Straight-through large-flow water source heat pump system

Abstract

The present invention discloses a straight-through large-channel water-source heat pump system, including a straight-through large-channel evaporator, a straight-through large-channel condenser, an external oil separator, a steam compression compressor and an economizer device, wherein the straight-through large-channel evaporator is provided with an evaporator high oil return port, an evaporator low oil return port, an evaporator liquid inlet, an evaporator air outlet, an evaporator water inlet and an evaporator water outlet, and the straight-through large-channel condenser is provided with a high-pressure steam air outlet, a condenser oil return port, a condenser liquid outlet, a condenser air inlet, a condenser water outlet and a condenser water inlet, and the present invention relates to the technical field of straight-through large-channel sewage source heat pumps. The present invention solves the problem that the sewage source heat pump currently used in the market is replaced by an ordinary water source heat pump, which is easy to be blocked during use and difficult to remove dirt and scale.

Description

Technical Field

[0001] The invention relates to the technical field of straight-through large-flow sewage source heat pumps, in particular to a straight-through large-flow water ground source heat pump system. Background Art

[0002] The sewage source heat pump currently used in the market is replaced by an ordinary water source heat pump. During use, it is easy to get clogged and difficult to remove dirt and scale. There is also a way to increase the intermediate heat exchange to avoid the blockage of ordinary water source heat pumps, but after running for a period of time, the intermediate heat exchange equipment will also become dirty and clogged, and it needs to be cleaned regularly, which increases investment costs, increases labor costs, and affects the service life of the equipment. The straight-through large-flow sewage source heat pump eliminates the intermediate heat exchange, has less energy loss, higher efficiency, and is more energy-saving. Summary of the invention

[0003] In order to solve the problem that the sewage source heat pumps currently used in the market are replaced by ordinary water source heat pumps, which are prone to clogging and difficult to remove dirt and scale during use, the purpose of the present invention is to provide a straight-through large-flow water source heat pump system.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a straight-through large-channel water-source heat pump system, including a straight-through large-channel evaporator, a straight-through large-channel condenser, an external oil separator, a steam compression compressor and an economizer device, the straight-through large-channel evaporator is provided with an evaporator high oil return port, an evaporator low oil return port, an evaporator liquid inlet, an evaporator air outlet, an evaporator water inlet and an evaporator water outlet, the straight-through large-channel condenser is provided with a high-pressure steam air outlet, a condenser oil return port, a condenser liquid outlet, a condenser air inlet, and a condenser water outlet and a condenser water inlet, the external oil separator is provided with an external oil separator air outlet, an external oil separator air inlet and an external oil separator oil outlet, the steam compression compressor is provided with a compressor air intake, a compressor economizer inlet and a compressor exhaust, the economizer device is provided with an economizer first inlet, an economizer first outlet, an economizer second inlet and an economizer second outlet, the straight-through large-flow evaporator, the straight-through large-flow condenser, the external oil separator, the steam compression compressor and the economizer device are connected in series in sequence through pipelines to form a loop.

[0005] Preferably, the evaporator high oil return port and the evaporator low oil return port are connected to the high-pressure steam outlet, and an evaporator oil circuit filter, an evaporator oil circuit oil mirror and a venturi device are arranged therebetween, the venturi device is connected to the compressor suction port, the evaporator liquid inlet is connected to the main liquid pipeline throttling device, the main liquid pipeline throttling device is respectively connected to the first outlet of the economizer and the second inlet of the economizer, a main liquid pipeline sight glass is arranged on the pipeline between the main liquid pipeline throttling device and the second inlet of the economizer, and the evaporator outlet is connected to the compressor suction port.

[0006] Preferably, the condenser liquid outlet is connected to the compressor suction port, and a condenser oil circuit oil mirror and a condenser oil circuit filter are arranged therebetween, the condenser air inlet is connected to the external oil separator air outlet, the condenser liquid outlet is connected to a main liquid pipeline filter, the main liquid pipeline filter is connected to the first inlet of the economizer, and a main liquid pipeline sight glass is arranged therebetween.

[0007] Preferably, the air inlet of the external oil separator is connected to the exhaust port of the compressor, and the oil outlet of the external oil separator is connected to the suction port of the compressor, and an oil separator oil circuit oil mirror and an oil separator oil circuit filter are arranged therebetween.

[0008] Preferably, the compressor economizer inlet is connected to the economizer second outlet.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the straight-through large-flow sewage source heat pump unit can organically combine wastewater with the heat pump system, fully and efficiently utilize the thermal energy in the wastewater, effectively increase the outlet water temperature of bathing hot water, produce domestic hot water or heating hot water, save energy and be environmentally friendly, and has good practicality.

[0010] The control output end of the controller is connected to the control points of the above equipment respectively. After the controller adopts adaptive control logic, it can reasonably control the evaporator liquid level according to the operating conditions, maximize the capacity of the compressor and heat exchanger, make the various components of the unit more matched, and make the oil return stable and reliable, effectively extending the service life of the unit and improving the energy efficiency of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] In the figure: 101 straight-through large-flow evaporator, 102 evaporator high oil return port, 103 evaporator low oil return port, 104 evaporator liquid inlet, 105 evaporator air outlet, 106 evaporator oil circuit filter, 107 evaporator oil circuit oil mirror, 108 Venturi device, 109 straight-through large-flow condenser, 201 high-pressure steam outlet, 202 condenser oil circuit oil mirror, 203 condenser oil circuit filter, 204 condenser oil return port, 205 condenser air inlet, 206 condenser liquid outlet, 207 external oil separator, 208 external oil separator air outlet, 209 external oil separator air inlet Inlet, 301 external oil separator oil outlet, 302 condenser water outlet, 303 condenser water inlet, 304 main liquid pipeline filter, 306 main liquid pipeline throttling device, 307 evaporator water outlet, 308 evaporator water inlet, 309 economizer first inlet, 401 economizer first outlet, 403 economizer second inlet, 404 economizer device, 405 economizer second outlet, 406 compressor economizer inlet, 407 steam compression compressor, 408 compressor suction port, 409 compressor exhaust port, 501 oil separator oil circuit oil mirror, 502 oil separator oil circuit filter. DETAILED DESCRIPTION

[0014] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0015] See also Figure 1 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0016] The present invention provides a technical solution: a straight-through large-flow water-source heat pump system, comprising a straight-through large-flow evaporator 101, a straight-through large-flow condenser 109, an external oil separator 207, a steam compression compressor 407 and an economizer device 404, wherein the straight-through large-flow evaporator 101 is provided with an evaporator high oil return port 102, an evaporator low oil return port 103, an evaporator liquid inlet 104, an evaporator air outlet 105, an evaporator water inlet 308 and an evaporator water outlet 307, and the straight-through large-flow condenser 109 is provided with a high-pressure steam air outlet 201, a condenser oil return port 204, a condenser liquid outlet 206, a condenser air inlet 205, a condenser water outlet 302 and a condenser water inlet The external oil separator 207 is provided with an external oil separator air outlet 208, an external oil separator air inlet 209 and an external oil separator oil outlet 301. The steam compression compressor 407 is provided with a compressor air intake 408, a compressor economizer inlet 406 and a compressor exhaust 409. The economizer device 404 is provided with an economizer first inlet 309, an economizer first outlet 401, an economizer second inlet 403 and an economizer second outlet 405. The straight-through large-flow evaporator 101, the straight-through large-flow condenser 109, the external oil separator 207, the steam compression compressor 407 and the economizer device 404 are connected in series through pipelines in sequence to form a loop.

[0017] The evaporator high oil return port 102 and the evaporator low oil return port 103 are connected to the high-pressure steam outlet 201, and an evaporator oil circuit filter 106, an evaporator oil circuit oil mirror 107 and a venturi device 108 are arranged therebetween. The venturi device 108 is connected to the compressor suction port 408. The evaporator liquid inlet 104 is connected to the main liquid pipeline throttling device 306. The main liquid pipeline throttling device 306 is respectively connected to the economizer first outlet 401 and the economizer second inlet 403. A main liquid pipeline sight glass is arranged on the pipeline between the main liquid pipeline throttling device 306 and the economizer second inlet 403. The evaporator outlet 105 is connected to the compressor suction port 408.

[0018] The condenser liquid outlet 206 is connected to the compressor suction port 408, and a condenser oil circuit oil mirror 202 and a condenser oil circuit filter 203 are arranged therebetween. The condenser air inlet 205 is connected to the external oil separator air outlet 208. The condenser liquid outlet 206 is connected to a main liquid pipeline filter 304. The main liquid pipeline filter 304 is connected to the economizer first inlet 309, and a main liquid pipeline sight glass is arranged therebetween.

[0019] The external oil separator air inlet 209 is connected to the compressor exhaust port 409, and the external oil separator oil outlet 301 is connected to the compressor intake port 408, and an oil separator oil path oil mirror 501 and an oil separator oil path filter 502 are arranged therebetween.

[0020] The compressor economizer inlet 406 is connected to the economizer second outlet 405 .

[0021] When in use, the straight-through large-flow sewage source heat pump unit can organically combine the wastewater with the heat pump system, fully and efficiently utilize the thermal energy in the wastewater, effectively increase the outlet water temperature of bathing hot water, produce domestic hot water or heating hot water, save energy and protect the environment, and has good practicality; the control output end of the controller is respectively connected to the control points of the above equipment. After the controller adopts adaptive control logic, it can reasonably control the evaporator liquid level according to the operating conditions, maximize the capacity of the compressor and heat exchanger, make the various components of the unit more matched, and the oil return is stable and reliable, which effectively extends the service life of the unit and improves the energy efficiency of the unit.

[0022] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A straight-through large-flow water-source heat pump system, comprising a straight-through large-flow evaporator (101), a straight-through large-flow condenser (109), an external oil separator (207), a steam compression compressor (407) and an economizer device (404), characterized in that: The straight-through large-flow channel evaporator (101) is provided with an evaporator high oil return port (102), an evaporator low oil return port (103), an evaporator liquid inlet (104), an evaporator air outlet (105), an evaporator water inlet (308) and an evaporator water outlet (307); the straight-through large-flow channel condenser (109) is provided with a high-pressure steam air outlet (201), a condenser oil return port (204), a condenser liquid outlet (206), a condenser air inlet (205), a condenser water outlet (302) and a condenser water inlet (303); the external oil separator (207) is provided with an external oil separator air outlet (208), an external oil separator air inlet ( The steam compression compressor (407) is provided with a compressor air intake (408), a compressor economizer inlet (406) and a compressor exhaust (409); the economizer device (404) is provided with an economizer first inlet (309), an economizer first outlet (401), an economizer second inlet (403) and an economizer second outlet (405); the straight-through large-flow evaporator (101), the straight-through large-flow condenser (109), the external oil separator (207), the steam compression compressor (407) and the economizer device (404) are connected in series in sequence through pipelines to form a loop; The evaporator high oil return port (102) and the evaporator low oil return port (103) are connected to the high-pressure steam outlet (201), and an evaporator oil circuit filter (106), an evaporator oil circuit oil mirror (107) and a venturi device (108) are arranged between them; the venturi device (108) is connected to the compressor air intake port (408); the evaporator liquid inlet (104) is connected to a main liquid pipeline throttling device (306); the main liquid pipeline throttling device (306) is respectively connected to the first outlet (401) and the second inlet (403) of the economizer; a main liquid pipeline sight glass is arranged on the pipeline between the main liquid pipeline throttling device (306) and the second inlet (403) of the economizer; and the evaporator air outlet (105) is connected to the compressor air intake port (408); The condenser liquid outlet (206) is connected to the compressor air intake (408), and a condenser oil circuit oil mirror (202) and a condenser oil circuit filter (203) are arranged between them; the condenser air inlet (205) is connected to the external oil separator air outlet (208); the condenser liquid outlet (206) is connected to a main liquid pipeline filter (304); the main liquid pipeline filter (304) is connected to the first inlet (309) of the economizer, and a main liquid pipeline sight glass is arranged between them.

2. The straight-through large-flow water ground-source heat pump system according to claim 1 is characterized in that: The external oil separator air inlet (209) is connected to the compressor exhaust port (409), and the external oil separator oil outlet (301) is connected to the compressor suction port (408), and an oil separator oil circuit oil mirror (501) and an oil separator oil circuit filter (502) are arranged therebetween.

3. The straight-through large-flow water ground-source heat pump system according to claim 1 is characterized in that: The compressor economizer inlet (406) is connected to the economizer second outlet (405).

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