Environment isolation box, environment isolation device and model test experiment device

Abstract

The utility model relates to the field of chemical modeling test, and discloses an environment isolation box, an environment isolation device and a modeling test experimental device. The environment isolation box comprises a box body which is internally provided with a cavity, and the front wall surface of the box body is provided with an opening; the box door is arranged on the opening of the box body; the gas interface is used for supplying gas to the interior of the box body and exhausting gas from the interior of the box body; the power interface is used for supplying power to the interior of the box body; and the pressure gauge is used for obtaining a pressure value in the box body. The environment isolation device adopts the environment isolation box and comprises a main body frame, a display controller, air exhaust equipment and an air storage bottle. The mold test experimental device adopts the environment isolation device and comprises a raw material bottle and a conveying pump. The conveying pump is used for solving the problem that water vapor and oxygen are mixed when the conveying pump conveys reaction materials, and the effects that the reaction materials are conveyed under the water-free and oxygen-free conditions, and the accuracy of model test experimental data is improved are achieved.

Description

Technical Field

[0001] The present application belongs to the field of chemical simulation testing, and specifically relates to an environmental isolation box, an environmental isolation device and a simulation test experimental device. Background Art

[0002] During the development of polyethylene catalysts, it is necessary to study the amplification effect of the reaction and determine the rules for adjusting the formulation components, reaction conditions and other parameters under different volumes, that is, to conduct model tests. Through model tests, the influence of each reaction parameter on the process results is fully exposed, so that several key mixing parameters that affect the process results can be grasped, and the optimized values ​​of these mixing parameters can be obtained, so that the nonlinear amplification of similar process results can be achieved through the similar values ​​of the mixing parameters, and the changing rules of the mixing parameters in large reactors and small reactors can be fully grasped.

[0003] The reaction parameters of the simulation test are usually quite demanding, and some reaction materials need to be added to the reactor under water-free and oxygen-free conditions. The reaction materials are usually transported to the reactor through a delivery pump and a pipeline. Due to the breathing effect of the delivery pump, even if the sealing performance of the delivery pump is good, water vapor and oxygen in the air will still mix with the reaction materials and enter the reactor, affecting the reaction process of the reaction materials and further affecting the accuracy of the simulation test data. Utility Model Content

[0004] The purpose of this application is to provide an environmental isolation box, an environmental isolation device and a simulation test device, which are used to solve the problem of water vapor and oxygen being mixed in when the delivery pump delivers the reaction materials, so as to achieve the effect of delivering the reaction materials under water-free and oxygen-free conditions and improve the accuracy of the simulation test data.

[0005] In order to achieve the above-mentioned object, the first aspect of the present application provides an environmental isolation box, comprising:

[0006] The box body has a cavity inside and an opening on the front wall;

[0007] A box door, arranged on the opening of the box body;

[0008] A gas interface, used for supplying gas to the interior of the box and extracting gas from the interior of the box;

[0009] A power interface, used to supply power to the interior of the box;

[0010] The pressure gauge is used to obtain the pressure value inside the box.

[0011] In some embodiments, the gas interface includes an air inlet and an air outlet, and the air inlet and the air outlet are respectively located at two ends of a diagonal line of a wall surface of the box body.

[0012] In some embodiments, the pressure gauge includes a digital pressure gauge and a pointer pressure gauge, and the digital pressure gauge and the pointer pressure gauge are distributed on the top wall of the box at intervals.

[0013] In some embodiments, the environmental isolation box further includes a lock connecting the box door and the box body, and a plurality of the locks are spaced apart and distributed along the edge of the box door.

[0014] In some embodiments, the upper edge of the box door is hinged on the opening of the box body; the environmental isolation box also includes a support rod connecting the box door and the box body, and the support rod is used to support the box door in an open state.

[0015] In some embodiments, the environmental isolation box further includes a glove opening disposed on the box door, and the glove opening is used for an operator to reach into the interior of the box to perform operations.

[0016] In some embodiments, the environmental isolation box further comprises a baffle disposed on the glove port, wherein the baffle is used to seal the glove port.

[0017] In some embodiments, the environmental isolation box further includes a working platform disposed inside the box, and the working platform is used to place working equipment.

[0018] A second aspect of the present application provides an environmental isolation device, using the above-mentioned environmental isolation box, the environmental isolation device comprising:

[0019] A main frame, provided with a receiving space for installing the environmental isolation box;

[0020] A display controller, mounted on the main frame and used to monitor and control the pressure value inside the box;

[0021] An exhaust device is installed on the main frame, connected to the gas interface of the environmental isolation box, and extracts gas from the inside of the box;

[0022] The gas storage cylinder stores inert gas, is connected to the gas interface of the environmental isolation box, and supplies gas to the interior of the box.

[0023] The third aspect of the present application provides a simulation test device, which adopts the above-mentioned environmental isolation device, and the simulation test device comprises:

[0024] A raw material bottle is arranged inside the box body of the environmental isolation box and stores reaction raw materials;

[0025] The delivery pump is arranged inside the box body of the environmental isolation box and is used to deliver the reaction raw materials from the raw material bottle to the outside of the box body.

[0026] Compared with the prior art, the beneficial effects of this application are:

[0027] The environmental isolation box of the present application is used to evacuate air from the inside of the box through a gas interface and then inject an inert gas. The pressure value inside the box is obtained by a pressure gauge and the amount of inert gas injected is controlled. The devices and equipment placed in the box are powered through a power interface to form a slightly positive pressure, water-free, oxygen-free environment inside the box. The delivery pump and the reaction materials are placed inside the box to work in a slightly positive pressure, water-free, oxygen-free environment, thereby solving the problem of water vapor and oxygen mixed in when the delivery pump delivers the reaction materials, achieving the effect of delivering the reaction materials under water-free and oxygen-free conditions and improving the accuracy of the simulation test data.

[0028] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0030] Figure 1 This is a structural diagram of the environmental isolation box according to a specific implementation method of the present application.

[0031] Figure 2 This is a structural diagram of the environmental isolation box after the left wall of the specific implementation mode of the present application is removed.

[0032] Figure 3 This is a structural diagram of an environmental isolation device according to a specific implementation method of the present application.

[0033] Explanation of the accompanying drawings: environmental isolation box 1, box body 11, box door 12, gas interface 13, air inlet 131, air outlet 132, power interface 14, pressure gauge 15, digital pressure gauge 151, pointer pressure gauge 152, lock 16, support rod 17, glove port 181, baffle 182, working platform 19, main frame 2, display controller 3, exhaust equipment 4. DETAILED DESCRIPTION

[0034] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0035] like Figure 1 , 2As shown, an environmental isolation box includes:

[0036] The box body 11 has a cavity inside and an opening on its front wall;

[0037] A box door 12 is arranged on the opening of the box body 11;

[0038] A gas interface 13, used for supplying gas to the interior of the box 11 and extracting gas from the interior of the box 11;

[0039] A power interface 14, used to supply power to the interior of the box 11;

[0040] The pressure gauge 15 is used to obtain the pressure value inside the box 11 .

[0041] In the present application, the box door 12 can close the opening on the box body 11, so that the interior of the box body 11 forms a closed storage space. The gas interface 13 is connected to the external exhaust equipment and gas supply equipment, and after the water vapor and oxygen in the storage space are extracted, an inert gas is injected into the storage space; at the same time, the pressure value of the storage space is obtained using the pressure gauge 15 to control the injection amount of the inert gas; and then a slightly positive pressure, anhydrous, and oxygen-free environment is formed in the storage space. The power interface 14 can supply power to the devices and equipment placed in the box body 11. The delivery pump and the reaction material are placed in the storage space to work. Even if the breathing action of the delivery pump still exists, the inert gas is mixed with the reaction material, and it will not affect the reaction process of the reaction material, thereby solving the problem of water vapor and oxygen mixed in the reaction material when the delivery pump delivers the reaction material, achieving the effect of delivering the reaction material under anhydrous and oxygen-free conditions, and improving the accuracy of the simulation test data.

[0042] In addition, the box door 12 is opened and closed from the front wall of the box body 11, which is convenient for taking and putting the reaction materials into the box body 11. The pressure gauge 15 is used to control the pressure of the inert gas inside the box body 11 to be in a slightly positive pressure state, so that the inert gas fills the inside of the box body 11 and prevents air from entering the inside of the box body 11 again; at the same time, it can also reduce the leakage of inert gas from the inside of the box body 11 to the outside, reduce the use of inert gas, and save the cost of using the environmental isolation box.

[0043] Specifically, the gas interface 13 includes an air inlet 131 and an air outlet 132, and the air inlet 131 and the air outlet 132 are respectively located at the two ends of the diagonal of the wall surface of the box body 11. The diagonal arrangement of the air inlet 131 and the air outlet 132 can allow the fluid to traverse the interior of the box body 11 more fully, thereby fully extracting the water vapor and oxygen in the accommodation space, and evenly distributing the inert gas in the accommodation space.

[0044] Specifically, the pressure gauge 15 includes a digital pressure gauge 151 and a pointer pressure gauge 152, which are spaced apart on the top wall of the box 11. Both the digital pressure gauge 151 and the pointer pressure gauge 152 can display the pressure value inside the box 11 in real time, forming a digital and mechanical dual air pressure detection, and ensuring the accuracy of the air pressure through a redundant design, so that the operator can adjust the injection amount of the inert gas according to the pressure value in time, avoiding the pressure inside the box 11 from being too low or too high, thereby ensuring the micro-positive pressure environment inside the box 11 and the safety of the use of the environmental isolation box.

[0045] In some embodiments, the box body 11 is made of acrylic material, transparent in color, and 6 mm thick. A sealing ring is used to seal the box body 11 and the box door 12 to ensure excellent sealing inside the box body 11. Since the environmental isolation box is made of transparent acrylic, the internal process of the box body 11 can be clearly observed from any angle. Furthermore, the air inlet 131 and the air outlet 132 are both quick-plug interfaces, located on the left side wall of the box body 11. The air inlet 131 is connected to the external gas supply equipment, and the air outlet 132 is connected to the external air extraction equipment. In addition, the power interface 14 is located on the left side wall of the box body 11. One end of the power interface 14 is connected to the multi-hole power socket configured inside the box body 11, and the other end is connected to the external power cord. Both the gas interface 13 and the power interface 14 use high-quality sealing joints to ensure the airtight performance of the box body 11. Finally, the digital pressure gauge 151 can display the pressure value inside the box 11 in real time, and also has the output function of 4-20mA analog signal, which can be connected to an external controller or alarm device to realize automatic pressure control and abnormal pressure alarm inside the box 11.

[0046] Specifically, the environmental isolation box further includes locks 16 connecting the box door 12 and the box body 11 , and a plurality of locks 16 are distributed at intervals along the edge of the box door 12 .

[0047] Specifically, the upper edge of the box door 12 is hinged on the opening of the box body 11; the environmental isolation box also includes a support rod 17 connecting the box door 12 and the box body 11, and the support rod 17 is used to support the box door 12 in the open state. The box door 12 closes the opening of the box body 11 in the form of a long-side flip cover, which can conveniently take and put reaction materials into the box body 11, or maintain the devices and equipment inside the box body 11. Furthermore, when the box door 12 is flipped upward and opened, the support rod 17 can support the box door 12 to keep the box door 12 open.

[0048] Specifically, the environmental isolation box further includes a glove opening 181 disposed on the box door 12 , and the glove opening 181 is used for an operator to reach into the interior of the box body 11 to perform operations.

[0049] Furthermore, the environmental isolation box further includes a baffle 182 disposed on the glove port 181 , and the baffle 182 is used to seal the glove port 181 .

[0050] Specifically, the environmental isolation box further includes a working platform 19 disposed inside the box body 11 , and the working platform 19 is used to place working equipment.

[0051] In some embodiments, the lock buckle 16 is a stainless steel lock buckle, which is spaced along the left edge, the lower edge, and the right edge of the box door 12 to compress and seal the box door 12 and the box body 11. The support rod 17 is a hydraulic rod, which is respectively located on the left and right sides of the box door 12. There is a pair of glove openings 181, which are arranged side by side on the box door 12. A soft sleeve is provided on the glove opening 181. A sealing ring is used to seal between the glove opening 181 and the baffle 182 to prevent air from entering the interior of the box body 11 and reduce the leakage of inert gas. When it is necessary to operate inside the box body 11, the operator can open the baffle 182, use corrosion-resistant latex gloves, and reach into the interior of the box body 11 from the glove opening 181 to operate.

[0052] like Figure 3 As shown, an environmental isolation device adopts the above-mentioned environmental isolation box 1, specifically comprising:

[0053] The main frame 2 is provided with a receiving space for installing the environmental isolation box 1;

[0054] A display controller 3 is installed on the main frame 2 and is used to monitor and control the pressure value of the environmental isolation box 1;

[0055] The exhaust device 4 is installed on the main frame 2, connected to the gas interface 13 of the environmental isolation box 1, and extracts gas from the inside of the box body 11;

[0056] The gas cylinder stores inert gas, is connected to the gas interface 13 of the environmental isolation box 1 , and supplies gas to the interior of the box body 11 .

[0057] In some embodiments, the main frame 2 is divided into three layers, the lighter and smaller display controller 3 is located in the upper layer, the environmental isolation box 1 is located in the middle layer, and the heavier and larger exhaust equipment 4 is located in the lower layer. The exhaust equipment 4 is an exhaust air compressor. The gas storage bottle (not shown in the figure) is a nitrogen bottle, which is externally placed on the main frame 2, and the inert gas is nitrogen. The exhaust air compressor pipeline is connected to the air outlet 132 of the environmental isolation box 1. The gas storage bottle pipeline is connected to the air inlet 131 of the environmental isolation box 1. The display controller 3 obtains the pressure value of the environmental isolation box 1 through the digital pressure gauge 151, and sends corresponding control signals, including but not limited to: starting and stopping the exhaust air compressor, opening and closing the gas storage bottle, uploading pressure data and pressure warning.

[0058] When working automatically, the air inlet 131 is first closed, and the exhaust air compressor draws air inside the environmental isolation box 1 through the air outlet 132; after the negative pressure inside the box 11 reaches a threshold, the air inlet 131 is opened, and the gas cylinder stably injects nitrogen into the interior of the box 11 through the air inlet 131, and discharges it through the air outlet 132; after a slightly positive pressure state is formed inside the box 11, the air inlet 131 and the air outlet 132 are closed; after the pressure inside the box 11 drops, the air inlet 131 is opened, and the gas cylinder replenishes nitrogen into the interior of the box 11 again.

[0059] A simulation test device (not shown in the figure), using the above-mentioned environmental isolation device, specifically includes:

[0060] A raw material bottle is arranged inside the box body of the environmental isolation box and stores reaction raw materials;

[0061] The delivery pump is arranged inside the box body of the environmental isolation box and is used to deliver the reaction raw materials from the raw material bottle to the outside of the box body.

[0062] In the present application, after using the environmental isolation device, a slightly positive pressure, water-free, and oxygen-free working environment can be provided for the delivery pump and the raw material bottle, thereby preventing water vapor and oxygen from the air from mixing into the reaction raw materials during the delivery process and affecting the reaction process of the simulation experiment, thereby achieving the effect of delivering reaction materials under water-free and oxygen-free conditions and improving the accuracy of the simulation experiment data.

[0063] In some embodiments, the delivery pump is a laboratory syringe pump with an accuracy error of <±0.5%, and can independently control the operation of 1 to 8 channels. The delivery pump quantitatively extracts the reaction material from the raw material bottle and pushes it to the reactor.

[0064] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An environmental isolation box, characterized in that: include: The box body (11) has a cavity inside and an opening on its front wall; A box door (12) is arranged on the opening of the box body (11); A gas interface (13) for supplying gas to the interior of the box (11) and extracting gas from the interior of the box (11); A power interface (14) for supplying power to the interior of the box (11); A pressure gauge (15) is used to obtain the pressure value inside the box (11).

2. The environmental isolation box according to claim 1, characterized in that: The gas interface (13) comprises an air inlet (131) and an air outlet (132), and the air inlet (131) and the air outlet (132) are respectively located at two ends of a diagonal line of a wall surface of the box body (11).

3. The environmental isolation box according to claim 1, characterized in that: The pressure gauge (15) comprises a digital pressure gauge (151) and a pointer pressure gauge (152), and the digital pressure gauge (151) and the pointer pressure gauge (152) are distributed at intervals on the top wall of the box body (11).

4. The environmental isolation box according to claim 1, characterized in that: The environmental isolation box also includes a lock (16) connecting the box door (12) and the box body (11), and a plurality of the locks (16) are distributed at intervals along the edge of the box door (12).

5. The environmental isolation box according to claim 1, characterized in that: The upper edge of the box door (12) is hinged on the opening of the box body (11); the environmental isolation box also includes a support rod (17) connecting the box door (12) and the box body (11), and the support rod (17) is used to support the box door (12) in an open state.

6. The environmental isolation box according to claim 1, characterized in that: The environmental isolation box further comprises a glove opening (181) arranged on the box door (12), wherein the glove opening (181) is used for an operator to reach into the interior of the box body (11) to perform operations.

7. The environmental isolation box according to claim 6, characterized in that: The environmental isolation box further comprises a baffle (182) arranged on the glove opening (181), and the baffle (182) is used to seal the glove opening (181).

8. The environmental isolation box according to claim 1, characterized in that: The environmental isolation box also includes a working platform (19) arranged inside the box body (11), and the working platform (19) is used to place working equipment.

9. An environmental isolation device, characterized in that: According to any one of claims 1 to 8, the environmental isolation box (1) comprises: A main frame (2) is provided with a receiving space for installing the environmental isolation box (1); A display controller (3) installed on the main frame (2) and used to monitor and control the pressure value inside the box (11); An air extraction device (4) is installed on the main frame (2), connected to the gas interface (13) of the environmental isolation box (1), and extracts air from the inside of the box (11); The gas storage cylinder stores inert gas, is connected to the gas interface (13) of the environmental isolation box (1), and supplies gas to the interior of the box body (11).

10. A simulation test device, characterized in that: Using the environmental isolation device according to claim 9, the simulation test device comprises: A raw material bottle is arranged inside the box body of the environmental isolation box and stores reaction raw materials; The delivery pump is arranged inside the box body of the environmental isolation box and is used to deliver the reaction raw materials from the raw material bottle to the outside of the box body.

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