Tool for measuring closing time of steam extraction check valve of 330MW unit

Abstract

The utility model discloses a tool for detecting closing time of a steam extraction check valve of a 330MW unit, which comprises a mounting plate, folding rods and a detection frame, the mounting plate is arranged in an L-shaped structure, the folding rods comprise a first folding rod, a second folding rod, a third folding rod and a fourth folding rod which are continuously hinged, the detection frame is arranged in a C-shaped structure, and the detection frame is arranged on the mounting plate. The two ends of the detection frame are oppositely provided with spring screws which are distributed in a flush mode. According to the utility model, the risk of misoperation of personnel is reduced, the frequency of equipment contact is reduced, the potential safety hazard caused by misoperation is avoided, the data accuracy can still be kept in long-time use, the operation steps are simplified, the construction quality is effectively improved, reliable data are provided, and potential problems can be found in time when needed; and the safety and the reliability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of 330MW unit steam extraction check valve measure closing time tools. BACKGROUND

[0002] Steam extraction check valve is important component of unit operation, and its accurate measurement of closing time is crucial for ensuring the safe operation of equipment. In order to ensure the safe operation of the unit, it is necessary to measure the closing time of the pneumatic steam extraction check valve, and the company usually uses an electronic stopwatch to measure it. The joint of the electronic stopwatch needs to be connected to the valve switch position respectively, which is a relatively cumbersome operation. Although the electronic stopwatch can accurately measure and intuitively display the measurement time, the valve and the electronic stopwatch cannot be reliably connected, which can easily cause distortion of the measured closing time.

[0003] In order to improve the accuracy of the pneumatic steam extraction check valve closing time measurement and enhance the convenience of operation, the original connection method needs to be changed, and innovation is imperative. SUMMARY

[0004] The utility model mainly solves the technical problem to provide a kind of 330MW unit steam extraction check valve measure closing time tools, reduce personnel misoperation risk, reduce the frequency of contact equipment, avoid the security risk caused by operation failure, ensure that data accuracy can still be maintained in long time use and simplify the operation steps, effectively improve the construction quality, provide reliable data, can find potential problems in time when needed, improve the safety and reliability of equipment.

[0005] To solve the above technical problems, one technical scheme of the utility model is provided: a kind of 330MW unit steam extraction check valve measure closing time tools, including mounting plate, folding rod and detection frame, the mounting plate is arranged in L type structure, the horizontal end face of the mounting plate is provided with fixed hole, and the vertical end face is provided with first connecting hole, the folding rod includes continuously hinged first folding rod, second folding rod, third folding rod and fourth folding rod, the outer side end of the first folding rod is connected with the first connecting hole, the detection frame is arranged in C type structure, the middle connecting end side of the detection frame is provided with second connecting hole, and the outer side end of the fourth folding rod is connected with the second connecting hole, the both ends of the detection frame are provided with spring screw rod distributed in flush.

[0006] In a preferred embodiment of the utility model, the fixed hole is arranged in the form of a strip hole in the length direction of the horizontal end face.

[0007] In a preferred embodiment of the utility model, the first connecting hole is arranged at intervals in the length direction of the vertical end face.

[0008] In a preferred embodiment of the utility model, the hinged end of the first folding rod and the second folding rod is provided with a first inner hexagonal bolt, the hinged end of the second folding rod and the second folding rod is provided with a second inner hexagonal bolt, and the hinged end of the third folding rod and the fourth folding rod is provided with a third inner hexagonal bolt.

[0009] In a preferred embodiment of the utility model, a gasket and a gasket are arranged on the first folding rod and are attached to the mounting plate, a first step surface is arranged at the contact position between the inner end of the first folding rod and the gasket, an internal thread is arranged in the end of the first folding rod, and the other side of the mounting plate is connected and fixed with the internal thread of the first folding rod through a first toothed bolt.

[0010] In a preferred embodiment of the utility model, a plurality of second connecting holes are arranged at equal intervals in the length direction of the detection frame.

[0011] In a preferred embodiment of the utility model, an external thread is arranged on the fourth folding rod, the fourth folding rod is connected and fixed on the other side of the detection frame through a locking nut through the second connecting hole, and a second step surface is arranged at the contact position between the inner end of the fourth folding rod and the detection frame.

[0012] The utility model discloses a kind of 330MW unit steam extraction check valve measure closing time's tool, reduce personnel misoperation risk, reduce the frequency of contact equipment, avoid the security risk brought by operation error, ensure that still can keep data accuracy in long time use and simplify operation step, effectively improve construction quality, provide reliable data, can find potential problems in time when needed, improve the security and reliability of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:

[0014] Figure 1 It is the structure diagram of a preferred embodiment of the utility model one 330MW unit steam extraction check valve measure closing time's tool;

[0015] Figure 2 It is Figure 1 the front face partial section view of the mounting plate of

[0016] Figure 3 It is Figure 1 the partial enlarged section view of A part of

[0017] Figure 4 is Figure 1 a left view of the detection frame of

[0018] Figure 5 is Figure 1 a partial enlarged sectional view of part B of DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Please refer to Figures 1-5 , the embodiments of the present application include:

[0021] A tool for measuring closing time of a 330MW unit steam extraction check valve, comprising a mounting plate 1, a folding rod and a detection frame 2.

[0022] Among them, the mounting plate 1 is provided in an L-shaped structure, and a fixing hole 3 is arranged on the transverse end face of the mounting plate 1 for fixing at the bottom. The fixing hole 3 is arranged in a strip shape on the length direction of the transverse end face, so as to adjust the installation position in the horizontal direction.

[0023] A first connecting hole 4 is arranged on the longitudinal end face of the mounting plate 1, and a plurality of first connecting holes 4 are arranged at equal intervals on the length direction of the longitudinal end face, so as to adjust the installation position in the longitudinal direction.

[0024] The folding rod comprises a first folding rod 5, a second folding rod 6, a third folding rod 7 and a fourth folding rod 8 which are continuously hinged. The folding of the first folding rod 5, the second folding rod 6, the third folding rod 7 and the fourth folding rod 8 can meet the use requirements of different lengths.

[0025] A first inner hexagonal bolt 9 is arranged on the hinged end of the first folding rod 5 and the second folding rod 6, a second inner hexagonal bolt 10 is arranged on the hinged end of the second folding rod 6 and the second folding rod 6, and a third inner hexagonal bolt 11 is arranged on the hinged end of the third folding rod 7 and the fourth folding rod 8. After the length requirement is met, the bolts are locked and shaped.

[0026] The outer end of the first folding rod 5 is connected with the first connecting hole 4, so that the folding rod is connected and fixed with the mounting plate 1, and the operation is facilitated.

[0027] A gasket 12 and a gasket 13 are arranged on the first folding rod 5, and the mounting plate 1 is adhered, so as to avoid the inconvenience of locking caused by the excessive length of the first folding rod 5.

[0028] The inner side end of the first folding rod 5 is provided with a first step surface 14 at the contact position of the gasket 12, so as to avoid the influence of the contact between the gasket 12 and the hinged end on the adjustment.

[0029] The end of the first folding rod 5 is concave and is provided with an internal thread, and the other side of the mounting plate 1 is connected and fixed with the internal thread of the first folding rod 5 through a first toothed bolt 15, so as to connect and fix the first folding rod 5 and the mounting plate 1 to form an integrated structure and ensure the stability in use.

[0030] The detection frame 2 is provided in a C-shaped structure to meet the detection requirements.

[0031] The detection frame 2 is made of acrylic plate to avoid affecting the detection.

[0032] The middle connecting end side of the detection frame 2 is provided with a second connecting hole 16, and the outer side end of the fourth folding rod 8 is connected with the second connecting hole 16, so that the detection frame 2 and the folding rod are connected and fixed, and the operation is facilitated.

[0033] The two ends of the detection frame 2 are oppositely provided with spring screws 17 distributed in flush, the spring screws 17 are made of metal, and the spring screws 17 are used to connect the connectors and can be elastically contacted at the position to be detected to realize the measurement of the position to be detected.

[0034] The second connecting hole 16 is provided with a plurality of holes at equal intervals in the length direction of the detection frame 2 to meet the requirements of different installation heights.

[0035] The fourth folding rod 8 is provided with an external thread, and the fourth folding rod 8 is connected and fixed on the other side of the detection frame 2 through a locking nut 18 after passing through the second connecting hole 16, so as to connect and fix the fourth folding rod 8 and the detection frame 2 to form an integrated structure and ensure the stability in use.

[0036] The inner side end of the fourth folding rod 8 is provided with a second step surface 19 at the contact position of the detection frame 2, so as to avoid the influence of the contact between the detection frame 2 and the hinged end on the adjustment.

[0037] In use, the tool is fixed on each fixing point of the steam extraction check valve to complete the fitting. After testing, there is no loosening, and the operator can observe that the tool remains relatively stationary during the closing time test work, and can be applied to different specifications of steam extraction check valves. After use, the operation is reduced from 3 people to 2 people, saving labor cost and being more convenient.

[0038] In conclusion, the utility model points out a kind of 330MW unit extraction check valve closing time's tool, reduce personnel misoperation risk, reduce the frequency of contact equipment, avoid the security risk brought by operating error, ensure that still can keep data accuracy in long time use and simplify the operation steps, effectively improve the construction quality, provide reliable data, can find potential problem in time when needed, improve the security and reliability of equipment.

[0039] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A tool for measuring the closing time of a steam extraction check valve of a 330 MW unit, characterized in that, The utility model provides a kind of installation plate, folding rod and detection frame, the installation plate is arranged in L type structure, the fixed hole is arranged in the transverse end face of installation plate, the first connecting hole is arranged in the longitudinal end face, the folding rod includes first folding rod, second folding rod, third folding rod and fourth folding rod that are continuously hinged, the outer side end of first folding rod is connected with first connecting hole, the detection frame is arranged in C type structure, the second connecting hole is arranged in the middle connecting end side of detection frame, the outer side end of fourth folding rod is connected with second connecting hole, and the spring screw rod of flush distribution is oppositely arranged in both ends of detection frame.

2. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The fixed hole is arranged in the length direction of transverse end face in strip hole.

3. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The first connecting hole is arranged in the length direction of longitudinal end face with multiple.

4. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The hinged end of first folding rod and second folding rod is provided with first inner hexagonal bolt, the hinged end of second folding rod and second folding rod is provided with second inner hexagonal bolt, and the hinged end of third folding rod and fourth folding rod is provided with third inner hexagonal bolt.

5. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The washer and gasket are arranged on the first folding rod and are attached to the installation plate, the contact of the inner side end of first folding rod with washer is provided with first step surface, the end of first folding rod is concave and is provided with internal thread, and the other side of installation plate is connected and fixed with the internal thread of first folding rod by first toothed bolt.

6. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The second connecting hole is arranged in the length direction of detection frame with multiple.

7. The tool for measuring the closing time of the extraction check valve of a 330 MW unit according to claim 1, characterized in that, The fourth folding rod is provided with external thread, the fourth folding rod is connected and fixed on the other side of detection frame by locking nut through second connecting hole, and the contact of the inner side end of fourth folding rod with detection frame is provided with second step surface.

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