Condensate water anti-suck-back device of air conditioning unit

Abstract

The utility model relates to the technical field of air conditioning units, and provides an anti-suck-back device for condensate water of an air conditioning unit, which comprises a water pan and a first sealing block, one side of the water pan is fixedly connected with a drain pipe, and the first sealing block is fixedly connected to the inner wall, close to the water pan, of the drain pipe. The controller controls the air suction pump to start, the air suction pump sucks air into the drainage pipe through the air suction pipe, the spherical air bag is pushed to the position of the circular ring again, sealing is achieved, the controller controls the electromagnetic valve to be opened, and external air enters the drainage pipe through the first sealing block; a downward acting force is applied to the spherical air bag, the bent blocking position of the drainage pipe is impacted, blocking impurities are scattered, and condensate water is discharged to the outside, so that the blocking impurities at the bent position of the drainage pipe can be cleaned, and the situation that the condensate water cannot be discharged and is reversely sucked into an air conditioning unit is avoided; therefore, normal operation of the air conditioning unit is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning unit technical field especially relates to a kind of air conditioning unit condensate water anti-suck-back device. BACKGROUND

[0002] Air conditioning unit, also known as air handling unit, is a centralized air handling system. It compresses refrigerant through compressor to improve its temperature and pressure, then releases heat and cools to high-pressure liquid in condenser, and then enters evaporator after pressure reduction and temperature reduction by expansion valve, absorbs the heat of surrounding air and vaporizes into gas, so as to realize refrigeration effect, and is widely used in occasions requiring accurate control of indoor temperature and humidity and cleanliness, such as industrial electronic factory, hospital operating department and other occasions.

[0003] In the prior art, when air conditioning unit is running, the condensing drain pipe may be blocked due to impurities, which causes the condensate water in the condensate pan to be unable to drain, and during the running of the air conditioning unit, negative pressure is generated in the upper part of the condensate pan, causing the condensate water to overflow the condensate pan and suck back into the interior of the air conditioning unit, affecting the safe operation of the unit. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that in the prior art, when air conditioning unit is running, the condensing drain pipe may be blocked due to impurities, which causes the condensate water in the condensate pan to be unable to drain, and during the running of the air conditioning unit, negative pressure is generated in the upper part of the condensate pan, causing the condensate water to overflow the condensate pan and suck back into the interior of the air conditioning unit, affecting the safe operation of the unit.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of air conditioning unit condensate water anti-suck-back device, comprising: water receiving tray, the inner wall of the water receiving tray is fixedly connected with drain pipe on one side, further comprising:

[0006] Sealing block one is fixedly connected to the inner wall of the drain pipe close to the water receiving tray, a plurality of springs one are fixedly connected to the top of the sealing block one in circumferential array, one end of a plurality of the springs one is fixedly connected with sealing cone one, the top of the sealing block one is fixedly connected with pressure sensor, the inner wall of the drain pipe away from the water receiving tray is fixedly connected with sealing block two, the bottom of the sealing block two is fixedly connected with a plurality of springs two in circumferential array, one end of a plurality of the springs two is fixedly connected with sealing cone two, the outer surface of the drain pipe close to the water receiving tray is fixedly connected with mounting block, the bottom of the mounting block is fixedly connected with air suction pump, the air suction end of the air suction pump is fixedly connected with air suction pipe, the air suction pipe is fixedly connected with drain pipe, and extends to the inside of drain pipe, the outer surface of the drain pipe close to the water receiving tray is fixedly connected with air inlet pipe, the inner wall of the air inlet pipe is fixedly connected with electromagnetic valve.

[0007] Preferably, the water pan is connected with the drain pipe, the air suction pipe is connected with the drain pipe, and the air inlet pipe is connected with the drain pipe.

[0008] Preferably, the top of the sealing block one is provided with a conical groove one, the sealing cone one is slidably connected with the drain pipe, the sealing cone one is matched with the conical groove one, and the top of the sealing cone one is provided with a water leakage groove.

[0009] Preferably, the bottom of the sealing block two is provided with a conical groove two, the sealing cone two is slidably connected with the drain pipe, the bottom of the sealing cone two is provided with a cross-shaped groove, and the sealing cone two is matched with the conical groove two.

[0010] Preferably, the conical groove one and the conical groove two are oppositely arranged, and the sealing cone one and the sealing cone two are oppositely arranged.

[0011] Preferably, the inner wall of the drain pipe close to the air suction pipe is fixedly connected with a circular ring, the inner wall of the circular ring is fixedly connected with a fixed strip, the bottom of the fixed strip is fixedly connected with a guide rod, and the outer surface of the guide rod is slidably connected with a spherical air bag.

[0012] Preferably, the diameter of the spherical air bag is smaller than that of the inner wall of the drain pipe, and one end of the guide rod is fixedly connected with a limiting ring.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1、 the utility model discloses, through the controller control air suction pump starts, make its through air suction pipe to the inside of drain pipe inhale, make the inside of drain pipe produce negative pressure, make the condensate water reflow a certain distance upward, push spherical air bag to circular ring position again, realize sealing, the condensate water in the inside of drain pipe moves to a certain height at this time, again through the controller closes air suction pump, simultaneously through the controller control solenoid valve opens, makes the outside gas enter the inside of drain pipe through sealing block one, exerts a downward force to spherical air bag, and under the action of the weight of condensate water itself, quickly flows along the inside of drain pipe to sealing block two position, impacts the blocked position of drain pipe bend, and the impurities of blocked are scattered, and sealing cone two is removed from the position of conical groove two, so that the condensate water is discharged to the outside, so that the impurities of blocked at the curved position of drain pipe can be cleaned, and the situation that the condensate water cannot be discharged and is sucked into the air conditioning unit can be avoided, thereby guaranteeing the normal operation of the air conditioning unit.

[0015] 2. The utility model discloses, when the condensate of drain pipe bending position gradually more, make the water level rise, exert an upward force to the spherical air bag, and the spherical air bag will float on the condensate, make the spherical air bag slide up along the outer surface of guide rod, make the spherical air bag move to the groove of annular, block up the annular, like this can make the annular and sealing block one between no condensate, thereby the subsequent air suction pump is convenient to the inside of drain pipe through the air suction pipe and inhale, avoid the condensate and inhale into the air suction pump, cause damage to the air suction pump. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of air conditioning unit condensate water anti-suck-back device section structure schematic view;

[0017] Figure 2 The utility model provides a kind of air conditioning unit condensate water anti-suck-back device sealing block one structure schematic view;

[0018] Figure 3 The utility model provides a kind of air conditioning unit condensate water anti-suck-back device spherical air bag structure schematic view;

[0019] Figure 4 The utility model provides a kind of air conditioning unit condensate water anti-suck-back device sealing block two structure schematic view.

[0020] LEGEND:

[0021] 1, water pan;2, drain pipe;3, mounting block;4, air suction pump;5, air suction pipe;6, air inlet pipe;7, sealing block one;701, conical groove one;702, sealing cone one;703, water leakage groove;704, spring one;705, pressure sensor;8, spherical air bag;801, guide rod;802, annular;803, fixed strip;804, limit ring;9, sealing block two;901, conical groove two;902, sealing cone two;903, cross-shaped groove;904, spring two. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0024] Embodiment, such as Figures 1-4The utility model provides a kind of air conditioning unit condensate water anti-suck-back device, comprising: water pan 1, the one side of water pan 1 is fixedly connected with drain pipe 2, further comprising: sealing block one 7, fixedly connected in the inner wall of drain pipe 2 close to water pan 1, the top of sealing block one 7 is fixedly connected with multiple spring one 704 in circumferential array, one end of multiple spring one 704 is fixedly connected with sealing cone one 702, the top of sealing block one 7 is fixedly connected with pressure sensor 705, the inner wall of drain pipe 2 away from water pan 1 is fixedly connected with sealing block two 9, the bottom of sealing block two 9 is fixedly connected with multiple spring two 904 in circumferential array, one end of multiple spring two 904 is fixedly connected with sealing cone two 902, the outer surface of drain pipe 2 close to water pan 1 is fixedly connected with mounting block 3, the bottom of mounting block 3 is fixedly connected with suction pump 4, the suction end of suction pump 4 is fixedly connected with suction pipe 5, suction pipe 5 is fixedly connected with drain pipe 2, and extend to the inside of drain pipe 2, the outer surface of drain pipe 2 close to water pan 1 is fixedly connected with air inlet pipe 6, the inner wall of air inlet pipe 6 is fixedly connected with electromagnetic valve.

[0025] Further, as shown in the description, Figures 1-4 Water pan 1 is communicated with drain pipe 2, suction pipe 5 is communicated with drain pipe 2, air inlet pipe 6 is communicated with drain pipe 2, through the above-mentioned setting, it is convenient for the condensate water in water pan 1 to flow into drain pipe 2, through the setting of suction pipe 5, when suction pump 4 starts, it is convenient to suck the inside of drain pipe 2, through the setting of air inlet pipe 6, it is convenient to make external gas enter the inside of drain pipe 2.

[0026] Further, as shown in the description, Figures 1-4 The top of sealing block one 7 is provided with taper groove one 701, sealing cone one 702 is slidably connected with drain pipe 2, sealing cone one 702 is matched with taper groove one 701, the top of sealing cone one 702 is provided with water leakage groove 703, by inserting sealing cone one 702 into taper groove one 701, certain sealing effect can be realized, through the setting of water leakage groove 703, it is convenient for condensate water to flow.

[0027] Further, as shown in the description, Figures 1-4 The bottom of sealing block two 9 is provided with taper groove two 901, sealing cone two 902 is slidably connected with drain pipe 2, the bottom of sealing cone two 902 is provided with cross-shaped groove 903, sealing cone two 902 is matched with taper groove two 901, by the reset force of spring two 904, sealing cone two 902 can be inserted into taper groove two 901, certain sealing effect is realized, through the setting of cross-shaped groove 903, it is convenient for condensate water to flow.

[0028] Further, as shown in the description, Figures 1-4As shown, the taper groove one 701 is oppositely opened with the taper groove two 901, and the sealing cone one 702 is oppositely arranged with the sealing cone two 902. Through the above arrangement, the sealing treatment of the curved part of the drain pipe 2 is facilitated.

[0029] Further, as shown in the drawings, Figures 1-4 As shown, the inner wall of the drain pipe 2 close to the air suction pipe 5 is fixedly connected with a circular ring 802, the inner wall of the circular ring 802 is fixedly connected with a fixed strip 803, the bottom of the fixed strip 803 is fixedly connected with a guide rod 801, the outer surface of the guide rod 801 is slidingly connected with a spherical air bag 8. Through the above arrangement, the spherical air bag 8 can slide up and down along the outer surface of the guide rod 801. When the spherical air bag 8 floats due to the condensed water and blocks the circular ring 802, a certain sealing effect can be achieved, so as to avoid affecting the subsequent air suction pump 4 to suck the inside of the drain pipe 2 through the air suction pipe 5.

[0030] Further, as shown in the drawings, Figures 1-4 As shown, the diameter of the spherical air bag 8 is smaller than the diameter of the inner wall of the drain pipe 2, and one end of the guide rod 801 is fixedly connected with a limiting ring 804. Through the above arrangement, the condensed water is facilitated to pass through, and through the arrangement of the limiting ring 804, a certain limiting effect on the spherical air bag 8 is achieved.

[0031] Working principle: when the curved part of the drain pipe 2 is blocked, the water flow speed in the drain pipe 2 decreases, the condensate water in the water pan 1 gradually increases, the pressure on the sealing cone 1 702 increases, the sealing cone 1 702 moves downward and inserts into the conical groove 1 701, the outer surface of the sealing cone 1 702 tightly fits with the inner wall of the conical groove 1 701, the water leakage groove 703 is blocked, the condensate water temporarily stops flowing downward, the spring 1 704 is compressed, the sealing cone 1 702 exerts a pressure on the pressure sensor 705, the signal is transmitted to the controller through the pressure sensor 705, the air suction pump 4 is started through the controller, the inside of the drain pipe 2 is sucked through the air suction pipe 5, because the length of the drain pipe 2 near the water pan 1 is higher than the curved part of the drain pipe 2, the condensate water in the curved part of the drain pipe 2 gradually increases, the water level rises, an upward force is exerted on the spherical air bag 8, the spherical air bag 8 floats on the condensate water, the spherical air bag 8 slides upward along the outer surface of the guide rod 801, the spherical air bag 8 moves into the groove of the circular ring 802, the circular ring 802 is blocked, so that there is no condensate water between the circular ring 802 and the sealing block 1 7, thereby facilitating the subsequent air suction pump 4 to suck the inside of the drain pipe 2 through the air suction pipe 5, avoiding the condensate water being sucked into the air suction pump 4 and damaging the air suction pump 4, when a part of the condensate water is discharged from the inside of the drain pipe 2, the condensate water near the sealing block 2 9 at the tail end of the drain pipe 2 has been discharged, the pressure on the sealing cone 2 902 disappears, the sealing cone 2 902 is inserted into the conical groove 2 901 under the restoring force of the spring 2 904, the sealing is realized, the water level in the curved part of the drain pipe 2 has dropped by a certain distance, the spherical air bag 8 moves downward by a proper distance, the sealing at the position of the circular ring 802 is released, a part of the condensate water in the curved part of the drain pipe 2 remains, under the action of the air suction pipe 5 sucking the inside of the drain pipe 2, a negative pressure is generated in the inside of the drain pipe 2, the condensate water flows back upward by a certain distance, the spherical air bag 8 is pushed to the position of the circular ring 802 again, the sealing is realized, the condensate water in the inside of the drain pipe 2 moves to a certain height, the air suction pump 4 is turned off through the controller, the electromagnetic valve is opened through the controller, the external gas enters the inside of the drain pipe 2 through the sealing block 1 7, an downward force is exerted on the spherical air bag 8, and under the action of the weight of the condensate water, the spherical air bag 8 quickly flows along the inside of the drain pipe 2 to the position of the sealing block 2 9, impacts the blocked impurities in the curved part of the drain pipe 2, the sealing cone 2 902 is subjected to a force, the sealing cone 2 902 moves away from the position of the conical groove 2 901, the condensate water is discharged to the outside, thereby cleaning the blocked impurities in the curved part of the drain pipe 2, avoiding the condensate water being unable to be discharged and being sucked into the air conditioning unit, thereby ensuring the normal operation of the air conditioning unit, when the blockage is unblocked, the air pressure in the inside of the drain pipe 2 returns to normal, under the action of the atmospheric pressure,The sealing cone 702 is subjected to an upward force, and moves upward by a proper distance under the atmospheric pressure and the restoring force of the spring 704, so that the condensed water can flow downward through the water leakage groove 703.

[0032] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application, without departing from the technical scheme of the present application, still falls within the protection scope of the present application.

Claims

1. An air conditioning unit condensate water anti-suckback device, comprising: The water pan (1) is characterized in that it further comprises: The sealing block one (7) is fixedly connected to the inner wall of the drain pipe (2) close to the water pan (1), the top of the sealing block one (7) is fixedly connected to a plurality of spring one (704) in a circular array, one end of the plurality of spring one (704) is fixedly connected to a sealing cone one (702), the top of the sealing block one (7) is fixedly connected to a pressure sensor (705), the inner wall of the drain pipe (2) away from the water pan (1) is fixedly connected to a sealing block two (9), the bottom of the sealing block two (9) is fixedly connected to a plurality of spring two (904) in a circular array, one end of the plurality of spring two (904) is fixedly connected to a sealing cone two (902), the outer surface of the drain pipe (2) close to the water pan (1) is fixedly connected to a mounting block (3), the bottom of the mounting block (3) is fixedly connected to an air suction pump (4), the air suction end of the air suction pump (4) is fixedly connected to an air suction pipe (5), the air suction pipe (5) is fixedly connected with the drain pipe (2) and extends to the inside of the drain pipe (2), the outer surface of the drain pipe (2) close to the water pan (1) is fixedly connected to an air inlet pipe (6), the inner wall of the air inlet pipe (6) is fixedly connected to a solenoid valve.

2. The anti-suckback device for a condensate water of an air conditioning unit according to claim 1, characterized in that: The water pan (1) is connected with the drain pipe (2), the air suction pipe (5) is connected with the drain pipe (2), and the air inlet pipe (6) is connected with the drain pipe (2).

3. The anti-suckback device for an air conditioning unit condensate water according to claim 2, characterized in that: The top of the sealing block one (7) is provided with a conical groove one (701), the sealing cone one (702) is slidably connected with the drain pipe (2), the sealing cone one (702) is matched with the conical groove one (701), and the top of the sealing cone one (702) is provided with a water leakage groove (703).

4. The anti-suckback device for an air conditioning unit condensate water according to claim 3, characterized in that: The bottom of the sealing block two (9) is provided with a conical groove two (901), the sealing cone two (902) is slidably connected with the drain pipe (2), the bottom of the sealing cone two (902) is provided with a cross-shaped groove (903), and the sealing cone two (902) is matched with the conical groove two (901).

5. The anti-suckback device for an air conditioning unit condensate water according to claim 4, characterized in that: The conical groove one (701) and the conical groove two (901) are oppositely arranged, and the sealing cone one (702) and the sealing cone two (902) are oppositely arranged.

6. The anti-suckback device for an air conditioning unit condensate water according to claim 4, characterized in that: The inner wall of the drain pipe (2) close to the air suction pipe (5) is fixedly connected with a circular ring (802), the inner wall of the circular ring (802) is fixedly connected with a fixed strip (803), the bottom of the fixed strip (803) is fixedly connected with a guide rod (801), and the outer surface of the guide rod (801) is slidably connected with a spherical air bag (8).

7. The anti-suckback device for an air conditioning unit condensate water according to claim 6, characterized in that: The diameter of the spherical air bag (8) is smaller than the diameter of the inner wall of the drain pipe (2), and one end of the guide rod (801) is fixedly connected with a limiting ring (804).

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