CN203203436U - Full-automatic sewage heat energy recovery device - Google Patents

Abstract

The utility model relates to a fully automatic sewage heat energy recovery device, which comprises a water pipe box and several water pipe groups. A number of water pipe groups are laid inside the water pipe box, and a clean water inlet and a clean water outlet are respectively set outside the water pipe boxes located at the left and right ends of the water pipe group. A sewage inlet is arranged outside the water pipe box below the clean water inlet, and a sewage outlet is arranged outside the water pipe box below the clean water outlet. An inlet water temperature sensor is fixedly installed on the inside of the sewage inlet, and an outlet water temperature sensor is fixedly installed on the inside of the sewage outlet. Sensor: a clean water pressure sensor is provided on the water pipe box on the adjacent side of the clean water outlet, and a sewage pressure sensor is provided on the water pipe box on the adjacent side of the sewage outlet. The beneficial effects of the utility model are: the heat exchanger device and the control box are integrated to ensure operating efficiency; the heat conversion efficiency of high-temperature sewage and the pressure in the heater can be clearly displayed and alarmed; the heat exchange efficiency can be ensured.

Description

A fully automatic sewage heat recovery device

technical field

The utility model relates to a heat energy recovery device, in particular to a fully automatic sewage heat energy recovery device suitable for various chemical fiber textile mills and paper mills.

Background technique

At present, there are often high-temperature sewage in chemical fiber textile factories that need heat energy recovery, but conventional plate or tube heat exchangers are generally used in recovery and cannot fully recover the heat energy of sewage. The plate heat exchanger is composed of a series of A new type of high-efficiency heat exchanger made of stacked metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various sheets, and heat is exchanged through half sheets; the plate heat exchanger is liquid-liquid, liquid- However, the main defects of using the above radiators are as follows: ①The temperature and flow of high-temperature sewage are not constant, so the heat recovery level of heat exchangers is usually relatively low; ②The import of high-temperature sewage The temperature and outlet temperature are displayed by traditional instruments instead of closed-loop control; ③The pressure in the heat exchanger is only protected by pressure relief valves and other protection measures, and there is no alarm function. Therefore, in view of the above aspects, it is necessary to make reasonable improvements to the prior art.

Utility model content

In view of the above defects, the utility model provides a convenient and reliable automatic sewage heat recovery device, which is beneficial to improve operating efficiency, has a pressure alarm design, and can ensure heat exchange efficiency, so as to solve many deficiencies in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A fully automatic sewage heat energy recovery device, including a water pipe box and several water pipe groups. Several water pipe groups are laid inside the water pipe box. A clean water inlet and a clean water outlet are respectively opened outside the water pipe box located at the left and right ends of the water pipe group, and are located below the clean water inlet. A sewage inlet is arranged outside the water pipe box, and a sewage outlet is arranged outside the water pipe box below the clean water outlet. An inlet water temperature sensor is fixedly installed on the inside of the sewage inlet, and an outlet water temperature sensor is fixedly installed on the inside of the sewage outlet;

At the same time, a clean water pressure sensor is provided on the water pipe box on the adjacent side of the clean water outlet, and a sewage pressure sensor is provided on the water pipe box on the adjacent side of the sewage outlet; wherein the clean water pressure sensor, sewage pressure sensor, outlet water temperature sensor, The inlet water temperature sensors are respectively connected with the external control box. An outer casing is arranged on the periphery of the water pipe group.

The beneficial effects of the fully automatic sewage heat recovery device described in the utility model are:

(1) The heat exchanger device and the control box are integrated to ensure the highest operating efficiency;

(2) The opening of the high-temperature sewage inlet valve can be adjusted in real time according to the optimal control of the inlet and outlet temperature, and the heat conversion efficiency of the high-temperature sewage can be clearly displayed on the touch screen of the control box. The pressure in the heat exchanger (including Sewage pressure and clean water pressure) can be displayed and alarmed;

(3) The control box can not only alarm the pressure, but also perform PID control on the temperature to ensure the heat exchange efficiency;

(4) The sewage inlet is mainly adjusted by the valve, which is convenient and reliable;

(5) It is suitable for chemical fiber factories or paper mills. High-temperature waste hot water can be sent into the device for heat exchange with cold water entering at the same time. After the exchange, the high-temperature waste water is reduced to normal temperature waste water and discharged to sewage treatment; the cold water heats up after exchange. The hot water is sent to the hot water insulation tank for buffering, or directly sent to the equipment as supplementary water, and the exchange efficiency can reach up to about 90%.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic structural view of a fully automatic sewage heat energy recovery device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the control box of the automatic sewage heat energy recovery device according to the embodiment of the utility model.

In the picture:

1. Water pipe box; 2. Clean water inlet; 3. Connecting components; 4. Outer shell; 5. Water pipe group; 6. Clean water outlet; 7. Clean water pressure sensor; 8. Sewage pressure sensor; 9. Outlet water temperature sensor; 10. Sewage outlet; 11. Import water temperature sensor; 12. Sewage inlet; 13. Control box.

Detailed ways

As shown in Figure 1-2, the fully automatic sewage heat energy recovery device described in the embodiment of the utility model includes a water pipe box 1, an outer shell 4, and several water pipe groups 5, and several water pipe groups 5 are laid inside the water pipe box 1, located at A clean water inlet 2 and a clean water outlet 6 are respectively provided outside the water pipe box 1 at the left and right ends of the water pipe group 5, wherein a sewage inlet 12 is arranged outside the water pipe box 1 below the clean water inlet 2, and the water pipe box below the clean water outlet 6 1. A sewage outlet 10 is arranged outside, and an inlet water temperature sensor 11 is fixedly installed on the inner side of the sewage inlet 12, and an outlet water temperature sensor 9 is fixedly installed on the inner side of the sewage outlet 10; at the same time, the water pipe located on the adjacent side of the clean water outlet 6 A clear water pressure sensor 7 is provided on the box 1, and a sewage pressure sensor 8 is provided on the water pipe box 1 adjacent to the sewage outlet 10; in addition, an outer casing 4 is arranged on the periphery of the water pipe group 5 and the outer casing 4 is connected to the water pipe box. 1 are locked through the connection assembly 3, wherein the clean water pressure sensor 7, the sewage pressure sensor 8, the outlet water temperature sensor 9, and the inlet water temperature sensor 11 are respectively connected to the external control box 13.

In the full-automatic sewage heat recovery device described in the above embodiments of the utility model, high-temperature sewage enters the tube bundle through the sewage inlet to fully exchange heat, and then flows out of the sewage outlet; normal temperature clean water enters the tube box through the clean water inlet to fully exchange heat with the sewage in the tube bundle , and finally become hot water flowing out of the clean water outlet to become usable hot water; when the pressure sensor exceeds the set pressure, it will automatically alarm, and for temperature control, temperature PID control is used to ensure the highest efficiency of sewage heat recovery.

The above embodiment is one of the more preferred specific implementations of the utility model, and ordinary changes and substitutions performed by those skilled in the art within the scope of the technical solution shall be included in the protection scope of the utility model.

Claims (2)

1. full-automatic sewage heat-energy recovering apparatus, comprise water pipe tank (1) and some water pipe groups (5), the some water pipe groups of water pipe tank (1) laid inside (5), a clear water entrance (2), a clear water output (6) are offered respectively in water pipe tank (1) outside that is positioned at the left and right two ends of water pipe group (5), it is characterized in that:

Be positioned at water pipe tank (a 1) sewage import of outer setting (12) of clear water entrance (2) below, be positioned at water pipe tank (a 1) outlet of sewer of outer setting (10) of clear water output (6) below, the inboard fixed installation of described sewage import (a 12) inlet water temperature sensor (11), an outlet of the inboard fixed installation of described outlet of sewer (10) cooling-water temperature sensor (9);

Simultaneously, be positioned on the water pipe tank (1) of the adjacent side of clear water output (6) and offer a clear water pressure sensor (7), be positioned on the water pipe tank (1) of the adjacent side of outlet of sewer (10) and offer a sewage pressure sensor (8);

Clear water pressure sensor (7) wherein, sewage pressure sensor (8), outlet cooling-water temperature sensor (9), inlet water temperature sensor (11) are connected with external control case (13) respectively.

2. full-automatic sewage heat-energy recovering apparatus according to claim 1, it is characterized in that: described water pipe group (5) periphery arranges shell body (4).