Heat supply network heater pressure guiding pipeline exhaust device

Abstract

The utility model provides a heating network heater pressure guiding pipeline exhaust device which comprises a washing assembly and a circulation assembly, and the circulation assembly comprises a water outlet pipe, a gas-water separation tank and a water return pipe which are connected in sequence. The flushing assembly comprises a base, a top cover and an inner core, the base is connected with the pressure guiding pipeline, a containing hole communicated with the pressure guiding pipeline is formed in the top face of the base, the inner core is rotatably arranged in the containing hole, the top cover is fixedly arranged at the top end of the containing hole, a main water outlet is formed in the top cover, and an auxiliary water outlet is formed in the base; the inner core comprises a conduction part and an operation part, an upper water outlet hole is formed in the top face of the conduction part, a side water outlet hole is formed in the side wall of the conduction part, and a water inlet is formed in the bottom face of the conduction part. When the upper water outlet hole is aligned with the main water outlet, the side water outlet hole and the auxiliary water outlet are staggered, and when the side water outlet hole is aligned with the auxiliary water outlet, the upper water outlet hole and the main water outlet are staggered. And the auxiliary water outlet can guide the liquid to the inner wall of the pressure guide pipe to wash small bubbles attached to the wall and exhaust gas in the pressure guide pipe.

Description

Technical Field

[0001] The utility model belongs to the field of liquid level detection of a heating network heater, in particular to an exhaust device for a pressure-leading pipeline of a heating network heater. Background Art

[0002] The heating network heater is an important part of the heating network. When the heating network heater is in a shutdown state for a long time, it needs to be filled with inert gas for protection. Therefore, when the heating network heater is started in a shutdown state, it is necessary to fill water and exhaust air first. In order to improve the heat exchange efficiency of the heating network heater, the gas in the pipeline needs to be emptied when filling water, and the liquid level height in the heating network heater is detected by the liquid level transmitter. The liquid level transmitter is connected to the pipeline to be tested through a pressure pipeline. When the pipeline to be tested discharges gas, part of the gas in the pressure pipeline will also be discharged. However, since the diameter of the pressure pipeline is much smaller than the diameter of the pipeline to be tested, it is difficult to completely discharge the gas in the pressure pipeline. And since the liquid flow rate in the pressure pipeline is less than the liquid flow rate in the pipeline to be tested, the small bubbles attached to the inner wall of the pressure pipeline are difficult to discharge. The remaining gas in the pressure pipeline and the small bubbles attached to the inner wall of the pipe will cause the liquid level transmitter to detect the liquid level of the heating network heater inaccurately. Utility Model Content

[0003] In view of this, the utility model aims to propose a heat network heater pressure pipeline exhaust device to solve the above technical problems. To achieve the above purpose, the technical solution of the utility model is as follows:

[0004] A heat network heater pressure pipeline exhaust device, characterized in that: the heat network heater pressure pipeline exhaust device comprises a circulation component and a flushing component; the circulation component comprises a water outlet pipe, a gas-water separation tank and a water return pipe connected in sequence, the water outlet pipe is connected to one end of the pressure pipeline, and the water return pipe is connected to the other end of the pressure pipeline through the flushing component;

[0005] The flushing assembly comprises: a base, a top cover and an inner core; the top of the base is connected to the pressure-leading pipeline, and a receiving hole connected to the pressure-leading pipeline is arranged on the top surface of the base; the top cover is fixedly arranged on the top of the receiving hole, and a main water outlet is arranged on the top cover; an auxiliary water outlet is also arranged on the top surface of the base, one end of the auxiliary water outlet is connected to the receiving hole, and the other end is connected to the pressure-leading pipeline;

[0006] The inner core is rotatably arranged in the receiving hole, a water inlet for receiving the return water pipe is arranged on the bottom surface of the inner core, an upper water outlet is arranged on the top surface of the inner core, and a side water outlet is arranged on the side wall of the inner core, and both the upper water outlet and the side water outlet are connected to the water inlet;

[0007] When the upper water outlet is aligned with the main water outlet, the side water outlet is offset from the auxiliary water outlet, and when the side water outlet is aligned with the auxiliary water outlet, the upper water outlet is offset from the main water outlet.

[0008] Furthermore, the inner core includes a conducting part and an operating part, the outer diameter of the conducting part is the same as the inner diameter of the accommodating hole, the operating part is arranged at the bottom end of the conducting part, the operating part and the conducting part are concentrically arranged and the outer diameter of the operating part is larger than the outer diameter of the conducting part; a first sealing part is arranged between the top surface of the operating part and the bottom surface of the base, the bottom surface of the operating part is rotatably connected to the return pipe, and a second sealing part is arranged at the connection between the operating part and the return pipe.

[0009] Furthermore, there are two main water outlets, which are respectively arranged on both sides of the center of the top cover; there are two auxiliary water outlets, which are respectively arranged on both sides of the center of the top surface of the base and are staggered with the main water outlet, and the line connecting the centers of the two auxiliary water outlets is perpendicular to the line connecting the centers of the two main water outlets.

[0010] Furthermore, the inner diameter of the main water outlet is equal to the inner diameter of the upper water outlet, the inner diameter of the auxiliary water outlet at one end close to the top surface of the base is smaller than the inner diameter of the other end, and the inner diameter of the auxiliary water outlet at one end close to the top surface of the base is smaller than the inner diameter of the main water outlet.

[0011] Furthermore, there are two upper water outlet holes, which are respectively arranged on both sides of the center of the top surface of the conducting part and can be aligned with the main water outlet. There are two side water outlet holes, which are respectively arranged on the side walls of the conducting part, and the axes of the side water outlet holes and the upper water outlet holes are located on the same plane.

[0012] Furthermore, an automatic exhaust valve is provided at the top of the gas-water separation tank.

[0013] Furthermore, a water pump is provided on the water return pipe.

[0014] Furthermore, an upper liquid level sensor is provided at the upper portion of the gas-water separation tank, and a lower liquid level sensor is provided at the bottom of the gas-water separation tank.

[0015] Compared with the prior art, the utility model of a heat network heater pressure pipeline exhaust device has the following advantages:

[0016] (1) A flushing assembly is provided on the pressure-conducting pipeline. The conducting part of the inner core of the flushing assembly can rotate under the drive of the operating part. The rotation of the conducting part can switch the flushing assembly between two working modes. The first working mode allows a large flow of liquid to pass through. The second working mode can provide a liquid with high flushing force to flush the inner wall of the pressure-conducting pipeline and remove the fine bubbles attached to the inner wall.

[0017] (2) The outlet pipe of the circulation component is connected to one end of the pressure-supply pipeline close to the liquid level transmitter, and the gas in the pressure-supply pipeline can be discharged into the gas-water separation tank through the outlet pipe. The automatic exhaust valve can automatically discharge the gas in the gas-water separation tank or close as the pressure in the gas-water separation tank increases or decreases;

[0018] (3) The water pump can drive the liquid to circulate along the pressure-inducing pipeline, the water outlet pipe, the gas-water separation tank and the return pipe. During the circulation process, the gas in the pressure-inducing pipeline is taken away to the gas-water separation tank and discharged from the automatic exhaust valve;

[0019] (4) The upper liquid level sensor and the lower liquid level sensor installed on the gas-water separation tank can monitor the liquid level in the gas-water separation tank to prevent the gas from flowing back into the pressure-inducing pipeline.

[0020] In the utility model, after the liquid has circulated through the flushing component and the circulation component for multiple times, the gas in the pressure-leading pipeline and even the tiny bubbles attached to the inner wall of the pressure-leading pipeline can be discharged from the pressure-leading pipeline. The liquid level transmitter is no longer affected by the residual gas in the pressure-leading pipeline and can accurately detect the liquid level of the heating network heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 It is a structural schematic diagram of the exhaust device of the pressure-leading pipeline of the heating network heater;

[0023] Figure 2 It is a schematic diagram of the structure of the flushing assembly of the exhaust device of the pressure-conducting pipeline of the heating network heater;

[0024] Figure 3 The flushing assembly is along Figure 2 Sectional view along line AA;

[0025] Figure 4 The flushing assembly is along Figure 2 Sectional view along the midline BB;

[0026] Explanation of the reference numerals in the accompanying drawings: 1. pipeline to be tested; 2. operating unit; 3. liquid level transmitter; 4. pressure-leading pipeline; 5. water outlet pipe; 6. automatic exhaust valve; 7. exhaust pipeline; 8. upper liquid level sensor; 9. air-water separation tank; 10. lower liquid level sensor; 11. return pipe; 12. water pump; 13. flushing assembly; 14. return water three-way valve; 15. auxiliary water outlet; 16. base; 17. main water outlet; 18. top cover; 19. side water outlet; 20. conducting part; 21. upper water outlet. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] A heat network heater pressure pipeline exhaust device, such as Figure 1 As shown, a liquid level transmitter 3 is connected to the pipeline 1 to be tested through a pressure pipeline 4. The innovation of the utility model is that the exhaust device of the pressure pipeline of the heating network heater includes a circulation component and a flushing component 13. The circulation component includes an outlet pipe 5, a gas-water separation tank 9 and a return pipe 11 connected in sequence. The outlet pipe is connected to one end of the pressure pipeline, and the return pipe is connected to the other end of the pressure pipeline through the flushing component so that the liquid can circulate along the pressure pipeline, the outlet pipe, the gas-water separation tank and the return pipe. Figure 2 , 3As shown in Figure 4, the flushing assembly includes a base 16, a top cover 18 and an inner core. The base is cylindrical, and a receiving hole connected to the pressure-conducting pipeline is arranged on the top surface of the base, and the top surface of the base outside the receiving hole is fixedly connected to the pressure-conducting pipeline; the top cover is fixedly arranged on the top of the receiving hole, the top surface of the top cover is flush with the top surface of the base, the outer diameter of the top cover is the same as the inner diameter of the receiving hole, and a main water outlet 17 is arranged on the top cover, and there are two main water outlets, which are respectively located at two ends of the center of the top cover. side and symmetrically arranged; an auxiliary water outlet 15 is also arranged on the top surface of the base, one end of the auxiliary water outlet is connected with the accommodating hole, the other end of the auxiliary water outlet extends toward the top surface of the base and gradually tilts toward the inner wall of the pressure-leading pipeline, and finally is connected with the pressure-leading pipeline on the top surface of the base. There are two auxiliary water outlets, which are respectively located on both sides of the center of the top cover and are symmetrically arranged but staggered with the main water outlet, and the line connecting the centers of the two auxiliary water outlets is perpendicular to the line connecting the centers of the two main water outlets.

[0032] The inner core is rotatably arranged in the accommodating hole, and the inner core includes a conducting part 20 and an operating part 2. The operating part is arranged at the bottom end of the conducting part, and the top surface of the conducting part is fitted with the bottom surface of the top cover. The outer diameter of the conducting part is the same as the inner diameter of the accommodating hole, and the side wall of the conducting part is fitted with the accommodating hole. Two upper water outlet holes 21 are arranged on the top surface of the conducting part, and the two upper water outlet holes are respectively located on both sides of the center of the top surface of the operating part and are symmetrically arranged. Two side water outlet holes 19 are arranged on the side wall of the conducting part, and the axes of the two side water outlet holes and the axes of the two upper water outlet holes are located on the same plane.

[0033] The operating part is cylindrical, the operating part and the conducting part are arranged concentrically, and the outer diameter of the operating part is larger than the outer diameter of the conducting part. In order to facilitate the operation of the staff, the outer diameter of the operating part is larger than the outer diameter of the base. A water inlet for accommodating the return pipe is arranged on the bottom surface of the operating part, and the upper water outlet and the side water outlet are both connected to the water inlet. A first sealing member is arranged between the top surface of the operating part and the bottom surface of the base, and the first sealing member can be a sealing gasket. The bottom surface of the operating part is rotatably connected to the return pipe, and a second sealing member is arranged at the connection between the operating part and the return pipe, and the second sealing member can be a rotating sealing ring.

[0034] The rotating operating part can drive the conducting part to rotate, and the rotation of the conducting part can switch the flushing component between two working modes:

[0035] The first working mode is that when the upper water outlet is aligned with the main water outlet, the liquid flows in from the water inlet, passes through the upper water outlet and flows out from the main water outlet. At this time, the side water outlet is misaligned with the auxiliary water outlet and is not connected.

[0036] The second working mode is that when the side water outlet is aligned with the auxiliary water outlet, the liquid flows in from the water inlet through the side water outlet and flows out from the auxiliary water outlet. At this time, the upper water outlet is offset from the main water outlet and is not connected.

[0037] The inner diameter of the main water outlet is the same as the inner diameter of the upper water outlet, the inner diameter of the auxiliary water outlet at one end of the accommodating hole is the same as the inner diameter of the side water outlet, the inner diameter of the auxiliary water outlet at one end of the top surface of the base is smaller than the inner diameter of the main water outlet, and the inner diameter of the auxiliary water outlet at one end of the top surface of the base is smaller than the inner diameter at one end of the accommodating hole. When liquid flows into the auxiliary water outlet, the pressure will increase due to the change in the inner diameter, and a larger flushing force will be generated when flowing out from the auxiliary water outlet.

[0038] When the flushing component is in the first working mode, since the inner diameters of the upper water outlet and the main water outlet are larger, a larger flow rate of liquid can flow through, which is suitable for the state when the liquid level transmitter and the pressure pipeline are working normally; when the flushing component is in the second working mode, since the inner diameter of the auxiliary water outlet located at one end of the top surface of the base is smaller, a larger flushing force will be generated, and since the auxiliary water outlet is inclined and the end located on the top surface of the base is close to the inner wall of the pressure pipeline, it is suitable for flushing the inner wall of the pressure pipeline, thereby removing the small bubbles attached to the inner wall of the pressure pipeline.

[0039] The scheme in this embodiment is for illustrative purposes only, and the number, size and distribution of the upper water outlets, side water outlets, main water outlets and auxiliary water outlets can satisfy the requirement that when the upper water outlets and the main water outlets are aligned to discharge water, the side water outlets and the auxiliary water outlets are misaligned and do not discharge water.

[0040] The circulation component includes an outlet pipe, an air-water separation tank and a return pipe which are connected in sequence. The outlet pipe is connected to one end of the pressure-leading pipeline close to the liquid level transmitter through an outlet three-way valve. The first interface, the second interface and the third interface of the outlet three-way valve are respectively connected to the liquid level transmitter, one end of the outlet pipe and one end of the pressure-leading pipeline. Liquid can flow from the pressure-leading pipeline through the outlet three-way valve to the outlet pipe or the liquid level transmitter; the return pipe is connected to the water inlet on the bottom surface of the operating part through a return three-way valve 14. The first interface, the second interface and the third interface of the return three-way valve are respectively connected to the water inlet, the other end of the return pipe and the pipeline to be tested. Liquid can flow from the pipeline to be tested or the return pipe through the return three-way valve into the water inlet.

[0041] The air-water separation tank is a spherical water storage tank. The other end of the water outlet pipe is connected to the upper part of the air-water separation tank, and one end of the water return pipe is connected to the lower part of the air-water separation tank. In this way, a circulatory passage can be formed, which flows out from the pressure-leading pipeline and passes through the water outlet pipe, the air-water separation tank, the water return pipe in sequence, and then flows back to the pressure-leading pipeline.

[0042] In this embodiment, since the liquid level transmitter is arranged at the highest point of the pressure-leading pipeline, according to the flow direction of the gas, the water outlet three-way valve should be arranged on the pressure-leading pipeline as close to the liquid level transmitter as possible so that the gas in the pressure-leading pipeline can be discharged; the other end of the water outlet pipe is connected to the upper middle part of the gas-water separation tank, so that the liquid drawn out from the pressure-leading pipeline by the water outlet pipe can flow to the lower part of the gas-water separation tank, and the gas in the pressure-leading pipeline can flow to the upper part of the gas-water separation tank to achieve gas-water separation; one end of the return water pipe is connected to the bottom of the gas-water separation tank. Due to the flow direction of the liquid, the return water pipe can avoid mixing the gas into the pressure-leading pipeline again when returning water to the pressure-leading pipeline.

[0043] The top of the gas-water separation tank is connected to an automatic exhaust valve 6 through an exhaust pipe 7. When the liquid level in the gas-water separation tank gradually rises, the gas in the gas-water separation tank is gradually discharged from the automatic exhaust valve due to the increase in pressure. After the pressure in the gas-water separation tank decreases, the automatic exhaust valve can automatically close.

[0044] An upper liquid level sensor 8 is provided on the upper part of the gas-water separation tank, and a lower liquid level sensor 10 is provided on the bottom of the gas-water separation tank. Both the upper liquid level sensor and the lower liquid level sensor can monitor the liquid level in the gas-water separation tank to prevent the gas from flowing back into the pressure-inducing pipeline during the circulation process. A water pump 12 is provided on the return pipe, and the water pump can send the liquid in the gas-water separation tank into the pressure-inducing pipeline through the return pipe, so that the liquid can circulate in the pressure-inducing pipeline, the outlet pipe, the gas-water separation tank and the return pipe.

[0045] In this embodiment, the installation height of the upper liquid level sensor on the gas-water separation tank should be higher than the other end of the water outlet pipe and lower than the exhaust pipe, and the installation height of the lower liquid level sensor on the gas-water separation tank should be higher than one end of the return pipe and lower than the other end of the water outlet pipe. When the upper liquid level sensor detects liquid, it means that the gas-water separation tank is about to be filled with liquid, and the water pump can be turned on to circulate and exhaust and continue to discharge the remaining gas in the pressure-leading pipeline; when the lower liquid level sensor cannot detect liquid, the water pump should be turned off in time to prevent gas from flowing back into the pressure-leading pipeline.

[0046] The working process of this utility model is:

[0047] When the heating network heater is started from the shutdown state, the water filling and exhaust mode is first performed to fill water into the pipeline to be tested. During water filling, the liquid enters the pressure-leading pipeline from the pipeline to be tested through the return water three-way valve. At this time, the return water three-way valve is in an open state at the interface connected to the pipeline to be tested and the pressure-leading pipeline, and the interface connected to the other end of the return water pipe is closed. The liquid can flow from the pipeline to be tested to the pressure-leading pipeline, while the outlet water three-way valve is in an open state at the interface connected to the pressure-leading pipeline and the liquid level transmitter, and the interface connected to the liquid level transmitter is closed. The liquid can flow from the pressure-leading pipeline to the outlet water pipe; at this time, the flushing component is in the first working mode. In this process, the liquid in the pressure-leading pipeline pushes the gas into the gas-water separation tank through the outlet water three-way valve and the outlet water pipe. The liquid entering the gas-water separation tank flows downward and remains in the gas-water separation tank, and the gas flows upward and is discharged from the automatic exhaust valve;

[0048] When the gas in the pressure-supplying pipeline is basically exhausted, more and more liquid remains in the gas-water separation tank, and the liquid level in the gas-water separation tank rises rapidly to continue to discharge the gas remaining in the gas-water separation tank through the automatic exhaust valve. When the upper liquid level sensor detects the liquid, it means that the liquid level in the gas-water separation tank has reached a sufficient height, and the circulating exhaust mode is entered at this time. The interface connecting the return water three-way valve and the pipeline to be tested is closed, and the interface connected to the other end of the return water pipe is opened, so that the liquid can flow from the return water pipe to the pressure-supplying pipeline; at this time, the water pump is started and the flushing component is adjusted to the second working mode. The water pump sends the liquid in the gas-water separation tank from the return water pipe into the pressure-supplying pipeline, and the liquid begins to circulate in the pressure-supplying pipeline, the outlet pipe, the gas-water separation tank and the return water pipe. When the liquid flows through the flushing component, it flows out from the secondary outlet of the flushing component and flushes the inner wall of the pressure-supplying pipeline, and takes away the tiny bubbles attached to the inner wall of the pressure-supplying pipeline to the gas-water separation tank for gas-water separation before being discharged from the automatic exhaust valve.

[0049] The effects of the above scheme are described below:

[0050] (1) A flushing assembly is provided on the pressure-conducting pipeline. The conducting part of the inner core of the flushing assembly can rotate under the drive of the operating part. The rotation of the conducting part can switch the flushing assembly between two working modes. The first working mode allows a large flow of liquid to pass through. The second working mode can provide a liquid with high flushing force to flush the inner wall of the pressure-conducting pipeline and remove the fine bubbles attached to the inner wall.

[0051] (2) The outlet pipe of the circulation component is connected to one end of the pressure-supply pipeline close to the liquid level transmitter, and the gas in the pressure-supply pipeline can be discharged into the gas-water separation tank through the outlet pipe. The automatic exhaust valve can automatically discharge the gas in the gas-water separation tank or close as the pressure in the gas-water separation tank increases or decreases;

[0052] (3) The water pump can drive the liquid to circulate along the pressure-inducing pipeline, the water outlet pipe, the gas-water separation tank and the return pipe. During the circulation process, the gas in the pressure-inducing pipeline is taken away to the gas-water separation tank and discharged from the automatic exhaust valve;

[0053] (4) The upper liquid level sensor and the lower liquid level sensor installed on the gas-water separation tank can monitor the liquid level in the gas-water separation tank to prevent the gas from flowing back into the pressure-inducing pipeline.

[0054] In the utility model, after the liquid has circulated through the flushing component and the circulation component for multiple times, the gas in the pressure-leading pipeline and even the tiny bubbles attached to the inner wall of the pressure-leading pipeline can be discharged from the pressure-leading pipeline. The liquid level transmitter is no longer affected by the residual gas in the pressure-leading pipeline and can accurately detect the liquid level of the heating network heater.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat network heater pressure pipeline exhaust device, characterized in that: The exhaust device of the pressure-leading pipeline of the heating network heater includes a circulation component and a flushing component; the circulation component includes a water outlet pipe, a gas-water separation tank and a water return pipe connected in sequence, the water outlet pipe is connected to one end of the pressure-leading pipeline, and the water return pipe is connected to the other end of the pressure-leading pipeline through the flushing component; The flushing assembly comprises: a base, a top cover and an inner core; the top of the base is connected to the pressure-conducting pipeline, and a receiving hole connected to the pressure-conducting pipeline is arranged on the top surface of the base; the top cover is fixedly arranged on the top of the receiving hole, and a main water outlet is arranged on the top cover; an auxiliary water outlet is also arranged on the top surface of the base, one end of the auxiliary water outlet is connected to the receiving hole, and the other end is connected to the pressure-conducting pipeline; The inner core is rotatably arranged in the receiving hole, a water inlet for receiving the return water pipe is arranged on the bottom surface of the inner core, an upper water outlet is arranged on the top surface of the inner core, and a side water outlet is arranged on the side wall of the inner core, and the upper water outlet and the side water outlet are both connected to the water inlet; When the upper water outlet is aligned with the main water outlet, the side water outlet is offset from the auxiliary water outlet, and when the side water outlet is aligned with the auxiliary water outlet, the upper water outlet is offset from the main water outlet.

2. The exhaust device for the pressure-inducing pipeline of a heating network heater according to claim 1 is characterized in that: The inner core includes a conducting part and an operating part, the outer diameter of the conducting part is the same as the inner diameter of the accommodating hole, the operating part is arranged at the bottom end of the conducting part, the operating part and the conducting part are arranged concentrically, and the outer diameter of the operating part is larger than the outer diameter of the conducting part; a first sealing member is arranged between the top surface of the operating part and the bottom surface of the base, the bottom surface of the operating part is rotatably connected to the return pipe, and a second sealing member is arranged at the connection between the operating part and the return pipe.

3. The exhaust device for the pressure-conducting pipeline of a heating network heater according to claim 1 is characterized in that: There are two main water outlets, which are respectively arranged on both sides of the center of the top cover; there are two auxiliary water outlets, which are respectively arranged on both sides of the center of the top surface of the base and are staggered with the main water outlet, and the line connecting the centers of the two auxiliary water outlets is perpendicular to the line connecting the centers of the two main water outlets.

4. The exhaust device for the pressure-conducting pipeline of a heating network heater according to claim 1 is characterized in that: There are two upper water outlet holes, which are respectively arranged on both sides of the center of the top surface of the conducting part and can be aligned with the main water outlet. There are two side water outlet holes, which are respectively arranged on the side walls of the conducting part, and the axes of the side water outlet holes and the upper water outlet holes are located on the same plane.

5. The exhaust device for the pressure-inducing pipeline of a heating network heater according to claim 1 is characterized in that: The inner diameter of the main water outlet is equal to the inner diameter of the upper water outlet, the inner diameter of the auxiliary water outlet at one end close to the top surface of the base is smaller than the inner diameter of the other end, and the inner diameter of the auxiliary water outlet at one end close to the top surface of the base is smaller than the inner diameter of the main water outlet.

6. The exhaust device for the pressure-inducing pipeline of a heating network heater according to claim 1, characterized in that: An automatic exhaust valve is arranged at the top of the gas-water separation tank.

7. The exhaust device for the pressure-conducting pipeline of a heating network heater according to claim 1 is characterized in that: The water return pipe is provided with a water pump.

8. The exhaust device for the pressure-conducting pipeline of a heating network heater according to claim 1, characterized in that: An upper liquid level sensor is arranged at the upper part of the gas-water separation tank, and a lower liquid level sensor is arranged at the bottom of the gas-water separation tank.

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