CN212565938U - Water mixing device - Google Patents
Water mixing device Download PDFInfo
- Publication number
- CN212565938U CN212565938U CN202020477074.5U CN202020477074U CN212565938U CN 212565938 U CN212565938 U CN 212565938U CN 202020477074 U CN202020477074 U CN 202020477074U CN 212565938 U CN212565938 U CN 212565938U
- Authority
- CN
- China
- Prior art keywords
- water
- temperature sensor
- liquid outlet
- pipeline
- pump
- 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
Images
Landscapes
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a water admixing device relates to the air conditioning system field, including water supply equipment, control by temperature change three-way valve, muddy water pump, check valve and temperature sensor, water supply equipment liquid outlet and the liquid channel who mixes the water pump, temperature sensor's liquid inlet pass through delivery pipe and wet return and are connected, and temperature sensor's liquid outlet divide into two branch roads: the first branch is as follows: a liquid outlet of the temperature sensor is connected with a liquid inlet of the water supply equipment through a water return pipe, and the section of main pipeline is provided with a stop valve and a balance valve; the second branch is as follows: the liquid outlet of the temperature sensor is connected with the liquid inlet of the water mixing pump through a pipeline, the main pipeline is provided with a temperature control three-way valve, and the liquid inlet pipeline and the liquid outlet pipeline of the water mixing pump are respectively provided with a stop valve and a one-way valve, according to the technical scheme of the utility model, under the working condition in summer, the refrigerant water system saves the operation cost by about 30% -40%; under the working condition in winter, the heating medium water system saves the operation cost by at least 60 percent and has the characteristics of simple structure and energy conservation.
Description
Technical Field
The utility model relates to an air conditioning system field, concretely relates to water admixing device.
Background
Since the time of sale, water-cooled VRF air conditioning systems have been favored by designers, and whether the efficiency and stability of the system, or the operational reliability in extreme climates, or the convenience of host installation, have a great tendency to replace air-cooled VRF air conditioning systems, but through the analysis of the operational data of several established projects, the operating cost of the cold (hot) medium water system side of the water-cooled VRF air conditioning system is higher and greatly exceeds the operating cost of the cooling water system of a conventional central air conditioner, which is why the energy saving performance of the water-cooled VRF air conditioning system is well known as a single machine, and why the energy saving performance of a plurality of water-cooled VRF air conditioning systems is questioned when combined into one system.
The water cooling VRF air conditioner main unit cold (hot) medium water quantity is required to be not less than 80% of rated flow, which is equivalent to a constant flow system, and a real variable flow system cannot be realized. According to statistics, the average load rate of the air conditioning system is generally between 60 and 70 percent, and if the air conditioning chilled (hot) water system is a constant flow system, the energy consumption of the delivery of the chilled (hot) water system is 30 to 40 percent higher than the average energy consumption.
For the cold (hot) medium water main system, the flow of the system can be determined according to the cooling (heating) load and the temperature difference of 5 ℃, but not according to the cooling water quantity required by all air conditioner main machines, so that the cold (hot) medium water system is prevented from running under the working condition of small temperature difference and large flow.
For hot summer and cold winter areas, the heat load of a building in winter is generally 70% of the cold load in summer, considering that the COP =4.0 of an air conditioner host, the heating load of heating medium water in winter is 52.5% of the cooling load of cooling medium water in summer, and if the temperature difference is 5 degrees, the water flow is half of the difference, but in the practical project, the cold (hot) medium water amount of the water-cooling VRF air conditioner host is required to be not less than 80% of the rated flow, so that the operation in winter is performed under the working condition of large flow and small temperature difference, which is also the reason that the operation cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the problems existing in the prior art, the object of the utility model is to provide a water mixing device, which has the characteristics of simple structure and energy saving.
The water mixing device is characterized by comprising a water supply device, a temperature control three-way valve, a water mixing pump, a one-way valve and a temperature sensor, wherein a liquid outlet of the water supply device is connected with a liquid channel of the water mixing pump and a liquid inlet of the temperature sensor through a water supply pipe and a water return pipe, and a liquid outlet of the temperature sensor is divided into two branches: the first branch is as follows: a liquid outlet of the temperature sensor is connected with a liquid inlet of the water supply equipment through a water return pipe, and the section of main pipeline is provided with a stop valve and a balance valve; the second branch is as follows: the liquid outlet of the temperature sensor is connected with the liquid inlet of the water mixing pump through a pipeline, the main pipeline is provided with a temperature control three-way valve, and the liquid inlet pipeline and the liquid outlet pipeline of the water mixing pump are respectively provided with a stop valve and a one-way valve.
The water mixing device is characterized in that the water mixing pump is a constant-flow circulating water pump.
The water mixing device is characterized in that the temperature control three-way valve is a converging type temperature control three-way valve which is provided with two inlets and one outlet, and the flow characteristic of a valve clack of the temperature control three-way valve is linear.
The water mixing device is characterized by comprising a soft joint, wherein the liquid inlet pipeline and the liquid outlet pipeline of the water mixing pump are both provided with the soft joint.
The water mixing device is applied to a water-cooling VRF air conditioning system and is characterized by comprising the water mixing device, a refrigerant water pump, a heating medium water pump, cold water source equipment, hot water source equipment and a group of water-cooling VRF air conditioning host, wherein a liquid outlet of the cold water source equipment is connected with a liquid channel of the refrigerant water pump, a liquid channel of the water mixing device, a liquid channel of the water-cooling VRF air conditioning host and a liquid inlet of a temperature sensor through a water supply pipe and a water return pipe, and a liquid outlet of the temperature sensor is divided into two branches: the first branch is as follows: a liquid outlet of the temperature sensor is connected with a liquid inlet of the cold water source equipment through a water return pipeline; the second branch is as follows: the liquid outlet of the temperature sensor is connected with the liquid inlet of the water mixing pump through a pipeline, and the main pipeline is provided with a temperature control three-way valve; the hot water source equipment liquid outlet is connected with the hot medium water pump liquid channel, the water mixing pump liquid channel of the water mixing device, the liquid channel of the water-cooling VRF air conditioner host machine and the liquid inlet of the temperature sensor through a water supply pipe and a water return pipe, and the liquid outlet of the temperature sensor is divided into two branches: the first branch is as follows: a liquid outlet of the temperature sensor is connected with a liquid inlet of the hot water source equipment through a water return pipeline; the second branch is as follows: the liquid outlet of the temperature sensor is connected with the liquid inlet of the water mixing pump through a pipeline, and the main pipeline is provided with a temperature control three-way valve.
The water mixing device is applied to a water-cooling VRF air conditioning system and is characterized in that a stop valve and a y-type filter are arranged at a liquid inlet of a main machine of the water-cooling VRF air conditioning, and a stop valve is arranged at a liquid outlet of the main machine.
The water mixing device is applied to a water-cooling VRF air conditioning system and is characterized in that 2 refrigerant water pumps are provided, a stop valve, a y-shaped filter and a soft joint are arranged at a liquid inlet of the refrigerant water pump, and a soft joint, a one-way valve and a stop valve are arranged at a liquid outlet of the refrigerant water pump.
The application of the water mixing device in the water-cooling VRF air conditioning system is characterized in that the number of the heat medium water pumps is 2, a stop valve, a y-shaped filter and a soft joint are arranged at a liquid inlet of the heat medium water pump, and a soft joint, a one-way valve and a stop valve are arranged at a liquid outlet of the heat medium water pump.
The utility model has the advantages that:
(1) compared with the prior art, the technical scheme of the utility model can ensure that the cold (hot) medium water entering the water-cooling VRF air conditioner main unit is in constant flow or close to constant flow operation, the total cold (hot) medium water system operates under the working condition of large temperature difference and small flow, and the variable flow operation can be realized according to the change of load;
(2) by adopting the technical scheme of the utility model, the operating cost of the refrigerant water system is saved by about 30-40% under the working condition in summer; under the working condition of winter, the operation cost of the heat medium water system is saved by at least 60 percent;
(3) the utility model has the characteristics of simple structure, energy-conservation.
Drawings
Fig. 1 is a schematic view of a water mixing device according to the present invention;
fig. 2 is a schematic diagram of the water mixing device of the present invention applied to a water-cooled VRF air conditioning system.
In the figure: 1-a water mixing pump; 2-a one-way valve; 3-water cooling of the VRF air conditioner host; 4-a temperature sensor; 5-temperature control three-way valve; 6-refrigerant water pump; 7-heat medium water pump.
Detailed Description
The invention will be further described with reference to the drawings and examples, but the scope of protection of the invention is not limited to the scope described.
As shown in fig. 1-2, a water admixing device, water admixing device include water source equipment, control by temperature change three-way valve 5, muddy water pump 1, check valve 2 and temperature sensor 4, and water source equipment liquid outlet passes through delivery pipe and wet return with the liquid channel of muddy water pump 1, temperature sensor 4's liquid inlet and is connected, the utility model discloses a temperature sensor 4 mainly used measures the return water temperature of the cold (hot) medium water of host computer side, and temperature sensor 4's liquid outlet divide into two branch roads: the first branch is as follows: a liquid outlet of the temperature sensor 4 is connected with a liquid inlet of the water source equipment through a water return pipeline, and the main pipeline is provided with a stop valve and a balance valve; the second branch is as follows: the liquid outlet of temperature sensor 4 passes through the tube coupling with the liquid inlet of mixing water pump 1, and this main line is equipped with temperature-sensing three-way valve 5, the utility model discloses the temperature-sensing three-way valve 5 that sets up is confluence formula temperature-sensing three-way valve, according to temperature variation of temperature-sensing three-way valve 5, the motion of valve clack in the control valve to the realization is to the control of flow, and the flow characteristic of valve clack is linear. The confluence temperature regulating valve is provided with two inlets and one outlet; when one valve seat tends to be closed, the other valve seat tends to be fully opened, and the opening degree of the valve clack is adjusted, so that the proper flow rate can be obtained.
All be equipped with soft joint in mixing 1 liquid of water pump, the utility model discloses the soft joint that sets up can reduce vibration and noise to can be to the expend with heat and contract with cold compensation effect that arouses because of temperature variation, the liquid outlet pipeline of mixing water pump 1 is equipped with check valve 2. The water mixing pump 1 is a constant flow pump, the flow of the water pump is determined by the cooling side rated flow of the water-cooling VRF air conditioning host 3 born by the water pump, and the lift is to overcome the host differential pressure and the on-way and local resistance of the cold (hot) medium side branch pipe.
The utility model discloses an among the water admixing device uses water-cooling VRF air conditioning system, can guarantee that the cold (hot) medium water that gets into water-cooling VRF air conditioning host 3 is for the constant flow or be close the constant flow operation, and total cold (hot) medium water system moves under big difference in temperature little flow operating mode to can realize the variable flow operation according to the change of load. Include water mixing device, refrigerant water pump 6, heat medium water pump 7, cold water source equipment, hot water source equipment and a set of water-cooling VRF air conditioner host computer, during the operating mode in summer, cold water source equipment liquid outlet is connected by delivery pipe and wet return with 6 liquid passage of refrigerant water pump, water mixing device's 1 liquid passage of water mixing pump, the liquid passage of water-cooling VRF air conditioner host computer 3, temperature sensor 4's liquid inlet, and temperature sensor 4's liquid outlet divide into two branches: the first branch is as follows: a liquid outlet of the temperature sensor 4 is connected with a liquid inlet of cold water source equipment through a water return pipeline; the second branch is as follows: the liquid outlet of the temperature sensor 4 is connected with the liquid inlet of the water mixing pump 1 through a pipeline, the main pipeline is provided with a temperature control three-way valve 5, the liquid inlet of the water-cooling VRF air conditioner host 3 is provided with a stop valve and a y-type filter, the y-type filter is used for filtering impurities so as to guarantee the normal operation of the host, and the liquid outlet of the water-cooling VRF air conditioner host 3 is provided with the stop valve. Two refrigerant water pumps 6 are provided, one is normally operated, the other is standby, a stop valve, a y filter and a soft joint are arranged on a liquid inlet pipeline of the refrigerant water pump 6, and a soft joint, a one-way valve and a stop valve are arranged on a liquid outlet pipeline of the refrigerant water pump 6.
During winter's operating mode, hot water source equipment liquid outlet is connected by delivery pipe and wet return with heat medium water pump 7 liquid passage, water admixing device's 1 liquid passage of water mixing pump, water-cooling VRF air conditioner host 3's liquid passage, temperature sensor 4's liquid inlet, and temperature sensor 4's liquid outlet divide into two branches: the first branch is as follows: a liquid outlet of the temperature sensor 4 is connected with a liquid inlet of the hot water source equipment through a water return pipeline; the second branch is as follows: the liquid outlet of the temperature sensor 4 is connected with the liquid inlet of the water mixing pump 1 through a pipeline, the main pipeline is provided with a temperature control three-way valve 5, the heat medium water pump 7 is divided into two pipelines, one pipeline works normally, the other pipeline is standby, the liquid inlet pipeline of the heat medium water pump 7 is provided with a stop valve, a y filter and a soft joint, and the liquid outlet pipeline of the heat medium water pump is provided with a soft joint, a one-way valve and a stop valve.
In summer, T is set as the set value of the temperature sensor 4, and the initial temperature is T calculated according to 100% load in an ideal state0The water enters the water-cooling VRF air-conditioning main machine 3, and the temperature of the water is increased to T after the water exchanges heat with the air in the water-cooling VRF air-conditioning main machine1When T is1When the T is larger than or equal to T, the temperature control three-way valve 5 controls the flow of the water return pipeline entering the water mixing pump 1 to be reduced, and the flow of the water supply pipeline entering the water mixing pump 1 is increased; in fact, T is usually the case1<T, the flow rate that the return water pipeline entered the water mixing pump 1 is controlled to increase by the temperature control three-way valve 5, and the flow rate that the supply pipeline entered the water mixing pump 1 is reduced.
In winter, setting T as the set value of the temperature sensor 4, ideally calculating according to 100% load, and setting the initial temperature as T0The water enters the water-cooling VRF air-conditioning main machine 3, and the temperature of the water is reduced to T after the water exchanges heat with the air in the water-cooling VRF air-conditioning main machine1When T is1When the load is larger than or equal to T, the load is reduced, the temperature control three-way valve 5 increases the flow of the water return pipeline entering the water mixing pump 1, and reduces the flow of the water supply pipeline entering the water mixing pump 1; when T is1<And T, indicating that the load rises, controlling the flow rate of the water supply loop entering the water mixing pump 1 to increase by the temperature control three-way valve 5, and reducing the flow rate of the water return pipeline entering the water mixing pump 1.
Example 1
According to the calculation of 50% load factor, in summer, the set value of the temperature sensor 4 is set to be 35 ℃, the temperature of water entering the water-cooling VRF air-conditioning host machine 3 is 30 ℃, after heat exchange with air in the air-conditioning host machine, the temperature of the water is lower than the set temperature of 35 ℃, the flow of the water returning pipeline entering the water mixing pump 1 is increased through the temperature control three-way valve 5, the flow of the water supplying pipeline entering the water mixing pump 1 is reduced, the temperature of the water entering the water-cooling VRF air-conditioning host machine 3 is 32.5 ℃, the temperature of the water entering the water-cooling VRF air-conditioning host machine 3 reaches 35 ℃ after heat exchange, and the water enters cold source equipment.
In winter, the set value of the temperature sensor 4 is set to be 15 ℃, the temperature of water entering the water-cooled VRF air-conditioning main machine 3 is 20 ℃, after heat exchange with air in the air-conditioning main machine, the temperature of the water is higher than the set temperature of 15 ℃, the temperature control three-way valve 5 increases the flow of the water returning pipeline entering the water mixing pump 1 at the moment, reduces the flow of the water supplying pipeline entering the water mixing pump 1, simultaneously the temperature of the water entering the water-cooled VRF air-conditioning main machine 3 is 17.5 ℃, the temperature of the water from the water-cooled VRF air-conditioning main machine 3 reaches 15 ℃ after heat exchange, and the water enters the heat source.
Claims (4)
1. The utility model provides a water mixing device, its characterized in that includes water supply equipment, control by temperature change three-way valve (5), mixes water pump (1), check valve (2) and temperature sensor (4), water supply equipment liquid outlet passes through delivery pipe and wet return with the liquid channel of mixing water pump (1), the liquid entry of temperature sensor (4) and is connected, the liquid outlet of temperature sensor (4) divide into two branches: the first branch is as follows: a liquid outlet of the temperature sensor (4) is connected with a liquid inlet of the water supply equipment through a water return pipe, and the section of main pipeline is provided with a stop valve and a balance valve; the second branch is as follows: the liquid outlet of the temperature sensor (4) is connected with the liquid inlet of the water mixing pump (1) through a pipeline, the main pipeline is provided with a temperature control three-way valve (5), and the liquid inlet pipeline and the liquid outlet pipeline of the water mixing pump (1) are respectively provided with a stop valve and a one-way valve (2).
2. The mixing device according to claim 1, characterized in that the mixing pump (1) is a constant-flow circulating water pump.
3. The mixing device according to claim 1, characterized in that the temperature-controlled three-way valve (5) is a confluent temperature-controlled three-way valve with two inlets and one outlet, and the flow characteristic of the flap of the temperature-controlled three-way valve (5) is linear.
4. A water mixing device according to claim 1, characterised by comprising a soft connection, wherein both the liquid inlet line and the liquid outlet line of the water mixing pump (1) are provided with a soft connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477074.5U CN212565938U (en) | 2020-04-03 | 2020-04-03 | Water mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477074.5U CN212565938U (en) | 2020-04-03 | 2020-04-03 | Water mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212565938U true CN212565938U (en) | 2021-02-19 |
Family
ID=74617239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020477074.5U Active CN212565938U (en) | 2020-04-03 | 2020-04-03 | Water mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212565938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221804A (en) * | 2022-12-30 | 2023-06-06 | 江苏港嘉节能科技有限公司 | Method and system for recycling waste heat of circulating water of thermal power plant |
-
2020
- 2020-04-03 CN CN202020477074.5U patent/CN212565938U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221804A (en) * | 2022-12-30 | 2023-06-06 | 江苏港嘉节能科技有限公司 | Method and system for recycling waste heat of circulating water of thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103047710B (en) | Motor room air conditioning system and control method | |
| CN104089328A (en) | Air conditioning system and method for controlling same | |
| CN204438368U (en) | A kind of water source heat pump air conditioning system | |
| CN105240958A (en) | Dual-cold-source three-pipe-system air conditioner system | |
| CN101749812A (en) | Multifunctional Air Conditioning System | |
| CN212565938U (en) | Water mixing device | |
| CN105066544B (en) | A kind of small temperature becomes combined type cooling circulating water system | |
| CN201237304Y (en) | Heat pump type air-conditioning and water-heating dual-purpose apparatus | |
| CN112556046A (en) | Directly ally oneself with air conditioner pipe-line system and air conditioner | |
| JP3733371B2 (en) | Temperature control system | |
| JP5595975B2 (en) | Air conditioning piping system | |
| CN205174623U (en) | Two control air conditioning system of double -cold -source | |
| CN104633789A (en) | Water source heat pump air conditioner system and control method thereof | |
| CN201126259Y (en) | Heat-pump type water-heater | |
| CN205655535U (en) | Energy -conserving actuating system of closed circulation cooling water | |
| CN205174624U (en) | Three control air conditioning system of double -cold -source | |
| CN204923222U (en) | Integral indoor set of radiation air -conditioning system | |
| CN114111104A (en) | Multi-split system | |
| CN108317588A (en) | Compound heating device, supply control method for heat and its device | |
| CN109539432A (en) | Air conditioner cooling water circulation system and air conditioning cooling water loop control scheme | |
| CN207317311U (en) | A kind of wind-cooled cold-water refrigeration system with condensation heat recovery device | |
| CN202254130U (en) | System for matching pump head flow rate of central air-conditioner water system with resistance flow of air-conditioner pipeline system | |
| CN109282398A (en) | A kind of air-conditioning hot water or cold water distributing system and method | |
| CN214536626U (en) | Refrigeration loop structure of industrial water-cooling air conditioner | |
| CN218096182U (en) | Water pivot pump station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |