CN204921299U - Reciprocating type natural gas compressor barring booster unit - Google Patents

Abstract

The utility model discloses a reciprocating type natural gas compressor barring booster unit, including speed change mechanism, operation spanner, speed change mechanism carries out gear engagement through the output of self and the flywheel of reciprocating type natural gas compressor barring unit, and then passes through the input attended operation spanner of self. Speed change mechanism is including carrying out the first gear, second gear, the third gear that mesh in proper order, third gear teeth number is greater than the second gear, and second gear teeth number is greater than first gear. First gear, second gear, third gear all set up inside protective housing, first gear, second gear, third gear assemble at the primary shaft, secondary shaft, third epaxially respectively, the primary shaft, secondary shaft, third axle set up on the protective housing lateral wall through respective bearing respectively. Can be in the other installation of unit flywheel, simple and convenient operation, artifical pulling handle bar enlargies the rotation that realizes the flywheel with the effort through the gear train, realizes the purpose of unit safety barring.

Description

Reciprocating Natural Gas Compressor jiggering power assisting device

Technical field

The utility model relates to Reciprocating Natural Gas Compressor, specifically Reciprocating Natural Gas Compressor jiggering power assisting device.

Background technique

Dongying compressor station is natural gas processing center on the south the Yellow River, and year supplies rock gas 1.9 × 10 outward ⁸m ³, produce lighter hydrocarbons 0.8 × 10 ⁴t, is responsible for the outer defeated vital task of producing with lighter hydrocarbons of Shengli Oil Field rock gas.Existing three the DPC-2804 units in this Zhan Qianleng hilllock, are introduced in October, 2004 by storehouse C Compaq of the U.S., the reciprocal compressor group be made up of four rams and three compression cylinders.This unit serves as the task of rock gas precooling in lighter hydrocarbons production process, drops to less than-30 DEG C by natural gas temperature, lowers the temperature further lay important foundation for rock gas.In addition, this unit, during centrifugal natural gas compressor maintenance or disorderly closedown, is responsible for the substantial responsibility of outer defeated rock gas.

Before startup unit, generally need with manpower by a few for flywheel turns circle, in order to judge whether have stuck and situation that is resistance increase by the load driven (namely mechanical or drive part), thus the startup load of unit can not be made excessive and damage unit.So, generally after shutdown class (8 hours), when restarting unit, a few circle jiggering will be shifted to an earlier date.

Similar implementation:

DPC-2804 unit adopts gas engine as power, needs the power of startup gas as starting motor of 1.0-1.2Mpa during startup.Compressor station normal productive process, because the outlet pressure of expansion machine of lighter hydrocarbons facilities controls automatically at about 1.1Mpa, can ensure the supply of DPC-2804 unit starting gas at any time.But when centrifuge stops suddenly, just lose so stable startup source of the gas, and the source of the gas of unit starting can be provided only to remain the pressure of outer defeated pipe network, the pressure of outer defeated pipe network fluctuates at 0.4-1.1Mpa every day, time higher than 1.0Mpa only has 3,4 hours, most of the time pressure is lower, cannot meet the starting condition of compressor.When centrifuge normally runs, DPC-2804 unit is carrying out refrigerating operaton, generally only need run one, when centrifuge stops in emergency, in order to can by other two DPC-2804 unit startings, the emergency mode that we take is with the outer defeated associated gas of unique compressor run, and makes gas enter fuel gas system, more manually turns down outer defeated valve (actual is that compressor outlet builds the pressure) and adjust fuel gas pressure.This mode needs three people to cooperate: the unit of the outer gas transmission of one man operation, the unit that one man operation will start, the outer gas transmission valve of one man operation, this mode needs three people's good teamworks, slightly error just may cause compressor superpressure to stop, once there is the passive situation of this three unit full cut-ofves, just can only close isolated island gas and to enter the station valve, isolated island is carried out atmospheric pressure to improve, startup gas is provided.And this passive mode often will wait 1-2 hour.

For above problem, propose, about the suggestion of " DPC-2804 starts gas workflow reengineering ", to increase and build a set of startup gas safeguards system, provide stable, a ready-to-use startup source of the gas to DPC-2804 unit, ensure that unit starts at any time, make the unit for subsequent use that 2804 really become centrifuge.In order to give DPC-2804 unit provide one stable, ready-to-use startup source of the gas, according to the technological process of startup gas, analyze after deliberation, propose the solution of science, concrete technology flow chart is as shown in Figure 1: transform DPC-2804 emergency starting flow process, increase and build a set of startup gas safeguards system, utilize original vertical ground tank as reservoir vessel, reservoir inlet is connected with lighter hydrocarbons facilities 503 external transport pipeline, obtain the startup source of the gas of the cleaning of 2.6MPa, outlet is connected with DPC-2804 fuelgas pipeline, and by give after Self-driven pressure-adjusting valve decompression DPC-2804 unit provide one stable, ready-to-use startup source of the gas.

The first, the existing 3 reciprocating natural gas compressors of Dongying compressor station, operated more than 10 years.Before startup unit, generally need with manpower by a few for flywheel turns circle, in order to judge whether have stuck and situation that is resistance increase by the load driven (namely mechanical or drive part), thus the startup load of unit can not be made excessive and damage unit.So, generally after shutdown class (8 hours), when restarting unit, a few circle jiggering will be shifted to an earlier date.

Second, in jiggering operating process originally, the positioning hole mainly afterburning thick stick being inserted flywheel side carrys out flywheel driven with manpower completely and rotates, the quality of flywheel is greatly about about 1 ton, add the resistance of unit internal piston bar, cause very large difficulty to operative, Qian Leng hilllock female employee's number accounts for over half, increases operation easier especially.Because flywheel mass is large and resistance is large, if afterburning thick stick could not block in the air in location, once afterburning thick stick ejects will cause personal injury to operator, overexerts and also may damage the back of employee.

Model utility content

The purpose of this utility model is to provide Reciprocating Natural Gas Compressor jiggering power assisting device, can in the other installation of unit flywheel, easy operation, this device mainly passes through welding with Checkered Steel Plate, steel pipe, angle bar, bearing and gear, assembles, manually pull hand lever through gear train, active force to be amplified the rotation realizing flywheel, realize the object of unit safety jiggering.

In order to reach above-mentioned purpose, the utility model have employed following technological scheme, Reciprocating Natural Gas Compressor jiggering power assisting device, comprise gear, operation spanner, described gear carries out gears meshing by the output terminal of self and the flywheel of Reciprocating Natural Gas Compressor jiggering unit, and then passes through the input end attended operation spanner of self.

Described gear comprises the first gear, the second gear, the 3rd gear that carry out successively engaging, and the number of teeth of described 3rd gear is greater than the second gear, and the number of teeth of the second gear is greater than the first gear.

Described first gear, the second gear, the 3rd gear are all arranged on guard shield inside, described first gear, the second gear, the 3rd gear are assemblied on the first axle, the second axle, the 3rd axle respectively, and described first axle, the second axle, the 3rd axle are located on guard shield sidewall respectively by respective bearing bracket stand.

Described first axle passes guard shield and is connected with operation spanner, and described 3rd axle assembles the 4th gear after passing guard shield, and the flywheel of described 4th gear and Reciprocating Natural Gas Compressor jiggering unit carries out gears meshing.

Be fixed on base by supporting post below described guard shield, base adopts Checkered Steel Plate to make.

Compared to prior art, the utility model has following beneficial effect:

One is that jiggering is carried out in the amplification realizing active force by gear train, change the form of the jiggering in the past using afterburning thick stick, allow to post employee, especially concerning female employee, very difficult jiggering operation becomes more easily, more simply, everyone can complete jiggering operation preferably; Two is this mode of operation safe and convenients more, and avoid that afterburning thick stick is hurted sb.'s feelings, pulling appears in employee back etc. can cause the situation of personal injury, protects the personal safety of employee, promotes safety in production.

1. utilize gear train to carry out amplification power, realize convenient jiggering; 2. adopt the technology of speeder wrench to make operation more easily quick; 3., except operation spanner, all running mechanical parts all, in the guard shield closed, avoid personal injury.

It is all that common material passes through welding, assembles that this Reciprocating Natural Gas Compressor jiggering power assisting device adopts, and is easy to make, is convenient to promote.

This Reciprocating Natural Gas Compressor jiggering power assisting device is a casing, and main gear train, bearing are all in casing.Have supporting frame outside casing, the height of supporting frame is consistent with the center height of flywheel, and can be stabilized on the operating table of unit.

This Reciprocating Natural Gas Compressor jiggering assistant device is designed with 1 operation spanner, and this spanner is designed to the form of speeder wrench, produces active force, be convenient to the use of workman when can only operate in the counterclockwise direction.

There are 3 gears this Reciprocating Natural Gas Compressor jiggering power assisting device inside, and there is a gear outside, by gearing, the active force of spanner is changed into the flywheel turns of outside gear driven unit, realizes convenient jiggering.

The utility model mainly lays particular emphasis on solution before driving, how to complete jiggering operation faster, so that next step implements normal driving, before the technology of section 1 has mainly ensured DPC-2804 unit starting, fuel gas condition meets driving requirement; The utility model mainly designs enforcement from mechanical motion angle, for the operation of employee is provided convenience.

Accompanying drawing explanation

Fig. 1 is DPC-2804 unit starting air-flow journey reforming technology schematic diagram

Fig. 2 is the structural representation of Reciprocating Natural Gas Compressor jiggering power assisting device of the present utility model;

Fig. 3 is Fig. 2 side view.

In figure: operation spanner 1, guard shield 2, first axle 3, second axle 4, the 3rd axle 5, first gear 6, second gear 7, the 3rd gear 8, the 4th gear 9, base 10, flywheel 11.

Embodiment

Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.

According to Fig. 1, Reciprocating Natural Gas Compressor jiggering power assisting device, first axle 3, second axle 4, the 3rd axle 5, first gear 6, second gear 7, the 3rd gear 8 are all inner at guard shield 2, pinion rotation can be avoided to damage operator, dust etc. can also be reduced and enter gear and axle connection part causes gear, the running of axle has some setbacks.

Operation spanner 1 is connected by the first axle 3 with the first gear 6, transmission; Second gear 7 is fixed on the second axle 4; 3rd gear 8 is fixed on the 3rd axle 5, drives the 4th gear 9 be fixed on the 3rd axle 5 to rotate during rotation.

Base 10 adopts Checkered Steel Plate to make, and can increase friction, and when avoiding operating, the situation of all around moving appears in this device on the operating table of unit.

First guarantee that the 4th gear 9 engages completely with the flywheel 11 of unit when carrying out jiggering operation, then counterclockwise rotating operation spanner 1 is prolonged by operator, operation spanner 1 drives the first gear 6 to rotate by the first axle 3, first gear 6 drives the second gear 7 to rotate, second gear 7 drives the 3rd gear 8 to rotate, and the 3rd gear 8 drives the 3rd axle 5 to rotate, and the 4th gear 9 on the 3rd axle 5 rotates, 4th gear 9 flywheel driven 11 rotates, and finally completes jiggering operation.

The first, the existing 3 reciprocating natural gas compressors of Dongying compressor station, operated more than 10 years.Before startup unit, generally need with manpower by a few for flywheel turns circle, in order to judge whether have stuck and situation that is resistance increase by the load driven (namely mechanical or drive part), thus the startup load of unit can not be made excessive and damage unit.So, generally after shutdown class (8 hours), when restarting unit, a few circle jiggering will be shifted to an earlier date.Therefore this technological innovation is exactly the device that making one can contribute to completing fast jiggering operation.

Second, in jiggering operating process originally, the positioning hole mainly afterburning thick stick being inserted flywheel side carrys out flywheel driven with manpower completely and rotates, the quality of flywheel is greatly about about 1 ton, add the resistance of unit internal piston bar, cause very large difficulty to operative, Qian Leng hilllock female employee's number accounts for over half, increases operation easier especially.Because flywheel mass is large and resistance is large, if afterburning thick stick could not block in the air in location, once afterburning thick stick ejects will cause personal injury to operator, overexerts and also may damage the back of employee.Therefore this technological innovation is exactly the generation that making one thoroughly can avoid this accident, can also alleviate the working strength instrument of workman.

If require further improvement the technical program, we think and can consider from the power source angle how improveing jiggering, this sets of plan still needs artificial complete operation, if can change power source into electric power etc. will further improve the current state of the art at present.But because DPC-2804 unit internal compression medium is propane and rock gas, adding outward at unit provides the installations and facilities of the power sources such as electric power to need to be verified from equipment essential safety, employee's handling safety, the safe equal angles of process operation, guarantees to there is not safety problem.

The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.

Claims (5)

1. Reciprocating Natural Gas Compressor jiggering power assisting device, it is characterized in that, comprise gear, operation spanner, described gear carries out gears meshing by the output terminal of self and the flywheel of Reciprocating Natural Gas Compressor jiggering unit, and then passes through the input end attended operation spanner of self.

2. Reciprocating Natural Gas Compressor jiggering power assisting device according to claim 1, it is characterized in that, described gear comprises the first gear, the second gear, the 3rd gear that carry out successively engaging, the number of teeth of described 3rd gear is greater than the second gear, and the number of teeth of the second gear is greater than the first gear.

3. Reciprocating Natural Gas Compressor jiggering power assisting device according to claim 2, it is characterized in that, described first gear, the second gear, the 3rd gear are all arranged on guard shield inside, described first gear, the second gear, the 3rd gear are assemblied on the first axle, the second axle, the 3rd axle respectively, and described first axle, the second axle, the 3rd axle are located on guard shield sidewall respectively by respective bearing bracket stand.

4. Reciprocating Natural Gas Compressor jiggering power assisting device according to claim 3, it is characterized in that, described first axle passes guard shield and is connected with operation spanner, described 3rd axle assembles the 4th gear after passing guard shield, and the flywheel of described 4th gear and Reciprocating Natural Gas Compressor jiggering unit carries out gears meshing.

5. Reciprocating Natural Gas Compressor jiggering power assisting device according to claim 3, is characterized in that, be fixed on base below described guard shield by supporting post, and base adopts Checkered Steel Plate to make.