Condensate water anti-freezing structure of air source heat pump machine

Abstract

The utility model relates to a condensate water anti-freezing structure of an air source heat pump machine, which comprises a shell, a base plate, a low-temperature air source heat pump system, a condensate water anti-freezing device and a control circuit board. The position, close to the rear end, of the water receiving groove inclines and sinks to form a second slope groove cavity, and the position, located between the first slope groove cavity and the second slope groove cavity, of the water receiving groove protrudes upwards to form a slope protrusion. A first water outlet is formed in the bottom, corresponding to the first bevel groove cavity, of the water pan, and a second water outlet is formed in the bottom, corresponding to the second bevel groove cavity, of the water pan; the heating body is tightly attached to the bottom wall of the water receiving tank; the water pan is provided with a plurality of bevel groove cavities and water outlets, condensate water is guided to flow to the water outlets through reasonable inclination, the condensate water is evenly heated in cooperation with the heating body tightly attached to the bottom wall of the water pan, and local or overall freezing of the condensate water in the low-temperature environment can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to condensate water anti -freezing structure of air source heat pump machine. BACKGROUND

[0002] At present, air source heat pump technology has been widely used in heating and refrigeration field, especially in low temperature environment, its operation efficiency and stability have important influence on system overall performance.

[0003] However, in winter low temperature environment, air source heat pump in the working process, because outdoor environment temperature is extremely low, condenser produces condensate water extremely easy to freeze, causes equipment component to be attached ice, influence system heat exchange efficiency, and can cause equipment blockage, damage even stop running.

[0004] In addition, the traditional condensate water discharge structure design often exists that drainage channel is not smooth, and the drainage opening is arranged unreasonably, so that the condensate water is easy to stay or freeze again in the discharging process, thereby intensify the difficulty of anti -freezing. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of condensate water anti -freezing structure of air source heat pump machine, which can effectively prevent condensate water from freezing in low temperature environment, and ensure that condensate water is discharged smoothly.

[0006] The utility model aims at realizing as follows:

[0007] A kind of condensate water anti -freezing structure of air source heat pump machine, including shell, chassis, low temperature air source heat pump system, condensate water anti -freezing device and control circuit board, the low temperature air source heat pump system includes compressor, four-way reversing valve, condenser, economizer, expansion valve and evaporator, the shell and chassis are assembled, the inner chamber of shell and chassis are enclosed installation area between, the compressor, four-way reversing valve, condenser, economizer and expansion valve are all set on chassis and located in installation space;

[0008] The condensate water anti -freezing device includes water pan and heating body, the water pan is set in installation area and is located below condenser;

[0009] The water pan is provided with water collecting groove, the water collecting groove is inclined to sink and form first inclined surface groove cavity near its front end position, the water collecting groove is inclined to sink and form second inclined surface groove cavity near its rear end position, the water collecting groove is located between first inclined surface groove cavity and second inclined surface groove cavity and forms inclined slope protrusion upwardly protruding;

[0010] The water pan is opened with first drainage opening at the bottom corresponding to first inclined surface groove cavity, and second drainage opening at the bottom corresponding to second inclined surface groove cavity;

[0011] The heating body is tightly attached to the bottom wall of water collecting groove.

[0012] The low-temperature air source heat pump system and the heating body are respectively electrically connected with the control circuit board, and the control circuit board controls start and stop of the low-temperature air source heat pump system and the heating body.

[0013] The water receiving tray is designed with multiple inclined groove cavities and drainage openings, and the condensed water is guided to the drainage openings through reasonable inclination, and the heating body closely attached to the bottom wall of the water receiving groove uniformly heats the condensed water, which can effectively prevent the condensed water from freezing locally or as a whole in a low-temperature environment.

[0014] The arrangement of the inclined groove cavities and the inclined protrusions enables the condensed water to quickly flow to the drainage openings arranged at different positions after being collected, avoids water retention, reduces the risk of freezing caused by poor drainage, and thus ensures smooth drainage of the system.

[0015] The combination of the shell and the bottom plate forms a unified installation area, and the main components (such as the compressor, the four-way reversing valve, the condenser, the economizer, and the expansion valve) of the low-temperature air source heat pump system and the anti-freezing device are arranged in a centralized manner, which saves space and facilitates overall maintenance and management.

[0016] The start and stop of the low-temperature air source heat pump system and the heating body are controlled in linkage through the control circuit board, which can automatically adjust the equipment operating state according to the actual working environment, and ensures stable and efficient operation of the system in a low-temperature environment while realizing energy-saving operation.

[0017] The purpose of the utility model can also be solved by the following technical measures:

[0018] Further, the water receiving tray is a plastic water receiving tray, the water receiving tray is provided with a water receiving groove mounting opening along the length direction thereof, the water receiving groove is a stainless steel water receiving groove, and the water receiving groove is clamped in the water receiving groove mounting opening.

[0019] Manufacturing the water receiving tray by using plastic material can reduce weight and manufacturing cost, and is easy to process and form, meeting the requirements of complex structure design.

[0020] The stainless steel water receiving groove has excellent corrosion resistance and good heat conduction capacity, which helps to quickly and uniformly transfer the heat of the heating body to the condensed water, thereby improving the anti-freezing effect.

[0021] The stainless steel water receiving groove is fixed in the mounting opening of the water receiving tray through clamping installation, which not only ensures the firmness of the connection, but also simplifies the assembly process and reduces the risk of leakage or poor drainage caused by installation errors.

[0022] The modular clamping structure design facilitates the replacement of the stainless steel water receiving groove when local damage or performance degradation occurs, prolongs the service life of the overall system, and reduces maintenance costs.

[0023] Further, the heating body is a PTC heating body, which is tightly attached to the bottom of the stainless steel water receiving groove.

[0024] The PTC heating body has a self-regulating temperature characteristic, automatically stabilizes the output heat after reaching the set temperature, prevents overheating, and ensures the safety of the heating process.

[0025] Tight installation ensures that heat can be quickly and uniformly conducted to the stainless steel water receiving groove, promoting rapid heating of the condensed water and reducing the risk of freezing.

[0026] Self-controlled heating effectively saves energy while improving the anti-freezing performance of the entire system in low-temperature environments.

[0027] Further, the first slope of the slope protrusion near the first slope cavity is inclined towards the first slope cavity, and the second slope of the slope protrusion near the second slope cavity is inclined towards the second slope cavity.

[0028] The first slope and the second slope of the slope protrusion effectively guide the condensed water into the drain groove.

[0029] By reasonably guiding the condensed water, it prevents the water flow from stagnating in a local area, ensuring that the water flow is quickly and evenly drained.

[0030] Efficient guidance and discharge of water flow reduces the possibility of local condensed water freezing, thereby enhancing the overall anti-freezing effect.

[0031] Further, the first drain port and the second drain port are each connected to a stainless steel drain pipe, the surface of the stainless steel drain pipe is sleeved with a heating wire, and the heating wire is electrically connected to the control circuit board.

[0032] The stainless steel drain pipe is equipped with a heating wire inside and outside, ensuring that the drain pipe continuously maintains an anti-freezing temperature under low-temperature conditions and prevents internal freezing.

[0033] The heating wire is electrically connected to the control circuit board, which can be intelligently started and stopped according to the environmental temperature and system operating state, achieving precise control and energy-saving operation.

[0034] By continuously heating the drain pipe, the risk of ice blockage is eliminated, ensuring that the condensed water can be smoothly drained, and improving the overall stability of the system.

[0035] The beneficial effects of the present utility model are as follows:

[0036] The utility model discloses a plurality of slope cavities and drain ports are designed in the water receiving tray, and the condensed water is reasonably guided to the drain port through reasonable inclination, and the heating body is tightly attached to the bottom wall of the water receiving groove, realizing uniform heating of the condensed water, which can effectively prevent local or overall freezing of the condensed water in low-temperature environments.

[0037] The first inclined surface and the second inclined surface of the inclined protrusion effectively guide the condensed water into the drain groove, the condensed water is reasonably guided, water retention in a local area is prevented, water flow is ensured to be discharged rapidly and uniformly, the efficient guidance and discharge of the water flow reduce the possibility of local condensed water icing, and therefore the overall anti-freezing effect is enhanced.

[0038] The PTC heating body has a self-temperature regulating characteristic, automatically stabilizes the heat output after reaching the set temperature, prevents overheating, ensures the safety of the heating process, and the PTC heating body is closely installed to ensure that heat can be quickly and uniformly conducted to the stainless steel water receiving groove, promote the rapid heating of the condensed water, and reduce the freezing risk.

[0039] The heating wire is additionally installed in the stainless steel drain pipe, the drain pipe is continuously maintained at an anti-freezing temperature under low-temperature conditions, and internal icing is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 A schematic view of an air source heat pump machine.

[0041] Figure 2 A schematic view of an air source heat pump machine (part of the shell is excluded).

[0042] Figure 3 A front view of an air source heat pump machine (part of the shell is excluded).

[0043] Figure 4 A schematic view of a water receiving tray.

[0044] Figure 5 Another angle view of a water receiving tray.

[0045] Figure 6 A front view of a water receiving tray.

[0046] Figure 7 A sectional view of a water receiving tray. DETAILED DESCRIPTION

[0047] The utility model will be further described in connection with the drawings and examples:

[0048] An example is combined Figures 1 to 7 As shown in the figure, a condensed water anti-freezing structure of an air source heat pump machine comprises a shell 1, a bottom plate 2, a low-temperature air source heat pump system, a condensed water anti-freezing device, and a control circuit board, the low-temperature air source heat pump system comprises a compressor, a four-way reversing valve, a condenser 100, an economizer, an expansion valve, and an evaporator, the shell 1 and the bottom plate 2 are assembled, an installation area is formed between the inner cavity of the shell 1 and the bottom plate 2, the compressor, the four-way reversing valve, the condenser 100, the economizer, and the expansion valve are all arranged on the bottom plate 2 and located in the installation space;

[0049] The condensate water anti-freezing device comprises a water receiving tray 3 and a heating body 4, wherein the water receiving tray 3 is arranged in the installation area and below the condenser 100;

[0050] The water receiving tray 3 is provided with a water receiving groove 5, which is inclined and sunken to form a first inclined groove cavity 6 near the front end position, and is inclined and sunken to form a second inclined groove cavity 7 near the rear end position, and is upwardly protruded to form a slope protrusion 8 between the first inclined groove cavity 6 and the second inclined groove cavity 7;

[0051] The water receiving tray 3 is provided with a first water drainage port 61 at the bottom corresponding to the first inclined groove cavity 6, and is provided with a second water drainage port 71 at the bottom corresponding to the second inclined groove cavity 7;

[0052] The heating body 4 is tightly attached to the bottom wall of the water receiving groove 5;

[0053] The low-temperature air source heat pump system and the heating body 4 are respectively electrically connected with a control circuit board, and the control circuit board controls the start and stop of the low-temperature air source heat pump system and the heating body 4.

[0054] Further, the water receiving tray 3 is a plastic water receiving tray, which is provided with a water receiving groove mounting port along the length direction, and the water receiving groove 5 is a stainless steel water receiving groove which is clamped in the water receiving groove mounting port.

[0055] Further, the heating body 4 is a PTC heating body which is tightly attached to the bottom of the stainless steel water receiving groove.

[0056] Further, the slope protrusion 8 is inclined towards the first inclined groove cavity 6 near the first inclined surface 81 of the first inclined groove cavity 6, and is inclined towards the second inclined groove cavity 7 near the second inclined surface 82 of the second inclined groove cavity 7.

[0057] Further, the first water drainage port 61 and the second water drainage port 71 are respectively connected with a stainless steel drainage pipe 9, the surface of the stainless steel drainage pipe 9 is sleeved with a heating wire 10, and the heating wire 10 is electrically connected with the control circuit board.

[0058] The control circuit board receives temperature and other parameter information, and automatically controls the start and stop of the low-temperature air source heat pump system and all heating elements (the PTC heating body and the heating wire 10 outside the drainage pipe), which not only ensures the anti-freezing effect in the low-temperature environment, but also realizes energy-saving management.

[0059] During the operation of the air source heat pump machine, whether in the cooling or heating state, the following situations will produce and discharge condensate water:

[0060] When the heat pump system is working, the condenser 100 experiences a sudden drop in temperature, causing water vapor in the air to condense into water droplets, forming condensate. These water droplets flow out from the surface of the condenser 100 under the influence of gravity.

[0061] In winter or low-temperature environments, condensate is prone to freezing due to excessively low temperatures. If not promptly removed and protected from freezing, it can lead to ice blockage inside the equipment, thereby affecting the heat exchange efficiency and overall stable operation.

[0062] Method for receiving condensate in drip tray 3:

[0063] The condensate dripping from the condenser 100 can directly enter the water receiving tray 3. The water receiving trough 5 is designed with a first inclined groove 6 and a second inclined groove 7 at the front and rear ends, respectively, and an upward convex slope is set in the middle. This design allows the received condensate to flow naturally along the water receiving trough 5 and to be concentrated towards the drain outlets on both sides under the action of the slope, ensuring that the water flows smoothly into the drainage system.

[0064] Methods to prevent condensation from freezing:

[0065] Heating element 4 is a PTC heating element. The PTC heating element is installed close to the bottom of the stainless steel water receiving tank, which can quickly heat the received condensate, increase the water temperature, and reduce the risk of freezing.

[0066] By designing two inclined first sloped troughs 6 and second sloped troughs 7 and setting an upward convex slope, condensate can be guided to the drain outlet under the action of gravity in the water pan, reducing the water from staying in local areas and thus reducing the possibility of local freezing.

[0067] Both the first drain outlet 61 and the second drain outlet 71 are connected to stainless steel drain pipes 9, and heating wires 10 are fitted onto the surface of the drain pipes. The heating wires 10 are electrically connected to the control circuit board and can maintain the temperature inside the drain pipes above the freezing point in low-temperature environments, preventing the water inside the drain pipes from freezing and ensuring the continuous smooth flow of the drainage system.

Claims

1. An air source heat pump machine condensate water anti-freezing structure, comprising a shell, a bottom plate, a low-temperature air source heat pump system, a condensate water anti-freezing device and a control circuit board, characterized in that: The low-temperature air source heat pump system comprises a compressor, a four-way reversing valve, a condenser, an economizer, an expansion valve and an evaporator, the shell and the bottom plate are assembled, an installation area is formed between the inner cavity of the shell and the bottom plate, the compressor, the four-way reversing valve, the condenser, the economizer and the expansion valve are arranged on the bottom plate and located in the installation space; The condensate water anti-freezing device comprises a water collecting tray and a heating body, the water collecting tray is arranged in the installation area and located below the condenser; The water collecting groove is inclined and sunken to form a first inclined groove cavity near the front end position of the water collecting groove, the water collecting groove is inclined and sunken to form a second inclined groove cavity near the rear end position of the water collecting groove, and the water collecting groove is upwardly convex to form a slope convex between the first inclined groove cavity and the second inclined groove cavity; The water collecting tray is provided with a first drain port at the bottom corresponding to the first inclined groove cavity, and a second drain port at the bottom corresponding to the second inclined groove cavity; The heating body is tightly attached to the bottom wall of the water collecting groove; The low-temperature air source heat pump system and the heating body are respectively electrically connected with a control circuit board, and the control circuit board controls the start and stop of the low-temperature air source heat pump system and the heating body.

2. The condensate freeze-proof structure of an air source heat pump machine according to claim 1, characterized in that: The water collecting tray is a plastic water collecting tray, the water collecting groove mounting port is formed along the length direction of the water collecting tray, the water collecting groove is a stainless steel water collecting groove, and the water collecting groove is clamped in the water collecting groove mounting port.

3. The condensate freeze prevention structure of an air source heat pump machine according to claim 2, characterized by: The heating body is a PTC heating body, and the PTC heating body is tightly attached to the bottom of the stainless steel water collecting groove.

4. The condensate freeze-proof structure of an air source heat pump machine according to claim 1, characterized in that: The slope convex is inclined toward the first inclined groove cavity near the first inclined surface of the first inclined groove cavity, and the slope convex is inclined toward the second inclined groove cavity near the second inclined surface of the second inclined groove cavity.

5. The condensate freeze prevention structure of an air source heat pump machine according to claim 1, characterized by: The first drain port and the second drain port are respectively connected with a stainless steel drain pipe, a heating wire is sleeved on the surface of the stainless steel drain pipe, and the heating wire is electrically connected with the control circuit board.

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