CN218884827U - Wrong-opening measuring device for dry gas sealing cavity of compressor - Google Patents

Abstract

The application provides a compressor dry gas seal cavity stagger measuring device, wherein a caliper main body is arranged in a vernier seat in a sliding mode, a fastener is arranged on the caliper main body and used for fixing the caliper main body, one end of the caliper main body is of a wedge-shaped structure, the top of the caliper main body is a first measuring end, a measuring block is arranged at the front end of the vernier seat, one end of the measuring block is of the wedge-shaped structure, the top of the measuring block is a second measuring end, and the first measuring end and the second measuring end are in line contact; the utility model discloses the first measuring end and the second measuring end of device front end set up the line contact to the width of first measuring end and second measuring end is less, can realize laminating the facet position both sides respectively, realizes measuring the facet mismatch of annular curved surface department, satisfies the user demand, can the accurate measurement go out the concrete numerical value of dry gas seal chamber portion facet mismatch, and simple structure is suitable for convenient.

Description

Wrong-opening measuring device for dry gas sealing cavity of compressor

Technical Field

The application belongs to the technical field of compressor detection, and particularly relates to a metering device for a stagger of a dry gas seal cavity of a compressor.

Background

In the horizontally split centrifugal compressor, when the upper casing and the lower casing are buckled, the split surface in the dry gas seal cavity is staggered due to slight deformation of the casings or deviation of precision of positioning pins. This can lead to failure of the dry gas seal to install or leakage of gas. The size of the stagger numerical value is limited due to the space and is an arc surface concave-convex stagger, so that the measurement cannot be carried out, and the quantitative analysis cannot be carried out by the specific size of the stagger numerical value. The method can not provide specific mismatch values for dry gas sealing manufacturers, and can not judge whether the quality required by the manufacturers is achieved.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will solve provides a compressor dry gas seal chamber mismatch measuring device, the first measuring end and the second measuring end of device front end set up the line contact, and the width of first measuring end and second measuring end is less, can realize laminating the mid-split face both sides respectively, the realization is measured the split face mismatch of annular curved surface department, satisfy the user demand, can the accurate concrete numerical value that measures dry gas seal chamber part face mismatch, moreover, the steam generator is simple in structure, and is suitable for conveniently.

In order to solve the above problems, the present application provides a device for measuring the misalignment of a dry gas sealed cavity of a compressor, which includes a vernier seat, a caliper main body, a fastener, a measuring block, a first measuring end and a second measuring end;

the slide caliper rule main part slide set up in the slide caliper rule seat, the fastener set up in the slide caliper rule main part, it is right to be used for the slide caliper rule main part is fixed, slide caliper rule main part one end is the wedge structure, and its top is first measuring end, the slide caliper rule front end is provided with the measuring block, measuring block one end is the wedge structure, and its top is the second measuring end, first measuring end and second measuring end are line contact.

Optionally, the caliper body is provided with a measuring scale, and the vernier seat is provided with a vernier scale.

Optionally, when the measurement scale start value coincides with the cursor scale start value, the first measurement end is in contact with the second measurement end.

Optionally, the length of the measurement scale is 6cm.

Optionally, the vernier scale has 50 divisions.

Optionally, the length of the caliper body is 8-12cm.

Optionally, the caliper body length is 10cm.

Optionally, the measuring block and the cursor seat are of an integrally formed structure.

Optionally, the fastener is a fastening screw.

Advantageous effects

The embodiment of the utility model provides a compressor dry gas seal chamber mismatch measuring device, the first measuring end and the second measuring end of device front end set up the line contact to the width of first measuring end and second measuring end is less, can realize laminating the mid-plane both sides respectively, realizes measuring the facet mismatch of toroidal curved surface department, satisfies the user demand, can the accurate measurement go out the concrete numerical value of dry gas seal chamber portion facet mismatch, moreover, the steam generator is simple in structure, and is suitable for conveniently.

Drawings

Fig. 1 is a structural diagram of a device for measuring a misalignment of a dry gas seal cavity of a compressor according to an embodiment of the present application;

fig. 2 is a rear view structural diagram of a misalignment measuring device of a dry gas seal cavity of a compressor according to an embodiment of the present application.

The reference numbers are given as:

1. a cursor seat; 2. a caliper body; 3. a fastener; 4. a measuring block; 5. a first measuring end; 6. a second measuring end; 7. measuring scales; 8. and (5) vernier graduation.

Detailed Description

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

Referring to fig. 1-2 in combination, according to an embodiment of the present application, a device for measuring a misalignment of a dry gas sealed cavity of a compressor includes a vernier seat 1, a caliper main body 2, a fastener 3, a measuring block 4, a first measuring end 5, and a second measuring end 6; slide caliper rule main part 2 and slide and set up in slide caliper rule 1, fastener 3 sets up on slide caliper rule main part 2 for fix slide caliper rule main part 2, 2 one end of slide caliper rule main part are the wedge structure, and its top is first measuring terminal 5, and 1 front end of slide caliper rule is provided with measuring block 4, and measuring block 4 one end is the wedge structure, and its top is second measuring terminal 6, and first measuring terminal 5 is the line contact with second measuring terminal 6. This device sets up the first measuring terminal 5 and the second measuring terminal 6 of front end into line contact to the width of first measuring terminal 5 and second measuring terminal 6 is less, can realize laminating the mid surface both sides respectively, can realize satisfying the user demand to the measurement of annular curved surface, can the accurate specific numerical value that measures dry gas seal chamber part face mismatch, and simple structure is suitable for convenient.

Specifically, the gliding installation of slide caliper rule main part 2 can follow slide caliper rule 1 and carry out the horizontal slip in slide caliper rule 1, and fastener 3 is installed at 1 top of slide caliper rule, can fix slide caliper rule main part 2 through fastener 3, avoids measuring to finish the back slide caliper rule main part 2 and takes place to slide and lead to the reading inaccurate, and slide caliper rule main part 2 forms the wedge structure from being close to the front end department to the gradual downward sloping of front end, and the top of wedge structure is the first measuring terminal 5 of slide caliper rule main part 2. The front side of the vernier seat 1 is provided with a measuring block 4, the measuring block 4 gradually inclines upwards from the position close to the front end to form a wedge-shaped structure, the front end of the wedge-shaped structure formed by the measuring block 4 is a second measuring end 6, and the first measuring end 5 is in line contact with the second measuring end 6 when in contact.

When the upper shell and the lower shell of the existing compressor are installed, the situation of split surface and split opening in a dry gas sealing cavity can occur, the split opening position can generate height difference, the dry gas sealing cavity is annular, the height difference of a plane can only be measured by a traditional depth gauge, the device can not be used for curved surfaces, a first measuring end 5 and a second measuring end 6 at the front end of the device are in line contact, the measurement of the port surface is met, the width of the first measuring end 5 and the width of the second measuring end 6 are smaller, the two sides of the split surface can be respectively attached, the split surface and the split opening at the position of the annular curved surface can be measured, the caliper main body 2 and the measuring block 4 are both in wedge-shaped arrangement, the measurement accuracy caused by the contact between other top positions outside the first measuring end 5 and the second measuring end 6 and the annular wall surface is avoided, the caliper main body 2 is fixed through the fastener 3 after the measurement is finished, namely, the accurate measurement of the split surface and the split opening is realized, the data supply required by a manufacturer is ensured, and the production quality is improved.

The caliper main body 2 is provided with a measuring scale 7, and the vernier seat 1 is provided with a vernier scale 8.

When the start value of the measuring scale 7 is coincident with the start value of the vernier scale 8, the first measuring end 5 is in contact with the second measuring end 6.

Specifically, the caliper main body 2 is provided with a measuring scale 7 for measurement, the vernier seat 1 is provided with a vernier scale 8, and when the initial value of the measuring scale 7 coincides with the initial value of the vernier scale 8, the first measuring end 5 is in contact with the second measuring end 6 and is located in a vertical plane. Through 7 initial values of measurement scale and 8 initial values of vernier scale coincide before using like this, can calibrate, avoid appearing wearing and tearing the back, lead to measurement accuracy to appear the error.

The measuring scale 7 is 6cm in length.

The vernier scale 8 has 50 divisions.

Specifically, the total length of the measuring scale 7 is 6cm, the vernier scale 8 has 50 divisions, and when the vernier scale 8 is initially located to coincide with the initial position of the measuring scale 7, the last vernier scale 8 is located 49mm from the measuring scale 7, so that the measuring accuracy can reach 0.02mm. Because the numerical value of the facet stagger phase difference is small and cannot exceed 1mm, the measurement precision can reach 0.02mm, and the requirement of the measurement precision can be met.

The length of the caliper main body 2 is 8-12cm.

The caliper body 2 is 10cm in length.

Specifically, because the compressor main shaft is installed at the center of the dry gas seal cavity, and the space between the compressor main shaft and the seal cavity is less than 150mm, the length of a common measuring scale is too long, and the compressor main shaft and the seal cavity interfere with each other during use and measurement, so that the measurement cannot be carried out. The length of the caliper main body 2 is designed to be 8-12cm, and further, the length of the caliper main body 2 is 10cm, the length is short, and the purpose of measurement can be achieved.

The measuring block 4 and the vernier seat 1 are of an integrated structure.

The fastener 3 is a fastening screw.

The working principle is as follows:

before measurement, the calibration is carried out firstly, so that measurement errors are avoided, and then the surface of the device is wiped clean, so that abrasion caused by dust and impurities is avoided. During the measurement, loosen fastener 3 earlier, make slide caliper rule main part 2 can slide along 1 direction of slide carriage, slide caliper rule main part 2 and measuring block 4 should be perpendicular to survey the surface and the laminating is inseparable, aim at the first measuring terminal 5 of slide caliper rule main part 2 and divide the surface upper housing position in the middle, measuring block 4 second measuring terminal 6 aims at the lower casing and divide the surface position in the middle, the less measurement that can realize the camber face of first measuring terminal 5 and the 6 widths of second measuring terminal, and slide caliper rule main part 2 front end and measuring block 4 front end are the wedge, the front end of slide caliper rule main part 2 and the front end of measuring block 4 contact with other positions of casing and lead to measuring inaccurate when avoiding measuring. And 2 length of slide caliper rule main part are 8cm, and are less for traditional chi length, appear interfering with the compressor main shaft when avoiding measuring, influence measuring result. After first measuring end 5 and the 6 equal inseparable backs of second measuring end, screw up fastener 3 and fix caliper main part 2, then 2 scales of sight perpendicular to caliper main part carry out the reading, suitably increase the measurement number of times to take the average value, be minute wrong mouthful numerical value promptly, can reduce measuring error.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (9)

1. A device for measuring the dislocation of a dry gas sealing cavity of a compressor is characterized by comprising a vernier seat (1), a caliper main body (2), a fastener (3), a measuring block (4), a first measuring end (5) and a second measuring end (6);

slide caliper rule main part (2) slide set up in slide caliper rule seat (1), fastener (3) set up in on slide caliper rule main part (2), be used for right slide caliper rule main part (2) are fixed, slide caliper rule main part (2) one end is the wedge structure, and its top is first measuring terminal (5), slide caliper rule seat (1) front end is provided with measuring block (4), measuring block (4) one end is the wedge structure, and its top is second measuring terminal (6), first measuring terminal (5) are line contact with second measuring terminal (6).

2. The compressor dry gas seal cavity stagger measuring device according to claim 1, wherein the caliper main body (2) is provided with a measuring scale (7), and the vernier seat (1) is provided with a vernier scale (8).

3. The compressor dry gas seal cavity stagger measuring device according to claim 2, wherein the first measuring end (5) is in contact with the second measuring end (6) when the starting value of the measuring scale (7) coincides with the starting value of the vernier scale (8).

4. The compressor dry gas seal cavity stagger measuring device according to claim 2, wherein the length of the measuring scale (7) is 6cm.

5. The compressor dry gas seal cavity stagger measuring device according to claim 2, wherein the vernier scale (8) has 50 divisions.

6. The compressor dry gas seal cavity mismatch measuring device according to claim 1, wherein said caliper body (2) has a length of 8-12cm.

7. The compressor dry gas seal cavity mismatch measuring device according to claim 6, wherein said caliper body (2) has a length of 10cm.

8. The compressor dry gas seal cavity stagger measuring device according to claim 1, wherein the measuring block (4) and the cursor seat (1) are an integrally formed structure.

9. The compressor dry gas seal cavity stagger measuring device according to claim 1, wherein the fastener (3) is a fastening screw.

Images