Catalyst regeneration energy recovery heat pump system

Abstract

The invention provides a catalyst regeneration energy recovery heat pump system, and belongs to the technical field of heat pumps. An air channel outside is communicated with the charring-regeneration system through a heat source regenerator, the charring-regeneration system is further provided with a smoke channel which is communicated with the outside through a heat exchanger and the heat source regenerator, and a low-temperature heat exchanger is communicated with a compressor through a circulating working medium channel. The second expansion machine communicates with the compressor through a middle port after communicating with the heat regenerator through a circulating working medium channel, the compressor communicates with the expansion machine through the circulating working medium channel via the heat exchanger, and the expansion machine communicates with the heat supplier through the circulating working medium channel and then is divided into two paths, namely the first path communicates with the second expansion machine and the second path communicates with the heat regenerator; the heat regenerator further communicates with the low-temperature heat exchanger through a circulating working medium channel and a third expansion machine. The heat supply device communicates with the outside through a heated medium channel, the low-temperature heat exchanger communicates with the outside through a low-temperature heat medium channel, and the catalyst regeneration energy recovery heat pump system is formed.

Description

Technical fields:

[0001] This invention belongs to the field of thermodynamics and heat pump technology. Background technology:

[0002] Catalytic cracking is the process of producing light petroleum products such as liquefied petroleum gas, gasoline, and diesel from heavy petroleum hydrocarbons under the action of a catalyst. When feedstock undergoes catalytic cracking on a catalyst, on the one hand, it generates products such as gases, gasoline, and diesel through cracking and other reactions; on the other hand, condensation reactions occur simultaneously to generate coke deposited on the catalyst surface—which reduces the activity of the catalyst.

[0003] Catalyst regeneration involves burning away the coke deposited on the catalyst with air to restore its activity. This process releases a large amount of high-temperature heat energy, which should be fully utilized. Currently, the main method for recovering energy from regenerated flue gas is to install waste heat boilers to generate steam or further generate power. However, careful analysis reveals the following problems:

[0004] (1) There is a large irreversible loss of temperature difference in the coking process; (2) The temperature and quantity of flue gas are not considered at the same time in the utilization stage; (3) The flue gas energy utilization technology needs to be improved. There is a lot of room for improvement in both power utilization and heating utilization; (4) The flue gas energy recovery is not combined with the overall energy use of the oil refining process to enhance its application value.

[0005] Based on the fundamental principles of simple, proactive, safe, and efficient energy utilization, this invention presents a catalyst regeneration energy recovery heat pump system with a reasonable process and simple structure, which realizes efficient / high-value recovery and utilization of catalyst regeneration energy. Summary of the Invention:

[0006] The main objective of this invention is to provide a catalyst regeneration energy recovery heat pump system. The specific contents of the invention are described in detail below:

[0007] 1. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke combustion-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, and a low-temperature heat exchanger. Externally, an air channel connects to the coke combustion-regeneration system via the heat source regenerator. The coke combustion-regeneration system also has a flue gas channel connecting to the outside via the heat exchanger and the heat source regenerator. The low-temperature heat exchanger has a circulating working fluid channel connecting to the compressor. The second expander has a circulating working fluid channel connecting to the regenerator and then to the compressor via an intermediate port. The compressor also has a circulating working fluid channel connecting to the expander via the heat exchanger. The expander also has a circulating working fluid channel connecting to the heater, which then splits into two paths—the first path connecting to the second expander and the second path connecting to the regenerator. The regenerator also has a circulating working fluid channel connecting to the low-temperature heat exchanger via the third expander. The heater also has a channel for the heated medium connecting to the outside, and the low-temperature heat exchanger also has a channel for the low-temperature heating medium connecting to the outside. The expanders, second expander, and third expander are connected to the compressor and transmit power, forming the catalyst regeneration energy recovery heat pump system.

[0008] 2. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber added to the catalyst regeneration energy recovery heat pump system described in item 1. An external fuel channel is connected to the auxiliary combustion chamber. The coke-regeneration system is adjusted so that the flue gas channel is connected to the heat exchanger, and the coke-regeneration system is connected to the auxiliary combustion chamber. The auxiliary combustion chamber is then connected to the heat exchanger via a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

[0009] 3. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke combustion-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, a low-temperature heat exchanger, an air compressor, and a flue gas fan. Externally, it has an air channel connecting to the coke combustion-regeneration system via the air compressor and the heat source regenerator. The coke combustion-regeneration system also has a flue gas channel connecting to the outside via the flue gas fan, heat exchanger, and heat source regenerator. The low-temperature heat exchanger has a circulating working fluid channel connecting to the compressor. The second expander has a circulating working fluid channel connecting to the regenerator and then to the compressor via an intermediate port. The compressor is connected to the expander via a heat exchanger, and the expander is connected to the heater via a circulating working fluid channel. The expander is connected to the heater via a circulating working fluid channel and then splits into two paths: the first path is connected to the second expander and the second path is connected to the regenerator. The regenerator is connected to the low-temperature heat exchanger via a circulating working fluid channel through a third expander. The heater is also connected to the outside via a heated medium channel, and the low-temperature heat exchanger is connected to the outside via a low-temperature heat medium channel. The expander, the second expander, and the third expander are connected to the compressor and transmit power. The flue gas fan is connected to the air compressor and transmits power, forming a catalyst regeneration energy recovery heat pump system.

[0010] 4. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 2, with the addition of an auxiliary combustion chamber. An external fuel channel connects the auxiliary combustion chamber to the auxiliary combustion chamber. The coke-regeneration system is changed from having a flue gas channel connected to the flue gas fan to having a flue gas channel connected to the auxiliary combustion chamber. The auxiliary combustion chamber is then connected to the flue gas fan via a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

[0011] 5. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-4, with the addition of a second regenerator. The regenerator is modified so that it has a circulating working fluid channel connected to a low-temperature heat exchanger via a third expander, and the regenerator has a circulating working fluid channel connected to the low-temperature heat exchanger via the second regenerator and the third expander. The low-temperature heat exchanger is modified so that it has a circulating working fluid channel connected to a compressor via the second regenerator, thus forming the catalyst regeneration energy recovery heat pump system.

[0012] 6. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-5, with the addition of a high-temperature regenerator. The compressor's circulating working fluid channel is adjusted to be connected to the heat exchanger via the high-temperature regenerator, and the expander's circulating working fluid channel is adjusted to be connected to the heater via the high-temperature regenerator, thus forming the catalyst regeneration energy recovery heat pump system.

[0013] 7. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-5, with the addition of a high-temperature regenerator. The compressor's circulating working fluid channel is adjusted to be connected to the heat exchanger via the high-temperature regenerator, and the expander's circulating working fluid channel is adjusted to be connected to the heater via the high-temperature regenerator, and then the expander has a circulating working fluid channel connected to the heater, thus forming the catalyst regeneration energy recovery heat pump system.

[0014] 8. A catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-7, with the addition of a heating furnace and a new heat source regenerator. An external fuel channel connects the heating furnace, and an external air channel connects the heating furnace via the new heat source regenerator. The heating furnace also has a gas channel connecting it to the outside via the new heat source regenerator. The heat exchanger is modified from having a circulating working fluid channel connecting it to the expander to have a circulating working fluid channel connecting it to the heating furnace and the expander, thus forming a catalyst regeneration energy recovery heat pump system.

[0015] 9. The catalyst regeneration energy recovery heat pump system is formed by adding an expansion speed-up unit to replace the expansion unit in any of the catalyst regeneration energy recovery heat pump systems described in items 1-8, adding a dual-energy compressor to replace the compressor, adding a second expansion speed-up unit to replace the second expansion unit, and adding a third expansion speed-up unit to replace the third expansion unit. Attached image description:

[0016] Figure 1 This is a principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0017] Figure 2 This is a second principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0018] Figure 3 This is a third principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0019] Figure 4 This is a fourth principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0020] Figure 5 This is the fifth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0021] Figure 6 This is the sixth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0022] Figure 7 This is the seventh principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0023] Figure 8 This is the eighth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0024] Figure 9 This is the ninth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0025] In the figure, 1-heat source regenerator, 2-coke-regeneration system, 3-expander, 4-compressor, 5-second expander, 6-third expander, 7-regenerator, 8-heat exchanger, 9-heater, 10-low temperature heat exchanger, 11-auxiliary combustion chamber, 12-air compressor, 13-smoke machine, 14-second regenerator, 15-high temperature regenerator, 16-heat furnace, 17-new heat source regenerator, 18-expander speed-up unit, 19-dual-energy compressor, 20-second expander speed-up unit, 22-third expander speed-up unit; it should also be noted that (1) the low temperature heat exchanger is an evaporator during transcritical cycles; (2) the separation and purification components required for the coke-regeneration system are considered as part of the coke-regeneration system and are not listed separately. Detailed implementation method:

[0026] First, it should be noted that the structure and process are not repeated unless necessary, and obvious processes are not described. The invention will now be described in detail with reference to the accompanying drawings and examples.

[0027] Figure 1 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0028] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, and a low-temperature heat exchanger; an external air passage connects to the coke-regeneration system 2 via the heat source regenerator 1, and the coke-regeneration system 2 also has a flue gas passage connecting to the outside via the heat exchanger 8 and the heat source regenerator 1; the low-temperature heat exchanger 10 has a circulating working fluid passage connecting to the compressor 4; the second expander 5 has a circulating working fluid passage connecting to the regenerator 7 and then to the compressor 4 via an intermediate port. The compressor 4 is connected to the expander 3 via the heat exchanger 8. The expander 3 is also connected to the heater 9 via the circulating working fluid channel, and then splits into two paths: the first path is connected to the second expander 5 and the second path is connected to the regenerator 7. The regenerator 7 is also connected to the low-temperature heat exchanger 10 via the third expander 6 via the circulating working fluid channel. The heater 9 is also connected to the outside via the heated medium channel, and the low-temperature heat exchanger 10 is also connected to the outside via the low-temperature heat medium channel. The expander 3, the second expander 5, and the third expander 6 are connected to the compressor 4 and transmit power.

[0029] (2) In terms of process, external air flows through the heat source regenerator 1 to absorb heat and increase its temperature, and then enters the coke-regeneration system 2 to participate in combustion; coke forms on the surface of the air and catalyst, and a series of processes including combustion are carried out to regenerate the catalyst and generate flue gas. The flue gas generated by the coke-regeneration system 2 and after separation and purification is provided to the heat exchanger 8. The flue gas flows through the heat exchanger 8 and the heat source regenerator 1 to gradually release heat and decrease its temperature, and then is discharged to the outside; the circulating working fluid discharged by the compressor 4 flows through the heat exchanger 8 to absorb heat and increase its temperature, flows through the expander 3 to decrease its pressure and do work, flows through the heater 9 to release heat and decrease its temperature, and then splits into two paths - the first path flows through the second expander 5 to decrease its pressure and do work, flows through the regenerator 7 to absorb heat and increase its temperature, and enters the compressor 4 through the intermediate air inlet port to increase its pressure and increase its temperature, and the second path enters the regenerator 7 to release heat and decrease its temperature; the regenerator The circulating working fluid emitted from 7 flows through the third expander 6 to reduce pressure and perform work, and after absorbing heat through the low-temperature heat exchanger 10, it enters the compressor 4 to increase pressure and temperature; the flue gas emitted from the coke-regeneration system 2 provides the driving heat load, and the air and flue gas carry away the low-temperature emission heat load through the heat source flow. The heated medium obtains a medium-temperature heat load through the heater 9, and the low-temperature heat medium provides a low-temperature heat load through the low-temperature heat exchanger 10; the mechanical energy output from expander 3, second expander 5 and third expander 6 provides power to compressor 4, or the mechanical energy output from expander 3, second expander 5 and third expander 6 provides power to compressor 4 and external sources, or expander 3, second expander 5, third expander 6 and external sources jointly provide power to compressor 4, forming a catalyst regeneration energy recovery heat pump system.

[0030] Figure 2 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0031] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 11 is added, and an external fuel channel is connected to the auxiliary combustion chamber 11. The coke-regeneration system 2, which was previously connected to the heat exchanger 8 via a flue gas channel, is now connected to the auxiliary combustion chamber 11 via a flue gas channel. The auxiliary combustion chamber 11 is then connected to the heat exchanger 8 via a flue gas channel.

[0032] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: external fuel enters the auxiliary combustion chamber 11, and the flue gas emitted by the coke-regeneration system 2 enters the auxiliary combustion chamber 11. The fuel and flue gas are burned in the auxiliary combustion chamber 11 to form flue gas at a higher temperature, which is then supplied to the heat exchanger 8 to form the catalyst regeneration energy recovery heat pump system.

[0033] Figure 3 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0034] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, a low-temperature heat exchanger, an air compressor, and a flue gas fan. Externally, there is an air channel that connects to the coke-regeneration system 2 via the air compressor 12 and the heat source regenerator 1. The coke-regeneration system 2 also has a flue gas channel that connects to the outside via the flue gas fan 13, the heat exchanger 8, and the heat source regenerator 1. The low-temperature heat exchanger 10 has a circulating working fluid channel that connects to the compressor 4. The second expander 5 has a circulating working fluid channel that connects to the regenerator 7 and then to the compressor via an intermediate port. The compressor 4 is connected to the heat exchanger 8 and the expander 3. The expander 3 is also connected to the heater 9 via the heat exchanger 8 and then splits into two paths: the first path is connected to the second expander 5 and the second path is connected to the regenerator 7. The regenerator 7 is also connected to the low-temperature heat exchanger 10 via the third expander 6 and the heat exchanger 9. The heater 9 is also connected to the outside via the heated medium path. The low-temperature heat exchanger 10 is also connected to the outside via the low-temperature heat medium path. The expander 3, the second expander 5 and the third expander 6 are connected to the compressor 4 and transmit power. The smoke machine 13 is connected to the air compressor 12 and transmits power.

[0035] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: external air flows through the air compressor 12 to increase its pressure and temperature, flows through the heat source regenerator 1 to absorb heat and increase its temperature, and then supplies it to the coke-regeneration system 2; the flue gas emitted by the coke-regeneration system 2 flows through the flue gas fan 13 to decrease its pressure and do work, and then supplies it to the heat exchanger 8; the mechanical energy output by the expander 3, the second expander 5, the third expander 6 and the flue gas fan 13 supplies power to the compressor 4 and the air compressor 12, or the mechanical energy output by the expander 3, the second expander 5, the third expander 6 and the flue gas fan 13 supplies power to the compressor 4, the air compressor 12 and the outside, or the expander 3, the second expander 5, the third expander 6, the flue gas fan 13 and the outside jointly provide power to the compressor 4 and the air compressor 12, forming the catalyst regeneration energy recovery heat pump system.

[0036] Figure 4 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0037] (1) Structurally, in Figure 3 In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 11 is added, and an external fuel channel is connected to the auxiliary combustion chamber 11. The coke-regeneration system 2, which was previously connected to the flue gas machine 13, is now connected to the auxiliary combustion chamber 11, and the auxiliary combustion chamber 11 is further connected to the flue gas machine 13 via a flue gas channel.

[0038] (2) In terms of process, with Figure 3Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: external fuel enters the auxiliary combustion chamber 11, and the flue gas emitted by the coke burning-regeneration system 2 enters the auxiliary combustion chamber 11. The fuel and flue gas are burned in the auxiliary combustion chamber 11 to form flue gas at a higher temperature, which is then supplied to the flue gas motor 13, thus forming the catalyst regeneration energy recovery heat pump system.

[0039] Figure 5 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0040] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator is added. The regenerator 7 is connected to the low-temperature heat exchanger 10 via the third expander 6 through a circulating working fluid channel. The regenerator 7 is then connected to the low-temperature heat exchanger 10 via the second regenerator 14 and the third expander 6. The low-temperature heat exchanger 10 is connected to the compressor 4 via a circulating working fluid channel. The low-temperature heat exchanger 10 is then connected to the compressor 4 via the second regenerator 14 through a circulating working fluid channel.

[0041] (2) In terms of process, with Figure 1 The difference between the catalyst regeneration energy recovery heat pump system process shown is that: the second circulating working fluid discharged from the heater 9 flows through the regenerator 7 and the second regenerator 14 to gradually release heat, and then enters the third expander 6 to reduce pressure and do work; the circulating working fluid discharged from the low-temperature heat exchanger 10 flows through the second regenerator 14 to absorb heat and increase temperature, and then enters the compressor 4 to increase pressure and temperature, forming the catalyst regeneration energy recovery heat pump system.

[0042] Figure 6 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0043] (1) Structurally, in Figure 5 In the catalyst regeneration energy recovery heat pump system shown, a high-temperature regenerator 15 is added, and the compressor 4 is adjusted to have a circulating working fluid channel connected to the heat exchanger 8 via the high-temperature regenerator 15. The expander 3 is also adjusted to have a circulating working fluid channel connected to the heater 9 via the high-temperature regenerator 15.

[0044] (2) In terms of process, with Figure 5 Compared with the catalyst regeneration energy recovery heat pump system process shown, the difference is that: the circulating working fluid discharged from the compressor 4 flows through the high-temperature regenerator 15 to absorb heat and increase its temperature, and then provides it to the heat exchanger 8; the circulating working fluid discharged from the expander 3 flows through the high-temperature regenerator 15 to release heat and decrease its temperature, and then provides it to the heater 9, thus forming the catalyst regeneration energy recovery heat pump system.

[0045] Figure 7The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0046] (1) Structurally, in Figure 5 In the catalyst regeneration energy recovery heat pump system shown, a high-temperature regenerator 15 is added. The compressor 4 is adjusted to have a circulating working fluid channel connected to the heat exchanger 8, so that the compressor 4 has a circulating working fluid channel connected to the heat exchanger 8 via the high-temperature regenerator 15. The expander 3 is adjusted to have a circulating working fluid channel connected to the heater 9, so that the expander 3 has a circulating working fluid channel connected to itself via the high-temperature regenerator 15, and then the expander 3 has a circulating working fluid channel connected to the heater 9.

[0047] (2) In terms of process, with Figure 5 The difference between the catalyst regeneration energy recovery heat pump system shown is that the circulating working fluid discharged from the compressor 4 flows through the high-temperature regenerator 15 to absorb heat and increase its temperature, and then provides it to the heat exchanger 8; the circulating working fluid discharged from the heat exchanger 8 enters the expander 3 to reduce pressure and do work, and after reaching a certain level, it flows through the high-temperature regenerator 15 to release heat and reduce its temperature, and then enters the expander 3 to continue to reduce pressure and do work, and then provides it to the heater 9, forming the catalyst regeneration energy recovery heat pump system.

[0048] Figure 8 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0049] (1) Structurally, in Figure 5 In the catalyst regeneration energy recovery heat pump system shown, a heater 16 and a new heat source regenerator 17 are added. There is an external fuel channel connected to the heater 16, and an external air channel connected to the heater 16 via the new heat source regenerator 17. The heater 16 also has a gas channel connected to the outside via the new heat source regenerator 17. The heat exchanger 8 is adjusted so that it has a circulating working fluid channel connected to the expander 3, and the heat exchanger 8 has a circulating working fluid channel connected to the heater 16 and the expander 3.

[0050] (2) In terms of process, with Figure 5 Compared to the catalyst regeneration energy recovery heat pump system process shown, the difference lies in the following: external fuel enters the heating furnace 16, and external air flows through the new heat source regenerator 17 to absorb heat and increase its temperature before entering the heating furnace 16. The fuel and air mix and burn in the heating furnace 16 to generate high-temperature gas. The high-temperature gas releases heat to the circulating working fluid flowing through the heating furnace 16, and then flows through the new heat source regenerator 17 to release heat, cool down, and be discharged to the outside. The circulating working fluid discharged by the compressor 4 flows through the heat exchanger 8 and the heating furnace 16 to gradually absorb heat and increase its temperature, and then provides it to the expander 3. The added fuel provides high-temperature driving heat load through the heating furnace 16, and the air and gas carry away the discharged heat load by entering and exiting the heating furnace 16, forming the catalyst regeneration energy recovery heat pump system.

[0051] Figure 9The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0052] (1) Structurally, in Figure 5 In the catalyst regeneration energy recovery heat pump system shown, an expander accelerator 18 is added and replaces expander 3, a dual-energy compressor 19 is added and replaces compressor 4, a second expander accelerator 18 is added and replaces second expander 5, and a third expander accelerator 21 is added and replaces third expander 6.

[0053] (2) In terms of process, with Figure 5 Compared to the catalyst regeneration energy recovery heat pump system flow shown, the difference lies in the following: the circulating working fluid discharged from the dual-energy compressor 19 flows through the heat exchanger 8 to absorb heat and increase its temperature, flows through the expander 18 to reduce pressure, perform work, and increase its speed, flows through the heater 9 to release heat and decrease its temperature, and then splits into two paths—the first path flows through the second expander 20 to reduce pressure, perform work, and increase its speed, flows through the regenerator 7 to absorb heat and increase its temperature, and enters the dual-energy compressor 19 through the intermediate air inlet port to increase pressure, increase temperature, and decrease its speed, while the second path supplies the regenerator 7; the circulating working fluid discharged from the regenerator 7 flows through the second regenerator 14 to release heat and decrease its temperature, flows through the third expander 21 to reduce pressure, perform work, and increase its speed. The fluid gradually absorbs heat and heats up through the low-temperature heat exchanger 10 and the second regenerator 14, and then enters the dual-energy compressor 19 for pressurization, heating and deceleration. The mechanical energy output by the expander 18, the second expander 20 and the third expander 21 provides power to the dual-energy compressor 19, or the mechanical energy output by the expander 18, the second expander 20 and the third expander 21 provides power to the dual-energy compressor 19 and the outside, or the expander 18, the second expander 20 and the third expander 21 and the outside jointly provide power to the dual-energy compressor 19, forming a catalyst regeneration energy recovery heat pump system.

[0054] The effects achievable by this invention—the catalyst regeneration energy recovery heat pump system proposed in this invention has the following effects and advantages:

[0055] (1) Technical measures were proposed to improve the thermal energy grade of the catalyst regeneration process and to utilize it for refrigeration / heating.

[0056] (2) Reduce irreversible temperature loss during catalyst regeneration and increase the temperature of the initial driving heat source.

[0057] (3) The variable temperature obtains the driving heat load, thereby improving the performance index of the gas heat pump system by increasing the heat absorption temperature.

[0058] (4) Fuel (e.g., refinery gas or purchased fuel) provides high-temperature driving heat load through the combustion chamber / heater, which greatly enhances the cooling / heating value of regenerated flue gas energy.

[0059] (5) Take simple technical measures to achieve efficient / high-value utilization of flue gas energy, reduce costs and improve economic efficiency.

[0060] (6) The heat recovery measures increase the average temperature of the heat pump system during the heat absorption process, resulting in less systemic temperature difference loss and improved system performance index.

[0061] (7) Provides multiple technical solutions, which are conducive to the catalyst regeneration energy recovery heat pump system to better enhance the energy application value.

Claims

1. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, and a low-temperature heat exchanger; an external air passage connects to the coke-regeneration system (2) via the heat source regenerator (1), and the coke-regeneration system (2) also has a flue gas passage connecting to the outside via the heat exchanger (8) and the heat source regenerator (1); the low-temperature heat exchanger (10) has a circulating working fluid passage connecting to the compressor (4); the second expander (5) has a circulating working fluid passage connecting to the regenerator (7) and then connecting to the compressor (4) through an intermediate port; the compressor (4) also... There is a circulating working fluid channel that connects to the expander (3) via the heat exchanger (8). The expander (3) also has a circulating working fluid channel that connects to the heater (9) and then splits into two paths: the first path connects to the second expander (5) and the second path connects to the regenerator (7). The regenerator (7) also has a circulating working fluid channel that connects to the low-temperature heat exchanger (10) via the third expander (6). The heater (9) also has a heated medium channel that connects to the outside. The low-temperature heat exchanger (10) also has a low-temperature heat medium channel that connects to the outside. The expander (3), the second expander (5) and the third expander (6) are connected to the compressor (4) and transmit power, forming a catalyst regeneration energy recovery heat pump system.

2. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber (11) added to the catalyst regeneration energy recovery heat pump system described in claim 1. The auxiliary combustion chamber (11) is connected to the external fuel channel. The coke-regeneration system (2) is adjusted so that the coke-regeneration system (2) is connected to the heat exchanger (8) through a flue gas channel. The auxiliary combustion chamber (11) is then connected to the heat exchanger (8) through a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

3. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke-regeneration system, an expander, a compressor, a second expander, a third expander, a regenerator, a heat exchanger, a heater, a low-temperature heat exchanger, an air compressor, and a flue gas fan. Externally, there is an air channel connecting the coke-regeneration system (2) via the air compressor (12) and the heat source regenerator (1). The coke-regeneration system (2) also has a flue gas channel connecting it to the outside via the flue gas fan (13), the heat exchanger (8), and the heat source regenerator (1). The low-temperature heat exchanger (10) has a circulating working fluid channel connecting it to the compressor (4). The second expander (5) has a circulating working fluid channel connecting it to the regenerator (7) and then to the compressor (4) via an intermediate port. The compressor (4)... There is also a circulating working fluid channel that is connected to the expander (3) via the heat exchanger (8). The expander (3) also has a circulating working fluid channel that is connected to the heater (9) and then splits into two paths - the first path is connected to the second expander (5) and the second path is connected to the regenerator (7). The regenerator (7) also has a circulating working fluid channel that is connected to the low-temperature heat exchanger (10) via the third expander (6). The heater (9) also has a heated medium channel that is connected to the outside. The low-temperature heat exchanger (10) also has a low-temperature heat medium channel that is connected to the outside. The expander (3), the second expander (5) and the third expander (6) are connected to the compressor (4) and transmit power. The smoke machine (13) is connected to the air compressor (12) and transmits power, forming a catalyst regeneration energy recovery heat pump system.

4. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber (11) added to the catalyst regeneration energy recovery heat pump system described in claim 2. The auxiliary combustion chamber (11) is connected to the external fuel channel. The coke-regeneration system (2) is changed from having a flue gas channel connected to the smoke machine (13) to having a flue gas channel connected to the auxiliary combustion chamber (11). The auxiliary combustion chamber (11) is then connected to the smoke machine (13) via a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

5. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-4, wherein a second regenerator is added, the regenerator (7) is connected to the low-temperature heat exchanger (10) via a circulating working fluid channel through a third expander (6), and the regenerator (7) is connected to the low-temperature heat exchanger (10) via a circulating working fluid channel through a second regenerator (14) and a third expander (6), and the low-temperature heat exchanger (10) is connected to the compressor (4) via a circulating working fluid channel through a second regenerator (14), thereby forming a catalyst regeneration energy recovery heat pump system.

6. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-5, wherein a high-temperature regenerator (15) is added, the compressor (4) is connected to the heat exchanger (8) via a circulating working fluid channel, and the compressor (4) is connected to the heat exchanger (8) via the high-temperature regenerator (15), and the expander (3) is connected to the heater (9) via a circulating working fluid channel, and the expander (3) is connected to the heater (9) via the high-temperature regenerator (15), thus forming a catalyst regeneration energy recovery heat pump system.

7. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-5, wherein a high-temperature regenerator (15) is added, the compressor (4) is connected to the heat exchanger (8) via a circulating working fluid channel, and the compressor (4) is connected to the heat exchanger (8) via the high-temperature regenerator (15), and the expander (3) is connected to the heater (9) via a circulating working fluid channel, and the expander (3) is connected to itself via the high-temperature regenerator (15), and then the expander (3) is connected to the heater (9) via a circulating working fluid channel, thus forming a catalyst regeneration energy recovery heat pump system.

8. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-7, wherein a heating furnace (16) and a new heat source regenerator (17) are added. The heating furnace (16) is connected to the outside by a fuel channel and an air channel is connected to the heating furnace (16) via the new heat source regenerator (17). The heating furnace (16) is also connected to the outside by a gas channel via the new heat source regenerator (17). The heat exchanger (8) is adjusted to have a circulating working fluid channel connected to the expander (3) so that the heat exchanger (8) has a circulating working fluid channel connected to the expander (3) via the heating furnace (16), thereby forming a catalyst regeneration energy recovery heat pump system.

9. A catalyst regeneration energy recovery heat pump system is formed by adding an expansion speed increaser (18) to replace the expander (3), adding a dual-energy compressor (19) to replace the compressor (4), adding a second expansion speed increaser (20) to replace the second expander (5), and adding a third expansion speed increaser (21) to replace the third expander (6) in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-8.

Images