Water quenching pool water heat utilization device

Abstract

The utility model provides a water quenching pool water heat utilization device, comprising: a water tank, in which a partition plate for dividing the water tank into a water return space and a water storage space is arranged; one end of the heat exchange pipe is communicated with the water outlet of the water storage space, the other end of the heat exchange pipe sequentially penetrates through, extends into and penetrates through the water quenching pool, the heat exchange pipe between the water quenching pool and the water storage space is communicated with the water outlet of the water return space through a connecting pipe, and a temperature sensor is arranged on a pipe body between the other end of the heat exchange pipe and the water quenching pool; a water inlet of the three-way electromagnetic valve is communicated with the other end of the heat exchange pipe, one water outlet of the three-way electromagnetic valve is communicated with a water inlet of the water return space through a water return pipe, and the other water outlet of the three-way electromagnetic valve is communicated with heating equipment through a hot water pipe. Waste of water heat of the water quenching pool is avoided, meanwhile, the cost needed by heating of a large factory is reduced, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The present application relates to heat utilization technology, and in particular to a water quenching pool water heat utilization device. Background Art

[0002] A refining furnace is a device used to refine metals or other substances, and its operating temperature can often be as high as about 1600℃. In the production process of the refining furnace, when the metal or other substance is heated to a certain temperature, it needs to be cooled to control the temperature or stop the reaction. At this time, the high heat conductivity of water is used to rinse the metal or other substance with water, and the water used to rinse the metal or other substance is collected in a water quenching pool to form water quenching pool water. The water temperature of the water quenching pool water can reach about 70℃-80℃, that is, the water in the water quenching pool contains a lot of heat. If the heat of the water quenching pool water is not used, the heat of the water quenching pool water will be wasted.

[0003] Refining furnaces are usually used in large factories. In order to ensure the normal production process of refining furnaces in large factories under low temperatures, it is necessary to provide a warm and comfortable working environment for workers in the factory through heating. Factories usually use electric heating or boiler heating to achieve heating, and the above two commonly used heating methods will consume a certain amount of electricity, coal and other energy. Therefore, in order to save the energy required for heating in factories under low temperatures and to reasonably utilize the heat of water quenching pool water, it is necessary to utilize the heat of water quenching pool water. Utility Model Content

[0004] The present application provides a water quenching pool water heat utilization device to solve the technical problems described in the above background technology.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] The present application provides a water quenching pool water heat utilization device, comprising:

[0007] A water tank, wherein a partition plate is provided inside the water tank for dividing the water tank into a water return space and a water storage space;

[0008] A heat exchange tube, one end of which is connected to the water outlet of the water storage space, and the other end of which passes through, extends into and passes out of the water quenching tank in sequence. The heat exchange tube between the water quenching tank and the water storage space is connected to the water outlet of the return water space through a connecting pipe, and a temperature sensor is provided on the tube body between the other end of the heat exchange tube and the water quenching tank;

[0009] A three-way solenoid valve, wherein the water inlet of the three-way solenoid valve is connected to the other end of the heat exchange tube, one of the water outlets of the three-way solenoid valve is connected to the water inlet of the return water space through a return pipe, and the other water outlet of the three-way solenoid valve is connected to a heating device through a hot water pipe.

[0010] Optionally, the heat exchange tube includes a first pipe section, a second pipe section and a third pipe section which are connected in sequence; one end of the first pipe section away from the second pipe section is connected to the water outlet of the water storage space, the second pipe section is located in the water quenching pool and is composed of multiple U-shaped tubes connected end to end, and one end of the third pipe section away from the second pipe section is connected to the water inlet of the three-way solenoid valve.

[0011] Optionally, the second pipe section is made of copper pipe.

[0012] Optionally, a baffle is provided in the second pipe section, and a flow hole is provided on the baffle.

[0013] Optionally, an insulation layer is provided on the outer peripheral walls of the hot water pipe, the return pipe and the connecting pipe.

[0014] Optionally, a liquid level sensor is provided in the water storage space and is connected to a water supply pipe, and a flow regulating valve is provided on the water supply pipe.

[0015] Optionally, the water tank is a stainless steel insulated water tank.

[0016] The water heat utilization device for water quenching pool provided by the present application divides the water tank into a return water space and a water storage space by a partition plate, and the water in the water storage space is passed into the heat exchange tube. When the water in the heat exchange tube flows through the heat exchange tube located in the water quenching pool, the water in the heat exchange tube exchanges heat with the water in the water quenching pool, so that the temperature of the water in the heat exchange tube increases. When the temperature sensor detects that the water temperature in the heat exchange tube is not enough for the water temperature required for heating, the water in the heat exchange tube flows into the return water space through a water outlet on the three-way solenoid valve and the return water pipe in turn, and the water in the return water space flows into the heat exchange tube through the connecting pipe, so that the water in the heat exchange tube continues to exchange heat with the water in the water quenching pool. Until the temperature sensor detects that the water in the heat exchange tube is heated to the water temperature required for heating, the water in the heat exchange tube flows into the heating equipment through another water outlet on the three-way solenoid valve and the hot water pipe in turn, and the large factory is heated by the heating equipment. This not only avoids the waste of heat of the water quenching pool water, but also reduces the heating cost of the large factory, thereby achieving the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a water quenching pool water heat utilization device provided in one embodiment of the present application;

[0019] Figure 2 A schematic diagram of the internal structure of a water tank provided in another embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a second pipe section located in a water pool provided in another embodiment of the present application;

[0021] Figure 4 A schematic structural diagram of a second pipe section provided in another embodiment of the present application having a baffle disposed therein.

[0022] In the figure: 100, water tank; 101, return water space; 102, water storage space; 1021, liquid level sensor; 103, partition plate; 200, heat exchange tube; 201, temperature sensor; 202, first pipe section; 203, second pipe section; 2031, U-shaped tube; 2032, baffle; 2033, flow hole; 204, third pipe section; 205, first circulating water pump; 300, water quenching tank; 400, connecting pipe; 500, three-way solenoid valve; 600, return water pipe; 601, second circulating water pump; 700, hot water pipe; 800, heating equipment; 900, water supply pipe; 901, flow regulating valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0024] refer to Figures 1 to 4 The present application provides a water quenching pool water heat utilization device, comprising:

[0025] A water tank 100 is provided with a partition plate 103 for dividing the water tank 100 into a return water space 101 and a water storage space 102; wherein the partition plate 103 can be arranged horizontally or vertically in the water tank 100 to divide the water tank 100 into the return water space 101 and the water storage space 102 distributed vertically or the return water space 101 and the water storage space 102 distributed horizontally. The specific arrangement of the partition plate 103 in the water tank 100 can be set according to actual needs, and the present application does not make any specific limitation on it.

[0026] A heat exchange tube 200, one end of which is connected to the water outlet of the water storage space 102, and the other end of which passes through, extends into and passes out of the water quenching pool 300 in sequence. The heat exchange tube 200 between the water quenching pool 300 and the water storage space 102 is connected to the water outlet of the return water space 101 through a connecting pipe 400, and a temperature sensor 201 is arranged on the tube body between the other end of the heat exchange tube 200 and the water quenching pool 300; wherein, the water tank 100 can be arranged close to the water quenching pool 300, so that the water in the water storage space 102 can quickly flow into the heat exchange tube 200 located in the water quenching pool 300, and exchange heat with the water in the water quenching pool 300 to increase its own temperature, thereby realizing effective utilization of the water heat in the water quenching pool 300. A first circulating water pump 205 is further provided on the tube body between the other end of the heat exchange tube 200 and the water quenching tank 300 . The purpose of the first circulating water pump 205 is to pump water in the water storage space 102 to the heat exchange tube 200 .

[0027] A three-way solenoid valve 500, the water inlet of the three-way solenoid valve 500 is connected to the other end of the heat exchange tube 200, one of the water outlets of the three-way solenoid valve 500 is connected to the water inlet of the return water space 101 through the return water pipe 600, and the other water outlet of the three-way solenoid valve 500 is connected to the heating equipment 800 through the hot water pipe 700. Among them, the temperature sensor 201 is used to detect the temperature of the water flowing out of the heat exchange tube 200 located in the water quenching tank 300 in real time, so as to accurately grasp whether the water in the heat exchange tube 200 reaches the temperature required for heating after the heat exchange with the water in the water quenching tank 300. The heating equipment 800 can be a floor heating pipe (buried under the ground of a large factory) or a radiator (set in each factory building of a large factory), that is, the water in the hot water pipe 700 flows into the floor heating pipe or radiator, so as to achieve the purpose of heating the large factory. The specific type of the heating equipment 800 can be set according to actual needs, so this application does not specifically limit it here. The return water pipe 600 is provided with a second circulating water pump 601 , and the second circulating water pump 601 is used to pump the water in the heat exchange tube 200 into the return water space 101 through the return water pipe 600 .

[0028] The water quenching pool water heat utilization device provided in the present application divides the water tank 100 into a return water space 101 and a water storage space 102 through a partition plate 103, and the water in the water storage space 102 is passed into the heat exchange tube 200. When the water in the heat exchange tube 200 flows through the heat exchange tube 200 located in the water quenching pool 300, the water in the heat exchange tube 200 exchanges heat with the water in the water quenching pool 300, so that the temperature of the water in the heat exchange tube 200 increases. When the temperature sensor 201 detects that the water temperature in the heat exchange tube 200 is not enough to meet the water temperature required for heating, the water in the heat exchange tube 200 flows into the return water pipe 600 through a water outlet on the three-way solenoid valve 500 and a return water pipe 600 in sequence. The water in the return water space 101 flows into the heat exchange tube 200 through the connecting pipe 400, so that the water in the heat exchange tube 200 continues to exchange heat with the water in the water quenching tank 300 until the temperature sensor 201 detects that the water in the heat exchange tube 200 is heated to the water temperature required for heating. The water in the heat exchange tube 200 flows into the heating equipment 800 through another water outlet on the three-way solenoid valve 500 and the hot water pipe 700 in turn, and the large factory is heated by the heating equipment 800. This not only avoids the waste of heat of the water in the water quenching tank 300, but also reduces the heating cost of the large factory, thereby achieving the purpose of energy saving.

[0029] In some embodiments, reference Figure 3 The heat exchange tube 200 in the present application includes a first tube section 202, a second tube section 203 and a third tube section 204 which are connected in sequence; the end of the first tube section 202 away from the second tube section 203 is connected to the water outlet of the water storage space 102, the second tube section 203 is located in the water quenching pool 300 and is formed by connecting a plurality of U-shaped tubes 2031 end to end, and the end of the third tube section 204 away from the second tube section 203 is connected to the water inlet of the three-way solenoid valve 500. Among them, the plurality of U-shaped tubes 2031 can be distributed in a tube structure of multiple rows and columns, and the number of the U-shaped tubes 2031 can be set according to actual needs, so the present application does not specifically limit it here.

[0030] In the above embodiment, the purpose of the multiple U-shaped tubes 2031 is to extend the length of the second pipe segment 203 located in the water quenching pool 300, so that the distance traveled by the water entering the second pipe segment 203 in the second pipe segment 203 is increased, so that the water in the second pipe segment 203 is in full contact with the water in the water quenching pool 300 and heat exchange occurs, thereby fully utilizing the heat of the water in the water quenching pool 300 to quickly increase the temperature of the water in the second pipe segment 203.

[0031] In some embodiments, the second pipe section 203 in the present application is made of copper pipe. Copper pipe is also called red copper pipe, a kind of non-ferrous metal pipe, which is a pressed and drawn seamless pipe. Copper pipe has the advantages of strong corrosion resistance, not easy to oxidize, not easy to react chemically with some liquid substances, easy to bend, light weight, good thermal conductivity, high low temperature strength, etc.

[0032] In the above embodiment, the second pipe section 203 is located in the water quenching pool 300, and the material of the second pipe section 203 is set to be a copper pipe material, utilizing the good thermal conductivity of the copper pipe, so that the water in the second pipe section 203 can fully exchange heat with the water in the water quenching pool 300, so that the water in the second pipe section 203 is quickly heated, thereby improving the heating efficiency of the water in the second pipe section 203 and the utilization rate of the heat of the water in the water quenching pool 300.

[0033] In some embodiments, reference Figure 4 In the present application, a baffle plate 2032 is arranged in the second pipe section 203, and a flow hole 2033 is arranged on the baffle plate 2032. The baffle plate 2032 matches the inner diameter of the second pipe section 203, and there can be multiple baffle plates 2032, and multiple baffle plates 2032 are arranged in the second pipe section 203 at equal intervals. There can be multiple flow holes 2033 on the baffle plate 2032, and multiple flow holes 2033 are arranged in equal intervals on the baffle plate 2032. The number of baffle plates 2032 and the aperture and number of the flow holes 2033 on each baffle plate 2032 can be set according to actual needs, so the present application does not specifically limit them here.

[0034] In the above embodiment, water flowing out from the water storage space 102 or the return water space 101 flows into the second pipe segment 203 through the first pipe segment 202, and then flows out to the third pipe segment 204 through the flow holes 2033 on the baffle 2032 in the second pipe segment 203. The baffle 2032 and the flow holes 2033 thereon play the role of reducing the flow rate of water in the second pipe segment 203, extending the residence time of water in the second pipe segment 203, so that the water in the second pipe segment 203 is fully in contact with the water in the water quenching pool 300, thereby improving the heat exchange efficiency between the water in the second pipe segment 203 and the water in the water quenching pool 300, and increasing the utilization rate of the heat of the water in the water quenching pool 300.

[0035] In some embodiments, the outer peripheral walls of the hot water pipe 700, the return pipe 600 and the connecting pipe 400 in the present application are all provided with an insulation layer. The insulation layer may be made of insulation cotton, ceramic, polytetrafluoroethylene and the like, and the thickness and material of the insulation layer may be set according to actual needs, so the present application does not specifically limit it.

[0036] In the above embodiment, the water flowing into the hot water pipe 700 and the water flowing into the return pipe 600 both flow out from the heat exchange pipe 200, the water in the connecting pipe 400 flows out from the return water space 101, and the water in the return water space 101 flows out from the heat exchange pipe 200, and the water in the heat exchange pipe 200 is the water after heat exchange with the water in the water quenching tank 300, and the temperature of this part of water is higher than the water in the water storage space 102. Therefore, by providing an insulation layer on the hot water pipe 700, the return water pipe 600 and the connecting pipe 400, the heat loss of this part of water is avoided, thereby reducing the water temperature.

[0037] In some embodiments, reference Figure 2 In the present application, a liquid level sensor 1021 is arranged in the water storage space 102 and is connected to a water supply pipe 900, and a flow regulating valve 901 is arranged on the water supply pipe 900. Among them, the liquid level sensor 1021 is a pressure sensor for measuring the liquid level, which can be specifically divided into two categories: one is a contact type, including a single flange static pressure / double flange differential pressure level transmitter, a float type level transmitter, a magnetic level transmitter, a immersion type level transmitter, an electric internal float level transmitter, an electric buoy level transmitter, a capacitive level transmitter, a magnetostrictive level transmitter, a servo level transmitter, etc. The second type is a non-contact type, which is divided into an ultrasonic level transmitter, a radar level transmitter, etc. The type, specific specifications, and models of the liquid level sensor can be selected according to actual needs, so this application does not specifically limit it here.

[0038] In the above embodiment, the water level in the water storage space 102 is detected in real time by the liquid level sensor 1021, so that there is always enough water stored in the water storage space 102 to exchange heat with the water in the water quenching tank 300, thereby improving the utilization rate of the heat of the water in the water quenching tank 300. When the liquid level sensor 1021 detects that the liquid level of the water stored in the water storage space 102 is low, the flow regulating valve 901 is opened to inject water into the water storage space 102 through the water supply pipe 900. The amount of water injected into the water storage space 102 can be measured in real time by the flow regulating valve 901, so that the water injection process is controllable, thereby achieving precise water injection.

[0039] In some embodiments, the water tank 100 in the present application is a stainless steel insulated water tank. Among them, since the water tank 100 is divided into a return water space 101 and a water storage space 102 by a partition plate 103, and the water in the return water space 101 is water whose temperature does not reach the water temperature required for heating after heat exchange with the water quenching pool 300, this part of water has a certain temperature. Therefore, in order to avoid the heat loss of this part of water and reduce its water temperature, the water tank 100 is limited to a stainless steel insulated water tank. A stainless steel insulated water tank refers to a heat-insulating material as a core layer, a stainless steel water tank as an inner layer, and an ordinary stainless steel plate as an outer layer, and then the inner and outer stainless steel layers and the core layer are optimized and combined to achieve the insulation effect under the joint action of the inner and outer layers and the core layer. Specifically, the core layer can be made of polyurethane foam, polystyrene, polypropylene foam, rock wool, PEF, the inner layer can be made of food-grade stainless steel plate, galvanized plate, aluminum plate or color steel plate, and the outer layer can be made of general materials, such as stainless steel plate, galvanized plate, aluminum plate or color steel plate, etc. The materials of the core layer, inner layer and outer layer can be set according to actual needs. Therefore, this application does not specifically limit the materials of the core layer, inner layer and outer layer.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A water quenching pool water heat utilization device, characterized in that: include: A water tank (100), wherein a partition plate (103) is provided inside the water tank (100) for partitioning the water tank (100) into a water return space (101) and a water storage space (102); a heat exchange tube (200), one end of the heat exchange tube (200) being in communication with the water outlet of the water storage space (102), the other end of the heat exchange tube (200) sequentially passing through, extending into and passing out of the water quenching pool (300), the heat exchange tube (200) between the water quenching pool (300) and the water storage space (102) being in communication with the water outlet of the return water space (101) via a connecting tube (400), and a temperature sensor (201) being arranged on the tube body between the other end of the heat exchange tube (200) and the water quenching pool (300); A three-way solenoid valve (500), wherein the water inlet of the three-way solenoid valve (500) is connected to the other end of the heat exchange tube (200), one of the water outlets of the three-way solenoid valve (500) is connected to the water inlet of the return water space (101) through a return water pipe (600), and the other water outlet of the three-way solenoid valve (500) is connected to a heating device (800) through a hot water pipe (700).

2. The water quenching pool water heat utilization device according to claim 1, characterized in that: The heat exchange tube (200) comprises a first tube section (202), a second tube section (203) and a third tube section (204) which are connected in sequence; one end of the first tube section (202) away from the second tube section (203) is connected to the water outlet of the water storage space (102); the second tube section (203) is located in the water quenching pool (300) and is formed by connecting a plurality of U-shaped tubes (2031) end to end; and one end of the third tube section (204) away from the second tube section (203) is connected to the water inlet of the three-way solenoid valve (500).

3. The water quenching pool water heat utilization device according to claim 2, characterized in that: The second pipe section (203) is made of copper pipe.

4. The water quenching pool water heat utilization device according to claim 2, characterized in that: A baffle plate (2032) is provided in the second pipe section (203), and a flow hole (2033) is provided on the baffle plate (2032).

5. The water quenching pool water heat utilization device according to claim 1, characterized in that: The outer peripheral walls of the hot water pipe (700), the return water pipe (600) and the connecting pipe (400) are all provided with a thermal insulation layer.

6. The water quenching pool water heat utilization device according to claim 1, characterized in that: A liquid level sensor (1021) is provided in the water storage space (102) and is connected to a water supply pipe (900), wherein a flow regulating valve (901) is provided on the water supply pipe (900).

7. The water quenching pool water heat utilization device according to any one of claims 1 to 6, characterized in that: The water tank (100) is a stainless steel heat-insulating water tank.

Images