Protective shell sleeve applied to multi-point temperature measuring device and multi-point temperature measuring device

Abstract

The invention belongs to the technical field of multi-point temperature measurement, and discloses a protective shell sleeve applied to a multi-point temperature measuring device and the multi-point temperature measuring device. The protective shell sleeve comprises a shell, one end of which is connected to the connecting seat, and the other end of which extends in a direction far away from the connecting seat; the cross-sectional area of one end, close to the connecting seat, of the shell is larger than that of one end, away from the connecting seat, of the shell; the shell is provided with a plurality of hole channels for the temperature measuring elements to extend out. The distances between the ends, away from the connecting base, of any two of the multiple hole channels and the connecting base are different. According to the invention, through the arrangement of the plurality of pore channels which do not interfere with each other, the normal realization of the functions of the plurality of temperature measuring elements is ensured, the structure is simple, the disassembly and replacement of a single component are facilitated, the detection of temperature measuring points at different positions is realized, and the effects of higher detection precision and higher thermal response speed are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of multi-point temperature measurement, and in particular relates to a protective shell sleeve applied to a multi-point temperature measurement device and a multi-point temperature measurement device. Background Art

[0002] Temperature is a physical parameter that reflects the hot or cold state of an object. In human society, industry, agriculture, commerce, scientific research, national defense, medicine, and environmental protection are all closely related to temperature. For example, in the industrial production automation process, the number of temperature measurement points usually accounts for about half of all measurement points.

[0003] In the current form of temperature measurement, the temperature measuring element is installed in a protective shell to adapt to temperature measurement under high temperature, wear, corrosion, and high flow rate conditions. There are many locations for temperature measurement points, and a multi-point temperature measuring device is usually used. With the increasingly complete digital monitoring requirements and special working conditions, the working conditions in important areas of chemical, petrochemical, nuclear power and other fields are becoming more and more complex, which makes the temperature control during the operation of the equipment more stringent, mainly including temperature measurement accuracy, thermal response time and service life. The protective shell of the existing multi-point temperature measuring device will use a larger inner diameter to ensure the normal installation of the temperature measuring element, considering that multiple temperature measuring elements need to be inserted into one temperature measuring port and the insertion depth is long. Although such a large inner diameter design solves the problem of difficult installation, it also has the problem of low heat transfer efficiency due to the large gap between the temperature measuring element and the inner wall of the shell. Even after long-term use, multiple temperature measuring elements may have interference, entanglement, and mixed temperature transmission. When a temperature measuring element fails, it is impossible to accurately identify the problematic component and it is inconvenient to replace the component. As a result, the temperature measuring element in the shell cannot accurately and quickly measure the temperature of the part to be measured, resulting in low temperature measurement accuracy and long temperature measurement thermal response time.

[0004] Therefore, there is an urgent need to provide a protective shell and a multi-point temperature measuring device with a simple structure, faster thermal response speed and higher temperature measurement accuracy for use in a multi-point temperature measuring device to solve the above problems.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art of low temperature measurement accuracy and long temperature measurement thermal response time, and the purpose is to provide a protective shell cover for a multi-point temperature measurement device.

[0007] Another object of the present invention is to provide a multi-point temperature measuring device using the above-mentioned protective shell.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a protective shell applied to a multi-point temperature measuring device, comprising: a shell, one end of the shell is connected to a connecting seat, and the other end of the shell extends in a direction away from the connecting seat;

[0009] Along a direction perpendicular to the extension direction of the shell, the cross-sectional area of ​​one end of the shell close to the connecting seat is greater than the cross-sectional area of ​​one end of the shell away from the connecting seat;

[0010] The shell is provided with a plurality of holes for the temperature measuring elements to extend out; any two holes among the plurality of holes are at different distances from one end of the connecting seat away from the connecting seat.

[0011] According to one embodiment of the present invention, the housing comprises:

[0012] A first shell, one end of which is connected to the connecting seat;

[0013] A second shell, one end of which is connected to an end of the first shell away from the connecting seat; along a direction perpendicular to the extension direction of the shell, a cross-sectional area of ​​the second shell is smaller than a cross-sectional area of ​​the first shell;

[0014] A third shell, one end of which is connected to an end of the second shell away from the first shell; along a direction perpendicular to the extension direction of the shell, a cross-sectional area of ​​the third shell is smaller than a cross-sectional area of ​​the second shell.

[0015] According to an embodiment of the present invention, the protective shell further comprises: a first connector, the first connector being configured to connect the second shell to the first shell;

[0016] One end of the first connecting member close to the first shell is at least partially inserted into the first shell, and one end of the first connecting member close to the second shell is provided with a first receiving groove;

[0017] The second housing portion is inserted into the first receiving groove.

[0018] According to an embodiment of the present invention, along a direction perpendicular to the extension direction of the shell, a cross-sectional area of ​​an end of the first connecting member away from the first shell is greater than or equal to a cross-sectional area of ​​the first shell.

[0019] According to one embodiment of the present invention, the protective shell further comprises:

[0020] a second connecting member, the second connecting member being configured to connect the third housing to the second housing;

[0021] One end of the second connecting member close to the second shell is at least partially inserted into the second shell, and one end of the second connecting member close to the third shell is provided with a second receiving groove;

[0022] The third housing portion is inserted into the second receiving groove.

[0023] According to an embodiment of the present invention, along a direction perpendicular to the extension direction of the shell, a cross-sectional area of ​​an end of the second connecting member away from the second shell is greater than or equal to a cross-sectional area of ​​the second shell.

[0024] According to an embodiment of the present invention, the first shell, the second shell and the third shell are all hollow columnar structures, and the third shell is connected to the first shell and the second shell;

[0025] The temperature measuring element comprises a first temperature measuring element, a second temperature measuring element and a third temperature measuring element which are arranged in parallel with each other, and one end of the first temperature measuring element, the second temperature measuring element and the third temperature measuring element close to the connecting seat are all arranged in the connecting seat;

[0026] The pores include:

[0027] a first hole, wherein the first hole is arranged on the first connecting member and passes through the first connecting member; a plurality of the first holes are arranged, and some of the first holes are connected with the second shell; the other end of the first temperature measuring element is arranged in the first hole, and a portion of the first temperature measuring element extends out of the shell through the first hole;

[0028] A second channel, the second channel is arranged on the second connecting piece and passes through the second connecting piece; the second channel is connected to the first channel; a plurality of second channels are arranged, and some of the plurality of second channels are connected to the third shell; the other end of the second temperature measuring element is arranged in the second channel, and part of the second temperature measuring element extends out of the shell through the second channel; the third temperature measuring element passes through the first shell, the first connecting piece, the second shell, the second connecting piece and the third shell, and the other end of the third temperature measuring element partially extends out of the third shell of the shell.

[0029] According to an embodiment of the present invention, the protective shell further comprises: a guide tube, the guide tube being configured to contain and guide the temperature measuring element to extend out of the shell;

[0030] The guide tube comprises:

[0031] a first guide tube, the first guide tube being disposed in the first housing and the first connecting member, one end of the first guide tube being connected to the connecting seat, and the other end of the first guide tube being at least partially disposed in the first channel;

[0032] a second guide tube, the second guide tube being disposed in the first shell, the first connecting member, the second shell and the second connecting member, one end of the second guide tube being connected to the connecting seat, and the other end of the second guide tube being at least partially disposed in the second channel;

[0033] A third guide tube, wherein the third guide tube is disposed in the first shell, the first connecting member, the second shell, the second connecting member and the third shell, one end of the third guide tube is connected to the connecting seat, and the other end of the third guide tube is at least partially disposed in the third shell.

[0034] According to an embodiment of the present invention, the protective shell further comprises: a heat-conducting component, wherein the heat-conducting component is a cap-shaped structural component made of a material with strong thermal conductivity;

[0035] The heat conducting component comprises:

[0036] a first heat-conducting component, wherein the inner diameter of the first heat-conducting component matches the outer diameter of the first temperature-measuring element, and an end of the first temperature-measuring element away from the connecting seat is at least partially attached to the inner wall of the first heat-conducting component; and the first heat-conducting component is partially inserted into the first channel;

[0037] a second heat-conducting component, wherein the inner diameter of the second heat-conducting component matches the outer diameter of the second temperature-measuring element, and an end of the second temperature-measuring element away from the connecting seat is at least partially attached to the inner wall of the second heat-conducting component; and the second heat-conducting component is partially inserted into the second channel;

[0038] A third heat-conducting component, wherein the inner diameter of the third heat-conducting component matches the outer diameter of the third temperature measuring element, and the end of the third temperature measuring element away from the connecting seat is at least partially attached to the inner wall of the third heat-conducting component; the third heat-conducting component is partially inserted into the end of the third shell away from the second connecting member.

[0039] The present invention further provides a multi-point temperature measuring device, using the above-mentioned protective shell, the multi-point temperature measuring device comprises: a temperature measuring element, the temperature measuring element is arranged in the protective shell;

[0040] One end of the temperature measuring element is arranged in the connecting seat, and the other end of the temperature measuring element is attached to the part to be measured;

[0041] The temperature measuring element comprises a first temperature measuring element, a second temperature measuring element and a third temperature measuring element which are arranged in parallel with each other;

[0042] The first temperature measuring element is arranged in the first guide tube and the first heat conducting component;

[0043] The second temperature measuring element is arranged in the second guide tube and the second heat conducting component;

[0044] The third temperature measuring element is arranged in the third guide tube and the third heat conducting component.

[0045] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0046] 1) In the present invention, by providing the plurality of non-interfering channels, the normal function of the temperature measuring element is ensured, the structure is simple, the disassembly and replacement of a single component is convenient, and the temperature measuring points at different positions can be detected, the detection accuracy is higher, and the thermal response speed is faster;

[0047] 2) In the present invention, by providing the shell composed of multiple components, the length of the shell is adjusted as needed to achieve detection of different temperature measurement points (parts to be measured).

[0048] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0050] Figure 1 This is a schematic diagram of the structure of a protective shell applied to a multi-point temperature measuring device in an embodiment of the present invention;

[0051] Figure 2 The figure is a schematic structural diagram of a multi-point temperature measuring device with a protective shell in an embodiment of the present invention.

[0052] Description of the main components in the figure:

[0053] 1. Shell; 11. Channel; 111. First channel; 112. Second channel; 12. First shell; 13. Second shell; 14. Third shell; 15. First connecting piece; 16. First accommodating groove; 17. Second connecting piece; 18. Second accommodating groove; 2. Connecting seat; 3. Temperature measuring element; 31. First temperature measuring element; 32. Second temperature measuring element; 33. Third temperature measuring element; 4. Guide tube; 41. First guide tube; 42. Second guide tube; 43. Third guide tube; 5. Heat-conducting component; 51. First heat-conducting component; 52. Second heat-conducting component; 53. Third heat-conducting component.

[0054] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0056] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Attached to this application Figure 1 Disclosed is a protective shell for a multi-point temperature measuring device; Figure 2 Disclosed is a multi-point temperature measuring device using a protective shell.

[0059] like Figure 1As shown, the protective shell used for a multi-point temperature measuring device according to the present invention comprises: a shell 1, one end of the shell 1 is connected to a connecting seat 2, and the other end of the shell 1 extends in a direction away from the connecting seat 2;

[0060] Along a direction perpendicular to the extension direction of the shell 1, the cross-sectional area of ​​one end of the shell 1 close to the connecting seat 2 is greater than the cross-sectional area of ​​one end of the shell 1 away from the connecting seat 2;

[0061] The housing 1 is provided with a plurality of holes 11 for the temperature measuring elements 3 to extend out; any two holes 11 among the plurality of holes 11 have different distances from one end away from the connecting seat 2 to the connecting seat 2 .

[0062] In the present invention, by setting the plurality of non-interfering channels 11, the normal function of the temperature measuring element 3 is ensured, the structure is simple, and the disassembly, assembly and replacement of a single component is convenient, so that the temperature measuring points at different positions can be detected, the detection accuracy is higher, and the thermal response speed is faster.

[0063] In a specific implementation of this embodiment, the temperature measuring element 3 is a thermocouple wire.

[0064] Please see attached Figure 1 and attached Figure 2 In a specific implementation of this embodiment, the housing 1 includes:

[0065] A first shell 12, one end of which is connected to the connecting seat 2;

[0066] A second shell 13, one end of the second shell 13 is connected to an end of the first shell 12 away from the connecting seat 2; along a direction perpendicular to the extension direction of the shell 1, the cross-sectional area of ​​the second shell 13 is smaller than the cross-sectional area of ​​the first shell 12;

[0067] A third shell 14 , one end of which is connected to an end of the second shell 13 away from the first shell 12 ; along a direction perpendicular to the extension direction of the shell 1 , a cross-sectional area of ​​the third shell 14 is smaller than a cross-sectional area of ​​the second shell 13 .

[0068] That is, the first shell 12 , the second shell 13 and the third shell 14 are connected in sequence.

[0069] In the present invention, by providing the housing 1 composed of a plurality of components, the length of the housing 1 is adjusted as required to achieve detection of different temperature measurement points (parts to be measured).

[0070] In another specific implementation of this embodiment, the housing 1 further includes a fourth housing and a fifth housing connected to the first housing 12, the second housing 13 and the third housing 14 in sequence;

[0071] The fourth shell and the fifth shell have similar shape features to the second shell 13 and the third shell 14 , which will not be described in detail herein.

[0072] In a specific implementation of this embodiment, the first housing 12 and the connecting seat 2 are detachably connected by a flange (not shown in the figure) connected to each other by bolts.

[0073] In another specific implementation of this embodiment, the first shell 12 and the connecting base 2 are fixedly connected by welding.

[0074] In a specific implementation of this embodiment, the first shell 12, the second shell 13 and the fourth shell 14 are all columnar structural members;

[0075] The columnar structural member may be a cylindrical structural member, a cubic structural member, or a truncated cone structural member.

[0076] In a specific implementation of this embodiment, the third shell 14 and the second connecting member 17, the second connecting member 17 and the second shell 13, the second shell 13 and the first connecting member 15, and the first connecting member 15 and the first shell 12 are all connected by first plugging and then welding.

[0077] In another specific implementation of the present embodiment, the third shell 14 and the second connecting member 17, the second connecting member 17 and the second shell 13, the second shell 13 and the first connecting member 15, and the first connecting member 15 and the first shell 12 are all connected to each other by means of internal and external thread structures (not shown in the figure) arranged at their ends.

[0078] In a specific implementation of this embodiment, along a direction perpendicular to the extension direction of the shell 1, a cross-sectional area of ​​an end of the first shell 12, and / or the second shell 13, and / or the third shell 14 close to the connecting seat 2 is greater than a cross-sectional area of ​​an end away from the connecting seat 2;

[0079] That is, the first shell 12, and / or the second shell 13, and / or the third shell 14 are truncated cone-shaped structures or prism-shaped structures.

[0080] In a specific implementation of this embodiment, the protective shell further includes: a first connecting member 15, wherein the first connecting member 15 is configured to connect the second shell 13 to the first shell 12;

[0081] One end of the first connecting member 15 close to the first shell 12 is at least partially inserted into the first shell 12, and one end of the first connecting member 15 close to the second shell 13 is provided with a first receiving groove 16;

[0082] The second housing 13 is partially inserted into the first receiving groove 16 .

[0083] In the present invention, by providing the first connecting member 15 , a connection position is provided for the first shell 12 and the second shell 13 , thereby ensuring a smooth and stable connection between the first shell 12 and the second shell 13 .

[0084] In a specific implementation of this embodiment, the second housing 13 is a cylindrical structure;

[0085] The first accommodating groove 16 matches the shape of one end of the second shell 13 close to the first connecting member 15 , so as to firmly connect the second shell 13 to the first connecting member 15 .

[0086] In a specific implementation of this embodiment, along a direction perpendicular to the extension direction of the shell 1 , a cross-sectional area of ​​an end of the first connecting member 15 away from the first shell 12 is greater than or equal to a cross-sectional area of ​​the first shell 12 .

[0087] In a specific implementation of this embodiment, along a direction parallel to the extension direction of the housing 1, the first connecting member 15 is a T-shaped structural member in a cross-sectional view;

[0088] The small end of the first connecting member 15 (the small end of the T-shaped structural member) is at least partially inserted into the first housing 12 to fix the first connecting member 15 on the first housing 12;

[0089] Along the direction perpendicular to the extension direction of the shell 1, the projection width of the large end of the first connecting member 15 (the large end of the T-shaped structural member, that is, the end of the first connecting member 15 away from the connecting seat 2) is greater than or equal to the projection width of the first shell 12.

[0090] In the present invention, by providing the first connecting member 15 , the boundary with respect to the first shell 12 is clear, which makes it more convenient to assemble and disassemble.

[0091] In a specific implementation of this embodiment, the protective shell further includes:

[0092] A second connecting member 17, wherein the second connecting member 17 is configured to connect the third housing 14 to the second housing 13;

[0093] One end of the second connecting member 17 close to the second shell 13 is at least partially inserted into the second shell 13, and one end of the second connecting member 17 close to the third shell 14 is provided with a second receiving groove 18;

[0094] The third housing 14 is partially inserted into the second receiving groove 18 .

[0095] In the present invention, the second connecting member 17 is provided to provide a connection position for the second shell 13 and the third shell 14 , thereby ensuring a smooth and firm connection between the second shell 13 and the third shell 14 .

[0096] In a specific implementation of this embodiment, the third housing 14 is a cylindrical structure;

[0097] The second receiving groove 18 matches the shape of one end of the third housing 14 close to the second connecting member 17 , so as to firmly connect the third housing 14 to the second connecting member 17 .

[0098] In a specific implementation of this embodiment, along a direction perpendicular to the extension direction of the shell 1 , a cross-sectional area of ​​an end of the second connecting member 17 away from the second shell 13 is greater than or equal to a cross-sectional area of ​​the second shell 13 .

[0099] In a specific implementation of this embodiment, along a direction parallel to the extension direction of the housing 1, the second connecting member 17 is a T-shaped structural member in a cross-sectional view;

[0100] The small end of the second connecting member 17 (the small end of the T-shaped structural member) is at least partially inserted into the second shell 13 to fix the second connecting member 17 on the second shell 13;

[0101] Along the direction perpendicular to the extension direction of the shell 1, the projection width of the large end of the second connecting member 17 (the large end of the T-shaped structural member, that is, the end of the second connecting member 17 away from the connecting seat 2) is greater than or equal to the projection width of the second shell 13.

[0102] In the present application, by providing the second connecting member 17 , the boundary with respect to the first shell 12 is clear, which makes it more convenient during assembly and disassembly.

[0103] In a specific implementation of the present embodiment, anti-slip washers (or anti-slip gaskets) are provided in the interlayer (the fitting surface where the two components are close to each other) at the connection points (referring to the plug-in scheme) between the first shell 12 and the first connecting member 15, the first connecting member 15 and the second shell 13, the second shell 13 and the second connecting member 17, and the second connecting member 17 and the third shell 14 to further tighten the connection to prevent abnormal falling off of the components.

[0104] It can be understood that, for the anti-skid washer, it can be sleeved on the end of the component; for the anti-skid gasket, it can be adhered to the end of the component.

[0105] In a specific implementation of the present embodiment, the anti-slip gasket is sleeved on one end of the first connecting member 15 close to the first shell 12, the anti-slip gasket is sleeved on one end of the second shell 13 close to the first connecting member 15, the anti-slip gasket is sleeved on one end of the second connecting member 17 close to the second shell 13, and the anti-slip gasket is sleeved on one end of the third shell 14 close to the second connecting member 17.

[0106] In a specific implementation of this embodiment, the anti-slip gasket has a certain length (the length in a direction parallel to the extension direction of the shell 1); for example, the length of the anti-slip gasket is greater than or equal to half of the length of the third shell 14 extending into the second connecting member 17; the same applies to the anti-slip gaskets provided on other components.

[0107] In a specific implementation of this embodiment, a side of the anti-slip gasket away from the component on which it is mounted is provided with an anti-slip protrusion;

[0108] The anti-slip protrusion is a triangular protrusion or a trapezoidal protrusion.

[0109] In the present application, the reliability of the connection between adjacent components is ensured by providing the anti-slip gasket.

[0110] In a specific implementation of this embodiment, the first shell 12, the second shell 13 and the third shell 14 are all hollow columnar structures, and the third shell 14 is connected to the first shell 12 and the second shell 13;

[0111] The temperature measuring element 3 includes a first temperature measuring element 31, a second temperature measuring element 32 and a third temperature measuring element 33 which are arranged in parallel with each other. The first temperature measuring element 31, the second temperature measuring element 32 and the third temperature measuring element 33 are close to one end of the connecting seat 2 and are all arranged in the connecting seat 2.

[0112] The hole 11 includes:

[0113] a first hole 111, the first hole 111 is arranged on the first connecting member 15 and passes through the first connecting member 15; a plurality of first holes 111 are provided, and some of the first holes 111 are connected to the second shell 13; the other end of the first temperature measuring element 31 is arranged in the first hole 111, and a portion of the first temperature measuring element 31 extends out of the shell 1 through the first hole 111;

[0114] The second channel 112 is arranged on the second connecting member 17 and passes through the second connecting member 17; the second channel 112 is connected to the first channel 111; a plurality of second channels 112 are arranged, and some of the second channels 112 are connected to the third shell 14; the other end of the second temperature measuring element 32 is arranged in the second channel 112, and part of the second temperature measuring element 32 extends out of the shell 1 through the second channel 112; the third temperature measuring element 33 passes through the first shell 12, the first connecting member 15, the second shell 13, the second connecting member 17 and the third shell 14, and the other end of the third temperature measuring element 33 partially extends out of the third shell 14 of the shell 1.

[0115] In the present invention, by providing the channel 11 with a plurality of sub-channels, a plurality of temperature measuring elements 3 are arranged to avoid interference or even entanglement between the temperature measuring elements.

[0116] In a specific implementation of this embodiment, three first channels 111 are provided, and two of the three first channels 111 are connected to the second shell 13;

[0117] The first temperature measuring element 31 extends out of the housing 1 from the first channel 111 that is not connected to the second housing 13;

[0118] The second holes 112 are provided with two, and the two second holes 112 are both connected to the first hole 111, and one of the two second holes 112 is connected to the third shell 14, and the third temperature measuring element 33 passes through the third shell 14 from the second hole 112 connected to the third shell 14 and extends out of the shell 1;

[0119] The second temperature measuring element 32 extends out of the housing 1 from the second channel 112 that is not connected to the third housing 14 .

[0120] In a specific implementation of this embodiment, a plurality of first channels 111 are provided, and the plurality of first channels 111 are arranged circumferentially;

[0121] A plurality of the second channels 112 are provided, and the plurality of the second channels 112 are arranged circumferentially.

[0122] Please see attached Figure 1 In a specific implementation of this embodiment, the protective shell further includes: a guide tube 4, the guide tube 4 is configured to contain and guide the temperature measuring element 3 to extend out of the housing 1;

[0123] The guide tube 4 comprises:

[0124] A first guide tube 41, wherein the first guide tube 41 is disposed in the first housing 12 and the first connecting member 15, one end of the first guide tube 41 is connected to the connecting seat 2, and the other end of the first guide tube 41 is at least partially disposed in the first channel 111;

[0125] A second guide tube 42, wherein the second guide tube 42 is disposed in the first housing 12, the first connecting member 15, the second housing 13 and the second connecting member 17, one end of the second guide tube 42 is connected to the connecting seat 2, and the other end of the second guide tube 42 is at least partially disposed in the second channel 112;

[0126] The third guide tube 43 is arranged in the first shell 12, the first connecting member 15, the second shell 13, the second connecting member 17 and the third shell 14, one end of the third guide tube 43 is connected to the connecting seat 2, and the other end of the third guide tube 43 is at least partially arranged in the third shell 14.

[0127] In the present invention, the guide tube 4 is provided to not only guide the temperature measuring element to penetrate, but also isolate adjacent temperature measuring elements to ensure the stability of their respective functions; when one or more temperature measuring elements fail, it is also more convenient to replace components.

[0128] In another specific implementation of this embodiment, the third guide tube 43 is disposed in the first shell 12, the first connecting member 15, the second shell 13 and the second connecting member 17, one end of the third guide tube 43 is connected to the connecting seat 2, and the other end of the third guide tube 43 is at least partially disposed in the second channel 112 of the second connecting member 17;

[0129] The second guide tube 42 and the third guide tube 43 have the same axial length (length in a direction parallel to the extending direction of the housing 1 ).

[0130] In a specific implementation of this embodiment, the axial length of the first guide tube 41 (in a direction parallel to the extension direction of the shell 1) is less than or equal to the distance between the end face of one end of the first connecting member 15 away from the connecting seat 2 and the connecting seat 2.

[0131] In a specific implementation of this embodiment, the axial length (in a direction parallel to the extension direction of the shell 1) of the second guide tube 42 is less than or equal to the distance between the end face of one end of the second connecting member 17 away from the connecting seat 2 and the connecting seat 2.

[0132] In a specific implementation of this embodiment, the axial length of the third guide tube 43 (in a direction parallel to the extension direction of the shell 1) is less than or equal to the distance between the end face of one end of the third shell 14 away from the connecting seat 2 and the connecting seat 2.

[0133] In a specific implementation of this embodiment, the outer diameter of the first guide tube 41 is equal to or smaller than the inner diameter of the first channel 111;

[0134] The outer diameter of the second guide tube 42 is equal to or smaller than the inner diameter of the second channel 112;

[0135] The outer diameter of the third guide tube 43 is equal to or smaller than the hollow inner diameter of the third shell 14 .

[0136] In a specific implementation of this embodiment, the inner diameter of the first channel 111 is equal to the inner diameter of the second channel 112 .

[0137] In a specific implementation of this embodiment, the outer diameters of the first guide tube 41, the second guide tube 42 and the third guide tube 43 are equal;

[0138] The inner diameters of the first guide tube 41, the second guide tube 42 and the third guide tube 43 are equal;

[0139] The first guide tube 41 , the second guide tube 42 and the third guide tube 43 are all cylindrical structures with hollow interiors.

[0140] Please see attached Figure 1 In a specific implementation of this embodiment, the protective shell further includes: a heat-conducting component 5, which is a cap-shaped structural component (a barrel-shaped structural component with one side blocked and one side open) made of a material with strong thermal conductivity;

[0141] The heat conducting component 5 comprises:

[0142] A first heat-conducting component 51, wherein the inner diameter of the first heat-conducting component 51 matches the outer diameter of the first temperature measuring element 31, and the end of the first temperature measuring element 31 away from the connecting seat 2 is at least partially (at least partially means at least a part or all) attached to the inner wall of the first heat-conducting component 51; the first heat-conducting component 51 is partially inserted into the first channel 111;

[0143] A second heat-conducting component 52, wherein the inner diameter of the second heat-conducting component 52 matches the outer diameter of the second temperature-measuring element 32, and an end of the second temperature-measuring element 32 away from the connecting seat 2 is at least partially attached to the inner wall of the second heat-conducting component 52; the second heat-conducting component 52 is partially inserted into the second channel 112;

[0144] A third heat-conducting component 53, the inner diameter of which matches the outer diameter of the third temperature measuring element 33, and the end of the third temperature measuring element 33 away from the connecting seat 2 is at least partially attached to the inner wall of the third heat-conducting component 53; the third heat-conducting component 53 is partially inserted into the end of the third shell 14 away from the second connecting member 17.

[0145] In the present invention, the heat conducting component 5 is provided, the heat conducting component 5 is attached to the temperature measuring element 3, and the heat conducting component 5 contacts the temperature measuring point to transfer the temperature to the temperature measuring element 3, thereby ensuring the rapidity of temperature transfer.

[0146] In a specific implementation of this embodiment, the heat-conducting component 5 is a structural member made of metal material, such as copper, aluminum, silver, platinum-rhodium alloy, etc.

[0147] In a specific implementation of this embodiment, the first heat-conducting component 51 is partially inserted into the first hole 111 and sleeved on the first guide tube 41; another part of the first heat-conducting component 51 (the end away from the first connector 15) extends out of the first hole 111;

[0148] The second heat-conducting component 52 is partially inserted into the second hole 112 and sleeved on the second guide tube 42 ; the other part of the second heat-conducting component 52 (the end away from the second connecting piece 17 ) extends out of the second hole 112 .

[0149] In a specific implementation of this embodiment, the third heat-conducting component 53 is partially inserted into the third shell 14 and sleeved on the third guide tube 43; the other part of the third heat-conducting component 53 (one end away from the third shell 14) extends out of the third shell 14.

[0150] In a specific implementation of this embodiment, the inner diameter of the first channel 111 and the second channel 112 at one end close to the connecting seat 2 is less than or equal to the inner diameter of the first channel 111 and the second channel 112 at one end away from the connecting seat 2.

[0151] It should be pointed out that a certain component (component A) described in the present application is sleeved on another component (component B). The design can also be that component B is sleeved on component A (the difference between the inner and outer side settings). For example: the above description points out that the first heat-conducting component 51 is sleeved on the first guide tube 41, or the first heat-conducting component 51 can be inserted into the first guide tube 41 (the first guide tube 41 is sleeved on the first heat-conducting component 51).

[0152] In another specific implementation of the present embodiment, the outer diameter of the first heat-conducting component 51 is equal to the outer diameter of the first guide tube 41, and the axis of the first heat-conducting component 51 coincides with the axis of the first guide tube 41, and the end of the first heat-conducting component 51 extending into the first channel 111 abuts against the end of the first guide tube 41 away from the connecting seat 2.

[0153] In a specific implementation of this embodiment, the protective shell also includes: an insulating ring (not shown in the figure), which is arranged between the heat-conducting component 5 and the guide tube 4 (regardless of whether the ends of the two are sleeved or the ends of the two are in conflict).

[0154] In the present invention, by providing the heat-insulating sleeve ring, the heat guided by the heat-conducting component 5 is fully transferred, thereby reducing unnecessary waste of heat. On the basis of ensuring the thermal response speed, the accuracy of temperature measurement is ensured.

[0155] Please see attached Figure 2 The present invention also provides a multi-point temperature measuring device, which is applied with the above-mentioned protective shell, and the multi-point temperature measuring device comprises: a temperature measuring element 3, and the temperature measuring element 3 is arranged in the protective shell;

[0156] One end of the temperature measuring element 3 is arranged in the connecting seat 2, and the other end of the temperature measuring element 3 is attached to the part to be measured;

[0157] The temperature measuring element 3 includes a first temperature measuring element 31, a second temperature measuring element 32 and a third temperature measuring element 33 which are arranged in parallel with each other;

[0158] The first temperature measuring element 31 is disposed in the first guide tube 41 and the first heat conducting component 51;

[0159] The second temperature measuring element 32 is disposed in the second guide tube 42 and the second heat conducting component 52;

[0160] The third temperature measuring element 33 is disposed in the third guide tube 43 and the third heat conducting component 53 .

[0161] In the present invention, by providing a plurality of the temperature measuring elements, simultaneous detection of temperature measuring points (temperature measuring parts) at different positions is achieved, and the plurality of temperature detections will not interfere with each other.

[0162] In a specific implementation of this embodiment, the length of the first temperature measuring element 31 is greater than the distance between the end surface of the first connecting member 15 away from the connecting seat 2 and the connecting seat 2;

[0163] The length of the second temperature measuring element 32 is greater than the distance between the end surface of the second connecting member 17 away from the connecting seat 2 and the connecting seat 2;

[0164] The length of the third temperature measuring element 33 is greater than the distance between the end surface of the third housing 14 away from the connecting seat 2 and the connecting seat 2 .

[0165] The multi-point temperature measurement system provided by the present invention is applied to achieve high-precision and fast-response temperature measurement. When the temperature step is τ0.9, the thermal response time is less than 50S, and when the temperature step is τ0.632, the thermal response time is less than 30S, which meets the temperature measurement requirements of special working conditions.

[0166] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A protective shell for a multi-point temperature measuring device, characterized in that: include: A shell (1), one end of the shell (1) being connected to a connecting seat (2), and the other end of the shell (1) extending in a direction away from the connecting seat (2); Along a direction perpendicular to the extension direction of the shell (1), the cross-sectional area of ​​an end of the shell (1) close to the connecting seat (2) is greater than the cross-sectional area of ​​an end of the shell (1) away from the connecting seat (2); The shell (1) is provided with a plurality of holes (11) through which the temperature measuring elements (3) extend; any two holes (11) among the plurality of holes (11) are at different distances from one end of the connection seat (2) away from the connection seat (2).

2. The protective shell for a multi-point temperature measuring device according to claim 1, characterized in that: The housing (1) comprises: A first shell (12), one end of the first shell (12) being connected to the connecting seat (2); a second shell (13), one end of the second shell (13) being connected to an end of the first shell (12) away from the connecting seat (2); along a direction perpendicular to the extension direction of the shell (1), a cross-sectional area of ​​the second shell (13) is smaller than a cross-sectional area of ​​the first shell (12); A third shell (14), one end of the third shell (14) being connected to an end of the second shell (13) away from the first shell (12); along a direction perpendicular to the extension direction of the shell (1), the cross-sectional area of ​​the third shell (14) is smaller than the cross-sectional area of ​​the second shell (13).

3. The protective shell for a multi-point temperature measuring device according to claim 2, characterized in that: The protective shell further comprises: a first connecting member (15), wherein the first connecting member (15) is configured to connect the second shell (13) to the first shell (12); An end of the first connecting member (15) close to the first shell (12) is at least partially inserted into the first shell (12), and an end of the first connecting member (15) close to the second shell (13) is provided with a first receiving groove (16); The second housing (13) is partially inserted into the first receiving groove (16).

4. The protective shell for a multi-point temperature measuring device according to claim 3, characterized in that: Along a direction perpendicular to the extension direction of the shell (1), the cross-sectional area of ​​an end of the first connecting member (15) away from the first shell (12) is greater than or equal to the cross-sectional area of ​​the first shell (12).

5. The protective shell for a multi-point temperature measuring device according to claim 3, characterized in that: The protective shell also includes: a second connecting member (17), wherein the second connecting member (17) is configured to connect the third shell (14) to the second shell (13); An end of the second connecting member (17) close to the second shell (13) is at least partially inserted into the second shell (13), and an end of the second connecting member (17) close to the third shell (14) is provided with a second receiving groove (18); The third housing (14) is partially inserted into the second receiving groove (18).

6. The protective shell for a multi-point temperature measuring device according to claim 5, characterized in that: Along a direction perpendicular to the extension direction of the shell (1), the cross-sectional area of ​​an end of the second connecting member (17) away from the second shell (13) is greater than or equal to the cross-sectional area of ​​the second shell (13).

7. The protective shell for a multi-point temperature measuring device according to claim 5, characterized in that: The first shell (12), the second shell (13) and the third shell (14) are all hollow columnar structures, and the third shell (14) is connected to the first shell (12) and the second shell (13); The temperature measuring element (3) comprises a first temperature measuring element (31), a second temperature measuring element (32) and a third temperature measuring element (33) which are arranged in parallel with each other, wherein the first temperature measuring element (31), the second temperature measuring element (32) and the third temperature measuring element (33) are arranged in the connection seat (2) at one end close to the connection seat (2); The hole (11) comprises: a first hole (111), wherein the first hole (111) is arranged on the first connecting member (15) and passes through the first connecting member (15); a plurality of the first holes (111) are arranged, and a portion of the first holes (111) among the plurality of the first holes (111) is connected to the second shell (13); the other end of the first temperature measuring element (31) is arranged in the first hole (111), and a portion of the first temperature measuring element (31) extends out of the shell (1) through the first hole (111); A second hole (112), wherein the second hole (112) is arranged on the second connecting member (17) and passes through the second connecting member (17); the second hole (112) is connected to the first hole (111); a plurality of second holes (112) are arranged, and a portion of the second holes (112) among the plurality of second holes (112) is connected to the third shell (13); the other end of the second temperature measuring element (32) is arranged on the second hole (112), and a portion of the second temperature measuring element (32) extends out of the shell (1) through the second hole (112); the third temperature measuring element (33) passes through the first shell (12), the first connecting member (15), the second shell (13), the second connecting member (17) and the third shell (14), and the other end portion of the third temperature measuring element (33) extends out of the third shell (14) of the shell (1).

8. The protective shell for a multi-point temperature measuring device according to claim 7, characterized in that: The protective shell further comprises: a guide tube (4), wherein the guide tube (4) is configured to contain and guide the temperature measuring element (3) to extend out of the shell (1); The guide tube (4) comprises: a first guide tube (41), the first guide tube (41) being arranged in the first shell (12) and the first connecting member (15), one end of the first guide tube (41) being connected to the connecting seat (2), and the other end of the first guide tube (41) being at least partially arranged in the first channel (111); a second guide tube (42), the second guide tube (42) being arranged in the first shell (12), the first connecting member (15), the second shell (13) and the second connecting member (17), one end of the second guide tube (42) being connected to the connecting seat (2), and the other end of the second guide tube (42) being at least partially arranged in the second channel (112); A third guide tube (43), the third guide tube (43) is arranged in the first shell (12), the first connecting member (15), the second shell (13), the second connecting member (17) and the third shell (14), one end of the third guide tube (43) is connected to the connecting seat (2), and the other end of the third guide tube (43) is at least partially arranged in the third shell (14).

9. A protective shell for a multi-point temperature measuring device according to claim 7 or 8, characterized in that: The protective shell further comprises: a heat-conducting component (5), wherein the heat-conducting component (5) is a cap-shaped structural component made of a material with strong heat conductivity; The heat conducting component (5) comprises: a first heat-conducting component (51), wherein the inner diameter of the first heat-conducting component (51) matches the outer diameter of the first temperature measuring element (31), and an end of the first temperature measuring element (31) away from the connecting seat (2) is at least partially attached to the inner wall of the first heat-conducting component (51); and the first heat-conducting component (51) is partially inserted into the first hole (111); a second heat-conducting component (52), wherein the inner diameter of the second heat-conducting component (52) matches the outer diameter of the second temperature-measuring element (32), and an end of the second temperature-measuring element (32) away from the connecting seat (2) is at least partially attached to the inner wall of the second heat-conducting component (52); and the second heat-conducting component (52) is partially inserted into the second hole (112); A third heat-conducting component (53), wherein the inner diameter of the third heat-conducting component (53) matches the outer diameter of the third temperature measuring element (33), and the end of the third temperature measuring element (33) away from the connecting seat (2) is at least partially attached to the inner wall of the third heat-conducting component (53); the third heat-conducting component (53) is partially inserted into the end of the third shell (14) away from the second connecting member (17).

10. A multi-point temperature measuring device, characterized in that: The protective shell as claimed in any one of claims 1 to 9 is used, wherein the multi-point temperature measuring device comprises: a temperature measuring element (3), wherein the temperature measuring element (3) is arranged in the protective shell; One end of the temperature measuring element (3) is arranged in the connecting seat (2), and the other end of the temperature measuring element (3) is attached to the part to be measured; The temperature measuring element (3) comprises a first temperature measuring element (31), a second temperature measuring element (32) and a third temperature measuring element (33) which are arranged in parallel with each other; The first temperature measuring element (31) is arranged in the first guide tube (41) and the first heat conducting component (51); The second temperature measuring element (32) is arranged in the second guide tube (42) and the second heat conducting component (52); The third temperature measuring element (33) is arranged in the third guide tube (43) and the third heat conducting component (53).

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