Device for measuring rated water flow resistance of light and thin hot water radiation heating plate

Abstract

The utility model discloses a rated water flow resistance measuring device for a light and thin hot water radiation heating plate, and relates to the technical field of heating plates. The rated water flow resistance measuring device for the light and thin hot water radiation heating plate comprises a shell, and a data display screen, a main switch, a temperature setting controller, a flow setting controller, a test switch and a test display screen are fixedly installed on the front surface of the shell. Setting water temperature and water flow standard flow, starting a water servo temperature control system and an electric heater to enable the water temperature to meet the standard requirement, starting an electric flow control system, enabling water to flow in from the direction of an inlet, stabilizing for at least 10 minutes, and enabling a pressure difference transmitter (a pressure measuring point) to be close to a water inlet and a water outlet of the to-be-tested hot water radiation heating plate under a stable test condition; the water pressure drop between the inlet and the outlet, namely the rated water flow resistance, is tested, and the fluid flowmeter is installed at the water outlet to test the water flow in the water supply pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of heating panels, in particular to a device for measuring rated water flow resistance of a thin and light hot water radiation heating panel. Background Art

[0002] Building energy should be developed towards highly adaptable, easy to purify, and low-pollution energy. The purpose of building energy conservation is to reduce building energy consumption while enhancing the comfort of the building and truly improving people's living and working standards. As a comfortable and energy-saving heating method, hot water radiant heating panel technology is increasingly being used.

[0003] In order to ensure the balance between the heating effect and energy consumption of the hot water radiant heating panel, the water flow resistance of the heating panel needs to be considered. The water flow resistance of the heating panel will affect the flow rate and flow of the water. Therefore, it is particularly important to detect the rated water flow resistance of the hot water radiant heating panel.

[0004] However, after the production of the heating panels currently on the market is completed, the water flow resistance of the heating panels cannot be measured, so the flow velocity and flow rate of the water flow cannot be determined, and it is also impossible to improve the operation after testing, which reduces the subsequent production efficiency and is inconvenient for subsequent staff to use. Therefore, we proposed a lightweight hot water radiant heating panel rated water flow resistance measurement device to solve the above-mentioned problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a device for measuring the rated water flow resistance of a thin and light hot water radiant heating panel, which solves the problem that it is inconvenient to measure the rated water flow resistance of the heating panel, thereby affecting subsequent use.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for measuring the rated water flow resistance of a thin and light hot water radiant heating panel, comprising a shell, a data display screen, a main switch, a temperature setting controller, a flow setting controller, a test switch and a test display screen are fixedly installed on the front surface of the shell.

[0007] A cavity is provided inside the shell, and an electric flow control system and a water servo temperature control system are fixedly installed on the inner bottom wall of the cavity. A water inlet pipe is connected to the back of the shell, and one end of the water inlet pipe located inside the shell is connected to an electric heater, one end of the electric heater is connected to a water supply pipe, one end of the water supply pipe is connected to a sample test bench, and the surface of the water supply pipe is connected to a water temperature sensor and a water inlet pressure detector.

[0008] One end of the sample test bench is connected to a return pipe, one end of the return pipe is connected to a small circulating water pump, the outlet of the small circulating water pump is connected to one side of the electric heater through the circulating pipe, the surface of the return pipe is connected to an outlet pressure detector and a liquid flow meter, one end of the return pipe located inside the sample test bench is connected to a differential pressure transmitter, and a screw is inserted on one side of the sample test bench.

[0009] Preferably, an inspection door is hingedly connected to the front surface of the shell below the test display screen through hinges, and a handle is fixedly mounted on the front surface of the inspection door, and the surface of the handle is provided with anti-slip grooves.

[0010] Preferably, the surface of the water return pipe is connected to a water valve, and the water valve is located between the liquid flow meter and the small circulating water pump.

[0011] Preferably, one end of the water inlet pipe located outside the shell is connected to a water inlet valve.

[0012] Preferably, a mesh plate and a heating net are fixedly installed inside the electric heater, a water supply pipe is located on one side of the heating net, and one end of the circulation pipe passes through the heating net and extends between the mesh plate and the heating net.

[0013] Preferably, square tubes are fixedly mounted at the four corners of the bottom of the shell, a support rod is inserted into the bottom of the square tube, and a universal wheel is rotatably connected to the bottom of the support rod via a bearing.

[0014] Preferably, a buffer spring is fixedly installed on the inner top wall of the square tube, the bottom of the buffer spring is fixedly connected to one side of the support rod located inside the square tube, a sliding bar is fixedly installed on the inner wall of the square tube, a sliding groove is opened on the top of the support rod for the sliding bar to pass through, and the inner wall of the sliding groove is slidably connected to the surface of the sliding bar.

[0015] The utility model provides a device for measuring the rated water flow resistance of a thin and light hot water radiation heating panel. Compared with the prior art, it has the following beneficial effects:

[0016] The device for measuring the rated water flow resistance of a thin and light hot water radiant heating panel is implemented by installing the assembled hot water radiant heating panel with a branch manifold on a sample test bench, setting the water temperature and the standard water flow in the control system, starting the water servo temperature control system, and using the electric heater to make the water temperature reach the standard requirement. Then, the electric flow control system is started, and water flows in from the inlet direction and remains stable for at least 10 minutes. Under stable test conditions, the differential pressure transmitter (pressure measuring point) should be located close to the water inlet and outlet of the hot water radiant heating panel to be tested, and the water pressure drop between the inlet and outlet, i.e. the rated water flow resistance, is tested. A liquid flow meter is installed at the outlet to test the water flow in the water supply pipe, and the water flows into a small circulating water pump through a return pipe for circulation.

[0017] At the same time, the shell applies pressure to the square tube, the universal wheel supports the support rod, and then the buffer spring on the top of the support rod buffers it, so as to facilitate the buffering protection operation of the device during subsequent use, avoid instability of the device during subsequent use, and improve the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0020] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the square tube of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the electric heater of the utility model.

[0022] In the figure: 1. Shell; 2. Data display screen; 3. Main switch; 4. Temperature setting controller; 5. Flow setting controller; 6. Test display screen; 7. Electric flow control system; 8. Water servo temperature control system; 9. Water inlet pipe; 10. Electric heater; 11. Water supply pipe; 12. Sample test bench; 13. Water temperature sensor; 14. Water inlet pressure detector; 15. Return pipe; 16. Small circulating water pump; 17. Circulating pipe; 18. Water outlet pressure detector; 19. Liquid flow meter; 20. Inspection door; 21. Water valve; 22. Mesh plate; 23. Heating net; 24. Square tube; 25. Support rod; 26. Universal wheel; 27. Buffer spring; 28. Sliding bar; 29. ​​Test switch; 30. Water inlet valve; 31. Pressure differential transmitter; 32. Screw. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a device for measuring the rated water flow resistance of a thin and light hot water radiant heating panel, comprising a shell 1, on the front surface of which a data display screen 2, a main switch 3, a temperature setting controller 4, a flow setting controller 5, a test switch 29 and a test display screen 6 are fixedly mounted.

[0025] A cavity is opened inside the shell 1, and an electric flow control system 7 and a water servo temperature control system 8 are fixedly installed on the inner bottom wall of the cavity. The back of the shell 1 is connected to a water inlet pipe 9, and one end of the water inlet pipe 9 located inside the shell 1 is connected to an electric heater 10, and one end of the electric heater 10 is connected to a water supply pipe 11, and one end of the water supply pipe 11 is connected to a sample test bench 12, and the surface of the water supply pipe 11 is connected to a water temperature sensor 13 and a water inlet pressure detector 14.

[0026] One end of the sample test bench 12 is connected to a return pipe 15, and one end of the return pipe 15 is connected to a small circulating water pump 16. The water outlet of the small circulating water pump 16 is connected to one side of the electric heater 10 through a circulating pipe 17. The surface of the return pipe 15 is connected to a water outlet pressure detector 18 and a liquid flow meter 19. One end of the return pipe 15 located inside the sample test bench 12 is connected to a differential pressure transmitter 31, and a screw 32 is inserted on one side of the sample test bench 12.

[0027] Install the assembled hot water radiant heating panel with branch manifold on the sample test bench 12, set the water temperature and standard water flow in the control system, start the water servo temperature control system 8, the electric heater 10 to make the water temperature reach the standard requirement, and then start the electric flow control system 7. Water flows in from the inlet direction and stabilizes for at least 10 minutes. Under stable test conditions, the pressure measuring point of the differential pressure transmitter 31 should be close to the water inlet and outlet of the hot water radiant heating panel to be tested to test the water pressure drop between the inlet and outlet, that is, the rated water flow resistance; the liquid flow meter 19 is installed at the outlet to test the water flow in the water supply pipe 11, and the water flows into the small circulating water pump 16 through the return pipe 15 for circulation.

[0028] Preferably, an inspection door 20 is hingedly connected to the front surface of the housing 1 below the test display screen 6 through hinges, and a handle is fixedly mounted on the front surface of the inspection door 20, and the surface of the handle is provided with anti-slip grooves.

[0029] The inspection door 20 is provided to facilitate the inspection during use, thereby facilitating the subsequent inspection operation during use, thereby also facilitating the subsequent normal use.

[0030] Preferably, a water valve 21 is connected to the surface of the water return pipe 15 , and the water valve 21 is located between the liquid flow meter 19 and the small circulating water pump 16 .

[0031] The water valve 21 is provided to facilitate the control of water flow during use, thereby facilitating subsequent use.

[0032] Preferably, one end of the water inlet pipe 9 located outside the shell 1 is connected to a water inlet valve 30 .

[0033] The provision of the water inlet valve 30 facilitates the control of the water flow at the water inlet pipe 9 .

[0034] Preferably, a mesh plate 22 and a heating network 23 are fixedly installed inside the electric heater 10 , the water supply pipe 11 is located on one side of the heating network 23 , and one end of the circulation pipe 17 passes through the heating network 23 and extends between the mesh plate 22 and the heating network 23 .

[0035] The mesh plate 22 is provided to facilitate the filtering operation of water during use, thereby maintaining the cleanliness of the water subsequently entering the heating plate.

[0036] Preferably, a square tube 24 is fixedly mounted at the four corners of the bottom of the housing 1, a support rod 25 is inserted into the bottom of the square tube 24, and a universal wheel 26 is rotatably connected to the bottom of the support rod 25 via a bearing.

[0037] Preferably, a buffer spring 27 is fixedly installed on the inner top wall of the square tube 24, and the bottom of the buffer spring 27 is fixedly connected to one side of the support rod 25 located inside the square tube 24. A sliding bar 28 is fixedly installed on the inner wall of the square tube 24, and a sliding groove is opened on the top of the support rod 25 for the sliding bar 28 to pass through, and the inner wall of the sliding groove is slidably connected to the surface of the sliding bar 28.

[0038] The shell 1 applies pressure to the square tube 24, the universal wheel 26 supports the support rod 25, and then the buffer spring 27 on the top of the support rod 25 performs a buffering operation on it, so as to facilitate the buffering protection operation of the device during subsequent use, avoid instability of the device during subsequent use, and improve the stability of the device.

[0039] During operation, the assembled hot water radiation heating panel with branch manifold is installed on the sample test bench 12, the water temperature and standard water flow are set in the control system, the water servo temperature control system 8 is started, the electric heater 10 makes the water temperature reach the standard requirement, and then the electric flow control system 7 is started, and water flows in from the inlet direction and stabilizes for at least 10 minutes. Under stable test conditions, the pressure measuring point of the differential pressure transmitter 31 should be close to the water inlet and outlet of the hot water radiation heating panel to be tested, and the water pressure drop between the inlet and outlet, that is, the rated water flow resistance, is tested; the liquid flow meter 19 is installed at the outlet position to test the water flow in the water supply pipe 11, and the water flows into the small circulating water pump 16 through the return pipe 15 for circulation, the shell 1 applies pressure to the square pipe 24, the universal wheel 26 supports the support rod 25, and then the buffer spring 27 on the top of the support rod 25 performs a buffering operation on it, so as to facilitate the buffering protection operation of the device during subsequent use, avoid instability of the device during subsequent use, and improve the stability of the device.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A device for measuring rated water flow resistance of a thin and light hot water radiant heating panel, comprising a housing (1), characterized in that: A data display screen (2), a main switch (3), a temperature setting controller (4), a flow setting controller (5), a test switch (29) and a test display screen (6) are fixedly mounted on the front surface of the housing (1); The shell (1) has a cavity formed inside, and an electric flow control system (7) and a water servo temperature control system (8) are fixedly mounted on the inner bottom wall of the cavity; the back of the shell (1) is connected to a water inlet pipe (9); one end of the water inlet pipe (9) located inside the shell (1) is connected to an electric heater (10); one end of the electric heater (10) is connected to a water supply pipe (11); one end of the water supply pipe (11) is connected to a sample test bench (12); and the surface of the water supply pipe (11) is connected to a water temperature sensor (13) and a water inlet pressure detector (14); One end of the sample test bench (12) is connected to a return pipe (15), one end of the return pipe (15) is connected to a small circulating water pump (16), the water outlet of the small circulating water pump (16) is connected to one side of the electric heater (10) through a circulating pipe (17), the surface of the return pipe (15) is connected to a water outlet pressure detector (18) and a liquid flow meter (19), one end of the return pipe (15) located inside the sample test bench (12) is connected to a differential pressure transmitter (31), and a screw (32) is inserted into one side of the sample test bench (12).

2. A device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 1, characterized in that: An inspection door (20) is hingedly connected to the front surface of the housing (1) and is located below the test display screen (6) via a hinge. A handle is fixedly mounted on the front surface of the inspection door (20), and the surface of the handle is provided with anti-slip grooves.

3. A device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 1, characterized in that: The surface of the water return pipe (15) is connected to a water valve (21), and the water valve (21) is located between the liquid flow meter (19) and the small circulating water pump (16).

4. The device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 1, characterized in that: One end of the water inlet pipe (9) located outside the housing (1) is connected to a water inlet valve (30).

5. The device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 1, characterized in that: A mesh plate (22) and a heating net (23) are fixedly installed inside the electric heater (10); the water supply pipe (11) is located on one side of the heating net (23); and one end of the circulation pipe (17) passes through the heating net (23) and extends between the mesh plate (22) and the heating net (23).

6. A device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 1, characterized in that: A square tube (24) is fixedly mounted at each of the four corners of the bottom of the housing (1), a support rod (25) is inserted into the bottom of the square tube (24), and a universal wheel (26) is rotatably connected to the bottom of the support rod (25) via a bearing.

7. A device for measuring rated water flow resistance of a thin and light hot water radiant heating panel according to claim 6, characterized in that: A buffer spring (27) is fixedly mounted on the inner top wall of the square tube (24); the bottom of the buffer spring (27) is fixedly connected to one side of the support rod (25) located inside the square tube (24); a sliding bar (28) is fixedly mounted on the inner wall of the square tube (24); a sliding groove for the sliding bar (28) to pass through is provided on the top of the support rod (25); and the inner wall of the sliding groove is slidably connected to the surface of the sliding bar (28).

Images