CN209877067U - Waste heat utilization integrated device - Google Patents
Waste heat utilization integrated device Download PDFInfo
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- CN209877067U CN209877067U CN201822248344.0U CN201822248344U CN209877067U CN 209877067 U CN209877067 U CN 209877067U CN 201822248344 U CN201822248344 U CN 201822248344U CN 209877067 U CN209877067 U CN 209877067U
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Abstract
The utility model relates to a waste heat utilization integrated device. The utility model comprises a steam-water heat exchanger and a cold water supply main pipe; a cold water inlet and a hot water outlet of the steam-water heat exchanger are communicated to form a heat supply circulating pipeline, a circulating pump and a water tank are arranged on the heat supply circulating pipeline, and the water tank is positioned at the inlet end of the circulating pump; the cold water supply main pipe is communicated with the outlet end of the circulating pump when the circulating pump is closed, and the cold water supply main pipe is communicated with the water tank when the circulating pump runs; the steam-water heat exchanger is provided with a liquid level meter for measuring the liquid level of steam condensate, a condensate pipeline connected with a condensate outlet of the steam-water heat exchanger is provided with a liquid discharge valve, and the liquid discharge valve is selectively opened or closed according to the measured value of the liquid level meter so as to realize that the liquid level of the condensate in the shell pass of the steam-water heat exchanger is higher than the condensate outlet of the steam-water heat exchanger. The device has greatly improved user's water experience and waste heat utilization is effectual.
Description
Technical Field
The utility model belongs to the technical field of rich low pressure steam comprehensive utilization among the industrial production, specifically relate to a waste heat utilization integrated device.
Background
Low-pressure steam is often left in the process of industrial production enterprises. The low-pressure steam is introduced into the hot water heating device through reasonable design, and is supplied to the dining room, the bathing room and the heating system for use, so that the surplus heat can be effectively utilized, and the resource waste and the energy loss are reduced. Because hot water users such as bathhouses and the like often use hot water discontinuously, a conventional steam heat exchange device generally needs to be provided with a hot water storage tank with a larger capacity, so that the water demand of the users can be better met. However, in the actual operation process, when the user does not use hot water, the far-end hot water pipe network can be gradually cooled, and the worse the heat preservation is, the faster the cooling is. When a user suddenly uses water, the water temperature is gradually increased to a normal value after a certain amount of water is discharged, and the user experience is poor.
In addition, a steam trap is usually installed on a condensate pipeline of the steam heat exchange device, and the steam trap plays a role in separating steam from condensate water so as to achieve the effects of energy conservation and consumption reduction. However, the steam trap may be clogged by impurities such as iron chips contained in the steam pipeline, and the steam passing through the steam trap may cause damage to the internal structure of the steam trap due to too large amount of steam and long-term operation. The steam trap has poor drainage effect, and can influence the heat exchange effect of the steam-water heat exchanger, so that the temperature of a tube pass medium of the steam-water heat exchanger can not reach the process index temperature, and the operation of a system is influenced. Meanwhile, the poor effect of the steam trap can cause a large amount of steam leakage, so that economic losses are caused for enterprises.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a waste heat utilization integrated device. The device can guarantee that the temperature of water in the long-range pipe network is invariable, has greatly improved user's water and has experienced, and steam heat transfer device's drainage and heat transfer are effectual in the device in addition.
In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:
an integrated waste heat utilization device comprises a steam-water heat exchanger and a cold water supply main pipe;
a cold water inlet and a hot water outlet of the steam-water heat exchanger are communicated to form a heat supply circulating pipeline, a circulating pump and a water tank are mounted on the heat supply circulating pipeline, and the water tank is positioned at the inlet end of the circulating pump; the cold water supply main pipe is communicated with the outlet end of the circulating pump when the circulating pump is switched off, and the cold water supply main pipe is communicated with the water tank when the circulating pump runs;
the steam-water heat exchanger is provided with a liquid level meter for measuring the level of condensate in the shell pass of the steam-water heat exchanger, a condensate outlet of the steam-water heat exchanger is connected with a condensate pipeline, the condensate pipeline is provided with a drain valve, and the drain valve is selectively opened or closed according to the measured value of the liquid level meter so as to realize that the level of the condensate in the shell pass of the steam-water heat exchanger is higher than the condensate outlet of the steam-water heat exchanger.
The further technical scheme is as follows: the device also comprises an interlocking control unit, wherein an online temperature detector is arranged at the far end of the heat supply circulating pipeline, and when the temperature signal of the online temperature detector is lower than a set low limit value, the interlocking control unit controls the circulating pump to be started to realize hot water circulation in the heat supply circulating pipeline.
The further technical scheme is as follows: and a first switch control valve is arranged on a pipeline for communicating the cold water supply main pipe with the water tank, and a second switch control valve is arranged on a pipeline for communicating the cold water supply main pipe with the outlet end of the circulating pump.
The further technical scheme is as follows: the device also comprises a steam pipeline for providing a steam heat source for the steam-water heat exchanger, wherein a third switch control valve and a steam flow regulating valve are arranged on the steam pipeline; when the temperature signal of the online temperature detector is lower than a set low limit value, the linkage control unit controls the opening of the steam flow regulating valve to increase; and when the temperature signal of the online temperature detector is higher than a set low limit value, the linkage control unit controls the opening degree of the steam flow regulating valve to be reduced.
The further technical scheme is as follows: the heating system is characterized in that a hot water supply interface is arranged on the heating circulation pipeline, a heating pipeline section and a short circuit secondary pipeline section are arranged on the heating circulation pipeline in parallel, a heating radiator is arranged on the heating pipeline section, a front open-close control valve and a rear open-close control valve are respectively arranged at two ends of the heating pipeline section, and a short circuit secondary pipeline switch control valve is arranged on the short circuit secondary pipeline section.
The further technical scheme is as follows: and the interlocking control unit controls the opening and closing of the liquid discharge valve according to the measured value of the liquid level meter so as to realize that the liquid level of the condensate in the shell side of the steam-water heat exchanger is higher than the condensate outlet of the steam-water heat exchanger.
The further technical scheme is as follows: the steam-water heat exchanger is characterized in that an upper interface pipeline and a lower interface pipeline are arranged on the shell pass of the steam-water heat exchanger, an upper valve is installed in the upper interface pipeline, a lower valve is installed in the lower interface pipeline, and the upper interface pipeline is communicated with the lower interface pipeline through a side pipe provided with the liquid level meter.
The further technical scheme is as follows: and the outlet end of the circulating pump is provided with a check valve, and the cold water supply main pipe is communicated with the outlet end of the check valve when the circulating pump is closed.
The further technical scheme is as follows: an exhaust valve is installed on the water tank.
The further technical scheme is as follows: the hot water supply interface comprises a high-temperature hot water supply interface, a bathing water supply interface and a low-temperature hot water supply interface which are sequentially arranged along the circulation direction of the heat supply circulation pipeline, the high-temperature hot water supply interface is arranged at the upstream of the heat supply pipeline section, the bathing water supply interface is arranged at the downstream of the heat supply pipeline section, and the on-line temperature detector is arranged between the heat supply pipeline section and the bathing water supply interface.
The beneficial effects of the technical scheme are mainly embodied in the following aspects:
(1) the utility model discloses under the effect of circulating pump, hot water obtains the continuous circulation heating in the heat supply circulating line, ensures that temperature can not reduce in the heat supply circulating line to obviously promote hot water user's water experience.
Under the working environment of non-heating seasons, the heating pipe section is stopped, isolated and protected, the system heat load is low, and the steam consumption is small. The circulating pump is normally in a pump stopping state, and the heat supply circulating pipeline does not form a complete circulating loop and is mainly used for meeting the hot water supply of each user. When a hot water user uses water, the domestic water is timely supplemented to an outlet pipeline of the circulating pump through the second switch control valve, enters a heat supply circulating pipeline, becomes hot water after being heated by the steam-water heat exchanger, and ensures the water quantity balance of the hot water supply system.
Under the working environment of heating season, the heating pipe section is put into use, the system heat load is high, and the steam consumption is large. The circulating pump needs high-frequency continuous operation, and a heat supply circulating pipeline forms a complete circulating loop to meet the requirements of heating and hot water of each user. When hot water users use water, domestic water can be timely supplemented into the water tank at the inlet end of the circulating pump through the second switch control valve, so that the circulating pump is prevented from being pumped out, and the water balance of the heat supply circulating pipeline is maintained.
(2) The utility model discloses an utilize the interlocking control unit, when the temperature that the online temperature detector detected was continuously less than and sets for the low limit value definite time (can set for), interlocking start-up circulating pump makes heat supply circulation pipeline temporarily form circulation circuit in order to realize the circulation heat transfer, and the hot water temperature in the heat supply circulation pipeline will rise gradually. The circulating pump automatically stops after running for a certain time (which can be set). So, through setting for suitable settlement low limit value, can effectively ensure that the interior water temperature of heat supply circulation pipeline is in between normal value and low limit value constantly, hot water user's water experience obviously promotes. Of course, the interlock control unit can be selectively activated or deactivated according to needs, for example, when continuous heating needs to be met and hot water in the heating circulation pipeline needs to be heated continuously in a circulation mode, the interlock control unit can be selectively deactivated, so that water using experience of hot water users is not affected.
The device makes full use of the low-pressure steam which is abundant in the production process of enterprises to serve as a water heat source for heating enterprises, bathrooms, dining halls and the like. The low-pressure steam and the domestic water are subjected to heat exchange through the steam-water heat exchanger to obtain hot water, and the hot water is supplied to hot water users such as bathrooms and dining halls all year round.
(3) Steam flow control valve passes through the chain regulation of the measured data of online temperature detector, and the spacing data of specific valve aperture can be adjusted according to actual conditions, generally selects 5% ~ 100% as appropriate. Through presetting a reasonable set low limit value, when the online temperature detector detects that the actual temperature is lower than the set low limit value, the opening of the steam flow regulating valve is gradually increased, so that the heat exchange effect of the steam-water heat exchanger is enhanced; when the online temperature detector detects that the actual temperature is higher than the set low limit value, the opening of the steam flow regulating valve is gradually reduced.
In non-heating seasons, the environmental temperature is generally higher, the cold water inlet temperature is higher, the heat loss of the pipeline is properly reduced, and meanwhile, the heat load of the whole heat supply circulating pipeline is greatly reduced due to the isolation and removal of the heating pipeline sections. Therefore, the consumption of low-pressure steam is generally lower in non-heating seasons, and the third switch control valve only needs to be opened partially to limit the maximum steam flow and avoid waste and pipe network fluctuation.
(4) The utility model can effectively adapt to the change of heating load and provide high-quality hot water when being put into use all the year round; the problem that the initial hot water supply temperature is too low when the hot water is used intermittently can be effectively solved, the hot water requirements of various users are fully met, and the water consumption experience of the users is obviously improved; the device has two interfaces of high-temperature hot water and low-temperature hot water, and can meet the requirements of different types of users; a heating system is added in the heating season, and hot water is used as a heating medium for continuous heating, so that the working environment of an enterprise is greatly improved; the hot water heating generated by steam heat exchange replaces air-conditioning heating, can effectively save the heating cost, has certain economic benefit, and has the advantages of environmental friendliness and no three-waste emission basically.
(5) The utility model discloses utilize the level gauge to show the liquid level of condensate in the steam-water heat exchanger shell side, and replace traditional steam trap with the flowing back valve on the condensate pipeline, can realize controlling the liquid level of condensate in the steam-water heat exchanger shell side, namely keep steam-water heat exchanger shell side to have certain liquid level all the time, this structure can avoid the condensate to carry the steam and discharge, practices thrift steam; meanwhile, as the shell side of the steam-water heat exchanger always has condensate, the steam can be condensed and released when meeting the condensate, the latent heat of the steam is fully released, and the heat exchange effect of the steam-water heat exchanger is greatly improved.
(6) The utility model discloses an automatic interlocking control of level gauge and flowing back valve door is realized to the interlocking control unit, promptly: when the liquid level meter obtains that the liquid level of the condensate of the shell pass of the steam-water heat exchanger is lower than a set liquid level value, the interlocking control unit controls the drain valve to be automatically closed; and when the liquid level meter obtains that the liquid level of the condensate of the shell pass of the steam-water heat exchanger is higher than a set liquid level value, the interlocking control unit controls the drain valve to automatically beat and drain the condensate. The utility model provides the high control accuracy of hydrophobic process to improve steam-water heat exchanger's heat transfer effect.
(7) Go up interface pipeline, side pipe, lower interface pipeline and steam-water heat exchanger shell side and form the linker structure to be convenient for the level gauge to the measurement of steam-water heat exchanger shell side condensate liquid level, this simple structure, the cost of manufacture is low, can be effectively used for solving the poor problem of steam-water heat exchanger drainage effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a steam-water heat exchanger.
The notations in the figures have the following meanings:
1-a circulating pump; 2-steam-water heat exchanger; 3-a check valve; 4-a second on-off control valve; 5-a drain valve; 6-steam flow regulating valve; 7-a third on-off control valve; 8-front open close control valve; 9-short circuit auxiliary line switch control valve; 10-an online temperature detector; 11-a steam regulation and control linkage control unit; 12-a circulating pump start-stop interlocking control unit; 13-radiator; 14-a water tank; 15-rear opening and closing the control valve; 16-a first on-off control valve; 17-high temperature hot water supply interface; 18-a bath water supply interface; 19-low temperature hot water supply interface; 20-a heating cycle line; 21-cold water supply mains; 21-a steam line; 23-a condensate line; 2 a-a liquid level meter; 2 b-a steam-water heat exchanger tube pass; 2 c-upper valve; 2 d-lower valve.
Detailed Description
The structural features of the present invention will now be described with reference to the accompanying drawings:
as shown in fig. 1: the utility model comprises an interlocking control unit, a steam-water heat exchanger 2 and a cold water supply header 21; a cold water inlet and a hot water outlet of the steam-water heat exchanger 2 are communicated to form a heat supply circulating pipeline 20, a circulating pump 1 and a water tank 14 are installed on the heat supply circulating pipeline 20, the water tank 14 is positioned at an inlet end of the circulating pump 1, and an outlet end of the circulating pump 1 is provided with a check valve 3; the cold water supply manifold 21 communicates with the outlet end of the check valve 3 when the circulation pump 1 is off, and the cold water supply manifold 21 communicates with the tank 14 when the circulation pump 1 is on. The circulation pump 1 is installed near the cold water inlet of the steam-water heat exchanger 2.
The device also comprises an interlocking control unit, wherein an online temperature detector 10 is arranged at the far end of the heat supply circulating pipeline 20, and when the temperature signal of the online temperature detector 10 is lower than a set low limit value, the interlocking control unit controls the circulating pump 1 to be started to realize hot water circulation in the heat supply circulating pipeline 20.
A first switch control valve 16 is arranged on a pipeline of the cold water supply main pipe 21 communicated with the water tank 14, and a second switch control valve 4 is arranged on a pipeline of the cold water supply main pipe 21 communicated with the outlet end of the circulating pump 1.
The device also comprises a steam pipeline for providing a steam heat source for the steam-water heat exchanger 2, wherein a third switch control valve 7 and a steam flow regulating valve 6 are arranged on the steam pipeline, and a steam condensate outlet of the steam-water heat exchanger 2 is provided with a steam trap valve group 5; when the temperature signal of the online temperature detector 10 is lower than a set low limit value, the interlocking control unit controls the opening of the steam flow regulating valve 6 to increase; when the temperature signal of the online temperature detector 10 is higher than a set low limit value, the interlocking control unit controls the opening degree of the steam flow regulating valve 6 to be reduced.
The heating circulation pipeline 20 is provided with a hot water supply interface, the heating circulation pipeline 20 is provided with a heating pipeline section and a short circuit secondary pipeline section which are arranged in parallel, a heating radiator 13 is arranged on the heating pipeline section, two ends of the heating pipeline section are respectively provided with a front open-close control valve 8 and a rear open-close control valve 15, and the short circuit secondary pipeline section is provided with a short circuit secondary switch control valve 9.
The hot water supply interface comprises a high-temperature hot water supply interface 17, a bathing water supply interface 18 and a low-temperature hot water supply interface 19 which are sequentially arranged along the circulation direction of a heat supply circulation pipeline 20, wherein the high-temperature hot water supply interface 17 is arranged at the upstream of a heating pipe section, the bathing water supply interface 18 is arranged at the downstream of the heating pipe section, and the online temperature detector 10 is arranged between the heating pipe section and the bathing water supply interface 18. The temperature of the hot water in the heating circulation pipeline 20 is gradually reduced along the circulation direction, so that the temperature of the water at the high-temperature hot water supply interface 17 is the highest, and the temperature of the water at the low-temperature hot water supply interface 19 is the lowest. The high temperature hot water supply interface 17, the bath water supply interface 18 and the low temperature hot water supply interface 19 can be selected by a user, so that the utilization rate of hot water with different temperatures is improved.
The utility model discloses the steam heat source is the abundant low pressure steam of industrial enterprise, and concrete pressure requires between 0.3 ~ 0.5MPa, generally chooses for use 0.5MPa low pressure steam. The utility model discloses the working process is as follows:
the low-pressure steam is led out from the pipe network, enters the shell pass of the steam-water heat exchanger 2 after passing through a third switch control valve 7 and a steam flow regulating valve 6, and condensate generated after heat exchange is discharged in time through a steam trap valve group 5 and returns to a condensate pipe network. The domestic water is connected to a heat supply circulating pipeline 20 through a cold water supply main pipe 21, a first switch control valve 16 or a second switch control valve 4, then enters a pipe pass of the steam-water heat exchanger 2, and hot water is obtained through sufficient heat exchange. The hot water can be supplied to high-temperature hot water users, radiators, bathrooms, low-temperature hot water users and the like. The water temperature at the far end of the heat supply circulating pipeline 20 is measured by an online temperature detector, and data are fed back to the interlocking control unit, so that the opening of the steam flow regulating valve 6 and the start and stop of the circulating pump 1 are respectively adjusted in an interlocking manner.
The utility model discloses an utilize the interlocking control unit, when the temperature that online temperature detector 10 detected lasted to be less than and sets for the low limit value definite time (can set for), interlocking start-up circulating pump 1 makes heat supply circulation pipeline 20 temporarily form circulation circuit in order to realize the circulation heat transfer, and the hot water temperature will rise gradually in the heat supply circulation pipeline 20. The circulation pump 1 is automatically stopped after a certain time (settable) of operation. So, through setting for suitable settlement low limit value, can effectively ensure that the interior water temperature of heat supply circulation pipeline is in between normal value and low limit value constantly, hot water user's water experience obviously promotes.
Steam flow control valve 6 is through the chain regulation of the detection data of online temperature detector 10, and the spacing data of specific valve aperture can be adjusted according to actual conditions, generally selects 5% ~ 100% as appropriate. Through presetting a reasonable set low limit value, when the online temperature detector 10 detects that the actual temperature is lower than the set low limit value, the opening degree of the steam flow regulating valve 6 is gradually increased, so that the heat exchange effect of the steam-water heat exchanger is enhanced; when the online temperature detector 10 detects that the actual temperature is higher than the set low limit value, the opening of the steam flow regulating valve 6 is gradually reduced.
Under the working environment of non-heating seasons, the heating pipe section is stopped, isolated and protected, the system heat load is low, and the steam consumption is small. The circulating pump 1 is normally in a pump stop state, and the heat supply circulating pipeline does not form a circulating loop and is mainly used for meeting the hot water supply of each user. When a hot water user uses water, domestic water is timely supplemented to an outlet pipeline of the circulating pump 1 through the second switch control valve 4, enters the heat supply circulating pipeline 20, is heated by the steam-water heat exchanger 2 to form hot water, and the water balance of the hot water supply system is ensured.
In non-heating seasons, the ambient temperature is generally high, the cold water inlet temperature is high, the heat loss of the pipeline is reduced properly, and meanwhile, the heat load of the whole heat supply circulating pipeline 20 is greatly reduced due to the isolation and removal of the heating pipeline sections. Therefore, the consumption of low-pressure steam is generally lower in non-heating seasons, and the third switch control valve 7 only needs to be opened partially to limit the maximum steam flow and avoid waste and pipe network fluctuation.
Under the working environment of heating season, the heating pipe section is put into use, the system heat load is high, and the steam consumption is large. The circulating pump 1 needs to continuously operate at high frequency, and the heat supply circulating pipeline 20 forms a complete circulating loop to meet the requirements of heating and hot water of each user. When the hot water user uses water, the domestic water can be timely supplemented into the water tank 14 at the inlet end of the circulating pump through the second switch control valve 16, so that the circulating pump 1 is prevented from being pumped out and the water balance of the heat supply circulating pipeline is maintained.
In the heating cycle line 20, the other hot water connections are typically intermittent with the use of hot water, except for the section of the heating pipe that requires continuous heating to remove heat. In order to ensure normal heating of a heating system, the variable-frequency circulating pump 1 needs to continuously operate to form a hot water circulating loop for continuous heating, and the circulating pump start-stop interlocking control unit 12 cannot be used and needs to be cut off. The flow rate of the variable frequency circulating pump 1 is set based on the load of the heating system and is realized by variable frequency regulation.
The device makes full use of the low-pressure steam which is abundant in the production process of enterprises to serve as a water heat source for heating enterprises, bathrooms, dining halls and the like. The low-pressure steam and the domestic water are subjected to heat exchange through the steam-water heat exchanger to obtain hot water, and the hot water is supplied to hot water users such as bathrooms and dining halls all year round.
As shown in fig. 2: the utility model discloses a steam-water heat exchanger 2, be equipped with level gauge 2a that is used for measuring the condensate liquid level in 2 shell passes of steam-water heat exchanger on the steam-water heat exchanger 2, the condensate outlet connection condensate pipeline 23 of steam-water heat exchanger 2, be equipped with flowing back valve 5 on the condensate pipeline 23.
The assembly further comprises an interlocking control unit, and the interlocking control unit controls the opening and closing of the liquid discharge valve 5 according to the measured value of the liquid level meter 2a so as to realize that the liquid level of the condensate in the shell side of the steam-water heat exchanger 2 is higher than the condensate outlet of the steam-water heat exchanger 2.
An upper interface pipeline and a lower interface pipeline are arranged on the shell pass of the steam-water heat exchanger 2, an upper valve 2c is installed in the upper interface pipeline, a lower valve 2d is installed in the lower interface pipeline, and the upper interface pipeline and the lower interface pipeline are communicated through a side pipe of the liquid level meter 2 a.
For example: and 0.5MPa steam from a steam pipeline g enters a shell side of the steam-water heat exchanger and medium water in a tube side h of the steam-water heat exchanger for heat exchange. Steam is changed into condensate after heat exchange, the condensate is removed from a condensate pipeline 23, a steam trap is usually arranged on the traditional condensate pipeline 23, a drain valve 5 is used for replacing the function of the steam trap, a liquid level meter 2a is arranged between an upper valve 2c and a lower valve 2d of a shell side of the steam-water heat exchanger and is matched with the drain valve 5 for use, and the drain valve 5 can control the level of the condensate in the shell side of the steam-water heat exchanger to be about 20%. Because the shell pass of the steam-water heat exchanger always has condensate, the steam can be condensed and released when meeting the condensate, the latent heat of the steam is fully released, and the heating effect of medium water in the tube pass h of the steam-water heat exchanger is better.
In the use process of the traditional steam trap, the impurities such as scrap iron and the like in the steam pipeline can block the steam trap and damage the steam trap; sometimes, the condition of low regeneration temperature can occur, the water regeneration effect is poor, and a large amount of steam is mixed in the water drained by draining the condensate, which indicates that the drainage effect of the steam trap is poor, the latent heat of the steam is not fully utilized, and economic loss is caused to enterprises. The utility model discloses use with the cooperation of level gauge 2a and flowing back valve 5, just can avoid 2 heat transfer effects of steam-water heat exchanger poor, the condensate smugglies a large amount of steam problems secretly, also plays the effect of practicing thrift steam.
Claims (10)
1. The utility model provides a waste heat utilization integrated device which characterized in that: comprises a steam-water heat exchanger (2) and a cold water supply main pipe (21);
a cold water inlet and a hot water outlet of the steam-water heat exchanger (2) are communicated to form a heat supply circulating pipeline (20), a circulating pump (1) and a water tank (14) are installed on the heat supply circulating pipeline (20), and the water tank (14) is positioned at the inlet end of the circulating pump (1); the cold water supply main pipe (21) is communicated with the outlet end of the circulating pump when the circulating pump (1) is switched off, and the cold water supply main pipe (21) is communicated with the water tank (14) when the circulating pump (1) is operated;
the device is characterized in that a liquid level meter (2a) used for measuring the liquid level of the condensate in the shell pass of the steam-water heat exchanger (2) is arranged on the steam-water heat exchanger (2), a condensate outlet of the steam-water heat exchanger (2) is connected with a condensate pipeline (23), a liquid discharge valve (5) is arranged on the condensate pipeline (23), and the liquid discharge valve (5) is selectively opened or closed according to the measured value of the liquid level meter (2a) so as to realize that the liquid level of the condensate in the shell pass of the steam-water heat exchanger (2) is higher than the condensate outlet of the steam-water heat exchanger (2).
2. The integrated waste heat utilization device according to claim 1, wherein: the device also comprises an interlocking control unit, wherein an online temperature detector (10) is arranged at the far end of the heat supply circulating pipeline (20), and when the temperature signal of the online temperature detector (10) is lower than a set low limit value, the interlocking control unit controls the circulating pump (1) to be started to realize hot water circulation in the heat supply circulating pipeline (20).
3. The integrated waste heat utilization device according to claim 1, wherein: a first switch control valve (16) is installed on a pipeline through which the cold water supply main pipe (21) is communicated with the water tank (14), and a second switch control valve (4) is installed on a pipeline through which the cold water supply main pipe (21) is communicated with the outlet end of the circulating pump (1).
4. The integrated waste heat utilization device according to claim 2, wherein: the device also comprises a steam pipeline (22) for providing a steam heat source for the steam-water heat exchanger (2), wherein a third switch control valve (7) and a steam flow regulating valve (6) are arranged on the steam pipeline; when the temperature signal of the online temperature detector (10) is lower than a set low limit value, the linkage control unit controls the opening of the steam flow regulating valve (6) to increase; when the temperature signal of the online temperature detector (10) is higher than a set low limit value, the linkage control unit controls the opening degree of the steam flow regulating valve (6) to be reduced.
5. The integrated waste heat utilization device according to claim 1, wherein: the heating circulation pipeline (20) is provided with a hot water supply interface, the heating circulation pipeline (20) is provided with a heating pipeline section and a short circuit secondary line pipeline section which are arranged in parallel, a heating plate (13) is arranged on the heating pipeline section, two ends of the heating pipeline section are respectively provided with a front open-close control valve (8) and a rear open-close control valve (15), and the short circuit secondary line section is provided with a short circuit secondary line open-close control valve (9).
6. The integrated waste heat utilization device according to claim 2, wherein: the interlocking control unit controls the opening or closing of the liquid discharge valve (5) according to the measured value of the liquid level meter (2 a).
7. The integrated waste heat utilization device according to claim 1, wherein: be equipped with interface pipeline and lower interface pipeline on steam-water heat exchanger (2) shell side, install valve (2c) in the last interface pipeline, install down valve (2d) in the lower interface pipeline, by the installation between last interface pipeline and the lower interface pipeline the side pipe intercommunication of level gauge (2 a).
8. The integrated waste heat utilization device according to claim 1, wherein: the outlet end of the circulating pump (1) is provided with a check valve (3), and the cold water supply main pipe (21) is communicated with the outlet end of the check valve (3) when the circulating pump (1) is closed.
9. The integrated waste heat utilization device according to claim 1, wherein: an exhaust valve is arranged on the water tank (14).
10. The integrated waste heat utilization device according to claim 5, wherein: the hot water supply interface comprises a high-temperature hot water supply interface (17), a bathing water supply interface (18) and a low-temperature hot water supply interface (19) which are sequentially arranged along the circulation direction of a heat supply circulation pipeline (20), wherein the high-temperature hot water supply interface (17) is arranged at the upstream of a heating pipe section, the bathing water supply interface (18) is arranged at the downstream of the heating pipe section, and an online temperature detector (10) is arranged between the heating pipe section and the bathing water supply interface (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248344.0U CN209877067U (en) | 2018-12-29 | 2018-12-29 | Waste heat utilization integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248344.0U CN209877067U (en) | 2018-12-29 | 2018-12-29 | Waste heat utilization integrated device |
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| Publication Number | Publication Date |
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| CN209877067U true CN209877067U (en) | 2019-12-31 |
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| CN201822248344.0U Active CN209877067U (en) | 2018-12-29 | 2018-12-29 | Waste heat utilization integrated device |
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| CN (1) | CN209877067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681940A (en) * | 2018-12-29 | 2019-04-26 | 安徽六国化工股份有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN integrated apparatus |
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2018
- 2018-12-29 CN CN201822248344.0U patent/CN209877067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681940A (en) * | 2018-12-29 | 2019-04-26 | 安徽六国化工股份有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN integrated apparatus |
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