be positioned at urea dissolving tank 32 bottoms, is used for weighing urea dissolving tank and solution thereof.
Contain agitator 33 with weighbridge weighing urea dissolving tank 32(in advance) weight t1, feed wherein urea granules 11.Can carry (or bucket elevator lifting) directly to feed urea granules 11 by strength by tank car, the urea granules warehouse perhaps is set above urea dissolving tank 32, the urea granules warehouse be the tapered barrel chamber structure, and the lower end is provided with the opening with valve.The urea granules warehouse can be positioned at directly over urea dissolving tank 32.At this moment, after Open valve, the urea granules in the urea granules warehouse directly falls into the urea dissolving tank 32 of below, need not interface channel.Perhaps, be communicated with by the urea granules transfer passage between urea granules warehouse and urea dissolving tank 32.At this moment, after Open valve, the urea granules in the urea granules warehouse falls into the urea dissolving tank 32 of below by passage, and both installation sites can be more flexible, need not directly up and down correspondence.Weigh urea dissolving tank 32(and contain agitator 33 and urea granules) weight t2, the weight of urea that adds is t2-t1.Add the water 21 from water tank 23 in the urea dissolving tank 32, then weigh urea dissolving tank 32(and contain agitator 33, urea granules and water) weight t3, make the water that adds finally satisfy (t2-t1) ÷ (t3-t1) * 100=32.5, configuration is completed.Start pump 34, urea liquid 31 is delivered to storage in urea liquid storage tank 4.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. weight method urea solution preparing device is characterized in that: comprises weighing device, is positioned over the urea dissolving tank on described weighing device, and by the water tank of pipeline connection to described urea dissolving tank.
2. weight method urea solution preparing device as claimed in claim 1 is characterized in that: also comprise the urea granules warehouse that is positioned at described urea dissolving tank top, described urea granules warehouse lower end is provided with the opening with valve.
3. weight method urea solution preparing device as claimed in claim 2, it is characterized in that: described urea granules warehouse is positioned at directly over described urea dissolving tank.
4. weight method urea solution preparing device as claimed in claim 2, is characterized in that: be communicated with by the urea granules transfer passage between described urea granules warehouse and urea dissolving tank.
5. weight method urea solution preparing device as claimed in claim 1, it is characterized in that: described urea dissolving tank also is provided with agitator.
6. weight method urea solution preparing device as claimed in claim 1, is characterized in that: also comprise the urea liquid storage tank that is communicated with described urea dissolving tank by pump and pipeline.
7. weight method urea solution preparing device as claimed in claim 1, it is characterized in that: described weighing device is that weighbridge claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220480299.1U CN202933632U (en) | 2012-09-20 | 2012-09-20 | Device for preparing urea solution with weighing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220480299.1U CN202933632U (en) | 2012-09-20 | 2012-09-20 | Device for preparing urea solution with weighing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202933632U true CN202933632U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220480299.1U Expired - Lifetime CN202933632U (en) | 2012-09-20 | 2012-09-20 | Device for preparing urea solution with weighing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN202933632U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551062A (en) * | 2013-10-30 | 2014-02-05 | 福州大北农生物技术有限公司 | Equipment for improving preparation efficiency of nutrient solution as well as production method of nutrient solution |
| CN106681380A (en) * | 2016-12-14 | 2017-05-17 | 珠海格力智能装备有限公司 | Method and device for controlling concentration of urea solution for vehicle |
| CN107899508A (en) * | 2017-11-27 | 2018-04-13 | 共享装备股份有限公司 | The concocting method of metallic paint |
-
2012
- 2012-09-20 CN CN201220480299.1U patent/CN202933632U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551062A (en) * | 2013-10-30 | 2014-02-05 | 福州大北农生物技术有限公司 | Equipment for improving preparation efficiency of nutrient solution as well as production method of nutrient solution |
| CN106681380A (en) * | 2016-12-14 | 2017-05-17 | 珠海格力智能装备有限公司 | Method and device for controlling concentration of urea solution for vehicle |
| CN107899508A (en) * | 2017-11-27 | 2018-04-13 | 共享装备股份有限公司 | The concocting method of metallic paint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
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| CX01 | Expiry of patent term |