Hot water recycling device for gas power generation equipment

Abstract

The invention relates to the technical field of hot water recycling, and discloses a hot water recycling device for gas power generation equipment. A spiral copper pipe capable of rotating around the axis of the vertical heating shell and realizing gas flowing and a spiral conveying rod capable of rotating and generating a downward driving direction for surrounding liquid are arranged in the vertical heating shell; a valve plate capable of blocking the bottom end of the first liquid conveying hole and a spiral spring exerting upward elastic pressure on the valve plate are arranged in the controllable pressure control mechanism. The hot water recycling device for the gas power generation equipment is mounted at the tail part of a combustion exhaust port, and can heat recyclable liquid by using high-temperature tail gas, so that residual heat energy in the tail gas is converted into hot water for supply, and the effective utilization rate of gas heat energy is improved.

Description

Technical Field

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

[0002] The working principle of gas generator sets includes the following steps: 1. Gas supply: Gas generator sets obtain gas from gas supply systems such as natural gas pipelines or gas tanks. These gases are processed by gas filters and pressure regulating valves to ensure the purity and pressure of the gas; 2. Fuel mixing and intake: The gas enters the 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 improve the intake density and combustion efficiency; 3. Combustion process: The combustible mixture is injected into the cylinder and ignited by spark ignition under the action of the ignition system, and burns to produce high-temperature and high-pressure gas. These gases drive the piston to move and convert chemical energy into mechanical energy; 4. In the gas turbine, the outside atmosphere enters the engine through the intake duct and is compressed in the compressor to increase the air flow pressure and temperature. The high-pressure air enters the combustion chamber and mixes with the fuel and burns to generate high-temperature and high-pressure gas. The gas forms high-temperature gas after combustion, and the high-temperature gas is directly discharged, resulting in obvious energy waste. Summary of the invention

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

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot water circulation device for gas-fired power generation equipment, comprising a vertical heating shell, a heating chamber arranged inside the upper half area of ​​the vertical heating shell, a No. 1 component mounting hole arranged at the top center of the vertical heating shell, a plurality of No. 1 air vents arranged around the No. 1 component mounting hole, a condensate collection chamber arranged at the bottom of the heating chamber, an exhaust passage arranged at the bottom of the vertical heating shell, an air intake passage connected to the circumferential surface of the condensate collection chamber, a No. 1 liquid delivery hole arranged inside the exhaust passage and connected to the bottom of the condensate collection chamber, and a support leg fixedly installed on the periphery of the exhaust passage, and also comprising a linkage heat exchange mechanism, inside of which a spiral copper tube capable of rotating around the axis of the vertical heating shell and capable of realizing gas flow and a spiral delivery rod capable of rotating and generating a downward driving direction for the surrounding liquid are arranged; and a controllable pressure control mechanism, inside of which a valve plate capable of blocking the bottom of the No. 1 liquid delivery hole and a spiral spring exerting an upward elastic pressure on the valve plate are arranged.

[0005] Preferably, the linkage heat exchange mechanism comprises an upper hollow disk, a lower hollow disk and a hollow connecting block which are located inside the heating chamber and can rotate, an upper liquid flow cavity and a lower liquid flow cavity are respectively arranged inside the upper hollow disk and the lower hollow disk, a plurality of No. 2 air vents which are connected to the upper and lower surfaces thereof are arranged inside the lower hollow disk, a No. 1 hollow tube which is an integral structure with the upper hollow disk and passes through the No. 1 component mounting hole is arranged at the center of the upper end surface of the upper hollow disk, and the tube body of the No. 1 hollow tube is mounted on the No. 1 component through a bearing Inside the mounting hole, the No. 1 hollow tube is provided with a belt groove on the circumferential surface of the tube body located above the vertical heating shell, and the No. 1 hollow tube is provided with a No. 3 liquid delivery hole whose top end is open and whose bottom end is connected to the upper liquid flow cavity, and a plurality of annular array-type spiral copper tubes are installed between the opposite ends of the upper hollow disk and the lower hollow disk, and the inner holes of the spiral copper tubes are connected to the upper liquid flow cavity and the lower liquid flow cavity, and the bottom center of the lower hollow disk is provided with a No. 2 hollow tube with an integral structure therewith.

[0006] Preferably, the tube body of the No. 2 hollow tube is installed at the center hole of the hollow connecting block through a mechanical sealing structure, the hollow connecting block is provided with a liquid reserved cavity on the periphery of the No. 2 hollow tube, the interior of the No. 2 hollow tube is provided with a No. 2 liquid delivery hole connecting the lower liquid flow cavity and the liquid reserved cavity, the circumferential surface of the hollow connecting block is provided with a horizontal gas flow channel that passes through the circumferential surface of the vertical heating shell and connects the liquid reserved cavity, and the bottom end of the No. 2 hollow tube is fixedly installed with a spiral delivery rod located inside the No. 1 liquid delivery hole.

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

[0008] Preferably, when the spiral conveying rod rotates with the No. 2 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 an integral structure with it and fixedly mounted on the bottom end of the exhaust channel, the interior of the vertical hollow column is provided with a cooling liquid flow cavity, the bottom end and edge portion of the vertical hollow column are respectively provided with a No. 1 liquid flow hole connected to the bottom end of the cooling liquid flow cavity and a longitudinal rod body through-hole, the vertical hollow column is provided with a component limit ring and a valve plate which can move axially along the cooling liquid flow cavity, and the bottom end surface of the component limit ring is fixedly mounted with a A longitudinal telescopic rod, the vertical hollow column is provided with a high-pressure sealing ring between the rod body and the longitudinal rod body perforation of the longitudinal telescopic rod, a bottom connecting ring is provided at the bottom end of the longitudinal rod body perforation, a No. 2 liquid flow hole is provided at the center of the component limiting ring, a No. 3 liquid flow hole connecting the No. 1 liquid delivery hole and the top of the cooling liquid flow cavity is provided at the center of the upper fixed end, a helical spring in a compressed state is provided between the upper surface of the component limiting ring and the lower surface of the valve plate, a plurality of liquid flow grooves with an inwardly concave structure are provided on the circumferential surface of the valve plate, and a rubber sealing ring is embedded in the upper surface of the valve plate.

[0010] Preferably, the friction force formed by the high-pressure sealing ring on the rod body of the longitudinal telescopic rod is sufficient to ensure that the longitudinal telescopic rod remains 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 No. 3 liquid flow hole, and the structural radius of the outer ring is smaller than the distance between the liquid flow groove and the axial centerline of the valve plate.

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

[0013] Installed at the tail end of the combustion exhaust port, it can utilize 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 the gas thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0016] Figure 3 It is a three-dimensional diagram of the linkage heat exchange mechanism in the present invention;

[0017] Figure 4 It is a three-dimensional cross-sectional view of the linkage heat exchange mechanism in the present invention;

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

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

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

[0021] Among them: 1. Vertical heating shell; 2. Heating chamber; 3. No. 1 component installation hole; 4. No. 1 vent; 5. Condensate collection chamber; 6. Exhaust channel; 7. Inlet channel; 8. No. 1 liquid delivery hole; 9. Support leg; 10. Linked heat exchange mechanism; 101. Upper hollow plate; 102. No. 1 hollow tube; 103. Belt groove; 104. Lower hollow plate; 105. Upper liquid flow chamber; 106. Lower liquid flow chamber; 107. Spiral copper tube; 108. No. 2 vent; 109. No. 2 hollow tube; 1010. Hollow connection block; 1011. Horizontal gas flow channel; 1012. Liquid reserved space cavity; 1013, liquid delivery hole No. 2; 1014, spiral delivery rod; 1015, liquid delivery hole No. 3; 11, controllable pressure control mechanism; 111, vertical hollow column; 112, cooling liquid flow cavity; 113, upper fixed end; 114, liquid flow hole No. 1; 115, longitudinal rod body perforation; 116, high-pressure sealing ring; 117, component limiting ring; 118, liquid flow hole No. 2; 119, liquid flow hole No. 3; 1110, valve plate; 1111, liquid flow groove; 1112, rubber sealing ring; 1113, longitudinal telescopic rod; 1114, bottom connecting ring; 1115, spiral spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 and Figure 2A hot water circulation device for gas power generation equipment comprises 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 collecting chamber 5 arranged at the bottom of the heating chamber 2, an exhaust channel 6 arranged at the bottom end of the vertical heating shell 1, an air intake channel 7 connected to the circumferential surface of the condensate collecting chamber 5, a No. 1 liquid delivery hole 8 arranged inside the exhaust channel 6 and connected to the bottom of the condensate collecting chamber 5, and a support leg 9 fixedly installed on the periphery of the exhaust channel 6, the air intake channel 7 is connected to the tail exhaust port of the gas chamber, the horizontal gas flow channel 1011 and the No. 1 hollow tube 102 are connected to a circulation pipeline for providing liquid, and finally a belt groove 103 is linked to a belt installed at the end of a driving motor rotor through a belt.

[0024] In order to achieve the heating of flowing liquid and the directional drive of condensed water, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up a linkage heat exchange mechanism 10, 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 produce a downward driving direction for the surrounding liquid. The high-temperature exhaust gas enters through the air inlet channel 7 and enters the interior of the heating chamber 2. At the same time, the drive motor is turned on, and the belt will drive the No. 1 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, and the liquid flows through the horizontal gas flow channel 1011, the No. 1 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, and the rotating spiral copper tube 107 will cause the water droplets attached to its surface to be thrown out, thereby reducing the degree of obstruction of the accumulated water droplets to heat transfer. Finally, the gas will be discharged outward along the No. 1 vent 4.

[0025] For the specific structure of the linked 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 achieve normal gas flow, it is necessary to make a gap for gas flow between the outer circumference of the upper hollow disk 101 and the inner circumference of the heating chamber 2. The upper hollow disk 101 and the lower hollow disk 104 are respectively provided with an upper liquid flow cavity 105 and a lower liquid flow cavity 106. The lower hollow disk 104 is provided with a plurality of second vents 108 connecting the upper and lower surfaces thereof. The center of the upper end surface of the disk 101 is provided with a No. 1 hollow tube 102 which is an integral structure with the disk 101 and passes through the No. 1 component mounting hole 3. The tube body of the No. 1 hollow tube 102 is installed inside the No. 1 component mounting hole 3 through a bearing. The No. 1 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. The interior of the No. 1 hollow tube 102 is provided with a No. 3 liquid delivery hole 1015 with an open top and a bottom connected to the upper liquid flow cavity 105. The upper hollow disk 101 and the lower hollow disk 104 are arranged between the opposite ends. A plurality of spiral copper tubes 107 in an annular array are installed, and the inner holes of the spiral copper tubes 107 are connected to the upper liquid flow chamber 105 and the lower liquid flow chamber 106. A second hollow tube 109 with an integrated structure is arranged at the bottom center of the lower hollow disk 104. The tube 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 on the periphery of the second hollow tube 109. The interior of the second hollow tube 109 is provided with a cavity 1012 for connecting the lower liquid. The second liquid delivery hole 1013 is connected to the body 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 which passes through the circumferential surface of the vertical heating shell 1 and connects to the liquid reserved cavity 1012, and the bottom end of the No. 2 hollow tube 109 is fixedly installed with a spiral delivery rod 1014 located inside the No. 1 liquid delivery hole 8. In order to realize the timely discharge of condensed water, it is necessary to make the spiral delivery rod 1014 rotate with the No. 2 hollow tube 109 to produce a downward driving direction for the surrounding liquid.

[0026] In order to discharge the condensed water in time 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 provided with a valve plate 1110 that can block the bottom end of the No. 1 liquid delivery hole 8 and a coil spring 1115 that exerts an upward elastic pressure on the valve plate 1110. When the delivery pressure of the spiral delivery rod 1014 on the liquid is greater than the elastic strength of the coil spring 1115, the valve plate 1110 will move downward, and then the condensed water will flow along the No. 3 liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the No. 2 liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the No. 2 liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the No. 3 liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the No. 2 ... The movable hole 118 and the No. 1 liquid flow hole 114 discharge outward, thereby realizing timely discharge of condensed water. Due to the elastic effect of the coil 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, thereby preventing gas leakage. At the same time, by adjusting the distance between the limit ring 117 and the valve plate 1110, the elastic strength of the coil spring 1115 is changed, thereby changing the pressure of the valve plate 1110 when it is opened.

[0027] For the specific structure of the controllable pressure control mechanism 11, please refer to Figure 5 , Figure 6 and Figure 7, comprising a vertical hollow column 111, the top of the vertical hollow column 111 is provided with an upper fixed end 113 which is an integral structure with the upper fixed end 113 and fixedly mounted at 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 the edge of the vertical hollow column 111 are respectively provided with a No. 1 liquid flow hole 114 connected to the bottom end of the cooling liquid flow cavity 112 and a longitudinal rod through hole 115, the vertical hollow column 111 is provided with a liquid flow hole 114 connected to the bottom end of the cooling liquid flow cavity 112 and a longitudinal rod through hole 115, and the vertical hollow column 111 is provided with a liquid flow hole 114 connected to the bottom end of the cooling liquid flow cavity 112. The component stop ring 117 and the valve plate 1110 move axially along the cooling liquid flow chamber 112. The bottom end surface of the component stop ring 117 is fixedly installed with a longitudinal telescopic rod 1113 that passes through the longitudinal rod body through hole 115. The vertical hollow column 111 is installed 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. In order to prevent leakage of liquid and gas, it is necessary to make the friction force formed by the high-pressure sealing ring 116 on the rod body of the longitudinal telescopic rod 1113 sufficient to make The longitudinal telescopic rod 1113 remains stable during operation. A bottom connecting ring 1114 is installed at the bottom end of the longitudinal rod body through hole 115. A No. 2 liquid flow hole 118 is arranged 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 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. The valve plate 1110 is provided with a plurality of springs 1115 in a plurality of positions. The circumferential surface of 10 is provided with a plurality of liquid flow grooves 1111 with an inwardly concave structure, and a rubber sealing ring 1112 is embedded in the upper surface of the valve plate 1110. In order to prevent leakage of liquid and gas, 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, and 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 axial center line of the valve plate 1110.

[0028] When in use, the air inlet channel 7 is connected to the tail exhaust port of the gas chamber, and then the horizontal gas flow channel 1011 and the No. 1 hollow tube 102 are connected to a circulation pipeline for providing liquid. Finally, the belt groove 103 is linked to a belt installed on the end of the driving motor rotor through a belt. When the driving motor is turned on, the belt will drive the No. 1 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, and the liquid flows through the horizontal gas flow channel 1011, the No. 1 hollow tube 102 and the spiral copper tube 107, and the high-temperature gas and the flowing liquid meet at the spiral copper tube 107, forming a A heat exchange phenomenon occurs. At this time, the liquid is heated, and condensed water is formed 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 degree of resistance to heat transfer caused by the accumulated water droplets. Finally, the gas will be discharged outward along the No. 1 vent 4. When the delivery pressure of the spiral delivery rod 1014 on the liquid 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 No. 3 liquid flow hole 119, the gap of the rubber sealing ring 1112, the liquid flow groove 1111, the No. 2 liquid flow hole 118 and the No. 1 liquid flow hole 114.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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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