CN205228265U - Indirect heating equipment is automatic reverse cleaning system regularly - Google Patents

Abstract

The utility model discloses a timing automatic reverse cleaning system for heat exchange equipment, which includes a cold and heat source, a primary side delivery pump, a primary side delivery pipeline, heat exchange equipment, a secondary side delivery pipeline, an electric valve 1, a water supply device, and a user terminal , external water tank, electric valve two, electric valve three, secondary side conveying pump, electric valve four, electric valve five, drain valve, drain; Thermal equipment connection; the secondary side outlet of the heat exchange equipment is connected to the user end through the secondary side conveying pipeline and the electric valve 1, and the outlet of the user end is connected to the secondary side of the heat exchange equipment through the electric valve 3, the secondary side conveying pump and the electric valve 4 Side inlet connection; the external water tank is set at the highest point of the system building, and is connected to the outlet of the electric valve three through the water supply pipeline and the electric valve two; between the secondary side conveying pump and the electric valve four, there is a conveying pipeline, The other end of the delivery pipeline is connected to the outlet of the secondary side of the heat exchange equipment, and an electric valve five is arranged in the delivery pipeline; a drain valve and a drainage ditch are arranged at the entrance of the secondary side of the heat exchange equipment. The system consists of 2 subsystems: (1) The primary side and secondary side normally operate the system to provide services for the user; (2) Clean the heat exchange equipment system to prevent fouling of the heat exchange equipment and solve problems such as blockage, At the same time avoid manual cleaning, reduce labor costs.

Description

A timing automatic reverse cleaning system for heat exchange equipment

technical field

The utility model belongs to the technical field of heat exchange equipment cleaning, in particular to a timing automatic reverse cleaning system for heat exchange equipment.

Background technique

Heat exchange equipment is widely used in HVAC and places where there is heat exchange. A common system containing heat exchange equipment is shown in Figure 1, including cold and heat sources, primary side delivery pumps, primary side delivery pipes, heat exchange equipment, secondary Secondary side delivery pipelines, water replenishment devices, user terminals, secondary side delivery pumps, etc.; the above installation methods are easily affected by on-site water quality conditions, maintenance quality and frequency. After the system has been running for a long time, the heat exchange equipment is prone to blockage and fouling, resulting in low heat exchange efficiency and excessive pressure drop. The traditional cleaning method is manual cleaning, which is time-consuming, laborious and expensive.

Utility model content

The purpose of the utility model is to provide a system that can solve the above problems, is suitable for existing or new systems, and can realize automatic cleaning of various heat exchange equipment at regular intervals.

The technical scheme of the utility model is as follows: a timing automatic reverse cleaning system for heat exchange equipment, including cold and heat sources, primary side delivery pumps, primary side delivery pipelines, heat exchange equipment, secondary side delivery pipelines, electric valve 1, water supply Device, user terminal, external water tank, electric valve 2, electric valve 3, secondary side delivery pump, electric valve 4, electric valve 5, drain valve, drainage ditch;

The cold and heat sources are connected to the heat exchange equipment through the primary side delivery pump and the primary side delivery pipeline;

The outlet of the secondary side of the heat exchange equipment is connected to the user end through the secondary side conveying pipeline and the electric valve one, and the outlet of the user end is connected to the secondary side inlet of the heat exchange equipment through the electric valve three, the secondary side delivery pump and the electric valve four;

The external water tank is set at the highest point of the system building, and is connected to the outlet of the electric valve three through the water supply pipeline and the electric valve two;

Between the secondary side delivery pump and the electric valve four, there is a delivery pipeline, the other end of the delivery pipeline is connected to the secondary side outlet of the heat exchange equipment, and the electric valve five is arranged in the delivery pipeline;

A drain valve and a drainage ditch are provided at the entrance of the secondary side of the heat exchange equipment.

Further, the first electric valve, the second electric valve, the third electric valve, the fourth electric valve, the fifth electric valve, and the drain valve are all opened or closed at regular intervals through an electrical control cabinet.

The system works as follows:

When the heat exchange equipment is in normal operation, electric valve 1, electric valve 3, and electric valve 4 remain open; while electric valve 2, electric valve 5, and drain valve are closed;

When the heat exchange equipment needs to be cleaned, electric valve 1, electric valve 3, and electric valve 4 are closed regularly (5~30s) through the electric control cabinet, while electric valve 2, electric valve 5, and drain valve are simultaneously opened through the electric control cabinet ( 5~30s), the water stored in the external water tank flows into the heat exchange equipment in reverse through the electric valve 2, the secondary side delivery pump, the electric valve 5, and a section of the secondary side delivery pipeline, and the dirt and sundries in the heat exchange equipment are removed Flush out in the reverse direction, and then flow into the drainage ditch through a section of the secondary side delivery pipeline and the drain valve. Since the secondary side pipeline is already full of fluid, and the secondary side delivery pump will do work on the fluid during operation, which can increase the pressure of the pipeline and increase the fluid flow rate, so it is only necessary to close the electric valve 1, electric valve 3, and electric valve for a short period of time during cleaning. Valve 4, it takes 5 to 30 seconds to open the electric valve 2, electric valve 5, and drain valve at the same time, and the heat exchange equipment can be cleaned in reverse for 5 to 30 seconds. After cleaning, open the electric valve 1 through the control cabinet , electric valve three, electric valve four, and close electric valve two, electric valve five, and drain valve at the same time.

The beneficial effects of the utility model are as follows:

(1) Wide application range, easy implementation and operation. The invention is applicable to a variety of heat exchange equipment and has a wide range of applications. Only 6 valves, 1 water tank and supporting pipe network are added. The valves are all controlled by the electric control cabinet at regular intervals, which is easy to implement, easy to operate, and has obvious cleaning effects.

(2) The structure is simple and does not affect the normal operation of the system. The new equipment of the invention is integrated with the common system, the structure is relatively simple, the regular cleaning time is 5-30s, the cleaning time is short, and the normal operation of the system will not be affected.

Description of drawings

Fig. 1 is the structural representation of existing system;

Fig. 2 is a structural schematic diagram of the timing automatic reverse cleaning system of the heat exchange equipment of the present invention.

Description of reference numerals: cold and heat source 1, primary side delivery pump 2, primary side delivery pipeline 3, heat exchange equipment 4, secondary side delivery pipeline 5, electric valve 1 6, water supply device 7, user terminal 8, external water tank 9 , electric valve two 10, electric valve three 11, secondary side delivery pump 12, electric valve four 13, electric valve five 14, drain valve 15, drainage ditch 16.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings. As shown in Figure 2, a timing automatic reverse cleaning system for heat exchange equipment includes a cold and heat source 1, a primary side delivery pump 2, a primary side delivery pipeline 3, and heat exchange equipment 4. Secondary side delivery pipeline 5, electric valve one 6, water supply device 7, user terminal 8, external water tank 9, electric valve two 10, electric valve three 11, secondary side delivery pump 12, electric valve four 13, electric valve 5. 14. Drain valve 15, drainage ditch 16; the cold and heat source 1 is connected to the heat exchange equipment 4 through the primary side delivery pump 2 and the primary side delivery pipeline 3; the secondary side outlet of the heat exchange equipment 4 is transported through the secondary side The pipeline 5 and the electric valve one 6 are connected to the user end 8, and the outlet of the user end 8 is connected to the secondary side inlet of the heat exchange equipment 4 through the electric valve three 11, the secondary side delivery pump 12 and the electric valve four 13; The water tank 9 is set at the highest point of the system building, and is connected to the outlet of the electric valve three 11 through the water supply pipeline and the electric valve two 10; between the secondary side conveying pump 12 and the electric valve four 13, there is a conveying pipeline, and the conveying pipeline The other end is connected to the outlet of the secondary side of the heat exchange equipment 4, and an electric valve 5 14 is arranged in the delivery pipeline; a drain valve 15 and a drainage ditch 16 are arranged at the entrance of the secondary side of the heat exchange equipment 4; the electric valve 1 6 , electric valve two 10, electric valve three 11, electric valve four 13, electric valve five 14, and drain valve 15 are all opened or closed at regular intervals through an electric control cabinet;

Arrows in Figure 2 represent the direction of fluid flow. The heat exchange equipment timing automatic reverse cleaning system includes 2 subsystems: (1) the normal operation system of the primary side and the secondary side, providing services for the user end; (2) cleaning the heat exchange equipment system, the purpose is to prevent the heat exchange equipment from Scaling, solving problems such as clogging, while avoiding manual cleaning, reducing labor costs. During the normal operation of the primary side and secondary side system, electric valve one 6, electric valve three 11, and electric valve four 13 are opened, while electric valve two 10, electric valve five 14, and drain valve 15 are closed. When the heat exchange equipment needs to be cleaned, the working principle of the cleaning system is: electric valve one 6, electric valve three 11, electric valve four 13 are closed at regular intervals (5~30s) through the electric control cabinet, while electric valve two 10, electric valve five 14. The drain valve 15 is opened at the same time through the electrical control cabinet (5~30s), and the water stored in the external water tank 9 passes through the electric valve 10, the secondary side delivery pump 12, the electric valve 14, and a section of the secondary side delivery pipeline 5 in reverse direction. It flows into the heat exchange equipment 4, and the dirt and sundries in the heat exchange equipment 4 are flushed out in reverse, and then flows into the drainage ditch through a section of the delivery pipeline 5 and the drain valve 14 on the secondary side. Since the secondary side pipeline is already full of fluid, and the secondary side delivery pump 12 will do work on the fluid during operation, which can increase the pressure of the pipeline and increase the fluid flow rate, so it is only necessary to close the electric valve 6, electric valve 11, Electric valve 13, it takes 5 to 30 seconds to open the electric valve 10, electric valve 14, and drain valve 15 at the same time, and the heat exchange equipment can be reversely cleaned in 5 to 30 seconds. After cleaning, turn on the electric valve through the control cabinet. Valve 6, electric valve 11, electric valve 13, and electric valve 10, electric valve 14, and drain valve 15 are closed at the same time, and the primary side and secondary side systems enter the normal operation state to provide services for the user end.

The above is an exemplary description of the utility model. Obviously, the realization of the utility model is not limited by the above-mentioned method, as long as various improvements in the technical solution of the utility model are adopted, or the concept of the utility model is implemented without improvement. And technical schemes that are directly applied to other occasions are all within the protection scope of the present utility model.

Claims (2)

1. the timing automatic reverse cleaning system of heat transmission equipment, it is characterized in that, comprise Cooling and Heat Source, primary side delivery pump, primary side conveyance conduit, heat transmission equipment, secondary side conveyance conduit, motor-driven valve one, water replanishing device, user side, external water tank, motor-driven valve two, motor-driven valve three, secondary side delivery pump, motor-driven valve four, motor-driven valve five, drain valve, gutter; Described Cooling and Heat Source is connected with heat transmission equipment with primary side conveyance conduit by primary side delivery pump; The outlet of heat transmission equipment secondary side is connected with user side by secondary side conveyance conduit, motor-driven valve one, and the outlet of user side is connected with the secondary side entrance of heat transmission equipment by motor-driven valve three, secondary side delivery pump and motor-driven valve four; Described external water tank is arranged at systematic building thing peak, is connected to the exit of motor-driven valve three by water supply line and motor-driven valve two; Between secondary side delivery pump and motor-driven valve four, be provided with conveyance conduit, the other end of conveyance conduit is connected to the outlet of heat transmission equipment secondary side, is provided with motor-driven valve five in conveyance conduit; Drain valve and gutter is provided with in heat transmission equipment secondary side porch.

2. the timing automatic reverse cleaning system of a kind of heat transmission equipment according to claim 1, it is characterized in that, motor-driven valve one, motor-driven valve two, motor-driven valve three, motor-driven valve four, motor-driven valve five, drain valve all realize time opening or closedown by an electrical control cabinet.