Deman Customers Case Study

Textile Industry

Hardware Industry

Plastics Industry

Automotive Parts

Textile Industry

Fuzhou Changle Huaya Textile

Fuzhou Changle Huaya Textile is one of China’s top ten polyester yarn brands. It covers over 300 acres, with more than 1,000 employees, and an annual output value exceeding 5 billion yuan. Deman upgraded the air compressor systems in their No.1 and No.3 spinning workshops. It’s been running stably for over a year since the upgrade with an annual electricity savings ≈ 350,000 kWh

2025-06-28

Zhejiang Xinao Textile Co., Ltd.

Under China’s dual-carbon goals, Xinao, a global leader in wool spinning, stays committed to sustainability and green innovation in wool processing. Deman custom-designed the first ＞40 m³ "Class 1 Energy Efficiency Compressed Air Station" in the fine wool textile industry for Xinao, achieving a power transmission efficiency of 65.1%, exceeding the Class 1 energy efficiency standard by 12.24%.

2024-01-11

Zhejiang Newchuwa Wool Co., Ltd.

Compressed air powers modern textile equipment, directly contacting yarn, requiring high quality and large consumption. Optimizing its use is key to energy management. Deman built the first "Class 1 Energy Efficiency Compressed Air Station" in Jiaxing for Zhejiang Newchuwa Wool Co., Ltd., achieving annual electricity savings of ≈190,000 kWh

2023-02-12

Since 1998, our mission is to create infinite value for clients through efficient use of compressed air.

Website

News About Deman

Contact us

Ningbo Address: No. 188 Yueci Road, Cixi, Zhejiang, China

Hangzhou Address: No. 1407, 14th Floor, UDC Starlight Times, Wentao Road,
Binjiang District, Hangzhou, Zhejiang, China

Shenzhen 367-6 Guangshen Road, Xiner Community, Xinqiao Street,
Baoan District, Shenzhen, China

基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.000593s ] mysql:host=127.0.0.1;port=3306;dbname=deman;charset=utf8mb4
[ SQL ] SHOW COLUMNS FROM `en_portal_category` [ RunTime:0.001524s ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `status` = 1 AND `parent_id` = 0 ORDER BY `list_order` ASC [ RunTime:0.001163s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 80, 'filtered' => 1.25, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 1 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.000771s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 80, 'filtered' => 1.25, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 2 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.001162s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 80, 'filtered' => 1.25, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 3 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.000954s ]
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[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 4 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.001149s ]
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[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 43 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.000730s ]
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[ SQL ] SELECT * FROM `en_portal_category` WHERE `parent_id` = 85 AND `status` = 1 ORDER BY `list_order` ASC [ RunTime:0.000833s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 80, 'filtered' => 1.25, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `id` = 34 AND `status` = 1 LIMIT 1 [ RunTime:0.001023s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '8', 'ref' => 'const', 'rows' => 1, 'filtered' => 100, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `en_portal_post` [ RunTime:0.001278s ]
[ SQL ] SELECT * FROM `en_portal_post` WHERE `classify_id` = '1' AND `id` = 2 AND `post_status` = 1 [ RunTime:0.001949s ]
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[ SQL ] SELECT * FROM `en_portal_category` WHERE `id` = 34 LIMIT 1 [ RunTime:0.000738s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '8', 'ref' => 'const', 'rows' => 1, 'filtered' => 100, 'extra' => NULL, ) ]
[ SQL ] SELECT * FROM `en_portal_category` WHERE `id` = 4 LIMIT 1 [ RunTime:0.000997s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_portal_category', 'partitions' => NULL, 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '8', 'ref' => 'const', 'rows' => 1, 'filtered' => 100, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `en_theme_file` [ RunTime:0.001414s ]
[ SQL ] SELECT * FROM `en_theme_file` WHERE `theme` = 'simpleboot3' AND `file` = 'portal/aaa' LIMIT 1 [ RunTime:0.001159s ]
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[ SQL ] UPDATE `en_theme_file` SET `theme`='simpleboot3',`action`='portal/List/index',`file`='portal/aaa',`name`='默认列表模板',`more`='[]',`config_more`='[]',`description`='aaa',`is_public`=0,`list_order`=10 WHERE `theme` = 'simpleboot3' AND `file` = 'portal/aaa' [ RunTime:0.003398s ]
[ SQL ] SELECT * FROM `en_theme_file` WHERE `theme` = 'simpleboot3' AND `file` = 'portal/aaa_detail' LIMIT 1 [ RunTime:0.000774s ]
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[ SQL ] UPDATE `en_theme_file` SET `theme`='simpleboot3',`action`='portal/Article/index',`file`='portal/aaa_detail',`name`='默认详情模板',`more`='[]',`config_more`='[]',`description`='aaa_detail',`is_public`=0,`list_order`=10 WHERE `theme` = 'simpleboot3' AND `file` = 'portal/aaa_detail' [ RunTime:0.001707s ]
[ SQL ] SELECT * FROM `en_theme_file` WHERE `theme` = 'simpleboot3' [ RunTime:0.000809s ]
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[ SQL ] SHOW COLUMNS FROM `en_theme` [ RunTime:0.001166s ]
[ SQL ] UPDATE `en_theme` SET `name`='simpleboot3',`version`='1.0.2',`demo_url`='http://demo.thinkcmf.com',`author`='ThinkCMF',`lang`='zh-cn',`author_url`='http://www.thinkcmf.com',`keywords`='ThinkCMF模板',`description`='ThinkCMF默认模板' WHERE `theme` = 'simpleboot3' [ RunTime:0.001593s ]
[ SQL ] SELECT `more` FROM `en_theme_file` WHERE `theme` = 'simpleboot3' AND ( `is_public` = 1 OR `file` = 'portal/case/index' ) [ RunTime:0.000889s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'en_theme_file', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 2, 'filtered' => 50, 'extra' => 'Using where', ) ]
[ SQL ] SHOW COLUMNS FROM `en_option` [ RunTime:0.001157s ]
[ SQL ] SELECT `option_value` FROM `en_option` WHERE `option_name` = 'storage' LIMIT 1 [ RunTime:0.000695s ]
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[ SQL ] SELECT COUNT(*) AS tp_count FROM ( SELECT count(*) FROM `en_portal_post` `post` INNER JOIN `en_portal_category_post` `category_post` ON `post`.`id`=`category_post`.`post_id` WHERE `post`.`post_status` = 1 AND `post`.`post_type` = 1 AND `post`.`delete_time` = 0 AND ( `category_post`.`category_id` = '34' ) AND ( `post`.`published_time` > '0' and `post`.`published_time` < 1754042014 ) GROUP BY `post`.`id` ) `_group_count_` LIMIT 1 [ RunTime:0.001169s ]
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[ SQL ] SELECT post.*,min(category_post.category_id) as category_id FROM `en_portal_post` `post` INNER JOIN `en_portal_category_post` `category_post` ON `post`.`id`=`category_post`.`post_id` WHERE `post`.`post_status` = 1 AND `post`.`post_type` = 1 AND `post`.`delete_time` = 0 AND ( `category_post`.`category_id` = '34' ) AND ( `post`.`published_time` > '0' and `post`.`published_time` < 1754042014 ) GROUP BY `post`.`id` ORDER BY `post`.`published_time` DESC LIMIT 0,9 [ RunTime:0.002789s ]
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