CN209302202U - A kind of liquid ammonia evaporator for being easily installed and safeguarding - Google Patents
A kind of liquid ammonia evaporator for being easily installed and safeguarding Download PDFInfo
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- CN209302202U CN209302202U CN201822178039.9U CN201822178039U CN209302202U CN 209302202 U CN209302202 U CN 209302202U CN 201822178039 U CN201822178039 U CN 201822178039U CN 209302202 U CN209302202 U CN 209302202U
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- intermediate shell
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Abstract
The utility model relates to a kind of liquid ammonia evaporator for being easily installed and safeguarding, including evaporator shell, evaporator shell includes intermediate shell and head end lid and tail end cover that its both ends is connected respectively；It is equipped with tube sheet, tube sheet and intermediate shell at the docking of intermediate shell and head end lid and tail end cover surrounds third chamber；Partition is equipped in head end lid, the inner cavity that head end lid and tube sheet surround is separated into first chamber and second chamber by partition；Multiple groups heat exchanger tube is equipped in third chamber, two ports of heat exchanger tube are connected with first chamber and second chamber respectively；It is covered in head end and is respectively equipped with the first nozzle belt and the second nozzle belt, be equipped with liquefied ammonia entrance at the top of intermediate shell and gas ammonia outlet, bottom are equipped with the first, second drain；It is equipped with heating tube adapter tube and steam inlet on tail end cover, is connected with heating tube assembly in heating tube adapter tube.The utility model improves the maintenance conditions performance of equipment, reduces remaining liquefied ammonia to the body harm of service personnel.
Description
Technical field
The utility model belongs to liquid ammonia gasification equipment technical field more particularly to a kind of liquefied ammonia for being easily installed and safeguarding steams
Send out device.
Background technique
In China, industrial gasses equipment development is rapid, have been widely used with metallurgy, petrochemical industry, chemical fertilizer, town gas,
Etc. multiple industries.Illustrate by taking the denitrating flue gas of thermal power generation as an example, coal can generate nitrogen oxide NOx, nitrogen oxygen in combustion
Compound NOx is a kind of atmosphere pollution, and NOx can further generate photochemical fog in the presence of carbonaceous material,
More importantly NOx will form acid rain and destroy ozone layer, leads to greenhouse effects, brings to natural environment and human health
Serious harm.Therefore it is most important denitration to be carried out for flue gas, using ammonia as reducing agent by cigarette during denitrating flue gas
NOx in gas is reduced into N2 and H2O to realize the purpose of denitration.Liquid ammonia evaporator is to convert common liquid ammonia
For the equipment of gaseous ammonia.
Existing liquid ammonia evaporator is that end cap only is arranged in the side of cavity mostly, this is just the later period dimension of liquid ammonia evaporator
Shield causes certain difficulty, reduces the maintenance conditions performance of equipment, increases maintenance cost；In addition, being needed before overhaul of the equipments
The inner cavity of evaporator is emptied, but the inner cavity after emptying there will still likely be remaining liquefied ammonia, endanger the body of staff
Health.
Utility model content
The utility model is to solve technical problem present in well-known technique and provide a kind of liquid for being easily installed and safeguarding
The both ends of ammonia evaporator, this equipment all have end cap, are easily installed and safeguard, this equipment can evaporate liquefied ammonia raffinate complete.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique: one kind is convenient for peace
The liquid ammonia evaporator of dress and maintenance, is connected with the evaporator shell of pedestal including bottom, evaporator shell include intermediate shell and
The head end lid and tail end cover that its both ends is connected respectively；Longitudinally disposed pipe is equipped at the docking of intermediate shell and head end lid
Plate, tube sheet and intermediate shell and tail end cover surround third chamber jointly；In head end lid be equipped with laterally setting and with head end lid and
The partition that tube sheet is connected, under the inner cavity that head end lid and tube sheet surround is separated into the first chamber being located above and be located at by partition
The second chamber of side；In third chamber be equipped with multiple groups laterally setting and the heat exchanger tube with tube sheet Joint, two of heat exchanger tube
Port is connected with first chamber and second chamber respectively after running through tube sheet；It covers and is respectively equipped with and first chamber and in head end
The first nozzle belt and the second nozzle belt that two chambers are connected are equipped with liquefied ammonia entrance at the top of intermediate shell and gas ammonia export,
The first drain and the second drain are equipped in the bottom of intermediate shell；It is equipped with heating tube adapter tube on tail end cover and steam enters
Mouthful, end is removably connected on heating tube adapter tube deeply to the indoor heating tube assembly of third chamber.
The advantages and positive effects of the utility model are as follows: the utility model provides a kind of liquefied ammonia for being easily installed and safeguarding
Evaporator, compared with prior art, the utility model are mentioned by the way that head end lid and tail end cover is respectively set at the both ends of intermediate shell
The high maintenance conditions performance of equipment, reduces the maintenance cost of equipment；It, can be by setting heating tube assembly and steam inlet
It is passed through steam in the third chamber of emptying and the steam being passed through is heated the liquid in liquefied ammonia raffinate by heating tube assembly
Evaporator shell is discharged in ammoniaization, and then guarantees the health of service work personnel.
Preferably: intermediate shell is detachably connected with head end lid and tail end cover by ring flange realization respectively.
Preferably: pressure gauge connection and thermometer boss are equipped on intermediate shell.
Preferably: being equipped with upper interface of the level gauge, middle and lower part equipped with lower interface of the level gauge in the middle and upper part of intermediate shell.
Preferably: heating tube assembly includes that heating tube takes over the affixed flange being detachably connected, in the outside of affixed flange
It is connected with power interface, is connected on the inside of affixed flange deeply to realizing in third chamber and with power interface and to be electrically connected
Multiple groups electric heating tube.
Preferably: intermediate shell, head end lid and tail end cover are made of inside and outside two side body, inside and outside two side body it
Between be equipped with thermal insulation material.
Preferably: being equipped with demister in gas ammonia outlet.
Preferably: heat exchanger tube is U-shaped structure, and heat pipe can be exchanged by, which being arranged with outside multiple groups heat exchanger tube, plays constraint and support work
Support plate.
Preferably: offering observation panel on the outer wall of intermediate shell and be equipped with observation window on observation panel.
Detailed description of the invention
Fig. 1 is the main view broken section structural schematic diagram of the utility model；
Fig. 2 is the backsight structural representation of the utility model.
In figure: 1, evaporator shell；1-1, intermediate shell；1-2, head end lid；1-3, tail end cover；1-4, thermal insulation material；2,
Liquefied ammonia entrance；3, the first nozzle belt；4, first chamber；5, second chamber；6, the second nozzle belt；7, pedestal；8, the first drain；
9, the second drain；10, steam inlet；11, tube assembly is heated；11-1, power interface；11-2, affixed flange；11-3, electricity add
Heat pipe；12, heating tube is taken over；13, third chamber；14, gauge manifold；15, gas ammonia exports；16, partition；17, tube sheet；18,
Heat exchanger tube；19, support plate；20, demister；21, observation window；22, sealing ring；23, upper interface of the level gauge；24, lower liquidometer connects
Mouthful；25, thermometer boss.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, hereby lifts following embodiment and be described in detail
It is as follows:
It is connected with referring to Figure 1 with Fig. 2, the liquid ammonia evaporator for being easily installed and safeguarding of the utility model, including bottom
The evaporator shell 1 of pedestal 7, evaporator shell 1 include the intermediate shell 1-1 and head end lid 1-2 that its both ends is connected respectively
With tail end cover 1-3；Intermediate shell 1-1 is detachably connected with head end lid 1-2 and tail end cover 1-3 by ring flange realization respectively.?
Sealing ring 22 is equipped at the docking of intermediate shell 1-1 and tail end cover 1-3.Intermediate shell 1-1, head end lid 1-2 and tail end cover 1-3 are equal
It is made of inside and outside two side body, thermal insulation material 1-4 is equipped between inside and outside two side body.On the outer wall of intermediate shell 1-1
It offers observation panel and is equipped with observation window 21 on observation panel.
Longitudinally disposed tube sheet 17, tube sheet 17 and intermediate shell are equipped at the docking of intermediate shell 1-1 and head end lid 1-2
1-1 and tail end cover 1-3 surround third chamber 13 jointly；In head end lid 1-2 be equipped with laterally setting and with head end lid 1-2 and tube sheet
The inner cavity that head end lid 1-2 and tube sheet 17 surround is separated into the first chamber 4 being located above by 17 partitions 16 being connected, partition 16
With underlying second chamber 5.
Multiple groups laterally setting and the heat exchanger tube 18 with 17 Joint of tube sheet are equipped in third chamber 13, heat exchanger tube 18 is U
Type structure, the support plate 19 that heat pipe 18 plays constraint and supporting role can be exchanged by being arranged with outside multiple groups heat exchanger tube 18.Heat exchanger tube
18 two ports are connected with first chamber 4 and second chamber 5 respectively after running through tube sheet 17.
The first nozzle belt 3 and second being connected with first chamber 4 and second chamber 5 is respectively equipped on head end lid 1-2
Nozzle belt 6 is equipped with liquefied ammonia entrance 2 and gas ammonia outlet 15 at the top of intermediate shell 1-1, is equipped with demister in gas ammonia outlet 15
20.The first drain 8 and the second drain 9 are equipped in the bottom of intermediate shell 1-1.Pressure gauge is equipped on intermediate shell 1-1
Interface 14 and thermometer boss 25.Upper interface of the level gauge 23, middle and lower part are equipped with equipped with lower liquid level in the middle and upper part of intermediate shell 1-1
Count interface 24.
It is equipped with heating tube adapter tube 12 and steam inlet 10 on tail end cover 1-3, is detachably connected on heating tube adapter tube 12
There is end deeply to the heating tube assembly 11 in third chamber 13.Heating tube assembly 11 includes that heating tube adapter tube 12 is detachably connected
Affixed flange 11-2, be connected with power interface 11-1 on the outside of affixed flange 11-2, it is solid in the inside of affixed flange 11-2
It is connected to and deeply realizes the multiple groups electric heating tube 11-3 being electrically connected in third chamber 13 and with power interface 11-1.
The course of work: being passed through liquefied ammonia at liquefied ammonia entrance 2 and guarantees that the top of third chamber 13 has enough gas phases empty
Between, steam or hot water are passed through in the first nozzle belt 3, steam or hot water flow into heat exchanger tube 18, raw under the heating of heat exchanger tube 18
Subsequent handling is entered from gas ammonia outlet 15 by demister 20 at ammonia；Before overhaul of the equipments, turns off liquefied ammonia entrance 2 and gas ammonia goes out
Mouthfuls 15 valve terminates the heat supply of steam or hot water, opens the first drain 8 and the second drain 9, in evaporator shell 1
After liquefied ammonia empties, the first drain 8 and the second drain 9 are closed, steam is passed through at steam inlet 10, opens heating tube assembly
11, it is exchanged heat using electric heating tube 11-3 and further evaporates remaining liquefied ammonia on 1 inner wall of evaporator shell, it is residual to the liquefied ammonia in equipment
Surplus comply with standard shut down steam be passed through and heat tube assembly 11, staff can carry out the detection check man in equipment
Make.
Claims (9)
1. a kind of liquid ammonia evaporator for being easily installed and safeguarding, it is characterized in that: including the evaporator shell that bottom is connected with pedestal (7)
Body (1), evaporator shell (1) include intermediate shell (1-1) and head end lid (1-2) and tail end cover that its both ends is connected respectively
(1-3)；Longitudinally disposed tube sheet (17) is equipped at the docking of intermediate shell (1-1) and head end lid (1-2), tube sheet (17) is in
Between shell (1-1) and tail end cover (1-3) surround third chamber (13) jointly；Be equipped in the head end lid (1-2) laterally setting and with
The partition (16) that head end lid (1-2) is connected with tube sheet (17), partition (16) surround head end lid (1-2) with tube sheet (17) interior
Chamber is separated into the first chamber (4) and underlying second chamber (5) being located above；Multiple groups are equipped in third chamber (13)
Distinguish afterwards through tube sheet (17) two ports of laterally setting and the heat exchanger tube (18) with tube sheet (17) Joint, heat exchanger tube (18)
It is connected with first chamber (4) and second chamber (5)；It is respectively equipped on head end lid (1-2) and first chamber (4) and the second chamber
The first nozzle belt (3) and the second nozzle belt (6) that room (5) is connected are equipped with liquefied ammonia entrance at the top of intermediate shell (1-1)
(2) and gas ammonia exports (15), is equipped with the first drain (8) and the second drain (9) in the bottom of intermediate shell (1-1)；In tail
End cap (1-3) is equipped with heating tube adapter tube (12) and steam inlet (10), is removably connected with end on heating tube adapter tube (12)
Portion is deeply to the heating tube assembly (11) in third chamber (13).
2. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: intermediate shell (1-1) is respectively
It is detachably connected with head end lid (1-2) and tail end cover (1-3) by ring flange realization.
3. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: on intermediate shell (1-1)
Equipped with pressure gauge connection (14) and thermometer boss (25).
4. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: in intermediate shell (1-1)
Middle and upper part is equipped with upper interface of the level gauge (23), middle and lower part is equipped with lower interface of the level gauge (24).
5. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: heating tube assembly (11) includes
The affixed flange (11-2) that heating tube adapter tube (12) is detachably connected, is connected with power interface on the outside of affixed flange (11-2)
(11-1) is connected with deeply interior to third chamber (13) on the inside of affixed flange (11-2) and realizes with power interface (11-1)
The multiple groups electric heating tube (11-3) of electrical connection.
6. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: intermediate shell (1-1), head end
Lid (1-2) and tail end cover (1-3) are made of inside and outside two side body, and thermal insulation material (1- is equipped between inside and outside two side body
4).
7. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: being set in gas ammonia outlet (15)
There are demister (20).
8. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: heat exchanger tube (18) is U-shaped knot
Structure is arranged with the support plate (19) that can be exchanged heat pipe (18) and play constraint and supporting role outside multiple groups heat exchanger tube (18).
9. the liquid ammonia evaporator for being easily installed and safeguarding as described in claim 1, it is characterized in that: in intermediate shell (1-1)
Observation panel is offered on outer wall and is equipped with observation window (21) on observation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178039.9U CN209302202U (en) | 2018-12-24 | 2018-12-24 | A kind of liquid ammonia evaporator for being easily installed and safeguarding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178039.9U CN209302202U (en) | 2018-12-24 | 2018-12-24 | A kind of liquid ammonia evaporator for being easily installed and safeguarding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209302202U true CN209302202U (en) | 2019-08-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822178039.9U Active CN209302202U (en) | 2018-12-24 | 2018-12-24 | A kind of liquid ammonia evaporator for being easily installed and safeguarding |
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| CN (1) | CN209302202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302567A (en) * | 2020-03-10 | 2020-06-19 | 重庆工业职业技术学院 | Evaporator of sewage biochemical treatment device |
-
2018
- 2018-12-24 CN CN201822178039.9U patent/CN209302202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302567A (en) * | 2020-03-10 | 2020-06-19 | 重庆工业职业技术学院 | Evaporator of sewage biochemical treatment device |
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