A hot water recycling device for a gas power generation equipment

Abstract

The present invention relates to the technical field of hot water recycling, and discloses a hot water recycling device for a gas power generation device, including a linkage heat exchange mechanism, which is internally provided with a spiral copper tube capable of rotating around the axis of a vertical heating shell and enabling gas flow, and a spiral conveyor rod capable of rotating and generating a downward driving force on the surrounding liquid; and a controllable pressure control mechanism, which is internally provided with a valve plate capable of blocking the bottom end of a first liquid delivery hole and a spiral spring that exerts an upward elastic pressure on the valve plate. This hot water recycling device for a gas power generation device is installed at the tail of the combustion exhaust port, and can use the high-temperature exhaust gas to heat the recyclable liquid, thereby converting the residual heat energy in the exhaust gas into hot water supply to improve the effective utilization rate of gas heat energy.

Description

Technical Field

[0001] The present invention relates to the technical field of hot water recycling, and specifically to a hot water recycling device for gas power generation equipment. Background Art

[0002] The working principle of a gas generator set includes the following steps: 1. Gas supply: The gas generator set obtains gas from a gas supply system such as a natural gas pipeline or a gas storage tank. This gas is processed through a gas filter and a pressure regulator to ensure the purity and appropriate pressure of the gas; 2. Fuel mixing and intake: The gas enters a gas internal combustion engine and mixes with air to form a combustible mixture. The intake process usually uses a turbocharger to compress the air to increase the intake density and combustion efficiency; 3. Combustion process: The combustible mixture is injected into the cylinder and ignited by a spark under the action of an ignition system. The combustion generates high-temperature and high-pressure gases. These gases push the piston to move, converting chemical energy into mechanical energy; 4. In a gas turbine, the outside atmosphere enters the engine through an intake duct and is compressed in a compressor to increase the air flow pressure and temperature. The high-pressure air enters the combustion chamber, mixes with fuel and burns to generate high-temperature and high-pressure gas, and the gas forms high-temperature gas after combustion. The high-temperature gas is directly discharged, resulting in obvious energy waste. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a hot water recycling device for gas power generation equipment, which is installed at the tail of the combustion exhaust port and can use the high-temperature exhaust gas to heat the recyclable liquid, thereby converting the residual heat energy in the exhaust gas into hot water supply to improve the effective utilization rate of gas heat energy and solve the above technical problems.

[0004] To achieve the above object, the present invention provides the following technical solution: A hot water recycling device for gas power generation equipment, including a vertical heating housing, a heating chamber arranged inside the upper half area of the vertical heating housing, a first component mounting hole arranged at the center of the top of the vertical heating housing, a plurality of first ventilation ports arranged around the first component mounting hole, a condensate collection chamber arranged at the bottom of the heating chamber, an exhaust passage arranged at the bottom end of the vertical heating housing, an intake passage communicating with the circumferential surface of the condensate collection chamber, a first liquid delivery hole arranged inside the exhaust passage and communicating with the bottom of the condensate collection chamber, and support legs fixedly installed around the exhaust passage. It further includes a linkage heat exchange mechanism, which internally has a spiral copper tube that can rotate around the axis of the vertical heating housing and can realize gas flow, and a spiral conveyor rod that can rotate and generate a downward driving force on the surrounding liquid; and a controllable pressure control mechanism, which internally has a valve plate that can block the bottom end of the first liquid delivery hole and a spiral spring that exerts an upward elastic pressure on the valve plate.

[0005] Preferably, the linkage heat exchange mechanism includes an upper hollow disc, a lower hollow disc and a hollow connecting block that are located inside the heating chamber and can rotate. An upper liquid flow chamber and a lower liquid flow chamber are respectively arranged inside the upper hollow disc and the lower hollow disc. A plurality of second air vents that communicate with the upper and lower surfaces thereof are arranged inside the lower hollow disc. A first hollow tube that is integrally structured with the upper hollow disc and penetrates through the first component mounting hole is arranged at the center of the upper end surface of the upper hollow disc. The tube body of the first hollow tube is installed inside the first component mounting hole through a bearing. A belt groove is arranged on the circumferential surface of the tube body of the first hollow tube above the vertical heating outer shell. A third liquid delivery hole with an open top end and a bottom end communicating with the upper liquid flow chamber is arranged inside the first hollow tube. A plurality of annularly arrayed spiral copper tubes are installed between the opposite ends of the upper hollow disc and the lower hollow disc, and the inner holes of the spiral copper tubes communicate with the upper liquid flow chamber and the lower liquid flow chamber. A second hollow tube that is integrally structured with the bottom end center of the lower hollow disc is arranged.

[0006] Preferably, the tube body of the second hollow tube is installed at the center hole of the hollow connecting block through a mechanical seal structure. A liquid reserve cavity is arranged around the second hollow tube on the hollow connecting block. A second liquid delivery hole that communicates with the lower liquid flow chamber and the liquid reserve cavity is arranged inside the second hollow tube. A horizontal gas flow channel that penetrates the circumferential surface of the vertical heating outer shell and communicates with the liquid reserve cavity is arranged on the circumferential surface of the hollow connecting block. A spiral conveyor rod located inside the first liquid delivery hole is fixedly installed at the bottom end of the second hollow tube.

[0007] Preferably, there is a gap for gas flow between the outer circumferential surface of the upper hollow disc and the inner circumferential surface of the heating chamber.

[0008] Preferably, when the spiral conveyor rod rotates with the second hollow tube, it generates a downward driving direction for the surrounding liquid.

[0009] Preferably, the controllable pressure control mechanism includes a vertical hollow column. The top of the vertical hollow column is provided with an upper fixed end which is integrally structured with it and fixedly installed at the bottom end of the exhaust passage. A cooling liquid flow cavity is arranged inside the vertical hollow column. A first liquid flow hole communicating with the bottom end of the cooling liquid flow cavity and a longitudinal rod body through hole are respectively arranged at the bottom end and the edge part of the vertical hollow column. Inside the vertical hollow column and located in the cooling liquid flow cavity, there are a component limiting ring and a valve plate that can move axially along the cooling liquid flow cavity. A longitudinal telescopic rod penetrating through the longitudinal rod body through hole is fixedly installed on the bottom end face of the component limiting ring. A high-pressure sealing ring is installed between the rod body of the longitudinal telescopic rod and the longitudinal rod body through hole in the vertical hollow column. A bottom connection ring is installed at the bottom end of the longitudinal rod body through hole. A second liquid flow hole is arranged at the center of the component limiting ring. A third liquid flow hole communicating the first liquid delivery hole and the top end of the cooling liquid flow cavity is arranged at the center of the upper fixed end. A helical spring in a compressed state is installed between the upper surface of the component limiting ring and the lower surface of the valve plate. A plurality of liquid flow grooves with concave structures are arranged on the circumferential surface of the valve plate. A rubber sealing ring is embedded on the upper surface of the valve plate.

[0010] Preferably, the frictional force formed by the high-pressure sealing ring on the rod body of the longitudinal telescopic rod is sufficient to keep the longitudinal telescopic rod stable during operation.

[0011] Preferably, the horizontal height of the top of the rubber sealing ring is higher than the horizontal height of the top of the valve plate. The structural radius of the inner ring of the rubber sealing ring is larger than the structural radius of the third liquid flow hole, and the structural radius of the outer ring is smaller than the distance between the liquid flow groove and the axis of the valve plate.

[0012] Compared with the prior art, the present invention provides a hot water recycling device for a gas power generation device, which has the following beneficial effects:

[0013] Installed at the tail of the combustion exhaust port, it can use the high-temperature exhaust gas to heat the recyclable liquid, thereby converting the residual heat energy in the exhaust gas into hot water supply to improve the effective utilization rate of gas heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the present invention;

[0015] Figure 2 is a perspective sectional view of the present invention;

[0016] Figure 3 is a perspective view of the linkage heat exchange mechanism in the present invention;

[0017] Figure 4 is a perspective sectional view of the linkage heat exchange mechanism in the present invention;

[0018] Figure 5 is a three-dimensional view of the controllable pressure control mechanism in the present invention;

[0019] Figure 6 is a three-dimensional sectional view of the controllable pressure control mechanism in the present invention;

[0020] Figure 7 is a three-dimensional assembly view of the valve plate and the rubber sealing ring in the present invention.

[0021] Wherein: 1. Vertical heating housing; 2. Heating chamber; 3. First component mounting hole; 4. First vent; 5. Condensate collection chamber; 6. Exhaust passage; 7. Intake passage; 8. First liquid delivery hole; 9. Support leg; 10. Linkage heat exchange mechanism; 101. Upper hollow disk; 102. First hollow tube; 103. Belt groove; 104. Lower hollow disk; 105. Upper liquid flow chamber; 106. Lower liquid flow chamber; 107. Spiral copper tube; 108. Second vent; 109. Second hollow tube; 1010. Hollow connection block; 1011. Horizontal gas flow passage; 1012. Liquid reserve cavity; 1013. Second liquid delivery hole; 1014. Spiral conveyor rod; 1015. Third liquid delivery hole; 11. Controllable pressure control mechanism; 111. Vertical hollow column; 112. Cooling liquid flow chamber; 113. Upper fixed end; 114. First liquid flow hole; 115. Longitudinal rod perforation; 116. High-pressure sealing ring; 117. Component limit ring; 118. Second liquid flow hole; 119. Third liquid flow hole; 1110. Valve plate; 1111. Liquid flow groove; 1112. Rubber sealing ring; 1113. Longitudinal telescopic rod; 1114. Bottom connection ring; 1115. Spiral spring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 and Figure 2, A hot water recycling device for a gas power generation equipment, comprising a vertical heating outer shell 1, a heating chamber 2 arranged inside the upper half area of the vertical heating outer shell 1, a first component mounting hole 3 arranged at the center of the top of the vertical heating outer shell 1, a plurality of first ventilation openings 4 arranged around the first component mounting hole 3, a condensate collection chamber 5 arranged at the bottom of the heating chamber 2, an exhaust passage 6 arranged at the bottom end of the vertical heating outer shell 1, an intake passage 7 communicating with the circumferential surface of the condensate collection chamber 5, a first liquid delivery hole 8 arranged inside the exhaust passage 6 and communicating with the bottom of the condensate collection chamber 5, and support legs 9 fixedly installed around the exhaust passage 6. Connect the intake passage 7 to the tail exhaust port of the gas chamber, then connect the horizontal gas flow passage 1011 and the first hollow tube 102 to a circulating pipeline providing liquid, and finally link the pulley groove 103 with a belt installed at the end of the rotor of the driving motor through a belt.

[0024] To achieve the functions of heating the flowing liquid and driving the condensate in a specific direction, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a linkage heat exchange mechanism 10 needs to be set up. Inside it, there is a spiral copper tube 107 that can rotate around the axis of the vertical heating outer shell 1 and can realize gas flow, and a spiral conveyor rod 1014 that can rotate and generate a downward driving force on the surrounding liquid. The high-temperature exhaust gas enters through the intake passage 7 and into the interior of the heating chamber 2. At the same time, when the driving motor is turned on, the belt will drive the first hollow tube 102, the upper hollow disk 101, and the lower hollow disk 104 to rotate, and at the same time drive the spiral copper tube 107 to rotate. The liquid flows through the horizontal gas flow passage 1011, the first hollow tube 102, and the spiral copper tube 107. The high-temperature gas and the flowing liquid meet at the spiral copper tube 107, forming a heat exchange phenomenon. At this time, the liquid is heated, and condensate will form on the outer wall of the spiral copper tube 107. The rotating spiral copper tube 107 will cause the water droplets attached to its surface to be thrown out, thereby reducing the obstruction to heat transfer caused by the accumulated water droplets. Finally, the gas will be discharged outward through the first ventilation openings 4.

[0025] Regarding the specific structure of the linkage heat exchange mechanism 10, please refer to Figure 3 and Figure 4, including an upper hollow disk 101, a lower hollow disk 104 and a hollow connecting block 1010 which are located inside the heating chamber 2 and can rotate. In order to realize the normal flow of gas, there needs to be a gap for gas flow between the outer circumferential surface of the upper hollow disk 101 and the inner circumferential surface of the heating chamber 2. An upper liquid flow chamber 105 and a lower liquid flow chamber 106 are respectively arranged inside the upper hollow disk 101 and the lower hollow disk 104. A plurality of second air vents 108 communicating with its upper and lower surfaces are arranged inside the lower hollow disk 104. A first hollow tube 102 which is integrally structured with the upper hollow disk 101 and penetrates through the first component mounting hole 3 is arranged at the center of the upper end surface of the upper hollow disk 101. The tube body of the first hollow tube 102 is installed inside the first component mounting hole 3 through a bearing. A belt groove 103 is arranged on the circumferential surface of the tube body of the first hollow tube 102 above the vertical heating outer shell 1. A third liquid delivery hole 1015 with an open top end and a bottom end communicating with the upper liquid flow chamber 105 is arranged inside the first hollow tube 102. A plurality of annularly arrayed spiral copper tubes 107 are installed between the opposite ends of the upper hollow disk 101 and the lower hollow disk 104, and the inner holes of the spiral copper tubes 107 communicate with the upper liquid flow chamber 105 and the lower liquid flow chamber 106. A second hollow tube 109 which is integrally structured with the lower hollow disk 104 is arranged at the center of the bottom end of the lower hollow disk 104. The tube body of the second hollow tube 109 is installed at the central hole of the hollow connecting block 1010 through a mechanical seal structure. A liquid reserve cavity 1012 is arranged around the second hollow tube 109 on the hollow connecting block 1010. A second liquid delivery hole 1013 communicating with the lower liquid flow chamber 106 and the liquid reserve cavity 1012 is arranged inside the second hollow tube 109. A horizontal gas flow channel 1011 which penetrates through the circumferential surface of the vertical heating outer shell 1 and communicates with the liquid reserve cavity 1012 is arranged on the circumferential surface of the hollow connecting block 1010. A spiral conveyor rod 1014 located inside the first liquid delivery hole 8 is fixedly installed at the bottom end of the second hollow tube 109. In order to realize the timely discharge of condensed water, when the spiral conveyor rod 1014 rotates with the second hollow tube 109, it needs to generate a downward driving direction for the surrounding liquid.

[0026] For the timely discharge effect of condensed water without affecting the gas flow, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7, it is necessary to set up a controllable pressure control mechanism 11, which is internally provided with a valve plate 1110 capable of blocking the bottom end of the first liquid delivery hole 8 and a spiral spring 1115 that exerts an upward elastic pressure on the valve plate 1110. When the conveying pressure of the liquid by the spiral conveyor rod 1014 is greater than the elastic strength of the spiral spring 1115, the valve plate 1110 will move downward, and then the condensed water will be discharged outward along the third liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the second liquid flow hole 118 and the first liquid flow hole 114, so as to realize the timely discharge of the condensed water. Due to the elastic effect of the spiral spring 1115, the condensed water will fill the gap of the rubber sealing ring 1112, and the high-temperature gas cannot flow through the gap, thus preventing gas leakage. At the same time, by adjusting the distance between the adjusting component limiting ring 117 and the valve plate 1110, the elastic strength of the spiral spring 1115 is changed, and then the pressure when the valve plate 1110 is opened is changed.

[0027] For the specific structure of the controllable pressure control mechanism 11, please refer to Figure 5 , Figure 6 and Figure 7, including a vertical hollow column 111, the top of the vertical hollow column 111 is provided with an upper fixed end 113 which is of an integral structure with it and fixedly installed at the bottom end of the exhaust passage 6. A cooling liquid flow cavity 112 is arranged inside the vertical hollow column 111. A first liquid flow hole 114 and a longitudinal rod body through hole 115 communicating with the bottom end of the cooling liquid flow cavity 112 are respectively arranged at the bottom end and the edge part of the vertical hollow column 111. A component limiting ring 117 and a valve plate 1110 capable of axially moving along the cooling liquid flow cavity 112 are placed inside the vertical hollow column 111 in the cooling liquid flow cavity 112. A longitudinal telescopic rod 1113 penetrating through the longitudinal rod body through hole 115 is fixedly installed on the bottom end face of the component limiting ring 117. A high-pressure sealing ring 116 is installed between the rod body of the longitudinal telescopic rod 1113 and the longitudinal rod body through hole 115 in the vertical hollow column 111. In order to prevent liquid and gas leakage, the frictional force formed by the high-pressure sealing ring 116 on the rod body of the longitudinal telescopic rod 1113 should be sufficient to keep the longitudinal telescopic rod 1113 stable during operation. A bottom connecting ring 1114 is installed at the bottom end of the longitudinal rod body through hole 115. A second liquid flow hole 118 is arranged at the center of the component limiting ring 117. A third liquid flow hole 119 communicating with the first liquid delivery hole 8 and the top end of the cooling liquid flow cavity 112 is arranged at the center of the upper fixed end 113. A helical spring 1115 in a compressed state is installed between the upper surface of the component limiting ring 117 and the lower surface of the valve plate 1110. A plurality of liquid flow grooves 1111 with an in concave structure are arranged on the circumferential surface of the valve plate 1110. A rubber sealing ring 1112 is embedded on the upper surface of the valve plate 1110. In order to prevent liquid and gas leakage, the horizontal height of the top of the rubber sealing ring 1112 is higher than the horizontal height of the top of the valve plate 1110. The structural radius of the inner ring of the rubber sealing ring 1112 is greater than the structural radius of the third liquid flow hole 119, and the structural radius of the outer ring is less than the distance between the liquid flow groove 1111 and the axis of the valve plate 1110.

[0028] In use, the intake passage 7 is docked with the tail exhaust port of the gas chamber, then the horizontal gas flow passage 1011 and the first hollow tube 102 are docked with a circulating pipeline for supplying liquid, and finally the belt groove 103 is linked with a belt mounted at the end of the rotor of the driving motor through a belt. When the driving motor is started, the belt will drive the first hollow tube 102, the upper hollow disc 101 and the lower hollow disc 104 to rotate, and at the same time drive the spiral copper tube 107 to rotate. The liquid flows through the horizontal gas flow passage 1011, the first hollow tube 102 and the spiral copper tube 107. The high-temperature gas and the flowing liquid meet at the spiral copper tube 107 to form a heat exchange phenomenon. At this time, the liquid is heated, and condensed water will form on the outer wall of the spiral copper tube 107. The rotating spiral copper tube 107 will throw off the water droplets adhering to its surface, thereby reducing the degree of obstruction to heat transfer caused by the accumulated water droplets. Finally, the gas will be discharged outward along the first vent 4. When the conveying pressure of the liquid by the screw conveyor 1014 is greater than the elastic strength of the spiral spring 1115, the valve plate 1110 will move downward, and then the condensed water will be discharged outward along the third liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the second liquid flow hole 118 and the first liquid flow hole 114.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot water circulation device for gas power generation equipment, comprising a vertical heating shell (1), a heating chamber (2) arranged inside the upper half area of ​​the vertical heating shell (1), a No. 1 component mounting hole (3) arranged at the top center of the vertical heating shell (1), a plurality of No. 1 vents (4) arranged around the No. 1 component mounting hole (3), a condensate collection chamber (5) arranged at the bottom of the heating chamber (2), an exhaust passage (6) arranged at the bottom end of the vertical heating shell (1), an air intake passage (7) connected to the circumferential surface of the condensate collection chamber (5), a No. 1 liquid delivery hole (8) arranged inside the exhaust passage (6) and connected to the bottom of the condensate collection chamber (5), and a support leg (9) fixedly installed around the exhaust passage (6), characterized in that: Also includes, A linked heat exchange mechanism (10) is provided inside which is provided a spiral copper tube (107) that can rotate around the axis of the vertical heating shell (1) and can realize gas flow, and a spiral conveying rod (1014) that can rotate and generate a downward driving direction for the surrounding liquid; And a controllable pressure control mechanism (11), which is provided with a valve plate (1110) capable of blocking the bottom end of the first liquid delivery hole (8) and a coil spring (1115) for exerting upward elastic pressure on the valve plate (1110).

2. A hot water circulation device for gas power generation equipment according to claim 1, characterized in that: The linkage heat exchange mechanism (10) comprises an upper hollow disk (101), a lower hollow disk (104) and a hollow connecting block (1010) which are located inside the heating chamber (2) and are capable of rotating. An upper liquid flow chamber (105) and a lower liquid flow chamber (106) are respectively arranged inside the upper hollow disk (101) and the lower hollow disk (104). A plurality of No. 2 air vents (108) which communicate with the upper and lower surfaces of the lower hollow disk (104) are arranged inside the lower hollow disk (104). A No. 1 hollow tube (102) which is an integral structure with the upper hollow disk (101) and passes through the No. 1 component mounting hole (3) is arranged at the center of the upper end surface of the upper hollow disk (101). The tube body of the No. 1 hollow tube (102) is mounted on the No. 1 component mounting hole through a bearing. The first hollow tube (102) is provided with a belt groove (103) on the circumferential surface of the tube body located above the vertical heating shell (1), and the first hollow tube (102) is provided with a third liquid delivery hole (1015) whose top end is open and whose bottom end is connected to the upper liquid flow cavity (105). A plurality of spiral copper tubes (107) in an annular array are installed between the opposite ends of the upper hollow disk (101) and the lower hollow disk (104), and the inner hole of the spiral copper tube (107) is connected to the upper liquid flow cavity (105) and the lower liquid flow cavity (106). The center of the bottom end of the lower hollow disk (104) is provided with a second hollow tube (109) which is an integral structure with the lower hollow disk (104).

3. A hot water circulation device for gas power generation equipment according to claim 2, characterized in that: The body of the second hollow tube (109) is installed at the center hole of the hollow connecting block (1010) through a mechanical sealing structure; the hollow connecting block (1010) is provided with a liquid reserved cavity (1012) located on the periphery of the second hollow tube (109); the interior of the second hollow tube (109) is provided with a second liquid delivery hole (1013) connecting the lower liquid flow cavity (106) and the liquid reserved cavity (1012); the circumferential surface of the hollow connecting block (1010) is provided with a horizontal gas flow channel (1011) penetrating the circumferential surface of the vertical heating shell (1) and connecting the liquid reserved cavity (1012); and the bottom end of the second hollow tube (109) is fixedly provided with a spiral delivery rod (1014) located inside the first liquid delivery hole (8).

4. A hot water circulation device for gas-fired power generation equipment according to claim 3, characterized in that: There is a gap for gas flow between the outer circumferential surface of the upper hollow disk (101) and the inner circumferential surface of the heating chamber (2).

5. A hot water circulation device for gas-fired power generation equipment according to claim 4, characterized in that: When the spiral conveying rod (1014) rotates with the second hollow tube (109), it generates a downward driving direction for the surrounding liquid.

6. A hot water circulation device for gas-fired power generation equipment according to claim 5, characterized in that: The controllable pressure control mechanism (11) comprises a vertical hollow column (111), the top of the vertical hollow column (111) is provided with an upper fixed end (113) which is integrally structured with the vertical hollow column (111) and fixedly mounted on the bottom end of the exhaust passage (6), the interior of the vertical hollow column (111) is provided with a cooling liquid flow cavity (112), the bottom end and edge of the vertical hollow column (111) are respectively provided with a No. 1 liquid flow hole (114) and a longitudinal rod body through hole (115) which are connected to the bottom end of the cooling liquid flow cavity (112), the vertical hollow column (111) is provided with a component stop ring (117) and a valve plate (1110) which are capable of axially moving along the cooling liquid flow cavity (112), and the bottom end surface of the component stop ring (117) is fixedly mounted with a longitudinal telescopic rod (1113) which passes through the longitudinal rod body through hole (115). The vertical hollow column (111) is provided with a high-pressure sealing ring (116) between the rod body of the longitudinal telescopic rod (1113) and the longitudinal rod body through hole (115); a bottom connecting ring (1114) is provided at the bottom end of the longitudinal rod body through hole (115); a No. 2 liquid flow hole (118) is provided at the center of the component limiting ring (117); a No. 3 liquid flow hole (119) connecting the No. 1 liquid delivery hole (8) and the top of the cooling liquid flow cavity (112) is provided at the center of the upper fixed end (113); a helical spring (1115) in a compressed state is provided between the upper surface of the component limiting ring (117) and the lower surface of the valve plate (1110); a plurality of liquid flow grooves (1111) with an inner concave structure are provided on the circumferential surface of the valve plate (1110); and a rubber sealing ring (1112) is embedded in the upper surface of the valve plate (1110).

7. A hot water circulation device for gas-fired power generation equipment according to claim 6, characterized in that: The friction force generated by the high-pressure sealing ring (116) on the rod body of the longitudinal telescopic rod (1113) is sufficient to ensure that the longitudinal telescopic rod (1113) remains stable during operation.

8. A hot water circulation device for gas-fired power generation equipment according to claim 7, characterized in that: The horizontal height of the top of the rubber sealing ring (1112) is higher than the horizontal height of the top of the valve plate (1110), the structural radius of the inner ring of the rubber sealing ring (1112) is larger than the structural radius of the No. 3 liquid flow hole (119), and the structural radius of the outer ring is smaller than the distance between the liquid flow groove (1111) and the axis of the valve plate (1110).

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