Foaming agent gas evolution measuring device

Abstract

The utility model belongs to the technical field of chemical foaming agent gas evolution measurement especially relates to foaming agent gas evolution determination device, including first container, second container, third container and oil bath, first container is suspended in the inner chamber of oil bath through the suspension support, the inner chamber of first container is filled with chemical foaming agent, the inner chamber of second container is filled with water. First chemical foaming agent is put into first container, and oil bath is heated, when heating temperature reaches chemical foaming agent decomposition temperature, the inner chamber of first container produces gas, and the gas is sent to second container through first gas pipe, then the water of second container is extruded into third container through water pipe under the pressure of aforementioned gas, finally, the water in third container is poured into the graduated measuring cup, and the gas evolution of the chemical foaming agent can be obtained, and the accurate determination of the gas evolution of the chemical foaming agent is realized, and the structure of the application is simple, the testing step is simple and easy to manufacture.

Description

Technical Field

[0001] This utility model belongs to the technical field of measuring the gas emission of chemical foaming agents, and particularly relates to a device for measuring the gas emission of foaming agents. Background Technology

[0002] Chemical foaming agents are compounds that release gas upon heating and decompose, forming fine pores in foamed materials. The gas evolution rate of chemical foaming agents directly affects the density and porosity of foamed materials and is one of the important indicators for evaluating their performance. Currently, there are no dedicated instruments on the market for measuring the gas evolution rate of chemical foaming agents; therefore, there is an urgent need for such a device. Utility Model Content

[0003] The purpose of this invention is to provide a device for measuring the gas emission of foaming agents, aiming to solve the technical problems in the prior art.

[0004] To achieve the above objectives, the foaming agent gas generation measuring device provided in this embodiment includes a first container, a second container, a third container, and an oil bath. A suspension bracket is provided on the side of the oil bath. The first container is suspended in the inner cavity of the oil bath by the suspension bracket. The inner cavity of the first container is filled with a chemical foaming agent. The inner cavity of the second container is filled with water. A first gas pipe is provided at the gas outlet of the first container, and the other end of the first gas pipe is connected to the second container. A water pipe is provided at the water outlet of the second container, and two ends of the water pipe are connected to the third container. A second gas pipe is provided at the gas outlet of the third container, and the other end of the second gas pipe is connected to the atmosphere.

[0005] Optionally, the first air tube includes a first L-shaped glass tube, a first latex tube, and a second L-shaped glass tube. The air inlet of the first L-shaped glass tube is located inside the first container and is higher than the liquid level of the chemical foaming agent, while the air outlet is exposed outside the first container and connected to the input end of the first latex tube. The air inlet of the second L-shaped glass tube is exposed outside the second container and is connected to the output end of the first latex tube, while the air outlet is located inside the second container and is higher than the liquid level of the water.

[0006] Optionally, the water pipe includes a third L-shaped glass tube, a second latex tube, and a fourth L-shaped glass tube. The inlet end of the third L-shaped glass tube is located in the inner cavity of the second container and inserted into the water, while the outlet end is exposed outside the second container and connected to the input end of the second latex tube. The inlet end of the fourth L-shaped glass tube is exposed outside the third container and connected to the output end of the second latex tube, while the outlet end is located in the inner cavity of the third container.

[0007] Optionally, the second air tube is a fifth L-shaped glass tube, with the air inlet of the fifth L-shaped glass tube located inside the third container and the air outlet exposed outside the third container.

[0008] Optionally, it further includes a first rubber stopper sealing the top opening of the first container, a second rubber stopper sealing the top opening of the second container, and a third rubber stopper sealing the top opening of the third container. The first L-shaped glass tube is fixed to the top of the first container by the first rubber stopper, the second L-shaped glass tube and the third L-shaped glass tube are respectively fixed to the top of the second container by the second rubber stopper, and the fourth L-shaped glass tube and the fifth L-shaped glass tube are respectively fixed to the top of the third container by the third rubber stopper.

[0009] Optionally, it also includes a base, on which a heating component corresponding to the oil bath, a first placement platform corresponding to the second container, and a second placement platform corresponding to the third container are provided. The heating end of the heating component can act on the bottom of the oil bath and heat the oil in its inner cavity.

[0010] Optionally, the inner cavity of the oil bath is filled with high-temperature silicone oil, and the bottom of the first container is immersed below the surface of the high-temperature silicone oil.

[0011] Optionally, the first container, the second container, and the third container are all conical flasks.

[0012] Optionally, the suspension bracket includes an upright and a crossbar. The bottom end of the upright contacts the bearing surface and the top end is connected to the crossbar. The free end of the crossbar is provided with a claw that acts on the first container.

[0013] The above-mentioned one or more technical solutions in the foaming agent gas emission measuring device provided in this utility model embodiment have at least one of the following technical effects: First, the chemical foaming agent is placed in the first container and the oil bath is heated. When the heating temperature reaches the decomposition temperature of the chemical foaming agent, gas is generated in the inner cavity of the first container. The gas is sent to the second container through the first gas tube. Then, the water in the second container is squeezed into the third container through the water tube by the pressure of the aforementioned gas. Finally, the water in the third container is poured into a graduated measuring cup to obtain the gas emission of the chemical foaming agent, thereby realizing the accurate measurement of the gas emission of the chemical foaming agent. The structure of this application is simple, the testing steps are simple and easy to manufacture, and it is especially suitable for application scenarios in small laboratories. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the foaming agent gas emission measuring device provided in an embodiment of the present invention.

[0016] The following are the labeling elements in the figure:

[0017] 1—First container; 11—Chemical foaming agent; 12—First rubber stopper

[0018] 2—Second container; 21—Water; 22—Second rubber stopper

[0019] 3—Third container; 31—Third rubber stopper; 4—Oil bath.

[0020] 41—High-temperature silicone oil; 5—First gas tube; 51—First L-shaped glass tube

[0021] 52—First latex tube; 53—Second L-shaped glass tube; 6—Water pipe

[0022] 61—Third L-shaped glass tube; 62—Second latex tube; 63—Fourth L-shaped glass tube

[0023] 7—Second air pipe; 8—Base; 81—Heating component

[0024] 82—First placement platform; 83—Second placement platform; 9—Suspension bracket

[0025] 91—Upright pole; 92—Horizontal bar; 93—Claw. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of this utility model, such as Figure 1As shown, a device for measuring the gas evolution of a foaming agent is provided, including a first container 1, a second container 2, a third container 3, and an oil bath 4. A suspension bracket 9 is provided on the side of the oil bath 4. The first container 1 is suspended in the inner cavity of the oil bath 4 by the suspension bracket 9. The inner cavity of the first container 1 is filled with a chemical foaming agent 11. The inner cavity of the second container 2 is filled with water 21. A first gas pipe 5 is provided at the gas outlet end of the first container 1. The other end of the first gas pipe 5 is connected to the second container 2. A water pipe 6 is provided at the water outlet end of the second container 2. Two sections of the water pipe 6 are connected to the third container 3. A second gas pipe 7 is provided at the gas outlet end of the third container 3. The other end of the second gas pipe 7 is connected to the atmosphere. Specifically, the testing procedure of this device will be described using sodium bicarbonate, an inorganic foaming agent in chemical foaming agent 11, as an example. The testing procedure includes: (S1) pouring high-temperature silicone oil 41, with the liquid level covering the bottom of the first container 1, into the oil bath 4; (S2) adding 6 ml of dioctyl phthalate and 1.0 g of sodium bicarbonate into the first container 1, and suspending it in the inner cavity of the oil bath 4 by the suspension bracket 9 and immersing it below the liquid level of the high-temperature silicone oil 41; (S3) pouring water 21, with the water level covering the bottom of the third L-shaped glass tube 61, into the second container 2. (S4) Start the heating component 81 until the high-temperature silicone oil 41 in the oil bath 4 is heated to 180° (the heating temperature needs to be determined according to the decomposition temperature of the chemical foaming agent 11 being tested). (S5) The gas produced by the decomposition of sodium bicarbonate is input into the second container 2 through the first gas pipe 5. The water 21 in the second container 2 is squeezed into the third container 3 through the water pipe 6 under the action of gas pressure, and the gas is vented by the second gas pipe 7. Finally, the water 21 in the third container 3 is poured into a graduated measuring cup for reading, thereby completing the gas generation test.

[0031] In one embodiment of this utility model, such as Figure 1 As shown, the first air tube 5 includes a first L-shaped glass tube 51, a first latex tube 52, and a second L-shaped glass tube 53. The air inlet of the first L-shaped glass tube 51 is located inside the first container 1 and is higher than the liquid level of the chemical foaming agent 11; the air outlet is exposed outside the first container 1 and connected to the input end of the first latex tube 52. The air inlet of the second L-shaped glass tube 53 is exposed outside the second container 2 and is connected to the output end of the first latex tube 52; the air outlet is located inside the second container 2 and is higher than the liquid level of the water 21. The structure is simple and easy to assemble.

[0032] In one embodiment of this utility model, such as Figure 1As shown, the water pipe 6 includes a third L-shaped glass tube 61, a second latex tube 62, and a fourth L-shaped glass tube 63. The inlet end 21 of the third L-shaped glass tube 61 is located inside the second container 2 and inserted into the water 21, while the outlet end 21 is exposed outside the second container 2 and connected to the inlet end of the second latex tube 62. The inlet end 21 of the fourth L-shaped glass tube 63 is exposed outside the third container 3 and connected to the outlet end of the second latex tube 62, while the outlet end 21 is located inside the third container 3. The structure is simple and easy to assemble.

[0033] In one embodiment of this utility model, such as Figure 1 As shown, the second air tube 7 is a fifth L-shaped glass tube, with the air inlet located inside the third container 3 and the air outlet exposed outside the third container 3. The structure is simple and easy to assemble.

[0034] In one embodiment of this utility model, such as Figure 1 As shown, it also includes a first rubber stopper 12 sealing the top opening of the first container 1, a second rubber stopper 22 sealing the top opening of the second container 2, and a third rubber stopper 31 sealing the top opening of the third container 3. The first L-shaped glass tube 51 is fixed to the top of the first container 1 by the first rubber stopper 12, the second L-shaped glass tube 53 and the third L-shaped glass tube 61 are respectively fixed to the top of the second container 2 by the second rubber stopper 22, and the fourth L-shaped glass tube 63 and the fifth L-shaped glass tube are respectively fixed to the top of the third container 3 by the third rubber stopper 31.

[0035] In one embodiment of this utility model, such as Figure 1 As shown, it also includes a base 8, on which a heating component 81 corresponding to the oil bath 4, a first placement platform 82 corresponding to the second container 2, and a second placement platform 83 corresponding to the third container 3 are provided. The heating end of the heating component 81 can act on the bottom of the oil bath 4 and heat the oil in its inner cavity.

[0036] In one embodiment of this utility model, such as Figure 1 As shown, the inner cavity of the oil bath 4 is filled with high-temperature silicone oil 41, and the bottom of the first container 1 is immersed below the liquid surface of the high-temperature silicone oil 41.

[0037] In one embodiment of this utility model, such as Figure 1 As shown, the first container 1, the second container 2, and the third container 3 are all conical flasks.

[0038] In one embodiment of this utility model, such as Figure 1As shown, the suspension bracket 9 includes a vertical rod 91 and a horizontal rod 92. The bottom end of the vertical rod 91 contacts the bearing surface, and the top end is connected to the horizontal rod 92. The free end of the horizontal rod 92 is provided with a claw 93 that acts on the first container 1. Specifically, the bottle mouth of the first container 1 is provided with an annular flange, and the free end of the horizontal rod 92 is provided with a pair of claws 93. A gap is provided between the pair of claws 93 for the bottle mouth of the first container 1 to pass through, and it can provide vertical support force for the annular flange.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for measuring the gas evolution of a foaming agent, characterized in that: The device includes a first container, a second container, a third container, and an oil bath. A suspension bracket is provided on the side of the oil bath. The first container is suspended from the inner cavity of the oil bath by the suspension bracket. The inner cavity of the first container is filled with a chemical foaming agent. The inner cavity of the second container is filled with water. The first container has a first air pipe at its air outlet, and the other end of the first air pipe is connected to the second container. The second container has a water pipe at its water outlet, and one end of the water pipe is connected to the third container. The third container has a second air pipe at its air outlet, and the other end of the second air pipe is connected to the atmosphere.

2. The foaming agent gas generation measuring device according to claim 1, characterized in that: The first air tube includes a first L-shaped glass tube, a first latex tube, and a second L-shaped glass tube. The air inlet of the first L-shaped glass tube is located inside the first container and is higher than the liquid level of the chemical foaming agent. The air outlet is exposed outside the first container and is connected to the input end of the first latex tube. The air inlet of the second L-shaped glass tube is exposed outside the second container and is connected to the output end of the first latex tube. The air outlet is located inside the second container and is higher than the liquid level of the water.

3. The foaming agent gas emission measuring device according to claim 2, characterized in that: The water pipe includes a third L-shaped glass tube, a second latex tube, and a fourth L-shaped glass tube. The inlet end of the third L-shaped glass tube is located in the inner cavity of the second container and is inserted into the water, while the outlet end is exposed outside the second container and connected to the inlet end of the second latex tube. The inlet end of the fourth L-shaped glass tube is exposed outside the third container and connected to the outlet end of the second latex tube, while the outlet end is located in the inner cavity of the third container.

4. The foaming agent gas emission measuring device according to claim 3, characterized in that: The second air tube is a fifth L-shaped glass tube, with the air inlet of the fifth L-shaped glass tube located inside the third container and the air outlet exposed outside the third container.

5. The foaming agent gas emission measuring device according to claim 4, characterized in that: It also includes a first rubber stopper sealing the top opening of the first container, a second rubber stopper sealing the top opening of the second container, and a third rubber stopper sealing the top opening of the third container. The first L-shaped glass tube is fixed to the top of the first container by the first rubber stopper, the second L-shaped glass tube and the third L-shaped glass tube are respectively fixed to the top of the second container by the second rubber stopper, and the fourth L-shaped glass tube and the fifth L-shaped glass tube are respectively fixed to the top of the third container by the third rubber stopper.

6. The foaming agent gas generation measuring device according to claim 1, characterized in that: It also includes a base, on which a heating component corresponding to the oil bath pot, a first placement platform corresponding to the second container, and a second placement platform corresponding to the third container are provided. The heating end of the heating component can act on the bottom of the oil bath pot and heat the oil in its inner cavity.

7. The foaming agent gas emission measuring device according to claim 1, characterized in that: The inner cavity of the oil bath is filled with high-temperature silicone oil, and the bottom of the first container is immersed below the surface of the high-temperature silicone oil.

8. The foaming agent gas generation measuring device according to claim 1, characterized in that: The first container, the second container, and the third container are all conical flasks.

9. The apparatus of claim 1, wherein: The suspension bracket includes an upright and a crossbar. The bottom end of the upright is in contact with the bearing surface and the top end is connected to the crossbar. The free end of the crossbar is provided with a claw that acts on the first container.

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