Rapid separation device for steam-water pipeline of heating network heater and heating network circulating water pump

Abstract

The utility model discloses a heat supply network heater and heat supply network circulating water pump steam-water pipeline rapid separation device and belongs to the technical field of heat supply network systems. The electric butterfly valve solves the problems that electric butterfly valves are adopted for inlet and outlet pipelines of the heat supply network heater and the heat supply network circulating water pump at present, leakproofness is poor after the electric butterfly valves are put into operation, and when the heat supply network heater breaks down, isolation and overhauling cannot be conducted quickly. A heater steam side A steam inlet gate valve is installed on one steam inlet pipeline at the steam inlet end of the heating network heater, a heater steam side B steam inlet gate valve is installed on the other steam inlet pipeline, a heater inlet gate valve is installed on one pipeline at the output end of the heating network heater, and a heater outlet gate valve is installed on the other pipeline at the output end of the heating network heater. The output end of the heat supply network circulating water pump is connected with a circulating water pump outlet gate valve, and the input end of the heat supply network circulating water pump is connected with a circulating water pump inlet gate valve. According to the rapid partition device, the gate valve is used for achieving rapid partition of the heat supply network heater and the heat supply network circulating water pump.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating network systems, in particular to a quick disconnecting device for steam-water pipelines of a heating network heater and a heating network circulating water pump. Background Art

[0002] A heat network unit usually refers to an independent heating equipment unit, which usually includes a heat source, a control system and supporting equipment. These units can be boilers, hot water boilers, ground source heat pumps, etc., which are used to generate heat energy to supply the needs of the entire heat network system. The heat network system transfers heat energy from the central heat source to each user end through the synergy of multiple components to meet the heating needs. This system is widely used in urban heating, industrial production and some large buildings.

[0003] Butterfly valves are installed on the steam-water pipelines of the heating network heater and the heating network circulating water pump of the heating network unit. The butterfly valve has a simple structure, small size, light weight, and is composed of only a few parts. It can be quickly closed by rotating 90°. The electric control valve has good adjustability, so most of the inlet and outlet pipelines of the heating network heater and the heating network circulating water pump generally use electric butterfly valves.

[0004] Butterfly valves have elastic seals and metal seals. Butterfly valves with metal seals generally have a longer lifespan than soft seal butterfly valves, but it is also difficult to achieve complete sealing, so butterfly valves also have fatal shortcomings. When heating in winter, if the heating network heater and the heating network circulating water pump fail, they cannot be quickly isolated and repaired, which will cause significant economic losses and social impacts. After all the valves of the steam and water pipelines of the heating network heater and the heating network circulating water pump are electric butterfly valves, the problem of poor tightness of the electric butterfly valves after they are put into operation becomes prominent, and when the heating network heater fails, it cannot be quickly isolated and repaired, which seriously affects winter heating.

[0005] Therefore, the present application proposes a quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the research and development of the utility model is to solve the problem that the inlet and outlet pipelines of the current heating network heater and the heating network circulating water pump all use electric butterfly valves, and the electric butterfly valves have poor tightness after being put into operation, and cannot be quickly isolated and repaired when the heating network heater fails. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to determine the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0007] The technical solution of this utility model:

[0008] A quick disconnecting device for steam-water pipelines of a heating network heater and a heating network circulating water pump comprises a No. 1 heating network steam supply mother pipe and a No. 2 heating network steam supply mother pipe, wherein the No. 1 heating network steam supply mother pipe and the No. 2 heating network steam supply mother pipe are respectively connected to a plurality of heating network heaters and the heating network circulating water pump, wherein the steam inlet end of each heating network heater is respectively connected to two steam inlet pipelines, wherein an A steam inlet valve and an A steam inlet gate valve on the steam side of the heater are installed on one steam inlet pipeline, and a B steam inlet valve and a B steam inlet gate valve on the steam side of the heater are installed on the other steam inlet pipeline, wherein the output end of the heating network heater is connected to two pipelines, wherein an electric butterfly valve on the water side inlet of the heater and an inlet gate valve of the heater are installed on one pipeline, and an electric butterfly valve on the water side outlet of the heater and an outlet gate valve of the heater are installed on the other pipeline, wherein the two pipelines are gathered into one pipeline and connected to the heating network circulating water pump, wherein the output end of the heating network circulating water pump is connected to an electric butterfly valve on the outlet of the circulating water pump and an outlet gate valve of the circulating water pump, and the input end of the heating network circulating water pump is connected to an electric butterfly valve on the inlet of the circulating water pump and an inlet gate valve of the circulating water pump.

[0009] Furthermore, the circulating water pump outlet gate valve is a DN600mm gate valve, the circulating water pump inlet gate valve is a DN500mm gate valve, and the inlet and outlet pressures of the circulating water pump outlet gate valve and the circulating water pump inlet gate valve are 2.5MPa.

[0010] Furthermore, the steam inlet gate valve on the steam side A of the heater and the steam inlet gate valve on the steam side B of the heater are DN500mm gate valves, and the gate valve pressure of the steam inlet gate valve on the steam side A of the heater and the steam inlet gate valve on the steam side B of the heater is 2.5MPa.

[0011] Furthermore, the heater inlet gate valve and the heater outlet gate valve are DN400mm gate valves, and the gate valve pressure of the heater inlet gate valve and the heater outlet gate valve is 2.5MPa.

[0012] The utility model has the following beneficial effects:

[0013] The utility model discloses a quick disconnecting device for steam-water pipelines of heating network heaters and heating network circulating water pumps. By arranging gate valves on the inlet and outlet pipelines of each heating network heater and the heating network circulating water pump, the heating network heater or the heating network circulating water pump can be quickly isolated and blocked for maintenance when a failure occurs. Compared with the traditional arrangement of electric butterfly valves on the pipelines, the controllability of the inlet and outlet pipelines of the heating network heater and the heating network circulating water pump is improved, and the emergency repair efficiency of the failure is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of a quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump.

[0015] In the figure: 1- steam supply main pipe of heating network of unit 1, 2- steam supply main pipe of heating network of unit 2, 3- heating network heater, 4- circulating water pump of heating network, 5- A steam inlet valve, 6- B steam inlet valve, 7- A steam inlet gate valve of steam side of heater, 8- B steam inlet gate valve of steam side of heater, 9- electric butterfly valve of water side inlet of heater, 10- electric butterfly valve of water side outlet of heater, 11- gate valve of heater inlet, 12- gate valve of heater outlet, 13- gate valve of circulating water pump outlet, 14- electric butterfly valve of circulating water pump outlet, 15- electric butterfly valve of circulating water pump inlet, 16- gate valve of circulating water pump inlet. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0017] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection (i.e., non-detachable connection) includes but is not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection, and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as threaded connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can always be found in the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and hinge connection is selected for detachable connection.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Embodiment 1, combination Figure 1The present embodiment is described. A quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump of the present embodiment comprises a No. 1 heating network steam supply mother pipe 1 and a No. 2 heating network steam supply mother pipe 2. The No. 1 heating network steam supply mother pipe 1 and the No. 2 heating network steam supply mother pipe 2 are respectively connected to a plurality of heating network heaters 3 and a heating network circulating water pump 4. The steam inlet end of each heating network heater 3 is respectively connected to two steam inlet pipelines. An A steam inlet valve 5 and a steam inlet gate valve 7 on the steam side of the heater are installed on one steam inlet pipeline. A B steam inlet valve 6 and a steam inlet gate valve 7 on the steam side of the heater are installed on the other steam inlet pipeline. Gate valve 8, the output end of the heating network heater 3 is connected to two pipelines, one pipeline is installed with a heater water side inlet electric butterfly valve 9 and a heater inlet gate valve 11, the other pipeline is installed with a heater water side outlet electric butterfly valve 10 and a heater outlet gate valve 12, the two pipelines are gathered into one pipeline and connected to the heating network circulating water pump 4, the output end of the heating network circulating water pump 4 is connected with a circulating water pump outlet electric butterfly valve 14 and a circulating water pump outlet gate valve, the input end of the heating network circulating water pump 4 is connected with a circulating water pump inlet electric butterfly valve 15 and a circulating water pump inlet gate valve 16;

[0020] Four heating pipelines are respectively arranged on the heating network steam supply main pipe 1 of the unit 1 and the heating network steam supply main pipe 2 of the unit 2, and a heating network heater 3 and a heating network circulating water pump 4 are respectively installed on each heating pipeline.

[0021] The circulating water pump outlet gate valve 13 is a DN600mm gate valve, the circulating water pump inlet gate valve 16 is a DN500mm gate valve, the heater steam side A steam inlet gate valve 7 and the heater steam side B steam inlet gate valve 8 are DN500mm gate valves, the heater inlet gate valve 11 and the heater outlet gate valve 12 are DN400mm gate valves. The inlet and outlet pressures of the circulating water pump outlet gate valve 13 and the circulating water pump inlet gate valve 16 are 2.5MPa, the gate valve pressures of the heater steam side A steam inlet gate valve 7 and the heater steam side B steam inlet gate valve 8 are 2.5MPa, and the gate valve pressures of the heater inlet gate valve 11 and the heater outlet gate valve 12 are 2.5MPa.

[0022] When the heating network heater 3 fails, the A steam inlet valve 5 and B air inlet valve 6 installed at the steam inlet end of the heating network heater 3 and the heater water side inlet electric butterfly valve 9 and the heater water side outlet electric butterfly valve 10 installed at the output end of the heating network heater 3 cannot play a good sealing effect, so the heater steam side A steam inlet gate valve 7 is installed between the A steam inlet valve 5 and the heating network heater 3, the heater steam side B steam inlet gate valve 8 is installed between the B steam inlet valve 6 and the heating network heater 3, and the heater inlet is installed on the pipeline of the heater water side inlet electric butterfly valve 9. Gate valve 11, install a heater outlet gate valve 12 on the pipeline of the electric butterfly valve 10 on the water side outlet of the heater, and at the same time close the heater steam side A steam inlet gate valve 7, the heater steam side B steam inlet gate valve 8, the heater inlet gate valve 11 and the heater outlet gate valve 12, so as to effectively isolate the inlet and outlet ends of the heating network heater 3, and perform inspection and maintenance on the heating network heater 3. When the equipment is operating normally, open the heater steam side A steam inlet gate valve 7, the heater steam side B steam inlet gate valve 8, the heater inlet gate valve 11 and the heater outlet gate valve 12.

[0023] When the heating network circulating water pump 4 fails and needs maintenance, in addition to the circulating water pump outlet electric butterfly valve 14 arranged on the output end pipeline of the heating network circulating water pump 4, a circulating water pump outlet gate valve 13 is also provided, and in addition to the circulating water pump inlet electric butterfly valve 15 arranged on the input end pipeline of the heating network circulating water pump 4, a circulating water pump inlet gate valve 16 is also provided. The circulating water pump outlet gate valve 13 and the circulating water pump inlet gate valve 16 are closed at the same time to isolate the heating network circulating water pump 4, and the heating network circulating water pump 4 can be repaired.

[0024] This embodiment is only an illustrative description of the present application and does not limit its protection scope. Those skilled in the art may also make partial changes thereto, and as long as they do not exceed the spirit of the present application, they are all within the protection scope of the present application.

Claims

1. A quick disconnect device for steam-water pipelines of heating network heaters and circulating water pumps of heating network, characterized in that: The invention comprises a heat network steam supply mother pipe (1) for a unit 1 and a heat network steam supply mother pipe (2) for a unit 2. The heat network steam supply mother pipe (1) for a unit 1 and the heat network steam supply mother pipe (2) for a unit 2 are respectively connected to a plurality of heat network heaters (3) and a heat network circulating water pump (4). The steam inlet end of each heat network heater (3) is respectively connected to two steam inlet pipelines. An A steam inlet valve (5) and a steam inlet gate valve (7) on the steam side of the heater are installed on one steam inlet pipeline. A B steam inlet valve (6) and a steam inlet gate valve (8) on the steam side of the heater are installed on the other steam inlet pipeline. The output end of the heat network heater (3) is connected to two The pipelines are provided with a heater water side inlet electric butterfly valve (9) and a heater inlet gate valve (11) on one pipeline, and a heater water side outlet electric butterfly valve (10) and a heater outlet gate valve (12) on the other pipeline. The two pipelines are connected to one pipeline and connected to a heat network circulating water pump (4). The output end of the heat network circulating water pump (4) is connected to a circulating water pump outlet electric butterfly valve (14) and a circulating water pump outlet gate valve (13). The input end of the heat network circulating water pump (4) is connected to a circulating water pump inlet electric butterfly valve (15) and a circulating water pump inlet gate valve (16).

2. A quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump according to claim 1, characterized in that: The circulating water pump outlet gate valve (13) is a DN600mm gate valve, the circulating water pump inlet gate valve (16) is a DN500mm gate valve, and the inlet and outlet pressures of the circulating water pump outlet gate valve (13) and the circulating water pump inlet gate valve (16) are 2.5MPa.

3. A quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump according to claim 2, characterized in that: The steam inlet gate valve (7) on the steam side A of the heater and the steam inlet gate valve (8) on the steam side B of the heater are DN500mm gate valves, and the gate valve pressure of the steam inlet gate valve (7) on the steam side A of the heater and the steam inlet gate valve (8) on the steam side B of the heater is 2.5MPa.

4. A quick disconnect device for steam-water pipelines of a heating network heater and a heating network circulating water pump according to claim 3, characterized in that: The heater inlet gate valve (11) and the heater outlet gate valve (12) are DN400mm gate valves, and the gate valve pressure of the heater inlet gate valve (11) and the heater outlet gate valve (12) is 2.5MPa.

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