CN212690330U - Heat preservation device for single-screw pump stator - Google Patents
Heat preservation device for single-screw pump stator Download PDFInfo
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- CN212690330U CN212690330U CN202021295716.6U CN202021295716U CN212690330U CN 212690330 U CN212690330 U CN 212690330U CN 202021295716 U CN202021295716 U CN 202021295716U CN 212690330 U CN212690330 U CN 212690330U
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Abstract
A heat preservation device for a stator of a single-screw pump belongs to the technical field of heat preservation of single-screw pumps and comprises a stator and a heat preservation jacket sleeved on the outer surface of the stator, wherein the heat preservation jacket and the stator are of an integrated structure, a heat preservation cavity is arranged between the heat preservation jacket and the stator, a high-temperature inlet and a low-temperature outlet are arranged on the heat preservation cavity, and the low-temperature outlet and the high-temperature inlet are both communicated with the heat preservation cavity; the outer surface of the stator is sleeved with a first sealing cover plate and a second sealing cover plate which are oppositely arranged, and the heat-insulating jacket is arranged between the first sealing cover plate and the second sealing cover plate; a plurality of heating pipes are connected between the sealing cover plate II and the sealing cover plate I, the heating pipes are connected with a controller, and the plurality of heating pipes are uniformly arranged around the heat-insulating jacket; the stator is further sleeved with a heat preservation layer, the heat preservation layer covers the first sealing cover plate, the second sealing cover plate and the heating pipe, and a heat accommodating space is formed between the heat preservation layer and the heat preservation jacket. Through the integral design of the heat-insulating jacket and the stator and the arrangement of structures such as the heating pipe and the like, the sealing performance is improved.
Description
Technical Field
The utility model relates to a single-screw pump keeps warm technical field, concretely relates to single-screw pump is heat preservation device for stator.
Background
The single screw pump is a single screw type transport pump, its main working components are screw (called rotor) with eccentric screw body and screw bush (called stator) whose inner surface is made into double-line screw surface, it is a new type machine for conveying liquid, and has the advantages of simple structure, safe and reliable operation, convenient use and maintenance, continuous and uniform liquid discharge and stable pressure, etc. The working principle is that when the motor drives the pump shaft to rotate, the screw rod rotates around the axis of the screw rod, and rolls along the inner surface of the lining, so that a sealed chamber of the pump is formed. The liquid in the sealing cavity advances by a screw pitch in each rotation of the screw, and the liquid is pressed from one sealing cavity to the other sealing cavity in a spiral mode along with the continuous rotation of the screw, and finally the pump body is extruded.
When the single-screw pump is used for conveying certain media which need constant temperature or high temperature, the stator and the suction cavity of the pump need to be insulated (as shown in figure 3). However, the hot steam which is commonly used for heat preservation belongs to a high-temperature and high-pressure state, the requirement on the sealing property between the screw pump stator and the heat preservation jacket is extremely high, and the traditional heat preservation jacket and the stator are sealed by rubber. The leakage of hot steam is caused by easy aging at a high temperature, the stator rubber and the heat insulation jacket are loosened, the sealing performance is reduced, and the heat insulation function cannot be realized.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned shortcoming that prior art exists, the utility model discloses a single-screw pump is heat preservation device for stator has solved and has leaded to the problem that takes off between stator and the heat preservation clamp cover because of the high pressure, has ensured the temperature in the heat preservation intracavity.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a heat preservation device for single-screw pump stator, includes the stator and the cover is located heat preservation jacket on the stator surface, heat preservation jacket with the stator sets up to integral type structure, heat preservation jacket with be equipped with the heat preservation chamber between the stator, be equipped with high temperature entry and low temperature export on the heat preservation chamber, the low temperature export with the high temperature entry all with heat preservation chamber intercommunication.
The outer surface of the stator is sleeved with a first sealing cover plate and a second sealing cover plate which are oppositely arranged, the first sealing cover plate and the second sealing cover plate are both of arc structures, the heat-insulation jacket is arranged between the first sealing cover plate and the second sealing cover plate, a plurality of heating pipes are connected between the second sealing cover plate and the first sealing cover plate, the heating pipes are connected with a controller, and the plurality of heating pipes are uniformly arranged around the heat-insulation jacket.
The stator is further sleeved with a heat insulation layer, the heat insulation layer covers the first sealing cover plate, the second sealing cover plate and the heating pipe, and a heat accommodating space is arranged between the heat insulation layer and the heat insulation jacket.
Preferably, a temperature sensor is arranged in the heat preservation cavity, the temperature sensor is connected with a low-temperature alarm, and the low-temperature alarm is connected with the controller.
Preferably, the first sealing cover plate and the second sealing cover plate are detachably connected with the heating pipe.
Preferably, the diameter of the high temperature inlet is larger than that of the low temperature outlet.
The utility model has the advantages of that: the utility model discloses a to the setting of the stator of integral type structure and heat preservation clamp cover isotructure, can solve the heat preservation clamp cover and easily age under the high temperature state and cause the problem of the leakage of hot steam, avoided the pine of stator between the clamp cover with the heat preservation to take off, prolonged the life-span, reduced maintenance cost of maintenance.
Through the arrangement of the heating pipe, the temperature sensor, the low-temperature alarm and other structures, the temperature of the heat-preservation jacket is monitored in real time, the heating pipe is opened and closed as required, and the temperature in the heat-preservation cavity of the single-screw pump is ensured when certain media needing constant temperature or high temperature are conveyed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic view of the heat preservation device for the single-screw pump stator of the present invention.
Fig. 2 is a schematic view of a-a of the heat preservation device for the single-screw pump stator of the present invention.
FIG. 3 shows a heat-insulating method of a single screw pump in the prior art.
In the figure: 1-stator, 2-heat preservation jacket, 3-heat preservation cavity, 4-high temperature inlet, 5-low temperature outlet, 6-sealing cover plate I, 7-sealing cover plate II, 8-heating pipe, 9-controller, 10-heat preservation layer, 11-heat containing space, 12-temperature sensor and 13-low temperature alarm.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a stator 1 and cover are located the heat preservation on the stator 1 surface and are pressed from both sides the cover 2, and heat preservation presss from both sides the cover 2 and establishes to the integral type structure with stator 1 to prevent to cause the leakage of hot steam after the rubber when originally using rubber seal is ageing, also avoided under the high temperature the pine between heat preservation press from both sides the cover 2 and the stator 1 to take off.
Be equipped with heat preservation chamber 3 between heat preservation jacket 2 and the stator 1, be equipped with high temperature entry 4 and low temperature export 5 on the heat preservation chamber 3, the diameter of high temperature entry 4 is greater than the diameter of low temperature export 5 to prevent that the heat loss is too fast. The low-temperature outlet 5 and the high-temperature inlet 4 are both communicated with the heat preservation cavity 3 so as to be beneficial to the passing of high-temperature media. A temperature sensor 12 is arranged in the heat preservation cavity 3, the temperature sensor 12 is connected with a low-temperature alarm 13, and the low-temperature alarm 13 is connected with the controller 9. So as to control the temperature in the heat preservation chamber 3 in real time.
The outer surface of the stator 1 is sleeved with a first sealing cover plate 6 and a second sealing cover plate 7 which are oppositely arranged, and the first sealing cover plate 6, the second sealing cover plate 7 and the heating pipe 8 are detachably connected so as to be convenient to replace, maintain and install. The first sealing cover plate 6 and the second sealing cover plate 7 are both of arc structures so as to increase the distance between the sealing cover plates and the heat-insulating jacket 2 and facilitate heat filling. The heat-preservation jacket 2 is arranged between the first sealing cover plate 6 and the second sealing cover plate 7, a plurality of heating pipes 8 are connected between the second sealing cover plate 7 and the first sealing cover plate 6, the heating pipes 8 are connected with a controller 9, and the plurality of heating pipes 8 are uniformly arranged around the heat-preservation jacket 2. So that the heat-insulating jacket 2 is heated uniformly, and the single-screw pump is favorable for conveying a medium with constant temperature or high temperature.
Still the cover is equipped with heat preservation 10 on the stator 1, and heat preservation 10 covers sealed apron one 6, sealed apron two 7 and heating pipe 8, is equipped with heat accommodation space 11 between heat preservation 10 and the heat preservation cover 2. So as to ensure enough space to contain heat and reduce heat dissipation.
When the single-screw pump is used for conveying certain media needing constant temperature or high temperature, high-temperature media are firstly injected into the high-temperature inlet 4 of the heat preservation jacket 2, if the temperature in the heat preservation cavity 3 is reduced, the temperature sensor 12 sends information to the low-temperature alarm 13, the low-temperature alarm 13 feeds back the information to the controller 9, then the heating pipe 8 starts to work, when the temperature in the heat preservation cavity 3 reaches the required temperature, heating is stopped, the temperature in the heat preservation cavity 3 is kept at the required temperature, and the single-screw pump is favorable for smoothly conveying the constant-temperature or high-temperature media. And, stator 1 and heat preservation jacket 2 have set up to the integral type structure, can not cause the leakage of hot steam because of ageing and the high temperature of rubber, also can not consequently lead to the pine of taking off between stator 1 and the heat preservation jacket 2, have improved sealing performance simultaneously, have ensured the temperature in the heat preservation chamber 3.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (4)
1. A heat preservation device for a single-screw pump stator comprises a stator and a heat preservation jacket sleeved on the outer surface of the stator, and is characterized in that the heat preservation jacket and the stator are of an integrated structure, a heat preservation cavity is arranged between the heat preservation jacket and the stator, a high-temperature inlet and a low-temperature outlet are arranged on the heat preservation cavity, and the low-temperature outlet and the high-temperature inlet are both communicated with the heat preservation cavity;
the outer surface of the stator is sleeved with a first sealing cover plate and a second sealing cover plate which are oppositely arranged, the first sealing cover plate and the second sealing cover plate are both of arc structures, the heat-insulation jacket is arranged between the first sealing cover plate and the second sealing cover plate, a plurality of heating pipes are connected between the second sealing cover plate and the first sealing cover plate, the heating pipes are connected with a controller, and the plurality of heating pipes are uniformly arranged around the heat-insulation jacket;
the stator is further sleeved with a heat insulation layer, the heat insulation layer covers the first sealing cover plate, the second sealing cover plate and the heating pipe, and a heat accommodating space is arranged between the heat insulation layer and the heat insulation jacket.
2. The heat preservation device for the stator of the single-screw pump according to claim 1, wherein a temperature sensor is arranged in the heat preservation cavity, the temperature sensor is connected with a low temperature alarm, and the low temperature alarm is connected with the controller.
3. The heat preservation device for the stator of the single-screw pump according to claim 1, wherein the first sealing cover plate and the second sealing cover plate are detachably connected with the heating pipe.
4. The thermal insulation device for the stator of the progressive cavity pump according to claim 1, wherein the diameter of the high temperature inlet is larger than the diameter of the low temperature outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295716.6U CN212690330U (en) | 2020-07-03 | 2020-07-03 | Heat preservation device for single-screw pump stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295716.6U CN212690330U (en) | 2020-07-03 | 2020-07-03 | Heat preservation device for single-screw pump stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690330U true CN212690330U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021295716.6U Active CN212690330U (en) | 2020-07-03 | 2020-07-03 | Heat preservation device for single-screw pump stator |
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| Country | Link |
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| CN (1) | CN212690330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773868A (en) * | 2022-11-15 | 2023-03-10 | 山东泰展机电科技股份有限公司 | Vortex line-based air pump detection device |
-
2020
- 2020-07-03 CN CN202021295716.6U patent/CN212690330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773868A (en) * | 2022-11-15 | 2023-03-10 | 山东泰展机电科技股份有限公司 | Vortex line-based air pump detection device |
| CN115773868B (en) * | 2022-11-15 | 2024-03-15 | 山东泰展机电科技股份有限公司 | Air pump detection device based on vortex line |
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