CN108953155B - Cooling structure for front end cover and rear end cover of Roots pump - Google Patents
Cooling structure for front end cover and rear end cover of Roots pump Download PDFInfo
- Publication number
- CN108953155B CN108953155B CN201811109267.9A CN201811109267A CN108953155B CN 108953155 B CN108953155 B CN 108953155B CN 201811109267 A CN201811109267 A CN 201811109267A CN 108953155 B CN108953155 B CN 108953155B
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- China
- Prior art keywords
- cover
- cooling
- end cover
- cooling water
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 71
- 239000000498 cooling water Substances 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a cooling structure for front and rear end covers of a Roots pump, and relates to the technical field of Roots pumps. The invention comprises a front end cover arranged at one end of a pump body and a rear end cover arranged at the other end of the pump body, wherein the front end cover is provided with a front end cover inner cavity; an oil drain port is arranged at the bottom of the side wall of the inner cavity of the front end cover; the rear end cover is provided with a rear end cover inner cavity, and the bottom of the front end cover at the lower side of the oil drain port is provided with a first cooling water tank; a first cooling water outlet pipe is arranged on one side surface of the front end cover; a front cover water-cooling cover plate mounting plane is arranged on the end face of the first cooling water tank at the bottom of the front end cover; the front cover water-cooling cover plate is fixed on the front cover water-cooling cover plate mounting plane through screws; a first cooling water inlet is formed in one surface of the front cover water-cooling cover plate. According to the invention, the designed front end cover and the rear end cover are internally provided with the water storage cavity for cooling by one-step molding, so that the structural strength of the cooling pipeline is increased, and the problem that the cooling pipeline is easy to break by adopting the cooling pipeline in the prior art, so that equipment is damaged is solved.
Description
Technical Field
The invention belongs to the technical field of Roots pumps, and particularly relates to a cooling structure for front and rear end covers of a Roots pump.
Background
The Roots vacuum pump is a positive displacement vacuum pump in which two vane-shaped rotors which synchronously rotate in opposite directions are arranged in the pump, and fine gaps are arranged between the rotors and the inner wall of the pump shell and are not contacted with each other. In existing pumps, most of the use in the market has been cooling water coils to cool the oil in the oil chamber. Some manufacturers use concentrated water supply, the water pressure reaches more than 8 kg, and the pressure of the cooling coil is generally limited to 3-4 kg, so that the cooling water cannot be subjected to pressure after entering the cooling coil, and the coil is broken, so that lubricating oil is emulsified, and finally equipment is damaged.
Disclosure of Invention
The invention aims to provide a cooling structure of front and rear end covers of a Roots pump, wherein a water storage cavity for cooling is formed in the front end cover and the rear end cover through one-step molding, so that the structural strength of a cooling pipeline is improved, and the problem that a cooling coil is easy to crack to cause equipment damage in the prior art is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a cooling structure of front and rear end covers of a Roots pump, which comprises a front end cover arranged at one end of a pump body and a rear end cover arranged at the other end of the pump body, wherein the front end cover is provided with a front end cover inner cavity; an oil drain port is arranged at the bottom of the side wall of the inner cavity of the front end cover; the rear end cover is provided with a rear end cover inner cavity, and the bottom of the front end cover at the lower side of the oil drain port is provided with a first cooling water tank; a first cooling water outlet pipe is arranged on one side surface of the front end cover; a front cover water-cooling cover plate mounting plane is formed on the end face of the first cooling water tank at the bottom of the front end cover; the front cover water-cooling cover plate is fixed on the front cover water-cooling cover plate mounting plane through screws; a first cooling water inlet is formed in one surface of the front cover water-cooling cover plate; the front end cover is formed at one time; a second cooling water tank is arranged on the end face of the rear end cover at one side of the inner cavity of the rear end cover; a third cooling water tank is arranged on one side surface of the rear end cover at the lower side of the inner cavity of the rear end cover; a connecting groove is formed in one side face of the rear end cover; the second cooling water tank is communicated with the third cooling water tank through a connecting tank; a first cooling water inlet pipe is arranged at the bottom of the rear end cover; the first cooling water inlet pipe is communicated with the third cooling water tank; the same end face of the second cooling water tank and the third cooling water tank at one side of the rear end cover is provided with a rear cover water-cooling cover plate mounting plane; the rear cover water-cooling cover plate is fixed on the rear cover water-cooling cover plate mounting plane through screws; a first cooling water outlet is formed in one surface of the rear cover water-cooling cover plate; the third cooling water tank penetrates through the lower part of the inner cavity of the whole rear end cover, and the opening end of the third cooling water tank and the opening end of the second cooling water tank are arranged on the same side of the rear end cover; and the rear end cover is formed at one time.
Further, the front cover water-cooling cover plate is of a rectangular structure; the first cooling water inlet is arranged at the center of the cover water cooling cover plate.
Further, a first groove is formed in one surface of the rear cover water-cooling cover plate; the first groove corresponds to one end of the second cooling water tank; the same surface of the rear cover water-cooling cover plate is provided with a second groove; the second groove corresponds to one end of the third cooling water tank; the first cooling water outlet is close to one end of the first groove.
The invention has the following beneficial effects:
1. According to the invention, the structural strength of the cooling water pipeline is increased through the integral molding of the front end cover and the rear end cover, the safety of water supply and cooling is increased, the service life of equipment is prolonged, and the cooling water tank is conveniently cleaned by matching with the front cover water-cooling cover plate and the rear cover water-cooling cover plate.
2. According to the invention, the cooling water cavities of the front end cover and the rear end cover are arranged at the lower part of the oil cavity, so that heat exchange is smoother, and the lubricating oil in the oil cavity can be kept at a lower temperature better, thereby prolonging the service life of the lubricating oil.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a front end cap;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is a rear partial cross-sectional view of the front end cap;
FIG. 4 is a view of the direction indicated by A in FIG. 3;
FIG. 5 is a front view of a front water cooled cover plate;
FIG. 6 is a front view of the rear end cap;
FIG. 7 is a cross-sectional view at B-B in FIG. 6;
FIG. 8 is a front view of the rear water cooled deck;
FIG. 9 is a schematic view of the front and rear end caps mounted on the pump body;
in the drawings, the list of components represented by the various numbers is as follows:
The cooling device comprises a front end cover, a 2-front cover water-cooling cover plate, a 3-rear end cover, a 4-rear cover water-cooling cover plate, a 101-front end cover inner cavity, a 102-oil drain port, a 103-first cooling water tank, a 104-first cooling water outlet pipe, a 105-front cover water-cooling cover plate mounting plane, a 201-first cooling water inlet, a 301-second cooling water tank, a 302-third cooling water tank, a 303-connecting tank, a 304-rear cover water-cooling cover plate mounting plane, a 305-first cooling water inlet pipe, a 306-rear end cover inner cavity, a 401-first cooling water outlet, a 402-first groove and a 403-second groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention discloses a cooling structure for front and rear end covers of a Roots pump, which comprises a front end cover 1 arranged at one end of a pump body and a rear end cover 3 arranged at the other end of the pump body, wherein the front end cover 1 is provided with a front end cover inner cavity 101; an oil drain port 102 is arranged at the bottom of the side wall of the inner cavity 101 of the front end cover; the rear end cover 3 is provided with a rear end cover inner cavity 306, and the bottom of the front end cover 1 at the lower side of the oil drain port 102 is provided with a first cooling water tank 103; a first cooling water outlet pipe 104 is arranged on one side surface of the front end cover 1; the end face of the first cooling water tank 103 at the bottom of the front end cover 1 is provided with a front cover water-cooling cover plate mounting plane 105; the front cover water-cooling cover plate mounting plane 105 is fixed with the front cover water-cooling cover plate 2 through screws; a first cooling water inlet 201 is formed in one surface of the front cover water-cooling cover plate 2; cooling water enters the first cooling water tank 103 through the first cooling water inlet 201 on the front cover water cooling cover plate 2, heat generated by the machine seal and the pump body is transmitted to the front end cover 1 through lubricating grease, the heat is exchanged to the cooling water through heat transfer, the cooling water is discharged through the first cooling water outlet pipe 104 after the temperature of the cooling water is increased, the heat is brought out through water circulation, the temperature of the lubricating grease is reduced, the normal operation of the machine seal is ensured, a cooling water tank is arranged in the machine seal, the water pressure of water flow is increased, and the water flow is more safe and reliable than a coil pipe;
The end face of the rear end cover 3 at one side of the inner cavity 306 of the rear end cover is provided with a second cooling water tank 301; a third cooling water tank 302 is arranged on one side surface of the rear end cover 3 at the lower side of the inner cavity 306 of the rear end cover; a connecting groove 303 is formed on one side surface of the rear end cover 3; the second cooling water tank 301 and the third cooling water tank 302 are communicated through a connecting tank 303; the bottom of the rear end cover 3 is provided with a first cooling water inlet pipe 305; the first cooling water inlet pipe 305 is communicated with the third cooling water tank 302; the second cooling water tank 301 and the third cooling water tank 302 on one side of the rear end cover 3 are provided with a rear cover water-cooling cover plate mounting plane 304 on the same end face; the rear cover water-cooling cover plate mounting plane 304 is fixed with the rear cover water-cooling cover plate 4 through screws; a first cooling water outlet 401 is formed in one surface of the rear cover water cooling cover plate 4; the third cooling water tank 302 penetrates through the whole lower part of the inner cavity 306 of the rear end cover, and the opening end of the third cooling water tank 302 and the opening end of the second cooling water tank 301 are arranged on the same side of the rear end cover 3; cooling water enters a third cooling water tank 302 through a first cooling water inlet pipe 305, enters a second cooling water tank 301 through a connecting tank 303, heat generated by the machine seal and the pump body is transmitted to a rear end cover 3 through lubricating grease, the heat is exchanged to the cooling water through heat transfer, the cooling water is discharged through a first cooling water outlet 401 after the temperature of the cooling water is increased, the heat is brought out through water circulation, the temperature of the lubricating grease is reduced, the normal operation of the machine seal is ensured, a cooling water tank is directly arranged on the rear end cover 3, the water pressure allowed to pass through water flow is increased, and the cooling is safer and more reliable than a coil pipe; the cooling water cavity is arranged at the lower part of the oil cavity, so that heat exchange is smoother, and the lubricating oil in the oil cavity can be kept at a lower temperature better, so that the service life of the lubricating oil is prolonged.
Wherein the front cover water-cooling cover plate 2 is of a rectangular structure; the first cooling water inlet 201 is provided at the center of the cover water cooling cover plate 2.
Wherein, a first groove 402 is formed on one surface of the rear cover water-cooling cover plate 4; the first groove 402 corresponds to one end of the second cooling water tank 301; the same surface of the rear cover water-cooling cover plate 4 is provided with a second groove 403; the second groove 403 corresponds to one end of the third cooling water tank 302; the first cooling water outlet 401 is close to one end of the first groove 402, so that an S-shaped loop is formed, and cooling efficiency is improved.
As shown in fig. 9, the front end cover 1, the rear end cover 3, the front cover water-cooling cover plate 2 and the rear cover water-cooling cover plate 4 are installed on the pump body, and high water pressure is connected to cool the machine seals at the two shaft ends, so that the cooling is efficient and safe.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (1)
1. The cooling structure of the front end cover and the rear end cover of the Roots pump comprises a front end cover (1) arranged at one end of a pump body and a rear end cover (3) arranged at the other end of the pump body, wherein the front end cover (1) is provided with a front end cover inner cavity (101); an oil drain port (102) is arranged at the bottom of the side wall of the inner cavity (101) of the front end cover; the rear end cover (3) is provided with a rear end cover inner cavity (306), and is characterized in that: a first cooling water tank (103) is arranged at the bottom of the front end cover (1) at the lower side of the oil drain port (102); a first cooling water outlet pipe (104) is arranged on one side surface of the front end cover (1); the end face of a first cooling water tank (103) at the bottom of the front end cover (1) is provided with a front cover water-cooling cover plate mounting plane (105); the front cover water-cooling cover plate mounting plane (105) is fixed with a front cover water-cooling cover plate (2) through screws; a first cooling water inlet (201) is formed in one surface of the front cover water-cooling cover plate (2); the end face of the rear end cover (3) at one side of the inner cavity (306) of the rear end cover is provided with a second cooling water tank (301); a third cooling water tank (302) is arranged on one side surface of the rear end cover (3) at the lower side of the inner cavity (306) of the rear end cover; a connecting groove (303) is formed in one side surface of the rear end cover (3); the second cooling water tank (301) is communicated with the third cooling water tank (302) through a connecting tank (303); a first cooling water inlet pipe (305) is arranged at the bottom of the rear end cover (3); the first cooling water inlet pipe (305) is communicated with the third cooling water tank (302); a rear cover water-cooling cover plate mounting plane (304) is formed on the same end face of the second cooling water tank (301) and the third cooling water tank (302) at one side of the rear end cover (3); the rear cover water-cooling cover plate mounting plane (304) is fixed with a rear cover water-cooling cover plate (4) through screws; a first cooling water outlet (401) is formed in one surface of the rear cover water cooling cover plate (4); the front cover water-cooling cover plate (2) is of a rectangular structure; the first cooling water inlet (201) is arranged in the center of the cover water-cooling cover plate (2); a first groove (402) is formed in one surface of the rear cover water-cooling cover plate (4); the first groove (402) is matched with one end of the second cooling water tank (301); the same surface of the rear cover water-cooling cover plate (4) is provided with a second groove (403); the second groove (403) is matched with one end of the third cooling water tank (302); the first cooling water outlet (401) is arranged at one end part of the first groove (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109267.9A CN108953155B (en) | 2018-09-21 | 2018-09-21 | Cooling structure for front end cover and rear end cover of Roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109267.9A CN108953155B (en) | 2018-09-21 | 2018-09-21 | Cooling structure for front end cover and rear end cover of Roots pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953155A CN108953155A (en) | 2018-12-07 |
| CN108953155B true CN108953155B (en) | 2024-05-10 |
Family
ID=64471672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811109267.9A Active CN108953155B (en) | 2018-09-21 | 2018-09-21 | Cooling structure for front end cover and rear end cover of Roots pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953155B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625606Y (en) * | 2003-06-04 | 2004-07-14 | 上海萃曼真空机电制造有限公司 | Cooling structure for Root's vacuum pump |
| CN202867218U (en) * | 2012-10-18 | 2013-04-10 | 江阴天田真空设备制造有限公司 | Roots vacuum pump with magnetic transmission gear |
| CN103062063A (en) * | 2013-01-19 | 2013-04-24 | 上海零澜机械科技有限公司 | Convection and fully-cooled type end cover structure for novel roots pump |
| CN207598584U (en) * | 2017-11-20 | 2018-07-10 | 江阴天田真空设备制造有限公司 | The mechanical seal cooling structure of vacuum pump |
| CN208816338U (en) * | 2018-09-21 | 2019-05-03 | 江阴天田真空设备制造有限公司 | Lobe pump front and rear cover cooling structure |
-
2018
- 2018-09-21 CN CN201811109267.9A patent/CN108953155B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625606Y (en) * | 2003-06-04 | 2004-07-14 | 上海萃曼真空机电制造有限公司 | Cooling structure for Root's vacuum pump |
| CN202867218U (en) * | 2012-10-18 | 2013-04-10 | 江阴天田真空设备制造有限公司 | Roots vacuum pump with magnetic transmission gear |
| CN103062063A (en) * | 2013-01-19 | 2013-04-24 | 上海零澜机械科技有限公司 | Convection and fully-cooled type end cover structure for novel roots pump |
| CN207598584U (en) * | 2017-11-20 | 2018-07-10 | 江阴天田真空设备制造有限公司 | The mechanical seal cooling structure of vacuum pump |
| CN208816338U (en) * | 2018-09-21 | 2019-05-03 | 江阴天田真空设备制造有限公司 | Lobe pump front and rear cover cooling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108953155A (en) | 2018-12-07 |
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