CN101936303B - Cooling circulating pump with small thin-wall cavity - Google Patents
Cooling circulating pump with small thin-wall cavity Download PDFInfo
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- CN101936303B CN101936303B CN 201010288612 CN201010288612A CN101936303B CN 101936303 B CN101936303 B CN 101936303B CN 201010288612 CN201010288612 CN 201010288612 CN 201010288612 A CN201010288612 A CN 201010288612A CN 101936303 B CN101936303 B CN 101936303B
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Abstract
The invention discloses a cooling circulating pump with a small thin-wall cavity. The pump comprises a pump head and a motor in which a rotor component is arranged, wherein the pump head comprises a pump head cover and a pump head thin-wall cavity; and the pump head thin-wall cavity is made of a stainless steel material. The overall reject ratio of a circulating pump product with the small thin-wall cavity made of the structure of the invention can be controlled to be below 3 percent; moreover, compared with a copper material, the stainless steel material has lower manufacturing cost; and compared with a cast iron material, the stainless steel material has the advantages of leakage resistance, rust resistance, high intensity and greatly-prolonged service life. Therefore, the pump has good market popularization prospect.
Description
Technical field
The present invention relates to a kind of pump body structure, particularly a kind of pump housing thin walled cavity structure for cooling recirculation system.
Background technique
The used part machinery of current people can produce a large amount of heats when work, can produce the phenomenon of excess Temperature when operating for fear of some device wherein, various cooling systems generally all can be set in these machinery dispel the heat.Circulating cooling system is wherein to use one type more widely.Circulating cooling system is generally configured to the loop of a sealing, the cooling liquid that circulates is equipped with in the inside in loop, amount of heat is taken away in the hot-zone that these cooling liquids are flowed through in the equipment, and then heat is discharged when the cooling equipment, wherein recycle pump is to realize the requisite constituent element of said process.
Recycle pump generally is comprised of motor and pump head, is fixed connection by fastening screw between motor end cap and the pump head.The making material of recycle pump pump head is nothing more than 3 kinds at present: copper, plastic cement and cast iron, wherein plastic material has that intensity or reliability are not enough, the easy shortcoming such as aging, and cast iron has the problem of getting rusty, iron rust can make circulating water not reach clean requirement even result in blockage, and therefore tradition is widely used the pump head structure that copper product is made.Copper pump head is generally all made by microcast process, makes first the formwork of pump head during production, pours in the formwork after again will copper melting, and behind the copper cooling curing formwork is broken into pieces and obtains module.Because pump head inside need to arrange chamber, impeller etc., therefore the thickness of pump head sidewall can only be controlled in the minimum scope, especially need meet compact specific (special) requirements at many occasion recycle pumps, the wall thickness of cavity wall thickness or screw hole and chamber must be less than below the 2mm, and this has brought great difficulty for the application of microcast process.
Practical production experience shows, when utilizing microcast process to make copper pump head, defective easily appears on the thin-walled of pump head, the as easy as rolling off a log hole that occurs, this is because the copper thermal conductivity is high, rapid heat dissipation, easily condense, copper liquid pour into the formwork speed per hour spend then can occur slowly flowing inadequate, the part position lacks the phenomenon of copper liquid, and the thin-walled place more so, excessive velocities then can produce more bubble when copper liquid poured into formwork, just can produce fatal impact when these bubbles come across the thin-walled position, in case produce hole, the phenomenons such as leakage just can appear in pump head, therefore, the making of copper pump head is higher to technological requirement.But just present, general manufacturer also fails to satisfy above-mentioned requirements, and this causes the reject ratio of pump head product high, and particularly the production reject ratio of small-sized thin walled cavity recycle pump pump head even up to about 20%-40% causes great cost waste.
Summary of the invention
For addressing the above problem, the invention provides a kind of coolant circulation pump that reject ratio is low, be specially adapted to make small-sized thin walled cavity recycle pump body structure of manufacturing.
The present invention is that the technological scheme that its problem of solution adopts is:
A kind of cooling circulating pump with small thin-wall cavity, comprise pump head and the inner motor that is provided with rotor assembly, described pump head comprises pump head lid and pump head thin walled cavity, one end and the pump head cover buckle of pump head thin walled cavity are closed, the other end of pump head thin walled cavity is connected with motor, be provided with chamber between the pump head lid of pump head and the pump head thin walled cavity, be provided with in the chamber by rotor assembly and drive the impeller that rotates, pump head is provided with liquid entering hole and the liquid outlet that is communicated with respectively with described chamber, be distributed with some threaded stud holes on the outer wall of pump head thin walled cavity, pump head covers the position corresponding with threaded stud hole and is provided with screw, described pump head is fixed on the motor by the screw that is connected in screw and the threaded stud hole, and described pump head thin walled cavity is made by stainless steel material.
As preferred embodiment, described pump head lid
AlsoMade by stainless steel material.
As preferred embodiment, described stainless steel material is that model is 301,304,309 stainless steel material.
The invention has the beneficial effects as follows: pump head thin walled cavity of the present invention is partly made by stainless steel material, the thermal conductivity of stainless steel material is significantly smaller than copper product (thermal conductivity of copper product is about 10-20 times of stainless steel material), in addition, the liquid fluidity of stainless steel material, surface tension and stability of material etc. are also different from copper product, when in the formwork that the stainless steel liquation slowly is circulated into the pump head thin walled cavity, the stainless steel liquation also has good flowability within long period of time, this can be under guaranteeing the prerequisite do not produce bubble or to produce the minute quantity bubble so that each position in the formwork can be filled up by liquation, thereby avoid producing hole on the pump head thin walled cavity, particularly the position around its threaded stud hole also can form solid thin walled structures.Actual tests shows, utilize the made small-sized thin walled cavity recycle pump product of structure of the present invention, its whole reject ratio can be controlled in below 3%, in addition, compare with copper product, the fabricating cost of stainless steel material is lower, compare with cast iron materials, stainless steel material has advantages of leakproof, anti-gets rusty, intensity is high, and greatly increase its working life, so the present invention has good marketing prospect.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is a kind of embodiment's of pump head of the present invention structural representation.
Embodiment
See figures.1.and.2, a kind of coolant circulation pump of the present invention comprises pump head 1 and the inner motor 2 that is provided with rotor assembly, and the shape of pump head 1 is different in different products, two mouthfuls of positions of liquid in-out are in same direction or at different direction, 90 degree or 180 degree of being separated by.Described pump head 1 comprises pump head lid 3 and pump head thin walled cavity 4, one end of pump head thin walled cavity 4 and pump head lid 3 fasten, the other end of pump head thin walled cavity 4 is connected with motor 2, be provided with chamber between the pump head lid 3 of pump head 1 and the pump head thin walled cavity 4, be provided with in the chamber by rotor assembly and drive the impeller that rotates.Pump head 1 is provided with liquid entering hole 5 and the liquid outlet 6 that is communicated with respectively with described chamber, liquid entering hole 5, liquid outlet 6 are arranged on pump head lid 3 or the pump head thin walled cavity 4, wherein the liquid entering hole 5 of embodiment shown in Fig. 1 and liquid outlet 6 all are arranged on the pump head thin walled cavity 4, and the liquid entering hole 5 of embodiment shown in Fig. 2 is arranged on the pump head lid 3, and 6 of liquid outlets are arranged on the pump head thin walled cavity 4.Be distributed with some threaded stud holes 7 on the outer wall of pump head thin walled cavity 4, this threaded stud hole 7 is preferred to adopt uniform mode to distribute, and quantity can be 3,4 etc.Position corresponding with threaded stud hole 7 on the pump head lid 3 is provided with screw 8, and described pump head 1 is fixed on the motor 2 by the screws 9 that are connected in screw 8 and the threaded stud hole 7.Can find out from above structure, around the above-mentioned threaded stud hole 7 thickness of thin-walled particularly the thickness between threaded stud hole 7 and the chamber in the overall structure of pump head 1, be the thinnest, the as easy as rolling off a log hole that occurs of this part produces leakage.
In actual product, being used in chamber in the pump head 1 and the motor 2 placing between the chambers of rotor assembly is airtight isolation, only has the rotating shaft of rotor assembly from passing between the two, be connected with impeller, the cooling liquid of the chamber in the pump head 1 of guaranteeing to flow through can not enter in the chamber in the motor 2, avoids rotor assembly produced and destroys.During recycle pump work, rotor assembly energising work, it rotates by the rotating shaft impeller, so that the cooling liquid (can be water, wet goods) that enters from liquid entering hole 5 flows out from liquid outlet 6 under the effect of impeller again.
Make and the high reject ratio problem that causes for the pump head that solves traditional recycle pump and pump head thin walled cavity 4 adopt copper products, pump head thin walled cavity 4 of the present invention is made by stainless steel material, and preferably adopting model is 301,304,309 stainless steel material.Because the thermal conductivity of stainless steel material is significantly smaller than copper product (thermal conductivity of copper product is about 10-20 times of stainless steel material), in addition, the liquid fluidity of stainless steel material, surface tension and stability of material etc. are also different from copper product, when in the formwork that the stainless steel liquation slowly is circulated into the pump head thin walled cavity, the stainless steel liquation also has good flowability within long period of time, this can be under guaranteeing the prerequisite do not produce bubble or to produce the minute quantity bubble so that each position in the formwork can be filled up by liquation, thereby avoid producing hole on the pump head thin walled cavity, particularly its threaded stud hole 7, position on it around set liquid entering hole or the liquid outlet and the position between threaded stud hole 7 and the chamber also can form solid thin walled structures.Certainly, as preferred embodiment, pump head lid 3 is also made by stainless steel material, same preferred employing model is 301,304,309 stainless steel material, this guarantees that pump head covers 3 and also can avoid producing various holes, guarantees that particularly the sidewall around screw set above it 8, liquid entering hole or the liquid outlet can form solid thin walled structures.
Actual tests shows, utilizes the made recycle pump product of structure of the present invention, even small-sized thin walled cavity recycle pump product, its whole reject ratio also can be controlled in below 3%.
Claims (3)
1. cooling circulating pump with small thin-wall cavity, comprise pump head (1) and the inner motor (2) that is provided with rotor assembly, described pump head (1) comprises pump head lid (3) and pump head thin walled cavity (4), one end of pump head thin walled cavity (4) and pump head lid (3) fasten, the other end of pump head thin walled cavity (4) is connected with motor (2), be provided with chamber between the pump head lid (3) of pump head (1) and the pump head thin walled cavity (4), be provided with in the chamber by rotor assembly and drive the impeller that rotates, pump head (1) is provided with liquid entering hole (5) and the liquid outlet (6) that is communicated with respectively with described chamber, be distributed with some threaded stud holes (7) on the outer wall of pump head thin walled cavity (4), the upper position corresponding with threaded stud hole (7) of pump head lid (3) is provided with screw (8), described pump head (1) is fixed on the motor (2) by the screw (9) that is connected in screw (8) and the threaded stud hole (7), it is characterized in that described pump head thin walled cavity (4) pours in the formwork by after the stainless steel material fusing, behind the stainless steel material cooling curing, formwork broken into pieces and obtain.
2. a kind of cooling circulating pump with small thin-wall cavity according to claim 1 is characterized in that described pump head covers (3) and also made by stainless steel material.
3. a kind of cooling circulating pump with small thin-wall cavity according to claim 1 and 2 is characterized in that described stainless steel material is that model is 301,304,309 stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288612 CN101936303B (en) | 2010-09-21 | 2010-09-21 | Cooling circulating pump with small thin-wall cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288612 CN101936303B (en) | 2010-09-21 | 2010-09-21 | Cooling circulating pump with small thin-wall cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936303A CN101936303A (en) | 2011-01-05 |
| CN101936303B true CN101936303B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010288612 Active CN101936303B (en) | 2010-09-21 | 2010-09-21 | Cooling circulating pump with small thin-wall cavity |
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| Country | Link |
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| CN (1) | CN101936303B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526940A (en) * | 1975-12-18 | 1978-10-04 | British Gas Corp | Centrifugal liquid pumps |
| CN2453164Y (en) * | 2000-11-27 | 2001-10-10 | 元欣机械有限公司 | Multiple system circulation pump |
| CN2568856Y (en) * | 2002-09-05 | 2003-08-27 | 利隆电机厂有限公司 | Shell of water pump |
| CN201433901Y (en) * | 2009-03-16 | 2010-03-31 | 广东凌霄泵业股份有限公司 | Stainless steel pump with hydraulic molding technique |
-
2010
- 2010-09-21 CN CN 201010288612 patent/CN101936303B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526940A (en) * | 1975-12-18 | 1978-10-04 | British Gas Corp | Centrifugal liquid pumps |
| CN2453164Y (en) * | 2000-11-27 | 2001-10-10 | 元欣机械有限公司 | Multiple system circulation pump |
| CN2568856Y (en) * | 2002-09-05 | 2003-08-27 | 利隆电机厂有限公司 | Shell of water pump |
| CN201433901Y (en) * | 2009-03-16 | 2010-03-31 | 广东凌霄泵业股份有限公司 | Stainless steel pump with hydraulic molding technique |
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| Publication number | Publication date |
|---|---|
| CN101936303A (en) | 2011-01-05 |
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