CN211913517U

CN211913517U - Liquid mixing kettle for ammonia water and ammonia spraying and dosing system

Info

Publication number: CN211913517U
Application number: CN202020360647.6U
Authority: CN
Inventors: 王宣德; 李晓强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-11-13
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a liquid mixing kettle of aqueous ammonia and spout ammonia charge system, including the agitator mixing tank, sealed the lid that sets up on the agitator mixing tank, the setting is covered in sealed with the pipe fitting that is used for providing water and strong aqueous ammonia for the agitator mixing tank, the setting is covered in sealed and is used for driving (mixing) shaft pivoted servo motor, the setting is covered in sealed and is located servo motor's ammonia escape detection cover directly over, set up at ammonia escape a plurality of ammonia detectors that detect the cover and pass through the PLC control system of electricity with the ammonia detector. Through installation ammonia escape detection cover and ammonia detector on the agitator mixing tank in this application to utilize control system to close moisturizing pipe solenoid valve and dense ammonia pipe solenoid valve fast, thereby avoid causing a large amount of ammonia to leak, realize the rapid processing, improve its sealing performance through rubber pad and toper cyclic annular pressing sheet simultaneously between agitator mixing tank and sealed lid.

Description

Liquid mixing kettle for ammonia water and ammonia spraying and dosing system

Technical Field

The utility model relates to a denitration technical field of power plant especially relates to a muddy liquid cauldron of aqueous ammonia and spout ammonia charge system.

Background

The unit steam-water dosing system in the conventional power plant adopts on-site manual barreling for manually dosing, 8-10 barrels of the dosing are dosed each time, and the dosing is averagely once a day; but because ammonia is a volatile, irritating chemical and has some toxicity; even if the personnel have done protection and ventilation measure during the operation, because the volatility of ammonia with have certain pungent smell to cause certain stimulus and influence to human injury especially respiratory track, thereby directly influence health and equipment safety, in the mixing box of conventional aqueous ammonia, the escape of ammonia detects inaccurately.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a muddy liquid cauldron of aqueous ammonia and spout ammonia charge system solves the muddy liquid cauldron of conventional aqueous ammonia and spouts the problem that the processing problem is untimely with the manual work patrols and examines to seal the effect well among the ammonia charge system.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a liquid mixing kettle of ammonia water, including stirring mixing tank, sealed lid, setting on the stirring mixing tank, setting are in on the sealed lid with for the stirring mixing tank provides the pipe fitting of water and strong aqueous ammonia, set up be used for in the stirring mixing tank to dilute the (mixing) shaft that mixes with setting up in the stirring mixing tank is in the stirring blade of (mixing) shaft periphery side, set up be used for driving on the sealed lid the (mixing) shaft pivoted servo motor, set up on the sealed lid and lie in the ammonia escape detection cover directly over servo motor, set up a plurality of ammonia gas detector on the ammonia escape detection cover and with the PLC control system that the ammonia gas detector passes through the electricity to be connected; a water replenishing pipe electromagnetic valve is arranged on a water replenishing pipe which is arranged on the sealing cover and is used for communicating the stirring and mixing tank, and a concentrated ammonia pipe electromagnetic valve is arranged on a concentrated ammonia pipe which is arranged on the sealing cover and is used for communicating the stirring and mixing tank; an ammonia conveying pipe for denitration is arranged at the bottom of the stirring and mixing tank; the stirring mixing tank with install rubber pad and compressing tablet between the sealed lid, the stirring mixing tank with fix through fixing bolt and seal between the sealed lid.

Furthermore, the stirring and mixing tank is of a cylindrical structure, and a flange plate is arranged on the periphery of the top of the stirring and mixing tank.

Still further, the stirring shaft and the stirring mixing tank are coaxially arranged, and the upper end of the stirring shaft is driven by the servo motor through a speed reducer.

Still further, the bottom of stirring blending tank is provided with a plurality of support bases that are used for supporting.

Still further, the ammonia escape detection cover is mounted on the sealing cover by a plurality of support columns.

Still further, an ammonia gas absorber is arranged on the sealing cover.

Still further, an ammonia gas conveying pipe is communicated with the side wall of the upper part of the stirring and mixing tank.

Still further, the top of the stirring and mixing tank is hermetically connected with the sealing cover through a convex-concave insertion groove.

Still further, the rubber pad and the pressing sheet are respectively installed in the convex-concave insertion groove in a matched mode, and the section of the pressing sheet is provided with a conical radian convenient to press.

An ammonia spraying and dosing system of a liquid mixing kettle using ammonia water comprises the liquid mixing kettle using the ammonia water and a condensed water source, wherein the condensed water source is communicated with the inside of a stirring and mixing tank through a conveying pump and a conveying pipe fitting; an ammonia gas detector is arranged in the ammonia escape detection cover and electrically connected with the PLC control system, and the PLC control system is electrically connected with a water replenishing pipe electromagnetic valve and a concentrated ammonia pipe electromagnetic valve.

Compared with the prior art, the utility model discloses a beneficial technological effect: through installation ammonia escape detection cover and ammonia detector on the agitator mixing tank in this application to utilize control system to close moisturizing pipe solenoid valve and dense ammonia pipe solenoid valve fast, thereby avoid causing a large amount of ammonia to leak, realize the quick response, simultaneously at the agitator mixing tank with improve its sealing performance through rubber pad and toper cyclic annular pressing sheet between the sealed lid.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic view of the main body of the ammonia water mixing kettle and the ammonia spraying and dosing system of the present invention;

FIG. 2 is a schematic view of the process flow of the mixing kettle and the ammonia spraying and dosing system for ammonia water of the present invention;

FIG. 3 is a schematic view of a liquid mixing kettle and a specific sealing cover body of an ammonia spraying and dosing system for ammonia water according to the present invention;

fig. 4 is a schematic view of the sealing structure of the mixing kettle and the ammonia spraying and dosing system of the ammonia water of the utility model.

Fig. 5 is a schematic diagram of the mixing kettle of the ammonia water and the compressing sheet of the ammonia spraying and dosing system of the utility model.

FIG. 6 is a schematic view of the control system of the mixing kettle and the ammonia spraying and dosing system of the ammonia water of the present invention.

Description of reference numerals: 1. a source of condensed water; 2. a delivery pump; 2-1, a water replenishing pipe electromagnetic valve; 3. An ejector; 3-1, a concentrated ammonia pipe electromagnetic valve; 4. a concentrated ammonia solution barrel; 5. stirring and mixing the materials in a tank; 5-1, a servo motor; 5-2, stirring blades; 5-3, a stirring shaft; 5-4, supporting the base; 5-5, an ammonia conveying pipe for denitration; 5-6, sealing cover; 5-61, fixing bolt; 6. an ammonia escape detection hood; 6-1, an ammonia gas detector; 7. a denitration system; 8. a PLC control system; 9. an ammonia gas absorber; 10. An ammonia gas delivery pipe; 11. a rubber pad; 12. and a pressing sheet.

Detailed Description

As shown in fig. 1 to 6, this embodiment discloses a liquid mixing kettle for ammonia water and an ammonia spraying and dosing system, which includes a stirring and mixing tank 5, a sealing cover 5-6 hermetically installed on the stirring and mixing tank 5, a pipe fitting installed on the sealing cover 5-6 for respectively providing water and concentrated ammonia water for the stirring and mixing tank 5, a stirring shaft 5-3 installed in the stirring and mixing tank 5 for diluting and mixing concentrated ammonia water, a stirring blade 5-2 installed on the outer peripheral side of the stirring shaft 5-3, a servo motor 5-1 installed on the sealing cover 5-6 for driving the stirring shaft 5-3 to rotate, an ammonia escape detection cover 6 installed on the sealing cover 5-6 and located right above the servo motor 5-1, ammonia detectors 6-1 installed on the ammonia escape detection cover 6 and evenly distributed on the ammonia escape detection cover 6, and an ammonia gas detector 6-1, a PLC control system 8 electrically connected with the stirring and mixing tank 5 is provided with a water replenishing pipe electromagnetic valve 2-1 on a pipeline for supplying water, and similarly, a concentrated ammonia pipe electromagnetic valve 3-1 is arranged on a pipeline for supplying concentrated ammonia water and communicating with the stirring and mixing tank 5, wherein the ammonia gas detector 6-1 is GJK-JH6102-NH3, and the specific name is also a portable ammonia gas detector; a water replenishing pipe electromagnetic valve 2-1 is arranged on a water replenishing pipe which is arranged on the sealing cover 5-6 and is used for communicating the stirring mixing tank 5, a concentrated ammonia pipe electromagnetic valve 3-1 is arranged on a concentrated ammonia pipe which is arranged on the sealing cover 5-6 and is used for communicating the stirring mixing tank 5, wherein the water replenishing pipe electromagnetic valve 2-1 and the concentrated ammonia pipe electromagnetic valve 3-1 are switched on and off through a PLC (programmable logic controller) control system 8; the bottom of the stirring and mixing tank 5 is provided with an ammonia conveying pipe 5-5 for denitration; a rubber pad 11 and a pressing sheet 12 are arranged between the stirring and mixing tank 5 and the sealing covers 5-6, and the stirring and mixing tank 5 and the sealing covers 5-6 are fixedly sealed through fixing bolts 5-61, so that the sealing performance of the stirring and mixing tank is improved.

In the embodiment, the stirring and mixing tank 5 is of a cylindrical structure, and a flange is arranged on the periphery of the top of the stirring and mixing tank, so that a sealing cover 5-6 is conveniently connected with the stirring and mixing tank 5 in a sealing manner through a fixing bolt 5-61; the stirring shaft 5-3 and the stirring mixing tank 5 are coaxially arranged, and the upper end of the stirring shaft 5-3 is driven by a speed reducer through the servo motor 5-1, so that the stirring and mixing efficiency is improved; a plurality of supporting bases 5-4 for supporting are arranged at the bottom of the stirring and mixing tank 5, and the supporting bases 5-4 are supporting columns; the ammonia escape detection cover 6 is installed on the sealing covers 5 to 6 through four supporting columns, specifically, as shown in fig. 1, a cross-sectional view of the ammonia escape detection cover is shown, the ammonia escape detection cover 6 is of a car roof structure, an ammonia gas detector 6-1 is installed at the top inside the ammonia escape detection cover 6 and used for detecting whether ammonia gas leaks or not, and the ammonia gas detector is electrically connected with the PLC control system 8 as an input signal, so that subsequent safety operation is performed; the sealing covers 5-6 are provided with ammonia gas absorbers 9, wherein the ammonia gas absorber disclosed in the authorization publication number CN206535390U is arranged on the sealing covers, so that the ammonia gas in the ammonia solution medicine box is effectively prevented from overflowing into the outside air; therefore, the volatilized ammonia gas in the stirring and mixing tank 5 is sucked out through a pipeline, and the stable pressure in the stirring and mixing tank 5 is ensured; the side wall of the upper part of the stirring and mixing tank 5 is communicated with an ammonia conveying pipe 10, and ammonia volatilized in the stirring and mixing tank is conveyed into a denitration system 7 through the ammonia conveying pipe 10; the top of the stirring mixing tank 5 is hermetically connected with the sealing covers 5-6 through convex-concave insertion grooves, as shown in fig. 3, the rubber pad 11 and the pressing sheet 12 are respectively installed in the convex-concave insertion grooves in a matching manner, and the section of the pressing sheet 12 has a conical radian convenient for pressing, as shown in fig. 5, and plays a pressing state through the conical radian, thereby improving the sealing performance.

The embodiment also provides an ammonia spraying and dosing system of a liquid mixing kettle using ammonia water, which comprises a condensed water source 1, wherein the condensed water source 1 is communicated with the inside of the stirring and mixing tank 5 through a conveying pump 2 and a conveying pipe fitting, the condensed water source 1 conveys the concentrated ammonia water in a concentrated ammonia solution barrel 4 into the stirring and mixing tank 5 through a conveying pump and an ejector 3, then a stirring shaft 5-3 in the stirring and mixing tank 5 is driven by a servo motor 5-1 to stir and rotate, and the stirring and mixing tank 5 is conveyed into a denitration system 7 through an ammonia conveying pipe 5-5 for denitration treatment; an ammonia gas detector 6-1 is installed in the ammonia escape detection cover 6, the ammonia gas detector 6-1 is electrically connected with a PLC control system 8, the PLC control system 8 is electrically connected with a water supplementing pipe electromagnetic valve 2-1 and a concentrated ammonia pipe electromagnetic valve 3-1 so as to control the water supplementing pipe electromagnetic valve 2-1 and the concentrated ammonia pipe electromagnetic valve 3-1, and therefore the supply of concentrated ammonia water is reduced, on the other hand, the PLC control system 8 controls an ammonia gas absorber 9 to absorb the escaped ammonia gas, and continuously provides an ammonium solution for the denitration system 7 through an ammonia conveying pipe 5-5 for denitration, the ammonia conveying pipe 5-5 for denitration is closed until the ammonia water of the stirring mixing tank 5 is consumed, and then the other set of ammonia spraying and dosing system is opened for the denitration system 7.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above embodiments are only for describing the preferred mode of the invention, and are not intended to limit the scope of the invention, and various modifications and improvements made to the technical solution of the invention by those skilled in the art without departing from the spirit of the invention should fall within the protection scope defined by the claims of the invention.

Claims

1. The utility model provides a muddy liquid cauldron of aqueous ammonia which characterized in that: including stirring blending tank (5), sealed lid (5-6) of setting on stirring blending tank (5), setting are in on sealed lid (5-6) be used for stirring blending tank (5) provide the pipe fitting of water and strong aqueous ammonia, set up be used for in stirring blending tank (5) dilute the (mixing) shaft (5-3) that mix and set up in stirring shaft (5-3) periphery side stirring vane (5-2), set up be used for driving on sealed lid (5-6) stirring shaft (5-3) pivoted servo motor (5-1), set up on sealed lid (5-6) and be located ammonia escape detection cover (6) directly over servo motor (5-1), set up and be in a plurality of ammonia gas detector (6-1) on ammonia escape detection cover (6) and with ammonia gas detector (6-1) pass through A PLC control system (8) electrically connected; a water replenishing pipe electromagnetic valve (2-1) is arranged on a water replenishing pipe which is arranged on the sealing cover (5-6) and is used for communicating the stirring and mixing tank (5), and a concentrated ammonia pipe electromagnetic valve (3-1) is arranged on a concentrated ammonia pipe which is arranged on the sealing cover (5-6) and is used for communicating the stirring and mixing tank (5); an ammonia conveying pipe (5-5) for denitration is arranged at the bottom of the stirring and mixing tank (5); a rubber pad (11) and a pressing sheet (12) are arranged between the stirring and mixing tank (5) and the sealing covers (5-6), and the stirring and mixing tank (5) and the sealing covers (5-6) are fixedly sealed through fixing bolts (5-61).

2. The mixing kettle of ammonia water according to claim 1, characterized in that: the stirring and mixing tank (5) is of a cylindrical structure, and a flange plate is arranged on the periphery of the top of the stirring and mixing tank.

3. The mixing kettle of ammonia water according to claim 2, characterized in that: the stirring shaft (5-3) and the stirring mixing tank (5) are coaxially arranged, and the upper end of the stirring shaft (5-3) is driven by the servo motor (5-1) through a speed reducer.

4. The mixing kettle of ammonia water according to claim 1, characterized in that: the bottom of the stirring and mixing tank (5) is provided with a plurality of supporting bases (5-4) for supporting.

5. The mixing kettle of ammonia water according to claim 1, characterized in that: the ammonia escape detection cover (6) is mounted on the sealing covers (5-6) through a plurality of supporting columns.

6. The mixing kettle of ammonia water according to claim 1, characterized in that: and an ammonia gas absorber (9) is arranged on the sealing covers (5-6).

7. The mixing kettle of ammonia water according to claim 1, characterized in that: and the side wall of the upper part of the stirring and mixing tank (5) is communicated with an ammonia gas conveying pipe (10).

8. The mixing kettle of ammonia water according to claim 1, characterized in that: the top of the stirring and mixing tank (5) is hermetically connected with the sealing covers (5-6) through convex-concave insertion grooves.

9. The mixing kettle of ammonia water according to claim 8, characterized in that: the rubber pad (11) and the pressing sheet (12) are respectively installed in the convex-concave insertion grooves in a matching mode, and the section of the pressing sheet (12) is provided with a conical radian convenient to press.

10. The utility model provides an use mixed liquid cauldron of aqueous ammonia spout ammonia medicine system which characterized in that: the ammonia water denitration system comprises a liquid mixing kettle containing ammonia water in claim 1 and a condensed water source (1), wherein the condensed water source (1) is communicated with the inside of a stirring and mixing tank (5) through a conveying pump (2) and a conveying pipe fitting, the condensed water source (1) conveys the concentrated ammonia water in a concentrated ammonia solution barrel (4) into the stirring and mixing tank (5) through the conveying pump and an ejector (3), then a servo motor (5-1) drives a stirring shaft (5-3) in the stirring and mixing tank (5) to stir and rotate, and the stirring and mixing tank (5) is conveyed into a denitration system (7) through an ammonia conveying pipe (5-5) for denitration treatment; an ammonia gas detector (6-1) is arranged in the ammonia escape detection cover (6), the ammonia gas detector (6-1) is electrically connected with a PLC control system (8), and the PLC control system (8) is electrically connected with a water supplementing pipe electromagnetic valve (2-1) and a concentrated ammonia pipe electromagnetic valve (3-1).