Energy-saving gas heat pump

Abstract

The invention belongs to the technical field of refrigeration and heat pumps, and particularly relates to an energy-saving gas heat pump which comprises a shell, a working cavity is formed in the shell, and a compressor, a condenser, a liquid storage tank and an evaporator are sequentially installed in the working cavity from top to bottom; a first conveying pipe is communicated between the compressor and the condenser, a first conveying pipe is communicated between the condenser and the liquid storage tank, a second conveying pipe is communicated between the liquid storage tank and the evaporator, and an expansion valve is installed on the second conveying pipe. And a refrigeration pipeline is fixedly connected in the evaporator. By arranging the adjusting mechanism, in the using process, the refrigerating effect of the gas heat pump can be adjusted in real time according to the temperature of the external environment, the heat exchange process is accelerated when the temperature of the external environment is high, and it is ensured that heat in the external environment can be taken away or absorbed in time; and when the temperature of the external environment is low, the frosting phenomenon caused by too much refrigerant and too high flow speed of the refrigeration pipeline is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration and heat pumps, and in particular relates to an energy-saving gas heat pump. Background Art

[0002] A gas heat pump is a heat pump device that uses a gas engine as a power source to drive the compressor. It can achieve both cooling and heating functions, reducing dependence on electricity to a certain extent. During the use of a gas heat pump, natural gas, biogas and other fuels are used as fuel to drive the engine, and the engine drives the compressor to work, realizing the circulation of refrigerant in the system. Among them, the refrigerant absorbs the heat from the low-temperature environment in the evaporator and evaporates into a gaseous state. After being compressed by the compressor, it becomes a high-temperature and high-pressure gas, and then releases heat to the heating object in the condenser, condenses into a liquid, and finally returns to the evaporator after reducing the pressure through the throttling device. This cycle repeats to achieve heat transfer.

[0003] However, the existing gas heat pump technology still has many shortcomings in practical applications, which seriously restrict its further development and promotion, as shown below:

[0004] 1. The cooling effect is difficult to adjust in real time with the outside temperature

[0005] Most existing gas heat pumps use a fixed cooling mode, which has certain limitations in adjusting the cooling effect in real time with the outside temperature. When the outside temperature is high, the cooling capacity is insufficient, and the heat generated indoors or during the process cannot be removed in a timely and effective manner, resulting in excessively high indoor temperatures or process parameters that cannot meet the requirements. For example, during the high temperature period in summer, the refrigeration system of traditional gas heat pumps cannot effectively cope with the indoor heat load, making the indoor environment stuffy and uncomfortable; on the contrary, when the outside temperature is low, the refrigeration system still operates at a higher power, which not only causes energy waste, but may also cause problems such as frost on the refrigeration pipes. For example, in spring and autumn, when the temperature difference between morning and evening is large, traditional gas heat pumps cannot automatically adjust the cooling capacity, which easily causes the indoor temperature to be too low. At the same time, the refrigeration pipes are frosted due to excessive refrigerant and too fast flow rate, affecting the normal operation and service life of the system.

[0006] 2. Heat exchange efficiency is greatly affected by the environment

[0007] Under different external temperature conditions, the heat exchange efficiency of gas heat pumps fluctuates greatly. In high temperature environments, maintaining the original air flow rate will lead to low heat exchange efficiency between air and refrigerant, resulting in a significant reduction in the cooling effect; in low temperature environments, maintaining the original air flow rate will cause excessive moisture to condense on the cooling surface, causing frost on the refrigeration pipes, seriously hindering the heat exchange process and reducing the system's cooling performance.

[0008] In summary, the existing gas heat pumps have obvious deficiencies in adjusting the refrigeration effect and coping with different external temperature environments. There is an urgent need for a new energy-saving gas heat pump that can adjust the refrigeration effect and heat exchange efficiency in real time according to the external ambient temperature. Summary of the invention

[0009] The purpose of the present invention is to provide an energy-saving gas heat pump that can adjust the refrigeration effect in real time according to the external ambient temperature in response to the problems raised in the above background technology.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] An energy-saving gas heat pump, comprising:

[0012] A shell, wherein a working chamber is provided inside the shell, and a compressor, a condenser, a liquid storage tank and an evaporator are installed in the working chamber in sequence from top to bottom;

[0013] A first delivery pipe is connected between the compressor and the condenser, and between the condenser and the liquid storage tank. A second delivery pipe is connected between the liquid storage tank and the evaporator, and an expansion valve is installed on the second delivery pipe.

[0014] A refrigeration pipe is fixedly connected in the evaporator, the upper end of the refrigeration pipe is connected to the second delivery pipe, and the lower end is connected to the compressor. The evaporator is filled with hot water. Water-isolating membranes are fixedly connected through both side walls of the evaporator. An air intake pipe and an exhaust pipe are fixedly connected to both side walls of the evaporator. The air intake pipe extends outside the shell. A blowing chamber connected to the exhaust pipe is provided on one side of the shell away from the air intake pipe, and the blowing chamber is connected to the outside.

[0015] A control box is provided inside the working chamber, and the refrigeration pipeline and the second delivery pipe are connected through the control box. A regulating mechanism is provided on one side wall of the control box for adaptively regulating the flow rate of the refrigerant according to the temperature of the external environment;

[0016] A blower mechanism is provided inside the blower cavity, and the blower mechanism is controlled by an adjustment mechanism;

[0017] It also includes a gas engine for providing power for the operation of the compressor. The gas is transported to the gas engine through a gas transmission pipe and drives the compressor to work after being processed.

[0018] Preferably, the adjustment mechanism includes an adjustment plate that penetrates and is slidably connected to the side wall of the control box, the adjustment plate and the control box are air-tightly connected, an adjustment box is fixedly connected to the outer wall of one side of the shell, a piston block is air-tightly slidably connected to the inside of the adjustment box, a connecting rod is fixedly connected between the piston block and the adjustment plate, a heat-conducting area is provided on the side of the adjustment box close to the shell, and the part of the adjustment box except the heat-conducting area is an insulating area.

[0019] Preferably, the blowing mechanism includes a motor fixedly connected to the inside of the shell, a driving rod is fixedly connected to the output end of the motor, a transmission rod is rotatably connected to the blowing chamber through a mounting plate, a bevel gear set is provided between the transmission rod and the driving rod, axial flow fan blades are fixedly connected to the transmission rod, a varistor is fixedly connected to the inner wall of the regulating box, a first spring is provided between the side of the piston block away from the connecting rod and the varistor, and the motor is connected in series with the power supply device through the varistor.

[0020] Preferably, a suction mechanism controlled by a blowing mechanism is further provided in the shell, the suction mechanism comprising a heating chamber opened in the shell, a piston plate being airtightly and slidably connected in the heating chamber, a heat discharge pipe being fixedly connected on the outer wall of the condenser, the heat discharge pipe extending to a position below the piston plate in the heating chamber, a water inlet pipe and a water outlet pipe being provided at a position below the piston plate in the heating chamber, a mounting block being fixedly connected to an outer wall on one side of the shell, a lifting rod being slidably connected through the mounting block, a U-shaped rod being fixedly connected between the lifting rod and the piston plate, a strip limit frame being fixedly connected to the bottom end of the lifting rod, an extension rod being fixedly connected to the end of the transmission rod away from the bevel gear group, a limiting column being rotatably connected to the extension rod, and the limiting column being slidably connected to the inner wall of the strip limit frame.

[0021] Preferably, a stirring mechanism controlled by a piston plate is provided inside the heating chamber, the stirring mechanism includes a threaded rod rotatably connected to the top wall of the heating chamber, the piston plate is threadedly connected to the threaded rod, and the friction coefficient between the threaded rod and the piston plate is smaller than the tangent value of the thread helix angle, the bottom end of the threaded rod is coaxially fixedly connected with a stirring rod, and a plurality of stirring plates are distributed on the stirring rod in a linear array.

[0022] Preferably, the evaporator is provided with a spoiler mechanism controlled by a limiting position column, the spoiler mechanism includes two spoiler plates arranged inside the evaporator, each of the spoiler plates is fixedly connected with a transmission plate, each of the transmission plates extends outside the shell and is fixedly connected with a moving plate, a second spring is provided on the outer wall of each moving plate on the side corresponding to the shell, positions on both sides of the limiting column in the strip limiting frame are slidably connected with moving blocks in the horizontal direction, each of the moving blocks is fixedly connected with a push rod, each of the push rods passes through the corresponding side of the strip limiting frame and is fixedly connected with a resist block, each of the resist blocks is in contact with the moving plate at the corresponding position, and a third spring is provided between each of the moving blocks and the inner wall of the strip limiting frame.

[0023] Compared with existing technologies, the advantages of this energy-saving gas heat pump are:

[0024] 1. The present invention is provided with an adjustment mechanism. During use, the refrigeration effect of the gas heat pump can be adjusted in real time according to the temperature of the external environment. When the temperature of the external environment is high, the air temperature inside the adjustment box is made higher through the heat conduction area, thereby increasing the air pressure in the space close to one side of the shell in the adjustment box, so that there is an air pressure difference on both sides of the piston block, driving the adjustment plate to move in the control box, increasing the opening and closing degree of the adjustment plate to the control box, increasing the flow rate of the refrigerant when entering the refrigeration pipeline, and increasing the flow rate of the refrigerant in the refrigeration pipeline, ensuring that the heat in the external environment can be taken away or absorbed in time, thereby improving the refrigeration effect on the outside. When the temperature of the external environment is low, the opening and closing degree of the adjustment plate to the control box is reduced, and the flow rate of the refrigerant when entering the refrigeration pipeline is reduced, so that the flow rate of the refrigerant in the refrigeration pipeline is reduced, thereby reducing the refrigeration effect on the outside, avoiding frosting of the refrigeration pipeline due to excessive refrigerant and too fast a flow rate, and saving energy at the same time.

[0025] 2. The present invention provides a blower mechanism. When the external temperature changes and causes the position of the piston block in the adjustment box to change, the compression degree of the first spring by the piston block will change, which will further cause the resistance value of the varistor to change. When the external temperature is high, the rotation speed of the transmission rod and the axial flow fan blades driven by the motor will increase, so that more air will flow through the evaporator, which can effectively improve the heat exchange efficiency between the air and the refrigerant and ensure the cooling effect. When the external temperature is low, the rotation speed of the axial flow fan blades driven by the motor will decrease, and the wind speed will be appropriately reduced to avoid excessive moisture condensing on the cooling surface, thereby reducing the risk of frost on the refrigeration pipe.

[0026] 3. The present invention sets a suction mechanism. During the rotation of the transmission rod, the extension rod and the limit column can drive the strip limit frame to perform reciprocating vertical displacement, drive the piston plate to perform reciprocating vertical displacement in the heating chamber, and perform suction work when the refrigerant releases heat to heat water, thereby increasing the amount of heated hot water, avoiding overheating of the hot water and ensuring full utilization of the heat.

[0027] 4. The present invention provides a stirring mechanism, which drives the threaded rod to rotate back and forth during the reciprocating vertical displacement of the piston plate in the heating chamber, and further drives the stirring rod and multiple groups of stirring plates to stir the water in the heating chamber, so that when the refrigerant releases heat to heat the water, the heat can fully contact the water, thereby improving the heating effect on the water and further improving the utilization rate of the heat.

[0028] 5. The present invention sets a spoiler mechanism. When the limit column is driven by the transmission rod to perform circular motion, the position of the limit column in the adjustment limit frame changes continuously, so that the limit column intermittently pushes the moving blocks on both sides to move, and further pushes the moving plates on both sides intermittently away from the shell through the push rod and the stop block, so that the two spoiler plates in the evaporator are displaced intermittently, pushing and spoiling the hot water in the evaporator, thereby improving the cooling effect of the hot water on the outside air when the air flows through the inside of the evaporator.

[0029] 6. In the present invention, the transmission rod can drive the suction mechanism to work synchronously during the rotation process. During the operation of the suction mechanism, the reciprocating vertical displacement of the piston plate will drive the stirring mechanism to work synchronously, and the circular motion of the limit column will drive the disturbance mechanism to work synchronously. There is no need to set up an additional driving source. Only one motor is needed to realize the pumping in and out of the heating water, the stirring treatment of the heating water and the disturbance treatment of the heated water, thereby improving the utilization rate of the gas heat pump for heat and the cooling effect on the outside world. The overall linkage of the device is strong, and the purpose of energy saving and efficiency improvement is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0032] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0033] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0034] Figure 5 It is a schematic cross-sectional structure diagram of the evaporator in the present invention;

[0035] Figure 6 It is a schematic diagram of the local structure of the spoiler mechanism in the present invention;

[0036] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0037] In the figure: 1, shell; 11, working chamber; 12, compressor; 13, condenser; 14, liquid storage tank; 15, evaporator; 2, first delivery pipe; 21, second delivery pipe; 22, expansion valve; 3, refrigeration pipeline; 31, water-proof membrane; 32, air intake pipeline; 33, exhaust pipeline; 34, blowing chamber; 4, control box; 5, adjustment mechanism; 51, adjustment plate; 52, adjustment box; 53, piston block; 54, connecting rod; 55, heat conduction area; 56, heat insulation area; 6, blowing mechanism; 61, motor; 62, drive rod; 63, transmission rod; 64, bevel gear set; 6 5. Axial flow fan blades; 66. Varistor; 67. First spring; 7. Suction mechanism; 71. Heating chamber; 72. Piston plate; 73. Heat discharge pipe; 74. Water inlet pipe; 75. Water outlet pipe; 76. Mounting block; 77. Lifting rod; 78. U-shaped rod; 79. Strip limit frame; 710. Extension rod; 711. Limit column; 8. Stirring mechanism; 81. Threaded rod; 82. Stirring rod; 9. Spoiler mechanism; 91. Spoiler; 92. Transmission plate; 93. Moving plate; 94. Second spring; 95. Moving block; 96. Push rod; 97. Stop block; 98. Third spring. DETAILED DESCRIPTION

[0038] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0039] Example: Refer to Figures 1 to 7 , an energy-saving gas heat pump, comprising:

[0040] A shell 1, wherein a working chamber 11 is provided inside the shell 1, and a compressor 12, a condenser 13, a liquid storage tank 14 and an evaporator 15 are installed in the working chamber 11 in order from top to bottom;

[0041] A first delivery pipe 2 is connected between the compressor 12 and the condenser 13, and between the condenser 13 and the liquid storage tank 14. A second delivery pipe 21 is connected between the liquid storage tank 14 and the evaporator 15, and an expansion valve 22 is installed on the second delivery pipe 21.

[0042] A refrigeration pipe 3 is fixedly connected in the evaporator 15, the upper end of the refrigeration pipe 3 is connected to the second delivery pipe 21, and the lower end is connected to the compressor 12. The evaporator 15 is filled with hot water. Water-isolating membranes 31 are fixedly connected to both side walls of the evaporator 15. An air intake pipe 32 and an exhaust pipe 33 are fixedly connected to both side walls of the evaporator 15. The air intake pipe 32 extends to the outside of the shell 1. A blowing chamber 34 connected to the exhaust pipe 33 is opened on one side of the shell 1 away from the air intake pipe 32, and the blowing chamber 34 is connected to the outside.

[0043] A control box 4 is provided inside the working chamber 11, and the refrigeration pipeline 3 is connected to the second delivery pipe 21 through the control box 4. A regulating mechanism 5 is provided on one side wall of the control box 4 for adaptively regulating the flow rate of the refrigerant according to the temperature of the external environment;

[0044] It also includes a gas engine for providing power for the operation of the compressor 12. The gas is delivered to the gas engine through a gas delivery pipe and drives the compressor 12 to work after being processed.

[0045] In actual use, in the gas heat pump system, the gas is delivered to the gas engine through a gas delivery pipe (not shown in the figure). The gas is pre-mixed with air in the gas engine and then burned. The energy generated by the combustion drives the compressor 12 to operate. The gas delivery pipe adopts a corrosion-resistant metal pipe. The pipe diameter is selected according to the gas flow and pressure requirements. It is equipped with a pressure regulating device and a gas leakage detection device to ensure the stability and safety of gas delivery. The compressor 12 is driven to operate by burning the gas. The compressor 12 compresses the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure gas. Then, the high-temperature and high-pressure refrigerant gas enters the condenser 13 through a first delivery pipe 2, exchanges heat with the water in the heating chamber 71, releases heat, and becomes liquid. The condensed high-pressure liquid refrigerant enters the liquid storage tank 14 through another first delivery pipe 2, and then expands through the expansion valve 22. The pressure drops sharply and the refrigerant temperature also decreases. Then, the refrigerant enters the refrigeration pipe 3 through the second delivery pipe 21 and the control box 4, and after passing through the evaporator 15, the refrigerant is returned to the compressor 12 through the refrigeration pipe 3.

[0046] The adjusting mechanism 5 includes an adjusting plate 51 which penetrates and is slidably connected to the side wall of the control box 4. The adjusting plate 51 is airtightly connected to the control box 4. An adjusting box 52 is fixedly connected to the outer wall of one side of the shell 1. A piston block 53 is airtightly slidably connected inside the adjusting box 52. A connecting rod 54 is fixedly connected between the piston block 53 and the adjusting plate 51. A heat conduction area 55 is provided on the side of the adjusting box 52 close to the shell 1, and the part of the adjusting box 52 except the heat conduction area 55 is an insulating area 56.

[0047] Specifically, the heat-conducting region 55 may be made of a copper alloy with high thermal conductivity, and the heat-insulating region 56 may be made of a high-efficiency heat-insulating material such as polyurethane foam.

[0048] Specifically, according to the pressure F=pS (where p is the pressure and S is the force-bearing area), assuming that the area of ​​the piston block 53 is S, the air pressure on the side of the regulating box 52 close to the heat-conducting area 55 is p1, and the air pressure on the side of the regulating box 52 away from the heat-conducting area 55 is p2 (usually the external atmospheric pressure, which can be generally regarded as constant). When p1>p2, the pressure F1=p1S on the side of the piston block 53 close to the heat-conducting area 55 is greater than the pressure F2=p2S on the side away from the heat-conducting area 55. At this time, the piston block 53 will be subjected to a resultant force F=F1-F2=(p1-p2)S from the side close to the heat-conducting area 55 to the side away from the heat-conducting area 55. Under the action of this resultant force, the piston block 53 will overcome resistance such as friction and move toward the side away from the heat-conducting area 55 until the air pressure on both sides of the piston block 53 in the regulating box 52 reaches a new balance or the resultant force on the piston block 53 is zero.

[0049] In view of the problem that most gas heat pumps in the prior art adopt a fixed cooling mode and it is difficult to adjust the cooling effect in real time according to the change of the external environment temperature, the present invention sets an adjustment mechanism 5, which can adjust the cooling effect of the gas heat pump in real time according to the temperature of the external environment during use:

[0050] When the temperature of the external environment is high, the air temperature inside the regulating box 52 is high through the heat transfer area 55, so that the air pressure in the space near the shell 1 in the regulating box 52 increases, so that there is an air pressure difference on both sides of the piston block 53, and the piston block 53 is further moved to the side away from the heat transfer area 55, and the regulating plate 51 is further driven to move in the control box 4 through the connecting rod 54, so that the opening and closing degree of the regulating plate 51 to the control box 4 is increased, so that when the temperature of the external environment is high, the refrigerant that has been expanded and cooled by the expansion valve 22 increases its flow rate when it enters the refrigeration pipe 3 through the control box 4, so that the flow rate of the refrigerant in the refrigeration pipe 3 increases, which helps to accelerate the heat exchange process, ensure that the heat in the external environment can be taken away or absorbed in time, and improve the refrigeration effect on the outside;

[0051] When the temperature of the external environment is low, the air temperature inside the regulating box 52 is low through the heat conduction area 55, so that the air pressure in the space near the shell 1 in the regulating box 52 is reduced, so that there is an air pressure difference on both sides of the piston block 53. However, at this time, the air pressure difference will cause the piston block 53 to move toward the side near the heat conduction area 55, thereby reducing the opening and closing degree of the regulating plate 51 on the control box 4. When the temperature of the external environment is low, the flow rate of the refrigerant entering the refrigeration pipe 3 is reduced, so that the flow rate of the refrigerant in the refrigeration pipe 3 is reduced, thereby avoiding frosting of the refrigeration pipe 3 due to excessive refrigerant and too fast a flow rate.

[0052] In addition, in addition to the existing adjustment method based on air pressure difference, an electric adjustment function can be added. When the temperature of the external environment changes significantly in a short period of time, the control system can quickly adjust the refrigerant flow rate through the electric adjustment motor driving the adjustment plate 51. The electric adjustment motor model here is ECMA-C20604, with a rated power of 100W and a rated speed of 3000rpm. It is equipped with a high-precision planetary reducer with a reduction ratio of 10:1 to increase torque and improve adjustment accuracy. The position feedback of the electric adjustment motor adopts an absolute encoder with a resolution of 17 bits to ensure precise control of the position of the adjustment plate and improve the timeliness and accuracy of the adjustment. Here, high-precision temperature sensors can be installed at both sides of the piston block 53 in the adjustment box 52 to transmit the temperature signal to the control system. The control system comprehensively analyzes the data of the two temperature sensors to more accurately judge the changes in the external temperature and more accurately control the action of the adjustment plate 51.

[0053] It should be noted that when the system detects a change in the outside temperature, the pressure difference-based adjustment method is used for preliminary adjustment. If the high-precision temperature sensor detects that the outside temperature changes by more than a preset threshold (such as 5°C) in a short period of time, the control system starts the electric adjustment function. The electric adjustment motor quickly drives the adjustment plate 51 to move according to the data transmitted by the temperature sensor to accurately adjust the refrigerant flow rate. During the adjustment process, the electric adjustment motor cooperates with the pressure difference-based adjustment structure. The pressure difference adjustment structure continues to provide the basic adjustment trend, and the electric adjustment motor performs fine adjustments to ensure that the adjustment plate 51 can quickly and accurately reach the appropriate position, so that the refrigerant flow rate matches the outside temperature change, avoiding the problems of adjustment lag and over-adjustment.

[0054] A blower mechanism 6 is provided inside the blowing chamber 34, and the blower mechanism 6 is controlled by the adjusting mechanism 5. The blower mechanism 6 includes a motor 61 fixedly connected to the inside of the shell 1, and a driving rod 62 is fixedly connected to the output end of the motor 61. A transmission rod 63 is rotatably connected to the blowing chamber 34 through a mounting plate, and a bevel gear set 64 is provided between the transmission rod 63 and the driving rod 62. An axial flow fan blade 65 is fixedly connected to the transmission rod 63. A varistor 66 is fixedly connected to the inner wall of the adjusting box 52, and a first spring 67 is provided between the side of the piston block 53 away from the connecting rod 54 and the varistor 66. The motor 61 is connected in series with the power supply device through the varistor 66.

[0055] Specifically, the model of motor 61 is Y2-90S-2, with a rated power of 1.5kW, a rated speed of 2840rpm, an efficiency of 85%, and a protection level of IP54, which can effectively prevent the intrusion of dust and water and adapt to the complex working environment inside the gas heat pump.

[0056] Specifically, the power supply device adopts a switching power supply, model S-240-24, with an input voltage range of AC85-265V, an output voltage of DC24V, an output current of 10A, and an overvoltage protection (OVP) function, which automatically cuts off the output when the output voltage exceeds 28V; it also has an overcurrent protection (OCP) function, which limits the current output when the output current exceeds 12A, ensuring the safe operation of the motor 61 and other electrical components.

[0057] In view of the problem in the prior art that the heat exchange efficiency of the gas heat pump fluctuates greatly under different external temperature conditions, the present invention provides a blower mechanism 6. When the position of the piston block 53 in the adjustment box 52 changes due to changes in the external temperature, the compression degree of the first spring 67 by the piston block 53 changes, which further causes the resistance value of the varistor 66 to change:

[0058] When the outside temperature is high, the piston block 53 moves toward the side close to the varistor 66, so that the compression of the first spring 67 increases. Since the compression of the first spring 67 is proportional to the pressure applied to the varistor 66, the pressure applied by the first spring 67 to the varistor 66 increases, further reducing the resistance value of the circuit where the motor 61 is located, increasing the current, and increasing the power of the motor 61 when it is working. The motor 61 drives the speed of the driving rod 62 to increase, and drives the speed of the transmission rod 63 and the axial flow fan blade 65 to increase under the action of the bevel gear set 64. When the outside temperature is high, more air flows through the evaporator 15, which can effectively improve the heat exchange efficiency between the air and the refrigerant.

[0059] When the outside temperature is low, the piston block 53 moves to the side away from the varistor 66, so that the compression of the first spring 67 is reduced, so that the pressure applied by the first spring 67 to the varistor 66 is smaller, so that the resistance value of the circuit where the motor 61 is located increases, the current decreases, and the power of the motor 61 during operation is reduced, so that the rotation speed of the axial flow fan blade 65 is reduced. By appropriately reducing the wind speed, the contact between the air and the cooling surface is reduced, and excessive moisture is avoided from condensing on the cooling surface, thereby reducing the risk of frost on the refrigeration pipe 3.

[0060] A suction mechanism 7 controlled by the blowing mechanism 6 is also provided in the shell 1, and the suction mechanism 7 includes a heating chamber 71 opened in the shell 1, and a piston plate 72 is airtightly and slidably connected in the heating chamber 71, and a heat discharge pipe 73 is fixedly connected to the outer wall of the condenser 13, and the heat discharge pipe 73 extends to a position below the piston plate 72 in the heating chamber 71, and a water inlet pipe 74 and a water outlet pipe 75 are provided in the heating chamber 71 below the piston plate 72. A mounting block 76 is fixedly connected to the outer wall of one side of the shell 1, and a lifting rod 77 is slidably connected through the mounting block 76. A U-shaped rod 78 is fixedly connected between the lifting rod 77 and the piston plate 72, and a strip limit frame 79 is fixedly connected to the bottom end of the lifting rod 77, and an extension rod 710 is fixedly connected to the end of the transmission rod 63 away from the bevel gear set 64, and a limiting column 711 is rotatably connected to the extension rod 710, and the limiting column 711 is slidably connected to the inner wall of the strip limit frame 79.

[0061] Specifically, one end of the water inlet pipe 74 away from the shell 1 is connected to a water tank to be heated, and the other end of the water outlet pipe 75 away from the shell 1 is connected to a storage tank. The hot water heated in the heating chamber 71 can be pumped out to the storage tank for insulation treatment through the water outlet pipe, and the unheated water in the water tank to be heated can be pumped into the heating chamber 71 for heating treatment through the water inlet pipe.

[0062] Specifically, one-way valves are provided in the heat discharge pipe 73, the water inlet pipe 74 and the water outlet pipe 75. The one-way valve in the heat discharge pipe 73 allows the heat released by the refrigerant in the condenser to enter the heating chamber 71 to heat the water only through the heat discharge pipe 73, while the water in the heating chamber 71 will not flow into the heat discharge pipe 73. The one-way valves in the water inlet pipe 74 and the water outlet pipe 75 allow the piston plate 72 to pump the water in the water tank to be heated into the heating chamber 71 only through the water inlet pipe 74 when performing reciprocating vertical displacement, and to pump the hot water heated in the heating chamber 71 out to the storage tank only through the water outlet pipe 75, thereby avoiding the backflow of the heated water.

[0063] It is worth mentioning that the present invention sets a suction mechanism 7. During the rotation of the transmission rod 63, the extension rod 710 and the limit column 711 can drive the strip limit frame 79 to perform reciprocating vertical displacement, thereby driving the piston plate 72 to perform reciprocating vertical displacement in the heating chamber 71 through the lifting rod 77 and the U-shaped rod 78, and continuously pumping the hot water in the heating chamber 71 through the water outlet pipe 75 to the storage box for storage, and continuously pumping the water in the water tank to be heated into the heating chamber 71 through the water inlet pipe 74 for heating. When the refrigerant releases heat to heat the water, the suction work can be performed, thereby increasing the amount of heated hot water, avoiding overheating of the hot water while ensuring full utilization of the heat. This method can meet the needs of some large hot water supply systems, speeding up the water flow rate through suction, thereby greatly increasing the amount of heated water per unit time, meeting the needs of more users for hot water, and effectively increasing the hot water production.

[0064] A stirring mechanism 8 controlled by a piston plate 72 is provided inside the heating chamber 71. The stirring mechanism 8 includes a threaded rod 81 rotatably connected to the top wall of the heating chamber 71. The piston plate 72 is threadedly connected to the threaded rod 81, and the friction coefficient between the threaded rod 81 and the piston plate 72 is less than the tangent value of the thread helix angle. The bottom end of the threaded rod 81 is coaxially fixedly connected to a stirring rod 82, and a plurality of stirring plates are distributed on the stirring rod 82 in a linear array.

[0065] It should be noted that, by providing a stirring mechanism 8, during the process of the piston plate 72 making a reciprocating vertical displacement in the heating chamber 71, since the friction coefficient between the threaded rod 81 and the piston plate 72 is less than the tangent value of the thread helix angle, the reciprocating vertical displacement of the piston plate 72 can drive the threaded rod 81 to rotate reciprocatingly, and further drive the stirring rod 82 and multiple groups of stirring plates to stir the water in the heating chamber 71, so that when the refrigerant releases heat to heat the water, the heat can fully contact the water, thereby improving the heating effect on the water, and further improving the utilization rate of the heat, thereby achieving energy-saving effect.

[0066] A spoiler mechanism 9 controlled by a limiting column 711 is provided in the evaporator 15, and the spoiler mechanism 9 includes two spoiler plates 91 arranged inside the evaporator 15, each spoiler plate 91 is fixedly connected to a transmission plate 92, each transmission plate 92 extends to the outside of the shell 1 and is fixedly connected to a moving plate 93, and a second spring 94 is provided on the outer wall of each moving plate 93 on the side corresponding to the shell 1, and the positions on both sides of the limiting column 711 in the strip limiting frame 79 are connected to moving blocks 95 in a horizontal sliding direction, and each moving block 95 is fixedly connected to a push rod 96, and each push rod 96 passes through the corresponding side of the strip limiting frame 79 and is fixedly connected to a stop block 97, and each stop block 97 is in contact with the moving plate 93 at the corresponding position, and a third spring 98 is provided between each moving block 95 and the inner wall of the strip limiting frame 79.

[0067] Specifically, the spoiler 91 is rectangular or arc-shaped, which is not limited here. Since the two spoilers 91 can push the hot water to one side when moving, and the hot water fills the inside of the evaporator 15, the hot water can flow during the pushing process, thereby improving the heat exchange efficiency between the air and the hot water.

[0068] Specifically, each transmission plate 92 is in airtight sliding connection with the evaporator 15 to ensure that the absorbed water in the evaporator 15 will not overflow.

[0069] It should also be noted that the present invention provides a spoiler mechanism 9. When the limit column 711 is driven by the transmission rod 63 to perform circular motion, the position of the limit column 711 in the strip limit frame 79 is constantly changing, so that the limit column 711 intermittently pushes the moving blocks 95 on both sides to move, and further pushes the moving plates 93 on both sides intermittently away from the shell 1 through the push rod 96 and the stop block 97. The second spring 94 and the third spring 98 cause the moving blocks 95 and the moving plates 93 to reset intermittently, so that the two spoiler plates 91 in the evaporator 15 are displaced intermittently, pushing and spoiling the absorbed water in the evaporator 15, so that the refrigerant can more fully cool the absorbed water during the refrigeration process, so as to improve the cooling effect of the absorbed water on the outside air when the air flows through the evaporator 15.

[0070] In addition, in the present invention, the transmission rod 63 can drive the suction mechanism 7 to work synchronously during the rotation process. During the operation of the suction mechanism 7, the reciprocating vertical displacement of the piston plate 72 will drive the stirring mechanism 8 to work synchronously, and the circular motion of the limit column 711 will drive the spoiler mechanism 9 to work synchronously. There is no need to set up an additional driving source. Only one motor 61 is needed to realize the pumping in and out of the heating water, the stirring treatment of the heating water and the spoiler treatment of the heated water, thereby improving the utilization rate of the gas heat pump for heat and the cooling effect on the outside world. The overall linkage of the device is strong, and the purpose of energy saving and efficiency improvement is achieved.

[0071] In addition, considering that the suction mechanism 7, the stirring mechanism 8 and the spoiler mechanism 9 are all driven by the rotation of the transmission rod 63, under long-term operation, frequent reciprocating motion and friction between components, such as the contact parts between the limit column 711 and the strip limit frame 79, the piston plate 72 and the inner wall of the heating chamber 71, the threaded rod 81 and the piston plate 72, are prone to wear, which reduces the service life of the equipment and increases the maintenance cost. In the present invention, for parts that are prone to wear, such as the limit column 711, the strip limit frame 79, the piston plate 72, the threaded rod 81, etc., materials with good wear resistance, such as high-strength alloy steel or ceramic materials, are selected to reduce the wear rate and extend the service life of the parts. At the same time, an automatic lubrication pump can also be arranged inside the shell 1 to transport the lubricating oil to the contact parts of each mechanical linkage component through a pipeline to reduce friction resistance and reduce wear.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving gas heat pump, characterized in that: include: A shell (1), wherein a working chamber (11) is provided inside the shell (1), and a compressor (12), a condenser (13), a liquid storage tank (14) and an evaporator (15) are installed in sequence from top to bottom in the working chamber (11); A first delivery pipe (2) is connected between the compressor (12) and the condenser (13), and between the condenser (13) and the liquid storage tank (14); a second delivery pipe (21) is connected between the liquid storage tank (14) and the evaporator (15), and an expansion valve (22) is installed on the second delivery pipe (21); A refrigeration pipe (3) is fixedly connected to the evaporator (15), the upper end of the refrigeration pipe (3) is connected to the second delivery pipe (21), and the lower end is connected to the compressor (12). The evaporator (15) is filled with hot water. Water-isolating membranes (31) are fixedly connected to both side walls of the evaporator (15). An air intake pipe (32) and an air exhaust pipe (33) are fixedly connected to both side walls of the evaporator (15). The air intake pipe (32) extends to the outside of the shell (1). A blowing chamber (34) connected to the air exhaust pipe (33) is provided on a side of the shell (1) away from the air intake pipe (32). The blowing chamber (34) is connected to the outside. A control box (4) is provided inside the working chamber (11), and the refrigeration pipeline (3) and the second delivery pipe (21) are connected through the control box (4). A regulating mechanism (5) is provided on a side wall of the control box (4) for adaptively regulating the flow rate of the refrigerant according to the temperature of the external environment; A blower mechanism (6) is provided inside the blower cavity (34), and the blower mechanism (6) is controlled by the regulating mechanism (5); It also includes a gas engine for providing power for the operation of the compressor (12); the gas is transported to the gas engine through a gas transmission pipe and drives the compressor (12) to work after being processed.

2. The energy-saving gas heat pump according to claim 1, characterized in that: The regulating mechanism (5) comprises an regulating plate (51) penetrating and slidably connected to a side wall of a control box (4); the regulating plate (51) and the control box (4) are airtightly connected; an regulating box (52) is fixedly connected to an outer wall of one side of the shell (1); a piston block (53) is airtightly slidably connected inside the regulating box (52); a connecting rod (54) is fixedly connected between the piston block (53) and the regulating plate (51); a heat conduction area (55) is provided on a side of the regulating box (52) close to the shell (1); and the portion of the regulating box (52) other than the heat conduction area (55) is a heat insulating area (56).

3. The energy-saving gas heat pump according to claim 2, characterized in that: The blower mechanism (6) comprises a motor (61) fixedly connected to the inside of the housing (1); a drive rod (62) is fixedly connected to the output end of the motor (61); a transmission rod (63) is rotatably connected to the inside of the blowing chamber (34) via a mounting plate; a bevel gear set (64) is provided between the transmission rod (63) and the drive rod (62); an axial flow fan blade (65) is fixedly connected to the transmission rod (63); a varistor (66) is fixedly connected to the inner wall of the regulating box (52); a first spring (67) is provided between the side of the piston block (53) away from the connecting rod (54) and the varistor (66); and the motor (61) is connected in series with a power supply device via the varistor (66).

4. The energy-saving gas heat pump according to claim 3, characterized in that: The shell (1) is further provided with a suction mechanism (7) controlled by the blowing mechanism (6), the suction mechanism (7) comprising a heating chamber (71) opened inside the shell (1), a piston plate (72) being airtightly and slidably connected inside the heating chamber (71), a heat discharge pipe (73) being fixedly connected to the outer wall of the condenser (13), the heat discharge pipe (73) extending to a position below the piston plate (72) inside the heating chamber (71), a water inlet pipe (74) and a water outlet pipe (75) being provided at a position below the piston plate (72) inside the heating chamber (71), and the shell (1) is provided with a heating chamber (71) and ... A mounting block (76) is fixedly connected to an outer wall of one side of the body (1); a lifting rod (77) is slidably connected to the mounting block (76); a U-shaped rod (78) is fixedly connected between the lifting rod (77) and the piston plate (72); a strip-shaped limit frame (79) is fixedly connected to the bottom end of the lifting rod (77); an extension rod (710) is fixedly connected to one end of the transmission rod (63) away from the bevel gear set (64); a limit column (711) is rotatably connected to the extension rod (710); and the limit column (711) is slidably connected to the inner wall of the strip-shaped limit frame (79).

5. The energy-saving gas heat pump according to claim 4, characterized in that: One end of the water inlet pipe (74) away from the shell (1) is connected to a water tank to be heated, and one end of the water outlet pipe (75) away from the shell (1) is connected to a storage tank.

6. The energy-saving gas heat pump according to claim 4, characterized in that: The heat discharge pipe (73), the water inlet pipe (74) and the water outlet pipe (75) are all provided with one-way valves.

7. The energy-saving gas heat pump according to claim 4, characterized in that: The interior of the heating chamber (71) is provided with a stirring mechanism (8) controlled by a piston plate (72), the stirring mechanism (8) comprising a threaded rod (81) rotatably connected to the top wall of the heating chamber (71), the piston plate (72) being threadedly connected to the threaded rod (81), and the friction coefficient between the threaded rod (81) and the piston plate (72) being less than the tangent value of the thread helix angle, the bottom end of the threaded rod (81) being coaxially fixedly connected to a stirring rod (82), and a plurality of stirring plates being linearly arrayed on the stirring rod (82).

8. The energy-saving gas heat pump according to claim 4, characterized in that: The evaporator (15) is provided with a spoiler mechanism (9) controlled by a limiting position column (711), the spoiler mechanism (9) comprising two spoiler plates (91) arranged inside the evaporator (15), each spoiler plate (91) being fixedly connected to a transmission plate (92), each transmission plate (92) extending outside the shell (1) and being fixedly connected to a moving plate (93), each moving plate (93) being provided with a second spring (94) on an outer wall on a side corresponding to the shell (1), the strip-shaped limiting position column (711) and the second spring (94) being arranged on the outer wall of the moving plate (93) and the shell (1), Positions located on both sides of the limiting column (711) in the frame (79) are connected with moving blocks (95) in a sliding manner in the horizontal direction, each of the moving blocks (95) is fixedly connected with a push rod (96), each of the push rods (96) passes through a corresponding side of the strip-shaped limiting frame (79) and is fixedly connected with a stop block (97), each of the stop blocks (97) contacts the moving plate (93) at the corresponding position, and a third spring (98) is provided between each of the moving blocks (95) and the inner wall of the strip-shaped limiting frame (79).

9. The energy-saving gas heat pump according to claim 8, characterized in that: Each of the transmission plates (92) is airtightly slidably connected to the evaporator (15).

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