Water-cooled wall heat flux density measuring device

Abstract

The utility model relates to a water-cooled wall heat flux density measuring device which comprises a wrapping part and a plurality of temperature measuring elements, the wrapping part is attached to at least part of the surface of a circular tube structure and at least part of the surface of a connecting piece structure of a water-cooled wall, and the temperature measuring elements are connected with a plurality of preset positions of the water-cooled wall. The preset positions are located on the surfaces, attached to the wrapping piece, of the circular pipe structure and the connecting piece structure. According to the water-cooled wall, the wrapping part can wrap the preset position of the water-cooled wall, and the wrapping part can be made of the heat insulation material, so that heat exchange between the water-cooled wall and the external environment is reduced or avoided, the situation that the temperature measuring element detects the environment temperature is avoided, and the accuracy and reliability of the measurement result are improved.

Description

Technical Field

[0001] This application relates to the technical field of water wall heat flux density measurement, and particularly to a water wall heat flux density measurement device. Background Art

[0002] Heat flux density is an important parameter for the safe and stable operation of high-temperature equipment. The heat flux density of high-temperature equipment can be analyzed to determine the current operating conditions of the high-temperature equipment and formulate improvement plans.

[0003] In the related art, the heat flux density measurement device is exposed to the atmospheric environment, and it is very easy to collect the ambient temperature, resulting in a decrease in the accuracy of the measurement result, which is not conducive to obtaining accurate temperature parameters, and further not conducive to formulating effective improvement plans, resulting in a shortened life of the high-temperature equipment and possible safety hazards. Summary of the Utility Model

[0004] To overcome the problems existing in the related art, this application provides a water wall heat flux density measurement device.

[0005] According to an embodiment of the present disclosure, there is provided a water wall heat flux density measurement device, including:

[0006] A covering member, which is attached to at least part of the surfaces of the circular tube structure and the connecting piece structure of the water wall. The water wall is composed of a plurality of circular tube structures and connecting piece structures arranged alternately;

[0007] A plurality of temperature measuring elements, which are connected to a plurality of preset positions of the water wall. The plurality of preset positions are located on the surfaces of the circular tube structure and the connecting piece structure that are attached to the covering member.

[0008] In some embodiments, the covering member includes:

[0009] A bending section, which is in an arc shape and is attached to at least part of the surface of the circular tube structure;

[0010] A straight section, which is connected to the bending section and is attached to at least part of the surface of the connecting piece structure.

[0011] In some embodiments, the bending section is an arc structure with an arc angle equal to 180°; and / or,

[0012] In the arrangement direction of the plurality of circular tube structures, the size of the straight section is equal to the size of the connecting piece structure.

[0013] In some embodiments, the bending section and the straight section are an integrally formed structure.

[0014] In some embodiments, the water-cooled wall heat flux density measuring device further includes a heat collecting member, and the temperature measuring element is connected to the water-cooled wall through the heat collecting member.

[0015] In some embodiments, in the extending direction of the circular tube structure, the heat collecting member is disposed in the middle region of the covering member.

[0016] In some embodiments, the covering member is provided with a plurality of accommodating cavities, and the accommodating cavities are formed by recessing from the surface of the covering member that is in contact with the water-cooled wall along the thickness direction of the covering member;

[0017] The heat collecting member is disposed in the accommodating cavity.

[0018] In some embodiments, the covering member is further provided with a plurality of through holes, the plurality of through holes are aligned with the plurality of accommodating cavities, and the temperature measuring element passes through the through holes and is connected to the heat collecting member.

[0019] In some embodiments, the covering member is magnetically connected or adhesively connected to the water-cooled wall.

[0020] In some embodiments, the plurality of preset positions include:

[0021] A first preset position, located at the central axis position of the circular tube structure;

[0022] A second preset position, located at the connection position between the circular tube structure and the connection piece structure;

[0023] A third preset position, in the arrangement direction of the plurality of circular tube structures, the third preset position is located at the middle position of the connection piece structure.

[0024] The technical solution provided by the embodiments of the present application may include the following beneficial effects: The covering member can cover the preset positions of the water-cooled wall, and the covering member can be made of a heat-insulating material, thereby reducing or avoiding heat exchange between the water-cooled wall and the external environment, and avoiding the temperature measuring element from detecting the ambient temperature, which is beneficial to improving the accuracy and reliability of the measurement result.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and used together with the specification to explain the principles of the present application.

[0027] Figure 1 is a schematic diagram of the assembled state of a water-cooled wall heat flux density measuring device shown according to an exemplary embodiment.

[0028] Figure 2 is Figure 1 a sectional view taken along the A-A direction in the middle.

[0029] Figure 3 is a schematic diagram of a water-cooled wall heat flux density measuring device shown according to an exemplary embodiment.

[0030] Reference numerals:

[0031] 100, measuring device;

[0032] 10, covering member; 11, bent section; 12, straight section; 10a, accommodating cavity; 10b, through hole;

[0033] 20, temperature measuring element;

[0034] 30, heat collecting member;

[0035] 200, water-cooled wall;

[0036] 40, circular tube structure; 50, connecting piece structure; 60, preset position; 61, first preset position; 62, second preset position; 63, third preset position. Detailed implementation manners

[0037] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0038] The heat flux density measuring device in the related art is exposed to the atmospheric environment, and it is very easy to collect the ambient temperature, resulting in a reduction in the accuracy of the measurement result, which is not conducive to obtaining accurate temperature parameters, and further not conducive to formulating effective improvement plans, resulting in a shortened service life of high-temperature equipment and possible safety hazards.

[0039] To solve the problems described in the related art, the embodiments of the present application provide a water-cooled wall heat flux density measuring device. The water-cooled wall heat flux density measuring device includes a covering member and a plurality of temperature measuring elements. The covering member is attached to at least part of the surfaces of the circular tube structure and the connecting piece structure of the water-cooled wall. The plurality of temperature measuring elements are connected to a plurality of preset positions of the water-cooled wall, and the plurality of preset positions are located on the surfaces of the circular tube structure and the connecting piece structure that are attached to the covering member. In the present disclosure, the covering member can cover the preset positions of the water-cooled wall, and the covering member can be made of a heat-insulating material, so as to reduce or avoid heat exchange between the water-cooled wall and the external environment, and avoid the temperature measuring element from detecting the ambient temperature, which is beneficial to improving the accuracy and reliability of the measurement result.

[0040] According to an exemplary embodiment of the present application, as Figure 1 shown, this embodiment provides a water-cooled wall heat flux density measuring device 100. The water-cooled wall heat flux density measuring device 100 is used to accurately detect the heat flux density on the back-fire side of the water-cooled wall 200. The heat flux density is an important parameter for the safe and stable operation of high-temperature operating equipment (thermal power boilers). By measuring the heat flux density of the water-cooled wall 200 and analyzing the heat flux density, the operating conditions of the water-cooled wall 200 can be predicted, and then the operating parameters of the boiler can be optimized based on the prediction results to improve the thermal efficiency.

[0041] As Figure 1 shown, the water-cooled wall heat flux density measuring device 100 includes a cladding member 10 that clads at least a part of the surface of the water-cooled wall 200. Exemplarily, the water-cooled wall 200 includes a plurality of circular tube structures 40 and connecting piece structures 50 (also referred to as fin structures) arranged alternately. The cladding member 10 can clad at least a part of the surface of the circular tube structure 40 and the connecting piece structure 50. For example, the cladding member 10 can clad a part of the outer peripheral surface of the circular tube structure 40, can also clad a part of the surface of the connecting piece structure 50, or can also clad the connection position between the circular tube structure 40 and the connecting piece structure 50. Among them, the cladding member 10 can be an integral structure or a plurality of independent structures, as long as it fits with the designated area of the water-cooled wall 200.

[0042] As Figure 1 and Figure 2 shown, the water-cooled wall heat flux density measuring device 100 further includes a plurality of temperature measuring elements 20, which are connected to a plurality of preset positions 60 on the water-cooled wall 200. The preset positions 60 are located on the surfaces of the circular tube structure 40 and the connecting piece structure 50 that are in contact with the cladding member 10. In this embodiment, the preset positions 60 are not overly limited, and in actual implementation, they can be adaptively selected according to requirements. The temperature measuring element 20 is, for example, a thermocouple. The thermocouple can directly measure the temperature and convert the temperature signal into a thermoelectromotive force signal, and then convert it into the temperature of the measured object through an electrical instrument. The thermocouple has the advantages of simple structure, convenient manufacture, wide measurement range, high accuracy, and easy remote transmission of the output signal. Moreover, the thermocouple is a passive sensor and does not require an external power supply during measurement, which can simplify the structure of the water-cooled wall heat flux density measuring device 100.

[0043] Here, it should be noted that the cladding member 10 can be made of an insulating material. The insulating material can prevent the temperature measuring element 20 from detecting the ambient temperature and avoid excessive heat exchange between the water-cooled wall 200 and the external environment, thereby improving the stability of the detection. The insulating material is, for example, ceramic.

[0044] In the embodiments of the present disclosure, the cladding member 10 can cover a preset position 60 of the water wall 200, and the cladding member 10 can be made of a heat-insulating material, so as to reduce or avoid heat exchange between the water wall 200 and the external environment, and avoid the temperature measuring element 20 from detecting the ambient temperature, which is beneficial to improving the accuracy and reliability of the measurement result.

[0045] In an exemplary embodiment, as Figure 1 and Figure 2 shown, the present embodiment provides a water wall heat flux density measuring device 100. The water wall heat flux density measuring device 100 includes a cladding member 10 and a plurality of temperature measuring elements 20. The cladding member 10 is attached to at least part of the surfaces of the circular tube structure 40 and the connecting piece structure 50 of the water wall 200. The plurality of temperature measuring elements 20 are connected to a plurality of preset positions 60 of the water wall 200. The plurality of preset positions 60 are located on the surfaces of the circular tube structure 40 and the connecting piece structure 50 that are attached to the cladding member 10.

[0046] In the present embodiment, as Figure 1 shown, the cladding member 10 includes a bent section 11. The bent section 11 is arc-shaped and is attached to at least part of the surface of the circular tube structure 40 of the water wall 200. The curvature of the bent section 11 can be the same as the curvature of the circular tube structure 40, so as to ensure the attachment effect.

[0047] In one example, the radius of the inner wall surface of the bent section 11 is slightly smaller than the radius of the outer wall surface of the circular tube structure 40. The circular tube structure 40 and the bent section 11 are adhesively connected through an adhesive layer. The difference between the radius of the bent section 11 and the radius of the circular tube structure 40 is the thickness of the adhesive layer.

[0048] In another example, the radius of the inner wall surface of the bent section 11 is equal to the radius of the outer wall surface of the circular tube structure 40. The circular tube structure 40 and the bent section 11 can be connected by magnetic attraction or clamping. For example, a magnet is provided on the side of the bent section 11 facing away from the structure of the circular tube, and the water wall 200 is made of a ferromagnetic material. A magnetic attraction force is generated between the magnet and the water wall 200, so that the bent section 11 is attached to the water wall 200.

[0049] As Figure 1 shown, the cladding member 10 further includes a straight section 12. The straight section 12 is connected to the bent section 11. The straight section 12 is used to be attached to the connecting piece structure 50 of the water wall 200. In the present embodiment, based on the shape of the water wall 200, the cladding member 10 is provided to include the bent section 11 and the straight section 12, which improves the attachment range of the cladding member 10 to the water wall 200, and further increases the temperature measurement area, which is beneficial to obtaining more accurate results.

[0050] Refer to Figure 1, the straight section 12 and the bent section 11 can be an integrally formed structure or a split structure. In one example, the covering member 10 can be formed by an injection molding process, thereby forming the straight section 12 and the bent section 11 of an integral structure. The integrally formed production process has the advantages of simple production process, high product precision, low production cost, high production efficiency, etc.

[0051] Among them, as Figure 1 shown, the bent section 11 is an arc structure with an arc angle equal to 180°, so that the bent section 11 can cover the entire backfire side of the round tube structure 40. By covering the entire backfire side of the round tube structure 40, the heat insulation ability of the bent section 11 of the covering member 10 is improved, which is beneficial to improving the accuracy of the measurement result.

[0052] Among them, as Figure 1 shown, in the arrangement direction of the plurality of round tube structures 40, the size of the straight section 12 of the covering member 10 is equal to the size of the connecting piece structure 50, so that the straight section 12 can cover the entire backfire side of the connecting piece structure 50. By covering the entire backfire side of the connecting piece structure 50, the heat insulation ability of the straight section 12 of the covering member 10 is improved, which is beneficial to improving the accuracy of the measurement result.

[0053] In an exemplary embodiment, as Figure 1 and Figure 2 shown, this embodiment provides a water-cooled wall heat flux density measuring device 100. The water-cooled wall heat flux density measuring device 100 includes a covering member 10 and a plurality of temperature measuring elements 20. The covering member 10 is attached to at least a part of the surfaces of the round tube structure 40 and the connecting piece structure 50 of the water-cooled wall 200. The plurality of temperature measuring elements 20 are connected to a plurality of preset positions 60 of the water-cooled wall 200. The plurality of preset positions 60 are located on the surfaces of the round tube structure 40 and the connecting piece structure 50 that are attached to the covering member 10.

[0054] The water-cooled wall heat flux density measuring device 100 provided in this embodiment can include any structure provided in the above various embodiments.

[0055] As Figure 1 and Figure 2 shown, the water-cooled wall heat flux density measuring device 100 further includes a heat collecting member 30. The heat collecting member 30 is located between the temperature measuring element 20 and the water-cooled wall 200, so that the temperature measuring element 20 is connected to the water-cooled wall 200 through the heat collecting member 30. The heat collecting member 30 can be made of a high thermal conductivity material, which can quickly collect the heat at the preset position 60 of the water-cooled wall 200 and conduct the heat to the temperature measuring element 20, which is beneficial to improving the temperature measurement accuracy. The material of the heat collecting member 30 is such as graphite and copper.

[0056] Among them, as Figure 2 and Figure 3As shown, the covering member 10 is provided with a plurality of accommodating cavities 10a, and the accommodating cavities 10a are recessed from the surface of the covering member 10 that fits the water-cooled wall 200 along the thickness direction of the covering member 10 ( Figure 1 the z direction shown in the figure), and the heat collecting member 30 is arranged in the accommodating cavity 10a.

[0057] In one example, the thickness of the heat collecting member 30 is the same as the depth of the accommodating cavity 10a, and the covering member 10 and the water-cooled wall 200 are magnetically attracted or snap-connected, so as to ensure that both the covering member 10 and the heat collecting member 30 are in contact with the water-cooled wall 200.

[0058] In another example, the thickness of the heat collecting member 30 is slightly greater than the depth of the accommodating cavity 10a, and the covering member 10 and the water-cooled wall 200 are adhesively connected through an adhesive layer. The difference between the thickness of the heat collecting member 30 and the depth of the accommodating cavity 10a is equal to the thickness of the adhesive layer, so as to ensure that both the covering member 10 and the heat collecting member 30 are in contact with the water-cooled wall 200, improve the heat insulation and heat conduction capabilities of the water-cooled wall heat flux density measuring device 100, and improve the measurement accuracy.

[0059] In the embodiments of the present disclosure, the shape of the heat collecting member 30 is not overly limited. For example, the shape of the heat collecting member 30 can be a cylinder, a cuboid, etc.

[0060] Among them, as Figures 1 to 3 shown, in the extending direction of the circular tube structure 40 ( Figure 1 the x direction shown in the figure), the heat collecting member 30 is arranged in the middle area of the covering member 10. Arranging the heat collecting member 30 at the middle position of the covering member 10 in the x direction enables there to be a sufficiently large structure on both sides of the middle area of the covering member 10 to provide heat insulation, improving the heat insulation effect of the covering member 10. And it is convenient to locate the preset position 60, reducing the assembly difficulty.

[0061] Among them, as Figures 1 to 3 shown, the covering member 10 is further provided with a plurality of through holes 10b, and the plurality of through holes 10b are opposite to the plurality of accommodating cavities 10a. The through holes 10b communicate the external environment with each accommodating cavity 10a. The temperature measuring element 20 is a thermocouple. The temperature measuring element 20 penetrates through the through holes 10b. One end of the temperature measuring element 20 is connected to the heat collecting member 30, and the other end of the temperature measuring element 20 is connected to a data processing module (not shown in the drawings).

[0062] Among them, as Figure 2As shown, a plurality of preset positions 60 are provided on the water wall 200. The plurality of preset positions 60 include a first preset position 61 and a third preset position 63. The first preset position 61 is directly opposite to the central axis position of the circular tube structure 40, and the third preset position 63 is directly opposite to the middle position of the connecting piece structure 50. The central axis position of the circular tube structure 40 usually has a relatively low temperature, which is also called the cold temperature measurement position. The middle position of the connecting piece structure 50 usually has a relatively high temperature, which is also called the high temperature measurement position. Based on the temperatures of the cold temperature measurement position and the high temperature measurement position, the heat flux density of the water wall 200 can be obtained.

[0063] Referring to Figure 2 , the preset position 60 may further include a second preset position 62, and the second preset position 62 is directly opposite to the connection position between the circular tube structure 40 and the connecting piece structure 50. The connection position between the circular tube structure 40 and the connecting piece structure 50 usually has a medium temperature between the low temperature and the high temperature, which is also called the medium temperature measurement position. By measuring the temperature at the connection position between the circular tube structure 40 and the connecting piece structure 50, the amount of data is increased, which is beneficial to improving the accuracy and reliability of calculating the heat flux density.

[0064] After considering the specification and practicing the content disclosed herein, those skilled in the art will readily conceive of other embodiments of the present application. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0065] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A water-cooled wall heat flux density measuring device, characterized in that, Including: A cladding member that fits at least partially on the surface of the circular tube structure and the connecting piece structure of the water wall, where the water wall is composed of a plurality of circular tube structures and connecting piece structures arranged alternately; A plurality of temperature measuring elements connected to a plurality of preset positions of the water wall, and the plurality of preset positions are located on the surfaces of the circular tube structure and the connecting piece structure that are in contact with the cladding member.

2. The water-cooled wall heat flux density measuring device according to claim 1, wherein The cladding member includes: A bending section, which is arc-shaped and fits at least partially on the surface of the circular tube structure; A straight section, connected to the bending section, and the straight section fits at least partially on the surface of the connecting piece structure.

3. The water-cooled wall heat flux density measuring device according to claim 2, characterized in that The bending section is an arc structure with an arc angle equal to 180°; and / or In the arrangement direction of the plurality of circular tube structures, the size of the straight section is equal to the size of the connecting piece structure.

4. The water wall heat flux density measuring device according to claim 2, wherein, The bending section and the straight section are an integrally formed structure.

5. The water-cooled wall heat flux density measuring device according to claim 1, characterized in that The water wall heat flux density measuring device further includes a heat collecting member, and the temperature measuring element is connected to the water wall through the heat collecting member.

6. The water-cooled wall heat flux density measuring device according to claim 5, characterized in that, In the extending direction of the circular tube structure, the heat collecting member is arranged in the middle area of the cladding member.

7. The water-cooled wall heat flux density measuring device according to claim 5, characterized in that, The cladding member is provided with a plurality of accommodating cavities, which are formed by recessing the surface of the cladding member that is in contact with the water wall along the thickness direction of the cladding member; The heat collecting member is arranged in the accommodating cavity.

8. The water-cooled wall heat flux density measuring device according to claim 7, characterized in that The cladding member is further provided with a plurality of through holes, the plurality of through holes are opposite to the plurality of accommodating cavities, and the temperature measuring element penetrates through the through holes and is connected to the heat collecting member.

9. The water-cooled wall heat flux density measuring device according to claim 1, characterized in that, The cladding member is magnetically connected or adhesively connected to the water wall.

10. The water wall heat flux density measuring device according to claim 1, characterized in that, The plurality of preset positions include: A first preset position, located at the central axis position of the circular tube structure; A second preset position, located at the connection position between the circular tube structure and the connecting piece structure; A third preset position, in the arrangement direction of the plurality of circular tube structures, the third preset position is located at the middle position of the connecting piece structure.

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