Leakage-proof device of heat supply pipe network for heating

Abstract

The utility model relates to the technical field of heat supply pipe network leakage-proof devices for heat supply, and discloses a heat supply pipe network leakage-proof device for heat supply, which comprises a heat supply pipeline, a sealing mechanism is arranged in the heat supply pipeline, and the heat supply pipeline is divided into two sections which are distributed in bilateral symmetry; the sealing mechanism comprises a sleeve, the sleeve is arranged on the inner sides of the two sections of heat supply pipelines, sealing rings embedded in the inner sides of the two sections of heat supply pipelines are arranged on the left side and the right side of the sleeve, a connecting plate is arranged on the outer side of the sleeve, and the sealing mechanism is fixedly connected with the two sections of heat supply pipelines through the connecting plate. The leakage-proof device for the heat supply pipe network for heating has the advantages of being good in sealing effect and the like, and solves the problems that most of existing heat supply pipe networks adopt sealing rings to seal joints, the sealing capability mostly depends on extrusion force between two sections of connecting pipelines for connection, and the sealing performance is poor. And after the bolt is loosened due to the increase of the service time, the sealing effect of the bolt is reduced, and the leakage-proof capability is also weakened.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-leakage devices for heating pipe networks, specifically an anti-leakage device for heating pipe networks. Background Technology

[0002] Urban centralized heating networks are pipeline systems that transport and distribute heating media from urban centralized heating sources to heat users. The network consists of transmission trunk lines, distribution trunk lines, and branch lines. Transmission trunk lines originate from the heat source and generally do not connect to branch lines; distribution trunk lines originate from the transmission trunk lines or are directly connected to the heat source, supplying heat to users through distribution branch lines. The pipe diameter of the heating network is determined based on hydraulic calculations. In large networks, sometimes heating stations are installed on the transmission trunk lines or at the junctions of transmission and distribution trunk lines to ensure network pressure conditions and to centrally regulate and monitor heating medium parameters.

[0003] Most existing heating pipe networks use sealing rings to seal the joints. Their sealing ability mostly relies on the squeezing force between the two connecting pipe sections. As the bolts loosen due to the increase in service time, the sealing effect also decreases, and the leak prevention ability weakens. Therefore, a leak prevention device for heating pipe networks is proposed to solve the above-mentioned problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a leak-proof device for heating pipe networks, which has advantages such as good sealing effect. It solves the problem that most existing heating pipe networks use sealing rings to seal the joints, and their sealing ability mostly relies on the squeezing force between the two connecting pipes. As the bolts loosen due to the increase in service time, the sealing effect also decreases, and the leak-proof ability weakens accordingly.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a heating pipe network anti-leakage device for heating, including a heating pipe, the heating pipe having a sealing mechanism inside, the heating pipe being set in two sections and symmetrically distributed from left to right;

[0008] The sealing mechanism includes a sleeve, which is disposed inside the two heating pipe sections. Sealing rings embedded in the inner sides of the two heating pipe sections are provided on both sides of the sleeve. A connecting plate is provided on the outer side of the sleeve. The sealing mechanism is fixedly connected to the two heating pipe sections through the connecting plate.

[0009] The beneficial effects of this utility model are: by setting a sealing mechanism inside the two sections of heating pipes, a sealing gasket between the two sections of heating pipes, and a sealing mechanism, the connection part of the heating pipes forms a three-section seal, which improves the sealing effect. At the same time, the sealing mechanism limits the gap between the two sections of heating pipes, avoiding the sealing failure caused by the increased gap after the hexagonal bolts loosen.

[0010] This leak-proof device for heating pipe networks has the advantage of good sealing performance.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the heating pipe is fixedly connected to a threaded fixing plate at its port, and the two sections of the heating pipe are fixedly connected by no less than six hexagonal bolts that are distributed in a ring at equal intervals.

[0013] The advantage of adopting the above-mentioned further solution is that the two threaded fixing plates facilitate the fixed connection between the two sections of heating pipe.

[0014] Furthermore, the inner sides of both heating pipe sections are provided with embedding grooves that are compatible with the sleeves, and the left and right ends of the sleeves extend to the inner sides of the two heating pipe sections respectively. The inner sides of the sleeves are provided with water flow holes that are equal to the inner diameter of the heating pipes.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the inner side of the sleeve is provided with a water flow hole with the same diameter as the inner diameter of the heating pipe, which can facilitate the maintenance of heating water flow of the same diameter and avoid changes in water flow velocity due to changes in inner diameter, thus affecting water flow resistance.

[0016] Furthermore, the outer sides of the two sections of the heating pipe are also fitted with a sealing mechanism, and the heating pipe is a cast steel pipe for heating.

[0017] The advantages of adopting the above-mentioned further solutions are that the production method of cast steel pipes is simple, and the cost of use and replacement is low.

[0018] Furthermore, the closing mechanism includes two fastening sleeves connected by hinges. Each of the two fastening sleeves has a threaded plate extending forward fixedly connected to its front side. Two fixing bolts, symmetrically distributed on the inner side of each threaded plate, are provided. Two compensating springs, each sleeved outside the two fixing bolts, are provided below the lower threaded plate. The two fixing bolts are used to fasten the two fastening sleeves. The two fastening sleeves fasten at the connection port of the two heating pipe sections. Each of the two fastening sleeves has a fastening groove on its inner side that matches the two threaded fixing plates.

[0019] The advantage of adopting the above-mentioned further solution is that the interlocking groove facilitates the control of the gap between the two heating pipe sections when the sealing mechanism is fixed, thus preventing the connection point from loosening.

[0020] Furthermore, sealing gaskets that fit against the sides of the two heating pipe ports are fixedly connected to both sides of the connecting plate. The connecting plate and the two sealing gaskets are provided with fixing holes that are compatible with multiple hexagon socket bolts. All of the fixing holes are used for the hexagon socket bolts to pass through.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the sealing gasket is a second-stage sealing measure, which avoids water leakage directly after the sealing ring fails. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a front view of the connection structure between the heating pipe and the sealing mechanism of this utility model;

[0024] Figure 3 This is a side view of the closed mechanism of this utility model;

[0025] Figure 4 This is an enlarged view of the structure at point A of this utility model.

[0026] In the diagram: 1. Heating pipe; 2. Sealing mechanism; 201. Sleeve; 202. Sealing ring; 203. Connecting plate; 3. Threaded fixing plate; 4. Socket head bolt; 5. Water flow hole; 6. Closing mechanism; 601. Snap-fit ​​sleeve; 602. Threaded plate; 603. Fixing bolt; 604. Compensating spring; 7. Sealing gasket; 8. Fixing hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the embodiments, by Figure 1-4 The present invention provides a leak-proof device for heating pipe network. The present invention includes a heating pipe 1, a sealing mechanism 2 is provided inside the heating pipe 1, and the heating pipe 1 is provided in two sections and is symmetrically distributed from left to right.

[0029] The sealing mechanism 2 includes a sleeve 201, which is disposed inside the two sections of heating pipe 1. Sealing rings 202 embedded inside the two sections of heating pipe 1 are provided on both the left and right sides of the sleeve 201. A connecting plate 203 is provided on the outside of the sleeve 201. The sealing mechanism 2 is fixedly connected to the two sections of heating pipe 1 through the connecting plate 203.

[0030] The heating pipe 1 is fixedly connected to the port with a threaded fixing plate 3, and the two sections of the heating pipe 1 are fixedly connected by no less than six internal hex bolts 4 that are distributed in a ring at equal intervals.

[0031] Two threaded fixing plates 3 facilitate the fixed connection of the two heating pipe sections 1 to each other;

[0032] Both heating pipe sections 1 have an inner groove adapted to the sleeve 201. The left and right ends of the sleeve 201 extend to the inner sides of the two heating pipe sections 1 respectively. The inner side of the sleeve 201 has a water flow hole 5 with the same inner diameter as the heating pipe 1.

[0033] The inner side of the sleeve 201 is provided with a water flow hole 5 with the same inner diameter as the heating pipe 1, which can facilitate the maintenance of heating water flow with the same diameter and avoid changes in water flow speed due to changes in inner diameter, thus affecting water flow resistance.

[0034] The outer sides of the two sections of heating pipe 1 are also fitted with a sealing mechanism 6. The heating pipe 1 is a cast steel pipe for heating.

[0035] Cast steel pipes are simple to produce and have low costs for use and replacement.

[0036] The closing mechanism 6 includes two fastening sleeves 601 connected by hinges. The front of each fastening sleeve 601 is fixedly connected to a threaded plate 602 extending towards the front. The inner side of each threaded plate 602 is provided with two fixing bolts 603 that are symmetrically distributed from left to right. The lower threaded plate 602 is provided with two compensating springs 604 that are respectively sleeved on the outside of the two fixing bolts 603. The two fixing bolts 603 are used to fasten the two fastening sleeves 601. The two fastening sleeves 601 are fastened to the connection port of the two heating pipes 1. The inner side of each fastening sleeve 601 is provided with a fastening groove that is adapted to the two threaded fixing plates 3.

[0037] The interlocking groove facilitates control of the gap between the two sections of heating pipe 1 when the sealing mechanism 6 is fixed, preventing the connection point from loosening;

[0038] Both sides of the connecting plate 203 are fixedly connected with sealing gaskets 7 that fit against the sides of the two heating pipes 1. The connecting plate 203 and the two sealing gaskets 7 are provided with fixing holes 8 that are compatible with multiple hexagon socket bolts 4. The multiple fixing holes 8 are used for the hexagon socket bolts 4 to pass through.

[0039] The sealing gasket 7 is a second-stage sealing measure to prevent water leakage directly after the sealing ring 202 fails.

[0040] Working principle:

[0041] Step 1: The sealing mechanism 2 provides the first seal on the inside of the connection between the two sections of heating pipe 1 through the sleeve 201 and the sealing ring 202, and provides a seal from the inside of the heating pipe 1 through the water pressure and the extrusion force provided by the internal hex bolt 4;

[0042] Step 2: By connecting the two sections of heating pipe 1 with hex bolts 4, the pressure is used to compress the sealing gasket 7, so that the pipe connection is in a different position from the sealing mechanism 2, providing a second seal.

[0043] Step 3: The lateral gap between the two heating pipe sections 1 is limited by the opening and closing closing mechanism 6, so that the sealing gasket 7 can still provide basic compressive force to the two heating pipe sections 1 after the internal hex bolt 4 is loosened, maintaining its sealing effect and forming a third seal. The sealing effect of the two heating pipe sections 1 is maintained through multiple sealing capabilities at different positions and in different ways.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak protection device for heating networks, comprising a heating pipe (1), characterized in that: The inside of the heating pipeline (1) is provided with a sealing mechanism (2), the heating pipeline (1) is provided with two sections, and is symmetrically distributed left and right; The sealing mechanism (2) comprises a sleeve (201), the sleeve (201) is arranged on the inner side of the two-section heating pipeline (1), the left and right sides of the sleeve (201) are provided with sealing rings (202) embedded in the inner side of the two-section heating pipeline (1), and the outer side of the sleeve (201) is provided with a connecting plate (203), and the sealing mechanism (2) is fixedly connected with the two-section heating pipeline (1) through the connecting plate (203).

2. The heat supply pipe network leak protection device for heating according to claim 1, characterized in that: The port of the heating pipeline (1) is fixedly connected with a threaded fixing plate (3), and the two-section heating pipeline (1) is fixedly connected through a plurality of internal hexagonal bolts (4) which are annularly and equidistantly distributed.

3. The heat supply pipe network leak protection device for heating according to claim 1, characterized in that: The inner side of the two-section heating pipeline (1) is provided with an embedded groove matched with the sleeve (201), the left and right ends of the sleeve (201) extend to the inner side of the two-section heating pipeline (1), and the inner side of the sleeve (201) is provided with a water flow hole (5) with the same diameter as the heating pipeline (1).

4. The heat supply pipe network leak protection device for heating according to claim 1, characterized in that: The outer side of the two-section heating pipeline (1) is further sleeved with a sealing mechanism (6), and the heating pipeline (1) is a heating cast steel pipe.

5. The leak protection device for heating pipe network according to claim 4, characterized in that: The sealing mechanism (6) comprises two buckle sleeves (601) connected through hinges, the front surface of the two buckle sleeves (601) is fixedly connected with a threaded plate (602) extending to the front surface, the inner side of the two threaded plates (602) is provided with two fixed bolts (603) which are symmetrically distributed left and right, the lower side of the lower threaded plate (602) is provided with two compensation springs (604) which are sleeved on the outer side of the two fixed bolts (603), respectively, the two fixed bolts (603) are used for fastening the two buckle sleeves (601), the two buckle sleeves (601) are buckled on the connecting ports of the two-section heating pipeline (1), and the inner sides of the two buckle sleeves (601) are provided with buckling grooves matched with the two threaded fixing plates (3).

6. The heat supply pipe network leak protection device for heating according to claim 1, characterized in that: The left and right sides of the connecting plate (203) are fixedly connected with sealing pads (7) abutting the port side surfaces of the two-section heating pipeline (1), and the inside of the connecting plate (203) and the two sealing pads (7) is provided with fixing holes (8) matched with the plurality of internal hexagonal bolts (4), and the plurality of fixing holes (8) are used for the internal hexagonal bolts (4) to pass through.

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