CN213981184U

CN213981184U - Air-cooled dry rotor pump

Info

Publication number: CN213981184U
Application number: CN202023136875.4U
Authority: CN
Inventors: 陈勇
Original assignee: Constant Sz Equipment Co ltd
Current assignee: Constant Sz Equipment Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-17
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an air-cooled dry-type rotor pump, including pump package casing and permanent magnet variable frequency motor, cold air tonifying qi interface has all been seted up on pump package casing both sides surface, the inside movable mounting of pump package casing has the rotor, the vacuum interface of admitting air has been seted up to pump package casing upper surface, the exhaust interface has been seted up to pump package casing lower surface. The vacuum air inlet pressure can be according to the in-service use operating mode condition, stabilize vacuum pressure by PLC digital logic control permanent magnet variable frequency motor, both sides cold air inputs cold air tonifying qi interface after the cold air inlet silencing device falls the noise, in order to ensure that the pump can normally work under the condition of high pressure difference and high compression ratio can not overheated overload and high noise pollution, high temperature gas of exhaust can directly discharge after the exhaust silencing device amortization cooling, reduce high noise pollution, including exhaust pressure temperature detection system data real-time supervision, the safe and stable operation of more reliable protection pump.

Description

Air-cooled dry rotor pump

Technical Field

The utility model relates to an air-cooled roots pump technical field, the concrete field is an air-cooled dry-type rotor pump.

Background

Compared with the common Roots vacuum pump, the air-cooled dry rotor pump is provided with air supply backflow ports on two side surfaces of a pump body, is provided with an air supply noise reduction cooling device, introduces cooled air into a pump cavity to cool a rotor, and keeps the temperature of the rotor within a specified range, so that the air-cooled dry rotor pump can bear higher pressure difference (up to 85kPa) and cannot be overheated; the process method of the traditional air-cooled pump is that the exhaust port is connected with a heat exchanger in series, one part of gas cooled by the heat exchanger is sucked back into the pump body by the return pipeline to be cooled, the other part of gas is directly discharged to the atmosphere, cooling circulating water needs to be independently connected, a set of heat exchanger needs to be added, and the use energy consumption and the equipment cost are increased.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide an air-cooled dry-type impeller pump can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an air-cooled dry rotor pump comprises a pump unit shell and a permanent magnet variable frequency motor, wherein cold air supply interfaces are respectively arranged on the surfaces of two sides of the pump unit shell, a rotor is movably arranged in the pump unit shell, a vacuum air inlet interface is arranged on the upper surface of the pump unit shell, an air outlet interface is arranged on the lower surface of the pump unit shell, an air exhaust silencer is fixedly arranged below the pump unit shell, an air exhaust connecting pipeline is fixedly arranged between the air exhaust silencer and the air exhaust interface, a cold air inlet silencer is fixedly arranged below the cold air supply interface, an air supply connecting pipeline is fixedly arranged between the cold air supply interface and the cold air inlet silencer, an exhaust pressure temperature detection system is fixedly arranged on one side of the air exhaust silencer, and a PLC digital logic control electric cabinet is fixedly arranged on the side direction of the exhaust pressure temperature detection system, and an air inlet pressure and temperature control system is fixedly arranged above the vacuum air inlet interface.

Preferably, the number of the rotors is two, and the rotors are in meshed connection.

Preferably, a large-diameter pipeline is fixedly installed between the vacuum air inlet interface and the air inlet pressure and temperature control system, and the air inlet pressure and temperature control system is electrically connected with the PLC digital logic control electric cabinet.

Preferably, the exhaust silencer and the exhaust interface are connected and conducted through the exhaust connecting pipeline, and the cold air supply interface and the cold air intake silencer are connected and conducted through the air supply connecting pipeline.

Preferably, the permanent magnet variable frequency motor and the pump set shell are connected and conducted through a pipeline, and the permanent magnet variable frequency motor and the PLC digital logic control electric cabinet are electrically connected.

Preferably, the exhaust pressure temperature detection system is electrically connected with the PLC digital logic control electric cabinet.

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

in the utility model, the real-time input of the air inlet pressure temperature control system provides the detection signal of the PLC data logic control electric control system, and the PLC data logic outputs a frequency conversion control signal, at the moment, the permanent magnet frequency conversion motor drives the inner rotor of the pump body to operate at high speed, the pumped body is sucked from the vacuum air inlet interface to generate vacuum negative pressure, the cold air is silenced by the cold air-supplementing interfaces at two sides during the operation of the pump body through the cold air inlet silencing device in the process, the pneumatic noise and the mechanical noise generated during the high-speed operation of the pump body can be effectively reduced, at the moment, the high-temperature gas discharged from the air outlet of the pump body can be directly discharged to the atmosphere through the cooling silencing treatment after entering the exhaust silencing device, finally, the data of the pressure temperature of the discharged gas is detected in real time and transmitted to the PLC digital logic control electric cabinet, and the stable and safe operation of the whole set of the vacuum pumping system is effectively ensured finally, the vacuum acquisition is more energy-saving.

Drawings

FIG. 1 is a front view of the main structure of the present invention;

FIG. 2 shows an exhaust silencing system and an exhaust pressure temperature detecting system of the present invention;

fig. 3 shows the air supply entering the silencing system of the present invention.

In the figure: 1. a cold air supply interface; 2. a rotor; 3. a vacuum air inlet interface; 4. a pump unit housing; 5. an exhaust interface; 6. a gas supply connecting pipeline; 7. an exhaust connecting pipe; 8. an exhaust muffler device; 9. a cool air intake silencer; 10. the PLC digital logic controls the electric cabinet; 11. a permanent magnet variable frequency motor; 12. an air inlet pressure temperature control system; 13. an exhaust pressure temperature detection system.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, an air-cooled dry rotor pump comprises a pump set housing 4 and a permanent magnet variable frequency motor 11, wherein cold air supply interfaces 1 are respectively arranged on the surfaces of both sides of the pump set housing 4, a rotor 2 is movably arranged in the pump set housing 4, a vacuum air inlet interface 3 is arranged on the upper surface of the pump set housing 4, an air outlet interface 5 is arranged on the lower surface of the pump set housing 4, an air exhaust silencer 8 is fixedly arranged below the pump set housing 4, an air exhaust connecting pipeline 7 is fixedly arranged between the air exhaust silencer 8 and the air exhaust interface 5, a cold air inlet silencer 9 is fixedly arranged below the cold air supply interface 1, an air supply connecting pipeline 6 is fixedly arranged between the cold air supply interface 1 and the cold air inlet silencer 9, an air exhaust pressure temperature detection system 13 is fixedly arranged on one side of the air exhaust silencer 8, a PLC digital logic control electric cabinet 10 is fixedly arranged on the side of the exhaust pressure temperature detection system 13, an air inlet pressure and temperature control system 12 is fixedly installed above a vacuum air inlet interface 3, a pump set shell 4 is a sealing device, the vacuum air inlet interface 3 is connected to the air inlet pressure and temperature control system 12, the air pressure and temperature condition of a vacuum air inlet is monitored in real time, two pairs of three-blade rotors 2 run in opposite directions, inlet air is compressed and then is exhausted from the shell to an exhaust interface 5, high temperature, pneumatic noise and mechanical noise are generated due to high compression and high pressure difference inside a pump body in the process, in order to use the vacuum pump to run stably and quietly, a cold air inlet silencing device 9 is added in a cold air supplementing interface 1 and connected through a supplementing connecting pipeline 6, an exhaust interface 5 is connected to an exhaust silencing device 8 and connected through an exhaust connecting pipeline 7, and an exhaust pressure and temperature detection system 13 can monitor the pressure and the temperature of an exhaust port in real time, and the data are transmitted to a PLC system data logic control electric cabinet to control the permanent magnet variable frequency motor 11 to stably and stably run.

The number of the rotors 2 is two, and the rotors 2 are meshed and connected; a large-diameter pipeline is fixedly arranged between the vacuum air inlet interface 3 and the air inlet pressure and temperature control system 12, and the air inlet pressure and temperature control system 12 is electrically connected with the PLC digital logic control electric cabinet 10; the exhaust silencer 8 and the exhaust interface 5 are communicated through an exhaust connecting pipeline 7, and the cold air supplementing interface 1 and the cold air inlet silencer 9 are communicated through an air supplementing connecting pipeline 6; the permanent magnet variable frequency motor 11 is connected and conducted with the pump set shell 4 through a pipeline, and the permanent magnet variable frequency motor 11 is electrically connected with the PLC digital logic control electric cabinet 10; exhaust pressure temperature detecting system 13 and PLC digital logic control electric cabinet 10 electric connection, the cold air that cold air tonifying qi interface 1 inserts admits air silencing device 9 can the reduction aerodynamic noise and the mechanical noise of very big degree, guarantee simultaneously that the tonifying qi has sufficient cold air to get into, the exhaust silencing device 8 that the exhaust interface 5 inserts can the reduction aerodynamic noise and the mechanical noise of very big degree, the exhaust pressure temperature detecting system 13 that inserts simultaneously can real-time feedback data collection give the PLC system, air inlet pressure temperature control system 12 that vacuum admission interface 3 inserts can real-time feedback data collection give the PLC system in order to guarantee the steady operation of system, PLC digital logic control electric cabinet 10 can effectively control permanent magnet variable frequency motor 11 steady output.

It should be noted that, the utility model relates to an air-cooled dry-type rotor pump, theory of operation does when using, the body is pumped out by what produces in the large-scale manufacturing equipment production process, be connected to this vacuum pumping system air-cooled dry-type rotor pump through middle pipeline valve, provide the vacuum process of large-scale manufacturing demand through air inlet pressure temperature control system 12, it moves at a high speed through three leaf rotor 2 behind the body entering pump to be pumped out, again by the cold air tonifying qi interface 1 air intake of both sides, bring out after cooling for inner chamber and rotor 2, it discharges in the atmosphere with the high-temperature gas amortization cooling to get into exhaust silencing device 8, the effective reliable passback data of exhaust pressure temperature detecting system 13 reaches PLC digital logic control electricity cabinet 10, permanent magnet variable frequency motor 11 can ensure by the operation interval of gas range at the broad, thereby improve the energy-saving management of system.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An air-cooled dry rotory pump characterized by: the pump set comprises a pump set shell (4) and a permanent magnet variable frequency motor (11), cold air supply interfaces (1) are arranged on the surfaces of the two sides of the pump set shell (4), a rotor (2) is movably arranged in the pump set shell (4), a vacuum air inlet interface (3) is arranged on the upper surface of the pump set shell (4), an air exhaust interface (5) is arranged on the lower surface of the pump set shell (4), an air exhaust silencer (8) is fixedly arranged below the pump set shell (4), an air exhaust connecting pipeline (7) is fixedly arranged between the air exhaust silencer (8) and the air exhaust interface (5), a cold air inlet silencer (9) is fixedly arranged below the cold air supply interfaces (1), and an air supply connecting pipeline (6) is fixedly arranged between the cold air supply interfaces (1) and the cold air inlet silencer (9), exhaust pressure temperature detecting system (13) is fixedly installed on one side of exhaust silencer (8), PLC digital logic control electric cabinet (10) is fixedly installed on the side of exhaust pressure temperature detecting system (13), and air inlet pressure temperature control system (12) is fixedly installed above vacuum air inlet interface (3).

2. An air-cooled dry rotory pump according to claim 1, wherein: the number of the rotors (2) is two, and the rotors (2) are connected in a meshed mode.

3. An air-cooled dry rotory pump according to claim 1, wherein: a large-diameter pipeline is fixedly installed between the vacuum air inlet interface (3) and the air inlet pressure and temperature control system (12), and the air inlet pressure and temperature control system (12) is electrically connected with the PLC digital logic control electric cabinet (10).

4. An air-cooled dry rotory pump according to claim 1, wherein: exhaust silencing device (8) with pass through between exhaust interface (5) exhaust connecting tube (7) are connected and are switched on, cold air tonifying qi interface (1) with pass through between cold air inlet silencing device (9) tonifying qi connecting tube (6) are connected and are switched on.

5. An air-cooled dry rotory pump according to claim 1, wherein: the permanent magnet variable frequency motor (11) is connected and conducted with the pump set shell (4) through a pipeline, and the permanent magnet variable frequency motor (11) is electrically connected with the PLC digital logic control electric cabinet (10).

6. An air-cooled dry rotory pump according to claim 1, wherein: the exhaust pressure temperature detection system (13) is electrically connected with the PLC digital logic control electric cabinet (10).