CN210343708U

CN210343708U - Be applied to evacuating device of single screw compressor of water spray

Info

Publication number: CN210343708U
Application number: CN201920920421.4U
Authority: CN
Inventors: 王祖辉; 盛昌国
Original assignee: Denair Energy Saving Technology Shanghai Co ltd
Current assignee: Denair Energy Saving Technology Shanghai Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-17
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a be applied to water spray single screw compressor's evacuating device, the motor comprises a compressor body, be provided with the bearing frame on the compressor body, the bearing frame is connected with evacuating device, evacuating device is including inhaling filter, air-blower, ejector and a plurality of hose, and the steam with in the bearing frame that can be fine through connecting evacuating device on the bearing frame is taken out, inhales vacuum equipment such as filter, air-blower, ejector and a plurality of hose simple structure, and easy operation has made things convenient for staff's use.

Description

Be applied to evacuating device of single screw compressor of water spray

Technical Field

The utility model relates to a compressor technical field, more specifically say, relate to a be applied to water spray single screw compressor's evacuating device.

Background

Under the national advocation of energy conservation and environmental protection, the water-spraying screw compressor is favored by birth and is in the rapid development stage. There are two types of water spray screws on the market at present: one is a water-jet single screw compressor; the utility model provides a be water spray double screw compressor, two kinds of models all are equipped with screw rod, compression cavity, bearing frame, mechanical seal, bearing etc. to water spray single screw compressor is the example, and its main shaft and star wheel axle both ends all are equipped with mechanical seal, bearing and bearing frame, and because mechanical seal blocks after water gets into the compression cavity, water can not get into bearing frame and bearing direct contact, prevents that the bearing from rustting, and to this kind of structure, it has following defect:

1. the requirement on mechanical sealing is high, and the difficulty of a manufacturing process is increased;

2. after the high-temperature gas heats water, water vapor is generated, so that the water vapor can slowly permeate into the bearing seat, is in contact with the bearing and cannot be discharged, and the bearing is easy to rust;

3. the humidity resistance of the bearing is high, and the use cost of the material is further increased;

4. after the water vapor enters the bearing seat, the water vapor cannot be discharged out, the heat dissipation of the bearing can be influenced, and the service life of the bearing is finally shortened.

The utility model discloses a new solution is proposed to above problem.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a be applied to water spray single screw compressor's evacuating device to solve the problem that mentions in the background art.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a be applied to water spray single screw compressor's evacuating device, includes the compressor body, be provided with the bearing frame on the compressor body, the bearing frame is connected with evacuating device, evacuating device is including inhaling filter, air-blower, ejector and a plurality of hose, the air-blower passes through the outlet duct with the ejector and links to each other, hose one end links to each other with inhaling the filter, and the other end links to each other with the air inlet of bearing frame, the gas outlet on hose one end and the bearing frame links to each other, and the other end links to each other with the ejector.

Preferably, the suction filter includes a filter body and filter cotton, the filter cotton is disposed around an upper half portion of the filter body, and a lower half portion of the filter body is provided with an exhaust port connected to the hose.

In any one of the above aspects, preferably, a plurality of the exhaust ports are provided and are provided to correspond to the hoses, respectively.

In any of the above schemes, preferably, the filter body is provided with a filter hole, and the filter hole is arranged corresponding to the filter cotton.

In any one of the above aspects, preferably, the filter hole is provided in plurality.

In any of the above schemes, preferably, the ejector is a vacuum generator, and the vacuum pumping is realized by using a siphon principle.

In any of the above schemes, preferably, the ejector comprises a housing, a nozzle is arranged in the housing, a jet pipe is connected to the lower end of the housing, and the jet pipe is installed below the nozzle.

In any of the above aspects, preferably, a first jet flow channel is arranged inside the nozzle, the first jet flow channel is conical, and the opening area of the upper end is larger than that of the lower end.

In any of the above schemes, preferably, a second jet flow channel and a third jet flow channel are arranged inside the jet flow pipe, the second jet flow channel and the third jet flow channel are arranged in a communicating manner, the third jet flow channel is arranged in a conical shape, the opening area of the upper end is smaller than that of the lower end, the second jet flow channel is cylindrical, and the opening area of the second jet flow channel is the same as that of the top end of the third jet flow channel.

In any of the above schemes, preferably, the outer wall of the ejector is connected with a support frame.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the invention has simple structure, low cost, small volume, small occupied space and simple operation, and can be used for powering on the blower, thereby facilitating the operation of workers;

2. according to the invention, water vapor in the bearing seat is pumped out, so that the contact time of the water vapor and the bearing is reduced, and the service lives of the bearing seat and the bearing are prolonged;

3. the invention has the advantages of opening the closed space in the bearing seat, smooth air circulation and good heat dissipation effect, and takes away the heat generated by the bearing during the operation, thereby prolonging the service life of the bearing seat and the bearing and ensuring the safety and the stability of the main engine of the compressor.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the suction filter of the present invention;

fig. 4 is a schematic structural diagram of the ejector of the present invention.

The reference numbers in the figures illustrate:

1. the compressor comprises a compressor body, 2, a bearing seat, 3, a suction filter, 31, a filter body, 32, filter cotton, 33, an exhaust port, 34, a filter hole, 4, a blower, 5, a jet device, 51, a shell, 52, a nozzle, 53, a jet pipe, 54, a first jet flow channel, 55, a second jet flow channel, 56, a third jet flow channel, 6, a hose, 7, an air outlet pipe, 8 and a support frame.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Example 1:

referring to fig. 1-4, a vacuum pumping device for a water-spraying single screw compressor comprises a compressor body 1, the compressor body 1 is provided with a bearing seat 2, the bearing seat 2 is connected with a vacuumizing device, the vacuum pumping device comprises a suction filter 3, a blower 4, an ejector 5 and a plurality of hoses 6, the blower 4 is connected with the ejector 5 through an air outlet pipe 7, one end of the hose 6 is connected with the suction filter 3, the other end is connected with the air inlet of the bearing seat 2, one end of the hose 6 is connected with the air outlet on the bearing seat 2, the other end is connected with the ejector 5, the water vapor in the bearing seat 2 can be well pumped out by connecting the vacuumizing device on the bearing seat 2, and the vacuumizing equipment such as the suction filter 3, the air blower 4, the ejector 5, the plurality of hoses 6 and the like has simple structure and easy operation, and is convenient for the use of workers.

As shown in fig. 3, in the present embodiment, the suction filter 3 includes a filter body 31 and a filter cotton 32, the filter cotton 32 is disposed around the upper half portion of the filter body 31, the lower half portion of the filter body 31 is provided with an exhaust port 33, the exhaust port 33 is connected to the hose 6, and some impurities in the air can be well filtered by the filter cotton 32, so as to prevent the impurities from entering into the bearing seat 2, so as to prevent the pollution to the bearing seat 2.

As shown in fig. 2 and 3, in this embodiment, the exhaust port 33 is provided in plural and respectively corresponding to the hoses 6, so that the plurality of bearing seats 2 on the compressor body 1 can be simultaneously inflated, and the working efficiency of the vacuum pumping device is improved.

As shown in fig. 3, in this embodiment, the filter body 31 is provided with a filter hole 34, the filter hole 34 is disposed corresponding to the filter cotton 32, and the air can be further purified through the filter hole 34, so that the cleanliness of the air entering the bearing seat 2 is improved.

As shown in fig. 3, in the present embodiment, the filter holes 34 are provided in plural, and the design of the plural filter holes 34 improves the filtering effect and the filtering efficiency of the air, and speeds up the working efficiency of the subsequent water vapor extraction.

As shown in fig. 1, in this embodiment, the ejector 5 is a vacuum generator, and the vacuum pumping is realized by using the siphon principle, so that the water vapor in the bearing seat 2 can be better pumped outwards, and the service life of the bearing seat 2 is prolonged.

As shown in fig. 4, in the present embodiment, the ejector 5 includes a housing 51, a nozzle 52 is disposed inside the housing 51, a jet pipe 53 is connected to a lower end of the housing 51, the jet pipe 53 is installed below the nozzle 52, and the matching design of the nozzle 52 and the jet pipe 53 can well convey the gas generated by the blower 4.

As shown in fig. 4, in the present embodiment, the nozzle 52 is internally provided with a first jet flow channel 54, and the first jet flow channel 54 is provided in a tapered shape, and the opening area of the upper end is larger than that of the lower end, so that high-speed gas can be generated, and a siphon phenomenon can be better generated.

As shown in fig. 4, in the present embodiment, a second jet flow channel 55 and a third jet flow channel 56 are arranged inside the jet pipe 53, the second jet flow channel 55 and the third jet flow channel 56 are arranged in a communicating manner, the third jet flow channel 56 is arranged in a conical shape, the opening area of the upper end is smaller than that of the lower end, the second jet flow channel 55 is cylindrical, the opening area is the same as that of the top end of the third jet flow channel 56, the gas is ejected through the third jet flow channel 56 (expanding hole) of the jet pipe 53 in cooperation with the high-speed gas generated by the nozzle 52, and the vacuum is formed by utilizing the siphon phenomenon generated by the high-speed gas through the jet 5.

As shown in fig. 1, in this embodiment, the outer wall of the ejector 5 is connected with a support frame 8, so that the ejector 5 can be better installed, and the use of workers is facilitated.

Example 2:

on the basis of embodiment 1, evacuating device can be applied to water spray single screw compressor and water spray double screw compressor, its theory of operation is: after the blower 4 is powered on, air is pressurized by the blower 4 and then discharged, the air is introduced into the ejector 5 through the air outlet pipe 7, high-speed air is generated through the first jet flow channel 54 in the nozzle 52 in the ejector 5, the air is ejected through the second jet flow channel 55 and the third jet flow channel 56 (gradually expanding holes) in the jet flow pipe, vacuum is formed by utilizing the siphoning phenomenon generated by the high-speed air through the ejector 5, and water vapor in the bearing seat 2 is sucked out through the connecting hoses 6. In the relatively closed bearing seat 2, in order to extract the water vapor, it is very difficult to add an air inlet on the bearing seat 2, that is, the water vapor can be extracted by utilizing the pressure difference between the vacuum generated by the ejector 5 and the atmospheric pressure, and because the bearing needs a clean environment in the bearing seat 2, the outside air is filtered by the suction filter 3, and the air is filtered by the filter cotton 32 and the filter holes 34.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an evacuating device for water spray single screw compressor, includes compressor body (1), be provided with bearing frame (2) on compressor body (1), its characterized in that, bearing frame (2) are connected with evacuating device, evacuating device is including inhaling filter (3), air-blower (4), ejector (5) and a plurality of hose (6), air-blower (4) link to each other through outlet duct (7) with ejector (5), hose (6) one end links to each other with inhaling filter (3), and the other end links to each other with the air inlet of bearing frame (2), hose (6) one end links to each other with the gas outlet on bearing frame (2), and the other end links to each other with ejector (5).

2. The vacuum extractor applied to the water-jet single-screw compressor is characterized in that: the suction filter (3) comprises a filter body (31) and filter cotton (32), the filter cotton (32) is arranged around the upper half part of the filter body (31), an exhaust port (33) is arranged on the lower half part of the filter body (31), and the exhaust port (33) is connected with the hose (6).

3. The vacuum extractor applied to the water-jet single-screw compressor as claimed in claim 2, wherein: the exhaust port (33) is provided with a plurality of exhaust ports respectively corresponding to the hoses (6).

4. The vacuum extractor applied to the water-jet single-screw compressor as claimed in claim 2, wherein: the filtering body (31) is provided with filtering holes (34), and the filtering holes (34) are arranged corresponding to the filtering cotton (32).

5. The vacuum extractor applied to the water-jet single-screw compressor is characterized in that: the filter holes (34) are provided in plurality.

6. The vacuum extractor applied to the water-jet single-screw compressor is characterized in that: the ejector (5) is a vacuum generator.

7. The vacuum extractor applied to the water-jet single-screw compressor as claimed in claim 6, wherein: the jet device (5) comprises a shell (51), a nozzle (52) is arranged in the shell (51), a jet pipe (53) is connected to the lower end of the shell (51), and the jet pipe (53) is installed below the nozzle (52).

8. The vacuum extractor applied to the water-jet single-screw compressor as claimed in claim 7, wherein: the nozzle (52) is internally provided with a first jet flow channel (54), the first jet flow channel (54) is arranged to be conical, and the opening area of the upper end is larger than that of the lower end.

9. The vacuum extractor applied to the water-jet single-screw compressor as claimed in claim 7, wherein: the jet pipe (53) is internally provided with a second jet channel (55) and a third jet channel (56), the second jet channel (55) and the third jet channel (56) are communicated, the third jet channel (56) is conical, the opening area of the upper end of the third jet channel is smaller than that of the lower end of the third jet channel, the second jet channel (55) is cylindrical, and the opening area of the second jet channel is the same as that of the top end of the third jet channel (56).

10. The vacuum extractor applied to the water-jet single-screw compressor as claimed in any one of claims 1 to 9, wherein: the outer wall of the ejector (5) is connected with a support frame (8).