CN218721977U - Energy-saving post forced draught blower - Google Patents

Abstract

The utility model relates to an energy-saving post forced draught blower. The device is including a plurality of refrigerating system, refrigerating system is including the compressor, the exit of compressor is connected with the condenser, and the condenser is connected with the reservoir, and the reservoir exit end has connected gradually stop valve, drier-filter, solenoid valve, sight glass and expansion valve, still including the evaporimeter, evaporimeter one end and expansion valve switch-on, and the other end and compressor switch-on are located and are provided with the steam bypass valve between compressor and the condenser, the steam bypass valve is put through with the evaporimeter, sends into the refrigerant hot steam in the compressor to the evaporimeter in, and each refrigerating system is connected with the evaporimeter and forms independent closed circuit, and this scheme adopts many refrigerating system designs, refrigerant runner cross design, and the amount of wind, the adjustable design of wind pressure of machine, forced draught blower frequency conversion design and steam bypass design wholly control each parameter of post air supply air conditioner, are applicable to industrial production, have very strong practicality.

Description

Energy-saving post forced draught blower

Technical Field

The utility model belongs to the technical field of the post forced draught blower, especially, relate to an energy-saving post forced draught blower.

Background

The post air supply air conditioner is an air conditioning unit which directly cools, dehumidifies or heats a temporary specific place, and is specially used for temporarily supplying cold (hot) air for shipbuilding, welding, polishing, closed environment operation and other high-temperature posts in the maritime industry, so that the basic comfort level and the labor health and safety of personnel operation are ensured, and the working efficiency is also improved.

The air-out temperature of the existing post air-supply air conditioner is too low and the evaporator is easy to frost, and simultaneously, the energy consumption is higher, so the scheme adopts the design of a multi-refrigeration system, the cross design of refrigerant runners, the adjustable design of the air volume and the air pressure of a machine, the variable frequency design of an air feeder and the design of a hot air bypass, and the whole controls each parameter of the post air-supply air conditioner, thereby solving the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that current post air supply air conditioner air-out temperature is low excessively and the evaporimeter easily frosts, and the energy consumption is higher simultaneously, in order to improve its weak point, the utility model provides an energy-saving post forced draught blower.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the utility model provides an energy-saving post forced draught blower, is including a plurality of refrigerating system, refrigerating system is including the compressor, the exit of compressor is connected with the condenser, and the condenser is connected with the reservoir, and the reservoir exit end has connected gradually stop valve, drier-filter, solenoid valve, sight glass and expansion valve, still including the evaporimeter, evaporimeter one end and expansion valve switch-on, the other end and compressor switch-on are located and are provided with the hot gas bypass valve between compressor and the condenser, the hot gas bypass valve is put through with the evaporimeter, sends into the evaporimeter with the refrigerant hot steam in the compressor in, each refrigerating system is connected with the evaporimeter and is formed independent closed loop.

Preferably, a condensing fan is arranged outside the condenser, and the condensing fan guides outdoor air into the condenser.

Preferably, the system comprises a blower and a blower frequency converter, wherein the blower is communicated with the evaporator.

Preferably, a high pressure gauge and a pressure controller are arranged between the compressor and the condenser.

Preferably, a low pressure gauge and a needle valve are arranged between the evaporator and the compressor.

Preferably, the system also comprises a double-pressure controller for controlling the operation of the compressor.

The utility model discloses the during operation: the refrigerant flows to the compressor, after the refrigerant is compressed into high-temperature high-pressure vapor, the high-temperature high-pressure vapor flows into the condenser, the refrigerant releases heat in the condenser and is condensed into liquid, the liquid enters the liquid storage device, the refrigerant flows into the drying filter after passing through the stop valve after coming out of the liquid storage device, the dried and filtered refrigerant liquid passes through the electromagnetic valve and the liquid sight glass and is changed into vapor-liquid mixture under the throttling and pressure reduction of the expansion valve, the vapor enters the evaporator, the refrigerant in the evaporator absorbs the heat in the air and then becomes overheated refrigerant vapor, the refrigerant flows into the compressor and is recompressed to carry out the next cycle, one path of the refrigerant before entering the condenser is led into a hot gas bypass valve, and the hot gas bypass valve is opened or closed according to the automatic proportion of the pressure of the evaporator, and part of the hot vapor of the refrigerant is sent into the evaporator.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the unit adopts a multi-refrigerating system design, can intelligently adjust the load according to the air supply temperature in a grading manner, achieves the aim of saving energy, simultaneously prevents the uncomfortable condition of a human body caused by the excessively low cold air temperature, and improves the working efficiency of workers;

2. the cross design of the refrigerant flow channels in the evaporator is equivalent to the improvement of the evaporation area of the running refrigeration system when one refrigeration system stops, and the refrigeration running efficiency is improved;

3. the air volume and the air pressure of the machine can be adjusted, the frequency conversion design of the air feeder is adopted, the change of the air volume and the air feeding pressure head of the unit is realized not by the additional resistance formed by adjusting an air valve but by changing the operating frequency of the air feeder, the operating power of the air feeder is reduced, and the purpose of saving energy is achieved;

4. the hot gas bypass design is adopted, when only one refrigerating system operates, the over-low air outlet temperature and the frosting of an evaporator are prevented, and the evaporation temperature is controlled so as to maintain the refrigerating requirement of the unit under the low environmental temperature or the low air volume;

5. and (4) controlling the condensation pressure, namely controlling the condensation fan in a pressure control mode to enable the condensation pressure of the unit to be within the operation range.

Drawings

Fig. 1 is a schematic view of the structure flow of the present invention.

In the figure: the system comprises a compressor 1, a high-pressure gauge 2, a pressure controller 3, a condenser 4, a condensing fan 5, a liquid storage device 6, a stop valve 7, a drying filter 8, an electromagnetic valve 9, a liquid sight glass 10, an expansion valve 11, an evaporator 12, a low-pressure gauge 13, a needle valve 14, a double-pressure controller 15, a hot gas bypass valve 16, a blower 17 and a blower frequency converter 18.

Detailed Description

The technical solutions of the present application are further described with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an energy-saving post blower is provided, which comprises a plurality of refrigeration systems, each refrigeration system comprises a compressor 1, a condenser 4 is connected to an outlet of the compressor 1, the condenser 4 is connected to a liquid reservoir 6, an outlet end of the liquid reservoir 6 is sequentially connected to a stop valve 7, a drying filter 8, an electromagnetic valve 9, a liquid viewing mirror 10 and an expansion valve 11, and further comprises an evaporator 12, one end of the evaporator 12 is connected to the expansion valve 11, the other end of the evaporator is connected to the compressor 1, a hot gas bypass valve 16 is arranged between the compressor 1 and the condenser 4, the hot gas bypass valve 16 is connected to the evaporator 12, hot steam of a refrigerant in the compressor 1 is sent into the evaporator 12, and each refrigeration system is connected to the evaporator 12 to form an independent closed loop.

Specifically, a condensing fan 5 is provided outside the condenser 4, and the condensing fan 5 introduces outdoor air into the condenser 4.

Specifically, a blower 17 and a blower inverter 18 are included, and the blower 17 is connected to the evaporator 12.

Specifically, a high pressure gauge 2 and a pressure controller 3 are provided between the compressor 1 and the condenser 4.

Specifically, a low pressure gauge 13 and a needle valve 14 are provided between the evaporator 12 and the compressor 1.

Specifically, a dual pressure controller 15 for controlling the operation of the compressor 1 is also included.

When in work: the refrigerant flow direction is that the compressor 1 is opened, the refrigerant is compressed into high-temperature high-pressure vapor and then flows into the condenser 4, the refrigerant releases heat in the condenser 4 and is condensed into liquid, the liquid enters the liquid storage device 6, the refrigerant liquid which is discharged from the liquid storage device 6 passes through the stop valve 7 and then enters the drying filter 8, the refrigerant liquid which is dried and filtered passes through the electromagnetic valve 9 and the liquid sight glass 10 is changed into vapor-liquid mixture under the throttling and pressure reduction of the expansion valve 11 and then enters the evaporator 12, the refrigerant in the evaporator 12 absorbs the heat in the air and then becomes overheated refrigerant vapor, the refrigerant vapor flows into the compressor 1 and is recompressed and then circulates next time, one path of the refrigerant is led into a hot gas bypass valve 16 before entering the condenser 4, and the hot gas bypass valve 16 is opened or closed according to the automatic proportion of the pressure of the evaporator 12, and part of the refrigerant hot vapor is sent into the evaporator 12.

Outdoor air circulation: the outdoor air flows through the condenser 4 under the action of the condensing fan 5, absorbs the heat of the refrigerant and is discharged to the environment.

And (3) processing air circulation: the process air flows through the evaporator 12 by the blower 17, is cooled or dehumidified by the refrigerant, and is sent to a desired place. The frequency conversion design of the blower 17 is provided with a blower frequency converter 18, the air output of the unit and the air supply pressure head are realized by changing the operating frequency of the blower 17, the operating power of the blower 17 is reduced, and the purpose of energy conservation is achieved.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims (6)

1. An energy-saving post forced draught blower, its characterized in that: including a plurality of refrigerating system, refrigerating system is including the compressor, the exit of compressor is connected with the condenser, and the condenser is connected with the reservoir, and the reservoir exit end has connected gradually stop valve, drier-filter, solenoid valve, sight glass and expansion valve, still including the evaporimeter, evaporimeter one end and expansion valve switch-on, and the other end and compressor switch-on are located and are provided with the steam bypass valve between compressor and the condenser, the steam bypass valve is put through with the evaporimeter, sends into the refrigerant hot steam in the compressor to the evaporimeter in, and each refrigerating system is connected with the evaporimeter and forms independent closed circuit.

2. The energy-saving station blower according to claim 1, characterized in that: and a condensing fan is arranged outside the condenser and guides outdoor air into the condenser.

3. An energy-saving station blower as claimed in claim 2, characterized in that: the system comprises a blower and a blower frequency converter, wherein the blower is communicated with an evaporator.

4. An energy-saving station blower as claimed in claim 3, characterized in that: and a high pressure gauge and a pressure controller are arranged between the compressor and the condenser.

5. The energy-saving station blower according to claim 4, characterized in that: and a low-pressure meter and a needle valve are arranged between the evaporator and the compressor.

6. An energy saving station blower according to any one of claims 1 to 5, characterised in that: the double-pressure controller is used for controlling the operation of the compressor.

Images