CN216837144U - System for utilize ozone generator waste heat vaporization liquid oxygen - Google Patents
System for utilize ozone generator waste heat vaporization liquid oxygen Download PDFInfo
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- CN216837144U CN216837144U CN202220076312.0U CN202220076312U CN216837144U CN 216837144 U CN216837144 U CN 216837144U CN 202220076312 U CN202220076312 U CN 202220076312U CN 216837144 U CN216837144 U CN 216837144U
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Abstract
The utility model provides a system for vaporizing liquid oxygen by using waste heat of an ozone generator, wherein the liquid oxygen in a liquid oxygen storage tank enters a coil pipe in the ozone generator tank through a liquid oxygen inlet through a conveying pipeline, the coil pipe absorbs the heat of cooling water in a cooling water chamber to vaporize the liquid oxygen to generate gaseous oxygen, and the oxygen flows into an oxygen pressure reducing valve through an oxygen outlet to reduce the pressure; the oxygen after decompression enters a first space in the ozone generator tank body and enters an ozone pipe, the oxygen generates ozone gas through high-frequency high-voltage corona discharge, the ozone gas enters a second space from the other end of the ozone pipe, and the ozone in the second space is output through an ozone outlet. The utility model discloses utilize the waste heat that ozone generator during operation produced to vaporize liquid oxygen, make liquid oxygen vaporize into gaseous state oxygen and supply ozone generator to use, can make liquid oxygen obtain better vaporization like this, can make ozone generator obtain the cooling again, saved the required vaporizer of liquid oxygen vaporization, save the required cooling water energy consumption of some ozone generator cooling again.
Description
Technical Field
The utility model relates to an ozone generator technical field, concretely relates to utilize system of ozone generator waste heat vaporization liquid oxygen.
Background
The existing ozone preparation process flow is that liquid oxygen in a liquid oxygen storage tank is vaporized by a vaporizer, then is input into a tank body of an ozone generator under the pressure regulation of a pressure reducing valve, and generates ozone after passing through an ozone pipe. When the ozone generator works, gaseous oxygen is used as a raw material, and the oxygen is ionized by corona discharge to generate ozone. A large amount of heat can be generated in the ionization process, so that the generator needs to be cooled, the heat is taken away in time, otherwise, the ozone yield is reduced due to the temperature rise, and equipment is burnt out due to overhigh temperature. In the process of preparing ozone by the ozone generator, circulating cooling water needs to be introduced into the tank body to cool the tank body, and heat generated by the ozone generator is not well utilized, so that heat waste is caused.
The raw material required by the ozone generator for preparing ozone is oxygen. At present, two methods of PSA pressure swing adsorption oxygen production and liquid oxygen production by fractionating liquid air are industrially obtained. Because liquid oxygen purity is higher than PSA system oxygen (liquid oxygen purity 99.5%, PSA system oxygen purity 90%) and use the equipment fault rate low more stable, so mostly adopt the liquid oxygen mode. The gaseous oxygen required by the ozone generator is formed by vaporizing liquid oxygen, and the vaporization of the liquid oxygen into the gaseous oxygen needs to absorb heat.
In the existing ozone preparation process, oxygen is changed into gas from liquid after a vaporizer absorbs heat. The heating vaporizer consumes energy to heat and vaporize the liquid oxygen. The air-temperature type vaporizer heats low-temperature liquid oxygen by utilizing natural convection of air to gasify the low-temperature liquid oxygen, and although the heat exchanger is energy-saving, the heat exchanger is particularly sensitive to the ambient temperature, and the problem of incomplete gasification of the liquid oxygen can be caused when the ambient temperature is low. Meanwhile, the use of the liquid oxygen vaporizer increases the cost and occupies a part of the space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize ozone generator waste heat vaporization liquid oxygen's method and system utilizes self waste heat vaporization liquid oxygen, need not to use the vaporizer, has improved cooling efficiency and heat utilization rate, has reduced the energy consumption.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model discloses the first aspect provides an utilize system of ozone generator waste heat vaporization liquid oxygen.
A system for vaporizing liquid oxygen using waste heat from an ozone generator, comprising:
the liquid oxygen storage tank, the ozone generator tank body and the pressure reducing valve;
the ozone pipe of the ozone generator tank body is wound with a coil pipe, the liquid oxygen storage tank is communicated with an input port of the coil pipe through a conveying pipeline, and an output port of the coil pipe is communicated with one end of a pressure reducing valve through the conveying pipeline;
the other end of the pressure reducing valve is communicated with an ozone pipe input port in the ozone generator tank body, and an ozone pipe output port is communicated with an output port of the ozone generator tank body.
Further, the coil pipe surrounds the ozone pipe sets up, and the one end of coil pipe stretches out jar body intercommunication liquid oxygen source, and the other end of coil pipe passes through the one end intercommunication of relief pressure valve and ozone pipe, and the other end and the ozone outlet intercommunication of ozone pipe.
Further, the ozone generator with the yield of 0.5kg/h-1kg/h adopts DN15 coil pipe, the ozone generator with the yield of 1kg/h-10kg/h adopts DN32 coil pipe, the ozone generator with the yield of 10kg/h-50kg/h adopts DN50 coil pipe, and the ozone generator with the yield of 50kg/h-100kg/h adopts DN65 coil pipe.
Further, the pressure of the oxygen after being reduced by the pressure reducing valve is less than 0.1 MPa.
The utility model discloses the second aspect provides an ozone generator of usable self waste heat vaporization liquid oxygen, include:
the ozone generator comprises an ozone generator tank body, an ozone pipe arranged in the ozone generator and a coil pipe arranged around the ozone pipe;
one end of the coil pipe extends out of the ozone generator tank body and is used for being communicated with the liquid oxygen storage tank, the other end of the coil pipe extends out of the ozone generator tank body and is used for being communicated with one end of an ozone pipe in the ozone generator tank body through a pressure reducing valve, and the other end of the ozone pipe is communicated with an outlet of the ozone generator tank body.
Furthermore, the bottom of the ozone generator tank body is provided with a support column.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses utilize the waste heat that ozone generator during operation produced to vaporize liquid oxygen, make liquid oxygen vaporize into gaseous state oxygen and supply ozone generator to use, can make liquid oxygen obtain better vaporization like this, can make ozone generator obtain the cooling again, saved the required vaporizer of liquid oxygen vaporization, save the required cooling water energy consumption of some ozone generator cooling again.
2. The utility model discloses thoroughly solved air temperature formula vaporizer because of the low incomplete problem of meeting liquid oxygen gasification of ambient temperature, added a coil and saved liquid oxygen vaporizer, a coil investment is one tenth of vaporizer, has saved vaporizer occupation space simultaneously.
3. The utility model discloses saved the energy, ozone generator needs cooling, utilizes this part of heat that needs to cool down to liquid oxygen vaporization, practices thrift the required energy of cooling 7.54%.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a process flow diagram of a system for vaporizing liquid oxygen by using waste heat of an ozone generator according to embodiment 1 of the present invention.
Fig. 2 is a structural diagram of a system for vaporizing liquid oxygen by using waste heat of an ozone generator according to embodiment 1 of the present invention.
Wherein: 1-ozone generator tank body; 2-cooling water chamber; 3-an ozone outlet; 4-an ozone tube; 5-coiling the pipe; 6-a first separator; 7-a second separator; 8-a cooling water outlet; 9-cooling water inlet; 10-a first space; 11-a second space; 12-a pressure relief valve; 13-a support column; 14-liquid oxygen storage tank; 15-liquid oxygen inlet; 16-an oxygen outlet; 17-liquid oxygen.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by way of the drawings are exemplary only for the purpose of explaining the present invention and should not be construed as limiting the present invention.
To facilitate understanding of the present invention, the present invention will be further explained with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute limitations of the embodiments of the present invention.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of embodiments and that elements shown in the drawings are not necessarily required to practice the invention.
Example 1
As shown in fig. 1 and fig. 2, the embodiment 1 of the present invention provides a system for vaporizing liquid oxygen by using the residual heat of an ozone generator, wherein the liquid oxygen in the liquid oxygen storage tank 14 enters into the ozone generator tank 1, and after the liquid oxygen is heated in the ozone generator tank 1, the liquid oxygen is vaporized into gaseous oxygen flowing out of the ozone generator tank 1, and the gaseous oxygen flows into the ozone pipe in the ozone generator tank 1 through the pressure reducing valve 12, so as to generate ozone and discharge the ozone generator tank 1.
As shown in fig. 2, a cooling water chamber 2 is arranged in the ozone generator tank 1, an ozone outlet 3 is arranged on the ozone generator tank 1, and cooling water circulates in the cooling water chamber 2 to absorb heat generated in the ozone preparation process and cool the tank.
The cooling water chamber is characterized by further comprising a plurality of ozone tubes 4, wherein oxygen is introduced into one end of each ozone tube 4, ozone flows out of the other end of each ozone tube 4, and the ozone tubes 4 penetrate through the cooling water chamber 2. The cooling water in the cooling water chamber 2 can absorb the heat generated by the ozone pipe 4 for preparing ozone, so as to cool the ozone pipe 4.
In this embodiment, the ozone tube is made of an existing ozone tube structure, which is not the innovative point of the present invention, for example, the ozone tube structure in chinese patent CN1565960A or the ozone tube structure in chinese patent CN1315720C can be selected, and those skilled in the art can select the existing ozone tube according to specific working conditions, and the details are not repeated here.
Still include coil pipe 5, coil pipe 5 centers on ozone pipe 4 sets up, the one end of coil pipe 5 stretches out ozone generator jar body 1 intercommunication liquid oxygen source.
In this embodiment, liquid oxygen source is liquid oxygen storage tank 14, and liquid oxygen among the liquid oxygen storage tank 14 gets into coil pipe 5, because coil pipe 5 sets up around ozone pipe 4, and the coil pipe 5 is given to the heat accessible cooling water 2 of ozone pipe 4 water transfer in, heats coil pipe 5 to the vaporization gets into the liquid oxygen of coil pipe 5. The cooling water in the cooling water chamber 2, which absorbs the heat of the ozone tube 4, can also transfer the heat to the coil 5 to heat the coil 5.
The coil pipe 5 is arranged in the ozone generator tank body 1, so that liquid oxygen can be vaporized by utilizing heat generated by the ozone generator, the vaporization rate of the liquid oxygen is improved, the energy utilization rate is improved, and the energy consumption is reduced.
In this embodiment, the other end of the coil 5 is connected to one end of the ozone tube 4, and the other end of the ozone tube 4 is connected to the ozone outlet 3. The oxygen vaporized in the coil pipe 5 enters the ozone pipe 4, and ozone is produced by the ozone pipe 4 and is discharged from the ozone outlet 3. The liquid oxygen is vaporized into oxygen by the heat generated by the ozone tube 4 and then utilized by the ozone tube 4 without an additional vaporizer.
The ozone generator tank body 1 is internally provided with a first partition plate 6 and a second partition plate 7, and the first partition plate 6, the second partition plate 7 and the ozone generator tank body 1 jointly enclose the cooling water chamber 2. The first partition plate 6 and the second partition plate 7 are both in a shape matched with the cross section of the inner cavity of the ozone generator tank body 1, and the first partition plate 6 and the second partition plate 7 are both connected with the surface of the inner wall of the ozone generator tank body 1, so that a sealed space is formed. For example, the first partition plate 6 and the second partition plate 7 may be made of stainless steel plates and welded to the inner surface of the ozone generator tank 1.
And a cooling water outlet 8 is formed in one end of the cooling water chamber 2, and a cooling water inlet 9 is formed in the other end of the cooling water chamber 2. In this embodiment, the cooling water outlet 8 is located at the right end of the ozone generator tank 1, the cooling water inlet 9 is located at the left end of the ozone generator tank 1 and at the bottom of the ozone generator tank 1 at the top of the ozone generator tank 1. Cooling water enters the cooling water chamber 2 from the cooling water inlet 9, absorbs heat generated by the ozone tube 4, and flows out from the cooling water outlet 8 to cool the ozone tube 4 and the ozone generator tank 1.
In this embodiment, the coil pipe 5 is provided with one end communicated with the liquid oxygen source, and the cooling water chamber 2 is provided with one end of the cooling water outlet 8 extending out of the ozone generator tank 1. The temperature of the cooling water close to the cooling water outlet 8 is higher than that of other parts, the coil pipe 5 is communicated with the liquid oxygen storage tank 14 at the end, and the heated effect of the liquid oxygen 17 flowing out of the liquid oxygen storage tank 14 close to the cooling water outlet end is better, so that the liquid oxygen can be fully vaporized.
In this embodiment, the other end of the coil 5 extends out of the ozone generator tank 1 from the end of the cooling water chamber 2 where the cooling water inlet 9 is provided, and then is communicated with the ozone tube 4. The other end of the coil pipe 5 is communicated with the ozone pipe 4 after extending out of the top of the ozone generator tank body 1. The gasified oxygen enters the ozone tube 4 and is utilized by the ozone tube 4 to prepare ozone.
One side of the cooling water chamber 2 is a first space 10 enclosed by the first partition plate 6 and the ozone generator tank body 1; the other side of the cooling water chamber 2 is a second space 11 enclosed by the second partition plate 7 and the ozone generator tank 1. In this embodiment, the left side of the ozone generator tank 1 is a first space 10, and the right side of the ozone generator tank 1 is a second space 11. One end of the ozone pipe 4 is communicated with the first space 10, the other end of the ozone pipe 4 is communicated with the second space 11, and the ozone outlet 3 is communicated with the second space 11. The other end of the coil pipe 5 extends out of the ozone generator tank body 1 and then is communicated with a reducing valve 12, and the reducing valve 12 is communicated with the first space 10. Gaseous oxygen generated by the coil pipe 5 is decompressed by the decompression valve 12 and then flows into the first space 10 through the pipeline, the first space 10 is filled with the gaseous oxygen, and the gaseous oxygen in the first space 10 can flow into the ozone pipe 4 for the ozone pipe 4 to utilize. Ozone generated by the ozone pipe 4 can flow into the second space 11, the second space 11 is filled with ozone, and the ozone in the second space 11 is discharged through the ozone outlet 3.
In this embodiment, in order to enable the ozone tube 4 to penetrate through the cooling water chamber 2, a plurality of opposite through holes are uniformly formed in the first partition plate 6 and the second partition plate 7, two ends of the ozone tube 4 respectively penetrate through the through holes in the first partition plate 6 and the through holes in the second partition plate 7, and a sealing ring is arranged between the ozone tube 4 and the through holes.
In this embodiment, the bottom of the ozone generator tank 1 is provided with the support column 13, and the support column 13 is used for supporting the ozone generator tank 1, so as to ensure the stability of the ozone generator tank 1, and the bottom of the ozone generator tank 1 can be conveniently provided with the cooling water inlet 9 and the ozone outlet 3, so that the cooling water can be conveniently introduced and the ozone can be conveniently discharged.
Specifically, in this embodiment, the liquid oxygen is taken as a gas source, and the ozone generator producing 1kg/h of ozone is taken as an example to illustrate the availability of the residual heat of the ozone generator:
according to GB/T37894-2019 technical requirement of ozone generator for water treatment, under the normal working state, 1kg/h of ozone is produced, 10kg of liquid oxygen is consumed, and the circulating cooling water flow of the ozone generator is 1.5m3The water temperature rises by 2 deg.C (typically 22 deg.C for inlet water and 24 deg.C for outlet water).
The heat capacity of water is 4.2KJ/kg DEG C, 1.5m3The heat required per 2 ℃ rise of water is:
Q＝cm△t＝1000×1.5×4.2×2＝12600kj。
the heat of vaporization of oxygen is 3.04kj/mol, the heat of vaporization absorbed by 1kg of liquid oxygen is 3.04 kj/32X 1000 ═ 95kj, and the heat of vaporization absorbed by 10kg of liquid oxygen: 95 × 10 ═ 950 kj.
12600KJ is far greater than 950KJ, that is, the heat generated by the ozone generator can vaporize the liquid oxygen and save cooling energy 950KJ/12600KJ × 100% ≈ 7.54%.
In this embodiment, liquid oxygen in the liquid oxygen storage tank 14 enters the coil pipe 5 in the ozone generator tank 1 through the liquid oxygen inlet 15 through the delivery pipe, the coil pipe 5 absorbs heat of cooling water in the cooling water chamber 2, the liquid oxygen 17 is vaporized to generate gaseous oxygen, the oxygen flows into the oxygen pressure reducing valve 12 through the oxygen outlet 16 to be reduced in pressure, the reduced-pressure oxygen enters the first space 10 in the ozone generator tank and enters the ozone pipe 4, the oxygen generates ozone gas through high-frequency high-voltage corona discharge, the ozone gas enters the second space 11 through the other end of the ozone pipe 4, and ozone in the second space 11 is output through the ozone outlet 3.
In this embodiment 2, the liquid oxygen outlet in the liquid oxygen storage tank 14 is connected to the liquid oxygen inlet 15 on the ozone generator tank 4, and a 304 stainless steel pipe is used for connection, and the wall thickness of the pipe is not less than 3 mm.
The heat absorption coil pipes 5 are wound on the peripheries of all the ozone pipes 4, the length of each coil pipe is more than or equal to 5mm, and the complete vaporization of the liquid oxygen is ensured, of course, the length of each coil pipe 5 and the number of turns of the coil pipes 4 can be set according to actual conditions, and the liquid oxygen can be completely vaporized as long as the liquid oxygen can be ensured.
The diameter of the coil 5 is adjusted according to the ozone output of the ozone generator, for example, 0.5-1kg/h ozone generator adopts DN15 coil, 1-10kg/h ozone generator adopts DN32 coil, 10-50kg/h ozone generator adopts DN50 coil, and 50-100kg/h ozone generator adopts DN65 coil.
The oxygen output after vaporization is connected with an oxygen pressure reducing valve 12 by adopting a 304 stainless steel pipeline, and the pressure is reduced by the pressure reducing valve 12 and is less than 0.1 MPa. And then flows into the first space 10.
To sum up, the embodiment of the utility model provides an usable self waste heat carry out the ozone generator of vaporization to liquid oxygen, utilize the heat that ozone generator ionization in-process produced, vaporize liquid oxygen, both solved empty warm formula vaporizer because of ambient temperature low can not thorough problem of liquid oxygen gasification, saved the vaporizer again, also saved the energy simultaneously.
Example 2:
the embodiment 2 of the utility model provides an ozone generator of usable self waste heat vaporization liquid oxygen, include:
the ozone generator comprises an ozone generator tank body, an ozone pipe arranged in the ozone generator and a coil pipe arranged around the ozone pipe;
one end of the coil pipe extends out of the ozone generator tank body and is used for being communicated with the liquid oxygen storage tank, the other end of the coil pipe extends out of the ozone generator tank body and is used for being communicated with one end of an ozone pipe in the ozone generator tank body through a pressure reducing valve, and the other end of the ozone pipe is communicated with an outlet of the ozone generator tank body.
The specific structure of the ozone generator tank body is described in example 1, and is not described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes and modifications, and these modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (8)
1. A system for vaporizing liquid oxygen by utilizing waste heat of an ozone generator is characterized in that:
the method comprises the following steps:
the device comprises a liquid oxygen storage tank, an ozone generator tank and a pressure reducing valve;
the ozone pipe of the ozone generator tank body is wound with a coil pipe, the liquid oxygen storage tank is communicated with an input port of the coil pipe through a conveying pipeline, and an output port of the coil pipe is communicated with one end of a pressure reducing valve through the conveying pipeline;
the other end of the pressure reducing valve is communicated with an ozone pipe input port in the ozone generator tank body, and an ozone pipe output port is communicated with an output port of the ozone generator tank body.
2. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 1, wherein:
the coil pipe is arranged around the ozone pipe, one end of the coil pipe extends out of the ozone generator tank body to be communicated with the liquid oxygen source, the other end of the coil pipe is communicated with one end of the ozone pipe through a pressure reducing valve, and the other end of the ozone pipe is communicated with the ozone outlet.
3. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 1, wherein:
the ozone generator with the yield of 0.5kg/h-1kg/h adopts DN15 coil pipe, the ozone generator with the yield of 1kg/h-10kg/h adopts DN32 coil pipe, the ozone generator with the yield of 10kg/h-50kg/h adopts DN50 coil pipe, and the ozone generator with the yield of 50kg/h-100kg/h adopts DN65 coil pipe.
4. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 1, wherein:
the bottom of the ozone generator tank body is provided with a support pillar.
5. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 1, wherein:
a first partition plate and a second partition plate are arranged in the ozone generator tank body, and the first partition plate, the second partition plate and the ozone generator tank body jointly enclose a cooling water chamber.
6. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 5, wherein:
one end of the cooling water chamber is provided with a cooling water outlet, and the other end of the cooling water chamber is provided with a cooling water inlet;
one end of the coil pipe, which is communicated with the liquid oxygen storage tank, extends out of the tank body from one end of the cooling water chamber, which is provided with the cooling water outlet.
7. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 6, wherein:
the other end of the coil pipe extends out of the ozone generator tank body from one end of the cooling water chamber provided with a cooling water inlet and is communicated with the ozone pipe;
one side of the cooling water chamber is a first space defined by the first partition plate and the ozone generator tank body, and the other side of the cooling water chamber is a second space defined by the second partition plate and the ozone generator tank body.
8. The system for vaporizing liquid oxygen using waste heat of an ozone generator as claimed in claim 7, wherein:
one end of the ozone pipe is communicated with the first space, the other end of the ozone pipe is communicated with the second space, and the ozone outlet is communicated with the second space.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202120080150 | 2021-01-12 | ||
| CN2021200801503 | 2021-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275739A (en) * | 2021-01-12 | 2022-04-05 | 山东瑞清臭氧设备有限公司 | Method and system for vaporizing liquid oxygen by using residual heat of ozone generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114275739A (en) * | 2021-01-12 | 2022-04-05 | 山东瑞清臭氧设备有限公司 | Method and system for vaporizing liquid oxygen by using residual heat of ozone generator |
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