CN203550140U

CN203550140U - High-efficiency total heat recovery central air conditioner

Info

Publication number: CN203550140U
Application number: CN201320528287.6U
Authority: CN
Inventors: 张志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-28
Filing date: 2013-08-28
Publication date: 2014-04-16
Anticipated expiration: 2023-08-28

Abstract

The utility model discloses a high-efficiency total heat recovery central air conditioner technique, and aims to solve the key problems that a heat recovery central air conditioner technique is immature, water heating temperature cannot rise, an operating condition is unstable, original refrigerating and heating functions of an air conditioner are affected, particularly, the operating condition of the air conditioner abnormally fluctuates as long as water temperature exceeds 45 DEG C in a water refrigerating and heating mode function of the air conditioner, and normal refrigeration and the service life of a compressor are affected. After the technique is adopted, the problems can be solved, and the high-efficiency total heat recovery central air conditioner with double energy efficiency ratio of a conventional central air conditioner moves towards the market and enters life of people.

Description

High efficiency full heat reclaims central air-conditioning

Technical field

The utility model relates to air conditioner refrigerating and domestic hot-water's apparatus field, relates in particular to business air conditioner and domestic hot-water's equipment becomes high energy-conserving product, relates to air-conditioning heating water-to-water heat exchanger high temperature water heating technology and air conditioning high efficiency Defrost technology.

Background technology

Existing market air-conditioning and domestic hot-water's equipment are extensively that the industries such as family and commerce services are used, and particularly summer, air conditioner refrigerating discharged huge heat formation tropical island effect in all parts of the country, caused people to work and living environment thermal pollution; Use throughout the year domestic hot-water's equipment to comprise that electric heater, electric boiler, gas fired-boiler, oil burning boiler, coal-fired central heating boiler etc. expend the petrochemical industry resources such as a large amount of electric energy, oil, gas, coal; not only environment is brought to exhaust emission; the energy crisis that a large amount of consumption of the energy bring; threaten gradually the mankind's existence; more and more in the urgent need to mankind's low-carbon (LC), live; need energy-efficient product, this some enterprise taked to counter-measure exploitation energy-conserving product, but also have following problem:

1. Development and Production Teat pump boiler replaces electric heater, although economize on electricity more than 50% than electric heater, winter, cold snap efficiency declined greatly, and summer, water heating also had the cooling power of half not utilize.

2. Some Enterprises exploitation heat recovering air conditioner, utilizes air conditioner refrigerating discharge heat reclamation heat-production water, but only limits to part business air conditioner, most recovery less than 20%;

3. Centralized Air-conditioning in Public Buildings and hot water facility are the huge consumer products of society, the a large amount of electric energy of annual consumption, many enterprises attempt exploitation recuperation of heat central air-conditioning, refrigeration+water heating Energy Efficiency Ratio can reach 6 ~ 9 in theory, but all do not have successfully, not being to occur that hot water temperature does not increase, is exactly that system conditions fluctuation is large, affects original refrigeration, heat-production functions.

Basic reason or key technology does not make clear of in sum, or structure and Performance Match problem, product is difficult to form in batches meets consumers' demand.

The utility model is exactly in order to solve the jejune problem of recuperation of heat central air-conditioning technology, will solve water heating temperature not increase unstable with operating condition, and affect the key issue of the original refrigeration of air-conditioning, heat-production functions, particularly in air conditioner refrigerating+water heating pattern using function, as long as water temperature exceedes 45 ℃, operation of air conditioner operating mode just there will be unusual fluctuations, affects the service life of the normal refrigeration of air-conditioning and compressor.The utility model technology will overcome existing not enough problem after adopting, and high efficiency full heat reclaims central air-conditioning by with the double Energy Efficiency Ratio of conventional central air-conditioning product, moves towards market access people's life.

Summary of the invention

The purpose of this utility model is to provide a kind of technology can make air-conditioning have in running: refrigeration+thermobiosis hot water function; Water heating function separately; Refrigerating function; Heat-production functions; Heat+water heating function; Meeting, in five kinds of control model functions, operating condition again can be highly stable.

The purpose of this utility model, will be achieved through the following technical solutions:

A kind of high efficiency full heat reclaims central air-conditioning, structure comprises compressor, cross valve, condenser, throttling arrangement, evaporimeter, the pipeline connecting between knockout drum and each parts, it is characterized in that: in the middle of the high-pressure exhaust pipe between compressor (1) and cross valve I (6), be in series with the superheater (3) that is full of high temperature and high pressure gas, superheater has superheater water inlet pipe, superheater outlet pipe is connected and is responsible for thermobiosis hot water heating specially with heat storage water tank (8) top, cross valve I is connected with water heating heat exchanger (10), water heating heat exchanger (10) also has heat exchanger water inlet pipe, heat exchanger outlet pipe is connected with heat storage water tank (8) bottom is responsible for middle low temperature domestic hot-water heating specially, also have one to be characterised in that: between condenser and evaporimeter, to have a tube connector (26) and magnetic valve II (27), one termination evaporimeter air conditioner water pipeline of tube connector, another termination condenser middle and upper part spray equipment (21), it acts on the defrosting of heating condition air conditioning hot spray, spray equipment (21) is circumscribed with running water pipe (22) and magnetic valve I (23), and it acts on the time condensation of cooling condition spray condenser.

The utility model is in refrigeration, works routinely during heat-production functions pattern, and water heating heat exchanger is not all worked; When using domestic hot-water's pattern or refrigeration+domestic hot-water pattern separately, high-temperature gas working medium is discharged first through superheater from compressor, now superheater inner coil pipe water heating is not worked and is not circulated, but water heating heat exchanger and heat storage water tank circulation water heating, when heat storage water tank water temperature is raised to design temperature, by control system TEMP, signal to superheater and water pump automatic cycle preparing high-temp hot water, when hot water temperature reaches setting high temperature: autostop while operating to independent domestic hot-water's operating mode processed; While operating to refrigeration+domestic hot-water pattern, automatically transfer refrigeration mode work to.

Accompanying drawing explanation

Accompanying drawing is the utility model example structure principle schematic:

In figure, serial number represents: 1. compressor; 2. blast pipe; 3. superheater; 4. superheater outlet pipe; 5. superheater water inlet pipe; 6. cross valve I; 7. water pump I; 8. heat storage water tank; 9. heat exchanger outlet pipe; 10. water heating heat exchanger; 11. water pump II; 12. heat exchanger water inlet pipes; 13. cross valve tube connectors; 14. check valve I; 15. check valve II; 16. heat exchanger refrigerant exit pipes; 17. condenser inlet tubes; 18. cross valve II; 19. condensers; 20. shower water retracting devices; 21. spray equipments; 22. external running water pipes; 23. magnetic valve I; 24. condensator outlet pipes; 25. throttling arrangement sub-assemblies; 25-1. check valve A; 25-2. check valve B; 25-3. heating power expansion valve; 25-4. check valve C; 25-5. expansion valve temperature detector; 25-6. filter; 25-7. check valve D; 25-8. fluid reservoir; 26. tube connectors; 27. magnetic valve II; 28. evaporator pipes; 29. air conditioner water inlet tubes; 30. air conditioner water outlets; 31. evaporimeters; 32. evaporator outlet pipes; 33. oil return pipes; 35. mufflers; 36. knockout drums.

the specific embodiment:

The full recuperation of heat central air-conditioning of the utility model has five functions operational mode:

(1) refrigerating operaton pattern; (conventional basic model)

(2) refrigeration+domestic hot-water's operational mode;

(3) domestic hot-water's operational mode processed separately;

(4) heating operation pattern; (conventional basic model)

(5) heat+domestic hot-water operational mode;

Below in conjunction with accompanying drawing, the utility model central air-conditioning operation basic model is further described:

1, refrigerating operaton operating mode pattern:

Compressor (1) absorbs the gaseous working medium in knockout drum (36), be compressed into after high temperature and high pressure gas, through blast pipe (2), enter superheater (3), enter cross valve I (6), cross cross valve tube connector (13) check valve (14), enter cross valve II (18), after condenser inlet pipe (17) flows into condenser (19), be condensed into gradually liquid refrigerant, through condensator outlet pipe (24), enter throttling arrangement sub-assembly (25), through check valve A(25-1), enter fluid reservoir (25-8), after filter (25-6) and expansion valve (25-3) reducing pressure by regulating flow, cross check valve C(25-4), enter after evaporimeter (31) evaporation endothermic, get back to cross valve II (18), passing through muffler (35), enter knockout drum (36), return compressor (1) and complete the kind of refrigeration cycle of one-period, this loop cycle is back and forth so that infinite realization refrigeration object, this pattern is conventional basic model.

2., refrigeration+water heating operational mode:

Compressor (1) absorbs the gaseous working medium in knockout drum (36), be compressed into after high temperature and high pressure gas, through blast pipe (2), enter superheater (3), (now superheater water heating is not worked and do not circulated) is through cross valve I (6), cross heat exchanger water inlet pipe (12), system hot water heat exchanger (10), the water at low temperature of water pump (11) input, high temperature and high pressure gas is cooled to liquid gradually in the inner heat release of water heating heat exchanger (10), through refrigerant exit pipe (16) and check valve (15), enter cross valve II (18), cross condenser inlet pipe (17) and flow into condenser (19), now the fan electromotor of condenser is not worked, working medium flows out through throttling arrangement sub-assembly (25) from condenser, through check valve A(25-1), enter fluid reservoir (25-8), after filter (25-6) and expansion valve (25-3) reducing pressure by regulating flow, cross check valve C(25-4), enter after evaporimeter (31) evaporation endothermic, get back to cross valve II (18), passing through muffler (35), enter knockout drum (36), return compressor (1) and complete the circulation of the refrigeration of one-period+water heating, this loop cycle is back and forth so that infinite realization refrigeration water heating object simultaneously.

When in water heating process, water temperature is raised to uniform temperature, if set water temperature is high-temperature water, control system temperature-sensitive signal notice superheater (3) and water pump (7) startup work, add thermosetting high-temperature-hot-water, now the whole process condenser fan of water heating is in stopping or coda dead slow speed state, complete after high-temperature-hot-water heating, water heating+refrigeration mode operating mode proceeds to refrigeration mode work automatically.

3, independent domestic hot water operational mode:

Compressor (1) absorbs the gaseous working medium in knockout drum (36), be compressed into after high temperature and high pressure gas, through blast pipe (2), enter superheater (3), enter cross valve I (6), system hot water heat exchanger (8), the water at low temperature of water pump (11) input, high temperature and high pressure gas is cooled to liquid gradually in the inner heat release of water heating heat exchanger (10), through refrigerant exit pipe (16) and check valve II (15), enter cross valve II (18) commutation, through evaporimeter (31), now do not work in the air-conditioning water route (or fan electromotor) of evaporimeter, working medium flows out through throttling arrangement sub-assembly (25) from evaporimeter, first by check valve D(25-7), enter fluid reservoir (25-8), enter after filter (25-6) and expansion valve (25-3) reducing pressure by regulating flow, cross check valve B (25-2), cross condenser (19) (being now evaporator function) evaporation endothermic, return cross valve II (18), cooled via return air pipe (35), enter knockout drum (36), return compressor (1) and complete the independent water heating circulation of one-period, when in water heating process, water temperature is raised to uniform temperature, if set water temperature is high-temperature water, control system temperature-sensitive signal notice superheater (3) and water pump (11) startup work, add thermosetting high-temperature-hot-water, now the air-conditioning water route of the whole process evaporimeter of water heating (31) or fan electromotor, in halted state, complete the rear autostop of high-temperature-hot-water heating.

4. heat+domestic hot-water operational mode:

This pattern and independent domestic hot water operational mode are basic identical, have increased heating mode, and actual is to heat and the alternation of water heating pattern, owing to heating, no longer describe in detail for conventional common-mode;

If generally first guarantee domestic hot-water, first move independent domestic hot water pattern, domestic hot-water, reach after design temperature, then be automatically brought to and heat control model; If pay the utmost attention to air conditioning and heating, first move heating mode, heated after setting, then carried out independent domestic hot water pattern.

5. energy-efficient operating condition: no matter the utility model moves under refrigeration mode, or under heating mode or refrigeration+water heating pattern, operation can start condenser spray equipment: during (1) cooling condition, can utilize and reclaim indoor evaporation condensed water or social community water supply spray condenser, realize air-cooled and water-cooled evaporative condenser combination, greatly improve degree of supercooling, strengthen the super energy-conservation refrigeration of refrigerating capacity; (2) can utilize the hot water of air conditioner water pipeline in evaporimeter during heating condition, when outdoor condenser frosting, sensor sends whistle control system and automatically opens the magnetic valve II (27) in evaporimeter and condenser tube connector (26), the defrosting of air-conditioning heating water road direction spray equipment supplying hot water spray, add Wind Volume simultaneously and change compression pyrogenic adverse circumstances, compressor need not be changed refrigeration reverse cycle defrosting, and utilizing water heating defrosting efficiency should be the more than 2 times of compressor work transition heat defrosting efficiency; (3) during refrigeration+water heating mode operation, open magnetic valve I (23), start condenser spray equipment, carry out (domestic hot-water's heat exchange) water-cooled, condenser air-cooled+the triple condensation degree of supercoolings of spraying and sprinkling evaporation increase greatly, cooling system, the two-way use of water heating, Energy Efficiency Ratio significantly improves, and realizes the true qualities of the life of high efficiency full heat recovery central air-conditioning low-carbon (LC), energy-conservation champion's product.

The utility model feature: overcome existing recuperation of heat central air-conditioning, recuperation of heat amount is little, water heating operating mode is unstable and can not preparing high-temp hot water etc. shortcoming, overcome the immature shortcoming of putting on market in batches of delaying of existing product; The utility model dependable performance is stable, and its freeze+domestic hot-water's mode operation Energy Efficiency Ratio processed can reach more than 8, the typical products that provides highly-efficient energy-saving low-carbon to live for industries such as office, school, social commerce services.

Claims

1. a high efficiency full heat reclaims central air-conditioning, structure comprises compressor, cross valve, condenser, throttling arrangement, evaporimeter, the pipeline connecting between knockout drum and each parts, it is characterized in that: in the middle of the high-pressure exhaust pipe between compressor (1) and cross valve I (6), be in series with the superheater (3) that is full of high temperature and high pressure gas, superheater has superheater water inlet pipe, superheater outlet pipe is connected and is responsible for thermobiosis hot water heating specially with heat storage water tank (8) top, cross valve I is connected with water heating heat exchanger (10), water heating heat exchanger (10) also has heat exchanger water inlet pipe, heat exchanger outlet pipe is connected with heat storage water tank (8) bottom is responsible for middle low temperature domestic hot-water heating specially.

2. high efficiency full heat according to claim 1 reclaims central air-conditioning, it is characterized in that: between condenser and evaporimeter, have a tube connector (26) and magnetic valve II (27), one termination evaporimeter air conditioner water pipeline of tube connector, another termination condenser middle and upper part spray equipment (21), it acts on the defrosting of heating condition air conditioning hot spray; Spray equipment (21) is circumscribed with running water pipe (22) and magnetic valve I (23), and it acts on the time condensation of cooling condition spray condenser.

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