CN110762900A

CN110762900A - Self-circulation bypass flow pipeline system of water source heat pump

Info

Publication number: CN110762900A
Application number: CN201910067769.8A
Authority: CN
Inventors: 杨浩俊; 陈浩; 高国瑜; 朱凯; 孙伟军; 李建红
Original assignee: China Shipbuilding NDRI Engineering Co Ltd
Current assignee: China Shipbuilding NDRI Engineering Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-02-07

Abstract

The invention relates to the technical field of energy conservation and emission reduction waste heat recovery, and discloses a water source heat pump self-circulation bypass flow pipeline system which comprises an evaporator, wherein a coil pipe is arranged in the middle of an inner cavity of the evaporator, two ends of the coil pipe sequentially penetrate through the evaporator and extend to the outside of the upper surface of the evaporator, two ends of the top of the evaporator are respectively and movably sleeved with a water inlet pipe and a water outlet pipe, and a temperature detector is fixedly arranged on the water inlet pipe. This water source heat pump self-loopa bypass pipe-line system, effect through temperature sensor, the extreme operating mode "low temperature in winter and air compressor machine low-load operation stack" basis temperature that meets as the evaporimeter is lower when the temperature, make motor and two water pump work, drive agitating unit and carry out the stirring that does not stop to the water that flows into evaporimeter and make the water intensive mixing in the evaporimeter, the water that flows through the circulation simultaneously makes the inside water of evaporimeter be in the state that flows all the time, can not cross freezing because of the temperature is low.

Description

Self-circulation bypass flow pipeline system of water source heat pump

Technical Field

The invention relates to the technical field of energy conservation and emission reduction waste heat recovery, in particular to a self-circulation bypass pipeline system of a water source heat pump.

Background

According to the actual condition of the operation of the air compressor, when the extreme working condition that the water temperature of the unit evaporator is low in winter and the low-load operation of the air compressor is superposed is inferred, the water temperature flowing into the evaporator is as low as 12 ℃ due to low basic water temperature and insufficient heat energy supplement temperature rise, the evaporator coil under the working condition has the possibility of local supercooling or even icing under the condition that the refrigerant continuously absorbs heat, and the evaporator coil is damaged seriously, so that a water source heat pump self-circulation bypass pipeline system is urgently needed to ensure that part of water is in a flowing state, balance the temperature of each part of the coil and effectively prevent supercooling icing.

Disclosure of Invention

The invention provides a water source heat pump self-circulation bypass pipeline system, which has the advantages of balancing the temperature of each part of a coil and preventing local water temperature from being low and even freezing, and solves the problems that the temperature of water flowing into an evaporator is as low as 12 ℃ due to low basic water temperature and insufficient heat energy for temperature supplement, and the evaporator coil is possibly too cold and even frozen and can be damaged seriously under the condition that the refrigerant continuously absorbs heat in the evaporator coil under the working condition, so that a water source heat pump self-circulation bypass pipeline system is urgently needed to ensure that part of water is in a flowing state, balance the temperature of each part of the coil and effectively prevent the supercooling and freezing.

The invention provides the following technical scheme: a water source heat pump self-circulation bypass flow pipeline system comprises an evaporator, wherein a coil pipe is arranged in the middle of an inner cavity of the evaporator, two ends of the coil pipe sequentially penetrate through and extend to the outer portion of the upper surface of the evaporator respectively, a water inlet pipe and a water outlet pipe are movably sleeved at two ends of the top of the evaporator respectively, a temperature detector is fixedly mounted on the water inlet pipe, a circulation water inlet and a circulation water outlet are respectively formed in the tops of two sides of the evaporator, a cavity is formed in the middle of the bottom end of the evaporator, a rotating shaft is movably sleeved at the top of the inner cavity of the cavity, a driving wheel set positioned in the cavity is fixedly sleeved at the outer portion of the rotating shaft, a motor frame is fixedly mounted at the bottom of the evaporator, a motor is fixedly mounted in the motor frame, connecting rods are movably sleeved at two ends of the inner cavity respectively, driven wheels positioned, and the top activity of two connecting rods has cup jointed the sealing washer that is located the evaporimeter inner wall, two the top of connecting rod respectively with agitating unit's bottom fixed connection, the left side of evaporimeter is provided with circulation water tank, the both ends at circulation water tank top are the activity respectively and have been cup jointed circulation inlet tube and circulation outlet pipe, and the circulation water tank top is located one side of circulation inlet tube and circulation outlet pipe fixed mounting respectively has a water pump, one the output of water pump leads to pipe I and the inside of circulation water inlet is fixed cup joints, and another the input of water pump leads to pipe II and the inside of circulation delivery port is fixed cup joints, the inside of circulation delivery port is fixed cup joints the water pipe III that runs through and extend to evaporimeter inner chamber bottom.

Preferably, agitating unit includes the bull stick, the bottom of bull stick run through and extend to the inner wall of evaporimeter and with the top fixed connection of connecting rod, the fixed coupling in outside of bull stick has the ring, the outside fixed mounting of ring has the stirring leaf that is the annular and distributes.

Preferably, the number of the circular rings is six, each group of the circular rings is three, and the circular rings in each group are distributed on the rotating rod in the evaporator at equal intervals.

Preferably, the center of the output shaft of the motor and the center of the rotating shaft are on the same vertical line, and the output shaft of the motor is fixedly sleeved at the bottom end of the rotating shaft.

Preferably, the outer part of one driven wheel is in transmission connection with the top of the driving wheel set through a belt, and the outer part of the other driven wheel is in transmission connection with the bottom of the driving wheel set through a belt.

Preferably, one end of the circulating water outlet pipe is fixedly sleeved with the input end of one water pump, the bottom end of the circulating water outlet pipe penetrates through and extends into the evaporator, and a gap exists between the bottom end of the circulating water outlet pipe and the bottom of the inner cavity of the circulating water tank.

Preferably, the top end of the circulating water inlet pipe is fixedly sleeved with the output end of the other water pump, and the bottom end of the circulating water inlet pipe penetrates through and extends into the circulating water tank.

The invention has the following beneficial effects:

1. this water source heat pump self-loopa bypass pipe-line system, effect through temperature sensor, the extreme operating mode "low temperature in winter and air compressor machine low-load operation stack" basis temperature that meets as the evaporimeter is lower when the temperature, make motor and two water pump work, drive agitating unit and carry out the stirring that does not stop to the water that flows into evaporimeter and make the water intensive mixing in the evaporimeter, the water that flows through the circulation simultaneously makes the inside water of evaporimeter be in the state that flows all the time, can not cross freezing because of the temperature is low.

2. This water source heat pump self-loopa bypass flow pipe-line system, through circulation water tank, water pump, circulation inlet tube, circulation outlet pipe and agitating unit's combined action, make the inside water of evaporimeter be in the mobile state always, balanced the temperature of each part of the inside coil pipe of evaporimeter, the condition that can not have local icing to lead to the coil pipe to break simultaneously takes place.

3. This water source heat pump self-loopa bypass flow pipe-line system, through being close to circulating water tank's bottom as far as possible with the bottom of circulation outlet pipe, when the water level of the inside circulating water of circulating water tank was lower, still can be with inside water suction evaporator of circulating water tank through the circulating water exit tube, when basic temperature was lower, made the inside water of evaporator be in the mobile state always.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of a stirring device according to the present invention;

FIG. 3 is an enlarged view of the position A in the structure of the present invention.

In the figure: 1. an evaporator; 2. a coil pipe; 3. a water inlet pipe; 4. a water outlet pipe; 5. a temperature detector; 6. a circulating water inlet; 7. a circulating water outlet; 8. a cavity; 9. a rotating shaft; 10. a driving wheel set; 11. a motor frame; 12. a motor; 13. a connecting rod; 14. a driven wheel; 15. a seal ring; 16. a stirring device; 161. a rotating rod; 162. a circular ring; 163. stirring blades; 17. a circulating water tank; 18. circulating a water inlet pipe; 19. circulating a water outlet pipe; 20. a water pump; 21. a water pipe I; 22. a water pipe II; 23. and a water pipe III.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention, and the filling of hatching in the drawings has no particular meaning, but is merely for distinguishing the positional relationships between various objects in the drawings.

Referring to fig. 1-3, a water source heat pump self-circulation bypass pipeline system comprises an evaporator 1, a coil 2 is disposed in the middle of the inner cavity of the evaporator 1, two ends of the coil 2 respectively penetrate and extend to the outside of the upper surface of the evaporator 1, a water inlet pipe 3 and a water outlet pipe 4 are respectively movably sleeved at two ends of the top of the evaporator 1, a temperature detector 5 is fixedly mounted on the water inlet pipe 3, a circulation water inlet 6 and a circulation water outlet 7 are respectively disposed at the top of two sides of the evaporator 1, a cavity 8 is disposed in the middle of the bottom of the evaporator 1, a rotating shaft 9 is movably sleeved at the top of the inner cavity of the cavity 8, a driving wheel set 10 located inside the cavity 8 is fixedly sleeved at the outside of the rotating shaft 9, a motor frame 11 is fixedly mounted at the bottom of the evaporator 1, a motor 12 is fixedly mounted inside the motor frame 11, and the center of the output, an output shaft of a motor 12 is fixedly sleeved with the bottom end of a rotating shaft 9, under the combined action of the motor 12, the rotating shaft 9 and a belt, power is provided for a stirring device 16, water flowing into the evaporator 1 is subjected to component mixing, so that the water temperature of each part in the evaporator 1 is the same, two ends of an inner cavity of the cavity 8 are respectively movably sleeved with connecting rods 13, driven wheels 14 positioned in the cavity 8 are respectively fixedly sleeved outside the two connecting rods 13, the outside of one driven wheel 14 is connected with the top of a driving wheel set 10 through belt transmission, the outside of the other driven wheel 14 is connected with the bottom of the driving wheel set 10 through belt transmission, the driving wheel set 10 is connected with the two driven wheels 14 through belts respectively, the situation that the two driven wheels 14 cannot rotate together due to the fact that the two driven wheels 14 and the driving wheel set 10 are on the same straight line is avoided, and sealing rings 15 positioned on the inner wall of the evaporator 1, the top ends of the two connecting rods 13 are respectively fixedly connected with the bottom end of the stirring device 16, the stirring device 16 comprises a rotating rod 161, the bottom end of the rotating rod 161 penetrates through and extends to the inner wall of the evaporator 1 and is fixedly connected with the top of the connecting rod 13, the outer part of the rotating rod 161 is fixedly sleeved with a ring 162, the number of the rings 162 is six, each group of the rings 162 is three, each group of the rings 162 is equidistantly distributed on the rotating rod 161 positioned in the evaporator 1, water in the evaporator 1 is always in a flowing state under the combined action of the rings 162 and the stirring blades 163, the local icing condition is avoided, the temperature of each part of the coil 2 in the evaporator 1 is balanced, the stirring blades 163 which are annularly distributed are fixedly arranged outside the rings 162, when the extreme working condition of 'low water temperature in winter and the superposition of the low-load operation of an air compressor' is met at the evaporation side, the temperature of the basic water temperature is lower, and at this time, under, the water flowing into the evaporator 1 is continuously stirred, so that the water is always in a flowing state and cannot be frozen due to the excessively low water temperature, the left side of the evaporator 1 is provided with a circulating water tank 17, two ends of the top of the circulating water tank 17 are respectively movably sleeved with a circulating water inlet pipe 18 and a circulating water outlet pipe 19, the top end of the circulating water inlet pipe 18 is fixedly sleeved with the output end of another water pump 20, the bottom end of the circulating water inlet pipe 18 penetrates through and extends into the circulating water tank 17, the water in the evaporator 1 can be sucked into the circulating water tank 17 under the combined action of the circulating water inlet pipe 18 and the water pump 20, so that the water can repeatedly enter and exit the evaporator 1, freezing caused by the low water temperature of part of the water is avoided, one end of the circulating water outlet pipe 19 is fixedly sleeved with the input end of one water pump 20, the bottom end of the circulating water outlet pipe 19 penetrates through and extends into the evaporator 1, and a gap exists between the, the bottom of circulating water outlet pipe 19 is close to the bottom of circulating water tank 17 as far as possible, when the water level of the circulating water in circulating water tank 17 is lower, the water in circulating water tank 17 can still be sucked into evaporator 1 through circulating water outlet pipe 19, when the basic water temperature is lower, the water in evaporator 1 is always in a flowing state, and one side of circulating water tank 17 top, which is located circulating water inlet pipe 18 and circulating water outlet pipe 19, is respectively and fixedly provided with water pump 20, the output end of one water pump 20 is fixedly sleeved with the inside of circulating water inlet 6 through water pipe I21, the input end of the other water pump 20 is fixedly sleeved with the inside of circulating water outlet 7 through water pipe II22, and the inside of circulating water outlet 7 is fixedly sleeved with water pipe III23 which penetrates through and extends to the bottom of the.

The theory of operation, at first basic water passes through the inside that inlet tube 3 got into evaporimeter 1, when detecting basic temperature lower under temperature sensor 5's effect, can be automatic open the switch of two water pumps 18 and motor 12, two water pumps 18 are through circulation inlet tube 18, circulation outlet pipe 19, water pipe I21, water pipe II and water pipe III23 are incessantly to the inside water injection of evaporimeter 1 and absorb water, make the inside water of evaporimeter 1 be in the state of flowing all the time, motor 12 work drives axis of rotation 9 and rotates, through at driving wheel group 10, under two effects from driving wheel 14 and belt, make the rotation that two connecting rods 13 are incessant, drive two agitating unit 16 when two connecting rods 13 rotate and stir the inside water of evaporimeter 1, the temperature of each position of balanced coil pipe 2, can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a water source heat pump self-loopa bypass flow pipe-line system, includes evaporimeter (1), its characterized in that: the evaporator is characterized in that a coil (2) is arranged in the middle of an inner cavity of the evaporator (1), two ends of the coil (2) sequentially penetrate through and extend to the outer portion of the upper surface of the evaporator (1), a water inlet pipe (3) and a water outlet pipe (4) are movably sleeved at two ends of the top of the evaporator (1) respectively, a temperature detector (5) is fixedly mounted on the water inlet pipe (3), a circulating water inlet (6) and a circulating water outlet (7) are respectively formed in the tops of two sides of the evaporator (1), a cavity (8) is formed in the middle of the bottom of the evaporator (1), a rotating shaft (9) is movably sleeved at the top of the inner cavity of the cavity (8), a driving wheel set (10) located inside the cavity (8) is fixedly sleeved at the outer portion of the rotating shaft (9), a motor frame (11) is fixedly mounted at the bottom of the evaporator (1), and a motor (12) is, the two ends of the inner cavity of the cavity (8) are respectively movably sleeved with a connecting rod (13), the outer parts of the two connecting rods (13) are respectively fixedly sleeved with a driven wheel (14) positioned in the cavity (8), the top ends of the two connecting rods (13) are movably sleeved with a sealing ring (15) positioned on the inner wall of the evaporator (1), the top ends of the two connecting rods (13) are respectively fixedly connected with the bottom end of a stirring device (16), the left side of the evaporator (1) is provided with a circulating water tank (17), the two ends of the top of the circulating water tank (17) are respectively movably sleeved with a circulating water inlet pipe (18) and a circulating water outlet pipe (19), one side of the top of the circulating water tank (17) positioned on the circulating water inlet pipe (18) and one side of the top of the circulating water outlet pipe (19) are respectively and fixedly provided with water pumps (20), and the output end of one water pump (20, and the input end of the other water pump (20) is fixedly sleeved with the inside of the circulating water outlet (7) through a water pipe II (22), and a water pipe III (23) which penetrates through and extends to the bottom of the inner cavity of the evaporator (1) is fixedly sleeved in the inside of the circulating water outlet (7).

2. The water source heat pump self-circulation bypass pipeline system according to claim 1, wherein: agitating unit (16) include bull stick (161), the bottom of bull stick (161) run through and extend to the inner wall of evaporimeter (1) and with the top fixed connection of connecting rod (13), the external fixation of bull stick (161) has cup jointed ring (162), the external fixed mounting of ring (162) has stirring leaf (163) that are the annular and distribute.

3. The water source heat pump self-circulation bypass pipeline system according to claim 2, wherein: the number of the circular rings (162) is six, each group of the circular rings is three, and the circular rings (162) in each group are distributed on a rotating rod (161) in the evaporator (1) at equal intervals.

4. The water source heat pump self-circulation bypass pipeline system according to claim 1, wherein: the center of the output shaft of the motor (12) and the center of the rotating shaft (9) are on the same vertical line, and the output shaft of the motor (12) is fixedly sleeved with the bottom end of the rotating shaft (9).

5. The water source heat pump self-circulation bypass pipeline system according to claim 1, wherein: the outer part of one driven wheel (14) is in transmission connection with the top of the driving wheel set (10) through a belt, and the outer part of the other driven wheel (14) is in transmission connection with the bottom of the driving wheel set (10) through a belt.

6. The water source heat pump self-circulation bypass pipeline system according to claim 1, wherein: one end of the circulating water outlet pipe (19) is fixedly sleeved with the input end of one water pump (20), the bottom end of the circulating water outlet pipe (19) penetrates through and extends to the inside of the evaporator (1), and a gap exists between the bottom end of the circulating water outlet pipe (19) and the bottom of the inner cavity of the circulating water tank (17).

7. The water source heat pump self-circulation bypass pipeline system according to claim 1, wherein: the top end of the circulating water inlet pipe (18) is fixedly sleeved with the output end of another water pump (20), and the bottom end of the circulating water inlet pipe (18) penetrates through and extends to the inside of the circulating water tank (17).