CN221205344U - Moisture drying device and dish washer - Google Patents

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a wet gas drying device and a dish washer. The wet gas drying device comprises a runner shell, a heating piece and a fan; the flow channel shell is provided with a fluid inlet, an exhaust port and a backflow port, the fluid inlet and the backflow port are both used for being communicated with a cavity to be dried, which stores moisture, and the fan is arranged at the fluid inlet; a main flow passage, a backflow flow passage and a cooling flow passage for drying air flow are formed in the flow passage shell, the main flow passage is communicated with the fluid inlet, first ends of the backflow flow passage and the cooling flow passage are both communicated with the main flow passage, a second end of the backflow flow passage is communicated with the backflow port, and a second end of the cooling flow passage is communicated with the exhaust port; the heating element is arranged in the backflow channel. Part of the air flow is dried and then flows back to the inner container, so that the humidity in the inner container is rapidly reduced, and the drying efficiency is improved; part of the air flow is discharged after passing through the cooling flow passage, so that the cupboard is prevented from being wetted.

Description

Moisture drying device and dish washer

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a wet gas drying device and a dish washer.

Background

The temperature in the inner container is high after the dish washer works, and the humidity is high, and the dish washer needs to be dried and cooled in time so as to avoid residual water stains on tableware and avoid burn after a user opens a machine door.

The existing dish-washing machine generally adopts the technology of residual temperature drying and automatic door opening drying. The residual temperature drying technology is most common, and mainly uses the residual temperature after rinsing to dry tableware by standing for a period of time, so that the method has the advantages of low cost and no noise, but has poor drying effect and long time consumption; the automatic door opening and closing technology utilizes strong convection heat exchange in large space to directly discharge water vapor from a door, has good drying effect, low energy consumption and no noise, but easily wets a cabinet, and simultaneously dust, bacteria and insects easily enter the inner container.

Part dish washer is taken out the wet and hot gas in the inner bag, and reinjected in the inner bag after condensing separation steam, realizes drying, because the gaseous humidity is big in the inner bag, leads to condensation time long, condensation effect poor, finally influences drying efficiency.

Disclosure of utility model

The utility model aims to provide a wet gas drying device and a dish washing machine, which can improve the drying effect, reduce the energy consumption and shorten the drying time.

To achieve the purpose, the utility model adopts the following technical scheme:

A moisture drying device comprises a runner shell, a heating piece and a fan;

The flow channel shell is provided with a fluid inlet, an exhaust port and a backflow port, the fluid inlet and the backflow port are both used for being communicated with a cavity to be dried, which stores moisture, and the fan is arranged at the fluid inlet;

A main flow passage, a backflow flow passage for drying air flow and a cooling flow passage for drying air flow are formed in the flow passage shell, the main flow passage is communicated with the fluid inlet, the first ends of the backflow flow passage and the cooling flow passage are both communicated with the main flow passage, the second end of the backflow flow passage is communicated with the backflow port, and the second end of the cooling flow passage is communicated with the exhaust port;

the heating element is arranged in the backflow channel.

As an alternative to the above-mentioned wet gas drying apparatus, the first end of the return flow passage and the second end of the cooling flow passage are arranged in the rotation direction of the blower, and the second end of the return flow passage is located downstream of the second end of the cooling flow passage in the rotation direction of the blower.

As an alternative of the above moisture drying device, the fan is disposed in the flow channel shell, an air inlet of the fan is communicated with the fluid inlet, and an air outlet of the fan is disposed on a circumferential outer surface of the fan.

As an alternative to the above-mentioned wet gas drying apparatus, the air inlet of the fan is directly opposite to and communicates with the fluid inlet;

Or, the air inlet of the fan and the fluid inlet are staggered, an air inlet channel communicated with the fluid inlet is formed in the runner shell, the fan is positioned outside the air inlet channel, the air inlet of the fan is opposite to and communicated with the outlet of the air inlet channel, and the fluid inlet is arranged below the air inlet of the fan.

As an alternative scheme of the wet gas drying device, the air inlet of the fan and the fluid inlet are staggered, a water return cavity is formed in the runner shell, and the water return cavity is communicated with the fluid inlet and is positioned below the air inlet channel.

As an alternative to the above-mentioned moisture drying apparatus, the flow path housing includes:

The shell comprises a first shell and a second shell which are connected, the fluid inlet is formed in the first shell, an annular baffle is arranged on the inner wall of the first shell, and the annular baffle is arranged around the circumference of the fluid inlet;

The cover plate is arranged at the top end of the annular baffle plate, the cover plate, the annular baffle plate and the inner wall of the first shell enclose an air inlet channel, a central hole is formed in the cover plate, and the fan is located on one side, deviating from the annular baffle plate, of the cover plate and is opposite to the central hole.

As an alternative of the above-mentioned moisture drying device, the annular baffle includes a first arc section and a second arc section that are connected, the height of the first arc section is less than the height of the second arc section, the top of the first arc section is connected the apron, the second arc section with second casing butt, and be located the below of fluid inlet, the second arc section with the second casing encloses into the return water chamber.

As an alternative of the above moisture drying device, the flow channel shell further includes an end baffle, the end baffle is connected to the second arc-shaped section, one end of the end baffle is abutted to the second housing, and the other end of the end baffle is abutted to the cover plate.

As an alternative of the above moisture drying device, the flow passage housing is provided with a cooling water inlet for introducing cooling water into the cooling flow passage and a cooling water outlet for discharging the cooling water in the cooling flow passage.

The dishwasher comprises an inner container and the moisture drying device, wherein the fluid inlet and the backflow port are communicated with the inner container.

The utility model has the beneficial effects that:

In the wet gas drying device provided by the utility model, part of gas enters the runner shell, is heated and dried through the reflux runner and then returns to the liner, and part of gas is discharged after being dried through the cooling runner. The drying efficiency of the air flow in the backflow channel can be improved by reducing the flow of the air flowing back into the liner, and the humidity of the air in the liner can be rapidly reduced, so that the drying efficiency is improved; part of the airflow is discharged after passing through the cooling flow passage, so that the humidity of the discharged airflow can be reduced, and the cabinet is prevented from being affected with damp.

The dish washer provided by the utility model comprises the moisture drying device, so that the drying efficiency of the inner container can be improved, the cost is reduced, and the cabinet cannot be affected with moisture.

Drawings

Fig. 1 is a schematic structural diagram of a moisture drying device according to a first embodiment of the present utility model;

Fig. 2 is a front view of a moisture drying apparatus according to an embodiment of the present utility model without the second housing;

fig. 3 is a schematic structural view of the moisture drying device according to the first embodiment of the present utility model when the second housing is not assembled;

Fig. 4 is a cross-sectional view of a moisture drying apparatus according to a first embodiment of the present utility model;

fig. 5 is a sectional view showing a partial structure of a moisture drying apparatus according to an embodiment of the present utility model;

Fig. 6 is a schematic structural view of the moisture drying device according to the second embodiment of the present utility model when the second housing is not assembled;

Fig. 7 is a schematic view of the structure of the moisture drying apparatus according to the third embodiment of the present utility model when the second housing is not assembled;

Fig. 8 is a schematic front view of a moisture drying apparatus according to a third embodiment of the present utility model without the second casing;

fig. 9 is a sectional view showing a partial structure of a moisture drying apparatus according to a fourth embodiment of the present utility model;

fig. 10 is a schematic view of a part of the structure of a first housing according to a fourth embodiment of the present utility model;

fig. 11 is a schematic view of a part of a cover plate assembled with a first housing according to a fourth embodiment of the present utility model;

fig. 12 is a schematic view of a part of an assembled impeller, cover plate and first housing according to a fourth embodiment of the present utility model;

fig. 13 is a schematic view of a part of a flow channel shell according to a fourth embodiment of the present utility model.

In the figure:

10. A flow passage housing; 101. a main flow channel; 102. a return flow path; 103. a cooling flow passage; 1031. a straight line segment; 1032. a detour section; 10321. a branch flow channel section; 104. a heat exchange flow passage; 1041. an injection hole; 105. a water return cavity; 11. a first housing; 111. a fluid inlet; 112. a return port; 113. an exhaust port; 114. a cooling water inlet; 115. a cooling water outlet; 1161. a partition plate; 1162. a water storage baffle; 117. a positioning groove; 118. an annular baffle; 1181. a first arcuate segment; 1182. a second arcuate segment; 119. an end baffle; 12. a second housing; 13. a grid member; 14. a cover plate; 141. a central bore; 142. positioning the flange; 20. a blower; 21. a motor; 22. an impeller; 23. a motor fixing plate; 30. a heating member; 40. a filter screen; 41. a screen plate.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

The embodiment provides a moisture drying device for cooling and drying moist hot air in a cavity to be dried. The wet-air drying device can be used in a dish washer, and the embodiment is described by taking a cavity to be dried as an inner container of the dish washer as an example.

As shown in fig. 1 and 2, the moisture drying device includes a flow path case 10 and a blower 20. The flow passage shell 10 is provided with a fluid inlet 111, an exhaust port 113 and a backflow port 112, wherein the fluid inlet 111 and the backflow port 112 are used for communicating with a cavity to be dried storing moisture, and the fan 20 is arranged at the fluid inlet 111; the flow path case 10 has a return flow path 102 and a cooling flow path 103 formed therein for drying air flow, the first end of the return flow path 102 and the first end of the cooling flow path 103 are both in communication with the fluid inlet 111, the second end of the return flow path 102 is in communication with the return flow port 112, and the second end of the cooling flow path 103 is in communication with the exhaust port 113. After the fan 20 is started, hot and humid air in the liner enters the runner shell 10 through the fluid inlet 111 under the action of the fan 20, part of air is dried through the backflow runner 102 and then returns to the liner, and part of air is dried through the cooling runner 103 and then is discharged. By reducing the flow rate of the gas flowing back into the liner, the drying efficiency of the gas flow in the backflow channel 102 can be improved, and the humidity and the temperature of the gas in the liner can be rapidly reduced, so that the drying efficiency is improved; part of the air flow is discharged after passing through the cooling flow passage 103, so that the moisture of the discharged air flow can be reduced, and the cabinet is prevented from being wetted.

As shown in fig. 1, the flow path housing 10 includes a housing including a first housing 11 and a second housing 12, and a flow path is formed between the first housing 11 and the second housing 12 after the first housing 11 and the second housing 12 are coupled. The fluid inlet 111, the return port 112, and the exhaust port 113 are provided on the first housing 11. The fluid inlet 111 and the return port 112 are both arranged on the first housing 11 and are positioned on the same side of the runner housing 10, so that the fluid inlet 111 and the return port 112 are conveniently communicated with the liner of the dish washer, the distance between the liner and the runner housing 10 or the length of a connecting pipeline is reduced, the space is saved, and the cost is reduced.

In order to prevent impurities in the liner from entering the runner casing 10, the fluid inlet 111 and the backflow port 112 are both provided with grid members 13, and the grid members 13 are used for filtering the impurities so as to prevent the inside of the runner casing 10 from being blocked or polluted, and ensure the use sanitation.

Alternatively, the grille member 13 may be a cover structure, which is connected to the first housing through a screw pair, so as to facilitate disassembly and replacement.

As shown in fig. 2, the flow channel shell 10 further includes a main flow channel 101, a head end of the main flow channel 101 is connected to the fluid inlet 111, a tail end of the main flow channel 101 is respectively communicated with a first end of the return flow channel 102 and a first end of the cooling flow channel 103, and the fan 20 is disposed in the main flow channel 101. The air in the liner enters the main flow channel 101 through the fluid inlet 111 after being driven by the fan 20, and is split, one part of air flow enters the return flow channel 102, and the other part of air flow enters the cooling flow channel 103.

In this embodiment, the first end of the return flow path 102 and the first end of the cooling flow path 103 are arranged along the rotation direction of the fan 20, and the first end of the return flow path 102 is downstream of the first end of the cooling flow path 103 along the rotation direction of the fan 20. As shown in fig. 2, the main flow path 101 is located above the return flow path 102 and the cooling flow path 103, the blower 20 rotates clockwise as shown by the arrow in fig. 2, and the first end of the cooling flow path 103 and the first end of the return flow path 102 are disposed adjacently and are arranged substantially in the horizontal direction; the fluid has a tendency to flow from the first end of the cooling flow path 103 to the first end of the return flow path 102 under the drive of the fan 20. It will be appreciated that when the fluid passes through the fan 20, the moisture is forced by centrifugal force and is thrown outwards, so that the air flow with less moisture enters the backflow channel 102, and the moisture enters the cooling channel along with the air flow under the action of the centrifugal force, so that the air flowing back into the liner has less moisture, which is beneficial to reducing the humidity in the liner and improving the drying efficiency of the liner. In addition, gas-liquid separation is realized by utilizing centrifugal force, and the device has simple structure and low cost.

As shown in fig. 2, the width of the total flow channel 101 gradually increases along the flow direction of the air flow, the air flow resistance is reduced, the air flow speed is reduced, the time of the air flow in the total flow channel 101 is prolonged, and the condensation of moisture in the air flow is facilitated.

The main flow passage 101 is located at the upper end of the flow passage housing 10, and both the return flow passage 102 and the cooling flow passage 103 extend downward from the main flow passage 101. This kind of setting for when the air current that carries moisture gets into cooling runner 103, partial air current will be intercepted by the inner wall of cooling runner 103, and the moisture that carries in this partial air current is more easy to condense on the inner wall of cooling runner 103, improves the water vapor separation effect, avoids the exhaust gas moisture big and influences the cupboard.

In order to increase the drying rate of the liner, the heating element 30 is disposed in the return flow channel 102, and the return port 112 is located downstream of the heating element 30 along the fluid flow direction, so that the gas entering the return flow channel 102 is heated by the heating element 30 and then returns to the liner through the return port 112. The air flow entering the inner container from the backflow port 112 is dry high-temperature air flow, so that the moisture in the inner container can be dried, and the drying efficiency is improved.

Alternatively, the heating member 30 may be a PTC heating member or a heating wire. The PTC heating element is composed of a PTC ceramic heating element and an aluminum tube, and has the advantages of small thermal resistance and high heat exchange efficiency. The heating wire is generally made of iron-chromium-aluminum or nickel-chromium electrothermal alloy, and has the advantages of high heating temperature, long service life and low cost.

In order to ensure that the air flow entering the reflow channel 102 is heated by the heating element 30 and then enters the liner through the reflow opening 112, the reflow channel 102 is divided into a reflow front section and a reflow rear section by the heating element 30, and the heating element 30 is positioned at the joint of the reflow front section and the reflow rear section and is communicated with the reflow front section and the reflow rear section. The air flow in the reflow heating front section can enter the reflow heating rear section only after passing through the heating element 30, so as to ensure the heating effect of the heating element 30 on the reflow air flow.

In this embodiment, the heating element 30 is a cuboid, one set of surfaces of the heating element 30 opposite to each other are an air inlet surface and an air outlet surface, and the other four side surfaces of the heating element 30 are all abutted against the inner wall of the backflow channel 102, so as to ensure that the air flow entering the backflow channel 102 passes through the heating element 30.

Alternatively, the heating member 30 may include a heating body for generating heat and a plurality of fins provided at intervals on the heating body to heat the air flow by conduction of the heat generated by the heating body; the gaps between two adjacent fins are for the passage of air flow.

As shown in fig. 2 and 3, at least part of the cooling flow channel 103 is bent and extended to prolong the flow stroke of the air flow in the cooling flow channel 103 and improve the gas-liquid separation effect; in addition, the cooling flow passage 103 is bent and extended, so that the number of times of turning the airflow in the flowing process is increased, and moisture carried in the airflow can be condensed on the inner wall of the cooling flow passage 103, thereby being beneficial to improving the gas-liquid separation effect.

As shown in fig. 2 and 3, the cooling flow channel 103 includes a straight line section 1031 and a detour section 1032, the straight line section 1031 extends along a vertical direction, the bottom end of the straight line section 1031 is connected with the detour section 1032, and the detour section 1032 includes a plurality of branch flow channel sections 10321 connected end to end, so that the detour section 1032 has a serpentine shape. In addition, the circuitous section 1032 extends from bottom to top, and when the fluid flows in the circuitous section 1032, the moisture in the fluid can be condensed and falls under the action of gravity, so that the gas-liquid separation effect is further improved, and the dryness of the exhaust gas is ensured.

In this embodiment, the branch flow channel sections 10321 extend horizontally, and the plurality of branch flow channel sections 10321 are stacked in the vertical direction, and the ends of adjacent branch flow channel sections 10321 are communicated. In other embodiments, adjacent branch flow channel sections may be disposed at an included angle, so long as a curved extending detour section can be formed.

In order to improve the dryness of the exhaust gas, the flow path case 10 is provided with a cooling water inlet 114 and a cooling water outlet 115, the cooling water inlet 114 is used for introducing cooling water into the cooling flow path 103, and the cooling water outlet 115 is used for discharging the cooling water in the cooling flow path 103. By injecting cooling water into the cooling flow passage 103, the temperature of the fluid can be reduced by heat exchange between the cooling water and the fluid, so that water in the fluid can be condensed, thereby realizing gas-liquid separation.

In this embodiment, both the cooling water inlet 114 and the cooling water outlet 115 communicate with the cooling flow passage 103. That is, the cooling water is directly communicated into the cooling flow channel 103 to contact with the air flow for heat exchange, thereby being beneficial to simplifying the structure and improving the heat exchange effect.

In this embodiment, only cooling water is introduced into the cooling flow channel 103, and the backflow flow channel 102 adopts a heating mode to further dry the air flow, so that the moisture content carried by the backflow air flow can be controlled, and the drying efficiency of the liner is improved.

In order to improve the water condensation effect, a water storage tank is provided in the cooling flow passage 103, and the water storage tank is used for storing cooling water. By providing the water storage tank, a certain amount of cooling water can be always provided in the cooling flow passage 103, so that the condensing effect on the fluid can be ensured.

In this embodiment, a plurality of horizontally extending partitions 1161 are disposed in the flow path housing 10, the partitions 1161 are respectively abutted against the first housing 11 and the second housing 12, and the plurality of partitions 1161 and the flow path housing 10 enclose a roundabout section 1032. The multiple partitions 1161 are staggered, so that the flowing directions of the fluids in the two adjacent branch channel sections 10321 are opposite, and the fluids have turning positions when flowing, which is beneficial to condensation and separation of the liquids.

In order to ensure that the fluid flowing in the roundabout section 1032 can exchange heat and cool with the cooling water, each branch flow channel section 10321 is internally provided with a water storage tank, so that the fluid can exchange heat with the cooling water when passing through each branch flow channel section 10321, thereby condensing the moisture in the fluid and improving the drying effect of the air flow.

In this embodiment, the partition plate 1161 is a rectangular plate, three side surfaces of the partition plate 1161 are all connected with the runner shell 10, the other end of the partition plate is bent to form a water storage baffle 1162, and the water storage baffle 1162, the partition plate 1161 and the runner shell 10 enclose a water storage tank. The depth of the reservoir depends on the height of the reservoir plate 1162.

In other embodiments, the partition 1161 may be connected to the runner casing 10 at only one side edge, and the other three side edges are provided with water storage baffles 1162, and the water storage tanks are surrounded by the partition 1161 and the water storage baffles 1162. Alternatively, the top surface of the spacer 1161 may be recessed to form a reservoir, and in such a configuration the spacer 1161 may have a thickness to ensure that the reservoir has a depth.

As shown in fig. 3, the cooling water inlet 114 is disposed at the top end of the roundabout section 1032, the cooling water outlet 115 is disposed at the bottom end of the roundabout section 1032, so as to drive the cooling water to flow from the top end to the bottom end of the roundabout section 1032 by gravity, and the cooling water flowing in the cooling flow channel 103 is beneficial to heat exchange between the cooling water and the air flow, thereby improving the condensing effect of the moisture in the air flow and improving the drying degree of the discharged air flow.

In order to enable cooling water to enter each water storage groove, a certain amount of cooling water is always arranged in each water storage groove, and projection parts of two adjacent partition plates 1161 in the horizontal plane are overlapped. As shown in fig. 3, when the cooling water enters the top end of the detour section 1032 from the cooling water inlet 114, the cooling water enters the water storage tank formed by the uppermost partition 1161, and as the water level in the water storage tank increases, the cooling water overflows from one end of the water storage baffle 1162 connected with the partition 1161, and the overflowed cooling water flows downwards under the action of gravity and enters the water storage tank formed by the lower partition 1161. And so on, the cooling water gradually fills each water storage tank and is discharged from the cooling water outlet 115 after flowing continuously.

In order to improve the contact effect of the cooling water and the fluid, the cold water inlet can be further provided with an atomization assembly, the atomization assembly can enable the cooling water entering the cooling flow channel 103 to be sprayed out in a tiny mist form, the atomized cooling water is more dispersed and is in close contact with the flowing air flow, the heat exchange efficiency is increased, and the condensation effect is achieved.

In order to reduce the use cost, the cooling water can be tap water, namely, the cooling water inlet 114 is connected with a faucet, and a cold water source in a kitchen environment is used as a heat exchange cooling medium, so that the cost is low and the structure is simple.

In some embodiments, the moisture drying apparatus further comprises a water tank for storing tap water and a water pump for driving the liquid in the water tank to circulate in the water tank and the cooling flow passage 103, wherein the cooling water inlet 114 and the cooling water outlet 115 are both communicated with the water tank. Through with cooling water circulation flow, can improve heat transfer cooling effect.

As shown in fig. 4 and 5, the blower 20 is disposed in the flow path housing 10, the air inlet of the blower 20 communicates with the fluid inlet 111, and the air outlet of the blower 20 is disposed at the circumferential outer surface of the blower 20. By embedding the fan 20 into the runner casing 10, the space in the runner casing 10 can be fully utilized to install the fan 20, and the overall size of the moisture drying device is reduced; the runner shell 10 can play a role in protecting the fan 20 and prevent the fan 20 from being knocked and damaged.

As shown in fig. 5, the air inlet of the blower 20 is disposed directly opposite and in communication with the fluid inlet 111. The arrangement mode can enable the axial dimension of the fan 20 to be approximately the same as the thickness of the main flow channel 101, namely, the axial dimension of the fan 20 can be slightly smaller than the main flow channel 101, so long as the fan 20 and the flow channel shell 10 can be prevented from interfering with a shell, the dimension of the fan 20 can be increased on the basis of unchanged dimension of the flow channel shell 10, and the acting capability of the fan 20 is improved; in addition, the air inlet of the fan 20 is directly communicated with the fluid inlet 111, so that the air inlet resistance of the fan 20 is small, the fluid flow efficiency is improved, and the working capacity of the fan 20 is improved.

As shown in fig. 5, the blower 20 includes an impeller 22, a motor 21, and a motor fixing plate 23. The side of the runner casing 10 facing away from the fluid inlet 111 (i.e., on the second casing 12) is provided with a mounting hole, the motor 21 is disposed on the motor fixing plate 23 and is in driving connection with the impeller 22, and the motor fixing plate 23 is connected with the second casing 12 to shield the mounting hole, so that the impeller 22 is located between the first casing 11 and the second casing 12 and is opposite to the fluid inlet 111.

Optionally, the motor 21 and the motor fixing plate 23 can be fixed by screws, so that the structure is simple, and the disassembly and the assembly are convenient; the motor fixing plate 23 and the second housing 12 may be coupled by screws.

Example two

The present embodiment provides a moisture drying apparatus having substantially the same structure as that of the first embodiment, but is different from the first embodiment in the communication structure of the cooling water inlet 114 and the cooling flow passage 103.

As shown in fig. 6, a heat exchange flow passage 104 is provided in the flow passage case 10, a plurality of injection holes 1041 communicating with the cooling flow passage 103 are provided in the heat exchange flow passage 104, a cooling water inlet 114 communicates with the heat exchange flow passage 104, and a cooling water outlet 115 communicates with the cooling flow passage 103. In this embodiment, the cooling water is not directly introduced into the cooling flow passage 103, but is discharged through the injection hole 1041 after passing through the heat exchange flow passage 104. Through introducing cooling water into the heat exchange flow channel 104, the cooling water has certain water pressure in the heat exchange flow channel 104, and then is ejected through a tiny ejection hole 1041 started on the heat exchange flow channel 104, the water flow of the cooling water is converted into tiny jet flow, the surface contact of air flow and the cooling water is converted into sweeping contact, and sputtered water columns are beneficial to enhancing heat exchange and increasing air flow disturbance, so that the heat exchange effect is improved.

Specifically, the heat exchange flow passage 104 includes a vertical flow passage extending in the up-down direction and located on a side of the detour section 1032 remote from the straight section 1031, so as to facilitate communication of the vertical flow passage with the cooling water inlet 114. The horizontal extension runner is provided with at least two, and the one end of horizontal extension runner communicates with vertical runner, and the other end extends towards straightway 1031. The vertical runner and the horizontal extending runner are provided with injection holes so as to increase injection positions and injection directions.

In this embodiment, the partition 1161 is not disposed on the side of the detour section 1032 where the vertical flow channel is disposed, and the horizontally extending flow channel extends between two adjacent partitions 1161 on the other side of the detour section 1032. In some embodiments, horizontally extending flow channels may be formed in the partition 1161 on the corresponding side, and injection holes are provided on the partition 1161 so as not to affect the number of water storage tanks.

Example III

The present embodiment provides a moisture drying apparatus which is further improved on the basis of the first or second embodiment.

As shown in fig. 7 and 8, a filter screen 40 is provided in the cooling flow passage 103, and the filter screen 40 serves to partition the cooling flow passage 103 in the flow direction of the air flow. Through setting up filter screen 40, the cooling water can pass through filter screen 40 in the flow process of cooling water, and the cooling water is through filter screen 40 cooling adhesion, increases the area of contact of air current and cooling water, strengthens the mixing of cooling water and flowing gas, is favorable to improving the heat transfer effect of cooling water and flowing gas.

In this embodiment, the filter screen 40 includes a plurality of mesh plates 41 sequentially connected, two adjacent mesh plates 41 are disposed at an included angle, and a circumferential edge of each mesh plate 41 abuts against an inner wall of the cooling flow channel 103.

The filter screen 40 includes a plurality of mesh plates 41, the plurality of mesh plates 41 are arranged at intervals along the flow direction of the air flow, and the circumferential edge of each mesh plate 41 abuts against the inner wall of the cooling flow passage 103. The plurality of mesh plates 41 divide the branch channel sections 10321 into a plurality of areas with triangular cross sections, so that the contact times and positions of the cooling liquid and the mesh plates 41 are increased, and the cooling water and the air flow are fully mixed.

In some embodiments, the plurality of mesh plates 41 may also be disposed at intervals along the flow direction of the air flow, and the circumferential edge of each mesh plate 41 abuts against the inner wall of the cooling flow channel 103, so that the mesh plates 41 separate the cooling flow channel 103, and the cooling water passing through the cross section of the mesh plate 41 is ensured to pass through the mesh plates 41, so as to improve the mixing effect of the cooling water and the air flow.

Example IV

The present embodiment provides a moisture drying apparatus which is substantially the same as the moisture drying apparatus in the first, second and third embodiments, except for the position and structure of the blower 20.

As shown in fig. 9, the air inlet of the fan 20 and the fluid inlet 111 are staggered, an air inlet channel is formed in the runner casing 10, the air inlet channel is communicated with the fluid inlet 111, and the fan 20 is arranged on the outer side of the air inlet channel and is opposite to and communicated with the outlet of the air inlet channel. After the air flow enters the flow path casing 10 through the fluid inlet 111, the air flow needs to flow a certain distance in the flow path casing 10 and then enters the air inlet of the fan 20. This arrangement can prevent water carried in the air flow from directly entering the air inlet of the blower 20.

Wherein the fluid inlet 111 is positioned below the air inlet of the blower 20 such that the air flow through the fluid inlet 111 flows upward into the blower 20. During the upward flow of the air stream, some of the water carried therein can drip under gravity and is prevented from entering the fan 20 with the air stream.

As shown in fig. 10, an annular baffle 118 is provided on the inner wall of the first housing 11, the annular baffle 118 being provided around the circumference of the fluid inlet 111; as shown in fig. 11, the runner casing 10 further includes a cover plate 14, the cover plate 14 is disposed at the top end of the annular baffle 118, the cover plate 14, the annular baffle 118 and the inner wall of the first casing 11 enclose an air inlet channel, the cover plate 14 is provided with a central hole 141, and the fan 20 is located on one side of the cover plate 14 facing away from the annular baffle 118 and is opposite to the central hole 141.

In order to prevent water in the liner from passing through the fan 20 along with the air flow, as shown in fig. 9, a water return cavity 105 is further formed in the runner casing 10, and the water return cavity 105 is communicated with the fluid inlet 111 and is located below the air inlet channel. If the liquid passes through the fluid inlet 111 and then is collected in the backwater cavity 105, the water will flow back to the liner through the fluid inlet 111 along with the increase of the water in the backwater cavity 105, and will not contact with the fan 20, thereby improving the use safety of the fan 20.

As shown in fig. 10 and 11, the annular baffle 118 includes a first arc-shaped section 1181 and a second arc-shaped section 1182 connected to each other, the height of the first arc-shaped section 1181 is smaller than that of the second arc-shaped section 1182, the top end of the first arc-shaped section 1181 is connected to the cover plate 14, and the first arc-shaped section 1181 is enclosed in the upper portion of the fluid inlet 111; the second arc-shaped section 1182 is enclosed at the lower part of the fluid inlet 111, the second arc-shaped section 1182 is abutted with the second shell 12, and the second arc-shaped section 1182 and the second shell 12 enclose a backwater cavity 105.

In order to prevent air from entering the main flow channel 101 without passing through the fan 20 or water in the water return cavity 105 from entering the main flow channel 101 between the cover plate 14 and the second shell 12, the flow channel shell 10 further comprises an end baffle 119, wherein the end baffle 119 is connected with the second arc-shaped section 1182, one end of the end baffle 119 is abutted with the second shell 12, and the other end is abutted with the cover plate 14. By arranging the end baffle 119, the end baffle 119 and the second arc-shaped section 1182 are both in butt joint with the second shell 12, so that the end part of the air inlet channel and the water return cavity 105 can be blocked, air flow can only enter the main flow channel 101 through the outlet of the water inlet channel, and water in the water return cavity 105 can only flow back through the fluid inlet 111.

To better block water entering the fluid inlet 111 with the air flow, the bottom end of the cover plate 14 is opposite to the fluid inlet 111 as shown in fig. 12. The air flow entering through the fluid inlet 111 is blocked by the bottom end of the cover plate 14, and water carried in the air flow condenses on the bottom end of the cover plate 14 to slide along the surface of the cover plate 14 and drop into the water return cavity 105, so that the moisture content in the air flow entering the main flow channel 101 is reduced, and the primary gas-liquid separation is realized.

In order to facilitate the fixation of the cover plate 14, as shown in fig. 10 and 13, a positioning groove 117 is formed in the first housing 11, a positioning flange 142 is connected to an edge of the cover plate 14, and the positioning flange 142 is inserted into the positioning groove 117 to position the cover plate 14 and the first housing 11. The positioning groove 117 may be an arc-shaped groove, and the positioning flange 142 is an arc-shaped flange, so that the positioning effect is improved, and the cover plate 14 is prevented from deflecting.

Example five

The present embodiment provides a moisture drying device, which has substantially the same structure as the moisture drying device in the above embodiment, except that the heat exchange structure in the cooling flow channel 103 is different, and in the above embodiment, cooling water is directly in contact with air flow to exchange heat, and in the present embodiment, the cooling flow channel 103 is provided with a heat exchange component to exchange heat with the air flow.

In this embodiment, the moisture drying device further includes a heat exchange assembly, at least part of which is located in the cooling flow channel 103, and the heat exchange assembly is used for exchanging heat with the fluid passing through the cooling flow channel 103. The heat exchange component exchanges heat for the air flow in the cooling flow channel 103 to accelerate the condensation of moisture in the air flow so as to increase the dryness of the air flow.

The heat exchange assembly can comprise a heat exchanger, a heat exchange medium is filled in the heat exchanger, and when the air flow passes through the heat exchanger, the air flow and the heat exchange medium conduct heat transfer so as to reduce the temperature of the air flow, so that moisture carried in the air flow is condensed, and gas-liquid separation is realized. Wherein the heat exchange medium can be tap water.

Alternatively, the heat exchanger may also be a tube heat exchanger, a coil heat exchanger, a fin tube heat exchanger, or a plate heat exchanger.

In some embodiments, the heat exchange assembly may include a water tank, in which tap water is disposed, at least a portion of the water tank being located in the cooling flow channel 103, and the air flow is dried by exchanging heat between the water tank and the air flow.

In some embodiments, the heat exchange assembly may include a semiconductor refrigeration sheet, where the cold end of the semiconductor refrigeration sheet contacts and exchanges heat with the air flow in the cooling flow channel 103 to absorb heat from the air flow and condense moisture carried in the air flow.

In some embodiments, the heat exchange assembly may include a heat exchanger disposed in the cooling flow channel 103 and a water tank disposed outside the flow channel shell 10, the heat exchanger and the water tank forming a heat exchange loop for a heat exchange medium that circulates between the heat exchanger and the water tank to improve heat exchange efficiency for the air flow.

In some embodiments, the heat exchange assembly includes a heat exchanger, a semiconductor refrigeration sheet, and a water tank, at least a portion of the heat exchanger is disposed in the cooling flow channel 103, the water tank and the semiconductor refrigeration sheet are disposed outside the flow channel shell 10, the water tank forms a first heat exchange loop with a hot end of the semiconductor refrigeration sheet through a first pipe, and a cold end of the semiconductor refrigeration sheet forms a second heat exchange loop with the heat exchanger. The water tank absorbs heat emitted by the hot end of the semiconductor refrigeration piece to cool the semiconductor refrigeration piece; the cold end of the semiconductor refrigeration sheet exchanges heat with the heat exchanger to cool the heat exchange medium in the heat exchanger, thereby ensuring the heat exchange efficiency of the heat exchange medium and the air flow in the cooling flow channel 103.

Further, a part of the second heat exchange circuit is located at an end of the return flow channel 102 near the fluid inlet 111, i.e. a part of the second heat exchange circuit is located at an end of the return flow channel 102 connected to the main flow channel 101. The second heat exchange loop preheats the air flow entering the backflow channel 102, so that the drying efficiency of the liner is improved.

Example six

The present embodiment provides a moisture drying apparatus which is further improved on the basis of the above-described embodiments.

Specifically, the wet gas drying apparatus further includes a control valve, which is located at one end of the cooling flow passage 103 communicating with the fluid inlet 111, and whose opening is adjustable. By arranging the control valve, the on-off and the communication area of the cooling flow channel 103 and the main flow channel 101 can be adjusted so as to adjust the flow of the air flow in the main flow channel 101 to be shunted into the cooling flow channel 103.

To achieve intelligent control of the control valve, the moisture drying device further comprises a detection assembly for detecting humidity and/or temperature at the fluid inlet 111, the detection assembly being in electrical signal connection with the control valve.

When the humidity at the fluid inlet 111 is detected to be low, it means that the humidity in the inner container is low, the inner container is basically dry, the temperature in the inner container is low, and the humidity of the air flow entering the runner housing 10 through the fluid inlet 111 is also low. At this time, the control valve may be closed, or the control valve may be adjusted to a smaller opening degree, so that most of the air flow entering the main flow channel 101 returns to the inner container after passing through the backflow flow channel 102, thereby improving drying efficiency and reducing the influence of the external exhaust gas on the cabinet. The air flow in the backflow channel 102 enters the liner after being heated, so that the tableware in the liner can be sterilized at high temperature on the basis of fully drying the liner, and the use sanitation of the tableware is improved.

When the humidity at the fluid inlet 111 is detected to be high, it means that the humidity in the inner container is high, the temperature in the inner container is low, and the humidity of the air flow entering the flow passage housing 10 through the fluid inlet 111 is also high. At this time, the control valve may be fully opened or made to have a large opening degree. Part of the air flow entering the main flow channel 101 returns to the liner after passing through the backflow flow channel 102, and the other part of the air flow is discharged after being dried by the cooling flow channel 103, so that the humidity of the air flow in the liner is quickly reduced, and the drying efficiency is improved.

When the humidity at the fluid inlet 111 is detected to be low and the temperature is high, it is indicated that the humidity in the inner container is low, the inner container is basically dry, and the temperature in the inner container is high. At the moment, the control valve can be completely opened, and the proportion of the air flow passing through the cooling channel is increased, so that the temperature in the inner container is rapidly reduced to a safe temperature, and the burn caused by the opening of a user is avoided.

Optionally, the control valve includes a valve plate and a driving member, where the valve plate is rotatably disposed at a communication position between the main flow path 101 and the cooling flow path 103, and can completely close a communication port between the main flow path 101 and the cooling flow path 103. The driving piece is in transmission connection with the valve plate and is used for driving the valve plate to rotate so as to adjust the opening degree of the communication port.

In other embodiments, the control valve may employ any structure and principle in the prior art, as long as the opening degree adjustment between the main flow passage 101 and the cooling flow passage 103 can be achieved.

Example seven

The embodiment provides a dish washer, including the casing, set up in the inner bag of casing, set up in the supporter in the inner bag, set up in the spraying subassembly in the casing and the moisture drying device in any embodiment of above-mentioned, the spraying subassembly is used for spraying washing water to tableware etc. on the supporter is built-in to the inner bag to realize the washing of tableware. The fluid inlet 111 and the return 112 in the moisture drying device are both in communication with the liner to dry the liner.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A moisture drying device, characterized by comprising a runner shell (10), a heating element (30) and a fan (20);

The flow channel shell (10) is provided with a fluid inlet (111), an exhaust port (113) and a backflow port (112), the fluid inlet (111) and the backflow port (112) are both used for being communicated with a cavity to be dried storing moisture, and the fan (20) is arranged at the fluid inlet (111);

A main flow channel (101), a backflow flow channel (102) for drying air flow and a cooling flow channel (103) for drying air flow are formed in the flow channel shell (10), the main flow channel (101) is communicated with the fluid inlet (111), first ends of the backflow flow channel (102) and the cooling flow channel (103) are both communicated with the main flow channel (101), a second end of the backflow flow channel (102) is communicated with the backflow port (112), and a second end of the cooling flow channel (103) is communicated with the exhaust port (113);

the heating element (30) is arranged in the backflow channel (102).

2. The moisture drying device according to claim 1, characterized in that the first end of the return flow channel (102) and the second end of the cooling flow channel (103) are arranged in the direction of rotation of the fan (20), the second end of the return flow channel (102) being located downstream of the second end of the cooling flow channel (103) in the direction of rotation of the fan (20).

3. The moisture drying device according to claim 1 or 2, characterized in that the fan (20) is arranged in the runner housing (10), an air inlet of the fan (20) communicates with the fluid inlet (111), and an air outlet of the fan (20) is arranged at a circumferential outer surface of the fan (20).

4. A wet gas drying apparatus according to claim 3, wherein the air inlet of the fan (20) is directly opposite and in communication with the fluid inlet (111);

Or, the air inlet of the fan (20) is staggered with the fluid inlet (111), an air inlet channel communicated with the fluid inlet (111) is formed in the runner shell (10), the fan (20) is positioned outside the air inlet channel, the air inlet of the fan (20) is opposite to and communicated with the outlet of the air inlet channel, and the fluid inlet (111) is arranged below the air inlet of the fan (20).

5. The wet gas drying device according to claim 4, wherein the air inlet of the fan (20) is staggered with the fluid inlet (111), a water return cavity (105) is formed in the runner shell (10), and the water return cavity (105) is communicated with the fluid inlet (111) and is located below the air inlet channel.

6. The moisture drying device according to claim 5, wherein the runner housing (10) comprises:

The shell comprises a first shell (11) and a second shell (12) which are connected, the fluid inlet (111) is arranged on the first shell (11), an annular baffle (118) is arranged on the inner wall of the first shell (11), and the annular baffle (118) is arranged around the circumference of the fluid inlet (111);

The air inlet channel is formed by enclosing the cover plate (14) at the top end of the annular baffle (118), the cover plate (14), the annular baffle (118) and the inner wall of the first shell (11), the cover plate (14) is provided with a central hole (141), and the fan (20) is located on one side, deviating from the annular baffle (118), of the cover plate (14) and is opposite to the central hole (141).

7. The moisture drying device of claim 6, wherein the annular baffle (118) comprises a first arcuate section (1181) and a second arcuate section (1182) connected, the first arcuate section (1181) has a height less than the second arcuate section (1182), the top end of the first arcuate section (1181) is connected to the cover plate (14), the second arcuate section (1182) is abutted to the second housing (12) and located below the fluid inlet (111), and the second arcuate section (1182) and the second housing (12) enclose the water return cavity (105).

8. The moisture drying device of claim 7, wherein the runner housing (10) further comprises an end baffle (119), the end baffle (119) being connected to the second arcuate section (1182), one end of the end baffle (119) being in abutment with the second housing (12) and the other end being in abutment with the cover plate (14).

9. The wet gas drying apparatus according to claim 1 or 2, wherein a cooling water inlet (114) and a cooling water outlet (115) are provided on the flow passage housing (10), the cooling water inlet (114) being used for introducing cooling water into the cooling flow passage (103), and the cooling water outlet (115) being used for discharging cooling water in the cooling flow passage (103).

10. A dishwasher comprising a liner, characterized in that it further comprises a moisture drying device according to any one of claims 1-9, both the fluid inlet (111) and the return (112) being in communication with the liner.