CN214618449U

CN214618449U - Flexible coupling device for pipeline

Info

Publication number: CN214618449U
Application number: CN202120575994.5U
Authority: CN
Inventors: 陈爱民; 吴学荣; 马红
Original assignee: Jiangsu New Honda Group
Current assignee: Jiangsu New Honda Group; Jiangsu New Hongda Group Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-11-05
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a flexible coupling device for pipelines, which comprises a fixed pipeline, a floating pipeline and a flexible coupler; the flexible connector comprises two connecting flange covers, a connecting pipe and a pressure-resistant hose; the connecting pipe is fixedly arranged on the connecting flange cover; the number of the connecting pipes on the two connecting flange covers is the same; the pressure-resistant hose is respectively connected with the connecting pipes on the two connecting flange covers; the two connecting flange covers are respectively and fixedly connected with the fixed pipeline and the floating pipeline. The utility model adopts a plurality of small hoses to replace the original single rubber tube or bellows expansion joint with large diameter, thereby reducing the supporting function to the weight of the horizontal filter press to the maximum extent and improving the detection sensitivity and precision of the weighing sensor while ensuring that the total diameter of the small hoses is close to the diameter of the upstream and downstream pipelines; and the device is not a waist drum structure of the traditional compensator, and is not easy to form blockage to influence the pipeline flow and the sensitivity of a weighing system.

Description

Flexible coupling device for pipeline

Technical Field

The utility model belongs to the technical field of the pipeline hookup, concretely relates to flexible coupling device of pipeline.

Background

With the increasing level of intelligence, many devices such as horizontal filter presses and the like are provided with intelligent weighing systems for detecting parameters such as self weight of the devices and weight of filter cakes on line. Four feet of the horizontal filter press are respectively arranged above the weighing sensors, the filter press can creep up and down to a certain extent under the action of different weights, and the weighing sensors convert weight data into 4-20 mA current signals to be sent to the display terminal. After a filter cake is formed in the filtering chamber of the filter press, the weight of the filter cake can be calculated by subtracting the self weight of the equipment from the read real-time weight.

For most intelligent filter presses, the periphery of the filter press is necessarily externally hung with a part of a feeding pipeline, a water outlet pipeline, an air drying pipeline and the like, and the filter press is mainly used for loosening and drying media such as high-pressure slurry, washing water, compressed air and the like. The right side design of horizontal pressure filter has a plurality of connecting tube, and bottom pipeline relatively fixed when the piping, this pipeline can have certain supporting role to horizontal pressure filter, leads to weighing the reading inaccurate. The traditional method is to add 1 rubber or corrugated pipe expansion joint close to the diameter of the pipeline in the middle of the pipeline.

However, bellows expansion joints are mostly made of metal, which is relatively rigid; the inside polyester cloth, steel wire etc. that have adopted of withstand voltage rubber expansion joint strengthens, and the texture is also relatively harder, and is comparatively limited to the upper and lower wriggling compensation ability of pressure filter, when filter cake weight takes place slight change, leads to the change of weighing sensor response weight, causes weighing system failure or precision not high easily.

Moreover, most of the rubber expansion joints are of a waist drum-shaped structure, and easy-scaling slurry is easy to form scaling substances at the concave parts, so that the elastic deformation of the rubber expansion joints is hindered to a certain extent. The supporting force of the rubber expansion joint with hardened texture on the pipeline can be multiplied and sometimes even converted into rigid connection, so that the reading of a weighing system instrument fails; and the blocking object reduces the internal flow passage of the pipeline, thereby reducing the medium flow in the pipeline and reducing the performance of the filter press.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is to provide a flexible pipeline connection device, which can realize the function of a pipeline compensator, and the flexible pipe can be freely contracted, so as to reduce the supporting effect on the weight of the horizontal filter press to the maximum extent, so as to avoid interfering with the detection result; and the structure can not cause blockage, thereby occupying the flow channel of the pipeline and influencing the performance of the machine.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a flexible coupling device for pipelines comprises a fixed pipeline, a floating pipeline and a flexible coupler; the flexible connector comprises two connecting flange covers, a connecting pipe and a pressure-resistant hose; the connecting pipe is fixedly arranged on the connecting flange cover; the number of the connecting pipes on the two connecting flange covers is the same; the pressure-resistant hose is respectively connected with the connecting pipes on the two connecting flange covers; the two connecting flange covers are respectively and fixedly connected with the fixed pipeline and the floating pipeline.

Preferably, the flexible coupling further comprises a coupling standard; the connecting flange cover is of an upper-layer structure and a lower-layer structure, one layer is fixedly connected with the fixed pipeline or the floating pipeline, and the other layer is detachably connected with the pressure-resistant hose through the connecting pipe; and the upper layer and the lower layer of the flange cover are fixedly connected through the connecting standard parts.

Preferably, the adapter is welded to the coupling flange cover.

Preferably, the connection mode of the adapter tube and the pressure-resistance hose is a clamping type, a threaded type or a mode using a quick coupling.

Here, different hose lengths can be selected, and the bending radian of the hose can be adjusted, so that the hose can be freely contracted to the maximum extent.

Preferably, the sum of the sectional areas of the pressure-resistance hoses is not less than 60% of the area of the fixed line or the floating line.

The size and number of the drift diameters of the pressure-resistant hoses depend on the drift diameters of the floating pipelines and the fixed pipelines, and the overflowing flux of the pipeline can be ensured for the sectional area requirement of the pressure-resistant hoses.

Preferably, the positions of the connecting pipes on the connecting flange covers correspond to one another, and the pressure-resistant hoses are connected in a straight-through manner.

Preferably, the positions of the connecting pipes on the connecting flange covers correspond to one another, the pressure-resistant hoses are connected in a staggered mode, and the pressure-resistant hoses are spiral.

Here, adopt the alternating expression hookup, the hose is the heliciform, is favorable to the free shrink of hose to be favorable to the pipeline that floats to creep from top to bottom along with the pressure filter together, then weighing sensor reading is more accurate.

Preferably, the pressure-resistant hose is a pressure-resistant elastic hose, a steel wire braided hose lined with a rubber hose or a metal corrugated hose, and the inner wall of the hose is smooth.

Preferably, the adapter is arranged transversely on the coupling flange cover, and the adapter nozzle is arranged laterally and connected with the pressure-resistant hose.

The utility model discloses beneficial effect as follows: 1) the utility model adopts a plurality of small hoses to replace the original single rubber tube or bellows expansion joint with large diameter, thereby reducing the supporting function to the weight of the horizontal filter press to the maximum extent and improving the detection sensitivity and precision of the weighing sensor while ensuring that the total diameter of the small hoses is close to the diameter of the upstream and downstream pipelines;

2) the utility model discloses the waist drum structure that the device is not traditional compensator is difficult for forming and blocks up influence pipeline circulation and weighing system sensitivity.

Drawings

Fig. 1 is a schematic view of an application structure of a flexible coupling device for pipelines according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a flexible coupling device for pipelines according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lateral opening of a flexible coupling device for pipelines according to an embodiment of the present invention;

wherein, 1 is a weighing system, 2 is a filter press, 3 is a floating pipeline, 4 is a flexible coupling, 4-1 is a coupling flange cover, 4-2 is a connecting pipe, 4-3 is a pressure-resistant hose, 4-4 is a coupling flange cover, 4-5 is a connecting pipe, 4-6 is a pressure-resistant hose, 5 is a coupling standard component, and 6 is a fixed pipeline.

Detailed Description

In order to understand the features and technical contents of the present invention in more detail, the following description is given in conjunction with the accompanying drawings, which are only used for reference and not for limiting the present invention.

Preferably, the adapter is welded to the coupling flange cover.

Here, the flexible pipes with different lengths can be selected, and the bending radian of the flexible pipes can be adjusted to enable the flexible pipes to be freely contracted to the maximum extent.

Fig. 1 is a schematic view of an application structure of a flexible coupling device for pipelines according to an embodiment of the present invention; a pipeline flexible connecting device is applied to a horizontal filter press for intelligent weighing, as shown in the figure, four feet of the horizontal filter press 2 are respectively arranged on a weighing sensor 1, and a flexible connector 4 is communicated with a fixed pipeline 6 and a floating pipeline 3 of the filter press.

The pressure-resistant hose 4-3 of the flexible connector 4 is spirally arranged, can freely contract and hardly has a supporting effect on the filter press, so that the floating pipeline 3 can creep up and down along with the filter press 2, and the reading of the weighing sensor 1 is more sensitive and accurate.

Fig. 2 is a schematic structural diagram of a flexible coupling device for pipelines according to an embodiment of the present invention; as shown in fig. 2, in the present embodiment, the flexible coupling device for pipelines includes a fixed pipeline 6, a floating pipeline 3, and a flexible coupling; the flexible connector comprises a connecting flange cover 4-1, a connecting pipe 4-2 and a pressure-resistant hose 4-3; two connecting pipes 4-2 are fixedly arranged on the connecting flange cover 4-1; the pressure-resistant hose 4-3 is connected with the connecting pipe 4-2 on the two connecting flange covers 4-1 in a staggered manner; the two connecting flange covers 4-1 are respectively fixedly connected with the fixed pipeline 6 and the floating pipeline 3.

Here, the nipple 4-2 may be welded and fixed to the coupling flange cover 4-1.

Here, the connecting pipe can be provided in plurality, the length and the staggered angle of the pressure-resistant hose can be changed according to the drift diameter of the upstream and downstream pipelines, and the free shrinkage capacity of the hose is met to the maximum extent under the condition of ensuring the flow capacity.

Preferably, the coupling means of the nipple 4-2 and the pressure-resistance hose 4-3 is a clip type, a screw type or a type using a quick coupling.

Preferably, the flexible coupling device for pipelines further comprises a coupling standard 5; the connecting flange cover 4-1 is of an upper-layer structure and a lower-layer structure and is fixedly connected through a connecting standard part 5.

Here, the coupling standard 5 is a bolt.

Preferably, the sum of sectional areas of the pressure-resistance hoses 4-3 is not less than 60% of the area of the fixed line 6 or the floating line 3.

Here, at least 60% of the total cross-sectional area of the hose is ensured, in order to ensure a substantial pipe throughput, which does not affect the normal operation of the machine.

Preferably, the positions of the connecting pipes 4-2 on the connecting flange cover 4-1 are in one-to-one correspondence, the pressure-resistant hoses 4-3 are connected in a staggered manner, and the pressure-resistant hoses 4-3 are in a spiral shape.

Here, compared with a pipeline using a general compensator, a pipeline is not easily clogged by using a hose having a smooth inner wall.

Fig. 3 is a schematic structural view of a lateral opening of a flexible coupling device for pipelines according to an embodiment of the present invention; as shown in fig. 3, in the present embodiment, the flexible coupling includes a coupling flange cover 4-4, a nipple 4-5, a pressure-resistance hose 4-6; two connecting pipes 4-5 are arranged laterally on the connecting flange cover 4-4; the pressure-resistant hoses 4-6 are connected with the connecting pipes 4-5 on the two connecting flange covers 4-4 in a staggered manner.

The specific type of the above-mentioned devices is not limited and detailed, and the deep connection mode of the above-mentioned devices is not detailed, and can be understood by those skilled in the art as the common general knowledge.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The flexible coupling device for the pipeline is characterized by comprising a fixed pipeline, a floating pipeline and a flexible coupler; the flexible connector comprises two connecting flange covers, a connecting pipe and a pressure-resistant hose; the connecting pipe is fixedly arranged on the connecting flange cover; the number of the connecting pipes on the two connecting flange covers is the same; the pressure-resistant hose is respectively connected with the connecting pipes on the two connecting flange covers; the two connecting flange covers are respectively and fixedly connected with the fixed pipeline and the floating pipeline.

2. A pipe coupling according to claim 1, wherein said flexible coupling further comprises a coupling standard; the connecting flange cover is of an upper-layer structure and a lower-layer structure, one layer is fixedly connected with the fixed pipeline or the floating pipeline, and the other layer is detachably connected with the pressure-resistant hose through the connecting pipe; and the upper layer and the lower layer of the flange cover are fixedly connected through the connecting standard parts.

3. A pipe coupling according to claim 1, wherein said nipple is welded to the coupling flange.

4. The flexible coupling device for pipes according to claim 1, wherein the connection means of the adapter tube to the pressure-resistance hose is a clamp type, a screw type or a quick coupling type.

5. A flexible coupling device for pipes according to claim 1, wherein the sum of the sectional areas of said pressure-resistance hoses is not less than 60% of the area of the fixed pipe or the floating pipe.

6. A flexible coupling device for pipes according to claim 1 wherein the positions of the connecting pipes on the coupling flange covers correspond one to one and the pressure hoses are connected in a straight-through manner.

7. The flexible coupling device for pipes of claim 1 wherein the positions of the connecting pipes on the coupling flange covers correspond to each other one by one, and the pressure-resistant hoses are connected in a staggered manner, and the pressure-resistant hoses are in a spiral shape.

8. The flexible coupling device for pipes according to claim 1, wherein the pressure-resistant hose is a pressure-resistant elastic hose, a hose lining a rubber hose, a braided hose, or a corrugated hose, and the inner wall of the hose is smooth.

9. The flexible pipe coupling according to claim 1, wherein said adapter is transversely disposed on the coupling flange cover, and the adapter nozzle is laterally connected to the pressure-resistance hose.