Heat supply system of steam pipeline

Abstract

The utility model relates to the technical field of energy utilization, and discloses a heat supply system of a steam pipeline, which comprises a boiler, a main pipeline and a first pipeline arranged between the boiler and the main pipeline, a valve is arranged on the first pipeline, and a water inlet end of the boiler is connected with an energy storage vehicle through a second pipeline. And a closing mechanism with a buffering function is mounted on the second pipeline. The energy storage vehicle is further connected with the input end of the main pipeline through a third pipeline, and the third pipeline is further provided with a closing mechanism with the buffering function. According to the utility model, the closing mechanisms are respectively arranged on the second pipeline and the third pipeline, and when the valve core is closed, a small amount of water can flow into the buffer groove, so that a buffer effect can be achieved, the phenomenon that the first pipeline or the second pipeline is broken due to a water hammer effect is reduced, and the service lives of the first pipeline and the second pipeline are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of energy utilization technology, specifically a steam pipeline heating system. Background Technology

[0002] In recent years, influenced by national environmental protection and clean energy policies, many industrial enterprises have changed their heat production methods. Some enterprises have started to use electric boilers to produce steam. The biggest problem with electric boilers producing steam is the high cost of electricity, high industrial electricity prices, and high overall energy costs.

[0003] In order to save on electricity costs, energy storage vehicles are usually used to collect and reuse hot water after use by surrounding factories (smelters, waste incineration plants or power plants). The collected hot water is transported to the boiler and fed into the boiler, so that the boiler can directly heat the hot water with residual heat, reducing electricity consumption and lowering costs.

[0004] However, when the energy storage vehicle delivers water with residual heat into the boiler, it usually needs to use a delivery pipe to deliver the water into the boiler. If the delivery of water with residual heat into the boiler is stopped, the valve on the pipe needs to be closed. During the closure process, water hammer can easily occur, causing the pipe to rupture and resulting in unnecessary losses.

[0005] Therefore, we propose a steam pipeline heating system to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to solve the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a steam pipeline heating system, comprising a boiler, a main pipeline and a first pipeline installed between the boiler and the main pipeline, wherein a valve is installed on the first pipeline, and the water inlet of the boiler is connected to an energy storage vehicle through a second pipeline, wherein a closing mechanism with a buffer function is installed on the second pipeline.

[0008] Furthermore, the energy storage vehicle is also connected to the input end of the main pipeline via a third pipeline, and a closing mechanism with a buffer function is also installed on the third pipeline.

[0009] Furthermore: the closing mechanism includes a cylinder, a rotating rod rotatably mounted on the cylinder, and an extension pipe fixed to the water inlet end of the cylinder. The inner end of the rotating rod is fixedly connected to a valve core rotatably mounted inside the cylinder. The valve core has a water flow hole. The outer end of the rotating rod is fixed with a rotating handwheel located outside the cylinder. A "ring"-shaped buffer groove is formed between the extension pipe and the cylinder.

[0010] Furthermore: a compression spring is fixed to the inner end wall of the buffer groove, and one end of the compression spring is connected to an annular plate slidably installed in the buffer groove; one end of the buffer groove is fixed with a first annular protrusion for blocking the annular plate.

[0011] Furthermore, a tee is provided at the connection between the first pipeline and the main pipeline.

[0012] Furthermore, connection components are installed at the connection points between the energy storage vehicle and the second pipeline, and at the connection points between the energy storage vehicle and the third pipeline.

[0013] Furthermore, the connecting assembly includes a fixed connector and a movable connector, wherein the movable connector is fitted with a mounting sleeve that is threadedly connected to the fixed connector.

[0014] Furthermore: one end of the movable connector is fixed with a second annular protrusion, and the second annular protrusion is located inside the mounting sleeve, and a rubber sealing gasket is provided on one side of the second annular protrusion.

[0015] Furthermore, the outer surface of the movable connector is also fixed with a third annular protrusion for blocking the mounting sleeve, and a certain gap is left between the third annular protrusion and the second annular protrusion.

[0016] Furthermore, an "L"-shaped elbow is provided at the connection between the third pipeline and the main pipeline.

[0017] The beneficial effects of this utility model are:

[0018] This utility model is equipped with a closing mechanism on the second and third pipelines respectively. When the valve core is closed, a small amount of water can flow into the interior of the buffer tank, thereby playing a buffering role and reducing the phenomenon of the first or second pipeline breaking due to water hammer effect, thus extending the service life of the first and second pipelines.

[0019] The second and third pipelines of this utility model are both connected to the energy storage vehicle. The energy storage vehicle can transport water with residual heat to the inside of the boiler through the second pipeline, so that the boiler can heat the water with residual heat into steam and then transport it to the inside of the main pipeline for users to use. The energy storage vehicle can also transport hot water directly to the inside of the main pipeline for use through the third pipeline, so as to provide multiple options according to the user's needs and improve the usage effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the closing mechanism in this utility model;

[0022] Figure 3 This is a partially enlarged structural diagram of point A in this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting component in this utility model.

[0024] The names corresponding to each mark in the diagram:

[0025] 1. Boiler; 2. Main pipeline; 3. First pipeline; 4. Valve; 5. Second pipeline; 6. Energy storage vehicle; 7. Closing mechanism; 71. Cylinder; 72. Rotating rod; 73. Extension pipe; 74. Valve core; 75. Water outlet; 76. Rotating handwheel; 77. Buffer groove; 78. Compression spring; 79. Annular plate; 710. First annular protrusion; 8. Third pipeline; 9. T-joint; 10. Connecting assembly; 101. Fixed connector; 102. Movable connector; 103. Mounting sleeve; 104. Second annular protrusion; 105. Rubber sealing gasket; 106. Third annular protrusion; 11. Elbow. Detailed Implementation

[0026] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figure 1 The diagram shows a steam pipeline heating system, comprising a boiler 1, a main pipeline 2, and an energy storage vehicle 6. A second pipeline 5 is provided between the boiler 1 and the energy storage vehicle 6. It should be noted that one end of the second pipeline 5 is detachably connected to the energy storage vehicle 6. Through the energy storage vehicle 6, hot water with residual heat from surrounding factories (smelters, waste incineration plants, or power plants) can be transported to the side of the boiler 2 and then conveyed into the boiler 1 via the second pipeline 5, allowing the boiler 1 to directly heat the water with residual heat. This achieves water resource recycling and reduces water waste; it also shortens the heating time of the boiler 1, reducing electricity consumption and improving energy efficiency and environmental protection. The output end of the boiler 1 is connected to a tee joint 9 installed on the main pipeline 2 via a first pipeline 3. After the boiler 1 heats the water inside into steam, it is transported to the main pipeline 2 via the first pipeline 3, and the main pipeline 2 can then deliver the steam to designated locations for user use.

[0029] like Figure 1As shown: The second pipeline 5 is equipped with a closing mechanism 7. If the second pipeline 5 is suddenly closed, the closing mechanism 7 can buffer the water flow, avoid water hammer effect, and reduce the occurrence of pipeline 5 rupture or the second pipeline 5 falling off the energy storage vehicle 6.

[0030] like Figure 2 As shown: Specifically, the closing mechanism 7 includes a cylinder 71 installed on the second pipeline 5, and a rotating rod 72 is rotatably installed on the cylinder 71. One end of the rotating rod 72 is fixedly connected to a valve core 74 rotatably installed inside the cylinder 71. The valve core 74 has a water flow hole 75. When both ends of the water flow hole 75 are in contact with the inner wall of the cylinder 71, it plays a closing role. When both ends of the water flow hole 75 are not in contact with the inner wall of the cylinder 71, the water with residual heat in the second pipeline 5 is transported to the interior of the boiler 1 through the water flow hole 75. The other end of the rotating rod 72 is fixed with a rotating handwheel 76 located outside the cylinder 71. The rotating handwheel 76 facilitates the rotation of the rotating rod 72, providing convenience for the staff.

[0031] like Figure 2 As shown: An extension pipe 73 is fixed to the water inlet end of the cylinder 71. It should be noted that one end of the extension pipe 73 extends into the interior of the cylinder 71, and a "ring"-shaped buffer groove 77 is formed between the extension pipe 73 and the cylinder 71. With the setting of the buffer groove 77, if the water in the water outlet 75 is suddenly closed, a small amount of water with residual heat in the second pipe 5 can flow into the interior of the buffer groove 77 to avoid water hammer effect and reduce the phenomenon of the second pipe 5 breaking or the second pipe 5 detaching from one end of the energy storage vehicle 6.

[0032] like Figure 3 As shown: A compression spring 78 is fixed to one end of the buffer groove 77, and one end of the compression spring 78 is connected to an annular plate 79 that is slidably installed in the buffer groove 77. Through the cooperation of the compression spring 78 and the annular plate 79, the buffer groove 77 is sealed. When the valve core 74 is in the open state, it prevents water with residual heat from flowing into the interior of the buffer groove 77. A first annular protrusion 710 is also fixed to one side of the buffer groove 77. The first annular protrusion 710 blocks the annular plate 79 and prevents the annular plate 79 from falling out of the interior of the buffer groove 77.

[0033] like Figure 1 As shown: A connecting component 10 is provided at the connection between the second pipeline 5 and the energy storage vehicle 6. The second pipeline 5 can be installed and disassembled through the connecting component 10.

[0034] like Figure 4As shown: Specifically, the connecting assembly 10 includes a fixed connector 101 fixed on the energy storage vehicle 6 and a movable connector 102 fixed at one end of the second pipeline 5. An installation sleeve 103 is slidably installed on the movable connector 102, and the installation sleeve 103 can be threaded onto the fixed connector 101, thereby fastening the fixed connector 101 and enabling one end of the second pipeline 5 to be installed on the energy storage vehicle 6.

[0035] like Figure 4 As shown: A second annular protrusion 104 is fixed on the movable connector 102. The second annular protrusion 104 serves to limit the installation sleeve 103 and prevent the installation sleeve 103 from falling off the movable connector 102. A "ring"-shaped rubber sealing gasket 105 is provided on one side of the second annular protrusion 104. If one end of the fixed connector 101 is threaded into the inside of the installation sleeve 103, one end of the fixed connector 101 can abut against the rubber sealing gasket 105 to achieve a sealing effect and prevent leakage when the water with residual heat in the energy storage vehicle 6 flows into the second pipeline 5.

[0036] When the energy storage vehicle 6 transports water with residual heat to the boiler 1, it first connects one end of the second pipeline 5 to the water tank (not shown in the figure) of the energy storage vehicle 6. The water with residual heat in the energy storage vehicle 6 can be transported to the boiler 1 through the energy storage vehicle 6. The boiler 1 can heat the water with residual heat, which can reduce the heating time, reduce power consumption, and improve energy conservation and environmental protection. After the water is heated into steam, it can enter the interior of the main pipeline 2 through the first pipeline 3. The main pipeline 2 can then transport the steam to the designated location for user use.

[0037] If the supply of water with residual heat to the boiler 1 is stopped, the handwheel 76 is turned, which drives the valve core 74 to rotate via the rotating rod 72. This causes the two ends of the water outlet 75 to fit against the inner wall of the cylinder 71, thus achieving a closing effect. As water continues to flow into the cylinder 71, the excessive pressure inside the cylinder 71 will squeeze the annular plate 79, which in turn squeezes the compression spring 78. A small amount of water with residual heat can flow into the buffer tank 77, thus providing a buffer area and preventing the second pipe 5 from rupturing or falling off from one end of the handwheel 6 due to the water hammer effect.

[0038] Example 2

[0039] Although the above implementation can deliver water with residual heat into the boiler 1, and the boiler can directly heat the water with residual heat, thereby reducing the electricity consumption of the boiler 1 and promoting energy conservation and environmental protection, the above function is relatively simple. It can only deliver steam into the steam pipe body 2 and cannot deliver hot water into the pipe 2. Therefore, in order to solve the above-mentioned technical problems, improvements are made based on the first embodiment.

[0040] The input end of the main pipeline 2 is connected to the third pipeline 8 via an "L"-shaped elbow 11. The input end of the third pipeline 8 is also connected to the energy storage vehicle 6 via a connecting component 10 (which has been described in Embodiment 1 and will not be described in detail here). The connecting component 10 allows the third pipeline 8 to be installed or removed from the energy storage vehicle 6. A closing mechanism 7 is also installed on the third pipeline 8 (which has been described in detail in Embodiment 1 and will not be described in detail here). The closing mechanism 7 can close the third pipeline 8 while preventing water hammer and reducing the possibility of the third pipeline 8 breaking.

[0041] A valve 4 is also installed on the first pipeline 3. The valve 4 is designed to close the first pipeline 3 and prevent the hot water in the main pipeline 2 from flowing back into the boiler 1.

[0042] If hot water is to be supplied to the inside of the main pipe 2, first connect one end of the third pipe 8 to the energy storage vehicle 6 (the closing mechanism 7 on the third pipe 8 is in the open state, and the closing mechanism 7 on the second pipe 5 is in the closed state). The water with residual heat in the energy storage vehicle 6 can be supplied to the inside of the main pipe 2 through the third pipe 8. The main pipe 2 can supply the water with residual heat to the designated location for users to use.

[0043] If hot water is to be supplied to the main pipe 2, the closing mechanism 7 on the third pipe 8 (the closing method of the closing mechanism 7 has been described in Embodiment 1 and will not be described in detail here) is closed, and the energy storage vehicle 6 stops supplying water with residual heat to the main pipe 2.

Claims

1. A steam pipeline heating system, comprising a boiler (1), a main pipeline (2) and a first pipeline (3) installed between the boiler (1) and the main pipeline (2), wherein a valve (4) is installed on the first pipeline (3), characterized in that; The water inlet of the boiler (1) is connected to the energy storage vehicle (6) through the second pipeline (5), and the second pipeline (5) is equipped with a closing mechanism (7) with a buffer function.

2. The heating system for a steam pipeline according to claim 1, characterized in that: The energy storage vehicle (6) is also connected to the input end of the main pipeline (2) through the third pipeline (8), and the third pipeline (8) is also equipped with a closing mechanism (7) with a buffer function.

3. A steam pipeline heating system according to claim 1 or 2, characterized in that: The closing mechanism (7) includes a cylinder (71), a rotating rod (72) rotatably mounted on the cylinder (71), and an extension pipe (73) fixed to the water inlet end of the cylinder (71). The inner end of the rotating rod (72) is fixedly connected to a valve core (74) rotatably mounted inside the cylinder (71). A water flow hole (75) is provided on the valve core (74). A rotating handwheel (76) located outside the cylinder (71) is fixed to the outer end of the rotating rod (72). A "ring"-shaped buffer groove (77) is formed between the extension pipe (73) and the cylinder (71).

4. A steam pipeline heating system according to claim 3, characterized in that: A compression spring (78) is fixed to the inner end wall of the buffer groove (77), and one end of the compression spring (78) is connected to an annular plate (79) that is slidably installed in the buffer groove (77). One end of the buffer groove (77) is fixed with a first annular protrusion (710) for blocking the annular plate (79).

5. A steam pipeline heating system according to claim 1, characterized in that: A tee (9) is provided at the connection between the first pipeline (3) and the main pipeline (2).

6. A steam pipeline heating system according to claim 1, characterized in that: Connection components (10) are installed at the connection points between the energy storage vehicle (6) and the second pipeline (5) and between the energy storage vehicle (6) and the third pipeline (8).

7. A steam pipeline heating system according to claim 6, characterized in that: The connecting assembly (10) includes a fixed connector (101) and a movable connector (102), and the movable connector (102) is fitted with a mounting sleeve (103) that is threadedly connected to the fixed connector (101).

8. A steam pipeline heating system according to claim 7, characterized in that: One end of the movable connector (102) is fixed with a second annular protrusion (104), and the second annular protrusion (104) is located inside the mounting sleeve (103). A rubber sealing gasket (105) is provided on one side of the second annular protrusion (104).

9. A steam pipeline heating system according to claim 7, characterized in that: The outer surface of the movable connector (102) is also fixed with a third annular protrusion (106) for blocking the mounting sleeve (103), and a certain gap is left between the third annular protrusion (106) and the second annular protrusion (104).

10. A steam pipeline heating system according to claim 1, characterized in that: An "L"-shaped elbow (11) is provided at the connection between the third pipeline (8) and the main pipeline (2).

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