CN107477903A - The Gas-supplying enthalpy-increasing system and its control method of a kind of economizer - Google Patents
The Gas-supplying enthalpy-increasing system and its control method of a kind of economizer Download PDFInfo
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- CN107477903A CN107477903A CN201710754434.4A CN201710754434A CN107477903A CN 107477903 A CN107477903 A CN 107477903A CN 201710754434 A CN201710754434 A CN 201710754434A CN 107477903 A CN107477903 A CN 107477903A
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- Prior art keywords
- expansion valve
- electric expansion
- valve
- temperature sensor
- magnetic valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention relates to heat pump air conditioner technical field, specifically be a kind of economizer Gas-supplying enthalpy-increasing system and its control method, Gas-supplying enthalpy-increasing system includes Gas-supplying enthalpy-increasing compressor (1), four-way valve (2), water-side heat (3), air-side heat exchanger (4), economizer (5), magnetic valve (6), the first electric expansion valve (7) and the second electric expansion valve (8)；The first outlet (14) of economizer (5) is connected by the first electric expansion valve (7) with the one end of air-side heat exchanger (4) away from four-way valve (2), and the second outlet (15) of economizer (5) is connected by the pipeline between the second electric expansion valve (8) and the first outlet (14) and the first electric expansion valve (7) of economizer (5).A kind of flow that can facilitate, rationally control economizer heat exchange medium is provided so as to ensure the Gas-supplying enthalpy-increasing system of the economizer of reliable operation.
Description
Technical field
The present invention relates to heat pump air conditioner technical field, specifically be a kind of economizer Gas-supplying enthalpy-increasing system and its control
Method.
Background technology
As northern coal changes the progress of electricity, the usage amount of the air source heat pump water dispenser of low form is increasing, northern area
Because winter area surroundings temperature is relatively low, therefore air source heat pump producer uses the compressor of low form, in the pressure of low form
What use was most wide inside contracting machine is exactly Gas-supplying enthalpy-increasing compressor, and such compressor adds the mode of second vapor injection by using economizer
The problem of high heat exchange amount of source pump delivery temperature is low under low circumstance temperature is overcome well.
But the Gas-supplying enthalpy-increasing system of economizer of the prior art is caused due to unreasonable to Gas-supplying enthalpy-increasing system design
There is the situation of substantial amounts of compressor damage in the market, has had a strong impact on that the heating of user uses.
The content of the invention
Economizer heat exchange medium convenient, reasonable can be controlled the technical problem to be solved by the invention is to provide a kind of
Flow is so as to ensureing the Gas-supplying enthalpy-increasing system of the economizer of reliable operation.
In order to solve the above technical problems, a kind of Gas-supplying enthalpy-increasing system of economizer of the present invention, including Gas-supplying enthalpy-increasing compression
Machine, four-way valve, water-side heat, air-side heat exchanger, economizer, magnetic valve, the first electric expansion valve and the second electronic expansion
Valve；Characterized in that, the exhaust outlet of the Gas-supplying enthalpy-increasing compressor be connected with four-way valve after respectively with water-side heat, air side
The air entry of heat exchanger and Gas-supplying enthalpy-increasing compressor connects, and the first import of the other end and economizer of water-side heat connects
Connect, the second import of economizer is connected by magnetic valve with the gas supplementing opening of Gas-supplying enthalpy-increasing compressor, and the first outlet of economizer is led to
Cross the first electric expansion valve to be connected with the one end of air-side heat exchanger away from four-way valve, the second outlet of economizer passes through the second electricity
Pipeline connection between the first outlet of sub- expansion valve and economizer and the first electric expansion valve.
Preferably, a kind of Gas-supplying enthalpy-increasing system of economizer also includes
First temperature sensor, the temperature in the pipeline between exhaust outlet and four-way valve for detecting Gas-supplying enthalpy-increasing compressor
Angle value T1 simultaneously forms temperature signal；
Second temperature sensor, for detecting the temperature in the pipeline between magnetic valve and the gas supplementing opening of Gas-supplying enthalpy-increasing compressor
Angle value T2 simultaneously forms temperature signal；
Three-temperature sensor, for detecting in the pipeline between the second outlet of economizer and the second electric expansion valve
Temperature value T3 simultaneously forms temperature signal；
Signal reception processing and control module, for receiving the first temperature sensor, second temperature sensor and the 3rd
The temperature signal of temperature sensor, and according to the first temperature sensor, second temperature sensor and three-temperature sensor
Temperature signal judge whether to meet the condition of the first electric expansion valve of regulation and control, the second electric expansion valve and magnetic valve, if meeting
Regulate and control the first electric expansion valve, the second electric expansion valve and magnetic valve condition, then signal reception processing and control module are to first
Electric expansion valve, the second electric expansion valve and magnetic valve send corresponding control signal；
Signal reception processing and control module pass with the first temperature sensor, second temperature sensor, the 3rd temperature respectively
Sensor, magnetic valve, the first electric expansion valve and the electrical connection of the second electric expansion valve.
Preferably, the temperature according to the first temperature sensor, second temperature sensor and three-temperature sensor
Signal judges whether to meet the condition of the first electric expansion valve of regulation and control, the second electric expansion valve and magnetic valve, if meeting regulation and control the
One electric expansion valve, the second electric expansion valve and magnetic valve condition, then signal reception processing and control module are swollen to the second electronics
Swollen valve and magnetic valve send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and closes the second electronic expansion
Valve；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes magnetic valve and closes the second electronic expansion
Valve；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and opens the second electronics
Expansion valve to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve and opens the
Two electric expansion valves to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens the first electric expansion valve of magnetic valve and increase
Aperture (T1-105) step, open the second electric expansion valve 8 to X walk aperture；
Wherein, X value is the integer between 55 to 65.For example, X value can be 55, can also be 65, can also be 56
Or 57 or 58 or 59 or 60 or 61 or 62 or 63 or 64.
After said structure, have the following advantages that：
1. because the first outlet of economizer passes through one of the first electric expansion valve and air-side heat exchanger away from four-way valve
End connection, the second outlet of economizer by the first outlet and the first electric expansion valve of the second electric expansion valve and economizer it
Between pipeline connection, so, the first electric expansion valve, the second electric expansion valve mating reaction under, can conveniently control heat
Exchange media enters the flow of economizer, so as to ensure that the flow of heat exchange medium is reasonable, so as to ensure Gas-supplying enthalpy-increasing compressor
Reliability.Heat exchange medium can be refrigerant.
2. magnetic valve has the function of flow break-make, ensure to be not in back the situation of liquid during compressor operating, so as to ensure
The reliability of Gas-supplying enthalpy-increasing compressor.
3. in the temperature detection effect of the first temperature sensor, second temperature sensor, three-temperature sensor and signal
In the presence of the signal transacting and control of reception processing and control module so that the first electric expansion valve, the second electric expansion valve,
The control of magnetic valve is reasonable, is further ensured that the reliability of Gas-supplying enthalpy-increasing compressor.
In addition, the invention also discloses a kind of control method of the Gas-supplying enthalpy-increasing system of economizer, it comprises the following steps：
S1：The temperature in pipeline between the exhaust outlet and four-way valve of first temperature sensor detection Gas-supplying enthalpy-increasing compressor
Value T1 simultaneously forms temperature signal；Second temperature sensor detects the pipeline between magnetic valve and the gas supplementing opening of Gas-supplying enthalpy-increasing compressor
Interior temperature value T2 simultaneously forms temperature signal；The second outlet and the second electric expansion valve of three-temperature sensor detection economizer
Between pipeline in temperature value T3 and form temperature signal；
S2：Signal reception processing and control module receive the first temperature sensor, second temperature sensor and the 3rd temperature
The temperature signal of sensor is spent, and according to the first temperature sensor, second temperature sensor and three-temperature sensor
Temperature signal judges whether the condition for meeting the first electric expansion valve of regulation and control, the second electric expansion valve and magnetic valve, if meeting tune
The first electric expansion valve, the second electric expansion valve and magnetic valve condition are controlled, then signal reception processing and control module are electric to first
Sub- expansion valve, the second electric expansion valve and magnetic valve send corresponding control signal；
S3：First electric expansion valve, the second electric expansion valve and the reception processing of magnetic valve reception signal and control module
Control signal simultaneously makes respective action.
It is described to be judged according to the temperature signal of the first temperature sensor, second temperature sensor and three-temperature sensor
Whether the condition of regulation and control first electric expansion valve, second electric expansion valve and magnetic valve is met, if it is swollen to meet the first electronics of regulation and control
Swollen valve, the second electric expansion valve and magnetic valve condition, then signal reception processing and control module are to the first electric expansion valve, second
Electric expansion valve and magnetic valve send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and closes the second electronic expansion
Valve；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes magnetic valve and closes the second electronic expansion
Valve；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and opens the second electronics
Expansion valve to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve and opens the
Two electric expansion valves to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve and opens the second electronics
Expansion valve is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens the first electric expansion valve of magnetic valve and increase
(T1-105) step aperture, the second electric expansion valve is opened to X step apertures；
Wherein, X value is the integer between 55 to 65.For example, X value can be 55, can also be 65, can also be 56
Or 57 or 58 or 59 or 60 or 61 or 62 or 63 or 64.
Preferably, judge whether to meet the first electric expansion valve of regulation and control, the second electric expansion valve and magnetic valve in step S2
Condition cycle be 50~70 seconds.
By the above method, in the first temperature sensor, second temperature sensor, the temperature detection of three-temperature sensor
In the presence of effect and signal reception processing and the signal transacting of control module and control so that the first electric expansion valve, second
Electric expansion valve, the control of magnetic valve are reasonable, are further ensured that the reliability of Gas-supplying enthalpy-increasing compressor.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the Gas-supplying enthalpy-increasing system of economizer of the present invention.
Fig. 2 is a kind of electrical connection schematic diagram of the Gas-supplying enthalpy-increasing system of economizer of the present invention.
Fig. 3 is a kind of schematic flow sheet of the control method of the Gas-supplying enthalpy-increasing system of economizer of the present invention.
Wherein：
1st, Gas-supplying enthalpy-increasing compressor；2nd, four-way valve；3rd, water-side heat；4th, air-side heat exchanger；5th, economizer；6th, electromagnetism
Valve；7th, the first electric expansion valve；8th, the second electric expansion valve；9th, exhaust outlet；10th, air entry；11st, the first import；12nd, second enters
Mouthful；13rd, gas supplementing opening；14th, first outlet；15th, second outlet；16th, the first temperature sensor；17th, second temperature sensor；18、
Three-temperature sensor.
Embodiment
The essence that those skilled in the art pass on them to work to others skilled in the art is will hereinafter use to lead to
The term often used describes the inventive concept of the disclosure.However, these inventive concepts can be presented as many different forms, because
And it should not be considered limited to embodiments described herein.These embodiments are provided so that present disclosure is more detailed and complete
It is whole, and its scope included is completely passed on to those skilled in the art.It must also be noted that these embodiments do not have to be mutually exclusive.Come
It may be assumed that into from the component of one embodiment, step or element and may be present or use in another embodiment.This public affairs is not being departed from
In the case of the scope for the embodiment opened, it can substitute shown with diversified alternative and/or equivalent implementations and retouch
The specific embodiment stated.The application is intended to cover any modification or modification of embodiments discussed herein.For the skill of this area
Substantially some aspects in described aspect can be used only to put into practice alternative for art personnel.Herein for explanation
Purpose, specific numeral, material and configuration are described in embodiment, however, these are special no by the technical staff in field
In the case of determining details, alternative embodiment can also be put into practice.In other cases, may be omitted or simplified well-known
Feature, so as not to make illustrative embodiment be difficult to understand.
In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying phase
To importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " being provided with ", " pacifies
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Such as Fig. 1-3, in one embodiment, a kind of Gas-supplying enthalpy-increasing system of economizer, including Gas-supplying enthalpy-increasing compressor 1,
Four-way valve 2, water-side heat 3, air-side heat exchanger 4, economizer 5, magnetic valve 6, the first electric expansion valve 7 and the second electronics are swollen
Swollen valve 8；Characterized in that, the exhaust outlet 9 of the Gas-supplying enthalpy-increasing compressor 1 be connected with four-way valve 2 after respectively with water-side heat
3rd, the air entry 10 of air-side heat exchanger 4 and Gas-supplying enthalpy-increasing compressor 1 connects, the other end and the economizer 5 of water-side heat 3
The first import 11 connect, the second import 12 of economizer 5 is connected by the gas supplementing opening 13 of magnetic valve 6 and Gas-supplying enthalpy-increasing compressor 1
Connect, the first outlet 14 of economizer 5 is connected by the first electric expansion valve 7 and the one end of air-side heat exchanger 4 away from four-way valve 2
Connect, the second outlet 15 of economizer 5 passes through the electronic expansion of first outlet 14 and first of the second electric expansion valve 8 and economizer 5
Pipeline connection between valve 7.
A kind of Gas-supplying enthalpy-increasing system of economizer also includes
First temperature sensor 16, for detecting the pipeline between the exhaust outlet 9 of Gas-supplying enthalpy-increasing compressor 1 and four-way valve 2
Interior temperature value T1 simultaneously forms temperature signal；
Second temperature sensor 17, for detecting the pipeline between magnetic valve 6 and the gas supplementing opening 13 of Gas-supplying enthalpy-increasing compressor 1
Interior temperature value T2 simultaneously forms temperature signal；
Three-temperature sensor 18, the pipe between the electric expansion valve 8 of second outlet 15 and second for detecting economizer 5
Temperature value T3 in road simultaneously forms temperature signal；
Signal reception processing and control module, for receive the first temperature sensor 16, second temperature sensor 17 and
The temperature signal of three-temperature sensor 18, and according to the first temperature sensor 16, second temperature sensor 17 and the 3rd
The temperature signal of temperature sensor 18 judges whether to meet the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and magnetic valve
6 condition, if meeting the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and the condition of magnetic valve 6, signal reception processing
With control module corresponding control signal is sent to the first electric expansion valve 7, the second electric expansion valve 8 and magnetic valve 6；
Signal reception processing and control module are warm with the first temperature sensor 16, second temperature sensor the 17, the 3rd respectively
Degree sensor 18, magnetic valve 6, the first electric expansion valve 7 and the second electric expansion valve 8 electrically connect.
It is described to be believed according to the temperature of the first temperature sensor 16, second temperature sensor 17 and three-temperature sensor 18
Number judge whether the condition for meeting the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and magnetic valve 6, if meeting regulation and control the
One electric expansion valve 7, the second electric expansion valve 8 and the condition of magnetic valve 6, then signal reception processing and control module are to the second electronics
Expansion valve 8 and magnetic valve 6 send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and closes the second electronic expansion
Valve 8；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes magnetic valve 6 and closes the second electronic expansion
Valve 8；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the
Two electric expansion valves 8 to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the second electronics
Expansion valve 8 is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens the first electric expansion valve of magnetic valve 6 and increase
7 aperture (T1-105) step, the second electric expansion valve 8 is opened to X step apertures；
Wherein, X value is the integer between 55 to 65.For example, X value can be 55, can also be 65, can also be 56
Or 57 or 58 or 59 or 60 or 61 or 62 or 63 or 64.
In addition, the invention also discloses a kind of control method of the Gas-supplying enthalpy-increasing system of economizer, it comprises the following steps：
S1：In pipeline between the exhaust outlet 9 and four-way valve 2 of first temperature sensor 16 detection Gas-supplying enthalpy-increasing compressor 1
Temperature value T1 and form temperature signal；Second temperature sensor 17 detects the gas supplementing opening of magnetic valve 6 and Gas-supplying enthalpy-increasing compressor 1
Temperature value T2 in pipeline between 13 simultaneously forms temperature signal；Three-temperature sensor 18 detects the second outlet of economizer 5
The 15 and temperature value T3 in the second pipeline between electric expansion valve 8 simultaneously forms temperature signal；
S2：Signal reception processing and control module receive the first temperature sensor 16, second temperature sensor 17 and the
The temperature signal of three-temperature sensor 18, and according to the first temperature sensor 16, the temperature of second temperature sensor 17 and the 3rd
The temperature signal of degree sensor 18 judges whether to meet the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and magnetic valve 6
Condition, if meeting the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and the condition of magnetic valve 6, signal reception processing
With control module corresponding control signal is sent to the first electric expansion valve 7, the second electric expansion valve 8 and magnetic valve 6；
S3：First electric expansion valve 7, the second electric expansion valve 8 and the reception signal reception processing of magnetic valve 6 and control module
Control signal and make respective action.
It is described to be believed according to the temperature of the first temperature sensor 16, second temperature sensor 17 and three-temperature sensor 18
Number judge whether the condition for meeting the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and magnetic valve 6, if meeting regulation and control the
One electric expansion valve 7, the second electric expansion valve 8 and the condition of magnetic valve 6, then signal reception processing and control module are to the first electronics
Expansion valve 7, the second electric expansion valve 8 and magnetic valve 6 send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and closes the second electronic expansion
Valve 8；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes magnetic valve 6 and closes the second electronic expansion
Valve 8；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens magnetic valve 6 and opens the second electricity
Sub- expansion valve 8 is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the
Two electric expansion valves 8 to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve 6 and opens the second electronics
Expansion valve 8 is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens the first electric expansion valve of magnetic valve 6 and increase
7 (T1-105) step apertures, the second electric expansion valve 8 is opened to X step apertures；
Wherein, X value is the integer between 55 to 65, for example, X value can be 55, can also be 65, can also be 56
Or 57 or 58 or 59 or 60 or 61 or 62 or 63 or 64.
Preferably, judge whether to meet the first electric expansion valve 7 of regulation and control, the second electric expansion valve 8 and electromagnetism in step S2
The cycle of the condition of valve 6 is 50~70 seconds.For example, the cycle can be either 70 seconds or 60 seconds 50 seconds.
By the above method, in the first temperature sensor, second temperature sensor, the temperature detection of three-temperature sensor
In the presence of effect and signal reception processing and the signal transacting of control module and control, in different temperature sections, the first electricity
Sub- expansion valve, the second electric expansion valve, magnetic valve make corresponding action according to the change of temperature so that the first electronic expansion
Valve, the second electric expansion valve, the control of magnetic valve are reasonable, so as to ensure that the flow of heat exchange medium is reasonable, so as to further protect
Demonstrate,prove the reliability of Gas-supplying enthalpy-increasing compressor.
It is described above, only it is preferably feasible implementation example of the invention, it is impossible to therefore limit to the interest field of the present invention,
For those skilled in the art, it is all made with technical scheme and technical concept other are various corresponding
Change should all belong within the protection domain of the claims in the present invention.
Claims (6)
1. a kind of Gas-supplying enthalpy-increasing system of economizer, including Gas-supplying enthalpy-increasing compressor (1), four-way valve (2), water-side heat (3),
Air-side heat exchanger (4), economizer (5), magnetic valve (6), the first electric expansion valve (7) and the second electric expansion valve (8)；It is special
Sign is, the exhaust outlet (9) of the Gas-supplying enthalpy-increasing compressor (1) be connected with four-way valve (2) after respectively with water-side heat (3),
The air entry (10) of air-side heat exchanger (4) and Gas-supplying enthalpy-increasing compressor (1) connect, the other end of water-side heat (3) with
The first import (11) connection of economizer (5), the second import (12) of economizer (5) pass through magnetic valve (6) and Gas-supplying enthalpy-increasing pressure
Gas supplementing opening (13) connection of contracting machine (1), the first outlet (14) of economizer (5) pass through the first electric expansion valve (7) and air side
The one end of heat exchanger (4) away from four-way valve (2) connects, and the second outlet (15) of economizer (5) passes through the second electric expansion valve (8)
Pipeline between the first outlet (14) and the first electric expansion valve (7) of economizer (5) is connected.
2. according to a kind of Gas-supplying enthalpy-increasing system of economizer described in claim 1, it is characterised in that a kind of economizer
Gas-supplying enthalpy-increasing system also includes
First temperature sensor (16), for detecting between the exhaust outlet (9) of Gas-supplying enthalpy-increasing compressor (1) and four-way valve (2)
Temperature value T1 in pipeline simultaneously forms temperature signal；
Second temperature sensor (17), for detecting between magnetic valve (6) and the gas supplementing opening (13) of Gas-supplying enthalpy-increasing compressor (1)
Temperature value T2 in pipeline simultaneously forms temperature signal；
Three-temperature sensor (18), for detecting between the second outlet (15) of economizer (5) and the second electric expansion valve (8)
Pipeline in temperature value T3 and form temperature signal；
Signal reception processing and control module, for receive the first temperature sensor (16), second temperature sensor (17) and
The temperature signal of three-temperature sensor (18), and according to the first temperature sensor (16), second temperature sensor (17) with
And the temperature signal of three-temperature sensor (18) judges whether to meet the first electric expansion valve of regulation and control (7), the second electronic expansion
The condition of valve (8) and magnetic valve (6), if meeting the first electric expansion valve of regulation and control (7), the second electric expansion valve (8) and magnetic valve
(6) condition, then signal reception processing and control module send corresponding control to the second electric expansion valve (8) and magnetic valve (6)
Signal；
Signal reception processing and control module respectively with the first temperature sensor (16), second temperature sensor (17), the 3rd temperature
Spend sensor (18), magnetic valve (6), the first electric expansion valve (7) and the second electric expansion valve (8) electrical connection.
3. according to a kind of Gas-supplying enthalpy-increasing system of economizer described in claim 2, it is characterised in that described according to the first temperature
The temperature signal of sensor (16), second temperature sensor (17) and three-temperature sensor (18) judges whether to meet regulation and control
The condition of first electric expansion valve (7), the second electric expansion valve (8) and magnetic valve (6), if meeting the first electric expansion valve of regulation and control
(7), the second electric expansion valve (8) and magnetic valve (6) condition, then signal reception processing and control module are to the first electric expansion valve
(7), the second electric expansion valve (8) and magnetic valve (6) send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens the second electric expansion valve of magnetic valve (6) and closing
(8)；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes the second electric expansion valve of magnetic valve (6) and closing
(8)；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve (6) and opening second
Electric expansion valve (8) to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is swollen to open magnetic valve (6) and the second electronics of opening
Swollen valve (8) is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve (6) and increases the first electric expansion valve
(7) (T1-105) step aperture, the second electric expansion valve (8) is opened to X step apertures；
Wherein, X value is the integer between 55 to 65.
4. the control method of the Gas-supplying enthalpy-increasing system of a kind of economizer, it is characterised in that it comprises the following steps：
S1：Pipe between the exhaust outlet (9) and four-way valve (2) of first temperature sensor (16) detection Gas-supplying enthalpy-increasing compressor (1)
Temperature value T1 in road simultaneously forms temperature signal；Second temperature sensor (17) detection magnetic valve (6) and Gas-supplying enthalpy-increasing compressor
(1) the temperature value T2 in the pipeline between gas supplementing opening (13) simultaneously forms temperature signal；Three-temperature sensor (18) detection warp
Ji device (5) second outlet (15) and the second electric expansion valve (8) between pipeline in temperature value T3 and form temperature signal；
S2：Signal reception processing and control module receive the first temperature sensor (16), second temperature sensor (17) and the
The temperature signal of three-temperature sensor (18), and according to the first temperature sensor (16), second temperature sensor (17) and
The temperature signal of three-temperature sensor (18) judges whether to meet the first electric expansion valve of regulation and control (7), the second electric expansion valve
(8) and magnetic valve (6) condition, if meeting the first electric expansion valve of regulation and control (7), the second electric expansion valve (8) and magnetic valve (6)
Condition, then signal reception processing and control module are to the first electric expansion valve (7), the second electric expansion valve (8) and magnetic valve (6)
Send corresponding control signal；
S3：First electric expansion valve (7), the second electric expansion valve (8) and magnetic valve (6) reception signal reception processing and control mould
The control signal of block simultaneously makes respective action.
5. the control method of the Gas-supplying enthalpy-increasing system according to a kind of economizer described in claim 4, it is characterised in that described
It is according to the temperature signal judgement of the first temperature sensor (16), second temperature sensor (17) and three-temperature sensor (18)
The no condition for meeting the first electric expansion valve of regulation and control (7), the second electric expansion valve (8) and magnetic valve (6), if meeting regulation and control first
Electric expansion valve (7), the second electric expansion valve (8) and magnetic valve (6) condition, then signal reception processing and control module are to first
Electric expansion valve (7), the second electric expansion valve (8) and magnetic valve (6) send corresponding control signal and referred to：
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens the second electric expansion valve of magnetic valve (6) and closing
(8)；
As 85 DEG C of T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is closes the second electric expansion valve of magnetic valve (6) and closing
(8)；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＞, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) to X walk aperture；
As 85 DEG C of 95 DEG C of ＜ T1 ＜, and during 5 DEG C of T2-T3 ＜, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) is to X-5- (T2-T3) step aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 20 DEG C of T2-T3 ＞, then control signal is opens the second electronics of magnetic valve (6) and opening
Expansion valve (8) is to the step apertures of X+ (T2-T3) -20；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of 20 DEG C of ＜ T2-T3 ＜, then control signal is opens magnetic valve (6) and opening second
Electric expansion valve (8) to X walk aperture；
As 95 DEG C of 105 DEG C of ＜ T1 ＜, and 5 DEG C of T2-T3 ＜, then control signal is swollen to open magnetic valve (6) and the second electronics of opening
Swollen valve (8) is to X-5- (T2-T3) step aperture；
As 105 DEG C of T1 ＞, and 5 DEG C of T2-T3 ＜, then control signal is opens magnetic valve (6) and increases the first electric expansion valve
(7) (T1-105) step aperture, the second electric expansion valve (8) is opened to X step apertures；
Wherein, X value is the integer between 55 to 65.
6. the control method of the Gas-supplying enthalpy-increasing system according to a kind of economizer described in claim 4, it is characterised in that step S2
In judge whether to meet the first electric expansion valve of regulation and control (7), the second electric expansion valve (8) and magnetic valve (6) condition cycle
For 50~70 seconds.
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| CN201710754434.4A CN107477903B (en) | 2017-08-29 | 2017-08-29 | Air-supplementing and enthalpy-increasing system of economizer and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094324A (en) * | 2018-07-17 | 2018-12-28 | 蔚来汽车有限公司 | Automobile, air-conditioning system and its control method |
| WO2021018314A1 (en) * | 2019-07-30 | 2021-02-04 | 青岛海信日立空调系统有限公司 | Co2 heat pump system and defrosting control method therefor |
-
2017
- 2017-08-29 CN CN201710754434.4A patent/CN107477903B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109094324A (en) * | 2018-07-17 | 2018-12-28 | 蔚来汽车有限公司 | Automobile, air-conditioning system and its control method |
| CN109094324B (en) * | 2018-07-17 | 2021-09-14 | 蔚来(安徽)控股有限公司 | Automobile, air conditioning system and control method thereof |
| WO2021018314A1 (en) * | 2019-07-30 | 2021-02-04 | 青岛海信日立空调系统有限公司 | Co2 heat pump system and defrosting control method therefor |
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