CN205592199U - Novel vertical multistage centrifugal pump balance drum structure - Google Patents
Novel vertical multistage centrifugal pump balance drum structure Download PDFInfo
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- CN205592199U CN205592199U CN201620378786.5U CN201620378786U CN205592199U CN 205592199 U CN205592199 U CN 205592199U CN 201620378786 U CN201620378786 U CN 201620378786U CN 205592199 U CN205592199 U CN 205592199U
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- outer ring
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Abstract
The utility model discloses a novel vertical multistage centrifugal pump balance drum structure, it includes first body frame, the recess, the outer lane, second body frame, the cylindric lock, the balance drum body, the inner circle, third body frame, protruding key, the structure hole, the temperature device, first body frame covers on the outer lane surface, the recess is located the inside edge in outer lane, the outer lane is located between first body frame and the second body frame, second body frame covers on the inner circle surface, the cylindric lock is fixed in on the second body frame, outer lane and inner circle are connected respectively to the cylindric lock both sides simultaneously, the balance drum body is installed on second body frame, the inner circle is located between second body frame and the third body frame, protruding location of the key is on the left of third body frame, the structure hole site is in the inside of inner circle, the temperature device is installed in the structure downtheholely. The utility model discloses can reduce the volumetric loss of pump, put forward high pressure heater worker's reliability, and these novel structure wearing and tearing are few, longe -lived.
Description
Technical field
This utility model relates to a kind of pump configuration, particularly relates to a kind of novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure.
Background technology
At the suction inlet of single suction receded disk impeller, asymmetric due to impeller front and rear cover plate, the operation process of pump can produce an axial force pointing to suction inlet.Seeming in multistage pump of this axial force is very big, and therefore the axial force of balanced multistage pump is an extremely important design procedure.Use balancing drum balancing axial thrust based on principles above existing DL multistage pump, after being contained in impeller, rotate with rotor, balancing drum outer fringe surface and water outlet intersegmental formation radial clearance.Forming pressure reduction between the back cavity and the balance cylinder of suction inlet of impeller, equilibrant points to the opposite direction of suction inlet, to realize the normal operation of pump.Existing structure has the disadvantage in that
One, the leakage rate of balancing drum is big so that the volumetric loss of pump strengthens, and reduces operational efficiency.
Two, the radial clearance value that design requires is too small, is difficult to, axial force balance poor effect, alters, serious wear outside rotor in mechanical processing process.
Three, when pumping medium and being corrosive, use stainless steel to be easily engaged, increase fault rate.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure, and it can reduce the volumetric loss of pump, improves the reliability of processing, and the abrasion of this new structure is few, and the life-span is long.
This utility model solves above-mentioned technical problem by following technical proposals: a kind of novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure, it is characterized in that, it includes integrated frame, groove, outer ring, second body frame, straight pin, balancing drum body, inner ring, 3rd body frame, convex key, structure hole, temperature device, integrated frame covers at outer peripheral surface, groove is positioned at the edge within outer ring, outer ring is between integrated frame and the second body frame, second body frame covers in inner peripheral surface, straight pin is fixed on the second body frame, straight pin both sides connect outer ring and inner ring respectively simultaneously, balancing drum body is installed on the second body frame, inner ring is between the second body frame and the 3rd body frame, convex key mapping is on the left of the 3rd body frame, structure hole is positioned at the inside of inner ring, temperature device is installed in structure hole.
Preferably, described integrated frame, the second body frame, the 3rd body frame all use steel alloy to make.
Preferably, it is provided with gap between described inner ring and outer ring.
Preferably, described temperature device is provided with temperature detector and actuator.
Positive progressive effect of the present utility model is: this utility model can reduce the volumetric loss of pump, improves the reliability of processing, and the abrasion of this new structure is few, and the life-span is long, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum.
Detailed description of the invention
Provide this utility model preferred embodiment below in conjunction with the accompanying drawings, to describe the technical solution of the utility model in detail.
As shown in Figure 1, this utility model novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure includes integrated frame 1, groove 2, outer ring 3, second body frame 4, straight pin 5, balancing drum body 6, inner ring 7, 3rd body frame 8, convex key 9, structure hole 10, temperature device 11, integrated frame 1 covers on surface, outer ring 3, groove 2 is positioned at the edge within outer ring 3, outer ring 3 is between integrated frame 1 and the second body frame 4, second body frame 4 covers on inner ring 7 surface, straight pin 5 is fixed on the second body frame 4, both sides connect outer ring 3 and inner ring 7 respectively simultaneously, balancing drum body 6 is installed on the second body frame 4, inner ring 7 is between the second body frame 4 and the 3rd body frame 8, convex key 9 is positioned on the left of the 3rd body frame 8, structure hole 10 is positioned at the inside of inner ring 7, temperature device 11 is installed in structure hole 10.
Integrated frame, the second body frame, the 3rd body frame are primary structure, support overall framework；Groove provides operating basis, and reaches the dimensional requirement of precision-fit；Outer ring is formed to spend with groove more and coordinates, and plays a supportive role；Straight pin mainly fixes outer ring and inner ring；Balancing drum Main Function is balancing axial thrust, it is to avoid produce bending shaft during rotation；Inner ring and the second body frame tight fit, therewith operate；It is circumferentially fixed to transmit moment of torsion that convex key is mainly used as between part, also can realize the movement of part；Structure hole is beneficial to the rapid discharge of internal temperature；Temperature device can carry out certain absorption for internal heat.
Described integrated frame, the second body frame, the 3rd body frame all use steel alloy to make, it is ensured that the ruggedness of novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure.
It is provided with gap between described inner ring and outer ring, it is to avoid impact each other, causes the accident.
Described temperature device is provided with temperature detector and actuator, and temperature detector can know the temperature value of current internal, and actuator then can carry out the regulation of little scope to internal temperature.
Analyze the flow behavior of liquid, at the outside of balancing drum processing some and the groove of length, be equivalent to the function of a fixed blade, thus change the flow regime of gap location, increase flow resistance, reduce leakage rate, the volumetric loss of pump can be reduced.Using Novel balance drum on the premise of meeting axial force requirement, it is contemplated that actual machining (especially prominent during batch production) precision, straight pin decreases grinding of balancing drum, increases service life.During for requiring to use rustless steel flow passage components, it also avoid the scuffing occurred because of the impact of material.
Particular embodiments described above; to of the present utility model solving the technical problem that, technical scheme and beneficial effect further described; it is it should be understood that; the foregoing is only specific embodiment of the utility model; it is not limited to this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (4)
1. a novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure, it is characterized in that, it includes integrated frame, groove, outer ring, second body frame, straight pin, balancing drum body, inner ring, 3rd body frame, convex key, structure hole, temperature device, integrated frame covers at outer peripheral surface, groove is positioned at the edge within outer ring, outer ring is between integrated frame and the second body frame, second body frame covers in inner peripheral surface, straight pin is fixed on the second body frame, straight pin both sides connect outer ring and inner ring respectively simultaneously, balancing drum body is installed on the second body frame, inner ring is between the second body frame and the 3rd body frame, convex key mapping is on the left of the 3rd body frame, structure hole is positioned at the inside of inner ring, temperature device is installed in structure hole.
2. novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure as claimed in claim 1, it is characterised in that described integrated frame, the second body frame, the 3rd body frame all use steel alloy to make.
3. novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure as claimed in claim 1, it is characterised in that be provided with gap between described inner ring and outer ring.
4. novel vertical centrifugal multistage pump multiple centrifugal pump balancing drum structure as claimed in claim 1, it is characterised in that described temperature device is provided with temperature detector and actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378786.5U CN205592199U (en) | 2016-04-30 | 2016-04-30 | Novel vertical multistage centrifugal pump balance drum structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378786.5U CN205592199U (en) | 2016-04-30 | 2016-04-30 | Novel vertical multistage centrifugal pump balance drum structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205592199U true CN205592199U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620378786.5U Active CN205592199U (en) | 2016-04-30 | 2016-04-30 | Novel vertical multistage centrifugal pump balance drum structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205592199U (en) |
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2016
- 2016-04-30 CN CN201620378786.5U patent/CN205592199U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 812, 3128 Huyi Highway, Jiading District, Shanghai 201800 Patentee after: Shanghai Rui Chen environmental protection Polytron Technologies Inc Address before: Room 812, 3128 Huyi Highway, Jiading District, Shanghai 201800 Patentee before: Shanghai Richen Environmental Technology Co., Ltd. |