Multi-point flexible thermocouple/resistor with conical sealing cavity
A technology of sealed cavity and thermocouple, applied in the direction of thermometers, measuring heat, and using electric devices that are directly sensitive to heat, electric/magnetic elements, etc., can solve problems such as potential safety hazards, increase operating costs and labor costs, and achieve assurance The effect of welding quality, firmness and reliability of the welding place, and reasonable welding space
Active Publication Date: 2020-06-16
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
The key point is: the size of the process interface of the equipment must be consistent with the specification and size of the thermocouple / resistance flange. The flange size of the thermocouple / resistance is determined by the number of thermocouples / resistance and the diameter of the sheath. The quantity is determined by the control requirements of the process, and the diameter is determined by the calculation of pressure, temperature and bearing strength. If the size of the thermal couple / resistance flange is larger than the equipment flange, the equipment needs to change the interface flange size or add equipment openings; if additional equipment Opening, the number of split thermocouples / resistors needs to be redesigned, and the internal installation structure of the reactor needs to be changed. The entire design and installation process involves processes, equipment and instruments, which not only increases operating costs and labor costs, but also easily creates safety hazards
Method used
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Embodiment 1
[0023] A multi-point flexible thermocouple / resistance acting as a proxy for a tapered sealed cavity, including a flange 6, which is sealed and welded to the tapered sealed cavity 5, and the temperature element 11 is evenly welded on the first sealed connection plate 2, Then, the first sealing connection plate 2 is welded to the tapered sealing cavity 5, thereby increasing the arrangement area of the temperature elements without changing the size of the process interface of the equipment, and solving the problem of the number of measuring points and the size of the process interface. The connection problem that the temperature element cannot be placed due to the mismatch.
[0024] Such as figure 1 As shown, a multi-point flexible thermocouple / resistance with a tapered sealing cavity includes a junction box 8, a supporting plate 9, a second sealing connection plate 12, a secondary sealing cavity 3, a leak detection instrument and a combined valve group 10, Conical sealing cha...
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Abstract
The invention discloses a multipoint flexible thermocouple / resistor with a conical sealing cavity. The multipoint flexible thermocouple / resistor comprises a flange connected with an equipment processinterface, wherein the flange is welded with a conical part of the conical sealing cavity, and the top part of the conical sealing cavity is welded with a first sealing connection plate; a secondary sealing cavity is welded to the other surface of the first sealing connection plate, a second sealing connection plate is arranged on the upper portion of the secondary sealing cavity, the secondary sealing cavity is connected with a junction box through a supporting plate, and a guide rail type terminal wire holder is arranged in the junction box; a plurality of flexible armored temperature elements sequentially penetrate through the flange, the conical sealing cavity, the first sealing connection plate, the secondary sealing cavity, the second sealing connection plate and the bottom part of the junction box and is connected with the guide rail type terminal wire holder; and the plurality of flexible armored temperature elements are respectively welded and fixedly connected with the firstsealing connection plate and the second sealing connection plate. According to the multipoint flexible thermocouple / resistor, the installation of the multi-point flexible thermocouple / resistor is realized under the conditions of not changing the sizes of the process interfaces and not increasing the number of the process interfaces.
Description
technical field [0001] The invention relates to the field of temperature measurement, in particular to a multi-point flexible thermocouple / resistance with a tapered sealing cavity. Background technique [0002] In the refining and chemical industry, multi-point flexible thermocouples / resistors are mostly used for reactor temperature measurement. In order to ensure the reliable and safe operation of the equipment, the thermocouples / resistors adopt a multi-level safety sealing structure. The key point is: the size of the process interface of the equipment must be consistent with the specification and size of the thermocouple / resistance flange. The flange size of the thermocouple / resistance is determined by the number of thermocouples / resistance and the diameter of the sheath. The quantity is determined by the control requirements of the process, and the diameter is determined by the calculation of pressure, temperature and bearing strength. If the size of the thermal couple / re...
Claims
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IPC IPC(8): G01K7/02G01K7/22G01K1/14
CPCG01K7/02G01K7/22G01K1/14
Inventor 孙永孔魏剑萍马有峰蒲章勤孙瑞
Owner CHINA PETROLEUM & CHEM CORP