Carbon dioxide vaporizer device applied to grain storage

Abstract

The utility model discloses a carbon dioxide vaporizer device applied to grain storage, which comprises a storage tank, a first heat exchange tube, a second heat exchange tube and a mixed gas output tube, and the storage tank is used for storing liquid carbon dioxide; the input end of the first heat exchange pipe communicates with the storage tank and is provided with a plurality of first heat exchangers which are sequentially connected in series, and the output end of the first heat exchange pipe is provided with a first pressure reducing valve; the input end of the second heat exchange pipe communicates with the storage tank and is provided with a plurality of second heat exchangers which are sequentially connected in series, the number of the second heat exchangers is larger than that of the first heat exchangers, and the output end of the second heat exchange pipe is provided with a second pressure reducing valve; the output ends of the first heat exchange pipe and the second heat exchange pipe are connected with the input end of a mixed gas output pipe, a thermometer is arranged at the input end of the mixed gas output pipe, and a main valve is arranged at the output end of the mixed gas output pipe. The carbon dioxide vaporizer device applied to grain storage provided by the embodiment of the utility model can provide gaseous carbon dioxide at different temperatures so as to meet different temperature requirements of a granary.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide supply, in particular to a carbon dioxide vaporizer device applied to grain storage. Background Art

[0002] Modern granaries generally need to prevent and control pests and diseases, and must adopt green and environment-friendly methods. The existing technology generally prevents pests and diseases by introducing a certain concentration of carbon dioxide into the granary. Carbon dioxide is mainly used to control pests in raw grain storage, can also be used for mildew prevention storage of high-moisture grains, and can also be used for the storage of finished grains.

[0003] In the existing technology, the low-temperature carbon dioxide liquid in the storage tank is vaporized by a vaporizer to obtain normal-temperature gaseous carbon dioxide, and then introduced into the granary to prevent pests and diseases. However, the conventional vaporizer cannot provide gaseous carbon dioxide at different temperatures and cannot meet the different temperature requirements of the granary. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a carbon dioxide vaporizer device applied to grain storage, which can provide gaseous carbon dioxide at different temperatures to meet the different temperature requirements of the granary.

[0005] According to the carbon dioxide vaporizer device applied to grain storage provided by the utility model, it includes a storage tank, a first heat exchange tube, a second heat exchange tube and a mixed gas output pipe. The storage tank is used for storing liquid carbon dioxide. The input end of the first heat exchange tube is communicated with the storage tank and is provided with a plurality of first heat exchangers connected in series in sequence. The output end of the first heat exchange tube is provided with a first pressure reducing valve. The input end of the second heat exchange tube is communicated with the storage tank and is provided with a plurality of second heat exchangers connected in series in sequence. The number of the second heat exchangers is greater than that of the first heat exchangers. The output end of the second heat exchange tube is provided with a second pressure reducing valve. The output ends of the first heat exchange tube and the second heat exchange tube are both connected to the input end of the mixed gas output pipe. A thermometer is arranged at the input end of the mixed gas output pipe, and a main valve is arranged at the output end of the mixed gas output pipe.

[0006] The carbon dioxide vaporizer device applied to grain storage according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The carbon dioxide vaporizer device provided by the embodiment of the present utility model can vaporize the liquid carbon dioxide in the storage tank into gaseous carbon dioxide through the first heat exchange tube and the second heat exchange tube respectively. Since vaporization is a continuous endothermic process, when the number of the second heat exchangers is more than that of the first heat exchangers, the total heat absorbed by the liquid carbon dioxide in the second heat exchange tube is greater than that absorbed by the liquid carbon dioxide in the first heat exchange tube, resulting in a certain temperature difference between the gaseous carbon dioxide output by the second heat exchange tube and the gaseous carbon dioxide output by the first heat exchange tube. Then, the gaseous carbon dioxide with a lower temperature and the gaseous carbon dioxide with a higher temperature are simultaneously transported to the gas mixing output pipe for mixing, so as to obtain gaseous carbon dioxide with a temperature between the two, and the temperature of the mixed gas is detected by a thermometer. When it is necessary to adjust the temperature of the mixed gas, the output of the gaseous carbon dioxide with a lower temperature is adjusted through the first pressure reducing valve, or the output of the gaseous carbon dioxide with a higher temperature is adjusted through the second pressure reducing valve to adjust the temperature of the mixed gas. When the required temperature is obtained, the main valve is opened to introduce the mixed gas into the granary, so that gaseous carbon dioxide with different temperatures can be provided for the granary to meet different temperature requirements of the granary.

[0008] According to some embodiments of the present utility model, a first pressure gauge is arranged between the first heat exchanger and the first pressure reducing valve, and a first flowmeter is arranged between the first pressure reducing valve and the gas mixing output pipe.

[0009] According to some embodiments of the present utility model, a first filter is arranged between the first pressure gauge and the first pressure reducing valve.

[0010] According to some embodiments of the present utility model, a first pump body and a first inlet valve are sequentially arranged between the first pressure gauge and the first filter, and a first outlet valve and a second pump body are sequentially arranged between the first pressure reducing valve and the gas mixing output pipe.

[0011] According to some embodiments of the present utility model, a first safety valve group is arranged between the second heat exchanger and the second pressure reducing valve, and a second safety valve group is arranged between the second pressure reducing valve and the gas mixing output pipe.

[0012] According to some embodiments of the present utility model, a second filter is arranged between the first safety valve group and the second pressure reducing valve.

[0013] According to some embodiments of the present utility model, a third pump body and a second inlet valve are sequentially arranged between the first safety valve group and the second filter, and a second outlet valve and a fourth pump body are sequentially arranged between the second pressure reducing valve and the gas mixing output pipe.

[0014] According to some embodiments of the present utility model, a regulating valve is arranged between the thermometer and the main valve.

[0015] According to some embodiments of the present utility model, the output end of the gas mixing output pipe is connected with two branch pipes, and a third outlet valve is arranged on the branch pipe.

[0016] According to some embodiments of the present utility model, a third inlet valve is arranged between the storage tank and the first heat exchanger, and a fourth inlet valve is arranged between the storage tank and the second heat exchanger.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic diagram of a carbon dioxide vaporizer device applied to grain storage according to some embodiments of the present utility model;

[0020] Figure 2 is a partial schematic diagram of a carbon dioxide vaporizer device applied to grain storage according to some embodiments of the present utility model.

[0021] Among them, reference numerals:

[0022] The first heat exchange tube 100; the first pump body 101; the first inlet valve 102; the first outlet valve 103; the second pump body 104; the third inlet valve 105; the first heat exchanger 110; the first pressure reducing valve 120; the first pressure gauge 130; the first flow meter 140; the first filter 150;

[0023] The second heat exchange tube 200; the third pump body 201; the second inlet valve 202; the second outlet valve 203; the fourth pump body 204; the fourth inlet valve 205; the second heat exchanger 210; the second pressure reducing valve 220; the first safety valve group 230; the second safety valve group 240; the second filter 250;

[0024] The gas mixing output pipe 300; the thermometer 310; the main valve 320; the regulating valve 330; the branch pipe 340; the third outlet valve 350. Detailed Embodiments

[0025] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0026] In the description of the present utility model, it should be understood that for the orientation descriptions, such as the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc., they are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, and understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. In the description of the present utility model, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] Refer to Figure 1 and Figure 2, A carbon dioxide vaporizer device for grain storage according to the present utility model includes a storage tank, a first heat exchange tube 100, a second heat exchange tube 200, and a mixed gas output tube 300. The storage tank is used to store liquid carbon dioxide; the input end of the first heat exchange tube 100 is connected to the storage tank, and is provided with a plurality of first heat exchangers 110 connected in series in sequence. The output end of the first heat exchange tube 100 is provided with a first pressure reducing valve 120; the input end of the second heat exchange tube 200 is connected to the storage tank, and is provided with a plurality of second heat exchangers 210 connected in series in sequence. The number of the second heat exchangers 210 is greater than the number of the first heat exchangers 110. The output end of the second heat exchange tube 200 is provided with a second pressure reducing valve 220; the output ends of both the first heat exchange tube 100 and the second heat exchange tube 200 are connected to the input end of the mixed gas output tube 300. The input end of the mixed gas output tube 300 is provided with a thermometer 310, and the output end of the mixed gas output tube 300 is provided with a main valve 320.

[0030] Specifically, the carbon dioxide vaporizer device for grain storage provided by the embodiment of the present utility model can vaporize the liquid carbon dioxide in the storage tank into gaseous carbon dioxide through the first heat exchange tube 100 and the second heat exchange tube 200 respectively. Since vaporization is a continuous endothermic process, when the number of the second heat exchangers 210 is more than the number of the first heat exchangers 110, the total heat absorbed by the liquid carbon dioxide in the second heat exchange tube 200 is greater than the total heat absorbed by the liquid carbon dioxide in the first heat exchange tube 100, resulting in a certain temperature difference between the gaseous carbon dioxide output from the second heat exchange tube 200 and the gaseous carbon dioxide output from the first heat exchange tube 100. Then, the gaseous carbon dioxide with a lower temperature and the gaseous carbon dioxide with a higher temperature are simultaneously transported to the mixed gas output tube 300 for mixing, so as to obtain gaseous carbon dioxide with a temperature between the two, and the temperature of the mixed gas is detected by the thermometer 310. When it is necessary to adjust the temperature of the mixed gas, the output amount of the gaseous carbon dioxide with a lower temperature is adjusted through the first pressure reducing valve 120, or the output amount of the gaseous carbon dioxide with a higher temperature is adjusted through the second pressure reducing valve 220 to adjust the temperature of the mixed gas. When the required temperature is obtained, the main valve 320 is opened to introduce the mixed gas into the granary, so as to provide gaseous carbon dioxide with different temperatures for the granary to meet different temperature requirements of the granary.

[0031] It should be noted that in the embodiment of the present utility model, the specific number of the first heat exchangers 110 and the second heat exchangers 210 can be determined according to actual production requirements. For example, the number of the first heat exchangers 110 is two, and the number of the second heat exchangers 210 is four, but it is not limited thereto, and details are not described herein again.

[0032] Further, according to some embodiments of the present utility model, the carbon dioxide vaporizer device applied to grain storage further includes a first fan and a second fan (not shown in the figure). The first fan is arranged adjacent to the first heat exchanger 110, and the first fan is used to accelerate the air flow outside the first heat exchanger 110. The second fan is arranged adjacent to the second heat exchanger 210, and the second fan is used to accelerate the air flow outside the second heat exchanger 210.

[0033] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a first pressure gauge 130 is arranged between the first heat exchanger 110 and the first pressure reducing valve 120 to monitor the pressure of gaseous carbon dioxide passing through in real time. A first flowmeter 140 is arranged between the first pressure reducing valve 120 and the mixed gas output pipe 300 to monitor the flow rate of gaseous carbon dioxide output in real time, so as to facilitate corresponding flow rate adjustment through the first pressure reducing valve 120 according to different temperature requirements of the mixed gas.

[0034] It should be noted that in the embodiments of the present utility model, the second heat exchange tube 200 can also be provided with a second pressure gauge and a second flowmeter, which have the same functions as the above-mentioned first pressure gauge 130 and first flowmeter 140, and will not be elaborated here.

[0035] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a first filter 150 is arranged between the first pressure gauge 130 and the first pressure reducing valve 120 to filter gaseous carbon dioxide to reduce impurities, thereby reducing the impact on the grain in the granary.

[0036] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a first pump body 101 and a first inlet valve 102 are arranged in sequence between the first pressure gauge 130 and the first filter 150, and a first outlet valve 103 and a second pump body 104 are arranged in sequence between the first pressure reducing valve 120 and the mixed gas output pipe 300.

[0037] Specifically, the first pump body 101 and the second pump body 104 are respectively arranged to pump in and pump out gaseous carbon dioxide, and the first inlet valve 102 and the first outlet valve 103 are arranged to facilitate the control of the transportation of gaseous carbon dioxide.

[0038] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a first safety valve group 230 is arranged between the second heat exchanger 210 and the second pressure reducing valve 220, and a second safety valve group 240 is arranged between the second pressure reducing valve 220 and the mixed gas output pipe 300.

[0039] Specifically, by setting the first safety valve group 230 and the second safety valve group 240 to protect the second heat exchange tube 200, the second heat exchange tube 200 is prevented from being damaged due to excessive air pressure.

[0040] It should be noted that in the embodiment of the present utility model, the first heat exchange tube 100 can also be provided with a safety valve group, which will not be elaborated here.

[0041] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a second filter 250 is provided between the first safety valve group 230 and the second pressure reducing valve 220, so as to filter the gaseous carbon dioxide to reduce impurities, thereby reducing the impact on the grain in the granary.

[0042] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a third pump body 201 and a second inlet valve 202 are sequentially provided between the first safety valve group 230 and the second filter 250, and a second outlet valve 203 and a fourth pump body 204 are sequentially provided between the second pressure reducing valve 220 and the gas mixing output pipe 300.

[0043] Specifically, by setting the third pump body 201 and the fourth pump body 204, the pumping in and pumping out of the gaseous carbon dioxide are respectively realized, and by setting the second inlet valve 202 and the second outlet valve 203, the transportation of the gaseous carbon dioxide is facilitated to be controlled.

[0044] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, a regulating valve 330 is provided between the thermometer 310 and the main valve 320, so as to regulate the total amount of the gaseous carbon dioxide introduced into the granary.

[0045] Further, referring to Figure 1 and Figure 2 , according to some embodiments of the present utility model, the output end of the gas mixing output pipe 300 is connected with two branch pipes 340, and the branch pipes 340 are provided with third outlet valves 350.

[0046] It can be understood that during the actual use process, the gaseous carbon dioxide can be supplied to the granary through one of the branch pipes 340. When the branch pipe 340 is damaged, the third outlet valve 350 of the branch pipe 340 can be closed, and the third outlet valve 350 of the other branch pipe 340 can be opened for switching, so as to ensure the continuous supply work and avoid the occurrence of insect pests due to the interruption of gas supply.

[0047] It should be noted that in the embodiments of the present utility model, the number of branch pipes 340 is not limited to two, and can also be three, four or more, which can be determined according to the actual situation and will not be elaborated here.

[0048] Furthermore, referring to Figure 1 , according to some embodiments of the present utility model, a third inlet valve 105 is provided between the storage tank and the first heat exchanger 110 to control the input of liquid carbon dioxide, and a fourth inlet valve 205 is provided between the storage tank and the second heat exchanger 210 to control the input of liquid carbon dioxide.

[0049] It should be noted that in the embodiments of the present utility model, carbon dioxide gas can be output according to the required pressure, and can realize the automatic control of temperature regulation and pressure regulation. The carbon dioxide temperature control regulation can be arranged in multiple paths according to requirements. Therefore, the carbon dioxide vaporizer device applied to grain storage provided by the embodiments of the present utility model has good practicability.

[0050] The above has described the embodiments of the present utility model in detail with reference to the drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the purpose of the present utility model within the knowledge scope of those of ordinary skill in the art.

Claims

1. A carbon dioxide vaporizer device for grain storage, characterized in that: include: Tanks for storing liquid carbon dioxide; A first heat exchange tube, wherein the input end of the first heat exchange tube is connected to the storage tank and is provided with a plurality of first heat exchangers connected in series in sequence, and the output end of the first heat exchange tube is provided with a first pressure reducing valve; a second heat exchange pipe, wherein the input end of the second heat exchange pipe is connected to the storage tank and is provided with a plurality of second heat exchangers connected in series, the number of the second heat exchangers is greater than the number of the first heat exchangers, and the output end of the second heat exchange pipe is provided with a second pressure reducing valve; A gas mixture output pipe, wherein the output ends of the first heat exchange pipe and the second heat exchange pipe are both connected to the input end of the gas mixture output pipe, a thermometer is provided at the input end of the gas mixture output pipe, and a main valve is provided at the output end of the gas mixture output pipe.

2. The carbon dioxide vaporizer device for grain storage according to claim 1, characterized in that: A first pressure gauge is provided between the first heat exchanger and the first pressure reducing valve, and a first flow meter is provided between the first pressure reducing valve and the mixed gas output pipe.

3. The carbon dioxide vaporizer device for grain storage according to claim 2, characterized in that: A first filter is arranged between the first pressure gauge and the first pressure reducing valve.

4. The carbon dioxide vaporizer device for grain storage according to claim 3, characterized in that: A first pump body and a first inlet valve are sequentially arranged between the first pressure gauge and the first filter, and a first outlet valve and a second pump body are sequentially arranged between the first pressure reducing valve and the mixed gas output pipe.

5. The carbon dioxide vaporizer device for grain storage according to claim 1, characterized in that: A first safety valve group is arranged between the second heat exchanger and the second pressure reducing valve, and a second safety valve group is arranged between the second pressure reducing valve and the mixed gas output pipe.

6. The carbon dioxide vaporizer device for grain storage according to claim 5, characterized in that: A second filter is arranged between the first safety valve group and the second pressure reducing valve.

7. The carbon dioxide vaporizer device for grain storage according to claim 6, characterized in that: A third pump body and a second inlet valve are sequentially arranged between the first safety valve group and the second filter, and a second outlet valve and a fourth pump body are sequentially arranged between the second pressure reducing valve and the mixed gas output pipe.

8. The carbon dioxide vaporizer device for grain storage according to claim 1, characterized in that: A regulating valve is arranged between the thermometer and the main valve.

9. The carbon dioxide vaporizer device for grain storage according to claim 1, characterized in that: The output end of the mixed gas output pipe is connected to two branch pipes, and the branch pipes are provided with a third outlet valve.

10. The carbon dioxide vaporizer device for grain storage according to claim 1, characterized in that: A third inlet valve is provided between the storage tank and the first heat exchanger, and a fourth inlet valve is provided between the storage tank and the second heat exchanger.

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