Device for measuring parameters of water pump of air-conditioning water system

Abstract

The utility model discloses a device for measuring parameters of a water pump of an air-conditioning water system, which comprises an air-conditioning host, the output end of the air-conditioning host is connected with a plurality of air-conditioning indoor units, the output ends of the plurality of air-conditioning indoor units are connected with a pipeline assembly, and the other side of the pipeline assembly is mounted on the air-conditioning host. A first pressure gauge, a water pump, a second pressure gauge, a regulating valve, a third pressure gauge and a flow meter are installed on the pipeline assembly. Water pump parameters (flow and lift) are measured through the first pressure gauge 4, the second pressure gauge 6, the regulating valve 7, the third pressure gauge 8 and the flow meter 9, a proper water pump is selected according to the parameters after measurement and replaced for use, so that the actual required value of a unit is achieved, and the water pump can be adjusted by detecting the flow value and the pressure in front of and behind the water pump. Accurate water pump parameters, such as flow and lift, capable of guaranteeing the system operation effect can be obtained, surplus values are reduced or no surplus values exist, the power consumption of the water pump is reduced, and the energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating ventilation air conditioner, specifically related to a kind of for the measuring device of air conditioning water system water pump parameter. BACKGROUND

[0002] Heating ventilation air conditioner is the air conditioner with heating, ventilation and air conditioning function, mainly responsible for the heating, ventilation and air conditioning of indoor. It covers all functions of heating, ventilation and air conditioning, and is usually applied to large industrial buildings or office buildings, which can control the temperature and humidity of air, making indoor environment more comfortable.

[0003] The water system of heating ventilation air conditioner is an important component of heating ventilation air conditioner, which transfers cold and heat with water as medium, and transfers cold and heat between air conditioning buildings and inside the buildings. However, the parameters (flow, head) of water pump are selected according to the theoretical calculation of main resistance value and pipe length resistance value provided by equipment manufacturer, and the surplus coefficient is considered after calculation, so the flow and head of water pump are high, which is large insurance for air conditioning system operation, but the high flow and head of water pump will increase power consumption, and a part of power consumption does useless work, so that its power consumption is large, causing waste of electric power resources. UTILITY MODEL CONTENT

[0004] In view of the problems in the above background technology, the purpose of the utility model is to provide a kind of for the measuring device of air conditioning water system water pump parameter and method.

[0005] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of for the measuring device of air conditioning water system water pump parameter, including air conditioning host, the output of air conditioning host is connected with several air conditioning indoor units, the output of several air conditioning indoor units is connected with pipe assembly, the other side of pipe assembly is installed on air conditioning host, first pressure gauge, water pump, second pressure gauge, regulating valve, third pressure gauge and flowmeter are installed on pipe assembly.

[0007] Further limited, the pipe assembly includes flow pipe, water pump pipe and backflow pipe, the input of flow pipe is connected with the output of several air conditioning indoor units, the output of flow pipe is connected with the input of water pump pipe, the output of water pump pipe is connected with the input of backflow pipe, the output of backflow pipe is connected with air conditioning host. Such structure design is convenient for connection installation and use.

[0008] Further limited, two sides of the water pump pipeline are sealed and connected with the collecting pipeline and the return pipeline through flange locking.

[0009] Further limited, the first pressure gauge is installed on the collecting pipeline, the water pump is installed on the water pump pipeline, and the second pressure gauge, the adjusting valve, the third pressure gauge and the flow meter are sequentially installed on the return pipeline from left to right. Such a structural design facilitates installation and detection.

[0010] Further limited, the first pressure gauge, the second pressure gauge and the third pressure gauge are the same in size and structure, and are all high-precision pressure gauges. Such a structural design facilitates purchase and maintenance.

[0011] Further limited, the adjusting valve is a manual adjusting valve. Such a structural design adjusts the adjusting valve manually.

[0012] Further limited, the flow meter is a high-precision digital display flow meter. Such a structural design can make the flow meter display the detected values, so that the values can be more intuitively viewed.

[0013] Further limited, a first temperature sensor is installed at an input end of the air conditioner host, and a second temperature sensor is installed at an output end of the air conditioner host. Such a structural design detects the inlet and outlet water temperatures through the first temperature sensor and the second temperature sensor, displays the detected values on the air conditioner host, and facilitates the viewing of the operator.

[0014] The beneficial effects of the utility model are as follows: the utility model measures the water pump parameters (flow, lift) through the first pressure gauge, the second pressure gauge, the adjusting valve, the third pressure gauge and the flow meter, selects a suitable water pump according to the parameters after measurement, and uses the water pump, so that the actual demand value of the unit is reached, and the accurate water pump parameters (flow, lift) that can guarantee the system operation effect are obtained through detection of the flow value and the pressure before and after the water pump, surplus value is reduced or eliminated, the power consumption of the water pump is reduced, and the energy-saving effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0016] Figure 1 FIG. 1 is a structural schematic view of a measuring device for water pump parameters of an air conditioner water system according to an embodiment of the utility model;

[0017] The main element symbols are explained as follows:

[0018] 1. Air conditioning main unit; 2. Air conditioning indoor unit; 3. Piping assembly; 4. First pressure gauge; 5. Water pump; 6. Second pressure gauge; 7. Regulating valve; 8. Third pressure gauge; 9. Flow meter; 10. Manifold; 11. Water pump pipeline; 12. Return pipeline; 13. First temperature sensor; 14. Second temperature sensor. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, this utility model discloses a measuring device for water pump parameters in an air conditioning water system. The output end of the air conditioning main unit 1 is connected to several indoor air conditioning units 2, and the output ends of the several indoor air conditioning units 2 are connected to a pipeline assembly 3. The other side of the pipeline assembly 3 is installed on the air conditioning main unit 1. The pipeline assembly 3 is equipped with a first pressure gauge 4, a water pump 5, a second pressure gauge 6, a regulating valve 7, a third pressure gauge 8, and a flow meter 9.

[0021] Preferably, the piping assembly 3 includes a manifold 10, a water pump 11, and a return pipe 12. The input end of the manifold 10 is connected to the output ends of several indoor air conditioning units 2, the output end of the manifold 10 is connected to the input end of the water pump 11, the output end of the water pump 11 is connected to the input end of the return pipe 12, and the output end of the return pipe 12 is connected to the air conditioning main unit 1. This structural design facilitates connection, installation, and use. In practice, other structural shapes of the piping assembly 3 can also be considered depending on the specific circumstances.

[0022] Preferably, the pump pipe 11 is connected to the manifold 10 and return pipe 12 on both sides via flanges for a secure sealing connection. This structural design facilitates the installation and disassembly of the pump pipe 11, which is connected to the manifold 10 and return pipe 12 via flanges. However, other installation structures for the pump pipe 11, manifold 10, and return pipe 12 can also be considered depending on the specific circumstances.

[0023] Preferably, the first pressure gauge 4 is installed on the manifold 10, the water pump 5 is installed on the water pump 11, and the second pressure gauge 6, regulating valve 7, third pressure gauge 8, and flow meter 9 are installed sequentially from left to right on the return duct 12. This structural design facilitates installation, testing, and use. In practice, other layout and installation structures for the first pressure gauge 4, water pump 5, second pressure gauge 6, regulating valve 7, third pressure gauge 8, and flow meter 9 can also be considered depending on the specific circumstances.

[0024] Preferably, the first pressure gauge 4, the second pressure gauge 6 and the third pressure gauge 8 are of the same size and are high-precision pressure gauges. Such a design is convenient for purchase and maintenance. In fact, other structural shapes of pressure gauges can also be considered according to specific circumstances.

[0025] Preferably, the regulating valve 7 is a manual regulating valve. Such a design allows manual adjustment of the regulating valve 7. In fact, other structural shapes of regulating valves can also be considered according to specific circumstances.

[0026] Preferably, the flow meter 9 is a high-precision digital flow meter. Such a design allows the flow meter 9 to display the detected values, making it easier to view the values. In fact, other structural shapes of flow meters can also be considered according to specific circumstances.

[0027] Preferably, the first temperature sensor 13 is installed at the input end of the air conditioner host 1, and the second temperature sensor 14 is installed at the output end of the air conditioner host 1. Such a design allows the first temperature sensor 13 and the second temperature sensor 14 to detect the water temperature before and after the air conditioner host 1 and display the detected values on the air conditioner host 1, making it easier for the operator to view. In fact, other water temperature detection structural shapes of air conditioners can also be considered according to specific circumstances.

[0028] In this embodiment, in extreme weather such as the coldest or hottest, all air conditioning indoor unit 2 is turned on, so that the air conditioning host 1 reaches the maximum load, while the water flow in the pipeline assembly 3 reaches the maximum value, the inlet water temperature and outlet water temperature viewed on the air conditioning host 1 by the first temperature sensor 13 and the second temperature sensor 14, if the temperature difference reaches 5C°, the regulating valve 7 does not need to be adjusted, if the temperature difference does not reach 5C°, the size of the regulating valve 7 is adjusted, so that the difference between the inlet water temperature and the outlet water temperature reaches 5C°, the flow value in the pipeline assembly 3 is measured by the flow meter 9, and the value is stable without fluctuation, and the flow value of the water pump 5 actually required is recorded, that is, Q, the actual head value required by the water pump 5 is read, the values on the first pressure gauge 4, the second pressure gauge 6 and the third pressure gauge 8 are read, and the value obtained by subtracting the value of the first pressure gauge 4 from the value of the second pressure gauge 6 is the actual boosting capacity of the water pump 5, and after the regulating valve 7 is adjusted, there will be resistance, and the value obtained by subtracting the value of the third pressure gauge 8 from the value of the second pressure gauge 6 is the resistance value, finally, after the flow and head parameters are measured, the corresponding water pump 5 is selected according to the parameters, the water pump pipeline 11 is detached from the pipeline assembly 3, the original water pump 5 on the water pump pipeline 11 is removed, and the water pump 5 corresponding to the parameters is installed on the water pump pipeline 11, and finally the water pump pipeline 11 is reinstalled between the flow pipeline 10 and the return pipeline 12, after replacing the water pump 5, the regulating valve 7 is opened to the maximum, so that the resistance value of the second pressure gauge 6 minus the third pressure gauge 8 can be ignored, so that the air conditioning host 1 can be effectively reduced in power consumption under normal operation, and the system can meet the normal operation.

[0029] Real case: a system has been analyzed and transformed. The main heat of the heating and air conditioning system is 1025kW, the original design uses a water pump (flow: 187m 3 / h; head 36m, power: 30kW), the on-site use of the technology measures and calculates the water pump parameters (flow: 160m 3 / h; head 9m, power: 7.5kW), after replacing the water pump, the air conditioning system has been running normally for two months, and the water pump consumes less than 1 / 3 of the original water pump power per hour, which reduces 22kW of power consumption per hour, and the air conditioning system runs 10 hours a day, which can save 220 degrees of electricity per day.

[0030] The above examples only illustrate the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above examples without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application shall be covered by the claims of the present application.

Claims

1. A measuring device for water pump parameters of an air conditioning water system, characterized by: The application relates to an air conditioner, which comprises an air conditioner main machine (1), the output end of the air conditioner main machine (1) is connected with a plurality of air conditioner indoor machines (2), the output end of the air conditioner indoor machines (2) is connected with a pipeline assembly (3), the other side of the pipeline assembly (3) is installed on the air conditioner main machine (1), the pipeline assembly (3) is provided with a first pressure gauge (4), a water pump (5), a second pressure gauge (6), an adjusting valve (7), a third pressure gauge (8) and a flowmeter (9).

2. A device for measuring parameters of a water pump of an air conditioning water system according to claim 1, characterized in that: The pipeline assembly (3) comprises a converging pipeline (10), a water pump pipeline (11) and a backflow pipeline (12), the input end of the converging pipeline (10) is connected with the output end of the air conditioner indoor machines (2), the output end of the converging pipeline (10) is connected with the input end of the water pump pipeline (11), the output end of the water pump pipeline (11) is connected with the input end of the backflow pipeline (12), and the output end of the backflow pipeline (12) is connected with the air conditioner main machine (1).

3. A device for measuring parameters of a water pump of an air conditioning water system according to claim 2, characterized in that: The two sides of the water pump pipeline (11) are connected with the converging pipeline (10) and the backflow pipeline (12) through flange locking and sealing.

4. A device for measuring parameters of a water pump of an air conditioning water system according to claim 3, characterized in that: The first pressure gauge (4) is installed on the converging pipeline (10), the water pump (5) is installed on the water pump pipeline (11), and the second pressure gauge (6), the adjusting valve (7), the third pressure gauge (8) and the flowmeter (9) are sequentially installed on the backflow pipeline (12) from left to right.

5. A device for measuring parameters of a water pump of an air conditioning water system according to claim 4, characterized in that: The first pressure gauge (4), the second pressure gauge (6) and the third pressure gauge (8) have the same size structure and are high-precision pressure gauges.

6. A device for measuring parameters of a water pump of an air conditioning water system according to claim 5, characterized in that: The adjusting valve (7) is a hand-operated adjusting valve.

7. A device for measuring parameters of a water pump of an air conditioning water system according to claim 6, characterized in that: The flowmeter (9) is a high-precision digital flowmeter.

8. A device for measuring parameters of a water pump of an air conditioning water system according to claim 7, characterized in that: A first temperature sensor (13) is installed at the input end of the air conditioner main machine (1), and a second temperature sensor (14) is installed at the output end of the air conditioner main machine (1).

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