CN204140494U - A kind of frost crack prevention water pump and air-source water heater - Google Patents
A kind of frost crack prevention water pump and air-source water heater Download PDFInfo
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- CN204140494U CN204140494U CN201420662786.9U CN201420662786U CN204140494U CN 204140494 U CN204140494 U CN 204140494U CN 201420662786 U CN201420662786 U CN 201420662786U CN 204140494 U CN204140494 U CN 204140494U
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- water pump
- spiral case
- case cavity
- crack prevention
- frost crack
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Abstract
The utility model discloses a kind of frost crack prevention water pump, the pump housing comprising motor and be connected with motor, the described pump housing comprises spiral case cavity and the inlet pipeline that is communicated with described spiral case cavity and rising pipe, have at least an inside that cold resistant rubber layer is set in described spiral case cavity, inlet pipeline and described rising pipe, and after described cold resistant rubber layer pressurized, the total measurement (volume) of described spiral case cavity, inlet pipeline and described rising pipe at least expands 0.1 times.Even if be full of water in spiral case cavity, inlet pipeline and rising pipe in this frost crack prevention water pump, so also can be received after water freezing, thus effectively avoid pump housing bursting by freezing, and then reduce the cost of user's operation and maintenance water pump.The invention also discloses a kind of air-source water heater with above-mentioned frost crack prevention water pump.
Description
Technical field
The utility model relates to water pump manufacture technology field, more particularly, relates to a kind of frost crack prevention water pump.
Background technique
Water pump mainly comprises power section and pump body portion, and wherein power section provides rotating power for pump body portion, and under normal circumstances, power section is motor, and pump body portion comprises impeller, spiral case cavity and the water intake communicated with spiral case cavity and water outlet.
As everyone knows, the density of ice is less than the density of water, thus the volume of water after freezing shared by it of certain mass can increase, can determine according to the ratio between the density of ice and the density of water, water volume after freezing of certain mass is 1.1 times of original water volume, can determine thus, when ambient temperature is below 0 DEG C, if spiral case cavity and the water-filled words of water intake and water outlet position, great destruction will be caused to pump body portion, spiral case cavity, water intake and water outlet position can crack by the ice after volume increases, and cause scrapping of water pump.
When this just requires in the winter time, water pump user is in time by clean for the water discharge in the pump housing, but in the process of reality use, user easily forget discharge the pump housing in water or cannot by the water emptying in the pump housing, this will cause the bursting by freezing of the pump housing, the user cost of adding users.
Therefore, how can effectively avoid pump housing bursting by freezing, the cost reducing user's operation and maintenance water pump is the technical problem that current those skilled in the art need solution badly.
Model utility content
In view of this, one of the purpose of this utility model is to provide a kind of frost crack prevention water pump, can effectively avoid pump housing bursting by freezing by the structure of water pump self, reduces the cost of user's operation and maintenance water pump.
Another object of the present utility model is to provide a kind of air-source water heater with above-mentioned frost crack prevention water pump.
For achieving the above object, the utility model provides following technological scheme:
A kind of frost crack prevention water pump, the pump housing comprising motor and be connected with motor, the described pump housing comprises spiral case cavity and the inlet pipeline that is communicated with described spiral case cavity and rising pipe, it is characterized in that, have at least an inside that cold resistant rubber layer is set in described spiral case cavity, inlet pipeline and described rising pipe, and after described cold resistant rubber layer pressurized, the total measurement (volume) of described spiral case cavity, inlet pipeline and described rising pipe at least expands 0.1 times.
Preferably, described cold resistant rubber layer is arranged on the inside of described spiral case cavity.
Preferably, described cold resistant rubber layer is provided with in described spiral case cavity, described inlet pipeline and described rising pipe.
Preferably, described frost crack prevention water pump is canned motorpump.
Preferably, described cold resistant rubber layer is layer of silica gel.
Air-source water heater disclosed in the utility model, comprises water pump, and described water pump is frost crack prevention water pump disclosed in above-mentioned any one.
As can be seen from above technological scheme, in frost crack prevention water pump disclosed in the utility model, have at least an inside that cold resistant rubber layer is set in the spiral case cavity of the pump housing, inlet pipeline and rising pipe, and after cold resistant rubber layer pressurized, the total measurement (volume) of spiral case cavity, inlet pipeline and outlet pipe at least expands 0.1 times of former total measurement (volume).
The maximum volume retaining the water yield in the pump housing is cold resistant rubber spiral case cavity in a free state, the total measurement (volume) of inlet pipeline and rising pipe, therefore once maximum volume shared after water freezing should be 1.1 times of former total measurement (volume), due to spiral case cavity, an inside is had at least to be provided with cold resistant rubber layer in inlet pipeline and rising pipe, and after cold resistant rubber layer is squeezed, spiral case cavity, the total measurement (volume) of inlet pipeline and rising pipe at least expands 0.1 times of former total measurement (volume), namely be at least 1.1 times of former total measurement (volume), thus the ice of being formed by resident water can be held completely, thus effectively avoid pump housing bursting by freezing, and then reduce the cost of user's operation and maintenance water pump.
Air-source water heater disclosed in the utility model is owing to comprising above-mentioned frost crack prevention water pump, and thus it has the corresponding technological merit of above-mentioned frost crack prevention water pump concurrently, no longer repeats herein to this.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The water pump middle pump body internal structure schematic diagram of Fig. 1 for providing in the utility model embodiment;
The water pump middle pump body sectional structure schematic diagram of Fig. 2 for providing in the utility model embodiment.
Wherein,
1 is motor, and 2 is spiral case cavity, and 3 is inlet pipeline, and 4 is rising pipe, and 5 is cold resistant rubber layer.
Embodiment
One of core of the present utility model is to provide a kind of frost crack prevention water pump, can effectively avoid pump housing bursting by freezing by the structure of water pump self, reduces the cost of user's operation and maintenance water pump.
Another core of the present utility model is to provide a kind of air-source water heater with above-mentioned frost crack prevention water pump.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In frost crack prevention water pump disclosed in the utility model, the pump housing comprising motor 1 and be connected with motor 1, the pump housing comprises spiral case cavity 2 and the inlet pipeline 3 that is communicated with spiral case cavity 2 and rising pipe 4, and at least one inside is provided with cold resistant rubber layer 5 in spiral case cavity 2, inlet pipeline 3 and rising pipe 4, after cold resistant rubber layer 5 pressurized, the total measurement (volume) of spiral case cavity 2, inlet pipeline 3 and rising pipe 4 at least expands 0.1 times.
Following content makes specific explanations to 0.1 times, supposes cold resistant rubber layer 5 in a free state, and the total measurement (volume) of spiral case cavity 2, inlet pipeline 3 and rising pipe 4 is V
1, cold resistant rubber layer 5 is when pressured state, and the total measurement (volume) of spiral case cavity 2, inlet pipeline 3 and rising pipe 4 becomes V
2, so V
2/ V
1>=1.1, that is, cold resistant rubber layer 5 is after pressurized, and the total measurement (volume) of spiral case cavity 2, inlet pipeline 3 and rising pipe 4 at least expands 0.1 times of former total measurement (volume).
It will be understood by those skilled in the art that, the maximum volume retaining the water yield in the pump housing is cold resistant rubber layer 5 spiral case cavity 2 in a free state, the total measurement (volume) of inlet pipeline 3 and rising pipe 4, therefore once maximum volume shared after water freezing should be 1.1 times of former total measurement (volume), due to spiral case cavity 2, an inside is had at least to be provided with cold resistant rubber layer 5 in inlet pipeline 3 and rising pipe 4, and after cold resistant rubber layer 5 is squeezed, spiral case cavity 2, the total measurement (volume) of inlet pipeline 3 and rising pipe 4 at least expands 0.1 times of former total measurement (volume), namely be at least 1.1 times of former total measurement (volume), thus the ice of being formed by resident water can be held completely, thus effectively avoid pump housing bursting by freezing, and then reduce the cost of user's operation and maintenance water pump.
In spiral case cavity 2, inlet pipeline 3 and rising pipe 4, all cold resistant rubber layer 5 can be set, cold resistant rubber layer 5 can adopt the low temperature resistant gluing internal surface being attached to spiral case cavity 2, inlet pipeline 3 and rising pipe 4, or adopt other modes to be fixed on the internal surface of above-mentioned parts, such as screw connection etc.
The interior shape of inlet pipeline 3 and rising pipe 4 is usually comparatively complicated, comparatively speaking, the interior shape of spiral case cavity 2 is comparatively regular, the frost crack prevention water pump for this reason provided in the present embodiment, only in spiral case cavity 2, be provided with cold resistant rubber layer 5, to reduce the manufacture difficulty of water pump, certainly, as fruit instant manufacture, only cold resistant rubber layer 5 can also be set in the internal surface of inlet pipeline 3 or rising pipe 4, as long as ensure that cold resistant rubber layer 5 is when pressurized, spiral case cavity 2, the total measurement (volume) of inlet pipeline 3 and rising pipe 4 at least expands 0.1 times.
Frost crack prevention water pump disclosed in the utility model embodiment can be ordinary water pump or canned motorpump, and the Material selec-tion of cold resistant rubber layer 5 also has multiple, well known to a person skilled in the art and be, silica gel or be called silicone rubber, it has excellent resistance to low temperature, it at subzero about 100 DEG C, can tolerate the ambient temperature of each department in winter to the tolerance degree of low temperature completely, thus adopts low temperature resistant silica gel to be feasible as cold resistant rubber layer 5.
PAUR also can use in the environment of subzero 40 DEG C, EU even can use under the environment of subzero 70 DEG C, and its oil resistance is also comparatively excellent, therefore adopt PAUR and EU as the frost crack prevention water pump of cold resistant rubber layer 5 in the winter in most area, also can meet usage requirement.
Also disclose a kind of air-source water heater in the utility model simultaneously, comprise water pump, and this water pump is frost crack prevention water pump disclosed in above-mentioned any embodiment.
Owing to having the frost crack prevention water pump in above-described embodiment in this air-source water heater, thus this air-source water heater has corresponding technological merit in above-mentioned frost crack prevention water pump concurrently, no longer repeats in present specification to this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a frost crack prevention water pump, the pump housing comprising motor (1) and be connected with motor (1), the described pump housing comprises spiral case cavity (2) and the inlet pipeline (3) that is communicated with described spiral case cavity (2) and rising pipe (4), it is characterized in that, described spiral case cavity (2), have at least an inside that cold resistant rubber layer (5) is set in inlet pipeline (3) and described rising pipe (4), and after described cold resistant rubber layer (5) pressurized, described spiral case cavity (2), the total measurement (volume) of inlet pipeline (3) and described rising pipe (4) at least expands 0.1 times.
2. frost crack prevention water pump as claimed in claim 1, it is characterized in that, described cold resistant rubber layer (5) is arranged on the inside of described spiral case cavity (2).
3. frost crack prevention water pump as claimed in claim 1, is characterized in that, be provided with described cold resistant rubber layer (5) in described spiral case cavity (2), described inlet pipeline (3) and described rising pipe (4).
4. frost crack prevention water pump as claimed in claim 1, it is characterized in that, described frost crack prevention water pump is canned motorpump.
5. the frost crack prevention water pump as described in claim 1-4 any one, is characterized in that, described cold resistant rubber layer (5) is layer of silica gel.
6. an air-source water heater, comprises water pump, it is characterized in that, described water pump is the frost crack prevention water pump as described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662786.9U CN204140494U (en) | 2014-11-07 | 2014-11-07 | A kind of frost crack prevention water pump and air-source water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662786.9U CN204140494U (en) | 2014-11-07 | 2014-11-07 | A kind of frost crack prevention water pump and air-source water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140494U true CN204140494U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420662786.9U Expired - Fee Related CN204140494U (en) | 2014-11-07 | 2014-11-07 | A kind of frost crack prevention water pump and air-source water heater |
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|---|---|
| CN (1) | CN204140494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314879A (en) * | 2014-11-07 | 2015-01-28 | 珠海格力电器股份有限公司 | Frost crack preventing water pump and air energy water heater |
| CN108678943A (en) * | 2018-08-03 | 2018-10-19 | 台州市路桥高远日用金属制品厂 | A kind of frost crack proof device of water pump |
-
2014
- 2014-11-07 CN CN201420662786.9U patent/CN204140494U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314879A (en) * | 2014-11-07 | 2015-01-28 | 珠海格力电器股份有限公司 | Frost crack preventing water pump and air energy water heater |
| CN108678943A (en) * | 2018-08-03 | 2018-10-19 | 台州市路桥高远日用金属制品厂 | A kind of frost crack proof device of water pump |
| CN108678943B (en) * | 2018-08-03 | 2024-03-22 | 林立强 | Anti-frost crack device of water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20211107 |