CN211551746U - Integrated hot dry rock heat recovery screw type heat pump device - Google Patents
Integrated hot dry rock heat recovery screw type heat pump device Download PDFInfo
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- CN211551746U CN211551746U CN201922387662.XU CN201922387662U CN211551746U CN 211551746 U CN211551746 U CN 211551746U CN 201922387662 U CN201922387662 U CN 201922387662U CN 211551746 U CN211551746 U CN 211551746U
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Abstract
The utility model provides an integrated hot dry rock heat recovery screw type heat pump device, which belongs to the technical field of heating devices and aims to solve the problems that when the existing integrated hot dry rock heat recovery device supplies heat, the operation power of the whole heating device system can not be adjusted according to the temperature of a heating user, the whole heating device system is in a normally open state, a large amount of energy is wasted, and the requirement of energy conservation and environmental protection in the current generation is not met; the system comprises a PLC control box, a refrigerant circulating system, a heating hot water circulating system, a hot water circulating system of a dry hot rock heat exchanger and a heating energy-saving self-circulating system; through energy-conserving self-loopa system of heating to whole integrated form hot dry rock heat recovery heating system, carry out the temperature monitoring of heating user end, adjust the running state of whole device system in real time, open according to actual use demand adjusting device and stop, use more in a flexible way, the energy of saving system operation, more environmental protection, more energy-conservation.
Description
Technical Field
The utility model discloses heating system technical field specifically is an integrated form is hot dry rock heat recovery screw heat pump device.
Background
With the development of economy and the improvement of the living standard of people, energy and environmental problems become more and more the subjects of human attention, wherein, the dry hot rock is taken as a clean energy buried underground, the heat quantity contained in the dry hot rock is abundant, and the dry hot rock is widely concerned. When the existing integrated hot dry rock heat recovery device works, the whole device system is in a continuous working state, the running power of the whole device system cannot be regulated and controlled in real time according to the temperature condition of a heating user side, a large amount of energy is wasted, and the energy-saving and environment-friendly characteristics of the current society are not met.
SUMMERY OF THE UTILITY MODEL
The technical insufficiency to the aforesaid exists, the utility model aims at providing an integrated form hot dry rock heat recovery screw heat pump device, through heating energy-conservation from the circulation system to the hot dry rock heat recovery heating system of whole integrated form, carry out the temperature monitoring of heating user end, adjust the running state of whole device system in real time, open according to opening of in-service use demand adjusting device and stop, use more in a flexible way, the energy of saving system operation, more environmental protection, more energy-conservation.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an integrated hot dry rock heat recovery screw type heat pump device comprises a PLC control box, a refrigerant circulating system, a heating hot water circulating system, a hot dry rock heat exchanger hot water circulating system and a heating energy-saving self-circulating system, wherein the refrigerant circulating system comprises a screw type compressor, a shell and tube type condenser and a shell and tube dry type evaporator; the heating hot water circulating system comprises a user circulating pump and is characterized in that the heating energy-saving self-circulating system comprises a hot water reservoir, a cold water reservoir, a reservoir hot water inlet pipe and a reservoir hot water outlet pipe which are arranged on the hot water reservoir, and a reservoir cold water inlet pipe and a reservoir cold water outlet pipe which are arranged on the cold water reservoir; the hot water reservoir and the cold water reservoir are connected through a circulating pipeline, and an energy-saving circulating pump is arranged on the circulating pipeline; the reservoir hot water inlet pipe and the reservoir cold water outlet pipe are connected to one side of the shell-and-tube condenser; the reservoir hot water outlet pipe with reservoir cold water inlet tube communicates with user's circulating pump respectively.
Preferably, a first energy-saving temperature sensor is arranged on the hot water outlet pipe of the water reservoir, and a second energy-saving temperature sensor is arranged on the cold water inlet pipe of the water reservoir.
Preferably, a water pressure sensor and a water replenishing electromagnetic three-way valve are further arranged on the cold water inlet pipe of the water storage tank.
Preferably, a water blocking electromagnetic valve is arranged on the cold water outlet pipe of the reservoir.
Preferably, a heat insulation layer and a waterproof layer are arranged in the hot water reservoir.
The beneficial effects of the utility model reside in that: this design is through heating energy-conserving self-loopa system to whole integrated form hot dry rock heat recovery heating system, carries out the temperature monitoring of heating user end, adjusts the running state of whole device system in real time, opens according to actual use demand adjusting device and stops, uses more in a flexible way, saves the energy of system operation, more environmental protection, more energy-conservation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an integrated hot dry rock heat recovery screw heat pump device provided by an embodiment of the present invention.
Description of reference numerals:
the system comprises a shell-and-tube condenser 1, a screw compressor 2, a pressure sensor 3, a shell-and-tube dry evaporator 4, a reservoir cold water outlet pipe 5, a water blocking electromagnetic valve 51, a second energy-saving temperature sensor 52, a first energy-saving temperature sensor 53, a cold water reservoir 54, a hot water reservoir 55, a reservoir hot water inlet pipe 56, an energy-saving circulating pump 57 and a user circulating pump 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, an integrated hot dry rock heat recovery screw type heat pump device comprises a PLC control box, a refrigerant circulation system, a heating hot water circulation system, a hot dry rock heat exchanger hot water circulation system and a heating energy-saving self-circulation system; the PLC control box controls the whole system to operate; the refrigerant circulating system comprises a screw compressor 2, a shell-and-tube condenser 1 and a shell-and-tube dry evaporator 4; a pressure sensor 3 is connected above the screw compressor 2, the pressure sensor 3 monitors the pressure of the refrigerant, and the pressure is calculated by a programmable control box to automatically control an electric three-way regulating valve on a hot water pipeline of the hot dry rock heat exchanger so as to automatically control the flow of hot water from the hot dry rock heat exchanger; the screw compressor 2 is connected with the top end of the shell-and-tube condenser 1, and the bottom end of the shell-and-tube condenser 1 is connected with one end of the electromagnetic valve and electronic expansion valve parallel group; the electromagnetic valve and electronic expansion valve parallel group is formed by connecting two groups of electromagnetic valves connected in series and the electronic expansion valve in parallel, and the other end of the electromagnetic valve and electronic expansion valve parallel group is connected with the shell and tube dry evaporator 4; the shell-and-tube dry evaporator 4 is connected to one end of the screw compressor 2 to form a cycle, and meanwhile, the electronic expansion valve controls a connecting pipeline between the screw compressor 2 and the shell-and-tube dry evaporator 4; the refrigerant circulating system adopts environment-friendly refrigerant R134A; the heating hot water circulating system comprises a user circulating pump 6, and the heating energy-saving self-circulating system comprises a hot water reservoir 55, a cold water reservoir 54, a reservoir hot water inlet pipe 56 and a reservoir hot water outlet pipe which are arranged on the hot water reservoir 55, and a reservoir cold water inlet pipe and a reservoir cold water outlet pipe 5 which are arranged on the cold water reservoir 54; the hot water reservoir 55 and the cold water reservoir 54 are connected through a circulating pipeline, and an energy-saving circulating pump 57 is arranged on the circulating pipeline; the reservoir hot water inlet pipe 56 and the reservoir cold water outlet pipe 5 are connected to one side of the shell-and-tube condenser; a water-blocking electromagnetic valve 51 is arranged on a cold water outlet pipe of the reservoir; the reservoir hot water outlet pipe and the reservoir cold water inlet pipe are respectively communicated with a user circulating pump 6; a first energy-saving temperature sensor 53 is arranged on the hot water outlet pipe of the reservoir, and a second energy-saving temperature sensor 52 is arranged on the cold water inlet pipe of the reservoir; a water pressure sensor and a water replenishing electromagnetic three-way valve are also arranged on the cold water inlet pipe of the reservoir; when the water pressure sensor detects that the water pressure in the pipeline is low, water is supplemented through a water supplementing pipeline connected with a water supplementing electromagnetic three-way valve; an insulating layer and a waterproof layer are arranged in the hot water reservoir 55; the hot water circulating system of the hot dry rock heat exchanger comprises a hot dry rock heat source circulating pump, a hot dry rock heat exchanger water outlet pipeline and a hot dry rock heat exchanger water inlet pipeline, the hot dry rock heat exchanger water outlet pipeline and the hot dry rock heat exchanger water inlet pipeline are respectively connected to the shell and tube dry evaporator 4, the hot dry rock heat source circulating pump is arranged on the hot dry rock heat exchanger water inlet pipeline, the hot dry rock heat exchanger water outlet pipeline is provided with an electric three-way regulating valve, and a third branch pipeline of the electric three-way regulating valve is connected to the hot dry rock heat exchanger water inlet pipeline and is positioned between the hot dry rock heat source circulating pump and the hot dry rock heat.
The utility model discloses a theory of operation:
(1) circulating an environment-friendly refrigerant R134A, wherein a high-temperature high-pressure gas refrigerant coming out of a screw compressor 2 enters a shell-and-tube condenser 1, is changed into a medium-temperature high-pressure refrigerant liquid after exchanging heat with heating circulating water in the shell-and-tube condenser 1, enters a shell-and-tube dry evaporator 4 after passing through an electronic expansion valve, exchanges heat with hot water from a hot dry rock heat exchanger in the shell-and-tube dry evaporator 4, absorbs heat, is changed into a low-temperature low-pressure refrigerant gas, and returns to the screw compressor 2;
(2) circulating heating hot water, namely, the heating hot water enters a cold water reservoir 54 after being released by a user, returns to the unit shell-and-tube condenser 1 from the cold water reservoir 54, absorbs heat in the shell-and-tube condenser 1, is heated, then is sent to a hot water reservoir 55, and is sent to a user end from the hot water reservoir 55; when temperature sensors on a hot water outlet pipe of the water storage tank and a cold water inlet pipe of the water storage tank detect that the temperature difference of heating hot water is in a set judgment range, namely the temperature of a user is judged to reach a stable state, at the moment, a PLC control box controls the whole refrigerant circulating system and a hot water circulating system of the dry-hot rock heat exchanger to be in a standby state, the power of the system is reduced, the heating energy-saving self-circulating system starts to work, a water blocking electromagnetic valve 51 on a cold water outlet pipe 5 of the water storage tank cuts off a water path, an energy-saving circulating pump 57 starts to work, water in a cold water storage tank 54 is sent into a; when the temperature sensors on the hot water outlet pipe of the water storage tank and the cold water inlet pipe of the water storage tank detect that the temperature difference of the heating hot water exceeds a set range, the water blocking electromagnetic valve 51 is switched on, the energy-saving circulating pump 57 stops working, and the PLC control box controls the whole refrigerant circulating system and the hot water circulating system of the dry-hot rock heat exchanger to work normally.
(3) The hot water from the dry hot rock heat exchanger releases heat in the shell-and-tube dry evaporator 4 and then returns to the dry hot rock heat exchanger, and the hot water returns to the shell-and-tube dry evaporator 4 after absorbing heat;
(4) the comprehensive COP value of the dry heat rock heat recovery screw type heat pump device reaches more than 6 under the standard working condition, and the peak value reaches more than 10.
The utility model provides a design is passed through heating energy-conservation and is retrieved heating system from circulation system to whole integrated form hot dry rock, carries out the temperature monitoring of heating user side, adjusts the running state of whole device system in real time, opens according to opening of in-service use demand adjusting device and stops, uses more in a flexible way, and the energy of saving system operation is more environmental protection, more energy-conserving.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. An integrated hot dry rock heat recovery screw type heat pump device comprises a PLC control box, a refrigerant circulating system, a heating hot water circulating system, a hot dry rock heat exchanger hot water circulating system and a heating energy-saving self-circulating system, wherein the refrigerant circulating system comprises a screw type compressor, a shell and tube type condenser and a shell and tube dry type evaporator; the heating hot water circulating system comprises a user circulating pump and is characterized in that the heating energy-saving self-circulating system comprises a hot water reservoir, a cold water reservoir, a reservoir hot water inlet pipe and a reservoir hot water outlet pipe which are arranged on the hot water reservoir, and a reservoir cold water inlet pipe and a reservoir cold water outlet pipe which are arranged on the cold water reservoir; the hot water reservoir and the cold water reservoir are connected through a circulating pipeline, and an energy-saving circulating pump is arranged on the circulating pipeline; the reservoir hot water inlet pipe and the reservoir cold water outlet pipe are connected to one side of the shell-and-tube condenser; the reservoir hot water outlet pipe with reservoir cold water inlet tube respectively with user's circulating pump intercommunication.
2. The integrated hot dry rock heat recovery screw heat pump device of claim 1, wherein a first energy-saving temperature sensor is arranged on the hot water outlet pipe of the reservoir, and a second energy-saving temperature sensor is arranged on the cold water inlet pipe of the reservoir.
3. The integrated hot dry rock heat recovery screw heat pump device as claimed in claim 2, wherein a water pressure sensor and a water replenishing electromagnetic three-way valve are further arranged on the cold water inlet pipe of the water storage tank.
4. The integrated hot dry rock heat recovery screw heat pump device of claim 1, wherein a water blocking solenoid valve is arranged on the cold water outlet pipe of the reservoir.
5. The integrated hot dry rock heat recovery screw heat pump unit of claim 1, wherein the hot water reservoir is provided with an insulating layer and a waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387662.XU CN211551746U (en) | 2019-12-26 | 2019-12-26 | Integrated hot dry rock heat recovery screw type heat pump device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922387662.XU CN211551746U (en) | 2019-12-26 | 2019-12-26 | Integrated hot dry rock heat recovery screw type heat pump device |
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| CN211551746U true CN211551746U (en) | 2020-09-22 |
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| CN201922387662.XU Active CN211551746U (en) | 2019-12-26 | 2019-12-26 | Integrated hot dry rock heat recovery screw type heat pump device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939974A (en) * | 2019-12-26 | 2020-03-31 | 格兰立方能源科技(江苏)有限公司 | Integrated hot dry rock heat recovery screw type heat pump device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939974A (en) * | 2019-12-26 | 2020-03-31 | 格兰立方能源科技(江苏)有限公司 | Integrated hot dry rock heat recovery screw type heat pump device |
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