Recycling device for waste heat of circulating cooling water of low-concentration gas generator set

Abstract

The utility model discloses a low-concentration gas generator set circulating cooling water waste heat recycling device which comprises a gas generator set, a heat exchanger is arranged on the right side of the gas generator set, and an outer circulating cooling water inlet of the gas generator set is communicated with a water outlet in the left side of the heat exchanger. An external circulating cooling water outlet of the gas generator set is communicated with a left water inlet of the heat exchanger; a water inlet in the right side of the heat exchanger is communicated with a water outlet in the left side of the circulating water tank; the heat exchanger right water outlet is communicated with the circulating water tank left water inlet; a water outlet in the right side of the circulating water tank is communicated with a water inlet in the left side of the energy storage water tank; a water inlet in the upper side of the circulating water tank is communicated with a water outlet in the bottom side of the water replenishing tank; through cold and heat exchange between the I-shaped water pipe and the heat conduction pipe, water in the heat conduction pipe circularly flows to take away heat on the I-shaped water pipe, and collection and utilization of waste heat of external circulating cooling water of the gas generator set are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-concentration gas generator sets, in particular to a device for recovering and utilizing waste heat of circulating cooling water of low-concentration gas generator sets. Background Art

[0002] For low-concentration gas generators, only 30%-35% of the energy generated by gas is converted into electrical energy, about 30%-35% is discharged with high-temperature exhaust gas, about 20%-25% is taken away by the engine's own cooling system, and about 10% is lost due to heat dissipation and resistance. The waste heat utilization of gas generator sets is to recover the heat discharged by the high-temperature exhaust gas of the unit and the heat taken away by the cooling system through special equipment, and then transport it to the workshop or residential area that needs heat source.

[0003] The cooling system of the existing low-concentration gas generator set includes an internal circulation cooling water system and an external circulation cooling water system. The internal circulation cooling water of the unit is cooled and lowered by the external circulation cooling water through a heat exchanger, thereby maintaining the cooling effect of the internal circulation water. The existing external circulation cooling system is cooled by a cooling tower or a horizontal water tank fan, and the fan drives the blades to use air to achieve the effect of cooling the external circulation water, but the waste heat of the cooling water is not recycled, resulting in a waste of resources and inability to fully utilize resources. For this reason, the present application proposes a method of recycling the waste heat of the cooling water when cooling and lowering the temperature of the internal circulation cooling water of the unit. Utility Model Content

[0004] The embodiment of the present application provides a device for recovering and utilizing the waste heat of circulating cooling water of a low-concentration gas generator set. By performing heat exchange between an I-shaped water pipe and a heat transfer pipe, the water in the heat transfer pipe circulates to take away the heat from the I-shaped water pipe. As the water temperature of the circulating water tank gradually rises, the water in the circulating water tank is discharged into an energy storage tank for storage and standby, thereby realizing the collection and utilization of the waste heat of the external circulating cooling water of the gas generator set.

[0005] The embodiment of the present application provides a device for recycling waste heat of circulating cooling water of a low-concentration gas generator set, comprising a gas generator set,

[0006] The left side of the gas generator set is connected to a gas delivery pipeline, and a control valve is installed on the gas delivery pipeline;

[0007] A heat exchanger is provided on the right side of the gas generator assembly, and the water inlet of the external circulation cooling water of the gas generator set is connected with the water outlet on the left side of the heat exchanger through a water inlet pipe; the water outlet of the external circulation cooling water of the gas generator set is connected with the water inlet on the left side of the heat exchanger through a water outlet pipe;

[0008] A circulating water tank is provided on the right side of the heat exchanger, and the water inlet on the right side of the heat exchanger is connected to the water outlet on the left side of the circulating water tank through a second water inlet pipe; the water outlet on the right side of the heat exchanger is connected to the water inlet on the left side of the circulating water tank through a second water outlet pipe;

[0009] An energy storage water tank is provided on the right side of the circulating water tank, and the water outlet on the right side of the circulating water tank is connected to the water inlet on the left side of the energy storage water tank through a water outlet pipe 3; the water outlet on the right side of the energy storage water tank is connected to a water outlet pipe 4;

[0010] A water replenishment tank is provided on the upper side of the circulating water tank, and the water inlet on the upper side of the circulating water tank is connected to the water outlet on the bottom side of the water replenishment tank through a water inlet pipe three, and the water inlet on the upper side of the water replenishment tank is connected to a water inlet pipe four.

[0011] Furthermore, the water inlet pipe 1, water inlet pipe 2, water inlet pipe 3, water outlet pipe 1, water outlet pipe 2, and water outlet pipe 3 are all equipped with solenoid valves and water pumps; the solenoid valves are one-way valves; the solenoid valves and water pumps are electrically connected to a controller.

[0012] Furthermore, the water inlet pipe four and the water outlet pipe four are both equipped with one-way control valves.

[0013] Furthermore, an I-shaped water pipe is provided in the heat exchanger, the upper side of which is fixedly connected to the upper inner wall of the heat exchanger through filling block 1, and the bottom side is fixedly connected to the bottom inner wall of the heat exchanger through filling block 2; the upper side of the I-shaped water pipe is connected to water inlet pipe 1, and the lower side of the I-shaped water pipe is connected to water outlet pipe 1.

[0014] Furthermore, a heat conduction pipe is provided on the outside of the I-shaped water pipe, and grooves are provided on the upper and lower sides of the heat conduction pipe so that the upper and lower ends of the I-shaped water pipe can be stuck in the grooves; an inner pipe is fixedly provided inside the heat conduction pipe, and the inner pipe is fixedly sleeved on the outside of the I-shaped water pipe.

[0015] Furthermore, the bottom side of the heat conducting pipe is connected to the second water inlet pipe, and the upper side of the heat conducting pipe is connected to the second water outlet pipe.

[0016] Furthermore, the external circulating cooling water of the gas generator set circulates from top to bottom through the I-shaped water pipe, and the water in the circulating water tank circulates from bottom to top through the heat conduction pipe.

[0017] Furthermore, a temperature sensor is fixedly connected to the upper inner wall of the circulating water tank, and the temperature sensor is electrically connected to the controller.

[0018] Furthermore, a liquid level sensor is fixedly connected to the inner wall of the bottom side of the circulating water tank, and the liquid level sensor is electrically connected to the controller.

[0019] Furthermore, the energy storage water tank is an insulated water tank.

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: when the gas generator set is operating normally, the controller opens the solenoid valves and water pumps on the water inlet pipe 1, the water outlet pipe 1, the water inlet pipe 2, and the water outlet pipe 2, and the external circulating cooling water of the gas generator set enters the heat exchanger through the water inlet pipe 1 and circulates from top to bottom through the I-shaped water pipe. The water in the circulating water tank enters the heat exchanger through the water inlet pipe 2 and circulates from bottom to top through the heat conducting pipe. As the water in the heat conducting pipe circulates, heat exchange is performed according to heat transfer, and the heat on the I-shaped water pipe is taken away. As the water in the circulating water tank flows, the heat of the external circulating cooling water of the gas generator set is taken away, so that the water temperature of the circulating water tank gradually rises. When its temperature reaches the set value of the temperature sensor, the controller opens the solenoid valve and the water pump on the water outlet pipe 3 to discharge the water in the circulating water tank into the energy storage tank for storage and standby. Through the heat exchange between the I-shaped water pipe and the heat transfer pipe, the water circulates in the heat transfer pipe to take away the heat from the I-shaped water pipe. As the water temperature in the circulating water tank gradually rises, the water in the circulating water tank is discharged into the energy storage tank for storage and standby, thereby realizing the collection and utilization of the waste heat of the external circulating cooling water of the gas generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the connection structure of the gas generator set in this application;

[0022] Figure 2 For this application, according to the internal structure diagram of the heat exchanger;

[0023] Figure 3 This is a schematic diagram of the heat pipe structure of this application;

[0024] Figure 4 This is a top view of the heat pipe of this application.

[0025] In the figure: 10 gas generator set, 11 gas transmission pipeline, 20 heat exchanger, 21 water inlet pipe 1, 22 water outlet pipe 1, 23 water outlet pipe 2, 24 water inlet pipe 2, 25 filling block 1, 26 I-shaped water pipe, 27 heat transfer pipe, 28 filling block 2, 29 groove, 210 inner pipe, 30 circulating water tank, 31 water inlet pipe 3, 32 water outlet pipe 3, 40 water replenishment tank, 41 water inlet pipe 4, 50 energy storage water tank, 51 water outlet pipe 4. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Embodiment 1

[0030] See also Figure 1-4 A device for recycling waste heat of circulating cooling water of a low-concentration gas generator set, comprising a gas generator set 10,

[0031] The left side of the gas generator set 10 is connected to a gas delivery pipeline 11, and a control valve is installed on the gas delivery pipeline 11 to provide gas raw materials to the gas generator set 10;

[0032] A heat exchanger 20 is provided on the right side of the gas generator assembly 10, and the external circulation cooling water inlet of the gas generator set 10 is connected to the left water outlet of the heat exchanger 20 through an inlet pipe 21; the external circulation cooling water outlet of the gas generator set 10 is connected to the left water inlet of the heat exchanger 20 through an outlet pipe 22;

[0033] A circulating water tank 30 is provided on the right side of the heat exchanger 20. The water inlet on the right side of the heat exchanger 20 is connected to the water outlet on the left side of the circulating water tank 30 through a second water inlet pipe 24; the water outlet on the right side of the heat exchanger 20 is connected to the water inlet on the left side of the circulating water tank 30 through a second water outlet pipe 23;

[0034] An energy storage water tank 50 is provided on the right side of the circulating water tank 30, and the right water outlet of the circulating water tank 30 is connected to the left water inlet of the energy storage water tank 50 through a water outlet pipe 32; the right water outlet of the energy storage water tank 50 is connected to a water outlet pipe 4 51;

[0035] A water replenishment tank 40 is provided on the upper side of the circulating water tank 30. The upper water inlet of the circulating water tank 30 and the lower water outlet of the water replenishment tank 40 are connected through an inlet pipe 31. The upper water inlet of the water replenishment tank 40 is connected to an inlet pipe 41.

[0036] Solenoid valves and water pumps are installed on the water inlet pipe 1 21, the water inlet pipe 24, the water inlet pipe 3 31, the water outlet pipe 1 22, the water outlet pipe 2 23, and the water outlet pipe 3 32; the solenoid valve is a one-way valve.

[0037] One-way control valves are installed on the water inlet pipe 41 and the water outlet pipe 51 to facilitate people to release the water in the energy storage water tank 50 for daily use, and to replenish water in the water replenishment tank 40 in time.

[0038] The solenoid valve and the water pump are electrically connected to the controller, and the controller serves as a main control module for controlling the working states of the solenoid valve and the water pump.

[0039] The heat exchanger 20 is provided with an I-shaped water pipe 26, the upper side of which is fixedly connected to the upper inner wall of the heat exchanger 20 through a filling block 1 25, and the bottom side is fixedly connected to the bottom inner wall of the heat exchanger 20 through a filling block 28;

[0040] The upper side of the I-shaped water pipe 26 is connected to the water inlet pipe 21, and the lower side of the I-shaped water pipe 26 is connected to the water outlet pipe 22, which is used for the circulation of external circulating cooling water of the gas generator set 10.

[0041] A heat conducting pipe 27 is disposed outside the I-shaped water pipe 26, and grooves 29 are provided on the upper and lower sides of the heat conducting pipe 27 so that the upper and lower ends of the I-shaped water pipe 26 can be stuck in the grooves 29;

[0042] An inner tube 210 is fixedly disposed inside the heat conducting tube 27 , and the inner tube 210 is fixedly sleeved outside the I-shaped water tube 26 .

[0043] The bottom side of the heat conducting pipe 27 is connected to the second water inlet pipe 24 , and the top side of the heat conducting pipe 27 is connected to the second water outlet pipe 23 .

[0044] The external circulating cooling water of the gas generator set 10 circulates from top to bottom through the I-shaped water pipe 26, and the water in the circulating water tank 30 circulates from bottom to top through the heat pipe 27. As the water in the heat pipe 27 circulates, heat exchange is performed based on heat transfer to take away the heat on the I-shaped water pipe 26.

[0045] A temperature sensor is fixedly connected to the inner wall of the upper side of the circulating water tank 30. As the water in the circulating water tank 30 flows, the heat of the external circulating cooling water of the gas generator set is taken away, so that the water temperature of the circulating water tank 30 gradually rises. When the temperature reaches the set value of the temperature sensor, the controller turns on the solenoid valve and the water pump on the outlet pipe 32 to discharge the water in the circulating water tank 30 into the energy storage water tank 50.

[0046] The temperature sensor is electrically connected to the controller.

[0047] A liquid level sensor is fixedly connected to the inner wall of the bottom side of the circulating water tank 30 , and the liquid level sensor is electrically connected to the controller to facilitate the water replenishment tank 40 to supply water to the circulating water tank 30 in a timely manner.

[0048] The energy storage water tank 50 can use an existing thermal insulation water tank to facilitate people's use.

[0049] When the embodiment of the present application is actually running, when the gas generator set 10 is working normally, the controller opens the solenoid valves and water pumps on the water inlet pipe 1 21, the water outlet pipe 1 22, the water inlet pipe 24, and the water outlet pipe 23, and the external circulating cooling water of the gas generator set 10 enters the heat exchanger 20 through the water inlet pipe 1 21 and circulates from top to bottom through the I-shaped water pipe 26. The water in the circulating water tank 30 enters the heat exchanger 20 through the water inlet pipe 24 and circulates from bottom to top through the heat pipe 27. With the circulation of water in the heat pipe 27, heat exchange is performed according to heat transfer, and the heat on the I-shaped water pipe 26 is taken away. With the flow of water in the circulating water tank 30, the heat of the external circulating cooling water of the gas generator set 10 is taken away, so that the water temperature of the circulating water tank 30 gradually rises. When its temperature reaches the set value of the temperature sensor, the controller opens the solenoid valve and the water pump on the water outlet pipe 3 32 to discharge the water in the circulating water tank 30 into the energy storage water tank 50 for storage and standby.

[0050] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: through the heat exchange between the I-shaped water pipe and the heat transfer pipe, the water circulation in the heat transfer pipe takes away the heat from the I-shaped water pipe, and as the water temperature of the circulating water tank gradually rises, the water in the circulating water tank is discharged into the energy storage water tank for storage and standby, thereby realizing the collection and utilization of the waste heat of the external circulating cooling water of the gas generator set.

[0051] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set, comprising a gas generator set, characterized in that: The left side of the gas generator set is connected to a gas delivery pipeline, and a control valve is installed on the gas delivery pipeline; A heat exchanger is provided on the right side of the gas generator assembly, and the water inlet of the external circulation cooling water of the gas generator set is connected with the water outlet on the left side of the heat exchanger through a water inlet pipe; the water outlet of the external circulation cooling water of the gas generator set is connected with the water inlet on the left side of the heat exchanger through a water outlet pipe; A circulating water tank is provided on the right side of the heat exchanger, and the water inlet on the right side of the heat exchanger is connected to the water outlet on the left side of the circulating water tank through a second water inlet pipe; the water outlet on the right side of the heat exchanger is connected to the water inlet on the left side of the circulating water tank through a second water outlet pipe; An energy storage water tank is provided on the right side of the circulating water tank, and the water outlet on the right side of the circulating water tank is connected to the water inlet on the left side of the energy storage water tank through a water outlet pipe 3; the water outlet on the right side of the energy storage water tank is connected to a water outlet pipe 4; A water replenishment tank is provided on the upper side of the circulating water tank, and the water inlet on the upper side of the circulating water tank is connected to the water outlet on the bottom side of the water replenishment tank through a water inlet pipe three, and the water inlet on the upper side of the water replenishment tank is connected to a water inlet pipe four.

2. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: The water inlet pipe 1, water inlet pipe 2, water inlet pipe 3, water outlet pipe 1, water outlet pipe 2, and water outlet pipe 3 are all equipped with solenoid valves and water pumps; the solenoid valves are one-way valves; the solenoid valves and water pumps are electrically connected to a controller.

3. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: The water inlet pipe four and the water outlet pipe four are both equipped with one-way control valves.

4. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: An I-shaped water pipe is provided in the heat exchanger, the upper side of which is fixedly connected to the upper inner wall of the heat exchanger through filling block 1, and the bottom side is fixedly connected to the bottom inner wall of the heat exchanger through filling block 2; the upper side of the I-shaped water pipe is connected to water inlet pipe 1, and the lower side of the I-shaped water pipe is connected to water outlet pipe 1.

5. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 4, characterized in that: A heat conducting pipe is arranged outside the I-shaped water pipe, and grooves are arranged on the upper and lower sides of the heat conducting pipe so that the upper and lower ends of the I-shaped water pipe can be stuck in the grooves; an inner pipe is fixed inside the heat conducting pipe, and the inner pipe is fixedly sleeved outside the I-shaped water pipe.

6. A device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 5, characterized in that: The bottom side of the heat conducting pipe is connected to the second water inlet pipe, and the upper side of the heat conducting pipe is connected to the second water outlet pipe.

7. The device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: The external circulating cooling water of the gas generator set circulates from top to bottom through the I-shaped water pipe, and the water in the circulating water tank circulates from bottom to top through the heat conduction pipe.

8. The device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: A temperature sensor is fixedly connected to the inner wall of the upper side of the circulating water tank, and the temperature sensor is electrically connected to the controller.

9. The device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: A liquid level sensor is fixedly connected to the inner wall of the bottom side of the circulating water tank, and the liquid level sensor is electrically connected to the controller.

10. The device for recycling waste heat from circulating cooling water of a low-concentration gas generator set as claimed in claim 1, characterized in that: The energy storage water tank is a thermal insulation water tank.

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