CN113970122B - Floor heating hot water dual-combined supply system and control method - Google Patents
Floor heating hot water dual-combined supply system and control method Download PDFInfo
- Publication number
- CN113970122B CN113970122B CN202111411147.6A CN202111411147A CN113970122B CN 113970122 B CN113970122 B CN 113970122B CN 202111411147 A CN202111411147 A CN 202111411147A CN 113970122 B CN113970122 B CN 113970122B
- Authority
- CN
- China
- Prior art keywords
- floor heating
- temperature
- electric
- way valve
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 217
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000008236 heating water Substances 0.000 claims abstract description 74
- 238000004891 communication Methods 0.000 claims description 24
- 230000009977 dual effect Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 2
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 claims 4
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
- F24D3/082—Hot water storage tanks specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- 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]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
本发明提供了一种地暖热水两联供系统及控制方法，所述地暖热水两联供系统包括热泵机组HP、供暖水泵P1、地暖水泵P2、电动三通阀MV1、电动二通阀MV2、热水水箱HWT、地暖换热装置WHE、地暖FLH、水箱换热装置WTC、第一温度传感器Twt、第二温度传感器Twi‑FLH，通过调整供暖水泵P1、地暖水泵P2的流速以及电动三通阀MV1、电动二通阀MV2的通断，使得地暖和生活用水都能够满足其不同的水温需求。本发明通过设置合理的系统结构及控制方法步骤，能够便捷、可靠、稳定的实现制取高水温生活热水及低水温地暖供热的工作方式，避免能量浪费，提高换热能量的利用率，保障用户的生活舒适度。
The present invention provides a dual-supply system for floor heating and hot water and a control method. The dual-supply system for floor heating and hot water includes a heat pump unit HP, a heating water pump P1, a floor heating water pump P2, an electric three-way valve MV1, and an electric two-way valve MV2 , hot water tank HWT, floor heating heat exchange device WHE, floor heating FLH, water tank heat exchange device WTC, first temperature sensor Twt, second temperature sensor Twi-FLH, by adjusting the flow rate of heating water pump P1, floor heating water pump P2 and electric tee The on-off of the valve MV1 and the electric two-way valve MV2 enables the floor heating and domestic water to meet their different water temperature requirements. By setting a reasonable system structure and control method steps, the present invention can conveniently, reliably and stably realize the working mode of producing high-temperature domestic hot water and low-temperature floor heating, avoiding energy waste, and improving the utilization rate of heat exchange energy. Ensure the user's life comfort.
Description
技术领域technical field
本发明涉及热泵系统技术领域，特别涉及一种地暖热水两联供系统及控制方法。The invention relates to the technical field of heat pump systems, in particular to a ground heating and hot water combined supply system and a control method.
背景技术Background technique
目前我国的热泵地暖装置和空气能热水装置，基本上是两种相互独立的不同设备，常规的热泵地暖装置只提供制热，而常规的热泵热水装置仅提供生活热水；二者基本原理相同，但热泵地暖装置在夏季和过渡季节处于闲置状态，而热泵热水装置只用于产生生活热水，设备的功能及能源利用率都未得到充分的利用。At present, the heat pump floor heating device and the air energy hot water device in our country are basically two kinds of independent and different equipment. The conventional heat pump floor heating device only provides heating, while the conventional heat pump water heating device only provides domestic hot water; the two are basically The principle is the same, but the heat pump floor heating device is idle in summer and transitional seasons, while the heat pump water heating device is only used to generate domestic hot water, and the functions and energy utilization of the equipment are not fully utilized.
虽然现有技术中公开有通过一个热泵实现供暖以及热水的供热，在实际供暖中，用户有不同的热水需求：高水温的生活热水用来洗澡，低水温的热水用来地暖供热，所需求的水温大不一样(一般地暖水温在35℃左右，生活热水在55℃以上)，当这两种水温同时需求时，需要调整不同的水温满足其需求。Although it is disclosed in the prior art that a heat pump is used to realize heating and hot water heating, in actual heating, users have different hot water needs: high-temperature domestic hot water is used for bathing, and low-temperature hot water is used for floor heating For heating, the required water temperature is quite different (generally, the temperature of ground heating water is around 35°C, and that of domestic hot water is above 55°C).
如何对热泵系统进行优化升级，使得满足地暖以及热水不同温度的功能需求，是本领域技术人员亟待解决的技术问题。How to optimize and upgrade the heat pump system to meet the functional requirements of floor heating and hot water at different temperatures is a technical problem to be solved urgently by those skilled in the art.
发明内容Contents of the invention
有鉴于此，本发明旨在提出一种地暖热水两联供系统及控制方法，针对地暖和热水两种水温被需求时，需要调整不同的水温满足其需求的应用场景，热泵主机根据不同的末端需求(高水温热水、低水温地暖供热)，结合检测水箱温度的第一温度传感器Twt和检测地暖温度的第二温度传感器Twi-FLH的反馈温度，通过控制电动三通阀MV1、电动二通阀MV2的开关及地暖水泵P2的变频控制，实现热水高水温，地暖低水温的需求。In view of this, the present invention aims to propose a ground heating and hot water dual supply system and a control method. For application scenarios where floor heating and hot water are required, different water temperatures need to be adjusted to meet their needs. The heat pump host according to different end demand (high water temperature hot water, low water temperature floor heating heating), combined with the feedback temperature of the first temperature sensor Twt for detecting the temperature of the water tank and the second temperature sensor Twi-FLH for detecting the temperature of the floor heating, by controlling the electric three-way valve MV1, The switch of the electric two-way valve MV2 and the frequency conversion control of the floor heating water pump P2 can realize the demand of high water temperature for hot water and low water temperature for floor heating.
为达到上述目的，本发明的技术方案是这样实现的：In order to achieve the above object, technical solution of the present invention is achieved in that way:
一种地暖热水两联供系统，包括热泵机组HP、供暖水泵P1、地暖水泵P2、电动三通阀MV1、电动二通阀MV2、热水水箱HWT、地暖换热装置WHE、地暖FLH，其中，热水水箱HWT内部设有水箱换热装置WTC和第一温度传感器Twt，FLH地暖盘管上设有第二温度传感器Twi-FLH，供暖水泵P1、地暖水泵P2、第一温度传感器Twt、第二温度传感器Twi-FLH、电动三通阀MV1、电动二通阀MV2由热泵机组HP控制，其中，电动三通阀MV1的第一个连通口A与供暖水泵P1连通，电动三通阀MV1的第二个连通口B与水箱换热装置WTC连通，电动三通阀MV1的第三个连通口C设置在水箱换热装置WTC与地暖换热装置WHE之间，所述电动二通阀MV2设置在地暖换热装置WHE与地暖FLH之间，当电动三通阀处于ON状态时，第一个连通口A与第二个连通口B相通，与第三个连通口C不通；当电动三通阀处于OFF状态时，第一个连通口A与第三个连通口C相通，与第二个连通口B不通。A ground heating and hot water dual supply system, including a heat pump unit HP, a heating water pump P1, a floor heating water pump P2, an electric three-way valve MV1, an electric two-way valve MV2, a hot water tank HWT, a floor heating heat exchange device WHE, and a floor heating FLH, wherein , the hot water tank HWT is equipped with the water tank heat exchange device WTC and the first temperature sensor Twt, the FLH floor heating coil is equipped with the second temperature sensor Twi-FLH, the heating water pump P1, the floor heating water pump P2, the first temperature sensor Twt, the second temperature sensor The second temperature sensor Twi-FLH, the electric three-way valve MV1, and the electric two-way valve MV2 are controlled by the heat pump unit HP. Among them, the first connection port A of the electric three-way valve MV1 is connected with the heating water pump P1, and the first connection port A of the electric three-way valve MV1 The second communication port B communicates with the water tank heat exchange device WTC, the third communication port C of the electric three-way valve MV1 is set between the water tank heat exchange device WTC and the floor heating heat exchange device WHE, and the electric two-way valve MV2 is set Between the floor heating heat exchange device WHE and the floor heating FLH, when the electric three-way valve is in the ON state, the first communication port A communicates with the second communication port B, and does not communicate with the third communication port C; when the electric three-way valve When the valve is in the OFF state, the first communication port A communicates with the third communication port C, and does not communicate with the second communication port B.
本发明公开的地暖热水两联供系统，通过一套热泵装置实现对生活热水和地暖热水的两联供热，优先将热泵机组HP与水箱换热装置WTC换热，保证生活热水的温度，在地暖管温度过低时，又能够单独对地暖换热装置WHE换热，提高换热能量的利用率，同时使得生活用水的温度和地暖供热的温度都能够满足生活需要，提高生活舒适度。The ground heating and hot water dual supply system disclosed in the present invention realizes the dual heating of domestic hot water and ground heating hot water through a set of heat pump devices, and preferentially exchanges heat between the heat pump unit HP and the water tank heat exchange device WTC to ensure domestic hot water When the temperature of the floor heating pipe is too low, it can independently exchange heat with the floor heating heat exchange device WHE, improve the utilization rate of heat exchange energy, and at the same time make the temperature of domestic water and the temperature of floor heating heating meet the needs of life, improve Living comfort.
进一步的，所述地暖水泵P2为变频水泵，地暖管供热温度较低时，地暖水泵P2的频率提升，地暖管供热温度较高时，地暖水泵P2的频率降低。Further, the floor heating water pump P2 is a frequency conversion water pump. When the heating temperature of the floor heating pipe is low, the frequency of the floor heating water pump P2 is increased, and when the heating temperature of the floor heating pipe is high, the frequency of the floor heating water pump P2 is decreased.
该设置通过将控制地暖管内水流量的地暖水泵P2设置为变频水泵，使得地暖管供热始终可以保持在人体较为舒适的温度，进一步提高生活的舒适度。This setting sets the floor heating water pump P2 that controls the water flow in the floor heating pipe as a frequency conversion water pump, so that the heating of the floor heating pipe can always be kept at a relatively comfortable temperature for the human body, further improving the comfort of life.
进一步的，所述地暖换热装置WHE为板式换热装置，所述水箱换热装置WTC为盘管式换热装置。Further, the floor heating heat exchange device WHE is a plate heat exchange device, and the water tank heat exchange device WTC is a coil heat exchange device.
该设置提高了换热的效率，进一步提高热量能量的利用率，避免能量浪费。This setting improves the efficiency of heat exchange, further improves the utilization rate of heat energy, and avoids energy waste.
本发明的另一个目的在于公开一种地暖热水两联供控制方法，应用于如上述所述的地暖热水两联供系统，包括以下工作模式：Another object of the present invention is to disclose a method for controlling dual-supply of ground heating and hot water, which is applied to the dual-supply system of ground heating and hot water as described above, including the following working modes:
热水供热模式；Hot water heating mode;
地暖供热模式；Floor heating heating mode;
热水+地暖供热模式。Hot water + floor heating heating mode.
进一步的，当地暖热水两联供系统选择热水+地暖供热模式的工作工况时，当第一温度传感器Twt检测的水箱内部温度小于水箱设定温度T水箱设定-T1时，热泵机组HP运行，电动三通阀MV1处于ON状态；电动二通阀MV2得电打开，供暖水泵P1、地暖水泵P2运行，当第一温度传感器Twt检测的水箱内部温度大于水箱设定温度T水箱设定+T2时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。Further, when the combined heating and hot water supply system selects the working condition of the hot water + floor heating heating mode, when the internal temperature of the water tank detected by the first temperature sensor Twt is lower than the set temperature of the water tank T, the water tank setting - T1 , The heat pump unit HP is running, the electric three-way valve MV1 is in the ON state; the electric two-way valve MV2 is powered on, and the heating water pump P1 and floor heating water pump P2 are running. When the internal temperature of the water tank detected by the first temperature sensor Twt is greater than the set temperature T When +T 2 is set , the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
进一步的，当地暖热水两联供系统选择模式选择热水供热模式的工作工况时，当第一温度传感器Twt检测的水箱内部温度小于水箱设定温度T水箱设定-T3时，热泵机组HP运行，电动三通阀MV1处于ON状态；电动二通阀MV2失电闭合；供暖水泵P1运行，地暖水泵P2不运行，当第一温度传感器Twt检测的水箱内部温度大于水箱设定温度T水箱设定+T4时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。Further, when the selection mode of the local heating and hot water combined supply system selects the working condition of the hot water heating mode, when the internal temperature of the water tank detected by the first temperature sensor Twt is less than the set temperature of the water tank T, the water tank is set - T3 , The heat pump unit HP is running, the electric three-way valve MV1 is in the ON state; the electric two-way valve MV2 is de-energized and closed; the heating water pump P1 is running, and the floor heating water pump P2 is not running. When the internal temperature of the water tank detected by the first temperature sensor Twt is greater than the set temperature When the T water tank is set to +T 4 , the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
进一步的，当地暖热水两联供系统选择模式选择地暖供热模式的工作工况时，当第二温度传感器Twi-FLH的检测温度小于地暖设定温度T地暖设定+T5时，热泵机组HP运行，电动三通阀MV1处于OFF状态；电动二通阀MV2得电打开；供暖水泵P1、地暖水泵P2运行，当第二温度传感器Twi-FLH的检测温度大于地暖设定温度T地暖设定+T6时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。Further, when the selection mode of the combined heating and hot water supply system selects the working condition of the floor heating heating mode, when the detection temperature of the second temperature sensor Twi-FLH is less than the floor heating set temperature T floor heating setting + T 5 , the heat pump The unit HP is running, the electric three-way valve MV1 is in the OFF state; the electric two-way valve MV2 is powered on; the heating water pump P1 and the floor heating water pump P2 are running. When +T is set to 6 , the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
本发明所述的地暖热水两联供控制方法，基于本发明公开的地暖热水两联供系统，通过设置地暖热水两联供系统在不同工作工况下的控制程序，可实现制取生活热水高水温热水，同时实现地暖低水温供热的目的，提高了热量的利用率以及人们在使用地暖热水两联供系统的舒适度。The method for controlling dual-supply of ground heating and hot water according to the present invention is based on the dual-supply system of ground heating and hot water disclosed in the present invention. Domestic hot water is hot water with high water temperature, and at the same time realizes the purpose of floor heating and low water temperature heating, which improves the utilization rate of heat and the comfort of people using the floor heating and hot water dual supply system.
进一步的，T1、T2、T3、T4、T5、T6为根据经验设置的预设温度值，T1的取值范围为0.5～5℃，T2的取值范围为0.5～5℃，T3的取值范围为0.5～5℃，T4的取值范围为0.5～5℃，T5的取值范围为5～15℃，T6的取值范围为1～5℃。Further, T 1 , T 2 , T 3 , T 4 , T 5 , and T 6 are preset temperature values set according to experience, the value range of T 1 is 0.5-5°C, and the value range of T 2 is 0.5 ~5℃, the value range of T3 is 0.5～5℃, the value range of T4 is 0.5～5℃, the value range of T5 is 5～15℃, the value range of T6 is 1～5℃ ℃.
通过对设定温度参数的优化设计，该设置既保证了生活用水的温度以及供暖管的供热温度，精准、可靠的实现制取生活热水高水温热水以及同时实现地暖低水温供热的目标，提高了生活的舒适度，又避免换热能量的浪费，提高能量利用率。Through the optimal design of the set temperature parameters, this setting not only ensures the temperature of domestic water and the heating temperature of the heating pipe, but also accurately and reliably realizes the production of high-temperature hot water for domestic hot water and the low-temperature heating for floor heating. The goal is to improve the comfort of life, avoid the waste of heat exchange energy, and improve energy utilization.
进一步的，地暖水泵P2为变频水泵，其频率控制按照如下的控制方式进行：Furthermore, the ground heating water pump P2 is a variable frequency water pump, and its frequency control is carried out according to the following control method:
设定第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的差值为△T，即△T＝TTwi-FLH-T地暖设定；Set the difference between the detection temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T to be ΔT, that is, ΔT=T Twi-FLH -T floor heating setting ;
地暖水泵P2的输入占空比F＝上次输入占空比F上+△F；The input duty ratio F of the ground heating water pump P2 = the last input duty ratio F+△F;
△F与△T按照如下的关系进行控制：△F and △T are controlled according to the following relationship:
在a≤△T≤b时，△F＝0；When a≤ΔT≤b, ΔF=0;
在△T＜a时，△F＜0；When △T<a, △F<0;
在△T＞b时，△F＞0；When ΔT>b, ΔF>0;
其中，在a＜0℃，b＞0℃。Wherein, at a<0°C, b>0°C.
该设置通过将地暖水泵P2在第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的温差为负值时，提高地暖水泵P2的输入占空比F，提高地暖管的供暖温度，在第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的温差为正值时，降低地暖水泵P2的输入占空比F，避免地暖管的供暖温度持续过快增长，使其维持在较为舒适的供暖温度。This setting increases the input duty ratio F of the floor heating water pump P2 when the temperature difference between the detected temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T and the floor heating setting is a negative value, so as to improve the heating of the floor heating pipe. Temperature, when the temperature difference between the detection temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T is a positive value, the input duty cycle F of the floor heating water pump P2 is reduced to avoid the heating temperature of the floor heating pipe from continuing to increase too rapidly , so that it can be maintained at a more comfortable heating temperature.
进一步的，在△T＜a的区间，分为至少两个区段，所述区段对应△T的温度值越低，△F的取值越小；在△T＞b的区间，分为至少两个区段，所述区段对应△T的温度值越高，△F的取值越大。Further, in the interval of ΔT<a, it is divided into at least two sections, the lower the temperature value corresponding to ΔT in the section, the smaller the value of ΔF; in the interval of ΔT>b, it is divided into There are at least two sections, the higher the temperature value of ΔT corresponding to the section, the larger the value of ΔF.
通过设置的地暖水泵P2变频控制逻辑，在地暖供热模式或者热水+地暖供热模式下，通过控制地暖水泵流量使地暖水温维持较低的温度值，供地暖使用，提高了热量的利用率，保障人们在使用地暖热水两联供系统时供暖的舒适度。Through the set floor heating water pump P2 frequency conversion control logic, in the floor heating heating mode or hot water + floor heating heating mode, by controlling the flow of the floor heating water pump, the floor heating water temperature can be maintained at a lower temperature value for floor heating, which improves the utilization rate of heat , to ensure the comfort of heating when people use the ground heating and hot water dual-supply system.
相对于现有技术，本发明所述的地暖热水两联供系统及控制方法具有以下优势：Compared with the prior art, the ground heating and hot water combined supply system and control method of the present invention have the following advantages:
(1)本发明所述的地暖热水两联供系统，将地暖换热装置WHE设置在水箱换热装置WTC的后端，并且在二者之间通过设置连通管与电动三通阀MV1的第三个连通口C连通，热泵机组HP对生活热水和地暖同时或者单独使用供热时，根据改变供暖水泵P1、地暖水泵P2、电动三通阀MV1、电动二通阀MV2的工作状态，保证地暖和生活用水都能够满足其不同的水温需求。(1) In the ground heating and hot water combined supply system described in the present invention, the floor heating heat exchange device WHE is arranged at the rear end of the water tank heat exchange device WTC, and the connecting pipe and the electric three-way valve MV1 are arranged between the two. The third connection port C is connected. When the heat pump unit HP supplies domestic hot water and floor heating simultaneously or separately, according to changing the working status of heating water pump P1, floor heating water pump P2, electric three-way valve MV1, and electric two-way valve MV2, Ensure that both floor heating and domestic water can meet their different water temperature needs.
(2)本发明所述的地暖热水两联供系统及控制方法，通过设置合理的系统结构及控制方法步骤，能够便捷、可靠、稳定的实现制取高水温生活热水及低水温地暖供热的工作方式，避免能量浪费，提高换热能量的利用率，保障用户的生活舒适度。(2) The ground heating and hot water combined supply system and control method described in the present invention can realize the production of high-temperature domestic hot water and low-temperature ground heating in a convenient, reliable and stable manner by setting a reasonable system structure and control method steps. The thermal working method avoids energy waste, improves the utilization rate of heat exchange energy, and ensures the comfort of life for users.
(3)本发明所述的地暖热水两联供系统及控制方法，在生活热水和地暖同时使用时，通过控制地暖水泵流量使地暖水温维持较低的温度值，供地暖使用，使其维持在较为舒适的供暖温度，进一步提高用户使用的舒适度。(3) The ground heating and hot water dual supply system and the control method of the present invention, when domestic hot water and floor heating are used at the same time, the floor heating water temperature is maintained at a lower temperature value by controlling the flow rate of the floor heating water pump for use in floor heating, making it Maintain a relatively comfortable heating temperature to further improve the comfort of users.
附图说明Description of drawings
构成本发明的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1为本发明实施例所述的地暖热水两联供系统的结构示意图；Fig. 1 is a schematic structural view of a system for combined supply of ground heating and hot water according to an embodiment of the present invention;
图2为本发明实施例所述的地暖热水两联供系统地暖侧变频水泵转速与输入占空比的关系示意图。Fig. 2 is a schematic diagram of the relationship between the rotational speed of the frequency conversion water pump on the floor heating side and the input duty cycle of the combined floor heating and hot water supply system according to an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明的技术手段及达到目的与功效易于理解，下面结合具体图示对本发明的实施例进行详细说明。In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention will be described in detail below in conjunction with specific diagrams.
实施例1Example 1
如图1所示，本发明公开了一种地暖热水两联供系统，包括热泵机组HP、供暖水泵P1、地暖水泵P2、电动三通阀MV1、电动二通阀MV2、热水水箱HWT、地暖换热装置WHE、地暖FLH，其中，热水水箱HWT内部设有水箱换热装置WTC和第一温度传感器Twt，FLH地暖盘管上设有第二温度传感器Twi-FLH，供暖水泵P1、地暖水泵P2、第一温度传感器Twt、第二温度传感器Twi-FLH、电动三通阀MV1、电动二通阀MV2由热泵机组HP控制，其中，电动三通阀MV1的第一个连通口A与供暖水泵P1连通，电动三通阀MV1的第二个连通口B与水箱换热装置WTC连通，电动三通阀MV1的第三个连通口C设置在水箱换热装置WTC与地暖换热装置WHE之间，所述电动二通阀MV2设置在地暖换热装置WHE与地暖FLH之间，当电动三通阀处于ON状态时，第一个连通口A与第二个连通口B相通，与第三个连通口C不通；当电动三通阀处于OFF状态时，第一个连通口A与第三个连通口C相通，与第二个连通口B不通。As shown in Fig. 1, the present invention discloses a ground heating and hot water dual supply system, including a heat pump unit HP, a heating water pump P1, a floor heating water pump P2, an electric three-way valve MV1, an electric two-way valve MV2, a hot water tank HWT, Floor heating heat exchange device WHE, floor heating FLH, wherein, the hot water tank HWT is equipped with water tank heat exchange device WTC and the first temperature sensor Twt, the FLH floor heating coil is equipped with the second temperature sensor Twi-FLH, heating water pump P1, floor heating The water pump P2, the first temperature sensor Twt, the second temperature sensor Twi-FLH, the electric three-way valve MV1, and the electric two-way valve MV2 are controlled by the heat pump unit HP, wherein the first communication port A of the electric three-way valve MV1 is connected to the heating The water pump P1 is connected, the second connection port B of the electric three-way valve MV1 is connected with the water tank heat exchange device WTC, and the third connection port C of the electric three-way valve MV1 is set between the water tank heat exchange device WTC and the floor heating heat exchange device WHE During the period, the electric two-way valve MV2 is set between the floor heating heat exchange device WHE and the floor heating FLH. When the electric three-way valve is in the ON state, the first communication port A communicates with the second communication port B, and the third communication port A The first communication port C is blocked; when the electric three-way valve is in the OFF state, the first communication port A is connected to the third communication port C, and is blocked from the second communication port B.
本发明公开的地暖热水两联供系统，由于地暖管内需要的温度一般低于生活用水的温度，将地暖换热装置WHE设置在水箱换热装置WTC的后端，并且在二者之间通过设置连通管与电动三通阀MV1的第三个连通口C连通，通过设置的电动三通阀MV1，在电动三通阀MV1处于ON状态时，实现热泵机组HP与水箱换热装置WTC以及热泵机组HP与地暖换热装置WHE的同时换热，在在电动三通阀MV1处于OFF状态时，热泵机组HP只对地暖换热装置WHE单独供热，提高地暖FLH中的水温。In the combined supply system for floor heating and hot water disclosed in the present invention, since the temperature required in the floor heating pipe is generally lower than the temperature of domestic water, the floor heating heat exchange device WHE is installed at the rear end of the water tank heat exchange device WTC, and passes through The connecting pipe is set to communicate with the third communication port C of the electric three-way valve MV1. Through the set electric three-way valve MV1, when the electric three-way valve MV1 is in the ON state, the heat pump unit HP and the water tank heat exchange device WTC and the heat pump are realized. The unit HP and the floor heating heat exchange device WHE exchange heat at the same time. When the electric three-way valve MV1 is in the OFF state, the heat pump unit HP only supplies heat to the floor heating heat exchange device WHE alone to increase the water temperature in the floor heating FLH.
本发明公开的地暖热水两联供系统，通过一套热泵装置实现对生活热水和地暖热水的两联供热，优先将热泵与水箱换热装置WTC换热，保证生活热水的温度，在地暖管温度过低时，又能够单独对地暖换热装置WHE换热，提高换热能量的利用率，同时使得生活用水的温度和地暖供热的温度都能够满足生活需要，提高生活舒适度。The ground heating and hot water dual-supply system disclosed in the present invention realizes the dual heating of domestic hot water and ground heating hot water through a set of heat pump devices, and preferentially exchanges heat between the heat pump and the water tank heat exchange device WTC to ensure the temperature of domestic hot water , when the temperature of the floor heating pipe is too low, it can also separately exchange heat for the floor heating heat exchange device WHE, improve the utilization rate of heat exchange energy, and at the same time make the temperature of domestic water and the temperature of floor heating heating meet the needs of life and improve the comfort of life Spend.
作为本发明的一个较佳示例，所述供暖水泵P1为定频水泵，所述地暖水泵P2为变频水泵，地暖管供热温度较低时，地暖水泵P2的频率提升，地暖管供热温度较高时，地暖水泵P2的频率降低。As a preferred example of the present invention, the heating water pump P1 is a fixed frequency water pump, and the floor heating water pump P2 is a variable frequency water pump. When the heating temperature of the floor heating pipe is low, the frequency of the floor heating water pump P2 is increased, and the heating temperature of the floor heating pipe is relatively high When it is high, the frequency of floor heating water pump P2 is reduced.
该设置通过将控制地暖管内水流量的地暖水泵P2设置为变频水泵，使得地暖管供热始终可以保持在人体较为舒适的温度，进一步提高生活的舒适度。This setting sets the floor heating water pump P2 that controls the water flow in the floor heating pipe as a frequency conversion water pump, so that the heating of the floor heating pipe can always be kept at a relatively comfortable temperature for the human body, further improving the comfort of life.
作为本发明的一个较佳示例，所述地暖换热装置WHE为板式换热装置，所述水箱换热装置WTC为盘管式换热装置。As a preferred example of the present invention, the floor heating heat exchange device WHE is a plate heat exchange device, and the water tank heat exchange device WTC is a coil heat exchange device.
由于水箱换热装置WTC设置在热水水箱HWT内部，通过设置的换热盘管能够充分、快速的实现换热盘管与热水水箱HWT内部水流的换热，而地暖换热装置WHE一方面要对水箱换热装置WTC末端流出的换热介质进行吸热储热，同时还要对地暖FLH中的供热水管进行传热散热，保证换热的可靠性。Since the water tank heat exchange device WTC is installed inside the hot water tank HWT, the heat exchange coil can fully and quickly realize the heat exchange between the heat exchange coil and the water flow inside the hot water tank HWT, while the floor heating heat exchange device WHE on the one hand It is necessary to absorb heat and store heat for the heat exchange medium flowing out of the WTC terminal of the water tank heat exchange device, and at the same time conduct heat transfer and heat dissipation for the water supply pipe in the floor heating FLH to ensure the reliability of heat exchange.
该设置提高了换热的效率，进一步提高热量能量的利用率，避免能量浪费。This setting improves the efficiency of heat exchange, further improves the utilization rate of heat energy, and avoids energy waste.
实施例2Example 2
如图1～2所示，本发明还公开了一种地暖热水两联供控制方法，应用于如实施例1中所述的地暖热水两联供系统，包括以下工作模式：As shown in Figures 1 to 2, the present invention also discloses a method for controlling the dual supply of ground heating and hot water, which is applied to the dual supply system of ground heating and hot water as described in Example 1, including the following working modes:
热水供热模式；Hot water heating mode;
地暖供热模式；Floor heating heating mode;
热水+地暖供热模式。Hot water + floor heating heating mode.
当地暖热水两联供系统选择热水+地暖供热模式的工作工况时，当第一温度传感器Twt检测的水箱内部温度小于水箱设定温度T水箱设定-T1时，热泵机组HP运行，电动三通阀MV1处于ON状态；电动二通阀MV2得电打开，供暖水泵P1、地暖水泵P2运行，当第一温度传感器Twt检测的水箱内部温度大于水箱设定温度T水箱设定+T2时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。When the combined heating and hot water supply system selects the working condition of the hot water + floor heating heating mode, when the internal temperature of the water tank detected by the first temperature sensor Twt is lower than the set temperature of the water tank T Water tank setting - T 1 , the heat pump unit HP Running, the electric three-way valve MV1 is in the ON state; the electric two-way valve MV2 is powered on, and the heating water pump P1 and floor heating water pump P2 are running. When the internal temperature of the water tank detected by the first temperature sensor Twt is greater than the set temperature of the water tank T At T 2 , the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
当地暖热水两联供系统选择模式选择热水供热模式的工作工况时，当第一温度传感器Twt检测的水箱内部温度小于水箱设定温度T水箱设定-T3时，热泵机组HP运行，电动三通阀MV1处于ON状态；电动二通阀MV2失电闭合；供暖水泵P1运行，地暖水泵P2不运行，当第一温度传感器Twt检测的水箱内部温度大于水箱设定温度T水箱设定+T4时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。When the selection mode of the local heating and hot water dual supply system selects the working condition of the hot water heating mode, when the internal temperature of the water tank detected by the first temperature sensor Twt is lower than the set temperature of the water tank T and the water tank setting - T 3 , the heat pump unit HP running, the electric three-way valve MV1 is in the ON state; the electric two-way valve MV2 is de-energized and closed; the heating water pump P1 is running, and the floor heating water pump P2 is not running. When +T is set to 4 , the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
当地暖热水两联供系统选择模式选择地暖供热模式的工作工况时，当第二温度传感器Twi-FLH的检测温度小于地暖设定温度T地暖设定+T5时，热泵机组HP运行，电动三通阀MV1处于OFF状态；电动二通阀MV2得电打开；供暖水泵P1、地暖水泵P2运行，当第二温度传感器Twi-FLH的检测温度大于地暖设定温度T地暖设定+T6时，热泵机组HP停止运行，电动三通阀MV1处于OFF状态。When the ground heating and hot water dual supply system selection mode selects the working condition of the floor heating heating mode, when the detection temperature of the second temperature sensor Twi-FLH is lower than the floor heating set temperature T floor heating setting + T 5 , the heat pump unit HP runs , the electric three-way valve MV1 is in the OFF state; the electric two-way valve MV2 is energized to open; the heating water pump P1 and the floor heating water pump P2 are running, when the detection temperature of the second temperature sensor Twi-FLH is greater than the floor heating set temperature T At 6 o'clock, the heat pump unit HP stops running, and the electric three-way valve MV1 is in the OFF state.
本发明所述的地暖热水两联供控制方法，基于实施例1中所述的地暖热水两联供系统，通过设置地暖热水两联供系统在不同工作工况下的控制程序，可实现制取生活热水高水温热水，同时实现地暖低水温供热的目的，提高了热量的利用率以及人们在使用地暖热水两联供系统的舒适度。The method for controlling dual-supply of ground heating and hot water in the present invention is based on the dual-supply system of ground heating and hot water described in Embodiment 1. By setting the control program of the dual-supply system of ground heating and hot water under different working conditions, it can Realize the production of domestic hot water with high water temperature and hot water, and at the same time realize the purpose of floor heating and low water temperature heating, improve the utilization rate of heat and the comfort of people using the floor heating and hot water dual supply system.
作为本发明的较佳示例，T1、T2、T3、T4、T5、T6为根据经验设置的预设温度值，T1的取值范围为0.5～5℃，T2的取值范围为0.5～5℃，T3的取值范围为0.5～5℃，T4的取值范围为0.5～5℃，T5的取值范围为5～15℃，T6的取值范围为1～5℃。作为优选，T1取1℃，T2取1℃，T3取1℃，T4取1℃，T5取10℃，T6取2℃。As a preferred example of the present invention, T 1 , T 2 , T 3 , T 4 , T 5 , and T 6 are preset temperature values set according to experience, the value range of T 1 is 0.5-5°C, and the value of T 2 The value range is 0.5～5℃, the value range of T3 is 0.5～5℃, the value range of T4 is 0.5～5℃, the value range of T5 is 5～15℃, the value of T6 is The range is 1-5°C. Preferably, T1 is 1°C, T2 is 1°C, T3 is 1°C, T4 is 1°C, T5 is 10°C, and T6 is 2°C.
该设置既保证了生活用水的温度以及供暖管的供热温度，精准、可靠的实现制取生活热水高水温热水以及同时实现地暖低水温供热的目标，提高了生活的舒适度，又避免换热能量的浪费，提高能量利用率。This setting not only ensures the temperature of domestic water and the heating temperature of the heating pipe, but also accurately and reliably achieves the goal of producing domestic hot water with high water temperature and simultaneously achieving the goal of heating with low water temperature for floor heating, which improves the comfort of life and also improves the comfort of life. Avoid waste of heat exchange energy and improve energy utilization.
作为本发明的示例，所述第一温度传感器Twt检测的水箱内部温度可以为实时温度检测，也可以为周期性进行的温度检测，该检测周期的时长根据经验设置。As an example of the present invention, the internal temperature of the water tank detected by the first temperature sensor Twt may be real-time temperature detection or periodic temperature detection, and the duration of the detection cycle is set according to experience.
作为本发明的示例，所述第二温度传感器Twi-FLH检测的FLH地暖盘管温度可以为实时温度检测，也可以为周期性进行的温度检测，该检测周期的时长根据经验设置。As an example of the present invention, the temperature of the FLH floor heating coil detected by the second temperature sensor Twi-FLH may be real-time temperature detection or periodic temperature detection, and the duration of the detection cycle is set according to experience.
作为本发明的较佳示例，地暖水泵P2为变频水泵，其频率控制按照如下的控制方式进行：As a preferred example of the present invention, the ground heating water pump P2 is a variable frequency water pump, and its frequency control is carried out according to the following control method:
设定第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的差值为△T，即△T＝TTwi-FLH-T地暖设定；Set the difference between the detection temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T to be ΔT, that is, ΔT=T Twi-FLH -T floor heating setting ;
地暖水泵P2的输入占空比F＝上次输入占空比F上+△F；The input duty ratio F of the floor heating water pump P2 = the last input duty ratio F+△F;
△F与△T按照如下的关系进行控制：△F and △T are controlled according to the following relationship:
在a≤△T≤b时，△F＝0；When a≤ΔT≤b, ΔF=0;
在△T＜a时，△F＜0；When △T<a, △F<0;
在△T＞b时，△F＞0；When ΔT>b, ΔF>0;
其中，在a＜0℃，b＞0℃。Wherein, at a<0°C, b>0°C.
该设置通过将地暖水泵P2在第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的温差为负值时，提高地暖水泵P2的输入占空比F，提高地暖管的供暖温度，在第二温度传感器Twi-FLH的检测温度与地暖设定温度T地暖设定的温差为正值时，降低地暖水泵P2的输入占空比F，避免地暖管的供暖温度持续过快增长，使其维持在较为舒适的供暖温度。This setting increases the input duty ratio F of the floor heating water pump P2 when the temperature difference between the detected temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T and the floor heating setting is a negative value, so as to improve the heating of the floor heating pipe. Temperature, when the temperature difference between the detection temperature of the second temperature sensor Twi-FLH and the floor heating set temperature T is a positive value, the input duty cycle F of the floor heating water pump P2 is reduced to avoid the heating temperature of the floor heating pipe from continuing to increase too rapidly , so that it can be maintained at a more comfortable heating temperature.
根据经验示例，a的取值范围为-05℃～-2℃，b的取值范围为05℃～2℃，作为优选，a取-1℃，b取1℃，即在-1≤△T≤1时，△F＝0。According to empirical examples, the value range of a is -05°C～-2°C, and the value range of b is 05°C～2°C. As a preference, a is set at -1°C, and b is set at 1°C, that is, at -1≤△ When T≤1, ΔF=0.
作为本发明的较佳示例，在△T＜a的区间，分为至少两个区段，所述区段对应△T的温度值越低，△F的取值越小；在△T＞b的区间，分为至少两个区段，所述区段对应△T的温度值越低，△F的取值越大。As a preferred example of the present invention, in the interval of ΔT<a, it is divided into at least two sections, the lower the temperature value corresponding to ΔT in the section, the smaller the value of ΔF; when ΔT>b The interval is divided into at least two sections, the lower the temperature value corresponding to ΔT in the section, the larger the value of ΔF.
作为本发明的一个较佳示例，△T与△F对应关系如下表所示：As a preferred example of the present invention, the corresponding relationship between ΔT and ΔF is shown in the following table:
通过设置的地暖水泵P2变频控制逻辑，在地暖供热模式或者热水+地暖供热模式下，通过控制地暖水泵流量使地暖水温维持较低的温度值，供地暖使用，提高了热量的利用率，保障人们在使用地暖热水两联供系统时供暖的舒适度。Through the set floor heating water pump P2 frequency conversion control logic, in the floor heating heating mode or hot water + floor heating heating mode, by controlling the flow of the floor heating water pump, the floor heating water temperature can be maintained at a lower temperature value for floor heating, which improves the utilization rate of heat , to ensure the comfort of heating when people use the ground heating and hot water dual-supply system.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411147.6A CN113970122B (en) | 2021-11-25 | 2021-11-25 | Floor heating hot water dual-combined supply system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411147.6A CN113970122B (en) | 2021-11-25 | 2021-11-25 | Floor heating hot water dual-combined supply system and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113970122A CN113970122A (en) | 2022-01-25 |
| CN113970122B true CN113970122B (en) | 2023-03-31 |
Family
ID=79590281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111411147.6A Active CN113970122B (en) | 2021-11-25 | 2021-11-25 | Floor heating hot water dual-combined supply system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113970122B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451568B (en) * | 2022-09-26 | 2024-05-10 | 宁波奥克斯电气股份有限公司 | Water temperature control system and control method thereof, air conditioner, and computer readable storage medium |
| WO2024192962A1 (en) * | 2023-03-21 | 2024-09-26 | 青岛海信日立空调系统有限公司 | Heat pump system and control method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981387A (en) * | 2008-03-27 | 2011-02-23 | 庆东纳碧安株式会社 | Boiler suppliable heating-water and hot-water simultaneously |
| CN207661863U (en) * | 2017-11-17 | 2018-07-27 | 珠海格力电器股份有限公司 | Heat pump system |
| CN110671841A (en) * | 2019-11-06 | 2020-01-10 | 浙江正理生能科技有限公司 | CO2 transcritical air source heat pump system with multi-terminal low temperature thermal energy efficient utilization |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202253897U (en) * | 2011-09-05 | 2012-05-30 | 浙江创能新能源科技有限公司 | Heat pump system for producing hot water and floor heating |
| JP5892120B2 (en) * | 2013-08-02 | 2016-03-23 | 三菱電機株式会社 | Heating hot water system |
| CN105202808A (en) * | 2015-10-12 | 2015-12-30 | 广东纽恩泰新能源科技发展有限公司 | Three-cogeneration system for variable-frequency heating machine |
| CN207471642U (en) * | 2017-04-23 | 2018-06-08 | 广东中欧芒果新能源科技有限公司 | It is a kind of efficiently to warm up Hot water units |
| CN108266782A (en) * | 2018-01-10 | 2018-07-10 | 中国科学院理化技术研究所 | Heating system |
| CN109282339A (en) * | 2018-08-13 | 2019-01-29 | 珠海格力电器股份有限公司 | Heat pump unit and control method thereof |
| CN109751787A (en) * | 2019-03-01 | 2019-05-14 | 南京天加环境科技有限公司 | A kind of control method of air-conditioning ground heating one unit |
| CN210772442U (en) * | 2019-06-25 | 2020-06-16 | 万家乐空气能科技有限公司 | Heat pump two-combined-supply system |
| CN110925852B (en) * | 2019-11-12 | 2020-11-13 | 珠海格力电器股份有限公司 | Control method of water heating unit and water heating unit |
| CN112762639B (en) * | 2021-01-08 | 2023-06-13 | 青岛海信日立空调系统有限公司 | Heat pump system and control method |
-
2021
- 2021-11-25 CN CN202111411147.6A patent/CN113970122B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981387A (en) * | 2008-03-27 | 2011-02-23 | 庆东纳碧安株式会社 | Boiler suppliable heating-water and hot-water simultaneously |
| CN207661863U (en) * | 2017-11-17 | 2018-07-27 | 珠海格力电器股份有限公司 | Heat pump system |
| CN110671841A (en) * | 2019-11-06 | 2020-01-10 | 浙江正理生能科技有限公司 | CO2 transcritical air source heat pump system with multi-terminal low temperature thermal energy efficient utilization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113970122A (en) | 2022-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113970122B (en) | Floor heating hot water dual-combined supply system and control method | |
| CN103542614B (en) | heating and refrigerating system | |
| CN204494589U (en) | A kind of circulation directly-heated mixing hydraulic module | |
| CN103256145A (en) | Combined cooling, heating and power production system based on Stirling engine | |
| CN110081494A (en) | A kind of heat pump heating device and heating system | |
| CN209782789U (en) | Solar energy and gas integrated form heating device | |
| CN203443074U (en) | Refrigerating and heating type gas water heater | |
| CN215637504U (en) | Heat pump system | |
| CN202158657U (en) | Double-system instantaneous-heating type heat pump water heater | |
| CN103968441B (en) | A kind of multimode positive displacement heat-exchange system and heat exchange processing method thereof | |
| CN211001020U (en) | Efficient seat refrigerating and heating device | |
| CN107543366A (en) | A kind of temperature regulation system of vacuum tank at lower voltages | |
| CN103836715B (en) | A kind of solar gas compound energy hot-water heating system | |
| CN203550283U (en) | Heating and refrigerating system | |
| CN203823859U (en) | Multi-mode positive displacement heat exchanger and heat exchanging system | |
| CN110006124A (en) | A solar-assisted heating, cooling and hot water triple heat pump system | |
| CN115325604B (en) | Temperature adjusting device of hot water system and control method of temperature adjusting device of hot water system | |
| CN219955461U (en) | Energy-saving device for heating domestic water by using heat of heating water | |
| CN219036765U (en) | Energy-saving heating system | |
| CN203964223U (en) | A kind of modular cold and hot household electrical appliances | |
| CN218210097U (en) | Multi-energy hot water system | |
| CN212057724U (en) | Four-mode intelligent constant-temperature electric water heater | |
| CN113623814B (en) | Central air conditioner water circulation control system and method for quickly raising temperature | |
| CN206055943U (en) | Fast regulating temperature formula electric heater | |
| CN111306780B (en) | Wall-mounted furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220928 Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Applicant after: NINGBO AUX ELECTRIC Co.,Ltd. Applicant after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Applicant before: NINGBO AUX ELECTRIC Co.,Ltd. Applicant before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Country or region after: China Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Country or region before: China Patentee before: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. |
|
| CP03 | Change of name, title or address |