Oxygen bomb calorimeter

Abstract

The utility model relates to the technical field of calorific value detection, and particularly discloses an oxygen bomb calorimeter comprising a base which is divided into a first quadrant area, a second quadrant area, a third quadrant area and a fourth quadrant area by a rectangular coordinate system perpendicular to an edge; the liquid storage tank is arranged on the base, and more than 50% of the projection area of the projection of the liquid storage tank on the base is located in a first quadrant region; the measuring barrel is arranged on the base, more than 50% of the projection area of the measuring barrel on the base is located in a third quadrant area, and the projection area of the liquid storage tank and the measuring barrel projected to other quadrant areas respectively accounts for not more than 50% of the area of the quadrant area. The oxygen bomb calorimeter adopts an integrated design, does not need to be externally connected with a water pipe or a control circuit during use, and is convenient to use and carry. And the space utilization of the instrument is more compact, so that the occupied area of the instrument in a laboratory is smaller. The main parts of the projection of the measuring barrel and the liquid storage tank are arranged in the left front area and the right rear area respectively, the use habits of most people are better met, and the layout is more reasonable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat quantity detection, and more particularly to an oxygen bomb calorimeter. BACKGROUND

[0002] The oxygen bomb calorimeter is an instrument for measuring the heat of combustion of a substance that can be completely burned in high-pressure oxygen. It mainly includes full-automatic oxygen bomb calorimeter, oxygen bomb calorimeter and oxygen bomb calorimeter, etc. Its characteristics are that oxygen is used as a combustion-supporting agent, and the heat of combustion of a substance is measured when it is completely burned in high-pressure oxygen to evaluate the heat of combustion of the substance.

[0003] The main body of the common oxygen bomb calorimeter includes a liquid storage tank and a test barrel, and the two are large-volume components of the internal structure of the oxygen bomb calorimeter. The test barrel includes an inner barrel and an outer barrel that are nested, and uses water as a medium. The inner barrel and the outer barrel are the main parts of the measurement unit of the oxygen bomb calorimeter, and a liquid, usually water, is provided therein, and an oxygen bomb (a high-temperature, high-pressure, and high-corrosion sealed container of the oxygen bomb calorimeter) is immersed therein, and the oxygen bomb combustion heat is obtained by measuring the change in water temperature. The liquid storage tank is the main component of the pre-temperature control unit of the liquid in the inner barrel or the entire calorimeter.

[0004] The pre-temperature control unit of the oxygen bomb calorimeter on the market mostly uses compressor refrigeration technology to control temperature. Since the compressor vibrates greatly when working, it is not suitable to be placed in the measurement unit of the oxygen bomb calorimeter. Therefore, the measurement unit and the pre-temperature control unit are mostly in a split structure and are respectively arranged in independent box bodies. The two units are connected by pipelines when in use.

[0005] With the application and improvement of semiconductor refrigeration technology, refrigeration temperature control has no obvious vibration and other interference, so that the pre-temperature control unit can be placed together with the measurement unit, i.e. it is possible to place the test barrel and the water storage tank in the same box body in an integrated design.

[0006] However, since the test barrel and the water storage tank occupy a large volume, how to arrange them in the same outer box body is a technical problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0007] Therefore, the purpose of the present application is to provide an oxygen bomb calorimeter which can effectively solve the above problems.

[0008] In order to achieve the above purpose, the present application provides the following technical solutions:

[0009] An oxygen bomb calorimeter comprises:

[0010] A base, the base is rectangular, the base is divided into four quadrant regions in a perpendicular-to-edge right-angle coordinate system, and the four quadrant regions are a first quadrant region, a second quadrant region, a third quadrant region and a fourth quadrant region in sequence;

[0011] The liquid storage tank is arranged on the base, and more than 50% of the projected area of the liquid storage tank in the projection of the base is located in the first quadrant, and the projected area of the projection to other quadrants accounts for no more than 50% of the area of the quadrant;

[0012] The measuring barrel is arranged on the base, and more than 50% of the projected area of the measuring barrel in the projection of the base is located in the third quadrant, and the projected area of the projection to other quadrants accounts for no more than 50% of the area of the quadrant.

[0013] Optionally, in the oxygen bomb calorimeter, the first quadrant and the second quadrant are distributed along the length direction of the base, and the third quadrant and the fourth quadrant are distributed along the width direction of the base;

[0014] The projection of the measuring barrel on the base is located in the first quadrant, or part of the measuring barrel is located in the first quadrant and part of the measuring barrel is located in the fourth quadrant; the projection of the liquid storage tank on the base is located in the third quadrant, or part of the liquid storage tank is located in the third quadrant and part of the liquid storage tank is located in the second quadrant.

[0015] Optionally, in the oxygen bomb calorimeter, at least 80% of the projected area of the measuring barrel in the projection of the base is located in the first quadrant;

[0016] At least 80% of the projected area of the liquid storage tank in the projection of the base is located in the third quadrant.

[0017] Optionally, in the oxygen bomb calorimeter, the interface for communication between the measuring barrel and the liquid storage tank is arranged on the side of the measuring barrel facing the fourth quadrant;

[0018] The interface for communication between the liquid storage tank and the measuring barrel is arranged on the side of the liquid storage tank facing the second quadrant.

[0019] Optionally, in the oxygen bomb calorimeter, the fourth quadrant is provided with a touch screen.

[0020] Optionally, in the oxygen bomb calorimeter, further comprising a measuring barrel cover arranged on the measuring barrel and a liquid storage tank cover arranged on the liquid storage tank, and the projection of the liquid storage tank cover on the base is located at least in the first quadrant;

[0021] The projection of the measuring barrel cover on the base is located at least in the third quadrant.

[0022] Optionally, in the oxygen bomb calorimeter, further comprising a first lifting driving device for driving the measuring barrel cover to lift, and the first lifting driving device is arranged in the second quadrant.

[0023] and / or,

[0024] The second lifting driving device is arranged in the fourth quadrant area.

[0025] Optionally, in the oxygen bomb calorimeter, the measuring barrel comprises an outer barrel and an inner barrel which are sleeved, and the oxygen bomb calorimeter comprises a measuring liquid path, the measuring liquid path comprises:

[0026] The liquid in the measuring barrel is pumped to the outer barrel by the first pump when the first valve is connected to the outer barrel.

[0027] The liquid in the measuring barrel is pumped to the outer barrel by the first pump when the first valve is connected to the outer barrel.

[0028] The liquid in the measuring barrel is pumped to the outer barrel by the first pump when the first valve is connected to the outer barrel.

[0029] The liquid in the measuring barrel is pumped to the outer barrel by the first pump when the first valve is connected to the outer barrel.

[0030] Optionally, in the oxygen bomb calorimeter, the inner barrel liquid inlet liquid path further comprises a third valve and a measuring cup, the third valve and the measuring cup are sequentially connected between the first pump and the second valve.

[0031] The liquid in the measuring barrel is pumped to the outer barrel by the first pump when the first valve is connected to the outer barrel.

[0032] Optionally, in the oxygen bomb calorimeter, a liquid level detection device is arranged in the inner barrel, the liquid level detection device is used to detect the liquid level in the inner barrel, and the second valve is used to disconnect the first pump and the inner barrel when the liquid level detection device detects that the liquid level in the inner barrel reaches a preset liquid level.

[0033] The oxygen bomb calorimeter provided in the application has the liquid storage tank and the measuring barrel arranged on the same base, and the base is divided into four quadrants, i.e., a first quadrant, a second quadrant, a third quadrant and a fourth quadrant. Since the liquid storage tank and the measuring barrel are two components with relatively large volumes in the oxygen bomb calorimeter, and the volumes of the two components are related to the volume of the inner barrel of the measuring barrel, and the volumes of the two components are close to each other, in the application, the main parts of the liquid storage tank and the measuring barrel are arranged in the first quadrant and the third quadrant respectively, and the projection of the measuring barrel and the liquid storage tank on the base is calculated, specifically, more than 50% of the projection area of the measuring barrel on the base is located in the first quadrant, more than 50% of the projection area of the liquid storage tank on the base is located in the third quadrant, and the projection area of the liquid storage tank or the measuring barrel on the other quadrants accounts for no more than 50% of the area of the quadrant. The oxygen bomb calorimeter provided in the application has the liquid storage tank and the measuring barrel arranged on the same base, so that the oxygen bomb calorimeter can be integrated into an integrated structure, and thus external liquid pipeline is not needed. In addition, the liquid storage tank and the measuring barrel are diagonally distributed, and the other components with relatively small volumes can be arranged according to the positions of the liquid storage tank and the measuring barrel, so that the space is reasonably utilized and the space utilization is improved. In addition, during use, one side of the third quadrant and the fourth quadrant can be placed forward, i.e., one side of the third quadrant and the fourth quadrant is close to the operator, so that the measuring barrel is close to the operator, and thus the operation habit of most users is met. In addition, the liquid storage tank is placed on the rear side, which is beneficial to the connection of the pipeline between the liquid storage tank and the measuring barrel, and the second quadrant and the fourth quadrant can also facilitate the arrangement and installation of other components cooperating with the liquid storage tank and the measuring barrel.

[0034] In summary, the oxygen bomb calorimeter provided in the application has an integrated design, and during use, no external water pipe or control line is needed, and the use and carrying are convenient. The integrated design makes the space utilization of the instrument more compact, so that the instrument occupies a smaller area in the laboratory, and can meet the demand of being placed on a desktop for use. The main parts of the projections of the measuring barrel and the liquid storage tank are arranged in the left front region and the right rear region respectively, which is more in line with the use habit of most people, and the layout is more reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0036] Figure 1 It is a schematic diagram of a split type oxygen bomb calorimeter in the prior art;

[0037] Figure 2 It is a schematic diagram of an integrated oxygen bomb calorimeter in the prior art;

[0038] Figure 3 A layout diagram of an oxygen bomb calorimeter according to an embodiment of the present application;

[0039] Figure 4 A layout diagram of an oxygen bomb calorimeter according to another embodiment of the present application;

[0040] Figure 5 A diagram of a measuring liquid path of an oxygen bomb calorimeter according to an embodiment of the present application.

[0041] Reference signs:

[0042] 01-measuring barrel; 02-liquid storage tank; 03-connection pipe;

[0043] 100-base; 110-first quadrant; 120-second quadrant; 130-third quadrant; 140-fourth quadrant; 200-measuring barrel; 210-inner barrel; 220-outer barrel; 300-liquid storage tank; 400-first pump; 500-refrigerator; 600-second pump; 700-heater; 800-first valve; 900-second valve; 910-drainage pump. DETAILED DESCRIPTION

[0044] Embodiments of the present application disclose an oxygen bomb calorimeter to reduce its volume and meet the requirement of being placed on a desktop for use.

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the scope of protection of the present application.

[0046] Figure 1 A split oxygen bomb calorimeter is shown, which comprises a measuring unit and a temperature control unit, the measuring unit is placed with a measuring barrel 01, and the temperature control unit is placed with a liquid storage tank 02 and a compressor. The measuring unit and the temperature control unit are independently arranged, and are connected by a connection pipe 03 when in use. The two units are controlled and operated respectively, which brings inconvenience to users. Meanwhile, the split design generally occupies a large area of a laboratory.

[0047] Figure 2 An integrated oxygen bomb calorimeter is shown, in which a measuring barrel 01 and a liquid storage tank 02 are placed in two layers. The structure is suitable for a vertical oxygen bomb calorimeter. However, the oxygen bomb calorimeter with the measuring barrel 01 and the liquid storage tank 02 placed in two layers has a too large height, and is limited in use.

[0048] To at least partially solve the above-mentioned defects, the present application provides an oxygen bomb calorimeter, which is described below Figure 3 and Figure 4 The preferred embodiments of the present application are described.

[0049] Please refer to Figure 3 In some embodiments, the oxygen bomb calorimeter provided by the present application comprises a base 100, a liquid storage tank 300 and a measuring barrel 200. The base 100 is used to install the liquid storage tank 300 and the measuring barrel 200. It can be understood that the base 100 can be the bottom plate of the outer box body of the oxygen bomb calorimeter, or a separately arranged support seat that can be placed in the outer box body, and the shape of the base 100 can be a plate or a frame structure, etc., which is not limited here. The liquid storage tank 300 and the measuring barrel 200 are integrated on the base 100 to form an integrated oxygen bomb calorimeter. That is, the liquid storage tank 300 and the measuring barrel 200 in the present application can be arranged in the same machine case of the oxygen bomb calorimeter. The base 100 is rectangular, and the base 100 is divided into a first quadrant area 110, a second quadrant area 120, a third quadrant area 130 and a fourth quadrant area 140 by a vertical straight line (dashed line in the figure) perpendicular to the edge. The vertical straight line perpendicular to the edge means that the X axis and the Y axis of the rectangular coordinate system are perpendicular to the long side and the short side of the base, respectively. As shown in Figure 3 , the base 100 is divided into four parts, i.e. four quadrant areas, by two straight lines perpendicular to each other, which are perpendicular to the long side and the short side of the base. According to the orientation of the bottom plate, the four quadrant areas can be recorded as the first quadrant area 110, the second quadrant area 120, the third quadrant area 130 and the fourth quadrant area 140 in the counterclockwise direction.

[0050] Since the volume of the measuring barrel 200 is limited by the oxygen bomb, the barrel content volume, etc., it cannot be arbitrarily small, and the volume of the liquid storage tank 300 is also limited by the barrel content volume, and cannot be arbitrarily small. The number and volume of other components are relatively flexible, therefore, the layout of the oxygen bomb calorimeter can first determine the position layout of the measuring barrel 200 and the liquid storage tank 300, and then adjust the position layout of other components. According to the volume of the measuring barrel 200 and the liquid storage tank 300, the size of the four quadrant areas is adjusted accordingly. For example, the areas of the four quadrant areas can all be the same, two by two, or all different. The liquid storage tank 300 is arranged on the base 100, and more than 50% of the projection area of the liquid storage tank 300 in the projection of the base 100 is located in the first quadrant area 110, and the projection area projected to other quadrant areas occupies no more than 50% of the area of the quadrant area. The measuring barrel 200 is arranged on the base 100, and more than 50% of the projection area of the measuring barrel 200 in the projection of the base 100 is located in the third quadrant area 130, and the projection area projected to other quadrant areas occupies no more than 50% of the area of the quadrant area. For example, Figure 3As shown, the volumes of the measuring tank 200 and the storage tank 300 are both related to the volume of the inner tank 210 of the measuring tank 200, and therefore their volumes are similar. Two figures with similar shaded areas are used as examples. In this application, the measuring tank 200 and the storage tank 300 are projected onto the base 100 from a top view. The projection layout is such that more than 50% of the projected area of ​​the measuring tank 200 falls in the third region and more than 50% of the projected area of ​​the storage tank falls in the first region, forming a diagonal arrangement between the measuring tank 200 and the storage tank 300. Specifically, the projected area of ​​the measuring container 200 or the liquid storage tank 300 can span two quadrants. For example, a portion of the projection of the measuring container 200 may be located in the second quadrant 120, and the projected area in the second quadrant 120 may occupy no more than 50% of the area of ​​the second quadrant 120. Similarly, a portion of the projection of the liquid storage tank 300 may be located in the fourth quadrant 140, and the projected area in the fourth quadrant 140 may occupy no more than 50% of the area of ​​the fourth quadrant 140. That is, most of the projected area of ​​the measuring container 200 or the liquid storage tank 300 is located in the first quadrant 110 and the third quadrant 130, respectively.

[0051] Using the oxygen bomb calorimeter provided in this application, the liquid storage tank 300 and the measuring barrel 200 are respectively placed on the same base 100, and the base 100 is divided into four quadrants by a rectangular coordinate system, namely the first quadrant 110, the second quadrant 120, the third quadrant 130 and the fourth quadrant 140. Since the liquid storage tank 300 and the measuring container 200 are the two largest components in the oxygen bomb calorimeter, and their volumes are related to the volume of the inner container 210 of the measuring container 200, and their volumes are similar, this application sets the main parts of the liquid storage tank 300 and the measuring container 200 in the first quadrant 110 and the third quadrant 130, respectively. The distribution is calculated based on the projections of the measuring container 200 and the liquid storage tank 300 onto the base 100. Specifically, more than 50% of the projected area of ​​the measuring container 200 onto the base 100 is located in the first quadrant 110, and more than 50% of the projected area of ​​the liquid storage tank 300 onto the base 100 is located in the third quadrant 130. The oxygen bomb calorimeter provided in this application integrates the liquid storage tank 300 and the measuring container 200 into a single structure by placing them on the same base 100, thus eliminating the need for external liquid piping. Furthermore, the liquid storage tank 300 and the measuring container 200 are diagonally distributed, and other smaller components can be arranged accordingly based on their positions, making rational use of space and improving space utilization. In addition, during use, one side of the third and fourth quadrants can be placed forward, meaning that one side of the third and fourth quadrants is closer to the operator, thus placing the measuring container 200 close to the operator, conforming to the operating habits of most users. Moreover, placing the liquid storage tank 300 at the rear facilitates the connection of pipelines with the measuring container 200, and the second and fourth quadrants also allow for convenient layout and installation of other components that cooperate with the liquid storage tank 300 and the measuring container 200.

[0052] In summary, the oxygen bomb calorimeter provided in this application adopts an integrated design, eliminating the need for external water pipes or control wiring, making it convenient to use and transport. The integrated design also allows for more compact space utilization, reducing the instrument's footprint in the laboratory and meeting the requirements for desktop use. The main projections of the measuring container 200 and the storage tank 300 are positioned in the front left and rear right areas respectively, better aligning with the usage habits of most users and resulting in a more rational layout.

[0053] In some embodiments, the first quadrant 110 and the second quadrant 120 are distributed along the length of the base 100, and the third quadrant 130 and the fourth quadrant 140 are distributed along the width of the base 100. Using a rectangular base 100 and arranging the quadrants as described above allows for full utilization of space and better adaptation to conventional laboratory platforms, facilitating placement in the laboratory.

[0054] Furthermore, the projection of the measuring container 200 onto the base 100 is entirely located in the first quadrant 110, or partially in the first quadrant 110 and partially in the fourth quadrant 140; the projection of the storage tank 300 onto the base 100 is entirely located in the third quadrant 130, or partially in the third quadrant 130 and partially in the second quadrant 120. Based on the volumes of the measuring container 200 and the storage tank 300, four quadrants can be correspondingly divided. In one example, please refer to [reference needed]. Figure 4 In one example, the projection of the measuring tank 200 onto the base 100 is entirely located in the first quadrant 110. In another example, the projection of the reservoir 300 onto the base 100 is entirely located in the third quadrant 130. In yet another example, because the measuring tank 200 and the reservoir 300 are relatively large, and it is difficult to install them separately in one quadrant, the projected area of ​​the measuring tank 200 or the reservoir 300 can span two quadrants. Please refer to [reference needed]. Figure 3 Specifically, the projection of the measuring barrel 200 on the base 100 is located in the first quadrant 110 and the fourth quadrant 140, and the projection of the liquid storage tank 300 on the base 100 is located in the third quadrant 130 and the second quadrant 120. That is, the main parts of the measuring barrel 200 and the liquid storage tank 300 are diagonally distributed, and both are arranged lengthwise in the width direction of the base 100. This is more suitable for the layout of the liquid storage tank 300 and the measuring barrel 200 with circular or positive cross-sections, realizing full utilization of space and reserving a larger space for other components.

[0055] In some embodiments, at least 80% of the projected area of ​​the measuring barrel 200 onto the base 100 is located in the first quadrant 110. At least 80% of the projected area of ​​the storage tank 300 onto the base 100 is located in the third quadrant 130. The majority of the measuring barrel 200 and the storage tank 300 are located in their respective first quadrant 110 and third quadrant 130, making the overall oxygen bomb calorimeter structure more compact. In other embodiments, depending on space constraints, at least 60%, 70%, or 90% of the projected area of ​​the measuring barrel 200 onto the base 100 may be located in the first quadrant 110; and at least 60%, 70%, or 90% of the projected area of ​​the storage tank 300 onto the base 100 may be located in the third quadrant 130.

[0056] In some embodiments, the interface connecting the measuring tank 200 and the storage tank 300 is located on the side of the measuring tank 200 facing the fourth quadrant 140; the interface connecting the storage tank 300 and the measuring tank 200 is located on the side of the storage tank 300 facing the second quadrant. That is, the interface on the measuring tank 200 connecting to the storage tank 300 is positioned facing the storage tank 300, and correspondingly, the interface on the storage tank 300 connecting to the measuring tank 200 is positioned facing the measuring tank 200. This allows the measuring tank 200 and the storage tank 300 to be connected via a pipeline, resulting in a relatively short pipeline path and convenient layout.

[0057] In some embodiments, the fourth quadrant 140 is equipped with a touch screen. The touch screen is used to control the oxygen bomb calorimeter; its specific structure and control principle can be found in the corresponding settings on a conventional oxygen bomb calorimeter, and will not be described in detail here. During use, the third quadrant 130 and fourth quadrant 140 of the oxygen bomb calorimeter are positioned forward. During testing, the touch screen is located on the front right side of the oxygen bomb calorimeter, conforming to the operating habits of most users, such as right-handed operation.

[0058] In some embodiments, the oxygen bomb calorimeter further includes a measuring barrel cover on the measuring barrel 200 and a storage tank cover on the storage tank 300. The measuring barrel cover is used to cooperate with the measuring barrel 200 and can cover the top of the measuring barrel 200; the storage tank cover is used to cooperate with the storage tank 300 and can cover the top of the storage tank 300. The specific structure of the measuring barrel cover and the storage tank cover and their cooperation with the corresponding measuring barrel 200 and storage tank 300 can be referred to conventional oxygen bomb calorimeters, and will not be repeated here. The area of ​​the measuring barrel cover can be much larger than that of the measuring barrel 200. The projection of the measuring barrel 200 refers to the projection of the barrel body of the measuring barrel 200 as the boundary, not the projection of the measuring barrel cover. Correspondingly, the area of ​​the storage tank cover can be much larger than that of the storage tank 300. The top view projection of the storage tank 300 is the projection of the barrel body of the storage tank 300 as the boundary, not the projection of the storage tank cover.

[0059] When a measuring barrel lid is provided, the projection of the measuring barrel lid on the base 100 is at least located in the first quadrant 110. If the projection area of ​​the measuring barrel lid on the base 100 is large, it can also extend to at least one of the second quadrant 120, the third quadrant 130 and the fourth quadrant 140.

[0060] When a liquid reservoir cover is provided, the projection of the liquid reservoir cover on the base 100 is at least located in the third quadrant 130. If the projection area of ​​the liquid reservoir cover on the base 100 is large, it may also extend to at least one of the first quadrant 110, the second quadrant 120 and the fourth quadrant 140.

[0061] In some embodiments, the bomb calorimeter further includes a first lifting drive device for driving the measuring barrel lid to rise and fall. The specific structure of the first lifting drive device and its connection relationship with the measuring barrel 200 can be referenced from the settings of a conventional bomb calorimeter. The first lifting drive device is located in the second quadrant region 120 to achieve full utilization of space.

[0062] In some embodiments, the oxygen bomb calorimeter further includes a second lifting drive device for driving the liquid storage tank cover to rise and fall, the second lifting drive device being located in the fourth quadrant region 140. The specific structure of the second lifting drive device and its connection relationship with the liquid storage tank 300 can be referenced from the configuration of a conventional oxygen bomb calorimeter. The second lifting drive device is located in the second quadrant region 120 to achieve full utilization of space.

[0063] In some instances, please refer to Figure 5 The measuring tank 200 includes an outer tank 220 and an inner tank 210 nested together, and the oxygen bomb calorimeter includes a measuring liquid circuit, which includes a storage tank self-circulation loop, an outer tank self-circulation loop, an outer tank inlet liquid circuit, and an inner tank inlet liquid circuit. The storage tank self-circulation loop includes a storage tank 300, a first pump 400, and a cooler 500. The first pump 400 and the cooler 500 are connected between the outlet and inlet of the storage tank 300, and the cooler 500 is used to cool the liquid in the storage tank 300 to below room temperature. Specifically, the liquid storage tank 300, the first pump 400, and the cooler 500 can be connected via pipelines. For example, the first pump 400 and the cooler 500 can be connected sequentially between the outlet and inlet of the liquid storage tank 300. When the first pump 400 is activated, the liquid in the liquid storage tank 300 is discharged through the outlet of the liquid storage tank 300, cooled by the cooler 500, and then flows back into the liquid storage tank 300 through the inlet, realizing the circulation of the liquid in the self-circulating loop of the liquid storage tank to cool the liquid in the self-circulating loop, thereby achieving temperature control of the liquid in the liquid storage tank 300. The cooler 500 cools the liquid in the liquid storage tank 300 to below room temperature, that is, the target set temperature of the liquid storage tank 300 is lower than room temperature, so that the temperature control process does not require heating. In some cases, if it is necessary to raise the temperature of the liquid in the storage tank 300, the first valve 800 can be opened, the first pump 12 can be turned on, and the higher temperature liquid in the outer tank 220 can be pumped into the storage tank 300 to raise the temperature of the liquid in the storage tank 300.

[0064] The outer tank self-circulation loop includes an outer tank 220, a second pump 600, and a heater 700. The second pump 600 and the heater 700 are connected to the inlet and outlet of the outer tank 220, respectively. The heater 700 is used to heat the liquid in the outer tank 220 to above room temperature. Specifically, the outer tank 220, the second pump 600, and the heater 700 can be connected via pipelines. For example, the second pump 600 and the heater 700 can be connected sequentially between the outlet and inlet of the outer tank 220. When the second pump 600 is activated, the liquid in the outer tank 220 is discharged through the outlet of the outer tank 220, flows through the heater 700, and then flows back to the outer tank 220 through the inlet, realizing the circulation of the liquid within the outer tank self-circulation loop to heat the liquid in the loop and thus achieve temperature control of the liquid in the outer tank 220.

[0065] The outer tank liquid inlet circuit includes a first pump 400 and a first valve 800 connected between the first pump 400 and the inlet of the outer tank 220. The first valve 800 is used to connect or disconnect the first pump 400 and the outer tank 220. When the first pump 400 is connected to the outer tank 220, the first pump 400 pumps the liquid in the storage tank 300 to the outer tank 220. The outer tank liquid inlet circuit is used to inject liquid into the outer tank 220. It shares the first pump 400 with the storage tank self-circulation loop. Specifically, the outlet of the storage tank 300 is connected to one end of the first pump 400, and the other end of the first pump 400 is connected to the first valve 800 and the inlet of the cooler 500. When the first pump 400 is started, the first valve 800 is opened, and the liquid in the storage tank 300 can enter the outer tank 220 through the first pump 400. After the outer tank 220 is filled with water, the first valve 800 is closed, and the liquid in the outer tank 220 is isolated from the liquid in the storage tank 300. At this time, the second pump 600 and heater 700 can be activated, and the outer tank 220 will self-circulate and control its temperature to heat the liquid inside the outer tank 220 to a temperature higher than room temperature. This means the set temperature of the outer tank 220 is higher than room temperature, thus eliminating the need for refrigeration during the temperature control process. In some cases, if it is necessary to cool the outer tank 220, the first valve 800 can be opened, and the first pump 12 will start to pump the cooler liquid from the storage tank 300 into the outer tank 220, thereby lowering the temperature of the liquid inside the outer tank 220.

[0066] The inner tank liquid inlet circuit is used to add a fixed amount of liquid from the storage tank 300 to the inner tank 210. The inner tank liquid inlet circuit includes a first pump 400 and a second valve 900 connected between the first pump 400 and the inlet of the inner tank 210. The second valve 900 is used to connect or disconnect the first pump 400 and the inner tank 210. When the first pump 400 is connected to the inner tank 210, it pumps the liquid from the storage tank 300 to the inner tank 210. The inner tank liquid inlet circuit injects a fixed amount of liquid into the inner tank 210. It shares the first pump 400 with the storage tank self-circulation circuit, i.e., one pump is used for the self-circulation of the storage tank 300, the liquid inlet of the outer tank 220, and the liquid inlet of the inner tank 210. Specifically, the outlet of the storage tank 300 is connected to one end of the first pump 400, and the other end of the first pump 400 is connected to the first valve 800, the second valve 900, and the inlet of the cooler 500. During testing, the first pump 400 is activated, and the second valve 900 is opened, allowing liquid in the storage tank 300 to enter the inner tank 210 via the first pump 400. After the inner tank 210 has been filled with water, the second valve 900 is closed. After the test is completed, the liquid in the inner tank 210 can be drained, and liquid can be refilled for the next measurement.

[0067] By measuring the liquid path settings, both the outer barrel 220 and the storage tank 300 can achieve self-circulation temperature control, meaning they can achieve independent temperature control and can be controlled at different target temperatures. During testing, the first valve 800 disconnects the connection between the first pump 400 and the outer barrel 220, completely isolating the outer barrel 220 from the inner barrel 210. The outer barrel 220 does not participate in the liquid path isolation and independent temperature control of the storage tank 300 and the inner barrel 210, thus achieving liquid path isolation and independent temperature control for the outer barrel 220. Therefore, it will not affect the test. After the test, the liquid in the inner barrel 210 that has increased in temperature simply returns to the storage tank 300, without affecting the temperature control of the outer barrel 220, improving test efficiency. Moreover, this liquid path structure is simple, requiring only a cooler 500 and a heater 700 to achieve independent temperature control for the outer barrel 220 and the storage tank 300. The first valve 800 and the second valve 900 work together to achieve isolation of the outer barrel 220. The number of parts is small, and the connection structure is simple, thereby reducing manufacturing and maintenance costs. In addition, the temperature control capabilities of the outer tank 220 and the storage tank 300 can be supplemented by starting and stopping the first valve 800 in conjunction with the first pump 400, allowing the low-temperature liquid in the storage tank 300 to be added to the outer tank 220, or by adding the higher-temperature liquid in the outer tank 220 to the storage tank 11.

[0068] Specifically, the outer tub 220's temperature control, according to standard requirements, can be set to a target temperature slightly higher than the ambient temperature. This temperature is controlled by a heater 700 connected in series in the outer tub's self-circulation loop. When the controlled temperature exceeds the target temperature of the outer tub 220, the first valve 800 is activated / deactivated to control the amount of water flowing from the storage tank 11 into the outer tub 14, allowing the outer tub 220's temperature to return to its target temperature. Similarly, the storage tank 300's temperature control, according to standard requirements, can be set to a target temperature slightly lower than or approximately equal to the ambient temperature. This temperature is controlled by a cooler 500 connected in series in the storage tank's self-circulation loop. When the controlled temperature falls below the target temperature of the storage tank 300, the first valve 800 is activated / deactivated to control the amount of water flowing back from the outer tub 220 into the storage tank 300, allowing the storage tank 300's temperature to return to its target temperature.

[0069] When liquid is introduced into the inner tank 210, the amount of liquid inside the inner tank 210 needs to be controlled; that is, the inner tank 210 is quantitatively supplied with liquid. Specifically, this can be achieved using a measuring cup or by installing a liquid level detection device inside the inner tank 210. When using a measuring cup, the liquid inlet into the inner tank 210 is made by passing liquid from the storage tank 300 into the inner tank 210 through the measuring cup. When using a liquid level detection device, the liquid inlet into the inner tank 210 is made by directly feeding liquid from the storage tank 300 into the inner tank 210. The following description uses two implementation methods as examples.

[0070] In one embodiment, a measuring cup is used to achieve quantitative liquid inlet. The inner tank liquid inlet circuit also includes a third valve and a measuring cup, which are sequentially connected between the first pump 400 and the second valve 900. Specifically, the inner tank liquid inlet circuit is further equipped with a third valve and a measuring cup. The third valve is connected between the outlet of the first pump 400 and the inlet of the measuring cup, and the outlet of the measuring cup is connected to the inner tank 210. When the second valve 900 disconnects the measuring cup from the inner tank 210 and the third valve connects the first pump 400 to the measuring cup, the first pump 400 pumps the liquid in the storage tank 300 to the measuring cup. The measuring cup is used to measure a fixed amount of liquid to add to the inner tank 210. Specifically, during testing, the first pump 400 and the third valve are first turned on. The first pump 400 pumps the liquid in the storage tank 300 to the measuring cup, i.e., liquid filling the measuring cup. The measuring cup is used to measure a fixed amount of liquid to add to the inner container 210. Once the liquid in the measuring cup reaches the target volume, the third valve is closed, and the second valve 900 is opened, allowing the liquid in the measuring cup to flow into the inner container 210. Using a measuring cup allows for convenient measurement of a fixed amount of liquid, and the specific quantitative value can be controlled according to the scale of the measuring cup, or it can be adjusted by replacing the measuring cup with one of different volumes.

[0071] In some embodiments, the height of the measuring cup is higher than the height of the inner container 210, so that when the second valve 900 connects the measuring cup and the inner container 210, a measured amount of liquid in the measuring cup flows into the inner container 210. By positioning the measuring cup above the inner container 210, when the second valve 19 is opened to connect the measuring cup and the inner container 210, the liquid in the measuring cup can automatically flow into the inner container 210 under its own gravity. With the above configuration, the liquid in the measuring cup can be injected into the inner container 210 without the need for a power component. In other embodiments, a liquid pump can also be provided between the measuring cup and the inner container 210 to pump the liquid in the measuring cup to the inner container 210.

[0072] In some embodiments, the measuring cup is equipped with an overflow port, which is connected to the storage tank 300. During testing, the third valve is opened, allowing liquid from the storage tank 300 to flow into the measuring cup until it is full; any excess liquid overflows back into the storage tank 300. Simultaneously, the first valve 800 can be controlled to open, allowing liquid from the storage tank 300 to flow into the outer container 220, maintaining the outer container 220 at full capacity. By providing an overflow port, the measuring cup allows for precise control of the amount of liquid added by directly overflowing the corresponding volume from the measuring cup.

[0073] In other embodiments, quantitative liquid feeding is achieved by installing a liquid level detection device inside the inner tank 210. This embodiment differs from the method described above, which uses a measuring cup, as it eliminates the need for a measuring cup in the inner tank's liquid inlet path. Instead, a liquid level detection device is installed inside the inner tank 210 to detect the liquid level. The second valve 900 disconnects the first pump 400 from the inner tank 210 when the liquid level detection device detects that the liquid level in the inner tank 210 has reached a preset level. In other words, by installing a liquid level detection device, the liquid level in the inner tank 210 can be detected. When the liquid level reaches the preset level, indicating that the liquid volume in the inner tank 210 has reached the corresponding quantitative amount, the second valve 900 can be closed to stop the liquid feeding. The use of a liquid level detection device further simplifies the structure of the inner tank's liquid inlet path. Specifically, the liquid level detection device can be a probe.

[0074] In some embodiments, the outer tank 220 is provided with an overflow port, which is connected to the storage tank 300. Specifically, the overflow port of the outer tank 220 is connected to the storage tank 300 through an overflow pipe. By providing an overflow port on the outer tank 220, when liquid is added to the outer tank 220, the liquid in the storage tank 300 is pumped to the outer tank 220 by the action of the first pump 400 until the outer tank 220 is full and overflows back to the storage tank 300. As configured above, the outer tank 220 can be filled directly when adding liquid. Specifically, the first valve 800 is used for adding liquid to the outer tank 220, and after the outer tank 220 is full, the liquid returns to the storage tank 300 through the overflow pipe of the outer tank 220. No other valves are provided for adding water to the outer tank 220.

[0075] In some embodiments, the inner tank 210 is equipped with a drain valve, which is connected to the storage tank 300 via a drain pump 910. The drain valve connects or disconnects the inner tank 210 from the drain pump 910, and the drain pump 910 pumps the liquid in the inner tank 210 to the storage tank 300 when the drain valve is open. By setting a drain valve in the inner tank 210 and cooperating with a drain pump 910 to drain the liquid from the inner tank 210, after the test is completed, the drain pump 910 can be turned on and the drain valve opened, so that the drain pump 910 pumps the liquid in the inner tank 210 back to the storage tank 300. The liquid in the storage tank 300 can be temperature-controlled through the storage tank's self-circulation loop to meet the requirements of the next test. Specifically, the drain pump 910 can be a diaphragm pump, meaning that the liquid cannot flow when the diaphragm pump is not turned on, but after it is started, the liquid can flow from the inner tank 210 to the storage tank 300.

[0076] In some embodiments, both the first valve 800 and the second valve 900 are two-position, two-way solenoid valves, specifically normally closed two-position, two-way solenoid valves. Taking the first valve 800 as an example, its two ports are connected to the first pump 400 and the outer tank 220, respectively. When the first valve 800 is in the first position, the two ports of the first valve 800 are disconnected, thereby disconnecting the first pump 400 and the outer tank 220; when the first valve 800 is in the second position, the two ports of the first valve 800 are connected, thereby connecting the first pump 400 and the outer tank 220. The connection of the second valve 900 is similar to that of the first valve 800, and will not be described again here. Using a two-position, two-way solenoid valve results in a simple structure, and one solenoid valve can achieve on / off control. In addition, solenoid valves can be connected to a controller to facilitate automatic control. In other embodiments, the first valve 800 and the second valve 900 can also be a solenoid valve group equivalent to the two-position, two-way solenoid valve.

[0077] In some embodiments, both the first pump 400 and the second pump 600 are magnetic circulation pumps. When not in operation, the magnetic circulation pump allows for bidirectional flow.

[0078] When using the aforementioned oxygen bomb calorimeter, the temperature control methods include:

[0079] The first pump 400 and the cooler 500 are turned on so that the liquid in the storage tank 300 circulates in the storage tank self-circulation loop and is cooled to a first set temperature, wherein the first set temperature is lower than room temperature.

[0080] The first valve 800 connects the first pump 400 and the outer tank 220. The first pump 400 is turned on to pump the liquid in the storage tank 300 to the outer tank 220. When the liquid in the outer tank 220 reaches the preset amount, the first valve 800 disconnects the first pump 400 and the outer tank 220 to isolate the outer tank 220 from the storage tank 300.

[0081] Heater 700 and second pump 600 are turned on to cause the liquid in outer tank 220 to circulate in the outer tank self-circulation loop and be heated to a second set temperature, wherein the second set temperature is higher than room temperature;

[0082] The first pump 400 is turned on, the first valve 800 disconnects the first pump 400 from the outer tank 220, and the second valve 900 connects the first pump 400 to the inner tank 210. The first pump 400 pumps a fixed amount of liquid from the storage tank 300 to the inner tank 210.

[0083] Before testing, when it is necessary to cool the liquid in the storage tank 300, the cooler 500 is turned on. The self-circulation loop of the storage tank controls the temperature of the liquid in the storage tank 300, reducing it to a first set temperature. The specific value of the first set temperature can be set as needed and is not specifically limited here. Of course, if the temperature of the storage tank 300 meets the first set temperature, the above temperature control steps are not required. After the temperature of the storage tank 300 reaches the first set temperature, the first valve 800 connects the storage tank 300 and the outer tank 220. The first pump 400 pumps the liquid in the storage tank 300 to the outer tank 220. When the liquid in the outer tank 220 reaches the preset amount, the first valve 800 disconnects the first pump 400 from the outer tank 220, thereby disconnecting the storage tank 300 from the outer tank 220. Specifically, the amount of liquid in the outer tank 220 that reaches the preset level can be the amount of liquid in the outer tank 220 corresponding to the height of the overflow port. That is, excess liquid in the outer tank 220 flows back to the storage tank 300 through the overflow port, thus ensuring a fixed amount of liquid in the outer tank 220. After the liquid in the outer tank 220 is fully filled, when it is necessary to heat the liquid in the outer tank 220, the heater 700 is turned on. The outer tank's self-circulation loop controls the temperature of the liquid in the outer tank 220, raising it to the second set temperature. The specific value of the second set temperature can be set as needed and is not specifically limited here.

[0084] After liquid is introduced into the outer tank 220, or simultaneously with liquid introduction into the outer tank 220, liquid can be introduced into the inner tank 210. Specifically, the second valve 900 connects the storage tank 300 and the inner tank 210, and the first pump 400 pumps the liquid in the storage tank 300 into the inner tank 210. A level sensor installed inside the inner tank 210, or a measuring cup that works in conjunction with the inner tank 210, ensures quantitative liquid introduction into the inner tank 210. Once liquid introduction into the inner tank 210 is complete, the corresponding tests can be performed.

[0085] After the test is completed, the liquid in the inner tank 210 can flow back to the storage tank 300 through the drain valve. The temperature of the liquid in the storage tank 300 will rise accordingly. If necessary, the temperature of the liquid in the storage tank 300 can be controlled by turning on the cooler 500 and the self-circulation loop of the storage tank, so that it can be reduced back to the first set temperature for the next test.

[0086] This liquid circuit temperature control method allows both the outer tank 220 and the storage tank 300 to achieve self-circulation temperature control, meaning they can be independently controlled and can be controlled at different target temperatures. During testing, the first valve 800 disconnects the first pump 400 from the outer tank 220, completely isolating the outer tank 220 from the inner tank 210. The outer tank 220 does not participate in the liquid circuit isolation and independent temperature control of the storage tank 300 and inner tank 210, thus achieving liquid circuit isolation and independent temperature control for the outer tank 220. Therefore, it will not affect the test. After the test, the liquid in the inner tank 210 that has increased in temperature simply returns to the storage tank 300, without affecting the temperature control of the outer tank 220, improving test efficiency. Moreover, this liquid circuit structure is simple, requiring only a cooler 500 and a heater 700 to achieve independent temperature control for the outer tank 220 and the storage tank 300. The first valve 800 and the second valve 900 work together to achieve isolation of the outer tank 220. The number of parts is small, and the connection structure is simple, thereby reducing manufacturing and maintenance costs. In addition, the temperature control capabilities of the outer tank 220 and the storage tank 300 can be supplemented by starting and stopping the first valve 800 in conjunction with the first pump 400, allowing the low-temperature liquid in the storage tank 300 to be added to the outer tank 220, or by adding the higher-temperature liquid in the outer tank 220 to the storage tank 300.

[0087] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oxygen bomb calorimeter, characterized in that, include: The base (100) is rectangular and is divided into four quadrants by a rectangular coordinate system perpendicular to the sides, namely the first quadrant (110), the second quadrant (120), the third quadrant (130) and the fourth quadrant (140). A liquid storage tank (300) is disposed on the base (100), wherein more than 50% of the projected area of ​​the liquid storage tank (300) in the projection of the base (100) is located in the first quadrant (110), and the projected area of ​​the liquid storage tank (300) in other quadrants occupies no more than 50% of the area of ​​the quadrant. A measuring bucket (200) is disposed on the base (100). More than 50% of the projected area of ​​the measuring bucket (200) in the projection of the base (100) is located in the third quadrant (130), and the projected area of ​​the measuring bucket (200) in other quadrants occupies no more than 50% of the area of ​​the quadrant.

2. The oxygen bomb calorimeter according to claim 1, characterized in that, The first quadrant (110) and the second quadrant (120) are distributed along the length direction of the base (100), and the third quadrant (130) and the fourth quadrant (140) are distributed along the width direction of the base (100). The projection of the measuring bucket (200) onto the base (100) is entirely located in the first quadrant (110), or partially located in the first quadrant (110) and partially located in the fourth quadrant (140). The projection of the liquid storage tank (300) onto the base (100) is located in the third quadrant (130), or partially in the third quadrant (130) and partially in the second quadrant (120).

3. The oxygen bomb calorimeter according to claim 2, characterized in that, At least 80% of the projected area of ​​the measuring barrel (200) on the base (100) is located in the first quadrant (110). At least 80% of the projected area of ​​the liquid storage tank (300) on the base (100) is located in the third quadrant (130).

4. The oxygen bomb calorimeter according to claim 1, characterized in that, The interface connecting the measuring tank (200) and the liquid storage tank (300) is located on the side of the measuring tank (200) facing the fourth quadrant (140); The interface connecting the liquid storage tank (300) and the measuring bucket (200) is located on the side of the liquid storage tank (300) facing the second quadrant.

5. The oxygen bomb calorimeter according to claim 1, characterized in that, The fourth quadrant (140) is equipped with a touch screen.

6. The oxygen bomb calorimeter according to claim 1, characterized in that, It also includes a measuring bucket cover on the measuring bucket (200) and a liquid storage tank cover on the liquid storage tank (300), wherein the projection of the liquid storage tank cover on the base (100) is at least located in the first quadrant (110). The projection of the measuring bucket cover onto the base (100) is at least located in the third quadrant (130).

7. The oxygen bomb calorimeter according to claim 6, characterized in that, It also includes a first lifting drive device for driving the lifting and lowering of the measuring bucket lid, the first lifting drive device being located in the second quadrant (120). And / or, It also includes a second lifting drive device for driving the liquid storage tank cover to rise and fall, the second lifting drive device being located in the fourth quadrant region (140).

8. The oxygen bomb calorimeter according to any one of claims 1-7, characterized in that, The measuring container (200) includes an outer container (220) and an inner container (210) nested together. The oxygen bomb calorimeter includes a measuring liquid path, which includes: The liquid storage tank self-circulation loop includes the liquid storage tank (300), a first pump (400) and a cooler (500). The first pump (400) and the cooler (500) are connected between the outlet and the inlet of the liquid storage tank (300). The cooler (500) is used to cool the liquid in the liquid storage tank (300) to below room temperature. The outer tank self-circulation loop includes the outer tank (220), a second pump (600), and a heater (700). The second pump (600) and the heater (700) are connected to the inlet and outlet of the outer tank (220). The heater (700) is used to heat the liquid in the outer tank (220) to above room temperature. The outer tank liquid inlet circuit includes a first pump (400) and a first valve (800) connected between the first pump (400) and the inlet of the outer tank (220). The first valve (800) is used to connect or disconnect the first pump (400) and the outer tank (220). When the first pump (400) is connected to the outer tank (220), the first pump (400) is used to pump the liquid in the storage tank (300) to the outer tank (220). The inner tank liquid inlet circuit is used to add a fixed amount of liquid from the storage tank (300) to the inner tank (210). The inner tank liquid inlet circuit includes a first pump (400) and a second valve (900) connected between the first pump (400) and the inlet of the inner tank (210). The second valve (900) is used to connect or disconnect the first pump (400) and the inner tank (210). When the first pump (400) is connected to the inner tank (210), the first pump (400) is used to pump the liquid in the storage tank (300) to the inner tank (210).

9. The oxygen bomb calorimeter according to claim 8, characterized in that, The inner tank liquid inlet circuit also includes a third valve and a measuring cup, the third valve and the measuring cup being connected sequentially between the first pump (400) and the second valve (900); The first pump (400) is used to pump the liquid in the storage tank (300) to the measuring cup when the second valve (900) disconnects the measuring cup from the inner barrel (210) and the third valve connects the first pump (400) to the measuring cup. The measuring cup is used to measure a certain amount of the liquid to add to the inner barrel (210).

10. The oxygen bomb calorimeter according to claim 8, characterized in that, The inner tank (210) is equipped with a liquid level detection device, which is used to detect the liquid level in the inner tank (210). The second valve (900) is used to disconnect the first pump (400) from the inner tank (210) when the liquid level detection device detects that the liquid level in the inner tank (210) has reached a preset liquid level.

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