CN202876648U - Denitration process system - Google Patents
Denitration process system Download PDFInfo
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- CN202876648U CN202876648U CN 201220542510 CN201220542510U CN202876648U CN 202876648 U CN202876648 U CN 202876648U CN 201220542510 CN201220542510 CN 201220542510 CN 201220542510 U CN201220542510 U CN 201220542510U CN 202876648 U CN202876648 U CN 202876648U
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- ammonia
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Abstract
The utility model provides a denitration process system comprising an ammonia storage tank, a waste ammonia recovering tank and a high-grade ammonia storage tank, wherein the ammonia storage tank is connected with the high-grade ammonia storage tank through a pipeline, the ammonia storage tank and the high-grade ammonia storage tank are respectively connected with an ammonia gas supply pipeline through an ammonia pouring pump for transmitting ammonia water, the high-grade ammonia storage tank is connected with an injection system, the injection system is internally provided with an injection pump for injecting the ammonia gas, the pipeline is provided with a decompression valve and a pressure equalizing valve, the decompression valve is used for controlling a switch and regulating the air pressure,, the ammonia pouring pump and the injecting pump are respectively connected with the waste ammonia recovering tank through the pipeline, the pipeline is provided with an ammonia discharge inverse sprinkling valve for controlling the discharge of the ammonia water, and the waste ammonia recovering tank, the ammonia storage tank and the high-grade ammonia storage tank are mutually connected through pipelines and are respectively connected with pressure equalizing system pipelines. The denitration process system disclosed by the utility model is additionally provided with a waste ammonia recovering system so as to avoid the external discharge of ammonia, modify the field operation environment and ensure that the pressure of each ammonia tank is not excessive and the ammonia pouring pump regularly works.
Description
Technical field
The utility model relates to a kind of denitrating technique system, is specifically related to a kind of environmental protection denitrating technique system that can reclaim useless ammonia recycling.
Background technology
Present cement, waste incineration, the denitration engineerings such as industry denitrating flue gas such as thermoelectricity are mainly taked take ammoniacal liquor as reducing agent SNCR, the SCR denitration technology, existing denitrating technique system is for using in the less situation of useless ammonia when design, but be subjected to the impact of enterprise's production status condition and denitration device unfailing performance, the denitration device start and stop, maintenance is frequent, the useless ammonia that produces is relatively many, therefore the equipment start-stop in the present employed denitrating technique system, the useless ammonia that produces in the maintenance process can only naturally discharge or discharge with the dilution water flushing, because amount is relatively large, naturally discharging and dilution water flushing discharging still can bring potential safety hazard to the site operation personnel, the useless ammonia of waste can not effective recycling, also increase the use amount to reducing agent, the waste resource.
The utility model content
The purpose of this utility model is the useless ammonia in the effective treatment process system, avoids potential safety hazard and the wasting of resources.
The utility model adopts following technical scheme:
A kind of denitrating technique system; comprise storage ammonia tank; ammonia reclaims storage tank and high-order ammonia storage tank; described storage ammonia tank is connected with high-order ammonia storage tank through pipeline; described storage ammonia tank links to each other with the ammoniacal liquor supply line through the ammonia pump that falls for transfer ammoniacal liquor respectively with high-order ammonia storage tank; described high-order ammonia storage tank links to each other with spraying system; be provided with in the described spraying system for the jet pump that sprays ammoniacal liquor; be equipped with relief valve and equalizing valve for gauge tap and adjustable pressure on the described pipeline; described ammonia pump links to each other with described useless ammonia recycling can through pipeline respectively with jet pump; described pipeline is provided with for the ammonia excretion of control ammoniacal liquor discharging and drenches valve; described useless ammonia recycling can; storage ammonia tank and high-order ammonia storage tank through pipeline interconnect and respectively be used for regulating that pressure balanced balanced pressure system pipeline is connected between each equipment; described balanced pressure system is wrapped in the relief valve of control pipelining and adjustable pipe linear pressure; equalizing valve and for the protection of the safety valve of security of system; described relief valve is located at the above the equalizing valve of two bypasses of described safety valve and connects described useless ammonia recycling can with safety valve; storage ammonia tank is equipped with equalizing valve with being connected on ammonia storage tank and the pipeline that balanced pressure system is connected.
Described storage ammonia tank links to each other with described useless ammonia recycling can through pipeline with high-order ammonia storage tank, is respectively equipped with on the described pipeline for the relief valve of regulating pressure with for the ammonia excretion of control ammoniacal liquor discharging to drench valve; The power set of described useless ammonia recycling can through being used for transfer ammoniacal liquor are connected with storage ammonia tank pipeline, and described pipeline is provided with the ammoniacal liquor recovery valve; Set up a high-order blow-down pipe separately on described useless ammonia recycling can and the pipeline that balanced pressure system is connected.
The utility model beneficial effect: to set up a useless ammonia recycling can outward coupled by falling ammonia pump and jet pump connecting line, equipment can started like this, ammonia pump is not looked up and down, the useless ammonia of discharging during overhaul of the equipments is recovered in the useless ammonia recycling can, the equipment of stopping is because of start and stop, the a large amount of ammoniacal liquor that produce during maintenance maintenance efflux phenomenon, can there be potential safety hazard, storage ammonia tank and high-order ammonia storage tank are linked to each other can be with maintenance the time ammoniacal liquor discharging in the tank totally with useless ammonia recycling can pipeline, external balanced pressure system can allow and keep pressure balance between the system, safety valve is arranged on the pipeline of balanced pressure system, reduce the use amount of safety valve, utilize will give up useless ammonia in the ammonia recycling can of power set to pour in the storage ammonia tank and can continue to use as reducing agent, the cost of having saved a resource shrinkage, useless ammonia recycling can bypass links to each other with high-order blow-down pipe, and the system that guarantees behind the ammonia ammonia storage tank that gives up normally uses.
Description of drawings
Fig. 1 is that denitrating system ammonia stores delivery technology flow chart schematic diagram.
Among the figure: 1, safety valve, 2, high-order blow-down pipe, 3, relief valve, 3-1, relief valve a, 3-2, relief valve b, 4, equalizing valve, 4-1, equalizing valve a, 4-2, equalizing valve b, 4-3, equalizing valve c, 5, storage ammonia tank, 5-1, Pressure gauge, 6, the compressed nitrogen pipeline, 7, useless ammonia recycling can, 8, useless ammonia recovery valve, 9, the ammoniacal liquor supply line, 10, fall ammonia valve, 11, high-order ammonia storage tank inlet valve, 12, useless ammonia recovery tube, 12-1, valve a is drenched in ammonia excretion, 12-2, valve b, 12-3 are drenched in ammonia excretion, valve c, 12-4 are drenched in ammonia excretion, valve d is drenched in ammonia excretion, 13, fall ammonia pump, 14, jet pump, 15, spray gun, 16, high-order ammonia storage tank
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, be denitrating technique system connection diagram in the utility model, comprise storage ammonia tank 5 and high-order ammonia storage tank 16, storage ammonia tank 5 is provided with a Pressure gauge 5-1 that can show at any time the tank internal pressure, be communicated with through pipeline between storage ammonia tank 5 and the high-order ammonia storage tank 16, pipeline is provided with for control ammoniacal liquor transfer switch and controls ammonia valve 10 and the high-order ammonia storage tank inlet valve 11 that high-order ammonia storage tank 16 ammoniacal liquor enter, ammoniacal liquor supply line 9 warps ammonia pump 13 link to each other with the connecting line of storage ammonia tank 5 and high-order ammonia storage tank 16 respectively, high-order ammonia storage tank 16 links to each other with spraying system, spraying system is mainly at high-order ammonia storage tank 16 pipeloops and connects a jet pump 14, be respectively equipped with relief valve 3 and equalizing valve 4 on the jet pump 14 turnover pipelines and be connected to spray gun 15 at pipeline, the outlet of ammonia pump 13 and jet pump 14 and storage ammonia tank 5 and high-order ammonia storage tank 16 are communicated with useless ammonia recycling can 7 pipelines through pipeline respectively, on the pipeline respectively corresponding being provided with for the ammonia excretion of control ammoniacal liquor discharging drench valve b9-2, valve d9-4 is drenched in ammonia excretion, valve a9-1 is drenched in ammonia excretion and valve c9-3 is drenched in ammonia excretion, in order to allow storage ammonia tank 5, air pressure balance and safe operation between high-order ammonia storage tank 16 and the useless ammonia recycling can 7, set up an external balanced pressure system, balanced pressure system is connected to storage ammonia tank 5 through pipeline respectively, on useless ammonia recycling can 7 and the high-order ammonia storage tank 16, balanced pressure system connects on the pipeline of each storage tank and is respectively equipped with equalizing valve a4-1, equalizing valve b4-2 and equalizing valve c4-3, balanced pressure system is by safety valve 1 of unified installation, establish equalizing valve 4 and relief valve a3-1 in two bypasses that safety valve 1 sets up separately, safety valve 1 is installed on the balanced pressure system as safe master control valve, when the assurance system can superpressure, reduced the use amount of safety valve 1; Useless ammonia recycling can 7 is communicated with the ammonia recycling of will wherein giving up with storage ammonia tank 5 by pipeline, for Cost reduction and convenient can directly compressed nitrogen pipeline 6 in the system access in the useless ammonia recycling can 7 as power set provide power source for it, also can select pump and other power set, but since high cost not as preferred version.So, native system can guarantee storage ammonia tank by falling ammonia pump 13 to the carrying out smoothly of high-order ammonia storage tank 16 processes of falling ammonia, can realize again that ammonia excretion falls to drench to work; The deposed ammonia that useless ammonia recycling can is 7 li utilizes low-pressure nitrogen pipeline 7 that it is back in the storage ammonia tank 5, namely realizes turning waste into wealth, and useless ammonia recycling can 7 is provided with the high-order blow-down pipe 2 of independent safety, and high-order blow-down pipe 2 is provided with relief valve b3-2.
Workflow: external ammoniacal liquor passes through ammoniacal liquor supply pipeline 9 when unloading ammonia, ammonia pump 13, the ammonia valve 10 that falls enter in the ammonia storage tank 5 and store, the ammoniacal liquor that is stored in 5 li of ammonia storage tanks passes through ammonia pump 13, high-order ammonia storage tank inlet valve 11 enters high-order ammonia storage tank 16, and the ammoniacal liquor of high-order ammonia storage tank 16 is sprayed in the nitrogenous flue gas by jet pump 14, spray gun 15; The deposed ammonia that produces during equipment start-stop, the maintenance maintenance drenches valve by each ammonia excretion and enters in the ammonia recycling can 7 that gives up through useless ammonia recovery tube 12, and the deposed ammonia that is recovered to 7 li of useless ammonia recycling cans turns back to realization recycling in the ammonia storage tank 5 by low-pressure nitrogen or other dynamical system (equipment) through useless ammonia recycling can 7 controls; Increase useless 7 pairs of useless ammonia of ammonia recycling can and carry out recycling, improve the ammonia excretion safety coefficient and improve field maintenance operating personnel working environment; By setting up high-order blow-down pipe 2 can improve down the useless execute-in-place environment of ammonia recycling can 7 in pressure leak process behind the ammonia, required various valves are set as the stable assurance of whole system running by the demand correspondence on other pipelines in the native system.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. denitrating technique system, comprise storage ammonia tank and high-order ammonia storage tank, described storage ammonia tank is connected with high-order ammonia storage tank through pipeline, described storage ammonia tank links to each other with the ammoniacal liquor supply line through the ammonia pump that falls for transfer ammoniacal liquor respectively with high-order ammonia storage tank, described high-order ammonia storage tank links to each other with spraying system, be provided with in the described spraying system for the jet pump that sprays ammoniacal liquor, it is characterized in that: this system is provided with useless ammonia recycling can, described ammonia pump links to each other with described useless ammonia recycling can through pipeline respectively with jet pump, described pipeline is provided with for the ammonia excretion of control ammoniacal liquor discharging and drenches valve, described useless ammonia recycling can, storage ammonia tank and high-order ammonia storage tank through pipeline interconnect and respectively be used for regulating that pressure balanced balanced pressure system pipeline is connected between each equipment.
2. denitrating technique according to claim 1 system; it is characterized in that: described balanced pressure system is wrapped in the relief valve, equalizing valve of control pipelining and adjustable pipe linear pressure and for the protection of the safety valve of security of system; described relief valve is located in two bypasses of described safety valve, and described equalizing valve is connected with safety valve.
3. denitrating technique according to claim 2 system, it is characterized in that: described storage ammonia tank and high-order ammonia storage tank are communicated with described useless ammonia recycling can through pipeline, are respectively equipped with on the described pipeline for relief valve and the described ammonia excretion of adjustable pipe linear pressure and drench valve.
4. according to claim 1 to 3 arbitrary described denitrating technique systems, it is characterized in that: the power set of described useless ammonia recycling can through being used for shifting ammoniacal liquor are connected with storage ammonia tank pipeline, and described pipeline is provided with the ammonia recovery valve that gives up.
5. denitrating technique according to claim 2 system is characterized in that: set up a high-order blow-down pipe separately on described useless ammonia recycling can and the pipeline that balanced pressure system is connected.
6. according to claim 1 to 3 arbitrary described denitrating technique systems, it is characterized in that: described storage ammonia tank is provided with Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542510 CN202876648U (en) | 2012-10-23 | 2012-10-23 | Denitration process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542510 CN202876648U (en) | 2012-10-23 | 2012-10-23 | Denitration process system |
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| Publication Number | Publication Date |
|---|---|
| CN202876648U true CN202876648U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220542510 Expired - Fee Related CN202876648U (en) | 2012-10-23 | 2012-10-23 | Denitration process system |
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| CN (1) | CN202876648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978380A (en) * | 2016-10-25 | 2018-05-01 | 广东核电合营有限公司 | A kind of sodium ion control device of nuclear power plant containment shell spray system |
-
2012
- 2012-10-23 CN CN 201220542510 patent/CN202876648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978380A (en) * | 2016-10-25 | 2018-05-01 | 广东核电合营有限公司 | A kind of sodium ion control device of nuclear power plant containment shell spray system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20161023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |