CN105155574A - Sizing block-free installation process special for auxiliary equipment installation of thermal power plant - Google Patents
Sizing block-free installation process special for auxiliary equipment installation of thermal power plant Download PDFInfo
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- CN105155574A CN105155574A CN201510603172.2A CN201510603172A CN105155574A CN 105155574 A CN105155574 A CN 105155574A CN 201510603172 A CN201510603172 A CN 201510603172A CN 105155574 A CN105155574 A CN 105155574A
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- grouting
- parallels
- water
- thermal power
- power plant
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Abstract
The invention provides a sizing block-free installation process special for auxiliary equipment installation of a thermal power plant, which is characterized by comprising the following steps: (1) clearing the surface of a concrete foundation; (2) arranging temporary sizing blocks beside foundation bolts of equipment, and leveling the equipment; (3) erecting formworks: enabling the location elevation of a main formwork to be no less than 50mm higher than the lower surface of an equipment base, erecting a protective formwork between the bottom surface of the equipment base and the lower surface of the concrete foundation, and enabling the temporary sizing blocks to be enclosed by the protective formwork; (4) preparing grouting materials: (4.1) composing dry blend and (4.2) stirring grouting materials; (5) grouting; (6) curing; and (7) withdrawing the temporary sizing blocks, removing a wood formwork, grouting the vacant parts of the temporary sizing blocks in a grouting layer, and finishing the installation after the vacant parts are solidified. The process has no need of welding or reforming an equipment body and is capable of lowering the cost and improving the installation efficiency on the premise of ensuring reliable installation.
Description
Technical field
The present invention relates to the mounting process of thermal power plant's auxiliary equipment, specifically a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process.
Background technology
The design of parallels is not all carried out on the basis of the conventional static auxiliary equipment in steam power station and part Aided Machine in equipment manufacturer and designing institute's basic engineering process, but in work progress, in order to ensure the correct installation of equipment, adopt arranges parallels centering grouting process more.Because this equipment component basic part is frame construction, frame deformation is large, cannot avoid producing certain gap between parallels and plant bottom case; Plant bottom case can be produced at parallels place local pressure, form " hard spot; During back-grouting, before in place, the polishing sole plate of paint removal and parallels will corrosions again, secondary slurry and base plate strong bonded when being unfavorable for whole foundation grouting, impact basis and Whole Equipment.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, under the reliable prerequisite of guarantee installation, can also reduce costs, improve installation effectiveness.
In order to solve the problem, the present invention by the following technical solutions: a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, its feature comprises the steps:
1) clean the surface of concrete foundation, the foreign material such as rubble, laitance, dust, greasy dirt and release agent must not be had;
2) an interim parallels is set on each stone bolt side of equipment, adjusts the height of interim parallels by equipment leveling;
3) install template: at plant bottom case frame arranged outside master module, master module location absolute altitude exceeds than plant bottom case soffit and is not less than 50mm; Between plant bottom case bottom surface and the soffit of concrete foundation, install protecting formwork, interim parallels fences up by protecting formwork;
4) preparation of grouting material:
4.1) composition of dry blend: percentage by weight is the Portland cement of 45%-48%, percentage by weight is the Concrete admixtures of 3%-5%, and percentage by weight is the thickening water conservation composition of 3%-5%, and percentage by weight is the aggregate of 45%-48%;
4.2) stirring of grouting material: to add water in dry blend stirring by the amount of water of the 12%-14% of dry mixture weight, water temperature is 5 ~ 40 DEG C; When adopting mechanical agitation, the time is generally 1 ~ 2 minute; When employing is manually stirred, then first add total water consumption 2/3 stir 2 minutes, then adds residue water supply volume and continue to be stirred to evenly;
5) be in the milk:
5.1) be in the milk first 24 hours, equipment Foundations surface should be fully moistening; Be in the milk first 1 hour, should ponding be blotted;
5.2) answer the air between device for transferring support and concrete foundation during slurry, grouting is enriched; Can not vibrate in filling process; Until before the demoulding in grouting construction process, grout blanket should be avoided to be vibrated and collide, not tie hard grout blanket in order to avoid damage;
6) maintenance; After grouting in 30 minutes, spray curing agent or covered with plastic film and add a cover rock wool by etc. carry out maintenance, or moisture-keeping maintaining of sprinkling water immediately after grout blanket final set; Until be frozen into grout blanket;
7) extract interim parallels out, remove wooden form, then implement grouting to the vacancy position at the interim parallels place in grout blanket, this place installs after solidifying.
Further technical scheme as the present invention adopts: this is without in parallels mounting process, and when preparing grouting material, water temperature is 20-23 DEG C.
Further: carry out pulling water conservancy diversion with bamboo lath during grouting.
Further: aggregate is 6 to 40 object quartz sands.
Further: thickening water-retaining component is redispersable latex powder.
The invention has the beneficial effects as follows: the present invention just adjusts the mounting method of equipment, do not carry out welding or transforming on apparatus body, under reliable prerequisite is installed in guarantee, can also reduce costs, improve installation effectiveness.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described further:
Fig. 1 is the schematic diagram (top view) after installing template in the embodiment of the present invention;
Fig. 2 is interim position relationship schematic diagram between parallels and protecting formwork in the installation process of the embodiment of the present invention;
In figure: 1 protecting formwork, 2 interim parallels, 3 plant bottom cases, 4 concrete foundations, 5 master modules, 6 stone bolt.
Detailed description of the invention
This be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, comprise the steps:
1) clean the surface of concrete foundation 4, the foreign material such as rubble, laitance, dust, greasy dirt and release agent must not be had;
2) an interim parallels 2 is set on each stone bolt 6 side of equipment, adjusts the height of interim parallels 2 by equipment leveling;
3) install template: as shown in Figure 1, 2, at plant bottom case 3 frame arranged outside master module 5, master module 5 is located absolute altitude and is exceeded than plant bottom case 3 soffit and be not less than 50mm; Between plant bottom case 3 bottom surface and the soffit of concrete foundation 4, install protecting formwork 1, interim parallels 2 fences up by protecting formwork 1;
4) preparation of grouting material:
4.1) composition of dry blend: percentage by weight is the Portland cement of 45%-48%, percentage by weight is the Concrete admixtures of 3%-5%, and percentage by weight is the thickening water conservation composition of 3%-5%, and percentage by weight is the aggregate of 45%-48%;
Concrete admixtures comprises expansion agent, early strength admixture, water reducing agent, and conventional expansion agent has gypsum, calcium sulphoaluminate, calcium oxide etc., and early strength admixture has sodium sulphate, lithium chloride etc., water reducing agent has naphthalene system, melamine based water reducer etc., this is all prior art, repeats no more herein, only illustrates.Wherein be combined.Thickening water-retaining component is cellulose ether or redispersable latex powder, preferred redispersable latex powder in this embodiment.Aggregate is 6 to 40 object quartz sands;
4.2) stirring of grouting material: to add water in dry blend stirring by the amount of water of the 12%-14% of dry mixture weight, water temperature is 5 ~ 40 DEG C; When adopting mechanical agitation, the time is generally 1 ~ 2 minute; When employing is manually stirred, then first add total water consumption 2/3 stir 2 minutes, then adds residue water supply volume and continue to be stirred to evenly;
The further technology adopted in this embodiment: when preparing grouting material, water temperature is preferably 20-23 DEG C, makes to form the performance of grouting material and more meets grouting requirement, improves the compliance of grouting material to weather and various operating mode, ensures to install solid and reliable;
5) be in the milk:
5.1) be in the milk first 24 hours, equipment Foundations surface should be fully moistening; Be in the milk first 1 hour, should ponding be blotted;
5.2) answer the air between device for transferring support 3 and concrete foundation 4 during slurry, grouting is enriched; Can not vibrate in filling process; Until before the demoulding in grouting construction process, grout blanket should be avoided to be vibrated and collide, not tie hard grout blanket in order to avoid damage;
Further: can to carry out pulling water conservancy diversion with bamboo lath during grouting;
6) maintenance; After grouting in 30 minutes, spray curing agent or covered with plastic film and add a cover rock wool by etc. carry out maintenance, or moisture-keeping maintaining of sprinkling water immediately after grout blanket final set; Until be frozen into grout blanket (reaching 70% intensity);
8) remove master module 5, protecting formwork 1, extract interim parallels 2 out, then implement grouting to the vacancy position at the interim parallels place in grout blanket, this place installs after solidifying.
This mounting process is exclusively used in the auxiliary equipment of steam power station, comprises static auxiliary equipment (high-pressure heater, low-pressure heater, oxygen-eliminating device, valve, oil cooler, heat exchanger, ball collector, fuel tank, steam and water sampling ap paratus, case tank body, water strainer etc.) and part Aided Machine (chemical water pump, oil transfer pump, feed pump turbine petrol station, reconditioner, rubber ball cleaning pump, therrmodynamic system chemicals dosing plant, dredge pump etc.).
Claims (5)
1. be exclusively used in that thermal power plant auxiliary equipment installs without a parallels mounting process, it is characterized in that: comprise the steps:
1) clean the surface of concrete foundation, the foreign material such as rubble, laitance, dust, greasy dirt and release agent must not be had;
2) an interim parallels is set on each stone bolt side of equipment, adjusts the height of interim parallels by equipment leveling;
3) install template: at plant bottom case frame arranged outside master module, master module location absolute altitude exceeds than plant bottom case soffit and is not less than 50mm; Between plant bottom case bottom surface and the soffit of concrete foundation, install protecting formwork, interim parallels fences up by protecting formwork;
4) preparation of grouting material:
4.1) composition of dry blend: percentage by weight is the Portland cement of 45%-48%, percentage by weight is the Concrete admixtures of 3%-5%, and percentage by weight is the thickening water conservation composition of 3%-5%, and percentage by weight is the aggregate of 45%-48%;
4.2) stirring of grouting material: to add water in dry blend stirring by the amount of water of the 12%-14% of dry mixture weight, water temperature is 5 ~ 40 DEG C; When adopting mechanical agitation, the time is generally 1 ~ 2 minute; When employing is manually stirred, then first add total water consumption 2/3 stir 2 minutes, then adds residue water supply volume and continue to be stirred to evenly;
5) be in the milk:
5.1) be in the milk first 24 hours, equipment Foundations surface should be fully moistening; Be in the milk first 1 hour, should ponding be blotted;
5.2) answer the air between device for transferring support and concrete foundation during slurry, grouting is enriched; Can not vibrate in filling process; Until before the demoulding in grouting construction process, grout blanket should be avoided to be vibrated and collide, not tie hard grout blanket in order to avoid damage;
6) maintenance; After grouting in 30 minutes, spray curing agent or covered with plastic film and add a cover rock wool by etc. carry out maintenance, or moisture-keeping maintaining of sprinkling water immediately after grout blanket final set; Until be frozen into grout blanket;
7) extract interim parallels out, remove wooden form, then implement grouting to the vacancy position at the interim parallels place in grout blanket, this place installs after solidifying.
2. according to claim 1 a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, it is characterized in that: when preparing grouting material, water temperature is 20-23 DEG C.
3. according to claim 1 and 2 a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, it is characterized in that: carry out pulling water conservancy diversion with bamboo lath during grouting.
4. according to claim 1 and 2 a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, it is characterized in that: aggregate is 6 to 40 object quartz sands.
5. according to claim 1 and 2 a kind of be exclusively used in that thermal power plant auxiliary equipment installs without parallels mounting process, it is characterized in that: thickening water-retaining component is redispersable latex powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603172.2A CN105155574A (en) | 2015-09-21 | 2015-09-21 | Sizing block-free installation process special for auxiliary equipment installation of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603172.2A CN105155574A (en) | 2015-09-21 | 2015-09-21 | Sizing block-free installation process special for auxiliary equipment installation of thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN105155574A true CN105155574A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510603172.2A Pending CN105155574A (en) | 2015-09-21 | 2015-09-21 | Sizing block-free installation process special for auxiliary equipment installation of thermal power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499676A (en) * | 2016-12-06 | 2017-03-15 | 中国电建集团河南工程公司 | Sea water direct air-cooling units water circulating pump installation method |
| CN106836272A (en) * | 2017-03-31 | 2017-06-13 | 中国化学工程第七建设有限公司 | The jackscrew adjusting method construction technology that a kind of equipment is installed without parallels |
| CN113622458A (en) * | 2021-07-30 | 2021-11-09 | 河南沃克曼建设工程有限公司 | Construction method for carrying out high-speed steam turbine modular installation by utilizing jackscrew |
-
2015
- 2015-09-21 CN CN201510603172.2A patent/CN105155574A/en active Pending
Non-Patent Citations (5)
| Title |
|---|
| 保承军: "动设备无垫铁安装施工工艺", 《甘肃科技》 * |
| 吴杰: "大型工业设备机组基础安装的探讨", 《福建轻纺》 * |
| 周占达: "浅谈CGM高强无收缩灌浆料的施工工艺", 《工业建筑》 * |
| 屠晓娟等人: "离心式压缩机组无垫铁安装技术", 《江苏建材》 * |
| 朱庚硕: "重型设备无垫铁安装", 《化工矿山技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499676A (en) * | 2016-12-06 | 2017-03-15 | 中国电建集团河南工程公司 | Sea water direct air-cooling units water circulating pump installation method |
| CN106836272A (en) * | 2017-03-31 | 2017-06-13 | 中国化学工程第七建设有限公司 | The jackscrew adjusting method construction technology that a kind of equipment is installed without parallels |
| CN113622458A (en) * | 2021-07-30 | 2021-11-09 | 河南沃克曼建设工程有限公司 | Construction method for carrying out high-speed steam turbine modular installation by utilizing jackscrew |
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Application publication date: 20151216 |
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