阅读说明：本技术 一种燃烧室旋转测温装置 (Rotary temperature measuring device for combustion chamber ) 是由 张国强 李东明 梁晨 武萍 李雅军 任艳平 王俊 于 2020-12-28 设计创作，主要内容包括：一种燃烧室旋转测温装置,属于热能与动力设备技术领域,本发明为解决燃气轮机燃烧室出口测量段结构复杂,导致现有技术无法准确获取燃烧室出口截面各测点温度的问题。它包括：旋转测温设备入口与被测燃烧室出口连通,燃气从旋转测温设备入口进入测温装置,从旋转测温设备出口排出；旋转测温设备入口内设置有旋转电偶耙,燃气进入旋转测温设备入口后,冲刷旋转电偶耙上的温度传感器,旋转电偶耙上的温度传感器测量燃气温度；旋转电偶耙的周向摆动角度通过传动机构调整,旋转电偶耙通过安装座安装在传动机构上,旋转编码器通过联轴器连接在传动机构的驱动轴上,传动机构通过电动机构驱动。本发明用于燃气轮机燃烧室出口测温。(The invention discloses a rotary temperature measuring device for a combustion chamber, belongs to the technical field of heat energy and power equipment, and aims to solve the problem that the temperature of each measuring point of the outlet section of the combustion chamber cannot be accurately obtained in the prior art due to the complex structure of the outlet measuring section of the combustion chamber of a gas turbine. It includes: an inlet of the rotary temperature measuring equipment is communicated with an outlet of the combustion chamber to be measured, and the fuel gas enters the temperature measuring device from the inlet of the rotary temperature measuring equipment and is discharged from the outlet of the rotary temperature measuring equipment; a rotary thermocouple rake is arranged in the inlet of the rotary temperature measuring equipment, and after the gas enters the inlet of the rotary temperature measuring equipment, a temperature sensor on the rotary thermocouple rake is washed away, and the temperature sensor on the rotary thermocouple rake measures the temperature of the gas; the circumferential swing angle of the rotary galvanic couple harrow is adjusted through a transmission mechanism, the rotary galvanic couple harrow is installed on the transmission mechanism through a mounting seat, a rotary encoder is connected to a driving shaft of the transmission mechanism through a coupler, and the transmission mechanism is driven through an electric mechanism. The invention is used for measuring the temperature of the outlet of the combustion chamber of the gas turbine.)

1. A combustion chamber rotary temperature measuring device is characterized by comprising a rotary temperature measuring equipment inlet (1), a rotary temperature measuring equipment outlet (2), a transmission mechanism (3) and a rotary couple rake (6);

the transmission mechanism (3) comprises a rotary encoder (4), a coupler (5), a mounting seat (7) and an electric mechanism (8);

the inlet (1) of the rotary temperature measuring equipment is communicated with the outlet of the combustion chamber to be measured, and the fuel gas enters the temperature measuring device from the inlet (1) of the rotary temperature measuring equipment and is discharged from the outlet (2) of the rotary temperature measuring equipment; the rotating shaft of the transmission mechanism (3) is coaxial with the axis of the outlet section of the combustion chamber to be measured;

a rotary thermocouple rake (6) is arranged in the inlet (1) of the rotary temperature measuring equipment, after the fuel gas enters the inlet (1) of the rotary temperature measuring equipment, a temperature sensor on the rotary thermocouple rake (6) is washed away, and the temperature sensor on the rotary thermocouple rake (6) measures the temperature of the fuel gas;

the circumferential swing angle of the rotary galvanic couple harrow (6) is adjusted through the transmission mechanism (3), the rotary galvanic couple harrow (6) is installed on the transmission mechanism (3) through the installation seat (7), the rotary encoder (4) is connected to the driving shaft of the transmission mechanism (3) through the coupler (5), and the transmission mechanism (3) is driven through the electric mechanism (8).

2. The combustion chamber rotating temperature measuring device according to the claim 1, characterized in that it also includes a dial (9), the dial (9) is set on the transmission mechanism (3), it can display the rotating angle of the rotating couple harrow (6) in real time.

3. The combustion chamber rotating temperature measuring device according to claim 1, further comprising a stopper (10), wherein the stopper (10) is arranged on the transmission mechanism (3) and used for limiting the rotation angle of the rotating couple harrow (6).

4. The rotary combustion chamber temperature measuring device according to claim 1, wherein the transmission mechanism (3) further comprises a gear mechanism (11), and the electric mechanism (8) drives the transmission mechanism (3) through the gear mechanism (11).

5. The rotary combustion chamber temperature measuring device according to any one of claims 1 to 4, wherein a plurality of temperature sensors are arrayed on the rotary electric harrow (6).

Technical Field

The invention relates to a rotary temperature measuring device for a combustion chamber, and belongs to the technical field of heat energy and power equipment.

Background

The gas turbine has the advantages of large single-machine power, small volume, light weight, good starting acceleration, simple operation and maintenance, stable operation, convenient maintenance, good working reliability and the like, and is widely applied to the fields of marine power devices, industrial power generation, offshore platform power generation, west-east gas pipeline pressurization and the like. Due to a large amount of requirements in various fields, gas turbine power devices of different levels need to be designed, performance test verification of a gas turbine combustor is one of important means in research and development design of the gas turbine, the gas turbine combustor belongs to a high-temperature-rise component, outlet gas has the characteristics of high flow rate, high temperature, high pressure and the like, wherein the outlet temperature distribution quality of the combustor is an important index of the combustor design, and how to accurately acquire the temperature of each measuring point of the outlet section of the combustor becomes a technical problem in performance test research of the combustor.

Disclosure of Invention

The invention aims to solve the problem that the temperature of each measuring point of the outlet section of a combustion chamber cannot be accurately obtained in the prior art due to the complex structure of the outlet measuring section of the combustion chamber of a gas turbine, and provides a rotary temperature measuring device for the combustion chamber.

The invention relates to a rotary temperature measuring device for a combustion chamber, which comprises a rotary temperature measuring equipment inlet, a rotary temperature measuring equipment outlet, a transmission mechanism and a rotary thermocouple rake;

the transmission mechanism comprises a rotary encoder, a coupler, a mounting seat and an electric mechanism;

an inlet of the rotary temperature measuring equipment is communicated with an outlet of the combustion chamber to be measured, and the fuel gas enters the temperature measuring device from the inlet of the rotary temperature measuring equipment and is discharged from the outlet of the rotary temperature measuring equipment; the rotating shaft of the transmission mechanism is coaxial with the axis of the outlet section of the combustion chamber to be measured;

a rotary thermocouple rake is arranged in the inlet of the rotary temperature measuring equipment, and after the gas enters the inlet of the rotary temperature measuring equipment, a temperature sensor on the rotary thermocouple rake is washed away, and the temperature sensor on the rotary thermocouple rake measures the temperature of the gas;

the circumferential swing angle of the rotary galvanic couple harrow is adjusted through a transmission mechanism, the rotary galvanic couple harrow is installed on the transmission mechanism through a mounting seat, a rotary encoder is connected to a driving shaft of the transmission mechanism through a coupler, and the transmission mechanism is driven through an electric mechanism.

Preferably, the rotary thermocouple harrow also comprises a dial which is arranged on the transmission mechanism and can display the rotating angle of the rotary thermocouple harrow in real time.

Preferably, the thermocouple rake further comprises a limiter, and the limiter is arranged on the transmission mechanism and used for limiting the rotation angle of the rotary thermocouple rake.

Preferably, the transmission mechanism further comprises a gear mechanism, and the electric mechanism drives the transmission mechanism through the gear mechanism.

Preferably, a plurality of temperature sensors are arrayed on the rotary electric coupling harrow.

The invention has the advantages that: compared with the traditional array temperature measuring equipment, the rotary temperature measuring device for the combustion chamber has the advantages of small volume, high temperature resistance, small blocking ratio, high flexibility and the like, can sweep the temperature field of the outlet of the combustion chamber within a specified angle, and can stay in any angle to measure the temperature of fuel gas. Therefore, the temperature of each measuring point of the outlet section of the combustion chamber can be accurately obtained, and the accuracy of the test on the measurement of the outlet temperature field of the combustion chamber is improved.

Drawings

FIG. 1 is a schematic structural view of a rotary temperature measuring device of a combustion chamber according to the present invention;

FIG. 2 is a left side view of a rotary temperature measuring device for a combustion chamber according to the present invention;

fig. 3 is an enlarged view of a part of the transmission mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The first embodiment is as follows: the following describes the present embodiment with reference to fig. 1 to fig. 3, and the combustion chamber rotary temperature measuring device of the present embodiment includes a rotary temperature measuring equipment inlet 1, a rotary temperature measuring equipment outlet 2, a transmission mechanism 3 and a rotary thermocouple rake 6;

the transmission mechanism 3 comprises a rotary encoder 4, a coupler 5, a mounting seat 7 and an electric mechanism 8;

the inlet 1 of the rotary temperature measuring equipment is communicated with the outlet of the combustion chamber to be measured, and the fuel gas enters the temperature measuring device from the inlet 1 of the rotary temperature measuring equipment and is discharged from the outlet 2 of the rotary temperature measuring equipment; the rotating shaft of the transmission mechanism 3 is coaxial with the axis of the outlet section of the combustion chamber to be measured;

a rotary thermocouple rake 6 is arranged in the inlet 1 of the rotary temperature measuring equipment, after the fuel gas enters the inlet 1 of the rotary temperature measuring equipment, a temperature sensor on the rotary thermocouple rake 6 is washed away, and the temperature sensor on the rotary thermocouple rake 6 measures the temperature of the fuel gas;

the circumferential swing angle of the rotary couple harrow 6 is adjusted through the transmission mechanism 3, the rotary couple harrow 6 is installed on the transmission mechanism 3 through the mounting seat 7, the rotary encoder 4 is connected on the driving shaft of the transmission mechanism 3 through the coupler 5, and the transmission mechanism 3 is driven through the electric mechanism 8.

In the embodiment, the transmission mechanism 3 is used for adjusting the circumferential swing angle of the rotary thermocouple rake 6, so that the rotary thermocouple rake 6 can measure the gas temperature at different circumferential positions of the section of the inlet 1 of the rotary temperature measuring equipment. The rotary electric couple harrow 6 can sweep the temperature field of the inlet 1 of the rotary temperature measuring equipment, namely the temperature field of the outlet of the measured combustion chamber within the range of +/-0.5 alpha, and can measure the temperature of the fuel gas at any angle.

In the embodiment, the rotary thermocouple rake 6 can adopt a single-point or multi-point measurement structure, and the cooling mode adopts gas cooling, so that the temperature resistance is as high as 1500 ℃.

In this embodiment, the dial 9 can accurately position the measurement point position.

Furthermore, the rotary thermocouple harrow also comprises a dial 9, wherein the dial 9 is arranged on the transmission mechanism 3 and can display the rotating angle of the rotary thermocouple harrow 6 in real time.

In the present embodiment, the position of the measurement point can be obtained from the rotation angle of the dial 9.

Still further, it still includes stopper 10, and stopper 10 sets up on drive mechanism 3 for the rotation angle of restricting rotatory galvanic couple harrow 6.

In this embodiment, the stopper 10 can prevent the rotating couple rake 6 from deviating from the effective measurement cross section of the inlet 1 of the rotating temperature measurement device due to an excessively large rotation angle.

Still further, the transmission mechanism 3 further comprises a gear mechanism 11, and the electric mechanism 8 drives the transmission mechanism 3 through the gear mechanism 11.

Still further, a plurality of temperature sensors are arrayed on the rotary electric coupler rake 6.

The rotary temperature measuring device for the combustion chamber provided by the invention overcomes the problems of complex structure, complex disassembly and assembly procedures, high blocking ratio and the like of an outlet measuring section of the combustion chamber of a gas turbine, and designs the rotary temperature measuring equipment for the combustion chamber, which does not need a multi-point array thermocouple and has higher flexibility. Flow resistance loss of a combustion chamber outlet flow passage is reduced, so that test errors caused by the influence of airflow disturbance on a temperature field test result are reduced, the gas temperature of each test point of the combustion chamber outlet section can be tested by one rotary couple rake, the times of disassembly and assembly of the couple rake are reduced, and the test method can be used as a gas turbine combustion chamber performance test method. The device can reduce the outlet blocking ratio of the combustion chamber while meeting the temperature field test of the outlet of the combustion chamber of the gas turbine under different working conditions, and does not need to repeatedly disassemble and assemble the thermocouple.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.