CN216081552U - Hygrothermograph verification box - Google Patents
Hygrothermograph verification box Download PDFInfo
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- CN216081552U CN216081552U CN202122699708.9U CN202122699708U CN216081552U CN 216081552 U CN216081552 U CN 216081552U CN 202122699708 U CN202122699708 U CN 202122699708U CN 216081552 U CN216081552 U CN 216081552U
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Abstract
The utility model discloses a hygrothermograph verification box which comprises a box body, a circulating air structure, a hot water tank, a cold water tank and two cooling water pipe structures, wherein a working cavity is arranged in the box body; two air guide pipes are symmetrically arranged in the working cavity; meanwhile, the temperature is controlled by adopting the modes of heating (refrigerating) air and heating (refrigerating) liquid, so that the heating (refrigerating) efficiency is higher, and the heat transfer is fast; the stability and uniformity of the temperature in the temperature and humidity verification box reach higher levels.
Description
Technical Field
The utility model relates to the technical field of hygrothermograph verification, in particular to a hygrothermograph verification box.
Background
The application of the temperature and humidity detection box is as follows: 1. the device is suitable for testing the adaptability of electricians, electronics, instruments and meters, other products, parts and materials during storage, transportation and use in high-low temperature alternating temperature and humidity environments; the device is reliability test equipment for cold resistance, heat resistance, moisture resistance and dry resistance tests and quality control engineering of various raw materials and devices such as electronics, electricians, electrical appliances, plastics and the like; 2. the device is particularly suitable for high temperature resistant, low temperature resistant and temperature and humidity resistant alternating cycle tests of products such as optical fibers, LCDs, crystals, inductors, PCBs, batteries, computers, mobile phones and the like.
At present, the temperature control in the temperature and humidity verification box generally comprises blowing air or liquid into the verification box after heating (refrigeration) by a heating device (refrigeration) device so as to realize temperature rise and temperature reduction. Due to the inherent characteristics of poor thermal conductivity and small thermal capacity of air, the mode of heating (refrigerating) air cannot enable the stability and uniformity of temperature in the temperature and humidity verification box to reach high levels. And the temperature is controlled by heating (refrigerating) liquid, and although the liquid has good heat conductivity and large heat capacity, the heating (refrigerating) efficiency is low and the heat transfer is slow.
There is therefore a need for a thermo-hygrometer calibration box that solves the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a hygrothermograph verification box comprises a box body, a circulating air structure, a hot water tank, a cold water tank and two cooling water pipe structures, wherein a working cavity is arranged in the box body; two air guide pipes are symmetrically arranged in the working cavity;
the air guide pipe comprises an inner pipe, an outer pipe, two sealing sheets and a plurality of air pipes; the inner pipe is arranged in the outer pipe, the two sealing pieces are respectively and fixedly connected with the two ends of the inner pipe and the two ends of the outer pipe, and the outer wall of the inner pipe, the inner wall of the outer pipe and the two sealing pieces form a sealed exchange cavity; one ends of the plurality of air pipes are arranged on one side of the outer wall of the outer pipe, and the other ends of the plurality of air pipes penetrate through the exchange cavity and are communicated with the inner pipe;
the circulating air structure comprises a fan, an air inlet pipe, an air outlet pipe, a heating unit and a refrigerating unit; the heating unit and the refrigerating unit are accommodated in the air outlet pipe; one end of the air inlet pipe is communicated with the fan, and the other end of the air inlet pipe is communicated with the inner pipe of one of the air guide pipes; one end of the air outlet pipe is communicated with the fan, and the other end of the air outlet pipe is communicated with the inner pipe of the other air guide pipe;
each cooling water pipe structure is connected with an air guide pipe and comprises a circulating pump, a hot water pipe, a hot water return pipe, a cold water return pipe, a first shutoff door, a second shutoff door, a third shutoff door and a fourth shutoff door; the circulating pump is arranged on the hot water pipe; one end of the hot water pipe is communicated with the lower end of the exchange cavity, and the other end of the hot water pipe is communicated with the hot water tank; one end of the hot water return pipe is communicated with the hot water tank, and the other end of the hot water return pipe is communicated with the upper end of the exchange cavity; one end of the cold water pipe is communicated with the cold water tank, and the other end of the cold water pipe is communicated with the hot water pipe; one end of the cold water return pipe is communicated with the cold water tank, and the other end of the cold water return pipe is communicated with the hot water return pipe; the first shutoff door, the second shutoff door, the third shutoff door and the fourth shutoff door are respectively arranged on the hot water pipe, the hot water return pipe, the cold water pipe and the cold water return pipe; the first shutoff door is used for controlling the on-off of the hot water pipe, the second shutoff door is used for controlling the on-off of the hot water return pipe, the third shutoff door is used for controlling the on-off of the cold water pipe, and the fourth shutoff door is used for controlling the on-off of the fourth shutoff door.
Preferably, the inner tube and the outer tube have the same length, and the diameter of the inner tube is smaller than that of the outer tube; the central axes of the inner pipe and the outer pipe are collinear;
preferably, one ends of the plurality of air pipes are uniformly arranged on the outer wall of the outer pipe in a linear array.
Preferably, a humidifying device, a dehumidifying device, a temperature sensor and a humidity sensor are fixedly arranged in the working cavity;
preferably, the two air guide pipes are vertically fixed in the working cavity.
Preferably, the first shutoff gate, the second shutoff gate, the third shutoff gate and the fourth shutoff gate are all electric valves.
Preferably, the communication position of the cold water pipe and the hot water pipe is arranged between the circulating pump and the first shutoff valve; the communication position of the cold water return pipe and the hot water return pipe is arranged between the second shutoff door and the exchange cavity of the air guide pipe.
Preferably, a heater is arranged in the hot water tank, and a refrigerator is arranged in the cold water tank.
Preferably, the hygrothermograph verification box further comprises a controller, and the controller is respectively connected with the humidifying device, the dehumidifying device, the temperature sensor, the humidity sensor, the fan, the heating unit, the refrigerating unit, the heater, the refrigerator, the circulating pump, the first cutoff door, the second cutoff door, the third cutoff door and the fourth cutoff door.
Preferably, the inner tube and the outer tube are both made of a thermally conductive material.
Preferably, the refrigeration unit is a semiconductor refrigerator, and the heating unit is an electric heating pipe or an electric heating wire.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that: meanwhile, the temperature is controlled by adopting the modes of heating (refrigerating) air and heating (refrigerating) liquid, so that the heating (refrigerating) efficiency is higher, and the heat transfer is fast; the stability and uniformity of the temperature in the temperature and humidity verification box reach higher levels.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a thermo-hygrometer calibration box of the present invention;
FIG. 2 is a schematic view of the air duct structure of the hygrothermograph calibration box;
FIG. 3 is a schematic cross-sectional view of an air duct of the hygrothermograph calibration box;
FIG. 4 is a schematic diagram of the connection of the controller of the thermo-hygrometer calibration box of the present invention;
description of the main elements
| Case 1 | Circulating | |
| | Cooling water pipe structure 5 | Working chamber 11 |
| | | |
| | | Exchange |
| Circulating | | Hot |
| | Cold | Shutoff gate one 56 |
| Off gate two 57 | Shut off gate three 58 | Shut off gate four 59 |
| | | |
| | | |
| | | |
| | | |
The following detailed description of the utility model will be further described in conjunction with the above drawings
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1-4, a thermo-hygrometer calibration box comprises a box body 1, a circulating air structure 2, a hot water tank 3, a cold water tank 4 and two cooling water pipe structures 5, wherein a sealed working cavity 11 is arranged in the box body 1; two air guide pipes 12 are symmetrically arranged in the working cavity 11;
the air guide tube 12 comprises an inner tube 121, an outer tube 122, two sealing sheets 123 and a plurality of air tubes 124; the inner tube 121 is arranged inside the outer tube 122, the two sealing pieces 123 are respectively fixedly connected with two ends of the inner tube 121 and the outer tube 122, and the outer wall of the inner tube 121, the inner wall of the outer tube 122 and the two sealing pieces 123 enclose a sealed exchange cavity 125; one ends of the plurality of air pipes 124 are arranged on one side of the outer wall of the outer pipe 122, and the other ends of the plurality of air pipes pass through the exchange cavity 125 and are communicated with the inner pipe 121;
in the present embodiment, the inner tube 121 and the outer tube 122 have the same length, and the diameter of the inner tube 121 is smaller than that of the outer tube; the central axes of the inner tube 121 and the outer tube 122 are collinear;
in this embodiment, the ends of the air tubes 124 are uniformly arranged on the outer wall of the outer tube 122 in a linear array.
In the embodiment, a humidifying device 13, a dehumidifying device 14, a temperature sensor 15 and a humidity sensor 16 are also fixedly arranged in the working chamber 11;
in this embodiment, the two air ducts 12 are vertically fixed in the working chamber 11;
the circulating air structure 2 comprises a fan 21, an air inlet pipe 22, an air outlet pipe 23, a heating unit 24 and a refrigerating unit 25; the heating unit 24 and the refrigerating unit 25 are both accommodated in the air outlet pipe 23; one end of the air inlet pipe 22 is communicated with the fan 21, and the other end is communicated with the inner pipe 121 of one of the air guide pipes 12; one end of the air outlet pipe 23 is communicated with the fan 21, and the other end is communicated with the inner pipe 121 of the other air guide pipe 12;
each cooling water pipe structure 5 is connected with an air guide pipe 12, and each cooling water pipe structure 5 comprises a circulating pump 51, a hot water pipe 52, a hot water return pipe 53, a cold water pipe 54, a cold water return pipe 55, a first shutoff door 56, a second shutoff door 57, a third shutoff door 58 and a fourth shutoff door 59; the circulation pump 51 is provided on the hot water pipe 52; one end of the hot water pipe 52 is communicated with the lower end of the exchange cavity 125, and the other end is communicated with the hot water tank 3; one end of the hot water return pipe 53 is communicated with the hot water tank 3, and the other end is communicated with the upper end of the exchange cavity 125; one end of the cold water pipe 54 is communicated with the cold water tank 4, and the other end is communicated with the hot water pipe 52; one end of a cold water return pipe 55 is communicated with the cold water tank 4, and the other end is communicated with a hot water return pipe 53; the first shutoff gate 56, the second shutoff gate 57, the third shutoff gate 58 and the fourth shutoff gate 59 are respectively arranged on the hot water pipe 52, the hot water return pipe 53, the cold water pipe 54 and the cold water return pipe 55; the first shut-off door 56 is used for controlling the on-off of the hot water pipe 52, the second shut-off door 57 is used for controlling the on-off of the hot water return pipe 53, the third shut-off door 58 is used for controlling the on-off of the cold water pipe 54, and the fourth shut-off door 59 is used for controlling the on-off of the fourth shut-off door 59;
in this embodiment, the first shut-off valve 56, the second shut-off valve 57, the third shut-off valve 58 and the fourth shut-off valve 59 are all electrically operated valves.
In the present embodiment, the communication position of the cold water pipe 54 and the hot water pipe 52 is set between the circulation pump 51 and the first shutoff valve 56; the communication part of the cold water return pipe 55 and the hot water return pipe 53 is arranged between the second shutoff door 57 and the exchange cavity 125 of the air guide pipe 12.
In the present embodiment, the heater 31 is provided in the hot water tank 3, and the refrigerator 41 is provided in the cold water tank 4.
In this embodiment, the hygrothermograph verification box further includes a controller 10, and the controller 10 is respectively connected to the humidifying device 13, the dehumidifying device 14, the temperature sensor 15, the humidity sensor 16, the blower 21, the heating unit 24, the refrigerating unit 25, the heater 31, the refrigerator 41, the circulating pump 51, the first shutoff door 56, the second shutoff door 57, the third shutoff door 58, and the fourth shutoff door 59.
In the present embodiment, the inner tube 121 and the outer tube 122 are made of a heat conductive material.
In the present embodiment, the refrigerating unit 25 is a semiconductor refrigerator, and the heating unit 24 is an electric heating tube or an electric heating wire.
When the hygrothermograph verification box is used, equipment to be verified is placed in the working cavity 11, and the equipment to be verified is positioned between the two air guide pipes 12; when the temperature in the working cavity 11 needs to be raised, the heating unit 24 and the fan 21 are started; the air in the working chamber 11 firstly enters the inner tube 121 through the air tubes 124 of the air guide tube 12 connected with the air inlet tube 22, and then enters the air inlet tube 22 through the inner tube 121; air enters the air outlet pipe 23 through the fan 21, and after the air is heated by the heating unit 24 in the air outlet pipe 23, the air enters the inner pipe 121 of the air guide pipe 12 connected with the air outlet pipe 23 and then enters the working cavity 11 through the air pipe 124; namely, the flow direction of the air in the working chamber 11 is: working chamber 11 → air tubes 124 → inner tube 121 → air inlet tube 22 → blower 21 → air outlet tube 23 → heating unit 24 → inner tube 121 of another air duct 12 → air tubes 124 of another air duct 12 → working chamber 11.
Meanwhile, the circulating pump 51 is started, the first shutoff door 56 and the second shutoff door 57 are opened, and the third shutoff door 58 and the fourth shutoff door 59 are closed; the circulating pump 51 pumps the hot water in the hot water tank 3 into the lower end of the exchange cavity 125 through the hot water pipe 52, and then the hot water enters the hot water return pipe 53 through the upper end of the exchange cavity 125, and finally the hot water returns to the hot water tank 3 through the hot water return pipe 53; i.e. the flow direction of the hot water is: hot water tank 3 → hot water pipe 52 → lower end of the exchange chamber 125 → upper end of the exchange chamber 125 → hot water return pipe 53 → hot water tank 3.
Hot water is introduced into the exchange cavity 125 of the two air guide pipes 12 at the same time, so that the air in the inner pipe 121 is heated, and the heating temperature in the working cavity 11 is more stable and uniform.
When the temperature in the working cavity 11 needs to be reduced, the refrigerating unit 25 and the fan 21 are started; the air in the working chamber 11 firstly enters the inner tube 121 through the air tubes 124 of the air guide tube 12 connected with the air inlet tube 22, and then enters the air inlet tube 22 through the inner tube 121; air enters the air outlet pipe 23 through the fan 21, and after the air is cooled by the refrigerating unit 25 in the air outlet pipe 23, the air enters the inner pipe 121 of the air guide pipe 12 connected with the air outlet pipe 23 and then enters the working cavity 11 through the air pipe 124; namely, the flow direction of the air in the working chamber 11 is: working cavity 11 → air tubes 124 → inner tube 121 → air inlet tube 22 → blower 21 → air outlet tube 23 → refrigeration unit 25 → inner tube 121 of another air duct 12 → air tubes 124 of another air duct 12 → working cavity 11.
Meanwhile, the circulating pump 51 is started, the first shutoff door 56 and the second shutoff door 57 are closed, and the third shutoff door 58 and the fourth shutoff door 59 are opened; the circulating pump 51 pumps cold water in the cold water tank 4 into the lower end of the exchange cavity 125 through the cold water pipe 54 and the hot water pipe 52, the cold water enters the hot water return pipe 53 through the upper end of the exchange cavity 125, and finally the cold water enters the cold water return pipe 55 through the hot water return pipe 53 and finally returns to the cold water tank 4; i.e. the direction of flow of the cold water is: the cold water tank 4 → the cold water pipe 54 → the hot water pipe 52 → the lower end of the exchange chamber 125 → the upper end of the exchange chamber 125 → the hot water return pipe 53 → the cold water return pipe 55 → the cold water tank 4.
The exchange cavity 125 in the two air guide pipes 12 is simultaneously filled with cold water, so that the air in the inner pipe 121 is cooled, the controller cold water tank 4 and the refrigeration unit 25 are adjusted to the same temperature through the controller, and the air in the working cavity 11 is cooled doubly, so that the refrigeration temperature in the working cavity 11 is more stable and uniform.
The utility model has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the utility model. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.
Claims (7)
1. The utility model provides a hygrothermograph examination case which characterized in that: the hygrothermograph verification box comprises a box body, a circulating air structure, a hot water tank, a cold water tank and two cooling water pipe structures, wherein a working cavity is arranged in the box body; two air guide pipes are symmetrically arranged in the working cavity;
the air guide pipe comprises an inner pipe, an outer pipe, two sealing sheets and a plurality of air pipes; the inner pipe is arranged in the outer pipe, the two sealing pieces are respectively and fixedly connected with the two ends of the inner pipe and the two ends of the outer pipe, and the outer wall of the inner pipe, the inner wall of the outer pipe and the two sealing pieces form a sealed exchange cavity; one ends of the plurality of air pipes are arranged on one side of the outer wall of the outer pipe, and the other ends of the plurality of air pipes penetrate through the exchange cavity and are communicated with the inner pipe;
the circulating air structure comprises a fan, an air inlet pipe, an air outlet pipe, a heating unit and a refrigerating unit; the heating unit and the refrigerating unit are accommodated in the air outlet pipe; one end of the air inlet pipe is communicated with the fan, and the other end of the air inlet pipe is communicated with the inner pipe of one of the air guide pipes; one end of the air outlet pipe is communicated with the fan, and the other end of the air outlet pipe is communicated with the inner pipe of the other air guide pipe;
each cooling water pipe structure is connected with an air guide pipe and comprises a circulating pump, a hot water pipe, a hot water return pipe, a cold water return pipe, a first shutoff door, a second shutoff door, a third shutoff door and a fourth shutoff door; the circulating pump is arranged on the hot water pipe; one end of the hot water pipe is communicated with the lower end of the exchange cavity, and the other end of the hot water pipe is communicated with the hot water tank; one end of the hot water return pipe is communicated with the hot water tank, and the other end of the hot water return pipe is communicated with the upper end of the exchange cavity; one end of the cold water pipe is communicated with the cold water tank, and the other end of the cold water pipe is communicated with the hot water pipe; one end of the cold water return pipe is communicated with the cold water tank, and the other end of the cold water return pipe is communicated with the hot water return pipe; the first shutoff door, the second shutoff door, the third shutoff door and the fourth shutoff door are respectively arranged on the hot water pipe, the hot water return pipe, the cold water pipe and the cold water return pipe; the inner pipe and the outer pipe are both made of heat conducting materials.
2. The thermo-hygrometer calibration box as claimed in claim 1, wherein: a heater is arranged in the hot water tank, and a refrigerator is arranged in the cold water tank.
3. The thermo-hygrometer calibration box as claimed in claim 2, wherein: the working chamber is also fixedly provided with a humidifying device, a dehumidifying device, a temperature sensor and a humidity sensor.
4. The hygrothermograph verification box according to claim 3, wherein: the hygrothermograph verification box further comprises a controller, and the controller is respectively connected with the humidifying device, the dehumidifying device, the temperature sensor, the humidity sensor, the fan, the heating unit, the refrigerating unit, the heater, the refrigerator, the circulating pump, the first cutoff door, the second cutoff door, the third cutoff door and the fourth cutoff door.
5. The hygrothermograph certification box according to claim 4, wherein: the refrigerating unit is a semiconductor refrigerator, and the heating unit is an electric heating pipe.
6. The hygrothermograph certification box according to claim 5, wherein: the two air guide pipes are vertically fixed in the working cavity.
7. The hygrothermograph verification box according to claim 6, wherein: one end of each air pipe is uniformly arranged on the outer wall of the outer pipe in a linear array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699708.9U CN216081552U (en) | 2021-11-05 | 2021-11-05 | Hygrothermograph verification box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699708.9U CN216081552U (en) | 2021-11-05 | 2021-11-05 | Hygrothermograph verification box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216081552U true CN216081552U (en) | 2022-03-18 |
Family
ID=80659505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122699708.9U Active CN216081552U (en) | 2021-11-05 | 2021-11-05 | Hygrothermograph verification box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216081552U (en) |
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2021
- 2021-11-05 CN CN202122699708.9U patent/CN216081552U/en active Active
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