CN209763529U - Double-system water chilling unit - Google Patents
Double-system water chilling unit Download PDFInfo
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- CN209763529U CN209763529U CN201920223466.6U CN201920223466U CN209763529U CN 209763529 U CN209763529 U CN 209763529U CN 201920223466 U CN201920223466 U CN 201920223466U CN 209763529 U CN209763529 U CN 209763529U
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- heat exchange
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- frequency compressor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
Two system cooling water set, including two sets of refrigeration assemblies, every set of refrigeration assembly includes condensation evaporation system and supplementary liquid system that removes, condensation evaporation system includes the condenser, fan and evaporimeter, and the inspiratory air current of fan can pass through the condenser, and the evaporimeter includes evaporimeter casing and second heat exchange tube, the utility model discloses an utilize two sets of refrigeration assemblies to combine together with a variable frequency compressor and several constant frequency compressor respectively, make a variable frequency compressor and several constant frequency compressor can jointly produce the cooling water to make cooling water set have bigger power adjustable range, two sets of refrigeration assemblies can make variable frequency compressor and constant frequency compressor can the independent operation simultaneously, avoid variable frequency compressor and constant frequency compressor to produce too much mutual influence after operation in-process or damage.
Description
Technical Field
The utility model relates to a water chilling unit, more specifically a dual system water chilling unit says so.
Background
The existing water chilling unit generally adopts 1 or more compressors to be used in combination, wherein the normal operation of the whole set of equipment can be influenced by the fault of any one compressor or the leakage of refrigerant. In addition, when the variable-frequency compressor and the fixed-frequency compressor are used in a combined mode, the problem that oil return of the compressors is uneven and the like due to different rotating speeds of the compressors in a refrigeration system is solved, and the problem is solved well due to the fact that the variable-frequency compressor and the fixed-frequency compressor are independent of each other in the dual-system water chilling unit.
Disclosure of Invention
The utility model aims at providing a dual system cooling water set can utilize two sets of refrigeration assemblies to combine together with a variable frequency compressor and several fixed frequency compressor respectively, makes a variable frequency compressor and several fixed frequency compressor can jointly produce the cooling water to make cooling water set have bigger power adjustable range, two sets of refrigeration assemblies can make variable frequency compressor and fixed frequency compressor can the independent operation simultaneously, avoid variable frequency compressor and fixed frequency compressor to produce too much influence each other in the operation process.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
1. A double-system water chilling unit comprises two sets of refrigeration assemblies, each set of refrigeration assembly comprises a condensation evaporation system and an auxiliary liquid removal system, the condensation evaporation system comprises a condenser, a fan and an evaporator, airflow sucked by the fan can pass through the condenser, the evaporator comprises an evaporator shell and a second heat exchange tube, the second heat exchange tube is installed inside the evaporator shell, a shell of the evaporator shell is connected with a water outlet tube and a water inlet tube, the inside of one end of the water outlet tube and the inside of one end of the water inlet tube are both communicated with the inside of the evaporator shell, a pipeline at an inlet of the condenser is provided with two ports, one port is a first connecting end of the liquid removal system, the other port is communicated with one end of the condenser, the inside of the other end of the second heat exchange tube is communicated with the inside of the liquid removal device shell, the liquid removal device shell is provided with two gas guide tubes, one end of each of the two gas guide pipes is located on the upper portion of the inner side of the liquid remover shell, one gas guide pipe is a gas outlet of the second heat exchange pipe, the other gas guide pipe is connected with the compressor suction pipe, an auxiliary liquid removing system is installed between the compressor suction pipe and the evaporator shell and comprises a first heat exchange pipe, the interiors of two ends of the first heat exchange pipe are respectively connected with the compressor exhaust pipe and the compressor suction pipe, and the middle of the first heat exchange pipe is located on the lower portion of the inner side of the liquid remover shell so as to heat refrigerant liquid in the liquid remover shell to evaporate and prevent the refrigerant liquid from being sucked by the compressor. Wherein, a first valve and a throttle capillary are arranged between the first heat exchange pipe and the compressor exhaust pipe, a variable frequency compressor is arranged between the liquid remover shell matched with one set of refrigeration assembly and the condenser, a plurality of fixed frequency compressors are arranged between the other set of refrigeration assembly liquid remover shell and the condenser, and the fixed frequency compressors are connected with the condenser and the liquid remover.
In order to further realize the purpose of the utility model, the technical scheme can also be adopted that the internal installation of the evaporator shell is provided with an accelerating heat exchange device, the accelerating heat exchange device comprises a submersible pump and two guide plates, the output water flow of the submersible pump can pass through the second heat exchange tube, the planes of the two guide plates are parallel to each other, and the output water flow of the submersible pump can pass between the two guide plates.
The water outlet pipes of the two refrigeration assemblies are communicated with each other, and the water inlet pipes of the two refrigeration assemblies are communicated with each other.
The utility model has the advantages that: the utility model discloses an utilize two sets of refrigeration assemblies to combine together with a variable frequency compressor and several fixed frequency compressor respectively, make a variable frequency compressor and several fixed frequency compressor can jointly produce the cooling water to make the cooling water set have bigger power adjustable range, two sets of refrigeration assemblies can make variable frequency compressor and fixed frequency compressor can the independent operation simultaneously, avoid variable frequency compressor and fixed frequency compressor to produce too much mutual influence at the operation in-process. The utility model discloses a combine together through a variable frequency compressor and several fixed frequency compressor, the power that can enough utilize variable frequency compressor is nimble adjustable at 19KW-80KW, when needs high-power cold water refrigeration, can utilize fixed frequency compressor stack variable frequency compressor's power, realizes the regulation of cooling water set power at wider within range simultaneously. The variable frequency compressor and the fixed frequency compressor can compress a refrigerating medium and input the refrigerating medium into the condenser, the refrigerating medium can release heat in the condenser due to being compressed, and the fan can cool the condenser by utilizing cooling air at the moment, so that the condensation of the refrigerating medium is facilitated; after the refrigerant of condenser is condensed into liquid, can input the second heat exchange tube inside, can evaporate into the gaseous state and the heat absorption at the inside liquid refrigerant of second heat exchange tube, make the inside water cooling of evaporimeter casing, the cold water circulation output after outlet pipe and inlet tube pass through the circulating pump with inside cooling supplies cold water to use. The utility model discloses an auxiliary liquid removal system can utilize compressor discharge high temperature refrigerant gas to supply the inboard bottom of liquid removal ware casing to the liquid refrigerant medium of the inside part of liquid removal ware casing that will input evaporates with higher speed, thereby reduces liquid refrigerant medium and enters into in the compressor. The utility model also has the advantages of simple and compact structure, low manufacturing cost and simple and convenient use.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
Fig. 1 is a schematic structural diagram of the present invention.
Labeling components: 1 fan 2 condenser 3 first valve 4 second valve 5 first change valve 6 second change valve 7 evaporator shell 8 outlet pipe 9 inlet pipe 10 relief valve 11 liquid remover shell 12 first heat exchange tube 13 third valve 15 frequency conversion compressor 16 constant frequency compressor 17 second heat exchange tube 18 guide plate 19 immersible pump, 20 compressor exhaust pipe, 21 compressor suction pipe.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
a double-system water chilling unit is shown in figure 1 and comprises two sets of refrigeration assemblies, each set of refrigeration assembly comprises a condensation evaporation system and an auxiliary liquid removal system, the condensation evaporation system comprises a condenser 2, a fan 1 and an evaporator, airflow sucked by the fan 1 can pass through the condenser 2, the evaporator comprises an evaporator shell 7 and a second heat exchange tube 17, the second heat exchange tube 17 is installed inside the evaporator shell 7, the shell of the evaporator shell 7 is connected with a water outlet tube 8 and a water inlet tube 9, the inside of one end of the water outlet tube 8 and the inside of one end of the water inlet tube 9 are both communicated with the inside of the evaporator shell 7, a pipeline at the inlet of the condenser 2 is provided with two ports, one port is a first connecting end of the liquid removal system, the other port is communicated with one end of the condenser 2, the other end of the condenser 2 is connected with the second heat exchange tube 17, the inside of the other end of the second, the liquid remover shell 11 is provided with two gas guide pipes, the interiors of the two gas guide pipes are communicated with the interior of the liquid remover shell 11, one ends of the two gas guide pipes are positioned at the upper part of the inner side of the liquid remover shell 11, one gas guide pipe is a gas outlet of the second heat exchange pipe 17, the other gas guide pipe is connected with a compressor suction pipe 20, an auxiliary liquid removing system is arranged between the compressor suction pipe 20 and the evaporator shell 7 and comprises a first heat exchange pipe 12, the interiors of two ends of the first heat exchange pipe 12 are respectively connected with a compressor exhaust pipe 21 and the compressor suction pipe 20, and the middle part of the first heat exchange pipe 12 is positioned at the lower part of the inner side of the liquid remover shell 11 so as to heat up refrigerant liquid in the liquid remover shell 11 and evaporate the refrigerant liquid to prevent the refrigerant. Wherein, a frequency conversion compressor 15 is arranged between a liquid removing device shell 11 matched with one set of refrigeration assembly and a condenser 2 which are arranged between a first valve 3 and a compressor exhaust pipe 21 and a capillary 14, a plurality of fixed frequency compressors 16 are arranged between the other set of refrigeration assembly liquid removing device shell and the condenser, and the fixed frequency compressors 16 are connected with the condenser and the liquid removing device.
The utility model discloses utilize two sets of refrigeration assemblies to combine together with a variable frequency compressor 15 and several fixed frequency compressor 16 respectively, make a variable frequency compressor 15 and several fixed frequency compressor 16 can the joint production cooling water to make the cooling water set have bigger power adjustable range, two sets of refrigeration assemblies can make variable frequency compressor 15 and fixed frequency compressor 16 can the independent operation simultaneously, avoid variable frequency compressor 15 and fixed frequency compressor 16 to produce too much interact at the operation in-process. The utility model discloses a variable frequency compressor 15 and several decide frequency compressor 16 and combine together, can enough utilize variable frequency compressor 15's power at the nimble adjustable of 19KW-80KW, when needs high-power cold water refrigeration, can utilize the power of deciding 16 stack variable frequency compressors 15 of frequency compressor simultaneously, realize the regulation of cooling water set power at wider within range. The variable frequency compressor 15 and the fixed frequency compressor 16 can compress the refrigeration medium and input the refrigeration medium into the condenser 2, the refrigeration medium can release heat in the condenser 2 due to being compressed, and at the moment, the fan 1 can utilize cooling air to cool the condenser 2, so that the refrigeration medium is convenient to cool; after the refrigerant of the condenser 2 is condensed into liquid, the liquid refrigerant is input into the second heat exchange tube 17, the liquid refrigerant in the second heat exchange tube 17 is evaporated into gas state and absorbs heat, so that the water in the evaporator shell 7 is cooled, and the cold water cooled in the evaporator shell 7 is circularly output by the water outlet tube 8 and the water inlet tube 9 through the circulating pump and is supplied for cold water. The utility model discloses an auxiliary liquid removing system can utilize the high temperature refrigeration medium that produces behind the compressor 15 compression with the refrigeration medium to let in the inboard bottom of knockout casing 11 to the evaporation with higher speed will be input into the liquid refrigeration medium of 11 inside parts of knockout casing, thereby reduce liquid refrigeration medium and enter into in inverter compressor 15 or the constant frequency compressor 16.
Material selection and feasibility analysis of specific implementation: the practical manufactured sample is implemented by taking the specification attached drawing as a drawing according to the proportion and the matching mode of each part in the specification attached drawing, the connection is a common connection mode such as strong adhesive connection, welding, riveting, flange connection, integrated connection and the like, and the corresponding connection mode, the thickness and the strength of the connection point can be selected without creativity according to the actual connection strength requirement during practical manufacturing. We further explain the effect of the technology, when the water chilling unit needs to operate under lower power, only one inverter compressor 15 needs to be started and a plurality of fixed frequency compressors 16 need to be closed, at this time, the water chilling unit can freely adjust the power within the range of 19KW-80KW, when the water chilling unit needs to operate under higher power, one inverter compressor 15 and one fixed frequency compressor 16 can be synchronously started, at this time, the inverter compressor 15 and the fixed frequency compressor 16 respectively operate to realize the superposition of the power, if the power used by the fixed frequency compressor 16 is 50KW, the adjustment within the range of 69KW-130KW can be realized after the inverter compressor 15 and the fixed frequency compressor 16 are connected in parallel, along with the increase of the number of the fixed frequency compressors 16, the power of the water chilling unit is sequentially increased, thereby realizing the adjustment of the water chilling unit within a larger range, the requirement of the market on the water chilling unit with adjustable large-range power is met. A second valve 4 is arranged on a communication pipeline of the condenser 2 and the second heat exchange pipe 17, a first valve 3 is arranged on a communication pipeline between the first heat exchange pipe 12 and the first connecting end, and a third valve 3 is arranged between the second connecting end and a cooling medium inlet of the variable-frequency compressor 15.
The inside installation of evaporimeter casing 7 accelerates heat transfer device, heat transfer device includes immersible pump 19 and two guide plates 18 with higher speed, and immersible pump 19 output rivers can pass through second heat exchange tube 17, and two guide plates 18 place plane are parallel to each other, and immersible pump 19's output rivers can pass through between two guide plates 18.
The utility model discloses an it can make the inside water of evaporator housing 7 flow through the surface of second heat exchange tube 17 with higher speed to accelerate second heat exchange tube 17 and absorb the heat of the inside water of evaporator housing 7, thereby improve the refrigeration efficiency to water.
The water outlet pipes 8 of the two sets of refrigeration assemblies are mutually communicated, and the water inlet pipes 9 of the two sets of refrigeration assemblies are mutually communicated.
The utility model discloses a two sets of refrigeration assemblies's outlet pipe 8 communicates each other, and two sets of refrigeration assemblies's inlet tube 9 communicates each other, helps circulating water pump to the inside circulating water that lets in of two sets of refrigeration assemblies.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. Two system cooling water set, its characterized in that: comprises two sets of refrigeration assemblies, each set of refrigeration assembly comprises a condensation evaporation system and an auxiliary liquid removal system, the condensation evaporation system comprises a condenser (2), a fan (1) and an evaporator, air flow sucked by the fan (1) can pass through the condenser (2), the evaporator comprises an evaporator shell (7) and a second heat exchange tube (17), the second heat exchange tube (17) is arranged inside the evaporator shell (7), the shell of the evaporator shell (7) is connected with a water outlet tube (8) and a water inlet tube (9), the inside of one end of the water outlet tube (8) and the inside of one end of the water inlet tube (9) are both communicated with the inside of the evaporator shell (7), a pipeline at the inlet of the condenser (2) is provided with two ports, one port is a first connecting end of the liquid removal system, the other port is communicated with one end of the condenser (2), the inside of the other end of the second heat exchange tube (17) is communicated with the inside of the liquid removal, the liquid remover shell (11) is provided with two gas guide pipes, the interiors of the two gas guide pipes are communicated with the interior of the liquid remover shell (11), one ends of the two gas guide pipes are positioned at the upper part of the inner side of the liquid remover shell (11), one gas guide pipe is a gas outlet of a second heat exchange pipe (17), the other gas guide pipe is connected with a compressor suction pipe (20), an auxiliary liquid removing system is arranged between the compressor suction pipe (20) and the evaporator shell (7), the auxiliary liquid removing system comprises a first heat exchange pipe (12), the interiors of two ends of the first heat exchange pipe (12) are respectively connected with a compressor exhaust pipe (21) and the compressor suction pipe (20), the middle part of the first heat exchange pipe (12) is positioned at the lower part of the inner side of the liquid remover shell (11) so as to heat up the refrigerant liquid in the liquid remover shell (11) to evaporate and prevent the refrigerant liquid from being sucked, wherein, a first valve (3) and a capillary tube (14) are arranged between the first heat exchange tube (12) and the compressor exhaust pipe (21), a frequency conversion compressor (15) is arranged between a liquid remover shell (11) matched with one set of refrigeration assembly and the condenser (2), a plurality of fixed frequency compressors (16) are arranged between the other set of refrigeration assembly liquid remover shell and the condenser, and the fixed frequency compressors (16) are connected with the condenser and the liquid remover.
2. The dual system water chilling unit of claim 1, wherein: the internally mounted of evaporimeter casing (7) accelerates heat transfer device, heat transfer device includes immersible pump (19) and two guide plate (18) with higher speed, and immersible pump (19) output rivers can pass through second heat exchange tube (17), and two guide plate (18) place planes are parallel to each other, and the output rivers of immersible pump (19) can pass through between two guide plate (18).
3. The dual system water chilling unit of claim 1, wherein: the water outlet pipes (8) of the two refrigeration assemblies are mutually communicated, and the water inlet pipes (9) of the two refrigeration assemblies are mutually communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223466.6U CN209763529U (en) | 2019-02-22 | 2019-02-22 | Double-system water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223466.6U CN209763529U (en) | 2019-02-22 | 2019-02-22 | Double-system water chilling unit |
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| Publication Number | Publication Date |
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| CN209763529U true CN209763529U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920223466.6U Active CN209763529U (en) | 2019-02-22 | 2019-02-22 | Double-system water chilling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451600A (en) * | 2022-09-21 | 2022-12-09 | 孚莱美科(江苏)环境科技有限公司 | Combined air-cooled modular unit and energy regulation and control method thereof |
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2019
- 2019-02-22 CN CN201920223466.6U patent/CN209763529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451600A (en) * | 2022-09-21 | 2022-12-09 | 孚莱美科(江苏)环境科技有限公司 | Combined air-cooled modular unit and energy regulation and control method thereof |
| CN115451600B (en) * | 2022-09-21 | 2024-01-23 | 孚莱美科(江苏)环境科技有限公司 | Combined air-cooled module unit and energy control method thereof |
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