WO2016090915A1

WO2016090915A1 - Heat pump dryer drainage structure, heat pump dryer, and integrated washer-dryer

Info

Publication number: WO2016090915A1
Application number: PCT/CN2015/084069
Authority: WO
Inventors: 吕佩师; 许升; 宋华诚; 张高贤
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2014-12-12
Filing date: 2015-07-15
Publication date: 2016-06-16
Also published as: CN105734939B; CN105734939A

Abstract

A heat pump dryer drainage structure and a heat pump dryer and an integrated washer-dryer that are provided with the drainage structure. The heat pump dryer drainage structure (A) comprises at least an inlet section (1) used for introducing condensed water into the drainage structure (A) and an outlet section (2) used for draining the condensed water to the outside of the dryer. Provided in the outlet section (2) is a one-way valve that can open under the pressure of the condensed water to drain the water and close when the pressure is removed. The apex of the inlet section (1) is higher than a preset condensed water drainage water level. The heat pump dryer drainage structure (A) is capable of safely and rapidly draining condensed water that is higher than the preset water level to the outside of the dryer when the condensed water cannot be drained by a water pump due to failure of a condensed water level detector apparatus, thus ensuring that structures in the dryer such as the heat pump are not submerged in the condensed water, and ensuring the use safety and reliability of the structures in the dryer.

Description

Heat pump dryer drainage structure and heat pump dryer, washing and drying machine

Technical field

The invention relates to the technical field of clothes drying equipment, and more particularly discloses a heat pump dryer drainage structure and a heat pump dryer and a heat pump washing and drying machine having the drainage structure.

Background technique

Heat pump technology is a new energy technology that has received much attention in the world in recent years. Heat pumps can obtain low-grade heat energy from natural air, water or soil, and provide high-grade heat energy that can be used by people through electric power.

The heat pump dryer or the heat pump washing and drying machine works in the process of drying the clothes: the circulating air is heated by the evaporator to generate dry hot air, and the hot air is blown into the clothes dryer, dry Hot air passes through the wet clothes and takes away the moisture on the clothes. The dry hot air passes through the wet clothes to become warm and humid air, and then enters the condenser and is cooled while precipitating moisture to become dry cold air. After the dry cold air is circulated again into the evaporator, it is heated to dry hot air and again into the dry cylinder to dry the clothes. The above drying step is repeated to achieve the drying process of the clothes dryer.

During the drying process described above, condensation water condenses on the evaporator, and the condensed water gradually drops to the bottom of the dryer casing and accumulates more. In the prior art, a water level detecting device is disposed at an outer portion of the evaporator to detect a water level of the condensed water. When the water level of the condensed water exceeds a preset water level, the water level detecting device sends a signal to the control device, and the control device controls the water pump to work. The condensed water is drained to the outside of the dryer housing. When the water level detecting device is damaged during use and the water level of the condensed water cannot be detected, the pump cannot discharge the condensed water even if the condensed water exceeds the preset water level. The accumulation of more condensate will cause the heat pump module to fill, making the entire dryer damaged and unusable.

When the detection device fails and the water level of the condensed water cannot be detected, the prior art solves The solution is to open an overflow on the side wall of the heat pump module, the height of the overflow is higher than the preset water level for discharging the condensed water. The water level of the condensate rises continuously, and after it exceeds the preset water level, it continues to rise to the height of the overflow port, and the overflow port discharges the condensed water. However, since the overflow port is mostly an open structure, that is, an open structure, during the drying process of the clothes dryer, part of the heat in the high temperature air escapes to the outside of the dryer through the overflow port, and increases to some extent. Energy consumption.

Therefore, there is a need in the market for a condensate detection device that cannot operate normally. When the condensed water exceeds the preset water level and cannot be discharged, the condensate can be safely discharged and the automatic opening and closing function does not cause heat in the dryer. Lost heat pump dryer drainage structure, and heat pump dryer and heat pump washing and drying machine having the drainage structure.

Summary of the invention

An object of the present invention is to provide a heat pump dryer drainage structure to solve the problem in the prior art that when the water level detecting device is not working normally, the heat in the dryer due to the increase of the overflow port escapes from the overflow port. Dispersed, increasing the problem of energy consumption of the dryer.

Another object of the present invention is to provide a heat pump dryer which is provided with the above-mentioned drainage structure. When the water level detecting device of the heat pump dryer does not work normally, the drainage structure can safely and quickly condense the water. Exhaust, and the heat in the heat pump dryer does not escape outward through the drainage structure, so that the heat pump dryer consumes less energy.

Still another object of the present invention is to provide a heat pump washing and drying machine, wherein the heat pump washing and drying machine is provided with the above-mentioned drainage structure, and the condensed water in the heat pump washing and drying machine cannot work normally due to the water level detecting device, thereby causing condensed water. When the water level is too high, the drainage structure can safely discharge the condensed water, and the heat pump washing and drying machine has lower energy consumption and better user experience.

To achieve this, the present invention employs the following technical solutions:

A heat pump dryer drainage structure comprising at least an inlet section for introducing condensed water into a drainage structure and an outlet section for discharging condensed water to the outside of the dryer, the outlet section being provided with a pressure capable of condensing water The one-way valve that is drained and closed after the pressure disappears is opened; the top end of the inlet section is higher than the preset condensate drain water level.

Further, the one-way valve comprises a spherical valve body, a valve and a rebounding device disposed in the outlet section, the rebounding device is fixed at one end to the spherical valve body, and the other end is fixed on the inner wall of the outlet section ;

Normally, under the action of the rebound device, the spherical valve body closes the valve, and the outlet section is not connected to the inlet section;

In the drained state, the pressure generated by the condensed water acts on the rebound device to compress the rebound device, and the inlet section communicates with the outlet section.

Preferably, the valve is a penetrating columnar structure disposed on an inner wall of the outlet section; the diameter of the spherical valve body is larger than a diameter of the through hole of the columnar structure;

The diameter of the spherical valve body is smaller than the inner diameter of the outlet section.

Further, the check valve includes a valve, a flap and a rebounding device disposed in the outlet section, and one end of the rebounding device is fixed on the blocking piece, and the other end is fixed on the inner wall of the outlet section on;

Normally, under the action of the rebound device, the flap closes the valve, and the inlet section and the outlet section are not in communication;

Preferably, the valve is a penetrating columnar structure disposed on an inner wall of the outlet section; the diameter of the baffle is larger than a diameter of the through hole of the columnar structure;

The flap has a diameter smaller than an inner diameter of the outlet section.

Preferably, the valve is disposed in a side of the outlet section adjacent the inlet section.

Further, the drainage structure is fixed on the bottom surface or the rear side wall of the dryer casing; when installed, the opening of the inlet section is upward.

Preferably, the inlet section has a bell mouth shape that is large and small; the inlet section is directly connected to the outlet section or connected to the outlet section by a pipeline.

In order to achieve the above object, on the other hand, the present invention adopts the following technical solutions:

A heat pump dryer includes a condensate water level detecting device and a water pump, and further includes a heat pump dryer drainage structure as described above.

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

A heat pump washing and drying machine comprising a condensed water level detecting device and a water pump, and further comprising a heat pump dryer drainage structure as described above.

The utility model has the beneficial effects that the drainage structure of the heat pump dryer in the present application can safely and quickly discharge the condensed water higher than the preset water level when the condensed water level detecting device fails and the water pump cannot discharge the condensed water. Outside the dryer, the structure of the heat pump in the protective dryer is not immersed in condensed water to ensure the safety and reliability of the use of the various structures in the dryer. At the same time, since the discharge structure in the present application can be opened under the action of water pressure, it can be automatically closed when the water is discharged, so that the heat in the dryer is not dissipated to the outside of the dryer, and the energy consumption is lower.

The heat pump dryer and the heat pump washing and drying machine of the present application are provided with the above-mentioned heat pump dryer drainage structure, so that the heat pump dryer has less heat loss during the drying process, even in the case where the water level detecting device fails. It can still ensure that the condensed water accumulated in the body can be discharged, ensuring the reliability and safety of the heat pump dryer and the heat pump washing and drying machine. The energy consumption during use is lower, and the drying effect is better. The experience is better and the market competitiveness of the products is enhanced.

DRAWINGS

1 is a schematic view showing the overall structure of a drainage structure of a heat pump dryer according to Embodiment 1 of the present invention;

2 is a schematic view showing the overall structure of a drainage structure of a heat pump dryer according to a second embodiment of the present invention;

3 is a schematic view showing the overall structure of a drainage structure of a heat pump dryer according to a third embodiment of the present invention;

4 is a schematic view showing the overall structure of a heat pump washing and drying machine according to a fourth embodiment of the present invention.

In the picture:

A, drainage structure; 1, inlet section; 2, outlet section; 3, valve; 4, spherical valve body; 5, rebound device; 6, fixed seat; 7, compressor; 8, water level detection device; 10, condenser; 11, blocking piece; 12, hinged shaft.

detailed description

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Embodiment 1

The present embodiment proposes a heat pump dryer drainage structure comprising at least an inlet section for introducing condensed water into the drainage structure and an outlet section for discharging the condensed water to the outside of the dryer, between the inlet section and the outlet section They can be connected directly or together by tubing. The outlet section is provided with a check valve that can be opened under the pressure of the condensed water to be drained and closed after the pressure disappears; the top end of the inlet section is higher than the preset condensate drain water level.

As shown in FIG. 1 , it is a preferred embodiment of the heat pump dryer drainage structure proposed in this embodiment. In this embodiment, the drainage structure is composed only of the inlet section 1 and the outlet section 2, and the two parts are The spaces are no longer connected by pipes, so that the drainage structure occupies a small volume and is suitable for installation in a small space. In the present embodiment, a check valve is provided in the outlet section 2 that can be opened under the pressure of the condensed water to discharge and close after the pressure disappears. The check valve in this embodiment includes a spherical valve body 4, a valve 3 and a rebounding device 5 disposed in the outlet section 2. The rebounding device is preferably a spring, and one end of the spring is fixed to the spherical valve body 4, and the spring is The other end is fixed to the inner wall of the outlet section 2 by a fixing seat 6. Fixing seat 6 For the inverted T-shaped structure, the horizontal portion of the T-shape is fixed to the inner wall of the outlet section 2, and the vertical portion of the T-shape is fixed to the spring. Normally, that is, if the height of the condensed water does not reach the height of the inlet section 1 and does not require drainage, the spring is in a natural state, without compression or stretching or in a slight compression state, so that the spherical valve body 4 can put the valve 3 is closed, and the outlet section 2 and the inlet section 1 are not connected. In the draining state, that is, when the height of the condensed water exceeds the height of the inlet section 1, the condensed water enters the inlet section 1 and acts on the spherical valve body 4, and the pressure generated by the condensed water acts on the spring to compress the spring, spherical The valve body 4 is separated from the valve 3, and the inlet section 1 is in communication with the outlet section 2, and the condensed water enters the outlet section 2 from the inlet section 1 and exits the casing. When the condensed water exceeding the tip of the inlet section 1 is completely discharged, the pressure acting on the spherical valve body 4 and the spring disappears, and under the action of the spring, the spherical valve body 4 moves upward to continue closing the valve 3, so that the inlet section 1 and the inlet section 1 The exit segments 2 are no longer connected. The rebounding device 5 in the present embodiment is not limited to the use of a spring, but may be another elastic device capable of being deformed under pressure and capable of returning to its original shape after the pressure is removed.

During the installation of the drainage structure, it is necessary to ensure that the top end of the inlet section 1 is higher than the pre-set condensate drainage water level, and at the same time lower than the lowest position of some parts of the casing that cannot be immersed to ensure Condensate can be drained in time without damage to heat pumps, evaporators, condensers, etc. in the housing.

In this embodiment, as a further embodiment, the valve 3 is a penetrating columnar structure disposed on the inner wall of the outlet section 2. In order to ensure that the spherical valve body 4 can completely close the valve 3, the diameter of the spherical valve body 4 is The diameter of the through hole larger than the columnar structure, while the diameter of the spherical valve body 4 is smaller than the inner diameter of the outlet section 2. Preferably, the valve 3 is arranged in the outlet section 2 on the side close to the inlet section 1. The structure of the outlet section 2 is preferably a tubular structure, and the inner diameter dimension of the tubular structure is always constant. The inlet section 1 has a large and small bell mouth shape, and the horn structure can reduce the tension of the surface, and the condensed water is easy to open the spherical valve body 4 by its own impact force, and the condensed water is quickly discharged.

The drainage structure of the heat pump dryer in the present application can safely and quickly discharge the condensed water higher than the preset water level to the dryer after the condensed water level detecting device fails, and the pump cannot discharge the condensed water. The structure of the heat pump in the dryer is not immersed in condensed water, ensuring the safety and reliability of the use of the various structures in the dryer. At the same time, since the discharge structure in the present application can be opened under the action of water pressure, it can be automatically closed when the water is discharged, so that the heat in the dryer is not dissipated to the outside of the dryer, and the energy consumption is lower.

Embodiment 2

As shown in FIG. 2, it is the heat pump dryer drainage structure proposed in this embodiment, which has the same structure as that of the first embodiment, and also includes an inlet section 1 and an outlet section 2. The difference between this embodiment and the first embodiment is that the structure of the one-way valve in this embodiment is different from that in the first embodiment. The check valve in this embodiment includes a valve 3, a blocking piece 11 and a rebounding device 5 disposed in the outlet section 2. One end of the rebounding device 5 is fixed on the blocking piece 11, and the other end of the rebounding device 5 is fixed at On the inner wall of the outlet section 2. The rebounding device 5 in this embodiment is also a spring as in the first embodiment. The specific fixing manner is that the spring is passed through the blocking piece 11 and appropriately fixed so that the spring is not disengaged from the blocking piece 11, and the spring is disposed in the vertical direction and fixed to the inner wall of the outlet section 2 through the fixing seat 6.

In this embodiment, the shape of the flap 11 may be square or circular, as long as it can be placed in the outlet section 2 while blocking the valve 3.

Under normal conditions, that is, without draining, the flap 11 is under the action of the spring, the spring is in the original long state or slightly compressed, so that the flap 11 closes the valve 3, and the inlet section 1 and the outlet section 2 are not in communication. In the drained state, the pressure generated by the condensed water acts on the spring to further compress the spring, and the flap 11 moves downward under the action of the condensed water and compresses the spring, during which the flap 11 and the spring are maintained in the vertical direction. During the movement, an opening is formed between the flap 11 and the valve 3, and the inlet section 1 and the outlet section 2 communicate with each other, and the condensed water enters the outlet section 2 from the inlet section 1 and exits the casing.

In this embodiment, the inlet section 1 and the outlet section 2 are directly connected together, and are integrally formed. Of course, the inlet section 1 and the outlet section 2 can be separately manufactured and then joined together by a fixing device. However, if they are connected by a fixing device, there may be a phenomenon that water leakage occurs due to insufficient connection.

Embodiment 3

As shown in FIG. 3, it is a drainage structure proposed in this embodiment. The drainage structure in this embodiment is basically the same as the structure in the second embodiment. The one-way valve in this embodiment also includes the outlet section 2. The valve 3, the flap 11 and the rebounding device 5, one end of the rebounding device 5 is fixed on the flap 11, and the other end of the rebounding device 5 is fixed on the inner wall of the outlet section 2.

In the same manner as in the second embodiment, the shape of the flap 11 in this embodiment may be square or circular, as long as it can be placed in the outlet section 2 while blocking the valve 3.

The difference between this embodiment and the second embodiment is that one end of the blocking piece 11 in the embodiment is fixed on the inner wall of the outlet section 2 by the hinge shaft 12, and the other end is a free end. At the same time, the rebounding device 5 is a spring, and one end of the spring is fixed on the blocking piece 11, so that the spring is fixedly connected with the blocking piece 11 and the force received by the blocking piece 11 can be transmitted to the spring while the two are not separated. The other end of the spring is directly fixed to the inner wall of the outlet section 2 so that the spring is disposed in an inclined state, and the spring has a certain angle with the inner wall of the outlet section 2, and the angle is preferably 60°.

In the normal state, under the joint action of the spring and the hinge shaft 2, the flap 11 closes the valve 3, and the inlet section 1 and the outlet section 2 are not in communication. In the draining state, the pressure generated by the condensed water acts on the spring to compress the spring, and the flap 11 rotates around the hinge shaft 12 under the action of the condensed water, and an opening is formed between the free end of the flap 11 and the valve 3, and the inlet section 1 and The outlet sections 2 communicate with each other, and the condensed water enters the outlet section 2 from the inlet section 1 and exits the casing.

When the condensed water is discharged, the pressure acting on the spring disappears, the elastic force generated by the compression of the spring acts on the flap 11, the flap 11 rotates about the hinge shaft 12, and the free end of the flap 11 closes the valve 3.

Embodiment 4

As shown in FIG. 4, it is a heat pump dryer according to the embodiment, which includes a condensed water level detecting device 8, a water pump 9 and a condenser 10. The heat pump dryer in this embodiment is provided with the first embodiment. Heat pump dryer drainage structure A.

Embodiment 5

The embodiment of the present invention provides a heat pump washing and drying machine, including a condensed water level detecting device, a water pump, a condenser and an evaporator. The heat pump washing and drying machine in this embodiment is provided with the heat pump of the second embodiment or the third embodiment. Dryer drainage structure.

The technical principles of the present invention are described above in conjunction with the specific embodiments, which are merely intended to explain the principles of the present invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art can devise various other embodiments of the present invention without departing from the scope of the invention.

Claims

A heat pump dryer drainage structure comprising at least an inlet section (1) for introducing condensed water into the drainage structure (A) and an outlet section (2) for discharging the condensed water to the outside of the dryer, characterized in that : the outlet section (2) is provided with a one-way valve that can be opened under the pressure of the condensed water to drain and close after the pressure disappears;

The top end of the inlet section (1) is above the pre-set condensate drain level.
The heat pump dryer drainage structure according to claim 1, wherein said one-way valve comprises a spherical valve body (4), a valve (3) and a rebounding device disposed in said outlet section (2) (5), one end of the rebound device (5) is fixed to the spherical valve body (4), and the other end is fixed on the inner wall of the outlet section (2);

Normally, under the action of the rebound device (5), the spherical valve body (4) closes the valve (3), and the outlet section (2) is not in communication with the inlet section (1);

In the drained state, the pressure generated by the condensed water acts on the rebound device (5) to compress the rebound device (5), and the inlet section (1) communicates with the outlet section (2).
The drain structure of a heat pump dryer according to claim 2, wherein the valve (3) is a penetrating columnar structure disposed on an inner wall of the outlet section (2);

The diameter of the spherical valve body (4) is larger than the diameter of the through hole of the columnar structure;

The diameter of the spherical valve body (4) is smaller than the inner diameter of the outlet section (2).
The heat pump dryer draining structure according to claim 1, wherein said one-way valve comprises a valve (3), a flap (11) and a rebounding device disposed in said outlet section (2) ( 5), one end of the rebound device (5) is fixed on the blocking piece (11), and the other end is fixed on the inner wall of the outlet section (2);

Normally, under the action of the rebound device (5), the flap (11) closes the valve (3), and the inlet section (1) is not in communication with the outlet section (2);

In the drained state, the pressure generated by the condensed water acts on the rebound device (5) to compress the rebound device (5), and the inlet section (1) communicates with the outlet section (2).
The drain structure of a heat pump dryer according to claim 4, wherein the valve (3) is a penetrating columnar structure disposed on an inner wall of the outlet section (2);

The diameter of the blocking piece (11) is larger than the diameter of the through hole of the columnar structure;

The flap (11) has a smaller diameter than the inner diameter of the outlet section (2).
A heat pump dryer drainage structure according to claim 3 or 5, characterized in that the valve (3) is arranged in a side of the outlet section (2) close to the inlet section (1).
The heat pump dryer drainage structure according to any one of claims 1 to 6, wherein the drainage structure is fixed on a bottom surface or a rear side wall of the dryer casing;

When installed, the opening of the inlet section (1) is upward.
The heat pump dryer drainage structure according to any one of claims 1 to 6, wherein the inlet section (1) has a bell mouth shape that is large and small;

The inlet section (1) is connected directly to the outlet section (2) or to the outlet section (2) via a line.
A heat pump dryer comprising a condensate water level detecting device and a water pump, characterized by further comprising a heat pump dryer draining structure according to any one of claims 1-8.
A heat pump washing and drying machine comprising a condensed water level detecting device and a water pump, characterized by further comprising the heat pump dryer draining structure according to any one of claims 1-8.