CN213119457U - Improved central air-conditioning system - Google Patents
Improved central air-conditioning system Download PDFInfo
- Publication number
- CN213119457U CN213119457U CN202021800967.5U CN202021800967U CN213119457U CN 213119457 U CN213119457 U CN 213119457U CN 202021800967 U CN202021800967 U CN 202021800967U CN 213119457 U CN213119457 U CN 213119457U
- Authority
- CN
- China
- Prior art keywords
- water
- jet flow
- pipe
- pump
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an improved central air conditioning system, a transition water tank provided with a water inlet, a water outlet and an exhaust port is connected between a filter and a water pump component, the water pump component comprises an impeller pump and a jet flow pumping supercharger, the impeller pump comprises a pump body and an impeller, an arc-shaped partition plate is fixed in a semicircular area close to the water outlet in the pump body, and the semicircular area is divided into two diversion cavities by the arc-shaped partition plate; the jet flow back-pumping supercharger comprises a jet flow pipe and a back-pumping chamber surrounding the jet flow pipe, one end of the jet flow pipe is connected with a water outlet of the pump body, the other end of the jet flow pipe is connected with a pipeline between the one-way valve and the water pump assembly, and a plurality of inclined notches communicated with the back-pumping chamber are formed in the jet flow pipe. The utility model discloses an increase the transition water tank, can be rapidly with system's air exhaust, increased the flow of system water, cooperation water pump subassembly, efficiency is showing and is improving, and it is obvious to have improved heat exchange efficiency energy-conserving effect simultaneously.
Description
Technical Field
The utility model relates to a central air conditioning technology field, concretely relates to improved generation central air conditioning system.
Background
The application field of the central air conditioner is very wide, for example, in large-scale occasions such as hotels, office buildings and the like, the central air conditioning system consists of a cold and heat source system and a plurality of air conditioning systems, the system is different from the traditional refrigerant type air conditioner, and the air is intensively treated to meet the comfort requirement; the principle of liquid gasification refrigeration is adopted to provide the required cold energy for the air conditioning system so as to offset the cold load of the indoor environment; the heating system provides the air conditioning system with the required heat to offset the indoor ambient heat load.
The central air conditioner mainly comprises a refrigerating system and a water cooling system, wherein indoor units are respectively arranged in each room of the central air conditioner, the refrigerating system is responsible for providing indoor refrigeration, the water cooling system forms a cooling water circulation system through a cooling tower and a cooling water pump to cool a machine in the refrigerating system, and some energy-saving central air conditioners are also provided with a chilled water recovery system in the refrigerating system.
How to effectively utilize limited energy is always a pursuit target in the field of energy conservation, and the most studied at present is a frequency conversion energy-saving technology, but the frequency conversion energy-saving technology generally has an effect in spring and autumn with low energy consumption.
In addition, in the central air-conditioning water system, when the system is operated, the air needs to be discharged, the common method is to install an automatic exhaust valve at the highest point of the water system for exhausting, because the system is in closed circulation, the connection water path between an indoor air disk and a host is complex, and the water vapor moving at high speed in a pipeline is not easy to discharge, the central air-conditioning system is often poor in heat exchange, high-pressure and low-pressure faults are generated, and the water pump generates a cavitation phenomenon.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide an improved generation central air conditioning system, through increasing the transition water tank, can be rapidly with system's air exhaust, increased the flow of system's water, cooperation water pump subassembly, efficiency is showing and is improving, and it is obvious to have improved heat exchange efficiency energy-conserving effect simultaneously.
The utility model discloses a realize through following technical scheme:
the utility model provides an improved generation central air conditioning system, includes refrigerating unit, flow switch, user's load, filter, water pump assembly, check valve, manometer and thermometer, connects gradually and constitutes circulation circuit, its characterized in that by the pipeline between each subassembly:
a transition water tank with an exhaust port at the top is connected between the filter and the water pump assembly through a pipeline, a water inlet connected with the filter is arranged at the upper part of one side of the transition water tank, and a water outlet connected with the water pump assembly is arranged at the lower part of the other side of the transition water tank;
the water pump assembly comprises an impeller pump and a jet flow back-pumping supercharger, the impeller pump comprises a pump body and an impeller rotatably arranged in the pump body, an arc-shaped partition plate is fixed in a semicircular area close to the water outlet in the pump body, and the semicircular area is divided into two flow guide cavities by the arc-shaped partition plate; the jet flow back-pumping supercharger comprises a jet flow pipe and a back-pumping chamber surrounding the jet flow pipe, one end of the jet flow pipe is connected with a water outlet of the pump body, the other end of the jet flow pipe is connected with a pipeline between the one-way valve and the water pump assembly, and a plurality of inclined notches communicated with the back-pumping chamber are formed in the jet flow pipe.
Furthermore, a water replenishing port is formed in the transition water tank and is connected with a water replenishing pipe.
The water replenishing pipe is used for periodically replenishing water quantity to the transition water tank and is used for avoiding water shortage of the system.
Further, the impeller comprises arc-shaped blades and circular steel plates fixed on two side faces of the arc-shaped blades, and the diameter of each circular steel plate is the same as that of a circle formed by rotation of the impeller.
Furthermore, the upper end of the arc-shaped partition plate is positioned 10-20cm below the water outlet of the pump body, and the lower end of the arc-shaped partition plate is positioned on a connecting line between the rotation center of the impeller and the upper end of the arc-shaped partition plate.
Furthermore, the oblique cuts are arranged in the length direction of the jet pipe at intervals, the oblique lines of the oblique cuts and the water flow direction in the jet pipe form obtuse angles alpha, and alpha is more than or equal to 135 degrees and less than or equal to 165 degrees.
Furthermore, the pumping-back chamber is a sleeve sleeved outside the jet pipe, one end of the sleeve close to the pump body water outlet is fixed with the jet pipe in a sealing mode through a first annular sealing plate, the other end of the sleeve far away from the pump body water outlet is fixed with the jet pipe through a second annular sealing plate, and a through backflow hole is formed in the annular sealing plate.
Further, the upper end that the pump body delivery port was kept away from to the sleeve pipe is the slot end, and the lower extreme that is close to the pump body delivery port is wide mouthful end, wherein: the difference of the inner diameters of the narrow opening end and the wide opening end is 3-5 cm.
Further, the end of the jet pipe for fixing the second annular sealing plate is connected with a pipeline between the one-way valve and the water pump assembly in a sealing mode through a connector, a horn-shaped cavity is formed in the connector, and the large opening end of the cavity is located at one end of the jet pipe.
The utility model has the advantages that:
through increasing the transition water tank, guaranteed that the water pump import has no bubble, utilize the gas vent can be totally discharged system's air fast to make system's return water pressure be zero, increased the flow of system's water, make the reliable work of system, improved heat exchange efficiency, the moisturizing mouth is connected the moisturizing pipe, has made things convenient for system's moisturizing.
The common paddle pump is changed into the impeller pump, so that the water yield of the pump body is increased by more than half compared with the common water pump, the jet flow back pumping supercharger at the water outlet is utilized to compensate the loss of water pressure, the cooling effect of the air conditioner is not influenced by the work of the water pump under the condition of reducing the power of the motor, and the energy-saving effect is achieved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the reclaimed water pump assembly of the present invention;
fig. 3 is a schematic structural view of a second annular sealing plate according to the present invention.
Shown in the figure:
1. the refrigerating unit, 2, thermometer, 3, manometer, 4, check valve, 5, water pump assembly, 6, moisturizing pipe, 7, delivery port, 8, transition water tank, 9, the gas vent, 10, the water inlet, 11, user's load, 12, the pipeline, 13, flow switch, 14, the filter, 15, the scarf, 16, efflux pumper, 17, the back-pumping room, 18, the efflux pipe, 19, the impeller, 20, the arc baffle, 21, the impeller pump, 22, the cavity, 23, first annular seal plate, 24, pump body delivery port, 25, second annular seal plate, 26, the connector, 27, wide mouthful end, 28, narrow mouth, 29, water conservancy diversion chamber, 30, the backward flow hole.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
An improved central air-conditioning system comprises a refrigerating unit 1, a flow switch 13, a user load 11, a filter 14, a water pump assembly 5, a one-way valve 4, a pressure gauge 3 and a thermometer 2, wherein all the assemblies are sequentially connected through a pipeline 12 to form a circulation loop.
A transition water tank 8 with an exhaust port 9 arranged at the top is connected between the filter 14 and the water pump assembly 5 through a pipeline, a water inlet 10 connected with the filter 14 is arranged at the upper part of one side of the transition water tank 8, and a water outlet 7 connected with the water pump assembly 5 is arranged at the lower part of the other side of the transition water tank 8. The transition water tank 8 is provided with a water replenishing port and is connected with a water replenishing pipe 6. In order to clean the transition water tank 11, a drain outlet is arranged at the upper part of the transition water tank 11 and is connected with a drain pipe.
The water pump assembly 5 comprises an impeller pump 21 and a jet flow back-pumping supercharger 16, the impeller pump 21 comprises a pump body and an impeller 19 rotatably installed in the pump body, the impeller 19 comprises arc-shaped blades and circular steel plates fixed on two side faces of the arc-shaped blades, and the diameter of each circular steel plate is the same as that of a circle formed by rotation of the impeller. In the utility model, the impeller is composed of 8-16 arc-shaped blades, and the rotating diameter of the impeller is 20 cm. The other structure of the vane pump is the same as that of the water pump in the prior art.
An arc-shaped partition plate 20 is fixed in a semicircular area close to the water outlet 24 in the pump body, and the semicircular area is divided into two diversion cavities 29 through the arc-shaped partition plate 20; the upper end of the arc-shaped clapboard 20 is positioned at the position of 10-20cm below the water outlet 24 of the pump body, and the lower end of the arc-shaped clapboard 20 is positioned on the connecting line of the rotating center of the impeller 19 and the upper end of the arc-shaped clapboard 20. As an embodiment of the present invention, the upper end of the arc-shaped partition plate 20 is located 15cm below the pump body water outlet 24.
The jet flow back-pumping supercharger 16 comprises a jet flow pipe 18 and a back-pumping chamber 17 surrounding the jet flow pipe, one end of the jet flow pipe 18 is connected with a water outlet 24 of the pump body, the other end of the jet flow pipe 18 is connected with a pipeline between the one-way valve 4 and the water pump assembly 5, and the jet flow pipe 18 is provided with a plurality of inclined notches 15 communicated with the back-pumping chamber 17. The inclined cuts 15 are arranged in the length direction of the jet pipe 18 at intervals, and the oblique line of the inclined cuts 15 forms an obtuse angle alpha with the water flow direction in the jet pipe 18, wherein the angle alpha is more than or equal to 135 degrees and less than or equal to 165 degrees. In the present invention, the obtuse angle α is 150 °.
The back-pumping chamber 17 is a sleeve sleeved outside the jet pipe 18, one end of the sleeve close to the pump body water outlet 24 is fixed with the jet pipe 18 in a sealing mode through a first annular sealing plate 23, the other end of the sleeve far away from the pump body water outlet 24 is fixed with the jet pipe 18 through a second annular sealing plate 25, and a through backflow hole 30 is formed in the second annular sealing plate 25.
The upper end that the sleeve pipe kept away from pump body delivery port 24 is the narrow mouth end 28, and the lower extreme that is close to pump body delivery port 24 is wide mouth end 27, wherein: the difference between the inner diameters of the narrow opening end 28 and the wide opening end 27 is 4 cm.
The end of the jet pipe 18, which is fixed to the second annular sealing plate 25, is connected with the pipeline between the check valve 4 and the water pump assembly 5 in a sealing manner through a connector 26, a horn-shaped cavity 22 is formed in the connector 26, and the large opening end of the cavity 22 is located at one end of the jet pipe 18. In order to facilitate the connection between the jet pipe 18 and the pump body, the water outlet 24 of the pump body is connected with the lower end of the jet pipe 18 through a flange.
The utility model discloses a theory of operation:
when the air conditioning system is operated for the first time, air contained in the system forms cavitation erosion on the water pump assembly 5 to affect heat exchange of the heat exchanger, so that the flow protection action of the system is realized, the evaporator is supercooled and frozen, when the impeller pump 21 is electrified and operated, water circulates in the system, the water outlet of the transition water tank 8 is arranged at the bottom of the transition water tank, the transition water tank 8 is in a full water and airless state and is sent into the impeller pump 21, the impeller pump 21 is driven by a motor with the same power to pump more water and has a small lift, an additional pressure is generated by the power of the fluid through the increase of the jet flow back-pumping pressurizer 16, as shown in figure 2, an arrow indicates the water flow direction, when water in the jet flow pipe 18 flows at a higher flow speed, additional suction force is generated at the inclined notch 15 of the jet flow pipe 18, so that the water is sucked into the jet flow pipe 18 from the back-pumping chamber 17 through the inclined notch, can compensate hydraulic loss, and then improve the work efficiency of water pump, can reduce the power of motor and guarantee the stability of water pump simultaneously and do not influence the cooling effect of air conditioner, energy-concerving and environment-protective.
After being pressurized by the impeller pump 21, the cold (hot) water is sent to the central air-conditioning refrigerating unit 1 for refrigeration or heating through the one-way valve 4, and the cold (hot) water is sent out from the central air-conditioning refrigerating unit 1 and is sent to a heat exchanger at a user load 12 end through the flow switch 14 for use by a user.
If there is gas in the system, the flow switch 14 will act, the evaporator of the central air-conditioning refrigerating unit 1 will be supercooled and frozen, after the heat exchange of the cold (hot) water in the user load, the system water and gas pass through the filter 11 and enter the transition water tank 8, the water inlet 10 of the transition water tank 8 generates water-gas separation, the gas is discharged from the gas outlet 9, and when the system is lack of water, the water is supplemented through the water supplementing pipe 6.
Through transition water tank 8 can discharge water fast, simultaneously with totally enclosed system ratio, owing to have transition water tank 8, the system becomes open, and impeller pump 21's inlet pressure is zero, has increased impeller pump 21's pressure differential, increases the flow of water, has improved the heat transfer of entire system.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides an improved generation central air conditioning system, includes refrigerating unit, flow switch, user's load, filter, water pump assembly, check valve, manometer and thermometer, connects gradually and constitutes circulation circuit, its characterized in that by the pipeline between each subassembly:
a transition water tank with an exhaust port at the top is connected between the filter and the water pump assembly through a pipeline, a water inlet connected with the filter is arranged at the upper part of one side of the transition water tank, and a water outlet connected with the water pump assembly is arranged at the lower part of the other side of the transition water tank;
the water pump assembly comprises an impeller pump and a jet flow back-pumping supercharger, the impeller pump comprises a pump body and an impeller rotatably arranged in the pump body, an arc-shaped partition plate is fixed in a semicircular area close to the water outlet in the pump body, and the semicircular area is divided into two flow guide cavities by the arc-shaped partition plate; the jet flow back-pumping supercharger comprises a jet flow pipe and a back-pumping chamber surrounding the jet flow pipe, one end of the jet flow pipe is connected with a water outlet of the pump body, the other end of the jet flow pipe is connected with a pipeline between the one-way valve and the water pump assembly, and a plurality of inclined notches communicated with the back-pumping chamber are formed in the jet flow pipe.
2. The improved central air conditioning system of claim 1, wherein: the transition water tank is provided with a water replenishing port and is connected with a water replenishing pipe.
3. The improved central air conditioning system of claim 1, wherein: the impeller comprises arc-shaped blades and circular steel plates fixed on two side faces of the arc-shaped blades, and the diameter of each circular steel plate is the same as that of a circle formed by rotation of the impeller.
4. The improved central air conditioning system of claim 1, wherein: the upper end of the arc-shaped partition plate is positioned 10-20cm below the water outlet of the pump body, and the lower end of the arc-shaped partition plate is positioned on a connecting line of the rotation center of the impeller and the upper end of the arc-shaped partition plate.
5. The improved central air conditioning system of claim 1, wherein: the oblique cuts are arranged in the length direction of the jet pipe at intervals, and the oblique lines of the oblique cuts and the water flow direction in the jet pipe form obtuse angles alpha which are more than or equal to 135 degrees and less than or equal to 165 degrees.
6. The improved central air conditioning system of claim 1, wherein: the back-pumping chamber is a sleeve sleeved outside the jet pipe, one end of the sleeve close to the water outlet of the pump body is fixed with the jet pipe in a sealing mode through a first annular sealing plate, the other end of the sleeve far away from the water outlet of the pump body is fixed with the jet pipe through a second annular sealing plate, and a through back-flowing hole is formed in the annular sealing plate.
7. An improved central air conditioning system as set forth in claim 6, wherein: the upper end that the pump body delivery port was kept away from to the sleeve pipe is the slot end, and the lower extreme that is close to the pump body delivery port is the slot end, wherein: the difference of the inner diameters of the narrow opening end and the wide opening end is 3-5 cm.
8. An improved central air conditioning system as set forth in claim 6, wherein: the end part of the jet pipe for fixing the second annular sealing plate is connected with a pipeline between the check valve and the water pump assembly in a sealing manner through a connector, a horn-shaped cavity is formed in the connector, and the large opening end of the cavity is located at one end of the jet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800967.5U CN213119457U (en) | 2020-08-26 | 2020-08-26 | Improved central air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800967.5U CN213119457U (en) | 2020-08-26 | 2020-08-26 | Improved central air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213119457U true CN213119457U (en) | 2021-05-04 |
Family
ID=75656084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021800967.5U Active CN213119457U (en) | 2020-08-26 | 2020-08-26 | Improved central air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213119457U (en) |
-
2020
- 2020-08-26 CN CN202021800967.5U patent/CN213119457U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202403339U (en) | Energy-saving air conditioning system | |
| CN105423413B (en) | A kind of refrigeration system of computer room | |
| CN102494442A (en) | Direct expansion type mine return air source heat pump system and operation method thereof | |
| CN201764749U (en) | Simple, efficient and reliable air conditioner water heater | |
| CN213119457U (en) | Improved central air-conditioning system | |
| CN201429161Y (en) | Integral water resource air conditioner with heat pump | |
| CN106839799B (en) | Condenser vacuumizing system integrated device and vacuum maintaining method and application thereof | |
| CN207280002U (en) | Air source heat pump compressor air-discharging protective device | |
| CN202361697U (en) | Direct expansion type mine return air source heat pump system | |
| CN205156210U (en) | Take auxiliary cold source's ocean refrigerated water concentrated cooling system | |
| CN112963977A (en) | Centrifugal compressor and water chilling unit | |
| CN209445529U (en) | Barrel pump is distributed direct-expansion type heat source tower | |
| CN111741659A (en) | Gravity liquid supply backflow type phase change heat transfer system with cold source | |
| CN105402959A (en) | Forced convective circulating flooded evaporator refrigerating system driven by recovered throttling loss | |
| CN202371929U (en) | One-machine three-body air conditioner water heater system | |
| CN206593504U (en) | A kind of jetting stream vacuum system transformed for energy saving for power plants | |
| CN105240970A (en) | Sea-chilled-water concentrated cold supplying system with auxiliary cold source and concentrated cold supplying method | |
| CN204705218U (en) | A kind of equipment improving water jet system efficiency and condenser vacuum | |
| CN214620158U (en) | Centrifugal compressor and water chilling unit | |
| CN212573359U (en) | Power liquid supply reflux type phase change heat transfer system with cold source | |
| CN207945715U (en) | A kind of trilogy supply heat pump unit | |
| CN220168159U (en) | Water ring type vacuum pump and Roots vacuum pump coupling back pressure reducing energy-saving system | |
| CN217207000U (en) | Freezing water pump and impeller thereof | |
| CN218722610U (en) | Dry type cooling system | |
| CN219733643U (en) | Optimizing device for sealing water cooling mode of water ring type vacuum pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |