A steam compressor speed increasing gearbox

Abstract

The present invention belongs to the technical field of steam compressor equipment, and specifically discloses a steam compressor speed increasing box, including a sensor mounting plate fixed to the outside of the lower box of the speed increasing box, the sensor mounting plate is provided with five through holes, the five lines of the bearing temperature measuring circuit and the shaft vibration probe sensor circuit are respectively introduced from the through holes, and the five lines are simultaneously fixed on the end surface of the inner side of the high-speed rotor group in the speed increasing box after being introduced from the through holes, and the free ends of the five lines are respectively fixed on the glands of the five bearings in the speed increasing box. The speed increasing box with the above structure can solve the problems of the complicated and irregular arrangement of the five sensor lines in the speed increasing box in the prior art, and the problem of increased workload caused by the need to simultaneously remove the five sensor lines when replacing wearing parts.

Description

Technical Field

[0001] The invention belongs to the technical field of steam compressor equipment, and in particular relates to a steam compressor speed increasing box. Background Art

[0002] Steam compressor is a key device in the heat recovery system that compresses the generated steam to increase the temperature and pressure of the steam. Its function is to pressurize and heat the low-pressure (or low-temperature) steam to meet the temperature and pressure requirements of the process or project. Figure 1 As shown, firstly, there is no connection between the existing volute and the upper case cover of the speed increaser, and it is connected to the lower case cover of the speed increaser via a tapered pin. This results in all the weight of the volute being concentrated on the lower case body of the speed increaser. If the volute is too heavy, it will cause poor fit between the split surfaces in the gearbox. Secondly, the five sensor wires of the bearing temperature measurement and shaft vibration probes in the speed increaser are introduced from the upper case body, while general wire grooves are arranged in the lower case body of the speed increaser. Therefore, this will cause the entire sensor line to be more complicated and the arrangement is not neat. Moreover, when replacing wearing parts such as bearing seals, it is necessary to remove the upper case cover of the speed increaser and remove the five sensor wires at the same time, which greatly increases the workload. Figure 2 , 3 As shown in the figure, since there are five bearings in the speed increaser, namely the low-speed rear bearing, the secondary thrust bearing, the high-speed rear bearing, the low-speed front bearing and the high-speed front bearing, a special pipeline needs to be set up for oil supply. However, the space inside the speed increaser is relatively small, so it is difficult to set up a special oil supply pipeline inside. Summary of the invention

[0003] The purpose of the present invention is to provide a steam compressor speed increasing gearbox to solve the problem in the prior art that the five sensor wires in the speed increasing gearbox are complex and arranged irregularly, and the problem that the five sensor wires need to be removed simultaneously when replacing wearing parts, resulting in increased workload.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a steam compressor speed increaser, comprising a sensor mounting plate fixed on the outside of the lower case of the speed increaser, the sensor mounting plate is provided with five through holes, the five lines of the bearing temperature sensor circuit and the shaft vibration probe sensor circuit are respectively introduced from the through holes, and the five lines are simultaneously fixed on the end face on the inner side of the high-speed rotor group in the speed increaser after being introduced from the through holes, and the free ends of the five lines are respectively fixed above the pressure covers of the five bearings in the speed increaser.

[0005] Furthermore, an oil supply channel is drilled on the speed increaser, and the oil supply channel includes a main channel and five branch channels, the branch channels are respectively connected to the main channel, the five branch channels supply oil to five bearings respectively, and the main channel is connected to an external oil pipe.

[0006] Furthermore, a flange surface is provided on the upper casing of the speed increasing box, and the flange surface is detachably connected to the volute.

[0007] Furthermore, a positioning stop is provided below the volute.

[0008] Furthermore, the distribution angle of the flange surface on the speed increasing box is 45° to 135°.

[0009] Furthermore, the distribution angle of the positioning stop on the volute is 181° to 359°.

[0010] Furthermore, the flange surface and the volute are connected by bolts.

[0011] The beneficial effects of this technical solution are: ① The flange surface provided on the upper case of the speed increaser can make the force of the volute as evenly distributed as possible, solving the problem in the prior art that there is no connection between the volute and the upper case cover of the speed increaser, which causes all the weight of the volute to be concentrated on the lower case of the speed increaser. ② A positioning stop is provided under the volute. Compared with the prior art in which the volute and the lower case cover of the speed increaser are connected by a taper pin, this technical solution increases the interchangeability of the volute and the speed increaser. ③ In this technical solution, the line is on the lower case of the speed increaser, close to the base of the oil tank, and the wiring is neat and beautiful; and it also solves the problem of increased workload when replacing wearing parts caused by the introduction of the line from the upper case cover. ④ This technical solution replaces the prior art with a special pipeline by drilling an oil supply channel upward at the speed increaser, thereby solving the problem of difficulty in setting up an oil supply pipeline due to the relatively small space inside the speed increaser case. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a connection structure diagram of the speed increasing box and the volute in the background technology;

[0013] Figure 2 It is a top view structural diagram of the oil supply pipeline in the background technology;

[0014] Figure 3 It is the internal structure diagram of the oil supply pipeline in the background technology;

[0015] Figure 4 This is a connection structure diagram of a steam compressor speed increasing box of the present invention;

[0016] Figure 5 This is a structural diagram of the bearing oil supply channel. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The reference numerals in the drawings of the specification include: volute 1, speed increaser 2, lower housing 3, upper housing 4, taper pin 5, shaft vibration probe sensor circuit 6, oil supply pipeline 7, bearing temperature sensor circuit 8, positioning stop 9, main channel 10, branch channel 11, low-speed front bearing 12, high-speed front bearing 13, low-speed rear bearing 14, high-speed rear bearing 15, auxiliary thrust bearing 16, sensor mounting plate 17, flange surface 18

[0019] 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.

[0020] The embodiment is basically as shown in the attached Figure 4-5 As shown: A steam compressor speed increaser, comprising a sensor mounting plate 17 fixed to the outside of the lower housing 3 of the speed increaser 2, with five through holes provided on the sensor mounting plate 17, and five lines, namely the bearing temperature sensor line 8 and the shaft vibration probe sensor line 6, are introduced from the through holes respectively, and the five lines are simultaneously fixed on the end surface of the inner side of the high-speed rotor group in the speed increaser 2 after being introduced from the through holes, and the free ends of the five lines are respectively fixed on the glands of the five bearings in the speed increaser 2. A flange surface 18 is provided on the upper housing 4 of the speed increaser 2, and the flange surface 18 is connected to the volute 1 by bolts, and the distribution angle of the flange surface 18 on the speed increaser 2 is 45° to 135°. A positioning stop 9 is provided below the volute 1, and the distribution angle of the positioning stop 9 on the volute 1 is 181° to 359°. An oil supply channel is drilled on the speed increasing box 2, and the oil supply channel includes a main channel 10 and five branch channels 11. The branch channels 11 are respectively connected to the main channel 10. The five branch channels 11 supply oil to five bearings respectively. The main channel 10 is connected to an external oil pipe.

[0021] 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.

[0022] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A steam compressor speed increasing gearbox, characterized in that: It includes a sensor mounting plate fixed on the outside of the lower case of the speed increaser, the sensor mounting plate is provided with five through holes, five sensor wires of the bearing temperature detector circuit and the shaft vibration probe sensor circuit are respectively introduced from the through holes, and the five sensor wires are simultaneously fixed on the end face on the inner side of the high-speed rotor group in the speed increaser after being introduced from the through holes, and the free ends of the five sensor wires are respectively fixed above the pressure covers of the five bearings in the speed increaser; an oil supply channel is drilled on the speed increaser, the oil supply channel includes a main channel and five branch channels, the branch channels are respectively connected to the main channel, the five branch channels respectively supply oil to the five bearings, and the main channel is connected to the external oil pipe; a flange surface is provided on the upper case of the speed increaser, and the flange surface is detachably connected to the volute.

2. A steam compressor speed increasing gearbox according to claim 1, characterized in that: A positioning stop is provided below the volute.

3. A steam compressor speed increasing gearbox according to claim 1, characterized in that: The distribution angle of the flange surface on the speed increaser is 45° to 135°.

4. A steam compressor speed increasing gearbox according to claim 2, characterized in that: The distribution angle of the positioning stop on the volute is 181° to 359°.

5. The steam compressor speed increasing gearbox according to claim 1, characterized in that: The flange surface and the volute are connected via bolts.

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