Evaporation boat capable of measuring temperature and evaporation boat temperature adjusting system

Abstract

The utility model discloses an evaporation boat capable of measuring temperature and an evaporation boat temperature adjusting system, and relates to the technical field of coating, the evaporation boat capable of measuring temperature comprises an evaporation boat body, an insulation connecting piece and a temperature measuring device; the insulating connecting piece is made of an insulating heat-conducting material and is in contact connection with the evaporation boat body; the temperature measuring device is used for measuring the temperature of the evaporation boat body and is provided with a thermosensitive element which is in contact connection with the insulating connecting piece; according to the technical scheme, the insulating connecting piece enables the thermosensitive element not to be in direct contact with the evaporation boat body, meanwhile, the temperature measuring device can measure the temperature of the evaporation boat body, and the temperature measuring device of the structural form is long in service life, small in environmental influence and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, and particularly relates to a temperature-measurable evaporation boat and an evaporation boat temperature regulation system. Background Art

[0002] An evaporation boat is a container for heating solids and liquids, and is widely used in the chemical industry. The evaporation boat is placed on a heating electrode, so that the raw materials contained in the boat body are heated to melt and evaporate. The existing evaporation boat only serves as a container for heating raw materials and lacks a temperature measuring device. During the process of adding raw materials to the evaporation boat and heating, the staff cannot confirm the temperature of the evaporation boat and can only roughly estimate by observing the state of the raw materials, and thus cannot accurately control the feeding.

[0003] The related technology uses an infrared temperature measurement method. However, during the evaporation process of the evaporation boat, its environment is often filled with metal vapor, which easily covers the lens of the thermometer with a film, thus losing the temperature measurement ability.

[0004] Therefore, how to measure the temperature of the evaporation boat for a long time has become an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] The main purpose of the utility model is to propose a temperature-measurable evaporation boat and an evaporation boat temperature regulation system, aiming to be able to measure the temperature of the evaporation boat for a long time.

[0006] To achieve the above purpose, the temperature-measurable evaporation boat proposed by the utility model includes: an evaporation boat body, an insulating connector, and a temperature measuring device; the insulating connector is made of an insulating and heat-conducting material and is in contact connection with the evaporation boat body; the temperature measuring device is used to measure the temperature of the evaporation boat body, and the temperature measuring device has a thermosensitive element in contact connection with the insulating connector.

[0007] In an embodiment, a groove is formed at the bottom of the evaporation boat body; the insulating connector is fixedly inserted into the groove.

[0008] In an embodiment, the insulating connector is in a sheet structure and has two surfaces respectively in contact connection with the evaporation boat body and the thermosensitive element.

[0009] In an embodiment, the insulating connector is made of a high-temperature resistant ceramic material.

[0010] In an embodiment, the temperature-measurable evaporation boat further includes a support structure, and the support structure includes a support column and a limiting plate; the support column extends in the up-and-down direction and is used to fix the evaporation boat body; the limiting plate is located below the evaporation boat body and is fixedly installed on the support column and is used to fix the temperature measuring device.

[0011] In an embodiment, the limiting plate is provided with a limiting hole extending in the up-and-down direction;

[0012] The temperature measuring device further includes a connecting member and a testing device body; a limiting sleeve is provided on the outer surface of the connecting member, the connecting member passes through the limiting hole, and the limiting sleeve is clamped in the limiting hole; the testing device body is fixed to the lower end of the connecting member; the thermosensitive element is at the upper end of the connecting member.

[0013] In one embodiment, an insulating coating is applied to the surfaces of the support columns and / or the limiting sleeves.

[0014] In one embodiment, first mounting holes are respectively formed at both ends of the evaporation boat body along its length direction; the limiting plate is arranged in parallel with the evaporation boat body and is provided with second mounting holes corresponding to the first mounting holes; there are two support columns, and the support columns are inserted into the corresponding first mounting holes and second mounting holes.

[0015] In one embodiment, the support structure further includes a fixed base, the fixed base is installed at the bottom of the support column, and the cross-sectional area of the fixed base gradually increases from top to bottom.

[0016] The present utility model also provides an evaporation boat temperature regulation system, which includes a controller and a temperature-measurable evaporation boat electrically connected to the controller.

[0017] The technical solution of the present utility model is to provide an insulating and heat-conducting insulating connecting member between the thermosensitive element of the temperature measuring device and the evaporation boat body. When measuring the temperature, the thermosensitive element does not directly contact the evaporation boat body, so that the temperature measuring device can operate normally for a long time. And the insulating connecting member is made of a heat-conducting material, which can conduct heat well, so that the temperature measuring device can measure the temperature of the evaporation boat body. This structural form is less affected by the environment, has a long service life and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of an embodiment of the temperature-measurable evaporation boat provided by the present utility model;

[0020] Figure 2 It is Figure 1 a schematic connection diagram of the evaporation boat body and the temperature measuring device in

[0021] Figure 3 It is Figure 2 a partial enlarged view of part A in

[0022] Explanation of the reference numerals in the drawings:

[0023] 100. Temperature-measurable evaporation boat; 1. Evaporation boat body; 11. Groove; 12. First mounting hole; 2. Insulating connector; 3. Temperature-measuring device; 31. Temperature-measuring device body; 32. Connector; 33. Thermal element; 34. Limiting sleeve; 341. First fixing part; 342. Second fixing part; 342A. First ring; 342B. Second ring; 4. Support structure; 41. Support column; 42. Limiting plate; 421. Limiting hole; 422. Second mounting hole; 43. Fixed base.

[0024] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0028] The existing evaporation boat is only used as a container for heating raw materials and lacks a temperature measuring device. During the process of adding raw materials to the evaporation boat and heating, the staff cannot confirm the temperature of the evaporation boat and can only roughly estimate by observing the state of the raw materials, so they cannot accurately control the amount of feeding.

[0029] The related technology uses an infrared temperature measurement method to measure the temperature of the raw materials. However, during the evaporation process of the evaporation boat, its environment is often filled with metal vapor, and the lens of the thermometer is extremely easy to be covered by the vapor to form a film, thus losing the temperature measurement ability. And because the evaporation boat itself is electrified and small in size, the placement space for the contact temperature measuring device is small and it is very easy to damage the contact temperature measuring device when the evaporation boat is electrified. There has been no evaporation boat using a contact temperature measuring device in the related technology. The present utility model proposes a temperature-measurable evaporation boat 100, so that the temperature measuring device 3 is indirectly in contact with the evaporation boat body 1 to measure the temperature of the evaporation boat body 1.

[0030] Please refer to Figure 1 With Figure 3 , in an embodiment of the present utility model, the temperature-measurable evaporation boat 100 includes: an evaporation boat body 1, an insulating connecting piece 2, and a temperature measuring device 3; the insulating connecting piece 2 is made of an insulating and heat-conducting material, and the insulating connecting piece 2 is in contact connection with the evaporation boat body 1; the temperature measuring device 3 is used to measure the temperature of the evaporation boat body 1, and the temperature measuring device 3 has a thermosensitive element 33 in contact connection with the insulating connecting piece 2.

[0031] The technical solution of the present utility model is to arrange an insulating and heat-conducting insulating connecting piece 2 between the thermosensitive element 33 of the temperature measuring device 3 and the evaporation boat body 1. During temperature measurement, the thermosensitive element 33 does not directly contact the evaporation boat body 1, and the temperature measuring device 3 will not be damaged when the evaporation boat body 1 is electrified, so that the temperature measuring device 3 can operate normally for a long time. And the insulating connecting piece 2 is a heat-conducting material and can conduct heat well, so that the temperature measuring device 3 can measure the temperature of the evaporation boat body 1; this structural form has a long service life, is less affected by the environment, and has a low cost.

[0032] When measuring the temperature of the evaporation boat body 1, since the evaporation boat body 1 is generally a good heat-conducting material, the temperature of the raw materials in the evaporation boat body 1 can be calculated according to the measured temperature of the temperature measuring device 3, the heat conduction coefficients of the insulating connecting piece 2 and the evaporation boat body 1; or, multiple heating tests are carried out to obtain empirical values for temperature correction, and the measured temperature of the temperature measuring device 3 is corresponding to the key temperature of the evaporation boat body 1 one by one, so as to replace the corresponding measured temperature value of the temperature measuring device 3 with the corresponding display value. After measuring the temperature of the evaporation boat body 1, the relevant heating parameters are adjusted to control the temperature of the raw materials in the evaporation boat body 1.

[0033] Specifically, the temperature measuring device 3 is a thermocouple or a high-temperature resistance temperature detector.

[0034] Please participate Figure 2 with Figure 3 , since the evaporation boat body 1 has a certain thickness, in order to improve the measurement sensitivity, in an embodiment of the present invention, a groove 11 is opened at the bottom of the evaporation boat body 1; the insulating connector 2 is fixedly inserted into the groove 11. Opening the groove 11 at the bottom of the evaporation boat body 1 can shorten the distance between the raw material and the thermosensitive element 33, reduce the thermal resistance in the heat transfer process of the entire device, thereby reducing the heat transfer time and improving the measurement sensitivity.

[0035] Specifically, the insulating connector 2 is a thin sheet structure. The insulating connector 2 can be fixed in the groove 11 by a high-temperature adhesive or clamped in the groove 11 by dimensional fit, so that one side of the insulating connector 2 is in close contact with the bottom wall of the groove 11. The size of the groove 11 is matched with the size of the insulating connector 2 so that the side wall of the groove 11 is in close contact with the side surface of the insulating connector 2.

[0036] Furthermore, the size of the groove 11 gradually decreases from the bottom to the top of the groove to reduce its heat dissipation and reduce the heat loss of the evaporation boat body 1.

[0037] The evaporation boat body 1 can be selected as a boat-shaped structure and heated by energizing both ends in its length direction. The temperature at the central position of the evaporation boat body 1 is the most stable. In one embodiment, in order to reduce the temperature fluctuation of the temperature measuring device 3, the groove 11 is opened at the central position of the bottom of the evaporation boat body 1.

[0038] As a part for conducting heat, the shape and material of the insulating connector 2 directly affect the accuracy of the temperature measuring device 3. In an embodiment of the present invention, in order to reduce the loss in the heat transfer process, the insulating connector 2 is a sheet structure and has two sides respectively in contact connection with the evaporation boat body 1 and the thermosensitive element 33.

[0039] In one embodiment, tiny protrusions / holes are provided on both sides of the insulating connector 2, and corresponding holes / protrusions are provided at the corresponding positions of the evaporation boat body 1 and / or the thermosensitive element 33 and the insulating connector 2 to improve the heat conduction efficiency and improve the measurement accuracy.

[0040] In an embodiment of the present invention, the material of the insulating connector 2 is a high-temperature resistant ceramic material, such as alumina and silicon carbide materials, which can maintain good insulation performance and withstand high-temperature environments under high-temperature conditions.

[0041] Please refer to Figure 1, the volume of the evaporation boat body 1 is relatively small. In order to install the evaporation boat body 1 and the temperature measuring device 3, in an embodiment of the present invention, the temperature-measurable evaporation boat 100 further includes a support structure 4, and the support structure 4 includes a support column 41 and a limiting plate 42; the support column 41 extends in the up-and-down direction for fixing the evaporation boat body 1; the limiting plate 42 is located below the evaporation boat body 1 and is fixedly installed on the support column 41 for fixing the temperature measuring device 3.

[0042] Please refer to Figure 1 and Figure 2 , in an embodiment of the present invention, the limiting plate 42 is provided with a limiting hole 421 extending in the up-and-down direction; the temperature measuring device 3 further includes a connecting member 32 and a temperature measuring device body 31; a limiting sleeve 34 is provided on the outer surface of the connecting member 32, the connecting member 32 passes through the limiting hole 421, and the limiting sleeve 34 is clamped in the limiting hole 421; the temperature measuring device body 31 is fixed to the lower end of the connecting member 32; the thermosensitive element 33 is at the upper end of the connecting member 32. By providing the connecting member 32 and providing a limiting sleeve 34 on the outer surface of the connecting member 32, the limiting sleeve 34 is installed in the limiting hole 421 to fix the connecting member 32, and the thermosensitive element 33 is above the connecting member 32, and the fixing of the connecting member 32 makes the thermosensitive element 33 abut against the insulating connecting member 322.

[0043] Specifically, please refer to Figure 2 , the connecting member 32 is a rod-shaped structure extending in the up-and-down direction, and the limiting sleeve 34 is fixedly connected to the connecting member 32 and matches the limiting hole 421. Among them, the limiting sleeve 34 has a first fixing portion 341 and a second fixing portion 342 arranged in sequence along its axial direction. The first fixing portion 341 is a nut for restricting the connecting member 32 to prevent it from rotating around the axis. The first fixing portion 341 is divided into a first ring 342A and a second ring 342B arranged along its axial direction. The diameter of the first ring 342A is smaller than the diameter of the lower ring to restrict the connecting member 32 to prevent it from sliding up and down in the limiting hole 421.

[0044] In an embodiment of the present invention, the surfaces of the support column 41 and / or the limiting sleeve 34 are coated with an insulating coating to prevent damage to the temperature measuring device 3 when the evaporation boat body 1 is electrified.

[0045] In an embodiment of the present invention, the support column 41 and / or the limiting sleeve 34 are at least partially made of insulating material.

[0046] Please refer to Figure 1, in an embodiment of the present utility model, for facilitating the replacement of the evaporation boat body 1 and the temperature measuring device 3, first mounting holes 12 are respectively formed at both ends of the evaporation boat body 1 along its length direction; the limiting plate 42 is arranged in parallel with the evaporation boat body 1 and is provided with second mounting holes 422 corresponding to the first mounting holes 12; there are two support columns 41, and each support column 41 is inserted into the corresponding first mounting hole 12 and second mounting hole 422.

[0047] In an embodiment of the present utility model, to enhance the stability of the installation of the evaporation boat body 1, the support structure 4 further includes a fixed base 43, the fixed base 43 is installed at the bottom of the support column 41, and the cross-sectional area of the fixed base 43 gradually increases from top to bottom.

[0048] In one embodiment, there are two fixed bases 43, which are respectively installed at the bottoms of the two support columns 41, or, there is one fixed base 43, the two support columns 41 are fixed on the fixed base 43, and the fixed base 43 is fixedly installed at the installation position.

[0049] The present utility model also proposes an evaporation boat temperature regulation system, which includes a controller and a temperature-measurable evaporation boat 100. The specific structure of the temperature-measurable evaporation boat 100 refers to the above embodiments. Since the evaporation boat temperature regulation system adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0050] Among them, the controller is used to receive the electrical signal of the temperature measuring device 3, display the measured temperature, and adjust the parameters related to the evaporation boat body 1. The temperature inside the evaporation boat body 1 is measured by the temperature measuring device 3, and the temperature signal is transmitted to the controller. The controller adjusts the parameters related to the evaporation boat body 1 according to the measured temperature, and then receives the temperature signal of the temperature measuring device 3 again after adjustment to perform closed-loop control.

[0051] Specifically, the controller is a PLC, that is, a programmable logic controller, which can receive the input signal from the temperature measuring device 3 and control the temperature of the evaporation boat body 1 according to the input signal.

[0052] Furthermore, the evaporation boat temperature regulation system further includes a transmitter, which is used to convert the signal of the temperature measuring device 3 into a standard input signal and transmit the input signal to the controller.

[0053] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A temperature-measurable evaporation boat, characterized in that: include: Evaporation boat body; An insulating connector, wherein the insulating connector is made of an insulating heat-conductive material and is in contact with and connected to the evaporation boat body; as well as, A temperature measuring device is used to measure the temperature of the evaporation boat body, and the temperature measuring device has a thermal element in contact with the insulating connecting piece.

2. The temperature-measurable evaporation boat according to claim 1, characterized in that: A groove is provided at the bottom of the evaporation boat body; The insulating connector is fixedly inserted into the groove.

3. The temperature-measurable evaporation boat according to claim 1, characterized in that: The insulating connector is a sheet-like structure and has two surfaces which are respectively in contact with the evaporation boat body and the thermal sensitive element.

4. The temperature-measurable evaporation boat according to claim 1 or 3, characterized in that: The insulating connector is made of high temperature resistant ceramic material.

5. The temperature-measurable evaporation boat according to claim 1, characterized in that: The temperature-measurable evaporation boat further includes a supporting structure, and the supporting structure includes: A support column extending in the vertical direction to fix the evaporation boat body; and A limiting plate is located below the evaporation boat body and is fixedly mounted on the supporting column to fix the temperature measuring device.

6. The temperature-measurable evaporation boat according to claim 5, characterized in that: The limiting plate is provided with limiting holes in the upper and lower directions; The temperature measuring device also includes: A connecting piece, wherein a limiting sleeve is provided on the outer surface of the connecting piece, the connecting piece passes through the limiting hole, and the limiting sleeve is clamped in the limiting hole; The testing device body is fixed to the lower end of the connecting piece; The thermal element is at the upper end of the connector.

7. The temperature-measurable evaporation boat according to claim 6, characterized in that: The surfaces of the support column and / or the limiting sleeve are coated with an insulating coating.

8. The temperature-measurable evaporation boat according to claim 5, characterized in that: The evaporation boat body is provided with first mounting holes at both ends along the length direction thereof; The limiting plate is arranged in parallel with the evaporation boat body and is provided with a second mounting hole corresponding to the first mounting hole; There are two support columns, and each support column is inserted into the corresponding first mounting hole and second mounting hole.

9. The temperature-measurable evaporation boat according to claim 5 or 8, characterized in that: The support structure also includes a fixed base, which is installed at the bottom of the support column, and the cross-sectional area of ​​the fixed base gradually increases from top to bottom.

10. An evaporation boat temperature control system, characterized in that: The invention comprises a controller and a temperature-measurable evaporation boat electrically connected to the controller, wherein the temperature-measurable evaporation boat is the temperature-measurable evaporation boat as claimed in any one of claims 1 to 9.

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