Heating value measuring device of electric heater

Abstract

The invention belongs to the technical field of electric heaters, and particularly relates to an electric heater calorific value measuring device which comprises a device body, an installation mechanism is arranged in the device body, a limiting mechanism is arranged at one end of the installation mechanism, and an extension mechanism is arranged at the other end of the installation mechanism. Measuring mechanisms are arranged on the inner walls of the mounting mechanism and the extension mechanism; the problem to be solved in the scheme is that the calorific value of the electric heater is generally measured through thermocouple attachment, the thermocouple is damaged by high temperature in measurement, and the heat change cannot be measured in real time for a long time; according to the solution, the shell and the mounting flange are mounted on the inlet and the outlet of the electric heater, the temperature and heat of passing water are detected through the measuring mechanism in the shell, the heat productivity is detected through the temperature and heat difference of the inlet and the outlet, and disassembly and assembly are convenient and rapid through the mounting flange; therefore, the measuring mechanism can be conveniently dismounted, cleaned, overhauled or replaced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric heaters, and in particular relates to a calorific value measuring device of an electric heater. Background Art

[0002] Electric heater is an electric heating device; it is used to increase the temperature, keep warm and heat the flowing liquid and gaseous medium; when the heating medium passes through the heating chamber of the electric heater under pressure, the huge heat generated by the electric heating element is evenly taken away by the principle of fluid thermodynamics, so that the temperature of the heated medium reaches the user's process requirements; At present, when an electric heater is in use, the calorific value is generally measured by bonding a thermocouple. High temperature will damage the thermocouple, and the heat change cannot be measured in real time for a long time. During measurement, only a part of the position can be measured, which is not accurate enough. In addition, it is difficult to disassemble and repair the electric heater when it is installed inside. Therefore, it is necessary to design a calorific value measuring device for an electric heater to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a device for measuring the calorific value of an electric heater to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for measuring the calorific value of an electric heater, comprising a device body, a mounting mechanism is arranged inside the device body, a limiting mechanism is arranged at one end of the mounting mechanism, an extension mechanism is arranged at the other end of the mounting mechanism, a measuring mechanism is arranged on the inner wall of the mounting mechanism and the extension mechanism, a guide mechanism is arranged on the inner side of the mounting mechanism, and a sealing mechanism is arranged on the outer side of the mounting mechanism and the extension mechanism; The device body includes a shell and a mounting flange installed at one end of the shell, the surface of the shell is provided with a flange fixing hole, the mounting flange is fixed to the shell by mounting bolts, and a sealing gasket is provided at the connection between the shell and the mounting flange, and the mounting flange is pressed on one side of the limiting mechanism; The outer shell comprises a protective shell, an inner lining shell and reinforcing ribs installed between the protective shell and the inner lining shell, the surface of the protective shell is provided with reinforcing ribs, the protective shell and the inner lining shell are filled with foamed cement, and the reinforcing ribs are located inside the foamed cement; The mounting mechanism comprises a positioning seat, the positioning seat is engaged with the inner side of one end of the shell, the limiting mechanism is pressed on one end of the positioning seat, a heat-insulating inner core is arranged inside the positioning seat, and the measuring mechanism and the guiding mechanism are mounted on the inner side of the positioning seat; The extension mechanism comprises an extension seat, one end of which is provided with a mounting screw groove, the other end of which and one end of the positioning seat are both provided with mounting protrusions, and the extension seats and the positioning seat are screwed together through the mounting screw grooves and the mounting protrusions; The measuring mechanism includes a thermal insulation seat, a thin film temperature sensor is installed inside the thermal insulation seat, a heat conducting plate is arranged on the surface of the thermal insulation seat, a heat conducting graphite film is arranged on the inner surface of the heat conducting plate, a heat conducting fiber layer is arranged on the inner side of the heat conducting graphite film, and the thin film temperature sensor is attached to the heat conducting fiber layer.

[0005] Preferably, the limiting mechanism comprises a limiting seat, a heat-insulating inner core is arranged inside the limiting seat, and a positioning protrusion is arranged at one end of the limiting seat.

[0006] Preferably, a positioning groove is provided on the inner side of one end of the positioning seat, one end of the positioning protrusion is inserted into the inner side of the positioning groove, a guide groove is provided on the inner side of the limit seat, and the guide groove is connected to the inner side of the positioning seat.

[0007] Preferably, a heat insulating ring is provided inside the extension seat, and a mounting groove is provided on the inner wall of the extension seat.

[0008] Preferably, the measuring mechanism is installed on the inner side of the mounting groove, and one end of the mounting groove is connected to the position of the mounting screw groove.

[0009] Preferably, the shape of the heat conducting plate and the shape of the heat insulating seat are both set to be arc-shaped, and a heat insulating baffle is arranged inside the heat insulating seat, and the heat insulating baffle is supported on one side of the thin film temperature sensor.

[0010] Preferably, the sealing mechanism comprises an outer protective ring and an inner sealing ring installed in the outer protective ring, a sealing cavity is provided between the outer protective ring and the inner sealing ring, and a supporting elastic pad is provided inside the sealing cavity.

[0011] Preferably, the guide mechanism comprises a mounting frame installed in the mounting mechanism and a guide column installed on one side of the mounting frame, and a guide sheet is provided on the surface of the guide column.

[0012] Preferably, an auxiliary support frame is provided at one end of the guide column, and the auxiliary support frame is engaged with the inner side of one end of the extension seat.

[0013] Preferably, the guide piece is spirally mounted on the surface of the guide column, both ends of the guide column are respectively provided with mounting columns and connecting screw grooves, and one end of the mounting column is mounted in the mounting frame and fixed by a reinforcing bolt.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The designed device body and measuring mechanism are installed on the inlet and outlet of the electric heater through the shell and the mounting flange when in use. The temperature and heat of the water passing through are detected by the measuring mechanism in the shell, and the heat generation is detected by the temperature and heat difference between the inlet and outlet. The mounting flange is convenient for quick disassembly and assembly, thereby facilitating disassembly, cleaning, maintenance or replacement of the measuring mechanism.

[0015] 2. Through the designed limiting mechanism and installation mechanism, the measuring mechanism can be quickly installed through the installation mechanism when in use, and the installation mechanism can be tightly pressed and positioned through the limiting mechanism, thereby ensuring that the installation mechanism and the extension mechanism are more stable during installation and use.

[0016] 3. Through the designed guide mechanism, it is installed in the installation mechanism through the mounting frame when in use, and the passing medium is guided by the guide column and the guide sheet, so that the measuring mechanism can fully measure the medium temperature, and the guide column can be conveniently connected in series through the mounting column and the connecting screw groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the limiting structure of the present invention; Figure 4 It is a schematic diagram of the extended structure of the present invention; Figure 5 It is a schematic diagram of the measurement structure of the present invention; Figure 6 It is a schematic diagram of the sealing structure of the present invention; Figure 7 It is a schematic diagram of the guiding structure of the present invention; Figure 8 It is a schematic diagram of the shell structure of the present invention; In the figure: 1. device body; 11. shell; 111. protective shell; 112. lining shell; 113. reinforcing ribs; 114. foamed cement; 115. reinforcing ribs; 12. mounting flange; 13. flange fixing hole; 14. mounting bolts; 15. sealing gasket; 2. limiting mechanism; 21. limiting seat; 22. heat insulation inner core; 23. positioning protrusion; 24. guide groove; 3. mounting mechanism; 31. positioning groove; 32. positioning seat; 33. heat insulation inner core; 4. extension mechanism; 41. extension seat; 42. mounting screw groove; 4 3. Mounting protrusion; 44. Insulation ring; 45. Mounting groove; 5. Measuring mechanism; 51. Insulation seat; 52. Insulation partition; 53. Thin film temperature sensor; 54. Thermal conductive fiber layer; 55. Thermal conductive graphite film; 56. Thermal conductive plate; 6. Sealing mechanism; 61. Outer protective ring; 62. Inner sealing ring; 63. Sealing cavity; 64. Support elastic pad; 7. Guide mechanism; 71. Mounting frame; 72. Guide column; 73. Guide sheet; 74. Mounting column; 75. Reinforcement bolt; 76. Connecting screw groove; 77. Auxiliary support frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1 to 8 The present invention provides a technical solution: a calorific value measuring device of an electric heater, comprising a device body 1, a mounting mechanism 3 is arranged inside the device body 1, a limiting mechanism 2 is arranged at one end of the mounting mechanism 3, an extension mechanism 4 is arranged at the other end of the mounting mechanism 3, a measuring mechanism 5 is arranged on the inner wall of the mounting mechanism 3 and the extension mechanism 4, a guiding mechanism 7 is arranged on the inner side of the mounting mechanism 3, and a sealing mechanism 6 is arranged on the outer side of the mounting mechanism 3 and the extension mechanism 4; The device body 1 includes a shell 11 and a mounting flange 12 installed at one end of the shell 11. The surface of the shell 11 is provided with a flange fixing hole 13. The mounting flange 12 is fixed to the shell 11 by mounting bolts 14. A sealing gasket 15 is provided at the connection between the shell 11 and the mounting flange 12. The mounting flange 12 is pressed on one side of the limiting mechanism 2, which is convenient for installation and use during use. During subsequent maintenance, the mounting flange 12 can be disassembled and assembled to the internal limiting mechanism 2, the mounting mechanism 3 and the extension mechanism 4; the shell 11 includes a protective shell 111, an inner liner shell 112 and a flange 13 installed on the protective shell 111. The reinforcing ribs 115 between the protective shell 111 and the inner lining shell 112, the surface of the protective shell 111 is provided with reinforcing ribs 113, the protective shell 111 and the inner lining shell 112 are filled with foamed cement 114, and the reinforcing ribs 115 are located inside the foamed cement 114; the installation mechanism 3 includes a positioning seat 32, the positioning seat 32 is engaged with the inner side of one end of the outer shell 11, the limiting mechanism 2 is pressed on one end of the positioning seat 32, and the interior of the positioning seat 32 is provided with an insulating core 33, the measuring mechanism 5 and the guiding mechanism 7 are installed on the inner side of the positioning seat 32, which is convenient for disassembly, inspection or replacement of the measuring mechanism 5 and the guiding mechanism 7 during use.

[0020] For further information, see Figures 1 to 7 The extension mechanism 4 includes an extension seat 41, one end of the extension seat 41 is provided with a mounting screw groove 42, the other end of the mounting screw groove 42 and one end of the positioning seat 32 are both provided with a mounting protrusion 43, the extension seats 41 and the extension seat 41 and the positioning seat 32 are screwed together through the mounting screw groove 42 and the mounting protrusion 43, when in use, the mounting protrusion 43 and the mounting screw groove 42 are screwed together to install the extension seat 41, and multiple measuring mechanisms 5 are installed, the extension seat 41 is provided with a heat insulation ring 44 inside, the inner wall of the extension seat 41 is provided with a mounting groove 45, the measuring mechanism 5 is installed on the inner side of the mounting groove 45, and one end of the mounting groove 45 is connected with the position of the mounting screw groove 42; the sealing mechanism 6 includes an outer protective ring 61 and an inner sealing ring 62 installed in the outer protective ring 61, a sealing cavity 63 is provided between the outer protective ring 61 and the inner sealing ring 62, and a supporting elastic pad 64 is provided inside the sealing cavity 63, which is convenient for sealing the outer sides of the positioning seat 32 and the extension seat 41 when in use.

[0021] For further information, see Figures 1 to 8The measuring mechanism 5 includes a heat-insulating seat 51, a thin-film temperature sensor 53 is installed inside the heat-insulating seat 51, a heat-conducting plate 56 is arranged on the surface of the heat-insulating seat 51, a heat-conducting graphite film 55 is arranged on the inner surface of the heat-conducting plate 56, a heat-conducting fiber layer 54 is arranged on the inner side of the heat-conducting graphite film 55, and the thin-film temperature sensor 53 is attached to the heat-conducting fiber layer 54. When in use, the heat-conducting graphite film 55 and the heat-conducting fiber layer 54 facilitate the thin-film temperature sensor 53 to quickly and fully sense heat, and reduce the phenomenon of damage caused by direct contact. The shape of the heat-conducting plate 56 and the shape of the heat-insulating seat 51 are both set to be arc-shaped, and a heat-insulating baffle 52 is arranged inside the heat-insulating seat 51, and the heat-insulating baffle 52 is supported on one side of the thin-film temperature sensor 53.

[0022] From the above description, it can be seen that the present invention has the following beneficial effects: when in use, it is installed on the inlet and outlet of the electric heater through the outer shell 11 and the mounting flange 12, the temperature and heat of the passing water are detected by the measuring mechanism 5 in the outer shell 11, the heat generation is detected by the temperature and heat difference between the inlet and outlet, and the mounting flange 12 is used to facilitate quick and easy disassembly and assembly, thereby facilitating the disassembly and assembly, cleaning, maintenance or replacement of the measuring mechanism 5.

[0023] Example 2: Please refer to Figures 1 to 8 As shown, on the basis of embodiment 1, the present invention provides a technical solution: the limiting mechanism 2 includes a limiting seat 21, an insulating inner core 22 is arranged inside the limiting seat 21, a positioning protrusion 23 is arranged at one end of the limiting seat 21, and the position of the mounting mechanism 3 is positioned and limited by the positioning protrusion 23 when in use, a positioning groove 31 is arranged on the inner side of one end of the positioning seat 32, one end of the positioning protrusion 23 is inserted into the inner side of the positioning groove 31, a guide groove 24 is arranged on the inner side of the limiting seat 21, and the guide groove 24 is connected with the inner side of the positioning seat 32, so that it is convenient to be snap-fitted and installed inside the shell 11 when in use.

[0024] By adopting the limiting mechanism 2 and the mounting mechanism 3 of the above technical solution, the measuring mechanism 5 is quickly installed through the mounting mechanism 3 when in use, and the mounting mechanism 3 is pressed and positioned through the limiting mechanism 2, thereby ensuring that the mounting mechanism 3 and the extension mechanism 4 are more stable when installed and used.

[0025] For further information, see Figures 1 to 8The guide mechanism 7 includes a mounting frame 71 installed in the mounting mechanism 3 and a guide column 72 installed on one side of the mounting frame 71. A guide piece 73 is provided on the surface of the guide column 72. The guide piece 73 is spirally installed on the surface of the guide column 72. When the heated medium flows through, it is guided by the guide piece 73 on the guide column 72, which facilitates the measuring mechanism 5 to accurately measure the medium temperature. An auxiliary support frame 77 is provided at one end of the guide column 72. The auxiliary support frame 77 is engaged with the inner side of one end of the extension seat 41 to ensure that the guide column 72 is installed and used more stably. The two ends of the guide column 72 are respectively provided with a mounting column 74 and a connecting screw groove 76. One end of the mounting column 74 is installed in the mounting frame 71 and fixed by a reinforcing bolt 75. When in use, it is convenient to extend the length of the mounting column 74 by screwing the mounting column 74 and the connecting screw groove 76 as needed.

[0026] The guide mechanism 7 using the above technical solution is installed in the installation mechanism 3 through the installation frame 71 when in use, and guides the passing medium through the guide column 72 and the guide sheet 73, so as to facilitate the measuring mechanism 5 to fully measure the medium temperature, and the guide column 72 is conveniently connected in series through the installation column 74 and the connecting screw groove 76.

[0027] The working principle and use process of the present invention are as follows: when in use, the sealing mechanism 6 is sleeved on the outside of the mounting mechanism 3, and according to the needs of the electric heater, a corresponding number of extension mechanisms 4 are installed on the mounting mechanism 3. When installing, the mounting screw groove 42 is screwed on the mounting protrusion 43 for serial installation. At the same time, the length of the guide column 72 and the guide sheet 73 can be extended to a certain extent by screwing the connecting screw groove 76 and the mounting column 74, so that it is convenient for the measuring mechanism 5 on the mounting mechanism 3 and the extension mechanism 4 to fully monitor the temperature of the medium flowing through. When the medium passes through, the heat conduction effect of the heat conducting plate 56, the heat conducting graphite film 55 and the heat conducting fiber layer 54 accelerates the heat conduction to the thin film temperature sensor 53, reducing the damage caused by direct contact, and the inlet and outlet of the electric heater are both installed with a shell 11, so that it is convenient to fully and accurately measure the heat generation of the electric heater within a period of time. When the surface of the measuring mechanism 5 needs to be cleaned or replaced during long-term use, it is only necessary to remove the mounting flange 12 and pull out the limit mechanism 2, the mounting mechanism 3 and the extension mechanism 4.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for measuring the calorific value of an electric heater, characterized in that: The device comprises a device body (1), wherein a mounting mechanism (3) is arranged inside the device body (1), a limiting mechanism (2) is arranged at one end of the mounting mechanism (3), an extension mechanism (4) is arranged at the other end of the mounting mechanism (3), a measuring mechanism (5) is arranged on the inner walls of the mounting mechanism (3) and the extension mechanism (4), a guiding mechanism (7) is arranged on the inner side of the mounting mechanism (3), and a sealing mechanism (6) is arranged on the outer sides of the mounting mechanism (3) and the extension mechanism (4); The device body (1) comprises a housing (11) and a mounting flange (12) mounted on one end of the housing (11); a flange fixing hole (13) is provided on the surface of the housing (11); the mounting flange (12) is fixed to the housing (11) by mounting bolts (14); a sealing gasket (15) is provided at the connection between the housing (11) and the mounting flange (12); and the mounting flange (12) is pressed against one side of the limiting mechanism (2); The outer shell (11) comprises a protective shell (111), an inner lining shell (112), and a reinforcing rib (115) installed between the protective shell (111) and the inner lining shell (112); a reinforcing rib (113) is provided on the surface of the protective shell (111); foamed cement (114) is filled between the protective shell (111) and the inner lining shell (112); and the reinforcing rib (115) is located inside the foamed cement (114); The mounting mechanism (3) comprises a positioning seat (32), the positioning seat (32) being engaged with the inner side of one end of the outer shell (11), the limiting mechanism (2) being pressed against one end of the positioning seat (32), a heat-insulating inner core (33) being arranged inside the positioning seat (32), and the measuring mechanism (5) and the guiding mechanism (7) being mounted on the inner side of the positioning seat (32); The extension mechanism (4) comprises an extension seat (41), one end of the extension seat (41) is provided with a mounting screw groove (42), the other end of the mounting screw groove (42) and one end of the positioning seat (32) are both provided with a mounting protrusion (43), and the extension seat (41) and the extension seat (41) and the positioning seat (32) are screwed together through the mounting screw groove (42) and the mounting protrusion (43); The measuring mechanism (5) comprises a heat insulating seat (51), a thin film temperature sensor (53) is installed inside the heat insulating seat (51), a heat conducting plate (56) is arranged on the surface of the heat insulating seat (51), a heat conducting graphite film (55) is arranged on the inner surface of the heat conducting plate (56), a heat conducting fiber layer (54) is arranged on the inner side of the heat conducting graphite film (55), and the thin film temperature sensor (53) is attached to the heat conducting fiber layer (54).

2. The calorific value measuring device of an electric heater according to claim 1, characterized in that: The limiting mechanism (2) comprises a limiting seat (21), a heat insulating inner core (22) is arranged inside the limiting seat (21), and a positioning protrusion (23) is arranged at one end of the limiting seat (21).

3. The calorific value measuring device of an electric heater according to claim 2, characterized in that: A positioning groove (31) is provided on the inner side of one end of the positioning seat (32), one end of the positioning protrusion (23) is inserted into the inner side of the positioning groove (31), a guide groove (24) is provided on the inner side of the limit seat (21), and the guide groove (24) is communicated with the inner side of the positioning seat (32).

4. The calorific value measuring device of an electric heater according to claim 1, characterized in that: A heat insulation ring (44) is provided inside the extension seat (41), and a mounting groove (45) is provided on the inner wall of the extension seat (41).

5. The calorific value measuring device of an electric heater according to claim 4, characterized in that: The measuring mechanism (5) is installed on the inner side of the installation groove (45), and one end of the installation groove (45) is connected to the position of the installation screw groove (42).

6. The calorific value measuring device of an electric heater according to claim 1, characterized in that: The shape of the heat conducting plate (56) and the shape of the heat insulating seat (51) are both arranged to be arc-shaped, and a heat insulating baffle (52) is arranged inside the heat insulating seat (51), and the heat insulating baffle (52) is supported on one side of the thin film temperature sensor (53).

7. The calorific value measuring device of an electric heater according to claim 1, characterized in that: The sealing mechanism (6) comprises an outer protective ring (61) and an inner sealing ring (62) installed inside the outer protective ring (61), a sealing cavity (63) is provided between the outer protective ring (61) and the inner sealing ring (62), and a supporting elastic pad (64) is provided inside the sealing cavity (63).

8. The calorific value measuring device of an electric heater according to claim 1, characterized in that: The guide mechanism (7) comprises a mounting frame (71) mounted in the mounting mechanism (3) and a guide column (72) mounted on one side of the mounting frame (71), wherein a guide piece (73) is provided on the surface of the guide column (72).

9. The calorific value measuring device of an electric heater according to claim 8, characterized in that: An auxiliary support frame (77) is provided at one end of the guide column (72), and the auxiliary support frame (77) is engaged with the inner side of one end of the extension seat (41).

10. The calorific value measuring device of an electric heater according to claim 8, characterized in that: The guide piece (73) is spirally mounted on the surface of the guide column (72); both ends of the guide column (72) are respectively provided with a mounting column (74) and a connecting screw groove (76); one end of the mounting column (74) is mounted in the mounting frame (71) and fixed by a reinforcing bolt (75).

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