Bath sewage waste heat utilization device

Abstract

The utility model relates to the technical field of waste water waste heat utilization, in particular to a bathing waste water waste heat utilization device which not only filters bathing waste water for many times to prevent impurities from blocking a heat exchange device, but also utilizes waste heat in the bathing waste water to improve the energy utilization rate and avoid overlarge water temperature fluctuation. Comprising an efficient filtering system; the system further comprises an efficient heating system and a bathing water supply system, the efficient heating system is installed on the efficient filtering system and exchanges heat between tap water and sewage, and the bathing water supply system is installed on the efficient heating system and heats the tap water.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sewage waste heat utilization, particularly to a bathing sewage waste heat utilization device. BACKGROUND

[0002] At present, in order to rectify environmental pollution and control air pollution, coal-fired boilers are gradually banned in various industries, and green and environmentally friendly heat pump units are widely used. The first choice for bath boiler reconstruction is a heat pump unit. However, direct discharge of bathing sewage still results in serious heat waste.

[0003] The existing bathing sewage waste heat utilization device, such as the bathing sewage waste heat utilization system using a sewage heat exchanger disclosed in the utility model patent with application number 201822043852.5, mainly includes a bathing sewage pool, a sewage heat exchanger, a clean water pipeline, a cleaning device connected to the sewage heat exchanger, the upper part of the sewage heat exchanger is provided with a sewage inlet and a clean water outlet, and the lower part is provided with a sewage outlet and a clean water inlet. The bathing sewage pool is connected to the sewage inlet through a sewage pump, the clean water pipeline penetrates the inside of the sewage heat exchanger and is connected to a heat pump unit, the cleaning device includes a sand tank filled with sand and a pumping pipeline connected to the sewage outlet and the sewage inlet of the sewage heat exchanger, and a sand suction mechanism is arranged on the pumping pipeline; in use, the sewage pump is started to deliver the filtered bathing sewage to the sewage heat exchanger, the clean water in the clean water pipeline is heat exchanged by the sewage heat exchanger, and the preheated clean water enters the heat pump unit for use. When the sewage heat exchanger is severely clogged, the sewage pump is turned off, the valves before the sewage inlet and after the sewage outlet are closed, and the water inlet valve and the water outlet valve on the pumping pipeline are opened. The pressurized water flow passes through the Venturi tube, absorbs the sand into the water flow, and then enters the sewage heat exchanger to clean the dirt in the cylinder.

[0004] However, the existing bathing water is directly injected into the water tank or bath by the steam produced by the boiler, resulting in large water temperature fluctuations and energy waste. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a bathing sewage waste heat utilization device that not only filters bathing sewage multiple times to avoid impurities from clogging the heat exchange device, but also utilizes the waste heat in bathing sewage, thereby improving energy utilization and avoiding large water temperature fluctuations in the bathing sewage waste heat utilization device.

[0006] The utility model discloses a bathing sewage waste heat utilization device, including efficient filtration system, still including efficient heating system and bathing water supply system, efficient heating system installs on efficient filtration system and carries out heat exchange with tap water and sewage, and bathing water supply system installs on efficient heating system and carries out heating to tap water, bathing sewage enters efficient filtration system and carries out multiple filtration, and the sewage after filtration enters efficient heating system, and tap water is transported to bathing water supply system and is stored, and simultaneously bathing water supply system continuously transports tap water to efficient heating system and carries out heat exchange with the sewage after filtration, when the water temperature of tap water in bathing water supply system reaches the set value, can supply water to bathroom.

[0007] Preferably, the efficient filtration system includes two groups of first-stage primary filters, a drain pipe, a gate valve, a first-stage secondary filter, a bathing sewage pump, a second-stage filter, a bathing sewage tank and a sewage well, the two groups of first-stage primary filters are respectively communicated with the bathing sewage, the drain pipe is communicated and installed on the two groups of first-stage primary filters, the gate valve is installed on the drain pipe, the first-stage secondary filter is communicated with the inside of the drain pipe, the bathing sewage pump is communicated with the inside of the first-stage secondary filter, the second-stage filter is communicated with the inside of the bathing sewage pump, the bathing sewage tank is communicated with the inside of the second-stage filter, and an overflow pipe of the bathing sewage tank is communicated with the inside of the drain pipe, a communication point is located at the rear side of the gate valve, and the sewage well is communicated with the inside of the drain pipe; the bathing sewage passes through the two groups of first-stage primary filters, enters the drain pipe after filtering out part of hair, the gate valve is closed, the sewage enters the first-stage secondary filter to further filter hair, then the sewage enters the second-stage filter after being pressurized by the bathing sewage pump, filters out impurities such as silt and tiny dirt in the sewage, and finally enters the bathing sewage tank, the water amount in the bathing sewage tank continuously increases, when the water level rises to the position of the overflow pipe, the bathing sewage returns to the drain pipe at the rear side of the gate valve through the overflow pipe, is discharged to the sewage well, and finally enters a domestic sewage treatment station.

[0008] Preferably, the efficient heating system includes a heat source water pump, an evaporator, a condenser and a circulating heating water pump, the heat source water pump is communicated with the inside of the bathing sewage tank, the evaporator is communicated with the inside of the bathing sewage tank and the heat source water pump, the condenser is communicated with the evaporator through a heat exchange pipeline, a compressor and an expansion valve are arranged on the heat exchange pipeline, and the circulating heating water pump is communicated with the inside of the condenser; the sewage in the bathing sewage tank is transported to the evaporator after being pressurized by the heat source water pump, releases heat to refrigerant, the sewage temperature is reduced by 5 DEG C, and then returns to the bathing sewage tank, the refrigerant after heat absorption is pressurized by the compressor, enters the condenser, releases heat to tap water, and the temperature of the tap water is increased by 5 DEG C, the refrigerant after condensation is reduced in pressure by the expansion valve, and then enters the evaporator, so as to circulate.

[0009] Preferably, the bathing water supply system comprises a scale inhibitor, a circulating heating water tank and a heat pump system water supply pump, the scale inhibitor is in internal communication with a water source, the circulating heating water tank is in internal communication with the scale inhibitor, a condenser and a circulating heating water pump, and the heat pump system water supply pump is in internal communication with the circulating heating water tank; tap water is filtered by the scale inhibitor and then enters the circulating heating water tank, the circulating heating water tank delivers water to the condenser for continuous heating, and the water is delivered back by the circulating heating water pump, and when the water temperature reaches a set value, the heat pump system water supply pump supplies water to the bathroom.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: the bathing sewage enters the high-efficiency filtering system for multiple filtration, the filtered sewage enters the high-efficiency heating system, tap water is delivered to the bathing water supply system for storage, and at the same time, the bathing water supply system continuously delivers tap water to the high-efficiency heating system for heat exchange with the filtered sewage, and when the water temperature of the tap water in the bathing water supply system reaches a set value, water can be supplied to the bathroom. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a structural schematic view of the utility model;

[0012] Fig. 2 It is a structural schematic view of the high-efficiency filtering system of the utility model;

[0013] Fig. 3 It is a structural schematic view of the high-efficiency heating system of the utility model;

[0014] Fig. 4 It is a structural schematic view of the bathing water supply system of the utility model.

[0015] Markings in the drawings: 01, high-efficiency filtering system; 11, first-stage primary filter; 12, drain pipe; 13, gate valve; 14, first-stage secondary filter; 15, bathing sewage pump; 16, secondary filter; 17, bathing sewage tank; 18, sewage well; 02, high-efficiency heating system; 21, heat source water pump; 22, evaporator; 23, condenser; 24, circulating heating water pump; 03, bathing water supply system; 31, scale inhibitor; 32, circulating heating water tank; 33, heat pump system water supply pump. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the related drawings. The utility model can be realized 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 utility model more thorough and comprehensive.

[0017] Embodiment 1

[0018] The utility model discloses a bathing sewage waste heat utilization device, including efficient filtration system 01, still including efficient heating system 02 and bathing water supply system 03, efficient heating system 02 installs on efficient filtration system 01 and carries out heat exchange with tap water and sewage, and bathing water supply system 03 installs on efficient heating system 02 and carries out heating to tap water, efficient filtration system 01 includes two groups of first -class primary filter 11, drain pipe 12, gate valve 13, first -class secondary filter 14, bathing sewage pump 15, secondary filter 16, bathing sewage tank 17 and sewage well 18, two groups of first -class primary filter 11 are communicated with bathing sewage respectively, and drain pipe 12 is communicated and installs on two groups of first -class primary filter 11, and gate valve 13 installs on drain pipe 12, and first -class secondary filter 14 is communicated with drain pipe 12 inside, and bathing sewage pump 15 is communicated with first -class secondary filter 14 inside, and secondary filter 16 is communicated with bathing sewage pump 15 inside, and bathing sewage tank 17 is communicated with secondary filter 16 inside, and bathing sewage tank 17's overflow pipe is communicated with drain pipe 12 inside, and the communicating point is located at the rear side of gate valve 13, and sewage well 18 is communicated with drain pipe 12 inside, efficient heating system 02 includes heat source water pump 21, evaporimeter 22, condenser 23 and circulating heating water pump 24, heat source water pump 21 is communicated with bathing sewage tank 17 inside, evaporimeter 22 is communicated with bathing sewage tank 17 and heat source water pump 21 inside, condenser 23 is communicated with evaporimeter 22 through heat exchange pipeline, is provided with compressor and expansion valve on heat exchange pipeline, and circulating heating water pump 24 is communicated with condenser 23 inside, when working, first, bathing sewage passes through two groups of first -class primary filter 11, and after filtering part of hair, enters drain pipe 12, closes gate valve 13, and sewage enters first -class secondary filter 14 and further filters hair, then sewage enters secondary filter 16 after pressurizing through bathing sewage pump 15, filters away silt, tiny dirt and other impurities in sewage, and finally enters bathing sewage tank 17, and the water amount in bathing sewage tank 17 continuously increases, when the water level rises to the position where overflow pipe is located, bathing sewage will return to drain pipe 12 in the rear side of gate valve 13 through overflow pipe, and is discharged to sewage well 18, finally enters domestic sewage treatment station, and the sewage in bathing sewage tank 17 is transported to evaporimeter 22 after pressurizing through heat source water pump 21, releases heat to refrigerant, and the sewage temperature reduces 5 DEG C and returns to bathing sewage tank 17, and the refrigerant after heat absorption enters condenser 23 after pressurizing through compressor, and releases heat to tap water, and the tap water temperature is lifted 5 DEG C, and the refrigerant condenses and enters expansion valve after pressure reduction and enters evaporimeter, and circulates like this.

[0019] Example 2

[0020] As Figs. 1 to 4As shown, the bathing sewage waste heat utilization device, on the basis of embodiment 1; the bathing water supply system 03 includes scale inhibitor 31, circulating heating water tank 32 and heat pump system water supply pump 33, scale inhibitor 31 and water source internal communication, circulating heating water tank 32 and scale inhibitor 31, condenser 23 and circulating heating water pump 24 internal communication, heat pump system water supply pump 33 and circulating heating water tank 32 internal communication;When it works, first, the bathing sewage passes through two groups of primary one filter 11, filters part of the hair into the drain pipe 12, closes the gate valve 13, the sewage enters the primary secondary filter 14 and further filters the hair, then the sewage is pressurized by the bathing sewage pump 15 and enters the secondary filter 16, filters out the impurities such as silt and small dirt in the sewage, and finally enters the bathing sewage tank 17, the water quantity in the bathing sewage tank 17 continuously increases, when the water level rises to the position of overflow pipe, the bathing sewage will return to the drain pipe 12 behind the gate valve 13 through the overflow pipe, and be discharged to the sewage well 18, finally enter the domestic sewage treatment station, the sewage in the bathing sewage tank 17 is pressurized by the heat source water pump 21 and delivered to the evaporator 22, releases heat to the refrigerant, the sewage temperature is reduced by 5 DEG C and returned to the bathing sewage tank 17, the tap water is filtered by the scale inhibitor 31 and enters the circulating heating water tank 32, the circulating heating water tank 32 delivers water to the condenser 23 and is continuously heated by the circulating heating water pump 24 and is delivered back, the heat-absorbed refrigerant is pressurized by the compressor and enters the condenser 23, releases heat to the tap water, and the temperature of the tap water is increased by 5 DEG C, the refrigerant is condensed and enters the expansion valve and is depressurized and then enters the evaporator, so the cycle is repeated, when the water temperature reaches the set value, the heat pump system water supply pump 33 supplies water to the bathroom.

[0021] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A bathing sewage waste heat utilization device, comprising a high-efficiency filtering system (01); characterized in that, The high-efficiency heating system (02) is installed on the high-efficiency filtering system (01) and exchanges heat between tap water and sewage, and the bathing water supply system (03) is installed on the high-efficiency heating system (02) and heats tap water. The high-efficiency filtering system (01) comprises two groups of first-stage primary filters (11), a drain pipe (12), a gate valve (13), a first-stage secondary filter (14), a bathing sewage pump (15), a secondary filter (16), a bathing sewage tank (17) and a sewage well (18), the two groups of first-stage primary filters (11) are respectively communicated with bathing sewage, the drain pipe (12) is communicated and installed on the two groups of first-stage primary filters (11), the gate valve (13) is installed on the drain pipe (12), the first-stage secondary filter (14) is communicated with the inside of the drain pipe (12), the bathing sewage pump (15) is communicated with the inside of the first-stage secondary filter (14), the secondary filter (16) is communicated with the inside of the bathing sewage pump (15), the bathing sewage tank (17) is communicated with the inside of the secondary filter (16), and the overflow pipe of the bathing sewage tank (17) is communicated with the inside of the drain pipe (12), the communication point is located at the rear side of the gate valve (13), and the sewage well (18) is communicated with the inside of the drain pipe (12).

2. The bathing wastewater heat utilization device according to claim 1, wherein, The high-efficiency heating system (02) comprises a heat source water pump (21), an evaporator (22), a condenser (23) and a circulating heating water pump (24), the heat source water pump (21) is communicated with the inside of the bathing sewage tank (17), the evaporator (22) is communicated with the inside of the bathing sewage tank (17) and the heat source water pump (21), the condenser (23) is communicated with the evaporator (22) through a heat exchange pipeline, a compressor and an expansion valve are arranged on the heat exchange pipeline, and the circulating heating water pump (24) is communicated with the inside of the condenser (23).

3. The bathing wastewater heat utilization device according to claim 2, wherein, The bathing water supply system (03) comprises a scale inhibitor (31), a circulating heating water tank (32) and a heat pump system water supply pump (33), the scale inhibitor (31) is communicated with the inside of a water source, the circulating heating water tank (32) is communicated with the inside of the scale inhibitor (31), the condenser (23) and the circulating heating water pump (24), and the heat pump system water supply pump (33) is communicated with the inside of the circulating heating water tank (32).

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