CN202250859U

CN202250859U - Coke-oven gas screw compressor unit

Info

Publication number: CN202250859U
Application number: CN2011203746909U
Authority: CN
Inventors: 肖芳; 张纬敏; 蔡琼颖
Original assignee: SHANGHAI QIYAO SCREW MACHINERY CO Ltd
Current assignee: SHANGHAI QIYAO SCREW MACHINERY CO Ltd
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-05-30
Anticipated expiration: 2021-09-28

Abstract

The utility model relates to a coke-oven gas screw compressor unit, which is characterized in that: a shell has a horizontal-type structure; junctions between a suction end seat and an air cylinder body and between the air cylinder body and a ventilation end seat are respectively subdivided by two vertical subdivision surfaces; a suction port is arranged on the upper part of the suction end seat, and a ventilation port is arranged on the lower part of the ventilation end seat; the air cylinder body and the ventilation end seat are respectively provided with an independent water interlayer; two independent water interlayers are respectively connected with a first cooling water inlet on the air cylinder body and a second cooling water inlet on the ventilation end seat; symmetric oil-return pipelines are respectively arranged on the lower part of the suction end seat and the lower part of the ventilation end seat; a spraying port is arranged on the suction port; a female rotor and a male rotor are arranged inside the shell; the female rotor and the male rotor are respectively supported by a female rotor bearing and a male rotor bearing inside the main machine shell; and the female rotor bearing is separated from a rotor compression cavity body through a multichannel carbon ring seal which is arranged on the female rotor, and the male rotor bearing is separated from the rotor compression cavity body through a multichannel carbon ring seal which is arranged on the male rotor.

Description

The coke-stove gas SCREW COMPRESSOR

Technical field

The utility model relates to a kind of SCREW COMPRESSOR, relates in particular to the structure of this coke-stove gas SCREW COMPRESSOR.

Background technique

Along with the development of coal chemical technology and the reinforcement of environmental consciousness, the recycling of coke-stove gas has been obtained increasing attention.Each coke-oven plant is numerous and confused to cooperate with the chemical plant, and the coke-stove gas of coke-oven plant is recycled, and produces the extraction industrial chemicals.

Integrity problem as the coke-stove gas compressor of the key equipment in the recycling technological process of oven gas is not well solved.Because coke-stove gas carries naphthalene, tar and solid particle, causes the air valve fault of reciprocal compressor easily, downtime ratio is high; And these impurity are flocked on the quick runner of centrifugal compressor, cause the imbalance of machine, cause vibration exceeding the standard even impeller to damage, and have a strong impact on the normal operation of machine.Adopt helical-lobe compressor because single-stage pressure ratio and tolerance are limited, application also is restricted.

Summary of the invention

The utility model technical issues that need to address have provided a kind of coke-stove gas SCREW COMPRESSOR, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:

The utility model comprises: housing; Described housing is a horizontal type structure; Described housing is made up of suction end base, cylinder block and exhausting end base successively; Said suction end base carries out subdivision by the vertical split surface with second of the first vertical split surface with cylinder block and cylinder block respectively with the joint of exhausting end base; Intakeport is positioned at described suction end base top, and relief opening is positioned at described exhausting end base bottom; On described cylinder block and exhausting end base, be respectively equipped with the first independent water interlayer and the second independent water interlayer; The described first independent water interlayer and the second independent water interlayer respectively be placed in cylinder block on first cooling water inlet link to each other with second cooling water inlet on being placed in exhausting end base; Be respectively equipped with suction end base symmetric form return line and exhausting end base symmetric form return line at described suction end base and exhausting end base bottom; On described intakeport, mouth spray is set; In described housing, comprise: female rotor and male rotor; Described female rotor and male rotor are placed in the host shell by female rotor bearing and the supporting of male rotor bearing respectively; The multiple tracks carbocyclic ring sealing that is provided with on the sealing of multiple tracks carbocyclic ring through being provided with on the female rotor and the male rotor respectively between described female rotor bearing and male rotor bearing and the rotor compression cavity is separated.

Compared with prior art, the beneficial effect of the utility model is: can be used for high pressure, big flow coke-stove gas supercharging operating mode, set structure is compact, reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the cross section view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

Visible by Fig. 1, Fig. 2: the utility model comprises: housing; Described housing is a horizontal type structure; Described housing is made up of suction end base 4, cylinder block 2 and exhausting end base 1 successively; Said suction end base 4 carries out subdivision by the vertical split surface 20 with second of the first vertical split surface 19 with cylinder block 2 and cylinder block 2 respectively with the joint of exhausting end base 1; Intakeport 10 is positioned at described suction end base 4 tops, and relief opening 15 is positioned at described exhausting end base 1 bottom; On described cylinder block 2 and exhausting end base 1, be respectively equipped with the first independent water interlayer 12 and the second independent water interlayer 13; The described first independent water interlayer 12 and the second independent water interlayer 13 respectively be placed in cylinder block 2 on first cooling water inlet 17 link to each other with second cooling water inlet 18 on being placed in exhausting end base 1; Be respectively equipped with suction end base symmetric form return line 14 and exhausting end base symmetric form return line 11 in described suction end base 4 and exhausting end base 1 bottom; On described intakeport 10, mouth spray 16 is set; In described housing, comprise: female rotor 9 and male rotor 3; 6 supportings place in the host shell described female rotor 9 with the male rotor bearing by female rotor bearing 7 respectively with male rotor 3; The multiple tracks carbocyclic ring sealing 5 that is provided with on the sealing 8 of multiple tracks carbocyclic ring through being provided with on the female rotor and the male rotor respectively between described female rotor bearing 7 and male rotor bearing 6 and the rotor compression cavity is separated.

The utility model is a kind of high pressure that is applicable to, the helical-lobe compressor of big flow coke-stove gas supercharging has following characteristics:

1, between bearing and rotor cavity, adopts the sealing of multiple tracks carbocyclic ring, can prevent effectively that coke-stove gas and freezing mixture from getting into bearing lubricant oil is polluted, improve the reliability of unit.

2, adopt horizontal type structure, have better seal property, can adapt to the high pressure occasion.

3, adopt the enterprising gas flow form that goes out down, effectively condensate drain prevents that simultaneously impurity such as naphthalene, tar and solid particle from accumulating in compressor casing.

4, adopt independently two water interlayers respectively at cylinder body and exhausting end base; Can effectively cool off cylinder body and exhausting end base; Guarantee that less amount of deformation takes place for cylinder body and exhausting end base in running, effectively control the gap of rotor and cylinder body and exhausting end base, guarantee unit operation safety.Two water interlayers can be regulated the reasonable distribution cooling water amount according to actual conditions respectively to cooling simultaneously.

5, be respectively equipped with the symmetric form return line at suction end base and exhausting end base bottom, can select the oil return path according to field demand.

In actual moving process, oven gas gets into helical-lobe compressor by intakeport, gets into the between cog volume that yin, yang rotor and cylinder block form, and is discharged by relief opening after compression.In compression process, simultaneously by the mouth spray on the intakeport, in intakeport, spray into cooling liquid, the compression process of coke-stove gas is cooled off.

Claims

1. a coke-stove gas SCREW COMPRESSOR is characterized in that comprising: housing; Described housing is a horizontal type structure; Described housing is made up of suction end base, cylinder block and exhausting end base successively; Said suction end base carries out subdivision by the vertical split surface with second of the first vertical split surface with cylinder block and cylinder block respectively with the joint of exhausting end base; Intakeport is positioned at described suction end base top, and relief opening is positioned at described exhausting end base bottom; On described cylinder block and exhausting end base, be respectively equipped with the first independent water interlayer and the second independent water interlayer; The described first independent water interlayer and the second independent water interlayer respectively be placed in cylinder block on first cooling water inlet link to each other with second cooling water inlet on being placed in exhausting end base; Be respectively equipped with suction end base symmetric form return line and exhausting end base symmetric form return line at described suction end base and exhausting end base bottom; On described intakeport, mouth spray is set; In described housing, comprise: female rotor and male rotor; Described female rotor and male rotor are placed in the host shell by female rotor bearing and the supporting of male rotor bearing respectively; The multiple tracks carbocyclic ring sealing that is provided with on the sealing of multiple tracks carbocyclic ring through being provided with on the female rotor and the male rotor respectively between described female rotor bearing and male rotor bearing and the rotor compression cavity is separated.