Waste heat recovery device of water source heat pump

Abstract

The utility model relates to a water source heat pump waste heat recovery device which comprises a heat exchange water tank and a heat exchange pipe, the heat exchange water tank comprises a tank body, a filter plate, a liquid level meter and a temperature monitor, the filter plate is vertically arranged in the tank body, a discharge hole is formed in the left side of the bottom of the tank body, a blocking plate used for completely sealing the discharge hole is inserted in the discharge hole, and the temperature monitor is arranged in the tank body. A water inlet is formed in the left side of the top of the box body, a drainage hole is formed in the top end of the right side of the box body, the heat exchange pipe is arranged on the right side of the interior of the box body, and an inlet and an outlet of the heat exchange pipe are both provided with extending ends which penetrate through the top of the box body and extend to the outer side of the box body; the inlet of the box body and the outlet of the box body are both provided with the quick-screwing connectors, and after high-heat industrial wastewater enters the box body from the water inlet in the top of the box body, due to the fact that the filtering plate is vertically arranged, the problem that filtering holes of the whole filtering plate are blocked at the same time does not exist; after part of the filtering holes are blocked, the other part of the filtering holes can continue to work.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat pump, especially relates to a water source heat pump waste heat recovery device. BACKGROUND

[0002] In the industrial and agricultural production process, the production process with large heat demand generally adopts oil-fired or gas-fired boiler heating, and the production process with small heat demand generally adopts electric heating or electric boiler form. On the other hand, there are a large amount of low-temperature waste heat and waste heat sources in the industrial and agricultural production process, such as process cooling water at 40-60℃ and cooling water of data center air conditioning system. Therefore, in the production process, the heat pump technology is used to recover the low-temperature waste heat for heating. Compared with the traditional boiler heating system, the heat pump has high thermal efficiency, remarkable energy saving and environmental protection effect, obvious economic benefit, safe and reliable equipment, and easy realization of higher automation degree. The heat pump has become a research hotspot in the field of energy application due to its high heating efficiency, energy saving and environmental protection.

[0003] At present, a Chinese patent with authorization announcement No. CN111649603A discloses an industrial boiler wastewater waste heat recovery device, which comprises a waste heat recovery box. The inside of the waste heat recovery box is sequentially provided with a filter cavity, an annular heat exchange water cavity and a discharge cavity from left to right. A heat conducting pipe is rotatably installed in the middle of the annular heat exchange water cavity. The inner cavity of the heat conducting pipe is a wastewater conveying cavity. A plurality of spoiler plates are fixedly installed on the cavity wall of the annular heat exchange water cavity. A fixed shaft is fixedly installed in the middle of the wastewater conveying cavity. A plurality of scrapers are fixedly installed on the fixed shaft. A servo motor is also fixedly installed on one end of the waste heat recovery box close to the discharge cavity. The output shaft of the servo motor is connected and fixed with the heat conducting pipe through a plurality of inclined connecting rods. The device has good heat exchange effect, and the heat exchange performance remains stable over time, improves the heat exchange efficiency and waste heat utilization rate, realizes resource recycling, and is energy-saving and environmentally friendly.

[0004] The above-mentioned prior art scheme has the following defects: the industrial wastewater flows from the filter cavity, and is filtered by the filter plate. However, the industrial wastewater contains industrial impurities and some product waste residues, which causes the filter plate to be blocked, so that the industrial wastewater enters the annular heat exchange water cavity at a slow speed, and less heat is generated, which is not convenient for waste heat recovery and utilization. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a water source heat pump waste heat recovery device to solve the problems existing in the prior art.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] The utility model provides a kind of water source heat pump waste heat recovery device, including heat exchange water tank and heat exchange pipe, the heat exchange water tank includes tank, filter plate, liquid level meter and temperature monitor, the inner wall rear side middle position of the tank is provided with vertical first dovetail groove, the inner wall front side middle position of the tank is provided with second dovetail groove, the filter plate is vertically arranged in the inside of the tank, the rear end of the filter plate is provided with the first dovetail block compatible with first dovetail groove, the front end of the filter plate is provided with the second dovetail block compatible with the second dovetail groove, the top of the filter plate is provided with recess, the recess is embedded with sealing strip, the bottom left side of the tank is provided with discharge hole, the discharge hole is inserted with the baffle for completely closing discharge hole, the baffle is transitionally cooperated with the discharge hole, the top left side of the tank is provided with water inlet, the right side top end of the tank is provided with drain hole, the heat exchange pipe is arranged in the inside right side of the tank, the inlet of the heat exchange pipe and the outlet of the heat exchange pipe are provided with extension end passing through the top of tank and extending to the outside of tank, the inlet of the tank and the outlet of the tank are provided with quick coupling.

[0008] By adopting the above technical scheme, the industrial wastewater with high heat enters the inside of the tank from the water inlet at the top of the tank after the filter plate is filtered, and the clean water is accumulated in the inside of the tank, when the water level is higher than the drain hole at the right top end of the tank, the clean sewage is discharged from the tank, and the impurities in the sewage are isolated in the inside left side of the tank. The setting makes the sewage stay in the tank for a period of time, so that the heat exchange pipe can better absorb the heat in the sewage. Because the filter plate is vertically arranged, there is no problem that all the filter holes of the filter plate are blocked at the same time. After part of the filter holes are blocked, the other part of the filter holes can continue to work.

[0009] In further embodiments, the left side of the filter plate is provided as an inclined surface, and the thickness of the filter plate gradually decreases from top to bottom.

[0010] By adopting the above technical scheme, because the filter plate is vertically arranged in the inside of the tank, part of the impurities will block the filter holes on the filter plate after the impurities are accumulated in the left side of the tank. By setting the left side of the filter plate as an inclined surface and setting the top thick and the bottom thin, the blockage can fall to the bottom end of the tank under the double action of the incoming water flow and gravity, avoiding the upper half of the filter plate being blocked, greatly increasing the service life of the device.

[0011] In further embodiments, the liquid level meter is fixedly installed on the right side of the inside of the tank, and the liquid level meter is used to measure the liquid level height on the right side of the inside of the tank. The temperature monitor is arranged at the central position of the inside right side of the tank.

[0012] By adopting the technical scheme, because the liquid on the right side of the inside of the box is filtered, there is no large-particle solid matter, and in order to prolong the service life of the liquid level meter, the liquid level meter is arranged on the right side of the inside of the box.

[0013] In a further embodiment, the box is sequentially provided with an inner wall layer, a hollow layer, a thermal insulation layer and an outer wall layer from inside to outside.

[0014] By adopting the technical scheme, the heat exchange pipe can better absorb the heat in the liquid.

[0015] In a further embodiment, a plurality of extension plates are arranged at equal intervals on the bottom periphery of the blocking plate, the extension plates are each provided with a through hole penetrating up and down, the bottom of the box is provided with a threaded hole corresponding to the through hole, and the blocking plate is fixedly installed on the bottom of the box by bolts.

[0016] In a further embodiment, the top end periphery of the blocking plate is provided with a sealing ring.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. By vertically arranging the filter plate in the inside of the box, the industrial wastewater with high heat can enter the inside of the box from the water inlet at the top of the box, and then be filtered by the filter plate, and the clean water is accumulated in the inside of the box, when the water level is higher than the drain hole at the top of the right side of the box, the clean sewage is discharged from the box, and the impurities in the sewage are isolated in the inside of the left side of the box, the setting makes the sewage stay in the inside of the box for a period of time, so that the heat exchange pipe can better absorb the heat in the sewage, and because the filter plate is vertically arranged, the problem that the filter holes of the entire filter plate are simultaneously blocked does not exist, and after part of the filter holes are blocked, another part of the filter holes can continue to work. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic view of the utility model;

[0020] Figure 2 is the structure schematic view of the inside of the box for embodying the utility model.

[0021] In the figure, 1 is a heat exchange water tank, 11 is a box, 12 is a filter plate, 13 is a liquid level meter, 14 is a temperature monitor, 2 is a heat exchange pipe, and 3 is a blocking plate. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below in combination with the drawings.

[0023] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0024] Example 1:

[0025] like Figures 1-2 As shown, a waste heat recovery device for a water source heat pump includes a heat exchange tank 1 and heat exchange tubes 2. The tank body 11 is configured from the inside out as an inner wall layer, a hollow layer, an insulation layer, and an outer wall layer. The heat exchange tank 1 includes a tank body 11, a filter plate 12, a level gauge 13, and a temperature monitor 14. A vertical first dovetail groove is provided at the middle of the rear side of the inner wall of the tank body 11, and a second dovetail groove is provided at the middle of the front side of the inner wall of the tank body 11. The filter plate 12 is vertically arranged inside the tank body 11. A first dovetail block adapted to the first dovetail groove is provided at the rear end of the filter plate 12, and a second dovetail block adapted to the second dovetail groove is provided at the front end of the filter plate 12. A groove is provided at the top of the filter plate 12, and a sealing strip is embedded in the groove. The left side of the filter plate 12 is set as an inclined surface, and the thickness of the filter plate 12 gradually decreases from top to bottom. A discharge hole is provided on the left side of the bottom of the tank body 11, and a discharge device for completely sealing the discharge hole is inserted in the discharge hole. The material hole plug 3 is fitted with the discharge hole. The bottom periphery of the plug 3 is provided with multiple extended plates at equal intervals. Each extended plate is provided with a through hole running vertically. The bottom of the box 11 is provided with threaded holes corresponding to the through holes. The plug 3 is fixedly installed at the bottom of the box 11 by bolts. The top periphery of the plug 3 is provided with a sealing ring. The top left side of the box 11 is provided with a water inlet. The top right side of the box 11 is provided with a drain hole. The heat exchange tube 2 is located inside the right side of the box 11. The inlet and outlet of the heat exchange tube 2 are provided with extension ends that pass through the top of the box 11 and extend to the outside of the box 11. The inlet and outlet of the box 11 are provided with quick-connect fittings. The level gauge 13 is fixedly installed inside the right side of the box 11. The level gauge 13 is used to measure the liquid level height inside the right side of the box 11. The temperature monitor 14 is located at the center of the inside right side of the box 11.

[0026] Specific implementation process: the industrial wastewater with high heat enters the inside of the box from the water inlet on the top of the box, is filtered by the filter plate, the clean water body part is accumulated in the inside of the box, when the water level is higher than the drain hole on the right top end of the box, the clean sewage is discharged from the box, the impurities in the sewage are isolated in the inside left side of the box, the setting makes the sewage stay in the inside of the box for a period of time, so that the heat absorption of the heat exchange pipe in the sewage is better, and because the filter plate is vertically arranged, the problem that the filter holes of the whole filter plate are blocked at the same time does not exist, after part of the filter holes are blocked, another part of the filter holes can continue to work.

[0027] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integral connection; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments disclosed in the present application can be understood according to the specific circumstances.

[0028] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make non-creative modifications to the embodiments according to the needs after reading the present application, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A water source heat pump waste heat recovery device, comprising a heat exchange water tank (1) and a heat exchange pipe (2), characterized in that: The heat exchange water tank (1) comprises a tank body (11), a filter plate (12), a liquid level gauge (13) and a temperature monitor (14), a vertical first dovetail groove is arranged at the middle position of the rear side of the inner wall of the tank body (11), a second dovetail groove is arranged at the middle position of the front side of the inner wall of the tank body (11), the filter plate (12) is vertically arranged in the inside of the tank body (11), a first dovetail block adapted to the first dovetail groove is arranged at the rear end of the filter plate (12), a second dovetail block adapted to the second dovetail groove is arranged at the front end of the filter plate (12), a groove is arranged at the top of the filter plate (12), a sealing strip is embedded in the groove, a discharge hole is arranged at the left bottom of the tank body (11), a blocking plate (3) for completely closing the discharge hole is inserted in the discharge hole, the blocking plate (3) is in transition fit with the discharge hole, a water inlet is arranged at the left top of the tank body (11), a drain hole is arranged at the right top end of the tank body (11), the heat exchange pipe (2) is arranged at the inside right side of the tank body (11), the inlet of the heat exchange pipe (2) and the outlet of the heat exchange pipe (2) are both provided with an extension end penetrating through the top of the tank body (11) and extending to the outside of the tank body (11), the inlet of the tank body (11) and the outlet of the tank body (11) are both provided with a quick coupling joint.

2. The water source heat pump waste heat recovery device according to claim 1, characterized in that: The left side of the filter plate (12) is arranged as an inclined surface, and the thickness of the filter plate (12) gradually decreases from top to bottom.

3. The water source heat pump waste heat recovery device of claim 1, wherein: The liquid level gauge (13) is fixedly installed at the right side inside the tank body (11), and is used for measuring the liquid level height of the right side inside the tank body (11), and the temperature monitor (14) is arranged at the central position of the right side inside the tank body (11).

4. The water source heat pump waste heat recovery device of claim 1, wherein: The tank body (11) is sequentially provided with an inner wall layer, a hollow layer, a temperature insulation layer and an outer wall layer from inside to outside.

5. The water source heat pump waste heat recovery device of claim 1, wherein: A plurality of outer extension plates are equally arranged at the bottom periphery of the blocking plate (3), through holes penetrating from top to bottom are arranged on the outer extension plates, the bottom of the tank body (11) is provided with screw holes corresponding to the through holes one by one, and the blocking plate (3) is fixedly installed on the bottom of the tank body (11) through bolts.

6. The water source heat pump waste heat recovery device of claim 1, wherein: A sealing ring is arranged at the top periphery of the blocking plate (3).

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