Automatic water replenishing device of ground source heat pump air conditioning unit

Abstract

The utility model provides an automatic water replenishing device of a ground source heat pump air conditioning unit, which comprises a buffer tank, an air conditioning unit body, a fan coil, a main pump and a circulating pump, a water inlet pipe is fixedly connected between the input end of the buffer tank and the output end of the main pump, and the water inlet pipe is rotatably connected with an electromagnetic valve. A water guide pipe is fixedly connected between the output end of the buffer box and the input end of the circulating pump, a backflow pipe is fixedly connected between the air conditioning unit body and the fan coil, the output end of the fan coil is fixedly connected with a circulating pipe, and the other end of the circulating pipe is fixedly connected to the water guide pipe. The device solves the technical problems that an existing device needs to be manually controlled during water replenishing and is very inconvenient to use, and when a pipeline valve leaks, feedback processing cannot be conducted in time, and the device has practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heat supply and refrigeration air conditioning system, in particular to an automatic water replenishing device of ground source heat pump air conditioning unit. BACKGROUND

[0002] In the ground source heat pump central air conditioning system, the water circulation system mode of fan coil is used for indoor cooling (heating), and a certain amount of water is consumed during circulation. In order to achieve the purpose of automatic water replenishing at any time, a water supply tank or a water pump is generally installed for water supply.

[0003] The existing automatic water replenishing device generally installs a valve on the pipeline to control the opening and closing of the pipeline. Since the pipeline is generally directly connected, a pressure gauge needs to be installed on the pipeline. After the water supply is turned on, it is very inconvenient to observe and operate on the spot manually. Moreover, since the pipeline is directly connected, when the valve fails due to service life problems, it cannot be timely feedback and handled. Based on this, an automatic water replenishing device of ground source heat pump air conditioning unit is proposed for improvement. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the technical deficiency of the above-mentioned technology, and provides an automatic water replenishing device of ground source heat pump air conditioning unit.

[0005] Therefore, the utility model provides an automatic water replenishing device of ground source heat pump air conditioning unit, which comprises a buffer tank, an air conditioning unit body, a fan coil, a main pump and a circulating pump, a water inlet pipe is fixedly connected between the input end of the buffer tank and the output end of the main pump, an electromagnetic valve is rotatably connected on the water inlet pipe, a water guide pipe is fixedly connected between the output end of the buffer tank and the input end of the circulating pump, a backflow pipe is fixedly connected between the air conditioning unit body and the fan coil, a circulating pipe is fixedly connected to the output end of the fan coil, and the other end of the circulating pipe is fixedly connected to the water guide pipe.

[0006] Single-point water level sensors one and two are fixedly arranged in the buffer tank, the single-point water level sensor one is arranged at a position close to the lower end in the buffer tank, the single-point water level sensor two is arranged at a position close to the upper end in the buffer tank, a floating plate is movably arranged in the buffer tank, a microswitch is fixedly connected to the lower end surface of the top plate of the buffer tank, and an alarm is fixedly connected to the upper end surface of the top plate of the buffer tank.

[0007] Preferably, a controller is fixedly connected to the outer wall of one side of the front end surface of the buffer tank, and a mark scale is fixedly arranged on the other side of the front end surface of the buffer tank.

[0008] Preferably, the single-point water level sensors one and two and the electromagnetic valve are electrically connected with the controller, and the microswitch is electrically connected with the alarm.

[0009] Preferably, the upper end face of the buffer tank is fixedly connected with a valve pipe, which is made of a pipeline and a valve rotatingly connected to the outer wall of the pipeline.

[0010] Preferably, the two side inner walls of the buffer tank are fixedly connected with guide plates, the two guide plates are slidingly connected with guide rods, and the upper ends of the two guide rods are fixedly connected with the floating plate.

[0011] Preferably, the pipe wall of the circulating pipe is fixedly connected with a branch pipe, the branch pipe is rotatably connected with a protection valve, and the drainage end pipe of the return pipe is also rotatably connected with a protection valve.

[0012] Preferably, the output end of the circulating pump is fixedly connected with an air conditioning unit body, one end of the air conditioning unit body is fixedly connected with a pipeline one and a pipeline two, and the pipeline one is fixedly connected with the end of the water inlet pipe close to the main pump.

[0013] Preferably, the water guide pipe is rotatably connected with a one-way valve, and the one-way valve is installed at the outer position of the pipe body between the circulating pipe and the circulating pump.

[0014] The automatic water replenishing device of the ground source heat pump air conditioning unit has the following beneficial effects:

[0015] (1) By cooperating the buffer tank, the main pump, the circulating pump, the water guide pipe, the water inlet pipe and the electromagnetic valve structure, the main pump can supply water to the air conditioning unit while the water inlet pipe supplies water to the buffer tank, so that the automatic water replenishing is facilitated. In this process, the water flow is buffered and stored in the buffer tank, and then the single-point water level sensor one and the single-point water level sensor two in the buffer tank are cooperated to monitor the water level. When the water level is located at the single-point water level sensor one, the electromagnetic valve is opened to supply water, and when the water level is located at the single-point water level sensor two, the electromagnetic valve is closed. No human operation is needed, which is convenient and time-saving.

[0016] (2) By cooperating the guide plate, the guide rod, the floating plate, the pressure sensor and the alarm structure on the buffer tank, when the electromagnetic valve fails and leaks, the floating plate is driven to rise with the rising water level to press the microswitch to open the alarm, so that the alarm is given to facilitate the timely treatment of the relevant personnel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is the front view of the utility model;

[0018] Fig. 2 is the internal schematic view of the local structure of the utility model;

[0019] Fig. 3 is the internal structure view of the buffer tank of the utility model;

[0020] Fig. 4 is a pipeline connection front view of the utility model;

[0021] Marked in the figure: 1. buffer tank, 11. guide plate, 12. guide rod, 13. floating plate, 14. single-point water level sensor one, 15. single-point water level sensor two, 16. touch switch, 17. alarm, 18. valve pipe, 19. controller, 2. air conditioning unit body, 21. pipeline one, 22. pipeline two, 3. fan coil, 31. circulating pipe, 32. branch pipe, 33. protection valve, 4. main pump, 5. circulating pump, 6. return pipe, 7. water guide pipe, 71. one-way valve, 8. water inlet pipe, 81. electromagnetic valve. DETAILED DESCRIPTION

[0022] The utility model makes further explanation in combination with the drawings and specific embodiment, help to understand the content of the utility model. The method used in the utility model is conventional method if no special provision, the raw material and device used are conventional market products if no special provision.

[0023] As shown in Figs. 1-4 The utility model provides an automatic water replenishing device of ground source heat pump air conditioning unit, including buffer tank 1, air conditioning unit body 2, fan coil 3, main pump 4 and circulating pump 5, and the input end of buffer tank 1 and the output end of main pump 4 are fixedly connected with water inlet pipe 8, and electromagnetic valve 81 is rotatably connected on water inlet pipe 8, and the output end of buffer tank 1 and the input end of circulating pump 5 are fixedly connected with water guide pipe 7, and air conditioning unit body 2 and fan coil 3 are fixedly connected with return pipe 6, and the output end of fan coil 3 is fixedly connected with circulating pipe 31, and the other end of circulating pipe 31 is fixedly connected on water guide pipe 7, and one-way valve 71 is rotatably connected on water guide pipe 7, and one-way valve 71 is installed at the position outside the pipe body between circulating pipe 31 and circulating pump 5, and one-way valve 71 can realize automatic opening and closing function, when the pressure in circulating pipe 31 and return pipe 6 increases, the external water supply from water guide pipe 7 is stopped, when the water pressure reduces, then water guide pipe 7 is automatically opened to supplement liquid in the pipeline where circulating pump 5 is located.

[0024] Single-point water level sensor one 14 is arranged at the position close to the lower end in buffer tank 1, single-point water level sensor two 15 is arranged at the position close to the upper end in buffer tank 1, floating plate 13 is movably arranged in buffer tank 1, the lower end surface of the top plate of buffer tank 1 is fixedly connected with touch switch 16, and the upper end surface of the top plate of buffer tank 1 is fixedly connected with alarm 17, when electromagnetic valve 81 fails and leaks, the liquid level in buffer tank 1 continuously rises, finally drives floating plate 13 to press touch switch 16 to open alarm 17 and alarm, reminds the relevant personnel.

[0025] The front end face one side outer wall of the buffer tank 1 is fixedly connected with a controller 19, and the front end face other side of the buffer tank 1 is fixedly provided with an identification scale; the single-point water level sensor one 14, the single-point water level sensor two 15 and the electromagnetic valve 81 are electrically connected with the controller 19; the single-point water level sensor one 14 monitors the low point water level in the buffer tank 1, and the single-point water level sensor two 15 monitors the high point water level in the buffer tank 1, so that the controller 19 is used for automatically controlling the start and stop of the electromagnetic valve 81, and the touch switch 16 is electrically connected with the alarm 17.

[0026] The upper end face one side of the buffer tank 1 is fixedly connected with a valve pipe 18, the valve pipe 18 is made of a pipeline and a valve rotatingly connected to the outer wall of the pipeline, the inner walls of the two sides of the buffer tank 1 are fixedly connected with guide plates 11, the guide plates 11 are slidingly connected with guide rods 12, the upper ends of the guide rods 12 are fixedly connected with a floating plate 13, a branch pipe 32 is fixedly connected to the pipe wall of a circulating pipe 31, and a protection valve 33 is rotatably connected to the branch pipe 32; the drain end pipe of a backflow pipe 6 is also rotatably connected with the protection valve 33, so as to release pressure and avoid that, when the one-way valve 71 leaks, the pressure in the circulating pipeline is too large, thereby causing a safety hazard.

[0027] The output end of the circulating pump 5 is fixedly connected with the air conditioning unit body 2, the circulating pump 5 drives the liquid passing through the fan-coil 3 to flow through the air conditioning unit body 2, one end of the air conditioning unit body 2 is fixedly connected with a pipeline one 21 and a pipeline two 22, the pipeline one 21 is fixedly connected to the pipe body close to one end of the water inlet pipe 8 of the main pump 4, the main pump 4 drives the external water source to enter the air conditioning unit body 2 through the pipeline one 21, and then is discharged through the pipeline two 22.

[0028] In the description of the utility model, it is understood that the terms "left", "right", "top", "bottom", "top", "bottom", "front", "back", "inside", "outside", "back", "middle" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0029] The above-mentioned is only a specific embodiment of the utility model, and cannot limit the scope of the utility model, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the utility model patent protection should still fall within the scope of the utility model claims.

Claims

1. An automatic water replenishing device for a ground source heat pump air conditioning unit, comprising a buffer tank (1), an air conditioning unit body (2), a fan coil (3), a main pump (4) and a circulating pump (5), characterized in that: The input end of the buffer tank (1) and the output end of the main pump (4) are fixedly connected with a water inlet pipe (8), the water inlet pipe (8) is rotatably connected with a solenoid valve (81), the output end of the buffer tank (1) and the input end of the circulating pump (5) are fixedly connected with a water guide pipe (7), the air conditioning unit body (2) and the fan coil (3) are fixedly connected with a backflow pipe (6), the output end of the fan coil (3) is fixedly connected with a circulating pipe (31), the other end of the circulating pipe (31) is fixedly connected with the water guide pipe (7); The buffer tank (1) is fixedly provided with a single-point water level sensor one (14) and a single-point water level sensor two (15) respectively, the single-point water level sensor one (14) is arranged at the position close to the lower end in the buffer tank (1), the single-point water level sensor two (15) is arranged at the position close to the upper end in the buffer tank (1), the buffer tank (1) is movably provided with a floating plate (13), the lower end surface of the top plate of the buffer tank (1) is fixedly connected with a touch switch (16), and the upper end surface of the top plate of the buffer tank (1) is fixedly connected with an alarm (17).

2. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, The front end surface of the buffer tank (1) is fixedly connected with a controller (19) on one side of the outer wall, and the front end surface of the buffer tank (1) is fixedly provided with a mark scale on the other side.

3. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 2, characterized in that, The single-point water level sensor one (14), the single-point water level sensor two (15) and the solenoid valve (81) are electrically connected with the controller (19), and the touch switch (16) is electrically connected with the alarm (17).

4. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, The upper end surface of the buffer tank (1) is fixedly connected with a valve pipe (18), and the valve pipe (18) is made of a pipeline and a valve rotatably connected to the outer wall of the pipeline.

5. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, The two side inner walls of the buffer tank (1) are fixedly connected with guide plates (11), the guide plates (11) are slidably connected with guide rods (12), and the upper ends of the guide rods (12) are fixedly connected with the floating plate (13).

6. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, The pipe wall of the circulating pipe (31) is fixedly connected with a branch pipe (32), the branch pipe (32) is rotatably connected with a protection valve (33), and the drainage end pipe of the backflow pipe (6) is also rotatably connected with a protection valve (33).

7. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, The output end of the circulating pump (5) is fixedly connected with the air conditioning unit body (2), one end of the air conditioning unit body (2) is fixedly connected with a pipeline one (21) and a pipeline two (22) respectively, and the pipeline one (21) is fixedly connected with the water inlet pipe (8) at the end of the main pump (4).

8. The automatic water replenishing device of a ground-source heat pump air conditioning unit according to claim 1, characterized in that, A one-way valve (71) is rotatably connected to the water guide pipe (7), and the one-way valve (71) is installed at the outer position of the pipe body between the circulating pipe (31) and the circulating pump (5).

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