Equipment for stably supplying carbon dioxide gas to EPP foaming kettle
By employing a spiral finned spray mechanism in the carbon dioxide supply device of the EPP foaming kettle, hot water is sprayed to ensure complete vaporization of liquid carbon dioxide, thus solving the problem of unstable gas supply pressure and achieving a stable gas supply effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
In existing EPP carbon dioxide supply devices, the liquid carbon dioxide is not completely vaporized, resulting in unstable supply pressure and affecting the foaming effect.
By installing spiral fins on the outer wall of the heat exchange pipe and using a spray mechanism with spiral fin structure to spray hot water onto the outer wall of the heat exchange pipe, the liquid carbon dioxide is ensured to be completely vaporized, preventing frost formation on the heat exchange pipe and stabilizing the gas supply.
It achieves complete vaporization of liquid carbon dioxide, avoids fluctuations in gas supply pressure, and ensures a stable gas supply effect for the foaming kettle.
Smart Images
Figure CN224060286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of processing high molecular substances into porous or honeycomb products or materials, and particularly relates to a device for stably supplying carbon dioxide gas to an EPP foaming kettle. BACKGROUND
[0002] There is a carbon dioxide gas supply device for EPP in the prior art, which comprises a liquid carbon dioxide input end, a booster pump, a diffuser, a gaseous carbon dioxide storage tank and a foaming kettle. After the liquid carbon dioxide is output, it is pressurized, then diffused and vaporized, and then the gaseous carbon dioxide with pressure is input into the gaseous carbon dioxide storage tank for pressure maintaining. In this way, the gaseous carbon dioxide input into the foaming kettle can maintain constant pressure.
[0003] However, the carbon dioxide gas supply device mainly relies on the diffuser to gasify the liquid carbon dioxide and store it in the storage tank. When the liquid carbon dioxide is gasified, it absorbs heat in the air and causes the temperature of the heat exchange pipeline to decrease. When the water vapor in the air meets the heat exchange pipeline with lower temperature, frost may appear on the heat exchange pipeline, which affects the heat exchange efficiency of the heat exchange pipeline, causes incomplete gasification of the liquid carbon dioxide, and the liquid carbon dioxide that is not fully gasified enters the storage tank. The gasification of the liquid carbon dioxide in the storage tank causes the internal pressure to fluctuate, resulting in unstable gas supply pressure of the carbon dioxide gas supply device. CONTENT OF THE UTILITY MODEL
[0004] The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present utility model provides a device that can stably supply gas to a foaming kettle, which adopts the technical scheme comprising:
[0005] A device for stably supplying carbon dioxide gas to an EPP foaming kettle, comprising a liquid input end, a booster pump, a diffuser and a storage tank connected in sequence. The diffuser comprises a frame structure and a spraying mechanism. A plurality of heat exchange pipelines are installed in the frame structure. Each heat exchange pipeline is provided with a spiral structure outside. The spraying mechanism is arranged on the upper end of the frame structure and is used for spraying hot water to the outer wall of the heat exchange pipeline.
[0006] In an embodiment of the present utility model, the spiral structure is a spiral fin arranged on the outer wall of the heat exchange pipeline. The hot water sprayed onto the outer wall of the heat exchange pipeline can gather on the spiral fin and flow down along the spiral fin.
[0007] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: the spraying mechanism includes main pipe, spray pipe, both sides of each row of heat exchange pipe are respectively provided with horizontally distributed main pipe, and the main pipe is arranged above the frame structure, and each main pipe is installed with several vertical distribution spray pipes, each spray pipe is respectively installed with nozzle assembly, and each nozzle assembly is respectively included at least one towards the spray head of heat exchange pipe, hot water is sent into the spray head after passing through the main pipe, spray pipe and sprays.
[0008] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: each the spray pipe is installed with multiple nozzle assemblies, and multiple nozzle assemblies are spaced along the length direction of the spray pipe.
[0009] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: multiple the nozzle assembly is sprayed hot water after being selectively turned on.
[0010] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: the spray pipe is equipped with rotatable valve core pipe, the valve core pipe is equipped with water supply passage and multiple through-hole groups communicated with the water supply passage, multiple through-hole groups and multiple nozzle assemblies are one-to-one correspondence, each through-hole group includes the through-hole corresponding to multiple spray heads one-to-one, and the through-hole of multiple through-hole groups is staggered distribution, the valve core pipe can be rotated in the spray pipe to make any one through-hole group and the nozzle assembly be turned on.
[0011] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: the lower end of the valve core pipe passes through the spray pipe and is connected with drive motor by transmission structure.
[0012] The utility model discloses a kind of embodiments of the utility model solve its technical problems The technical scheme it adopts is: still include heating tank, recovery tank, recovery pump, the recovery tank is installed in the lower end of the frame structure, recovery port is equipped on the recovery tank, recovery port is communicated with the heating tank by recovery pump, and the heating tank is communicated with the spray pipe by water supply pump.
[0013] The utility model has the advantages that: spraying mechanism sprays hot water to the outer wall of heat exchange pipe, after liquid carbon dioxide is sent into the inside of heat exchange pipe of diffuser, on the one hand, liquid carbon dioxide absorbs external heat through heat exchange pipe, can provide gasification heat for liquid carbon dioxide, is favorable to guarantee that liquid carbon dioxide gasification is complete, avoids that liquid carbon dioxide enters storage tank and gasification causes its internal gas pressure fluctuation, accurately and stably supplies carbon dioxide gas for EPP bead foaming kettle, on the other hand, hot water contacts heat exchange pipe, can avoid that the temperature of heat exchange pipe is reduced due to carbon dioxide heat absorption and leads to frost, avoids frost and affects the heat exchange efficiency of heat exchange pipe. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0015] Fig. 1 This is a schematic diagram of the structure of the device described in this embodiment;
[0016] Fig. 2 This is a schematic diagram of the diffuser described in this embodiment;
[0017] Fig. 3 This is a cross-sectional view of the diffuser described in this embodiment. Detailed Implementation
[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0019] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0022] Reference Figs. 1-3The embodiment of the present application is proposed, and the equipment for stably supplying carbon dioxide gas for the EPP foaming kettle comprises a liquid input end 10, a booster pump 20, a diffuser 30 and a storage tank 40 connected in sequence, the diffuser 30 comprises a frame structure 31 and a spraying mechanism 32, a plurality of rows of heat exchange pipes 33 are arranged in the frame structure 31, a spiral structure 34 is arranged on the outer wall of each heat exchange pipe 33, and the spraying mechanism 32 is arranged on the upper end of the frame structure 31 and used for spraying hot water to the outer wall of the heat exchange pipe 33.
[0023] The spraying mechanism 32 sprays hot water to the outer wall of the heat exchange pipe 33, after the liquid carbon dioxide is sent into the heat exchange pipe 33 of the diffuser 30, on one hand, the liquid carbon dioxide can absorb the heat outside the heat exchange pipe 33 to provide the heat for the gasification of the liquid carbon dioxide, which is beneficial to ensure the complete gasification of the liquid carbon dioxide, on the other hand, the contact of the hot water with the heat exchange pipe 33 can avoid the frost caused by the temperature reduction of the heat exchange pipe 33 due to the heat absorption of the carbon dioxide, and avoid the influence of the frost on the heat exchange efficiency of the heat exchange pipe 33, and on the other hand, the sprayed water on the outer wall of the heat exchange pipe 33 is cooled after heat exchange with the heat exchange pipe 33, the sprayed water after temperature reduction is gathered on the spiral structure 34 and flows down along the spiral structure 34, the spiral parameters of the spiral structure 34 are designed to make the sprayed water continue to exchange heat with the outer wall of the heat exchange pipe 33, reduce the contact area of the sprayed water after temperature reduction with the heat exchange pipe 33, and make the sprayed water separate from the heat exchange pipe 33 along the spiral structure 34, so as to avoid the influence of the sprayed water with too low temperature on the continuous heat exchange between the heat exchange pipe 33 and the outside.
[0024] In the embodiment, the two ends of each row of heat exchange pipes 33 are respectively communicated with a feeding collecting pipe 331 and a discharging collecting pipe 332, the feeding collecting pipe is communicated with the liquid input end 10 to realize the input of the liquid carbon dioxide into the heat exchange pipe 33, and the carbon dioxide after gasification is transported to the EPP bead foaming kettle through the discharging collecting pipe.
[0025] Specifically, the spiral structure 34 is a spiral fin arranged on the outer wall of the heat exchange pipe 33, and the hot water sprayed on the outer wall of the heat exchange pipe 33 can be gathered on the spiral fin along the outer wall of the heat exchange pipe 33 and flow down along the spiral fin.
[0026] Referring to the drawings, the spraying mechanism 32 comprises a main pipe 321 and a spraying pipe 322, the two sides of each row of heat exchange pipes 33 are respectively provided with horizontally distributed main pipes 321, and the main pipes 321 are arranged above the frame structure 31, a plurality of vertically distributed spraying pipes 322 are arranged on each main pipe 321, and a nozzle assembly 323 is arranged on each spraying pipe 322, each nozzle assembly 323 comprises at least one nozzle head facing the heat exchange pipes 33, and hot water is sprayed into the nozzle head through the spraying pipe 322.
[0027] Referring to the drawings, only one nozzle head is arranged on the spraying pipe 322 on the two sides of the frame structure 31, and at least two nozzle heads are arranged on the spraying pipe 322 between the two rows of heat exchange pipes 33, so that hot water is sufficiently sprayed on the side walls of the heat exchange pipes 33, and the heat exchange efficiency of the heat exchange pipes 33 is improved.
[0028] In the embodiment, a plurality of nozzle assemblies 323 are arranged on each spraying pipe 322, the plurality of nozzle assemblies 323 are distributed along the length direction of the spraying pipe 322, and the plurality of nozzle assemblies 323 spray hot water alternately.
[0029] Since the temperature of the sprayed hot water decreases after heat exchange with the heat exchange pipes 33 for a period of time, in order to ensure the gasification efficiency of carbon dioxide of the lower section of the heat exchange pipes 33, a plurality of vertically distributed nozzle assemblies 323 are designed, and the plurality of nozzle assemblies 323 spray hot water alternately, so that hot water with the same temperature is reciprocally sprayed on the entire wall of the heat exchange pipes 33, thereby ensuring that the lower section of the heat exchange pipes 33 also has a high heat exchange efficiency.
[0030] Preferably, the plurality of nozzle assemblies 323 spray hot water alternately, compared with continuously spraying hot water on the outer wall of the heat exchange pipes 33, the heat exchange pipes 33 can exchange heat with air and the sprayed hot water, and the amount of hot water is saved.
[0031] Specifically, the spraying pipe 322 is provided with a rotatable valve core pipe 324, the valve core pipe 324 is provided with a water supply channel 3241 and a plurality of through hole groups 3242 in communication with the water supply channel 3241, the plurality of through hole groups 3242 correspond to the plurality of nozzle assemblies 323 one by one, each through hole group 3242 comprises through holes corresponding to the plurality of nozzle heads one by one, and the through holes of the plurality of through hole groups 3242 are staggered, and the valve core pipe 324 can rotate in the spraying pipe 322 to make any one of the through hole groups 3242 in communication with the nozzle assembly 323.
[0032] The valve core pipe 324 rotates in the spray pipe 322 to realize intermittent conduction of the plurality of nozzle assemblies 323. Specifically, referring to the drawings, the two ends of the valve core pipe 324 are rotatably installed in the spray pipe through bearings, respectively, the lower end of the valve core pipe 324 is closed, the lower end of the valve core pipe 324 is connected with the driving motor 325 through a transmission structure after passing through the spray pipe 322, the lower end of the spray pipe 322 is provided with a mounting chamber for mounting the driving motor 325 and the transmission structure, to avoid the spray water flowing into the mounting chamber to cause the driving motor 325 to be unable to work normally, the transmission structure can be a worm gear transmission assembly, a gear transmission assembly or the like, and the specific structure and working principle of the transmission structure are not limited in the embodiment.
[0033] Based on the above, the heating tank 50, the recovery box 60 and the recovery pump 70 are further included, the recovery box 60 is installed at the lower end of the frame structure 31, the recovery box 60 is provided with a recovery port, the recovery port is communicated with the heating tank 50 through the recovery pump 70, and the heating tank 50 is communicated with the spray pipe 322 through the water supply pump 80.
[0034] The sprayed hot water is collected into the recovery box 60 through the recovery hole at the lower end of the frame structure, and is heated by the heating tank 50 and then sent into the spray pipe 322 for spraying, so that the spray water is recycled.
[0035] The skilled in the art can also set a filter structure, such as a filter screen, in the recovery box 60 to prevent foreign matters from entering the heating tank 50 to cause the spray mechanism 32 to be blocked or damaged.
[0036] Of course, the utility model is not limited to the above-mentioned embodiment, and the skilled in the art can also make equivalent transformation or replacement without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the application.
Claims
1. A device for stably supplying carbon dioxide gas to an EPP foaming reactor, characterized in that, The application relates to a liquid heating device, which comprises a liquid input end (10), a booster pump (20), a diffuser (30) and a storage tank (40) connected in sequence, wherein the diffuser (30) comprises a frame structure (31) and a spraying mechanism (32), a plurality of rows of heat exchange pipes (33) are arranged in the frame structure (31), a spiral structure (34) is arranged on the outer wall of each heat exchange pipe (33), and the spraying mechanism (32) is arranged on the upper end of the frame structure (31) and used for spraying hot water to the outer wall of the heat exchange pipe (33).
2. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to claim 1, wherein The spiral structure (34) is a spiral fin arranged on the outer wall of the heat exchange pipe (33), and the hot water sprayed to the outer wall of the heat exchange pipe (33) can gather on the spiral fin along the outer wall of the heat exchange pipe (33) and flow down along the spiral fin.
3. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to claim 1, wherein The spraying mechanism (32) comprises a main pipe (321) and a spraying pipe (322), a main pipe (321) is horizontally arranged on the two sides of each row of heat exchange pipes (33), the main pipe (321) is arranged above the frame structure (31), a plurality of vertical spraying pipes (322) are arranged on each main pipe (321), a nozzle assembly (323) is arranged on each spraying pipe (322), each nozzle assembly (323) comprises at least one nozzle head facing the heat exchange pipe (33), and hot water is sprayed into the nozzle head after passing through the main pipe (321) and the spraying pipe (322).
4. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to claim 3, wherein A plurality of nozzle assemblies (323) are arranged on each spraying pipe (322) and are spaced apart along the length direction of the spraying pipe (322).
5. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to claim 4, wherein The plurality of nozzle assemblies (323) are selectively turned on to spray hot water.
6. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to any one of claims 3 to 5, characterized by, A rotatable valve core pipe (324) is arranged in the spraying pipe (322), the valve core pipe (324) is provided with a water supply channel (3241) and a plurality of through hole groups (3242) in communication with the water supply channel (3241), the plurality of through hole groups (3242) correspond to the plurality of nozzle assemblies (323) in a one-to-one manner, each through hole group (3242) comprises through holes corresponding to the plurality of nozzle heads in a one-to-one manner, the through holes of the plurality of through hole groups (3242) are staggered, and the valve core pipe (324) can be rotated in the spraying pipe (322) to make any one through hole group (3242) communicate with the nozzle assembly (323).
7. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to claim 6, wherein The lower end of the valve core pipe (324) is connected with a driving motor (325) through a transmission structure after penetrating through the spraying pipe (322).
8. The apparatus for stably supplying carbon dioxide gas to an EPP foaming kettle according to any one of claims 3 to 5, characterized by, The application further relates to a heating tank (50), a recovery box (60) and a recovery pump (70), the recovery box (60) is arranged at the lower end of the frame structure (31), the recovery box (60) is provided with a recovery port, the recovery port is in communication with the heating tank (50) through the recovery pump (70), and the heating tank (50) is in communication with the spraying pipe (322) through a water supply pump (80).