CN203350000U

CN203350000U - Pressure test device of guide vane body

Info

Publication number: CN203350000U
Application number: CN 201320371275
Authority: CN
Inventors: 高峰; 肖天成; 熊川泽; 朱遂高
Original assignee: Hubei Tianmen Pump Industry Co Ltd
Current assignee: Hubei Tianmen Pump Industry Co Ltd
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2013-12-18
Anticipated expiration: 2023-06-26

Abstract

The utility model discloses a pressure test device of a guide vane body. The pressure test device mainly comprises a bearing platform, a support column, a base, a guide vane body, an outer flange cover, an inner flange cover, a pressing cover, a gland nut, and etc.. The guide vane is placed on the base; the pressing cover is placed on the outer flange cover; the outer flange cover is placed on the outer flange and contacts within the inner flange cover; the pressing cover and the support column are connected through a hole on the pressing cover, and are tightened through a washer and the gland nut; and an outer cavity of the guide vane is closed, so that water is injected through a water inlet to carry out the pressure test. The pressure test device of the guide vane body is simple in structure, uniform in overall stress, and capable of, through the replacement of the sealing element, carrying out the water pressure test of the guide vane body of a variety of models on the same platform, and can ensure the quality of parts through the hydrostatic pressure test of the cavity body of the guide vane body.

Description

A kind of diffuser pressure testing device

Technical field

The utility model relates to the plant equipment field, refers to particularly a kind of diffuser pressure testing device.

Background technology

Diffuser is the critical component in hydraulic jet propulsion system, be arranged on the exit of water spray system, spout by diffuser outwards sprays current, utilize the reacting force promotion boats and ships of current to advance, diffuser stands washing away of high-velocity flow, require long service life, therefore the requirement of the internal soundness of diffuser is high, during pressure testing, must not have the defects such as infiltration and leakage to occur.

The diffuser blade space is exocoel, middle part is inner chamber, require internal exocoel pressure testing whether up to standard to detect inside and outside quality, generally can carry out respectively pressure testing to exocoel in diffuser, this just requires respectively internally outer chamber to carry out Fixture Design, and wants dismounting once when pressure testing, not only increases manufacturing cost, also expend man-hour, affect the work piece production cycle.

Summary of the invention

The purpose of this utility model is to provide a kind of relatively diffuser pressure testing device of simple and effective, easy disassembly.

A kind of diffuser pressure testing device, comprise bearing platform, support column, base, the outside flange lid, the inner flange lid, friction top, compress card, it is characterized in that: the middle part of described bearing platform is provided with hollow area, support column is fixed on bearing platform by gland nut, base is fixed on bearing platform by bolt of lower base, the inner flange lid is for the diffuser inner flange, the outside flange lid is for contacting on the diffuser outside flange and with the inner flange lid, friction top is placed in outside flange and covers, friction top and support column are connected, outside flange covers to be provided with and compresses card, described water inlet pipe and water outlet pipe is received on the intake-outlet in base by the hollow area in bearing platform.

Described a kind of diffuser pressure testing device is characterized in that: the outside flange lid is equipped with O type circle with the upper and lower end face of inner flange lid.

the utility model has the advantage of:designed friction top is placed on outside flange and covers; friction top and support column are connected; and make the locking of whole device by packing ring and gland nut, make the diffuser exocoel be closed state, by water pressure engine to the seal chamber water filling; after reaching hydraulic pressure, shut down; the anti-sealing of surplus valve is revealed, and after the pressure testing time finishes, the water pressure gauge indication is unchanged; the requisite quality of pressure testing workpiece cavity is described, opens blowdown valve and emit the water in seal chamber.The utility model is simple in structure, whole stressed even, and can on identical platform, by changing respective seals, can carry out the hydraulic testing to the diffuser of Multiple Type, by the diffuser cavity is done to hydrostatic test, guarantees part quality.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The structural representation that Fig. 1 is diffuser (6);

The work schematic diagram that Fig. 2 is the utility model broken section;

Fig. 3 is the utility model inner flange lid (10) sectional structure schematic diagram;

The structural representation that Fig. 4 is the utility model base (3);

The structural representation that Fig. 5 is the utility model bearing platform (1).

Embodiment

As shown in Figure 1, 2, 3, a kind of diffuser pressure testing device, comprise bearing platform 1, support column 2, base 3, O type circle I 4, bolt of lower base 5, diffuser 6, O type circle II 7, outside flange lid 8, O type circle III 9, inner flange lid (10), O type circle IV 11, friction top 12, suspension ring 13, compress card 14, compress card bolt 15, packing ring 16, gland nut 17, support column 2 is fixed on bearing platform 1 by packing ring 16 and gland nut 17, base 3 is fixed on bearing platform 1 by bolt of lower base 5, O type circle I 4 is embedded in base 3 grooves, diffuser 6 is placed on base 3, inner flange lid 10 is placed on diffuser 6 inner flanges, O type circle O type circle III 9 and O type circle IV 11 are embedded in inner flange and cover in 10 grooves, outside flange lid 8 is placed on diffuser 6 outside flanges and with inner flange lid 10 and contacts, O type circle II 7 is embedded in outside flange and covers in 8 grooves, friction top 12 is placed on outside flange lid 8, suspension ring 13 are fixing with friction top 12, friction top 12 is connected with support column 2, compressing card 14 is stuck between outside flange lid 8 and diffuser 6 outside flanges, compress card 14 and compress card bolt 15 locking outside flange lid 8 and diffuser 6 outside flanges, packing ring 16 and gland nut 17 are by the whole device of support column 2 locking, water inlet pipe and water outlet pipe is connected on the intake-outlet in base.

As Fig. 4,5, base 3 is fixed on bearing platform 1 by bolt of lower base 5, diffuser 6 is placed on base, push down O type circle I 4, diffuser 6 is close on base 3, water inlet pipe and water outlet pipe is received on the intake-outlet in base 3 by the hollow area in bearing platform 1, inlet pipeline water receiving press also is equipped with surplus valve, blowdown valve is housed in outlet pipeline, the hydraulic pressure of the tensimeter indicating sealing cavity on water pressure engine, the size and shape of workpiece base 3, inner flange lid 10 and outside flange lid 8 can change according to the size of seal diffuser 6, to adapt to the diffuser of Multiple Type.

The course of work of the present utility model comprises the following steps:

1. base is fixed on bearing platform by bolt of lower base;

2. water inlet pipe and water outlet pipe is received on the intake-outlet in base by the hollow area in bearing platform, and inlet pipeline water receiving press also is equipped with surplus valve, and blowdown valve is housed in outlet pipeline;

3. support column is fixed on bearing platform by packing ring and gland nut;

4. diffuser is placed on base, pushes down O type circle I, and diffuser is close on base;

5. the inner flange lid is placed on the diffuser inner flange, pushes down O type circle III, and inner flange lid lower surface is close on the diffuser inner flange;

6. outside flange lid is placed on the diffuser outside flange and with the inner flange lid and contacts, and pushes down O type circle II and O type circle IV, outside flange is covered tightly be affixed on the diffuser outside flange and inner flange covers end face;

7. compress card and be stuck in equably between outside flange lid and diffuser outside flange, compress card and compress card bolt-locking outside flange lid and diffuser outside flange;

8. friction top is placed on outside flange and covers; and utilize the hole and the support column that are located at friction top to be connected; and make the locking of whole device by packing ring and gland nut, the diffuser exocoel is closed state, by water pressure engine to the seal chamber water filling; after reaching hydraulic pressure, shut down; the anti-sealing of surplus valve is revealed, and after the pressure testing time finishes, the water pressure gauge indication is unchanged; the requisite quality of pressure testing workpiece cavity is described, opens blowdown valve and emit the water in seal chamber.

Although above shown detailed embodiment of the present utility model, those skilled in the art is under prerequisite of the present utility model, can carry out the part modifications and changes; The content of mentioning in description above and accompanying drawing, only as illustrative case, is not limitation of the utility model, and has a kind of diffuser pressure testing device of above-mentioned technical characterictic, all falls into this patent protection domain.

Claims

1. a diffuser pressure testing device, comprise bearing platform, support column, base, the outside flange lid, the inner flange lid, friction top, compress card, it is characterized in that: the middle part of described bearing platform is provided with hollow area, support column is fixed on bearing platform by gland nut, base is fixed on bearing platform by bolt of lower base, the inner flange lid is for the diffuser inner flange, the outside flange lid is for contacting on the diffuser outside flange and with the inner flange lid, friction top is placed in outside flange and covers, friction top and support column are connected, outside flange covers to be provided with and compresses card, water inlet pipe and water outlet pipe is received on the intake-outlet in base by the hollow area in bearing platform.

2. a kind of diffuser pressure testing device according to claim 1 is characterized in that: the outside flange lid is equipped with O type circle with the upper and lower end face of inner flange lid.