Air conditioner hydraulic balance detection device and central air conditioner

Abstract

The utility model relates to an air conditioner hydraulic balance detection device and a central air conditioner, and relates to the technical field of air conditioner pipeline detection. The detection device provided by the utility model comprises a processing terminal; the first pipeline is used for being communicated with an air conditioner pipeline, the first pipeline is provided with a temperature transmitter, a pressure meter and a flow meter, the temperature transmitter, the pressure meter and the flow meter are all in communication connection with the processing terminal, and the processing terminal can calculate a hydraulic balance result based on measured data; and the indicating equipment is used for informing a user of a hydraulic balance result and is in communication connection with the processing terminal. The water temperature, the water pressure and the flow can be measured by installing the detection device once, the measurement instrument does not need to be disassembled and assembled for many times, the installation time of the measurement device is short, and the influence on normal use of the central air conditioner is reduced. And the current hydraulic balance result of hydraulic balance debugging personnel can be directly indicated, the hydraulic balance adjusting efficiency is improved, and the hydraulic balance adjusting time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning pipeline detection, in particular to a detection device for air-conditioning hydraulic balance and a central air-conditioning. Background Art

[0002] In order to achieve HVAC work in large commercial complexes, factories, hotels, office buildings and other buildings, more and more water-cooled central air-conditioning systems are used. However, the pipes of central air-conditioning are long and complex, and the air-conditioning pipes of central air-conditioning generally have hydraulic imbalance problems. This often causes the water flow at the end of the air-conditioning pipe to be inconsistent with the designed flow, resulting in uneven heating and cooling in various air-conditioning areas.

[0003] At present, in order to comprehensively measure the hydraulic balance of air-conditioning pipes, it is necessary to install multiple measuring instruments such as flow meters, thermometers, pressure gauges, etc. on the pipes to obtain the actual fluid information of the air-conditioning pipes.

[0004] During the hydraulic balance process, the measuring instruments need to be disassembled and assembled many times. After the flow rate, flow velocity, temperature and pressure are measured, the hydraulic balance is calculated. Multiple disassembly and assembly are time-consuming and labor-intensive, and the air conditioning system needs to be shut down for a long time to meet the disassembly and assembly requirements. This affects the normal use of the central air conditioner. Utility Model Content

[0005] The utility model provides a detection device for hydraulic balance of air conditioner and central air conditioner, which can quickly complete the measurement of hydraulic balance and reduce the influence on the normal use of air conditioner.

[0006] In the first aspect, the utility model provides a detection device, including: a processing terminal; a first pipeline for communicating with an air-conditioning pipeline, a temperature transmitter, a pressure gauge and a flow meter are installed on the first pipeline, the temperature transmitter, the pressure gauge and the flow meter are all communicatively connected to the processing terminal, and the processing terminal can calculate a hydraulic balance result based on the measurement data; and an indicating device for informing users of the hydraulic balance result, the indicating device is communicatively connected to the processing terminal.

[0007] In one embodiment, the processing terminal includes a query unit and an operation unit; the detection device also includes an input device for a user to input model parameters of the air conditioner, the input device is communicatively connected to the query unit, the query unit is used to query and obtain fluid preset information corresponding to the model parameters based on the stored air conditioning parameter data, the operation unit is used to analyze and obtain a hydraulic balance result based on the measurement data and the fluid preset information, and the operation unit is also used to send the hydraulic balance result to the indication device.

[0008] In one embodiment, the input device includes a plurality of input keys.

[0009] In one embodiment, it also includes a protective box; the first pipeline portion is accommodated in the protective box, and both ends of the first pipeline extend out of the protective box and are connected to the air-conditioning pipeline; the temperature transmitter, pressure gauge, flow meter and processing terminal are all located in the protective box; the indicating device is arranged on the outer surface of the protective box.

[0010] In one embodiment, the processing terminal further includes a rechargeable battery capable of powering the temperature transmitter, the pressure gauge, the flow meter, and the indicating device.

[0011] In one embodiment, the indicating device includes a first indicator light and a second indicator light. The processing terminal controls the first indicator light to light up when the hydraulic balance result is qualified, and controls the second indicator light to light up when the hydraulic balance result is unqualified.

[0012] In one embodiment, the indicating device further comprises a display screen, and the display screen is used to display water temperature, water pressure and flow rate.

[0013] In one embodiment, a check valve is provided on the first pipeline, and the check valve is located on the water inlet side of the first pipeline. The temperature transmitter, the pressure gauge and the flow meter are all located on the side of the check valve away from the water inlet.

[0014] In one embodiment, pipe joints are provided at both ends of the first pipe, and the first pipe is connected to the air-conditioning pipe through the pipe joints. The pipe joints are sleeve structures with internal threads.

[0015] In a second aspect, the utility model further provides a central air conditioner, which comprises: a plurality of air conditioning pipes; the above-mentioned detection device, wherein a first pipe of the detection device is connected to the air conditioning pipe.

[0016] Compared with the prior art, the utility model has the advantage that, when in use, by connecting the first pipe with the air conditioning pipe, the temperature transmitter installed on the first pipe can be used to measure the water temperature of the air conditioning pipe, the pressure gauge can be used to measure the water pressure of the air conditioning pipe, and the flow meter can be used to measure the flow of the air conditioning pipe. The measurement of water temperature, water pressure and flow can be completed in one installation, and there is no need to disassemble and assemble the measuring instrument many times. The installation time of the measuring device is short, which reduces the impact on the normal use of the central air conditioner.

[0017] The hydraulic balance result can be automatically calculated through the processing terminal, and the calculated hydraulic balance result can be displayed with the help of the indicating device. This saves the time of on-site personnel calculating the hydraulic balance result, and can directly guide the hydraulic balance adjustment on site, improve the adjustment efficiency of the hydraulic balance, and shorten the time of hydraulic balance adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the internal structure of the detection device in the embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the external structure of the detection device in the embodiment of the utility model.

[0021] Reference numerals:

[0022] 1. Processing terminal;

[0023] 2. The first pipeline;

[0024] 3. Measuring equipment; 31. Temperature transmitter; 32. Pressure gauge; 33. Flow meter;

[0025] 4. Input device; 41. Input key;

[0026] 5. indicating device; 51. first indicating light; 52. second indicating light; 53. display screen;

[0027] 6. Protect the box;

[0028] 7. Check valve;

[0029] 8. Pipe joints. DETAILED DESCRIPTION

[0030] The utility model will be further described below in conjunction with the accompanying drawings.

[0031] like Figure 1 as well as Figure 2 As shown, in the first aspect, the utility model provides a detection device for hydraulic balance of air conditioner, which comprises: a processing terminal 1, a first pipeline 2, and an indicating device 5. Among them, a measuring device 3 is installed on the first pipeline 2, and the measuring device 3 comprises a temperature transmitter 31, a pressure gauge 32 and a flow meter 33.

[0032] When in use, the first pipe 2 is connected to the air-conditioning pipe. The water temperature of the air-conditioning pipe can be measured by the temperature transmitter 31 on the first pipe 2, the water pressure of the air-conditioning pipe can be measured by the pressure gauge 32 on the first pipe 2, and the flow rate of the air-conditioning pipe can be measured by the flow meter 33 on the first pipe 2.

[0033] By connecting the temperature transmitter 31, the pressure gauge 32 and the flow meter 33 to the processing terminal 1, the measured water temperature, water pressure and flow rate can be transmitted to the processing terminal 1. It is only necessary to connect the air conditioning pipeline to the first pipeline 2 to achieve the measurement of multiple parameters. Compared with the prior art of disassembling and assembling different measuring devices on the air conditioning pipeline many times, the number of times of disassembling and assembling measuring devices is reduced. Thereby, the time of disassembling and assembling equipment is shortened, the downtime of air conditioning is shortened, the energy waste caused by disassembling and assembling equipment is reduced, and the cost of hydraulic balance measurement is reduced. Each measurement can bring huge economic benefits.

[0034] Since the hydraulic balance result is calculated by the processing terminal 1, it replaces the manual calculation of the hydraulic balance result. On-site users do not have to calculate manually, which reduces the difficulty of hydraulic balance measurement. The hydraulic balance result is transmitted to the user through the indicating device 5, and the current hydraulic balance result can be calculated at any time. It is convenient for the adjustment personnel to confirm the adjusted hydraulic balance result, and the efficiency of hydraulic balance adjustment when hydraulic imbalance occurs is improved.

[0035] In this embodiment, the processing terminal 1 can be a microcomputer or an integrated chip. It has a data processing function, and can obtain the hydraulic balance result of the air conditioning pipeline by comparing the measured water temperature, water pressure and flow rate with the expected water temperature, water pressure and flow rate. The specific calculation method of the hydraulic balance belongs to the conventional method, which will not be described in detail here.

[0036] In this embodiment, the indicating device 5 directly displays the hydraulic balance result to inform the user. In other embodiments, the indicating device 5 may also use voice broadcast to inform the user, or combine voice broadcast and display to inform the user. As long as the function of informing the user of the hydraulic balance result is met, it will be fine.

[0037] In some embodiments, the processing terminal 1 includes a query unit and a computing unit, wherein the query unit and the computing unit can be made into independent chip modules respectively, or can be integrated into the same chip circuit.

[0038] like Figure 2 As shown, the detection device also includes an input device 4, and the user can input the model parameters of the air conditioner through the input device 4. The query unit stores air conditioning parameter data of various air conditioner models. The query module can match the fluid preset information corresponding to the model parameters input by the input device 4.

[0039] The operation unit obtains a hydraulic balance result based on the measurement data and the preset information of the fluid, and sends the hydraulic balance result to the indicating device 5 .

[0040] Compared with manually querying the preset fluid information of the air conditioner model, querying by entering the model parameters is easier and more accurate. Avoid affecting the accuracy of the hydraulic balance results due to querying incorrect data, thereby affecting the adjustment of the hydraulic balance.

[0041] like Figure 2 As shown, in some embodiments, the input device 4 includes a plurality of input buttons 41. In this embodiment, the input device 4 includes five input buttons 41, namely, "Set", "▽", "△", "Confirm", and "Cancel". The indicating device 5 includes a display screen 53, through which the model parameters of the air conditioner can be selected, and the model parameters are transmitted to the query unit of the processing terminal 1.

[0042] In other embodiments, the input device 4 may also be configured as a touch screen structure or a voice input device 4 .

[0043] like Figure 1 as well as Figure 2 As shown, in some embodiments, the detection device further includes a protection box 6, the first pipe 2 is partially accommodated in the protection box 6, and both ends of the first pipe 2 extend out of the protection box 6 and communicate with the air conditioning pipe. The temperature transmitter 31, the pressure gauge 32, the flow meter 33 and the processing terminal 1 are all located in the protection box 6.

[0044] The protective box 6 can keep the processing terminal 1, the temperature transmitter 31, the pressure gauge 32 and the flow meter 33 in a safe box to avoid malfunction of the electronic equipment. Figure 1 as well as Figure 2 As shown, the protection box 6 is provided with two through holes whose inner diameters are slightly larger than the diameter of the first pipeline 2 , so that the first and tail ends of the first pipeline 2 extend out of the protection box 6 .

[0045] like Figure 2 As shown, in some embodiments, the indicator device 5 is disposed on the outer surface of the protective box 6. In this embodiment, the indicator device 5 includes a display screen 53 and an indicator light, which are disposed on the outer surface of the protective box 6 so that the user can observe the indicator device 5.

[0046] In some embodiments, the processing terminal 1 further comprises a rechargeable battery, which can supply power to the temperature transmitter 31, the pressure gauge 32, the flow meter 33 and the indicating device 5. Figure 1 It can be seen that the processing terminal 1 is connected with a connection line extending to the outside of the protection box 6, through which the processing terminal 1 can be connected to the indicating device 5 on the outer surface of the protection box 6 for communication, and the connection line can be used to charge the rechargeable battery to maintain the power supply of each device in the detection device.

[0047] like Figure 2As shown, in some embodiments, the indicating device 5 includes a first indicator light 51 and a second indicator light 52. The processing terminal 1 controls the first indicator light 51 to light up when the hydraulic balance result is qualified, and the processing terminal 1 controls the second indicator light 52 to light up when the hydraulic balance result is unqualified.

[0048] In other words, the user is instructed by means of indicator lights, the result is clear and the energy consumption is low.

[0049] like Figure 2 As shown, in some embodiments, the indicating device 5 further includes a display screen 53, and the display screen 53 is used to display water temperature, water pressure and flow rate. The water temperature data is measured by the temperature transmitter 31, the water pressure data is measured by the pressure gauge 32, and the flow rate data is calculated by the flow meter 33. In other words, the indicating device 5 not only displays the hydraulic balance result through the indicator light, but also displays the measured water temperature, water pressure and flow rate data through the display screen 53. In some embodiments, the processing terminal 1 can also calculate the flow rate data of the fluid based on the flow rate data passing through per unit time, and display the flow rate data of the fluid through the display screen 53.

[0050] In this embodiment, the temperature transmitter 31 is an integrated plug-in temperature transmitter 31, the pressure gauge 32 is a DC / AC digital pressure gauge with a conversion connector, and the flow meter 33 is a DC / AC digital pipeline turbine flow meter 33 with a conversion connector. The temperature transmitter 31 can directly convert the measured water temperature value into an electrical signal with water temperature numerical information, so that the processing terminal 1 can obtain the water temperature value. Similarly, the pressure gauge 32 can convert the measured water pressure value into an electrical signal with water pressure numerical information, so that the processing terminal 1 can obtain the water pressure value. Similarly, the flow meter 33 can convert the measured flow value into an electrical signal with flow numerical information, so that the processing terminal 1 can obtain the flow value.

[0051] In some embodiments, a check valve 7 is provided on the first pipe 2, and the check valve 7 is located on the water inlet side of the first pipe 2. The temperature transmitter 31, the pressure gauge 32, and the flow meter 33 are all located on the side of the check valve 7 away from the water inlet. By providing the check valve 7, the flow direction of the fluid in the first pipe 2 is always from the water inlet to the water outlet, so as to avoid backflow affecting the measurement of relevant parameters.

[0052] In some embodiments, the first pipe 2 is provided with pipe joints 8 at both ends, and the first pipe 2 is connected to the air conditioning pipe through the pipe joint 8. The pipe joint 8 is a sleeve structure with an internal thread structure. In other words, the first pipe 2 is connected to the air conditioning pipe through the pipe joint 8 with an internal thread. The pipe connection can be tightly connected through the threaded connection.

[0053] In some embodiments, the pipe joint 8 is a galvanized sleeve structure, which has better corrosion resistance than pipes made of ordinary materials and has a longer service life.

[0054] In the second aspect, the present application also provides a central air conditioner, which includes a plurality of air conditioning pipes and the above-mentioned detection device, wherein the first pipe 2 of the detection device is connected to the air conditioning pipe. Specifically, the end of the fan coil of the air conditioning pipe can be threadedly connected with a spliced ​​pipe, wherein the size of a section of the spliced ​​pipe is the same as that of the first pipe 2. When it is necessary to detect the hydraulic balance, the spliced ​​pipe of the same size as the first pipe 2 can be removed and replaced with the first pipe 2. The detection device is connected to the air conditioning pipe.

[0055] By changing the installation position of the first pipeline 2, the measurement of hydraulic balance in different areas can be achieved.

[0056] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A detection device for air conditioning hydraulic balance, characterized in that: It includes: Processing terminal; a first pipeline, used to communicate with the air conditioning pipeline, on which a temperature transmitter, a pressure gauge and a flow meter are installed, the temperature transmitter, the pressure gauge and the flow meter are all communicatively connected to the processing terminal, and the processing terminal can calculate a hydraulic balance result based on the measurement data; as well as An indicating device for informing a user of a hydraulic balance result, wherein the indicating device is communicatively connected to the processing terminal.

2. The detection device according to claim 1, characterized in that: The processing terminal includes a query unit and a computing unit; The detection device also includes an input device for a user to input model parameters of the air conditioner, the input device is communicatively connected to the query unit, the query unit is used to query and obtain fluid preset information corresponding to the model parameters based on the stored air conditioning parameter data, the calculation unit is used to obtain the hydraulic balance result based on the measurement data and the fluid preset information, and the calculation unit is also used to send the hydraulic balance result to the indication device.

3. The detection device according to claim 2, characterized in that: The input device includes a plurality of input keys.

4. The detection device according to claim 1, characterized in that ； Also includes a protective box; The first pipe portion is accommodated in the protection box, and both ends of the first pipe extend out of the protection box to communicate with the air conditioning pipe; The temperature transmitter, pressure gauge, flow meter and processing terminal are all located in the protection box; The indicating device is arranged on the outer surface of the protection box.

5. The detection device according to claim 1, characterized in that: The processing terminal also includes a rechargeable battery, which can power the temperature transmitter, the pressure gauge, the flow meter and the indicating device.

6. The detection device according to claim 1, characterized in that: The indicating device includes a first indicator light and a second indicator light. The processing terminal controls the first indicator light to light up when the hydraulic balance result is qualified, and controls the second indicator light to light up when the hydraulic balance result is unqualified.

7. The detection device according to claim 6, characterized in that: The indicating device also includes a display screen, which is used to display water temperature, water pressure and flow rate.

8. The detection device according to claim 1, characterized in that: A check valve is provided on the first pipeline, and the check valve is located at the water inlet side of the first pipeline. The temperature transmitter, the pressure gauge and the flow meter are all located at the side of the check valve away from the water inlet.

9. The detection device according to claim 1, characterized in that: Pipe joints are provided at both ends of the first pipeline, and the first pipeline is connected to the air-conditioning pipeline through the pipe joints. The pipe joints are sleeve structures with internal threads.

10. A central air conditioner, characterized in that: It includes: Several air conditioning ducts; The detection device according to any one of claims 1 to 9, wherein the first pipe of the detection device is connected to the air conditioning pipe.

Images