CN217210661U

CN217210661U - Opening height measuring device of safety valve

Info

Publication number: CN217210661U
Application number: CN202221182527.7U
Authority: CN
Inventors: 王天柱; 巩建业; 李超; 马雷; 文发龙
Original assignee: Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Current assignee: Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-16
Anticipated expiration: 2032-05-17

Abstract

The application discloses opening height measurement device of relief valve includes: the marking plate is provided with a plane to be marked, and the plane to be marked is arranged along the opening direction of the safety valve; the bracket is used for fixing the marking plate; and the marking head is arranged on a valve position indicator valve rod of the safety valve and is used for forming a straight line on the plane to be marked along the opening direction of the safety valve when the safety valve is opened. According to the opening height measuring device of the safety valve, the marking head can be arranged on the valve position indicator valve rod of the safety valve, and a straight line capable of being measured is marked on the marking plate when the safety valve is opened, so that the opening height of the safety valve is determined. The opening height measuring device of the safety valve of the embodiment of the application has the advantages of simple structure, easiness in processing and manufacturing, convenience in use and capability of solving the problem that the opening height difficulty of the safety valve is large in field measurement.

Description

Opening height measuring device of safety valve

Technical Field

The application belongs to the technical field of safety valves, concretely relates to opening height measuring device of safety valve.

Background

The safety valve is an automatic valve, has an overpressure protection function, is widely applied to multiple industries such as petrifaction and electric power, and plays a very important role in guaranteeing the safe operation of equipment. Especially, a pilot operated safety valve is generally installed in an important system of a nuclear power plant, such as a pressurizer of a pressurized water reactor, a primary loop pressure relief system of a high temperature gas cooled reactor, a main steam system, and the like. To achieve the overpressure protection function of the safety valve, the safety valve must have sufficient discharge capacity, and the opening height is one of the main factors affecting the discharge capacity of the safety valve. Because the safety valve has a fast opening speed during action and is accompanied with the discharge of high-temperature or high-pressure media, the actual opening height during the action is generally difficult to directly measure on site, and the actual opening height of the safety valve is difficult to obtain.

Disclosure of Invention

The utility model aims at providing a high measuring device opens of relief valve, the device simple structure, the processing preparation is easy, and convenient to use can solve the on-the-spot great problem of the high degree of difficulty of opening of measurement relief valve.

The embodiment of the application provides a high measuring device opens of relief valve includes:

the marking plate is provided with a to-be-marked plane, and the to-be-marked plane is arranged along the opening direction of the safety valve;

the bracket is used for fixing the marking plate;

and the marking head is arranged on a valve position indicator valve rod of the safety valve and is used for forming a straight line on the plane to be marked along the opening direction of the safety valve when the safety valve is opened.

In some alternative embodiments, the safety valve opens vertically or horizontally.

In some alternative embodiments, the marking head is a marker pen.

In some optional embodiments, the plane to be marked is provided with scale lines for observing the length of the straight line.

In some optional embodiments, the opening height measuring device of the safety valve further comprises a connecting unit, and the marking head is arranged on a valve position indicator valve rod of the safety valve through the connecting unit.

In some alternative embodiments, the coupling unit includes a first coupling member for mounting the marking head and a second coupling member for coupling to a valve position indicator stem of the safety valve.

In some optional embodiments, the first connecting member is a sleeve configured to be sleeved on the rear end of the marking head.

In some alternative embodiments, the second connector is a C-shaped clamp for sleeving the valve position indicator valve stem of the safety valve.

In some alternative embodiments, a fastening screw is provided on the C-shaped clamp for fastening the C-shaped clamp to a valve position indicator valve stem of the safety valve.

In some optional embodiments, the first connecting piece and the second connecting piece are connected through a connecting rod.

The technical scheme of the application has the following beneficial technical effects:

according to the opening height measuring device of the safety valve, the marking head can be arranged on the valve position indicator valve rod of the safety valve, and a straight line capable of being measured is marked on the marking plate when the safety valve is opened, so that the opening height of the safety valve is determined. The opening height measuring device of the safety valve of the embodiment of the application has the advantages of simple structure, easiness in processing and manufacturing, convenience in use and capability of solving the problem that the opening height difficulty of the safety valve is large in field measurement.

Drawings

Fig. 1 is a schematic structural view of an opening height measuring device of a safety valve in an exemplary embodiment of the present application;

FIG. 2 is a drawing of a marking head forming a line on a surface to be marked in an exemplary embodiment of the present application;

in the figure, 1, marking plate; 1.1, a plane to be marked; 2. a support; 2.1, erecting a rod; 2.2, a base; 3. a marking head; 4. a connection unit; 4.1, a first connecting piece; 4.2, a second connecting piece; 4.3, connecting rods; 5. a safety valve; 5.1, a valve position indicator valve rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings in combination with the specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present application. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present application.

In the description of the present application, it is noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 is a schematic structural view of an opening height measuring device of a safety valve in an exemplary embodiment of the present application. Fig. 2 shows a marking head forming a straight line on a plane to be marked according to an exemplary embodiment of the present application.

Referring to fig. 1 to 2, the present embodiment provides an opening height measuring device for a safety valve 5, including: the safety valve comprises a marking plate 1, wherein a plane 1.1 to be marked is arranged on the marking plate 1, and the plane 1.1 to be marked is arranged along the opening direction of a safety valve 5; the bracket 2 is used for fixing the marking plate 1; and the marking head 3 is arranged on a valve position indicator valve rod 5.1 of the safety valve 5 and is used for forming a straight line on the plane 1.1 to be marked along the opening direction of the safety valve 5 when the safety valve 5 is opened.

Alternatively, in some embodiments, the safety valve 5 opens vertically or horizontally. In specific application, when the safety valve 5 is vertically arranged, a valve rod 5.1 of a valve position indicator vertically acts, and a plane 1.1 to be marked of the marking plate 1 is vertically arranged along the opening direction parallel to the safety valve 5; when the safety valve 5 is horizontally arranged, a valve rod 5.1 of a valve position indicator moves horizontally, and a to-be-marked plane 1.1 of the marking plate 1 can be vertically arranged in the opening direction parallel to the safety valve 5 and also can be horizontally arranged in the opening direction of the safety valve 5. It is to be noted that the opening direction of the safety valve 5 is affected by its posture, and in a specific application, the posture of the marking plate 1 may be determined according to the installation direction of the safety valve 5.

Optionally, in some embodiments, the bracket 2 includes an upright 2.1, the upper end of the upright 2.1 is mounted with the label plate 1, and the lower end of the upright 2.1 is provided with the base 2.2. On this basis, in order to adapt to the place requirement, the base 2.2 can adjust the verticality of pole setting 2.1, exemplarily, base 2.2 is a tripod, and the three legs of tripod are articulated, through adjusting the angle between the three legs, can realize the regulation to the verticality of pole setting 2.1. Further, in order to meet the requirements of different installation heights of the safety valve 5, the height of the marking plate 1 can be adjusted, illustratively, the tripod is in threaded connection with the upright 2.1, and the upright 2.1 can be vertically moved relative to the tripod by rotating the upright 2.1, so that the height of the marking plate 1 can be adjusted. It should be noted that the upright 2.1 and the support may also be hinged, and the embodiment is not limited in particular.

Optionally, in some embodiments, the marking head 3 is a marker pen. In a specific application, the front end of the marker pen is abutted against the surface of the to-be-marked plane 1.1, when the safety valve 5 is opened, the marker pen can mark a straight line on the surface of the to-be-marked plane 1.1, and the length of the straight line can be used for representing the opening height of the safety valve 5. In addition, the writing traces of the marking pen are convenient to erase, the repeated utilization of the marking plate 1 can be ensured, and the cost is saved.

Optionally, in some embodiments, the plane 1.1 to be marked is provided with a scale mark (not shown in the figure) for observing the length of the straight line. Illustratively, the graduation marks are uniformly arranged on the surface of the plane 1.1 to be marked, and the minimum unit of the graduation marks is 1 mm. In specific application, the length of the straight line can be directly determined according to the scale marks corresponding to the two ends of the straight line on the plane 1.1 to be marked, so that the measuring result is more visual and accurate.

Optionally, in some embodiments, the opening height measuring device of the safety valve 5 further includes a connecting unit 4, and the marking head 3 is disposed on a valve position indicator valve rod 5.1 of the safety valve 5 through the connecting unit 4.

Optionally, in some embodiments, the connection unit 4 comprises a first connection 4.1 and a second connection 4.2 connected, the first connection 4.1 being for mounting the marking head 3, the second connection 4.2 being for connection to a valve position indicator valve stem 5.1 of the safety valve 5. It should be noted that the first connecting element 4.1 and the second connecting element 4.2 may be a clamp, a sleeve, etc., and the embodiment is not limited in particular.

Optionally, in some embodiments, the first connector 4.1 is a sleeve for sleeving the rear end of the marking head 3.

Optionally, in some embodiments, a fastening screw is provided on the sleeve for fastening the sleeve to the marking head 3.

Optionally, in some embodiments, the second connector 4.2 is a C-shaped clamp for sleeving the valve position indicator valve rod 5.1 of the safety valve 5.

Optionally, in some embodiments, a fastening screw is provided on the C-shaped clamp for fastening the C-shaped clamp to the valve position indicator stem 5.1 of the safety valve 5.

Optionally, in some embodiments, the first connecting piece 4.1 and the second connecting piece 4.2 are connected by a connecting rod 4.3. Illustratively, the connecting rod 4.3 is a straight rod, so that the distance between the marking head 3 and the safety valve 5 can be increased, the distance between the marking plate 1 and the safety valve 5 is increased, the marking plate 1 is prevented from being polluted by discharged media due to the fact that the marking plate 1 is too close to the safety valve 5, and meanwhile field equipment is convenient to arrange and install.

The use process of the opening height measuring device of the safety valve 5 is as follows:

1. installing a safety valve 5;

2. the marking head 3 is arranged on a valve position indicator valve rod 5.1 of the safety valve 5 through a connecting unit 4, and whether the installation is stable or not is confirmed;

3. after the marking head 3 is installed stably, erecting a bracket 2, and installing the marking plate 1 on the bracket 2;

4. adjusting the position and the posture of the marking plate 1 to enable a to-be-marked plane 1.1 of the marking plate 1 to be abutted against the front end of the marking head 3 and vertically arranged along the opening direction parallel to the safety valve 5;

5. after the safety valve 5 is opened, observing the length of a straight line drawn by the marking head 3 on the plane 1.1 to be marked, and determining the opening height of the safety valve 5 according to the length of the straight line;

6. the straight line drawn by the marking head 3 on the plane 1.1 to be marked is wiped off.

According to the opening height measuring device of the safety valve 5, the marking head 3 can be arranged on the valve position indicator valve rod 5.1 of the safety valve 5, and when the safety valve 5 is opened, a straight line capable of being measured is marked on the marking plate 1, so that the opening height of the safety valve 5 is determined. The opening height measuring device of the safety valve 5 provided by the embodiment of the application has the advantages of simple structure, easiness in processing and manufacturing, convenience in use and capability of solving the problem that the opening height difficulty of the safety valve 5 is large in field measurement.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An opening height measuring device of a safety valve, characterized by comprising:

the bracket is used for fixing the marking plate;

2. The opening height measuring device of a safety valve according to claim 1, wherein the safety valve is opened vertically or horizontally.

3. The opening height measuring device of a safety valve according to claim 1, wherein the marking head is a marker pen.

4. The opening height measuring device of a safety valve according to claim 1, wherein a scale line is provided on the plane to be marked for observing the length of the straight line.

5. The opening height measuring device of a safety valve according to claim 1, further comprising a connecting unit through which the marking head is provided to a valve position indicator stem of the safety valve.

6. The opening height measuring device of a safety valve according to claim 5, wherein the connection unit includes a first connector for mounting the marking head and a second connector for connecting to a valve position indicator stem of the safety valve, which are connected.

7. The opening height measuring device of a safety valve according to claim 6, wherein the first connecting member is a sleeve for fitting over a rear end of the marking head.

8. The opening height measuring device of a safety valve according to claim 6, wherein the second connecting member is a C-shaped clip for being fitted over a valve position indicator stem of the safety valve.

9. The opening height measuring device of a safety valve according to claim 8, wherein a fastening screw is provided on the C-shaped clamp for fastening the C-shaped clamp to a valve stem of a valve position indicator exposure valve of the safety valve.

10. The opening height measuring device of a safety valve according to claim 6, wherein the first connecting member and the second connecting member are connected by a connecting rod.