CN115751422B - Zero-output unit cold and heat combined supply waste heat recovery system of supercritical unit low-pressure cylinder - Google Patents
Zero-output unit cold and heat combined supply waste heat recovery system of supercritical unit low-pressure cylinder Download PDFInfo
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- CN115751422B CN115751422B CN202211163178.9A CN202211163178A CN115751422B CN 115751422 B CN115751422 B CN 115751422B CN 202211163178 A CN202211163178 A CN 202211163178A CN 115751422 B CN115751422 B CN 115751422B
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Abstract
The invention relates to the technical field of low-pressure cylinder application, in particular to a cold and heat combined supply waste heat recovery system of a zero-output unit of a supercritical unit low-pressure cylinder, which comprises the following circulating water flow direction when the cold and heat combined supply waste heat recovery system supplies heat: circulating water flows into a cooling tower after heat release and temperature reduction of a condenser through a heat pump room; the external heat supply backwater flow direction when the heat supply of the cold and hot combined heat recovery system is performed is as follows: the external heat supply backwater flows into the heat pump room through the water supply and backwater pipeline to absorb heat and raise temperature and then is collected into the water supply and backwater pipeline again; the circulating water flow direction during cold supply of the cold and heat combined supply waste heat recovery system is as follows: circulating water flows into a heat pump room through a cooling tower to absorb heat and raise temperature, and then flows into the cooling tower again; the external cooling backwater flow direction when the cold and hot combined supply waste heat recovery system supplies cold is as follows: the external cooling backwater flows into the heat pump room through the water supply and backwater pipeline to release heat and cool, and then is converged into the water supply and backwater pipeline again. The invention solves the technical problems that the prior art can only realize the purpose of heat supply through waste heat recovery and can not furthest excavate the utilization rate of the supercritical unit.
Description
Technical Field
The invention relates to the technical field of low-pressure cylinder application, in particular to a zero-output unit cold and heat combined supply waste heat recovery system of a supercritical unit low-pressure cylinder.
Background
The low-pressure cylinder is an important component of the steam turbine and is used for converting the heat energy of high-temperature steam into mechanical energy rotating at a high speed and driving the generator to cut magnetic lines of force to convert the magnetic lines of force into electric energy;
the low-pressure zero-output refers to an operation mode that the exhaust steam of the low-pressure cylinder is led out through a steam extraction pipeline, and only a small amount of cooling steam is reserved to enter the low-pressure cylinder to take away heat generated by friction between rotor blades and an internal working medium, so that the low-pressure cylinder does not do work;
the prior patent CN 114110714A discloses a low-pressure cylinder small-flow working condition waste heat deep recovery heat supply system and an application method thereof, wherein the system can deeply recover low-grade waste heat of a low-pressure cylinder small-flow operation unit operated under the low-pressure cylinder small-flow working condition, is used for heating heat supply network circulating water, and realizes optimization of a unit heat supply operation flow, so that the heat supply potential and heat supply economy of the unit are furthest excavated, but the system can only realize the purpose of heat supply through waste heat recovery and fails to furthest excavate the utilization rate of a supercritical unit.
Disclosure of Invention
The invention provides a supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system which is used for solving the technical problems in the background technology.
In order to solve the technical problems, the invention discloses a zero-output unit cold and heat combined supply waste heat recovery system of a supercritical unit low-pressure cylinder, which comprises a turbine low-pressure cylinder, a condenser, a heat pump room, a cooling tower and a water supply and return pipeline;
the circulating water flow direction when the heat supply of the cold and hot combined supply waste heat recovery system is carried out is as follows: circulating water flows into a cooling tower after heat release and temperature reduction of a condenser through a heat pump room;
the external heat supply backwater flow direction when the heat supply of the cold and hot combined heat recovery system is performed is as follows: the external heat supply backwater flows into the heat pump room through the water supply and backwater pipeline to absorb heat and raise temperature and then is collected into the water supply and backwater pipeline again;
the circulating water flow direction during cold supply of the cold and heat combined supply waste heat recovery system is as follows: circulating water flows into a heat pump room through a cooling tower to absorb heat and raise temperature, and then flows into the cooling tower again;
the external cooling backwater flow direction when the cold and hot combined supply waste heat recovery system supplies cold is as follows: the external cooling backwater flows into the heat pump room through the water supply and backwater pipeline to release heat and cool, and then is converged into the water supply and backwater pipeline again.
Preferably, the method further comprises:
the system comprises a heat supply waste heat recovery pipeline and a cold supply waste heat recovery pipeline, wherein the heat supply waste heat recovery pipeline is used for conveying circulating water when the cold and hot combined supply waste heat recovery system supplies heat, and the cold supply waste heat recovery pipeline is used for conveying the circulating water when the cold and hot combined supply waste heat recovery system supplies cold;
And the hot waste heat supply recovery pipeline, the cold waste heat supply recovery pipeline and the water supply and return pipeline are provided with a plurality of flow valves.
Preferably, the steam turbine low-pressure cylinder steam outlet is connected with the steam inlet end of the condenser, the circulating water outlet pipeline of the condenser is communicated with one end of the heat supply waste heat recovery pipeline, the other end of the heat supply waste heat recovery pipeline is communicated with the cooling tower, and the heat pump room is connected on the heat supply waste heat recovery pipeline and is positioned between the condenser and the cooling tower;
one end of the cold supply waste heat recovery pipeline is communicated with the heat pump room, and the other end of the cold supply waste heat recovery pipeline is communicated with the cooling tower;
the water supply and return pipeline penetrates through the heat pump room, and the heat pump room is used for realizing heat exchange between circulating water in the heat supply and waste heat recovery pipeline and/or the cold supply and waste heat recovery pipeline and liquid in the water supply and return pipeline.
Preferably, the liquid in the water supply and return pipeline comprises external heat supply backwater and external cold supply backwater;
when the heat and cold combined supply waste heat recovery system supplies heat, the heat pump room is used for realizing heat exchange between circulating water in the heat supply waste heat recovery pipeline and external heat supply backwater in the water supply backwater pipeline;
when the cold and hot combined supply waste heat recovery system supplies cold, the heat pump room is used for realizing heat exchange between circulating water in the cold supply waste heat recovery pipeline and external cold supply backwater in the water supply backwater pipeline.
Preferably, the heat supply waste heat recovery pipeline comprises:
the heat supply main pipeline is characterized in that one end of the heat supply main pipeline is communicated with a circulating water outlet pipeline of the condenser, a first heat supply branch and a second heat supply branch are communicated with the other end of the heat supply main pipeline, one end of the first heat supply branch, which is far away from the heat supply main pipeline, is communicated with the cooling tower, one end of the second heat supply branch, which is far away from the heat supply main pipeline, penetrates through the heat pump room and is communicated with the cooling tower, and a branch connecting pipeline is communicated with the part, which is positioned between the heat pump room and the cooling tower, of the second heat supply branch;
the cold supply waste heat recovery pipeline comprises:
the cold water supply pipeline and the cold water supply and discharge pipeline, cold water supply pipeline one end and cooling tower intercommunication, cold water supply pipeline other end and heat pump room intercommunication, cold water supply pipeline one end with the second heat supply branch road is located the part intercommunication between heat pump room and the cooling tower, cold water supply pipeline other end and cooling tower intercommunication.
Preferably, a plurality of electric compression heat pumps are arranged in the heat pump room, and circulating water is led out from the second heat supply branch and/or the cold supply water inlet pipeline and then evenly enters the electric compression heat pumps.
Preferably, a water quality improving component of the cold and hot combined supply waste heat recovery system is arranged in the cooling tower and is used for sterilizing and removing impurities from water in the cooling tower.
Preferably, the water quality improvement component of the cold and hot combined supply waste heat recovery system comprises:
the transparent mounting plate is fixedly connected to the inner wall of the cooling tower and comprises a screw mounting part and an ultraviolet lamp mounting part, and the screw mounting part and the ultraviolet lamp mounting part are connected through a connecting frame;
a plurality of ultraviolet lamps which are uniformly arranged, wherein the ultraviolet lamps are fixedly connected in the ultraviolet lamp mounting part;
two sets of bilateral symmetry's filter screen subassembly, filter screen subassembly is used for filtering the aquatic impurity in the cooling tower, filter screen subassembly includes:
the installation rotating shaft is rotationally connected to the screw installation part, a first driving piece is arranged on the installation rotating shaft, and the first driving piece is used for driving the installation rotating shaft to rotate;
the filter screen storage block is fixedly connected to one end, far away from the screw rod installation part, of the installation rotating shaft;
the filter screen comprises two symmetrically arranged filter screens, wherein two symmetrically arranged first sliding blocks are fixedly connected to the filter screens, the first sliding blocks are slidably connected into the filter screen storage blocks, first elastic pieces are fixedly connected to the filter screens, and one ends, far away from the filter screens, of the first elastic pieces are fixedly connected with the inner walls of the filter screen storage blocks;
The cooling tower comprises a filter screen storage block, a first electromagnet and a second electromagnet, wherein the filter screen storage block is fixedly connected with the first electromagnet, the second electromagnet is fixedly connected with the inner wall of the cooling tower, and the first electromagnet is used for being attracted with the second electromagnet.
Preferably, the method further comprises: the clean subassembly of cooling tower inner wall, the clean subassembly of cooling tower inner wall includes:
the screw is fixedly connected to the screw mounting part;
the nut is in threaded connection with the screw rod, a second driving piece is arranged on the nut and used for driving the nut to rotate, and a first chamber is arranged on the nut;
the cylinder expansion piece is fixedly connected in the first cavity;
the connecting rod is fixedly connected to the working end of the cylinder expansion piece;
the cleaning head connecting rod is sleeved at one end of the connecting rod, far away from the cylinder telescopic piece, and one end of the connecting rod, far away from the cylinder telescopic piece, is fixedly connected with a second sliding block which is slidably connected with the inner wall of the cleaning head connecting rod, and a second elastic piece is fixedly connected between the connecting rod and the inner wall of the cleaning head connecting rod;
The cleaning head is hinged to the cleaning head connecting rod, two symmetrically arranged connecting rods are hinged to the cleaning head connecting rod, one end of each connecting rod, which is far away from the cleaning head connecting rod, is hinged to a third sliding block, the third sliding block is slidably connected to the cleaning head, a third driving piece is arranged on the third sliding block and is used for driving the third sliding block to slide along the cleaning head.
Preferably, the method further comprises: an auxiliary flush assembly, the auxiliary flush assembly comprising:
the first abutting blocks are fixedly connected to the connecting rod, the two second abutting blocks are respectively connected in two second cavities in an up-down sliding mode, the two second cavities are symmetrically arranged on two sides of the first cavity, and one end of each second abutting block in the first cavity is used for mutually abutting with the first abutting block;
the water bag connecting block is fixedly connected to one end of the second cavity, which is positioned in the second cavity, a water bag is fixedly connected to the water bag connecting block, and a third elastic piece is sleeved on the second abutting block;
the cleaning head comprises a water inlet short pipe and a water outlet short pipe, wherein the water inlet short pipe and the water outlet short pipe are fixedly connected to a nut, one end of the water inlet short pipe and one end of the water outlet short pipe are located in a water bag, the other end of the water inlet short pipe and one end of the water outlet short pipe are located outside the nut, one-way valves are arranged in the water inlet short pipe and the water outlet short pipe, a water outlet hose is sleeved at one end of the water outlet short pipe, one end of the water outlet hose, which is far away from the water outlet short pipe, is connected to a pressurizing spray gun, and the pressurizing spray gun is connected to the side wall of the cleaning head.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
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 the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the flow direction of liquid in a heat supply system of a heat and cold combined supply waste heat recovery system.
Fig. 2 is a schematic diagram of the flow direction of the liquid in the system when the heat recovery system is supplied with cold.
Fig. 3 is a schematic flow diagram of the liquid in the system when the heat recovery system for combined heat and cold supply according to embodiment 6 of the present invention supplies heat.
Fig. 4 is a schematic flow diagram of a liquid in a system for cooling a heat recovery system with combined heat and cold supply according to embodiment 6 of the present invention.
FIG. 5 is a schematic diagram of a water quality improvement assembly of the heat and cold combined supply waste heat recovery system of the present invention.
Fig. 6 is an enlarged view of a portion of fig. 5 a in accordance with the present invention.
Fig. 7 is an enlarged view of a portion of fig. 5B in accordance with the present invention.
Fig. 8 is an enlarged view of a portion of fig. 5C in accordance with the present invention.
In the figure: 1. a low-pressure cylinder of the steam turbine; 2. a condenser; 3. a heat pump house; 4. a cooling tower; 5. a water supply and return pipeline; 6. a heat supply waste heat recovery pipeline; 600. a main heat supply pipeline; 601. a first heat supply branch; 602. a second heat supply branch; 603. the branch is connected with a pipeline; 7. a cold supply waste heat recovery pipeline; 700. a cold water supply pipeline; 701. a cold water supply and discharge pipeline; 8. a flow valve; 9. a water quality improvement component of a cold and hot combined supply waste heat recovery system; 900. a transparent mounting plate; 9000. a screw mounting portion; 9001. an ultraviolet lamp mounting part; 9002. a connecting frame; 9003. an ultraviolet lamp; 9004. installing a rotating shaft; 9005. a filter screen accommodating block; 9006. a filter screen; 9007. a first slider; 9008. a first elastic member; 9009. a first electromagnet; 901. a second electromagnet; 902. a cooling tower inner wall cleaning assembly; 9020. a screw; 9021. a nut; 9022. a first chamber; 9023. a second chamber; 9024. a cylinder expansion piece; 9025. a connecting rod; 9026. a cleaning head connecting rod; 9027. a second slider; 9028. a second elastic member; 9029. a cleaning head; 903. a connecting rod; 9030. a third slider; 9031. a first abutment block; 9032. a second abutment block; 9033. a water bag connecting block; 9034. a water bag; 9035. a third elastic member; 9036. a water inlet short pipe; 9037. a drain pipe nipple; 9038. a one-way valve; 9039. a drain hose; 904. a pressurized spray gun.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present invention.
The invention provides the following examples:
example 1
The embodiment of the invention provides a zero-output unit cold and heat combined supply waste heat recovery system of a supercritical unit low-pressure cylinder, which is shown in figures 1-8 and comprises a turbine low-pressure cylinder 1, a condenser 2, a heat pump room 3, a cooling tower 4 and a water supply and return pipeline 5;
The circulating water flow direction when the heat supply of the cold and hot combined supply waste heat recovery system is carried out is as follows: circulating water flows into the cooling tower 4 after heat release and temperature reduction from the condenser 2 through the heat pump room 3;
the external heat supply backwater flow direction when the heat supply of the cold and hot combined heat recovery system is performed is as follows: the external heat supply backwater flows into the heat pump room 3 through the water supply and backwater pipeline 5 to absorb heat and raise temperature and then is collected into the water supply and backwater pipeline 5 again;
the circulating water flow direction during cold supply of the cold and heat combined supply waste heat recovery system is as follows: circulating water flows into the heat pump room 3 through the cooling tower 4 to absorb heat and raise temperature, and then flows into the cooling tower 4 again;
the external cooling backwater flow direction when the cold and hot combined supply waste heat recovery system supplies cold is as follows: the external cooling backwater flows into the heat pump room 3 through the water supply and backwater pipeline 5 to release heat and cool, and then is collected into the water supply and backwater pipeline 5 again.
The working principle and the beneficial effects of the technical scheme are as follows:
when the supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system supplies heat in winter:
circulating water flows into the cooling tower 4 after being subjected to heat release and temperature reduction through the heat pump room 3 from the condenser 2, and meanwhile, external heat supply backwater flows into the heat pump room 3 through the heat supply backwater pipeline 5 to absorb heat and raise temperature and then is collected into the heat supply backwater pipeline 5 again, so that the purpose of heat supply of the circulating water waste heat of the low-pressure cylinder zero-output unit of the supercritical unit is realized, and the heat pump room 3 realizes heat exchange between the circulating water and the external heat supply backwater;
The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system is used for cooling in summer:
circulating water flows into the heat pump room 3 through the cooling tower 4 to absorb heat and raise temperature and then flows into the cooling tower 4 again, meanwhile, external cooling backwater flows into the heat pump room 3 through the water supply and backwater pipeline 5 to release heat and lower temperature and then is collected into the water supply and backwater pipeline 5 again, so that the purpose of cooling by the residual heat of the circulating water of the low-pressure cylinder zero-output unit of the supercritical unit is realized, and the heat pump room 3 realizes heat exchange between the circulating water and the external cooling backwater;
the invention can realize the purpose of heat supply and the purpose of cold supply through waste heat recovery, and greatly digs the utilization rate of the supercritical unit.
Example 2
On the basis of the above embodiment 1, the method further includes:
the system comprises a heat supply waste heat recovery pipeline 6 and a cold supply waste heat recovery pipeline 7, wherein the heat supply waste heat recovery pipeline 6 is used for conveying circulating water when the cold and hot combined supply waste heat recovery system supplies heat, and the cold supply waste heat recovery pipeline 7 is used for conveying the circulating water when the cold and hot combined supply waste heat recovery system supplies cold;
the exhaust port of the low-pressure cylinder 1 of the steam turbine is connected with the steam inlet end of the condenser 2, the circulating water outlet pipeline of the condenser 2 is communicated with one end of the heat supply waste heat recovery pipeline 6, the other end of the heat supply waste heat recovery pipeline 6 is communicated with the cooling tower 4, and the heat pump room 3 is connected to the heat supply waste heat recovery pipeline 6 and is positioned between the condenser 2 and the cooling tower 4;
One end of the cold supply waste heat recovery pipeline 7 is communicated with the heat pump room 3, and the other end of the cold supply waste heat recovery pipeline 7 is communicated with the cooling tower 4;
the water supply and return pipeline 5 penetrates through the heat pump room 3, and the heat pump room 3 is used for realizing heat exchange between circulating water in the hot water supply and waste heat recovery pipeline 6 and/or the cold water supply and waste heat recovery pipeline 7 and liquid in the water supply and return pipeline 5;
the liquid in the water supply and return pipeline 5 comprises external heat supply backwater and external cold supply backwater;
when the heat and heat combined supply waste heat recovery system supplies heat, the heat pump room 3 is used for realizing heat exchange between circulating water in the heat supply waste heat recovery pipeline 6 and external heat supply backwater in the water supply backwater pipeline 5;
when the cold and hot combined supply waste heat recovery system supplies cold, the heat pump room 3 is used for realizing heat exchange between circulating water in the cold supply waste heat recovery pipeline 7 and external cold supply backwater in the water supply backwater pipeline 5;
and a plurality of flow valves 8 are arranged on the hot waste heat supply and recovery pipeline 6, the cold waste heat supply and recovery pipeline 7 and the water supply and return pipeline 5.
The working principle and the beneficial effects of the technical scheme are as follows: when the supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system supplies heat in winter:
the steam at the steam outlet of the low-pressure cylinder 1 of the steam turbine is changed into circulating water through a condenser 2, the circulating water enters a heat supply waste heat recovery pipeline 6 through a circulating water outlet pipeline of the condenser 2, after heat is released by the circulating water flowing through a heat pump room 3, the circulating water flows into a cooling tower 4 for cooling, and meanwhile, water flowing out of the water supply return pipeline 5 after passing through the heat pump room 3 absorbs heat through the heat pump room 3, so that the temperature of the water flowing out of the water supply return pipeline 5 after passing through the heat pump room 3 is higher than the temperature before the water flowing into the heat pump room 3, and the purpose of heat supply of the circulating water waste heat of the zero-output unit of the low-pressure cylinder of the supercritical unit is realized, wherein the heat pump room 3 realizes heat exchange between the circulating water in the heat supply waste heat recovery pipeline 6 and the external heat supply backwater in the water supply return pipeline 5;
Such as: the temperature of circulating water flowing out of a low-pressure cylinder zero-output unit of the supercritical unit through a circulating water outlet pipeline of a condenser 2 is 8000-10000 t/h, the temperature of the circulating water after heat release of the circulating water is 20.5 ℃, the temperature of the circulating water in a water supply return pipeline 5 is called external heat supply backwater at the moment, the temperature of the external heat supply backwater before flowing through the heat pump room 3 is 50 ℃ and the temperature of the external heat supply backwater after heat absorption of the circulating water in the heat pump room 3 is 60 ℃ when the flow rate of the external heat supply backwater is about 5000t/h, and therefore the purpose of heat supply of circulating water waste heat is achieved;
the supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system is used for cooling in summer:
circulating water in the cooling tower 4 flows back into the cooling tower 4 after passing through the cold supply waste heat recovery pipeline 7 and the heat pump room 3, absorbs heat when flowing through the heat pump room 3, flows into the cooling tower 4 for cooling, and meanwhile, water in the water return pipeline 5 releases heat when flowing through the heat pump room 3, so that the temperature of water flowing out of the water return pipeline 5 after passing through the heat pump room 3 is lower than the temperature before the water in the water return pipeline 5 flows into the heat pump room 3, and the purpose of cooling by the waste heat of the circulating water of the zero-output unit of the supercritical unit low-pressure cylinder is realized, wherein the heat pump room 3 realizes heat exchange between the circulating water in the cold supply waste heat recovery pipeline 7 and external cooling and backwater in the water return pipeline 5;
Such as: the temperature of the circulating water flowing into the cold supply waste heat recovery pipeline 7 from the cooling tower 4 is 32 ℃, the circulating water passes through the heat pump room 3, the temperature of the circulating water rises to 37 ℃ after heat release, at the moment, the temperature of the external cold supply backwater in the water supply and backwater pipeline 5 is 14 ℃ before the external cold supply backwater flows through the heat pump room 3, and the temperature of the circulating water after heat release of the circulating water flowing through the heat pump room 3 becomes 4 ℃, so that the purpose of cooling the circulating water waste heat is realized.
Example 3
On the basis of embodiment 2, the heat supply waste heat recovery line 6 includes:
the heat supply main pipeline 600, one end of the heat supply main pipeline 600 is communicated with a circulating water pipeline of the condenser 2, a first heat supply branch 601 and a second heat supply branch 602 are communicated with the other end of the heat supply main pipeline 600, one end of the first heat supply branch 601, which is far away from the heat supply main pipeline 600, is communicated with the cooling tower 4, one end of the second heat supply branch 602, which is far away from the heat supply main pipeline 600, penetrates through the heat pump room 3 and then is communicated with the cooling tower 4, and a branch connecting pipeline 603 is communicated with a part of the second heat supply branch 602, which is positioned between the heat pump room 3 and the cooling tower 4;
the cold supply waste heat recovery pipe 7 includes:
a cold water supply pipeline 700 and a cold water supply and discharge pipeline 701, wherein one end of the cold water supply pipeline 700 is communicated with the cooling tower 4, the other end of the cold water supply pipeline 700 is communicated with the heat pump room 3, one end of the cold water supply and discharge pipeline 701 is communicated with a part of the second heat supply branch 602 positioned between the heat pump room 3 and the cooling tower 4, and the other end of the cold water supply pipeline 700 is communicated with the cooling tower 4;
The heat pump room 3 is internally provided with a plurality of electric compression heat pumps, and the circulating water is led out by the second heat supply branch 602 and/or the cold supply water inlet pipeline 700 and then evenly distributed into the electric compression heat pumps.
The working principle of the technical scheme is as follows: when heating, circulating water flows out from a circulating water outlet pipeline of the condenser 2 and enters the heat supply main pipeline 600, one part of the circulating water flowing out from the heat supply main pipeline 600 enters the first heat supply branch 601, the other part of the circulating water enters the second heat supply branch 602, the circulating water entering the first heat supply branch 601 finally flows into the cooling tower 4, the circulating water entering the second heat supply branch 602 releases heat and lowers the temperature when flowing through the heat pump room 3, and meanwhile, the circulating water is supplied to the water return pipeline 5 to supply heat and return water to the outside when flowing through the heat pump room 3 to absorb heat and raise the temperature, so that the heat supply purpose is realized;
during cooling, circulating water flows out to the heat pump room 3 through the cold water supply pipeline 700 to absorb heat and raise temperature, then flows into the cooling tower 4 through the cold water supply and discharge pipeline 701 to cool, and simultaneously, heat is released and cooled when external heat supply backwater in the water return pipeline 5 passes through the heat pump room 3, so that the purpose of cooling is achieved.
Example 4
On the basis of the embodiment 1, a water quality improving component 9 of a cold and hot combined supply waste heat recovery system is arranged in the cooling tower 4, and the water quality improving component 9 of the cold and hot combined supply waste heat recovery system is used for sterilizing and removing impurities from water in the cooling tower 4;
The water quality improvement component 9 of the cold and hot combined supply waste heat recovery system comprises:
the transparent mounting plate 900, the transparent mounting plate 900 is fixedly connected to the inner wall of the cooling tower 4, the transparent mounting plate 900 comprises a screw mounting portion 9000 and an ultraviolet lamp mounting portion 9001, and the screw mounting portion 9000 and the ultraviolet lamp mounting portion 9001 are connected through a connecting frame 9002;
a plurality of ultraviolet lamps 9003 which are uniformly arranged, wherein the ultraviolet lamps 9003 are fixedly connected in the ultraviolet lamp mounting part 9001;
two sets of bilateral symmetry's filter screen subassembly, filter screen subassembly is used for filtering impurity in the cooling tower 4 interior aquatic, filter screen subassembly includes:
the installation rotating shaft 9004 is rotatably connected to the screw installation portion 9000, and a first driving piece is arranged on the installation rotating shaft 9004 and is used for driving the installation rotating shaft 9004 to rotate;
the filter screen accommodating block 9005, wherein the filter screen accommodating block 9005 is fixedly connected to one end of the installation rotating shaft 9004 away from the screw installation portion 9000;
the filter screen 9006 of two symmetrical arrangement, fixedly connected with two symmetrical arrangement's first slider 9007 on the filter screen 9006, first slider 9007 sliding connection is in filter screen accommodating block 9005, fixedly connected with first elastic component 9008 on the filter screen 9006, first elastic component 9008 keep away from the one end of filter screen 9006 with filter screen accommodating block 9005 inner wall fixed connection;
The cooling tower comprises a first electromagnet 9009 and a second electromagnet 901, wherein the first electromagnet 9009 is fixedly connected to one end of a filter screen 9006, which is far away from the filter screen accommodating block 9005, the second electromagnet 901 is fixedly connected to the inner wall of the cooling tower 4, and the first electromagnet 9009 is used for being mutually attracted with the second electromagnet 901.
The working principle and the beneficial effects of the technical scheme are as follows: when the ultraviolet lamp 9003 works, the ultraviolet lamp 9003 is opened, the ultraviolet rays can destroy the molecular structure of deoxyribonucleic acid or ribonucleic acid in microorganism organism cells, so that growing cells and regenerative cells die, the sterilization and disinfection effects are achieved, the cooling towers are used for a long time, bacteria can grow, wherein typical bacteria are Legionella bacteria, the bacteria can cause infectious diseases, the surrounding 800 meters of each cooling tower can be influenced, and the design of the ultraviolet lamp 9003 can avoid the bacteria from growing;
meanwhile, the first driving piece drives the installation rotating shaft 9004 to rotate, the installation rotating shaft 9004 rotates to drive the filter screen accommodating block 9005 to rotate, the filter screen 9006 moves towards the direction away from the circle center of the filter screen accommodating block 9005 under the action of centrifugal force, at the moment, the first sliding block 9007 slides along the filter screen accommodating block 9005, meanwhile, the first elastic piece 9008 is stretched, when the first electromagnet 9009 is close to the second electromagnet 901, the first electromagnet 9009 is attracted to the second electromagnet 901, at the moment, the filter screen 9006 is in a working state, impurities in water in the cooling tower 4 can be adsorbed, and the phenomenon that the cold and hot combined supply waste heat recovery system pipeline is blocked due to the existence of the impurities is avoided.
Example 5
On the basis of embodiment 4, further comprising: a cooling tower inner wall cleaning assembly 902, the cooling tower inner wall cleaning assembly 902 comprising:
a screw 9020, the screw 9020 being fixedly connected to the screw mounting portion 9000;
the nut 9021 is in threaded connection with the screw 9020, a second driving piece is arranged on the nut 9021 and used for driving the nut 9021 to rotate, and a first cavity 9022 is arranged on the nut 9021;
a cylinder extension 9024, the cylinder extension 9024 being fixedly connected within the first chamber 9022;
the connecting rod 9025, wherein the connecting rod 9025 is fixedly connected to the working end of the cylinder expansion piece 9024;
the cleaning head connecting rod 9026 is sleeved at one end of the connecting rod 9025 away from the cylinder expansion piece 9024, a second sliding block 9027 is fixedly connected to one end of the connecting rod 9025 away from the cylinder expansion piece 9024, the second sliding block 9027 is slidingly connected to the inner wall of the cleaning head connecting rod 9026, and a second elastic piece 9028 is fixedly connected between the connecting rod 9025 and the inner wall of the cleaning head connecting rod 9026;
the cleaning head 9029 is hinged to the cleaning head connecting rod 9026, two symmetrically arranged connecting rods 903 are hinged to the cleaning head connecting rod 9026, a third sliding block 9030 is hinged to one end of each connecting rod 903, which is far away from the cleaning head connecting rod 9026, of each connecting rod 9030, the third sliding block 9030 is connected to the cleaning head 9029 in a sliding mode, and a third driving piece is arranged on the third sliding block 9030 and used for driving the third sliding block 9030 to slide along the cleaning head 9029;
Further comprises: an auxiliary flush assembly, the auxiliary flush assembly comprising:
the first abutting block 9031 and two symmetrically arranged second abutting blocks 9032, wherein the first abutting block 9031 is fixedly connected to the connecting rod 9025, the two second abutting blocks 9032 are respectively connected in two second chambers 9023 in a vertical sliding mode, the two second chambers 9023 are symmetrically arranged on two sides of the first chamber 9022, and one end of the second abutting block 9032, which is positioned in the first chamber 9022, is used for mutually abutting with the first abutting block 9031;
the water bag connecting block 9033, wherein the water bag connecting block 9033 is fixedly connected to one end of the second chamber 9023 located in the second chamber 9023, a water bag 9034 is fixedly connected to the water bag connecting block 9033, and a third elastic piece 9035 is sleeved on the second abutting block 9032;
the water inlet short pipe 9036 and the water outlet short pipe 9037 are fixedly connected to the nut 9021, one end of the water inlet short pipe 9036 and one end of the water outlet short pipe 9037 are located in the water bag 9034, the other end of the water inlet short pipe and one end of the water outlet short pipe are located outside the nut 9021, one-way valves 9038 are arranged in the water inlet short pipe 9036 and the water outlet short pipe 9037, one end of the water outlet short pipe 9037 located outside the nut 9021 is sleeved with a water outlet hose 9039, one end of the water outlet hose 9039, far away from the water outlet short pipe 9037, is connected to the pressurizing spray gun 904, and the pressurizing spray gun 904 is connected to the side wall of the cleaning head 9029.
The working principle and the beneficial effects of the technical scheme are as follows: when the cooling tower inner wall cleaning assembly 902 is used, the cylinder expansion piece 9024 is extended to push the connecting rod 9025 out of the nut 9021, then the second driving piece drives the nut 9021 to rotate, the nut 9021 rotates to drive the cleaning head connecting rod 9026 to move along the connecting rod 9025 in a direction away from the nut 9021, so that the cleaning head 9029 is attached to the inner wall of the cooling tower 4, along with the rotation of the nut 9021, the cleaning head 9029 can spirally move along the inner wall of the cooling tower 4 to comprehensively clean the inner wall of the cooling tower 4, and dirt after cleaning is attached to the filter screen 9006 when the dirt is moved to the filter screen 9006 under the drive of water;
before and after cleaning the inner wall of the cooling tower 4 by using the cleaning head 9029, the cylinder telescopic piece 9024 stretches back and forth in a reciprocating manner, so that the first abutting block 9031 is abutted back and forth with the second abutting block 9032, the second abutting block 9032 is driven to move up and down by moving up and down to drive the water bag connecting block 9033 to move up and down, so that the water bag 9034 is squeezed back and forth, water in the cooling tower 4 enters the water bag 9034 through the water inlet short pipe 9036, is sprayed to the inner wall of the cooling tower 4 from the water outlet short pipe 9037 through the water outlet hose 9039 and the pressurizing spray gun 904 in sequence, further cleaning is carried out on the inner wall of the cooling tower 4, and cleaning reliability of the inner wall cleaning assembly 902 of the cooling tower is guaranteed.
Example 6
On the basis of embodiment 1, as shown in fig. 3-4, further comprising: the heat pump room fault monitoring system is used for monitoring the running condition of the heat pump room 3 and giving an alarm prompt when the running condition of the heat pump room 3 is poor, and comprises:
the first temperature sensor is arranged at the water inlet end of the circulating water in the heat pump room 3 and is used for detecting the temperature of the circulating water flowing into the heat pump room 3;
the second temperature sensor is arranged at the water outlet end of the circulating water of the heat pump room 3 and is used for detecting the temperature of the circulating water flowing out of the heat pump room 3;
the third temperature sensor is arranged at the inflow end of the water supply and return pipeline of the heat pump room 3 and is used for detecting the temperature of liquid at the inflow end of the water supply and return pipeline; wherein, when the heat supply of the heat recovery system is performed by the combined heat and cold supply and waste heat recovery system, the liquid in the water supply and return pipeline 5 is the return water for external heat supply, at the moment, the third temperature sensor is used for detecting the temperature of the return water for external heat supply flowing into the heat pump room 3, when the cold and hot combined supply waste heat recovery system supplies cold, the liquid in the water supply and return pipeline 5 is the external cold supply and return water, and the third temperature sensor is used for detecting the temperature of the external cold supply and return water flowing into the heat pump room 3;
The fourth temperature sensor is arranged at the outflow end of the water supply and return pipeline of the heat pump room 3 and is used for detecting the temperature of liquid at the outflow end of the water supply and return pipeline; wherein, when the heat and cold combined supply waste heat recovery system supplies heat, the liquid in the water supply and return pipeline 5 is the external heat supply backwater, the fourth temperature sensor is used for detecting the temperature of the external heat supply backwater flowing out of the heat pump room 3, when the cold and hot combined supply waste heat recovery system supplies cold, the liquid in the water supply and return pipeline 5 is the external cold supply and return water, and the fourth temperature sensor is used for detecting the temperature of the external cold supply and return water flowing out of the heat pump room 3;
the timer is arranged on the heat pump room 3 and is used for detecting the total working duration of the heat pump room 3;
the controller, the alarm, the controller with first temperature sensor, second temperature sensor, third temperature sensor, fourth temperature sensor, time-recorder and alarm electricity are connected, the controller is based on first temperature sensor, second temperature sensor, third temperature sensor, fourth temperature sensor and time-recorder control the alarm is reported to the police, include the following step:
step one: based on the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the timer and the formula (1), calculating the actual working efficiency of the heat pump house 3 when the cold and hot combined supply waste heat recovery system supplies heat:
Wherein, the liquid crystal display device comprises a liquid crystal display device,
the actual working efficiency of the heat pump house 3 when supplying heat for the combined heat and cold supply waste heat recovery system is +.>
For the detection value of the first temperature sensor during heating, < >>
For the detection value of the second temperature sensor during heating, < >>
For the detection value of the third temperature sensor during heating, < >>
For the detection value of the fourth temperature sensor during heating, < >>
The loss coefficient of the self-heating heat exchange efficiency of the heat pump room 3 is 0.23-0.68%>
The value of (2) increases with the increase of the total duration of use of the heat pump house 3,/v>
Is based on the logarithm of 10 +.>
For the total volume of the effective heat exchange of the heat pump house 3, < + >>
For the heat exchange coefficient of the heat pump house 3 +.>
For the total surface area of the circulating water column flowing through the heat pump room 3 +.>
The effective area coefficient of the total surface area of the water column of the circulating water flowing through the heat pump room 3 is 0.82-0.94%>
For the total surface area of the water column of the external heat supply backwater flowing through the heat pump room 3>
The effective area coefficient of the total surface area of the water column of the external heat supply backwater flowing through the heat pump room 3 is 0.82-0.94%>
For the detection value of the timer, +.>
For circulating water during heatingSpecific heat capacity, is->
For the density of the circulating water during heating, < >>
Is the specific heat capacity of the external heat supply backwater during heat supply>
The density of the external heat supply return water is used for heat supply;
Step two: based on the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the timer and the formula (2), calculating the actual working efficiency of the heat pump house 3 when the cold and hot combined supply waste heat recovery system supplies cold:
wherein, the liquid crystal display device comprises a liquid crystal display device,
the actual working efficiency of the heat pump house 3 when supplying cold for the combined cold and heat supply waste heat recovery system is>
For the detection value of the first temperature sensor during cooling, < >>
For the detection value of the second temperature sensor during cooling, < >>
For the detection value of the third temperature sensor during cooling,/->
For the detection value of the fourth temperature sensor during heating, < >>
For the specific heat capacity of circulating water during cooling>
For the density of the circulating water during cooling->
The specific heat capacity of the external heat supply backwater during cooling is +.>
The density of the external heat supply return water is used for cooling;
step three: when the cold and hot combined supply waste heat recovery system supplies heat, the controller compares the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat with the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat, and if the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat is smaller than the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat, the alarm alarms;
When the cold and hot combined supply waste heat recovery system supplies cold, the controller compares the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold with the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold, and if the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold is smaller than the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold, the alarm gives an alarm.
The working principle and the beneficial effects of the technical scheme are as follows: when the cold and hot combined supply waste heat recovery system supplies heat, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor and the timer detect physical quantities in the working process of the heat pump room 3 in real time, and the detection results of the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor and the timer are combined with the formula (1) to calculate the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold in real time, so that the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat is monitored, and when the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat is smaller than the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies heat, the alarm alarms, and at the moment, the working efficiency of the heat pump room 3 is proved to be reduced when the heat pump room 3 fails, and workers are required to be reminded of overhauling the heat pump room 3 in real time, so that the cold and hot combined supply waste heat recovery system of the supercritical unit low-pressure cylinder zero-output unit is ensured;
When the cold and hot combined supply waste heat recovery system supplies cold, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor and the timer detect physical quantities in the working process of the heat pump room 3 in real time, and the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold is calculated in real time by combining the detection results of the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor and the timer with the formula (2), when the actual working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold is smaller than the preset working efficiency of the heat pump room 3 when the cold and hot combined supply waste heat recovery system supplies cold, the alarm gives an alarm, and at the moment, the working efficiency is reduced when the heat pump room 3 fails to cause the cold supply of the heat pump room 3, so that staff is required to be reminded of overhauling the heat pump room 3 in time, and normal cold supply of the cold and hot combined supply waste heat recovery system of the low-pressure cylinder zero-output unit of the supercritical unit is ensured.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The zero-output unit cold and heat combined supply waste heat recovery system of the supercritical unit low-pressure cylinder is characterized by comprising a turbine low-pressure cylinder (1), a condenser (2), a heat pump room (3), a cooling tower (4) and a water supply and return pipeline (5);
the circulating water flow direction when the heat supply of the cold and hot combined supply waste heat recovery system is carried out is as follows: circulating water flows into a cooling tower (4) after being subjected to heat release and temperature reduction through a heat pump room (3) from a condenser (2);
the external heat supply backwater flow direction when the heat supply of the cold and hot combined heat recovery system is performed is as follows: the external heat supply backwater flows into the heat pump room (3) through the heat supply backwater pipeline (5) to absorb heat and raise temperature and then flows into the heat supply backwater pipeline (5) again;
the circulating water flow direction during cold supply of the cold and heat combined supply waste heat recovery system is as follows: circulating water flows into the heat pump room (3) through the cooling tower (4) to absorb heat and raise temperature, and then flows into the cooling tower (4) again;
the external cooling backwater flow direction when the cold and hot combined supply waste heat recovery system supplies cold is as follows: the external cooling backwater flows into the heat pump room (3) through the water supply and backwater pipeline (5) to release heat and cool, and then flows into the water supply and backwater pipeline (5) again;
a water quality improvement component (9) of a cold and hot combined supply waste heat recovery system is arranged in the cooling tower (4), and the water quality improvement component (9) of the cold and hot combined supply waste heat recovery system is used for sterilizing and removing impurities from water in the cooling tower (4);
The water quality improvement component (9) of the cold and hot combined supply waste heat recovery system comprises:
the transparent mounting plate (900), the transparent mounting plate (900) is fixedly connected to the inner wall of the cooling tower (4), the transparent mounting plate (900) comprises a screw mounting part (9000) and an ultraviolet lamp mounting part (9001), and the screw mounting part (9000) and the ultraviolet lamp mounting part (9001) are connected through a connecting frame (9002);
a plurality of ultraviolet lamps (9003) which are uniformly arranged, wherein the ultraviolet lamps (9003) are fixedly connected in the ultraviolet lamp mounting part (9001);
two sets of bilateral symmetry's filter screen subassembly, filter screen subassembly is used for filtering impurity in cooling tower (4) interior aquatic, filter screen subassembly includes:
the installation rotating shaft (9004), wherein the installation rotating shaft (9004) is rotatably connected to the screw installation part (9000), a first driving piece is arranged on the installation rotating shaft (9004) and is used for driving the installation rotating shaft (9004) to rotate;
the filter screen accommodating block (9005), wherein the filter screen accommodating block (9005) is fixedly connected to one end, far away from the screw rod mounting part (9000), of the mounting rotating shaft (9004);
The filter comprises two symmetrically arranged filter screens (9006), wherein two symmetrically arranged first sliding blocks (9007) are fixedly connected to the filter screens (9006), the first sliding blocks (9007) are slidably connected into filter screen accommodating blocks (9005), first elastic pieces (9008) are fixedly connected to the filter screens (9006), and one ends, far away from the filter screens (9006), of the first elastic pieces (9008) are fixedly connected with the inner walls of the filter screen accommodating blocks (9005);
first electro-magnet (9009) and second electro-magnet (901), first electro-magnet (9009) fixed connection is in filter screen (9006) keep away from the one end of filter screen accommodating block (9005), second electro-magnet (901) fixed connection is in cooling tower (4) inner wall, first electro-magnet (9009) be used for with second electro-magnet (901) suction each other.
2. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 1, further comprising:
the system comprises a heat supply waste heat recovery pipeline (6) and a cold supply waste heat recovery pipeline (7), wherein the heat supply waste heat recovery pipeline (6) is used for conveying circulating water when a cold and hot combined supply waste heat recovery system supplies heat, and the cold supply waste heat recovery pipeline (7) is used for conveying the circulating water when the cold and hot combined supply waste heat recovery system supplies cold;
And a plurality of flow valves (8) are arranged on the hot waste heat supply and recovery pipeline (6), the cold waste heat supply and recovery pipeline (7) and the water supply and return pipeline (5).
3. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 2, which is characterized in that,
the exhaust port of the low-pressure cylinder (1) of the steam turbine is connected with the steam inlet end of the condenser (2), a circulating water outlet pipeline of the condenser (2) is communicated with one end of a heat supply waste heat recovery pipeline (6), the other end of the heat supply waste heat recovery pipeline (6) is communicated with the cooling tower (4), and the heat pump room (3) is connected to the heat supply waste heat recovery pipeline (6) and is positioned between the condenser (2) and the cooling tower (4);
one end of the cold supply waste heat recovery pipeline (7) is communicated with the heat pump room (3), and the other end of the cold supply waste heat recovery pipeline (7) is communicated with the cooling tower (4);
the heat pump room (3) is used for realizing heat exchange between circulating water in the heat supply and waste heat recovery pipeline (6) and/or the cold supply and waste heat recovery pipeline (7) and liquid in the heat supply and return pipeline (5).
4. A supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 3, wherein the liquid in the water supply and return pipeline (5) comprises external heat supply backwater and external cold supply backwater;
When the heat and cold combined supply waste heat recovery system supplies heat, the heat pump room (3) is used for realizing heat exchange between circulating water in the heat supply waste heat recovery pipeline (6) and heat supply backwater from inside to outside in the heat supply backwater pipeline (5);
when the cold and hot combined supply waste heat recovery system supplies cold, the heat pump room (3) is used for realizing heat exchange between circulating water in the cold supply waste heat recovery pipeline (7) and cold supply return water from inside to outside in the water supply return pipeline (5).
5. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 2, wherein the heat supply waste heat recovery pipeline (6) comprises:
the heat supply main pipeline (600), one end of the heat supply main pipeline (600) is communicated with a circulating water outlet pipeline of the condenser (2), a first heat supply branch (601) and a second heat supply branch (602) are communicated with the other end of the heat supply main pipeline (600), one end, far away from the heat supply main pipeline (600), of the first heat supply branch (601) is communicated with the cooling tower (4), one end, far away from the heat supply main pipeline (600), of the second heat supply branch (602) is communicated with the cooling tower (4) after penetrating through the heat pump room (3), and a branch connecting pipeline (603) is communicated with a part, located between the heat pump room (3) and the cooling tower (4), of the second heat supply branch (602);
The cold supply waste heat recovery pipeline (7) comprises:
cold water supply pipeline (700) and cold water supply outlet pipe way (701), cold water supply pipeline (700) one end and cooling tower (4) intercommunication, cold water supply pipeline (700) other end and heat pump room (3) intercommunication, cold water supply outlet pipe way (701) one end with second heat supply branch road (602) are located the part intercommunication between heat pump room (3) and cooling tower (4), cold water supply pipeline (700) other end and cooling tower (4) intercommunication.
6. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 5, wherein a plurality of electric compression heat pumps are arranged in the heat pump room (3), and circulating water is led out from the second heat supply branch (602) and/or the cold supply water inlet pipeline (700) and then uniformly distributed into the electric compression heat pumps.
7. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 1, further comprising: a cooling tower inner wall cleaning assembly (902), the cooling tower inner wall cleaning assembly (902) comprising:
a screw (9020), the screw (9020) being fixedly connected to the screw mounting portion (9000);
The nut (9021) is in threaded connection with the screw (9020), a second driving piece is arranged on the nut (9021) and used for driving the nut (9021) to rotate, and a first cavity (9022) is formed in the nut (9021);
-a cylinder expansion piece (9024), the cylinder expansion piece (9024) being fixedly connected within the first chamber (9022);
the connecting rod (9025), the connecting rod (9025) is fixedly connected to the working end of the cylinder expansion piece (9024);
the cleaning head connecting rod (9026), cleaning head connecting rod (9026) is sleeved at one end of connecting rod (9025) far away from cylinder expansion piece (9024), one end of connecting rod (9025) far away from cylinder expansion piece (9024) is fixedly connected with a second sliding block (9027), the second sliding block (9027) is slidingly connected with the inner wall of cleaning head connecting rod (9026), and a second elastic piece (9028) is fixedly connected between connecting rod (9025) and the inner wall of cleaning head connecting rod (9026);
cleaning head (9029), cleaning head (9029) hinged joint is in on cleaning head connecting rod (9026), hinged joint has connecting rod (903) of two symmetrical arrangement on cleaning head connecting rod (9026), connecting rod (903) are kept away from one end hinged joint of cleaning head connecting rod (9026) has third slider (9030), third slider (9030) sliding connection is in on cleaning head (9029), be equipped with the third driving piece on third slider (9030), the third driving piece is used for the drive third slider (9030) slides along cleaning head (9029).
8. The supercritical unit low-pressure cylinder zero-output unit cold and heat combined supply waste heat recovery system according to claim 7, further comprising: an auxiliary flush assembly, the auxiliary flush assembly comprising:
the device comprises a first abutting block (9031) and two symmetrically arranged second abutting blocks (9032), wherein the first abutting block (9031) is fixedly connected to a connecting rod (9025), the two second abutting blocks (9032) are respectively connected in two second chambers (9023) in an up-down sliding mode, the two second chambers (9023) are symmetrically arranged on two sides of a first chamber (9022), and one end of the second abutting block (9032) in the first chamber (9022) is used for being mutually abutted with the first abutting block (9031);
the water bag connecting block (9033), the water bag connecting block (9033) is fixedly connected to one end of the second chamber (9023) located in the second chamber (9023), a water bag (9034) is fixedly connected to the water bag connecting block (9033), and a third elastic piece (9035) is sleeved on the second abutting block (9032);
the water inlet short tube (9036) and the water outlet short tube (9037), the water inlet short tube (9036) and the water outlet short tube (9037) are fixedly connected to the nut (9021), one end of the water inlet short tube (9036) and one end of the water outlet short tube (9037) are located in the water bag (9034), the other end of the water inlet short tube is located outside the nut (9021), one-way valves (9038) are arranged in the water inlet short tube (9036) and the water outlet short tube (9037), a water outlet hose (9039) is sleeved at one end of the water outlet short tube (9037), one end of the water outlet hose (9039) away from the water outlet short tube (9037) is connected to the pressurized spray gun (904), and the pressurized spray gun (904) is connected to the side wall of the cleaning head (9029).
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|---|---|---|---|
| CN202211163178.9A CN115751422B (en) | 2022-09-23 | 2022-09-23 | Zero-output unit cold and heat combined supply waste heat recovery system of supercritical unit low-pressure cylinder |
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|---|---|---|---|
| CN202211163178.9A CN115751422B (en) | 2022-09-23 | 2022-09-23 | Zero-output unit cold and heat combined supply waste heat recovery system of supercritical unit low-pressure cylinder |
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| CN115751422B true CN115751422B (en) | 2023-06-20 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696643A (en) * | 2009-10-30 | 2010-04-21 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| KR20120055842A (en) * | 2010-11-24 | 2012-06-01 | 주식회사 귀뚜라미 범양냉방 | Heat pump type hot water supply system using waste heat |
| CN103075841A (en) * | 2013-01-11 | 2013-05-01 | 杭州能源投资管理有限公司 | Novel low-temperature combined cooling, heating and power (CCHP) system based on heat pump |
| CN206985919U (en) * | 2017-05-08 | 2018-02-09 | 广州蓝水环境设备科技有限公司 | A kind of cooling tower water processing equipment |
| CN211411313U (en) * | 2019-12-14 | 2020-09-04 | 无锡迈克森工业过滤器有限公司 | Dust remover convenient to change filter screen |
| CN212657909U (en) * | 2020-05-19 | 2021-03-05 | 中交煤气热力研究设计院有限公司 | Heat pump waste heat recovery unit system |
| CN113758068A (en) * | 2021-08-03 | 2021-12-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Air conditioning system based on circulating water of power plant and operation method thereof |
-
2022
- 2022-09-23 CN CN202211163178.9A patent/CN115751422B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696643A (en) * | 2009-10-30 | 2010-04-21 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| KR20120055842A (en) * | 2010-11-24 | 2012-06-01 | 주식회사 귀뚜라미 범양냉방 | Heat pump type hot water supply system using waste heat |
| CN103075841A (en) * | 2013-01-11 | 2013-05-01 | 杭州能源投资管理有限公司 | Novel low-temperature combined cooling, heating and power (CCHP) system based on heat pump |
| CN206985919U (en) * | 2017-05-08 | 2018-02-09 | 广州蓝水环境设备科技有限公司 | A kind of cooling tower water processing equipment |
| CN211411313U (en) * | 2019-12-14 | 2020-09-04 | 无锡迈克森工业过滤器有限公司 | Dust remover convenient to change filter screen |
| CN212657909U (en) * | 2020-05-19 | 2021-03-05 | 中交煤气热力研究设计院有限公司 | Heat pump waste heat recovery unit system |
| CN113758068A (en) * | 2021-08-03 | 2021-12-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Air conditioning system based on circulating water of power plant and operation method thereof |
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| CN115751422A (en) | 2023-03-07 |
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