阅读说明：本技术 一种热交换器清洗系统 (Heat exchanger cleaning system ) 是由 唐俊松 于 2021-02-22 设计创作，主要内容包括：本发明提供了一种热交换器清洗系统,其直接连接至换热管路的两端接头进行清洗作业,使得清洗快捷高效、且使得生产进度影响小。清洗罐的内腔设置有进口管路组件、出口管路、回流管路、排出管路,所述进口管路组件包括有独立的蒸汽管路、清水管路、双氧水管路、去油灵管路,所述蒸汽管路、清水管路、双氧水管路、去油灵管路的出口分别连通至所述清洗罐的内腔,所述出口管路的输出端用于连接热交换器的换热管路的一端,所述回流管路的输入端连接有循环泵的出口,热交换器的换热管路的另一端通过接头连接所述循环泵的入口,所述清洗罐的内腔的底部连接有所述排出管路,所述排出管路上集成有阀体结构。(The invention provides a heat exchanger cleaning system which is directly connected to joints at two ends of a heat exchange pipeline for cleaning operation, so that the cleaning is quick and efficient, and the influence on the production progress is small. The inner chamber of wasing the jar is provided with import pipeline subassembly, outlet pipe way, return line, discharge line, import pipeline subassembly is including independent steam line, clear water pipeline, hydrogen peroxide pipe way, the smart pipeline of deoiling, the export of steam line, clear water pipeline, hydrogen peroxide pipe way, the smart pipeline of deoiling communicate respectively to wash the inner chamber of jar, the output of outlet pipe way is used for connecting heat exchanger's heat transfer pipeline's one end, the input of return line is connected with the export of circulating pump, and heat exchanger's heat transfer pipeline's the other end passes through the articulate the entry of circulating pump, the bottom of the inner chamber of wasing the jar is connected with the discharge line, integrated valve body structure on the discharge line.)

1. A heat exchanger cleaning system, characterized by: the device comprises a cleaning tank, wherein an inlet pipeline assembly, an outlet pipeline, a return pipeline and a discharge pipeline are arranged in an inner cavity of the cleaning tank, the inlet pipeline assembly comprises an independent steam pipeline, a clean water pipeline, a hydrogen peroxide pipeline and a degreasing pipeline, outlets of the steam pipeline, the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline are respectively communicated with the inner cavity of the cleaning tank, an output end of the outlet pipeline is used for connecting one end of a heat exchange pipeline of a heat exchanger, an input end of the return pipeline is connected with an outlet of a circulating pump, the other end of the heat exchange pipeline of the heat exchanger is connected with an inlet of the circulating pump through a joint, the bottom of the inner cavity of the cleaning tank is connected with the discharge pipeline, a valve body structure is integrated on the discharge pipeline, and valve body structures are respectively arranged at inlet positions of the steam pipeline, the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline, the inner cavity of the cleaning tank is also connected with a liquid level meter.

2. A heat exchanger cleaning system as claimed in claim 1, wherein: the liquid level meter is characterized by further comprising a control module, the control module is externally arranged on the cleaning tank, the input end and the output end of the control module are integrated on the touch screen, and the control module is electrically connected with each corresponding valve body structure and the liquid level meter.

3. A heat exchanger cleaning system as claimed in claim 2, wherein: the inner chamber of wasing the jar still is provided with the PH and detects the structure, the output that the PH detected the structure is connected control module.

4. A heat exchanger cleaning system as claimed in claim 2, wherein: the inner cavity of the cleaning tank is also provided with a temperature sensor, and the output end of the temperature sensor is connected with the control module.

5. A heat exchanger cleaning system as claimed in claim 1, wherein: the valve body structure is a manual valve and a pneumatic valve which are sequentially arranged in series along the material flow direction, each pneumatic valve is respectively connected to the control module, the manual valve is used for supplementary shutdown when the pneumatic valve is failed, and the manual valve is in a passage state under the normal state.

6. A heat exchanger cleaning system as claimed in claim 2, wherein: the clear water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline are respectively provided with a flowmeter, and each flowmeter is respectively and independently connected to the control module.

7. A heat exchanger cleaning system as claimed in claim 1, wherein: the steam pipeline is also provided with a one-way valve, steam of the steam pipeline flows into the inner cavity through the one-way valve, and substances in the inner cavity cannot flow out through the one-way valve.

8. A heat exchanger cleaning system as claimed in claim 1, wherein: the output end of the outlet pipeline is positioned at the upper end of the heat exchange pipeline and is connected with the inlet of the circulating pump, and the lower end of the heat exchange pipeline is connected with the inlet of the circulating pump.

9. A cleaning process of a heat exchanger is characterized in that media in a heat exchange pipeline are emptied, the concentration of hydrogen peroxide and produciton of cleaning liquid used for cleaning the heat exchange pipeline is set, and then the following steps are carried out:

a. under the closing state of a circulating pump, a corresponding medium with a set volume is injected into an inner cavity of a cleaning tank through a clean water pipeline, a hydrogen peroxide pipeline and a degreasing pipeline, so that the liquid level of the inner cavity reaches a set position, then the clean water pipeline, the hydrogen peroxide pipeline and the pneumatic valves corresponding to the degreasing pipeline are respectively closed, a steam pipeline forms a passage, cleaning liquid in the inner cavity is heated to a set temperature T and is kept at the set temperature T, the circulating pump is started and the pneumatic valves corresponding to a liquid outlet pipeline are closed, the cleaning liquid is cleaned along a closed passage of the inner cavity, the outlet pipeline, a heat exchange pipeline, the circulating pump and a backflow pipeline for a set time A, then the pneumatic valves on the steam pipeline are closed, the circulating pump is closed, a drain valve is automatically opened, and drainage is started;

b. repeating the process a, and circularly cleaning once again;

c. the PH detection structure monitors the PH value of the cleaning liquid in the inner cavity in real time, and if the PH value does not reach the specified value, the process a is repeated and the cleaning is carried out again;

d. if the pH value reaches a specified value, the pneumatic valve of the clean water pipeline is automatically opened, water starts to enter, and the pneumatic valve of the clean water pipeline is automatically closed after the liquid level of the water enters a specified position; and (4) starting the circulating pump automatically, and after the circulating pump runs for a set time B, automatically closing the circulating pump, automatically opening the drain valve and finishing cleaning.

10. A process for cleaning a heat exchanger as claimed in claim 9, wherein: the value of the time A is 2.5 to 3.5 hours, and the value of the time B is 20 to 40 minutes; the value of the temperature T is 90-95 ℃; the set value of the PH value is 6.5-7.5.

Technical Field

The invention relates to the technical field of cleaning of heat exchangers, in particular to a cleaning system of a heat exchanger.

Background

The heat exchanger is used for making heat from hot-fluid transfer to cold fluid to satisfy the device of the technological requirement of regulation, when in actual use, working medium need be used in heat exchanger's heat transfer, and working medium can produce impurity in the pipeline under long-term running state, and then makes heat exchange efficiency can receive the influence, in order to promote heat exchange efficiency, so need wash heat exchanger. The existing cleaning needs to disassemble the heat exchange pipeline and then externally wash the heat exchange pipeline through equipment, so that the whole operation process is complicated, and the heat exchange pipeline after subsequent cleaning needs to be assembled again, so that the shutdown time of the heat exchanger is long, and the whole production progress is delayed.

Disclosure of Invention

In order to solve the problems, the invention provides a heat exchanger cleaning system which is directly connected to joints at two ends of a heat exchange pipeline for cleaning operation, so that the cleaning is quick and efficient, and the influence on the production progress is small.

A heat exchanger cleaning system, characterized by: the device comprises a cleaning tank, wherein an inlet pipeline assembly, an outlet pipeline, a return pipeline and a discharge pipeline are arranged in an inner cavity of the cleaning tank, the inlet pipeline assembly comprises an independent steam pipeline, a clean water pipeline, a hydrogen peroxide pipeline and a degreasing pipeline, outlets of the steam pipeline, the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline are respectively communicated with the inner cavity of the cleaning tank, an output end of the outlet pipeline is used for connecting one end of a heat exchange pipeline of a heat exchanger, an input end of the return pipeline is connected with an outlet of a circulating pump, the other end of the heat exchange pipeline of the heat exchanger is connected with an inlet of the circulating pump through a joint, the bottom of the inner cavity of the cleaning tank is connected with the discharge pipeline, a valve body structure is integrated on the discharge pipeline, and valve body structures are respectively arranged at inlet positions of the steam pipeline, the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline, the inner cavity of the cleaning tank is also connected with a liquid level meter.

It is further characterized in that:

the liquid level meter is characterized by also comprising a control module, wherein the control module is externally arranged on the cleaning tank, the input end and the output end of the control module are integrated on the touch screen, and the control module is electrically connected with each corresponding valve body structure and the liquid level meter;

the inner cavity of the cleaning tank is also provided with a PH detection structure, and the output end of the PH detection structure is connected with the control module;

the inner cavity of the cleaning tank is also provided with a temperature sensor, and the output end of the temperature sensor is connected with the control module;

the valve body structure comprises a manual valve and a pneumatic valve which are sequentially arranged in series along the material flow direction, each pneumatic valve is respectively connected to the control module, the manual valve is used for supplementary shutdown when the pneumatic valve fails, and the manual valve is in a passage state under a normal state;

the clear water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline are respectively provided with a flowmeter, and each flowmeter is respectively and independently connected to the control module to ensure the accurate control of medium inflow;

the pneumatic valve on the steam pipeline is a steam valve, the pneumatic valve on the clean water pipeline is a water valve, the pneumatic valve on the hydrogen peroxide pipeline is a hydrogen peroxide valve, and the pneumatic valve on the discharge pipeline is a discharge valve;

the steam pipeline is also provided with a one-way valve, steam in the steam pipeline flows into the inner cavity through the one-way valve, and substances in the inner cavity cannot flow out through the one-way valve;

the output end of the outlet pipeline is positioned at the upper end of the heat exchange pipeline and is connected with the inlet of the circulating pump, so that the cleaning liquid quickly impacts and cleans the inner wall of the heat exchange pipeline from top to bottom, and impurities quickly enter the inner cavity of the cleaning tank through gravitational potential energy and the adsorption of the circulating pump;

and a filter screen is arranged at the position of the outlet pipeline connected with the inner cavity and used for preventing impurity particles from entering the heat exchange pipeline again.

A cleaning process of a heat exchanger is characterized in that media in a heat exchange pipeline are emptied, the concentration of hydrogen peroxide and produciton of cleaning liquid used for cleaning the heat exchange pipeline is set, and then the following steps are carried out:

a. under the closing state of a circulating pump, a corresponding medium with a set volume is injected into an inner cavity of a cleaning tank through a clean water pipeline, a hydrogen peroxide pipeline and a degreasing pipeline, so that the liquid level of the inner cavity reaches a set position, then the clean water pipeline, the hydrogen peroxide pipeline and the pneumatic valves corresponding to the degreasing pipeline are respectively closed, a steam pipeline forms a passage, cleaning liquid in the inner cavity is heated to a set temperature T and is kept at the set temperature T, the circulating pump is started and the pneumatic valves corresponding to a liquid outlet pipeline are closed, the cleaning liquid is cleaned along a closed passage of the inner cavity, the outlet pipeline, a heat exchange pipeline, the circulating pump and a backflow pipeline for a set time A, then the pneumatic valves on the steam pipeline are closed, the circulating pump is closed, a drain valve is automatically opened, and drainage is started;

b. repeating the process a, and circularly cleaning once again;

c. the PH detection structure monitors the PH value of the cleaning liquid in the inner cavity in real time, and if the PH value does not reach the specified value, the process a is repeated and the cleaning is carried out again;

d. if the pH value reaches a specified value, the pneumatic valve of the clean water pipeline is automatically opened, water starts to enter, and the pneumatic valve of the clean water pipeline is automatically closed after the liquid level of the water enters a specified position; and (4) starting the circulating pump automatically, and after the circulating pump runs for a set time B, automatically closing the circulating pump, automatically opening the drain valve and finishing cleaning.

It is further characterized in that:

the value of the time A is 2.5 to 3.5 hours, and the value of the time B is 20 to 40 minutes;

the value of the temperature T is 90-95 ℃;

the set value of the PH value is 6.5-7.5.

After the cleaning device is adopted, the output end of the outlet pipeline is used for being connected with one end of a heat exchange pipeline of the heat exchanger, the input end of the return pipeline is connected with the outlet of the circulating pump, the other end of the heat exchange pipeline of the heat exchanger is connected with the inlet of the circulating pump through a connector, the outlet pipeline of the circulating pump and the pipeline of the circulating pump are respectively connected with connectors at two ends of the heat exchange pipeline, corresponding cleaning liquid is formed through the matching of the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline to carry out cleaning operation, and the cleaning liquid is heated to a proper cleaning temperature through steam, so that the cleaning is fast and efficient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

the names corresponding to the sequence numbers in the figure are as follows:

the device comprises a cleaning tank 1, an inner cavity 101, an outlet pipeline 2, a return pipeline 3, a discharge pipeline 4, a steam pipeline 5, a clean water pipeline 6, a hydrogen peroxide pipeline 7, a degreasing pipeline 8, a heat exchanger 9, a circulating pump 10, a liquid level meter 11, a control module 12, a touch screen 13, a PH detection structure 14, a temperature sensor 15, a manual valve 16, a steam valve 17, a water valve 18, a hydrogen peroxide valve 19, a degreasing valve 20, a discharge valve 21, a one-way valve 22, a filter screen 23 and a flowmeter 24.

Detailed Description

A heat exchanger cleaning system, see fig. 1: the cleaning device comprises a cleaning tank 1, an inlet pipeline assembly, an outlet pipeline 2, a return pipeline 3 and a discharge pipeline 4 are arranged in an inner cavity of the cleaning tank 1, the inlet pipeline assembly comprises an independent steam pipeline 5, a clean water pipeline 6, a hydrogen peroxide pipeline 7 and a degreasing pipeline 8, outlets of the steam pipeline 5, the clean water pipeline 6, the hydrogen peroxide pipeline 7 and the degreasing pipeline 8 are respectively communicated with an inner cavity 101 of the cleaning tank 1, an output end of the outlet pipeline 2 is used for connecting one end of a heat exchange pipeline of a heat exchanger 9, an input end of the return pipeline 3 is connected with an outlet of a circulating pump 10, the other end of the heat exchange pipeline of the heat exchanger 9 is connected with an inlet of the circulating pump 10 through a joint, the bottom of the inner cavity 101 of the cleaning tank 1 is connected with the discharge pipeline 4, a valve body structure is integrated on the discharge pipeline 4, and valve body structures are respectively arranged at inlet positions of the steam pipeline 5, the clean water, the inner cavity 101 of the cleaning tank 1 is also connected with a liquid level meter 11.

The cleaning device also comprises a control module 12, wherein the control module 12 is externally arranged on the cleaning tank 1, the input and output ends of the control module 12 are integrated on a touch screen 13, and the control module 12 is electrically connected with each corresponding valve body structure and the liquid level meter 11;

the inner cavity 101 of the cleaning tank 1 is also provided with a PH detection structure 14, and the output end of the PH detection structure 14 is connected with the control module 12;

the inner cavity 101 of the cleaning tank 1 is also provided with a temperature sensor 15, and the output end of the temperature sensor 15 is connected with the control module 12;

the clear water pipeline 6, the hydrogen peroxide pipeline 7 and the degreasing pipeline 8 are respectively provided with a flowmeter 24, and each flowmeter 24 is respectively and independently connected to the control module 12, so that the accurate control of medium inflow is ensured;

the valve body structure is a manual valve 16 and a pneumatic valve which are sequentially arranged in series along the material flow direction, each pneumatic valve is respectively connected to the control module 12, the manual valve 16 is used for supplementary shutdown when the pneumatic valve is failed, and the manual valve 16 is in a passage state under the normal state;

the pneumatic valve on the steam pipeline 5 is a steam valve 17, the pneumatic valve on the clear water pipeline 6 is a water valve 18, the pneumatic valve on the hydrogen peroxide pipeline 7 is a hydrogen peroxide valve 19, the pneumatic valve on the hydrogen peroxide pipeline 8 is a hydrogen peroxide valve 20, and the pneumatic valve on the discharge pipeline 4 is a discharge valve 21;

the steam pipeline 5 is also provided with a one-way valve 22, the steam in the steam pipeline 5 flows into the inner cavity 101 through the one-way valve 22, and the substances in the inner cavity 101 cannot flow out through the one-way valve 22;

the output end of the outlet pipeline 2 is positioned at the upper end of a heat exchange pipeline (positioned in the heat exchanger 9 and shielded) and is connected, and the lower end of the heat exchange pipeline is connected with the inlet of a circulating pump 10, so that cleaning liquid quickly impacts the inner wall of the heat exchange pipeline from top to bottom and impurities quickly enter the inner cavity 101 of the cleaning tank 1 through gravitational potential energy and the adsorption of the circulating pump;

a filter screen 23 is arranged at the position of the outlet pipeline 2 connected with the inner cavity 101 and used for preventing impurity particles from entering the heat exchange pipeline again.

A cleaning process of a heat exchanger is characterized in that media in a heat exchange pipeline are emptied, the concentration of hydrogen peroxide and degreasing agent of cleaning liquid for cleaning the heat exchange pipeline is set, and then the following steps are carried out:

a. under the closing state of a circulating pump, a corresponding medium with a set volume is injected into an inner cavity of a cleaning tank through a clean water pipeline, a hydrogen peroxide pipeline and a degreasing pipeline, so that the liquid level of the inner cavity reaches a set position, then the clean water pipeline, the hydrogen peroxide pipeline and the pneumatic valves corresponding to the degreasing pipeline are respectively closed, a steam pipeline forms a passage, cleaning liquid in the inner cavity is heated to a set temperature T and is kept at the set temperature T, the circulating pump is started and the pneumatic valves corresponding to a liquid outlet pipeline are closed, the cleaning liquid is cleaned along a closed passage of the inner cavity, the outlet pipeline, a heat exchange pipeline, the circulating pump and a backflow pipeline for a set time A, then the pneumatic valves on the steam pipeline are closed, the circulating pump is closed, a drain valve is automatically opened, and drainage is started;

b. repeating the process a, and circularly cleaning once again;

c. the PH detection structure monitors the PH value of the cleaning liquid in the inner cavity in real time, and if the PH value does not reach the specified value, the process a is repeated and the cleaning is carried out again;

d. if the pH value reaches a specified value, the pneumatic valve of the clean water pipeline is automatically opened, water starts to enter, and the pneumatic valve of the clean water pipeline is automatically closed after the liquid level of the water enters a specified position; and (4) starting the circulating pump automatically, and after the circulating pump runs for a set time B, automatically closing the circulating pump, automatically opening the drain valve and finishing cleaning.

The value of the time A is 2.5 to 3.5 hours, and the value of the time B is 20 to 40 minutes;

the value of the temperature T is 90-95 ℃;

the pH value is set to 6.5 to 7.5.

When the circulating pump is in a closed state, injecting 20L hydrogen peroxide into the inner cavity of the cleaning tank through the hydrogen peroxide pipeline, injecting 2L degreasing agent into the inner cavity of the cleaning tank through the degreasing agent pipeline, injecting clear water into the inner cavity of the cleaning tank through the clear water pipeline to enable the liquid level of the inner cavity to reach a set position, then respectively closing the pneumatic valves corresponding to the clean water pipeline, the hydrogen peroxide pipeline and the degreasing pipeline, forming a passage through the steam pipeline, heating the cleaning liquid in the inner cavity to the set temperature of 95 ℃, keeping the set temperature, starting the circulating pump, closing the pneumatic valves corresponding to the liquid outlet pipeline, enabling the cleaning liquid to clean and run for the set time A along the closed channels of the inner cavity, the outlet pipeline, the heat exchange pipeline, the circulating pump and the return pipeline through the circulating pump, then closing the pneumatic valves on the steam pipeline, closing the circulating pump, automatically opening the drain valve, and starting to drain water;

b. repeating the process a, and circularly cleaning once again;

c. the PH detection structure monitors the PH value of the cleaning liquid in the inner cavity in real time, and if the PH value does not reach the specified value of 6.5-7.5, the process a is repeated and the cleaning is carried out again;

d. if the pH value reaches the specified value of 6.5-7.5, automatically opening a pneumatic valve of the clean water pipeline, starting water inflow, and automatically closing the pneumatic valve of the clean water pipeline after the liquid level of the inflow reaches the specified position; and (4) starting the circulating pump automatically, automatically closing the circulating pump after the set running time is 30 minutes, automatically opening the drain valve, and finishing cleaning.

The output of outlet pipeline is used for connecting heat exchanger's heat transfer pipeline's one end, return line's input is connected with the export of circulating pump, heat exchanger's heat transfer pipeline's the other end passes through its outlet pipeline of the entry of articulate circulating pump and the pipeline of circulating pump and is connected to heat transfer pipeline's both ends joint respectively, through the clear water pipeline, the hydrogen peroxide pipe way, the washing liquid that the cooperation of the smart pipeline of deoiling formed the correspondence washs the operation, and heat the washing liquid to suitable washing temperature through steam, make and wash swift high-efficient, and make the production progress influence little.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.