CN205373191U - Adopt device with LNG cold energy ordinary ice of preparation and ozone ice of two -stage heat transfer - Google Patents
Adopt device with LNG cold energy ordinary ice of preparation and ozone ice of two -stage heat transfer Download PDFInfo
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- CN205373191U CN205373191U CN201520781814.3U CN201520781814U CN205373191U CN 205373191 U CN205373191 U CN 205373191U CN 201520781814 U CN201520781814 U CN 201520781814U CN 205373191 U CN205373191 U CN 205373191U
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Abstract
The utility model relates to an adopt device with LNG cold energy ordinary ice of preparation and ozone ice of two -stage heat transfer. Still there is not a low cost at present, the efficient ozone ice preparation facilities of system ice. The utility model discloses a device includes ozone ice ice machine and ordinary ice ice machine, and its characteristics are: still include LNG storage tank, LNG gasification heat exchanger and NG intensification heat exchanger, the cold section entry linkage of LNG storage tank and LNG gasification heat exchanger, the export of LNG gasification heat exchanger is connected with NG intensification heat exchanger, and the exit linkage of NG intensification heat exchanger is netted to natural gas pipe, LNG gasification heat exchanger and ozone ice ice machine pass through one -level circulation circuit to be connected, and NG intensification heat exchanger and ordinary ice ice machine pass through second grade circulation circuit and connect. The utility model discloses a refrigerant among the one -level circulation circuit absorbs the cold volume liquefaction of LNG at LNG gasification heat exchanger, the cold volume preparation ozone ice of release, and low cost, system ice is efficient.
Description
Technical field
This utility model relates to a kind of Ozone Ice preparation facilities, particularly relates to a kind of device preparing common ice and Ozone Ice with LNG cold energy adopting two-stage heat exchange.
Background technology
LNG(LiquefiedNaturalGas, liquefied natural gas) gasification temperature under normal pressure is-162 DEG C, in gasification, absorbs the gasification latent heat of 502.1kJ/kg, is then changed into 0 DEG C of heat that also can absorb 334.7kJ/kg by-162 DEG C of gaseous states at ambient pressure.Because LNG can discharge substantial amounts of cold energy, there is again the extremely low temperature of-162 DEG C, so LNG is the low temperature cold source that a kind of quality is high.
Ozone (O3) it is a kind of strong oxidizer, it is possible to sterilization, sterilization and deodorization, and do not produce the Harmful Residue except producing some oxygen, store transport field in food processing huge particularly in the guarantee the quality prospect in field of seafood.But, the ozone life-span under gas or liquid condition is very short, it is impossible to meet the demand of continual and steady high ozone concentration.Current general electricity consumption refrigeration cold water ice making, general coolant is freon, liquefied ammonia or other coolant, and cryogenic temperature is generally-30 DEG C, chilling rate is slow, ozone in water can dissipate in ice-making process, decompose, and the loss rate of ozone is big, and is difficult to produce the Ozone Ice of high concentration.
Employing additive method is also had now to prepare Ozone Ice, if publication date is on 09 21st, 2011, publication number is in the Chinese patent of CN102197270A, disclosing a kind of Ozone Ice manufacture method, this Ozone Ice manufacture method contains oxygen as the ice of bubble, to made ice irradiation ultraviolet radiation, by the oxygen ozone in ice, thus manufacturing Ozone Ice, adopting the method to manufacture the inefficient of Ozone Ice, energy consumption is bigger.
In sum, there is presently no a kind of reasonable in design, flow process is simple, with low cost, the Ozone Ice preparation facilities that ice making efficiency is high.
Utility model content
The purpose of this utility model is in that to overcome above shortcomings in prior art, and provides a kind of reasonable in design, and flow process is simple, with low cost, the device preparing common ice and Ozone Ice with LNG cold energy of the employing two-stage heat exchange that ice making efficiency is high.
The technical scheme in the invention for solving the above technical problem is: the preparing the device of common ice and Ozone Ice with LNG cold energy and include Ozone Ice ice machine and common ice ice machine of this employing two-stage heat exchange, its construction features is in that: also include LNG storage tank, LNG gasification heat exchanger, NG temperature rise heat exchanger, primary cycle loop, the cold storage tank of one-level refrigerant medium, primary cycle loop circulator pump, secondary cycle loop, two grades of cold storage tanks of refrigerant medium, secondary cycle loop circulator pump, source of oxygen, ozonator, water cleaning systems, gas-liquid mixing pump, gas-liquid separator and Ozone Water storage tank, described LNG storage tank is connected with cold section of entrance of LNG gasification heat exchanger, the outlet of described LNG gasification heat exchanger is connected with NG temperature rise heat exchanger, the outlet of described NG temperature rise heat exchanger is connected to gas distributing system；Described LNG gasification heat exchanger and Ozone Ice ice machine are connected by primary cycle loop, the described cold storage tank of one-level refrigerant medium and primary cycle loop circulator pump are installed on primary cycle loop, described NG temperature rise heat exchanger and common ice ice machine are connected by secondary cycle loop, and described two grades of cold storage tanks of refrigerant medium and secondary cycle loop circulator pump are installed on secondary cycle loop；Described source of oxygen, ozonator and gas-liquid mixing pump are sequentially connected with, described water cleaning systems and gas-liquid mixing pump connect, described gas-liquid mixing pump and gas-liquid separator connect, described gas-liquid separator and Ozone Water storage tank connect, described Ozone Water storage tank and Ozone Ice ice machine connect, and the entrance of described common ice ice machine is connected with running water pipe.
As preferably, source of oxygen described in the utility model includes air purifier and oxygenerator, and described air purifier, oxygenerator and ozonator are sequentially connected with；Or, described source of oxygen is oxygen cylinder or liquid oxygen tank；Oxygen in described source of oxygen: purity>=99.6%, dew point <-50 DEG C,<0.01um,<percentage composition is volumn concentration to oil content to dust granules for 0.01ppm, pressure 0.2-0.5Mpa.
As preferably, oxygenerator described in the utility model is PAS oxygenerator.
As preferably, ozonator described in the utility model is high voltage discharge type ozonator.
A kind of use described employing two-stage heat exchange prepare, with LNG cold energy, the method that the device of common ice and Ozone Ice prepares common ice and Ozone Ice, it is characterized in that: comprise the following steps:
The oxygen provided by source of oxygen produces ozone through ozonator, and ozone mixes in gas-liquid mixing pump with the water purification after water cleaning systems purifies, and the Ozone Water after gas-liquid separator separates enters Ozone Ice ice machine through Ozone Water storage tank and produces Ozone Ice；
One-level refrigerant medium in primary cycle loop absorbs LNG cold post liquefaction at LNG gasification heat exchanger, enter the refrigerant inlet of Ozone Ice ice machine through the cold storage tank of one-level refrigerant medium and/or primary cycle loop circulator pump, after released cold quantity, gasification is the one-level refrigerant medium gas refrigerant inlet through the refrigerant exit connection LNG gasification heat exchanger of Ozone Ice ice machine；Ozone Ice ice machine utilizes the cold that the one-level refrigerant medium in primary cycle loop discharges to prepare Ozone Ice；
Two grades of refrigerant mediums in secondary cycle loop absorb NG cold post liquefaction at NG temperature rise heat exchanger, enter the refrigerant inlet of common ice ice machine through two grades of cold storage tanks of refrigerant medium and/or secondary cycle loop circulator pump, after released cold quantity, gasification is two grades of refrigerant medium gases refrigerant inlet through the refrigerant exit connection NG temperature rise heat exchanger of common ice ice machine；Common ice ice machine utilizes the cold of two grades of refrigerant medium releases in secondary cycle loop to prepare common ice.
As preferably, this utility model comprises the following steps:
1) 0.5MPa, the LNG of-162 DEG C become 0.5MPa after exchanging with the one-level refrigerant medium air heat in primary cycle loop, the NG of-162 DEG C, then with two grades of refrigerant medium air heats exchange of 10～15 DEG C in secondary cycle loop after, become 0.4～0.5MPa, after the NG of 1～5 DEG C, enter NG pipe network；
2) in primary cycle loop, one-level refrigerant medium temperature after heat exchange reduces, and is in a liquid state, and with Ozone Water heat exchange, Ozone Water is condensed into Ozone Ice, gasifies with the one-level refrigerant medium after Ozone Water heat exchange, returns LNG gasification heat exchanger and recycles；
3) in secondary cycle loop, two grades of refrigerant medium temperature after heat exchange reduce, and are in a liquid state, and with tap water heat exchange, tap water condenses into common ice, two grades of refrigerant mediums gasifications with after tap water heat exchange, returns NG temperature rise heat exchanger and recycles.
As preferably, one-level refrigerant medium described in the utility model is inorganic compound, freon, alkanes cycloalkane and halides thereof, and the one or more kinds of mixture in olefine and halides thereof.
As preferably, two grades of refrigerant mediums described in the utility model are inorganic compound, freon, alkanes cycloalkane and halides thereof, and the one or more kinds of mixture in olefine and halides thereof.
This utility model compared with prior art, has the following advantages and effect: 1) utilize LNG cold energy to produce Ozone Ice, it is not necessary to additional refrigeration source, energy efficient；2) the residue cold after Ozone Ice processed produces common ice, it is achieved the classified utilization of cold, increases operation rate；3) technological process is simple, easy to operate, controls elastic big.
Flow process of the present utility model is simple, with low cost, prepare Ozone Ice meanwhile, it is capable to utilize classification heat exchange, prepare common ice simultaneously, increase the utilization rate of cold energy.LNG cold energy can provide the low temperature cold source of a high-quality in Ozone Ice preparation process, and at-162 DEG C, chilling rate greatly speeds up so that ozone in water also do not have enough time decompose, dissipation just by quick-freezing in ice, produce the Ozone Ice of high concentration.LNG cold energy is utilized to overcome the problem that chilling rate is slow, ozone loss is big existed in existing Ozone Ice technology of preparing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device preparing common ice and Ozone Ice with LNG cold energy adopting two-stage heat exchange in this utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following example are that this utility model is not limited to following example to explanation of the present utility model.
Embodiment.
Referring to Fig. 1, the present embodiment adopts preparing the device of common ice and Ozone Ice with LNG cold energy and including LNG storage tank 1 of two-stage heat exchange, LNG gasification heat exchanger 2, NG temperature rise heat exchanger 3, primary cycle loop 4, the cold storage tank 5 of one-level refrigerant medium, primary cycle loop circulator pump 6, secondary cycle loop 7, two grades of cold storage tanks 8 of refrigerant medium, secondary cycle loop circulator pump 9, Ozone Ice ice machine 10, common ice ice machine 11, source of oxygen, ozonator 14, water cleaning systems 15, gas-liquid mixing pump 16, gas-liquid separator 17 and Ozone Water storage tank 18, wherein, oxygenerator 13 is generally PAS oxygenerator, ozonator 14 is generally high voltage discharge type ozonator.
LNG storage tank 1 in the present embodiment is connected with cold section of entrance of LNG gasification heat exchanger 2, and the outlet of LNG gasification heat exchanger 2 is connected with NG temperature rise heat exchanger 3, and the outlet of NG temperature rise heat exchanger 3 is connected to gas distributing system；LNG gasification heat exchanger 2 and Ozone Ice ice machine 10 are connected by primary cycle loop 4, the cold storage tank 5 of one-level refrigerant medium and primary cycle loop circulator pump 6 are installed on primary cycle loop 4, NG temperature rise heat exchanger 3 and common ice ice machine 11 are connected by secondary cycle loop 7, and two grades of cold storage tanks 8 of refrigerant medium and secondary cycle loop circulator pump 9 are installed on secondary cycle loop 7.
Source of oxygen in the present embodiment, ozonator 14 and gas-liquid mixing pump 16 are sequentially connected with, water cleaning systems 15 and gas-liquid mixing pump 16 connect, gas-liquid mixing pump 16 and gas-liquid separator 17 connect, gas-liquid separator 17 and Ozone Water storage tank 18 connect, Ozone Water storage tank 18 and Ozone Ice ice machine 10 connect, and the entrance of common ice ice machine 11 is connected with running water pipe.
Source of oxygen in the present embodiment can include air purifier 12 and oxygenerator 13, and air purifier 12, oxygenerator 13 and ozonator 14 are sequentially connected with.Source of oxygen in the present embodiment can also be oxygen cylinder, belongs to bottle oxugen.Source of oxygen in the present embodiment can also be liquid oxygen tank, belongs to canned liquid oxygen.Source of oxygen in the present embodiment can also use other source that meets the requirements.Oxygen in source of oxygen: purity>=99.6%, dew point <-50 DEG C,<0.01um,<percentage composition is volumn concentration to oil content to dust granules for 0.01ppm, pressure 0.2-0.5Mpa.
The present embodiment uses and adopts preparing the device of common ice and Ozone Ice with LNG cold energy and preparing the method for common ice and Ozone Ice and comprise the following steps of two-stage heat exchange:
The oxygen provided by source of oxygen produces ozone through ozonator 14, ozone mixes in gas-liquid mixing pump 16 with the water purification after water cleaning systems 15 purifies, and the Ozone Water after gas-liquid separator 17 separates enters Ozone Ice ice machine 10 through Ozone Water storage tank 18 and produces Ozone Ice；
One-level refrigerant medium in primary cycle loop 4 absorbs LNG cold post liquefaction at LNG gasification heat exchanger 2, enter the refrigerant inlet of Ozone Ice ice machine 10 through the cold storage tank 5 of one-level refrigerant medium and/or primary cycle loop circulator pump 6, after released cold quantity, gasification is the one-level refrigerant medium gas refrigerant inlet through the refrigerant exit connection LNG gasification heat exchanger 2 of Ozone Ice ice machine 10；Ozone Ice ice machine 10 utilizes the cold that the one-level refrigerant medium in primary cycle loop 4 discharges to prepare Ozone Ice；
Two grades of refrigerant mediums in secondary cycle loop 7 absorb NG cold post liquefaction at NG temperature rise heat exchanger 3, enter the refrigerant inlet of common ice ice machine 11 through two grades of cold storage tanks 8 of refrigerant medium and/or secondary cycle loop circulator pump 9, after released cold quantity, gasification is two grades of refrigerant medium gases refrigerant inlet through the refrigerant exit connection NG temperature rise heat exchanger 3 of common ice ice machine 11；Common ice ice machine 11 utilizes the cold of two grades of refrigerant medium releases in secondary cycle loop 7 to prepare common ice.
Under normal circumstances, the method that LNG cold energy prepares common ice and Ozone Ice that utilizes of two-stage heat exchange is adopted to comprise the following steps:
1) 0.5MPa, after the LNG of-162 DEG C exchanges with the one-level refrigerant medium air heat in primary cycle loop 4, become 0.5MPa, the NG of-162 DEG C, then with two grades of refrigerant medium air heats exchange of 10～15 DEG C in secondary cycle loop 7 after, become 0.4～0.5MPa, after the NG of 1～5 DEG C, enter NG pipe network.
2) in primary cycle loop 4, one-level refrigerant medium temperature after heat exchange reduces, and is in a liquid state, and with Ozone Water heat exchange, Ozone Water is condensed into Ozone Ice, gasifies with the one-level refrigerant medium after Ozone Water heat exchange, returns LNG gasification heat exchanger 2 and recycles.
3) in secondary cycle loop 7, two grades of refrigerant medium temperature after heat exchange reduce, and are in a liquid state, and with tap water heat exchange, tap water condenses into common ice, two grades of refrigerant mediums gasifications with after tap water heat exchange, returns NG temperature rise heat exchanger 3 and recycles.
One-level refrigerant medium in this utility model can be inorganic compound, freon, alkanes cycloalkane and halides thereof, and the one or more kinds of mixture in olefine and halides thereof.Inorganic compound can be carbon dioxide, R717(ammonia)；Alkanes cycloalkane can be R290(propane)；The halides of alkanes cycloalkane can be R22(monochlorodifluoromethane), R32(difluoromethane), R13 (Freon 13), R23 (fluoroform), R-134a(1,1,1,2-tetrafluoroethane), R152a(1,1-Difluoroethane)；Olefine can be R1270(propylene)；Zeotrope thing can be mixed in proportion for R404a(formed by pentafluoroethane, HFC-143a, tetrafluoroethane), R407C(by difluoromethane, pentafluoroethane, 1,1,1,2-tetrafluoroethane is mixed in proportion and forms), R410a(is mixed in proportion to form by difluoromethane and pentafluoroethane and forms), R417a(is by 1,1,1,2-tetrafluoroethane, pentafluoroethane, normal butane are mixed in proportion and form)；Azeotropic mixture thing can be R502(be mixed in proportion by dichlorodifluoromethane, monochlorodifluoromethane form), R508b(is mixed in proportion by fluoroform, perfluoroethane and forms).
Two grades of refrigerant mediums in this utility model can be inorganic compound, freon, alkanes cycloalkane and halides thereof, and the one or more kinds of mixture in olefine and halides thereof.Inorganic compound can be carbon dioxide, R717(ammonia)；Alkanes cycloalkane can be R290(propane)；The halides of alkanes cycloalkane can be R22(monochlorodifluoromethane), R32(difluoromethane), R13 (Freon 13), R23 (fluoroform), R-134a(1,1,1,2-tetrafluoroethane), R152a(1,1-Difluoroethane)；Olefine can be R1270(propylene)；Zeotrope thing can be mixed in proportion for R404a(formed by pentafluoroethane, HFC-143a, tetrafluoroethane), R407C(by difluoromethane, pentafluoroethane, 1,1,1,2-tetrafluoroethane is mixed in proportion and forms), R410a(is mixed in proportion to form by difluoromethane and pentafluoroethane and forms), R417a(is by 1,1,1,2-tetrafluoroethane, pentafluoroethane, normal butane are mixed in proportion and form)；Azeotropic mixture thing can be R502(be mixed in proportion by dichlorodifluoromethane, monochlorodifluoromethane form), R508b(is mixed in proportion by fluoroform, perfluoroethane and forms).
This utility model can prepare Ozone Ice and common ice simultaneously, and flow process is simple, with low cost, it is possible to realizes the cascade utilization of energy, increases the utilization rate of cold energy.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different, and the above content described in this specification is only to this utility model structure example explanation.All equivalences done according to the structure described in this utility model inventional idea, feature and principle change or simple change, are all included in the protection domain of this utility model patent.Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount the scope that present claims book is defined, protection domain of the present utility model all should be belonged to.
Claims (4)
- null1. the device preparing common ice and Ozone Ice with LNG cold energy adopting two-stage heat exchange，Including Ozone Ice ice machine (10) and common ice ice machine (11)，It is characterized in that: also include LNG storage tank (1)、LNG gasification heat exchanger (2)、NG temperature rise heat exchanger (3)、Primary cycle loop (4)、The cold storage tank of one-level refrigerant medium (5)、Primary cycle loop circulator pump (6)、Secondary cycle loop (7)、The two grades of cold storage tank of refrigerant mediums (8)、Secondary cycle loop circulator pump (9)、Source of oxygen、Ozonator (14)、Water cleaning systems (15)、Gas-liquid mixing pump (16)、Gas-liquid separator (17) and Ozone Water storage tank (18)，Described LNG storage tank (1) is connected with cold section of entrance of LNG gasification heat exchanger (2)，The outlet of described LNG gasification heat exchanger (2) is connected with NG temperature rise heat exchanger (3)，The outlet of described NG temperature rise heat exchanger (3) is connected to gas distributing system；Described LNG gasification heat exchanger (2) and Ozone Ice ice machine (10) are connected by primary cycle loop (4), the cold storage tank of described one-level refrigerant medium (5) and primary cycle loop circulator pump (6) are installed on primary cycle loop (4), described NG temperature rise heat exchanger (3) and common ice ice machine (11) are connected by secondary cycle loop (7), and the described two grades of cold storage tank of refrigerant mediums (8) and secondary cycle loop circulator pump (9) are installed on secondary cycle loop (7)；Described source of oxygen, ozonator (14) and gas-liquid mixing pump (16) are sequentially connected with, described water cleaning systems (15) and gas-liquid mixing pump (16) connect, described gas-liquid mixing pump (16) and gas-liquid separator (17) connect, described gas-liquid separator (17) and Ozone Water storage tank (18) connect, described Ozone Water storage tank (18) and Ozone Ice ice machine (10) connect, and the entrance of described common ice ice machine (11) is connected with running water pipe.
- 2. the device preparing common ice and Ozone Ice with LNG cold energy of employing two-stage heat exchange according to claim 1, it is characterized in that: described source of oxygen includes air purifier (12) and oxygenerator (13), and described air purifier (12), oxygenerator (13) and ozonator (14) are sequentially connected with；Or, described source of oxygen is oxygen cylinder or liquid oxygen tank.
- 3. the device preparing common ice and Ozone Ice with LNG cold energy of employing two-stage heat exchange according to claim 2, it is characterised in that: described oxygenerator (13) is PAS oxygenerator.
- 4. the device preparing common ice and Ozone Ice with LNG cold energy of employing two-stage heat exchange according to claim 1, it is characterised in that: described ozonator (14) is high voltage discharge type ozonator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781814.3U CN205373191U (en) | 2015-10-10 | 2015-10-10 | Adopt device with LNG cold energy ordinary ice of preparation and ozone ice of two -stage heat transfer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520781814.3U CN205373191U (en) | 2015-10-10 | 2015-10-10 | Adopt device with LNG cold energy ordinary ice of preparation and ozone ice of two -stage heat transfer |
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| CN205373191U true CN205373191U (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222446A (en) * | 2015-10-10 | 2016-01-06 | 华电电力科学研究院 | The LNG cold energy that utilizes of two-stage heat exchange is adopted to prepare the apparatus and method of common ice and Ozone Ice |
-
2015
- 2015-10-10 CN CN201520781814.3U patent/CN205373191U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222446A (en) * | 2015-10-10 | 2016-01-06 | 华电电力科学研究院 | The LNG cold energy that utilizes of two-stage heat exchange is adopted to prepare the apparatus and method of common ice and Ozone Ice |
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Granted publication date: 20160706 Effective date of abandoning: 20171219 |