CN213984247U - Dry ice machine tail gas cooling volume recovery adjustment process units - Google Patents
Dry ice machine tail gas cooling volume recovery adjustment process units Download PDFInfo
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- CN213984247U CN213984247U CN202022476654.5U CN202022476654U CN213984247U CN 213984247 U CN213984247 U CN 213984247U CN 202022476654 U CN202022476654 U CN 202022476654U CN 213984247 U CN213984247 U CN 213984247U
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Abstract
The utility model discloses a cold volume of dry ice machine tail gas is retrieved and is adjusted process units, include: a dry ice machine; the cold energy recovery and regulation mechanism is communicated with the discharge end of the ice drying machine; the storage tank is communicated with the cold energy recovery and regulation mechanism; and a controller; wherein, cold volume recovery adjustment mechanism includes: the low-temperature heat regenerator is communicated with the ice drying machine and the storage tank; the high-temperature regenerator is communicated with the low-temperature regenerator; the purifier is communicated with the high-temperature regenerator; a cooling circulation assembly in communication with the purifier; the low-temperature refrigerator is respectively communicated with the low-temperature heat regenerator and the cooling circulation assembly; the cooling circulation assembly is electrically connected with the controller. According to the utility model discloses, its simple structure, easily operation, manufacturing cost is lower, and greatly reduced energy consumption has wide market using value.
Description
Technical Field
The utility model relates to a dry ice production field. More specifically, the utility model relates to a dry ice machine tail gas cooling volume retrieves regulation process units.
Background
In the field of dry ice production, it is well known to adopt tail gas cold quantity recovery devices with different structural forms to realize tail gas cold quantity recovery of a dry ice machine. In the process of researching and realizing the tail gas cold energy recovery of the dry ice machine, the inventor finds that the tail gas cold energy recovery device in the prior art at least has the following problems:
the tail gas discharged by the ice drying machine contains a large amount of cold energy, the conventional recovery device has a complex structure and higher cost, the use efficiency and practicability of the conventional recovery device are influenced, and the recovery device cannot fully utilize the cold energy recovery due to unstable exhaust amount of the dry ice machine, so that resources are wasted.
In view of the above, there is a need to develop a dry ice machine tail gas cooling quantity recycling and adjusting process device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Weak point to exist among the prior art, the utility model discloses a main objective is, provide a dry ice machine tail gas cooling volume recovery regulation process units, it is through setting up low temperature regenerator and high temperature regenerator, be equipped with two-stage backheat structure, can fully absorb the cold volume in the dry ice machine tail gas, through setting up the cooling cycle subassembly, can adjust cold volume recovery in the high temperature regenerator, the problem that dry ice machine tail gas discharge change leads to cold volume recovery not enough has been solved, guarantee the make full use of cold volume of tail gas, while simple structure, easy operation, manufacturing cost is lower, greatly reduced energy consumption, wide market using value has.
Another objective of the present invention is to provide a dry ice machine tail gas cooling amount recycling and adjusting process device, which
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a dry ice machine tail gas cooling amount recovery adjusting process device, including: a dry ice machine;
the cold energy recovery and regulation mechanism is communicated with the discharge end of the ice drying machine;
the storage tank is communicated with the cold energy recovery and regulation mechanism; and
a controller;
wherein, cold volume recovery adjustment mechanism includes: the low-temperature heat regenerator is communicated with the ice drying machine and the storage tank;
the high-temperature regenerator is communicated with the low-temperature regenerator;
the purifier is communicated with the high-temperature regenerator;
a cooling circulation assembly in communication with the purifier; and
the low-temperature refrigerator is respectively communicated with the low-temperature heat regenerator and the cooling circulation assembly;
the cooling circulation assembly is electrically connected with the controller.
Preferably, a carbon dioxide buffer and a carbon dioxide compressor are arranged between the high-temperature regenerator and the purifier.
Preferably, the low temperature regenerator includes: a first heat absorption channel and a first cooling channel;
the high-temperature heat regenerator comprises a second heat absorption channel and a second cooling channel;
the discharge end of the ice dryer is communicated with the input end of the first heat absorption channel, the output end of the first heat absorption channel is communicated with the input end of the second heat absorption channel, and the output end of the second heat absorption channel is communicated with the carbon dioxide buffer.
Preferably, an output end of the cryogenic refrigerator is communicated with an input end of the first cooling channel, and an output end of the first cooling channel is communicated with the storage tank.
Preferably, the cooling cycle assembly includes: the system comprises an ethylene glycol cooler, an ethylene glycol water tank and a variable-frequency ethylene glycol water pump;
the input end of the ethylene glycol water tank is communicated with the output end of the second cooling channel, the output end of the ethylene glycol water tank is communicated with the input end of the variable-frequency ethylene glycol water pump, the output end of the variable-frequency ethylene glycol water pump is respectively communicated with the ethylene glycol cooler and the input end of the second cooling channel, and the ethylene glycol cooler is respectively communicated with the purifier, the low-temperature refrigerator and the input end of the second cooling channel.
Preferably, a tail gas channel and a glycol water channel are arranged in the glycol cooler;
the input end of the tail gas channel is communicated with the purifier, the output end of the tail gas channel is communicated with the input end of the low-temperature refrigerator, the input end of the glycol water channel is communicated with the output end of the variable-frequency glycol water pump, and the output end of the glycol water channel is communicated with the input end of the second cooling channel.
Preferably, the periphery of the ethylene glycol water tank is coated with an insulating layer.
Preferably, a first regulating valve is arranged between the output end of the variable-frequency glycol water pump and the input end of the glycol water channel;
a second regulating valve is arranged between the output end of the variable-frequency glycol water pump and the input end of the second cooling channel;
the first regulating valve and the second regulating valve are electrically connected with the controller.
One of the above technical solutions has the following advantages or beneficial effects: the low-temperature heat regenerator and the high-temperature heat regenerator are arranged, and the two-stage heat regeneration structure is arranged, so that the cold quantity in the tail gas of the dry ice machine can be fully absorbed, the cold quantity recovery in the high-temperature heat regenerator can be adjusted by arranging the cooling circulation component, the problem of insufficient cold quantity recovery caused by the discharge change of the tail gas of the dry ice machine is solved, the full utilization of the cold quantity of the tail gas is ensured, and meanwhile, the structure is simple, the operation is easy, the production cost is lower, the energy consumption is greatly reduced, and the wide market application value is realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention, wherein:
fig. 1 is a schematic structural view of an ice machine tail gas cold quantity recycling and adjusting device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments, unless expressly described otherwise.
According to an embodiment of the utility model is shown in combination with figure 1, it can be seen that dry ice machine tail gas cooling volume recovery adjusts process units, and it includes: an ice dryer 1;
the cold energy recovery and regulation mechanism 2 is communicated with the discharge end of the ice drying machine 1;
the storage tank 3 is communicated with the cold energy recovery and regulation mechanism 2; and
a controller;
wherein, cold volume recovery adjustment mechanism 2 includes: a low-temperature regenerator 21, which is communicated with the ice dryer 1 and the storage tank 3;
a high temperature regenerator 22 in communication with the low temperature regenerator 21;
a purifier 25 in communication with the high temperature regenerator 22;
a cooling circulation module 26 communicating with the purifier 25; and
a low-temperature refrigerator 27 which communicates with the low-temperature regenerator 21 and the cooling cycle module 26, respectively;
the cooling circulation assembly 25 is electrically connected to the controller.
Further, a carbon dioxide buffer 23 and a carbon dioxide compressor 24 are provided between the high-temperature regenerator 22 and the purifier 25.
It can be understood that the carbon dioxide buffer 23 can buffer the tail gas discharged by the dry ice machine, the carbon dioxide compressor 24 can compress the tail gas discharged by the dry ice machine, and the purifier 25 can purify the tail gas discharged by the dry ice machine and purify the carbon dioxide.
Further, the low-temperature regenerator 21 includes: a first heat absorption channel 211 and a first cooling channel 212;
the high temperature regenerator 22 includes a second heat absorption channel 212 and a second cooling channel 222;
the discharge end of the ice dryer 1 is communicated with the input end of the first heat absorption channel 211, the output end of the first heat absorption channel 211 is communicated with the input end of the second heat absorption channel 221, and the output end of the second heat absorption channel 221 is communicated with the carbon dioxide buffer 23.
In a preferred embodiment, the output end of the second heat absorption channel 212 is provided with a platinum thermistor.
Further, the output end of the cryogenic refrigerator 27 communicates with the input end of the first cooling channel 212, and the output end of the first cooling channel 212 communicates with the storage tank 3.
Further, the cooling circulation assembly 26 includes: a glycol cooler 261, a glycol water tank 262 and a variable frequency glycol water pump 263;
the input end of the ethylene glycol water tank 262 is communicated with the output end of the second cooling channel 222, the output end of the ethylene glycol water tank 262 is communicated with the input end of the variable frequency ethylene glycol water pump 263, the output end of the variable frequency ethylene glycol water pump 263 is respectively communicated with the ethylene glycol cooler 261 and the input end of the second cooling channel 222, and the ethylene glycol cooler 261 is respectively communicated with the input ends of the purifier 26, the low-temperature refrigerator 27 and the second cooling channel 222.
Further, a tail gas channel 2611 and an ethylene glycol water channel 2612 are arranged in the ethylene glycol cooler 261;
an input end of the tail gas channel 2611 is communicated with the purifier 25, an output end of the tail gas channel 2611 is communicated with an input end of the low-temperature refrigerator 27, an input end of the glycol water channel 2612 is communicated with an output end of the variable-frequency glycol water pump 263, and an output end of the glycol water channel 2612 is communicated with an input end of the second cooling channel 222.
Understandably, the tail gas is initially cooled by the glycol cooler 261, reducing the load on the cryogenic refrigerator and reducing energy consumption.
Further, the outer circumference of the glycol water tank 262 is coated with an insulating layer.
It can be understood that the periphery of the glycol water tank 262 is coated with an insulating layer, so that the loss of cold energy of the glycol water tank 262 can be prevented.
Further, a first regulating valve 264 is arranged between the output end of the variable-frequency glycol water pump 263 and the input end of the glycol water channel 2612;
a second regulating valve 265 is arranged between the output end of the variable-frequency glycol water pump 263 and the input end of the second cooling channel 222;
the first and second regulator valves 264, 265 are both electrically connected to the controller.
It can be understood that the controller sends control signals to the first regulating valve 264 and the second regulating valve 265 respectively to control the opening and closing of the first regulating valve 264 and the opening and closing of the second regulating valve 265.
In a preferred embodiment, the glycol water at the bottom of the glycol water tank 262 is pressurized by the variable frequency glycol water pump 263 and then enters the glycol water channel 2612 through the first regulating valve 264 to cool the purified tail gas in the tail gas channel 2611;
when the amount of exhaust gas discharged from the dry ice machine varies, the controller controls the second regulating valve 265 to open or close to increase or decrease the flow rate of the glycol water flowing through the second cooling passage 222.
To sum up, the cold volume of dry ice machine tail gas is retrieved and is adjusted process units's work flow does:
after the tail gas discharged by the ice dryer 1 is primarily recycled and reheated in the first heat absorption channel 211 of the low-temperature heat regenerator 21, the cold energy is further recycled and reheated in the second heat absorption channel 221 of the high-temperature heat regenerator 22, pure carbon dioxide is obtained by buffering, compressing and purifying in the carbon dioxide buffer 23, the carbon dioxide compressor 24 and the purifier 25, and the compressed and purified carbon dioxide enters the tail gas channel 2611 of the glycol cooler 261; meanwhile, the controller controls the first light-opening valve 264 to open, the variable-frequency glycol water pump 263 drives the glycol water in the glycol water tank 262 to circulate in the glycol water channel 2612, the carbon dioxide in the tail gas channel 2611 absorbs the cold energy of the glycol water in the glycol water channel 2612 to carry out primary cooling to 0-5 ℃, and then enters the low-temperature refrigerator 27, the low-temperature refrigerator 27 further cools the carbon dioxide cooled to 0 to 5 ℃, cools the carbon dioxide cooled to 0 to 5 ℃ into liquid carbon dioxide, discharges the liquid carbon dioxide into the first cooling channel 212 of the low-temperature regenerator 21, in the first cooling channel 212, the carbon dioxide cooled to liquid state absorbs the cold energy of the tail gas in the first heat absorption channel 211, thereby further supercooling, and after further supercooling, the liquid carbon dioxide is sent to the storage tank 3 to be stored;
after the cold energy is absorbed by the glycol water in the glycol water channel 2612, the glycol water is discharged into the second cooling channel 222, in the second cooling channel 222, the glycol water absorbs the cold energy of the tail gas in the second heat absorption channel 212 to cool, and the cooled glycol water is discharged into the glycol water tank 262 to be stored for reuse; meanwhile, a second regulating valve 265 is arranged between the output end of the variable-frequency glycol water pump 263 and the input end of the second cooling channel 222, and the controller can control the opening and closing of the second regulating valve 265 so as to regulate the flow of glycol water entering the second cooling channel 222 and ensure the full utilization of the cold energy of the tail gas.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a cold volume recovery of dry ice machine tail gas adjusts process units which characterized in that includes: an ice dryer (1);
the cold energy recovery and regulation mechanism (2) is communicated with the discharge end of the ice drying machine (1);
the storage tank (3) is communicated with the cold energy recovery and regulation mechanism (2); and
a controller;
wherein the cold recovery regulating mechanism (2) comprises: a low-temperature regenerator (21) which is communicated with the ice dryer (1) and the storage tank (3);
a high temperature regenerator (22) in communication with the low temperature regenerator (21);
a purifier (25) in communication with the high temperature regenerator (22);
a cooling circulation assembly (26) in communication with the purifier (25); and
a low-temperature refrigerator (27) which communicates with the low-temperature regenerator (21) and the cooling cycle module (26), respectively;
the cooling circulation assembly (26) is electrically connected with the controller.
2. A dry ice machine tail gas cooling capacity recovery and adjustment process unit as claimed in claim 1, characterized in that a carbon dioxide buffer (23) and a carbon dioxide compressor (24) are provided between the high temperature regenerator (22) and the purifier (25).
3. A dry ice machine tail gas cooling capacity recovery conditioning process unit as claimed in claim 2, characterized in that the low temperature regenerator (21) comprises: a first heat absorption channel (211) and a first cooling channel (212);
the high-temperature regenerator (22) comprises a second heat absorption channel (221) and a second cooling channel (222);
the discharge end of the ice dryer (1) is communicated with the input end of the first heat absorption channel (211), the output end of the first heat absorption channel (211) is communicated with the input end of the second heat absorption channel (221), and the output end of the second heat absorption channel (221) is communicated with the carbon dioxide buffer (23).
4. A dry ice machine tail gas cooling capacity recovery conditioning process unit as claimed in claim 3, characterized in that the output of the cryogenic refrigerator (27) is in communication with the input of the first cooling channel (212), the output of the first cooling channel (212) being in communication with the storage tank (3).
5. A dry ice machine tail gas cooling capacity recovery conditioning process unit as claimed in claim 3, characterized in that the cooling cycle assembly (26) comprises: the system comprises a glycol cooler (261), a glycol water tank (262) and a variable-frequency glycol water pump (263);
the input end of the ethylene glycol water tank (262) is communicated with the output end of the second cooling channel (222), the output end of the ethylene glycol water tank (262) is communicated with the input end of the variable-frequency ethylene glycol water pump (263), the output end of the variable-frequency ethylene glycol water pump (263) is respectively communicated with the ethylene glycol cooler (261) and the input end of the second cooling channel (222), and the ethylene glycol cooler (261) is respectively communicated with the purifier (25), the low-temperature refrigerator (27) and the input end of the second cooling channel (222).
6. The dry ice machine tail gas cooling capacity recovery and regulation process device as claimed in claim 5, characterized in that an exhaust gas channel (2611) and a glycol water channel (2612) are arranged inside the glycol cooler (261);
the input end of the tail gas channel (2611) is communicated with the purifier (25), the output end of the tail gas channel (2611) is communicated with the input end of the low-temperature refrigerator (27), the input end of the glycol water channel (2612) is communicated with the output end of the variable-frequency glycol water pump (263), and the output end of the glycol water channel (2612) is communicated with the input end of the second cooling channel (222).
7. A dry ice machine tail gas cooling capacity recovery and adjustment process unit as claimed in claim 5, characterized in that the periphery of the ethylene glycol water tank (262) is coated with an insulating layer.
8. The dry ice machine tail gas cooling capacity recovery and regulation process device as claimed in claim 6, characterized in that a first regulating valve (264) is arranged between the output end of the variable frequency glycol water pump (263) and the input end of the glycol water channel (2612);
a second regulating valve (265) is arranged between the output end of the variable-frequency glycol water pump (263) and the input end of the second cooling channel (222);
the first regulating valve (264) and the second regulating valve (265) are both electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022476654.5U CN213984247U (en) | 2020-11-01 | 2020-11-01 | Dry ice machine tail gas cooling volume recovery adjustment process units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022476654.5U CN213984247U (en) | 2020-11-01 | 2020-11-01 | Dry ice machine tail gas cooling volume recovery adjustment process units |
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| Publication Number | Publication Date |
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| CN213984247U true CN213984247U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022476654.5U Active CN213984247U (en) | 2020-11-01 | 2020-11-01 | Dry ice machine tail gas cooling volume recovery adjustment process units |
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| CN (1) | CN213984247U (en) |
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