CN105841412A - Emergency ammonia draining system for refrigerating system and operating method - Google Patents
Emergency ammonia draining system for refrigerating system and operating method Download PDFInfo
- Publication number
- CN105841412A CN105841412A CN201610343336.7A CN201610343336A CN105841412A CN 105841412 A CN105841412 A CN 105841412A CN 201610343336 A CN201610343336 A CN 201610343336A CN 105841412 A CN105841412 A CN 105841412A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- pressure
- storage tank
- low pressure
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
Abstract
The invention relates to the technical field of refrigeration and particularly relates to an emergency ammonia draining system for a high-pressure ammonia storage device and a low-pressure ammonia storage device of a refrigeration system. The emergency ammonia draining system comprises a refrigerating compressor, an oil separator, a condenser, a high-pressure ammonia storage device and a low-pressure ammonia storage device, an evaporator and an emergency ammonia drainer, wherein a high-pressure sensor is arranged on the high-pressure ammonia storage device, a low-pressure sensor is arranged on the low-pressure ammonia storage device, both the high-pressure ammonia storage device and the low-pressure ammonia storage device are connected to the emergency ammonia drainer, and the emergency ammonia drainer is connected to a stock water source and a water storage pond; a water path electromagnetic valve is arranged between the stock water source and the emergency ammonia drainer; a high-pressure ammonia draining electromagnetic valve and a high-pressure ammonia draining flow detection device are successively arranged between the high-pressure ammonia storage device and the emergency ammonia drainer, and a low-pressure ammonia draining electromagnetic valve and a low-pressure ammonia draining flow detection device are successively arranged between the low-pressure ammonia storage device and the emergency ammonia drainer.
Description
Technical field
The present invention relates to refrigeration technology field, the especially superpressure of the Liquid Ammonia Storage equipment of refrigeration system lets out ammonia peace
Full technology, can prevent the security incident occurred due to Liquid Ammonia Storage equipment superpressure, refers specifically to a kind of refrigeration system
With promptly letting out ammonia system and operational approach.
Background technology
Ammonia uses in refrigeration systems as cold-producing medium, both will not over the ground ball atmospheric ozone layer produce destroy,
Also will not produce carbon dioxide and cause greenhouse effect.Ammonia has that normal boiling point is low, condensing pressure and evaporating pressure
The advantages such as moderate, unit mass refrigerating capacity is big, are widely used in the refrigeration system that many is large-scale.Meanwhile,
Ammonia is poisonous, pungent has explosion danger with air after mixing, and ammonia is to spinosities such as the eye of human body, nose, larynxs
Swashing effect, suck a large amount of ammonia and the short time can be caused to have a stuffy nose, and cause sensation of asphyxia, eye contact easily causes stream
Tear, should be careful during contact.Therefore, in ammonia refrigeration system, corresponding safety measure should be taked.
Emergency ammonia drainer is exactly one of safety equipment of ammonia refrigeration system.Once there is serious contingency in system,
In order to protect equipment and personal safety or Accident prevention to expand, the ammonia in system just can be by promptly letting out ammonia
Device is expelled to large-scale cistern or cesspool.Current ammonia refrigeration system, although be all provided with emergency ammonia drainer,
But being all positioned only on high pressure ammonia storage tank, promptly letting out ammonia valve needs manually opened, and letting out ammonia amount does not has with the water yield
Proportioning.This type of lets out ammonia system there is can only release after security incident the liquefied ammonia in high pressure ammonia storage tank, and does not has
Ammonia problem is promptly let out in view of low pressure ammonia storage tank；It is known that the concentration of Ammonia in Air 25～35ppm this
During the lowest concentration of sample, will labor for breath, can't keep one's eyes open, at this moment want manually opened and promptly let out ammonia valve
The most impossible；Letting out ammonia valve even if taking safeguard procedures to open promptly, the ammonia emitted is likely to be due to dilute
The water yield released is the least, causes ammonia concn the highest, and the ammonia of high concentration causes to periphery equally and has a strong impact on.
Summary of the invention
In order to overcome defect of the prior art, the present invention is directed to current ammonia refrigeration system and promptly let out what ammonia occurred
Safety problem, has invented and a kind of has promptly let out ammonia system for refrigeration system high pressure ammonia storage tank and low pressure ammonia storage tank
System and operational approach.
The object of the present invention is achieved like this:
A kind of refrigeration system is with promptly letting out ammonia system, including refrigeration compressor, oil eliminator, condenser, height
Pressure ammonia storage tank, low pressure ammonia storage tank, vaporizer and emergency ammonia drainer, the import of described refrigeration compressor and low pressure
The gas outlet of ammonia storage tank is connected, and the outlet of described refrigeration compressor is connected with the import of oil eliminator, separating of oil
The outlet of device is connected with the import of condenser, and the outlet of condenser is connected with the import of high pressure ammonia storage tank, high pressure
The outlet of ammonia storage tank is connected with low pressure ammonia storage tank, and the liquid outlet of low pressure ammonia storage tank is connected with the inlet of vaporizer,
The venthole of vaporizer is connected with the air intake of low pressure receiver；Described low pressure ammonia storage tank connects refrigerant compression
Machine；The top of described high pressure ammonia storage tank is provided with high-pressure pressure sensor, and the top of described low pressure ammonia storage tank sets
Being equipped with low-pressure sensor, described high pressure ammonia storage tank and low pressure ammonia storage tank are all connected with emergency ammonia drainer, institute
State to connect on emergency ammonia drainer and have standing water source and cistern；Described standing water source and described emergency ammonia drainer it
Between be provided with waterway electromagnetic valve；To described emergency ammonia drainer, it is disposed with height from described high pressure ammonia storage tank
Pressure lets out ammonia electromagnetic valve and high pressure lets out ammonia flow detection device, from described low pressure ammonia storage tank to emergency ammonia drainer
It is disposed with low pressure and lets out ammonia electromagnetic valve and low pressure lets out ammonia flow detection device.
The present invention is further arranged to: set the most successively between described high pressure ammonia storage tank and emergency ammonia drainer
Be equipped with that high pressure lets out ammonia globe valve, high pressure lets out ammonia electromagnetic valve, high pressure lets out ammonia flow detection device and high pressure only lets out ammonia
Return valve.
The present invention is further arranged to: set the most successively between described low pressure ammonia storage tank and emergency ammonia drainer
Be equipped with that low pressure lets out ammonia globe valve, low pressure lets out ammonia electromagnetic valve, low pressure lets out ammonia flow detection device and low pressure only lets out ammonia
Return valve.
The present invention is further arranged to: the outlet of described high pressure ammonia storage tank and described low pressure ammonia storage tank are by throttling
Valve is connected.
The present invention is further arranged to: be provided with water route stream between described standing water source and described waterway electromagnetic valve
Control valve.
A kind of refrigeration system operational approach promptly letting out ammonia system, comprises the following steps:
1) pressure detected when high-pressure pressure sensor is higher than the highest permission work of high pressure ammonia storage tank
During pressure, high-pressure pressure sensor transmits a signal to waterway electromagnetic valve and high pressure lets out ammonia control valve, water route
Electromagnetic valve is first opened, and opens high pressure and let out ammonia control valve after the 5s of interval；High pressure lets out ammonia detection device will detection
To flow signal send water route flow control valve to, water route flow control valve according to set flow-rate ratio adjust
Whole aperture；
2) pressure detected when low-pressure sensor is higher than the highest permission work of low pressure ammonia storage tank
During pressure, low-pressure sensor transmits a signal to waterway electromagnetic valve and low pressure lets out ammonia control valve, water route
Electromagnetic valve is first opened, and opens low pressure and let out ammonia control valve after the 5s of interval；Low pressure lets out ammonia detection device will detection
To flow signal send water route flow control valve to, water route flow control valve according to set flow-rate ratio adjust
Whole aperture.
The present invention highlights and useful having the technical effect that compared to existing technology
1, it is suitable for various ammonia bunkerage；
2, when ammonia bunkerage pressure limit, can automatically open up and promptly let out ammonia valve and let out ammonia；
3, promptly to let out ammonia general for high pressure ammonia storage tank and low pressure ammonia storage tank, and does not interfere with each other；
4, the water yield can be automatically configured according to letting out ammonia flow, make the ammonia concn after releasing meet the requirements.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Label implication in figure:
1-cold compressor；2-oil eliminator；3-condenser；4-high pressure ammonia storage tank；5-low pressure ammonia storage tank；
6-vaporizer；7-emergency ammonia drainer；8-choke valve；9-low-pressure sensor；
10-high-pressure pressure sensor；11-high pressure lets out ammonia globe valve；12-high pressure lets out ammonia electromagnetic valve；
13-high pressure lets out ammonia flow detection device；14-high pressure lets out ammonia check-valves；15-low pressure lets out ammonia globe valve；
16-low pressure lets out ammonia electromagnetic valve；17-low pressure lets out ammonia flow detection device；18-low pressure lets out ammonia check-valves；
19-waterway electromagnetic valve；20-water route flow control valve.
Detailed description of the invention
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings:
Shown in Figure 1, a kind of refrigeration system is with promptly letting out ammonia system, including refrigeration compressor 1, separating of oil
Device 2, condenser 3, high pressure ammonia storage tank 4, low pressure ammonia storage tank 5, vaporizer 6 and emergency ammonia drainer 7, described
The import of refrigeration compressor 1 is connected with the gas outlet of low pressure ammonia storage tank 5, the outlet of described refrigeration compressor 1
Import with oil eliminator 2 is connected, and the outlet of oil eliminator 2 is connected with the import of condenser 3, condenser 3
Outlet be connected with the import of high pressure ammonia storage tank 4, the outlet of high pressure ammonia storage tank 4 is connected with low pressure ammonia storage tank 5,
The liquid outlet of low pressure ammonia storage tank 5 is connected with the inlet of vaporizer 6, the venthole of vaporizer 6 and low pressure storage
The air intake of liquid device 5 is connected；Described low pressure ammonia storage tank 5 connects coolant compressor 1；Described high pressure ammonia storage tank
The top of 4 is provided with high-pressure pressure sensor 10, and the top of described low pressure ammonia storage tank 5 is provided with low pressure
Sensor 9, described high pressure ammonia storage tank 4 and low pressure ammonia storage tank 4 be all connected with emergency ammonia drainer 7, described promptly
Let out to connect on ammonia device 7 and have standing water source and cistern；By there being the arranging of standing water source and cistern can basis
Let out ammonia flow and automatically configure the water yield, make the ammonia concn after releasing meet the requirements；Described standing water source is with described
Waterway electromagnetic valve 19 it is provided with between emergency ammonia drainer 7；Ammonia is promptly let out to described from described high pressure ammonia storage tank 4
It is disposed with high pressure between device 7 and lets out ammonia electromagnetic valve 12 and high pressure lets out ammonia flow detection device 13, from described low
Pressure ammonia storage tank 5 lets out ammonia electromagnetic valve 16 and low pressure lets out ammonia flow to being disposed with low pressure between emergency ammonia drainer 7
Detection device 17.
It is further arranged to: set gradually from top to bottom between described high pressure ammonia storage tank 4 and emergency ammonia drainer 7
Have high pressure to let out ammonia globe valve 11, high pressure lets out ammonia electromagnetic valve 12, high pressure lets out ammonia flow detection device 13 and high pressure
Let out ammonia check-valves 14.
It is further arranged to: set gradually from top to bottom between described low pressure ammonia storage tank 5 and emergency ammonia drainer 7
Have low pressure to let out ammonia globe valve 15, low pressure lets out ammonia electromagnetic valve 16, low pressure lets out ammonia flow detection device 17 and low pressure
Let out ammonia check-valves 18.
In the present embodiment, described high pressure lets out ammonia check-valves 14 and low pressure let out ammonia check-valves 18 be prevent high pressure,
Low pressure is altered when letting out ammonia mutually, improves safety；And the present invention is suitable for various ammonia bunkerage, when ammonia storage sets
During standby pressure limit, can automatically open up and promptly let out ammonia valve and let out ammonia, increase device security.
It is further arranged to: the outlet of described high pressure ammonia storage tank 4 and described low pressure ammonia storage tank 5 are by choke valve 8
It is connected.
It is further arranged to: between described standing water source and described waterway electromagnetic valve 19, be provided with water route flow control
Valve 20 processed.
A kind of refrigeration system operational approach promptly letting out ammonia system, comprises the following steps:
1) pressure detected when high-pressure pressure sensor 10 is higher than the highest permission work of high pressure ammonia storage tank
When making pressure, high-pressure pressure sensor 10 transmits a signal to waterway electromagnetic valve 19 and high pressure lets out ammonia control
Valve 12, waterway electromagnetic valve 19 first opens, and after the 5s of interval, high pressure is let out ammonia control valve 12 and opened；High pressure is let out
The flow signal detected is sent to water route flow control valve 20, water route flow control by ammonia detection device 13
Valve 20 processed adjusts aperture according to the flow-rate ratio set；
2) pressure detected when low-pressure sensor 9 is higher than the highest permission work of low pressure ammonia storage tank
When making pressure, low-pressure sensor 9 transmits a signal to waterway electromagnetic valve 19 and low pressure lets out ammonia control
Valve 16, waterway electromagnetic valve 19 first opens, and after the 5s of interval, low pressure is let out ammonia control valve 16 and opened；Low pressure is let out
The flow signal detected is sent to water route flow control valve 20, water route flow control by ammonia detection device 17
Valve 20 processed adjusts aperture according to the flow-rate ratio set.
In the present embodiment, described high pressure lets out ammonia globe valve 11 and low pressure is let out ammonia globe valve 15 and is in normally open,
Only close when ammonia system is safeguarded promptly letting out, be so easy to control high pressure ammonia storage tank 4 and low pressure ammonia storage tank 5
Close, it is simple to maintenance.
Above-described embodiment is only presently preferred embodiments of the present invention, limits the scope of the invention the most according to this,
Therefore: the equivalence change that all structures under this invention, shape, principle are done, the guarantor of the present invention all should be covered by
Within the scope of protecting.
Claims (6)
1. a refrigeration system is with promptly letting out ammonia system, it is characterised in that: include refrigeration compressor, separating of oil
Device, condenser, high pressure ammonia storage tank, low pressure ammonia storage tank, vaporizer and emergency ammonia drainer, described refrigerant compression
The import of machine is connected with the gas outlet of low pressure ammonia storage tank, and the outlet of described refrigeration compressor is entered with oil eliminator
Mouth is connected, and the outlet of oil eliminator is connected with the import of condenser, the outlet of condenser and high pressure ammonia storage tank
Import is connected, and the outlet of high pressure ammonia storage tank is connected with low pressure ammonia storage tank, the liquid outlet of low pressure ammonia storage tank and evaporation
The inlet of device is connected, and the venthole of vaporizer is connected with the air intake of low pressure receiver；Described low pressure storage ammonia
Device connects coolant compressor；The top of described high pressure ammonia storage tank is provided with high-pressure pressure sensor, described low
The top of pressure ammonia storage tank is provided with low-pressure sensor, and described high pressure ammonia storage tank and low pressure ammonia storage tank are all with tight
Suddenly letting out ammonia device to connect, described emergency ammonia drainer connects standing water source and cistern；Described standing water source with
It is provided with waterway electromagnetic valve between described emergency ammonia drainer；From described high pressure ammonia storage tank to described emergency ammonia drainer
Between be disposed with high pressure and let out ammonia electromagnetic valve and high pressure lets out ammonia flow detection device, from described low pressure ammonia storage tank
Between emergency ammonia drainer, it is disposed with low pressure lets out ammonia electromagnetic valve and low pressure lets out ammonia flow detection device.
A kind of refrigeration system the most according to claim 1 is with promptly letting out ammonia system, it is characterised in that: institute
State and between high pressure ammonia storage tank and emergency ammonia drainer, be disposed with that high pressure lets out ammonia globe valve, high pressure is let out from top to bottom
Ammonia electromagnetic valve, high pressure let out ammonia flow detection device and high pressure lets out ammonia check-valves.
A kind of refrigeration system the most according to claim 1 and 2 is with promptly letting out ammonia system, it is characterised in that:
It is disposed with low pressure from top to bottom between described low pressure ammonia storage tank and emergency ammonia drainer and lets out ammonia globe valve, low pressure
Let out ammonia electromagnetic valve, low pressure lets out ammonia flow detection device and low pressure lets out ammonia check-valves.
A kind of refrigeration system the most according to claim 1 and 2 is with promptly letting out ammonia system, it is characterised in that:
The outlet of described high pressure ammonia storage tank is connected by choke valve with described low pressure ammonia storage tank.
A kind of refrigeration system the most according to claim 1 is with promptly letting out ammonia system, it is characterised in that: institute
State and between standing water source and described waterway electromagnetic valve, be provided with water route flow control valve.
6. the refrigeration system operational approach promptly letting out ammonia system, it is characterised in that: comprise the following steps:
1) pressure detected when high-pressure pressure sensor is higher than the highest permission work of high pressure ammonia storage tank
During pressure, high-pressure pressure sensor transmits a signal to waterway electromagnetic valve and high pressure lets out ammonia control valve, water route
Electromagnetic valve is first opened, and opens high pressure and let out ammonia control valve after the 5s of interval；High pressure lets out ammonia detection device will detection
To flow signal send water route flow control valve to, water route flow control valve according to set flow-rate ratio adjust
Whole aperture；
2) pressure detected when low-pressure sensor is higher than the highest permission work of low pressure ammonia storage tank
During pressure, low-pressure sensor transmits a signal to waterway electromagnetic valve and low pressure lets out ammonia control valve, water route
Electromagnetic valve is first opened, and opens low pressure and let out ammonia control valve after the 5s of interval；Low pressure lets out ammonia detection device will detection
To flow signal send water route flow control valve to, water route flow control valve according to set flow-rate ratio adjust
Whole aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343336.7A CN105841412A (en) | 2016-05-20 | 2016-05-20 | Emergency ammonia draining system for refrigerating system and operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343336.7A CN105841412A (en) | 2016-05-20 | 2016-05-20 | Emergency ammonia draining system for refrigerating system and operating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105841412A true CN105841412A (en) | 2016-08-10 |
Family
ID=56593152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343336.7A Pending CN105841412A (en) | 2016-05-20 | 2016-05-20 | Emergency ammonia draining system for refrigerating system and operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273541A (en) * | 2021-07-21 | 2021-08-20 | 烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站) | Refrigeration equipment for sea cucumber seedling culture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364404Y (en) * | 1999-05-01 | 2000-02-16 | 开封空分集团有限公司 | Ammonia water-cooling device |
| CN103557674A (en) * | 2013-11-12 | 2014-02-05 | 温岭市钱江化工机械有限公司 | Safety control system for hot refrigerant defrosting of refrigerator |
| CN205784077U (en) * | 2016-05-20 | 2016-12-07 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system is with promptly letting out ammonia system |
-
2016
- 2016-05-20 CN CN201610343336.7A patent/CN105841412A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364404Y (en) * | 1999-05-01 | 2000-02-16 | 开封空分集团有限公司 | Ammonia water-cooling device |
| CN103557674A (en) * | 2013-11-12 | 2014-02-05 | 温岭市钱江化工机械有限公司 | Safety control system for hot refrigerant defrosting of refrigerator |
| CN205784077U (en) * | 2016-05-20 | 2016-12-07 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system is with promptly letting out ammonia system |
Non-Patent Citations (2)
| Title |
|---|
| 《管道工操作技能快学快用》编写组: "《管道工操作技能快学快用》", 31 May 2015 * |
| 吴伯才: "《船舶辅机》", 30 April 2014 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273541A (en) * | 2021-07-21 | 2021-08-20 | 烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站) | Refrigeration equipment for sea cucumber seedling culture |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |