Wide-range temperature-control energy-saving water-cooling condensing unit

Abstract

The utility model relates to the technical field of refrigeration air conditioners, in particular to a wide temperature control energy-saving water-cooling condensing unit, which provides power by supplying power to a compressor, takes out heat in a shell and tube condenser, and dissipates the heat through water in the shell and tube condenser. A refrigerant sequentially passes through the oil separator, the condenser, the liquid supply valve, the drying filter, the liquid sight glass and the liquid supply valve. And after being evaporated on the indoor side, the air returns to the compressor through the gas-liquid separator. The refrigerating requirement is met, the cooling capacity of the compressor is adjusted, meanwhile, the exhaust temperature and the suction temperature are effectively protected and controlled, and the application range of the condensing unit is widened. And the integrated structure is adopted, installation and use are convenient, maintenance is easy, and the operation cost is low. And a common condensing unit is replaced. And the defects of large installation space and high operation cost are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigeration air conditioning, specifically is a wide -range temperature control energy -saving type water -cooled condensing unit. BACKGROUND

[0002] The water -cooled condensing unit that the current market is common mainly is fixed -frequency compressor, and refrigerating capacity can not be adjusted according to demand, and after temperature reaches set temperature, can only be controlled by stopping compressor;2. The temperature of unit application low -temperature zone is minimum -18 DEG C, and the high temperature is 32 DEG C. 3. Condensing unit can not be installed modularly up and down. 4. Unit in cleaning and maintenance water has no water pan to collect waste water. The scope of application of this equipment is not wide;Need multiple equipment use to satisfy use;Large space occupation;Initial investment cost is high;Not energy -efficient. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a wide -range temperature control energy -saving type water -cooled condensing unit to solve the problem in the above -mentioned background art.

[0004] To realize above -mentioned purpose, the utility model provides the following technical scheme: a wide -range temperature control energy -saving type water -cooled condensing unit, including compressor, oil separator, condenser, drying filter, high -low voltage controller, unit frame and electric control, electric control is installed in one side of unit frame inner chamber bottom, oil separator is installed to the back of electric control, condenser is installed to the bottom of unit frame inner chamber below the compressor, the compressor is connected with condenser top through copper pipe on the side of oil separator, gas -liquid separator is connected with the side of compressor through copper pipe, high -low voltage controller is arranged in one side of condenser top, high -low voltage controller surface installs high -low voltage table, drying filter is connected with the side of condenser output through copper pipe, and the output end of sight liquid mirror is connected with the second liquid outlet valve through copper pipe and enters the liquid outlet pipe and is connected to evaporator.

[0005] Preferably, a plurality of frame fixing holes are formed on the surface of the unit frame.

[0006] Preferably, a first liquid outlet valve is installed at the connecting copper pipe between the condenser and the drying filter, and a water pan water outlet pipe is connected to the bottom of the unit frame at one end of the first liquid outlet valve.

[0007] Preferably, the drying filter is connected to the gas-liquid separator through a capillary tube, and a hand valve and a liquid supply valve are installed on the connecting copper pipe between the drying filter and the capillary tube.

[0008] Preferably, a gas return pipe is connected to the input end of the gas-liquid separator.

[0009] Preferably, the high-low pressure gauge is divided into a high pressure gauge and a low pressure gauge, wherein the high pressure gauge is installed at the output end of the compressor, the low pressure gauge is installed at the input end of the compressor, and the high pressure gauge and the low pressure gauge are electrically connected with the high-low pressure controller.

[0010] Compared with the prior art, the utility model has the advantages that: the utility model provides power for the compressor, uses the shell and tube condenser to take out the heat in the condenser, and the water in the shell and tube condenser dissipates the heat. The refrigerant passes through the oil separation separator, the condenser, the liquid supply valve, the drying filter, the sight glass and the liquid supply valve in sequence. After evaporating in the indoor side, the refrigerant returns to the compressor through the gas-liquid separator. The utility model meets the demand of refrigeration, adjusts the cooling capacity of the compressor, effectively protects and controls the exhaust temperature and the suction temperature, improves the application range of the condensing unit, and has the overall structure, is convenient to install and use, is simple to maintain, and has low operation cost. The utility model replaces the ordinary condensing unit, avoids the defects of large installation space and high operation cost, effectively sets the high pressure and low pressure operation values on the high-low pressure controller, meets the use range of the compressor, and can observe the operation state of the whole refrigeration system in real time. Meanwhile, the unit has heat preservation, flow guide, sound insulation, cold bridge prevention and other measures, can be better applied to complex areas, and is a brand-new design. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a front view structural schematic diagram of the utility model; Fig. 2 It is a top view structural schematic diagram of the utility model; Fig. 3 It is a principle structural schematic diagram of the utility model.

[0012] In the drawing: 1, compressor; 2, oil separator; 3, frame fixing hole; 4, condenser; 5, first liquid outlet valve; 6, drying filter; 7, sight glass; 8, second liquid outlet valve; 9, liquid outlet pipe; 10, hand valve; 11, liquid supply valve; 12, high-low pressure gauge; 13, high-low pressure controller; 14, unit frame; 15, electric control; 16, gas-liquid separator; 17, gas return pipe; 18, water pan water outlet pipe. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0014] In the description of the utility model, it needs to explain that, the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0015] In the description of the utility model, it also needs to explain that, unless otherwise expressly provided and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements inside, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0016] Please refer to Figs. 1-3 The utility model provides a technical scheme: a wide control temperature energy -saving type water -cooled condensing unit, including compressor 1, oil separator 2, condenser 4, drying filter 6, high low pressure controller 13, unit frame 14 and electric control 15, the electric control 15 is installed in one side of unit frame 14 inner chamber bottom, the oil separator 2 is installed on the back of electric control 15, the condenser 4 is installed in the compressor 1 below the inner chamber bottom of unit frame 14, the compressor 1 is connected with the condenser 4 top through copper pipe on the side of oil separator 2, the compressor 1 side is connected with gas -liquid separator 16 through copper pipe, the high low pressure controller 13 is arranged on one side of condenser 4 top, the high low pressure controller 13 surface is installed with high low pressure table 12, the condenser 4 output end is connected with drying filter 6 through copper pipe on the side of condenser 4, the drying filter 6 output end is connected with sight glass 7 through copper pipe, the sight glass 7 output end is connected through second liquid outlet valve 8 into liquid outlet pipe 9 and is connected to evaporator through copper pipe.

[0017] Further, a plurality of frame fixing holes 3 are formed on the surface of the unit frame 14.

[0018] Further, a first liquid outlet valve 5 is installed at the connection copper pipe between the condenser 4 and the drying filter 6, and one end of the first liquid outlet valve 5 is connected with a water pan water outlet pipe 18 at the bottom of the unit frame 14.

[0019] Further, the drying filter 6 is connected with the gas-liquid separator 16 through a capillary tube, and a hand valve 10 and a liquid supply valve 11 are installed on the connection copper pipe between the drying filter 6 and the capillary tube.

[0020] Further, the input end of the gas-liquid separator 16 is connected with a gas return pipe 17.

[0021] Further, the high-low pressure gauge 12 is divided into a high pressure gauge and a low pressure gauge, wherein the high pressure gauge is installed at the output end of the compressor 1, the low pressure gauge is installed at the input end of the compressor 1, and the high pressure gauge and the low pressure gauge are electrically connected with the high-low pressure controller 13.

[0022] Working principle: when in use, the electric control 15 provides a starting signal to start the compressor 1 to run, and compress the low-temperature and low-pressure gas into high-temperature and high-pressure gas which is discharged from the exhaust port; the high-temperature and high-pressure gas enters the oil separator 2 through the connected copper pipe, the oil separator 2 separates the oil in the refrigerant gas and connects the copper pipe to enter the condenser 4, the condenser 4 cools the high-temperature and high-pressure gas into high-temperature and high-pressure liquid by heat dissipation, the high-temperature and high-pressure liquid is connected by the copper pipe to enter the first liquid outlet valve 5 for circulation and cut-off, the high-temperature and high-pressure liquid enters the drying filter 6 through the connected copper pipe to absorb the moisture in the refrigerant and remove the impurities in the refrigerant. The dry and clean refrigerant liquid is connected by the copper pipe to enter the sight glass 7 to check whether the refrigerant injection amount needs to be increased, the refrigerant liquid is connected by the copper pipe to enter the liquid outlet pipe 9 through the liquid outlet electromagnetic valve 8 to the evaporator for gasification and evaporation, and the low-temperature and low-pressure gas is evaporated, the low-temperature and low-pressure gas enters the unit through the gas return pipe 17, and the low-temperature and low-pressure gas-liquid mixed refrigerant enters the gas-liquid separator 16 through the copper pipe to separate the gas and the liquid, and the low-temperature and low-pressure gas is compressed through the suction port of the compressor 1 to become high-temperature and high-pressure gas for recycling.

[0023] Exhaust temperature protection working principle: when the exhaust temperature sensor on the controller 15 detects that the exhaust temperature exceeds a certain value, the bypass electromagnetic valve 11 is powered on to start working, the refrigerant liquid is throttled into low-temperature and low-pressure liquid through the capillary tube and mixed with the suction pipe refrigerant to increase the refrigerant flow. The exhaust temperature is always controlled within a safe range for the compressor to run. When the exhaust temperature drops, the safety value is turned off, and the bypass electromagnetic valve 11 stops supplying liquid to the capillary tube.

[0024] Suction temperature protection working principle: when the suction temperature sensor on the controller 15 detects that the suction temperature exceeds a certain value, the bypass electromagnetic valve 11 is powered on to start working, the refrigerant liquid is throttled into low-temperature and low-pressure liquid through the capillary tube and mixed with the suction pipe refrigerant to reduce the suction temperature. The suction temperature is always controlled within a safe range for the compressor to run. When the suction temperature drops, the safety value is turned off, and the bypass electromagnetic valve 11 stops supplying liquid to the capillary tube.

[0025] Energy-saving operation principle: when the actual operating load changes, the controller 15 detects the difference between the set temperature and the actual temperature, adjusts the running frequency of the compressor, reduces the output of the compressor refrigerating capacity, reduces the number of compressor starts, reduces the low-efficiency working time of the compressor, and reduces the energy consumption.

[0026] Module installation principle: the unit uses the frame as the bearing structure, realizes the upper and lower structure superposition installation of the unit, and is fastened by bolts through the fixing hole 3.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wide-width temperature-controlled energy-saving water-cooled condensing unit, comprising a compressor (1), an oil separator (2), a condenser (4), a drying filter (6), a high-low pressure controller (13), a unit frame (14) and an electric control (15), characterized in that: The bottom of the unit frame (14) is provided with an electric control (15), the back of the electric control (15) is provided with an oil separator (2), the compressor (1) is connected with the condenser (4) through the copper pipe on the side of the oil separator (2), the compressor (1) is connected with the gas-liquid separator (16) through the copper pipe on the side of the compressor (1), the condenser (4) is provided with a high-low pressure controller (13) on one side of the top of the condenser (4), the high-low pressure controller (13) is provided with a high-low pressure gauge (12) on the surface of the high-low pressure controller (13), the output end of the condenser (4) is connected with the dry filter (6) through the copper pipe on the side of the condenser (4), the output end of the dry filter (6) is connected with the sight glass (7) through the copper pipe, the output end of the sight glass (7) is connected with the second liquid outlet valve (8) through the copper pipe and then connected with the liquid outlet pipe (9) and the evaporator.

2. The wide-width temperature-controlled energy-saving water-cooled condensing unit according to claim 1, characterized in that: The surface of the unit frame (14) is provided with a plurality of frame fixing holes (3).

3. The wide-width temperature-controlled energy-saving water-cooled condensing unit according to claim 1, characterized in that: The connecting copper pipe between the condenser (4) and the dry filter (6) is provided with the first liquid outlet valve (5), one end of the first liquid outlet valve (5) is connected with the water pan outlet pipe (18) on the bottom of the unit frame (14).

4. The wide-width temperature-controlled energy-saving water-cooled condensing unit according to claim 1, characterized in that: The dry filter (6) is connected with the gas-liquid separator (16) through the capillary tube, and the hand valve (10) and the liquid supply valve (11) are installed on the connecting copper pipe between the dry filter (6) and the capillary tube.

5. The wide-width temperature-controlled energy-saving water-cooled condensing unit according to claim 1, characterized in that: The input end of the gas-liquid separator (16) is connected with the gas return pipe (17).

6. The wide-width temperature-controlled energy-saving water-cooled condensing unit according to claim 1, characterized in that: The high-low pressure gauge (12) is divided into a high pressure gauge and a low pressure gauge, the high pressure gauge is installed on the output end of the compressor (1), the low pressure gauge is installed on the input end of the compressor (1), and the high pressure gauge and the low pressure gauge are electrically connected with the high-low pressure controller (13).

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