CN113531710A - Cold and hot central air conditioning pump circulation system - Google Patents

Abstract

The utility model relates to a cold and hot central air conditioning pump circulation system belongs to the control by temperature change equipment field, including air pipe, water tower and air unit, the intercommunication has the circulating line subassembly between water tower and the air unit, the circulating line system includes inlet channel, circulating pump and wet return, the delivery port and the wet return intercommunication of circulating pump, the inlet channel includes first inlet tube and second inlet tube, the one end that first inlet tube was kept away from to the second inlet tube communicates with the water inlet of circulating pump, the intercommunication has filter equipment between first inlet tube and the second inlet tube, filter equipment is used for filtering the rivers that get into in the circulating pump. This application has the life's of improvement circulating pump effect.

Description

Cold and hot central air conditioning pump circulation system

Technical Field

The application relates to the field of temperature control equipment, in particular to a cold and hot central air-conditioning pump circulation system.

Background

With the rapid development of economic society, central air conditioners are widely used in the field of temperature control of large-scale business and super and office buildings, and a central air conditioning system generally comprises a cold and heat source system and an air conditioning system, and can play roles in indoor refrigeration, indoor heating, indoor air purification and indoor air circulation.

The Chinese patent with the publication number of CN105571191B discloses a cold and hot central air-conditioning pump circulating system, which comprises a circulating water tank, wherein the circulating water tank is sequentially communicated with a cooling circulating pump and a condenser, the condenser is communicated with a water cooling tower, the water cooling tower is communicated with the circulating water tank, the cold and hot central air-conditioning pump circulating system also comprises an evaporator, the evaporator is communicated with an indoor circulating pump, the indoor circulating pump is communicated with a hot water furnace, and the hot water furnace is communicated with a fan coil; in the using process, cold water in the water cooling tower is pumped out through the cooling circulating pump, cold air is formed through the condenser, the purpose of refrigeration is achieved, hot water in the hot water furnace is pumped out through the indoor circulating pump, hot air is formed through the evaporator, and the purpose of heating is achieved.

However, the inventors have considered that the related art described above has a drawback in that as the use time of the cooling circulation pump and the indoor circulation pump increases, impurities and scales in the pipe damage the circulation pump, thereby reducing the service life of the circulation pump.

Disclosure of Invention

In order to prolong the service life of the circulating pump, the application provides a cold and hot central air-conditioning pump circulating system.

The application provides a cold and hot central air conditioning pump circulation system adopts following technical scheme:

the utility model provides a cold and hot central air conditioning pump circulation system, includes air pipe, water tower and air unit, the intercommunication has the circulating line subassembly between water tower and the air unit, the circulating line system includes inlet channel, circulating pump and return water pipe, the delivery port and the return water pipe intercommunication of circulating pump, the inlet channel includes first inlet tube and second inlet tube, the one end of first inlet tube and the water inlet intercommunication of circulating pump are kept away from to the second inlet tube, the intercommunication has filter equipment between first inlet tube and the second inlet tube, filter equipment is used for filtering the rivers that get into in the circulating pump.

By adopting the technical scheme, when the central air conditioner is used for refrigerating, firstly, the water in the water tower is cooled, then the circulating pump is started, the cooling water in the water tower is pumped into the first water inlet pipe, then, the first water inlet pipe filters the cooling water through the filtering device, so that the scale and impurities in the cooling water are filtered, the filtered cooling water enters the circulating pump through the second water inlet pipe, then, the cooling water is pumped into the air unit through the circulating pump, then, the air unit generates cold air to enter the ventilating pipeline, the indoor refrigeration and cooling can be carried out, and the heating process is the same; in the process, the water flow entering the circulating pump is firstly filtered through the filtering device, so that the scale and impurities entering the circulating pump can be effectively reduced, the service life of the circulating pump is obviously prolonged, the maintenance cost of the circulating pump is effectively reduced, and the circulating pump has excellent practicability.

Optionally, filter equipment includes the connecting tube, the one end intercommunication of water tower is kept away from with first inlet tube to the one end of connecting tube, and the one end intercommunication of circulating pump is kept away from with the second inlet tube to the other end, be provided with the filter screen in the connecting tube, the diameter of filter screen and the internal diameter looks adaptation of connecting tube.

Through adopting above-mentioned technical scheme, rivers flow in the water tower after flowing into first inlet tube, flow in the connecting tube, filter the water that flows in the connecting tube through the filter screen afterwards, filter incrustation scale and impurity in the rivers to play the effect that reduces incrustation scale and impurity that get into in the circulating pump, improved the life of circulating pump.

Optionally, the one end that the water tower was kept away from to first inlet tube and the one end that the circulating pump was kept away from to the second inlet tube all communicate there is fixed pipeline, the both ends of fixed pipeline run through the setting, the connecting tube is provided with two, the connecting tube can dismantle the both ends that set up at fixed pipeline, the both ends of fixed pipeline all are provided with and are used for sealing open-ended first valve.

Through adopting above-mentioned technical scheme, in central air conditioning's in-service use, a first valve is in the state of opening after the first valve on the fixed pipeline is general, the first valve of the other end then is in the state of closing, along with the increase of live time, there are more incrustation scale and impurity to glue on connecting tube inside and the filter screen, close the first valve that is in the state of opening this moment, open the first valve of the other end, thereby take off the connecting tube who leads to water before, rivers flow in the second connecting tube through connecting tube this moment, can wash another connecting tube who takes off, at this in-process, the water supply that the air unit is all the time is continuous, thereby avoided being in the state of shutting down at the in-process central air conditioning who clears up the connecting tube, the holistic practicality of device has been improved.

Optionally, the end of the fixed pipeline is rotatably sleeved with a connecting sleeve along the axis direction of the fixed pipeline, an inner thread is arranged on the inner wall of the connecting sleeve, an outer thread is arranged on the outer wall of the end of the connecting pipeline, and the inner thread is matched with the outer thread.

By adopting the technical scheme, when the connecting pipeline is taken down from the fixed pipeline and is installed, the connecting pipeline can be taken down from the fixed pipeline or installed by screwing the connecting sleeve, the operation is simple and rapid, and the efficiency of taking down and installing the connecting pipeline is effectively improved.

Optionally, the end of the fixed pipeline is slidably sleeved with a sliding sleeve along the axis direction of the fixed pipeline, the connecting sleeve is rotatably connected with the sliding sleeve, a first elastic part is arranged on the fixed pipeline, and the first elastic part is used for driving the sliding sleeve to move towards the direction away from the opening of the fixed pipeline.

Through adopting above-mentioned technical scheme, when installing the connecting tube, at first drive adapter sleeve and sliding sleeve towards keeping away from the direction motion of fixed pipeline opening, thereby make the tip of fixed pipeline expose, drive the tip of connecting tube and the tip butt of fixed pipeline afterwards, drive adapter sleeve and sliding sleeve towards the connecting tube motion this moment, make internal thread and external screw thread meshing, rotate the adapter sleeve afterwards, can drive adapter sleeve and sliding sleeve towards the connecting tube motion, first elastic component receives the extrusion at this in-process, thereby store elastic potential energy, along with the continuation motion of adapter sleeve and sliding sleeve, thereby closely press the port of connecting tube on the port of fixed pipeline, the seal between connecting tube and the fixed pipeline has been improved effectively, infiltration in the course of the work has been reduced effectively.

Optionally, the spout has been seted up along the axis direction of fixed pipeline on the outer wall of fixed pipeline tip, it is provided with the slider to slide in the spout, the bar groove has been seted up along the direction of fixed pipeline axis on the inner wall of sliding sleeve, the one end that the spout was kept away from to the slider is located the bar inslot and slides with the sliding sleeve and is connected, first elastic component is used for ordering about the slider orientation and is close to the motion of fixed pipeline open-ended direction.

Through adopting above-mentioned technical scheme, it rotates to twist the adapter sleeve, thereby drive adapter sleeve and sliding sleeve towards the in-process of connecting tube motion, the slider is at first located the one end that the bar inslot is close to the fixed pipeline port under the effect of first elastic component, along with the motion of sliding sleeve, the slider is close to the lateral wall butt of fixed pipeline opening one end and spout, thereby the position of slider has been injectd, continue to rotate the adapter sleeve this moment, drive the sliding sleeve motion, and then extrude first elastic component, reach the purpose that closely compresses tightly the port of connecting tube on the port of fixed pipeline, thereby the infiltration in the reduction working process has been played.

Optionally, the fixed cover is equipped with the boss on the connecting tube, set up the mounting groove with the inside intercommunication of connecting tube on the lateral wall of boss, the mounting groove is used for supplying the filter screen to pass, be provided with the installation piece in the mounting groove, installation piece and filter screen fixed connection, the installation piece can be dismantled with the boss and be connected.

Through adopting above-mentioned technical scheme, when wasing connecting tube and filter screen, dismantle the installation piece from the boss, and then drive the filter screen and break away from the connecting tube, clear up alone the filter screen this moment, can improve the clean effect to the filter screen effectively, and then improved the filter effect in the follow-up filter screen use.

Optionally, a mounting hole is formed in the side wall of the mounting block, a limiting block is slidably arranged in the mounting hole, a limiting hole for inserting the limiting block is formed in the side wall of the mounting groove, a second elastic piece is arranged on the mounting block and used for driving the limiting block to move towards the direction far away from the mounting hole, and a driving piece used for driving the limiting block to move is arranged on the mounting block.

Through adopting above-mentioned technical scheme, when taking off the filter screen from the connecting tube in, beat the direction motion that the spacing hole was kept away from to the stopper orientation through the driving piece, make the stopper break away from spacing hole, can drive the direction motion that the mounting groove was kept away from to the installation piece orientation afterwards to take out the filter screen from the connecting tube, convenient operation is swift, has improved staff's work efficiency.

Optionally, a second valve for opening and closing the second water inlet pipe is arranged on the second water inlet pipe, a through hole communicated with the inside of the connecting pipe is formed in the connecting pipe, a sealing element is arranged on the connecting pipe, and the sealing element is used for sealing the through hole.

By adopting the technical scheme, when different connecting pipelines are replaced to supply water to the second water inlet pipe, the second valve is firstly closed, then the sealing element on the connecting pipeline which is not communicated with water is contacted with the second water inlet pipe to seal the through hole, then the two first valves are completely opened, at the moment, the two connecting pipelines are communicated, at the moment, a worker manually presses the water in the water tower into the two connecting pipelines, so that the air in the two connecting pipelines is completely discharged through the through hole, then the through hole is sealed through the sealing element, the first valve which is opened firstly is closed, the replacement of the connecting pipelines is completed, then the connecting pipelines can be taken down from the fixed pipeline, the cleaning of the connecting pipelines and the filter screen is carried out, in the replacement process, the gas entering the connecting pipelines is effectively reduced, the gas entering the circulating pump is reduced, the noise generated in the working process of the circulating pump is reduced, further prolonging the service life of the circulating pump.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the water entering the circulating pump is filtered and purified through the two mutually independent connecting pipelines, so that water scale and impurities entering the circulating pump are reduced, and the service life of the circulating pump is prolonged;

2. in the installation process of the connecting pipeline, the port of the connecting pipeline is tightly pressed on the port of the fixed pipeline through the first elastic piece, so that the sealing property of the connecting part of the connecting pipeline and the fixed pipeline is improved;

3. when the connecting pipeline is replaced, the gas in the connecting pipeline is discharged through the through hole, the gas entering the circulating pump is reduced, the noise generated during the operation of the circulating pump is reduced, and the service life of the circulating pump is further prolonged.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is an exploded view of a filter assembly according to an embodiment of the present application;

FIG. 3 is an exploded cross-sectional schematic view of a filtration device according to an embodiment of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a cross-sectional view of a connecting tube and boss of an embodiment of the present application;

fig. 6 is an enlarged view of a portion B in fig. 5.

Description of reference numerals: 1. a ventilation duct; 11. an air unit; 12. an air inlet pipe; 2. a water tower; 3. a circulation pipe assembly; 31. a water inlet pipe; 311. a first water inlet pipe; 312. a second water inlet pipe; 32. a circulation pump; 33. a water return pipe; 331. a first water return pipe; 332. a second water return pipe; 34. a second valve; 4. a filtration device; 41. connecting a pipeline; 411. an external thread; 412. inserting a tube; 42. fixing the pipeline; 43. a first valve; 44. a chute; 45. a slider; 46. a sliding sleeve; 461. a strip-shaped groove; 462. an annular groove; 47. a first elastic member; 5. connecting sleeves; 51. an internal thread; 52. a ring block; 6. filtering with a screen; 7. a boss; 71. mounting grooves; 72. mounting blocks; 73. mounting holes; 74. a limiting block; 75. a limiting hole; 8. a drive member; 81. a drive slot; 82. a second elastic member; 9. a through hole; 91. a seal member; 92. and (4) a pull ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a cold and hot central air-conditioning pump circulation system.

Referring to fig. 1, a cold and hot central air-conditioning pump circulation system comprises a ventilation pipeline 1, a water tower 2 and an air unit 11, wherein the air unit 11 is communicated with the ventilation pipeline 1 through an air inlet pipe 12, and a cooling machine and a heating machine are arranged inside the water tower 2 and can respectively refrigerate and heat moisture in the water tower 2.

Referring to fig. 1 and 2, a circulation pipeline assembly 3 is communicated between the water tower 2 and the air unit 11, and the circulation pipeline system comprises a water inlet pipeline 31, a circulation pump 32 and a water return pipeline 33. The water inlet pipe 31 includes a first water inlet pipe 311 and a second water inlet pipe 312, and the water return pipe 33 includes a first water return pipe 331 and a second water return pipe 332; one end of the first water inlet pipe 311 is communicated with the water tower 2, one end of the second water inlet pipe 312 far away from the first water inlet pipe 311 is communicated with a water inlet of the circulating pump 32, a water outlet of the circulating pump 32 is communicated with the first water return pipe 331, one end of the first water return pipe 331 far away from the circulating pump 32 is communicated with the air unit 11, one end of the second water return pipe 332 is communicated with the air unit 11, and the other end of the second water return pipe 332 is communicated with the water tower 2. The circulating pipeline system forms a complete closed-loop circulating loop, power is provided for water flow circulating in the pipeline through the circulating pump 32, the water flow in the pipeline is promoted to flow, and the water flow carries heat to circulate between the air unit 11 and the water tower 2, so that the purposes of refrigeration and heating are achieved.

Referring to fig. 2, a filtering device 4 is communicated between one end of the first water inlet pipe 311 away from the water tower 2 and one end of the second water inlet pipe 312 away from the circulating pump 32, the filtering device 4 is used for filtering water flowing into the circulating pump 32, and the filtering device 4 includes a connecting pipe 41 and a fixing pipe 42. One end of the first water inlet pipe 311, which is far away from the water tower 2, and one end of the second water inlet pipe 312, which is far away from the circulating pump 32, are both communicated with a fixed pipeline 42, two ends of the fixed pipeline 42 are arranged in a penetrating manner, and the first water inlet pipe 311 and the second water inlet pipe 312 are both positioned in the middle of the fixed pipeline 42; two connecting pipelines 41 are arranged, and the two connecting pipelines 41 are respectively arranged at two sides of the fixed pipeline 42 and communicated with the fixed pipeline 42; both ends of the fixed pipe 42 are provided with first valves 43 for closing the openings of the fixed pipe 42.

Referring to fig. 2 and 3, the end of the fixed pipeline 42 is rotatably sleeved with a connecting sleeve 5 along the axis direction of the fixed pipeline 42, the inner diameter of the connecting sleeve 5 is matched with the outer diameter of the fixed pipeline 42, an inner thread 51 is formed on the inner wall of the connecting sleeve 5, an outer thread 411 matched with the inner thread 51 is formed on the outer wall of the end of the connecting pipeline 41, an insertion pipe 412 is welded at one end of the connecting pipeline 41 close to the fixed pipeline 42, and the outer diameter of the insertion pipe 412 is matched with the inner diameter of the fixed pipeline 42.

When the connecting pipeline 41 is installed, after the internal thread 51 is meshed with the external thread 411, the connecting pipeline 41 moves towards the fixed pipeline 42 along with the rotation of the connecting sleeve 5, and then the insertion pipe 412 is inserted into the fixed pipeline 42, so that a water blocking line at the connecting seam between the fixed pipeline 42 and the connecting pipeline 41 is improved, and the sealing performance at the connecting seam between the connecting pipeline 41 and the fixed pipeline 42 is effectively improved.

Referring to fig. 3 and 4, a sliding groove 44 is formed in the outer wall of the fixed pipeline 42 along the axial direction of the fixed pipeline 42, the sliding groove 44 is formed with a plurality of sliding grooves 44, and the plurality of sliding grooves 44 are uniformly distributed on the outer wall of the fixed pipeline 42 along the circumferential direction of the fixed pipeline 42. A slide block 45 is slidably mounted in the slide groove 44 along the axial direction of the fixed pipeline 42, and the height of the slide block 45 is higher than the depth of the slide groove 44.

As an embodiment of the slide groove 44 of the embodiment of the present application, two slide grooves 44 are provided, and the two slide grooves 44 are disposed in axial symmetry with respect to the axis of the fixed pipe 42. As another embodiment of the chute 44 in the embodiment of the present application, three, four or more chutes 44 may be provided, and the specific opening number is determined according to the requirement and the production cost in the actual working process.

Referring to fig. 2 and 4, the end of the fixed pipe 42 is provided with a sliding sleeve 46 along the axial direction of the fixed pipe 42, and the inner diameter of the sliding sleeve 46 is matched with the outer diameter of the fixed pipe 42. A strip-shaped groove 461 is arranged on the inner wall of the sliding sleeve 46 along the axial direction of the fixed pipeline 42, and one end of the sliding block 45 extending out of the sliding groove 44 is positioned in the strip-shaped groove 461 and is connected with the sliding sleeve 46 in a sliding manner.

Referring to fig. 3 and 4, an annular groove 462 is formed in one end of the sliding sleeve 46, which is far away from the first valve 43, along the circumferential direction of the sliding sleeve 46, an annular block 52 is arranged at one end of the connecting sleeve 5, which is close to the first valve 43, along the circumferential direction of the connecting sleeve 5, the annular block 52 and the connecting sleeve 5 are welded and fixed, and the annular block 52 is slidably installed in the annular groove 462 along the circumferential direction of the annular groove 462 and is connected with the sliding sleeve 46 in a sliding manner.

As an embodiment of the annular groove 462 and the annular block 52 according to the embodiment of the present application, referring to fig. 4, the annular groove 462 is provided as a T-shaped groove, and the annular block 52 is provided as a T-shaped block; as another example of the annular groove 462 and the annular block 52 of the present embodiment, the annular groove 462 may be configured as a dovetail groove, and the annular block 52 may be configured as a dovetail block.

Referring to fig. 4, a first elastic element 47 is disposed in the slot 461, the first elastic element 47 is used for driving the sliding block 45 to move away from the opening of the fixed pipe 42, and the first elastic element 47 comprises a compression spring. One end of the pressure spring is welded and fixed with the side wall of the strip-shaped groove 461 far away from the opening of the fixed pipeline 42, and the other end of the pressure spring is welded and fixed with the side wall of the sliding block 45.

When the connecting pipe 41 is installed, the connecting sleeve 5 and the sliding sleeve 46 are firstly driven to move towards the direction away from the opening of the fixed pipe 42, so that the end of the fixed pipe 42 is exposed, then the connecting pipe 41 is driven to move towards the fixed pipe 42, the inserting pipe 412 is inserted into the fixed pipe 42, then the connecting sleeve 5 is continuously screwed to rotate, so that the connecting sleeve 5 and the sliding sleeve 46 are driven to move towards the connecting pipe 41, in the process, the sliding block 45 is firstly positioned at one end, close to the port of the fixed pipe 42, in the strip-shaped groove 461 under the action of the first elastic piece 47, along with the movement of the sliding sleeve 46, the side wall, close to the opening end of the fixed pipe 42, of the sliding block 45 is abutted against the side wall of the sliding groove 44, so that the position of the sliding block 45 is limited, at the moment, the connecting sleeve 5 is continuously rotated, the sliding sleeve 46 is driven to move, and the first elastic piece 47 is extruded, so that the port of the connecting pipe 41 is tightly pressed on the port of the fixed pipe 42, thereby reducing the water seepage in the working process.

Referring to fig. 2 and 5, a filter screen 6 is arranged in the connecting pipe 41, and the diameter of the filter screen 6 is matched with the inner diameter of the connecting pipe 41; the boss 7 is coaxially and fixedly sleeved on the connecting pipeline 41, the boss 7 and the connecting pipeline 41 are fixedly welded, and the diameter of the boss 7 is larger than that of the connecting pipeline 41. Offer on the lateral wall of boss 7 with the inside mounting groove 71 that communicates of connecting tube 41, mounting groove 71 is used for supplying filter screen 6 to pass, installs installation piece 72 in the mounting groove 71, installation piece 72 and mounting groove 71's shape looks adaptation, and filter screen 6 welds in the inside one side of installation piece 72 near connecting tube 41.

Referring to fig. 5 and 6, a mounting hole 73 is formed in a side wall of the mounting block 72 along the axial direction of the connecting pipe 41 along a direction perpendicular to a plane in which the side wall is located, and the mounting hole 73 is a rectangular hole. A limiting block 74 is slidably mounted in the mounting hole 73 along the axis of the connecting pipe 41, the shape and size of the limiting block 74 are matched with those of the mounting hole 73, and a limiting hole 75 for the limiting block 74 to be inserted is formed in the side wall of the mounting groove 71.

Referring to fig. 6, a driving member 8 for driving the stopper 74 to move is disposed on the mounting block 72, and the driving member 8 includes a driving block. The top of the mounting block 72 is provided with a driving groove 81 communicated with the mounting hole 73, the driving plate is slidably mounted in the driving groove 81 along the axial direction of the connecting pipe 41, one end of the driving plate extends out of the driving groove 81, and the other end of the driving plate is welded and fixed with the limiting block 74. The driving block is shifted to drive the limiting block 74 to be inserted into or separated from the limiting hole 75, so that the purposes of mounting the filter screen 6 and dismounting the filter screen 6 are achieved.

Referring to fig. 6, a second elastic member 82 is arranged in the driving groove 81, the second elastic member 82 is used for driving the limit block 74 to move towards a direction away from the mounting hole 73, the second elastic member 82 includes a pressure spring, the pressure spring is located between the two driving plates, and two ends of the pressure spring are welded and fixed with the side walls of the two driving plates, which are close to each other, respectively.

After the installation of the installation block 72 and the filter screen 6 is completed, the drive plate moves towards the direction away from each other under the action of the elastic piece, and then the limit block 74 is driven to be inserted into the limit hole 75, the separation caused by the vibration of the machine can be effectively avoided, and the reliability of the device in the use process is improved.

Referring to fig. 2 and 5, the second inlet pipe 312 is provided with a second valve 34 for opening and closing the second inlet pipe 312, and the connecting pipe 41 is provided with a through hole 9 communicating with the inside of the connecting pipe 41.

Referring to fig. 5, a sealing member 91 is provided on the connection pipe 41, the sealing member 91 is used to seal the through hole 9, and the sealing member 91 may be provided as a rubber stopper or a wooden stopper.

Referring to fig. 5, the sealing member 91 is a rubber plug, and a pull ring 92 for pulling the rubber plug is fixedly bonded to an end of the rubber plug away from the connecting pipe 41. When the rubber plug needs to be driven to move towards the direction far away from the connecting pipeline 41, the pull ring 92 is pulled to drive the rubber plug to move, so that the worker can drive the rubber plug to move conveniently.

When the different connecting pipelines 41 are replaced to supply water to the second water inlet pipe 312, the second valve 34 is firstly closed, then the sealing member 91 on the connecting pipeline 41 which is not filled with water is contacted to seal the through hole 9, then the two first valves 43 are all opened, at the moment, the two connecting pipelines 41 are communicated, at the moment, a worker manually presses the water in the water tower 2 into the two connecting pipelines 41 through an external water pump, so that the air in the two connecting pipelines 41 is completely discharged through the through hole 9, then the through hole 9 is sealed through the sealing member 91, the first valve 43 which is opened firstly is closed, the replacement of the connecting pipeline 41 is completed, then the connecting pipeline 41 can be taken down from the fixed pipeline 42, the cleaning of the connecting pipeline 41 and the filter screen 6 is carried out, in the replacement process, the gas entering the connecting pipeline 41 is effectively reduced, and the gas entering the circulating pump 32 is reduced, the noise generated by the circulating pump 32 in the working process is reduced, and the service life of the circulating pump 32 is further prolonged.

The implementation principle of the pump circulation system of the cold and hot central air conditioner in the embodiment of the application is as follows:

when using central air conditioning to refrigerate, at first cool off the water in the water tower 2, start circulating pump 32 afterwards, with the cooling water suction first inlet tube 311 in the water tower 2, first inlet tube 311 filters the cooling water through filter equipment 4 afterwards, thereby filter incrustation scale and impurity in the cooling water, the cooling water through filtering gets into circulating pump 32 through second inlet tube 312 afterwards, later pump into in the air unit 11 through circulating pump 32, then air unit 11 produces cold wind and gets into air pipe 1, can refrigerate the cooling to the room, the heating process is the same; in this process, the rivers that get into in the circulating pump 32 at first filter through filter equipment 4, can reduce incrustation scale and the impurity that gets into in the circulating pump 32 effectively to show the life who has improved circulating pump 32, reduced circulating pump 32's cost of maintenance effectively, have good practicality.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a cold and hot central air conditioning pump circulation system, includes air pipe (1), water tower (2) and air unit (11), the intercommunication has circulating line subassembly (3), its characterized in that between water tower (2) and air unit (11): circulating line system includes inlet channel (31), circulating pump (32) and return water pipeline (33), the delivery port and return water pipeline (33) intercommunication of circulating pump (32), inlet channel (31) are including first inlet tube (311) and second inlet tube (312), the one end that first inlet tube (311) was kept away from in second inlet tube (312) communicates with the water inlet of circulating pump (32), the intercommunication has filter equipment (4) between first inlet tube (311) and second inlet tube (312), filter equipment (4) are used for filtering the rivers that get into in circulating pump (32).

2. A cold and hot central air-conditioning pump circulation system according to claim 1, wherein: filter equipment (4) are including connecting tube (41), the one end intercommunication of water tower (2) is kept away from with first inlet tube (311) to the one end of connecting tube (41), and circulating pump (32) is kept away from with second inlet tube (312) to the other end, be provided with filter screen (6) in connecting tube (41), the diameter of filter screen (6) and the internal diameter looks adaptation of connecting tube (41).

3. A cold and hot central air-conditioning pump circulation system according to claim 2, wherein: one end that circulating pump (32) were kept away from in first inlet tube (311) one end and second inlet tube (312) of keeping away from water tower (2) all communicate and have fixed pipeline (42), the both ends of fixed pipeline (42) run through the setting, connecting tube (41) are provided with two, the both ends of setting at fixed pipeline (42) can be dismantled in connecting tube (41), the both ends of fixed pipeline (42) all are provided with and are used for sealing open-ended first valve (43).

4. A cold and hot central air-conditioning pump circulation system according to claim 3, wherein: the end of the fixed pipeline (42) is rotatably sleeved with a connecting sleeve (5) along the axis direction of the fixed pipeline (42), an internal thread (51) is arranged on the inner wall of the connecting sleeve (5), an external thread (411) is arranged on the outer wall of the end of the connecting pipeline (41), and the internal thread (51) is matched with the external thread (411).

5. A cold and hot central air-conditioning pump circulation system according to claim 4, wherein: the tip of fixed pipeline (42) is equipped with sliding sleeve (46) along the axis direction sliding sleeve (46) of fixed pipeline (42), adapter sleeve (5) are connected with sliding sleeve (46) rotation, be provided with first elastic component (47) on fixed pipeline (42), first elastic component (47) are used for driving sliding sleeve (46) and move towards the direction of keeping away from fixed pipeline (42) open-ended.

6. A cold and hot central air-conditioning pump circulation system according to claim 5, wherein: the utility model discloses a pipeline fixing device, including fixed pipeline (42), fixed pipeline (42) and first elastic component (47), the axis direction of edge fixed pipeline (42) has seted up spout (44) on the outer wall of fixed pipeline (42) tip, it is provided with slider (45) to slide in spout (44), strip groove (461) have been seted up along the direction of fixed pipeline (42) axis on the inner wall of sliding sleeve (46), slider (45) keep away from the one end of spout (44) and lie in strip groove (461) and with sliding sleeve (46) sliding connection, first elastic component (47) are used for driving about slider (45) and move towards the direction that is close to fixed pipeline (42) open-ended.

7. A cold-hot central air-conditioning pump circulation system according to any one of claims 2 to 6, wherein: fixed cover is equipped with boss (7) on connecting tube (41), set up on the lateral wall of boss (7) with mounting groove (71) of the inside intercommunication of connecting tube (41), mounting groove (71) are used for supplying filter screen (6) to pass, be provided with installation piece (72) in mounting groove (71), installation piece (72) and filter screen (6) fixed connection, installation piece (72) can be dismantled with boss (7) and be connected.

8. A cold and hot central air-conditioning pump circulation system according to claim 7, wherein: mounting hole (73) have been seted up on the lateral wall of installation piece (72), it is provided with stopper (74) to slide in mounting hole (73), offer on the lateral wall of mounting groove (71) and supply stopper (74) male spacing hole (75), be provided with second elastic component (82) on installation piece (72), second elastic component (82) are used for ordering about stopper (74) and move towards the direction of keeping away from mounting hole (73), be provided with driving piece (8) that are used for driving stopper (74) motion on installation piece (72).

9. A cold and hot central air-conditioning pump circulation system according to any one of claims 3 to 6, wherein: the water inlet pipe is characterized in that a second valve (34) used for opening and closing the second water inlet pipe (312) is arranged on the second water inlet pipe (312), a through hole (9) communicated with the inside of the connecting pipeline (41) is formed in the connecting pipeline (41), a sealing element (91) is arranged on the connecting pipeline (41), and the sealing element (91) is used for sealing the through hole (9).

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