Vortex shedding flowmeter low-temperature cable protection sleeve

Abstract

The utility model discloses a vortex shedding flowmeter low-temperature cable protection sleeve, and particularly relates to the field of low-temperature air separation, the vortex shedding flowmeter low-temperature cable protection sleeve comprises a sleeve, the port of the first end of the sleeve is respectively provided with a wire inlet groove, a wire outlet groove and a C-shaped groove, the wire inlet groove and the wire outlet groove keep a preset interval, and the C-shaped groove enables the wire inlet groove and the wire outlet groove to be communicated; the adjacent side surfaces of the wire winding plate are respectively provided with a wire clamping gap; and the wire winding plate is fixed on the inner wall, close to the second end, of the sleeve. According to the utility model, the low-temperature cable is fixed in the sleeve, so that the low-temperature cable can provide mechanical protection in a low-temperature environment, the vortex shedding flowmeter has good corrosion resistance, and normal operation of the vortex shedding flowmeter under a low-temperature condition is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature air separation field, concretely relates to a vortex flowmeter low temperature cable protection sleeve. BACKGROUND

[0002] In air separation device, vortex flowmeter is often used for flow measurement of low temperature liquid, and its sensor is located in the pipeline, and low temperature cable needs to pass through cold box plate and be connected to transmitter in normal temperature environment. The existing low temperature cable usually lacks specially designed protection sleeve, so that low temperature signal line or cable is directly exposed outside, is easily influenced by external environment and is damaged, thereby affecting the stability of signal transmission and the accuracy of measurement, and even directly causing equipment damage and unable to measure. In low temperature environment, ordinary materials can lose flexibility, become fragile and easy to break, and mechanical strength significantly decreases, so as to not effectively protect the cable. If there is no proper fixing device, the low temperature cable can be loose or fall off, thereby affecting the accuracy and reliability of measurement. SUMMARY

[0003] The utility model aims at providing a vortex flowmeter low temperature cable protection sleeve to ensure stability under low temperature conditions.

[0004] In order to realize the above object, the utility model provides the following technical scheme: a vortex flowmeter low temperature cable protection sleeve, comprising:

[0005] The sleeve is provided with an inlet slot, an outlet slot and a C-shaped slot which communicates the inlet slot and the outlet slot at a predetermined interval at the first end.

[0006] The winding plate with a wire clamping notch is arranged on the inner wall of the sleeve near the second end.

[0007] Preferably, a first rectangular flange plate is fixedly installed on the port of the first end of the sleeve, and a threaded seat with a larger radius than the sleeve is fixedly arranged on the first rectangular flange plate.

[0008] A large nut is sleeved on the sleeve, an extension is arranged on one side of the port of the large nut, and the outer thread of the extension is threadedly connected with the inner thread of the threaded seat.

[0009] Preferably, an arc-shaped air bag block is arranged on the first rectangular flange plate, and the arc-shaped air bag block is located in the C-shaped slot and is in extrusion fit with the extension threadedly connected.

[0010] Preferably, the arc-shaped air bag block has an arc-shaped surface and an arched side surface according to the structure, the arc-shaped surface faces the C-shaped slot, and the arched side surface faces the inner wall of the threaded seat.

[0011] As preferred, the length of the arc-shaped surface is equal to the length of the C-shaped groove.

[0012] As preferred, a second rectangular flange is fixedly installed on the port section of the second end of the sleeve pipe;

[0013] Further comprising a connecting plate arranged between the second rectangular flange and a base, and the second rectangular flange and the base are assembled by bolts;

[0014] A transmitter is fixedly installed on the base and electrically connected with the low-temperature cable passing through the sleeve pipe.

[0015] As preferred, the connecting plate is a stainless steel piece or an aluminum alloy piece.

[0016] As preferred, the sleeve pipe is a stainless steel piece or an aluminum alloy piece

[0017] As preferred, the wire clamping notch is fixedly provided with a hemispherical convex point on the inner wall of each side of the port.

[0018] As preferred, further comprising a sensor connected in series with the pipeline, the first rectangular flange on the sleeve pipe is fixed on the mounting port of the sensor by bolts, and the low-temperature cable connected on the sensor passes through the sleeve pipe.

[0019] In the above technical solution, the low-temperature cable is passed out from the wire inlet groove, inlaid into the C-shaped groove, and then passed into the sleeve pipe from the wire outlet groove. The other end is clamped into the first wire clamping notch, and then passed out from the second wire clamping notch along the upper surface of the winding plate. Through the fixation of the two ends of the low-temperature cable, the stability of the connection with the sensor and the transmitter is ensured, so as to ensure the normal work of the vortex flowmeter under low-temperature conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The overall structural schematic diagram provided by the embodiment of the present application;

[0022] Figure 2 The explosion structural schematic diagram provided by the embodiment of the present application; Figure 1

[0023] ​Figure 3 The structure schematic diagram of the sleeve pipe provided by the embodiment of the utility model;

[0024] Figure 4 The structure schematic diagram of the sleeve pipe provided by the embodiment of the utility model; Figure 3 The sectional structure schematic diagram of the sleeve pipe provided by the embodiment of the utility model;

[0025] Figure 5 The structure schematic diagram of the sleeve pipe provided by the embodiment of the utility model; Figure 3 The plane structure schematic diagram of the sleeve pipe provided by the embodiment of the utility model.

[0026] Mark explanation:

[0027] 1, low temperature cable; 2, sleeve pipe; 21, incoming line groove; 22, outgoing line groove; 23, C groove; 3, winding plate; 31, wire clamping notch; 311, semispherical convex point; 4, first rectangular flange; 41, threaded seat; 5, large size nut; 51, extension; 6, arc-shaped air bag block; 61, arc surface; 62, arched side surface; 7, connecting plate; 8, transmitter; 9, sensor; 10, second rectangular flange; 11, base; 12, pipeline. Specific implementation

[0028] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0029] As shown in Figures 1-5 A vortex flowmeter low temperature cable protection sleeve pipe, comprising:

[0030] The sleeve pipe 2, the ports of the first end are respectively provided with the incoming line groove 21, the outgoing line groove 22 kept at a predetermined interval and the C groove 23 for connecting the incoming line groove 21 and the outgoing line groove 22;

[0031] The winding plate 3 with wire clamping notches 31 is respectively arranged on the adjacent side surfaces and is fixed on the inner wall of the sleeve pipe 2 close to the second end.

[0032] Specifically, the first end of the sleeve pipe 2 in the embodiment is fixedly installed with the first rectangular flange 4 on the port, and the second end is fixedly installed with the second rectangular flange 10 on the port section.

[0033] The first rectangular flange 4 is fixed on the sensor 9 connected in series on the pipeline 12 by bolts, and the low temperature cable 1 on the sensor 9 is inserted from the inside of the sleeve pipe 2.

[0034] Then the second rectangular flange 10 is attached to the lower surface of the connecting plate 7, and the base 11 is attached to the upper surface of the connecting plate 7, and finally the second rectangular flange 10, the connecting plate 7 and the base 11 are sequentially threaded through by bolts and are integrally connected by nuts and bolts. Then the transmitter 8 is fixed on the base 11 and connected with the low temperature cable 1 inserted from the sleeve pipe 2.

[0035] In the above technology, one end of the low-temperature cable 1 is threaded out of the wire inlet slot 21 and inlaid into the C-shaped slot 23 and then threaded into the sleeve 2 through the wire outlet slot 22. The other end is clamped into the first wire clamping notch 31 and then threaded out of the second wire clamping notch 31 along the upper surface of the winding board 3. Through the fixation of the two ends of the low-temperature cable 1, the stability of the connection with the sensor 9 and the transmitter 8 is ensured, thereby guaranteeing the normal operation of the vortex flowmeter under low-temperature conditions.

[0036] As further provided in an embodiment of the utility model, the first rectangular flange plate 4 is fixedly provided with a threaded seat 41 with a larger circumferential radius than that of the sleeve 2. The sleeve 2 is sleeved with a large nut 5, and the port on one side of the large nut 5 is provided with an extension 51 which is screw-connected with the inner thread of the threaded seat 41.

[0037] Specifically, one end of the low-temperature cable 1 is threaded out of the wire inlet slot 21 and inlaid into the C-shaped slot 23 and then threaded into the sleeve 2 through the wire outlet slot 22. Then the large nut 5 is driven to rotate by a wrench, so that the extension 51 is screw-assembled with the threaded seat 41, and the port of the C-shaped slot 23 is shielded, thereby fixing the low-temperature cable 1 inlaid in the C-shaped slot 23 in the C-shaped slot 23.

[0038] As further provided in another embodiment of the utility model, in combination with Figure 4 As shown in the figure, the first rectangular flange plate 4 is provided with an arc-shaped air bag block 6 which is located in the C-shaped slot 23 and is in extrusion cooperation with the screw-connected extension 51.

[0039] Further, the arc-shaped air bag block 6 has an arc-shaped surface 61 and an arched side surface 62 according to the structure, the arc-shaped surface 61 faces the C-shaped slot 23, and the arched side surface 62 faces the inner wall of the threaded seat 41.

[0040] More further, the length of the arc-shaped surface 61 is equal to the length of the C-shaped slot 23.

[0041] Specifically, after the extension 51 is screw-assembled with the threaded seat 41 in the embodiment, the arched side surface 62 is extruded, so that the arc-shaped surface 61 extrudes the low-temperature cable 1, thereby fixing the low-temperature cable 1 in the C-shaped slot 23.

[0042] As further provided in another embodiment of the utility model, in combination with Figure 5 As shown in the figure, the inner walls on the opposite sides of the wire clamping notch 31 close to the port are respectively fixedly provided with hemispherical convex points 311.

[0043] Specifically, the other end of the low-temperature cable 1 is clamped into the first clamping slot 31, and then passes out from the second clamping slot 31 along the upper surface of the winding plate 3, and is limited by the two semispherical convex points 311 close to the port, so as to avoid the low-temperature cable 1 from being separated from the two clamping slots 31.

[0044] It should be noted that the sleeve 2 and the connecting plate 7 are stainless steel or aluminum alloy.

[0045] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A vortex flowmeter cryogenic cable protection sleeve, characterized by, The utility model relates to a kind of low temperature cable fixing device, including: Sleeve (2), the port of first end is respectively opened with the line slot (21) of keeping predetermined interval, the line slot (22) and the C-shaped slot (23) of the line slot (21) and line slot (22) intercommunication; Adjacent side is respectively opened with the wire clamping notch (31) of winding plate (3), it is fixed on the inner wall of sleeve (2) close to second end.

2. A vortex flowmeter cryogenic cable protection sleeve according to claim 1, wherein, The port of first end of sleeve (2) is fixedly installed with first rectangular flange plate (4), and the threaded seat (41) with greater circumferential radius than the circumferential radius of sleeve (2) is fixedly arranged on the first rectangular flange plate (4); Large nut (5) is sleeved on sleeve (2), and the port on one side of large nut (5) is provided with extension (51), and the external thread of extension (51) is threadedly connected with the internal thread of threaded seat (41).

3. A vortex flowmeter cryogenic cable protection sleeve according to claim 2, wherein, Arc-shaped air bag block (6) is arranged on the first rectangular flange plate (4), and the arc-shaped air bag block (6) is located in the C-shaped slot (23) and is in extrusion cooperation with the extension (51) threadedly connected.

4. A vortex flowmeter cryogenic cable protection sleeve according to claim 3, wherein, The arc-shaped air bag block (6) has an arc surface (61) and an arched side (62) according to the structure, the arc surface (61) faces the C-shaped slot (23), and the arched side (62) faces the inner wall of the threaded seat (41).

5. A low temperature cable protection sleeve for a vortex flow meter according to claim 4, wherein, The length of the arc surface (61) is equal to the length of the C-shaped slot (23).

6. A vortex flowmeter cryogenic cable protection sleeve according to claim 1, wherein, Second rectangular flange plate (10) is fixedly installed on the port cross section of the second end of sleeve (2); It further includes connecting plate (7) and base (11), the connecting plate (7) is arranged between second rectangular flange plate (10) and the base (11), and the second rectangular flange plate (10) and the base (11) are assembled by bolt; The transmitter (8) is fixedly installed on the base (11), and the transmitter (8) is electrically connected with the low temperature cable (1) passing through the sleeve (2).

7. A vortex flowmeter cryogenic cable protection sleeve according to claim 6, wherein, The connecting plate (7) is a stainless steel piece or an aluminum alloy piece.

8. A vortex flowmeter cryogenic cable protection sleeve according to claim 1, wherein, The sleeve (2) is a stainless steel piece or an aluminum alloy piece.

9. A vortex flowmeter cryogenic cable protection sleeve according to claim 1, wherein, The hemispherical convex point (311) is fixedly arranged on the inner wall of the opposite side of the port.

10. A vortex flowmeter cryogenic cable protection sleeve according to claim 1, wherein, It further includes sensor (9) connected in series on pipeline (12), and the first rectangular flange plate (4) on the sleeve (2) is fixed on the mounting port of the sensor (9) by bolt, and the low temperature cable (1) connected on the sensor (9) is inserted.

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