CN219368043U - Preheating heat pump circulation system - Google Patents
Preheating heat pump circulation system Download PDFInfo
- Publication number
- CN219368043U CN219368043U CN202320705141.8U CN202320705141U CN219368043U CN 219368043 U CN219368043 U CN 219368043U CN 202320705141 U CN202320705141 U CN 202320705141U CN 219368043 U CN219368043 U CN 219368043U
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- China
- Prior art keywords
- heat pump
- liquid storage
- storage tank
- compressor
- pump cycle
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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
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- Central Heating Systems (AREA)
Abstract
The utility model discloses a preheating heat pump circulation system which comprises a compressor, an evaporator and a condenser, wherein an inlet of the evaporator is communicated with an outlet of the condenser, an inlet of the condenser is communicated with an outlet of the compressor, an inlet of the compressor is communicated with an outlet of the evaporator, a liquid storage tank is arranged on a communicating pipeline of the condenser and the evaporator, the liquid storage tank is provided with a heating device, the heating device and the compressor are controlled by a controller, the liquid storage tank is provided with a temperature sensor for the temperature inside the liquid storage tank, and the temperature sensor is electrically connected with the controller. The utility model can preheat the working medium when the temperature of the working medium of the heat pump is low, and is convenient for starting the heat pump.
Description
Technical Field
The utility model relates to the technical field of heat pumps, in particular to a preheating heat pump circulation system.
Background
The heat pump is a high-efficiency energy-saving device which fully utilizes low-grade heat energy. Heat may be spontaneously transferred from a high temperature object to a low temperature object, but may not be spontaneously conducted in the opposite direction. The working principle of the heat pump is a mechanical device which forces heat to flow from a low-temperature object to a high-temperature object in a reverse circulation mode, only a small amount of reverse circulation net work is consumed, larger heat supply can be obtained, and low-grade heat energy which is difficult to apply can be effectively utilized to achieve the purpose of energy conservation.
In cold areas such as north, especially in winter, the working medium of the heat pump is easy to freeze, which is unfavorable for the starting of the heat pump, and the working medium of the heat pump is necessary to be preheated before starting.
Disclosure of Invention
The utility model aims to provide a preheating heat pump circulating system, which can preheat working medium when the temperature of the working medium of a heat pump is low, and is convenient for starting the heat pump.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model discloses a preheating heat pump circulation system, which comprises a compressor, an evaporator and a condenser, wherein an inlet of the evaporator is communicated with an outlet of the condenser, an inlet of the condenser is communicated with an outlet of the compressor, and an inlet of the compressor is communicated with an outlet of the evaporator, wherein: the liquid storage tank is arranged on the communicating pipeline of the condenser and the evaporator, the liquid storage tank is provided with a heating device, the heating device and the compressor are controlled by the controller, the liquid storage tank is provided with a temperature sensor for the internal temperature of the liquid storage tank, and the temperature sensor is electrically connected with the controller.
Further, the liquid storage tank is communicated with an inlet of the expansion valve, and an outlet of the expansion valve is connected with the evaporator.
Further, a filter is arranged on a communicating pipeline between the liquid storage tank and the expansion valve.
Preferably, the heating device is an electric heating device.
Preferably, the electric heating device is an electric heating pipe, and the electric heating pipe is embedded in a concave groove on the outer wall of the liquid storage tank.
Preferably, one end of the electric heating tube is connected with one end of a first pair of normally open contacts of the relay K1, the other end of the first pair of normally open contacts is connected with a live wire, the other end of the electric heating tube is connected with one end of a second pair of normally open contacts of the relay K1, and the other end of the second pair of normally open contacts is connected with a zero line; an electronic switch is connected in series in a coil loop of the relay K1, and the electronic switch is controlled by a controller.
Further preferably, the electronic switch comprises an NPN triode Q1, the controller comprises a single chip microcomputer U1, one output end of the single chip microcomputer U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a base electrode of the NPN triode Q1, a collector electrode of the NPN triode Q1 is connected with one end of a coil of a relay K1, the other end of the coil of the relay K1 is connected with a direct current power supply VCC, and an emitter electrode of the NPN triode Q1 is grounded GND.
Preferably, the output end of the temperature sensor is connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is connected with the input end of the A/D converter, and the output end of the A/D converter is connected with the input end of the singlechip U1.
The utility model can detect the temperature of the working medium of the heat pump, and control the heater and the compressor to work through the controller, so that the low-temperature even frozen working medium can be preheated when the heat pump is started, and the compressor is started after the temperature of the working medium is increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is an electrical schematic of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Example 1
As shown in fig. 1, this embodiment discloses a preheating heat pump cycle system, including compressor, evaporator, condenser, the export of the entry intercommunication condenser of evaporator, the export of the entry intercommunication compressor of condenser, the export of the entry intercommunication evaporator of compressor, wherein: the liquid storage tank is arranged on the communicating pipeline of the condenser and the evaporator, the liquid storage tank is provided with a heating device, the heating device and the compressor are controlled by the controller, the liquid storage tank is provided with a temperature sensor for the internal temperature of the liquid storage tank, and the temperature sensor is electrically connected with the controller.
Further, the embodiment further comprises an expansion valve, the liquid storage tank is communicated with an inlet of the expansion valve, and an outlet of the expansion valve is connected with the evaporator. And a filter is also arranged on the communicating pipeline between the liquid storage tank and the expansion valve.
The heating device of this embodiment adopts electric heating device, specifically can adopt electric heating pipe, and electric heating pipe inlays the dress in the indent of liquid storage pot outer wall.
In the starting process of the heat pump, the temperature sensor detects the temperature of a working medium (arranged in the liquid storage tank) of the heat pump, the heater and the compressor are controlled to work through the controller, the working medium which is low in temperature and even frozen is preheated, and the compressor is started after the temperature of the working medium is increased, so that the heat pump is started to work.
Example 2
On the basis of embodiment 1, the embodiment discloses a control system of the preheating heat pump circulation system, which comprises the following specific steps:
as shown in fig. 2, one end of the electric heating tube is connected with one end of a first pair of normally open contacts of the relay K1, the other end of the first pair of normally open contacts is connected with a live wire, the other end of the electric heating tube is connected with one end of a second pair of normally open contacts of the relay K1, and the other end of the second pair of normally open contacts is connected with a zero line; an electronic switch is connected in series in a coil loop of the relay K1, and the electronic switch is controlled by a controller.
More specifically, the electronic switch includes NPN triode Q1, and the controller includes singlechip U1, and one output of singlechip U1 connects resistance R1's one end, and resistance R1's the base of NPN triode Q1 is connected to the other end, and relay K1's one end of the coil is connected to NPN triode Q1's collecting electrode, and direct current power VCC is connected to relay K1's the other end of coil, and NPN triode Q1's projecting pole ground GND. The output end of the temperature sensor is connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is connected with the input end of the A/D converter, and the output end of the A/D converter is connected with the input end of the singlechip U1.
Before the compressor starts, the singlechip U1 obtains the temperature of working medium (usually freon etc.) in the liquid storage pot through temperature sensor, and when this temperature is low, the aforesaid output of singlechip U1 exports high level, NPN triode Q1 switches on, and relay K1's coil gets the electricity, and first pair of normally open contact, second are closed to normally open contact, and electric heating pipe's both ends switch on live wire and zero line respectively, and electric heating pipe gets the electricity to preheat working medium. When the working medium is preheated to a preset temperature, the output end of the singlechip U1 outputs low level, the electric heating pipe is powered off, heating is stopped, and the singlechip U1 simultaneously controls the starting of the compressor.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a preheat heat pump cycle, includes compressor, evaporimeter, condenser, the export of the entry intercommunication condenser of evaporimeter, the export of the entry intercommunication compressor of condenser, the export of the entry intercommunication evaporimeter of compressor, its characterized in that: the liquid storage tank is arranged on the communicating pipeline of the condenser and the evaporator, the liquid storage tank is provided with a heating device, the heating device and the compressor are controlled by the controller, the liquid storage tank is provided with a temperature sensor for the internal temperature of the liquid storage tank, and the temperature sensor is electrically connected with the controller.
2. The preheat heat pump cycle of claim 1, wherein: the liquid storage tank is communicated with an inlet of the expansion valve, and an outlet of the expansion valve is connected with the evaporator.
3. The preheat heat pump cycle of claim 2, wherein: and a filter is arranged on a communicating pipeline between the liquid storage tank and the expansion valve.
4. A preheating heat pump cycle according to any one of claims 1-3, wherein: the heating device is an electric heating device.
5. The preheat heat pump cycle of claim 4 wherein: the electric heating device is an electric heating pipe which is embedded in a concave groove on the outer wall of the liquid storage tank.
6. The preheat heat pump cycle of claim 5, wherein: one end of the electric heating tube is connected with one end of a first pair of normally open contacts of the relay K1, the other end of the first pair of normally open contacts is connected with a live wire, the other end of the electric heating tube is connected with one end of a second pair of normally open contacts of the relay K1, and the other end of the second pair of normally open contacts is connected with a zero line; an electronic switch is connected in series in a coil loop of the relay K1, and the electronic switch is controlled by a controller.
7. The preheat heat pump cycle of claim 6, wherein: the electronic switch comprises an NPN triode Q1, the controller comprises a single chip microcomputer U1, one output end of the single chip microcomputer U1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a base electrode of the NPN triode Q1, a collector electrode of the NPN triode Q1 is connected with one end of a coil of a relay K1, the other end of the coil of the relay K1 is connected with a direct current power supply VCC, and an emitter electrode of the NPN triode Q1 is grounded GND.
8. The preheat heat pump cycle of claim 7, wherein: the output end of the temperature sensor is connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is connected with the input end of the A/D converter, and the output end of the A/D converter is connected with the input end of the singlechip U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320705141.8U CN219368043U (en) | 2023-04-03 | 2023-04-03 | Preheating heat pump circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320705141.8U CN219368043U (en) | 2023-04-03 | 2023-04-03 | Preheating heat pump circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219368043U true CN219368043U (en) | 2023-07-18 |
Family
ID=87147039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320705141.8U Active CN219368043U (en) | 2023-04-03 | 2023-04-03 | Preheating heat pump circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219368043U (en) |
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2023
- 2023-04-03 CN CN202320705141.8U patent/CN219368043U/en active Active
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