CN206295830U - Match somebody with somebody ammonia system in a kind of denitration furnace - Google Patents

Abstract

The utility model discloses in a kind of denitration furnace match somebody with somebody ammonia system, first to complete with ammonia process, now except closing magnetic valve one, other valves are opened outdoors manually for magnetic valve two and bypass, ammonia steam in liquefied ammonia station manually door one, manually operated door two, it is pneumatic to close the door soon, manually operated door three, enter ammonia solution case four after hand reducing pressure valve, ammonia solution case three, ammonia solution case two and ammonia solution case one, while pressure gauge four, pressure gauge three, pressure gauge two and pressure gauge one respectively to for ammonia solution case in pressure be monitored, when the electrical conductivity conductance in each ammonia solution case rises to 1000 μ S/cm, complete to match somebody with somebody ammonia process, then open again magnetic valve once and stop valve can to a stove denitrification apparatus and No. two stove denitrification apparatus in ammonia is provided.The present apparatus solves Traditional Man and ammoniacal liquor or changes liquid ammonia steel bottle, the big problem of the working strength of operations staff, while be easy to constitute automatic production line, with simple to operate, the measured advantage of matter.

Description

Match somebody with somebody ammonia system in a kind of denitration furnace

Technical field

The utility model is related to ammonia solution preparation technique field, it is adaptable to power plant's feedwater, condensate, close cold water with ammonia System.

Background technology

Thermal power plant, the water supply system of nuclear power station generally use ammonification anti-corrosion, and are used mostly ammoniacal liquor at present and are configured to necessarily The water supply system of unit is added to after the ammoniacal liquor of concentration.People will touch ammoniacal liquor during ammoniacal liquor is configured, therefore occupation is pacified Affect entirely.

Existing with ammonia tank at present, the agent structure of its equipment is complex, and the course of work is more complicated, although Neng Gouman The basic production and processing of foot needs, but its operating process is relatively complicated, and operation difficulty is larger, causes labor strength larger, Smooth implementation to associated production operation brings inconvenience.Therefore, how to cause that the structure with ammonia tank is simpler, and make It is important technological problems that those skilled in the art need to solve at present that its course of work is more simple and easy to do.

In order to improve the quality of ammoniacal liquor configuration, with ammonia cost etc., technical staff is matching somebody with somebody for reduces cost and simple flow, reduction Constantly improvement is carried out in the equipment of ammonia.In the existing equipment with ammonia, the technical literature for the automatic dispensing of ammoniacal liquor has：

Chinese invention patent【201510208549.4】Disclose " a kind of automatically with ammonia device and automatically with ammonia method ", bag Include be connected automatically with ammonia switch board and Scatula and anti-the escaping of ammonia device and ammonia detection and warning system；Using with match somebody with somebody The electrical conductivity of ammoniacal liquor in the conductivity meter detection Scatula of the conductance electrode connection in medicine-chest, by automatically with ammonia switch board PLC is converted into the concentration of ammoniacal liquor, and when the concentration is less than setting value, PLC sends the electrically operated valve that instruction unpack enters ammonia, when PLC sends the electrically operated valve for instructing and closing into ammonia when the concentration of ammoniacal liquor reaches setting value in Scatula；When medicine-chest liquid level is less than During the lower bound position of setting value, PLC sends instruction and opens demineralized water water inlet electrically operated valve, when liquid level reaches the high spacing of setting value When, PLC sends instruction and closes demineralized water water inlet electrically operated valve.The device combines the electric detective technology more than comparing, system Complex structure, but it is very simple feedback control in control aspect without creativeness, and secondly there is environment dirt in the device The hidden danger of dye.

Chinese invention patent【201510208549.4】Disclose " one kind is with ammonia tank ", including tank body, the tank body middle part There is feed water inlet, inlet and the discharging opening being connected with the reaction chamber, the reaction chamber with reaction chamber, on the tank body Cavity wall and the tank body between form cooling sandwith layer, have on the tank body water filling port that is connected with the cooling sandwith layer and Discharge outlet.In the course of work, the water filling port is first passed through to being passed through cooling water in the cooling sandwith layer to ensure the reaction chamber Interior environment temperature, afterwards by the feed water inlet to being passed through pure water in the reaction chamber, while by the inlet to Liquefied ammonia is passed through in the reaction chamber, after liquefied ammonia is dissolved in and forms ammoniacal liquor in pure water, by the discharging opening by obtained ammonia Water finished product is exported to External memory equipment.Simple structure of the present invention, but to the not comprehensive enough of the details consideration with ammonia process, Such as detect, control does not embody with problem of environmental pollution, automaticity is not high, and very simple and crude.

In sum, it is existing with being come with some shortcomings in ammonia device and system, mainly include：It is creative low, from Dynamicization degree is not high, environmental pollution treatment not science the problems such as.

The content of the invention

The utility model is provided matches somebody with somebody ammonia system in a kind of denitration furnace, using the ammonia steam used in denitrification process as raw material Configuration ammonia solution, solves tradition with ammonia device using human configuration mode, by manually adding barreled ammoniacal liquor to ammonia batch meter Problem.

Match somebody with somebody ammonia system in a kind of denitration furnace, in the upstream of system, the liquefied ammonia station is by stainless steel tube and electricity for liquefied ammonia erect-position Magnet valve one and stop valve are connected, and the front end of magnetic valve one and stop valve is respectively connected to a denitrification apparatus and magnetic valve two, electricity The front end of magnet valve two then connects No. two denitrification apparatus, and the joint by threeway between the stop valve and magnetic valve two connects hand Dynamic door one, the element for connecting with the front end of manually operated door one and mutually going here and there from beginning to end successively respectively manually operated door two, startup are closed the door and hand soon Dynamic door three, what is be mounted in parallel with foregoing three is bypass manually operated door, that is, bypass the front-end and back-end of manually operated door respectively with manually operated door Two and manually operated door three front-end and back-end connection, and then the rear end of manually operated door three be hand reducing pressure valve, in the hand reducing pressure An open type parallel circuits are connected after valve, is respectively parallel arrangement of pressure gauge four, pressure gauge three, pressure gauge two and pressure gauge One, ammonia solution case four, ammonia solution case three, ammonia solution case two and ammonia are then accessed by stainless steel tube respectively in each manometric rear end In liquor box one, an electrical conductivity gauge head is respectively mounted in each ammonia solution case.

The magnetic valve one is switched for a closed type, and only the magnetic valve one could be beaten when magnetic valve two is opened Open.

Remarkable result of the present utility model is：

1st, present apparatus device can be saved manually fall ammoniacal liquor or change liquid ammonia steel bottle, reduce the working strength of operations staff.

2nd, automatically controlling or remote control for ammoniacal liquor process for preparation is realized, contact of the reduction personnel with ammonia reduces occupation It is critically ill harmful generation, protection operations staff's is healthy.

3rd, after using the system, by virtual protection and monitoring, alarming function, ensure that the security in ammoniacal liquor use.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.Wherein：1- liquefied ammonia station；2- stainless steel tubes；3- magnetic valves one；4- mono- Number stove denitrification apparatus；No. bis- stove denitrification apparatus of 5-；6- magnetic valves two；7- manually operated doors two；8- startups are closed the door soon；9- precision processing adds Between medicine；10- manually operated doors three；11- hand reducing pressure valves；12- ammonia solutions case one；13- ammonia solutions case two；14- ammonia solutions case three；15- Ammonia solution case four；16- electrical conductivity gauge heads；17- pressure gauges four;18- pressure gauges three；19- pressure gauges two；20- pressure gauges one；21- Manually operated door one;22- stop valves；23- bypasses manually operated door.

Specific embodiment

Illustrated shown in compares figure 1, to ensure that the present apparatus realizes expected function, ready work is needed before work Make, because ammonia is a kind of corrosive gas, and the production environment of denitration is more severe, should be again before device is operated Whether point inspection magnetic valve one 3, magnetic valve 26 is normal with the work of the connection and liquefied ammonia station 1 at liquefied ammonia station 1, checks hand Can dynamic door 27, startup 8, manually operated door 3 10 of closing the door soon realize its function, while ensureing that each parts reliably connect Connect, it is to avoid the appearance of security incident and leakage occur, then can not start a stove denitrification apparatus 4 and No. two using first The mode of stove denitrification apparatus 5, closes magnetic valve 1, magnetic valve 26 and bypass manually operated door 23, opens manually operated door 1 and cut-off Valve 22, while starting liquefied ammonia station 1, checks whether the flow process of working medium is normal, and so far device completes preparation.

When the present apparatus is normally run, first to complete with ammonia process, now except closing magnetic valve 1, magnetic valve 26 and bypass The outer others valves of manually operated door 23 are opened, the ammonia steam in liquefied ammonia station 1 manually door 1, manually operated door 27, pneumatic quick closing valve Enter ammonia solution case 4 15, ammonia solution case 3 14, ammonia solution case 2 13 and ammonia after door 8, manually operated door 3 10, hand reducing pressure valve 11 molten Liquid case 1, at the same pressure gauge 4 17, pressure gauge 3 18, pressure gauge 2 19 and pressure gauge 1 respectively to for ammonia solution case Interior pressure is monitored, and controls that automatically configuring for ammoniacal liquor can be realized by PLC, and the automatic of ammonia is leaked in automatically adjusting for concentration Alarm.When the electrical conductivity conductance in each ammonia solution case rises to 1000 μ S/cm, complete to match somebody with somebody ammonia process, magnetic valve is then opened again 1 and stop valve 22 just can be to providing ammonia in a stove denitrification apparatus 4 and No. two stove denitrification apparatus 5.

Claims (2)

1. ammonia system, including liquefied ammonia station are matched somebody with somebody in a kind of denitration furnace（1）With a stove denitrification apparatus（4）, No. two stove denitrification apparatus （5）, it is characterised in that：Liquefied ammonia station（1）Positioned at the upstream of system, the liquefied ammonia station（1）By stainless steel tube（2）With magnetic valve one （3）And stop valve（22）Connection, and magnetic valve one（3）And stop valve（22）Front end be respectively connected to a denitrification apparatus（4）With Magnetic valve two（6）, magnetic valve two（6）Front end then connect No. two denitrification apparatus（5）, in the stop valve（22）With magnetic valve two （6）Between manually operated door one is connected by the joint of threeway（21）, with manually operated door one（21）Front end connect and successively head and the tail mutually go here and there Element be respectively manually operated door two（7）, start close the door soon（8）With manually operated door three（10）, what is be mounted in parallel with foregoing three is side Road manually operated door（23）, that is, bypass manually operated door（23）Front-end and back-end respectively with manually operated door two（7）With manually operated door three（10）Before End and rear end connect, and then manually operated door three（10）Rear end be hand reducing pressure valve（11）, in the hand reducing pressure valve（11）Afterwards One open type parallel circuits of connection, are respectively parallel arrangement of pressure gauges four（17）, pressure gauge three（18）, pressure gauge two（19）With Pressure gauge one（20）, stainless steel tube is then passed through respectively in each manometric rear end（2）Access ammonia solution case four（15）, ammonia solution case Three（14）, ammonia solution case two（12）With ammonia solution case one（11）In, an electrical conductivity has been respectively mounted in each ammonia solution case Gauge head（16）.

2. ammonia system is matched somebody with somebody in a kind of denitration furnace according to claim 1, it is characterised in that：The magnetic valve one（3）For normal Closed form is switched, only when magnetic valve two（6）The magnetic valve one when opening（3）Could open.