Diaphragm valve leakage detection device

Abstract

The utility model discloses a diaphragm valve leakage detection device, and particularly relates to a diaphragm valve, the diaphragm valve leakage detection device comprises a first flange plate on an inlet / outlet port of the diaphragm valve and a second flange plate at the end part of a pipeline, the edges of the second flange plate and the first flange plate are chamfers, and after the end surfaces of the second flange plate and the first flange plate are attached, the two chamfers are combined to form a V-shaped groove; the flange plate further comprises two C-shaped slot plates with ports distributed oppositely, the two C-shaped slot plates are inserted into the second flange plate and the first flange plate which are attached to each other respectively, and the two C-shaped slot plates are in a circular ring shape after the ports are attached to each other. Supporting leg triangular pieces embedded into the V-shaped grooves are symmetrically arranged on the inner wall of the C-shaped slot disc, and an overflowing gap is formed in the adjacent sides of the two supporting leg triangular pieces; a cavity is formed in the C-shaped slot disc, and the cavity is communicated with the flow gap. According to the design of the utility model, the leakage detection device not only has the function of detecting the leakage at the flange, but also can be used as a secondary sealing reinforcing member of the flange interface of the diaphragm valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to a diaphragm valve, concretely relates to a diaphragm valve leak detection device. BACKGROUND

[0002] Diaphragm valve leakage often occurs at the flange interface, because the sealing of the flange interface is realized by a rubber part, and with the aging of the rubber part, the material cannot withstand the hydraulic pressure in the pipeline and leakage occurs, and in the early stage, the leakage is mainly in the form of seepage, and the water output is very fine and difficult to observe with the naked eye, if not treated in time, the water output will gradually increase, and secondly, if the pipeline transports dangerous liquid, the seepage liquid will flow to the ground and enter the shallow water and pollute the surrounding water area with rainfall. SUMMARY

[0003] The utility model discloses a diaphragm valve leak detection device, which is used to solve the above problems.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] A diaphragm valve leak detection device, comprising a first flange plate on the inlet and outlet ports of the diaphragm valve and a second flange plate at the end of the pipeline, the edges of the second flange plate and the first flange plate are chamfered, and after the end faces of the two are attached, the two chamfers combine to form a V-shaped groove;

[0006] It also includes two C-shaped slot plates that are oppositely distributed at the ports, and the two C-shaped slot plates are inserted into the second flange plate and the first flange plate after being attached, and the ports are in the form of a circular ring after being attached;

[0007] The inner wall of the C-shaped slot plate is symmetrically provided with a foot triangular part embedded in the V-shaped groove, and the adjacent side of the two foot triangular parts forms a flow gap;

[0008] A cavity is formed in the C-shaped slot plate, and the cavity is in communication with the flow gap.

[0009] As a preferred, the port of the cavity is provided with a tempered showcase glass.

[0010] As a preferred, the inclined surface of the foot triangular part is fixedly provided with a rubber soft pad, and the rubber soft pad is attached to one chamfer surface of the V-shaped groove.

[0011] As a preferred, the C-shaped slot plate is a PVC part.

[0012] As a preferred, the inner wall of the C-shaped slot plate is fixedly provided with rubber pressure strips symmetrically distributed about the center of the flow gap, and the rubber pressure strips are attached to the side walls of the second flange plate and the first flange plate.

[0013] Preferably, the port of the C-type slot disk is fixedly provided with a bolt fixing seat.

[0014] In the above technical solution, the diaphragm valve leakage detection device provided by this utility model has the following beneficial effects: two C-shaped slot plates are respectively inserted into the combined second flange and the first flange, and then the support triangular piece will be embedded in the V-shaped groove formed by the edge of the mating surface of the second flange and the first flange. If liquid leakage occurs at the flange, it will enter the cavity through the flow gap and be collected, so that it can be detected and dealt with in time by the inspection personnel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. First flange; 2. Second flange; 3. V-groove; 4. C-slot plate; 41. Cavity; 42. Rubber pressure strip; 43. Bolt fixing seat; 5. Support leg triangular piece; 51. Rubber soft pad; 6. Flow gap. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figures 1-2 As shown, a diaphragm valve leakage detection device includes a first flange 1 on the inlet and outlet ports of the diaphragm valve and a second flange 2 at the end of the pipe. The edges of the second flange 2 and the first flange 1 are chamfered, and after the two end faces are put together, the two chamfers combine to form a V-groove 3.

[0022] It also includes two C-shaped slot plates 4 with their ports relatively distributed. The two C-shaped slot plates 4 are respectively inserted into the second flange 2 and the first flange 1 after they are attached, and the ports are attached in a circular shape.

[0023] The inner wall of the C-type slot plate 4 is symmetrically provided with support triangle pieces 5 embedded in the V-shaped groove 3, and the two support triangle pieces 5 form a flow gap 6 on the adjacent side.

[0024] The C-shaped slot plate 4 is provided with a cavity 41, and the cavity 41 is communicated with the flow gap 6.

[0025] Specifically, the port of the cavity 41 in the embodiment is provided with tempered showcase glass, and before construction, the edges of the first flange plate 1 on the inlet and outlet ports of the diaphragm valve and the second flange plate 2 at the end of the pipeline are polished to form a chamfer, so as to realize the V-shaped groove 3 formed by the edges of the combination surface of the second flange plate 2 and the first flange plate 1.

[0026] Further, the inner diameter side wall of the C-shaped slot plate 4 in the embodiment is kept a predetermined distance from the screw cap on the second flange plate 2 and the first flange plate 1, and the section of the C-shaped slot plate 4 is a U-shaped structure.

[0027] In the above technology, the two C-shaped slot plates 4 are respectively inserted on the combined second flange plate 2 and the first flange plate 1, and then the foot triangular member 5 is embedded in the V-shaped groove 3 formed by the edges of the combination surface of the second flange plate 2 and the first flange plate 1. If liquid leakage occurs at the flange, it will enter the cavity 41 through the flow gap 6 and be collected, so that the staff on patrol can timely discover and handle it.

[0028] Further, the inclined surface of the foot triangular member 5 in the above embodiment is fixedly provided with a rubber soft pad 51, and the rubber soft pad 51 is attached to one chamfer surface constituting the V-shaped groove 3. That is to say, after the installation of the C-shaped slot plate 4, the rubber soft pad 51 is attached to one chamfer surface constituting the V-shaped groove 3, so as to form a seal, so that the liquid leaked from the combination surface between the second flange plate 2 and the first flange plate 1 can only enter the cavity 41 through the flow gap 6.

[0029] Secondly, in the above embodiment, the C-shaped slot plate 4 is a corrosion-resistant PVC piece.

[0030] As a further embodiment of the utility model, in combination with Figure 2 As shown in the figure, the inner wall of the C-shaped slot plate 4 in the embodiment is fixedly provided with rubber pressure pulse strips 42 symmetrically distributed about the center of the flow gap 6, and the rubber pressure pulse strips 42 are attached to the side walls of the second flange plate 2 and the first flange plate 1.

[0031] Specifically, if the rubber soft pad 51 is attached to one chamfer surface constituting the V-shaped groove 3 to form a first level seal in the embodiment, then the attachment of the rubber pressure pulse strips 42 / the side walls of the second flange plate 2 and the first flange plate 1 here will form a second level seal.

[0032] It should be noted that the port of the C-shaped slot plate 4 in the embodiment is fixedly provided with a bolt fixing seat 43. Therefore, when the two C-shaped slot plates 4 are installed on the second flange plate 2 and the first flange plate 1, as Figure 1As shown, the bolt can be fixed through the bolt fixing seat 43 and assembled with the nut.

[0033] Secondly, the end surface of the bolt fixing seat 43 in the embodiment is fixedly provided with a rubber pad connected with the rubber pressure pulse strip 42 in an integrated manner, and the rubber pad is combined with the rubber pressure pulse strip 42. Figure 2 It can also be known that the two bolt fixing seats 43 are tightly attached to the sealing surface.

[0034] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the protection scope of the utility model claims.

Claims

1. A diaphragm valve leakage detection device comprising a first flange (1) on the inlet and outlet port of the diaphragm valve and a second flange (2) on the end of the pipe, characterized in that, The edge of the second flange plate (2) and the first flange plate (1) are chamfered, and the two chamfers form a V-shaped groove (3) after the end faces are attached; It also includes two C-shaped slot plates (4) with opposite distribution of ports, which are inserted into the second flange plate (2) and the first flange plate (1) after attachment, and the ports are circular after attachment; The inner wall of the C-shaped slot plate (4) is symmetrically provided with a foot triangular member (5) embedded in the V-shaped groove (3), and the adjacent side of the two foot triangular members (5) forms an overflow gap (6); The C-shaped slot plate (4) is provided with a cavity (41), and the cavity (41) is in communication with the overflow gap (6).

2. A diaphragm valve leak detection apparatus as defined in claim 1, wherein, The port of the cavity (41) is provided with tempered storefront glass.

3. A diaphragm valve leak detection apparatus as defined in claim 1, wherein, The inclined surface of the foot triangular member (5) is fixedly provided with a rubber soft pad (51), which is attached to one chamfered surface of the V-shaped groove (3).

4. The diaphragm valve leak detection apparatus of claim 1, wherein, The C-shaped slot plate (4) is a PVC part.

5. The diaphragm valve leak detection apparatus of claim 1, wherein, The inner wall of the C-shaped slot plate (4) is fixedly provided with rubber pressure pulse strips (42) symmetrically distributed about the center of the overflow gap (6), which are attached to the side walls of the second flange plate (2) and the first flange plate (1).

6. A diaphragm valve leak detection apparatus as defined in claim 1, wherein, The port of the C-shaped slot plate (4) is fixedly provided with a bolt fixing seat (43).

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