CN218717540U

CN218717540U - Pump device and gas water heater

Info

Publication number: CN218717540U
Application number: CN202222985952.6U
Authority: CN
Inventors: 蒋伟; 丁悦; 朱立夫
Original assignee: Aosmith China Water System Co ltd; AO Smith China Water Heater Co Ltd
Current assignee: Aosmith China Water System Co ltd; AO Smith China Water Heater Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-24
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a pump unit and gas hot water system, it relates to fluid drive technical field, and the pump unit includes: the shell is provided with a liquid inlet and a liquid outlet, a first cavity and a second cavity which are communicated are formed in the shell, the liquid inlet is communicated with the first cavity, and the second cavity is communicated with the liquid outlet; an impeller mechanism disposed within the second chamber; the flow guide part is arranged in the first cavity, a first flow channel is formed in the flow guide part, the inlet of the first flow channel is communicated with the liquid inlet, and the outlet of the first flow channel is communicated with the second cavity, so that fluid flowing in from the liquid inlet enters the second cavity after passing through the first flow channel; the exhaust mechanism is arranged on the shell and communicated with the first cavity; a bubble trap mechanism, at least a portion of which is located upstream of the inlet of the first flow channel. The pump device can capture, collect and discharge bubbles in fluid flowing through the pump device in time.

Description

Pump device and gas water heater

Technical Field

The utility model relates to a fluid drive technical field, in particular to pump unit and gas hot water system.

Background

In the heating system, air contained in water overflows in the form of bubbles due to problems of misplacement of laid pipelines, fluctuation of water temperature of hot water, uneven temperature and the like. When the air in the heating pipeline reaches a certain amount, the phenomenon of air resistance can occur, which can cause the problem that the hot fluid in the heating pipeline can not smoothly circulate, and the heat dissipation element is not hot subsequently. Therefore, in the prior art, an exhaust valve is generally additionally connected to a heating pipeline, but the exhaust efficiency and the exhaust success rate of the exhaust mode are low, and the gas in the heating pipeline cannot be exhausted in time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a pump device and a gas water heater, which can capture the bubbles in the fluid flowing through the pump device in time, collect and discharge the bubbles.

The embodiment of the utility model provides a concrete technical scheme is:

a pump apparatus, the pump apparatus comprising:

the liquid inlet is communicated with the first cavity, and the second cavity is communicated with the liquid outlet;

an impeller mechanism disposed within the second chamber;

the flow guide part is arranged in the first cavity and is provided with a first flow passage, an inlet of the first flow passage is communicated with the liquid inlet, and an outlet of the first flow passage is communicated with the second cavity, so that fluid flowing in from the liquid inlet enters the second cavity after passing through the first flow passage;

the exhaust mechanism is arranged on the shell and communicated with the first cavity;

a bubble trap mechanism, at least a portion of which is located upstream of the inlet of the first flow channel.

Preferably, the pump device further comprises:

a partition having an opening, the partition separating the housing interior into the first cavity and the second cavity;

one end of the flow guide piece is an outlet of the first flow channel, and one end of the flow guide piece is connected with or abutted against the opening.

Preferably, the other end of the flow guide member is an inlet of the first flow passage, and a gap is formed between the other end of the flow guide member and at least a part of the inner side wall of the housing.

Preferably, the exhaust mechanism is communicated with the liquid inlet through a second flow passage, an annular space is formed between the outer side wall of the flow guide part and the inner side wall of the shell, and the second flow passage comprises the annular space.

Preferably, the bubble catching means is located at least partially in the annular space so that fluid flowing in from the liquid inlet passes through the bubble catching means and then enters the first flow passage.

Preferably, the bubble catching mechanism is wrapped around the circumference of the flow guide member.

Preferably, the bubble trap means is located at least partially in the annular space between the inlet of the first flow channel and the liquid inlet.

Preferably, the bubble catching mechanism comprises a mesh body.

Preferably, the net body is arranged on the outer side wall of the flow guide member.

Preferably, the net body and the flow guide member are of an integrated structure.

Preferably, the flow guide is tubular and extends along the axial direction of the pump device.

Preferably, the pump device further comprises:

a partition having an opening in a middle thereof, an axis of the flow guide being disposed coaxially with an axis of the pump device.

Preferably, the housing has a communication port, and the exhaust mechanism communicates with the second flow passage through the communication port; when the pressure of the gas in the exhaust mechanism exceeds a preset pressure, the exhaust mechanism is opened to exhaust the gas in the exhaust mechanism.

Preferably, the axis of the pump means extends generally horizontally; the exhaust mechanism and the communication port are located at an upper portion of the housing.

A water heater, comprising: a heating unit for heating a fluid flowing therethrough; a pump device as claimed in any one of the preceding claims communicable with said heating unit.

The technical scheme of the utility model following beneficial effect that is showing has:

the pump device in this application enables fluid to flow into from the inlet of casing and reach first cavity, and after bubble catching mechanism, get into the import of first flow path, during this period, bubble in the fluid can be caught by bubble catching mechanism as far as, and fluid gets into the second cavity after the first flow path of water conservancy diversion spare again and is discharged from the liquid outlet of casing after being carried out the pressure boost by impeller mechanism in. The gas bubbles formed by the capturing of the bubble capturing mechanism are discharged to the outside of the pump device through the exhaust mechanism communicated with the first cavity. Above-mentioned pump unit can't directly get into to the second cavity after the inlet of fluid inflow casing, must just can get into the first runner of water conservancy diversion spare through the bubble catching mechanism of the import upper reaches of first runner, can make bubble catching mechanism and fluid have abundant contact at the import upper reaches of first runner like this, catch the collection with the bubble in the fluid, and the bubble after being caught by bubble catching mechanism can discharge through exhaust mechanism as fast as possible, avoid getting into first runner as far as, and lead to appearing unable exhaust problem. The pump device in the present application has the advantage of efficient capture and collection of bubbles in the fluid flowing through.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.

FIG. 1 is a cross-sectional view of a pump assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a pump assembly according to an embodiment of the present invention;

fig. 3 is a side view of a pump assembly in an embodiment of the invention.

Reference numerals of the above figures:

1. an impeller mechanism; 2. a housing; 21. a liquid inlet; 22. a liquid outlet; 23. a first cavity; 24. a second cavity; 25. a communication port; 26. a first housing; 27. a second housing; 3. a flow guide member; 31. a first flow passage; 4. an exhaust mechanism; 5. a bubble catching mechanism; 6. a separator; 61. an opening; 7. a motor unit; 8. and (5) sealing rings.

Detailed Description

The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In order to capture and collect and discharge the gas in the fluid flowing through the pump device in time, the present application provides a pump device, fig. 1 is the embodiment of the present invention, fig. 2 is the embodiment of the present invention, fig. 3 is the embodiment of the present invention, the pump device is a side view, as shown in fig. 1 to fig. 3, the pump device can include: a shell 2 provided with a liquid inlet 21 and a liquid outlet 22, wherein a first cavity 23 and a second cavity 24 which are communicated are formed in the shell 2, the liquid inlet 21 is communicated with the first cavity 23, and the second cavity 24 is communicated with the liquid outlet 22; the impeller mechanism 1 is arranged in the second cavity 24; the flow guide part 3 is arranged in the first cavity 23, the flow guide part 3 is provided with a first flow passage 31, the inlet of the first flow passage 31 is communicated with the liquid inlet 21, the outlet of the first flow passage 31 is communicated with the second cavity 24, so that the fluid flowing in from the liquid inlet 21 enters the second cavity 24 after passing through the first flow passage 31; the exhaust mechanism 4 is arranged on the shell 2, and the exhaust mechanism 4 is communicated with the first cavity 23; and a bubble catching means 5, at least a part of the bubble catching means 5 being located upstream of the inlet of the first flow path 31.

The pump device in the present application enables the fluid to flow into the first cavity 24 from the liquid inlet 21 of the housing 2, and after passing through the bubble catching mechanism 5, the fluid enters the inlet of the first flow channel 31, during which, after bubbles in the fluid can be caught by the bubble catching mechanism 5 as much as possible, the fluid enters the second cavity 24 after passing through the first flow channel 31 of the flow guide member 3, is pressurized by the impeller mechanism 1, and then is discharged from the liquid outlet 22 of the housing 2. The gas bubbles formed by the trapping of the bubble trapping means 5 are discharged to the outside of the pump apparatus through the gas discharging means 4 communicating with the first chamber 24. The pump device cannot directly enter the second cavity 24 after the fluid flows into the liquid inlet 21 of the housing 2, and the fluid must pass through the bubble catching mechanism 5 at the upstream of the inlet of the first flow channel 31 to enter the first flow channel 31 of the flow guide member 3, so that the bubble catching mechanism 5 and the fluid can be in sufficient contact at the upstream of the inlet of the first flow channel 31 to catch and collect bubbles in the fluid, and the bubbles caught by the bubble catching mechanism 5 can be discharged through the exhaust mechanism 4 as soon as possible, thereby avoiding the problem that the fluid cannot be discharged due to the fact that the fluid enters the first flow channel 31. The pump device in the present application has the advantage of efficient capture and collection of bubbles in the fluid flowing through.

In order to provide a better understanding of the pump arrangement in the present application, it will be further explained and illustrated below. As shown in fig. 1, the pump apparatus may include: the device comprises a shell 2, an impeller mechanism 1, a flow guide piece 3, an exhaust mechanism 4 and a bubble catching mechanism 5. Wherein, the housing 2 is provided with a liquid inlet 21 and a liquid outlet 22, external fluid enters the interior of the pump device from the liquid inlet 21, and the fluid pressurized by the impeller mechanism 1 in the pump device is discharged out of the pump device from the liquid outlet 22.

As shown in fig. 1, a first cavity 23 and a second cavity 24 are formed in the housing 2, the liquid inlet 21 is communicated with the first cavity 23, and the second cavity 24 is communicated with the liquid outlet 22. The impeller means 1 is disposed in the second cavity 24. In order to make the first cavity 23 and the second cavity 24 formed in the housing 2, the pump device may comprise: a partition 6, the partition 6 partitioning the inside of the case 2 into a first cavity 23 and a second cavity 24. To the left of the partition 6 is a first cavity 23. To the right of the partition 6 is a second cavity 24. The partition 6 may be a separate member provided in the housing 2, or may be provided integrally with the housing 2.

As shown in fig. 1, the pump apparatus includes: and the motor unit 7 is in transmission connection with the impeller mechanism 1, so that the impeller mechanism 1 is driven to rotate. The housing 2 may comprise a first housing 26 and a second housing 27 which can be assembled together, the first housing 26 forms the first cavity 23 and the second cavity 24, the impeller mechanism 1, the baffle 3 and the bubble catching mechanism 5 are arranged, and the first housing 26 may be provided with the air discharging mechanism 4. The motor unit 7 may be disposed in the second housing 27. In other possible embodiments, the rotating shaft of the motor unit 7 may also be inserted into the housing 2 and in turn be in driving connection with the impeller mechanism 1.

As shown in fig. 1, the flow guide 3 is disposed in the first cavity 23, and a first flow passage 31 is formed in the flow guide 3. An inlet of the first flow passage 31 is communicated with the liquid inlet 21, and an outlet of the first flow passage 31 is communicated with the second cavity 24, so that the fluid flowing from the liquid inlet 21 enters the second cavity 24 after passing through the first flow passage 31.

When a partition 6 is provided in the pump device, as shown in fig. 1, the partition 6 may have an opening 61 thereon. The opening 61 may be located in the middle of the partition 6. One end of the flow guide member 3 is an outlet of the first flow passage 31, and one end of the flow guide member 3 is connected to or abutted against the opening 61. Further, a sealing ring 8 may be disposed at one end of the flow guide 3 and the opening 61, so as to ensure the sealing performance therebetween. The other end of the flow guide member 3 is an inlet of the first flow passage 31, and a gap is formed between the other end of the flow guide member 3 and at least a part of the inner side wall of the housing 2, so that fluid can flow into the first flow passage 31 of the flow guide member 3 from the inside of the first cavity 23. At least part of the bubble catching means 5 is located upstream of the inlet of the first flow channel 31. The bubble catching mechanism 5 is used for catching smaller bubbles in the fluid flowing through and converging the bubbles into larger bubbles. With the above structure, the fluid flowing from the liquid inlet 21 of the housing 2 cannot directly flow into the second cavity 24 through the opening 61 of the partition member 6, and the fluid must pass through the bubble catching mechanism 5 upstream of the inlet of the first flow passage 31 to enter the first flow passage 31 of the flow guide member 3 through the gap between the other end of the flow guide member 3 and the inner side wall of the housing 2, so that the bubble catching mechanism 5 and the fluid can be in sufficient contact upstream of the inlet of the first flow passage 31 to catch the bubbles in the fluid.

As shown in fig. 1, an exhaust mechanism 4 may be provided on the housing 2 for exhausting gas inside the housing 2 to the outside of the housing 2. The air discharge means 4 may be in communication with the first chamber 23, and the air bubbles trapped in the fluid by the air bubble trapping means 5 are discharged through the air discharge means 4. With the above configuration, the air bubbles trapped by the air bubble trapping mechanism 5 can be discharged through the air discharging mechanism 4 as quickly as possible, and the air bubbles can be prevented from entering the first flow channel 31 as much as possible, which causes a problem that the air bubbles cannot be discharged.

Specifically, the housing 2 may have a communication port 25, and the exhaust mechanism 4 communicates with the second flow passage through the communication port 25. The exhaust mechanism 4 can also be communicated with the liquid inlet 21 through a second flow channel, an annular space is formed between the outer side wall of the flow guide part 3 and the inner side wall of the shell 2, and the second flow channel comprises an annular space. A second flow passage is formed from the liquid inlet 21 of the housing through the annular space to the communication port 25. The bubble catching means 5 is at least partially located in the annular space such that the fluid flowing in from the liquid inlet 21 passes through the bubble catching means 5 and enters the first flow channel 31. When the fluid needs to pass through the bubble catching mechanism 5 in the annular space at the upstream of the inlet of the first flow passage 31, the bubbles in the fluid are caught in time, and the trapped bubbles can enter the exhaust mechanism 4 through the second flow passage and then be exhausted to the outside of the shell 2 through the exhaust mechanism 4, so that the possibility of the bubbles entering the first flow passage 31 is reduced. When the pressure of the gas in the exhaust mechanism 4 exceeds a preset pressure after the bubbles enter the exhaust mechanism 4, the exhaust mechanism 4 is opened to exhaust the gas in the exhaust mechanism 4.

As a practical matter, the bubble catching means 5 may be wrapped around the perimeter of the baffle 3, as shown in fig. 1. The bubble catching mechanism 5 may be located in each circumferential angle of the annular space, so that the fluid flowing into the inlet of the flow guide member 3 can be fully contacted with the bubble catching mechanism 5 in the annular space, so as to improve the contact degree between the fluid flowing from the liquid inlet 21 and the bubble catching mechanism 5, and further improve the performance of the bubble catching mechanism 5 for catching bubbles.

As a possibility, the bubble catching means 5 may be located at least partly in the annular space between the inlet of the first flow channel 31 and the loading port 21, as shown in fig. 1. With the above structure, the fluid flowing from the liquid inlet 21 can contact the bubble catching mechanism 5 in the annular space, so that the bubble catching mechanism 5 catches and collects bubbles in the fluid in the annular space. Further, the bubble catching means 5 is at least partially located in the annular space in a region where the shortest flow path is formed between the inlet of the first flow path 31 and the liquid inlet 21. The larger part of the fluid flowing from the liquid inlet 21 of the housing 2 enters the inlet of the first flow channel 31 through the partial area between the inlet of the first flow channel 31 and the liquid inlet 21, so that the percentage of the fluid capturing bubbles by the bubble capturing mechanism 5 to the total amount of the fluid can be effectively increased, and the utilization rate of the bubble capturing mechanism 5 can be increased. For example, the flow guide 3 may be tubular and extend in the axial direction of the pump device, in which case the area of the annular space between the inlet of the first flow channel 31 and the liquid inlet 21, which forms the shortest flow channel, is the annular space below the flow guide 3. Further, the axis of the flow guide 3 and the axis of the pump device may be arranged coaxially.

In a specific embodiment, as shown in fig. 2 and 3, the bubble catching mechanism 5 may include a net body, and the catching of bubbles in the fluid is achieved through the net body structure. The net body can be arranged on the outer side wall of the flow guide part 3, so that the net body is installed and fixed. The net body can also be arranged on the flow guide part 3 in any other fixed connection mode, and can also be directly integrated with the flow guide part 3. The mesh body may extend in the radial direction of the flow guide 3 and/or in the axial direction of the flow guide 3, thereby increasing the area of the mesh body. For example, the net body may be in a sheet shape, in this case, the net body may be multiple, and the multiple net bodies are arranged around the circumferential direction of the flow guide member 3, so that the area of the net body may also be increased by the above manner. In other possible embodiments, the mesh body may also take various other forms, such as a dough form, a wire mesh form, and so on.

As a possibility, the axis of the pump device may extend substantially in a horizontal direction. The exhaust mechanism 4 and the communication port 25 are located at an upper portion of the housing 2. The above configuration can facilitate the entry of the bubbles captured by the bubble-capturing mechanism 5 into the air discharge mechanism 4 through the communication port 25 by buoyancy. Further, when water conservancy diversion spare 3 is the tubulose, and it extends along pump unit's axis direction, inlet 21 can be located the lower part of casing 2, and inlet 21 is towards water conservancy diversion spare 3, can be divided into the stranded by water conservancy diversion spare 3 when the fluid that inlet 21 flowed in like this upwards flows, and some fluid flows to the import of water conservancy diversion spare 3 through the space of water conservancy diversion spare 3 below, and other some fluid then can be comparatively abundant flow to the space of water conservancy diversion spare 3 top in, flow into the import of water conservancy diversion spare 3 again at last. The bubble catching mechanism 5 in the space above the flow guide member 3 can be fully utilized by the above mode so as to catch the bubbles in the fluid and improve the utilization rate of the bubble catching mechanism 5.

There is also provided in the present application a gas water heating apparatus, which may include: a heating unit for heating a fluid flowing therethrough; a pump device as in any above that can be in communication with a heating unit. The pump device is used for driving the fluid heated by the heating unit, so that the fluid flows out to the heating pipeline for heating of a user, and then flows back to the heating unit and the pump device, and the circulation is carried out, and the discharged fluid can also heat water in the domestic water pipeline through the heat exchange device. When fluid in the gas hot water device flows through the pump device, the pump device can catch and discharge bubbles in the gas hot water device, so that the flow of the heating pipeline is prevented from being reduced, and the heating load of the heating pipeline is reduced. The pump device captures and discharges bubbles in the fluid when the fluid flows through the pump device, so that the water heater can timely, efficiently and fully discharge the bubbles in the heating pipeline.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of 8230comprises the elements, components or steps identified and other elements, components or steps which do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional. A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are disclosed as above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A pump apparatus, characterized in that the pump apparatus comprises:

an impeller mechanism disposed within the second chamber;

2. The pump apparatus of claim 1, further comprising:

3. The pump apparatus according to claim 1, wherein the other end of the flow guide is an inlet of the first flow passage, and a gap is provided at least partially between the other end of the flow guide and an inner side wall of the housing.

4. The apparatus of claim 1, wherein the venting mechanism is in communication with the inlet port via a second flow passage, an annular space being formed between an outer sidewall of the baffle and an inner sidewall of the housing, the second flow passage comprising the annular space.

5. The pump apparatus according to claim 4, wherein the bubble trap mechanism is at least partially located in the annular space such that fluid flowing from the fluid inlet passes through the bubble trap mechanism and enters the first fluid passage.

6. The pump device of claim 5, wherein the bubble trap mechanism is wrapped around the circumference of the baffle.

7. A pump arrangement according to claim 5, wherein the bubble trap means is located at least partially in the annular space between the inlet of the first flow passage and the liquid inlet.

8. The pump apparatus according to claim 4, wherein the bubble-trapping mechanism comprises a mesh body.

9. The pump device of claim 8, wherein the mesh body is disposed on an outer sidewall of the baffle.

10. The pump device of claim 9, wherein the mesh body and the baffle are of a unitary construction.

11. A pump arrangement according to claim 1, wherein the flow guide is tubular and extends in the axial direction of the pump arrangement.

12. The pump apparatus of claim 11, further comprising:

13. The pump apparatus according to claim 4, wherein the housing has a communication port at the housing, the exhaust mechanism communicating with the second flow passage through the communication port;

when the pressure of the gas in the exhaust mechanism exceeds a preset pressure, the exhaust mechanism is opened to exhaust the gas in the exhaust mechanism.

14. A pump arrangement according to claim 13, wherein the axis of the pump arrangement extends generally horizontally; the exhaust mechanism and the communication port are located at an upper portion of the housing.

15. A gas-fired water heating apparatus, characterized in that it comprises: a heating unit for heating a fluid flowing therethrough; a pump device as claimed in any one of claims 1 to 14 communicable with said heating unit.