CN107091735B - Wall-mounted boiler waterway detection method and device - Google Patents
Wall-mounted boiler waterway detection method and device Download PDFInfo
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- CN107091735B CN107091735B CN201710347894.5A CN201710347894A CN107091735B CN 107091735 B CN107091735 B CN 107091735B CN 201710347894 A CN201710347894 A CN 201710347894A CN 107091735 B CN107091735 B CN 107091735B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a method and a device for detecting waterways of wall-mounted furnaces, which can be used for conveying waterways with specific pressure through an integrated waterway water inlet to be detected, plugging plugs on a heating water outlet or a heating water return water inlet and a heating water return outlet, communicating the water inlet with the heating water outlet or each heating water return opening by utilizing a three-way valve, and detecting flow values under corresponding states so as to rapidly detect and judge whether bypass and a tee are qualified or not, thereby enhancing product delivery quality control and solving the problems of overtemperature faults caused by early opening or non-opening of the bypass and circulating water strings caused by non-tight tee sealing in the market. The invention has simple structure and strong practicability, can ensure the qualification of the vulnerable part one-way valve and the three-way valve in the integrated waterway before delivery, improves the safety and the user experience of the wall-mounted boiler product, and effectively prevents the problems of non-failure overtemperature and heating water flowing.
Description
Technical Field
The invention relates to a gas heating water heater detection technology, in particular to a wall-mounted boiler water path detection method and device.
Background
The gas wall-hanging stove takes natural gas, artificial gas or liquefied gas as fuel, the fuel is output through a burner, after being burnt in a combustion chamber, heat is absorbed by a heat exchanger, and circulating water in a heating system is heated in a reciprocating way when passing through the heat exchanger, so that the heat is continuously output to a building, and a heat source is provided for the building. The general dual-purpose gas wall-mounted furnace has a heating function and a hot water function. The wall-mounted furnace can provide a heat source for the radiating fins and a heat source for the floor heating system. The wall-mounted stove is divided into a single floor heating type and a heating and bathing type, wherein the heating and bathing type can be divided into a sleeve-type wall-mounted stove and a plate-change type wall-mounted stove, and the plate-change type wall-mounted stove is favored by consumers because the plate-change type wall-mounted stove has the characteristics of better water supply comfort, difficult scaling, long service life, convenient maintenance and the like.
The integrated waterway of the plate-exchange type wall-mounted furnace comprises a water inlet a, a heating water outlet b, a heating water return inlet c and a heating water return outlet d, wherein the water inlet a is communicated with the heating water outlet b and the heating water return outlet d through a three-way valve e, the heating water outlet b is communicated with the heating water return outlet d through a bypass valve f, and when the waterway at the periphery of a heating system of the wall-mounted furnace is blocked, the wall-mounted furnace is prevented from dry burning in an internal circulation mode through the bypass valve f; when the heating bath is switched, the ejector rod type three-way valve e is required to be used for switching, and when in a heating mode, the heating water circulates outside the system, and the internal circulation waterway is closed; in the bath mode, the heating water circulates in the inner circulation and the outer circulation is closed.
The bypass valve is opened or not opened in advance, so that the whole machine can generate overtemperature fault; and the three-way valve is not tightly sealed in real time, so that the problems of external circulation and internal circulation water flowing can occur, and the performance of the whole machine is affected. Therefore, in the production link of the whole existing wall-mounted boiler, specific strict requirements are provided for each flow and working procedure for controlling the reject ratio. However, the method can only control theoretically, cannot truly control the quality of the product before delivery, and cannot ensure that the bypass valve and the three-way valve of vulnerable parts in the integrated waterway are qualified.
Disclosure of Invention
The invention aims to provide a waterway detection method and device for a wall-mounted furnace, which can rapidly detect whether bypass and tee joint are qualified or not and improve the output quality of the wall-mounted furnace.
The invention provides a wall-mounted boiler water path detection method, which comprises the following steps:
A. the method comprises the steps of formulating water pressure values at two sides of a sealing end of a three-way valve, action pressure of a bypass valve, full-opening pressure, maximum water leakage quantity of each action pressure and maximum water leakage quantity of each full-opening pressure according to a water pump lift;
B. the plate-taking and plate-changing integrated waterway part is provided with one piece, and the heating backwater water inlet c and the heating backwater water outlet d are blocked;
C. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating backwater water outlet d;
D. b, inputting water flow with specific pressure to the water inlet a according to the water pressure values at two sides of the sealing end of the three-way valve set in the step A, observing the heating water outlet b, and judging that the three-way valve is not tightly sealed and is required to be returned to a factory for reinstallation if the water flows out of the heating water outlet b; if the heating water outlet b does not flow out, judging that the tee joint is tightly sealed, and entering the next step;
E. plugging a heating water outlet b;
F. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating water outlet b;
G. b, inputting water flow with specific pressure into the water inlet a according to the action pressure of the bypass valve and the full-open pressure set in the step A, and reading the flow value at the water inlet a under each pressure;
H. and C, judging whether the bypass valve meets the standard requirement or not according to the parameters set in the step A.
The device for the wall-mounted boiler water path detection method comprises an integrated water path to be detected, wherein a water inlet a, a heating water outlet b, a heating water return inlet c and a heating water return outlet d are arranged on the integrated water path, the water inlet a is communicated with the heating water outlet b and the heating water return outlet d through a three-way valve, the heating water outlet b is communicated with the heating water return outlet d through a bypass valve, the water inlet a is communicated with an external water source through an electromagnetic flowmeter, a pressure gauge and a pressure regulating assembly which are sequentially arranged, and a plug is detachably and hermetically connected to the heating water outlet b, the heating water return inlet c and the heating water return outlet d respectively.
In order to enhance the degree of automation, the invention also comprises a control device for driving the three-way valve to move, wherein the control device comprises a controller module, a keyboard module, a display module and an execution module, the controller module is respectively connected with the keyboard module, the display module and the execution module, and the execution module is connected with a three-way motor for driving the three-way valve to move through connecting wires and is used for executing corresponding actions after a mode or a state is selected.
In order to perfect the detection environment, the invention also comprises an experiment bench for placing the pressure regulating assembly, the pressure gauge, the electromagnetic flowmeter and the integrated waterway, wherein a water tank for containing water flowing out from each water gap is arranged on the experiment bench below the integrated waterway.
In order to facilitate the double setting of the opening pressure and the full-opening pressure of the bypass valve, the pressure regulating assembly comprises a three-way switching valve and two automatic pressure regulating valves, wherein the three-way switching valve is respectively connected with an external water source and the two automatic pressure regulating valves, and the two automatic pressure regulating valves are connected with a pressure gauge.
The keyboard module comprises a state switching key and an automatic mode key, wherein the state switching key is used for manually switching a heating state and a bathing state, and the automatic mode key is used for starting and stopping an automatic mode.
The display module comprises three indicator lamps with different colors, and the indicator lamps respectively represent a heating state indicator lamp, a bath state indicator lamp and an automatic mode indicator lamp.
According to the invention, the water way with specific pressure is conveyed through the water inlet of the integrated water way to be detected, the heating water outlet or the heating water return inlet and plugs on the heating water return outlet are plugged, the water inlet is communicated with the heating water outlet or each heating water return outlet by utilizing the three-way valve, and whether the bypass and the tee are qualified or not is rapidly detected and judged by measuring the flow value under the corresponding state, so that the delivery quality control of products is enhanced, and the problems of overtemperature faults caused by early opening or non-opening of the bypass and circulating water strings caused by non-tight sealing of the tee in the market are solved. The invention has simple structure and strong practicability, can ensure the qualification of the vulnerable part one-way valve and the three-way valve in the integrated waterway before delivery, improves the safety and the user experience of the wall-mounted boiler product, and effectively prevents the problems of non-failure overtemperature and heating water flowing.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the control device of the present invention.
The labels shown in the figures and the corresponding component names are: 1. a pressure regulating assembly; 2. a pressure gauge; 3. an electromagnetic flowmeter; 4. an integrated waterway; 5. a control device; 6. an experiment bench; 7. a water tank; 11. a three-way switching valve; 12. automatic pressure regulating valve; 41. a three-way valve; 42. a bypass valve; 43. and (5) plugging.
Detailed Description
The invention relates to a wall-mounted boiler water path detection method, which comprises the following steps:
A. the plate-taking and plate-changing integrated waterway part is provided with one piece, and the heating backwater water inlet c and the heating backwater water outlet d are blocked;
B. the method comprises the steps of formulating water pressure values at two sides of a sealing end of a three-way valve, action pressure of a bypass valve, full-opening pressure, maximum water leakage quantity of each action pressure and maximum water leakage quantity of each full-opening pressure according to a water pump lift;
C. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating backwater water outlet d;
D. b, inputting water flow with specific pressure to the water inlet a according to the water pressure values at two sides of the sealing end of the three-way valve set in the step A, observing the heating water outlet b, and judging that the three-way valve is not tightly sealed and is required to be returned to a factory for reinstallation if the water flows out of the heating water outlet b; if the heating water outlet b does not flow out, judging that the tee joint is tightly sealed, and entering the next step;
E. plugging a heating water outlet b;
F. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating water outlet b;
G. b, inputting water flow with specific pressure into the water inlet a according to the action pressure of the bypass valve and the full-open pressure set in the step A, and reading the flow value at the water inlet a under each pressure;
H. and C, judging whether the bypass valve meets the standard requirement or not according to the parameters set in the step A.
As can be seen from fig. 1, the wall-mounted boiler water path detection device comprises a pressure regulating assembly 1, a pressure gauge 2, an electromagnetic flowmeter 3 and an integrated water path 4 to be detected, wherein the pressure regulating assembly 1 comprises a three-way switching valve 11 and two automatic pressure regulating valves 12, a water inlet a, a heating water outlet b, a heating water return inlet c and a heating water return outlet d are arranged on the integrated water path 4, the water inlet a is communicated with the heating water outlet b and the heating water return outlet d through a three-way valve 41, the heating water outlet b is communicated with the heating water return outlet d through a bypass valve 42, an external water source, the pressure gauge 2, the electromagnetic flowmeter 3 and the water inlet a are sequentially communicated through a water pipe and a quick-connection joint, the three-way switching valve 11 is respectively connected with the external water source and the two automatic pressure regulating valves 12, and plugs 43 are respectively detachably and hermetically connected with the heating water outlet b, the heating water return inlet c and the heating water return outlet d.
As can be seen from fig. 1 and 2, the present invention further comprises a control device 5, which comprises a controller module, a keyboard module, a display module and an execution module, wherein the controller module is respectively connected with the keyboard module, the display module and the execution module, the keyboard module comprises a state switching key and an automatic mode key, the state switching key is used for manually switching between a heating state and a bathing state, and the automatic mode key is used for starting and stopping an automatic mode; the display module comprises three indicator lamps with different colors, which respectively represent a heating state indicator lamp, a bath state indicator lamp and an automatic mode indicator lamp; the execution module is connected with a three-way motor for driving the three-way valve to move through a connecting wire and is used for executing corresponding actions after the mode or state is selected.
As can be seen from fig. 1, the invention further comprises a test bench 6 and a water tank 7, wherein the pressure regulating assembly 1, the pressure gauge 2, the electromagnetic flowmeter 3 and the integrated water channel 4 are sequentially arranged on the test bench 6, the water tank 7 is arranged on the test bench 6 below the integrated water channel 4, and water flowing out from each water gap of the integrated water channel 4 falls into the water tank 7 to be received and contained by the water tank 7.
The specific steps for detecting the water path of the wall-mounted boiler by using the device are as follows:
A. setting the water pressure at the two sides of the sealing end of the three-way valve to be 0.08MPa, and setting the serial water flow rate to be less than 5L/h; setting the action pressure of the pump lift of the 5m pump to be 0.035MPa and the full-open pressure to be 0.045 MPa; setting the action pressure of the pump lift of the 6m water to be 0.04MPa and the full-open pressure to be 0.055 MPa; setting the action pressure of the 7m water pump lift to be 0.05MPa and the full-open pressure to be 0.065 MPa; under the set action pressure, the water leakage is qualified when the water leakage is less than 5L/h; under the full-open pressure, the flow is qualified when the flow is smaller than 150L/h;
B. the plate-replacing integrated waterway part is provided with one piece, a heating backwater water inlet c and a plug 43 on a heating backwater water outlet d are left, and the plug 43 on a heating water outlet b is detached;
C. placing the integrated waterway 4 on an experiment bench 6 above a water tank 7, connecting a connecting wire of the control device 5 and a three-way motor, and communicating the electromagnetic flowmeter 3 with a water inlet a through a water pipe and a quick connector; the power supply is turned on, a state switching key in the control device 5 is pressed to select a bathing state, a bathing state indicator lamp is turned on, the execution module drives the three-way valve 41 to move through the three-way motor, and the water inlet a is communicated with the heating backwater water outlet d;
D. b, inputting water flow of 0.08MPa to a water inlet a through an automatic pressure regulating valve 12 according to the water pressure value at two sides of the sealing end of the three-way valve set in the step A, opening a switch of an external water source, observing a heating water outlet b, and judging that the three-way valve is not tightly sealed and needs to be returned to a factory for reinstalling if the heating water outlet b flows out of water; if the heating water outlet b does not flow out, judging that the tee joint is tightly sealed, and entering the next step;
E. leaving the plugs 43 on the heating water outlet b, and removing the plugs 43 on the heating backwater water inlet c and the heating backwater water outlet d;
F. the power supply is turned on, a state switching key in the control device 5 is pressed to select a heating state, a heating state indicator lamp is turned on, the execution module drives the three-way valve 41 to move through the three-way motor, and the water inlet a is communicated with the heating water outlet b;
G. inputting water flow with specific pressure to a water inlet a through an automatic pressure regulating valve 12 according to the action pressure and the full-open pressure of the bypass valve set in the step A, opening a switch of an external water source, regulating the automatic pressure regulating valve 12 at the action pressure by a three-way switching valve 11, and reading the value of the electromagnetic flowmeter 3 under the action pressure; an automatic pressure regulating valve 12 for regulating the three-way switching valve 11 to enable water to flow to the full-open pressure position, and reading the numerical value of the electromagnetic flowmeter 3 under the full-open pressure;
H. and C, judging whether the bypass valve meets the standard requirement or not according to the parameters set in the step A.
Claims (7)
1. The wall-mounted boiler water path detection method is used for an integrated water path (4) to be detected, and is characterized by comprising the following steps of:
A. the method comprises the steps of formulating water pressure values at two sides of a sealing end of a three-way valve, action pressure of a bypass valve, full-opening pressure, maximum water leakage quantity of each action pressure and maximum water leakage quantity of each full-opening pressure according to a water pump lift;
B. the plate-taking and plate-changing integrated waterway part is provided with one piece, and the heating backwater water inlet c and the heating backwater water outlet d are blocked;
C. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating backwater water outlet d;
D. b, inputting water flow with specific pressure to the water inlet a according to the water pressure values at two sides of the sealing end of the three-way valve set in the step A, observing the heating water outlet b, and judging that the three-way valve is not tightly sealed and is required to be returned to a factory for reinstallation if the water flows out of the heating water outlet b; if the heating water outlet b does not flow out, judging that the tee joint is tightly sealed, and entering the next step;
E. plugging a heating water outlet b;
F. driving the three-way valve to move, and controlling the water inlet a to be communicated with the heating water outlet b;
G. b, inputting water flow with specific pressure into the water inlet a according to the action pressure of the bypass valve and the full-open pressure set in the step A, and reading the flow value at the water inlet a under each pressure;
H. and C, judging whether the bypass valve meets the standard requirement or not according to the parameters set in the step A.
2. A device for the wall-mounted boiler waterway detection method of claim 1, comprising an integrated waterway (4) to be detected, wherein a water inlet a, a heating water outlet b, a heating backwater water inlet c and a heating backwater water outlet d are arranged on the integrated waterway, the water inlet a is communicated with the heating water outlet b and the heating backwater water outlet d through a three-way valve (41), and the heating water outlet b is communicated with the heating backwater water outlet d through a bypass valve (42), and the device is characterized in that: the water inlet a is communicated with an external water source through an electromagnetic flowmeter (3), a pressure gauge (2) and a pressure regulating assembly (1) which are sequentially arranged, and a heating water outlet b, a heating water return water inlet c and a heating water return water outlet d are formed in the water inlet
And a plug (43) is detachably and hermetically connected with the upper part of the shell.
3. The wall-hanging stove water path detection device according to claim 2, wherein: the detection device further comprises a control device (5) for driving the three-way valve to move, the control device comprises a controller module, a keyboard module, a display module and an execution module, the controller module is respectively connected with the keyboard module, the display module and the execution module, and the execution module is connected with a three-way motor for driving the three-way valve to move through connecting wires and is used for executing corresponding actions after a mode or a state is selected.
4. The wall-hanging stove water path detection device according to claim 2, wherein: the detection device further comprises an experiment bench (6) for placing the pressure regulating assembly, the pressure gauge, the electromagnetic flowmeter and the integrated waterway, and a water tank (7) for containing water flowing out of each water gap is arranged on the experiment bench below the integrated waterway.
5. The wall-hanging stove water path detection device according to claim 2, wherein: the pressure regulating assembly comprises a three-way switching valve (11) and two automatic pressure regulating valves (12), wherein the three-way switching valve is respectively connected with an external water source and the two automatic pressure regulating valves, and the two automatic pressure regulating valves are connected with a pressure gauge.
6. The wall-hanging stove waterway detection device of claim 3, wherein: the keyboard module comprises a state switching key and an automatic mode key, wherein the state switching key is used for manually switching a heating state and a bathing state, and the automatic mode key is used for starting and stopping an automatic mode.
7. The wall-hanging stove waterway detection device of claim 3, wherein: the display module comprises three indicator lamps with different colors, and the indicator lamps respectively represent a heating state indicator lamp, a bath state indicator lamp and an automatic mode indicator lamp.
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| CN201710347894.5A CN107091735B (en) | 2017-05-17 | 2017-05-17 | Wall-mounted boiler waterway detection method and device |
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| CN201710347894.5A CN107091735B (en) | 2017-05-17 | 2017-05-17 | Wall-mounted boiler waterway detection method and device |
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| CN107091735A CN107091735A (en) | 2017-08-25 |
| CN107091735B true CN107091735B (en) | 2023-05-26 |
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| CN108302773A (en) * | 2018-03-28 | 2018-07-20 | 广东万家乐燃气具有限公司 | A kind of automatic butt-jointing mechanism of gas heater production line |
| CN110219859B (en) * | 2019-06-30 | 2020-06-02 | 潍柴动力股份有限公司 | Fault detection method and device and hydraulic drive system |
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| JP5330033B2 (en) * | 2009-03-12 | 2013-10-30 | 鹿島建設株式会社 | Water leakage inspection method for plastic water supply lines |
| EP2477020A1 (en) * | 2011-01-17 | 2012-07-18 | Clevergas Holding S.A. | System for detecting a fluid leak |
| CN103792082B (en) * | 2014-03-05 | 2016-01-27 | 福州大学 | Safety return-flow valve detection device and method |
| CN104502075B (en) * | 2014-12-03 | 2017-08-25 | 余姚市三力信电磁阀有限公司 | The method of the detection steam electromagnetic valve of safety |
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