Greenhouse film low-temperature testing device
By designing a shed film low temperature testing device including a refrigeration compressor module and heating pipe, the problem that the prior art cannot simulate complex weather conditions and a narrow temperature control range is solved, and a more accurate shed film droplet performance test and a wider temperature control range are achieved.
Patent Information
- Application Number
- CN202420422226.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-05
AI Technical Summary
The existing high and low temperature control systems cannot simulate complex weather conditions, such as changes in humidity and fog in the shed, and the temperature controllable range is narrow, making it impossible to simulate extreme low temperature environments.
A low-temperature test device for the shed film is designed, including a control box and a low-temperature box arranged in parallel. The low-temperature box is equipped with a refrigeration compressor module, an evaporation barrel and a heating tube, which simulates an extremely low-temperature environment by combining evaporation and heating.
The device can more accurately simulate the drip performance of the drip under different meteorological conditions, expand the temperature control range, and simulate the drip effect of the drip in extreme use cases.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the field of experimental instrument devices, and in particular relates to a greenhouse film low-temperature testing device. Background Art
[0002] Agricultural greenhouse film plays an important role in the growth, yield and income of crops in agricultural production and construction. In the laboratory, greenhouse film not only needs to test the high-temperature drip performance, but also the low-temperature drip effect is equally important. The low-temperature test device is a device that can simulate the different changes of greenhouse film under different meteorological conditions in the natural environment. This device needs to simulate different parameters such as external temperature, internal temperature, humidity, etc. If the parameter setting is single or unstable, it will cause deviations in the experimental results and affect the accuracy of the results.
[0003] The existing technology only has a high and low temperature control system, that is, two setting modes: external temperature and internal temperature. The external temperature simulates the natural environment temperature outside the greenhouse, and the internal temperature simulates the temperature inside the greenhouse. There are few simulation conditions and a narrow controllable range. It is impossible to simulate a variety of complex weather conditions in reality, such as humidity and fog changes in the greenhouse. In addition, the temperature control range of the existing high and low temperature control system is narrow, with an external temperature control range of 0~-15℃ and an internal temperature control range of 0~60℃, and it is impossible to simulate individual extreme conditions. Utility Model Content
[0004] The utility model provides a greenhouse film low-temperature testing device. The use of the device can enrich experimental conditions, simulate the use of greenhouse films under a variety of different meteorological conditions, and be closer to the actual situation, so as to more accurately and specifically test the dripping performance of the greenhouse film under different low-temperature conditions.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a greenhouse film low-temperature testing device, the testing device comprising a control box and a low-temperature box arranged in parallel; a refrigeration compressor module is arranged at the lower inner side of the low-temperature box; the refrigeration compressor module is installed with an evaporation barrel through a bottom bracket arranged at the upper part thereof; a film fixing plate is arranged at the upper part of the evaporation barrel, and a pressure plate is arranged at the upper part of the film fixing plate; a control cover is arranged at the upper part of the control box, and a control panel is arranged above the control cover.
[0006] Preferably, a heating module is also provided inside the control box.
[0007] Preferably, a visible cover is provided on the upper portion of the low temperature box.
[0008] Preferably, a refrigeration and heat dissipation port is provided on the side of the low-temperature box.
[0009] Preferably, a heating tube is provided outside the evaporating barrel.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. Low temperature test device diversifies the test conditions and more accurately simulates the film dripping effect under different meteorological conditions;
[0012] 2. The temperature control range is wide, which can simulate the dripping effect of greenhouse film under some extreme usage conditions;
[0013] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0015] Figure 1 This is a three-dimensional diagram of the test device of the utility model;
[0016] Figure 2 This is the AA cross-sectional view of the test device of the utility model;
[0017] Figure 3 This is a top view of the test device of the utility model;
[0018] Figure 4 It is a side view of the testing device of the utility model;
[0019] In the figure: 1. control box, 2. low-temperature box, 3. evaporator, 4. refrigeration compressor module, 5. heating module, 6. bottom bracket, 7. pressure plate, 8. film fixing plate, 9. visible cover, 10. control cover, 11. control panel, 12. refrigeration heat dissipation port, 13. heating tube. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0023] See also Figure 1-4 The utility model provides a technical solution: a greenhouse film low-temperature testing device, the testing device comprises a control box 1 and a low-temperature box 2 arranged in parallel; a refrigeration compressor module 4 is arranged at the lower inner side of the low-temperature box 2; the refrigeration compressor module 4 is installed with an evaporation barrel 3 through a bottom bracket 6 arranged at the upper part thereof; a film fixing plate 8 is arranged at the upper part of the evaporation barrel 3, and a pressure plate 7 is arranged at the upper part of the film fixing plate 8; a control cover plate 10 is arranged at the upper part of the control box 1, and a control panel 11 is arranged above the control cover plate 10.
[0024] A heating module 5 is also provided inside the control box 1. A visible cover plate 9 is provided on the top of the low-temperature box 2. A cooling and heat dissipation port 12 is provided on the side of the low-temperature box 2. A heating pipe 13 is provided outside the evaporation barrel 3.
[0025] Working principle: When it is necessary to test the dripping performance of the greenhouse film in a low-temperature environment, open the visible cover 9, place the greenhouse film on the film fixing plate 8, and press it with the pressing plate 7, then start the refrigeration compressor module 4 to use the evaporation barrel 3 for evaporation to produce a low-temperature effect, which is similar to the refrigeration principle of a refrigerator. At the same time, start the heating tube 13, so that the inside of the low-temperature box 2 located outside the evaporation barrel 3 generates high temperature, which creates a temperature difference on both sides of the greenhouse film, simulating the dripping performance of the greenhouse film in an extreme environment. Observe the initial effect for about five minutes, observe the spreading state of the hanging drops for two to three hours, and observe the durability for twenty-four hours as the loss for one month. In order to prevent the temperature inside the control box 1 from being too low, it can be heated and kept warm by the heating module 5.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A greenhouse film low temperature testing device, characterized in that: The test device comprises a control box (1) and a low-temperature box (2) arranged in parallel; a refrigeration compressor module (4) is arranged at the lower inner part of the low-temperature box (2); the refrigeration compressor module (4) is mounted with an evaporation barrel (3) via a bottom bracket (6) arranged at the upper part thereof; a film fixing plate (8) is arranged at the upper part of the evaporation barrel (3), and a pressure plate (7) is arranged at the upper part of the film fixing plate (8); a control cover plate (10) is arranged at the upper part of the control box (1), and a control panel (11) is arranged above the control cover plate (10).
2. A greenhouse film low temperature testing device according to claim 1, characterized in that: A heating module (5) is also provided inside the control box (1).
3. A greenhouse film low temperature testing device according to claim 1, characterized in that: A visible cover plate (9) is provided on the upper portion of the low-temperature box (2).
4. A greenhouse film low temperature testing device according to claim 1, characterized in that: A refrigeration and heat dissipation opening (12) is provided on the side of the low-temperature box (2).
5. The greenhouse film low temperature testing device according to claim 1, characterized in that: A heating tube (13) is arranged outside the evaporation barrel (3).