Drainage device for long-distance heat supply pipeline

Abstract

The utility model discloses a long-distance heat supply pipeline drainage device which comprises a water storage pipe, a water inlet pipe is installed at one end of the water storage pipe through a flange connecting assembly, a filtering assembly is installed in the flange connecting assembly, and a plurality of drainage bent pipes are symmetrically communicated with the outer side wall of the water storage pipe. The lower ends of the multiple drainage bent pipes jointly communicate with a drainage pipe. A plug is installed on the inner top wall of the water storage pipe through a plurality of reset connecting assemblies, and each plug makes contact with the inner wall of the drainage bent pipe corresponding to the plug in position. The device is ingenious in structure and reasonable in design, water flow accumulation is avoided, the water outlet flow speed of the device is adjusted, potential safety hazards such as pipeline breakage and equipment damage possibly caused by too high flow speed are avoided, impact and abrasion of fluid to equipment can be relieved through the proper flow speed, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline drainage, in particular to a drainage device for a long-distance heating pipeline. Background Art

[0002] The heating pipeline is also called the heating network. It starts from the boiler room, direct-fired machine room, heating center, etc., and leads from the heat source to the thermal entrance of the building. Multiple heating pipelines form a network. The design pressure of the hot water medium for heating is less than or equal to 2.5MPa, and the design temperature is less than or equal to 200℃; the design pressure of the steam medium for heating is less than or equal to 1.6MPa, and the design temperature is less than or equal to 350℃. The following thermal network design, when the heating pipeline has problems and needs to be repaired, it must first be repaired by draining the water. The water outlet flow rate of the existing heating pipeline drainage device cannot be adjusted. Too fast water flow rate will cause pipeline rupture, equipment damage and other safety hazards. Utility Model Content

[0003] The utility model aims to solve the problems in the background technology and proposes a drainage device for a long-distance heating pipeline.

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

[0005] A long-distance heating pipeline drainage device comprises a water storage pipe, one end of which is provided with a water inlet pipe via a flange connection assembly, a filter assembly is installed in the flange connection assembly, a plurality of drainage elbows are symmetrically connected on the outer wall of the water storage pipe, and the lower ends of the plurality of drainage elbows are commonly connected with a drainage pipe;

[0006] A plug is installed on the inner top wall of the water storage pipe through a plurality of reset connection components, and each plug is in contact with the inner wall of the drainage elbow corresponding to the position.

[0007] Preferably, the flange connection assembly includes a first connecting flange and a second connecting flange, and the first connecting flange is installed at the water inlet end of the water storage pipe, and the second connecting flange is installed on the water inlet pipe, and the first connecting flange and the second connecting flange are connected by a plurality of locking screws.

[0008] Preferably, the filter assembly is located between the first connecting flange and the second connecting flange, and the filter assembly comprises an annular frame, in which a filter screen is installed;

[0009] The end surface of the first connecting flange is provided with an annular groove 1, the end surface of the second connecting flange is provided with an annular groove 2, and the annular frame is located in the annular groove 1 and the annular groove 2.

[0010] Preferably, the end surface of the second connecting flange is symmetrically provided with a plurality of placement grooves, and each placement groove is connected to the second annular groove, and the end surface of the first connecting flange is symmetrically provided with a plurality of clamping grooves;

[0011] A plurality of connection seats are symmetrically arranged on the outer side wall of the annular frame, and each connection seat is located in a placement groove at a corresponding position. A card block is vertically installed on each connection seat, and each card block is clamped in a card slot at a corresponding position.

[0012] Preferably, the reset connection assembly includes a hollow cylinder, and the hollow cylinder is vertically fixed on the inner wall of the water storage pipe, a reset spring is installed on the inner top wall of the hollow cylinder, the lower end of the reset spring is fixedly connected to a movable rod, and the plug is fixedly connected to the lower end of the movable rod.

[0013] Preferably, a third connecting flange is installed at the water outlet end of the water storage pipe, and a fourth connecting flange is installed at the lower end of the drainage pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. If the outflow velocity of water is greater than or equal to the inflow velocity of water, the water will be discharged through the outlet end of the water storage pipe. If the outflow velocity of water is less than the inflow velocity of water, the water will accumulate in the water storage pipe and the water volume inside the water storage pipe will be adjusted through the reset connection component and the drainage elbow to avoid water accumulation and control the outflow velocity of the device to avoid safety hazards such as pipeline rupture and equipment damage caused by excessive flow rate. The appropriate flow rate can reduce the impact and wear of the fluid on the equipment and extend the service life of the equipment.

[0016] 2. The card block is inserted into the corresponding card slot. At this time, the connecting seat is located in the corresponding placement slot, and the filter assembly is located in the annular groove 1 and the annular groove 2. Then, the first connecting flange and the second connecting flange are connected by locking screws to install or replace the filter assembly. The water flow is filtered before entering the water storage pipe to remove impurities and suspended matter in the water flow. The arrangement of the card slot, the card block, the placement slot and the connecting seat can limit the position of the filter assembly to prevent the filter assembly from rotating under the impact of the water flow.

[0017] To sum up, the utility model has an ingenious structure and a reasonable design. It can avoid water accumulation, adjust the water outlet flow rate of the device, and avoid safety hazards such as pipe rupture and equipment damage caused by excessive flow rate. The appropriate flow rate can reduce the impact and wear of the fluid on the equipment and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a visual diagram of a long-distance heating pipeline drainage device proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a drainage device for a long-distance heating pipeline proposed by the utility model;

[0020] Figure 3 This is an enlarged view of a reset connection assembly in a long-distance heating pipeline drainage device proposed by the utility model;

[0021] Figure 4 This is an enlarged view of a filter assembly in a long-distance heating pipeline drainage device proposed by the utility model;

[0022] Figure 5 This is an enlarged view of the first connecting flange in a long-distance heating pipeline drainage device proposed by the utility model;

[0023] Figure 6 This is an enlarged view of the second connecting flange in a long-distance heating pipeline drainage device proposed by the utility model.

[0024] In the figure: 1 water storage pipe, 2 water inlet pipe, 3 second connecting flange, 4 first connecting flange, 5 third connecting flange, 6 drain elbow, 7 drain pipe, 8 locking screw, 9 filter assembly, 10 plug, 11 movable rod, 12 hollow cylinder, 13 return spring;

[0025] 3 second connecting flange, 301 placement groove, 302 annular groove 2;

[0026] 4 first connecting flange, 401 slot, 402 annular groove 1;

[0027] 9 filter assembly, 901 annular frame, 902 filter screen, 903 connecting seat, 904 card block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-6 A long-distance heating pipeline drainage device comprises a water storage pipe 1, a third connecting flange 5 is installed at the water outlet end of the water storage pipe 1, a water inlet pipe 2 is installed at one end of the water storage pipe 1 through a flange connecting assembly, the flange connecting assembly comprises a first connecting flange 4 and a second connecting flange 3, and the first connecting flange 4 is installed at the water inlet end of the water storage pipe 1, and the second connecting flange 3 is installed on the water inlet pipe 2, and the first connecting flange 4 and the second connecting flange 3 are connected by a plurality of locking screws 8;

[0030] A filter assembly 9 is installed in the flange connection assembly, and the filter assembly 9 is located between the first connection flange 4 and the second connection flange 3. The filter assembly 9 includes an annular frame 901, and a filter screen 902 is installed in the annular frame 901. The filter screen 902 filters the water flow before it enters the water storage pipe 1 to remove impurities and suspended matter in the water flow; an annular groove 1 402 is opened on the end face of the first connection flange 4, and an annular groove 2 302 is opened on the end face of the second connection flange 3, and the annular frame 901 is located in the annular groove 1 402 and the annular groove 2 302; a plurality of placement grooves 30 are symmetrically opened on the end face of the second connection flange 3 1, and each placement groove 301 is connected to the annular groove 2 302, a plurality of slots 401 are symmetrically provided on the end surface of the first connecting flange 4, a plurality of connecting seats 903 are symmetrically provided on the outer wall of the annular frame 901, and each connecting seat 903 is located in the placement groove 301 with a position corresponding thereto, a clamping block 904 is vertically installed on each connecting seat 903, and each clamping block 904 is clamped in the corresponding slot 401, and the arrangement of the clamping slot 401, the clamping block 904, the placement groove 301 and the connecting seat 903 can limit the position of the filter assembly 9, and prevent the filter assembly 9 from rotating under the impact of the water flow;

[0031] A plurality of drain elbows 6 are symmetrically connected to the outer wall of the water storage pipe 1, and the lower ends of the plurality of drain elbows 6 are commonly connected to a drain pipe 7, and a fourth connecting flange is installed at the lower end of the drain pipe 7;

[0032] A plug 10 is installed on the inner top wall of the water storage pipe 1 through multiple reset connection components, and each plug 10 contacts the inner wall of the drainage elbow 6 at the corresponding position. The reset connection component includes a hollow cylinder 12, and the hollow cylinder 12 is vertically fixed on the inner wall of the water storage pipe 1. A reset spring 13 is installed on the inner top wall of the hollow cylinder 12. The lower end of the reset spring 13 is fixedly connected to a movable rod 11, and the plug 10 is fixedly connected to the lower end of the movable rod 11. The buoyancy of the plug and the movable rod in the water flow and the elastic force of the reset spring 12 are utilized to realize the movement of the plug 10 inside the water storage pipe 1 to avoid water accumulation, control the water outlet flow rate of the device, and avoid safety hazards such as pipeline rupture and equipment damage caused by excessive flow rate.

[0033] When the utility model is in use, both the heating steam and the water flow enter the inner wall of the water storage pipe 1 through the water inlet pipe 2, the heating steam is discharged through the water outlet end of the water storage pipe 1, and the water flows into the water storage pipe through the filter assembly 9 on the water inlet pipe 2. If the water inlet flow rate is less than or equal to the water outlet flow rate, the water flows through the water outlet end of the water storage pipe 1. If the water inlet flow rate is greater than the water outlet flow rate, the water flows are accumulated in the water storage pipe 1. When the water flow is accumulated enough in the water storage pipe 1, the water is blocked. The buoyancy of the plug 10 and the movable rod 11 pushes the return spring 12 upward to compress, the plug 10 is away from the upper end of the drain elbow 6, and the water accumulated in the water storage pipe 1 flows out of the water storage pipe 1 through the drain elbow 6 and the drain pipe 7. A certain amount of water accumulated in the water storage pipe 1 is discharged, and the elastic force of the return spring 10 to restore its original length is greater than the buoyancy of the plug 10 and the movable rod 11. The return spring 12 drives the plug 10 and the movable rod 11 to move downward, and the plug 10 is blocked at the upper end of the drain elbow 6;

[0034] It is worth mentioning that when replacing or installing the filter assembly 9, the block 904 is locked in the corresponding slot 401. At this time, the connecting seat 908 is located in the corresponding placement slot 301, and the filter assembly 9 is located in the annular groove 1 402 and the annular groove 2 302. Then, the first connecting flange 4 and the second connecting flange 3 are connected by the locking screw 8.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drainage device for a long-distance heating pipeline, comprising a water storage pipe (1), characterized in that: One end of the water storage pipe (1) is equipped with a water inlet pipe (2) via a flange connection assembly, a filter assembly (9) is installed in the flange connection assembly, a plurality of drainage elbows (6) are symmetrically connected to the outer wall of the water storage pipe (1), and the lower ends of the plurality of drainage elbows (6) are commonly connected to a drainage pipe (7); A plug (10) is installed on the inner top wall of the water storage pipe (1) via a plurality of reset connection components, and each plug (10) is in contact with the inner wall of the drainage elbow (6) at a corresponding position.

2. A long-distance heating pipeline drainage device according to claim 1, characterized in that: The flange connection assembly comprises a first connection flange (4) and a second connection flange (3), wherein the first connection flange (4) is installed at the water inlet end of the water storage pipe (1), and the second connection flange (3) is installed on the water inlet pipe (2), and the first connection flange (4) and the second connection flange (3) are connected by a plurality of locking screws (8).

3. A long-distance heating pipeline drainage device according to claim 2, characterized in that: The filter assembly (9) is located between the first connecting flange (4) and the second connecting flange (3), and the filter assembly (9) comprises an annular frame (901), and a filter screen (902) is installed in the annular frame (901); The end surface of the first connecting flange (4) is provided with an annular groove 1 (402), the end surface of the second connecting flange (3) is provided with an annular groove 2 (302), and the annular frame (901) is located in the annular groove 1 (402) and the annular groove 2 (302).

4. A long-distance heating pipeline drainage device according to claim 3, characterized in that: The end surface of the second connecting flange (3) is symmetrically provided with a plurality of placement grooves (301), and each placement groove (301) is connected to the second annular groove (302); the end surface of the first connecting flange (4) is symmetrically provided with a plurality of clamping grooves (401); A plurality of connection seats (903) are symmetrically arranged on the outer side wall of the annular frame (901), and each connection seat (903) is located in a placement groove (301) at a corresponding position. A clamping block (904) is vertically mounted on each connection seat (903), and each clamping block (904) is clamped in a clamping groove (401) at a corresponding position.

5. A long-distance heating pipeline drainage device according to claim 1, characterized in that: The reset connection assembly comprises a hollow cylinder (12), and the hollow cylinder (12) is vertically fixed on the inner wall of the water storage pipe (1), a reset spring (13) is installed on the inner top wall of the hollow cylinder (12), the lower end of the reset spring (13) is fixedly connected to a movable rod (11), and the plug (10) is fixedly connected to the lower end of the movable rod (11).

6. A long-distance heating pipeline drainage device according to claim 1, characterized in that: A third connecting flange (5) is installed at the water outlet end of the water storage pipe (1), and a fourth connecting flange is installed at the lower end of the drainage pipe (7).

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