CN215863787U

CN215863787U - Energy-saving dehumidifier based on double-circulation structure

Info

Publication number: CN215863787U
Application number: CN202122248640.2U
Authority: CN
Inventors: 蔡慧; 张欣
Original assignee: Xinfeng Zhilian Hangzhou Technology Co ltd
Current assignee: Xinfeng Zhilian Hangzhou Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-18
Anticipated expiration: 2031-09-16

Abstract

The utility model relates to the technical field of dehumidifiers and discloses an energy-saving dehumidifier based on a double-circulation structure, which comprises an air outlet, wherein a backward-tilting centrifugal fan is arranged on the right side of the air outlet, a condenser is arranged on the right side of the backward-tilting centrifugal fan, a water-vapor separator is arranged on the right side of the condenser, an evaporator is arranged on the right side of the water-vapor separator, the condenser is connected with the evaporator, a cold water surface cooler is arranged on the right side of the evaporator, an air filter is arranged on the right side of the cold water surface cooler, an air inlet communicated with the air filter is arranged on the right side of the air filter, a strong electric box and a weak electric box are arranged above the backward-tilting centrifugal fan, a compressor respectively connected with the condenser and the evaporator is arranged on the right side of the strong electric box, a plate-type heat exchanger connected with the condenser is arranged on the right side of the compressor, and the plate-type heat exchanger is arranged on the right side of the compressor: the cold energy of the refrigerating water of the refrigerating unit is recycled to cool the refrigerant, so that the refrigerant heats the air in the condenser to a preset temperature and can be controlled.

Description

Energy-saving dehumidifier based on double-circulation structure

Technical Field

The utility model relates to the technical field of dehumidifiers, in particular to an energy-saving dehumidifier based on a double-circulation structure.

Background

In modern buildings, a dehumidifier is required to regulate and control the air quality and improve the environmental comfort. The existing scheme is that cold water or refrigerant passes through a cooling coil pipe, air flows through the surface of the coil pipe or fins to be cooled, moisture is removed after the air is cooled to a required dew point temperature, a dehumidification effect is achieved, then the air is heated to a set temperature, and the air is sent into a room.

The traditional dehumidifier has the following defects: firstly, outdoor air is directly introduced for dehumidification, the energy consumption is large, the dehumidified air is at the dew point temperature, and is easily uncomfortable when being directly sent indoors and needs to be reheated to a proper temperature, so that a large amount of electric energy also needs to be consumed, and the energy efficiency ratio of the system is low; and secondly, an energy-saving optimization method is lacked, so that the dehumidifier can perform dehumidification as required according to the change of the moisture load of the control area.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an energy-saving dehumidifier based on a double-circulation structure, and solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides an energy-conserving dehumidifier based on dual cycle structure, includes the air outlet, the right side of air outlet is provided with hypsokinesis centrifugal fan, and hypsokinesis centrifugal fan's right side is provided with the condenser, and the condenser right side is provided with the vapor separation ware, and the right side of vapor separation ware is provided with the evaporimeter, and the condenser is connected with the evaporimeter, and the right side of evaporimeter is provided with the cold water meter cold ware, and the right side of cold water meter cold ware is provided with air cleaner, air cleaner's right side is provided with the air intake with air cleaner intercommunication, and hypsokinesis centrifugal fan's top is provided with strong case and weak electronic box, and strong case's right side is provided with the compressor of being connected with condenser and evaporimeter respectively, and the right side of compressor is provided with the plate heat exchanger who is connected with the condenser.

Preferably, an oil separator is connected between the compressor and the plate heat exchanger, and the oil separator is simultaneously communicated with the condenser.

Preferably, a liquid storage tank is connected between the condenser and the evaporator.

Preferably, the pipeline of the liquid storage tank connected with the evaporator is provided with an expansion valve.

Preferably, a water flow regulating valve is arranged on the cold water surface cooler.

(III) advantageous effects

Compared with the prior art, the utility model provides an energy-saving dehumidifier based on a double-circulation structure, which has the following beneficial effects:

1. according to the energy-saving dehumidifier based on the double-circulation structure, the system fully and reasonably utilizes the cold energy of chilled water of a refrigerating unit and the heat release energy of a compressor refrigerant to pre-cool and reheat ventilation air, and most of moisture load is treated. The heat pump circularly processes the residual wet load, and the whole system can efficiently run due to small temperature rise of the heat pump. Compared with the traditional dehumidification method, the energy efficiency is greatly improved.

2. The energy-saving dehumidifier based on the double-circulation structure has the same basic principle as the traditional dehumidifier, the technology is well known in the industry, and the modular design ensures that the dehumidifier is easy to install and operate.

3. According to the energy-saving dehumidifier based on the double-circulation structure, the system is provided with a fault detection algorithm, and common faults in the system can be detected, wherein the common faults include filter blockage, sensor and actuator faults, loss of controllability and the like. Periodic detection is not needed any more, and only the components need to be replaced in time when the system detects a fault.

4. The energy-saving dehumidifier based on the double-circulation structure has the advantages that the energy of a dehumidification system is saved, the running capacities of a refrigerating unit, an air treatment unit, a water and air pipeline system and the like can be reduced, and the investment cost is reduced.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. an air outlet; 2. a backward tilting centrifugal fan; 3. a condenser; 4. a water-vapor separator; 5. an evaporator; 6. a cold water surface cooler; 7. an air filter; 8. an air inlet; 9. a plate heat exchanger; 10. a water flow regulating valve; 11. an expansion valve; 12. an oil separator; 13. a liquid storage tank; 14. a compressor; 15. a strong electric box; 16. a weak current box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1, an energy-saving dehumidifier based on a dual cycle structure, including an air outlet 1, a backward-inclined centrifugal fan 2 is disposed on the right side of the air outlet 1, a condenser 3 is disposed on the right side of the backward-inclined centrifugal fan 2, a water-vapor separator 4 is disposed on the right side of the condenser 3, an evaporator 5 is disposed on the right side of the water-vapor separator 4, the condenser 3 is connected with the evaporator 5, a cold water surface cooler 6 is disposed on the right side of the evaporator 5, an air filter 7 is disposed on the right side of the cold water surface cooler 6, an air inlet 8 communicated with the air filter 7 is disposed on the right side of the air filter 7, a strong power box 15 and a weak power box 16 are disposed above the backward-inclined centrifugal fan 2, a compressor 14 and a compressor 14 are disposed on the right side of the strong power box 15, and the compressor is respectively connected with the condenser 3 and the evaporator 5: for compressing the refrigerant and producing high-temperature, high-pressure gas, the right side of the compressor 14 is provided with a plate heat exchanger 9 connected to the condenser 3, the plate heat exchanger 9: the cold energy of the refrigerating water of the refrigerating unit is recycled to cool the refrigerant, so that the refrigerant heats the air in the condenser 3 to a preset temperature and can be controlled. And no matter the refrigeration water-cooling energy or the heat energy of the refrigerant, the refrigeration water-cooling energy or the heat energy of the refrigerant are recycled, so that a large amount of electric energy is saved for the system.

The dehumidifier system has three coil pipes in one row from the air inlet 8 to the air outlet 1 (right → left), and the three coil pipes are respectively: the water-cooling air cooler comprises a cold water surface cooler 6, an evaporator 5, a condenser 3 and a water-vapor separator 4, wherein the water-vapor separator 4 is arranged between the evaporator and the condenser, an air filter 7 is arranged at an air inlet 8, and a fan 2 is arranged at an air outlet 1. One row of upper air inlets 8 to the air outlet 1 are respectively as follows: the device comprises a plate heat exchanger 9, a water flow regulating valve 10, an expansion valve 11, an oil separator 12, a liquid storage tank 13, a compressor 14, a strong current box 15 and a weak current box 16.

Further, an oil separator 12 is connected between the compressor 14 and the plate heat exchanger 9, the oil separator 12 is simultaneously communicated with the condenser 3, and the oil separator 12: the lubricating oil in the high pressure vapor discharged from the refrigerant compressor 14 is separated to ensure safe and efficient operation of the apparatus.

Further, a liquid storage tank 13 is connected between the condenser 3 and the evaporator 5, and the liquid storage tank 13: storing the liquid component in the refrigerant to reduce the load of the condenser 3; the heat transfer effect of the condenser 3 is prevented from being influenced by the fact that the heat transfer area is reduced due to excessive accumulation of the condensate in the condenser 3.

Further, an expansion valve 11 is installed on a pipeline of the liquid storage tank 13 connected with the evaporator 5, and the expansion valve 11: the compressor speed and the expansion valve opening are adjusted to control the evaporator 5 pressure so that the evaporator 5 temperature reaches the set point.

Further, a water flow regulating valve 10 is arranged on the cold water surface cooler 6.

The double cycles are a high-temperature chilled water pre-cooling cycle and a compressor (heat pump) refrigerant cycle, i.e., a pre-cooling loop and a heat pump loop, respectively.

A pre-cooling loop: when entering into the dehumidifier, the chilled water provided by the central refrigerating unit is divided into two main water inlets and a bypass branch, and the flow is controlled by a two-way water valve 10. The chilled water at the main water inlet enters the cold water surface cooler 6 to pre-cool and dehumidify the ventilation, and the working principle is that the chilled water with the temperature lower than that of outdoor air and the outdoor air are subjected to heat exchange in the cold water surface cooler 6 to take away heat in the air, so that the air reaches a preset temperature. This circuit handles most of the load of the dehumidifier (around 75%) by means of the cold energy provided by the central refrigeration system.

A heat pump circuit: the refrigerant after operation of the compressor 14 is a high-temperature and high-pressure gas, and flows to the plate heat exchanger 9 first. In the plate heat exchanger 9, the chilled water from the bypass branch is used for cooling the refrigerant, then the refrigerant enters the condenser 3 for cooling and is changed into low-temperature high-pressure liquid, and the heat released by the low-temperature high-pressure liquid is used for heating the air supply and is sent into the room. The refrigerant is intercepted by the electronic expansion valve 11 and changed into low-temperature low-pressure liquid, flows into the evaporator 5, is gasified in the evaporator 5 to absorb heat, so that moisture in the air is condensed, and further is dehumidified to the target humidity. Finally, the refrigerant is a low temperature and low pressure gas that is returned to the compressor 14.

The outdoor air is filtered and then enters a dehumidifier, and is cooled to a preset temperature through a cold water surface cooler 6; then flows through the evaporator 5 side of the compressor 14 to deeply dehumidify the air to the indoor required humidity; then, the air passes through a condenser 3, is heated to a desired indoor temperature, and is sent to the indoor.

Controlling the opening degree of a main water valve 10 in the precooling loop to keep the temperature of the precooling loop unchanged; the air supply temperature is determined by indoor requirements, the chilled water and the refrigerant exchange heat in the plate heat exchanger 9, and the opening degree of a bypass branch water valve 10 flowing to the heat exchanger is controlled to control the heating temperature; the humidity of the dehumidified air is determined by the indoor humidity load, the dew point temperature of the evaporator 5 is the control target, and the humidity of the supplied air is controlled by controlling the frequency of the electronic expansion valve 11 and the compressor 14.

The system establishes a cooling dehumidification model and an energy consumption model, and establishes a system energy-saving optimization method by taking the lowest running energy cost as a target on the premise of meeting the indoor humidity requirement, and system parameters including precooling temperature, evaporator dew-point temperature, compressor running frequency, opening degree of each valve and the like are optimized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-conserving dehumidifier based on dual cycle structure, includes air outlet (1), its characterized in that: a backward tilting centrifugal fan (2) is arranged on the right side of the air outlet (1), a condenser (3) is arranged on the right side of the backward tilting centrifugal fan (2), a water-vapor separator (4) is arranged on the right side of the condenser (3), an evaporator (5) is arranged on the right side of the water-vapor separator (4), the condenser (3) is connected with the evaporator (5), a cold water surface cooler (6) is arranged on the right side of the evaporator (5), an air filter (7) is arranged on the right side of the cold water surface cooler (6), the air conditioner is characterized in that an air inlet (8) communicated with the air filter (7) is formed in the right side of the air filter (7), a strong electric box (15) and a weak electric box (16) are arranged above the backward tilting centrifugal fan (2), a compressor (14) connected with the condenser (3) and the evaporator (5) respectively is arranged on the right side of the strong electric box (15), and a plate type heat exchanger (9) connected with the condenser (3) is arranged on the right side of the compressor (14).

2. The energy-saving dehumidifier based on the double-circulation structure as claimed in claim 1, wherein: an oil separator (12) is connected between the compressor (14) and the plate heat exchanger (9), and the oil separator (12) is simultaneously communicated with the condenser (3).

3. The energy-saving dehumidifier based on the double-circulation structure as claimed in claim 1, wherein: a liquid storage tank (13) is connected between the condenser (3) and the evaporator (5).

4. The energy-saving dehumidifier based on the double-circulation structure as claimed in claim 3, wherein: an expansion valve (11) is arranged on a pipeline of the liquid storage tank (13) connected with the evaporator (5).

5. The energy-saving dehumidifier based on the double-circulation structure as claimed in claim 1, wherein: and a water flow regulating valve (10) is arranged on the cold water surface cooler (6).