SU1344951A1 - Gas-pumping set - Google Patents

Abstract

The invention relates to compressor building and allows to expand the range of application and simplify installation and dismantling. The stator 4 is provided with annular chambers (KK) 14 and 15 and an additional groove 16, with the grooves 16 and 6 communicated at the periphery with the outlet nozzle 3. The bypass channel 17 communicated with KK 14 is connected to KK 15 by means of a locking element 18. Connection The working wheels 7 and 8 in parallel and in series allow for two schemes of operation of the unit, and dismantling the wheel 8 is a single-stage version. The arrangement of the inlet and outlet nozzles 2 and 3 on the side surfaces of the housing I allows for easy rewiring. 3 il. С /) с: со 4 4: СО eaten by gas

Description

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The invention relates to composting growth, in particular to gas pumping units.

The aim of the invention is to expand the range of application and simplify assembly and disassembly work.

Figure 1 presents the proposed gas-pumping unit, a longitudinal section; figure 2 is a variant of the Assembly of the unit on a double-flow scheme; on fig.Z - version of the assembly of the unit on a single-stage scheme.

The gas pumping unit includes a housing 1 with an inlet 2 and an outlet 3 with nozzles, installed in the housing 1 a stator 4 with annular grooves 5 and 6, in which the impeller 7 of the first stage and the impeller 8 of the second stage, respectively, are installed; and an integrated motor 10 with a rotor 11 placed between the impellers 7 and 8 and having a channel 2 for the passage of the working medium. The inlet 2 and outlet 3 nozzles are located on the side surface 13 of the housing 1, the stator 4 is provided with annular chambers 14 and 5. At the ends of the housing 1 and an additional groove 16 placed symmetrically with the groove 6 of the impeller 8 of the second gauge and hermetically separated from it, and the groove 6 and 16 are communicated at the periphery with the outlet pipe 3, and in the housing 1 there is an overflow channel 17 communicated with the inlet pipe 2, directly connected to the i4 annular chamber located on the side of the first stage impeller and using the Locking element NTA 18 - 15 with the camera.

Gas pumping unit works as follows.

When the impellers 7 and 8 are connected in series (Fig. 1), the gas enters through the inlet 2, the bypass channel 17 into the annular chamber 4 to the impeller 7, where it is compressed. Zaporshgy eLemep 18 at the same time closed. Then, through the return guide device 9 and the channel 12 in the rotor 1I of the electric motor 10, the gas flows to the impeller 8 (where it is further compressed) and is released into the outlet nozzle 3.

When the impellers 7 and 8 are connected in parallel, a partial

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the new assembly of the unit, while the impeller 8 is installed in the annular groove 16 (FIG. 2). The gas through the inlet 2 and the bypass channel 17 (with the locking element 18 is open), through the annular chambers 14 and 5 enters the impellers 7 and 8, where it is compressed. Then, after the impeller 7, through the return guide device 9, the channel 12 and the annular groove 6, and after the impeller 8, the gas directly enters the outlet 3.

With a single-stage version of the assembly of the unit (fig.Z) impeller 8 is dismantled, and the locking element 18 is closed. When the unit is operating, the gas enters through the inlet pipe 2, the bypass channel 17 and the annular chamber 14 to the working channel 7. Then, through the return guide vane 9, channel 12 and the annular groove 6, the gas is discharged into the outlet pipe 3.

The proposed implementation of the gas pumping unit allows to expand the range of its application by partially re-installing to work on a serial i-shea parallel circuit or in a single-stage version, and the location of the inlet and outlet nozzles on the side: surfaces. enclosures simplify remounting.

Claims (1)

Invention Formula A pumping unit, comprising a housing with inlet and outlet nozzles, a stator with annular grooves mounted therein, in which first and second impellers are mounted, a first stage return guide vane and an integrated electric motor with a rotor located between the impellers and having a channel for the passage of the working medium, characterized in that, in order to expand the range of application and simplify installation and dismantling, the inlet and outlet nozzles are placed on the side surface of the housing, with The tator is equipped with annular chambers located at the ends of the body, and an additional groove, placed symmetrically with the groove of the impeller of the second stu313449514 fines and hermetically separated from it, mediocrely connected with the annular one, the said grooves are connected with a chamber located on the side of the wound of the periphery with the outlet branch pipe of the first stage and with the bypass valve in the casing made by the locking element communicated with inlet pipe, opposite camera. l 1 1 f I y ( VU / VU /// X / /// X  /YU // Y / (ig.2 iSbifsS gas Gas inlet Fig.Z Compiled by N.Ogarko Editor T.Parfenova Tehred I.Popovich Proofreader L.Patay Order 4901/35 Circulation 570 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and loligraphic enterprise, Uzhgorod, st. Project, 4