CN210889320U - Blade structure with refrigerating system - Google Patents

Abstract

The utility model discloses a blade structure with refrigerating system, including blade and impeller shaft, blade fixed connection is on the impeller shaft, and inside condensation chamber and the evaporation chamber of being provided with of blade, the condensation chamber sets up the one end of being close to the impeller shaft, and the one end of impeller shaft is kept away from in the blade to the evaporation chamber setting, and the condensation chamber is linked together through the orifice with the evaporation chamber, and the impeller shaft internal fixation is provided with the compressor, the compressor divide into high pressure steam chamber and low pressure steam chamber with the impeller shaft, low pressure steam chamber is provided with low pressure steam runner and is linked together with the evaporation chamber, high pressure steam chamber is provided with high pressure steam runner and is linked together with the condensation chamber, be provided with the refrigeration working medium runner between low pressure steam runner and evaporation chamber. The utility model discloses having broken away from partial blade and needing to set up external circulative cooling system's complex construction alone at the during operation, overall structure is compact, and area is little, is applicable to and requires high to operational environment temperature, the abominable occasion of operational environment.

Description

Blade structure with refrigerating system

Technical Field

The utility model relates to a water ring vacuum pump field, concretely relates to blade structure with refrigerating system.

Background

The water ring vacuum pump realizes the processes of air suction, compression and exhaust by utilizing the variable volume of a cavity, and belongs to a variable volume type vacuum pump. When the impeller rotates clockwise, the working water is thrown to the periphery by the impeller, and the water forms a closed circular ring with the same thickness on the inner side of the shell due to the action of centrifugal force. At the moment, a crescent space is formed between the impeller and the water ring, and the space is divided into a plurality of small cavities with the same number of blades by the impeller. If the upper part 0 degree of the impeller is taken as a starting point, the volume of a small cavity is changed from small to large when the impeller rotates for 180 degrees, and the cavity forms vacuum to suck gas through the pumping hole; when the impeller continues to rotate, the volume of the small cavity which sucks the gas is reduced from large to small, the gas in the cavity is continuously compressed and pressurized, and the pressurized gas is discharged out of the pump along the exhaust port.

In the working process of the water ring pump, the temperature of the working liquid continuously rises to influence the pumping capacity of the water ring pump, and the temperature directly influences the thermal efficiency of the chemical process. In order to ensure that the temperature of the working water is always within a limit value, a set of circulating water cooling system is also required to be configured on the water ring vacuum pump. Although the problem of vacuum degree caused by the temperature rise of the working water is relieved to a certain extent by adopting an external circulation cooling mode. But the fact is that in summer, the temperature of the external circulating cooling water reaches more than 35 ℃, and the cooling effect is extremely poor; in addition, the rotation power consumption of the pump and the suction of high-temperature steam brought by non-condensable gas lead the working water in the water ring pump to even reach more than 50 ℃, thus causing the suction capacity of the water ring pump to be seriously reduced. When the working water temperature is 50 ℃, the ultimate vacuum degree is 12.4 kPa.

It can be seen from the actual working process of the water ring pump that the water ring pump is widely applied to the industries of chemical industry, mine, paper making, metallurgy and the like due to the advantages of simple structure, strong pumping capability, low cost and the like. But because the extreme vacuum of the water ring pump is low, the working performance depends on the temperature of working water to a great extent. In order to improve the pumping capacity of the water ring pump, an external circulating cooling water system, an auxiliary vacuum pumping system and even a mode of providing cooling water by a refrigerating unit have to be adopted. These not only have increased vacuum system's investment cost, and external recirculated cooling water system area is big, arrange the difficulty, still be difficult to satisfy design vacuum scheduling problem under the summer operating mode has become the huge challenge that the water ring pump field had to be solved, and other equipment similar to water ring pump blade all need cool down in the course of the work, and the outer recirculated cooling device that needs to set up not only takes up an area of great, has increased extra use cost simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blade structure with refrigerating system can effectively reduce the temperature of operational environment around the blade to improve equipment's work efficiency.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a blade structure with refrigerating system, includes blade and impeller shaft, blade fixed connection is on the impeller shaft, and inside condensation chamber and the evaporation chamber of being provided with of blade, the condensation chamber sets up the one end of being close to the impeller shaft, and the one end of keeping away from the impeller shaft in the blade is set up in the evaporation chamber, and the condensation chamber is linked together through the orifice with the evaporation chamber.

Further, a compressor is fixedly arranged in the impeller shaft, the compressor divides the impeller shaft into a high-pressure steam cavity and a low-pressure steam cavity, a refrigeration working medium flow channel is arranged between the low-pressure steam cavity and the evaporation cavity, one end of the refrigeration working medium flow channel is communicated with the low-pressure steam cavity through the low-pressure steam flow channel, the other end of the refrigeration working medium flow channel is communicated with the evaporation cavity, and the high-pressure steam cavity is communicated with the condensation cavity through the high-pressure steam flow channel. .

Preferably, the throttle hole is provided in a tapered shape.

Preferably, the inner wall of the evaporation cavity is provided with a hydrophilic capillary porous medium layer.

Compared with the prior art, the utility model discloses one of following beneficial effect has:

1. the utility model discloses the inside evaporation chamber that is provided with of blade can absorb the heat that working water produced at the operation in-process around the blade when the blade operation, effectively reduces the ambient temperature of blade in the course of the work to improve the work efficiency of blade and equipment.

2. The utility model discloses an inside refrigerating system that impeller shaft and blade set up, can make full use of blade structure realize the purpose to the cooling of working water around the blade, the utility model discloses overall structure is compact, and area is little, is applicable to the occasion that requires height, operational environment is abominable to operational environment temperature.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the impeller and the impeller shaft of the present invention.

Fig. 3 is an internal structure view of the blade of the present invention.

In the figure: 1-impeller shaft, 2-blade, 11-compressor, 12-low pressure steam channel, 13-high pressure steam channel, 21-condensation chamber, 22-orifice, 23-evaporation chamber, 24-refrigeration working medium channel, and 25-hydrophilic capillary porous medium layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The utility model provides a blade structure with refrigerating system, includes blade 2 and impeller shaft 1, blade 2 fixed connection is on impeller shaft 1, and blade 2 is inside to be provided with condensation chamber 21 and evaporation chamber 23, condensation chamber 21 sets up the one end of being close to impeller shaft 1, and evaporation chamber 23 sets up the one end of keeping away from impeller shaft 1 in the blade, and condensation chamber 21 is linked together through orifice 22 with evaporation chamber 23, sets up the size of the inside condensation chamber 21 of blade and evaporation chamber 23 according to the size of a dimension of blade 2, the material of blade 2 can select for use the material that the higher heat-conducting property of hardness is better to make, and blade 2 when carrying out the operation, reduces the temperature of blade 2 operational environment through the cooling medium who fills in condensation chamber 21 and evaporation chamber 23 to indirect improve equipment's work efficiency.

Example 2

A blade structure with a refrigerating system comprises a blade 2 and an impeller shaft 1, wherein the blade 2 is fixedly connected to the impeller shaft 1, a condensation cavity 21 and an evaporation cavity 23 are arranged inside the blade 2, the condensation cavity 21 is arranged at one end close to the impeller shaft 1, the evaporation cavity 23 is arranged at one end far away from the impeller shaft 1 in the blade, the condensation cavity 21 is communicated with the evaporation cavity 23 through a throttling hole 22, the sizes of the condensation cavity 21 and the evaporation cavity 23 inside the blade are arranged according to the size of the blade 2, the material of the blade 2 can be made of a material with high hardness and good heat conduction performance, a compressor 11 is fixedly arranged in the impeller shaft 1, the impeller shaft 1 is divided into a high-pressure steam cavity and a low-pressure steam cavity by the compressor 11, a refrigerating working medium flow channel 24 is arranged between the low-pressure steam cavity and the evaporation cavity 23, one end of the refrigerating working medium flow channel 24 is communicated with the low-pressure, the other end of the refrigeration working medium flow passage 24 is communicated with the evaporation cavity 23, the high-pressure steam cavity is communicated with the condensation cavity 21 through the high-pressure steam flow passage 13, the compressor 11 arranged in the impeller shaft 1 can adopt a screw type refrigeration compressor, the screw type refrigeration compressor has small volume, light weight, large single machine refrigeration capacity, convenient maintenance and stable operation, has small influence on the impeller shaft 1 and the blades 2 in the operation process, the screw type refrigeration compressor is connected with a connecting wire and is connected with a power supply and a controller, the arranged screw type refrigeration compressor pressurizes and conveys a cooling medium to the high-pressure steam cavity from the low-pressure steam flow passage 12, the cooling medium circularly flows in the blades 2 and the impeller shaft 1, the cooling medium absorbs heat in the evaporation cavity 23, the temperature of the environment around the end parts of the blades 2 can be effectively reduced, the working efficiency of the equipment is improved, and meanwhile, the large occupied area caused by adopting an external, high cost and the like.

Example 3

In addition to the embodiment 1-2, the orifice 22 is provided in the tapered shape, and the flow resistance of the cooling medium in the orifice 22 can be effectively reduced.

Example 4

On the basis of the embodiments 1 to 3, the inner wall of the evaporation cavity 23 is provided with the hydrophilic capillary porous medium layer 25, and the hydrophilic capillary porous medium layer 25 arranged on the inner wall of the evaporation cavity 23 can rapidly distribute the refrigerant to the inner wall, thereby improving the heat exchange area and enhancing the condensation effect on the working water.

Reference throughout this specification to embodiments means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (4)

1. A vane structure having a refrigeration system, characterized by: including blade (2) and impeller shaft (1), blade (2) fixed connection is on impeller shaft (1), and blade (2) are inside to be provided with condensation chamber (21) and evaporation chamber (23), condensation chamber (21) set up the one end of being close to impeller shaft (1), and evaporation chamber (23) set up the one end of keeping away from impeller shaft (1) in the blade, and condensation chamber (21) are linked together through orifice (22) with evaporation chamber (23).

2. A vane construction having a refrigeration system as set forth in claim 1 wherein: the impeller shaft (1) internal fixation is provided with compressor (11), compressor (11) divide into high pressure steam chamber and low pressure steam chamber impeller shaft (1), be provided with refrigeration working medium runner (24) between low pressure steam chamber and evaporation chamber (23), refrigeration working medium runner (24) one end is linked together with the low pressure steam chamber through low pressure steam runner (12), refrigeration working medium runner (24) other end is linked together with evaporation chamber (23), the high pressure steam chamber is linked together with condensation chamber (21) through high pressure steam runner (13).

3. A vane construction having a refrigeration system as set forth in claim 1 wherein: the throttle hole (22) is arranged in a reducing and expanding shape.

4. A vane construction having a refrigeration system as set forth in claim 2 wherein: and a hydrophilic capillary porous medium layer (25) is arranged on the inner wall of the evaporation cavity (23).

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