Structure of regulating heat exchanger for air source heat pump system

Abstract

The present invention belongs to the technical field of energy-saving pumps, and specifically relates to a regulating heat exchanger structure of an air source heat pump system, comprising a barrel body and a heat exchange tube arranged through the inner cavity of the barrel body; a water inlet pipe and a water discharge pipe are respectively connected to the top and bottom of the side wall of the barrel body, and the two ends of the heat exchange tube are respectively a liquid inlet end and a liquid discharge end extending out of the barrel body; it also includes a diverter channel, one end of the diverter channel is connected to the liquid discharge end, and the other end is connected to the water inlet pipe, and the connection point where the diverter channel and the water inlet pipe are connected has a pressure regulating component; under normal circumstances, the pressure at both ends of the diverter channel is greater than the pressure inside the liquid discharge end and the pressure inside the water inlet pipe. In the regulating heat exchanger structure of the air source heat pump system, when the temperature inside the water inlet pipe changes, the heat medium inside the heat exchange tube is diverted, collected or refluxed, thereby adjusting the contact time between the heat medium and the water source inside the barrel body to achieve the stability of the water source temperature.

Description

Technical Field

[0001] The invention belongs to the technical field of energy-saving pumps, and in particular relates to a regulating heat exchanger structure of an air source heat pump system. Background Art

[0002] As an energy-saving device, the core principle of air source heat pump is to transfer heat from low-level air, soil or water sources to high-level through high-level energy drive, thereby realizing the utilization of these low-level thermal energies that cannot be directly utilized, reducing the consumption of traditional energy such as coal, gas, oil and electricity. In buildings, air source heat pumps are particularly suitable. They capture heat energy from outdoor air and exchange heat with the indoor environment through media to achieve indoor heating.

[0003] In the key component of the water heat exchanger, the refrigerant (water source) exchanges heat with the heat medium (such as Freon). The heated water source then flows into the floor heating system to provide warmth for the room, and then flows back to the water heat exchanger for circulation. However, the existing water heat exchanger design faces some challenges: when there is frequent movement of people indoors or doors and windows are frequently opened and closed, the indoor temperature is prone to drastic fluctuations, which in turn affects the water source temperature. When the water source temperature is too high, the heat exchange efficiency between it and the heat medium is reduced, resulting in the heat in the heat medium being difficult to fully utilize; conversely, when the water source temperature is too low, it is difficult for the heat medium to quickly heat it to the ideal temperature, resulting in unstable water temperature. These problems are limitations faced by current technology. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an adjustable heat exchanger structure for an air source heat pump system in view of the shortcomings of the prior art. The present invention adjusts the contact time between the heat medium and the water source inside the barrel body by diverting, collecting or refluxing the heat medium inside the heat exchange tube, thereby achieving the stability of the water source temperature.

[0005] This solution is achieved through the following technical measures: the regulating heat exchanger structure of the air source heat pump system includes a barrel body and a heat exchange pipe arranged through the inner cavity of the barrel body; wherein the upper and lower sides of the barrel body side wall are respectively connected with a water inlet pipe and a drain pipe, and the two ends of the heat exchange pipe are respectively a liquid inlet end and a liquid drain end extending out of the barrel body;

[0006] It also includes a shunt channel, one end of which is connected to the discharge end and the other end is connected to the water inlet pipe, and a pressure regulating component is provided at the connection point between the shunt channel and the water inlet pipe;

[0007] Under normal conditions, the pressure at both ends of the diversion channel is greater than the pressure inside the discharge end and the pressure inside the water inlet pipe, so that the heat medium in the discharge end and the water source in the water inlet pipe cannot enter the diversion channel;

[0008] When the temperature of the water source inside the water inlet pipe changes, the pressure regulating component reduces the pressure at one end of the shunt channel close to the discharge end, so that part of the heat medium in the discharge end is shunted into the shunt channel;

[0009] When the temperature of the water source inside the water inlet pipe changes again, the pressure regulating component controls the pressure of one end of the shunt channel close to the water inlet pipe to be higher than the pressure at the other end of the shunt channel, so that the heat medium in the shunt channel flows back to the discharge end under the action of pressure;

[0010] At least a part of the diversion channel is located in the heat exchange tube, and is used for the heat medium in the collecting tube to pass through during reflux, so that the heat medium in the collecting tube can exchange heat with the water source in the barrel during the reflux process.

[0011] Preferably, the diversion channel includes a collecting pipe having one end connected to the liquid discharge end and the other end connected to the water inlet pipe, and a reflux pipe having one end connected to the collecting pipe and the other end connected to the liquid discharge end after penetrating into the barrel body.

[0012] Preferably, a one-way valve is provided at the connection point between the return pipe and the discharge end, and at the connection point between the collecting pipe and the discharge end; a pressure relief valve is provided at the connection point between the return pipe and the collecting pipe;

[0013] A piston ball is also arranged inside the liquid collecting pipe.

[0014] Preferably, a temperature control component is provided at the water inlet pipe, and the temperature control component is used to drive the pressure regulating component to work when the temperature of the water source inside the water inlet pipe changes.

[0015] Preferably, the pressure regulating component includes a pressure relief piece and a valve, wherein the pressure relief piece includes an insertion rod that slides transversely through the liquid collecting pipe, a portion of the insertion rod located inside the liquid collecting pipe is provided with a recess, and a connecting spring is provided between one end of the insertion rod and the outer wall of the barrel body to elastically connect the two.

[0016] Preferably, the valve includes a fixed box fixedly arranged on the side wall of the liquid collecting pipe, the inner cavity of the fixed box is connected with the inner cavity of the liquid collecting pipe, a valve plate is slidably arranged in the fixed box, a mounting spring is arranged between one end of the valve plate and the inner cavity end of the fixed box to elastically connect the two, and an extension rod is also fixedly arranged at this end of the valve plate, and the extension rod extends out of the fixed box.

[0017] Preferably, the temperature control component comprises a memory spring arranged at the water inlet pipe, the bottom end of the memory spring is connected to a push plate, and the bottom end of the push plate has a vertical end and an inclined end in sequence from top to bottom;

[0018] Under normal conditions, the end of the insertion rod is attached to the side wall of the inclined end, and the end of the extension rod is attached to the side wall of the vertical end.

[0019] Preferably, the memory spring is in a free state at room temperature, in a stretched state at a temperature higher than room temperature, and in a compressed state at a temperature lower than room temperature.

[0020] Preferably, a conical portion is provided at one end of the recess near the inclined end. When the piston ball moves up to the conical portion, the piston ball pushes the insertion rod toward the inclined end through the inclined surface of the conical portion. A friction ring is fixedly provided on the side wall of the collecting pipe. The friction ring is sleeved on the outer ring of the insertion rod and cooperates with the clearance of the insertion rod.

[0021] Preferably, the memory spring is in a free state at room temperature, in a compressed state at a temperature higher than room temperature, and in a stretched state at a temperature lower than room temperature.

[0022] Beneficial effects of the present invention:

[0023] 1. In the adjustable heat exchanger structure of the air source heat pump system, when the temperature inside the water inlet pipe changes, the heat medium inside the heat exchange pipe is shunted, collected or refluxed to adjust the contact time between the heat medium and the water source inside the barrel, thereby achieving stability of the water source temperature;

[0024] 2. In the adjustable heat exchanger structure of the air source heat pump system, when the water source temperature in the water inlet pipe becomes higher, part of the heat medium is automatically collected, so that when the water source temperature becomes lower, the collected heat medium is released, thereby increasing the amount of heat medium flowing in the barrel and improving the efficiency of water temperature rise;

[0025] 3. In the regulating heat exchanger structure of the air source heat pump system, when the water source is first heated up, the piston ball continuously drives the conical part so that the heat medium in the discharge end can repeatedly enter the collecting pipe, so that the heat medium can exchange heat with the water source in the barrel body through the return pipe for a long time, thereby accelerating the heat exchange efficiency of the water source inside the barrel body under the joint action of the heat exchange pipe and the return pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the barrel in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the liquid collecting pipe in the present invention;

[0029] Figure 4 The structure of the pressure regulating component in the present invention is shown in FIG. Figure 1 ;

[0030] Figure 5 It is a structural schematic diagram of the valve in the present invention;

[0031] Figure 6 The structure of the pressure regulating component in the present invention is shown in FIG. Figure 2 ;

[0032] Figure 7 It is a structural schematic diagram of the flow guide pipe in the present invention.

[0033] Numbers in the figure:

[0034] 100, barrel body; 101, water inlet pipe; 102, drain pipe; 110, heat exchange tube; 111, liquid inlet end; 112, liquid discharge end;

[0035] 120, liquid collecting pipe; 121, return pipe; 122, piston ball; 123, one-way valve; 124, pressure relief valve;

[0036] 130, pressure regulating component; 131, plug rod; 132, recess; 133, connecting spring; 134, tapered portion; 135, friction ring;

[0037] 140, temperature control component; 141, liquid storage cylinder; 142, memory spring; 143, push plate; 144, inclined end; 145, vertical end;

[0038] 150. Valve; 151. Fixing box; 152. Valve plate; 153. Mounting spring; 154. Extension rod; 160. Flow guide tube. DETAILED DESCRIPTION

[0039] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0040] The structure of the regulating heat exchanger of the air source heat pump system, such as Figure 1-Figure 2 As shown, it includes a barrel body 100 and a heat exchange tube 110 that runs through the inner cavity of the barrel body 100; wherein, the upper and lower sides of the barrel body 100 are connected with a water inlet pipe 101 and a drain pipe 102 respectively, and the water source in the floor heating is pressurized by a water pump so that the water source enters the barrel body 100 through the water inlet pipe 101, and then flows back to the floor heating through the drain pipe 102; the two ends of the heat exchange tube 110 are respectively connected to the air source heat pump, and the heat medium flows out of the air source heat pump, enters the heat exchange tube 110 through the liquid inlet end 111, and then flows back to the air source heat pump through the liquid discharge end 112. In this process, since the heat exchange tube 110 is in contact with the water source in the barrel body 100, the heat in the heat medium in the heat exchange tube 110 will be transferred to the water source in the barrel body 100 through the heat exchange tube 110, so that the water source flowing out through the drain pipe 102 becomes hot water.

[0041] To avoid unstable heat exchange between the heat medium and the water source inside the barrel 100, Figure 2As shown: the heat exchanger structure also includes a shunt channel, one end of the shunt channel is connected to the discharge end 112, and the other end is connected to the water inlet pipe 101. The connection between the shunt channel and the water inlet pipe 101 is provided with a pressure regulating component 130. Under normal conditions, the pressure at both ends of the shunt channel is greater than the pressure inside the discharge end 112 and the pressure inside the water inlet pipe 101, so that the heat medium in the discharge end 112 and the water source in the water inlet pipe 101 cannot enter the shunt channel; when the temperature of the water source in the water inlet pipe 101 changes, the pressure regulating component 130 adjusts the shunt channel near the discharge end 112. The pressure is reduced so that part of the heat medium in the discharge end 112 is diverted to the diverter channel; when the temperature of the water source inside the water inlet pipe 101 changes again, the pressure regulating component 130 controls the pressure of the diverter channel close to one end of the water inlet pipe 101 to be higher than the pressure at the other end of the diverter channel, so that the heat medium in the diverter channel flows back to the discharge end 112 under the action of pressure; and at least a part of the diverter channel is located in the heat exchange tube 110, which is used for the heat medium in the collecting pipe 120 to pass through when refluxing, so that the heat medium in the collecting pipe 120 can exchange heat with the water source in the barrel body 100 during the reflux process.

[0042] The diversion channel includes a liquid collecting pipe 120 having one end connected to the liquid discharge end 112 and the other end connected to the water inlet pipe 101, and a return pipe 121 having one end connected to the liquid collecting pipe 120 and the other end connected to the liquid discharge end 112 after penetrating into the barrel body 100. In addition, a one-way valve 123 is provided at the connection between the return pipe 121 and the liquid discharge end 112, and at the connection between the liquid collecting pipe 120 and the liquid discharge end 112; a pressure relief valve 124 is provided at the connection between the return pipe 121 and the liquid collecting pipe 120; and a piston ball 122 is also provided inside the liquid collecting pipe 120.

[0043] That is, when the temperature inside the water inlet pipe 101 changes, the heat medium inside the heat exchange tube 110 is collected or refluxed to adjust the contact time between the heat medium and the water source inside the barrel 100, thereby achieving stability of the water source temperature.

[0044] At the same time, in order to sense the water source temperature inside the water inlet pipe 101, a temperature control component 140 is provided at the water inlet pipe 101. The temperature control component 140 is used to drive the pressure regulating component 130 to work when the water source temperature inside the water inlet pipe 101 changes.

[0045] like Figure 4 As shown, the pressure regulating component 130 includes a pressure relief component and a valve 150, wherein the pressure relief component includes an insertion rod 131 that slides horizontally through the liquid collecting pipe 120, the part of the insertion rod 131 located inside the liquid collecting pipe 120 is provided with a recess 132, and a connecting spring 133 is provided between one end of the insertion rod 131 and the outer wall of the barrel body 100 to elastically connect the two.

[0046] like Figure 5 As shown, the valve 150 includes a fixed box 151 fixedly arranged on the side wall of the collecting pipe 120, the inner cavity of the fixed box 151 is connected to the inner cavity of the collecting pipe 120, a valve plate 152 is slidably arranged in the fixed box 151, and a mounting spring 153 is arranged between one end of the valve plate 152 and the inner cavity end of the fixed box 151 to elastically connect the two, and an extension rod 154 is also fixedly arranged at this end of the valve plate 152, and the extension rod 154 extends out of the fixed box 151.

[0047] Figure 4 The specific structure of the temperature control component 140 is also shown. As shown in the figure, the temperature control component 140 includes a memory spring 142 arranged at the water inlet pipe 101. The bottom end of the memory spring 142 is connected to a push plate 143. The bottom end of the push plate 143 has a vertical end 145 and an inclined end 144 from top to bottom. Under normal conditions, the end of the insertion rod 131 is attached to the side wall of the inclined end 144, and the end of the extension rod 154 is attached to the side wall of the vertical end 145. In order to improve the efficiency of the memory spring 142 in sensing the temperature of the water source inside the water inlet pipe 101, the bottom of the water inlet pipe 101 is connected to a liquid storage cylinder 141, the memory spring 142 is arranged inside the liquid storage cylinder 141, the top end of the memory spring 142 is fixedly arranged on the side wall of the liquid storage cylinder 141, and the push plate 143 slides through the bottom of the liquid storage cylinder 141.

[0048] Meanwhile, the memory spring 142 is in a free state at room temperature (25° C.), in a stretched state at a temperature higher than room temperature, and in a compressed state at a temperature lower than room temperature.

[0049] Combination Figure 3 As shown, when the heat medium flows back through the discharge end 112, since the inside of the collecting pipe 120 is in a sealed state, the gas inside the collecting pipe 120 cannot be discharged to the outside, so the heat medium at the discharge end 112 cannot flow into the collecting pipe 120 through the one-way valve 123. At the same time, when the water source inside the water inlet pipe 101 is at room temperature, the memory spring 142 will not be deformed;

[0050] When the water source inside the water inlet pipe 101 is at a high temperature (>25°C), part of the water source inside the water inlet pipe 101 enters the liquid storage cylinder 141, so that the memory spring 142 is heated and becomes elongated. At this time, the memory spring 142 extends downward to drive the push plate 143 to move downward. The push plate 143 moves downward and pushes the insertion rod 131 through the inclined end 144. The insertion rod 131 is displaced by force and drives the connecting spring 133 to compress. When the recess 132 moves to the collecting pipe 12 0 outside, a gap is generated between the collecting pipe 120 and the recess 132. At this time, the air pressure near the discharge end 112 of the collecting pipe 120 becomes low, and part of the heat medium in the discharge end 112 enters the collecting pipe 120 through the one-way valve 123 and pushes the piston ball 122 to move. When the piston ball 122 is pushed to the bottom of the recess 132, the piston ball 122 is blocked by the recess 132. At this time, the heat medium in the collecting pipe 120 cannot continue to enter the collecting pipe 120.

[0051] When the water source inside the water inlet pipe 101 is at a low temperature (<25°C), the memory spring 142 is cooled and becomes compressed. At this time, the memory spring 142 drives the push plate 143 to move upward, and the push plate 143 drives the vertical end 145 and the inclined end 144 to move upward. The inclined end 144 moves upward and disengages from the insertion rod 131. At this time, the recess 132 is reset by the elasticity of the connecting spring 133; when the inclined end 144 moves up to the front of the extension rod 154, the installation spring 153 pulls the valve plate 152 to move through its own elasticity, so that the valve plate 152 opens the liquid collecting pipe 120. At this time, the water source on the inner wall of the water inlet pipe 101 is diverted to the liquid collecting pipe 120. Under the pressure of the water source, the water source pushes the piston ball 122 to move down and reset. The piston ball 122 resets to squeeze the heat medium between the liquid collecting pipe 120 and the liquid discharge end 112, forcing the pressure of this part to increase, so that the pressure relief valve 124 is opened. At this time, the heat medium in the liquid collecting pipe 120 enters the return pipe 121, and then flows into the liquid discharge end 112 through one end of the return pipe 121. When the heat medium flows in the return pipe 121, the heat medium exchanges heat with the water source inside the barrel body 100 through the return pipe 121, so that the water source heat exchange pipe 110 and the return pipe 121 inside the barrel body 100 are heated at the same time, thereby improving the heating efficiency of the water source inside the barrel body 100 at this time.

[0052] It can be seen that when the water source temperature in the water inlet pipe 101 becomes higher, part of the heat medium is automatically collected, so that when the water source temperature becomes lower, the collected heat medium is released, thereby increasing the amount of heat medium flowing in the barrel 100 and improving the efficiency of water temperature rise.

[0053] Moreover, Figure 6As shown, in another embodiment, the memory spring 142 is in a free state at room temperature, in a compressed state at a temperature higher than room temperature, and in a stretched state at a temperature lower than room temperature. A conical portion 134 is provided at one end of the depression 132 close to the inclined end 144. When the piston ball 122 moves up to the conical portion 134, the piston ball 122 pushes the insertion rod 131 toward the inclined end 144 through the inclined surface of the conical portion 134. A friction ring 135 is fixedly provided on the side wall of the liquid collecting pipe 120. The friction ring 135 is sleeved on the outer ring of the insertion rod 131 and is in clearance fit with the insertion rod 131.

[0054] When the water source inside the water inlet pipe 101 is at a low temperature, the memory spring 142 is cooled and becomes elongated. At this time, the memory spring 142 extends downward to drive the push plate 143 to move downward. The push plate 143 moves downward and pushes the insertion rod 131 through the inclined end 144. The insertion rod 131 is displaced by force and drives the connecting spring 133 to be compressed. When the recess 132 moves to the outside of the liquid collecting pipe 120, a gap is generated between the liquid collecting pipe 120 and the recess 132. At this time, the air pressure near the discharge end 112 of the liquid collecting pipe 120 becomes low, and part of the heat medium in the discharge end 112 enters the liquid collecting pipe 120 through the one-way valve 123 and pushes the piston ball 122 to move.

[0055] When the piston ball 122 is pushed to the bottom of the recess 132, the thrust exerted by the piston ball 122 on the inclined surface of the conical portion 134 is greater than the elastic force of the memory spring 142. The piston ball 122 moves the insertion rod 131 toward the inclined end 144 through the inclined surface of the conical portion 134, so that the insertion rod 131 pushes the inclined end 144 upward. When the inclined end 144 moves up to the front of the extension rod 154, the installation spring 153 pulls the valve plate 152 to move through its own elasticity, so that the valve plate 152 opens the liquid collecting pipe 120. At this time, the water source on the inner wall of the water inlet pipe 101 is diverted to the collecting pipe 120. Under the pressure of the water source, the water source pushes the piston ball 122 to move down and reset. The piston ball 122 resets to squeeze the heat medium between the collecting pipe 120 and the discharge end 112, forcing the pressure in this part to increase, thereby opening the pressure relief valve 124. At this time, the heat medium in the collecting pipe 120 enters the return pipe 121, and then flows into the discharge end 112 through one end of the return pipe 121.

[0056] When the piston ball 122 moves downward and disengages from the conical portion 134, the memory spring 142 elastically drives the inclined end 144 downward, and the inclined end 144 pushes the plug rod 131 to move toward the connecting spring 133. Since there is friction between the plug rod 131 and the friction ring 135, the plug rod 131 can only be reset slowly at this time, thereby increasing sufficient time for the flow of the heat medium in the liquid collecting pipe 120; when the depression 132 moves out of the liquid collecting pipe 120 again, the liquid in the discharge end 112 enters the liquid collecting pipe 120 again, and pushes the piston ball 122 to the conical portion 134 again. This reciprocating cycle is repeated to achieve rapid heating of the water source. Only when the water source in the water inlet pipe 101 heats up, the memory spring 142 will be compressed to drive the push plate 143 to move upward, so that the inclined end 144 is separated from the plug rod 131, and the plug rod 131 will not move toward the connecting spring 133 at this time.

[0057] It can be seen that when the water source is first heated up, the piston ball 122 continuously drives the conical portion 134, so that the heat medium in the discharge end 112 can repeatedly enter the collecting pipe 120, so that the heat medium can exchange heat with the water source in the barrel body 100 through the return pipe 121 for a long time, thereby accelerating the heat exchange efficiency of the water source inside the barrel body 100 under the joint action of the heat exchange pipe 110 and the return pipe 121.

[0058] In addition, when the above steps are circulated, the water source in the liquid collecting pipe 120 will be discharged through the gap between the liquid collecting pipe 120 and the depression 132. For this purpose, a flow guide pipe 160 is fixedly provided on the side wall of the liquid collecting pipe 120. One end of the flow guide pipe 160 is connected to the gap between the liquid collecting pipe 120 and the depression 132, and the other end is connected to the drain pipe 102. A one-way drain valve is provided inside the flow guide pipe 160. In this way, when the water source is discharged through the gap between the liquid collecting pipe 120 and the depression 132, it will enter the flow guide pipe 160, and then be discharged into the drain pipe 102 through the one-way drain valve, thereby avoiding the phenomenon of water source waste.

[0059] Technical features not described in the present invention can be implemented by existing technologies and will not be described in detail here. The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by ordinary technicians in the field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A regulating heat exchanger structure of an air source heat pump system, comprising a barrel (100) and a heat exchange pipe (110) arranged to penetrate the inner cavity of the barrel (100); wherein: The upper and lower sides of the barrel body (100) are respectively connected with a water inlet pipe (101) and a water discharge pipe (102); the two ends of the heat exchange tube (110) are respectively a liquid inlet end (111) and a liquid discharge end (112) extending out of the barrel body (100); the characteristics are: It also includes a shunt channel, one end of which is connected to the liquid discharge end (112) and the other end of which is connected to the water inlet pipe (101), and a pressure regulating component (130) is provided at the connection point between the shunt channel and the water inlet pipe (101); Under normal conditions, the pressure at both ends of the diversion channel is greater than the pressure inside the discharge end (112) and the pressure inside the water inlet pipe (101), so that the heat medium in the discharge end (112) and the water source in the water inlet pipe (101) cannot enter the diversion channel; When the temperature of the water source inside the water inlet pipe (101) changes, the pressure regulating component (130) reduces the pressure at one end of the shunt channel close to the liquid discharge end (112), so that part of the heat medium in the liquid discharge end (112) is shunted into the shunt channel; When the temperature of the water source inside the water inlet pipe (101) changes again, the pressure regulating component (130) controls the pressure at one end of the shunt channel close to the water inlet pipe (101) to be higher than the pressure at the other end of the shunt channel, so that the heat medium in the shunt channel flows back to the discharge end (112) under the action of pressure; At least a portion of the diversion channel is located in the heat exchange tube (110) and is used for allowing the heat medium in the collecting tube (120) to pass through during reflux, so that the heat medium in the collecting tube (120) can exchange heat with the water source in the barrel (100) during the reflux process.

2. The regulating heat exchanger structure of the air source heat pump system according to claim 1, characterized in that: The diversion channel comprises a liquid collecting pipe (120) having one end connected to the liquid discharge end (112) and the other end connected to the water inlet pipe (101), and a return pipe (121) having one end connected to the liquid collecting pipe (120) and the other end penetrating into the barrel body (100) and connected to the liquid discharge end (112).

3. The regulating heat exchanger structure of the air source heat pump system according to claim 2, characterized in that: A one-way valve (123) is provided at the connection point between the return pipe (121) and the liquid discharge end (112), and at the connection point between the liquid collecting pipe (120) and the liquid discharge end (112); a pressure relief valve (124) is provided at the connection point between the return pipe (121) and the liquid collecting pipe (120); A piston ball (122) is also arranged inside the liquid collecting pipe (120).

4. The regulating heat exchanger structure of the air source heat pump system according to claim 3 is characterized in that: The water inlet pipe (101) is provided with a temperature control component (140), and the temperature control component (140) is used to drive the pressure regulating component (130) to work when the temperature of the water source inside the water inlet pipe (101) changes.

5. The regulating heat exchanger structure of the air source heat pump system according to claim 4, characterized in that: The pressure regulating component (130) includes a pressure relief component and a valve (150), wherein the pressure relief component includes an insertion rod (131) that slides and laterally penetrates the liquid collecting pipe (120), a portion of the insertion rod (131) located inside the liquid collecting pipe (120) is provided with a recess (132), and a connecting spring (133) is provided between one end of the insertion rod (131) and the outer wall of the barrel body (100) to elastically connect the two.

6. The regulating heat exchanger structure of the air source heat pump system according to claim 5, characterized in that: The valve (150) comprises a fixed box (151) fixedly arranged on the side wall of the liquid collecting pipe (120); the inner cavity of the fixed box (151) is connected to the inner cavity of the liquid collecting pipe (120); a valve plate (152) is slidably arranged in the fixed box (151); a mounting spring (153) is arranged between one end of the valve plate (152) and the inner cavity end of the fixed box (151) to elastically connect the two; an extension rod (154) is also fixedly arranged at the end of the valve plate (152); the extension rod (154) extends out of the fixed box (151).

7. The regulating heat exchanger structure of the air source heat pump system according to claim 6, characterized in that: The temperature control component (140) comprises a memory spring (142) arranged at the water inlet pipe (101), the bottom end of the memory spring (142) is connected to a push plate (143), and the bottom end of the push plate (143) has a vertical end (145) and an inclined end (144) in sequence from top to bottom; Under normal conditions, the end of the insertion rod (131) is in contact with the side wall of the inclined end (144), and the end of the extension rod (154) is in contact with the side wall of the vertical end (145).

8. The regulating heat exchanger structure of the air source heat pump system according to claim 7, characterized in that: The memory spring (142) is in a free state at room temperature, in a stretched state at a temperature higher than room temperature, and in a compressed state at a temperature lower than room temperature.

9. The regulating heat exchanger structure of the air source heat pump system according to claim 7, characterized in that: A conical portion (134) is provided at one end of the recess (132) close to the inclined end (144). When the piston ball (122) moves upward to the conical portion (134), the piston ball (122) pushes the insertion rod (131) toward the inclined end (144) via the inclined surface of the conical portion (134). A friction ring (135) is fixedly provided on the side wall of the liquid collecting pipe (120). The friction ring (135) is sleeved on the outer ring of the insertion rod (131) and is clearance-matched with the insertion rod (131).

10. The regulating heat exchanger structure of the air source heat pump system according to claim 9, characterized in that: The memory spring (142) is in a free state at room temperature, in a compressed state at a temperature higher than room temperature, and in a stretched state at a temperature lower than room temperature.

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