CN217340082U

CN217340082U - A liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control

Info

Publication number: CN217340082U
Application number: CN202221203383.9U
Authority: CN
Inventors: 安新新; 王建伟
Original assignee: Etokeqi Jianyuan Coal Coking Co ltd
Current assignee: Etokeqi Jianyuan Coal Coking Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-02
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses an integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification, which comprises a device main body, wherein an ammonia evaporation chamber, a heat exchange chamber and a mixed absorption chamber are arranged inside the device main body, a heat exchanger is arranged inside the heat exchange chamber, and a second connecting pipe and an air inlet pipe are fixedly connected with the air inlet end of the heat exchanger; an air pressure adjusting valve is fixedly connected to the upper side wall of the device main body, a sliding frame is arranged inside the air pressure adjusting valve, a sliding groove is arranged inside the sliding frame, a sliding piston is connected inside the sliding groove in a sliding mode, and a plurality of air holes are formed in the sliding frame; one end fixedly connected with of atmospheric pressure governing valve adjusts the gas receiver, the inside of adjusting the gas receiver is provided with the check valve, the inside of ammonia still is provided with the connector. The utility model discloses in, the atmospheric pressure governing valve and adjust the gas receiver can make the inside high-pressure gas discharge efficiency of first gas outlet improve.

Description

A liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control

Technical Field

The utility model relates to an aqueous ammonia preparation technical field especially relates to a liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control.

Background

Along with the continuous development of modern economic society, the incineration treatment capacity of municipal domestic waste in China is greatly improved, and meanwhile, the emission standard of waste incineration smoke at home and abroad is increasingly strict, so that the realization of ultralow emission becomes the development trend of the waste incineration power generation industry. The ammonia water is used as an important reducing agent for desulfurization and denitrification, and the using amount of the ammonia water is greatly increased along with the increase of the incineration treatment amount of the municipal solid waste.

NOx discharged by garbage incineration can form acid rain and photochemical smog in the atmosphere, and harm human health and normal growth of crops. At present, in order to meet the requirement of ultra-low emission, a garbage incineration plant usually adopts an SNCR + SCR combined denitration mode, a large amount of ammonia water is consumed, and NOx is controlled at a low level. However, the ammonia water is high in long-distance transportation cost, sometimes the supply of ammonia water is short, so that the flue gas treatment equipment cannot operate, and hidden dangers are caused for the safe and environment-friendly operation of a garbage power plant. Chinese patent CN214495750U provides an integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification, and the device is simple in operation, does not need complicated control procedure, can realize remote control, reduces the manpower cost, but increases easily the air pressure in the mixed absorption chamber, leads to the ammonia to hardly get into the mixed absorption chamber.

Therefore, in order to solve the above technical problems, it is necessary to provide an integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification, so as to overcome the above defects in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an integrated device for preparing ammonia water by using liquid ammonia for desulfurization and denitrification.

In order to realize the purpose, the utility model adopts the following technical scheme: the ammonia still device comprises a device main body, wherein an ammonia still chamber, a heat exchange chamber and a mixing absorption chamber are arranged in the device main body, a heat exchanger is arranged in the heat exchange chamber, and a second connecting pipe and an air inlet pipe are fixedly connected to the air inlet end of the heat exchanger;

an air pressure adjusting valve is fixedly connected to the upper side wall of the device main body, a sliding frame is arranged inside the air pressure adjusting valve, a sliding groove is arranged inside the sliding frame, a sliding piston is connected inside the sliding groove in a sliding mode, and a plurality of air holes are formed in the sliding frame;

one end fixedly connected with of atmospheric pressure governing valve adjusts the gas receiver, the inside of adjusting the gas receiver is provided with the check valve, the inside of ammonia still is provided with the connector.

As a further description of the above technical solution:

the outer side wall of the device main body is fixedly connected with a connecting ring, and the outer side wall of the connecting ring is fixedly connected with a plurality of supporting legs.

As a further description of the above technical solution:

the inside of air pressure regulating valve is provided with a gas storage tank, and the regulation gas storage pipe is communicated with the sliding groove through the gas storage tank and the air holes.

As a further description of the above technical solution:

the upper side wall of the mixing absorption chamber is fixedly connected with a first connecting pipe, and the first connecting pipe is fixedly connected with the connecting head.

As a further description of the above technical solution:

the second connecting pipe is fixedly connected with the output end of the connector.

As a further description of the above technical solution:

and an ammonia gas outlet is formed in the inner side wall of the ammonia distillation chamber.

As a further description of the above technical solution:

and a return spring is fixedly connected between the upper inner wall of the sliding frame and the sliding piston.

As a further description of the above technical solution:

the output end of the heat exchanger is fixedly connected with a first air outlet pipe and a second air outlet pipe, the first air outlet pipe is communicated with the air inlet pipe, and the second air outlet pipe is communicated with a second connecting pipe.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this a liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control has set up the air pressure regulating valve and has adjusted the gas receiver, when the inside atmospheric pressure of mixing the absorption chamber was too high, can promote the upside that the sliding piston removed the bleeder vent to make the inside high-pressure gas of mixing the absorption chamber pass through bleeder vent and gas receiver entering and adjust the gas receiver, the inside high-pressure gas of the first outlet duct of being convenient for discharges.

2. Compared with the prior art, this a liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control has set up the heat exchanger, and the heat exchanger can effectively improve the heat transfer effect between intake pipe and the second connecting pipe, can effectively improve heat exchange efficiency.

Drawings

FIG. 1 is a schematic structural view of an integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification provided by the utility model;

FIG. 2 is an internal schematic view of an integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification provided by the utility model;

fig. 3 is an enlarged schematic view of a position a of the integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification provided by the present invention;

fig. 4 is the utility model provides a overlook schematic diagram of a liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control.

Illustration of the drawings:

1. a device main body; 101. a first connecting pipe; 102. a second connection pipe; 103. an air inlet pipe; 104. an ammonia gas outlet; 2. a connecting ring; 201. supporting legs; 3. an air pressure regulating valve; 301. adjusting the gas storage pipe; 302. a carriage; 303. air holes are formed; 304. a sliding piston; 305. a chute; 306. a return spring; 307. a gas storage tank; 4. a heat exchange chamber; 5. an ammonia distillation chamber; 6. a mixing and absorbing chamber; 7. a connector; 8. a heat exchanger; 801. a first air outlet pipe; 802. and a second air outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: the device comprises a device body 1, wherein a connecting ring 2 is fixedly connected to the outer side wall of the device body 1, a plurality of supporting legs 201 are fixedly connected to the outer side wall of the connecting ring 2 and used for supporting the device body, an ammonia evaporation chamber 5, a heat exchange chamber 4 and a mixed absorption chamber 6 are arranged inside the device body 1, a heat exchanger 8 is arranged inside the heat exchange chamber 4, and a second connecting pipe 102 and an air inlet pipe 103 are fixedly connected to the air inlet end of the heat exchanger 8;

the upper side wall fixedly connected with air pressure regulating valve 3 of device main part 1, the inside of air pressure regulating valve 3 is provided with carriage 302, the inside of carriage 302 is provided with spout 305, the inside sliding connection of spout 305 has sliding piston 304, a plurality of bleeder vents 303 after the inside of carriage 302 sets up, the inside of air pressure regulating valve 3 is provided with gas storage tank 307, it is linked together through gas storage tank 307 and bleeder vent 303 with spout 305 to adjust gas storage pipe 301, fixedly connected with reset spring 306 between the last inner wall of carriage 302 and sliding piston 304, when the inside atmospheric pressure of mixing absorption chamber 6 is too high, can promote sliding piston 304 to remove the upside of bleeder vent 303, thereby make the inside high-pressure gas of mixing absorption chamber 6 get into through bleeder vent 303 and gas storage tank 307 and adjust gas storage pipe 301, be convenient for the inside high-pressure gas of first outlet duct 801 to discharge.

Gas storage pipe 301 is adjusted to air pressure regulating valve 3's one end fixedly connected with, the inside of adjusting gas storage pipe 301 is provided with the check valve, the inside of ammonia still 5 is provided with connector 7, the last lateral wall of mixing absorption chamber 6 is fixed to come to connect first connecting pipe 101, be fixed connection between first connecting pipe 101 and the connector 7, the output fixed connection of second connecting pipe 102 and connector 7, the inside wall of ammonia still 5 is provided with ammonia outlet 104, the first outlet duct 801 of the output fixedly connected with and the second outlet duct 802 of heat exchanger 8, first outlet duct 801 is linked together with intake pipe 103, second outlet duct 802 is linked together with second connecting pipe 102.

The working principle is as follows: liquid ammonia in the liquid ammonia storage tank passes through the air inlet pipe 103, is decompressed and then enters the heat exchange chamber 4, is heated and evaporated under the heat exchange action of the heat exchanger 8, is extracted through the first air outlet pipe 801 and enters the mixed absorption chamber 6, high-temperature ammonia water is formed in the mixed absorption chamber 6 after bubbling, absorption, mixing and homogenizing of the mixed absorption chamber through the bubbling pipe, the high-temperature ammonia water enters the connector 7 through the first connecting pipe 101, the temperature is reduced, and a cold source is cooling water of the cooling tower; the high-temperature ammonia water further passes through the heat exchanger 8 to further reduce the temperature; and finally pumped to an ammonia storage tank through a second outlet pipe 802.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a liquid ammonia preparation aqueous ammonia integrated device for SOx/NOx control, includes device main part (1), its characterized in that: an ammonia evaporation chamber (5), a heat exchange chamber (4) and a mixing absorption chamber (6) are arranged in the device main body (1), a heat exchanger (8) is arranged in the heat exchange chamber (4), and a second connecting pipe (102) and an air inlet pipe (103) are fixedly connected with an air inlet end of the heat exchanger (8);

an air pressure adjusting valve (3) is fixedly connected to the upper side wall of the device main body (1), a sliding frame (302) is arranged inside the air pressure adjusting valve (3), a sliding groove (305) is arranged inside the sliding frame (302), a sliding piston (304) is connected inside the sliding groove (305) in a sliding mode, and a plurality of air holes (303) are formed in the sliding frame (302) later;

one end fixedly connected with of atmospheric pressure governing valve (3) adjusts gas receiver (301), the inside of adjusting gas receiver (301) is provided with the check valve, the inside of ammonia still room (5) is provided with connector (7).

2. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: the outer side wall of the device main body (1) is fixedly connected with a connecting ring (2), and the outer side wall of the connecting ring (2) is fixedly connected with a plurality of supporting legs (201).

3. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: the air pressure adjusting valve (3) is internally provided with an air storage groove (307), and the adjusting air storage pipe (301) is communicated with the sliding groove (305) through the air storage groove (307) and the air holes (303).

4. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: the upper side wall of the mixing absorption chamber (6) is fixedly connected with a first connecting pipe (101), and the first connecting pipe (101) is fixedly connected with the connecting head (7).

5. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: the second connecting pipe (102) is fixedly connected with the output end of the connector (7).

6. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: and an ammonia gas outlet (104) is formed in the inner side wall of the ammonia distillation chamber (5).

7. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: and a return spring (306) is fixedly connected between the upper inner wall of the sliding frame (302) and the sliding piston (304).

8. The integrated device for preparing ammonia water from liquid ammonia for desulfurization and denitrification according to claim 1, characterized in that: the output end of the heat exchanger (8) is fixedly connected with a first air outlet pipe (801) and a second air outlet pipe (802), the first air outlet pipe (801) is communicated with the air inlet pipe (103), and the second air outlet pipe (802) is communicated with the second connecting pipe (102).