CN218469333U

CN218469333U - Air source high-temperature water heating unit

Info

Publication number: CN218469333U
Application number: CN202222506214.9U
Authority: CN
Inventors: 黄飞桥; 袁嘉驹
Original assignee: Guangzhou Hstars Refrigeration Equipment Group Co ltd
Current assignee: Guangzhou Hstars Refrigeration Equipment Group Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-10
Anticipated expiration: 2032-09-21

Abstract

The utility model provides an air source high temperature hot water unit belongs to hot water unit technical field. It includes a casing and set up in a heat transfer system in the casing, heat transfer system contains main loop and branch return circuit, the main loop forms a complete circulation, the refrigerant gas that branch return circuit will is inhaled by the auxiliary air inlet of jet enthalpy-increasing compressor after being risen temperature, carries out the secondary compression, has avoided the compressor to carry out once compression back pressure probably not reach the required pressure of system to the feasible better heating effect that has, the more reasonable economy utilizes the energy. Meanwhile, high-temperature hot water with the temperature of more than 60 ℃ can be provided for the tail end. And temperature sensor's setting makes the temperature of observation end water that the user can be better, if makes the hot water's that the observer observed temperature sensor measurement temperature not enough, then probably the inside problem that has appeared can make and to detect the hot water unit, avoids the hot water unit to supply work low efficiency always and causes the energy extravagant.

Description

Air source high-temperature water heating unit

Technical Field

The utility model relates to a hot water unit technical field specifically relates to an air source high temperature hot water unit.

Background

The air source heat pump is a novel heating device, mainly utilizes the inverse Carnot principle, evaporates the refrigerant into gas in the evaporator, and gas absorbs the heat in the air in the evaporation process, then compresses into high-temperature high-pressure liquid through the compressor, releases the heat in entering into the condenser to heat other media, such as air, water and the like. The current society faces the problems of energy shortage, aggravation of environmental pollution, global warming and the like, and how to meet the increasing demands of living hot water, air conditioning heating and high-temperature hot water in the industrial field of the current society is important, and meanwhile, the efficient utilization of energy, low carbon and environmental protection and energy consumption reduction are realized. The air source heat pump has the technical advantages of high efficiency, energy conservation, economy and environmental protection, and is rapidly developed in recent years. Therefore, in order to better improve the high-temperature hot water unit and provide hot water with higher temperature for end use, an air source high-temperature hot water unit is provided.

A high-temperature air source heat pump hot water unit, such as a Chinese utility model patent granted at 14/07/2020 and with the application number of CN201921937861.7, also aims to solve the heating effect of the hot water unit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to better provide better heating effect, provide an air source high temperature hot water unit.

An air source high-temperature hot water unit comprises a machine shell and a heat exchange system arranged in the machine shell, wherein the heat exchange system comprises an enhanced vapor injection compressor, a four-way reversing valve, a condenser, a heat exchanger, a first expansion valve, a second expansion valve and an evaporator; the enhanced vapor injection compressor, the four-way reversing valve, the condenser, the heat exchanger, the first expansion valve, the evaporator and the four-way reversing valve are connected through pipelines to form a main loop; a branch is connected between the condenser and the heat exchanger through a two-way valve, the second expansion valve is arranged on the branch, the tail end of the second expansion valve is connected with the heat exchanger through a pipeline, the tail end of the heat exchanger is provided with an auxiliary air inlet which is connected with the enhanced vapor injection compressor through a pipeline, and the enhanced vapor injection compressor, the four-way reversing valve, the condenser, the second expansion valve and the heat exchanger form a branch loop; the condenser and a water tank form a loop, and a temperature sensor is arranged at the connecting section of the condenser and the water tank.

Preferably, the inlet end of the enhanced vapor injection compressor is provided with a gas-liquid separator. For achieving separation of gas from liquid and thus better circulation.

Preferably, the condenser is a water-cooled condenser, a heat insulation layer is arranged on the surface of the shell of the water-cooled condenser, and the heat insulation layer is an aluminum silicate heat insulation plate or a polyurethane plate. The water-cooled condenser is arranged to enable the unit to have a better using effect.

Preferably, the evaporator is two cooling air type evaporators arranged in parallel, the parallel arrangement enables the effect of heating water to be better, and the heat load of the evaporator of the unit is better met.

Preferably, the heat exchanger is a plate heat exchanger. The heat exchange between the refrigerant and the external environment is realized, so that the refrigerant is supercooled.

Preferably, the four-way reversing valve is an SHF-50-911D type four-way reversing valve. It should be noted that the four-way reversing valve changes the flow direction of the refrigerant by changing the flow passage of the refrigerant. The utility model discloses in, the efficiency of defrosting is mainly played to the four-way reversing valve. The defrosting of the unit is to change the circulation of the system into the reverse circulation, which can not provide heat for the indoor space, only is used for defrosting, and can absorb partial heat from the indoor space.

Preferably, the end of the condenser is provided with a dry filter. Because moisture, impurities and the like exist in a circulating system in the heat pump unit, negative effects can be brought to the performance, the service life and the like of equipment, and the compressor can be damaged in serious cases, so that the drying filter is arranged. Preferably, a dry filter of 80% molecular sieve is selected.

Preferably, the pipelines are made of copper tubes. The circulation of convenient refrigerant also makes the hot water unit possess longer life simultaneously.

Preferably, the inside of the casing is connected with a placing table, a through hole is formed in the side face of the placing table, and a fan is fixedly arranged on the placing table and is opposite to the through hole. Thereby set up the fan and realize carrying out the heat dissipation of certain degree to the fuselage inside, avoid the fuselage to overheat and cause the damage.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides an air source high temperature hot water unit, it include a casing and set up in a heat transfer system in the casing, heat transfer system contains main loop and branch return circuit, the main loop forms a complete circulation, the refrigerant gas that branch return circuit will is inhaled by the supplementary air inlet of jet enthalpy-increasing compressor after heaing up, carries out the secondary compression, has avoided the compressor to carry out once compression back pressure probably not reach the required pressure of system to make and have better heating effect, utilize the energy more rationally and economically, also make more be applicable to the low temperature area, also can provide the hot water of high temperature more than 60 degrees simultaneously and supply terminal the use. And temperature sensor's setting makes the temperature of observation end water that the user can be better, if makes the hot water's that the observer observed temperature sensor measurement temperature not enough, then probably the inside problem that has appeared can make and to detect the hot water unit, avoids the hot water unit to supply work low efficiency always and causes the energy extravagant.

Drawings

Fig. 1 is a schematic structural view of an air source high-temperature hot water unit according to an embodiment of the present invention;

101-shell, 102-enhanced vapor injection compressor, 103-four-way reversing valve, 104-condenser, 105-heat exchanger, 106-first expansion valve, 107-second expansion valve, 108-evaporator, 109-gas-liquid separator, 110-drying filter and 111-water tank.

Detailed Description

The embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the present embodiment provides an air source high temperature hot water unit, which includes a casing 101 and a heat exchange system disposed in the casing 101, wherein the heat exchange system includes an enhanced vapor injection compressor 102, a four-way reversing valve 103, a condenser 104, a heat exchanger 105, a first expansion valve 106, a second expansion valve 107, and an evaporator 108; the enhanced vapor injection compressor 102, the four-way reversing valve 103, the condenser 104, the heat exchanger 105, the first expansion valve 106, the evaporator 108 and the four-way reversing valve 103 are connected through pipelines to form a main loop; a branch is connected between the condenser 104 and the heat exchanger 105 through a two-way valve, the branch is provided with the second expansion valve 107, the tail end of the second expansion valve 107 is connected with the heat exchanger 105 through a pipeline, the tail end of the heat exchanger 105 is provided with an auxiliary air inlet connected with the enhanced vapor injection compressor 102 through a pipeline, and the enhanced vapor injection compressor 102, the four-way reversing valve 103, the condenser 104, the second expansion valve 107 and the heat exchanger 105 form a branch loop; the condenser 104 and a water tank 111 form a loop, and a temperature sensor is arranged at the connecting section of the condenser 104 and the water tank 111.

Preferably, the inlet end of the enhanced vapor injection compressor 102 is provided with a gas-liquid separator 109. For achieving separation of gas from liquid and thus better circulation. The condenser 104 is terminated by a dry filter 110. Because moisture, impurities and the like exist in a circulating system in the heat pump unit, negative effects can be brought to the performance, the service life and the like of equipment, and the compressor can be damaged in serious cases, so that the drying filter 110 is arranged. Preferably, a 80% molecular sieve filter-drier 110 is selected.

Preferably, the condenser 104 is a water-cooled condenser 104, and a heat insulating layer is arranged on the surface of the outer shell of the water-cooled condenser 104, and the heat insulating layer is an aluminum silicate heat insulating plate or a polyurethane plate. The arrangement of the water-cooled condenser 104 enables the unit to have better use effect. The evaporator 108 is two cooling air type evaporators 108 which are arranged in parallel, the effect of heating water is better due to the parallel arrangement, and the heat load of the evaporator 108 of the unit is better met. The heat exchanger 105 is a plate heat exchanger 105. The heat exchange between the refrigerant and the external environment is realized, so that the refrigerant is supercooled.

Preferably, the four-way reversing valve 103 is an SHF-50-911D type four-way reversing valve 103. It should be noted that the four-way valve 103 changes the flow direction of the refrigerant by changing the flow path of the refrigerant. The utility model discloses in, four-way reversing valve 103 mainly plays the efficiency of defrosting. The defrosting of the unit is to change the circulation of the system into the reverse circulation, which can not provide heat for the indoor space, only is used for defrosting, and can absorb partial heat from the indoor space.

Preferably, a placing table is connected to the inside of the casing 101, a through hole is formed in the side surface of the placing table, and a fan is fixedly arranged on the placing table and is opposite to the through hole. Thereby set up the fan and realize carrying out the heat dissipation of certain degree to the fuselage inside, avoid the fuselage to overheat and cause the damage.

When the utility model provides an air source high temperature hot water unit uses, four-way reversing valve 103 receives through the pipe connection and comes from compressor exhaust high temperature high-pressure gas, if external environment is colder, gaseous process four-way reversing valve 103 can reach the effect of defrosting. Meanwhile, the four-way reversing valve 103 does not change the state of the refrigerant, and the state of the refrigerant entering the condenser 104 is consistent with that of the refrigerant entering the four-way reversing valve 103. The heat from the refrigerant band is transferred through the condenser 104 to the cooling water, raising the temperature of the water. The refrigerant from the condenser 104 reaches the filter-drier 110, and a part of the refrigerant is changed into a gas-liquid mixture at low temperature and low pressure after passing through the second expansion valve 107, and the other part of the refrigerant flows through the main pipe, and the two parts of the refrigerant exchange heat with each other in the heat exchanger 105. The refrigerant gas in the branch circuit is raised in temperature and sucked into the auxiliary inlet of the enhanced vapor injection compressor 102, and is compressed for the second time. The refrigerant in the main pipe is depressurized by the first expansion valve 106 and flows to the evaporator 108. Finally, the heat in the environment is continuously absorbed by the refrigerant in the evaporator 108, the state is changed into gas, and then the gas is compressed in the compressor, and a gas-liquid separator 109 is arranged between the two, thereby completing a complete refrigeration cycle. It should be further noted that the data collected by the temperature sensor can be displayed through a display screen, so that the temperature condition of hot water can be known, the actual detection is realized, and when the temperature condition is abnormal, the maintenance or the inspection can be conveniently and rapidly carried out.

The utility model provides an air source high temperature hot water unit, it include a casing 101 and set up in a heat transfer system in the casing 101, heat transfer system contains main loop and branch circuit, the main loop forms a complete circulation, refrigerant gas that branch circuit will is inhaled by the supplementary air inlet of air injection enthalpy-increasing compressor 102 after heaing up, carries out the secondary compression, has avoided the compressor to carry out once compression back pressure probably not reach the required pressure of system to make and have better heating effect, utilize the energy more rationally economically, also make more be applicable to low temperature area, also can provide the hot water supply end-to-end use of high temperature more than 60 degrees simultaneously. And temperature sensor's setting makes the temperature of observation end water that the user can be better, if makes the hot water's that the observer observed temperature sensor measurement temperature not enough, then probably the inside problem that has appeared can make and to detect the hot water unit, avoids the hot water unit to supply work low efficiency always and causes the energy extravagant.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an air source high temperature hot water unit, its includes a casing and set up in a heat transfer system in the casing, its characterized in that: the heat exchange system comprises an enhanced vapor injection compressor, a four-way reversing valve, a condenser, a heat exchanger, a first expansion valve, a second expansion valve and an evaporator;

the enhanced vapor injection compressor, the four-way reversing valve, the condenser, the heat exchanger, the first expansion valve, the evaporator and the four-way reversing valve are connected through pipelines to form a main loop;

a branch is connected between the condenser and the heat exchanger through a two-way valve, the second expansion valve is arranged on the branch, the tail end of the second expansion valve is connected with the heat exchanger through a pipeline, the tail end of the heat exchanger is provided with an auxiliary air inlet which is connected with the enhanced vapor injection compressor through a pipeline, and the enhanced vapor injection compressor, the four-way reversing valve, the condenser, the second expansion valve and the heat exchanger form a branch loop;

the condenser and a water tank form a loop, and a temperature sensor is arranged at the connecting section of the condenser and the water tank.

2. The air source high temperature hot water unit as claimed in claim 1, wherein an inlet end of the enhanced vapor injection compressor is provided with a gas-liquid separator.

3. The air-source high-temperature hot water unit according to claim 1, wherein the condenser is a water-cooled condenser, and an insulating layer is provided on a surface of a housing of the water-cooled condenser.

4. The air-source high-temperature hot water unit as claimed in claim 1, wherein the evaporator is two cooling air type evaporators arranged in parallel.

5. The air-source high-temperature hot water unit as claimed in claim 1, wherein the heat exchanger is a plate heat exchanger.

6. The air-source high-temperature hot water unit as claimed in claim 1, wherein the four-way reversing valve is an SHF-50-911D-type four-way reversing valve.

7. The air-source high-temperature hot water unit as claimed in claim 1, wherein a dry filter is provided at an end of the condenser.

8. The air source high temperature hot water unit as claimed in claim 1, wherein the pipes are made of copper tubes.

9. The air source high-temperature hot water unit as claimed in claim 1, wherein a placing table is connected to the inside of the housing, a through hole is formed in a side surface of the placing table, and a fan is fixedly arranged on the placing table and faces the through hole.